Compare commits
5 Commits
idea133-we
...
kitkat-dev
| Author | SHA1 | Date | |
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081db840be | ||
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04583ce9b9 | ||
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abf91850f9 | ||
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806f3bd7aa | ||
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5fddfb8915 |
@@ -8,5 +8,8 @@ KNOWN ABI BUGS
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sigset_t is too small on ARM and x86 (but correct on MIPS), so support
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for real-time signals is broken. http://b/5828899
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Too few TLS slots mean we can't allocate 128 pthread_key_t instances,
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which POSIX says should be the minimum.
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atexit(3) handlers registered by a shared library aren't called on
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dlclose(3); this only affects ARM. http://b/4998315
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165
HACKING.txt
165
HACKING.txt
@@ -1,165 +0,0 @@
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Working on bionic
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=================
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What are the big pieces of bionic?
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----------------------------------
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libc/ --- libc.so, libc.a
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The C library. Stuff like fopen(3) and kill(2).
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libm/ --- libm.so, libm.a
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The math library. Traditionally Unix systems kept stuff like sin(3) and
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cos(3) in a separate library to save space in the days before shared
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libraries.
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libdl/ --- libdl.so
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The dynamic linker interface library. This is actually just a bunch of
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stubs that the dynamic linker replaces with pointers to its own
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implementation at runtime. This is where stuff like dlopen(3) lives.
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libstdc++/ --- libstdc++.so
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The C++ ABI support functions. The C++ compiler doesn't know how to
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implement thread-safe static initialization and the like, so it just calls
|
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functions that are supplied by the system. Stuff like __cxa_guard_acquire
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and __cxa_pure_virtual live here.
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||||
|
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linker/ --- /system/bin/linker and /system/bin/linker64
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||||
The dynamic linker. When you run a dynamically-linked executable, its ELF
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file has a DT_INTERP entry that says "use the following program to start me".
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||||
On Android, that's either linker or linker64 (depending on whether it's a
|
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32-bit or 64-bit executable). It's responsible for loading the ELF executable
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into memory and resolving references to symbols (so that when your code tries
|
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to jump to fopen(3), say, it lands in the right place).
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||||
|
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tests/ --- unit tests
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The tests/ directory contains unit tests. Roughly arranged as one file per
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publicly-exported header file.
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benchmarks/ --- benchmarks
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The benchmarks/ directory contains benchmarks.
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||||
|
||||
|
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What's in libc/?
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----------------
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libc/
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arch-arm/
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arch-arm64/
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arch-common/
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arch-mips/
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arch-mips64/
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arch-x86/
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arch-x86_64/
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# Each architecture has its own subdirectory for stuff that isn't shared
|
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# because it's architecture-specific. There will be a .mk file in here that
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# drags in all the architecture-specific files.
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bionic/
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||||
# Every architecture needs a handful of machine-specific assembler files.
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# They live here.
|
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include/
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machine/
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||||
# The majority of header files are actually in libc/include/, but many
|
||||
# of them pull in a <machine/something.h> for things like limits,
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||||
# endianness, and how floating point numbers are represented. Those
|
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# headers live here.
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||||
string/
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||||
# Most architectures have a handful of optional assembler files
|
||||
# implementing optimized versions of various routines. The <string.h>
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||||
# functions are particular favorites.
|
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syscalls/
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||||
# The syscalls directories contain script-generated assembler files.
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# See 'Adding system calls' later.
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||||
|
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include/
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# The public header files on everyone's include path. These are a mixture of
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# files written by us and files taken from BSD.
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||||
|
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kernel/
|
||||
# The kernel uapi header files. These are scrubbed copies of the originals
|
||||
# in external/kernel-headers/. These files must not be edited directly. The
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# generate_uapi_headers.sh script should be used to go from a kernel tree to
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# external/kernel-headers/ --- this takes care of the architecture-specific
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# details. The update_all.py script should be used to regenerate bionic's
|
||||
# scrubbed headers from external/kernel-headers/.
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||||
|
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private/
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||||
# These are private header files meant for use within bionic itself.
|
||||
|
||||
stdio/
|
||||
stdlib/
|
||||
unistd/
|
||||
# These are legacy files of unknown provenance. In the past, bionic was a
|
||||
# mess of random versions of random files from all three of FreeBSD, NetBSD,
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# and OpenBSD! We've been working to clean that up, but these directories
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# are basically where all the stuff we haven't got to yet lives.
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dns/
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||||
# Contains the DNS resolver (originates from NetBSD code).
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||||
|
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upstream-dlmalloc/
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upstream-freebsd/
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upstream-netbsd/
|
||||
upstream-openbsd/
|
||||
# These directories contain unmolested upstream source. Any time we can
|
||||
# just use a BSD implementation of something unmodified, we should.
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# The structure under these directories mimics the upstream tree,
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# but there's also...
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android/
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include/
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||||
# This is where we keep the hacks necessary to build BSD source
|
||||
# in our world. The *-compat.h files are automatically included
|
||||
# using -include, but we also provide equivalents for missing
|
||||
# header/source files needed by the BSD implementation.
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||||
|
||||
bionic/
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||||
# This is the biggest mess. The C++ files are files we own, typically
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||||
# because the Linux kernel interface is sufficiently different that we
|
||||
# can't use any of the BSD implementations. The C files are usually
|
||||
# legacy mess that needs to be sorted out, either by replacing it with
|
||||
# current upstream source in one of the upstream directories or by
|
||||
# switching the file to C++ and cleaning it up.
|
||||
|
||||
tools/
|
||||
# Various tools used to maintain bionic.
|
||||
|
||||
tzcode/
|
||||
# A modified superset of the IANA tzcode. Most of the modifications relate
|
||||
# to Android's use of a single file (with corresponding index) to contain
|
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# time zone data.
|
||||
zoneinfo/
|
||||
# Android-format time zone data.
|
||||
# See 'Updating tzdata' later.
|
||||
|
||||
|
||||
Adding system calls
|
||||
-------------------
|
||||
|
||||
Adding a system call usually involves:
|
||||
|
||||
1. Add entries to SYSCALLS.TXT.
|
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See SYSCALLS.TXT itself for documentation on the format.
|
||||
2. Run the gensyscalls.py script.
|
||||
3. Add constants (and perhaps types) to the appropriate header file.
|
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Note that you should check to see whether the constants are already in
|
||||
kernel uapi header files, in which case you just need to make sure that
|
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the appropriate POSIX header file in libc/include/ includes the
|
||||
relevant file or files.
|
||||
4. Add function declarations to the appropriate header file.
|
||||
5. Add at least basic tests. Even a test that deliberately supplies
|
||||
an invalid argument helps check that we're generating the right symbol
|
||||
and have the right declaration in the header file. (And strace(1) can
|
||||
confirm that the correct system call is being made.)
|
||||
|
||||
|
||||
Updating kernel header files
|
||||
----------------------------
|
||||
|
||||
As mentioned above, this is currently a two-step process:
|
||||
|
||||
1. Use generate_uapi_headers.sh to go from a Linux source tree to appropriate
|
||||
contents for external/kernel-headers/.
|
||||
2. Run update_all.py to scrub those headers and import them into bionic.
|
||||
|
||||
|
||||
Updating tzdata
|
||||
---------------
|
||||
|
||||
This is fully automated:
|
||||
|
||||
1. Run update-tzdata.py.
|
||||
|
||||
@@ -1,80 +0,0 @@
|
||||
#
|
||||
# Copyright (C) 2013 The Android Open Source Project
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 (the "License");
|
||||
# you may not use this file except in compliance with the License.
|
||||
# You may obtain a copy of the License at
|
||||
#
|
||||
# http://www.apache.org/licenses/LICENSE-2.0
|
||||
#
|
||||
# Unless required by applicable law or agreed to in writing, software
|
||||
# distributed under the License is distributed on an "AS IS" BASIS,
|
||||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
# See the License for the specific language governing permissions and
|
||||
# limitations under the License.
|
||||
#
|
||||
|
||||
ifneq ($(BUILD_TINY_ANDROID), true)
|
||||
|
||||
LOCAL_PATH := $(call my-dir)
|
||||
|
||||
# -----------------------------------------------------------------------------
|
||||
# Benchmarks.
|
||||
# -----------------------------------------------------------------------------
|
||||
|
||||
benchmark_c_flags = \
|
||||
-O2 \
|
||||
-Wall -Wextra \
|
||||
-Werror \
|
||||
-fno-builtin \
|
||||
-std=gnu++11 \
|
||||
|
||||
benchmark_src_files = \
|
||||
benchmark_main.cpp \
|
||||
math_benchmark.cpp \
|
||||
property_benchmark.cpp \
|
||||
pthread_benchmark.cpp \
|
||||
semaphore_benchmark.cpp \
|
||||
stdio_benchmark.cpp \
|
||||
string_benchmark.cpp \
|
||||
time_benchmark.cpp \
|
||||
unistd_benchmark.cpp \
|
||||
|
||||
# Build benchmarks for the device (with bionic's .so). Run with:
|
||||
# adb shell bionic-benchmarks
|
||||
include $(CLEAR_VARS)
|
||||
LOCAL_MODULE := bionic-benchmarks
|
||||
LOCAL_MODULE_STEM_32 := bionic-benchmarks32
|
||||
LOCAL_MODULE_STEM_64 := bionic-benchmarks64
|
||||
LOCAL_MULTILIB := both
|
||||
LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
|
||||
LOCAL_CFLAGS += $(benchmark_c_flags)
|
||||
LOCAL_C_INCLUDES += external/stlport/stlport bionic/ bionic/libstdc++/include
|
||||
LOCAL_SHARED_LIBRARIES += libstlport
|
||||
LOCAL_SRC_FILES := $(benchmark_src_files)
|
||||
include $(BUILD_EXECUTABLE)
|
||||
|
||||
ifeq ($(HOST_OS)-$(HOST_ARCH),linux-x86)
|
||||
ifeq ($(TARGET_ARCH),x86)
|
||||
LINKER = linker
|
||||
NATIVE_SUFFIX=32
|
||||
else
|
||||
LINKER = linker64
|
||||
NATIVE_SUFFIX=64
|
||||
endif
|
||||
|
||||
bionic-benchmarks-run-on-host: bionic-benchmarks $(TARGET_OUT_EXECUTABLES)/$(LINKER) $(TARGET_OUT_EXECUTABLES)/sh
|
||||
if [ ! -d /system -o ! -d /system/bin ]; then \
|
||||
echo "Attempting to create /system/bin"; \
|
||||
sudo mkdir -p -m 0777 /system/bin; \
|
||||
fi
|
||||
mkdir -p $(TARGET_OUT_DATA)/local/tmp
|
||||
cp $(TARGET_OUT_EXECUTABLES)/$(LINKER) /system/bin
|
||||
cp $(TARGET_OUT_EXECUTABLES)/sh /system/bin
|
||||
ANDROID_DATA=$(TARGET_OUT_DATA) \
|
||||
ANDROID_ROOT=$(TARGET_OUT) \
|
||||
LD_LIBRARY_PATH=$(TARGET_OUT_SHARED_LIBRARIES) \
|
||||
$(TARGET_OUT_EXECUTABLES)/bionic-benchmarks$(NATIVE_SUFFIX) $(BIONIC_BENCHMARKS_FLAGS)
|
||||
endif # linux-x86
|
||||
|
||||
endif # !BUILD_TINY_ANDROID
|
||||
@@ -1,171 +0,0 @@
|
||||
/*
|
||||
* Copyright (C) 2013 The Android Open Source Project
|
||||
*
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
#include "benchmark.h"
|
||||
|
||||
#include <math.h>
|
||||
|
||||
// Avoid optimization.
|
||||
double d;
|
||||
double v;
|
||||
|
||||
static void BM_math_sqrt(int iters) {
|
||||
StartBenchmarkTiming();
|
||||
|
||||
d = 0.0;
|
||||
v = 2.0;
|
||||
for (int i = 0; i < iters; ++i) {
|
||||
d += sqrt(v);
|
||||
}
|
||||
|
||||
StopBenchmarkTiming();
|
||||
}
|
||||
BENCHMARK(BM_math_sqrt);
|
||||
|
||||
static void BM_math_log10(int iters) {
|
||||
StartBenchmarkTiming();
|
||||
|
||||
d = 0.0;
|
||||
v = 1234.0;
|
||||
for (int i = 0; i < iters; ++i) {
|
||||
d += log10(v);
|
||||
}
|
||||
|
||||
StopBenchmarkTiming();
|
||||
}
|
||||
BENCHMARK(BM_math_log10);
|
||||
|
||||
static void BM_math_logb(int iters) {
|
||||
StartBenchmarkTiming();
|
||||
|
||||
d = 0.0;
|
||||
v = 1234.0;
|
||||
for (int i = 0; i < iters; ++i) {
|
||||
d += logb(v);
|
||||
}
|
||||
|
||||
StopBenchmarkTiming();
|
||||
}
|
||||
BENCHMARK(BM_math_logb);
|
||||
|
||||
static void BM_math_isinf_NORMAL(int iters) {
|
||||
StartBenchmarkTiming();
|
||||
|
||||
d = 0.0;
|
||||
v = 1234.0; // FP_NORMAL
|
||||
for (int i = 0; i < iters; ++i) {
|
||||
d += (isinf)(v);
|
||||
}
|
||||
|
||||
StopBenchmarkTiming();
|
||||
}
|
||||
BENCHMARK(BM_math_isinf_NORMAL);
|
||||
|
||||
static void BM_math_isinf_NAN(int iters) {
|
||||
StartBenchmarkTiming();
|
||||
|
||||
d = 0.0;
|
||||
v = nan(""); // FP_NAN
|
||||
for (int i = 0; i < iters; ++i) {
|
||||
d += (isinf)(v);
|
||||
}
|
||||
|
||||
StopBenchmarkTiming();
|
||||
}
|
||||
BENCHMARK(BM_math_isinf_NAN);
|
||||
|
||||
static void BM_math_isinf_INFINITE(int iters) {
|
||||
StartBenchmarkTiming();
|
||||
|
||||
d = 0.0;
|
||||
v = HUGE_VAL; // FP_INFINITE
|
||||
for (int i = 0; i < iters; ++i) {
|
||||
d += (isinf)(v);
|
||||
}
|
||||
|
||||
StopBenchmarkTiming();
|
||||
}
|
||||
BENCHMARK(BM_math_isinf_INFINITE);
|
||||
|
||||
static void BM_math_isinf_ZERO(int iters) {
|
||||
StartBenchmarkTiming();
|
||||
|
||||
d = 0.0;
|
||||
v = 0.0; // FP_ZERO
|
||||
for (int i = 0; i < iters; ++i) {
|
||||
d += (isinf)(v);
|
||||
}
|
||||
|
||||
StopBenchmarkTiming();
|
||||
}
|
||||
BENCHMARK(BM_math_isinf_ZERO);
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
static void BM_math_fpclassify_NORMAL(int iters) {
|
||||
StartBenchmarkTiming();
|
||||
|
||||
d = 0.0;
|
||||
v = 1234.0; // FP_NORMAL
|
||||
for (int i = 0; i < iters; ++i) {
|
||||
d += fpclassify(v);
|
||||
}
|
||||
|
||||
StopBenchmarkTiming();
|
||||
}
|
||||
BENCHMARK(BM_math_fpclassify_NORMAL);
|
||||
|
||||
static void BM_math_fpclassify_NAN(int iters) {
|
||||
StartBenchmarkTiming();
|
||||
|
||||
d = 0.0;
|
||||
v = nan(""); // FP_NAN
|
||||
for (int i = 0; i < iters; ++i) {
|
||||
d += fpclassify(v);
|
||||
}
|
||||
|
||||
StopBenchmarkTiming();
|
||||
}
|
||||
BENCHMARK(BM_math_fpclassify_NAN);
|
||||
|
||||
static void BM_math_fpclassify_INFINITE(int iters) {
|
||||
StartBenchmarkTiming();
|
||||
|
||||
d = 0.0;
|
||||
v = HUGE_VAL; // FP_INFINITE
|
||||
for (int i = 0; i < iters; ++i) {
|
||||
d += fpclassify(v);
|
||||
}
|
||||
|
||||
StopBenchmarkTiming();
|
||||
}
|
||||
BENCHMARK(BM_math_fpclassify_INFINITE);
|
||||
|
||||
static void BM_math_fpclassify_ZERO(int iters) {
|
||||
StartBenchmarkTiming();
|
||||
|
||||
d = 0.0;
|
||||
v = 0.0; // FP_ZERO
|
||||
for (int i = 0; i < iters; ++i) {
|
||||
d += fpclassify(v);
|
||||
}
|
||||
|
||||
StopBenchmarkTiming();
|
||||
}
|
||||
BENCHMARK(BM_math_fpclassify_ZERO);
|
||||
@@ -1,104 +0,0 @@
|
||||
/*
|
||||
* Copyright (C) 2014 The Android Open Source Project
|
||||
*
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
#include "benchmark.h"
|
||||
|
||||
#include <pthread.h>
|
||||
|
||||
static void BM_pthread_self(int iters) {
|
||||
StartBenchmarkTiming();
|
||||
|
||||
for (int i = 0; i < iters; ++i) {
|
||||
pthread_self();
|
||||
}
|
||||
|
||||
StopBenchmarkTiming();
|
||||
}
|
||||
BENCHMARK(BM_pthread_self);
|
||||
|
||||
static void BM_pthread_getspecific(int iters) {
|
||||
StopBenchmarkTiming();
|
||||
pthread_key_t key;
|
||||
pthread_key_create(&key, NULL);
|
||||
StartBenchmarkTiming();
|
||||
|
||||
for (int i = 0; i < iters; ++i) {
|
||||
pthread_getspecific(key);
|
||||
}
|
||||
|
||||
StopBenchmarkTiming();
|
||||
pthread_key_delete(key);
|
||||
}
|
||||
BENCHMARK(BM_pthread_getspecific);
|
||||
|
||||
static void DummyPthreadOnceInitFunction() {
|
||||
}
|
||||
|
||||
static void BM_pthread_once(int iters) {
|
||||
StopBenchmarkTiming();
|
||||
pthread_once_t once = PTHREAD_ONCE_INIT;
|
||||
pthread_once(&once, DummyPthreadOnceInitFunction);
|
||||
StartBenchmarkTiming();
|
||||
|
||||
for (int i = 0; i < iters; ++i) {
|
||||
pthread_once(&once, DummyPthreadOnceInitFunction);
|
||||
}
|
||||
|
||||
StopBenchmarkTiming();
|
||||
}
|
||||
BENCHMARK(BM_pthread_once);
|
||||
|
||||
static void BM_pthread_mutex_lock(int iters) {
|
||||
StopBenchmarkTiming();
|
||||
pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
|
||||
StartBenchmarkTiming();
|
||||
|
||||
for (int i = 0; i < iters; ++i) {
|
||||
pthread_mutex_lock(&mutex);
|
||||
pthread_mutex_unlock(&mutex);
|
||||
}
|
||||
|
||||
StopBenchmarkTiming();
|
||||
}
|
||||
BENCHMARK(BM_pthread_mutex_lock);
|
||||
|
||||
static void BM_pthread_mutex_lock_ERRORCHECK(int iters) {
|
||||
StopBenchmarkTiming();
|
||||
pthread_mutex_t mutex = PTHREAD_ERRORCHECK_MUTEX_INITIALIZER;
|
||||
StartBenchmarkTiming();
|
||||
|
||||
for (int i = 0; i < iters; ++i) {
|
||||
pthread_mutex_lock(&mutex);
|
||||
pthread_mutex_unlock(&mutex);
|
||||
}
|
||||
|
||||
StopBenchmarkTiming();
|
||||
}
|
||||
BENCHMARK(BM_pthread_mutex_lock_ERRORCHECK);
|
||||
|
||||
static void BM_pthread_mutex_lock_RECURSIVE(int iters) {
|
||||
StopBenchmarkTiming();
|
||||
pthread_mutex_t mutex = PTHREAD_RECURSIVE_MUTEX_INITIALIZER;
|
||||
StartBenchmarkTiming();
|
||||
|
||||
for (int i = 0; i < iters; ++i) {
|
||||
pthread_mutex_lock(&mutex);
|
||||
pthread_mutex_unlock(&mutex);
|
||||
}
|
||||
|
||||
StopBenchmarkTiming();
|
||||
}
|
||||
BENCHMARK(BM_pthread_mutex_lock_RECURSIVE);
|
||||
@@ -1,49 +0,0 @@
|
||||
/*
|
||||
* Copyright (C) 2014 The Android Open Source Project
|
||||
*
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
#include "benchmark.h"
|
||||
|
||||
#include <semaphore.h>
|
||||
|
||||
static void BM_semaphore_sem_getvalue(int iters) {
|
||||
StopBenchmarkTiming();
|
||||
sem_t semaphore;
|
||||
sem_init(&semaphore, 1, 1);
|
||||
StartBenchmarkTiming();
|
||||
|
||||
for (int i = 0; i < iters; ++i) {
|
||||
int dummy;
|
||||
sem_getvalue(&semaphore, &dummy);
|
||||
}
|
||||
|
||||
StopBenchmarkTiming();
|
||||
}
|
||||
BENCHMARK(BM_semaphore_sem_getvalue);
|
||||
|
||||
static void BM_semaphore_sem_wait_sem_post(int iters) {
|
||||
StopBenchmarkTiming();
|
||||
sem_t semaphore;
|
||||
sem_init(&semaphore, 1, 1);
|
||||
StartBenchmarkTiming();
|
||||
|
||||
for (int i = 0; i < iters; ++i) {
|
||||
sem_wait(&semaphore);
|
||||
sem_post(&semaphore);
|
||||
}
|
||||
|
||||
StopBenchmarkTiming();
|
||||
}
|
||||
BENCHMARK(BM_semaphore_sem_wait_sem_post);
|
||||
@@ -1,61 +0,0 @@
|
||||
/*
|
||||
* Copyright (C) 2014 The Android Open Source Project
|
||||
*
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
#include "benchmark.h"
|
||||
|
||||
#include <stdio.h>
|
||||
|
||||
#define KB 1024
|
||||
#define MB 1024*KB
|
||||
|
||||
#define AT_COMMON_SIZES \
|
||||
Arg(1)->Arg(2)->Arg(3)->Arg(4)->Arg(8)->Arg(16)->Arg(32)->Arg(64)->Arg(512)-> \
|
||||
Arg(1*KB)->Arg(4*KB)->Arg(8*KB)->Arg(16*KB)->Arg(64*KB)
|
||||
|
||||
static void BM_stdio_fread(int iters, int chunk_size) {
|
||||
StopBenchmarkTiming();
|
||||
FILE* fp = fopen("/dev/zero", "rw");
|
||||
char* buf = new char[chunk_size];
|
||||
StartBenchmarkTiming();
|
||||
|
||||
for (int i = 0; i < iters; ++i) {
|
||||
fread(buf, chunk_size, 1, fp);
|
||||
}
|
||||
|
||||
StopBenchmarkTiming();
|
||||
SetBenchmarkBytesProcessed(int64_t(iters) * int64_t(chunk_size));
|
||||
delete[] buf;
|
||||
fclose(fp);
|
||||
}
|
||||
BENCHMARK(BM_stdio_fread)->AT_COMMON_SIZES;
|
||||
|
||||
|
||||
static void BM_stdio_fwrite(int iters, int chunk_size) {
|
||||
StopBenchmarkTiming();
|
||||
FILE* fp = fopen("/dev/zero", "rw");
|
||||
char* buf = new char[chunk_size];
|
||||
StartBenchmarkTiming();
|
||||
|
||||
for (int i = 0; i < iters; ++i) {
|
||||
fwrite(buf, chunk_size, 1, fp);
|
||||
}
|
||||
|
||||
StopBenchmarkTiming();
|
||||
SetBenchmarkBytesProcessed(int64_t(iters) * int64_t(chunk_size));
|
||||
delete[] buf;
|
||||
fclose(fp);
|
||||
}
|
||||
BENCHMARK(BM_stdio_fwrite)->AT_COMMON_SIZES;
|
||||
@@ -1,30 +0,0 @@
|
||||
/*
|
||||
* Copyright (C) 2014 The Android Open Source Project
|
||||
*
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
#include "benchmark.h"
|
||||
|
||||
#include <unistd.h>
|
||||
|
||||
static void BM_unistd_getpid(int iters) {
|
||||
StartBenchmarkTiming();
|
||||
|
||||
for (int i = 0; i < iters; ++i) {
|
||||
getpid();
|
||||
}
|
||||
|
||||
StopBenchmarkTiming();
|
||||
}
|
||||
BENCHMARK(BM_unistd_getpid);
|
||||
1256
libc/Android.mk
1256
libc/Android.mk
File diff suppressed because it is too large
Load Diff
26
libc/CAVEATS
Normal file
26
libc/CAVEATS
Normal file
@@ -0,0 +1,26 @@
|
||||
Bionic is a very small C library because we have decided to *not* implement various features
|
||||
of the POSIX standard. we only add functions on a as-needed basis, and there are a few things
|
||||
we wish we'll never put in there.
|
||||
|
||||
this file is here to document explicitely what we don't want to support in Bionic:
|
||||
|
||||
- C++ exceptions are not supported. on embedded systems, they lead to extremely larger and
|
||||
slower code for no good reason (even when so-called zero-cost exception schemes are
|
||||
implemented, they enforce very large numbers of registers spills to the stack, even
|
||||
in functions that do not throw an exception themselves).
|
||||
|
||||
- pthread cancellation is *not* supported. this seemingly simple "feature" is the source
|
||||
of much bloat and complexity in a C library. Besides, you'd better write correct
|
||||
multi-threaded code instead of relying on this stuff.
|
||||
|
||||
- pthread_once() doesn't support C++ exceptions thrown from the init function, or the init
|
||||
function doing a fork().
|
||||
|
||||
- locales and wide characters are not supported. we use ICU for all this i18n stuff, which
|
||||
is much better than the ill-designed related C libraries functions.
|
||||
|
||||
- at the moment, several user-account-related functions like getpwd are stubbed and return
|
||||
the values corresponding to root. this will be fixed when we'll be able to have distinct
|
||||
users on the Android filesystem. :-(
|
||||
|
||||
see bionic/stubs.c for the details
|
||||
1139
libc/NOTICE
1139
libc/NOTICE
File diff suppressed because it is too large
Load Diff
@@ -1,333 +1,326 @@
|
||||
# This file is used to automatically generate bionic's system call stubs.
|
||||
# This file is used to automatically generate bionic's the system calls stubs.
|
||||
#
|
||||
# Each non-blank, non-comment line has the following format:
|
||||
# Each non comment line has the following format:
|
||||
#
|
||||
# return_type func_name[|alias_list][:syscall_name[:socketcall_id]]([parameter_list]) arch_list
|
||||
# return_type func_name[:syscall_name[:call_id]]([parameter_list]) (1|-1|"stub")
|
||||
#
|
||||
# where:
|
||||
# arch_list ::= "all" | arch+
|
||||
# arch ::= "arm" | "arm64" | "mips" | "mips64" | "x86" | "x86_64"
|
||||
#
|
||||
# Note:
|
||||
# Note that:
|
||||
# - syscall_name corresponds to the name of the syscall, which may differ from
|
||||
# the exported function name (example: the exit syscall is implemented by the _exit()
|
||||
# function, which is not the same as the standard C exit() function which calls it)
|
||||
#
|
||||
# - alias_list is optional comma separated list of function aliases.
|
||||
#
|
||||
# - The call_id parameter, given that func_name and syscall_name have
|
||||
# The call_id parameter, given that func_name and syscall_name have
|
||||
# been provided, allows the user to specify dispatch style syscalls.
|
||||
# For example, socket() syscall on i386 actually becomes:
|
||||
# socketcall(__NR_socket, 1, *(rest of args on stack)).
|
||||
#
|
||||
# - Each parameter type is assumed to be stored in 32 bits.
|
||||
# - each parameter type is assumed to be stored on 32 bits, there is no plan to support
|
||||
# 64-bit architectures at the moment
|
||||
#
|
||||
# - the final field can be "1", meaning: generate a stub for each architecture,
|
||||
# taking the constants from the kernel header files.
|
||||
#
|
||||
# - the final field can be "stub" meaning: do not generate any stubs ---
|
||||
# in this case, a hand-written custom stub must be provided.
|
||||
# TODO: replace this with something like "custom" or "none", or remove
|
||||
# it entirely.
|
||||
#
|
||||
# - the final field can be a three-element list of 1s and -1 meaning:
|
||||
# this system call is only available on some of the architectures (1),
|
||||
# and no stub should be generated for those architectures marked with -1.
|
||||
# the order is arm,x86,mips.
|
||||
# TODO: replace this with something more readable like "-arm,-mips" (meaning x86 only).
|
||||
#
|
||||
# This file is processed by a python script named gensyscalls.py.
|
||||
#
|
||||
|
||||
int execve(const char*, char* const*, char* const*) all
|
||||
# process management
|
||||
void _exit:exit_group (int) 1
|
||||
void _exit_thread:exit (int) 1
|
||||
pid_t __fork:fork (void) 1
|
||||
pid_t _waitpid:waitpid (pid_t, int*, int, struct rusage*) -1,1,1
|
||||
int __waitid:waitid(int, pid_t, struct siginfo_t*, int,void*) 1
|
||||
pid_t wait4(pid_t pid, int *status, int options, struct rusage *rusage) 1
|
||||
|
||||
uid_t getuid:getuid32() arm,x86
|
||||
uid_t getuid:getuid() arm64,mips,mips64,x86_64
|
||||
gid_t getgid:getgid32() arm,x86
|
||||
gid_t getgid:getgid() arm64,mips,mips64,x86_64
|
||||
uid_t geteuid:geteuid32() arm,x86
|
||||
uid_t geteuid:geteuid() arm64,mips,mips64,x86_64
|
||||
gid_t getegid:getegid32() arm,x86
|
||||
gid_t getegid:getegid() arm64,mips,mips64,x86_64
|
||||
uid_t getresuid:getresuid32(uid_t* ruid, uid_t* euid, uid_t* suid) arm,x86
|
||||
uid_t getresuid:getresuid(uid_t* ruid, uid_t* euid, uid_t* suid) arm64,mips,mips64,x86_64
|
||||
gid_t getresgid:getresgid32(gid_t* rgid, gid_t* egid, gid_t* sgid) arm,x86
|
||||
gid_t getresgid:getresgid(gid_t* rgid, gid_t* egid, gid_t* sgid) arm64,mips,mips64,x86_64
|
||||
pid_t gettid() all
|
||||
ssize_t readahead(int, off64_t, size_t) all
|
||||
int getgroups:getgroups32(int, gid_t*) arm,x86
|
||||
int getgroups:getgroups(int, gid_t*) arm64,mips,mips64,x86_64
|
||||
pid_t getpgid(pid_t) all
|
||||
pid_t getppid() all
|
||||
pid_t getsid(pid_t) all
|
||||
pid_t setsid() all
|
||||
int setgid:setgid32(gid_t) arm,x86
|
||||
int setgid:setgid(gid_t) arm64,mips,mips64,x86_64
|
||||
int setuid:setuid32(uid_t) arm,x86
|
||||
int setuid:setuid(uid_t) arm64,mips,mips64,x86_64
|
||||
int setreuid:setreuid32(uid_t, uid_t) arm,x86
|
||||
int setreuid:setreuid(uid_t, uid_t) arm64,mips,mips64,x86_64
|
||||
int setresuid:setresuid32(uid_t, uid_t, uid_t) arm,x86
|
||||
int setresuid:setresuid(uid_t, uid_t, uid_t) arm64,mips,mips64,x86_64
|
||||
int setresgid:setresgid32(gid_t, gid_t, gid_t) arm,x86
|
||||
int setresgid:setresgid(gid_t, gid_t, gid_t) arm64,mips,mips64,x86_64
|
||||
void* __brk:brk(void*) all
|
||||
int kill(pid_t, int) all
|
||||
int tkill(pid_t tid, int sig) all
|
||||
int tgkill(pid_t tgid, pid_t tid, int sig) all
|
||||
int __ptrace:ptrace(int request, int pid, void* addr, void* data) all
|
||||
int __set_thread_area:set_thread_area(void* user_desc) mips,mips64,x86
|
||||
# NOTE: this system call is never called directly, but we list it there
|
||||
# to have __NR_clone properly defined.
|
||||
#
|
||||
pid_t __sys_clone:clone (int, void*, int*, void*, int*) 1
|
||||
|
||||
# <sys/resource.h>
|
||||
int getrusage(int, struct rusage*) all
|
||||
int __getpriority:getpriority(int, int) all
|
||||
int setpriority(int, int, int) all
|
||||
# On LP64, rlimit and rlimit64 are the same.
|
||||
# On 32-bit systems we use prlimit64 to implement the rlimit64 functions.
|
||||
int getrlimit:ugetrlimit(int, struct rlimit*) arm,x86
|
||||
int getrlimit(int, struct rlimit*) mips
|
||||
int getrlimit|getrlimit64(int, struct rlimit*) arm64,mips64,x86_64
|
||||
int setrlimit(int, const struct rlimit*) arm,mips,x86
|
||||
int setrlimit|setrlimit64(int, const struct rlimit*) arm64,mips64,x86_64
|
||||
int prlimit64|prlimit(pid_t, int, struct rlimit64*, const struct rlimit64*) arm64,mips64,x86_64
|
||||
int prlimit64(pid_t, int, struct rlimit64*, const struct rlimit64*) arm,mips,x86
|
||||
int execve (const char*, char* const*, char* const*) 1
|
||||
|
||||
int setgroups:setgroups32(int, const gid_t*) arm,x86
|
||||
int setgroups:setgroups(int, const gid_t*) arm64,mips,mips64,x86_64
|
||||
int setpgid(pid_t, pid_t) all
|
||||
pid_t vfork(void) arm
|
||||
int setregid:setregid32(gid_t, gid_t) arm,x86
|
||||
int setregid:setregid(gid_t, gid_t) arm64,mips,mips64,x86_64
|
||||
int chroot(const char*) all
|
||||
# IMPORTANT: Even though <sys/prctl.h> declares prctl(int, ...), the syscall stub must take 6 arguments
|
||||
int __setuid:setuid32 (uid_t) 1,1,-1
|
||||
int __setuid:setuid (uid_t) -1,-1,1
|
||||
uid_t getuid:getuid32 () 1,1,-1
|
||||
uid_t getuid:getuid () -1,-1,1
|
||||
gid_t getgid:getgid32 () 1,1,-1
|
||||
gid_t getgid:getgid () -1,-1,1
|
||||
uid_t geteuid:geteuid32 () 1,1,-1
|
||||
uid_t geteuid:geteuid () -1,-1,1
|
||||
gid_t getegid:getegid32 () 1,1,-1
|
||||
gid_t getegid:getegid () -1,-1,1
|
||||
uid_t getresuid:getresuid32 (uid_t *ruid, uid_t *euid, uid_t *suid) 1,1,-1
|
||||
uid_t getresuid:getresuid (uid_t *ruid, uid_t *euid, uid_t *suid) -1,-1,1
|
||||
gid_t getresgid:getresgid32 (gid_t *rgid, gid_t *egid, gid_t *sgid) 1,1,-1
|
||||
gid_t getresgid:getresgid (gid_t *rgid, gid_t *egid, gid_t *sgid) -1,-1,1
|
||||
pid_t gettid() 1
|
||||
ssize_t readahead(int, off64_t, size_t) 1
|
||||
int getgroups:getgroups32(int, gid_t *) 1,1,-1
|
||||
int getgroups:getgroups(int, gid_t *) -1,-1,1
|
||||
pid_t getpgid(pid_t) 1
|
||||
pid_t getppid() 1
|
||||
pid_t getsid(pid_t) 1
|
||||
pid_t setsid() 1
|
||||
int setgid:setgid32(gid_t) 1,1,-1
|
||||
int setgid:setgid(gid_t) -1,-1,1
|
||||
int seteuid:seteuid32(uid_t) stub
|
||||
int __setreuid:setreuid32(uid_t, uid_t) 1,1,-1
|
||||
int __setreuid:setreuid(uid_t, uid_t) -1,-1,1
|
||||
int __setresuid:setresuid32(uid_t, uid_t, uid_t) 1,1,-1
|
||||
int __setresuid:setresuid(uid_t, uid_t, uid_t) -1,-1,1
|
||||
int setresgid:setresgid32(gid_t, gid_t, gid_t) 1,1,-1
|
||||
int setresgid:setresgid(gid_t, gid_t, gid_t) -1,-1,1
|
||||
void* __brk:brk(void*) 1
|
||||
# see comments in arch-arm/bionic/kill.S to understand why we don't generate an ARM stub for kill/tkill
|
||||
int kill(pid_t, int) -1,1,1
|
||||
int tkill(pid_t tid, int sig) -1,1,1
|
||||
int tgkill(pid_t tgid, pid_t tid, int sig) -1,1,1
|
||||
int __ptrace:ptrace(int request, int pid, void* addr, void* data) 1
|
||||
int __set_thread_area:set_thread_area(void* user_desc) -1,1,1
|
||||
int __getpriority:getpriority(int, int) 1
|
||||
int setpriority(int, int, int) 1
|
||||
int setrlimit(int resource, const struct rlimit *rlp) 1
|
||||
int getrlimit:ugetrlimit(int resource, struct rlimit *rlp) 1,1,-1
|
||||
int getrlimit:getrlimit(int resource, struct rlimit *rlp) -1,-1,1
|
||||
int getrusage(int who, struct rusage* r_usage) 1
|
||||
int setgroups:setgroups32(int, const gid_t *) 1,1,-1
|
||||
int setgroups:setgroups(int, const gid_t *) -1,-1,1
|
||||
pid_t getpgrp(void) stub
|
||||
int setpgid(pid_t, pid_t) 1
|
||||
pid_t vfork(void) 1,-1,-1
|
||||
int setregid:setregid32(gid_t, gid_t) 1,1,-1
|
||||
int setregid:setregid(gid_t, gid_t) -1,-1,1
|
||||
int chroot(const char *) 1
|
||||
# IMPORTANT: Even though <sys/prctl.h> declares prctl(int,...), the syscall stub must take 6 arguments
|
||||
# to match the kernel implementation.
|
||||
int prctl(int option, unsigned int arg2, unsigned int arg3, unsigned int arg4, unsigned int arg5) all
|
||||
long __arch_prctl:arch_prctl(int, unsigned long) x86_64
|
||||
int capget(cap_user_header_t header, cap_user_data_t data) all
|
||||
int capset(cap_user_header_t header, const cap_user_data_t data) all
|
||||
int sigaltstack(const stack_t*, stack_t*) all
|
||||
int acct(const char* filepath) all
|
||||
int prctl(int option, unsigned int arg2, unsigned int arg3, unsigned int arg4, unsigned int arg5) 1
|
||||
int capget(cap_user_header_t header, cap_user_data_t data) 1
|
||||
int capset(cap_user_header_t header, const cap_user_data_t data) 1
|
||||
int sigaltstack(const stack_t*, stack_t*) 1
|
||||
int acct(const char* filepath) 1
|
||||
|
||||
# file descriptors
|
||||
ssize_t read(int, void*, size_t) all
|
||||
ssize_t write(int, const void*, size_t) all
|
||||
ssize_t pread64(int, void*, size_t, off64_t) arm,mips,x86
|
||||
ssize_t pread64|pread(int, void*, size_t, off_t) arm64,mips64,x86_64
|
||||
ssize_t pwrite64(int, void*, size_t, off64_t) arm,mips,x86
|
||||
ssize_t pwrite64|pwrite(int, void*, size_t, off_t) arm64,mips64,x86_64
|
||||
int close(int) all
|
||||
pid_t getpid() all
|
||||
int munmap(void*, size_t) all
|
||||
void* mremap(void*, size_t, size_t, unsigned long) all
|
||||
int msync(const void*, size_t, int) all
|
||||
int mprotect(const void*, size_t, int) all
|
||||
int madvise(const void*, size_t, int) all
|
||||
int mlock(const void* addr, size_t len) all
|
||||
int munlock(const void* addr, size_t len) all
|
||||
int mlockall(int flags) all
|
||||
int munlockall() all
|
||||
int mincore(void* start, size_t length, unsigned char* vec) all
|
||||
int __ioctl:ioctl(int, int, void*) all
|
||||
int readv(int, const struct iovec*, int) all
|
||||
int writev(int, const struct iovec*, int) all
|
||||
int __fcntl64:fcntl64(int, int, void*) arm,mips,x86
|
||||
int fcntl(int, int, void*) arm64,mips64,x86_64
|
||||
int flock(int, int) all
|
||||
int fchmod(int, mode_t) all
|
||||
int dup(int) all
|
||||
int pipe2(int*, int) all
|
||||
int dup3(int, int, int) all
|
||||
int fsync(int) all
|
||||
int fdatasync(int) all
|
||||
int fchown:fchown32(int, uid_t, gid_t) arm,x86
|
||||
int fchown:fchown(int, uid_t, gid_t) arm64,mips,mips64,x86_64
|
||||
void sync(void) all
|
||||
int fsetxattr(int, const char*, const void*, size_t, int) all
|
||||
ssize_t fgetxattr(int, const char*, void*, size_t) all
|
||||
ssize_t flistxattr(int, char*, size_t) all
|
||||
int fremovexattr(int, const char*) all
|
||||
|
||||
# mips64 doesn't have getdents64 until 3.10 kernels.
|
||||
# We need this special-case hack as long as we need to support mips64 on older kernels.
|
||||
# The currently-available Debian qemu image is on a 3.2 kernel.
|
||||
int getdents:getdents64(unsigned int, struct dirent*, unsigned int) arm,arm64,mips,x86,x86_64
|
||||
int __getdents64:getdents64(unsigned int, struct dirent*, unsigned int) mips64
|
||||
int __getdents:getdents(unsigned int, void*, unsigned int) mips64
|
||||
|
||||
int __openat:openat(int, const char*, int, mode_t) all
|
||||
int faccessat(int, const char*, int, int) all
|
||||
int fchmodat(int, const char*, mode_t, int) all
|
||||
int fchownat(int, const char*, uid_t, gid_t, int) all
|
||||
int fstatat64|fstatat:fstatat64(int, const char*, struct stat*, int) arm,mips,x86
|
||||
int fstatat64|fstatat:newfstatat(int, const char*, struct stat*, int) arm64,mips64,x86_64
|
||||
int linkat(int, const char*, int, const char*, int) all
|
||||
int mkdirat(int, const char*, mode_t) all
|
||||
int mknodat(int, const char*, mode_t, dev_t) all
|
||||
int readlinkat(int, const char*, char*, size_t) all
|
||||
int renameat(int, const char*, int, const char*) all
|
||||
int symlinkat(const char*, int, const char*) all
|
||||
int unlinkat(int, const char*, int) all
|
||||
int utimensat(int, const char*, const struct timespec times[2], int) all
|
||||
|
||||
# Paired off_t/off64_t system calls. On 64-bit systems,
|
||||
# sizeof(off_t) == sizeof(off64_t), so there we emit two symbols that are
|
||||
# aliases. On 32-bit systems, we have two different system calls.
|
||||
# That means that every system call in this section should take three lines.
|
||||
off_t lseek(int, off_t, int) arm,mips,x86
|
||||
int __llseek:_llseek(int, unsigned long, unsigned long, off64_t*, int) arm,mips,x86
|
||||
off_t lseek|lseek64(int, off_t, int) arm64,mips64,x86_64
|
||||
int ftruncate(int, off_t) arm,mips,x86
|
||||
int ftruncate64(int, off64_t) arm,mips,x86
|
||||
int ftruncate|ftruncate64(int, off_t) arm64,mips64,x86_64
|
||||
ssize_t sendfile(int out_fd, int in_fd, off_t* offset, size_t count) arm,mips,x86
|
||||
ssize_t sendfile64(int out_fd, int in_fd, off64_t* offset, size_t count) arm,mips,x86
|
||||
ssize_t sendfile|sendfile64(int out_fd, int in_fd, off_t* offset, size_t count) arm64,mips64,x86_64
|
||||
int truncate(const char*, off_t) arm,mips,x86
|
||||
int truncate64(const char*, off64_t) arm,mips,x86
|
||||
int truncate|truncate64(const char*, off_t) arm64,mips64,x86_64
|
||||
# (mmap only gets two lines because we only used the 64-bit variant on 32-bit systems.)
|
||||
void* __mmap2:mmap2(void*, size_t, int, int, int, long) arm,mips,x86
|
||||
void* mmap|mmap64(void*, size_t, int, int, int, off_t) arm64,mips64,x86_64
|
||||
# (fallocate only gets two lines because there is no 32-bit variant.)
|
||||
int fallocate64:fallocate(int, int, off64_t, off64_t) arm,mips,x86
|
||||
int fallocate|fallocate64(int, int, off_t, off_t) arm64,mips64,x86_64
|
||||
|
||||
int __fstatfs64:fstatfs64(int, size_t, struct statfs*) arm,mips,x86
|
||||
int fstatfs64|fstatfs:fstatfs(int, struct statfs*) arm64,mips64,x86_64
|
||||
int __statfs64:statfs64(const char*, size_t, struct statfs*) arm,mips,x86
|
||||
int statfs64|statfs:statfs(const char*, struct statfs*) arm64,mips64,x86_64
|
||||
|
||||
int fstat64|fstat:fstat64(int, struct stat*) arm,mips,x86
|
||||
int fstat64|fstat:fstat(int, struct stat*) arm64,mips64,x86_64
|
||||
ssize_t read (int, void*, size_t) 1
|
||||
ssize_t write (int, const void*, size_t) 1
|
||||
ssize_t pread64 (int, void *, size_t, off64_t) 1
|
||||
ssize_t pwrite64 (int, void *, size_t, off64_t) 1
|
||||
int __open:open (const char*, int, mode_t) 1
|
||||
int __openat:openat (int, const char*, int, mode_t) 1
|
||||
int close (int) 1
|
||||
int creat(const char*, mode_t) stub
|
||||
off_t lseek(int, off_t, int) 1
|
||||
int __llseek:_llseek (int, unsigned long, unsigned long, loff_t*, int) 1
|
||||
pid_t getpid () 1
|
||||
void * mmap(void *, size_t, int, int, int, long) stub
|
||||
void * __mmap2:mmap2(void*, size_t, int, int, int, long) 1
|
||||
int munmap(void *, size_t) 1
|
||||
void * mremap(void *, size_t, size_t, unsigned long) 1
|
||||
int msync(const void *, size_t, int) 1
|
||||
int mprotect(const void *, size_t, int) 1
|
||||
int madvise(const void *, size_t, int) 1
|
||||
int mlock(const void *addr, size_t len) 1
|
||||
int munlock(const void *addr, size_t len) 1
|
||||
int mlockall(int flags) 1
|
||||
int munlockall() 1
|
||||
int mincore(void* start, size_t length, unsigned char* vec) 1
|
||||
int __ioctl:ioctl(int, int, void *) 1
|
||||
int readv(int, const struct iovec *, int) 1
|
||||
int writev(int, const struct iovec *, int) 1
|
||||
int __fcntl:fcntl(int, int, void*) 1
|
||||
int flock(int, int) 1
|
||||
int fchmod(int, mode_t) 1
|
||||
int dup(int) 1
|
||||
int pipe(int *) 1,1,-1
|
||||
int pipe2(int *, int) 1
|
||||
int dup2(int, int) 1
|
||||
int select:_newselect(int, struct fd_set *, struct fd_set *, struct fd_set *, struct timeval *) 1
|
||||
int ftruncate(int, off_t) 1
|
||||
int ftruncate64(int, off64_t) 1
|
||||
int getdents:getdents64(unsigned int, struct dirent *, unsigned int) 1
|
||||
int fsync(int) 1
|
||||
int fdatasync(int) 1
|
||||
int fchown:fchown32(int, uid_t, gid_t) 1,1,-1
|
||||
int fchown:fchown(int, uid_t, gid_t) -1,-1,1
|
||||
void sync(void) 1
|
||||
int __fcntl64:fcntl64(int, int, void *) 1
|
||||
int __fstatfs64:fstatfs64(int, size_t, struct statfs *) 1
|
||||
ssize_t sendfile(int out_fd, int in_fd, off_t *offset, size_t count) 1
|
||||
int fstatat:fstatat64(int dirfd, const char *path, struct stat *buf, int flags) 1
|
||||
int mkdirat(int dirfd, const char *pathname, mode_t mode) 1
|
||||
int fchownat(int dirfd, const char *path, uid_t owner, gid_t group, int flags) 1
|
||||
int fchmodat(int dirfd, const char *path, mode_t mode, int flags) 1
|
||||
int renameat(int olddirfd, const char *oldpath, int newdirfd, const char *newpath) 1
|
||||
int fsetxattr(int, const char *, const void *, size_t, int) 1
|
||||
ssize_t fgetxattr(int, const char *, void *, size_t) 1
|
||||
ssize_t flistxattr(int, char *, size_t) 1
|
||||
int fremovexattr(int, const char *) 1
|
||||
|
||||
# file system
|
||||
int chdir(const char*) all
|
||||
int mount(const char*, const char*, const char*, unsigned long, const void*) all
|
||||
int umount2(const char*, int) all
|
||||
int __getcwd:getcwd(char* buf, size_t size) all
|
||||
int fchdir(int) all
|
||||
int setxattr(const char*, const char*, const void*, size_t, int) all
|
||||
int lsetxattr(const char*, const char*, const void*, size_t, int) all
|
||||
ssize_t getxattr(const char*, const char*, void*, size_t) all
|
||||
ssize_t lgetxattr(const char*, const char*, void*, size_t) all
|
||||
ssize_t listxattr(const char*, char*, size_t) all
|
||||
ssize_t llistxattr(const char*, char*, size_t) all
|
||||
int removexattr(const char*, const char*) all
|
||||
int lremovexattr(const char*, const char*) all
|
||||
int swapon(const char*, int) all
|
||||
int swapoff(const char*) all
|
||||
int link (const char*, const char*) 1
|
||||
int unlink (const char*) 1
|
||||
int unlinkat (int, const char *, int) 1
|
||||
int chdir (const char*) 1
|
||||
int mknod (const char*, mode_t, dev_t) 1
|
||||
int chmod (const char*,mode_t) 1
|
||||
int chown:chown32(const char *, uid_t, gid_t) 1,1,-1
|
||||
int chown:chown(const char *, uid_t, gid_t) -1,-1,1
|
||||
int lchown:lchown32 (const char*, uid_t, gid_t) 1,1,-1
|
||||
int lchown:lchown (const char*, uid_t, gid_t) -1,-1,1
|
||||
int mount (const char*, const char*, const char*, unsigned long, const void*) 1
|
||||
int umount(const char*) stub
|
||||
int umount2 (const char*, int) 1
|
||||
int fstat:fstat64(int, struct stat*) 1
|
||||
int stat:stat64(const char *, struct stat *) 1
|
||||
int lstat:lstat64(const char *, struct stat *) 1
|
||||
int mkdir(const char *, mode_t) 1
|
||||
int readlink(const char *, char *, size_t) 1
|
||||
int rmdir(const char *) 1
|
||||
int rename(const char *, const char *) 1
|
||||
int __getcwd:getcwd(char * buf, size_t size) 1
|
||||
int access(const char *, int) 1
|
||||
int faccessat(int, const char *, int, int) 1
|
||||
int symlink(const char *, const char *) 1
|
||||
int fchdir(int) 1
|
||||
int truncate(const char*, off_t) 1
|
||||
int setxattr(const char *, const char *, const void *, size_t, int) 1
|
||||
int lsetxattr(const char *, const char *, const void *, size_t, int) 1
|
||||
ssize_t getxattr(const char *, const char *, void *, size_t) 1
|
||||
ssize_t lgetxattr(const char *, const char *, void *, size_t) 1
|
||||
ssize_t listxattr(const char *, char *, size_t) 1
|
||||
ssize_t llistxattr(const char *, char *, size_t) 1
|
||||
int removexattr(const char *, const char *) 1
|
||||
int lremovexattr(const char *, const char *) 1
|
||||
int __statfs64:statfs64(const char *, size_t, struct statfs *) 1
|
||||
long unshare(unsigned long) 1
|
||||
int swapon(const char *, int) 1
|
||||
int swapoff(const char *) 1
|
||||
|
||||
# time
|
||||
int gettimeofday(struct timeval*, struct timezone*) all
|
||||
int settimeofday(const struct timeval*, const struct timezone*) all
|
||||
clock_t times(struct tms*) all
|
||||
int nanosleep(const struct timespec*, struct timespec*) all
|
||||
int clock_gettime(clockid_t clk_id, struct timespec* tp) all
|
||||
int clock_settime(clockid_t clk_id, const struct timespec* tp) all
|
||||
int clock_getres(clockid_t clk_id, struct timespec* res) all
|
||||
int clock_nanosleep(clockid_t clock_id, int flags, const struct timespec* req, struct timespec* rem) all
|
||||
int getitimer(int, const struct itimerval*) all
|
||||
int setitimer(int, const struct itimerval*, struct itimerval*) all
|
||||
int __timer_create:timer_create(clockid_t clockid, struct sigevent* evp, __kernel_timer_t* timerid) all
|
||||
int __timer_settime:timer_settime(__kernel_timer_t, int, const struct itimerspec*, struct itimerspec*) all
|
||||
int __timer_gettime:timer_gettime(__kernel_timer_t, struct itimerspec*) all
|
||||
int __timer_getoverrun:timer_getoverrun(__kernel_timer_t) all
|
||||
int __timer_delete:timer_delete(__kernel_timer_t) all
|
||||
int timerfd_create(clockid_t, int) all
|
||||
int timerfd_settime(int, int, const struct itimerspec*, struct itimerspec*) all
|
||||
int timerfd_gettime(int, struct itimerspec*) all
|
||||
int pause () 1
|
||||
int gettimeofday(struct timeval*, struct timezone*) 1
|
||||
int settimeofday(const struct timeval*, const struct timezone*) 1
|
||||
clock_t times(struct tms *) 1
|
||||
int nanosleep(const struct timespec *, struct timespec *) 1
|
||||
int clock_gettime(clockid_t clk_id, struct timespec *tp) 1
|
||||
int clock_settime(clockid_t clk_id, const struct timespec *tp) 1
|
||||
int clock_getres(clockid_t clk_id, struct timespec *res) 1
|
||||
int clock_nanosleep(clockid_t clock_id, int flags, const struct timespec *req, struct timespec *rem) 1
|
||||
int getitimer(int, const struct itimerval *) 1
|
||||
int setitimer(int, const struct itimerval *, struct itimerval *) 1
|
||||
int __timer_create:timer_create(clockid_t clockid, struct sigevent *evp, timer_t *timerid) 1
|
||||
int __timer_settime:timer_settime(timer_t, int, const struct itimerspec*, struct itimerspec*) 1
|
||||
int __timer_gettime:timer_gettime(timer_t, struct itimerspec*) 1
|
||||
int __timer_getoverrun:timer_getoverrun(timer_t) 1
|
||||
int __timer_delete:timer_delete(timer_t) 1
|
||||
int utimes(const char*, const struct timeval tvp[2]) 1
|
||||
int utimensat(int, const char *, const struct timespec times[2], int) 1
|
||||
int timerfd_create(clockid_t, int) 1
|
||||
int timerfd_settime(int, int, const struct itimerspec *, struct itimerspec *) 1
|
||||
int timerfd_gettime(int, struct itimerspec *) 1
|
||||
|
||||
# signals
|
||||
int __sigaction:sigaction(int, const struct sigaction*, struct sigaction*) arm,mips,x86
|
||||
int __rt_sigaction:rt_sigaction(int, const struct sigaction*, struct sigaction*, size_t) all
|
||||
int __rt_sigpending:rt_sigpending(sigset_t*, size_t) all
|
||||
int __rt_sigprocmask:rt_sigprocmask(int, const sigset_t*, sigset_t*, size_t) all
|
||||
int __rt_sigsuspend:rt_sigsuspend(const sigset_t*, size_t) all
|
||||
int __rt_sigtimedwait:rt_sigtimedwait(const sigset_t*, struct siginfo_t*, struct timespec_t*, size_t) all
|
||||
int signalfd4(int, const sigset_t*, size_t, int) all
|
||||
int sigaction(int, const struct sigaction *, struct sigaction *) 1
|
||||
int sigprocmask(int, const sigset_t *, sigset_t *) 1
|
||||
int __sigsuspend:sigsuspend(int unused1, int unused2, unsigned mask) 1,1,-1
|
||||
int __sigsuspend:sigsuspend(const sigset_t *mask) -1,-1,1
|
||||
int __rt_sigaction:rt_sigaction (int sig, const struct sigaction *act, struct sigaction *oact, size_t sigsetsize) 1
|
||||
int __rt_sigprocmask:rt_sigprocmask (int how, const sigset_t *set, sigset_t *oset, size_t sigsetsize) 1
|
||||
int __rt_sigtimedwait:rt_sigtimedwait(const sigset_t *set, struct siginfo_t *info, struct timespec_t *timeout, size_t sigset_size) 1
|
||||
int sigpending(sigset_t *) 1
|
||||
int signalfd4(int fd, const sigset_t *mask, size_t sizemask, int flags) 1
|
||||
|
||||
# sockets
|
||||
int socket(int, int, int) arm,arm64,mips,mips64,x86_64
|
||||
int socketpair(int, int, int, int*) arm,arm64,mips,mips64,x86_64
|
||||
int bind(int, struct sockaddr*, int) arm,arm64,mips,mips64,x86_64
|
||||
int connect(int, struct sockaddr*, socklen_t) arm,arm64,mips,mips64,x86_64
|
||||
int listen(int, int) arm,arm64,mips,mips64,x86_64
|
||||
int accept(int, struct sockaddr*, socklen_t*) arm,arm64,mips,mips64,x86_64
|
||||
int accept4(int, struct sockaddr*, socklen_t*, int) arm,arm64,mips,mips64,x86_64
|
||||
int getsockname(int, struct sockaddr*, socklen_t*) arm,arm64,mips,mips64,x86_64
|
||||
int getpeername(int, struct sockaddr*, socklen_t*) arm,arm64,mips,mips64,x86_64
|
||||
int sendto(int, const void*, size_t, int, const struct sockaddr*, socklen_t) arm,arm64,mips,mips64,x86_64
|
||||
int recvfrom(int, void*, size_t, unsigned int, struct sockaddr*, socklen_t*) arm,arm64,mips,mips64,x86_64
|
||||
int shutdown(int, int) arm,arm64,mips,mips64,x86_64
|
||||
int setsockopt(int, int, int, const void*, socklen_t) arm,arm64,mips,mips64,x86_64
|
||||
int getsockopt(int, int, int, void*, socklen_t*) arm,arm64,mips,mips64,x86_64
|
||||
int sendmsg(int, const struct msghdr*, unsigned int) arm,arm64,mips,mips64,x86_64
|
||||
int recvmsg(int, struct msghdr*, unsigned int) arm,arm64,mips,mips64,x86_64
|
||||
int recvmmsg(int, struct mmsghdr*, unsigned int, int, const struct timespec*) arm,arm64,mips,mips64,x86_64
|
||||
int sendmmsg(int, struct mmsghdr*, unsigned int, int) arm,arm64,mips,mips64,x86_64
|
||||
int socket(int, int, int) 1,-1,1
|
||||
int socketpair(int, int, int, int*) 1,-1,1
|
||||
int bind(int, struct sockaddr *, int) 1,-1,1
|
||||
int connect(int, struct sockaddr *, socklen_t) 1,-1,1
|
||||
int listen(int, int) 1,-1,1
|
||||
int accept(int, struct sockaddr *, socklen_t *) 1,-1,1
|
||||
int getsockname(int, struct sockaddr *, socklen_t *) 1,-1,1
|
||||
int getpeername(int, struct sockaddr *, socklen_t *) 1,-1,1
|
||||
int sendto(int, const void *, size_t, int, const struct sockaddr *, socklen_t) 1,-1,1
|
||||
int recvfrom(int, void *, size_t, unsigned int, struct sockaddr *, socklen_t *) 1,-1,1
|
||||
int shutdown(int, int) 1,-1,1
|
||||
int setsockopt(int, int, int, const void *, socklen_t) 1,-1,1
|
||||
int getsockopt(int, int, int, void *, socklen_t *) 1,-1,1
|
||||
int sendmsg(int, const struct msghdr *, unsigned int) 1,-1,1
|
||||
int recvmsg(int, struct msghdr *, unsigned int) 1,-1,1
|
||||
|
||||
# sockets for x86. These are done as an "indexed" call to socketcall syscall.
|
||||
int socket:socketcall:1(int, int, int) x86
|
||||
int bind:socketcall:2(int, struct sockaddr*, int) x86
|
||||
int connect:socketcall:3(int, struct sockaddr*, socklen_t) x86
|
||||
int listen:socketcall:4(int, int) x86
|
||||
int accept:socketcall:5(int, struct sockaddr*, socklen_t*) x86
|
||||
int getsockname:socketcall:6(int, struct sockaddr*, socklen_t*) x86
|
||||
int getpeername:socketcall:7(int, struct sockaddr*, socklen_t*) x86
|
||||
int socketpair:socketcall:8(int, int, int, int*) x86
|
||||
int sendto:socketcall:11(int, const void*, size_t, int, const struct sockaddr*, socklen_t) x86
|
||||
int recvfrom:socketcall:12(int, void*, size_t, unsigned int, struct sockaddr*, socklen_t*) x86
|
||||
int shutdown:socketcall:13(int, int) x86
|
||||
int setsockopt:socketcall:14(int, int, int, const void*, socklen_t) x86
|
||||
int getsockopt:socketcall:15(int, int, int, void*, socklen_t*) x86
|
||||
int sendmsg:socketcall:16(int, const struct msghdr*, unsigned int) x86
|
||||
int recvmsg:socketcall:17(int, struct msghdr*, unsigned int) x86
|
||||
int accept4:socketcall:18(int, struct sockaddr*, socklen_t*, int) x86
|
||||
int recvmmsg:socketcall:19(int, struct mmsghdr*, unsigned int, int, const struct timespec*) x86
|
||||
int sendmmsg:socketcall:20(int, struct mmsghdr*, unsigned int, int) x86
|
||||
int socket:socketcall:1 (int, int, int) -1,1,-1
|
||||
int bind:socketcall:2 (int, struct sockaddr *, int) -1,1,-1
|
||||
int connect:socketcall:3(int, struct sockaddr *, socklen_t) -1,1,-1
|
||||
int listen:socketcall:4(int, int) -1,1,-1
|
||||
int accept:socketcall:5(int, struct sockaddr *, socklen_t *) -1,1,-1
|
||||
int getsockname:socketcall:6(int, struct sockaddr *, socklen_t *) -1,1,-1
|
||||
int getpeername:socketcall:7(int, struct sockaddr *, socklen_t *) -1,1,-1
|
||||
int socketpair:socketcall:8(int, int, int, int*) -1,1,-1
|
||||
int sendto:socketcall:11(int, const void *, size_t, int, const struct sockaddr *, socklen_t) -1,1,-1
|
||||
int recvfrom:socketcall:12(int, void *, size_t, unsigned int, struct sockaddr *, socklen_t *) -1,1,-1
|
||||
int shutdown:socketcall:13(int, int) -1,1,-1
|
||||
int setsockopt:socketcall:14(int, int, int, const void *, socklen_t) -1,1,-1
|
||||
int getsockopt:socketcall:15(int, int, int, void *, socklen_t *) -1,1,-1
|
||||
int sendmsg:socketcall:16(int, const struct msghdr *, unsigned int) -1,1,-1
|
||||
int recvmsg:socketcall:17(int, struct msghdr *, unsigned int) -1,1,-1
|
||||
|
||||
# scheduler & real-time
|
||||
int sched_setscheduler(pid_t pid, int policy, const struct sched_param* param) all
|
||||
int sched_getscheduler(pid_t pid) all
|
||||
int sched_yield(void) all
|
||||
int sched_setparam(pid_t pid, const struct sched_param* param) all
|
||||
int sched_getparam(pid_t pid, struct sched_param* param) all
|
||||
int sched_get_priority_max(int policy) all
|
||||
int sched_get_priority_min(int policy) all
|
||||
int sched_rr_get_interval(pid_t pid, struct timespec* interval) all
|
||||
int sched_setaffinity(pid_t pid, size_t setsize, const cpu_set_t* set) all
|
||||
int setns(int, int) all
|
||||
int unshare(int) all
|
||||
int __sched_getaffinity:sched_getaffinity(pid_t pid, size_t setsize, cpu_set_t* set) all
|
||||
int __getcpu:getcpu(unsigned*, unsigned*, void*) all
|
||||
int sched_setscheduler(pid_t pid, int policy, const struct sched_param *param) 1
|
||||
int sched_getscheduler(pid_t pid) 1
|
||||
int sched_yield(void) 1
|
||||
int sched_setparam(pid_t pid, const struct sched_param *param) 1
|
||||
int sched_getparam(pid_t pid, struct sched_param *param) 1
|
||||
int sched_get_priority_max(int policy) 1
|
||||
int sched_get_priority_min(int policy) 1
|
||||
int sched_rr_get_interval(pid_t pid, struct timespec *interval) 1
|
||||
int sched_setaffinity(pid_t pid, size_t setsize, const cpu_set_t* set) 1
|
||||
int __sched_getaffinity:sched_getaffinity(pid_t pid, size_t setsize, cpu_set_t* set) 1
|
||||
int __getcpu:getcpu(unsigned *cpu, unsigned *node, void *unused) 1
|
||||
|
||||
# io priorities
|
||||
int ioprio_set(int which, int who, int ioprio) all
|
||||
int ioprio_get(int which, int who) all
|
||||
int ioprio_set(int which, int who, int ioprio) 1
|
||||
int ioprio_get(int which, int who) 1
|
||||
|
||||
# other
|
||||
int uname(struct utsname*) all
|
||||
mode_t umask(mode_t) all
|
||||
int __reboot:reboot(int, int, int, void*) all
|
||||
int __syslog:syslog(int, char*, int) all
|
||||
int init_module(void*, unsigned long, const char*) all
|
||||
int delete_module(const char*, unsigned int) all
|
||||
int klogctl:syslog(int, char*, int) all
|
||||
int sysinfo(struct sysinfo*) all
|
||||
int personality(unsigned long) all
|
||||
long perf_event_open(struct perf_event_attr* attr_uptr, pid_t pid, int cpu, int group_fd, unsigned long flags) all
|
||||
int uname(struct utsname *) 1
|
||||
mode_t umask(mode_t) 1
|
||||
int __reboot:reboot(int, int, int, void *) 1
|
||||
int __syslog:syslog(int, char *, int) 1
|
||||
int init_module(void *, unsigned long, const char *) 1
|
||||
int delete_module(const char*, unsigned int) 1
|
||||
int klogctl:syslog(int, char *, int) 1
|
||||
int sysinfo(struct sysinfo *) 1
|
||||
int personality(unsigned long) 1
|
||||
long perf_event_open(struct perf_event_attr *attr_uptr, pid_t pid, int cpu, int group_fd, unsigned long flags) 1
|
||||
|
||||
int epoll_create1(int) all
|
||||
int epoll_ctl(int, int op, int, struct epoll_event*) all
|
||||
int __epoll_pwait:epoll_pwait(int, struct epoll_event*, int, int, const sigset_t*, size_t) all
|
||||
# futex
|
||||
int futex(void *, int, int, void *, void *, int) 1
|
||||
|
||||
int eventfd:eventfd2(unsigned int, int) all
|
||||
# epoll
|
||||
int epoll_create(int size) 1
|
||||
int epoll_ctl(int epfd, int op, int fd, struct epoll_event *event) 1
|
||||
int epoll_wait(int epfd, struct epoll_event *events, int max, int timeout) 1
|
||||
|
||||
void _exit|_Exit:exit_group(int) all
|
||||
void __exit:exit(int) all
|
||||
int inotify_init(void) 1
|
||||
int inotify_add_watch(int, const char *, unsigned int) 1
|
||||
int inotify_rm_watch(int, unsigned int) 1
|
||||
|
||||
int futex(void*, int, int, void*, void*, int) all
|
||||
int poll(struct pollfd *, unsigned int, long) 1
|
||||
|
||||
int inotify_init1(int) all
|
||||
int inotify_add_watch(int, const char*, unsigned int) all
|
||||
int inotify_rm_watch(int, unsigned int) all
|
||||
int eventfd:eventfd2(unsigned int, int) 1
|
||||
|
||||
int __pselect6:pselect6(int, fd_set*, fd_set*, fd_set*, timespec*, void*) all
|
||||
int __ppoll:ppoll(pollfd*, unsigned int, timespec*, const sigset_t*, size_t) all
|
||||
|
||||
int __set_tid_address:set_tid_address(int*) all
|
||||
|
||||
pid_t wait4(pid_t, int*, int, struct rusage*) all
|
||||
int __waitid:waitid(int, pid_t, struct siginfo_t*, int, void*) all
|
||||
|
||||
# ARM-specific
|
||||
int __set_tls:__ARM_NR_set_tls(void*) arm
|
||||
int cacheflush:__ARM_NR_cacheflush(long start, long end, long flags) arm
|
||||
# ARM-specific ARM_NR_BASE == 0x0f0000 == 983040
|
||||
int __set_tls:__ARM_NR_set_tls(void*) 1,-1,-1
|
||||
int cacheflush:__ARM_NR_cacheflush(long start, long end, long flags) 1,-1,-1
|
||||
|
||||
# MIPS-specific
|
||||
int _flush_cache:cacheflush(char* addr, const int nbytes, const int op) mips,mips64
|
||||
int _flush_cache:cacheflush(char *addr, const int nbytes, const int op) -1,-1,1
|
||||
int syscall(int number,...) -1,-1,1
|
||||
|
||||
@@ -1,59 +1,13 @@
|
||||
# arm specific configs
|
||||
|
||||
# These are used by the 32-bit targets, but not the 64-bit ones.
|
||||
libc_common_src_files_arm := \
|
||||
bionic/legacy_32_bit_support.cpp \
|
||||
bionic/ndk_cruft.cpp \
|
||||
bionic/time64.c \
|
||||
|
||||
# These are shared by all the 32-bit targets, but not the 64-bit ones.
|
||||
libc_bionic_src_files_arm := \
|
||||
bionic/mmap.cpp
|
||||
|
||||
libc_common_src_files_arm += \
|
||||
bionic/index.cpp \
|
||||
bionic/memchr.c \
|
||||
bionic/memmove.c.arm \
|
||||
bionic/memrchr.c \
|
||||
bionic/strchr.cpp \
|
||||
bionic/strnlen.c \
|
||||
bionic/strrchr.cpp \
|
||||
upstream-freebsd/lib/libc/string/wcscat.c \
|
||||
upstream-freebsd/lib/libc/string/wcschr.c \
|
||||
upstream-freebsd/lib/libc/string/wcscmp.c \
|
||||
upstream-freebsd/lib/libc/string/wcscpy.c \
|
||||
upstream-freebsd/lib/libc/string/wcslen.c \
|
||||
upstream-freebsd/lib/libc/string/wcsrchr.c \
|
||||
upstream-freebsd/lib/libc/string/wmemcmp.c \
|
||||
upstream-openbsd/lib/libc/string/bcopy.c \
|
||||
upstream-openbsd/lib/libc/string/strlcat.c \
|
||||
upstream-openbsd/lib/libc/string/strlcpy.c \
|
||||
upstream-openbsd/lib/libc/string/strncat.c \
|
||||
upstream-openbsd/lib/libc/string/strncmp.c \
|
||||
upstream-openbsd/lib/libc/string/strncpy.c \
|
||||
|
||||
# The C++ fortify function implementations for which there is an
|
||||
# arm assembler version.
|
||||
#
|
||||
# Fortify implementations of libc functions.
|
||||
# libc_common_src_files_arm +=
|
||||
# bionic/__memcpy_chk.cpp \
|
||||
# bionic/__memset_chk.cpp \
|
||||
# bionic/__strcpy_chk.cpp \
|
||||
# bionic/__strcat_chk.cpp \
|
||||
|
||||
libc_common_cflags_arm := -DSOFTFLOAT
|
||||
|
||||
##########################################
|
||||
### CPU specific source files
|
||||
libc_bionic_src_files_arm += \
|
||||
_LIBC_ARCH_COMMON_SRC_FILES := \
|
||||
arch-arm/bionic/abort_arm.S \
|
||||
arch-arm/bionic/atomics_arm.c \
|
||||
arch-arm/bionic/__bionic_clone.S \
|
||||
arch-arm/bionic/clone.S \
|
||||
arch-arm/bionic/eabi.c \
|
||||
arch-arm/bionic/_exit_with_stack_teardown.S \
|
||||
arch-arm/bionic/ffs.S \
|
||||
arch-arm/bionic/futex_arm.S \
|
||||
arch-arm/bionic/__get_sp.S \
|
||||
arch-arm/bionic/kill.S \
|
||||
arch-arm/bionic/libgcc_compat.c \
|
||||
arch-arm/bionic/memcmp16.S \
|
||||
arch-arm/bionic/memcmp.S \
|
||||
@@ -61,32 +15,30 @@ libc_bionic_src_files_arm += \
|
||||
arch-arm/bionic/setjmp.S \
|
||||
arch-arm/bionic/sigsetjmp.S \
|
||||
arch-arm/bionic/syscall.S \
|
||||
arch-arm/bionic/tgkill.S \
|
||||
arch-arm/bionic/tkill.S \
|
||||
|
||||
libc_arch_static_src_files_arm := arch-arm/bionic/exidx_static.c
|
||||
libc_arch_dynamic_src_files_arm := arch-arm/bionic/exidx_dynamic.c
|
||||
# These are used by the static and dynamic versions of the libc
|
||||
# respectively.
|
||||
_LIBC_ARCH_STATIC_SRC_FILES := \
|
||||
arch-arm/bionic/exidx_static.c
|
||||
|
||||
## CPU variant specific source files
|
||||
ifeq ($(strip $(TARGET_$(my_2nd_arch_prefix)CPU_VARIANT)),)
|
||||
$(warning TARGET_$(my_2nd_arch_prefix)ARCH is arm, but TARGET_$(my_2nd_arch_prefix)CPU_VARIANT is not defined)
|
||||
_LIBC_ARCH_DYNAMIC_SRC_FILES := \
|
||||
arch-arm/bionic/exidx_dynamic.c
|
||||
|
||||
# Remove the C++ fortify function implementations for which there is an
|
||||
# arm assembler version.
|
||||
_LIBC_FORTIFY_FILES_TO_REMOVE := \
|
||||
bionic/__memcpy_chk.cpp \
|
||||
bionic/__memset_chk.cpp \
|
||||
bionic/__strcpy_chk.cpp \
|
||||
bionic/__strcat_chk.cpp \
|
||||
|
||||
libc_common_src_files := \
|
||||
$(filter-out $(_LIBC_FORTIFY_FILES_TO_REMOVE),$(libc_common_src_files))
|
||||
|
||||
ifeq ($(strip $(wildcard bionic/libc/arch-arm/$(TARGET_CPU_VARIANT)/$(TARGET_CPU_VARIANT).mk)),)
|
||||
$(error "TARGET_CPU_VARIANT not set or set to an unknown value. Possible values are cortex-a7, cortex-a8, cortex-a9, cortex-a15, krait. Use generic for devices that do not have a CPU similar to any of the supported cpu variants.")
|
||||
endif
|
||||
cpu_variant_mk := $(LOCAL_PATH)/arch-arm/$(TARGET_$(my_2nd_arch_prefix)CPU_VARIANT)/$(TARGET_$(my_2nd_arch_prefix)CPU_VARIANT).mk
|
||||
ifeq ($(wildcard $(cpu_variant_mk)),)
|
||||
$(error "TARGET_$(my_2nd_arch_prefix)CPU_VARIANT not set or set to an unknown value. Possible values are cortex-a7, cortex-a8, cortex-a9, cortex-a15, krait, denver. Use generic for devices that do not have a CPU similar to any of the supported cpu variants.")
|
||||
endif
|
||||
include $(cpu_variant_mk)
|
||||
libc_common_additional_dependencies += $(cpu_variant_mk)
|
||||
|
||||
cpu_variant_mk :=
|
||||
|
||||
|
||||
libc_crt_target_cflags_arm := \
|
||||
-I$(LOCAL_PATH)/arch-arm/include \
|
||||
-mthumb-interwork
|
||||
|
||||
libc_crt_target_so_cflags_arm :=
|
||||
|
||||
libc_crt_target_crtbegin_file_arm := \
|
||||
$(LOCAL_PATH)/arch-common/bionic/crtbegin.c
|
||||
|
||||
libc_crt_target_crtbegin_so_file_arm := \
|
||||
$(LOCAL_PATH)/arch-common/bionic/crtbegin_so.c
|
||||
include bionic/libc/arch-arm/$(TARGET_CPU_VARIANT)/$(TARGET_CPU_VARIANT).mk
|
||||
|
||||
@@ -1,73 +0,0 @@
|
||||
/*
|
||||
* Copyright (C) 2008-2010 The Android Open Source Project
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* * Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* * Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
||||
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <private/bionic_asm.h>
|
||||
|
||||
// pid_t __bionic_clone(int flags, void* child_stack, pid_t* parent_tid, void* tls, pid_t* child_tid, int (*fn)(void*), void* arg);
|
||||
ENTRY(__bionic_clone)
|
||||
mov ip, sp
|
||||
# save registers to parent stack
|
||||
stmfd sp!, {r4, r5, r6, r7}
|
||||
.cfi_def_cfa_offset 16
|
||||
.cfi_rel_offset r4, 0
|
||||
.cfi_rel_offset r5, 4
|
||||
.cfi_rel_offset r6, 8
|
||||
.cfi_rel_offset r7, 12
|
||||
|
||||
# load extra parameters
|
||||
ldmfd ip, {r4, r5, r6}
|
||||
|
||||
# store 'fn' and 'arg' to the child stack
|
||||
str r5, [r1, #-4]
|
||||
str r6, [r1, #-8]
|
||||
|
||||
# System call
|
||||
ldr r7, =__NR_clone
|
||||
swi #0
|
||||
movs r0, r0
|
||||
beq 1f
|
||||
|
||||
# In the parent, reload saved registers then either return or set errno.
|
||||
ldmfd sp!, {r4, r5, r6, r7}
|
||||
.cfi_def_cfa_offset 0
|
||||
cmn r0, #(MAX_ERRNO + 1)
|
||||
bxls lr
|
||||
neg r0, r0
|
||||
b __set_errno
|
||||
|
||||
1: # The child.
|
||||
# Re-add the unwind directives that were reset from above.
|
||||
.cfi_def_cfa_offset 16
|
||||
.cfi_rel_offset r4, 0
|
||||
.cfi_rel_offset r5, 4
|
||||
.cfi_rel_offset r6, 8
|
||||
.cfi_rel_offset r7, 12
|
||||
ldr r0, [sp, #-4]
|
||||
ldr r1, [sp, #-8]
|
||||
b __bionic_clone_entry
|
||||
END(__bionic_clone)
|
||||
@@ -26,7 +26,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <private/bionic_asm.h>
|
||||
#include <machine/asm.h>
|
||||
|
||||
ENTRY(__get_sp)
|
||||
mov r0, sp
|
||||
|
||||
@@ -26,16 +26,19 @@
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <private/bionic_asm.h>
|
||||
#include <machine/asm.h>
|
||||
#include <asm/unistd.h>
|
||||
|
||||
// void _exit_with_stack_teardown(void* stackBase, size_t stackSize)
|
||||
// void _exit_with_stack_teardown(void* stackBase, int stackSize, int retCode)
|
||||
ENTRY(_exit_with_stack_teardown)
|
||||
ldr r7, =__NR_munmap
|
||||
swi #0
|
||||
// If munmap failed, we ignore the failure and exit anyway.
|
||||
mov lr, r2
|
||||
ldr r7, =__NR_munmap
|
||||
swi #0 // the stack is destroyed by this call
|
||||
mov r0, lr
|
||||
ldr r7, =__NR_exit
|
||||
swi #0
|
||||
|
||||
mov r0, #0
|
||||
ldr r7, =__NR_exit
|
||||
swi #0
|
||||
// The exit syscall does not return.
|
||||
// exit() should never return, cause a crash if it does
|
||||
mov r0, #0
|
||||
ldr r0, [r0]
|
||||
END(_exit_with_stack_teardown)
|
||||
|
||||
@@ -34,7 +34,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <private/bionic_asm.h>
|
||||
#include <machine/asm.h>
|
||||
#include <machine/setjmp.h>
|
||||
#include <machine/cpu-features.h>
|
||||
|
||||
@@ -107,7 +107,7 @@ ENTRY(_longjmp)
|
||||
|
||||
/* validation failed, die die die. */
|
||||
botch:
|
||||
bl PIC_SYM(longjmperror, PLT)
|
||||
bl PIC_SYM(abort, PLT)
|
||||
bl PIC_SYM(_C_LABEL(longjmperror), PLT)
|
||||
bl PIC_SYM(_C_LABEL(abort), PLT)
|
||||
b . - 8 /* Cannot get here */
|
||||
END(_longjmp)
|
||||
|
||||
@@ -26,7 +26,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <private/bionic_asm.h>
|
||||
#include <machine/asm.h>
|
||||
|
||||
/*
|
||||
* Coding the abort function in assembly so that registers are guaranteed to
|
||||
@@ -36,9 +36,7 @@
|
||||
* sequence when the crash happens.
|
||||
*/
|
||||
ENTRY(abort)
|
||||
.save {r3, r14}
|
||||
stmfd sp!, {r3, r14}
|
||||
.cfi_def_cfa_offset 8
|
||||
.cfi_rel_offset r3, 0
|
||||
.cfi_rel_offset r14, 4
|
||||
bl PIC_SYM(__libc_android_abort, PLT)
|
||||
bl PIC_SYM(_C_LABEL(__libc_android_abort), PLT)
|
||||
END(abort)
|
||||
|
||||
35
libc/arch-arm/bionic/atexit.h
Normal file
35
libc/arch-arm/bionic/atexit.h
Normal file
@@ -0,0 +1,35 @@
|
||||
/*
|
||||
* Copyright (C) 2012 The Android Open Source Project
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* * Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* * Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
||||
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
extern void *__dso_handle;
|
||||
|
||||
__attribute__ ((visibility ("hidden")))
|
||||
int atexit(void (*func)(void))
|
||||
{
|
||||
return (__cxa_atexit((void (*)(void *))func, (void *)0, &__dso_handle));
|
||||
}
|
||||
@@ -1,5 +1,5 @@
|
||||
/*
|
||||
* Copyright (C) 2012 The Android Open Source Project
|
||||
* Copyright (c) 2012 The Android Open Source Project
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
@@ -27,10 +27,9 @@
|
||||
*/
|
||||
|
||||
#include <sys/types.h>
|
||||
#include <private/libc_logging.h>
|
||||
#include <stdio.h>
|
||||
|
||||
#include "private/libc_logging.h"
|
||||
|
||||
/*
|
||||
* This source file should only be included by libc.so, its purpose is
|
||||
* to support legacy ARM binaries by exporting a publicly visible
|
||||
|
||||
111
libc/arch-arm/bionic/clone.S
Normal file
111
libc/arch-arm/bionic/clone.S
Normal file
@@ -0,0 +1,111 @@
|
||||
/*
|
||||
* Copyright (C) 2008-2010 The Android Open Source Project
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* * Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* * Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
||||
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <linux/err.h>
|
||||
#include <machine/asm.h>
|
||||
#include <asm/unistd.h>
|
||||
|
||||
// int __pthread_clone(void* (*fn)(void*), void* child_stack, int flags, void* arg);
|
||||
ENTRY(__pthread_clone)
|
||||
# Push 'fn' and 'arg' onto 'child_stack'.
|
||||
stmdb r1!, {r0, r3}
|
||||
|
||||
# The sys_clone system call only takes two arguments: 'flags' and 'child_stack'.
|
||||
# 'child_stack' is already in r1, but we need to move 'flags' into position.
|
||||
mov r0, r2
|
||||
|
||||
# System call.
|
||||
mov ip, r7
|
||||
ldr r7, =__NR_clone
|
||||
swi #0
|
||||
|
||||
# Child?
|
||||
movs r0, r0
|
||||
beq 1f
|
||||
|
||||
# Parent.
|
||||
mov r7, ip
|
||||
cmn r0, #(MAX_ERRNO + 1)
|
||||
bxls lr
|
||||
neg r0, r0
|
||||
b __set_errno
|
||||
|
||||
1: # Child.
|
||||
# Pop 'fn' and 'arg' back off the stack and call __thread_entry.
|
||||
pop {r0, r1}
|
||||
# __thread_entry also needs our stack pointer.
|
||||
mov r2, sp
|
||||
b __thread_entry
|
||||
END(__pthread_clone)
|
||||
|
||||
|
||||
#
|
||||
# This function is defined as:
|
||||
#
|
||||
# pid_t __bionic_clone( int flags, void *child_stack,
|
||||
# pid_t *pid, void *tls, pid_t *ctid,
|
||||
# int (*fn)(void *), void* arg );
|
||||
#
|
||||
# NOTE: This is not the same signature as the glibc
|
||||
# __clone function. Placing 'fn' and 'arg'
|
||||
# at the end of the parameter list makes the
|
||||
# implementation much simpler.
|
||||
#
|
||||
|
||||
ENTRY(__bionic_clone)
|
||||
mov ip, sp
|
||||
.save {r4, r5, r6, r7}
|
||||
|
||||
# save registers to parent stack
|
||||
stmfd sp!, {r4, r5, r6, r7}
|
||||
|
||||
# load extra parameters
|
||||
ldmfd ip, {r4, r5, r6}
|
||||
|
||||
# store 'fn' and 'arg' to the child stack
|
||||
str r5, [r1, #-4]
|
||||
str r6, [r1, #-8]
|
||||
|
||||
# System call
|
||||
ldr r7, =__NR_clone
|
||||
swi #0
|
||||
movs r0, r0
|
||||
beq 1f
|
||||
|
||||
# In the parent, reload saved registers then either return or set errno.
|
||||
ldmfd sp!, {r4, r5, r6, r7}
|
||||
cmn r0, #(MAX_ERRNO + 1)
|
||||
bxls lr
|
||||
neg r0, r0
|
||||
b __set_errno
|
||||
|
||||
1: # The child.
|
||||
ldr r0, [sp, #-4]
|
||||
ldr r1, [sp, #-8]
|
||||
b __bionic_clone_entry
|
||||
END(__bionic_clone)
|
||||
53
libc/arch-arm/bionic/crtbegin.c
Normal file
53
libc/arch-arm/bionic/crtbegin.c
Normal file
@@ -0,0 +1,53 @@
|
||||
/*
|
||||
* Copyright (C) 2012 The Android Open Source Project
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* * Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* * Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
||||
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include "../../bionic/libc_init_common.h"
|
||||
#include <stddef.h>
|
||||
#include <stdint.h>
|
||||
|
||||
__attribute__ ((section (".preinit_array")))
|
||||
void (*__PREINIT_ARRAY__)(void) = (void (*)(void)) -1;
|
||||
|
||||
__attribute__ ((section (".init_array")))
|
||||
void (*__INIT_ARRAY__)(void) = (void (*)(void)) -1;
|
||||
|
||||
__attribute__ ((section (".fini_array")))
|
||||
void (*__FINI_ARRAY__)(void) = (void (*)(void)) -1;
|
||||
|
||||
__LIBC_HIDDEN__ void _start() {
|
||||
structors_array_t array;
|
||||
array.preinit_array = &__PREINIT_ARRAY__;
|
||||
array.init_array = &__INIT_ARRAY__;
|
||||
array.fini_array = &__FINI_ARRAY__;
|
||||
|
||||
void* raw_args = (void*) ((uintptr_t) __builtin_frame_address(0) + sizeof(void*));
|
||||
__libc_init(raw_args, NULL, &main, &array);
|
||||
}
|
||||
|
||||
#include "__dso_handle.h"
|
||||
#include "atexit.h"
|
||||
58
libc/arch-arm/bionic/crtbegin_so.c
Normal file
58
libc/arch-arm/bionic/crtbegin_so.c
Normal file
@@ -0,0 +1,58 @@
|
||||
/*
|
||||
* Copyright (C) 2012 The Android Open Source Project
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* * Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* * Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
||||
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
extern void __cxa_finalize(void *);
|
||||
extern void *__dso_handle;
|
||||
|
||||
__attribute__((visibility("hidden"),destructor))
|
||||
void __on_dlclose() {
|
||||
__cxa_finalize(&__dso_handle);
|
||||
}
|
||||
|
||||
/* CRT_LEGACY_WORKAROUND should only be defined when building
|
||||
* this file as part of the platform's C library.
|
||||
*
|
||||
* The C library already defines a function named 'atexit()'
|
||||
* for backwards compatibility with older NDK-generated binaries.
|
||||
*
|
||||
* For newer ones, 'atexit' is actually embedded in the C
|
||||
* runtime objects that are linked into the final ELF
|
||||
* binary (shared library or executable), and will call
|
||||
* __cxa_atexit() in order to un-register any atexit()
|
||||
* handler when a library is unloaded.
|
||||
*
|
||||
* This function must be global *and* hidden. Only the
|
||||
* code inside the same ELF binary should be able to access it.
|
||||
*/
|
||||
|
||||
#ifdef CRT_LEGACY_WORKAROUND
|
||||
#include "__dso_handle.h"
|
||||
#else
|
||||
#include "__dso_handle_so.h"
|
||||
#include "atexit.h"
|
||||
#endif
|
||||
40
libc/arch-arm/bionic/crtend.S
Normal file
40
libc/arch-arm/bionic/crtend.S
Normal file
@@ -0,0 +1,40 @@
|
||||
/*
|
||||
* Copyright (C) 2008 The Android Open Source Project
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* * Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* * Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
||||
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
.section .preinit_array, "aw"
|
||||
.long 0
|
||||
|
||||
.section .init_array, "aw"
|
||||
.long 0
|
||||
|
||||
.section .fini_array, "aw"
|
||||
.long 0
|
||||
|
||||
#if defined(__linux__) && defined(__ELF__)
|
||||
.section .note.GNU-stack,"",%progbits
|
||||
#endif
|
||||
31
libc/arch-arm/bionic/crtend_so.S
Normal file
31
libc/arch-arm/bionic/crtend_so.S
Normal file
@@ -0,0 +1,31 @@
|
||||
/*
|
||||
* Copyright (C) 2010 The Android Open Source Project
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* * Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* * Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
||||
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#if defined(__linux__) && defined(__ELF__)
|
||||
.section .note.GNU-stack,"",%progbits
|
||||
#endif
|
||||
@@ -32,7 +32,7 @@ extern int __cxa_atexit(void (*)(void*), void*, void* );
|
||||
|
||||
/* The "C++ ABI for ARM" document states that static C++ constructors,
|
||||
* which are called from the .init_array, should manually call
|
||||
* __aeabi_atexit() to register static destructors explicitly.
|
||||
* __aeabi_atexit() to register static destructors explicitely.
|
||||
*
|
||||
* Note that 'dso_handle' is the address of a magic linker-generate
|
||||
* variable from the shared object that contains the constructor/destructor
|
||||
|
||||
41
libc/arch-arm/bionic/ffs.S
Normal file
41
libc/arch-arm/bionic/ffs.S
Normal file
@@ -0,0 +1,41 @@
|
||||
/* $NetBSD: ffs.S,v 1.5 2003/04/05 23:08:52 bjh21 Exp $ */
|
||||
/*
|
||||
* Copyright (c) 2001 Christopher Gilbert
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. The name of the company nor the name of the author may be used to
|
||||
* endorse or promote products derived from this software without specific
|
||||
* prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
|
||||
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
||||
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
||||
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <machine/asm.h>
|
||||
#include <machine/cpu-features.h>
|
||||
|
||||
ENTRY(ffs)
|
||||
/* Standard trick to isolate bottom bit in r0 or 0 if r0 = 0 on entry */
|
||||
rsb r1, r0, #0
|
||||
ands r0, r0, r1
|
||||
clzne r0, r0
|
||||
rsbne r0, r0, #32
|
||||
bx lr
|
||||
END(ffs)
|
||||
@@ -26,12 +26,13 @@
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <private/bionic_asm.h>
|
||||
#include <asm/unistd.h>
|
||||
#include <machine/asm.h>
|
||||
|
||||
#define FUTEX_WAIT 0
|
||||
#define FUTEX_WAKE 1
|
||||
|
||||
// int __futex_syscall3(volatile void* ftx, int op, int count)
|
||||
// __futex_syscall3(*ftx, op, val)
|
||||
ENTRY(__futex_syscall3)
|
||||
mov ip, r7
|
||||
ldr r7, =__NR_futex
|
||||
@@ -40,12 +41,12 @@ ENTRY(__futex_syscall3)
|
||||
bx lr
|
||||
END(__futex_syscall3)
|
||||
|
||||
// int __futex_syscall4(volatile void* ftx, int op, int val, const struct timespec* timeout)
|
||||
// __futex_syscall4(*ftx, op, val, *timespec)
|
||||
ENTRY(__futex_syscall4)
|
||||
b __futex_syscall3
|
||||
END(__futex_syscall4)
|
||||
|
||||
// int __futex_wait(volatile void* ftx, int val, const struct timespec* timeout)
|
||||
// __futex_wait(*ftx, val, *timespec)
|
||||
ENTRY(__futex_wait)
|
||||
mov ip, r7
|
||||
mov r3, r2
|
||||
@@ -57,7 +58,7 @@ ENTRY(__futex_wait)
|
||||
bx lr
|
||||
END(__futex_wait)
|
||||
|
||||
// int __futex_wake(volatile void* ftx, int count)
|
||||
// __futex_wake(*ftx, counter)
|
||||
ENTRY(__futex_wake)
|
||||
mov ip, r7
|
||||
mov r2, r1
|
||||
|
||||
50
libc/arch-arm/bionic/kill.S
Normal file
50
libc/arch-arm/bionic/kill.S
Normal file
@@ -0,0 +1,50 @@
|
||||
/*
|
||||
* Copyright (C) 2008 The Android Open Source Project
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* * Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* * Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
||||
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <linux/err.h>
|
||||
#include <asm/unistd.h>
|
||||
#include <machine/asm.h>
|
||||
|
||||
/* unlike our auto-generated syscall stubs, this code saves lr
|
||||
on the stack, as well as a few other registers. this makes
|
||||
our stack unwinder happy, when we generate debug stack
|
||||
traces after the C library or other parts of the system
|
||||
abort due to a fatal runtime error (e.g. detection
|
||||
of a corrupted malloc heap).
|
||||
*/
|
||||
|
||||
ENTRY(kill)
|
||||
stmfd sp!, {r4-r7, ip, lr}
|
||||
ldr r7, =__NR_kill
|
||||
swi #0
|
||||
ldmfd sp!, {r4-r7, ip, lr}
|
||||
cmn r0, #(MAX_ERRNO + 1)
|
||||
bxls lr
|
||||
neg r0, r0
|
||||
b __set_errno
|
||||
END(kill)
|
||||
@@ -1,159 +1,170 @@
|
||||
/* Generated by genlibgcc_compat.py */
|
||||
/*
|
||||
* Copyright (C) 2008 The Android Open Source Project
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* * Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* * Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
||||
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
extern char __adddf3;
|
||||
extern char __addsf3;
|
||||
extern char __aeabi_cdcmpeq;
|
||||
extern char __aeabi_cdcmple;
|
||||
extern char __aeabi_cdrcmple;
|
||||
extern char __aeabi_d2f;
|
||||
extern char __aeabi_d2iz;
|
||||
extern char __aeabi_dadd;
|
||||
extern char __aeabi_dcmpeq;
|
||||
extern char __aeabi_dcmpge;
|
||||
extern char __aeabi_dcmpgt;
|
||||
extern char __aeabi_dcmple;
|
||||
extern char __aeabi_dcmplt;
|
||||
extern char __aeabi_dcmpun;
|
||||
extern char __aeabi_ddiv;
|
||||
extern char __aeabi_dmul;
|
||||
extern char __aeabi_drsub;
|
||||
extern char __aeabi_dsub;
|
||||
extern char __aeabi_f2d;
|
||||
extern char __aeabi_f2iz;
|
||||
extern char __aeabi_f2uiz;
|
||||
extern char __aeabi_fadd;
|
||||
extern char __aeabi_fcmpun;
|
||||
extern char __aeabi_fdiv;
|
||||
extern char __aeabi_fmul;
|
||||
extern char __aeabi_frsub;
|
||||
extern char __aeabi_fsub;
|
||||
extern char __aeabi_i2d;
|
||||
extern char __aeabi_i2f;
|
||||
extern char __aeabi_idiv;
|
||||
extern char __aeabi_idivmod;
|
||||
extern char __aeabi_l2d;
|
||||
extern char __aeabi_l2f;
|
||||
extern char __aeabi_lasr;
|
||||
extern char __aeabi_ldivmod;
|
||||
extern char __aeabi_llsl;
|
||||
extern char __aeabi_llsr;
|
||||
extern char __aeabi_lmul;
|
||||
extern char __aeabi_ui2d;
|
||||
extern char __aeabi_ui2f;
|
||||
extern char __aeabi_uidiv;
|
||||
extern char __aeabi_uidivmod;
|
||||
extern char __aeabi_ul2d;
|
||||
extern char __aeabi_ul2f;
|
||||
extern char __aeabi_uldivmod;
|
||||
extern char __aeabi_unwind_cpp_pr0;
|
||||
extern char __aeabi_unwind_cpp_pr1;
|
||||
extern char __cmpdf2;
|
||||
extern char __divdf3;
|
||||
extern char __divsf3;
|
||||
extern char __eqdf2;
|
||||
extern char __extendsfdf2;
|
||||
extern char __fixdfsi;
|
||||
extern char __fixsfsi;
|
||||
extern char __floatdidf;
|
||||
extern char __floatdisf;
|
||||
extern char __floatsidf;
|
||||
extern char __floatsisf;
|
||||
extern char __floatundidf;
|
||||
extern char __floatundisf;
|
||||
extern char __floatunsidf;
|
||||
extern char __floatunsisf;
|
||||
extern char __gedf2;
|
||||
extern char __gtdf2;
|
||||
extern char __ledf2;
|
||||
extern char __ltdf2;
|
||||
extern char __muldf3;
|
||||
extern char __muldi3;
|
||||
extern char __mulsf3;
|
||||
extern char __nedf2;
|
||||
extern char __popcount_tab;
|
||||
extern char __popcountsi2;
|
||||
extern char __subdf3;
|
||||
extern char __subsf3;
|
||||
extern char __truncdfsf2;
|
||||
extern char __unorddf2;
|
||||
extern char __unordsf2;
|
||||
/* This file contains dummy references to libgcc.a functions to force the
|
||||
* dynamic linker to copy their definition into the final libc.so binary.
|
||||
*
|
||||
* They are required to ensure backwards binary compatibility with
|
||||
* libc.so provided by the platform and binaries built with the NDK or
|
||||
* different versions/configurations of toolchains.
|
||||
*
|
||||
* Now, for a more elaborate description of the issue:
|
||||
*
|
||||
* libgcc.a is a compiler-specific library containing various helper
|
||||
* functions used to implement certain operations that are not necessarily
|
||||
* supported by the target CPU. For example, integer division doesn't have a
|
||||
* corresponding CPU instruction on ARMv5, and is instead implemented in the
|
||||
* compiler-generated machine code as a call to an __idiv helper function.
|
||||
*
|
||||
* Normally, one has to place libgcc.a in the link command used to generate
|
||||
* target binaries (shared libraries and executables) after all objects and
|
||||
* static libraries, but before dependent shared libraries, i.e. something
|
||||
* like:
|
||||
* gcc <options> -o libfoo.so foo.a libgcc.a -lc -lm
|
||||
*
|
||||
* This ensures that any helper function needed by the code in foo.a is copied
|
||||
* into the final libfoo.so. However, doing so will link a bunch of other __cxa
|
||||
* functions from libgcc.a into each .so and executable, causing 4k+ increase
|
||||
* in every binary. Therefore the Android platform build system has been
|
||||
* using this instead:
|
||||
*
|
||||
* gcc <options> -o libfoo.so foo.a -lc -lm libgcc.a
|
||||
*
|
||||
* The problem with this is that if one helper function needed by foo.a has
|
||||
* already been copied into libc.so or libm.so, then nothing will be copied
|
||||
* into libfoo.so. Instead, a symbol import definition will be added to it
|
||||
* so libfoo.so can directly call the one in libc.so at runtime.
|
||||
*
|
||||
* When refreshing toolchains for new versions or using different architecture
|
||||
* flags, the set of helper functions copied to libc.so may change, which
|
||||
* resulted in some native shared libraries generated with the NDK or prebuilts
|
||||
* from vendors to fail to load properly.
|
||||
*
|
||||
* The NDK has been fixed after 1.6_r1 to use the correct link command, so
|
||||
* any native shared library generated with it should now be safe from that
|
||||
* problem. On the other hand, existing shared libraries distributed with
|
||||
* applications that were generated with a previous version of the NDK
|
||||
* still need all 1.5/1.6 helper functions in libc.so and libm.so
|
||||
*
|
||||
* After 3.2, the toolchain was updated again, adding __aeabi_f2uiz to the
|
||||
* list of requirements. Technically, this is due to mis-linked NDK libraries
|
||||
* but it is easier to add a single function here than asking several app
|
||||
* developers to fix their build.
|
||||
*
|
||||
* The __aeabi_idiv function is added to the list since cortex-a15 supports
|
||||
* HW idiv instructions so the system libc.so doesn't pull in the reference to
|
||||
* __aeabi_idiv but legacy libraries built against cortex-a9 targets still need
|
||||
* it.
|
||||
*
|
||||
* Final note: some of the functions below should really be in libm.so to
|
||||
* completely reflect the state of 1.5/1.6 system images. However,
|
||||
* since libm.so depends on libc.so, it's easier to put all of
|
||||
* these in libc.so instead, since the dynamic linker will always
|
||||
* search in libc.so before libm.so for dependencies.
|
||||
*/
|
||||
|
||||
void* __bionic_libgcc_compat_symbols[] = {
|
||||
&__adddf3,
|
||||
&__addsf3,
|
||||
&__aeabi_cdcmpeq,
|
||||
&__aeabi_cdcmple,
|
||||
&__aeabi_cdrcmple,
|
||||
&__aeabi_d2f,
|
||||
&__aeabi_d2iz,
|
||||
&__aeabi_dadd,
|
||||
&__aeabi_dcmpeq,
|
||||
&__aeabi_dcmpge,
|
||||
&__aeabi_dcmpgt,
|
||||
&__aeabi_dcmple,
|
||||
&__aeabi_dcmplt,
|
||||
&__aeabi_dcmpun,
|
||||
&__aeabi_ddiv,
|
||||
&__aeabi_dmul,
|
||||
&__aeabi_drsub,
|
||||
&__aeabi_dsub,
|
||||
&__aeabi_f2d,
|
||||
&__aeabi_f2iz,
|
||||
&__aeabi_f2uiz,
|
||||
&__aeabi_fadd,
|
||||
&__aeabi_fcmpun,
|
||||
&__aeabi_fdiv,
|
||||
&__aeabi_fmul,
|
||||
&__aeabi_frsub,
|
||||
&__aeabi_fsub,
|
||||
&__aeabi_i2d,
|
||||
&__aeabi_i2f,
|
||||
&__aeabi_idiv,
|
||||
&__aeabi_idivmod,
|
||||
&__aeabi_l2d,
|
||||
&__aeabi_l2f,
|
||||
&__aeabi_lasr,
|
||||
&__aeabi_ldivmod,
|
||||
&__aeabi_llsl,
|
||||
&__aeabi_llsr,
|
||||
&__aeabi_lmul,
|
||||
&__aeabi_ui2d,
|
||||
&__aeabi_ui2f,
|
||||
&__aeabi_uidiv,
|
||||
&__aeabi_uidivmod,
|
||||
&__aeabi_ul2d,
|
||||
&__aeabi_ul2f,
|
||||
&__aeabi_uldivmod,
|
||||
&__aeabi_unwind_cpp_pr0,
|
||||
&__aeabi_unwind_cpp_pr1,
|
||||
&__cmpdf2,
|
||||
&__divdf3,
|
||||
&__divsf3,
|
||||
&__eqdf2,
|
||||
&__extendsfdf2,
|
||||
&__fixdfsi,
|
||||
&__fixsfsi,
|
||||
&__floatdidf,
|
||||
&__floatdisf,
|
||||
&__floatsidf,
|
||||
&__floatsisf,
|
||||
&__floatundidf,
|
||||
&__floatundisf,
|
||||
&__floatunsidf,
|
||||
&__floatunsisf,
|
||||
&__gedf2,
|
||||
&__gtdf2,
|
||||
&__ledf2,
|
||||
&__ltdf2,
|
||||
&__muldf3,
|
||||
&__muldi3,
|
||||
&__mulsf3,
|
||||
&__nedf2,
|
||||
&__popcount_tab,
|
||||
&__popcountsi2,
|
||||
&__subdf3,
|
||||
&__subsf3,
|
||||
&__truncdfsf2,
|
||||
&__unorddf2,
|
||||
&__unordsf2,
|
||||
};
|
||||
#define COMPAT_FUNCTIONS_LIST \
|
||||
XX(__adddf3) \
|
||||
XX(__addsf3) \
|
||||
XX(__aeabi_cdcmpeq) \
|
||||
XX(__aeabi_cdcmple) \
|
||||
XX(__aeabi_cdrcmple) \
|
||||
XX(__aeabi_d2f) \
|
||||
XX(__aeabi_d2iz) \
|
||||
XX(__aeabi_dadd) \
|
||||
XX(__aeabi_dcmpeq) \
|
||||
XX(__aeabi_dcmpge) \
|
||||
XX(__aeabi_dcmpgt) \
|
||||
XX(__aeabi_dcmple) \
|
||||
XX(__aeabi_dcmplt) \
|
||||
XX(__aeabi_dcmpun) \
|
||||
XX(__aeabi_ddiv) \
|
||||
XX(__aeabi_dmul) \
|
||||
XX(__aeabi_drsub) \
|
||||
XX(__aeabi_dsub) \
|
||||
XX(__aeabi_f2d) \
|
||||
XX(__aeabi_f2iz) \
|
||||
XX(__aeabi_f2uiz) \
|
||||
XX(__aeabi_fadd) \
|
||||
XX(__aeabi_fcmpun) \
|
||||
XX(__aeabi_fdiv) \
|
||||
XX(__aeabi_fmul) \
|
||||
XX(__aeabi_frsub) \
|
||||
XX(__aeabi_fsub) \
|
||||
XX(__aeabi_i2d) \
|
||||
XX(__aeabi_i2f) \
|
||||
XX(__aeabi_idiv) \
|
||||
XX(__aeabi_l2d) \
|
||||
XX(__aeabi_l2f) \
|
||||
XX(__aeabi_lasr) \
|
||||
XX(__aeabi_lmul) \
|
||||
XX(__aeabi_llsl) \
|
||||
XX(__aeabi_llsr) \
|
||||
XX(__aeabi_ui2d) \
|
||||
XX(__aeabi_ui2f) \
|
||||
XX(__aeabi_ul2d) \
|
||||
XX(__aeabi_ul2f) \
|
||||
XX(__cmpdf2) \
|
||||
XX(__divdf3) \
|
||||
XX(__divsf3) \
|
||||
XX(__eqdf2) \
|
||||
XX(__extendsfdf2) \
|
||||
XX(__fixdfsi) \
|
||||
XX(__fixsfsi) \
|
||||
XX(__floatdidf) \
|
||||
XX(__floatdisf) \
|
||||
XX(__floatsidf) \
|
||||
XX(__floatsisf) \
|
||||
XX(__floatundidf) \
|
||||
XX(__floatundisf) \
|
||||
XX(__floatunsidf) \
|
||||
XX(__floatunsisf) \
|
||||
XX(__gedf2) \
|
||||
XX(__gtdf2) \
|
||||
XX(__ledf2) \
|
||||
XX(__ltdf2) \
|
||||
XX(__muldf3) \
|
||||
XX(__muldi3) \
|
||||
XX(__mulsf3) \
|
||||
XX(__nedf2) \
|
||||
XX(__subdf3) \
|
||||
XX(__subsf3) \
|
||||
XX(__truncdfsf2) \
|
||||
XX(__unorddf2) \
|
||||
XX(__unordsf2) \
|
||||
|
||||
#define XX(f) extern void f(void);
|
||||
COMPAT_FUNCTIONS_LIST
|
||||
#undef XX
|
||||
|
||||
void __bionic_libgcc_compat_hooks(void)
|
||||
{
|
||||
#define XX(f) f();
|
||||
COMPAT_FUNCTIONS_LIST
|
||||
#undef XX
|
||||
}
|
||||
|
||||
@@ -27,7 +27,7 @@
|
||||
*/
|
||||
|
||||
#include <machine/cpu-features.h>
|
||||
#include <private/bionic_asm.h>
|
||||
#include <machine/asm.h>
|
||||
|
||||
|
||||
#ifdef HAVE_32_BYTE_CACHE_LINE
|
||||
@@ -107,11 +107,9 @@ ENTRY(memcmp)
|
||||
bmi 10f
|
||||
#endif
|
||||
|
||||
.save {r4, lr}
|
||||
/* save registers */
|
||||
stmfd sp!, {r4, lr}
|
||||
.cfi_def_cfa_offset 8
|
||||
.cfi_rel_offset r4, 0
|
||||
.cfi_rel_offset lr, 4
|
||||
|
||||
/* since r0 hold the result, move the first source
|
||||
* pointer somewhere else
|
||||
|
||||
@@ -27,20 +27,20 @@
|
||||
*/
|
||||
|
||||
#include <machine/cpu-features.h>
|
||||
#include <private/bionic_asm.h>
|
||||
#include <machine/asm.h>
|
||||
|
||||
/*
|
||||
* Optimized memcmp16() for ARM9.
|
||||
* This would not be optimal on XScale or ARM11, where more prefetching
|
||||
* and use of pld will be needed.
|
||||
* and use of PLD will be needed.
|
||||
* The 2 major optimzations here are
|
||||
* (1) The main loop compares 16 bytes at a time
|
||||
* (2) The loads are scheduled in a way they won't stall
|
||||
*/
|
||||
|
||||
ENTRY(__memcmp16)
|
||||
pld [r0, #0]
|
||||
pld [r1, #0]
|
||||
PLD (r0, #0)
|
||||
PLD (r1, #0)
|
||||
|
||||
/* take of the case where length is nul or the buffers are the same */
|
||||
cmp r0, r1
|
||||
@@ -62,28 +62,26 @@ ENTRY(__memcmp16)
|
||||
bpl 0f
|
||||
|
||||
/* small blocks (less then 12 words) */
|
||||
pld [r0, #32]
|
||||
pld [r1, #32]
|
||||
PLD (r0, #32)
|
||||
PLD (r1, #32)
|
||||
|
||||
1: ldrh r0, [r3], #2
|
||||
ldrh ip, [r1], #2
|
||||
subs r0, r0, ip
|
||||
bxne lr
|
||||
bxne lr
|
||||
subs r2, r2, #1
|
||||
bne 1b
|
||||
bx lr
|
||||
|
||||
|
||||
.save {r4, lr}
|
||||
/* save registers */
|
||||
0: stmfd sp!, {r4, lr}
|
||||
.cfi_def_cfa_offset 8
|
||||
.cfi_rel_offset r4, 0
|
||||
.cfi_rel_offset lr, 4
|
||||
|
||||
|
||||
/* align first pointer to word boundary */
|
||||
tst r3, #2
|
||||
beq 0f
|
||||
|
||||
|
||||
ldrh r0, [r3], #2
|
||||
ldrh ip, [r1], #2
|
||||
sub r2, r2, #1
|
||||
@@ -111,10 +109,10 @@ ENTRY(__memcmp16)
|
||||
ldr ip, [r1]
|
||||
subs r2, r2, #(16 + 2)
|
||||
bmi 1f
|
||||
|
||||
|
||||
0:
|
||||
pld [r3, #64]
|
||||
pld [r1, #64]
|
||||
PLD (r3, #64)
|
||||
PLD (r1, #64)
|
||||
ldr r0, [r3], #4
|
||||
ldr lr, [r1, #4]!
|
||||
eors r0, r0, ip
|
||||
@@ -139,14 +137,14 @@ ENTRY(__memcmp16)
|
||||
ldreq r0, [r3], #4
|
||||
ldreq ip, [r1, #4]!
|
||||
eoreqs r0, r0, lr
|
||||
bne 2f
|
||||
bne 2f
|
||||
subs r2, r2, #16
|
||||
bhs 0b
|
||||
|
||||
/* do we have at least 2 words left? */
|
||||
1: adds r2, r2, #(16 - 2 + 2)
|
||||
bmi 4f
|
||||
|
||||
|
||||
/* finish off 2 words at a time */
|
||||
3: ldr r0, [r3], #4
|
||||
ldr ip, [r1], #4
|
||||
@@ -195,8 +193,8 @@ ENTRY(__memcmp16)
|
||||
sub r2, r2, #8
|
||||
|
||||
6:
|
||||
pld [r3, #64]
|
||||
pld [r1, #64]
|
||||
PLD (r3, #64)
|
||||
PLD (r1, #64)
|
||||
mov ip, lr, lsr #16
|
||||
ldr lr, [r1], #4
|
||||
ldr r0, [r3], #4
|
||||
|
||||
@@ -27,7 +27,7 @@
|
||||
*/
|
||||
|
||||
#include <machine/cpu-features.h>
|
||||
#include <private/bionic_asm.h>
|
||||
#include <machine/asm.h>
|
||||
|
||||
#if defined(__ARM_NEON__) && !defined(ARCH_ARM_USE_NON_NEON_MEMCPY)
|
||||
|
||||
@@ -352,9 +352,9 @@ ENTRY(memcpy)
|
||||
|
||||
// preload the destination because we'll align it to a cache line
|
||||
// with small writes. Also start the source "pump".
|
||||
pld [r0, #0]
|
||||
pld [r1, #0]
|
||||
pld [r1, #32]
|
||||
PLD (r0, #0)
|
||||
PLD (r1, #0)
|
||||
PLD (r1, #32)
|
||||
|
||||
/* it simplifies things to take care of len<4 early */
|
||||
cmp r2, #4
|
||||
@@ -442,7 +442,7 @@ cached_aligned32:
|
||||
add r12, r12, #64
|
||||
|
||||
1: ldmia r1!, { r4-r11 }
|
||||
pld [r12, #64]
|
||||
PLD (r12, #64)
|
||||
subs r2, r2, #32
|
||||
|
||||
// NOTE: if r12 is more than 64 ahead of r1, the following ldrhi
|
||||
@@ -563,7 +563,7 @@ loop16:
|
||||
ldr r12, [r1], #4
|
||||
1: mov r4, r12
|
||||
ldmia r1!, { r5,r6,r7, r8,r9,r10,r11}
|
||||
pld [r1, #64]
|
||||
PLD (r1, #64)
|
||||
subs r2, r2, #32
|
||||
ldrhs r12, [r1], #4
|
||||
orr r3, r3, r4, lsl #16
|
||||
@@ -590,7 +590,7 @@ loop8:
|
||||
ldr r12, [r1], #4
|
||||
1: mov r4, r12
|
||||
ldmia r1!, { r5,r6,r7, r8,r9,r10,r11}
|
||||
pld [r1, #64]
|
||||
PLD (r1, #64)
|
||||
subs r2, r2, #32
|
||||
ldrhs r12, [r1], #4
|
||||
orr r3, r3, r4, lsl #24
|
||||
@@ -617,7 +617,7 @@ loop24:
|
||||
ldr r12, [r1], #4
|
||||
1: mov r4, r12
|
||||
ldmia r1!, { r5,r6,r7, r8,r9,r10,r11}
|
||||
pld [r1, #64]
|
||||
PLD (r1, #64)
|
||||
subs r2, r2, #32
|
||||
ldrhs r12, [r1], #4
|
||||
orr r3, r3, r4, lsl #8
|
||||
|
||||
406
libc/arch-arm/bionic/memcpy.a15.S
Normal file
406
libc/arch-arm/bionic/memcpy.a15.S
Normal file
@@ -0,0 +1,406 @@
|
||||
/*
|
||||
* Copyright (c) 2013 ARM Ltd
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. The name of the company may not be used to endorse or promote
|
||||
* products derived from this software without specific prior written
|
||||
* permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR IMPLIED
|
||||
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
||||
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
|
||||
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
||||
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
||||
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
||||
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
||||
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
/* Prototype: void *memcpy (void *dst, const void *src, size_t count). */
|
||||
|
||||
/* Use the version of memcpy implemented using LDRD and STRD.
|
||||
This version is tuned for Cortex-A15.
|
||||
This might not be the best for other ARMv7-A CPUs,
|
||||
but there is no predefine to distinguish between
|
||||
different CPUs in the same architecture,
|
||||
and this version is better than the plain memcpy provided in newlib.
|
||||
|
||||
Therefore, we use this version for all ARMv7-A CPUS. */
|
||||
|
||||
/* To make the same code compile for both ARM and Thumb instruction
|
||||
sets, switch to unified syntax at the beginning of this function.
|
||||
However, by using the same code, we may be missing optimization
|
||||
opportunities. For instance, in LDRD/STRD instructions, the first
|
||||
destination register must be even and the second consecutive in
|
||||
ARM state, but not in Thumb state. */
|
||||
|
||||
#include <machine/cpu-features.h>
|
||||
#include <machine/asm.h>
|
||||
|
||||
.syntax unified
|
||||
|
||||
ENTRY(memcpy)
|
||||
|
||||
/* Assumes that n >= 0, and dst, src are valid pointers.
|
||||
If there is at least 8 bytes to copy, use LDRD/STRD.
|
||||
If src and dst are misaligned with different offsets,
|
||||
first copy byte by byte until dst is aligned,
|
||||
and then copy using LDRD/STRD and shift if needed.
|
||||
When less than 8 left, copy a word and then byte by byte. */
|
||||
|
||||
/* Save registers (r0 holds the return value):
|
||||
optimized push {r0, r4, r5, r6, r7, lr}.
|
||||
To try and improve performance, stack layout changed,
|
||||
i.e., not keeping the stack looking like users expect
|
||||
(highest numbered register at highest address). */
|
||||
.save {r0, lr}
|
||||
push {r0, lr}
|
||||
.save {r4, r5}
|
||||
strd r4, r5, [sp, #-8]!
|
||||
.save {r6, r7}
|
||||
strd r6, r7, [sp, #-8]!
|
||||
|
||||
/* TODO: Add debug frame directives.
|
||||
We don't need exception unwind directives, because the code below
|
||||
does not throw any exceptions and does not call any other functions.
|
||||
Generally, newlib functions like this lack debug information for
|
||||
assembler source. */
|
||||
|
||||
/* Get copying of tiny blocks out of the way first. */
|
||||
/* Is there at least 4 bytes to copy? */
|
||||
subs r2, r2, #4
|
||||
blt copy_less_than_4 /* If n < 4. */
|
||||
|
||||
/* Check word alignment. */
|
||||
ands ip, r0, #3 /* ip = last 2 bits of dst. */
|
||||
bne dst_not_word_aligned /* If dst is not word-aligned. */
|
||||
|
||||
/* Get here if dst is word-aligned. */
|
||||
ands ip, r1, #3 /* ip = last 2 bits of src. */
|
||||
bne src_not_word_aligned /* If src is not word-aligned. */
|
||||
word_aligned:
|
||||
/* Get here if source and dst both are word-aligned.
|
||||
The number of bytes remaining to copy is r2+4. */
|
||||
|
||||
/* Is there is at least 64 bytes to copy? */
|
||||
subs r2, r2, #60
|
||||
blt copy_less_than_64 /* If r2 + 4 < 64. */
|
||||
|
||||
/* First, align the destination buffer to 8-bytes,
|
||||
to make sure double loads and stores don't cross cache line boundary,
|
||||
as they are then more expensive even if the data is in the cache
|
||||
(require two load/store issue cycles instead of one).
|
||||
If only one of the buffers is not 8-bytes aligned,
|
||||
then it's more important to align dst than src,
|
||||
because there is more penalty for stores
|
||||
than loads that cross cacheline boundary.
|
||||
This check and realignment are only worth doing
|
||||
if there is a lot to copy. */
|
||||
|
||||
/* Get here if dst is word aligned,
|
||||
i.e., the 2 least significant bits are 0.
|
||||
If dst is not 2w aligned (i.e., the 3rd bit is not set in dst),
|
||||
then copy 1 word (4 bytes). */
|
||||
ands r3, r0, #4
|
||||
beq 11f /* If dst already two-word aligned. */
|
||||
ldr r3, [r1], #4
|
||||
str r3, [r0], #4
|
||||
subs r2, r2, #4
|
||||
blt copy_less_than_64
|
||||
|
||||
11:
|
||||
/* TODO: Align to cacheline (useful for PLD optimization). */
|
||||
|
||||
/* Every loop iteration copies 64 bytes. */
|
||||
1:
|
||||
.irp offset, #0, #8, #16, #24, #32, #40, #48, #56
|
||||
ldrd r4, r5, [r1, \offset]
|
||||
strd r4, r5, [r0, \offset]
|
||||
.endr
|
||||
|
||||
add r0, r0, #64
|
||||
add r1, r1, #64
|
||||
subs r2, r2, #64
|
||||
bge 1b /* If there is more to copy. */
|
||||
|
||||
copy_less_than_64:
|
||||
|
||||
/* Get here if less than 64 bytes to copy, -64 <= r2 < 0.
|
||||
Restore the count if there is more than 7 bytes to copy. */
|
||||
adds r2, r2, #56
|
||||
blt copy_less_than_8
|
||||
|
||||
/* Copy 8 bytes at a time. */
|
||||
2:
|
||||
ldrd r4, r5, [r1], #8
|
||||
strd r4, r5, [r0], #8
|
||||
subs r2, r2, #8
|
||||
bge 2b /* If there is more to copy. */
|
||||
|
||||
copy_less_than_8:
|
||||
|
||||
/* Get here if less than 8 bytes to copy, -8 <= r2 < 0.
|
||||
Check if there is more to copy. */
|
||||
cmn r2, #8
|
||||
beq return /* If r2 + 8 == 0. */
|
||||
|
||||
/* Restore the count if there is more than 3 bytes to copy. */
|
||||
adds r2, r2, #4
|
||||
blt copy_less_than_4
|
||||
|
||||
/* Copy 4 bytes. */
|
||||
ldr r3, [r1], #4
|
||||
str r3, [r0], #4
|
||||
|
||||
copy_less_than_4:
|
||||
/* Get here if less than 4 bytes to copy, -4 <= r2 < 0. */
|
||||
|
||||
/* Restore the count, check if there is more to copy. */
|
||||
adds r2, r2, #4
|
||||
beq return /* If r2 == 0. */
|
||||
|
||||
/* Get here with r2 is in {1,2,3}={01,10,11}. */
|
||||
/* Logical shift left r2, insert 0s, update flags. */
|
||||
lsls r2, r2, #31
|
||||
|
||||
/* Copy byte by byte.
|
||||
Condition ne means the last bit of r2 is 0.
|
||||
Condition cs means the second to last bit of r2 is set,
|
||||
i.e., r2 is 1 or 3. */
|
||||
itt ne
|
||||
ldrbne r3, [r1], #1
|
||||
strbne r3, [r0], #1
|
||||
|
||||
itttt cs
|
||||
ldrbcs r4, [r1], #1
|
||||
ldrbcs r5, [r1]
|
||||
strbcs r4, [r0], #1
|
||||
strbcs r5, [r0]
|
||||
|
||||
return:
|
||||
/* Restore registers: optimized pop {r0, r4, r5, r6, r7, pc} */
|
||||
/* This is the only return point of memcpy. */
|
||||
ldrd r6, r7, [sp], #8
|
||||
ldrd r4, r5, [sp], #8
|
||||
pop {r0, pc}
|
||||
|
||||
#ifndef __ARM_FEATURE_UNALIGNED
|
||||
|
||||
/* The following assembly macro implements misaligned copy in software.
|
||||
Assumes that dst is word aligned, src is at offset "pull" bits from
|
||||
word, push = 32 - pull, and the number of bytes that remain to copy
|
||||
is r2 + 4, r2 >= 0. */
|
||||
|
||||
/* In the code below, r2 is the number of bytes that remain to be
|
||||
written. The number of bytes read is always larger, because we have
|
||||
partial words in the shift queue. */
|
||||
|
||||
.macro miscopy pull push shiftleft shiftright
|
||||
|
||||
/* Align src to the previous word boundary. */
|
||||
bic r1, r1, #3
|
||||
|
||||
/* Initialize the shift queue. */
|
||||
ldr r5, [r1], #4 /* Load a word from source. */
|
||||
|
||||
subs r2, r2, #4
|
||||
blt 6f /* Go to misaligned copy of less than 8 bytes. */
|
||||
|
||||
/* Get here if there is more than 8 bytes to copy.
|
||||
The number of bytes to copy is r2+8, r2 >= 0. */
|
||||
|
||||
subs r2, r2, #56
|
||||
blt 4f /* Go to misaligned copy of less than 64 bytes. */
|
||||
|
||||
3:
|
||||
/* Get here if there is more than 64 bytes to copy.
|
||||
The number of bytes to copy is r2+64, r2 >= 0. */
|
||||
|
||||
/* Copy 64 bytes in every iteration.
|
||||
Use a partial word from the shift queue. */
|
||||
.irp offset, #0, #8, #16, #24, #32, #40, #48, #56
|
||||
mov r6, r5, \shiftleft #\pull
|
||||
ldrd r4, r5, [r1, \offset]
|
||||
orr r6, r6, r4, \shiftright #\push
|
||||
mov r7, r4, \shiftleft #\pull
|
||||
orr r7, r7, r5, \shiftright #\push
|
||||
strd r6, r7, [r0, \offset]
|
||||
.endr
|
||||
|
||||
add r1, r1, #64
|
||||
add r0, r0, #64
|
||||
subs r2, r2, #64
|
||||
bge 3b
|
||||
|
||||
4:
|
||||
/* Get here if there is less than 64 bytes to copy (-64 <= r2 < 0)
|
||||
and they are misaligned. */
|
||||
|
||||
/* Restore the count if there is more than 7 bytes to copy. */
|
||||
adds r2, r2, #56
|
||||
|
||||
blt 6f /* Go to misaligned copy of less than 8 bytes. */
|
||||
|
||||
5:
|
||||
/* Copy 8 bytes at a time.
|
||||
Use a partial word from the shift queue. */
|
||||
mov r6, r5, \shiftleft #\pull
|
||||
ldrd r4, r5, [r1], #8
|
||||
orr r6, r6, r4, \shiftright #\push
|
||||
mov r7, r4, \shiftleft #\pull
|
||||
orr r7, r7, r5, \shiftright #\push
|
||||
strd r6, r7, [r0], #8
|
||||
|
||||
subs r2, r2, #8
|
||||
bge 5b /* If there is more to copy. */
|
||||
|
||||
6:
|
||||
/* Get here if there less than 8 bytes to copy (-8 <= r2 < 0)
|
||||
and they are misaligned. */
|
||||
|
||||
/* Check if there is more to copy. */
|
||||
cmn r2, #8
|
||||
beq return
|
||||
|
||||
/* Check if there is less than 4 bytes to copy. */
|
||||
cmn r2, #4
|
||||
|
||||
itt lt
|
||||
/* Restore src offset from word-align. */
|
||||
sublt r1, r1, #(\push / 8)
|
||||
blt copy_less_than_4
|
||||
|
||||
/* Use a partial word from the shift queue. */
|
||||
mov r3, r5, \shiftleft #\pull
|
||||
/* Load a word from src, but without writeback
|
||||
(this word is not fully written to dst). */
|
||||
ldr r5, [r1]
|
||||
|
||||
/* Restore src offset from word-align. */
|
||||
add r1, r1, #(\pull / 8)
|
||||
|
||||
/* Shift bytes to create one dst word and store it. */
|
||||
orr r3, r3, r5, \shiftright #\push
|
||||
str r3, [r0], #4
|
||||
|
||||
/* Use single byte copying of the remaining bytes. */
|
||||
b copy_less_than_4
|
||||
|
||||
.endm
|
||||
|
||||
#endif /* not __ARM_FEATURE_UNALIGNED */
|
||||
|
||||
dst_not_word_aligned:
|
||||
|
||||
/* Get here when dst is not aligned and ip has the last 2 bits of dst,
|
||||
i.e., ip is the offset of dst from word.
|
||||
The number of bytes that remains to copy is r2 + 4,
|
||||
i.e., there are at least 4 bytes to copy.
|
||||
Write a partial word (0 to 3 bytes), such that dst becomes
|
||||
word-aligned. */
|
||||
|
||||
/* If dst is at ip bytes offset from a word (with 0 < ip < 4),
|
||||
then there are (4 - ip) bytes to fill up to align dst to the next
|
||||
word. */
|
||||
rsb ip, ip, #4 /* ip = #4 - ip. */
|
||||
cmp ip, #2
|
||||
|
||||
/* Copy byte by byte with conditionals. */
|
||||
itt gt
|
||||
ldrbgt r3, [r1], #1
|
||||
strbgt r3, [r0], #1
|
||||
|
||||
itt ge
|
||||
ldrbge r4, [r1], #1
|
||||
strbge r4, [r0], #1
|
||||
|
||||
ldrb lr, [r1], #1
|
||||
strb lr, [r0], #1
|
||||
|
||||
/* Update the count.
|
||||
ip holds the number of bytes we have just copied. */
|
||||
subs r2, r2, ip /* r2 = r2 - ip. */
|
||||
blt copy_less_than_4 /* If r2 < ip. */
|
||||
|
||||
/* Get here if there are more than 4 bytes to copy.
|
||||
Check if src is aligned. If beforehand src and dst were not word
|
||||
aligned but congruent (same offset), then now they are both
|
||||
word-aligned, and we can copy the rest efficiently (without
|
||||
shifting). */
|
||||
ands ip, r1, #3 /* ip = last 2 bits of src. */
|
||||
beq word_aligned /* If r1 is word-aligned. */
|
||||
|
||||
src_not_word_aligned:
|
||||
/* Get here when src is not word-aligned, but dst is word-aligned.
|
||||
The number of bytes that remains to copy is r2+4. */
|
||||
|
||||
#ifdef __ARM_FEATURE_UNALIGNED
|
||||
/* Copy word by word using LDR when alignment can be done in hardware,
|
||||
i.e., SCTLR.A is set, supporting unaligned access in LDR and STR. */
|
||||
subs r2, r2, #60
|
||||
blt 8f
|
||||
|
||||
7:
|
||||
/* Copy 64 bytes in every loop iteration. */
|
||||
.irp offset, #0, #4, #8, #12, #16, #20, #24, #28, #32, #36, #40, #44, #48, #52, #56, #60
|
||||
ldr r3, [r1, \offset]
|
||||
str r3, [r0, \offset]
|
||||
.endr
|
||||
|
||||
add r0, r0, #64
|
||||
add r1, r1, #64
|
||||
subs r2, r2, #64
|
||||
bge 7b
|
||||
|
||||
8:
|
||||
/* Get here if less than 64 bytes to copy, -64 <= r2 < 0.
|
||||
Check if there is more than 3 bytes to copy. */
|
||||
adds r2, r2, #60
|
||||
blt copy_less_than_4
|
||||
|
||||
9:
|
||||
/* Get here if there is less than 64 but at least 4 bytes to copy,
|
||||
where the number of bytes to copy is r2+4. */
|
||||
ldr r3, [r1], #4
|
||||
str r3, [r0], #4
|
||||
subs r2, r2, #4
|
||||
bge 9b
|
||||
|
||||
b copy_less_than_4
|
||||
|
||||
#else /* not __ARM_FEATURE_UNALIGNED */
|
||||
|
||||
/* ip has last 2 bits of src,
|
||||
i.e., ip is the offset of src from word, and ip > 0.
|
||||
Compute shifts needed to copy from src to dst. */
|
||||
cmp ip, #2
|
||||
beq miscopy_16_16 /* If ip == 2. */
|
||||
bge miscopy_24_8 /* If ip == 3. */
|
||||
|
||||
/* Get here if ip == 1. */
|
||||
|
||||
/* Endian independent macros for shifting bytes within registers. */
|
||||
|
||||
#ifndef __ARMEB__
|
||||
miscopy_8_24: miscopy pull=8 push=24 shiftleft=lsr shiftright=lsl
|
||||
miscopy_16_16: miscopy pull=16 push=16 shiftleft=lsr shiftright=lsl
|
||||
miscopy_24_8: miscopy pull=24 push=8 shiftleft=lsr shiftright=lsl
|
||||
#else /* not __ARMEB__ */
|
||||
miscopy_8_24: miscopy pull=8 push=24 shiftleft=lsl shiftright=lsr
|
||||
miscopy_16_16: miscopy pull=16 push=16 shiftleft=lsl shiftright=lsr
|
||||
miscopy_24_8: miscopy pull=24 push=8 shiftleft=lsl shiftright=lsr
|
||||
#endif /* not __ARMEB__ */
|
||||
|
||||
#endif /* not __ARM_FEATURE_UNALIGNED */
|
||||
|
||||
END(memcpy)
|
||||
@@ -44,7 +44,7 @@
|
||||
*/
|
||||
|
||||
#include <machine/cpu-features.h>
|
||||
#include <private/bionic_asm.h>
|
||||
#include <machine/asm.h>
|
||||
|
||||
.syntax unified
|
||||
/* This implementation requires ARM state. */
|
||||
|
||||
200
libc/arch-arm/bionic/memset.S
Normal file
200
libc/arch-arm/bionic/memset.S
Normal file
@@ -0,0 +1,200 @@
|
||||
/*
|
||||
* Copyright (C) 2008 The Android Open Source Project
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* * Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* * Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
||||
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <machine/cpu-features.h>
|
||||
#include <machine/asm.h>
|
||||
|
||||
/*
|
||||
* Optimized memset() for ARM.
|
||||
*
|
||||
* memset() returns its first argument.
|
||||
*/
|
||||
|
||||
#if defined(__ARM_NEON__)
|
||||
.fpu neon
|
||||
#endif
|
||||
|
||||
ENTRY(bzero)
|
||||
mov r2, r1
|
||||
mov r1, #0
|
||||
// Fall through to memset...
|
||||
END(bzero)
|
||||
|
||||
ENTRY(memset)
|
||||
#if defined(__ARM_NEON__)
|
||||
|
||||
#ifdef NEON_MEMSET_DIVIDER
|
||||
cmp r2, #NEON_MEMSET_DIVIDER
|
||||
bhi 11f
|
||||
#endif
|
||||
.save {r0}
|
||||
stmfd sp!, {r0}
|
||||
|
||||
vdup.8 q0, r1
|
||||
|
||||
#ifndef NEON_UNALIGNED_ACCESS
|
||||
/* do we have at least 16-bytes to write (needed for alignment below) */
|
||||
cmp r2, #16
|
||||
blo 3f
|
||||
|
||||
/* align destination to 16 bytes for the write-buffer */
|
||||
rsb r3, r0, #0
|
||||
ands r3, r3, #0xF
|
||||
beq 2f
|
||||
|
||||
/* write up to 15-bytes (count in r3) */
|
||||
sub r2, r2, r3
|
||||
movs ip, r3, lsl #31
|
||||
strmib r1, [r0], #1
|
||||
strcsb r1, [r0], #1
|
||||
strcsb r1, [r0], #1
|
||||
movs ip, r3, lsl #29
|
||||
bge 1f
|
||||
|
||||
// writes 4 bytes, 32-bits aligned
|
||||
vst1.32 {d0[0]}, [r0, :32]!
|
||||
1: bcc 2f
|
||||
|
||||
// writes 8 bytes, 64-bits aligned
|
||||
vst1.8 {d0}, [r0, :64]!
|
||||
2:
|
||||
#endif
|
||||
/* make sure we have at least 32 bytes to write */
|
||||
subs r2, r2, #32
|
||||
blo 2f
|
||||
vmov q1, q0
|
||||
|
||||
1: /* The main loop writes 32 bytes at a time */
|
||||
subs r2, r2, #32
|
||||
#ifndef NEON_UNALIGNED_ACCESS
|
||||
vst1.8 {d0 - d3}, [r0, :128]!
|
||||
#else
|
||||
vst1.8 {d0 - d3}, [r0]!
|
||||
#endif
|
||||
bhs 1b
|
||||
|
||||
2: /* less than 32 left */
|
||||
add r2, r2, #32
|
||||
tst r2, #0x10
|
||||
beq 3f
|
||||
|
||||
// writes 16 bytes, 128-bits aligned
|
||||
#ifndef NEON_UNALIGNED_ACCESS
|
||||
vst1.8 {d0, d1}, [r0, :128]!
|
||||
#else
|
||||
vst1.8 {d0, d1}, [r0]!
|
||||
#endif
|
||||
3: /* write up to 15-bytes (count in r2) */
|
||||
movs ip, r2, lsl #29
|
||||
bcc 1f
|
||||
vst1.8 {d0}, [r0]!
|
||||
1: bge 2f
|
||||
vst1.32 {d0[0]}, [r0]!
|
||||
2: movs ip, r2, lsl #31
|
||||
strmib r1, [r0], #1
|
||||
strcsb r1, [r0], #1
|
||||
strcsb r1, [r0], #1
|
||||
ldmfd sp!, {r0}
|
||||
bx lr
|
||||
11:
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Optimized memset() for ARM.
|
||||
*
|
||||
* memset() returns its first argument.
|
||||
*/
|
||||
|
||||
/* compute the offset to align the destination
|
||||
* offset = (4-(src&3))&3 = -src & 3
|
||||
*/
|
||||
|
||||
.save {r0, r4-r7, lr}
|
||||
stmfd sp!, {r0, r4-r7, lr}
|
||||
rsb r3, r0, #0
|
||||
ands r3, r3, #3
|
||||
cmp r3, r2
|
||||
movhi r3, r2
|
||||
|
||||
/* splat r1 */
|
||||
mov r1, r1, lsl #24
|
||||
orr r1, r1, r1, lsr #8
|
||||
orr r1, r1, r1, lsr #16
|
||||
|
||||
movs r12, r3, lsl #31
|
||||
strcsb r1, [r0], #1 /* can't use strh (alignment unknown) */
|
||||
strcsb r1, [r0], #1
|
||||
strmib r1, [r0], #1
|
||||
subs r2, r2, r3
|
||||
ldmlsfd sp!, {r0, r4-r7, lr} /* return */
|
||||
bxls lr
|
||||
|
||||
/* align the destination to a cache-line */
|
||||
mov r12, r1
|
||||
mov lr, r1
|
||||
mov r4, r1
|
||||
mov r5, r1
|
||||
mov r6, r1
|
||||
mov r7, r1
|
||||
|
||||
rsb r3, r0, #0
|
||||
ands r3, r3, #0x1C
|
||||
beq 3f
|
||||
cmp r3, r2
|
||||
andhi r3, r2, #0x1C
|
||||
sub r2, r2, r3
|
||||
|
||||
/* conditionally writes 0 to 7 words (length in r3) */
|
||||
movs r3, r3, lsl #28
|
||||
stmcsia r0!, {r1, lr}
|
||||
stmcsia r0!, {r1, lr}
|
||||
stmmiia r0!, {r1, lr}
|
||||
movs r3, r3, lsl #2
|
||||
strcs r1, [r0], #4
|
||||
|
||||
3:
|
||||
subs r2, r2, #32
|
||||
mov r3, r1
|
||||
bmi 2f
|
||||
1: subs r2, r2, #32
|
||||
stmia r0!, {r1,r3,r4,r5,r6,r7,r12,lr}
|
||||
bhs 1b
|
||||
2: add r2, r2, #32
|
||||
|
||||
/* conditionally stores 0 to 31 bytes */
|
||||
movs r2, r2, lsl #28
|
||||
stmcsia r0!, {r1,r3,r12,lr}
|
||||
stmmiia r0!, {r1, lr}
|
||||
movs r2, r2, lsl #2
|
||||
strcs r1, [r0], #4
|
||||
strmih r1, [r0], #2
|
||||
movs r2, r2, lsl #2
|
||||
strcsb r1, [r0]
|
||||
ldmfd sp!, {r0, r4-r7, lr}
|
||||
bx lr
|
||||
END(memset)
|
||||
@@ -34,7 +34,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <private/bionic_asm.h>
|
||||
#include <machine/asm.h>
|
||||
#include <machine/setjmp.h>
|
||||
#include <machine/cpu-features.h>
|
||||
|
||||
@@ -51,16 +51,12 @@
|
||||
ENTRY(setjmp)
|
||||
/* Block all signals and retrieve the old signal mask */
|
||||
stmfd sp!, {r0, r14}
|
||||
.cfi_def_cfa_offset 8
|
||||
.cfi_rel_offset r0, 0
|
||||
.cfi_rel_offset r14, 4
|
||||
mov r0, #0x00000000
|
||||
|
||||
bl PIC_SYM(sigblock, PLT)
|
||||
bl PIC_SYM(_C_LABEL(sigblock), PLT)
|
||||
mov r1, r0
|
||||
|
||||
ldmfd sp!, {r0, r14}
|
||||
.cfi_def_cfa_offset 0
|
||||
|
||||
/* Store signal mask */
|
||||
str r1, [r0, #(_JB_SIGMASK * 4)]
|
||||
@@ -100,20 +96,13 @@ ENTRY(longjmp)
|
||||
|
||||
/* Set signal mask */
|
||||
stmfd sp!, {r0, r1, r14}
|
||||
.cfi_def_cfa_offset 12
|
||||
.cfi_rel_offset r0, 0
|
||||
.cfi_rel_offset r1, 4
|
||||
.cfi_rel_offset r14, 8
|
||||
sub sp, sp, #4 /* align the stack */
|
||||
.cfi_adjust_cfa_offset 4
|
||||
|
||||
mov r0, r2
|
||||
bl PIC_SYM(sigsetmask, PLT)
|
||||
bl PIC_SYM(_C_LABEL(sigsetmask), PLT)
|
||||
|
||||
add sp, sp, #4 /* unalign the stack */
|
||||
.cfi_adjust_cfa_offset -4
|
||||
ldmfd sp!, {r0, r1, r14}
|
||||
.cfi_def_cfa_offset 0
|
||||
ldmfd sp!, {r0, r1, r14}
|
||||
|
||||
#ifdef __ARM_HAVE_VFP
|
||||
/* Restore floating-point registers */
|
||||
@@ -147,7 +136,7 @@ ENTRY(longjmp)
|
||||
|
||||
/* validation failed, die die die. */
|
||||
botch:
|
||||
bl PIC_SYM(longjmperror, PLT)
|
||||
bl PIC_SYM(abort, PLT)
|
||||
bl PIC_SYM(_C_LABEL(longjmperror), PLT)
|
||||
bl PIC_SYM(_C_LABEL(abort), PLT)
|
||||
b . - 8 /* Cannot get here */
|
||||
END(longjmp)
|
||||
|
||||
@@ -35,7 +35,7 @@
|
||||
|
||||
#define _ALIGN_TEXT .align 0
|
||||
|
||||
#include <private/bionic_asm.h>
|
||||
#include <machine/asm.h>
|
||||
#include <machine/setjmp.h>
|
||||
|
||||
/*
|
||||
@@ -50,8 +50,8 @@
|
||||
|
||||
ENTRY(sigsetjmp)
|
||||
teq r1, #0
|
||||
beq PIC_SYM(_setjmp, PLT)
|
||||
b PIC_SYM(setjmp, PLT)
|
||||
beq PIC_SYM(_C_LABEL(_setjmp), PLT)
|
||||
b PIC_SYM(_C_LABEL(setjmp), PLT)
|
||||
END(sigsetjmp)
|
||||
|
||||
.L_setjmp_magic:
|
||||
@@ -61,6 +61,6 @@ ENTRY(siglongjmp)
|
||||
ldr r2, .L_setjmp_magic
|
||||
ldr r3, [r0]
|
||||
teq r2, r3
|
||||
beq PIC_SYM(_longjmp, PLT)
|
||||
b PIC_SYM(longjmp, PLT)
|
||||
beq PIC_SYM(_C_LABEL(_longjmp), PLT)
|
||||
b PIC_SYM(_C_LABEL(longjmp), PLT)
|
||||
END(siglongjmp)
|
||||
|
||||
@@ -28,7 +28,7 @@
|
||||
*/
|
||||
|
||||
#include <machine/cpu-features.h>
|
||||
#include <private/bionic_asm.h>
|
||||
#include <machine/asm.h>
|
||||
|
||||
.text
|
||||
|
||||
@@ -52,8 +52,8 @@
|
||||
#define magic2(REG) REG, lsl #7
|
||||
|
||||
ENTRY(strcmp)
|
||||
pld [r0, #0]
|
||||
pld [r1, #0]
|
||||
PLD(r0, #0)
|
||||
PLD(r1, #0)
|
||||
eor r2, r0, r1
|
||||
tst r2, #3
|
||||
|
||||
@@ -88,8 +88,8 @@ ENTRY(strcmp)
|
||||
orr r4, r4, r4, lsl #16
|
||||
.p2align 2
|
||||
4:
|
||||
pld [r0, #8]
|
||||
pld [r1, #8]
|
||||
PLD(r0, #8)
|
||||
PLD(r1, #8)
|
||||
sub r2, ip, magic1(r4)
|
||||
cmp ip, r3
|
||||
itttt eq
|
||||
|
||||
787
libc/arch-arm/bionic/strcmp.a15.S
Normal file
787
libc/arch-arm/bionic/strcmp.a15.S
Normal file
@@ -0,0 +1,787 @@
|
||||
/*
|
||||
* Copyright (c) 2013 ARM Ltd
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. The name of the company may not be used to endorse or promote
|
||||
* products derived from this software without specific prior written
|
||||
* permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR IMPLIED
|
||||
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
||||
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
|
||||
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
||||
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
||||
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
||||
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
||||
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include "arm_asm.h"
|
||||
|
||||
#ifdef __ARMEB__
|
||||
#define S2LOMEM lsl
|
||||
#define S2LOMEMEQ lsleq
|
||||
#define S2HIMEM lsr
|
||||
#define MSB 0x000000ff
|
||||
#define LSB 0xff000000
|
||||
#define BYTE0_OFFSET 24
|
||||
#define BYTE1_OFFSET 16
|
||||
#define BYTE2_OFFSET 8
|
||||
#define BYTE3_OFFSET 0
|
||||
#else /* not __ARMEB__ */
|
||||
#define S2LOMEM lsr
|
||||
#define S2LOMEMEQ lsreq
|
||||
#define S2HIMEM lsl
|
||||
#define BYTE0_OFFSET 0
|
||||
#define BYTE1_OFFSET 8
|
||||
#define BYTE2_OFFSET 16
|
||||
#define BYTE3_OFFSET 24
|
||||
#define MSB 0xff000000
|
||||
#define LSB 0x000000ff
|
||||
#endif /* not __ARMEB__ */
|
||||
|
||||
.syntax unified
|
||||
|
||||
#if defined (__thumb__)
|
||||
.thumb
|
||||
.thumb_func
|
||||
#endif
|
||||
.global strcmp
|
||||
.type strcmp, %function
|
||||
strcmp:
|
||||
|
||||
#if (defined (__thumb__) && !defined (__thumb2__))
|
||||
1:
|
||||
ldrb r2, [r0]
|
||||
ldrb r3, [r1]
|
||||
adds r0, r0, #1
|
||||
adds r1, r1, #1
|
||||
cmp r2, #0
|
||||
beq 2f
|
||||
cmp r2, r3
|
||||
beq 1b
|
||||
2:
|
||||
subs r0, r2, r3
|
||||
bx lr
|
||||
#elif (defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED))
|
||||
1:
|
||||
ldrb r2, [r0], #1
|
||||
ldrb r3, [r1], #1
|
||||
cmp r2, #1
|
||||
it cs
|
||||
cmpcs r2, r3
|
||||
beq 1b
|
||||
subs r0, r2, r3
|
||||
RETURN
|
||||
|
||||
|
||||
#elif (defined (_ISA_THUMB_2) || defined (_ISA_ARM_6))
|
||||
/* Use LDRD whenever possible. */
|
||||
|
||||
/* The main thing to look out for when comparing large blocks is that
|
||||
the loads do not cross a page boundary when loading past the index
|
||||
of the byte with the first difference or the first string-terminator.
|
||||
|
||||
For example, if the strings are identical and the string-terminator
|
||||
is at index k, byte by byte comparison will not load beyond address
|
||||
s1+k and s2+k; word by word comparison may load up to 3 bytes beyond
|
||||
k; double word - up to 7 bytes. If the load of these bytes crosses
|
||||
a page boundary, it might cause a memory fault (if the page is not mapped)
|
||||
that would not have happened in byte by byte comparison.
|
||||
|
||||
If an address is (double) word aligned, then a load of a (double) word
|
||||
from that address will not cross a page boundary.
|
||||
Therefore, the algorithm below considers word and double-word alignment
|
||||
of strings separately. */
|
||||
|
||||
/* High-level description of the algorithm.
|
||||
|
||||
* The fast path: if both strings are double-word aligned,
|
||||
use LDRD to load two words from each string in every loop iteration.
|
||||
* If the strings have the same offset from a word boundary,
|
||||
use LDRB to load and compare byte by byte until
|
||||
the first string is aligned to a word boundary (at most 3 bytes).
|
||||
This is optimized for quick return on short unaligned strings.
|
||||
* If the strings have the same offset from a double-word boundary,
|
||||
use LDRD to load two words from each string in every loop iteration, as in the fast path.
|
||||
* If the strings do not have the same offset from a double-word boundary,
|
||||
load a word from the second string before the loop to initialize the queue.
|
||||
Use LDRD to load two words from every string in every loop iteration.
|
||||
Inside the loop, load the second word from the second string only after comparing
|
||||
the first word, using the queued value, to guarantee safety across page boundaries.
|
||||
* If the strings do not have the same offset from a word boundary,
|
||||
use LDR and a shift queue. Order of loads and comparisons matters,
|
||||
similarly to the previous case.
|
||||
|
||||
* Use UADD8 and SEL to compare words, and use REV and CLZ to compute the return value.
|
||||
* The only difference between ARM and Thumb modes is the use of CBZ instruction.
|
||||
* The only difference between big and little endian is the use of REV in little endian
|
||||
to compute the return value, instead of MOV.
|
||||
* No preload. [TODO.]
|
||||
*/
|
||||
|
||||
.macro m_cbz reg label
|
||||
#ifdef __thumb2__
|
||||
cbz \reg, \label
|
||||
#else /* not defined __thumb2__ */
|
||||
cmp \reg, #0
|
||||
beq \label
|
||||
#endif /* not defined __thumb2__ */
|
||||
.endm /* m_cbz */
|
||||
|
||||
.macro m_cbnz reg label
|
||||
#ifdef __thumb2__
|
||||
cbnz \reg, \label
|
||||
#else /* not defined __thumb2__ */
|
||||
cmp \reg, #0
|
||||
bne \label
|
||||
#endif /* not defined __thumb2__ */
|
||||
.endm /* m_cbnz */
|
||||
|
||||
.macro init
|
||||
/* Macro to save temporary registers and prepare magic values. */
|
||||
subs sp, sp, #16
|
||||
strd r4, r5, [sp, #8]
|
||||
strd r6, r7, [sp]
|
||||
mvn r6, #0 /* all F */
|
||||
mov r7, #0 /* all 0 */
|
||||
.endm /* init */
|
||||
|
||||
.macro magic_compare_and_branch w1 w2 label
|
||||
/* Macro to compare registers w1 and w2 and conditionally branch to label. */
|
||||
cmp \w1, \w2 /* Are w1 and w2 the same? */
|
||||
magic_find_zero_bytes \w1
|
||||
it eq
|
||||
cmpeq ip, #0 /* Is there a zero byte in w1? */
|
||||
bne \label
|
||||
.endm /* magic_compare_and_branch */
|
||||
|
||||
.macro magic_find_zero_bytes w1
|
||||
/* Macro to find all-zero bytes in w1, result is in ip. */
|
||||
#if (defined (__ARM_FEATURE_DSP))
|
||||
uadd8 ip, \w1, r6
|
||||
sel ip, r7, r6
|
||||
#else /* not defined (__ARM_FEATURE_DSP) */
|
||||
/* __ARM_FEATURE_DSP is not defined for some Cortex-M processors.
|
||||
Coincidently, these processors only have Thumb-2 mode, where we can use the
|
||||
the (large) magic constant available directly as an immediate in instructions.
|
||||
Note that we cannot use the magic constant in ARM mode, where we need
|
||||
to create the constant in a register. */
|
||||
sub ip, \w1, #0x01010101
|
||||
bic ip, ip, \w1
|
||||
and ip, ip, #0x80808080
|
||||
#endif /* not defined (__ARM_FEATURE_DSP) */
|
||||
.endm /* magic_find_zero_bytes */
|
||||
|
||||
.macro setup_return w1 w2
|
||||
#ifdef __ARMEB__
|
||||
mov r1, \w1
|
||||
mov r2, \w2
|
||||
#else /* not __ARMEB__ */
|
||||
rev r1, \w1
|
||||
rev r2, \w2
|
||||
#endif /* not __ARMEB__ */
|
||||
.endm /* setup_return */
|
||||
|
||||
/*
|
||||
optpld r0, #0
|
||||
optpld r1, #0
|
||||
*/
|
||||
|
||||
/* Are both strings double-word aligned? */
|
||||
orr ip, r0, r1
|
||||
tst ip, #7
|
||||
bne do_align
|
||||
|
||||
/* Fast path. */
|
||||
init
|
||||
|
||||
doubleword_aligned:
|
||||
|
||||
/* Get here when the strings to compare are double-word aligned. */
|
||||
/* Compare two words in every iteration. */
|
||||
.p2align 2
|
||||
2:
|
||||
/*
|
||||
optpld r0, #16
|
||||
optpld r1, #16
|
||||
*/
|
||||
|
||||
/* Load the next double-word from each string. */
|
||||
ldrd r2, r3, [r0], #8
|
||||
ldrd r4, r5, [r1], #8
|
||||
|
||||
magic_compare_and_branch w1=r2, w2=r4, label=return_24
|
||||
magic_compare_and_branch w1=r3, w2=r5, label=return_35
|
||||
b 2b
|
||||
|
||||
do_align:
|
||||
/* Is the first string word-aligned? */
|
||||
ands ip, r0, #3
|
||||
beq word_aligned_r0
|
||||
|
||||
/* Fast compare byte by byte until the first string is word-aligned. */
|
||||
/* The offset of r0 from a word boundary is in ip. Thus, the number of bytes
|
||||
to read until the next word boudnary is 4-ip. */
|
||||
bic r0, r0, #3
|
||||
ldr r2, [r0], #4
|
||||
lsls ip, ip, #31
|
||||
beq byte2
|
||||
bcs byte3
|
||||
|
||||
byte1:
|
||||
ldrb ip, [r1], #1
|
||||
uxtb r3, r2, ror #BYTE1_OFFSET
|
||||
subs ip, r3, ip
|
||||
bne fast_return
|
||||
m_cbz reg=r3, label=fast_return
|
||||
|
||||
byte2:
|
||||
ldrb ip, [r1], #1
|
||||
uxtb r3, r2, ror #BYTE2_OFFSET
|
||||
subs ip, r3, ip
|
||||
bne fast_return
|
||||
m_cbz reg=r3, label=fast_return
|
||||
|
||||
byte3:
|
||||
ldrb ip, [r1], #1
|
||||
uxtb r3, r2, ror #BYTE3_OFFSET
|
||||
subs ip, r3, ip
|
||||
bne fast_return
|
||||
m_cbnz reg=r3, label=word_aligned_r0
|
||||
|
||||
fast_return:
|
||||
mov r0, ip
|
||||
bx lr
|
||||
|
||||
word_aligned_r0:
|
||||
init
|
||||
/* The first string is word-aligned. */
|
||||
/* Is the second string word-aligned? */
|
||||
ands ip, r1, #3
|
||||
bne strcmp_unaligned
|
||||
|
||||
word_aligned:
|
||||
/* The strings are word-aligned. */
|
||||
/* Is the first string double-word aligned? */
|
||||
tst r0, #4
|
||||
beq doubleword_aligned_r0
|
||||
|
||||
/* If r0 is not double-word aligned yet, align it by loading
|
||||
and comparing the next word from each string. */
|
||||
ldr r2, [r0], #4
|
||||
ldr r4, [r1], #4
|
||||
magic_compare_and_branch w1=r2 w2=r4 label=return_24
|
||||
|
||||
doubleword_aligned_r0:
|
||||
/* Get here when r0 is double-word aligned. */
|
||||
/* Is r1 doubleword_aligned? */
|
||||
tst r1, #4
|
||||
beq doubleword_aligned
|
||||
|
||||
/* Get here when the strings to compare are word-aligned,
|
||||
r0 is double-word aligned, but r1 is not double-word aligned. */
|
||||
|
||||
/* Initialize the queue. */
|
||||
ldr r5, [r1], #4
|
||||
|
||||
/* Compare two words in every iteration. */
|
||||
.p2align 2
|
||||
3:
|
||||
/*
|
||||
optpld r0, #16
|
||||
optpld r1, #16
|
||||
*/
|
||||
|
||||
/* Load the next double-word from each string and compare. */
|
||||
ldrd r2, r3, [r0], #8
|
||||
magic_compare_and_branch w1=r2 w2=r5 label=return_25
|
||||
ldrd r4, r5, [r1], #8
|
||||
magic_compare_and_branch w1=r3 w2=r4 label=return_34
|
||||
b 3b
|
||||
|
||||
.macro miscmp_word offsetlo offsethi
|
||||
/* Macro to compare misaligned strings. */
|
||||
/* r0, r1 are word-aligned, and at least one of the strings
|
||||
is not double-word aligned. */
|
||||
/* Compare one word in every loop iteration. */
|
||||
/* OFFSETLO is the original bit-offset of r1 from a word-boundary,
|
||||
OFFSETHI is 32 - OFFSETLO (i.e., offset from the next word). */
|
||||
|
||||
/* Initialize the shift queue. */
|
||||
ldr r5, [r1], #4
|
||||
|
||||
/* Compare one word from each string in every loop iteration. */
|
||||
.p2align 2
|
||||
7:
|
||||
ldr r3, [r0], #4
|
||||
S2LOMEM r5, r5, #\offsetlo
|
||||
magic_find_zero_bytes w1=r3
|
||||
cmp r7, ip, S2HIMEM #\offsetlo
|
||||
and r2, r3, r6, S2LOMEM #\offsetlo
|
||||
it eq
|
||||
cmpeq r2, r5
|
||||
bne return_25
|
||||
ldr r5, [r1], #4
|
||||
cmp ip, #0
|
||||
eor r3, r2, r3
|
||||
S2HIMEM r2, r5, #\offsethi
|
||||
it eq
|
||||
cmpeq r3, r2
|
||||
bne return_32
|
||||
b 7b
|
||||
.endm /* miscmp_word */
|
||||
|
||||
strcmp_unaligned:
|
||||
/* r0 is word-aligned, r1 is at offset ip from a word. */
|
||||
/* Align r1 to the (previous) word-boundary. */
|
||||
bic r1, r1, #3
|
||||
|
||||
/* Unaligned comparison word by word using LDRs. */
|
||||
cmp ip, #2
|
||||
beq miscmp_word_16 /* If ip == 2. */
|
||||
bge miscmp_word_24 /* If ip == 3. */
|
||||
miscmp_word offsetlo=8 offsethi=24 /* If ip == 1. */
|
||||
miscmp_word_16: miscmp_word offsetlo=16 offsethi=16
|
||||
miscmp_word_24: miscmp_word offsetlo=24 offsethi=8
|
||||
|
||||
|
||||
return_32:
|
||||
setup_return w1=r3, w2=r2
|
||||
b do_return
|
||||
return_34:
|
||||
setup_return w1=r3, w2=r4
|
||||
b do_return
|
||||
return_25:
|
||||
setup_return w1=r2, w2=r5
|
||||
b do_return
|
||||
return_35:
|
||||
setup_return w1=r3, w2=r5
|
||||
b do_return
|
||||
return_24:
|
||||
setup_return w1=r2, w2=r4
|
||||
|
||||
do_return:
|
||||
|
||||
#ifdef __ARMEB__
|
||||
mov r0, ip
|
||||
#else /* not __ARMEB__ */
|
||||
rev r0, ip
|
||||
#endif /* not __ARMEB__ */
|
||||
|
||||
/* Restore temporaries early, before computing the return value. */
|
||||
ldrd r6, r7, [sp]
|
||||
ldrd r4, r5, [sp, #8]
|
||||
adds sp, sp, #16
|
||||
|
||||
/* There is a zero or a different byte between r1 and r2. */
|
||||
/* r0 contains a mask of all-zero bytes in r1. */
|
||||
/* Using r0 and not ip here because cbz requires low register. */
|
||||
m_cbz reg=r0, label=compute_return_value
|
||||
clz r0, r0
|
||||
/* r0 contains the number of bits on the left of the first all-zero byte in r1. */
|
||||
rsb r0, r0, #24
|
||||
/* Here, r0 contains the number of bits on the right of the first all-zero byte in r1. */
|
||||
lsr r1, r1, r0
|
||||
lsr r2, r2, r0
|
||||
|
||||
compute_return_value:
|
||||
movs r0, #1
|
||||
cmp r1, r2
|
||||
/* The return value is computed as follows.
|
||||
If r1>r2 then (C==1 and Z==0) and LS doesn't hold and r0 is #1 at return.
|
||||
If r1<r2 then (C==0 and Z==0) and we execute SBC with carry_in=0,
|
||||
which means r0:=r0-r0-1 and r0 is #-1 at return.
|
||||
If r1=r2 then (C==1 and Z==1) and we execute SBC with carry_in=1,
|
||||
which means r0:=r0-r0 and r0 is #0 at return.
|
||||
(C==0 and Z==1) cannot happen because the carry bit is "not borrow". */
|
||||
it ls
|
||||
sbcls r0, r0, r0
|
||||
bx lr
|
||||
|
||||
|
||||
#else /* !(defined (_ISA_THUMB_2) || defined (_ISA_ARM_6)
|
||||
defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED) ||
|
||||
(defined (__thumb__) && !defined (__thumb2__))) */
|
||||
|
||||
/* Use LDR whenever possible. */
|
||||
|
||||
#ifdef __thumb2__
|
||||
#define magic1(REG) 0x01010101
|
||||
#define magic2(REG) 0x80808080
|
||||
#else
|
||||
#define magic1(REG) REG
|
||||
#define magic2(REG) REG, lsl #7
|
||||
#endif
|
||||
|
||||
optpld r0
|
||||
optpld r1
|
||||
eor r2, r0, r1
|
||||
tst r2, #3
|
||||
/* Strings not at same byte offset from a word boundary. */
|
||||
bne strcmp_unaligned
|
||||
ands r2, r0, #3
|
||||
bic r0, r0, #3
|
||||
bic r1, r1, #3
|
||||
ldr ip, [r0], #4
|
||||
it eq
|
||||
ldreq r3, [r1], #4
|
||||
beq 1f
|
||||
/* Although s1 and s2 have identical initial alignment, they are
|
||||
not currently word aligned. Rather than comparing bytes,
|
||||
make sure that any bytes fetched from before the addressed
|
||||
bytes are forced to 0xff. Then they will always compare
|
||||
equal. */
|
||||
eor r2, r2, #3
|
||||
lsl r2, r2, #3
|
||||
mvn r3, MSB
|
||||
S2LOMEM r2, r3, r2
|
||||
ldr r3, [r1], #4
|
||||
orr ip, ip, r2
|
||||
orr r3, r3, r2
|
||||
1:
|
||||
#ifndef __thumb2__
|
||||
/* Load the 'magic' constant 0x01010101. */
|
||||
str r4, [sp, #-4]!
|
||||
mov r4, #1
|
||||
orr r4, r4, r4, lsl #8
|
||||
orr r4, r4, r4, lsl #16
|
||||
#endif
|
||||
.p2align 2
|
||||
4:
|
||||
optpld r0, #8
|
||||
optpld r1, #8
|
||||
sub r2, ip, magic1(r4)
|
||||
cmp ip, r3
|
||||
itttt eq
|
||||
/* check for any zero bytes in first word */
|
||||
biceq r2, r2, ip
|
||||
tsteq r2, magic2(r4)
|
||||
ldreq ip, [r0], #4
|
||||
ldreq r3, [r1], #4
|
||||
beq 4b
|
||||
2:
|
||||
/* There's a zero or a different byte in the word */
|
||||
S2HIMEM r0, ip, #24
|
||||
S2LOMEM ip, ip, #8
|
||||
cmp r0, #1
|
||||
it cs
|
||||
cmpcs r0, r3, S2HIMEM #24
|
||||
it eq
|
||||
S2LOMEMEQ r3, r3, #8
|
||||
beq 2b
|
||||
/* On a big-endian machine, r0 contains the desired byte in bits
|
||||
0-7; on a little-endian machine they are in bits 24-31. In
|
||||
both cases the other bits in r0 are all zero. For r3 the
|
||||
interesting byte is at the other end of the word, but the
|
||||
other bits are not necessarily zero. We need a signed result
|
||||
representing the differnece in the unsigned bytes, so for the
|
||||
little-endian case we can't just shift the interesting bits
|
||||
up. */
|
||||
#ifdef __ARMEB__
|
||||
sub r0, r0, r3, lsr #24
|
||||
#else
|
||||
and r3, r3, #255
|
||||
#ifdef __thumb2__
|
||||
/* No RSB instruction in Thumb2 */
|
||||
lsr r0, r0, #24
|
||||
sub r0, r0, r3
|
||||
#else
|
||||
rsb r0, r3, r0, lsr #24
|
||||
#endif
|
||||
#endif
|
||||
#ifndef __thumb2__
|
||||
ldr r4, [sp], #4
|
||||
#endif
|
||||
RETURN
|
||||
|
||||
|
||||
strcmp_unaligned:
|
||||
|
||||
#if 0
|
||||
/* The assembly code below is based on the following alogrithm. */
|
||||
#ifdef __ARMEB__
|
||||
#define RSHIFT <<
|
||||
#define LSHIFT >>
|
||||
#else
|
||||
#define RSHIFT >>
|
||||
#define LSHIFT <<
|
||||
#endif
|
||||
|
||||
#define body(shift) \
|
||||
mask = 0xffffffffU RSHIFT shift; \
|
||||
w1 = *wp1++; \
|
||||
w2 = *wp2++; \
|
||||
do \
|
||||
{ \
|
||||
t1 = w1 & mask; \
|
||||
if (__builtin_expect(t1 != w2 RSHIFT shift, 0)) \
|
||||
{ \
|
||||
w2 RSHIFT= shift; \
|
||||
break; \
|
||||
} \
|
||||
if (__builtin_expect(((w1 - b1) & ~w1) & (b1 << 7), 0)) \
|
||||
{ \
|
||||
/* See comment in assembler below re syndrome on big-endian */\
|
||||
if ((((w1 - b1) & ~w1) & (b1 << 7)) & mask) \
|
||||
w2 RSHIFT= shift; \
|
||||
else \
|
||||
{ \
|
||||
w2 = *wp2; \
|
||||
t1 = w1 RSHIFT (32 - shift); \
|
||||
w2 = (w2 LSHIFT (32 - shift)) RSHIFT (32 - shift); \
|
||||
} \
|
||||
break; \
|
||||
} \
|
||||
w2 = *wp2++; \
|
||||
t1 ^= w1; \
|
||||
if (__builtin_expect(t1 != w2 LSHIFT (32 - shift), 0)) \
|
||||
{ \
|
||||
t1 = w1 >> (32 - shift); \
|
||||
w2 = (w2 << (32 - shift)) RSHIFT (32 - shift); \
|
||||
break; \
|
||||
} \
|
||||
w1 = *wp1++; \
|
||||
} while (1)
|
||||
|
||||
const unsigned* wp1;
|
||||
const unsigned* wp2;
|
||||
unsigned w1, w2;
|
||||
unsigned mask;
|
||||
unsigned shift;
|
||||
unsigned b1 = 0x01010101;
|
||||
char c1, c2;
|
||||
unsigned t1;
|
||||
|
||||
while (((unsigned) s1) & 3)
|
||||
{
|
||||
c1 = *s1++;
|
||||
c2 = *s2++;
|
||||
if (c1 == 0 || c1 != c2)
|
||||
return c1 - (int)c2;
|
||||
}
|
||||
wp1 = (unsigned*) (((unsigned)s1) & ~3);
|
||||
wp2 = (unsigned*) (((unsigned)s2) & ~3);
|
||||
t1 = ((unsigned) s2) & 3;
|
||||
if (t1 == 1)
|
||||
{
|
||||
body(8);
|
||||
}
|
||||
else if (t1 == 2)
|
||||
{
|
||||
body(16);
|
||||
}
|
||||
else
|
||||
{
|
||||
body (24);
|
||||
}
|
||||
|
||||
do
|
||||
{
|
||||
#ifdef __ARMEB__
|
||||
c1 = (char) t1 >> 24;
|
||||
c2 = (char) w2 >> 24;
|
||||
#else /* not __ARMEB__ */
|
||||
c1 = (char) t1;
|
||||
c2 = (char) w2;
|
||||
#endif /* not __ARMEB__ */
|
||||
t1 RSHIFT= 8;
|
||||
w2 RSHIFT= 8;
|
||||
} while (c1 != 0 && c1 == c2);
|
||||
return c1 - c2;
|
||||
#endif /* 0 */
|
||||
|
||||
|
||||
wp1 .req r0
|
||||
wp2 .req r1
|
||||
b1 .req r2
|
||||
w1 .req r4
|
||||
w2 .req r5
|
||||
t1 .req ip
|
||||
@ r3 is scratch
|
||||
|
||||
/* First of all, compare bytes until wp1(sp1) is word-aligned. */
|
||||
1:
|
||||
tst wp1, #3
|
||||
beq 2f
|
||||
ldrb r2, [wp1], #1
|
||||
ldrb r3, [wp2], #1
|
||||
cmp r2, #1
|
||||
it cs
|
||||
cmpcs r2, r3
|
||||
beq 1b
|
||||
sub r0, r2, r3
|
||||
RETURN
|
||||
|
||||
2:
|
||||
str r5, [sp, #-4]!
|
||||
str r4, [sp, #-4]!
|
||||
//stmfd sp!, {r4, r5}
|
||||
mov b1, #1
|
||||
orr b1, b1, b1, lsl #8
|
||||
orr b1, b1, b1, lsl #16
|
||||
|
||||
and t1, wp2, #3
|
||||
bic wp2, wp2, #3
|
||||
ldr w1, [wp1], #4
|
||||
ldr w2, [wp2], #4
|
||||
cmp t1, #2
|
||||
beq 2f
|
||||
bhi 3f
|
||||
|
||||
/* Critical inner Loop: Block with 3 bytes initial overlap */
|
||||
.p2align 2
|
||||
1:
|
||||
bic t1, w1, MSB
|
||||
cmp t1, w2, S2LOMEM #8
|
||||
sub r3, w1, b1
|
||||
bic r3, r3, w1
|
||||
bne 4f
|
||||
ands r3, r3, b1, lsl #7
|
||||
it eq
|
||||
ldreq w2, [wp2], #4
|
||||
bne 5f
|
||||
eor t1, t1, w1
|
||||
cmp t1, w2, S2HIMEM #24
|
||||
bne 6f
|
||||
ldr w1, [wp1], #4
|
||||
b 1b
|
||||
4:
|
||||
S2LOMEM w2, w2, #8
|
||||
b 8f
|
||||
|
||||
5:
|
||||
#ifdef __ARMEB__
|
||||
/* The syndrome value may contain false ones if the string ends
|
||||
with the bytes 0x01 0x00 */
|
||||
tst w1, #0xff000000
|
||||
itt ne
|
||||
tstne w1, #0x00ff0000
|
||||
tstne w1, #0x0000ff00
|
||||
beq 7f
|
||||
#else
|
||||
bics r3, r3, #0xff000000
|
||||
bne 7f
|
||||
#endif
|
||||
ldrb w2, [wp2]
|
||||
S2LOMEM t1, w1, #24
|
||||
#ifdef __ARMEB__
|
||||
lsl w2, w2, #24
|
||||
#endif
|
||||
b 8f
|
||||
|
||||
6:
|
||||
S2LOMEM t1, w1, #24
|
||||
and w2, w2, LSB
|
||||
b 8f
|
||||
|
||||
/* Critical inner Loop: Block with 2 bytes initial overlap */
|
||||
.p2align 2
|
||||
2:
|
||||
S2HIMEM t1, w1, #16
|
||||
sub r3, w1, b1
|
||||
S2LOMEM t1, t1, #16
|
||||
bic r3, r3, w1
|
||||
cmp t1, w2, S2LOMEM #16
|
||||
bne 4f
|
||||
ands r3, r3, b1, lsl #7
|
||||
it eq
|
||||
ldreq w2, [wp2], #4
|
||||
bne 5f
|
||||
eor t1, t1, w1
|
||||
cmp t1, w2, S2HIMEM #16
|
||||
bne 6f
|
||||
ldr w1, [wp1], #4
|
||||
b 2b
|
||||
|
||||
5:
|
||||
#ifdef __ARMEB__
|
||||
/* The syndrome value may contain false ones if the string ends
|
||||
with the bytes 0x01 0x00 */
|
||||
tst w1, #0xff000000
|
||||
it ne
|
||||
tstne w1, #0x00ff0000
|
||||
beq 7f
|
||||
#else
|
||||
lsls r3, r3, #16
|
||||
bne 7f
|
||||
#endif
|
||||
ldrh w2, [wp2]
|
||||
S2LOMEM t1, w1, #16
|
||||
#ifdef __ARMEB__
|
||||
lsl w2, w2, #16
|
||||
#endif
|
||||
b 8f
|
||||
|
||||
6:
|
||||
S2HIMEM w2, w2, #16
|
||||
S2LOMEM t1, w1, #16
|
||||
4:
|
||||
S2LOMEM w2, w2, #16
|
||||
b 8f
|
||||
|
||||
/* Critical inner Loop: Block with 1 byte initial overlap */
|
||||
.p2align 2
|
||||
3:
|
||||
and t1, w1, LSB
|
||||
cmp t1, w2, S2LOMEM #24
|
||||
sub r3, w1, b1
|
||||
bic r3, r3, w1
|
||||
bne 4f
|
||||
ands r3, r3, b1, lsl #7
|
||||
it eq
|
||||
ldreq w2, [wp2], #4
|
||||
bne 5f
|
||||
eor t1, t1, w1
|
||||
cmp t1, w2, S2HIMEM #8
|
||||
bne 6f
|
||||
ldr w1, [wp1], #4
|
||||
b 3b
|
||||
4:
|
||||
S2LOMEM w2, w2, #24
|
||||
b 8f
|
||||
5:
|
||||
/* The syndrome value may contain false ones if the string ends
|
||||
with the bytes 0x01 0x00 */
|
||||
tst w1, LSB
|
||||
beq 7f
|
||||
ldr w2, [wp2], #4
|
||||
6:
|
||||
S2LOMEM t1, w1, #8
|
||||
bic w2, w2, MSB
|
||||
b 8f
|
||||
7:
|
||||
mov r0, #0
|
||||
//ldmfd sp!, {r4, r5}
|
||||
ldr r4, [sp], #4
|
||||
ldr r5, [sp], #4
|
||||
RETURN
|
||||
8:
|
||||
and r2, t1, LSB
|
||||
and r0, w2, LSB
|
||||
cmp r0, #1
|
||||
it cs
|
||||
cmpcs r0, r2
|
||||
itt eq
|
||||
S2LOMEMEQ t1, t1, #8
|
||||
S2LOMEMEQ w2, w2, #8
|
||||
beq 8b
|
||||
sub r0, r2, r0
|
||||
//ldmfd sp!, {r4, r5}
|
||||
ldr r4, [sp], #4
|
||||
ldr r5, [sp], #4
|
||||
RETURN
|
||||
|
||||
#endif /* !(defined (_ISA_THUMB_2) || defined (_ISA_ARM_6)
|
||||
defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED) ||
|
||||
(defined (__thumb__) && !defined (__thumb2__))) */
|
||||
@@ -26,16 +26,12 @@
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <private/bionic_asm.h>
|
||||
#include <linux/err.h>
|
||||
#include <machine/asm.h>
|
||||
|
||||
ENTRY(syscall)
|
||||
mov ip, sp
|
||||
stmfd sp!, {r4, r5, r6, r7}
|
||||
.cfi_def_cfa_offset 16
|
||||
.cfi_rel_offset r4, 0
|
||||
.cfi_rel_offset r5, 4
|
||||
.cfi_rel_offset r6, 8
|
||||
.cfi_rel_offset r7, 12
|
||||
mov r7, r0
|
||||
mov r0, r1
|
||||
mov r1, r2
|
||||
@@ -43,7 +39,6 @@ ENTRY(syscall)
|
||||
ldmfd ip, {r3, r4, r5, r6}
|
||||
swi #0
|
||||
ldmfd sp!, {r4, r5, r6, r7}
|
||||
.cfi_def_cfa_offset 0
|
||||
cmn r0, #(MAX_ERRNO + 1)
|
||||
bxls lr
|
||||
neg r0, r0
|
||||
|
||||
51
libc/arch-arm/bionic/tgkill.S
Normal file
51
libc/arch-arm/bionic/tgkill.S
Normal file
@@ -0,0 +1,51 @@
|
||||
/*
|
||||
* Copyright (C) 2008 The Android Open Source Project
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* * Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* * Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
||||
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <linux/err.h>
|
||||
#include <asm/unistd.h>
|
||||
#include <machine/asm.h>
|
||||
|
||||
/* unlike our auto-generated syscall stubs, this code saves lr
|
||||
on the stack, as well as a few other registers. this makes
|
||||
our stack unwinder happy, when we generate debug stack
|
||||
traces after the C library or other parts of the system
|
||||
abort due to a fatal runtime error (e.g. detection
|
||||
of a corrupted malloc heap).
|
||||
*/
|
||||
|
||||
ENTRY(tgkill)
|
||||
.save {r4-r7, ip, lr}
|
||||
stmfd sp!, {r4-r7, ip, lr}
|
||||
ldr r7, =__NR_tgkill
|
||||
swi #0
|
||||
ldmfd sp!, {r4-r7, ip, lr}
|
||||
cmn r0, #(MAX_ERRNO + 1)
|
||||
bxls lr
|
||||
neg r0, r0
|
||||
b __set_errno
|
||||
END(tgkill)
|
||||
50
libc/arch-arm/bionic/tkill.S
Normal file
50
libc/arch-arm/bionic/tkill.S
Normal file
@@ -0,0 +1,50 @@
|
||||
/*
|
||||
* Copyright (C) 2008 The Android Open Source Project
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* * Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* * Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
||||
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <linux/err.h>
|
||||
#include <asm/unistd.h>
|
||||
#include <machine/asm.h>
|
||||
|
||||
/* unlike our auto-generated syscall stubs, this code saves lr
|
||||
on the stack, as well as a few other registers. this makes
|
||||
our stack unwinder happy, when we generate debug stack
|
||||
traces after the C library or other parts of the system
|
||||
abort due to a fatal runtime error (e.g. detection
|
||||
of a corrupted malloc heap).
|
||||
*/
|
||||
|
||||
ENTRY(tkill)
|
||||
stmfd sp!, {r4-r7, ip, lr}
|
||||
ldr r7, =__NR_tkill
|
||||
swi #0
|
||||
ldmfd sp!, {r4-r7, ip, lr}
|
||||
cmn r0, #(MAX_ERRNO + 1)
|
||||
bxls lr
|
||||
neg r0, r0
|
||||
b __set_errno
|
||||
END(tkill)
|
||||
@@ -26,8 +26,8 @@
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <private/bionic_asm.h>
|
||||
#include <private/libc_events.h>
|
||||
#include <machine/asm.h>
|
||||
#include "libc_events.h"
|
||||
|
||||
.syntax unified
|
||||
|
||||
@@ -38,6 +38,7 @@
|
||||
// Check that the two lengths together don't exceed the threshold, then
|
||||
// do a memcpy of the data.
|
||||
ENTRY(__strcat_chk)
|
||||
.cfi_startproc
|
||||
pld [r0, #0]
|
||||
push {r0, lr}
|
||||
.save {r0, lr}
|
||||
@@ -187,6 +188,8 @@ ENTRY(__strcat_chk)
|
||||
mov r2, r4
|
||||
add r0, r0, r3
|
||||
pop {r4, r5}
|
||||
|
||||
.cfi_endproc
|
||||
END(__strcat_chk)
|
||||
|
||||
#define MEMCPY_BASE __strcat_chk_memcpy_base
|
||||
@@ -194,7 +197,8 @@ END(__strcat_chk)
|
||||
|
||||
#include "memcpy_base.S"
|
||||
|
||||
ENTRY_PRIVATE(__strcat_chk_failed)
|
||||
ENTRY(__strcat_chk_failed)
|
||||
.cfi_startproc
|
||||
.save {r0, lr}
|
||||
.save {r4, r5}
|
||||
|
||||
@@ -214,8 +218,10 @@ error_code:
|
||||
.word BIONIC_EVENT_STRCAT_BUFFER_OVERFLOW
|
||||
error_message:
|
||||
.word error_string-(1b+4)
|
||||
|
||||
.cfi_endproc
|
||||
END(__strcat_chk_failed)
|
||||
|
||||
.data
|
||||
error_string:
|
||||
.string "strcat: prevented write past end of buffer"
|
||||
.string "strcat buffer overflow"
|
||||
|
||||
@@ -26,8 +26,8 @@
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <private/bionic_asm.h>
|
||||
#include <private/libc_events.h>
|
||||
#include <machine/asm.h>
|
||||
#include "libc_events.h"
|
||||
|
||||
.syntax unified
|
||||
|
||||
@@ -37,6 +37,7 @@
|
||||
// Get the length of the source string first, then do a memcpy of the data
|
||||
// instead of a strcpy.
|
||||
ENTRY(__strcpy_chk)
|
||||
.cfi_startproc
|
||||
pld [r0, #0]
|
||||
push {r0, lr}
|
||||
.save {r0, lr}
|
||||
@@ -154,13 +155,16 @@ ENTRY(__strcpy_chk)
|
||||
|
||||
// Add 1 for copy length to get the string terminator.
|
||||
add r2, r3, #1
|
||||
|
||||
.cfi_endproc
|
||||
END(__strcpy_chk)
|
||||
|
||||
#define MEMCPY_BASE __strcpy_chk_memcpy_base
|
||||
#define MEMCPY_BASE_ALIGNED __strcpy_chk_memcpy_base_aligned
|
||||
#include "memcpy_base.S"
|
||||
|
||||
ENTRY_PRIVATE(__strcpy_chk_failed)
|
||||
ENTRY(__strcpy_chk_failed)
|
||||
.cfi_startproc
|
||||
.save {r0, lr}
|
||||
.cfi_def_cfa_offset 8
|
||||
.cfi_rel_offset r0, 0
|
||||
@@ -175,8 +179,10 @@ error_code:
|
||||
.word BIONIC_EVENT_STRCPY_BUFFER_OVERFLOW
|
||||
error_message:
|
||||
.word error_string-(1b+4)
|
||||
|
||||
.cfi_endproc
|
||||
END(__strcpy_chk_failed)
|
||||
|
||||
.data
|
||||
error_string:
|
||||
.string "strcpy: prevented write past end of buffer"
|
||||
.string "strcpy buffer overflow"
|
||||
|
||||
@@ -55,34 +55,40 @@
|
||||
|
||||
// Prototype: void *memcpy (void *dst, const void *src, size_t count).
|
||||
|
||||
#include <private/bionic_asm.h>
|
||||
#include <private/libc_events.h>
|
||||
#include <machine/asm.h>
|
||||
#include "libc_events.h"
|
||||
|
||||
.text
|
||||
.syntax unified
|
||||
.fpu neon
|
||||
|
||||
ENTRY(__memcpy_chk)
|
||||
.cfi_startproc
|
||||
cmp r2, r3
|
||||
bhi __memcpy_chk_fail
|
||||
|
||||
// Fall through to memcpy...
|
||||
.cfi_endproc
|
||||
END(__memcpy_chk)
|
||||
|
||||
ENTRY(memcpy)
|
||||
.cfi_startproc
|
||||
pld [r1, #64]
|
||||
push {r0, lr}
|
||||
.save {r0, lr}
|
||||
.cfi_def_cfa_offset 8
|
||||
.cfi_rel_offset r0, 0
|
||||
.cfi_rel_offset lr, 4
|
||||
|
||||
.cfi_endproc
|
||||
END(memcpy)
|
||||
|
||||
#define MEMCPY_BASE __memcpy_base
|
||||
#define MEMCPY_BASE_ALIGNED __memcpy_base_aligned
|
||||
#include "memcpy_base.S"
|
||||
|
||||
ENTRY_PRIVATE(__memcpy_chk_fail)
|
||||
ENTRY(__memcpy_chk_fail)
|
||||
.cfi_startproc
|
||||
// Preserve lr for backtrace.
|
||||
push {lr}
|
||||
.save {lr}
|
||||
@@ -98,8 +104,9 @@ error_code:
|
||||
.word BIONIC_EVENT_MEMCPY_BUFFER_OVERFLOW
|
||||
error_message:
|
||||
.word error_string-(1b+8)
|
||||
.cfi_endproc
|
||||
END(__memcpy_chk_fail)
|
||||
|
||||
.data
|
||||
error_string:
|
||||
.string "memcpy: prevented write past end of buffer"
|
||||
.string "memcpy buffer overflow"
|
||||
|
||||
@@ -53,7 +53,8 @@
|
||||
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
ENTRY_PRIVATE(MEMCPY_BASE)
|
||||
ENTRY(MEMCPY_BASE)
|
||||
.cfi_startproc
|
||||
.save {r0, lr}
|
||||
.cfi_def_cfa_offset 8
|
||||
.cfi_rel_offset r0, 0
|
||||
@@ -169,9 +170,12 @@ ENTRY_PRIVATE(MEMCPY_BASE)
|
||||
eor r3, r0, r1
|
||||
ands r3, r3, #0x3
|
||||
bne .L_copy_unknown_alignment
|
||||
|
||||
.cfi_endproc
|
||||
END(MEMCPY_BASE)
|
||||
|
||||
ENTRY_PRIVATE(MEMCPY_BASE_ALIGNED)
|
||||
ENTRY(MEMCPY_BASE_ALIGNED)
|
||||
.cfi_startproc
|
||||
.save {r0, lr}
|
||||
.cfi_def_cfa_offset 8
|
||||
.cfi_rel_offset r0, 0
|
||||
@@ -320,4 +324,6 @@ ENTRY_PRIVATE(MEMCPY_BASE_ALIGNED)
|
||||
|
||||
// Src is guaranteed to be at least word aligned by this point.
|
||||
b .L_word_aligned
|
||||
|
||||
.cfi_endproc
|
||||
END(MEMCPY_BASE_ALIGNED)
|
||||
|
||||
@@ -27,8 +27,8 @@
|
||||
*/
|
||||
|
||||
#include <machine/cpu-features.h>
|
||||
#include <private/bionic_asm.h>
|
||||
#include <private/libc_events.h>
|
||||
#include <machine/asm.h>
|
||||
#include "libc_events.h"
|
||||
|
||||
/*
|
||||
* Optimized memset() for ARM.
|
||||
@@ -40,6 +40,7 @@
|
||||
.syntax unified
|
||||
|
||||
ENTRY(__memset_chk)
|
||||
.cfi_startproc
|
||||
cmp r2, r3
|
||||
bls .L_done
|
||||
|
||||
@@ -58,16 +59,21 @@ error_code:
|
||||
.word BIONIC_EVENT_MEMSET_BUFFER_OVERFLOW
|
||||
error_message:
|
||||
.word error_string-(1b+8)
|
||||
|
||||
.cfi_endproc
|
||||
END(__memset_chk)
|
||||
|
||||
ENTRY(bzero)
|
||||
.cfi_startproc
|
||||
mov r2, r1
|
||||
mov r1, #0
|
||||
.L_done:
|
||||
// Fall through to memset...
|
||||
.cfi_endproc
|
||||
END(bzero)
|
||||
|
||||
ENTRY(memset)
|
||||
.cfi_startproc
|
||||
.save {r0}
|
||||
stmfd sp!, {r0}
|
||||
.cfi_def_cfa_offset 4
|
||||
@@ -186,8 +192,9 @@ ENTRY(memset)
|
||||
strbcs r1, [r0], #1
|
||||
ldmfd sp!, {r0}
|
||||
bx lr
|
||||
.cfi_endproc
|
||||
END(memset)
|
||||
|
||||
.data
|
||||
error_string:
|
||||
.string "memset: prevented write past end of buffer"
|
||||
.string "memset buffer overflow"
|
||||
|
||||
@@ -53,7 +53,7 @@
|
||||
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <private/bionic_asm.h>
|
||||
#include <machine/asm.h>
|
||||
|
||||
.syntax unified
|
||||
|
||||
|
||||
@@ -27,7 +27,7 @@
|
||||
*/
|
||||
|
||||
#include <machine/cpu-features.h>
|
||||
#include <private/bionic_asm.h>
|
||||
#include <machine/asm.h>
|
||||
|
||||
#ifdef __ARMEB__
|
||||
#define S2LOMEM lsl
|
||||
@@ -145,8 +145,19 @@ ENTRY(strcmp)
|
||||
|
||||
.macro magic_find_zero_bytes w1
|
||||
/* Macro to find all-zero bytes in w1, result is in ip. */
|
||||
#if (defined (__ARM_FEATURE_DSP))
|
||||
uadd8 ip, \w1, r6
|
||||
sel ip, r7, r6
|
||||
#else /* not defined (__ARM_FEATURE_DSP) */
|
||||
/* __ARM_FEATURE_DSP is not defined for some Cortex-M processors.
|
||||
Coincidently, these processors only have Thumb-2 mode, where we can use the
|
||||
the (large) magic constant available directly as an immediate in instructions.
|
||||
Note that we cannot use the magic constant in ARM mode, where we need
|
||||
to create the constant in a register. */
|
||||
sub ip, \w1, #0x01010101
|
||||
bic ip, ip, \w1
|
||||
and ip, ip, #0x80808080
|
||||
#endif /* not defined (__ARM_FEATURE_DSP) */
|
||||
.endm /* magic_find_zero_bytes */
|
||||
|
||||
.macro setup_return w1 w2
|
||||
@@ -159,6 +170,7 @@ ENTRY(strcmp)
|
||||
#endif /* not __ARMEB__ */
|
||||
.endm /* setup_return */
|
||||
|
||||
.cfi_startproc
|
||||
pld [r0, #0]
|
||||
pld [r1, #0]
|
||||
|
||||
@@ -374,4 +386,5 @@ ENTRY(strcmp)
|
||||
it ls
|
||||
sbcls r0, r0, r0
|
||||
bx lr
|
||||
.cfi_endproc
|
||||
END(strcmp)
|
||||
|
||||
@@ -53,7 +53,7 @@
|
||||
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <private/bionic_asm.h>
|
||||
#include <machine/asm.h>
|
||||
|
||||
.syntax unified
|
||||
|
||||
|
||||
@@ -53,7 +53,7 @@
|
||||
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <private/bionic_asm.h>
|
||||
#include <machine/asm.h>
|
||||
|
||||
.syntax unified
|
||||
|
||||
|
||||
@@ -1,9 +1,10 @@
|
||||
libc_bionic_src_files_arm += \
|
||||
arch-arm/cortex-a15/bionic/memcpy.S \
|
||||
arch-arm/cortex-a15/bionic/memset.S \
|
||||
arch-arm/cortex-a15/bionic/strcat.S \
|
||||
arch-arm/cortex-a15/bionic/strcmp.S \
|
||||
arch-arm/cortex-a15/bionic/strcpy.S \
|
||||
arch-arm/cortex-a15/bionic/strlen.S \
|
||||
arch-arm/cortex-a15/bionic/__strcat_chk.S \
|
||||
arch-arm/cortex-a15/bionic/__strcpy_chk.S \
|
||||
$(call libc-add-cpu-variant-src,MEMCPY,arch-arm/cortex-a15/bionic/memcpy.S)
|
||||
$(call libc-add-cpu-variant-src,MEMSET,arch-arm/cortex-a15/bionic/memset.S)
|
||||
$(call libc-add-cpu-variant-src,STRCAT,arch-arm/cortex-a15/bionic/strcat.S)
|
||||
$(call libc-add-cpu-variant-src,STRCMP,arch-arm/cortex-a15/bionic/strcmp.S)
|
||||
$(call libc-add-cpu-variant-src,STRCPY,arch-arm/cortex-a15/bionic/strcpy.S)
|
||||
$(call libc-add-cpu-variant-src,STRLEN,arch-arm/cortex-a15/bionic/strlen.S)
|
||||
$(call libc-add-cpu-variant-src,__STRCAT_CHK,arch-arm/cortex-a15/bionic/__strcat_chk.S)
|
||||
$(call libc-add-cpu-variant-src,__STRCPY_CHK,arch-arm/cortex-a15/bionic/__strcpy_chk.S)
|
||||
|
||||
include bionic/libc/arch-arm/generic/generic.mk
|
||||
|
||||
@@ -26,8 +26,8 @@
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <private/bionic_asm.h>
|
||||
#include <private/libc_events.h>
|
||||
#include <machine/asm.h>
|
||||
#include "libc_events.h"
|
||||
|
||||
.syntax unified
|
||||
.fpu neon
|
||||
@@ -38,6 +38,7 @@
|
||||
// Check that the two lengths together don't exceed the threshold, then
|
||||
// do a memcpy of the data.
|
||||
ENTRY(__strcat_chk)
|
||||
.cfi_startproc
|
||||
pld [r0, #0]
|
||||
push {r0, lr}
|
||||
.save {r0, lr}
|
||||
@@ -192,13 +193,16 @@ ENTRY(__strcat_chk)
|
||||
pop {r4, r5}
|
||||
|
||||
// Fall through into the memcpy_base function.
|
||||
.cfi_endproc
|
||||
END(__strcat_chk)
|
||||
|
||||
#define MEMCPY_BASE __strcat_chk_memcpy_base
|
||||
#define MEMCPY_BASE_ALIGNED __strcat_chk_memcpy_base_aligned
|
||||
#include "memcpy_base.S"
|
||||
|
||||
ENTRY_PRIVATE(__strcat_chk_fail)
|
||||
ENTRY(__strcat_chk_fail)
|
||||
.cfi_startproc
|
||||
|
||||
.save {r0, lr}
|
||||
.save {r4, r5}
|
||||
.cfi_def_cfa_offset 8
|
||||
@@ -217,8 +221,10 @@ error_code:
|
||||
.word BIONIC_EVENT_STRCAT_BUFFER_OVERFLOW
|
||||
error_message:
|
||||
.word error_string-(1b+4)
|
||||
|
||||
.cfi_endproc
|
||||
END(__strcat_chk_fail)
|
||||
|
||||
.data
|
||||
error_string:
|
||||
.string "strcat: prevented write past end of buffer"
|
||||
.string "strcat buffer overflow"
|
||||
|
||||
@@ -26,8 +26,8 @@
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <private/bionic_asm.h>
|
||||
#include <private/libc_events.h>
|
||||
#include <machine/asm.h>
|
||||
#include "libc_events.h"
|
||||
|
||||
.syntax unified
|
||||
.fpu neon
|
||||
@@ -37,6 +37,7 @@
|
||||
// Get the length of the source string first, then do a memcpy of the data
|
||||
// instead of a strcpy.
|
||||
ENTRY(__strcpy_chk)
|
||||
.cfi_startproc
|
||||
pld [r0, #0]
|
||||
push {r0, lr}
|
||||
.save {r0, lr}
|
||||
@@ -157,6 +158,8 @@ ENTRY(__strcpy_chk)
|
||||
// Add 1 for copy length to get the string terminator.
|
||||
add r2, r3, #1
|
||||
|
||||
.cfi_endproc
|
||||
|
||||
// Fall through into the memcpy_base function.
|
||||
END(__strcpy_chk)
|
||||
|
||||
@@ -164,7 +167,9 @@ END(__strcpy_chk)
|
||||
#define MEMCPY_BASE_ALIGNED __strcpy_chk_memcpy_base_aligned
|
||||
#include "memcpy_base.S"
|
||||
|
||||
ENTRY_PRIVATE(__strcpy_chk_fail)
|
||||
ENTRY(__strcpy_chk_fail)
|
||||
.cfi_startproc
|
||||
|
||||
.save {r0, lr}
|
||||
.cfi_def_cfa_offset 8
|
||||
.cfi_rel_offset r0, 0
|
||||
@@ -180,8 +185,10 @@ error_code:
|
||||
.word BIONIC_EVENT_STRCPY_BUFFER_OVERFLOW
|
||||
error_message:
|
||||
.word error_string-(1b+4)
|
||||
|
||||
.cfi_endproc
|
||||
END(__strcpy_chk_fail)
|
||||
|
||||
.data
|
||||
error_string:
|
||||
.string "strcpy: prevented write past end of buffer"
|
||||
.string "strcpy buffer overflow"
|
||||
|
||||
@@ -26,8 +26,8 @@
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <private/bionic_asm.h>
|
||||
#include <private/libc_events.h>
|
||||
#include <machine/asm.h>
|
||||
#include "libc_events.h"
|
||||
|
||||
/*
|
||||
* This code assumes it is running on a processor that supports all arm v7
|
||||
@@ -41,13 +41,17 @@
|
||||
.thumb_func
|
||||
|
||||
ENTRY(__memcpy_chk)
|
||||
.cfi_startproc
|
||||
cmp r2, r3
|
||||
bhi __memcpy_chk_fail
|
||||
|
||||
// Fall through to memcpy...
|
||||
.cfi_endproc
|
||||
END(__memcpy_chk)
|
||||
|
||||
ENTRY(memcpy)
|
||||
.cfi_startproc
|
||||
|
||||
pld [r1, #0]
|
||||
stmfd sp!, {r0, lr}
|
||||
.save {r0, lr}
|
||||
@@ -55,13 +59,16 @@ ENTRY(memcpy)
|
||||
.cfi_rel_offset r0, 0
|
||||
.cfi_rel_offset lr, 4
|
||||
pld [r1, #64]
|
||||
|
||||
.cfi_endproc
|
||||
END(memcpy)
|
||||
|
||||
#define MEMCPY_BASE __memcpy_base
|
||||
#define MEMCPY_BASE_ALIGNED __memcpy_base_aligned
|
||||
#include "memcpy_base.S"
|
||||
|
||||
ENTRY_PRIVATE(__memcpy_chk_fail)
|
||||
ENTRY(__memcpy_chk_fail)
|
||||
.cfi_startproc
|
||||
// Preserve lr for backtrace.
|
||||
push {lr}
|
||||
.save {lr}
|
||||
@@ -77,8 +84,9 @@ error_code:
|
||||
.word BIONIC_EVENT_MEMCPY_BUFFER_OVERFLOW
|
||||
error_message:
|
||||
.word error_string-(1b+4)
|
||||
.cfi_endproc
|
||||
END(__memcpy_chk_fail)
|
||||
|
||||
.data
|
||||
error_string:
|
||||
.string "memcpy: prevented write past end of buffer"
|
||||
.string "memcpy buffer overflow"
|
||||
|
||||
@@ -32,7 +32,8 @@
|
||||
* cache line.
|
||||
*/
|
||||
|
||||
ENTRY_PRIVATE(MEMCPY_BASE)
|
||||
ENTRY(MEMCPY_BASE)
|
||||
.cfi_startproc
|
||||
.save {r0, lr}
|
||||
.cfi_def_cfa_offset 8
|
||||
.cfi_rel_offset r0, 0
|
||||
@@ -136,9 +137,13 @@ ENTRY_PRIVATE(MEMCPY_BASE)
|
||||
|
||||
ldmfd sp!, {r0, lr}
|
||||
bx lr
|
||||
|
||||
.cfi_endproc
|
||||
END(MEMCPY_BASE)
|
||||
|
||||
ENTRY_PRIVATE(MEMCPY_BASE_ALIGNED)
|
||||
ENTRY(MEMCPY_BASE_ALIGNED)
|
||||
.cfi_startproc
|
||||
|
||||
.save {r0, lr}
|
||||
.cfi_def_cfa_offset 8
|
||||
.cfi_rel_offset r0, 0
|
||||
@@ -223,4 +228,6 @@ ENTRY_PRIVATE(MEMCPY_BASE_ALIGNED)
|
||||
6:
|
||||
ldmfd sp!, {r4-r8}
|
||||
ldmfd sp!, {r0, pc}
|
||||
|
||||
.cfi_endproc
|
||||
END(MEMCPY_BASE_ALIGNED)
|
||||
|
||||
@@ -26,8 +26,9 @@
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <private/bionic_asm.h>
|
||||
#include <private/libc_events.h>
|
||||
#include <machine/cpu-features.h>
|
||||
#include <machine/asm.h>
|
||||
#include "libc_events.h"
|
||||
|
||||
/*
|
||||
* This code assumes it is running on a processor that supports all arm v7
|
||||
@@ -37,6 +38,7 @@
|
||||
.fpu neon
|
||||
|
||||
ENTRY(__memset_chk)
|
||||
.cfi_startproc
|
||||
cmp r2, r3
|
||||
bls .L_done
|
||||
|
||||
@@ -55,19 +57,25 @@ error_code:
|
||||
.word BIONIC_EVENT_MEMSET_BUFFER_OVERFLOW
|
||||
error_message:
|
||||
.word error_string-(1b+8)
|
||||
|
||||
.cfi_endproc
|
||||
END(__memset_chk)
|
||||
|
||||
ENTRY(bzero)
|
||||
.cfi_startproc
|
||||
mov r2, r1
|
||||
mov r1, #0
|
||||
|
||||
.L_done:
|
||||
// Fall through to memset...
|
||||
.cfi_endproc
|
||||
END(bzero)
|
||||
|
||||
/* memset() returns its first argument. */
|
||||
ENTRY(memset)
|
||||
// The neon memset only wins for less than 132.
|
||||
.cfi_startproc
|
||||
|
||||
# The neon memset only wins for less than 132.
|
||||
cmp r2, #132
|
||||
bhi __memset_large_copy
|
||||
|
||||
@@ -107,9 +115,13 @@ ENTRY(memset)
|
||||
strcsb r1, [r0], #1
|
||||
ldmfd sp!, {r0}
|
||||
bx lr
|
||||
|
||||
.cfi_endproc
|
||||
END(memset)
|
||||
|
||||
ENTRY_PRIVATE(__memset_large_copy)
|
||||
ENTRY(__memset_large_copy)
|
||||
.cfi_startproc
|
||||
|
||||
/* compute the offset to align the destination
|
||||
* offset = (4-(src&3))&3 = -src & 3
|
||||
*/
|
||||
@@ -184,8 +196,9 @@ ENTRY_PRIVATE(__memset_large_copy)
|
||||
strcsb r1, [r0]
|
||||
ldmfd sp!, {r0, r4-r7, lr}
|
||||
bx lr
|
||||
.cfi_endproc
|
||||
END(__memset_large_copy)
|
||||
|
||||
.data
|
||||
error_string:
|
||||
.string "memset: prevented write past end of buffer"
|
||||
.string "memset buffer overflow"
|
||||
|
||||
@@ -53,7 +53,7 @@
|
||||
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <private/bionic_asm.h>
|
||||
#include <machine/asm.h>
|
||||
|
||||
.syntax unified
|
||||
|
||||
|
||||
@@ -27,7 +27,7 @@
|
||||
*/
|
||||
|
||||
#include <machine/cpu-features.h>
|
||||
#include <private/bionic_asm.h>
|
||||
#include <machine/asm.h>
|
||||
|
||||
#ifdef __ARMEB__
|
||||
#define S2LOMEM lsl
|
||||
@@ -145,8 +145,19 @@ ENTRY(strcmp)
|
||||
|
||||
.macro magic_find_zero_bytes w1
|
||||
/* Macro to find all-zero bytes in w1, result is in ip. */
|
||||
#if (defined (__ARM_FEATURE_DSP))
|
||||
uadd8 ip, \w1, r6
|
||||
sel ip, r7, r6
|
||||
#else /* not defined (__ARM_FEATURE_DSP) */
|
||||
/* __ARM_FEATURE_DSP is not defined for some Cortex-M processors.
|
||||
Coincidently, these processors only have Thumb-2 mode, where we can use the
|
||||
the (large) magic constant available directly as an immediate in instructions.
|
||||
Note that we cannot use the magic constant in ARM mode, where we need
|
||||
to create the constant in a register. */
|
||||
sub ip, \w1, #0x01010101
|
||||
bic ip, ip, \w1
|
||||
and ip, ip, #0x80808080
|
||||
#endif /* not defined (__ARM_FEATURE_DSP) */
|
||||
.endm /* magic_find_zero_bytes */
|
||||
|
||||
.macro setup_return w1 w2
|
||||
@@ -159,6 +170,7 @@ ENTRY(strcmp)
|
||||
#endif /* not __ARMEB__ */
|
||||
.endm /* setup_return */
|
||||
|
||||
.cfi_startproc
|
||||
pld [r0, #0]
|
||||
pld [r1, #0]
|
||||
|
||||
@@ -546,4 +558,5 @@ ENTRY(strcmp)
|
||||
adds sp, sp, #16
|
||||
|
||||
bx lr
|
||||
.cfi_endproc
|
||||
END(strcmp)
|
||||
|
||||
@@ -53,7 +53,7 @@
|
||||
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <private/bionic_asm.h>
|
||||
#include <machine/asm.h>
|
||||
|
||||
.syntax unified
|
||||
|
||||
|
||||
@@ -53,7 +53,7 @@
|
||||
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <private/bionic_asm.h>
|
||||
#include <machine/asm.h>
|
||||
|
||||
.syntax unified
|
||||
|
||||
|
||||
@@ -1,9 +1,10 @@
|
||||
libc_bionic_src_files_arm += \
|
||||
arch-arm/cortex-a9/bionic/memcpy.S \
|
||||
arch-arm/cortex-a9/bionic/memset.S \
|
||||
arch-arm/cortex-a9/bionic/strcat.S \
|
||||
arch-arm/cortex-a9/bionic/strcmp.S \
|
||||
arch-arm/cortex-a9/bionic/strcpy.S \
|
||||
arch-arm/cortex-a9/bionic/strlen.S \
|
||||
arch-arm/cortex-a9/bionic/__strcat_chk.S \
|
||||
arch-arm/cortex-a9/bionic/__strcpy_chk.S \
|
||||
$(call libc-add-cpu-variant-src,MEMCPY,arch-arm/cortex-a9/bionic/memcpy.S)
|
||||
$(call libc-add-cpu-variant-src,MEMSET,arch-arm/cortex-a9/bionic/memset.S)
|
||||
$(call libc-add-cpu-variant-src,STRCAT,arch-arm/cortex-a9/bionic/strcat.S)
|
||||
$(call libc-add-cpu-variant-src,STRCMP,arch-arm/cortex-a9/bionic/strcmp.S)
|
||||
$(call libc-add-cpu-variant-src,STRCPY,arch-arm/cortex-a9/bionic/strcpy.S)
|
||||
$(call libc-add-cpu-variant-src,STRLEN,arch-arm/cortex-a9/bionic/strlen.S)
|
||||
$(call libc-add-cpu-variant-src,__STRCAT_CHK,arch-arm/cortex-a9/bionic/__strcat_chk.S)
|
||||
$(call libc-add-cpu-variant-src,__STRCPY_CHK,arch-arm/cortex-a9/bionic/__strcpy_chk.S)
|
||||
|
||||
include bionic/libc/arch-arm/generic/generic.mk
|
||||
|
||||
@@ -1,221 +0,0 @@
|
||||
/*
|
||||
* Copyright (C) 2013 The Android Open Source Project
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* * Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* * Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
||||
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <private/bionic_asm.h>
|
||||
#include <private/libc_events.h>
|
||||
|
||||
.syntax unified
|
||||
|
||||
.thumb
|
||||
.thumb_func
|
||||
|
||||
// Get the length of src string, then get the source of the dst string.
|
||||
// Check that the two lengths together don't exceed the threshold, then
|
||||
// do a memcpy of the data.
|
||||
ENTRY(__strcat_chk)
|
||||
pld [r0, #0]
|
||||
push {r0, lr}
|
||||
.save {r0, lr}
|
||||
.cfi_def_cfa_offset 8
|
||||
.cfi_rel_offset r0, 0
|
||||
.cfi_rel_offset lr, 4
|
||||
push {r4, r5}
|
||||
.save {r4, r5}
|
||||
.cfi_adjust_cfa_offset 8
|
||||
.cfi_rel_offset r4, 0
|
||||
.cfi_rel_offset r5, 4
|
||||
|
||||
mov lr, r2
|
||||
|
||||
// Save the dst register to r5
|
||||
mov r5, r0
|
||||
|
||||
// Zero out r4
|
||||
eor r4, r4, r4
|
||||
|
||||
// r1 contains the address of the string to count.
|
||||
.L_strlen_start:
|
||||
mov r0, r1
|
||||
ands r3, r1, #7
|
||||
beq .L_mainloop
|
||||
|
||||
// Align to a double word (64 bits).
|
||||
rsb r3, r3, #8
|
||||
lsls ip, r3, #31
|
||||
beq .L_align_to_32
|
||||
|
||||
ldrb r2, [r1], #1
|
||||
cbz r2, .L_update_count_and_finish
|
||||
|
||||
.L_align_to_32:
|
||||
bcc .L_align_to_64
|
||||
ands ip, r3, #2
|
||||
beq .L_align_to_64
|
||||
|
||||
ldrb r2, [r1], #1
|
||||
cbz r2, .L_update_count_and_finish
|
||||
ldrb r2, [r1], #1
|
||||
cbz r2, .L_update_count_and_finish
|
||||
|
||||
.L_align_to_64:
|
||||
tst r3, #4
|
||||
beq .L_mainloop
|
||||
ldr r3, [r1], #4
|
||||
|
||||
sub ip, r3, #0x01010101
|
||||
bic ip, ip, r3
|
||||
ands ip, ip, #0x80808080
|
||||
bne .L_zero_in_second_register
|
||||
|
||||
.p2align 2
|
||||
.L_mainloop:
|
||||
ldrd r2, r3, [r1], #8
|
||||
|
||||
pld [r1, #64]
|
||||
|
||||
sub ip, r2, #0x01010101
|
||||
bic ip, ip, r2
|
||||
ands ip, ip, #0x80808080
|
||||
bne .L_zero_in_first_register
|
||||
|
||||
sub ip, r3, #0x01010101
|
||||
bic ip, ip, r3
|
||||
ands ip, ip, #0x80808080
|
||||
bne .L_zero_in_second_register
|
||||
b .L_mainloop
|
||||
|
||||
.L_update_count_and_finish:
|
||||
sub r3, r1, r0
|
||||
sub r3, r3, #1
|
||||
b .L_finish
|
||||
|
||||
.L_zero_in_first_register:
|
||||
sub r3, r1, r0
|
||||
lsls r2, ip, #17
|
||||
bne .L_sub8_and_finish
|
||||
bcs .L_sub7_and_finish
|
||||
lsls ip, ip, #1
|
||||
bne .L_sub6_and_finish
|
||||
|
||||
sub r3, r3, #5
|
||||
b .L_finish
|
||||
|
||||
.L_sub8_and_finish:
|
||||
sub r3, r3, #8
|
||||
b .L_finish
|
||||
|
||||
.L_sub7_and_finish:
|
||||
sub r3, r3, #7
|
||||
b .L_finish
|
||||
|
||||
.L_sub6_and_finish:
|
||||
sub r3, r3, #6
|
||||
b .L_finish
|
||||
|
||||
.L_zero_in_second_register:
|
||||
sub r3, r1, r0
|
||||
lsls r2, ip, #17
|
||||
bne .L_sub4_and_finish
|
||||
bcs .L_sub3_and_finish
|
||||
lsls ip, ip, #1
|
||||
bne .L_sub2_and_finish
|
||||
|
||||
sub r3, r3, #1
|
||||
b .L_finish
|
||||
|
||||
.L_sub4_and_finish:
|
||||
sub r3, r3, #4
|
||||
b .L_finish
|
||||
|
||||
.L_sub3_and_finish:
|
||||
sub r3, r3, #3
|
||||
b .L_finish
|
||||
|
||||
.L_sub2_and_finish:
|
||||
sub r3, r3, #2
|
||||
|
||||
.L_finish:
|
||||
cmp r4, #0
|
||||
bne .L_strlen_done
|
||||
|
||||
// Time to get the dst string length.
|
||||
mov r1, r5
|
||||
|
||||
// Save the original source address to r5.
|
||||
mov r5, r0
|
||||
|
||||
// Save the current length (adding 1 for the terminator).
|
||||
add r4, r3, #1
|
||||
b .L_strlen_start
|
||||
|
||||
// r0 holds the pointer to the dst string.
|
||||
// r3 holds the dst string length.
|
||||
// r4 holds the src string length + 1.
|
||||
.L_strlen_done:
|
||||
add r2, r3, r4
|
||||
cmp r2, lr
|
||||
bhi __strcat_chk_failed
|
||||
|
||||
// Set up the registers for the memcpy code.
|
||||
mov r1, r5
|
||||
pld [r1, #64]
|
||||
mov r2, r4
|
||||
add r0, r0, r3
|
||||
pop {r4, r5}
|
||||
END(__strcat_chk)
|
||||
|
||||
#define MEMCPY_BASE __strcat_chk_memcpy_base
|
||||
#define MEMCPY_BASE_ALIGNED __strcat_chk_memcpy_base_aligned
|
||||
|
||||
#include "memcpy_base.S"
|
||||
|
||||
ENTRY_PRIVATE(__strcat_chk_failed)
|
||||
.save {r0, lr}
|
||||
.save {r4, r5}
|
||||
|
||||
.cfi_def_cfa_offset 8
|
||||
.cfi_rel_offset r0, 0
|
||||
.cfi_rel_offset lr, 4
|
||||
.cfi_adjust_cfa_offset 8
|
||||
.cfi_rel_offset r4, 0
|
||||
.cfi_rel_offset r5, 4
|
||||
|
||||
ldr r0, error_message
|
||||
ldr r1, error_code
|
||||
1:
|
||||
add r0, pc
|
||||
bl __fortify_chk_fail
|
||||
error_code:
|
||||
.word BIONIC_EVENT_STRCAT_BUFFER_OVERFLOW
|
||||
error_message:
|
||||
.word error_string-(1b+4)
|
||||
END(__strcat_chk_failed)
|
||||
|
||||
.data
|
||||
error_string:
|
||||
.string "strcat: prevented write past end of buffer"
|
||||
@@ -1,182 +0,0 @@
|
||||
/*
|
||||
* Copyright (C) 2013 The Android Open Source Project
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* * Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* * Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
||||
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <private/bionic_asm.h>
|
||||
#include <private/libc_events.h>
|
||||
|
||||
.syntax unified
|
||||
|
||||
.thumb
|
||||
.thumb_func
|
||||
|
||||
// Get the length of the source string first, then do a memcpy of the data
|
||||
// instead of a strcpy.
|
||||
ENTRY(__strcpy_chk)
|
||||
pld [r0, #0]
|
||||
push {r0, lr}
|
||||
.save {r0, lr}
|
||||
.cfi_def_cfa_offset 8
|
||||
.cfi_rel_offset r0, 0
|
||||
.cfi_rel_offset lr, 4
|
||||
|
||||
mov lr, r2
|
||||
mov r0, r1
|
||||
|
||||
ands r3, r1, #7
|
||||
beq .L_mainloop
|
||||
|
||||
// Align to a double word (64 bits).
|
||||
rsb r3, r3, #8
|
||||
lsls ip, r3, #31
|
||||
beq .L_align_to_32
|
||||
|
||||
ldrb r2, [r0], #1
|
||||
cbz r2, .L_update_count_and_finish
|
||||
|
||||
.L_align_to_32:
|
||||
bcc .L_align_to_64
|
||||
ands ip, r3, #2
|
||||
beq .L_align_to_64
|
||||
|
||||
ldrb r2, [r0], #1
|
||||
cbz r2, .L_update_count_and_finish
|
||||
ldrb r2, [r0], #1
|
||||
cbz r2, .L_update_count_and_finish
|
||||
|
||||
.L_align_to_64:
|
||||
tst r3, #4
|
||||
beq .L_mainloop
|
||||
ldr r3, [r0], #4
|
||||
|
||||
sub ip, r3, #0x01010101
|
||||
bic ip, ip, r3
|
||||
ands ip, ip, #0x80808080
|
||||
bne .L_zero_in_second_register
|
||||
|
||||
.p2align 2
|
||||
.L_mainloop:
|
||||
ldrd r2, r3, [r0], #8
|
||||
|
||||
pld [r0, #64]
|
||||
|
||||
sub ip, r2, #0x01010101
|
||||
bic ip, ip, r2
|
||||
ands ip, ip, #0x80808080
|
||||
bne .L_zero_in_first_register
|
||||
|
||||
sub ip, r3, #0x01010101
|
||||
bic ip, ip, r3
|
||||
ands ip, ip, #0x80808080
|
||||
bne .L_zero_in_second_register
|
||||
b .L_mainloop
|
||||
|
||||
.L_update_count_and_finish:
|
||||
sub r3, r0, r1
|
||||
sub r3, r3, #1
|
||||
b .L_check_size
|
||||
|
||||
.L_zero_in_first_register:
|
||||
sub r3, r0, r1
|
||||
lsls r2, ip, #17
|
||||
bne .L_sub8_and_finish
|
||||
bcs .L_sub7_and_finish
|
||||
lsls ip, ip, #1
|
||||
bne .L_sub6_and_finish
|
||||
|
||||
sub r3, r3, #5
|
||||
b .L_check_size
|
||||
|
||||
.L_sub8_and_finish:
|
||||
sub r3, r3, #8
|
||||
b .L_check_size
|
||||
|
||||
.L_sub7_and_finish:
|
||||
sub r3, r3, #7
|
||||
b .L_check_size
|
||||
|
||||
.L_sub6_and_finish:
|
||||
sub r3, r3, #6
|
||||
b .L_check_size
|
||||
|
||||
.L_zero_in_second_register:
|
||||
sub r3, r0, r1
|
||||
lsls r2, ip, #17
|
||||
bne .L_sub4_and_finish
|
||||
bcs .L_sub3_and_finish
|
||||
lsls ip, ip, #1
|
||||
bne .L_sub2_and_finish
|
||||
|
||||
sub r3, r3, #1
|
||||
b .L_check_size
|
||||
|
||||
.L_sub4_and_finish:
|
||||
sub r3, r3, #4
|
||||
b .L_check_size
|
||||
|
||||
.L_sub3_and_finish:
|
||||
sub r3, r3, #3
|
||||
b .L_check_size
|
||||
|
||||
.L_sub2_and_finish:
|
||||
sub r3, r3, #2
|
||||
|
||||
.L_check_size:
|
||||
pld [r1, #0]
|
||||
pld [r1, #64]
|
||||
ldr r0, [sp]
|
||||
cmp r3, lr
|
||||
bhs __strcpy_chk_failed
|
||||
|
||||
// Add 1 for copy length to get the string terminator.
|
||||
add r2, r3, #1
|
||||
END(__strcpy_chk)
|
||||
|
||||
#define MEMCPY_BASE __strcpy_chk_memcpy_base
|
||||
#define MEMCPY_BASE_ALIGNED __strcpy_chk_memcpy_base_aligned
|
||||
#include "memcpy_base.S"
|
||||
|
||||
ENTRY_PRIVATE(__strcpy_chk_failed)
|
||||
.save {r0, lr}
|
||||
.cfi_def_cfa_offset 8
|
||||
.cfi_rel_offset r0, 0
|
||||
.cfi_rel_offset lr, 4
|
||||
|
||||
ldr r0, error_message
|
||||
ldr r1, error_code
|
||||
1:
|
||||
add r0, pc
|
||||
bl __fortify_chk_fail
|
||||
error_code:
|
||||
.word BIONIC_EVENT_STRCPY_BUFFER_OVERFLOW
|
||||
error_message:
|
||||
.word error_string-(1b+4)
|
||||
END(__strcpy_chk_failed)
|
||||
|
||||
.data
|
||||
error_string:
|
||||
.string "strcpy: prevented write past end of buffer"
|
||||
@@ -1,105 +0,0 @@
|
||||
/*
|
||||
* Copyright (C) 2008 The Android Open Source Project
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* * Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* * Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
||||
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
/*
|
||||
* Copyright (c) 2013 ARM Ltd
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. The name of the company may not be used to endorse or promote
|
||||
* products derived from this software without specific prior written
|
||||
* permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR IMPLIED
|
||||
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
||||
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
|
||||
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
||||
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
||||
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
||||
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
||||
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
// Prototype: void *memcpy (void *dst, const void *src, size_t count).
|
||||
|
||||
#include <private/bionic_asm.h>
|
||||
#include <private/libc_events.h>
|
||||
|
||||
.text
|
||||
.syntax unified
|
||||
.fpu neon
|
||||
|
||||
ENTRY(__memcpy_chk)
|
||||
cmp r2, r3
|
||||
bhi __memcpy_chk_fail
|
||||
|
||||
// Fall through to memcpy...
|
||||
END(__memcpy_chk)
|
||||
|
||||
ENTRY(memcpy)
|
||||
pld [r1, #64]
|
||||
push {r0, lr}
|
||||
.save {r0, lr}
|
||||
.cfi_def_cfa_offset 8
|
||||
.cfi_rel_offset r0, 0
|
||||
.cfi_rel_offset lr, 4
|
||||
END(memcpy)
|
||||
|
||||
#define MEMCPY_BASE __memcpy_base
|
||||
#define MEMCPY_BASE_ALIGNED __memcpy_base_aligned
|
||||
#include "memcpy_base.S"
|
||||
|
||||
ENTRY_PRIVATE(__memcpy_chk_fail)
|
||||
// Preserve lr for backtrace.
|
||||
push {lr}
|
||||
.save {lr}
|
||||
.cfi_def_cfa_offset 4
|
||||
.cfi_rel_offset lr, 0
|
||||
|
||||
ldr r0, error_message
|
||||
ldr r1, error_code
|
||||
1:
|
||||
add r0, pc
|
||||
bl __fortify_chk_fail
|
||||
error_code:
|
||||
.word BIONIC_EVENT_MEMCPY_BUFFER_OVERFLOW
|
||||
error_message:
|
||||
.word error_string-(1b+8)
|
||||
END(__memcpy_chk_fail)
|
||||
|
||||
.data
|
||||
error_string:
|
||||
.string "memcpy: prevented write past end of buffer"
|
||||
@@ -1,234 +0,0 @@
|
||||
/*
|
||||
* Copyright (C) 2008 The Android Open Source Project
|
||||
* All rights reserved.
|
||||
* Copyright (c) 2013-2014, NVIDIA Corporation. All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* * Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* * Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
||||
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#define CACHE_LINE_SIZE (64)
|
||||
#define PREFETCH_DISTANCE (CACHE_LINE_SIZE*6)
|
||||
|
||||
ENTRY_PRIVATE(MEMCPY_BASE)
|
||||
.cfi_def_cfa_offset 8
|
||||
.cfi_rel_offset r0, 0
|
||||
.cfi_rel_offset lr, 4
|
||||
|
||||
cmp r2, #0
|
||||
beq .L_memcpy_done
|
||||
cmp r0, r1
|
||||
beq .L_memcpy_done
|
||||
|
||||
/* preload next cache line */
|
||||
pld [r1, #CACHE_LINE_SIZE*1]
|
||||
|
||||
/* Deal with very small blocks (< 32bytes) asap */
|
||||
cmp r2, #32
|
||||
blo .L_memcpy_lt_32bytes
|
||||
/* no need to align if len < 128 bytes */
|
||||
cmp r2, #128
|
||||
blo .L_memcpy_lt_128bytes
|
||||
|
||||
/* large copy, align dest to 64 byte boundry */
|
||||
pld [r1, #CACHE_LINE_SIZE*2]
|
||||
rsb r3, r0, #0
|
||||
ands r3, r3, #0x3F
|
||||
pld [r1, #CACHE_LINE_SIZE*3]
|
||||
beq .L_memcpy_dispatch
|
||||
sub r2, r2, r3
|
||||
/* copy 1 byte */
|
||||
movs ip, r3, lsl #31
|
||||
itt mi
|
||||
ldrbmi ip, [r1], #1
|
||||
strbmi ip, [r0], #1
|
||||
/* copy 2 bytes */
|
||||
itt cs
|
||||
ldrhcs ip, [r1], #2
|
||||
strhcs ip, [r0], #2
|
||||
/* copy 4 bytes */
|
||||
movs ip, r3, lsl #29
|
||||
itt mi
|
||||
ldrmi ip, [r1], #4
|
||||
strmi ip, [r0], #4
|
||||
/* copy 8 bytes */
|
||||
bcc 1f
|
||||
vld1.8 {d0}, [r1]!
|
||||
vst1.8 {d0}, [r0, :64]!
|
||||
1: /* copy 16 bytes */
|
||||
movs ip, r3, lsl #27
|
||||
bpl 1f
|
||||
vld1.8 {q0}, [r1]!
|
||||
vst1.8 {q0}, [r0, :128]!
|
||||
1: /* copy 32 bytes */
|
||||
bcc .L_memcpy_dispatch
|
||||
vld1.8 {q0, q1}, [r1]!
|
||||
vst1.8 {q0, q1}, [r0, :256]!
|
||||
|
||||
.L_memcpy_dispatch:
|
||||
// pre-decrement by 128 to detect nearly-done condition easily, but
|
||||
// also need to check if we have less than 128 bytes left at this
|
||||
// point due to alignment code above
|
||||
subs r2, r2, #128
|
||||
blo .L_memcpy_lt_128presub
|
||||
|
||||
// Denver does better if both source and dest are aligned so
|
||||
// we'll special-case that even though the code is virually identical
|
||||
tst r1, #0xF
|
||||
bne .L_memcpy_neon_unalign_src_pld
|
||||
|
||||
// DRAM memcpy should be throttled slightly to get full bandwidth
|
||||
//
|
||||
cmp r2, #32768
|
||||
bhi .L_memcpy_neon_unalign_src_pld
|
||||
.align 4
|
||||
1:
|
||||
/* copy 128 bytes in each loop */
|
||||
subs r2, r2, #128
|
||||
|
||||
/* preload a cache line */
|
||||
pld [r1, #PREFETCH_DISTANCE]
|
||||
/* copy a cache line */
|
||||
vld1.8 {q0, q1}, [r1, :128]!
|
||||
vst1.8 {q0, q1}, [r0, :256]!
|
||||
vld1.8 {q0, q1}, [r1, :128]!
|
||||
vst1.8 {q0, q1}, [r0, :256]!
|
||||
/* preload a cache line */
|
||||
pld [r1, #PREFETCH_DISTANCE]
|
||||
/* copy a cache line */
|
||||
vld1.8 {q0, q1}, [r1, :128]!
|
||||
vst1.8 {q0, q1}, [r0, :256]!
|
||||
vld1.8 {q0, q1}, [r1, :128]!
|
||||
vst1.8 {q0, q1}, [r0, :256]!
|
||||
|
||||
bhs 1b
|
||||
adds r2, r2, #128
|
||||
bne .L_memcpy_lt_128bytes_align
|
||||
pop {r0, pc}
|
||||
|
||||
.align 4
|
||||
.L_memcpy_neon_unalign_src_pld:
|
||||
1:
|
||||
/* copy 128 bytes in each loop */
|
||||
subs r2, r2, #128
|
||||
|
||||
/* preload a cache line */
|
||||
pld [r1, #PREFETCH_DISTANCE]
|
||||
/* copy a cache line */
|
||||
vld1.8 {q0, q1}, [r1]!
|
||||
vst1.8 {q0, q1}, [r0, :256]!
|
||||
vld1.8 {q0, q1}, [r1]!
|
||||
vst1.8 {q0, q1}, [r0, :256]!
|
||||
/* preload a cache line */
|
||||
pld [r1, #PREFETCH_DISTANCE]
|
||||
/* copy a cache line */
|
||||
vld1.8 {q0, q1}, [r1]!
|
||||
vst1.8 {q0, q1}, [r0, :256]!
|
||||
vld1.8 {q0, q1}, [r1]!
|
||||
vst1.8 {q0, q1}, [r0, :256]!
|
||||
|
||||
bhs 1b
|
||||
adds r2, r2, #128
|
||||
bne .L_memcpy_lt_128bytes_align
|
||||
pop {r0, pc}
|
||||
|
||||
.L_memcpy_lt_128presub:
|
||||
add r2, r2, #128
|
||||
.L_memcpy_lt_128bytes_align:
|
||||
/* copy 64 bytes */
|
||||
movs ip, r2, lsl #26
|
||||
bcc 1f
|
||||
vld1.8 {q0, q1}, [r1]!
|
||||
vst1.8 {q0, q1}, [r0, :256]!
|
||||
vld1.8 {q0, q1}, [r1]!
|
||||
vst1.8 {q0, q1}, [r0, :256]!
|
||||
1: /* copy 32 bytes */
|
||||
bpl 1f
|
||||
vld1.8 {q0, q1}, [r1]!
|
||||
vst1.8 {q0, q1}, [r0, :256]!
|
||||
1: /* copy 16 bytes */
|
||||
movs ip, r2, lsl #28
|
||||
bcc 1f
|
||||
vld1.8 {q0}, [r1]!
|
||||
vst1.8 {q0}, [r0, :128]!
|
||||
1: /* copy 8 bytes */
|
||||
bpl 1f
|
||||
vld1.8 {d0}, [r1]!
|
||||
vst1.8 {d0}, [r0, :64]!
|
||||
1: /* copy 4 bytes */
|
||||
tst r2, #4
|
||||
itt ne
|
||||
ldrne ip, [r1], #4
|
||||
strne ip, [r0], #4
|
||||
/* copy 2 bytes */
|
||||
movs ip, r2, lsl #31
|
||||
itt cs
|
||||
ldrhcs ip, [r1], #2
|
||||
strhcs ip, [r0], #2
|
||||
/* copy 1 byte */
|
||||
itt mi
|
||||
ldrbmi ip, [r1]
|
||||
strbmi ip, [r0]
|
||||
|
||||
pop {r0, pc}
|
||||
|
||||
.L_memcpy_lt_128bytes:
|
||||
/* copy 64 bytes */
|
||||
movs ip, r2, lsl #26
|
||||
bcc 1f
|
||||
vld1.8 {q0, q1}, [r1]!
|
||||
vst1.8 {q0, q1}, [r0]!
|
||||
vld1.8 {q0, q1}, [r1]!
|
||||
vst1.8 {q0, q1}, [r0]!
|
||||
1: /* copy 32 bytes */
|
||||
bpl .L_memcpy_lt_32bytes
|
||||
vld1.8 {q0, q1}, [r1]!
|
||||
vst1.8 {q0, q1}, [r0]!
|
||||
.L_memcpy_lt_32bytes:
|
||||
/* copy 16 bytes */
|
||||
movs ip, r2, lsl #28
|
||||
bcc 1f
|
||||
vld1.8 {q0}, [r1]!
|
||||
vst1.8 {q0}, [r0]!
|
||||
1: /* copy 8 bytes */
|
||||
bpl 1f
|
||||
vld1.8 {d0}, [r1]!
|
||||
vst1.8 {d0}, [r0]!
|
||||
1: /* copy 4 bytes */
|
||||
tst r2, #4
|
||||
itt ne
|
||||
ldrne ip, [r1], #4
|
||||
strne ip, [r0], #4
|
||||
/* copy 2 bytes */
|
||||
movs ip, r2, lsl #31
|
||||
itt cs
|
||||
ldrhcs ip, [r1], #2
|
||||
strhcs ip, [r0], #2
|
||||
/* copy 1 byte */
|
||||
itt mi
|
||||
ldrbmi ip, [r1]
|
||||
strbmi ip, [r0]
|
||||
|
||||
.L_memcpy_done:
|
||||
pop {r0, pc}
|
||||
END(MEMCPY_BASE)
|
||||
@@ -1,207 +0,0 @@
|
||||
/*
|
||||
* Copyright (C) 2013 The Android Open Source Project
|
||||
* Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved.
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* * Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* * Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
||||
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <machine/cpu-features.h>
|
||||
#include <private/bionic_asm.h>
|
||||
#include <private/libc_events.h>
|
||||
|
||||
/*
|
||||
* Optimized memset() for ARM.
|
||||
*
|
||||
* memset() returns its first argument.
|
||||
*/
|
||||
|
||||
.fpu neon
|
||||
.syntax unified
|
||||
|
||||
ENTRY(__memset_chk)
|
||||
cmp r2, r3
|
||||
bls .L_done
|
||||
|
||||
// Preserve lr for backtrace.
|
||||
push {lr}
|
||||
.cfi_def_cfa_offset 4
|
||||
.cfi_rel_offset lr, 0
|
||||
|
||||
|
||||
ldr r0, error_message
|
||||
ldr r1, error_code
|
||||
1:
|
||||
add r0, pc
|
||||
bl __fortify_chk_fail
|
||||
error_code:
|
||||
.word BIONIC_EVENT_MEMSET_BUFFER_OVERFLOW
|
||||
error_message:
|
||||
.word error_string-(1b+8)
|
||||
END(__memset_chk)
|
||||
|
||||
ENTRY(bzero)
|
||||
mov r2, r1
|
||||
mov r1, #0
|
||||
.L_done:
|
||||
// Fall through to memset...
|
||||
END(bzero)
|
||||
|
||||
ENTRY(memset)
|
||||
pldw [r0]
|
||||
mov r3, r0
|
||||
|
||||
// Duplicate the low byte of r1
|
||||
mov r1, r1, lsl #24
|
||||
orr r1, r1, r1, lsr #8
|
||||
orr r1, r1, r1, lsr #16
|
||||
|
||||
cmp r2, #16
|
||||
blo .L_less_than_16
|
||||
|
||||
// This section handles regions 16 bytes or larger
|
||||
//
|
||||
// Use aligned vst1.8 and vstm when possible. Register values will be:
|
||||
// ip is scratch
|
||||
// q0, q1, and r1 contain the memset value
|
||||
// r2 is the number of bytes to set
|
||||
// r3 is the advancing destination pointer
|
||||
vdup.32 q0, r1
|
||||
|
||||
ands ip, r3, 0xF
|
||||
beq .L_memset_aligned
|
||||
|
||||
// Align dest pointer to 16-byte boundary.
|
||||
pldw [r0, #64]
|
||||
rsb ip, ip, #16
|
||||
|
||||
// Pre-adjust the byte count to reflect post-aligment value. Expecting
|
||||
// 8-byte alignment to be rather common so we special case that one.
|
||||
sub r2, r2, ip
|
||||
|
||||
/* set 1 byte */
|
||||
tst ip, #1
|
||||
it ne
|
||||
strbne r1, [r3], #1
|
||||
/* set 2 bytes */
|
||||
tst ip, #2
|
||||
it ne
|
||||
strhne r1, [r3], #2
|
||||
/* set 4 bytes */
|
||||
movs ip, ip, lsl #29
|
||||
it mi
|
||||
strmi r1, [r3], #4
|
||||
/* set 8 bytes */
|
||||
itt cs
|
||||
strcs r1, [r3], #4
|
||||
strcs r1, [r3], #4
|
||||
|
||||
.L_memset_aligned:
|
||||
// Destination is now 16-byte aligned. Determine how to handle
|
||||
// remaining bytes.
|
||||
vmov q1, q0
|
||||
cmp r2, #128
|
||||
blo .L_less_than_128
|
||||
|
||||
// We need to set a larger block of memory. Use four Q regs to
|
||||
// set a full cache line in one instruction. Pre-decrement
|
||||
// r2 to simplify end-of-loop detection
|
||||
vmov q2, q0
|
||||
vmov q3, q0
|
||||
pldw [r0, #128]
|
||||
sub r2, r2, #128
|
||||
.align 4
|
||||
.L_memset_loop_128:
|
||||
pldw [r3, #192]
|
||||
vstm r3!, {q0, q1, q2, q3}
|
||||
vstm r3!, {q0, q1, q2, q3}
|
||||
subs r2, r2, #128
|
||||
bhs .L_memset_loop_128
|
||||
|
||||
// Un-bias r2 so it contains the number of bytes left. Early
|
||||
// exit if we are done.
|
||||
adds r2, r2, #128
|
||||
beq 2f
|
||||
|
||||
.align 4
|
||||
.L_less_than_128:
|
||||
// set 64 bytes
|
||||
movs ip, r2, lsl #26
|
||||
bcc 1f
|
||||
vst1.8 {q0, q1}, [r3, :128]!
|
||||
vst1.8 {q0, q1}, [r3, :128]!
|
||||
beq 2f
|
||||
1:
|
||||
// set 32 bytes
|
||||
bpl 1f
|
||||
vst1.8 {q0, q1}, [r3, :128]!
|
||||
1:
|
||||
// set 16 bytes
|
||||
movs ip, r2, lsl #28
|
||||
bcc 1f
|
||||
vst1.8 {q0}, [r3, :128]!
|
||||
beq 2f
|
||||
1:
|
||||
// set 8 bytes
|
||||
bpl 1f
|
||||
vst1.8 {d0}, [r3, :64]!
|
||||
1:
|
||||
// set 4 bytes
|
||||
tst r2, #4
|
||||
it ne
|
||||
strne r1, [r3], #4
|
||||
1:
|
||||
// set 2 bytes
|
||||
movs ip, r2, lsl #31
|
||||
it cs
|
||||
strhcs r1, [r3], #2
|
||||
// set 1 byte
|
||||
it mi
|
||||
strbmi r1, [r3]
|
||||
2:
|
||||
bx lr
|
||||
|
||||
.L_less_than_16:
|
||||
// Store up to 15 bytes without worrying about byte alignment
|
||||
movs ip, r2, lsl #29
|
||||
bcc 1f
|
||||
str r1, [r3], #4
|
||||
str r1, [r3], #4
|
||||
beq 2f
|
||||
1:
|
||||
it mi
|
||||
strmi r1, [r3], #4
|
||||
movs ip, r2, lsl #31
|
||||
it mi
|
||||
strbmi r1, [r3], #1
|
||||
itt cs
|
||||
strbcs r1, [r3], #1
|
||||
strbcs r1, [r3]
|
||||
2:
|
||||
bx lr
|
||||
END(memset)
|
||||
|
||||
.data
|
||||
error_string:
|
||||
.string "memset: prevented write past end of buffer"
|
||||
@@ -1,12 +0,0 @@
|
||||
libc_bionic_src_files_arm += \
|
||||
arch-arm/denver/bionic/memcpy.S \
|
||||
arch-arm/denver/bionic/memset.S \
|
||||
arch-arm/denver/bionic/__strcat_chk.S \
|
||||
arch-arm/denver/bionic/__strcpy_chk.S
|
||||
|
||||
# Use cortex-a15 versions of strcat/strcpy/strlen.
|
||||
libc_bionic_src_files_arm += \
|
||||
arch-arm/cortex-a15/bionic/strcat.S \
|
||||
arch-arm/cortex-a15/bionic/strcpy.S \
|
||||
arch-arm/cortex-a15/bionic/strlen.S \
|
||||
arch-arm/cortex-a15/bionic/strcmp.S
|
||||
@@ -27,8 +27,8 @@
|
||||
*/
|
||||
|
||||
#include <machine/cpu-features.h>
|
||||
#include <private/bionic_asm.h>
|
||||
#include <private/libc_events.h>
|
||||
#include <machine/asm.h>
|
||||
#include "libc_events.h"
|
||||
|
||||
/*
|
||||
* Optimized memcpy() for ARM.
|
||||
@@ -57,9 +57,9 @@ ENTRY(memcpy)
|
||||
|
||||
// preload the destination because we'll align it to a cache line
|
||||
// with small writes. Also start the source "pump".
|
||||
pld [r0, #0]
|
||||
pld [r1, #0]
|
||||
pld [r1, #32]
|
||||
PLD (r0, #0)
|
||||
PLD (r1, #0)
|
||||
PLD (r1, #32)
|
||||
|
||||
/* it simplifies things to take care of len<4 early */
|
||||
cmp r2, #4
|
||||
@@ -147,7 +147,7 @@ cached_aligned32:
|
||||
add r12, r12, #64
|
||||
|
||||
1: ldmia r1!, { r4-r11 }
|
||||
pld [r12, #64]
|
||||
PLD (r12, #64)
|
||||
subs r2, r2, #32
|
||||
|
||||
// NOTE: if r12 is more than 64 ahead of r1, the following ldrhi
|
||||
@@ -268,7 +268,7 @@ loop16:
|
||||
ldr r12, [r1], #4
|
||||
1: mov r4, r12
|
||||
ldmia r1!, { r5,r6,r7, r8,r9,r10,r11}
|
||||
pld [r1, #64]
|
||||
PLD (r1, #64)
|
||||
subs r2, r2, #32
|
||||
ldrhs r12, [r1], #4
|
||||
orr r3, r3, r4, lsl #16
|
||||
@@ -295,7 +295,7 @@ loop8:
|
||||
ldr r12, [r1], #4
|
||||
1: mov r4, r12
|
||||
ldmia r1!, { r5,r6,r7, r8,r9,r10,r11}
|
||||
pld [r1, #64]
|
||||
PLD (r1, #64)
|
||||
subs r2, r2, #32
|
||||
ldrhs r12, [r1], #4
|
||||
orr r3, r3, r4, lsl #24
|
||||
@@ -322,7 +322,7 @@ loop24:
|
||||
ldr r12, [r1], #4
|
||||
1: mov r4, r12
|
||||
ldmia r1!, { r5,r6,r7, r8,r9,r10,r11}
|
||||
pld [r1, #64]
|
||||
PLD (r1, #64)
|
||||
subs r2, r2, #32
|
||||
ldrhs r12, [r1], #4
|
||||
orr r3, r3, r4, lsl #8
|
||||
@@ -401,4 +401,4 @@ END(memcpy)
|
||||
|
||||
.data
|
||||
error_string:
|
||||
.string "memcpy: prevented write past end of buffer"
|
||||
.string "memcpy buffer overflow"
|
||||
|
||||
@@ -26,8 +26,8 @@
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <private/bionic_asm.h>
|
||||
#include <private/libc_events.h>
|
||||
#include <machine/asm.h>
|
||||
#include "libc_events.h"
|
||||
|
||||
/*
|
||||
* Optimized memset() for ARM.
|
||||
@@ -130,4 +130,4 @@ END(memset)
|
||||
|
||||
.data
|
||||
error_string:
|
||||
.string "memset: prevented write past end of buffer"
|
||||
.string "memset buffer overflow"
|
||||
|
||||
@@ -28,7 +28,7 @@
|
||||
*/
|
||||
|
||||
#include <machine/cpu-features.h>
|
||||
#include <private/bionic_asm.h>
|
||||
#include <machine/asm.h>
|
||||
|
||||
.text
|
||||
|
||||
@@ -52,8 +52,8 @@
|
||||
#define magic2(REG) REG, lsl #7
|
||||
|
||||
ENTRY(strcmp)
|
||||
pld [r0, #0]
|
||||
pld [r1, #0]
|
||||
PLD(r0, #0)
|
||||
PLD(r1, #0)
|
||||
eor r2, r0, r1
|
||||
tst r2, #3
|
||||
|
||||
@@ -88,8 +88,8 @@ ENTRY(strcmp)
|
||||
orr r4, r4, r4, lsl #16
|
||||
.p2align 2
|
||||
4:
|
||||
pld [r0, #8]
|
||||
pld [r1, #8]
|
||||
PLD(r0, #8)
|
||||
PLD(r1, #8)
|
||||
sub r2, ip, magic1(r4)
|
||||
cmp ip, r3
|
||||
itttt eq
|
||||
|
||||
@@ -30,10 +30,10 @@
|
||||
*/
|
||||
|
||||
#include <machine/cpu-features.h>
|
||||
#include <private/bionic_asm.h>
|
||||
#include <machine/asm.h>
|
||||
|
||||
ENTRY(strcpy)
|
||||
pld [r1, #0]
|
||||
PLD(r1, #0)
|
||||
eor r2, r0, r1
|
||||
mov ip, r0
|
||||
tst r2, #3
|
||||
@@ -62,7 +62,7 @@ ENTRY(strcpy)
|
||||
load stalls. */
|
||||
.p2align 2
|
||||
2:
|
||||
pld [r1, #8]
|
||||
PLD(r1, #8)
|
||||
ldr r4, [r1], #4
|
||||
sub r2, r3, r5
|
||||
bics r2, r2, r3
|
||||
|
||||
@@ -63,7 +63,9 @@ size_t strlen(const char *s)
|
||||
"ldr %[v], [%[s]], #4 \n"
|
||||
"sub %[l], %[l], %[s] \n"
|
||||
"0: \n"
|
||||
#if __ARM_HAVE_PLD
|
||||
"pld [%[s], #64] \n"
|
||||
#endif
|
||||
"sub %[t], %[v], %[mask], lsr #7\n"
|
||||
"and %[t], %[t], %[mask] \n"
|
||||
"bics %[t], %[t], %[v] \n"
|
||||
|
||||
@@ -1,9 +1,8 @@
|
||||
libc_bionic_src_files_arm += \
|
||||
arch-arm/generic/bionic/memcpy.S \
|
||||
arch-arm/generic/bionic/memset.S \
|
||||
arch-arm/generic/bionic/strcmp.S \
|
||||
arch-arm/generic/bionic/strcpy.S \
|
||||
arch-arm/generic/bionic/strlen.c \
|
||||
bionic/__strcat_chk.cpp \
|
||||
bionic/__strcpy_chk.cpp \
|
||||
upstream-openbsd/lib/libc/string/strcat.c \
|
||||
$(call libc-add-cpu-variant-src,MEMCPY,arch-arm/generic/bionic/memcpy.S)
|
||||
$(call libc-add-cpu-variant-src,MEMSET,arch-arm/generic/bionic/memset.S)
|
||||
$(call libc-add-cpu-variant-src,STRCAT,string/strcat.c)
|
||||
$(call libc-add-cpu-variant-src,STRCMP,arch-arm/generic/bionic/strcmp.S)
|
||||
$(call libc-add-cpu-variant-src,STRCPY,arch-arm/generic/bionic/strcpy.S)
|
||||
$(call libc-add-cpu-variant-src,STRLEN,arch-arm/generic/bionic/strlen.c)
|
||||
$(call libc-add-cpu-variant-src,__STRCAT_CHK,bionic/__strcat_chk.cpp)
|
||||
$(call libc-add-cpu-variant-src,__STRCPY_CHK,bionic/__strcpy_chk.cpp)
|
||||
|
||||
110
libc/arch-arm/include/machine/_types.h
Normal file
110
libc/arch-arm/include/machine/_types.h
Normal file
@@ -0,0 +1,110 @@
|
||||
/* $OpenBSD: _types.h,v 1.3 2006/02/14 18:12:58 miod Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 1990, 1993
|
||||
* The Regents of the University of California. All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)types.h 8.3 (Berkeley) 1/5/94
|
||||
* @(#)ansi.h 8.2 (Berkeley) 1/4/94
|
||||
*/
|
||||
|
||||
#ifndef _ARM__TYPES_H_
|
||||
#define _ARM__TYPES_H_
|
||||
|
||||
/* 7.18.1.1 Exact-width integer types */
|
||||
typedef __signed char __int8_t;
|
||||
typedef unsigned char __uint8_t;
|
||||
typedef short __int16_t;
|
||||
typedef unsigned short __uint16_t;
|
||||
typedef int __int32_t;
|
||||
typedef unsigned int __uint32_t;
|
||||
/* LONGLONG */
|
||||
typedef long long __int64_t;
|
||||
/* LONGLONG */
|
||||
typedef unsigned long long __uint64_t;
|
||||
|
||||
/* 7.18.1.2 Minimum-width integer types */
|
||||
typedef __int8_t __int_least8_t;
|
||||
typedef __uint8_t __uint_least8_t;
|
||||
typedef __int16_t __int_least16_t;
|
||||
typedef __uint16_t __uint_least16_t;
|
||||
typedef __int32_t __int_least32_t;
|
||||
typedef __uint32_t __uint_least32_t;
|
||||
typedef __int64_t __int_least64_t;
|
||||
typedef __uint64_t __uint_least64_t;
|
||||
|
||||
/* 7.18.1.3 Fastest minimum-width integer types */
|
||||
typedef __int32_t __int_fast8_t;
|
||||
typedef __uint32_t __uint_fast8_t;
|
||||
typedef __int32_t __int_fast16_t;
|
||||
typedef __uint32_t __uint_fast16_t;
|
||||
typedef __int32_t __int_fast32_t;
|
||||
typedef __uint32_t __uint_fast32_t;
|
||||
typedef __int64_t __int_fast64_t;
|
||||
typedef __uint64_t __uint_fast64_t;
|
||||
|
||||
/* 7.18.1.4 Integer types capable of holding object pointers */
|
||||
typedef int __intptr_t;
|
||||
typedef unsigned int __uintptr_t;
|
||||
|
||||
/* 7.18.1.5 Greatest-width integer types */
|
||||
typedef __int64_t __intmax_t;
|
||||
typedef __uint64_t __uintmax_t;
|
||||
|
||||
/* Register size */
|
||||
typedef __int32_t __register_t;
|
||||
|
||||
/* VM system types */
|
||||
typedef unsigned long __vaddr_t;
|
||||
typedef unsigned long __paddr_t;
|
||||
typedef unsigned long __vsize_t;
|
||||
typedef unsigned long __psize_t;
|
||||
|
||||
/* Standard system types */
|
||||
typedef int __clock_t;
|
||||
typedef int __clockid_t;
|
||||
typedef double __double_t;
|
||||
typedef float __float_t;
|
||||
typedef long __ptrdiff_t;
|
||||
typedef int __time_t;
|
||||
typedef int __timer_t;
|
||||
#if defined(__GNUC__) && __GNUC__ >= 3
|
||||
typedef __builtin_va_list __va_list;
|
||||
#else
|
||||
typedef char * __va_list;
|
||||
#endif
|
||||
|
||||
/* Wide character support types */
|
||||
#ifndef __cplusplus
|
||||
typedef int __wchar_t;
|
||||
#endif
|
||||
typedef int __wint_t;
|
||||
typedef int __rune_t;
|
||||
typedef void * __wctrans_t;
|
||||
typedef void * __wctype_t;
|
||||
|
||||
#endif /* _ARM__TYPES_H_ */
|
||||
@@ -38,22 +38,107 @@
|
||||
#ifndef _ARM32_ASM_H_
|
||||
#define _ARM32_ASM_H_
|
||||
|
||||
#ifdef __ELF__
|
||||
# define _C_LABEL(x) x
|
||||
#else
|
||||
# ifdef __STDC__
|
||||
# define _C_LABEL(x) _ ## x
|
||||
# else
|
||||
# define _C_LABEL(x) _/**/x
|
||||
# endif
|
||||
#endif
|
||||
#define _ASM_LABEL(x) x
|
||||
|
||||
#ifdef __STDC__
|
||||
# define __CONCAT(x,y) x ## y
|
||||
# define __STRING(x) #x
|
||||
#else
|
||||
# define __CONCAT(x,y) x/**/y
|
||||
# define __STRING(x) "x"
|
||||
#endif
|
||||
|
||||
#ifndef _ALIGN_TEXT
|
||||
# define _ALIGN_TEXT .align 0
|
||||
#endif
|
||||
|
||||
#undef __bionic_asm_custom_entry
|
||||
#undef __bionic_asm_custom_end
|
||||
#define __bionic_asm_custom_entry(f) .fnstart
|
||||
#define __bionic_asm_custom_end(f) .fnend
|
||||
/*
|
||||
* gas/arm uses @ as a single comment character and thus cannot be used here
|
||||
* Instead it recognised the # instead of an @ symbols in .type directives
|
||||
* We define a couple of macros so that assembly code will not be dependant
|
||||
* on one or the other.
|
||||
*/
|
||||
#define _ASM_TYPE_FUNCTION #function
|
||||
#define _ASM_TYPE_OBJECT #object
|
||||
#define _ENTRY(x) \
|
||||
.text; _ALIGN_TEXT; .globl x; .type x,_ASM_TYPE_FUNCTION; x: .fnstart
|
||||
|
||||
#undef __bionic_asm_function_type
|
||||
#define __bionic_asm_function_type #function
|
||||
#define _ASM_SIZE(x) .size x, .-x;
|
||||
|
||||
#if defined(__ELF__) && defined(PIC)
|
||||
#define PIC_SYM(x,y) x ## ( ## y ## )
|
||||
#define _END(x) \
|
||||
.fnend; \
|
||||
_ASM_SIZE(x)
|
||||
|
||||
#ifdef GPROF
|
||||
# ifdef __ELF__
|
||||
# define _PROF_PROLOGUE \
|
||||
mov ip, lr; bl __mcount
|
||||
# else
|
||||
# define _PROF_PROLOGUE \
|
||||
mov ip,lr; bl mcount
|
||||
# endif
|
||||
#else
|
||||
#define PIC_SYM(x,y) x
|
||||
# define _PROF_PROLOGUE
|
||||
#endif
|
||||
|
||||
#define ENTRY(y) _ENTRY(_C_LABEL(y)); _PROF_PROLOGUE
|
||||
#define ENTRY_NP(y) _ENTRY(_C_LABEL(y))
|
||||
#define END(y) _END(_C_LABEL(y))
|
||||
#define ASENTRY(y) _ENTRY(_ASM_LABEL(y)); _PROF_PROLOGUE
|
||||
#define ASENTRY_NP(y) _ENTRY(_ASM_LABEL(y))
|
||||
#define ASEND(y) _END(_ASM_LABEL(y))
|
||||
|
||||
#ifdef __ELF__
|
||||
#define ENTRY_PRIVATE(y) ENTRY(y); .hidden _C_LABEL(y)
|
||||
#else
|
||||
#define ENTRY_PRIVATE(y) ENTRY(y)
|
||||
#endif
|
||||
|
||||
#define ASMSTR .asciz
|
||||
|
||||
#if defined(__ELF__) && defined(PIC)
|
||||
#ifdef __STDC__
|
||||
#define PIC_SYM(x,y) x ## ( ## y ## )
|
||||
#else
|
||||
#define PIC_SYM(x,y) x/**/(/**/y/**/)
|
||||
#endif
|
||||
#else
|
||||
#define PIC_SYM(x,y) x
|
||||
#endif
|
||||
|
||||
#ifdef __ELF__
|
||||
#define RCSID(x) .section ".ident"; .asciz x
|
||||
#else
|
||||
#define RCSID(x) .text; .asciz x
|
||||
#endif
|
||||
|
||||
#ifdef __ELF__
|
||||
#define WEAK_ALIAS(alias,sym) \
|
||||
.weak alias; \
|
||||
alias = sym
|
||||
#endif
|
||||
|
||||
#ifdef __STDC__
|
||||
#define WARN_REFERENCES(sym,msg) \
|
||||
.stabs msg ## ,30,0,0,0 ; \
|
||||
.stabs __STRING(_C_LABEL(sym)) ## ,1,0,0,0
|
||||
#elif defined(__ELF__)
|
||||
#define WARN_REFERENCES(sym,msg) \
|
||||
.stabs msg,30,0,0,0 ; \
|
||||
.stabs __STRING(sym),1,0,0,0
|
||||
#else
|
||||
#define WARN_REFERENCES(sym,msg) \
|
||||
.stabs msg,30,0,0,0 ; \
|
||||
.stabs __STRING(_/**/sym),1,0,0,0
|
||||
#endif /* __STDC__ */
|
||||
|
||||
#endif /* !_ARM_ASM_H_ */
|
||||
|
||||
19
libc/arch-arm/include/machine/cdefs.h
Normal file
19
libc/arch-arm/include/machine/cdefs.h
Normal file
@@ -0,0 +1,19 @@
|
||||
/* $OpenBSD: cdefs.h,v 1.2 2005/11/24 20:46:44 deraadt Exp $ */
|
||||
|
||||
#ifndef _MACHINE_CDEFS_H_
|
||||
#define _MACHINE_CDEFS_H_
|
||||
|
||||
#if defined(lint)
|
||||
#define __indr_reference(sym,alias) __lint_equal__(sym,alias)
|
||||
#define __warn_references(sym,msg)
|
||||
#define __weak_alias(alias,sym) __lint_equal__(sym,alias)
|
||||
#elif defined(__GNUC__) && defined(__STDC__)
|
||||
#define __weak_alias(alias,sym) \
|
||||
__asm__(".weak " __STRING(alias) " ; " __STRING(alias) \
|
||||
" = " __STRING(sym));
|
||||
#define __warn_references(sym,msg) \
|
||||
__asm__(".section .gnu.warning." __STRING(sym) \
|
||||
" ; .ascii \"" msg "\" ; .text");
|
||||
#endif
|
||||
|
||||
#endif /* !_MACHINE_CDEFS_H_ */
|
||||
@@ -34,29 +34,133 @@
|
||||
*
|
||||
* This is done to abstract us from the various ARM Architecture
|
||||
* quirks and alphabet soup.
|
||||
*
|
||||
* IMPORTANT: We have no intention to support anything below an ARMv4T !
|
||||
*/
|
||||
|
||||
/* __ARM_ARCH__ is a number corresponding to the ARM revision
|
||||
* we're going to support. Our toolchain doesn't define __ARM_ARCH__
|
||||
* we're going to support
|
||||
*
|
||||
* it looks like our toolchain doesn't define __ARM_ARCH__
|
||||
* so try to guess it.
|
||||
*
|
||||
*
|
||||
*
|
||||
*/
|
||||
#ifndef __ARM_ARCH__
|
||||
|
||||
# if defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ || \
|
||||
defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
|
||||
defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
|
||||
|
||||
# define __ARM_ARCH__ 7
|
||||
|
||||
# elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ || \
|
||||
defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6Z__ || \
|
||||
defined __ARM_ARCH_6KZ__ || defined __ARM_ARCH_6T2__
|
||||
defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6Z__ || \
|
||||
defined __ARM_ARCH_6KZ__ || defined __ARM_ARCH_6T2__
|
||||
#
|
||||
# define __ARM_ARCH__ 6
|
||||
#
|
||||
# elif defined __ARM_ARCH_5__ || defined __ARM_ARCH_5T__ || \
|
||||
defined __ARM_ARCH_5TE__ || defined __ARM_ARCH_5TEJ__
|
||||
#
|
||||
# define __ARM_ARCH__ 5
|
||||
#
|
||||
# elif defined __ARM_ARCH_4T__
|
||||
#
|
||||
# define __ARM_ARCH__ 4
|
||||
#
|
||||
# elif defined __ARM_ARCH_4__
|
||||
# error ARMv4 is not supported, please use ARMv4T at a minimum
|
||||
# else
|
||||
# error Unknown or unsupported ARM architecture
|
||||
# endif
|
||||
#endif
|
||||
|
||||
/* experimental feature used to check that our ARMv4 workarounds
|
||||
* work correctly without a real ARMv4 machine */
|
||||
#ifdef BIONIC_EXPERIMENTAL_FORCE_ARMV4
|
||||
# undef __ARM_ARCH__
|
||||
# define __ARM_ARCH__ 4
|
||||
#endif
|
||||
|
||||
/* define __ARM_HAVE_5TE if we have the ARMv5TE instructions */
|
||||
#if __ARM_ARCH__ > 5
|
||||
# define __ARM_HAVE_5TE 1
|
||||
#elif __ARM_ARCH__ == 5
|
||||
# if defined __ARM_ARCH_5TE__ || defined __ARM_ARCH_5TEJ__
|
||||
# define __ARM_HAVE_5TE 1
|
||||
# endif
|
||||
#endif
|
||||
|
||||
/* instructions introduced in ARMv5 */
|
||||
#if __ARM_ARCH__ >= 5
|
||||
# define __ARM_HAVE_BLX 1
|
||||
# define __ARM_HAVE_CLZ 1
|
||||
# define __ARM_HAVE_LDC2 1
|
||||
# define __ARM_HAVE_MCR2 1
|
||||
# define __ARM_HAVE_MRC2 1
|
||||
# define __ARM_HAVE_STC2 1
|
||||
#endif
|
||||
|
||||
/* ARMv5TE introduces a few instructions */
|
||||
#if __ARM_HAVE_5TE
|
||||
# define __ARM_HAVE_PLD 1
|
||||
# define __ARM_HAVE_MCRR 1
|
||||
# define __ARM_HAVE_MRRC 1
|
||||
#endif
|
||||
|
||||
/* define __ARM_HAVE_HALFWORD_MULTIPLY when half-word multiply instructions
|
||||
* this means variants of: smul, smulw, smla, smlaw, smlal
|
||||
*/
|
||||
#define __ARM_HAVE_HALFWORD_MULTIPLY 1
|
||||
#if __ARM_HAVE_5TE
|
||||
# define __ARM_HAVE_HALFWORD_MULTIPLY 1
|
||||
#endif
|
||||
|
||||
/* define __ARM_HAVE_PAIR_LOAD_STORE when 64-bit memory loads and stored
|
||||
* into/from a pair of 32-bit registers is supported throuhg 'ldrd' and 'strd'
|
||||
*/
|
||||
#if __ARM_HAVE_5TE
|
||||
# define __ARM_HAVE_PAIR_LOAD_STORE 1
|
||||
#endif
|
||||
|
||||
/* define __ARM_HAVE_SATURATED_ARITHMETIC is you have the saturated integer
|
||||
* arithmetic instructions: qdd, qdadd, qsub, qdsub
|
||||
*/
|
||||
#if __ARM_HAVE_5TE
|
||||
# define __ARM_HAVE_SATURATED_ARITHMETIC 1
|
||||
#endif
|
||||
|
||||
/* define __ARM_HAVE_PC_INTERWORK when a direct assignment to the
|
||||
* pc register will switch into thumb/ARM mode depending on bit 0
|
||||
* of the new instruction address. Before ARMv5, this was not the
|
||||
* case, and you have to write:
|
||||
*
|
||||
* mov r0, [<some address>]
|
||||
* bx r0
|
||||
*
|
||||
* instead of:
|
||||
*
|
||||
* ldr pc, [<some address>]
|
||||
*
|
||||
* note that this affects any instruction that explicitly changes the
|
||||
* value of the pc register, including ldm { ...,pc } or 'add pc, #offset'
|
||||
*/
|
||||
#if __ARM_ARCH__ >= 5
|
||||
# define __ARM_HAVE_PC_INTERWORK
|
||||
#endif
|
||||
|
||||
/* define __ARM_HAVE_LDREX_STREX for ARMv6 and ARMv7 architecture to be
|
||||
* used in replacement of deprecated swp instruction
|
||||
*/
|
||||
#if __ARM_ARCH__ >= 6
|
||||
# define __ARM_HAVE_LDREX_STREX
|
||||
#endif
|
||||
|
||||
/* define __ARM_HAVE_DMB for ARMv7 architecture
|
||||
*/
|
||||
#if __ARM_ARCH__ >= 7
|
||||
# define __ARM_HAVE_DMB
|
||||
#endif
|
||||
|
||||
/* define __ARM_HAVE_LDREXD for ARMv7 architecture
|
||||
* (also present in ARMv6K, but not implemented in ARMv7-M, neither of which
|
||||
@@ -80,4 +184,18 @@
|
||||
# define __ARM_HAVE_NEON
|
||||
#endif
|
||||
|
||||
/* Assembly-only macros */
|
||||
#ifdef __ASSEMBLY__
|
||||
|
||||
/* define a handy PLD(address) macro since the cache preload
|
||||
* is an optional opcode
|
||||
*/
|
||||
#if __ARM_HAVE_PLD
|
||||
# define PLD(reg,offset) pld [reg, offset]
|
||||
#else
|
||||
# define PLD(reg,offset) /* nothing */
|
||||
#endif
|
||||
|
||||
#endif /* ! __ASSEMBLY__ */
|
||||
|
||||
#endif /* _ARM_MACHINE_CPU_FEATURES_H */
|
||||
|
||||
@@ -33,6 +33,15 @@
|
||||
|
||||
#ifdef __GNUC__
|
||||
|
||||
/*
|
||||
* REV and REV16 weren't available on ARM5 or ARM4.
|
||||
* We don't include <machine/cpu-features.h> because it pollutes the
|
||||
* namespace with macros like PLD.
|
||||
*/
|
||||
#if !defined __ARM_ARCH_5__ && !defined __ARM_ARCH_5T__ && \
|
||||
!defined __ARM_ARCH_5TE__ && !defined __ARM_ARCH_5TEJ__ && \
|
||||
!defined __ARM_ARCH_4T__ && !defined __ARM_ARCH_4__
|
||||
|
||||
/* According to RealView Assembler User's Guide, REV and REV16 are available
|
||||
* in Thumb code and 16-bit instructions when used in Thumb-2 code.
|
||||
*
|
||||
@@ -46,13 +55,13 @@
|
||||
*/
|
||||
#define __swap16md(x) ({ \
|
||||
register u_int16_t _x = (x); \
|
||||
__asm__ __volatile__("rev16 %0, %0" : "+l" (_x)); \
|
||||
__asm volatile ("rev16 %0, %0" : "+l" (_x)); \
|
||||
_x; \
|
||||
})
|
||||
|
||||
#define __swap32md(x) ({ \
|
||||
register u_int32_t _x = (x); \
|
||||
__asm__ __volatile__("rev %0, %0" : "+l" (_x)); \
|
||||
__asm volatile ("rev %0, %0" : "+l" (_x)); \
|
||||
_x; \
|
||||
})
|
||||
|
||||
@@ -65,6 +74,7 @@
|
||||
/* Tell sys/endian.h we have MD variants of the swap macros. */
|
||||
#define MD_SWAP
|
||||
|
||||
#endif /* __ARM_ARCH__ */
|
||||
#endif /* __GNUC__ */
|
||||
|
||||
#if defined(__ARMEB__)
|
||||
|
||||
191
libc/arch-arm/include/machine/ieee.h
Normal file
191
libc/arch-arm/include/machine/ieee.h
Normal file
@@ -0,0 +1,191 @@
|
||||
/* $OpenBSD: ieee.h,v 1.1 2004/02/01 05:09:49 drahn Exp $ */
|
||||
/* $NetBSD: ieee.h,v 1.2 2001/02/21 17:43:50 bjh21 Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 1992, 1993
|
||||
* The Regents of the University of California. All rights reserved.
|
||||
*
|
||||
* This software was developed by the Computer Systems Engineering group
|
||||
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
|
||||
* contributed to Berkeley.
|
||||
*
|
||||
* All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the University of
|
||||
* California, Lawrence Berkeley Laboratory.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the University of
|
||||
* California, Berkeley and its contributors.
|
||||
* 4. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)ieee.h 8.1 (Berkeley) 6/11/93
|
||||
*/
|
||||
|
||||
/*
|
||||
* ieee.h defines the machine-dependent layout of the machine's IEEE
|
||||
* floating point.
|
||||
*/
|
||||
|
||||
/*
|
||||
* Define the number of bits in each fraction and exponent.
|
||||
*
|
||||
* k k+1
|
||||
* Note that 1.0 x 2 == 0.1 x 2 and that denorms are represented
|
||||
*
|
||||
* (-exp_bias+1)
|
||||
* as fractions that look like 0.fffff x 2 . This means that
|
||||
*
|
||||
* -126
|
||||
* the number 0.10000 x 2 , for instance, is the same as the normalized
|
||||
*
|
||||
* -127 -128
|
||||
* float 1.0 x 2 . Thus, to represent 2 , we need one leading zero
|
||||
*
|
||||
* -129
|
||||
* in the fraction; to represent 2 , we need two, and so on. This
|
||||
*
|
||||
* (-exp_bias-fracbits+1)
|
||||
* implies that the smallest denormalized number is 2
|
||||
*
|
||||
* for whichever format we are talking about: for single precision, for
|
||||
*
|
||||
* -126 -149
|
||||
* instance, we get .00000000000000000000001 x 2 , or 1.0 x 2 , and
|
||||
*
|
||||
* -149 == -127 - 23 + 1.
|
||||
*/
|
||||
|
||||
/*
|
||||
* The ARM has two sets of FP data formats. The FPA supports 32-bit, 64-bit
|
||||
* and 96-bit IEEE formats, with the words in big-endian order. VFP supports
|
||||
* 32-bin and 64-bit IEEE formats with the words in the CPU's native byte
|
||||
* order.
|
||||
*
|
||||
* The FPA also has two packed decimal formats, but we ignore them here.
|
||||
*/
|
||||
|
||||
#define SNG_EXPBITS 8
|
||||
#define SNG_FRACBITS 23
|
||||
|
||||
#define DBL_EXPBITS 11
|
||||
#define DBL_FRACBITS 52
|
||||
|
||||
#ifndef __VFP_FP__
|
||||
#define E80_EXPBITS 15
|
||||
#define E80_FRACBITS 64
|
||||
|
||||
#define EXT_EXPBITS 15
|
||||
#define EXT_FRACBITS 112
|
||||
#endif
|
||||
|
||||
struct ieee_single {
|
||||
u_int sng_frac:23;
|
||||
u_int sng_exponent:8;
|
||||
u_int sng_sign:1;
|
||||
};
|
||||
|
||||
#ifdef __VFP_FP__
|
||||
struct ieee_double {
|
||||
#ifdef __ARMEB__
|
||||
u_int dbl_sign:1;
|
||||
u_int dbl_exp:11;
|
||||
u_int dbl_frach:20;
|
||||
u_int dbl_fracl;
|
||||
#else /* !__ARMEB__ */
|
||||
u_int dbl_fracl;
|
||||
u_int dbl_frach:20;
|
||||
u_int dbl_exp:11;
|
||||
u_int dbl_sign:1;
|
||||
#endif /* !__ARMEB__ */
|
||||
};
|
||||
#else /* !__VFP_FP__ */
|
||||
struct ieee_double {
|
||||
u_int dbl_frach:20;
|
||||
u_int dbl_exp:11;
|
||||
u_int dbl_sign:1;
|
||||
u_int dbl_fracl;
|
||||
};
|
||||
|
||||
union ieee_double_u {
|
||||
double dblu_d;
|
||||
struct ieee_double dblu_dbl;
|
||||
};
|
||||
|
||||
|
||||
struct ieee_e80 {
|
||||
u_int e80_exp:15;
|
||||
u_int e80_zero:16;
|
||||
u_int e80_sign:1;
|
||||
u_int e80_frach:31;
|
||||
u_int e80_j:1;
|
||||
u_int e80_fracl;
|
||||
};
|
||||
|
||||
struct ieee_ext {
|
||||
u_int ext_frach:16;
|
||||
u_int ext_exp:15;
|
||||
u_int ext_sign:1;
|
||||
u_int ext_frachm;
|
||||
u_int ext_fraclm;
|
||||
u_int ext_fracl;
|
||||
};
|
||||
#endif /* !__VFP_FP__ */
|
||||
|
||||
/*
|
||||
* Floats whose exponent is in [1..INFNAN) (of whatever type) are
|
||||
* `normal'. Floats whose exponent is INFNAN are either Inf or NaN.
|
||||
* Floats whose exponent is zero are either zero (iff all fraction
|
||||
* bits are zero) or subnormal values.
|
||||
*
|
||||
* A NaN is a `signalling NaN' if its QUIETNAN bit is clear in its
|
||||
* high fraction; if the bit is set, it is a `quiet NaN'.
|
||||
*/
|
||||
#define SNG_EXP_INFNAN 255
|
||||
#define DBL_EXP_INFNAN 2047
|
||||
#ifndef __VFP_FP__
|
||||
#define E80_EXP_INFNAN 32767
|
||||
#define EXT_EXP_INFNAN 32767
|
||||
#endif /* !__VFP_FP__ */
|
||||
|
||||
#if 0
|
||||
#define SNG_QUIETNAN (1 << 22)
|
||||
#define DBL_QUIETNAN (1 << 19)
|
||||
#ifndef __VFP_FP__
|
||||
#define E80_QUIETNAN (1 << 15)
|
||||
#define EXT_QUIETNAN (1 << 15)
|
||||
#endif /* !__VFP_FP__ */
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Exponent biases.
|
||||
*/
|
||||
#define SNG_EXP_BIAS 127
|
||||
#define DBL_EXP_BIAS 1023
|
||||
#ifndef __VFP_FP__
|
||||
#define E80_EXP_BIAS 16383
|
||||
#define EXT_EXP_BIAS 16383
|
||||
#endif /* !__VFP_FP__ */
|
||||
10
libc/arch-arm/include/machine/internal_types.h
Normal file
10
libc/arch-arm/include/machine/internal_types.h
Normal file
@@ -0,0 +1,10 @@
|
||||
/* $OpenBSD: internal_types.h,v 1.2 2004/05/06 15:53:39 drahn Exp $ */
|
||||
/* Public domain */
|
||||
#ifndef _ARM_INTERNAL_TYPES_H_
|
||||
#define _ARM_INTERNAL_TYPES_H_
|
||||
|
||||
#ifdef __CHAR_UNSIGNED__
|
||||
#define __machine_has_unsigned_chars
|
||||
#endif
|
||||
|
||||
#endif
|
||||
42
libc/arch-arm/include/machine/kernel.h
Normal file
42
libc/arch-arm/include/machine/kernel.h
Normal file
@@ -0,0 +1,42 @@
|
||||
/*
|
||||
* Copyright (C) 2008 The Android Open Source Project
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* * Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* * Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
||||
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
#ifndef _ARCH_ARM_KERNEL_H
|
||||
#define _ARCH_ARM_KERNEL_H
|
||||
|
||||
/* this file contains kernel-specific definitions that were optimized out of
|
||||
our processed kernel headers, but still useful nonetheless... */
|
||||
|
||||
typedef unsigned long __kernel_blkcnt_t;
|
||||
typedef unsigned long __kernel_blksize_t;
|
||||
|
||||
/* these aren't really defined by the kernel headers though... */
|
||||
typedef unsigned long __kernel_fsblkcnt_t;
|
||||
typedef unsigned long __kernel_fsfilcnt_t;
|
||||
typedef unsigned int __kernel_id_t;
|
||||
|
||||
#endif /* _ARCH_ARM_KERNEL_H */
|
||||
63
libc/arch-arm/include/machine/limits.h
Normal file
63
libc/arch-arm/include/machine/limits.h
Normal file
@@ -0,0 +1,63 @@
|
||||
/* $OpenBSD: limits.h,v 1.3 2006/01/06 22:48:46 millert Exp $ */
|
||||
/* $NetBSD: limits.h,v 1.4 2003/04/28 23:16:18 bjh21 Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 1988 The Regents of the University of California.
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* from: @(#)limits.h 7.2 (Berkeley) 6/28/90
|
||||
*/
|
||||
|
||||
#ifndef _ARM32_LIMITS_H_
|
||||
#define _ARM32_LIMITS_H_
|
||||
|
||||
#include <sys/cdefs.h>
|
||||
|
||||
#define MB_LEN_MAX 1 /* no multibyte characters */
|
||||
|
||||
#ifndef SIZE_MAX
|
||||
#define SIZE_MAX UINT_MAX /* max value for a size_t */
|
||||
#endif
|
||||
#ifndef SSIZE_MAX
|
||||
#define SSIZE_MAX INT_MAX /* max value for a ssize_t */
|
||||
#endif
|
||||
|
||||
#if __BSD_VISIBLE
|
||||
#define SIZE_T_MAX UINT_MAX /* max value for a size_t (historic) */
|
||||
|
||||
#define UQUAD_MAX 0xffffffffffffffffULL /* max unsigned quad */
|
||||
#define QUAD_MAX 0x7fffffffffffffffLL /* max signed quad */
|
||||
#define QUAD_MIN (-0x7fffffffffffffffLL-1) /* min signed quad */
|
||||
|
||||
#endif /* __BSD_VISIBLE */
|
||||
|
||||
#define LONGLONG_BIT 64
|
||||
#define LONGLONG_MIN (-9223372036854775807LL-1)
|
||||
#define LONGLONG_MAX 9223372036854775807LL
|
||||
#define ULONGLONG_MAX 18446744073709551615ULL
|
||||
|
||||
#endif /* _ARM32_LIMITS_H_ */
|
||||
@@ -26,8 +26,8 @@
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <private/bionic_asm.h>
|
||||
#include <private/libc_events.h>
|
||||
#include <machine/asm.h>
|
||||
#include "libc_events.h"
|
||||
|
||||
.syntax unified
|
||||
|
||||
@@ -38,6 +38,7 @@
|
||||
// Check that the two lengths together don't exceed the threshold, then
|
||||
// do a memcpy of the data.
|
||||
ENTRY(__strcat_chk)
|
||||
.cfi_startproc
|
||||
pld [r0, #0]
|
||||
push {r0, lr}
|
||||
.save {r0, lr}
|
||||
@@ -187,13 +188,16 @@ ENTRY(__strcat_chk)
|
||||
mov r2, r4
|
||||
add r0, r0, r3
|
||||
pop {r4, r5}
|
||||
|
||||
.cfi_endproc
|
||||
END(__strcat_chk)
|
||||
|
||||
#define MEMCPY_BASE __strcat_chk_memcpy_base
|
||||
#define MEMCPY_BASE_ALIGNED __strcat_chk_memcpy_base_aligned
|
||||
#include "memcpy_base.S"
|
||||
|
||||
ENTRY_PRIVATE(__strcat_chk_failed)
|
||||
ENTRY(__strcat_chk_failed)
|
||||
.cfi_startproc
|
||||
.save {r0, lr}
|
||||
.save {r4, r5}
|
||||
.cfi_def_cfa_offset 8
|
||||
@@ -212,8 +216,10 @@ error_code:
|
||||
.word BIONIC_EVENT_STRCAT_BUFFER_OVERFLOW
|
||||
error_message:
|
||||
.word error_string-(1b+4)
|
||||
|
||||
.cfi_endproc
|
||||
END(__strcat_chk_failed)
|
||||
|
||||
.data
|
||||
error_string:
|
||||
.string "strcat: prevented write past end of buffer"
|
||||
.string "strcat buffer overflow"
|
||||
|
||||
@@ -26,8 +26,8 @@
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <private/bionic_asm.h>
|
||||
#include <private/libc_events.h>
|
||||
#include <machine/asm.h>
|
||||
#include "libc_events.h"
|
||||
|
||||
.syntax unified
|
||||
|
||||
@@ -37,6 +37,7 @@
|
||||
// Get the length of the source string first, then do a memcpy of the data
|
||||
// instead of a strcpy.
|
||||
ENTRY(__strcpy_chk)
|
||||
.cfi_startproc
|
||||
pld [r0, #0]
|
||||
push {r0, lr}
|
||||
.save {r0, lr}
|
||||
@@ -154,13 +155,16 @@ ENTRY(__strcpy_chk)
|
||||
|
||||
// Add 1 for copy length to get the string terminator.
|
||||
add r2, r3, #1
|
||||
|
||||
.cfi_endproc
|
||||
END(__strcpy_chk)
|
||||
|
||||
#define MEMCPY_BASE __strcpy_chk_memcpy_base
|
||||
#define MEMCPY_BASE_ALIGNED __strcpy_chk_memcpy_base_aligned
|
||||
#include "memcpy_base.S"
|
||||
|
||||
ENTRY_PRIVATE(__strcpy_chk_failed)
|
||||
ENTRY(__strcpy_chk_failed)
|
||||
.cfi_startproc
|
||||
.save {r0, lr}
|
||||
.cfi_def_cfa_offset 8
|
||||
.cfi_rel_offset r0, 0
|
||||
@@ -175,8 +179,9 @@ error_code:
|
||||
.word BIONIC_EVENT_STRCPY_BUFFER_OVERFLOW
|
||||
error_message:
|
||||
.word error_string-(1b+4)
|
||||
.cfi_endproc
|
||||
END(__strcpy_chk_failed)
|
||||
|
||||
.data
|
||||
error_string:
|
||||
.string "strcpy: prevented write past end of buffer"
|
||||
.string "strcpy buffer overflow"
|
||||
|
||||
@@ -28,8 +28,8 @@
|
||||
|
||||
/* Assumes neon instructions and a cache line size of 32 bytes. */
|
||||
|
||||
#include <private/bionic_asm.h>
|
||||
#include <private/libc_events.h>
|
||||
#include <machine/asm.h>
|
||||
#include "libc_events.h"
|
||||
|
||||
/*
|
||||
* This code assumes it is running on a processor that supports all arm v7
|
||||
@@ -44,26 +44,31 @@
|
||||
.thumb_func
|
||||
|
||||
ENTRY(__memcpy_chk)
|
||||
.cfi_startproc
|
||||
cmp r2, r3
|
||||
bhi __memcpy_chk_fail
|
||||
|
||||
// Fall through to memcpy...
|
||||
.cfi_endproc
|
||||
END(__memcpy_chk)
|
||||
|
||||
ENTRY(memcpy)
|
||||
.cfi_startproc
|
||||
pld [r1, #64]
|
||||
stmfd sp!, {r0, lr}
|
||||
.save {r0, lr}
|
||||
.cfi_def_cfa_offset 8
|
||||
.cfi_rel_offset r0, 0
|
||||
.cfi_rel_offset lr, 4
|
||||
.cfi_endproc
|
||||
END(memcpy)
|
||||
|
||||
#define MEMCPY_BASE __memcpy_base
|
||||
#define MEMCPY_BASE_ALIGNED __memcpy_base_aligned
|
||||
#include "memcpy_base.S"
|
||||
|
||||
ENTRY_PRIVATE(__memcpy_chk_fail)
|
||||
ENTRY(__memcpy_chk_fail)
|
||||
.cfi_startproc
|
||||
// Preserve lr for backtrace.
|
||||
push {lr}
|
||||
.save {lr}
|
||||
@@ -79,8 +84,9 @@ error_code:
|
||||
.word BIONIC_EVENT_MEMCPY_BUFFER_OVERFLOW
|
||||
error_message:
|
||||
.word error_string-(1b+4)
|
||||
.cfi_endproc
|
||||
END(__memcpy_chk_fail)
|
||||
|
||||
.data
|
||||
error_string:
|
||||
.string "memcpy: prevented write past end of buffer"
|
||||
.string "memcpy buffer overflow"
|
||||
|
||||
@@ -35,7 +35,8 @@
|
||||
|
||||
// Assumes neon instructions and a cache line size of 32 bytes.
|
||||
|
||||
ENTRY_PRIVATE(MEMCPY_BASE)
|
||||
ENTRY(MEMCPY_BASE)
|
||||
.cfi_startproc
|
||||
.save {r0, lr}
|
||||
.cfi_def_cfa_offset 8
|
||||
.cfi_rel_offset r0, 0
|
||||
@@ -121,4 +122,6 @@ ENTRY_PRIVATE(MEMCPY_BASE)
|
||||
|
||||
ldmfd sp!, {r0, lr}
|
||||
bx lr
|
||||
|
||||
.cfi_endproc
|
||||
END(MEMCPY_BASE)
|
||||
|
||||
@@ -27,8 +27,8 @@
|
||||
*/
|
||||
|
||||
#include <machine/cpu-features.h>
|
||||
#include <private/bionic_asm.h>
|
||||
#include <private/libc_events.h>
|
||||
#include <machine/asm.h>
|
||||
#include "libc_events.h"
|
||||
|
||||
/*
|
||||
* This code assumes it is running on a processor that supports all arm v7
|
||||
@@ -39,6 +39,7 @@
|
||||
.fpu neon
|
||||
|
||||
ENTRY(__memset_chk)
|
||||
.cfi_startproc
|
||||
cmp r2, r3
|
||||
bls .L_done
|
||||
|
||||
@@ -57,18 +58,23 @@ error_code:
|
||||
.word BIONIC_EVENT_MEMSET_BUFFER_OVERFLOW
|
||||
error_message:
|
||||
.word error_string-(1b+8)
|
||||
|
||||
.cfi_endproc
|
||||
END(__memset_chk)
|
||||
|
||||
ENTRY(bzero)
|
||||
.cfi_startproc
|
||||
mov r2, r1
|
||||
mov r1, #0
|
||||
|
||||
.L_done:
|
||||
// Fall through to memset...
|
||||
.cfi_endproc
|
||||
END(bzero)
|
||||
|
||||
/* memset() returns its first argument. */
|
||||
ENTRY(memset)
|
||||
.cfi_startproc
|
||||
.save {r0}
|
||||
stmfd sp!, {r0}
|
||||
.cfi_def_cfa_offset 4
|
||||
@@ -105,8 +111,9 @@ ENTRY(memset)
|
||||
strcsb r1, [r0], #1
|
||||
ldmfd sp!, {r0}
|
||||
bx lr
|
||||
.cfi_endproc
|
||||
END(memset)
|
||||
|
||||
.data
|
||||
error_string:
|
||||
.string "memset: prevented write past end of buffer"
|
||||
.string "memset buffer overflow"
|
||||
|
||||
@@ -27,7 +27,7 @@
|
||||
*/
|
||||
|
||||
#include <machine/cpu-features.h>
|
||||
#include <private/bionic_asm.h>
|
||||
#include <machine/asm.h>
|
||||
|
||||
#ifdef __ARMEB__
|
||||
#define S2LOMEM lsl
|
||||
@@ -145,8 +145,19 @@ ENTRY(strcmp)
|
||||
|
||||
.macro magic_find_zero_bytes w1
|
||||
/* Macro to find all-zero bytes in w1, result is in ip. */
|
||||
#if (defined (__ARM_FEATURE_DSP))
|
||||
uadd8 ip, \w1, r6
|
||||
sel ip, r7, r6
|
||||
#else /* not defined (__ARM_FEATURE_DSP) */
|
||||
/* __ARM_FEATURE_DSP is not defined for some Cortex-M processors.
|
||||
Coincidently, these processors only have Thumb-2 mode, where we can use the
|
||||
the (large) magic constant available directly as an immediate in instructions.
|
||||
Note that we cannot use the magic constant in ARM mode, where we need
|
||||
to create the constant in a register. */
|
||||
sub ip, \w1, #0x01010101
|
||||
bic ip, ip, \w1
|
||||
and ip, ip, #0x80808080
|
||||
#endif /* not defined (__ARM_FEATURE_DSP) */
|
||||
.endm /* magic_find_zero_bytes */
|
||||
|
||||
.macro setup_return w1 w2
|
||||
@@ -159,6 +170,7 @@ ENTRY(strcmp)
|
||||
#endif /* not __ARMEB__ */
|
||||
.endm /* setup_return */
|
||||
|
||||
.cfi_startproc
|
||||
pld [r0, #0]
|
||||
pld [r1, #0]
|
||||
|
||||
@@ -484,4 +496,5 @@ ENTRY(strcmp)
|
||||
.cfi_restore r7
|
||||
|
||||
bx lr
|
||||
.cfi_endproc
|
||||
END(strcmp)
|
||||
|
||||
@@ -1,12 +1,11 @@
|
||||
libc_bionic_src_files_arm += \
|
||||
arch-arm/krait/bionic/memcpy.S \
|
||||
arch-arm/krait/bionic/memset.S \
|
||||
arch-arm/krait/bionic/strcmp.S \
|
||||
arch-arm/krait/bionic/__strcat_chk.S \
|
||||
arch-arm/krait/bionic/__strcpy_chk.S \
|
||||
|
||||
$(call libc-add-cpu-variant-src,MEMCPY,arch-arm/krait/bionic/memcpy.S)
|
||||
$(call libc-add-cpu-variant-src,MEMSET,arch-arm/krait/bionic/memset.S)
|
||||
$(call libc-add-cpu-variant-src,STRCMP,arch-arm/krait/bionic/strcmp.S)
|
||||
$(call libc-add-cpu-variant-src,__STRCAT_CHK,arch-arm/krait/bionic/__strcat_chk.S)
|
||||
$(call libc-add-cpu-variant-src,__STRCPY_CHK,arch-arm/krait/bionic/__strcpy_chk.S)
|
||||
# Use cortex-a15 versions of strcat/strcpy/strlen.
|
||||
libc_bionic_src_files_arm += \
|
||||
arch-arm/cortex-a15/bionic/strcat.S \
|
||||
arch-arm/cortex-a15/bionic/strcpy.S \
|
||||
arch-arm/cortex-a15/bionic/strlen.S \
|
||||
$(call libc-add-cpu-variant-src,STRCAT,arch-arm/cortex-a15/bionic/strcat.S)
|
||||
$(call libc-add-cpu-variant-src,STRCPY,arch-arm/cortex-a15/bionic/strcpy.S)
|
||||
$(call libc-add-cpu-variant-src,STRLEN,arch-arm/cortex-a15/bionic/strlen.S)
|
||||
|
||||
include bionic/libc/arch-arm/generic/generic.mk
|
||||
|
||||
208
libc/arch-arm/syscalls.mk
Normal file
208
libc/arch-arm/syscalls.mk
Normal file
@@ -0,0 +1,208 @@
|
||||
# auto-generated by gensyscalls.py, do not touch
|
||||
syscall_src :=
|
||||
syscall_src += arch-arm/syscalls/_exit.S
|
||||
syscall_src += arch-arm/syscalls/_exit_thread.S
|
||||
syscall_src += arch-arm/syscalls/__fork.S
|
||||
syscall_src += arch-arm/syscalls/__waitid.S
|
||||
syscall_src += arch-arm/syscalls/wait4.S
|
||||
syscall_src += arch-arm/syscalls/__sys_clone.S
|
||||
syscall_src += arch-arm/syscalls/execve.S
|
||||
syscall_src += arch-arm/syscalls/__setuid.S
|
||||
syscall_src += arch-arm/syscalls/getuid.S
|
||||
syscall_src += arch-arm/syscalls/getgid.S
|
||||
syscall_src += arch-arm/syscalls/geteuid.S
|
||||
syscall_src += arch-arm/syscalls/getegid.S
|
||||
syscall_src += arch-arm/syscalls/getresuid.S
|
||||
syscall_src += arch-arm/syscalls/getresgid.S
|
||||
syscall_src += arch-arm/syscalls/gettid.S
|
||||
syscall_src += arch-arm/syscalls/readahead.S
|
||||
syscall_src += arch-arm/syscalls/getgroups.S
|
||||
syscall_src += arch-arm/syscalls/getpgid.S
|
||||
syscall_src += arch-arm/syscalls/getppid.S
|
||||
syscall_src += arch-arm/syscalls/getsid.S
|
||||
syscall_src += arch-arm/syscalls/setsid.S
|
||||
syscall_src += arch-arm/syscalls/setgid.S
|
||||
syscall_src += arch-arm/syscalls/__setreuid.S
|
||||
syscall_src += arch-arm/syscalls/__setresuid.S
|
||||
syscall_src += arch-arm/syscalls/setresgid.S
|
||||
syscall_src += arch-arm/syscalls/__brk.S
|
||||
syscall_src += arch-arm/syscalls/__ptrace.S
|
||||
syscall_src += arch-arm/syscalls/__getpriority.S
|
||||
syscall_src += arch-arm/syscalls/setpriority.S
|
||||
syscall_src += arch-arm/syscalls/setrlimit.S
|
||||
syscall_src += arch-arm/syscalls/getrlimit.S
|
||||
syscall_src += arch-arm/syscalls/getrusage.S
|
||||
syscall_src += arch-arm/syscalls/setgroups.S
|
||||
syscall_src += arch-arm/syscalls/setpgid.S
|
||||
syscall_src += arch-arm/syscalls/vfork.S
|
||||
syscall_src += arch-arm/syscalls/setregid.S
|
||||
syscall_src += arch-arm/syscalls/chroot.S
|
||||
syscall_src += arch-arm/syscalls/prctl.S
|
||||
syscall_src += arch-arm/syscalls/capget.S
|
||||
syscall_src += arch-arm/syscalls/capset.S
|
||||
syscall_src += arch-arm/syscalls/sigaltstack.S
|
||||
syscall_src += arch-arm/syscalls/acct.S
|
||||
syscall_src += arch-arm/syscalls/read.S
|
||||
syscall_src += arch-arm/syscalls/write.S
|
||||
syscall_src += arch-arm/syscalls/pread64.S
|
||||
syscall_src += arch-arm/syscalls/pwrite64.S
|
||||
syscall_src += arch-arm/syscalls/__open.S
|
||||
syscall_src += arch-arm/syscalls/__openat.S
|
||||
syscall_src += arch-arm/syscalls/close.S
|
||||
syscall_src += arch-arm/syscalls/lseek.S
|
||||
syscall_src += arch-arm/syscalls/__llseek.S
|
||||
syscall_src += arch-arm/syscalls/getpid.S
|
||||
syscall_src += arch-arm/syscalls/__mmap2.S
|
||||
syscall_src += arch-arm/syscalls/munmap.S
|
||||
syscall_src += arch-arm/syscalls/mremap.S
|
||||
syscall_src += arch-arm/syscalls/msync.S
|
||||
syscall_src += arch-arm/syscalls/mprotect.S
|
||||
syscall_src += arch-arm/syscalls/madvise.S
|
||||
syscall_src += arch-arm/syscalls/mlock.S
|
||||
syscall_src += arch-arm/syscalls/munlock.S
|
||||
syscall_src += arch-arm/syscalls/mlockall.S
|
||||
syscall_src += arch-arm/syscalls/munlockall.S
|
||||
syscall_src += arch-arm/syscalls/mincore.S
|
||||
syscall_src += arch-arm/syscalls/__ioctl.S
|
||||
syscall_src += arch-arm/syscalls/readv.S
|
||||
syscall_src += arch-arm/syscalls/writev.S
|
||||
syscall_src += arch-arm/syscalls/__fcntl.S
|
||||
syscall_src += arch-arm/syscalls/flock.S
|
||||
syscall_src += arch-arm/syscalls/fchmod.S
|
||||
syscall_src += arch-arm/syscalls/dup.S
|
||||
syscall_src += arch-arm/syscalls/pipe.S
|
||||
syscall_src += arch-arm/syscalls/pipe2.S
|
||||
syscall_src += arch-arm/syscalls/dup2.S
|
||||
syscall_src += arch-arm/syscalls/select.S
|
||||
syscall_src += arch-arm/syscalls/ftruncate.S
|
||||
syscall_src += arch-arm/syscalls/ftruncate64.S
|
||||
syscall_src += arch-arm/syscalls/getdents.S
|
||||
syscall_src += arch-arm/syscalls/fsync.S
|
||||
syscall_src += arch-arm/syscalls/fdatasync.S
|
||||
syscall_src += arch-arm/syscalls/fchown.S
|
||||
syscall_src += arch-arm/syscalls/sync.S
|
||||
syscall_src += arch-arm/syscalls/__fcntl64.S
|
||||
syscall_src += arch-arm/syscalls/__fstatfs64.S
|
||||
syscall_src += arch-arm/syscalls/sendfile.S
|
||||
syscall_src += arch-arm/syscalls/fstatat.S
|
||||
syscall_src += arch-arm/syscalls/mkdirat.S
|
||||
syscall_src += arch-arm/syscalls/fchownat.S
|
||||
syscall_src += arch-arm/syscalls/fchmodat.S
|
||||
syscall_src += arch-arm/syscalls/renameat.S
|
||||
syscall_src += arch-arm/syscalls/fsetxattr.S
|
||||
syscall_src += arch-arm/syscalls/fgetxattr.S
|
||||
syscall_src += arch-arm/syscalls/flistxattr.S
|
||||
syscall_src += arch-arm/syscalls/fremovexattr.S
|
||||
syscall_src += arch-arm/syscalls/link.S
|
||||
syscall_src += arch-arm/syscalls/unlink.S
|
||||
syscall_src += arch-arm/syscalls/unlinkat.S
|
||||
syscall_src += arch-arm/syscalls/chdir.S
|
||||
syscall_src += arch-arm/syscalls/mknod.S
|
||||
syscall_src += arch-arm/syscalls/chmod.S
|
||||
syscall_src += arch-arm/syscalls/chown.S
|
||||
syscall_src += arch-arm/syscalls/lchown.S
|
||||
syscall_src += arch-arm/syscalls/mount.S
|
||||
syscall_src += arch-arm/syscalls/umount2.S
|
||||
syscall_src += arch-arm/syscalls/fstat.S
|
||||
syscall_src += arch-arm/syscalls/stat.S
|
||||
syscall_src += arch-arm/syscalls/lstat.S
|
||||
syscall_src += arch-arm/syscalls/mkdir.S
|
||||
syscall_src += arch-arm/syscalls/readlink.S
|
||||
syscall_src += arch-arm/syscalls/rmdir.S
|
||||
syscall_src += arch-arm/syscalls/rename.S
|
||||
syscall_src += arch-arm/syscalls/__getcwd.S
|
||||
syscall_src += arch-arm/syscalls/access.S
|
||||
syscall_src += arch-arm/syscalls/faccessat.S
|
||||
syscall_src += arch-arm/syscalls/symlink.S
|
||||
syscall_src += arch-arm/syscalls/fchdir.S
|
||||
syscall_src += arch-arm/syscalls/truncate.S
|
||||
syscall_src += arch-arm/syscalls/setxattr.S
|
||||
syscall_src += arch-arm/syscalls/lsetxattr.S
|
||||
syscall_src += arch-arm/syscalls/getxattr.S
|
||||
syscall_src += arch-arm/syscalls/lgetxattr.S
|
||||
syscall_src += arch-arm/syscalls/listxattr.S
|
||||
syscall_src += arch-arm/syscalls/llistxattr.S
|
||||
syscall_src += arch-arm/syscalls/removexattr.S
|
||||
syscall_src += arch-arm/syscalls/lremovexattr.S
|
||||
syscall_src += arch-arm/syscalls/__statfs64.S
|
||||
syscall_src += arch-arm/syscalls/unshare.S
|
||||
syscall_src += arch-arm/syscalls/swapon.S
|
||||
syscall_src += arch-arm/syscalls/swapoff.S
|
||||
syscall_src += arch-arm/syscalls/pause.S
|
||||
syscall_src += arch-arm/syscalls/gettimeofday.S
|
||||
syscall_src += arch-arm/syscalls/settimeofday.S
|
||||
syscall_src += arch-arm/syscalls/times.S
|
||||
syscall_src += arch-arm/syscalls/nanosleep.S
|
||||
syscall_src += arch-arm/syscalls/clock_gettime.S
|
||||
syscall_src += arch-arm/syscalls/clock_settime.S
|
||||
syscall_src += arch-arm/syscalls/clock_getres.S
|
||||
syscall_src += arch-arm/syscalls/clock_nanosleep.S
|
||||
syscall_src += arch-arm/syscalls/getitimer.S
|
||||
syscall_src += arch-arm/syscalls/setitimer.S
|
||||
syscall_src += arch-arm/syscalls/__timer_create.S
|
||||
syscall_src += arch-arm/syscalls/__timer_settime.S
|
||||
syscall_src += arch-arm/syscalls/__timer_gettime.S
|
||||
syscall_src += arch-arm/syscalls/__timer_getoverrun.S
|
||||
syscall_src += arch-arm/syscalls/__timer_delete.S
|
||||
syscall_src += arch-arm/syscalls/utimes.S
|
||||
syscall_src += arch-arm/syscalls/utimensat.S
|
||||
syscall_src += arch-arm/syscalls/timerfd_create.S
|
||||
syscall_src += arch-arm/syscalls/timerfd_settime.S
|
||||
syscall_src += arch-arm/syscalls/timerfd_gettime.S
|
||||
syscall_src += arch-arm/syscalls/sigaction.S
|
||||
syscall_src += arch-arm/syscalls/sigprocmask.S
|
||||
syscall_src += arch-arm/syscalls/__sigsuspend.S
|
||||
syscall_src += arch-arm/syscalls/__rt_sigaction.S
|
||||
syscall_src += arch-arm/syscalls/__rt_sigprocmask.S
|
||||
syscall_src += arch-arm/syscalls/__rt_sigtimedwait.S
|
||||
syscall_src += arch-arm/syscalls/sigpending.S
|
||||
syscall_src += arch-arm/syscalls/signalfd4.S
|
||||
syscall_src += arch-arm/syscalls/socket.S
|
||||
syscall_src += arch-arm/syscalls/socketpair.S
|
||||
syscall_src += arch-arm/syscalls/bind.S
|
||||
syscall_src += arch-arm/syscalls/connect.S
|
||||
syscall_src += arch-arm/syscalls/listen.S
|
||||
syscall_src += arch-arm/syscalls/accept.S
|
||||
syscall_src += arch-arm/syscalls/getsockname.S
|
||||
syscall_src += arch-arm/syscalls/getpeername.S
|
||||
syscall_src += arch-arm/syscalls/sendto.S
|
||||
syscall_src += arch-arm/syscalls/recvfrom.S
|
||||
syscall_src += arch-arm/syscalls/shutdown.S
|
||||
syscall_src += arch-arm/syscalls/setsockopt.S
|
||||
syscall_src += arch-arm/syscalls/getsockopt.S
|
||||
syscall_src += arch-arm/syscalls/sendmsg.S
|
||||
syscall_src += arch-arm/syscalls/recvmsg.S
|
||||
syscall_src += arch-arm/syscalls/sched_setscheduler.S
|
||||
syscall_src += arch-arm/syscalls/sched_getscheduler.S
|
||||
syscall_src += arch-arm/syscalls/sched_yield.S
|
||||
syscall_src += arch-arm/syscalls/sched_setparam.S
|
||||
syscall_src += arch-arm/syscalls/sched_getparam.S
|
||||
syscall_src += arch-arm/syscalls/sched_get_priority_max.S
|
||||
syscall_src += arch-arm/syscalls/sched_get_priority_min.S
|
||||
syscall_src += arch-arm/syscalls/sched_rr_get_interval.S
|
||||
syscall_src += arch-arm/syscalls/sched_setaffinity.S
|
||||
syscall_src += arch-arm/syscalls/__sched_getaffinity.S
|
||||
syscall_src += arch-arm/syscalls/__getcpu.S
|
||||
syscall_src += arch-arm/syscalls/ioprio_set.S
|
||||
syscall_src += arch-arm/syscalls/ioprio_get.S
|
||||
syscall_src += arch-arm/syscalls/uname.S
|
||||
syscall_src += arch-arm/syscalls/umask.S
|
||||
syscall_src += arch-arm/syscalls/__reboot.S
|
||||
syscall_src += arch-arm/syscalls/__syslog.S
|
||||
syscall_src += arch-arm/syscalls/init_module.S
|
||||
syscall_src += arch-arm/syscalls/delete_module.S
|
||||
syscall_src += arch-arm/syscalls/klogctl.S
|
||||
syscall_src += arch-arm/syscalls/sysinfo.S
|
||||
syscall_src += arch-arm/syscalls/personality.S
|
||||
syscall_src += arch-arm/syscalls/perf_event_open.S
|
||||
syscall_src += arch-arm/syscalls/futex.S
|
||||
syscall_src += arch-arm/syscalls/epoll_create.S
|
||||
syscall_src += arch-arm/syscalls/epoll_ctl.S
|
||||
syscall_src += arch-arm/syscalls/epoll_wait.S
|
||||
syscall_src += arch-arm/syscalls/inotify_init.S
|
||||
syscall_src += arch-arm/syscalls/inotify_add_watch.S
|
||||
syscall_src += arch-arm/syscalls/inotify_rm_watch.S
|
||||
syscall_src += arch-arm/syscalls/poll.S
|
||||
syscall_src += arch-arm/syscalls/eventfd.S
|
||||
syscall_src += arch-arm/syscalls/__set_tls.S
|
||||
syscall_src += arch-arm/syscalls/cacheflush.S
|
||||
@@ -1,6 +1,7 @@
|
||||
/* Generated by gensyscalls.py. Do not edit. */
|
||||
|
||||
#include <private/bionic_asm.h>
|
||||
/* autogenerated by gensyscalls.py */
|
||||
#include <asm/unistd.h>
|
||||
#include <linux/err.h>
|
||||
#include <machine/asm.h>
|
||||
|
||||
ENTRY(__brk)
|
||||
mov ip, r7
|
||||
|
||||
@@ -1,22 +0,0 @@
|
||||
/* Generated by gensyscalls.py. Do not edit. */
|
||||
|
||||
#include <private/bionic_asm.h>
|
||||
|
||||
ENTRY(__epoll_pwait)
|
||||
mov ip, sp
|
||||
stmfd sp!, {r4, r5, r6, r7}
|
||||
.cfi_def_cfa_offset 16
|
||||
.cfi_rel_offset r4, 0
|
||||
.cfi_rel_offset r5, 4
|
||||
.cfi_rel_offset r6, 8
|
||||
.cfi_rel_offset r7, 12
|
||||
ldmfd ip, {r4, r5, r6}
|
||||
ldr r7, =__NR_epoll_pwait
|
||||
swi #0
|
||||
ldmfd sp!, {r4, r5, r6, r7}
|
||||
.cfi_def_cfa_offset 0
|
||||
cmn r0, #(MAX_ERRNO + 1)
|
||||
bxls lr
|
||||
neg r0, r0
|
||||
b __set_errno
|
||||
END(__epoll_pwait)
|
||||
@@ -1,14 +0,0 @@
|
||||
/* Generated by gensyscalls.py. Do not edit. */
|
||||
|
||||
#include <private/bionic_asm.h>
|
||||
|
||||
ENTRY(__exit)
|
||||
mov ip, r7
|
||||
ldr r7, =__NR_exit
|
||||
swi #0
|
||||
mov r7, ip
|
||||
cmn r0, #(MAX_ERRNO + 1)
|
||||
bxls lr
|
||||
neg r0, r0
|
||||
b __set_errno
|
||||
END(__exit)
|
||||
15
libc/arch-arm/syscalls/__fcntl.S
Normal file
15
libc/arch-arm/syscalls/__fcntl.S
Normal file
@@ -0,0 +1,15 @@
|
||||
/* autogenerated by gensyscalls.py */
|
||||
#include <asm/unistd.h>
|
||||
#include <linux/err.h>
|
||||
#include <machine/asm.h>
|
||||
|
||||
ENTRY(__fcntl)
|
||||
mov ip, r7
|
||||
ldr r7, =__NR_fcntl
|
||||
swi #0
|
||||
mov r7, ip
|
||||
cmn r0, #(MAX_ERRNO + 1)
|
||||
bxls lr
|
||||
neg r0, r0
|
||||
b __set_errno
|
||||
END(__fcntl)
|
||||
@@ -1,6 +1,7 @@
|
||||
/* Generated by gensyscalls.py. Do not edit. */
|
||||
|
||||
#include <private/bionic_asm.h>
|
||||
/* autogenerated by gensyscalls.py */
|
||||
#include <asm/unistd.h>
|
||||
#include <linux/err.h>
|
||||
#include <machine/asm.h>
|
||||
|
||||
ENTRY(__fcntl64)
|
||||
mov ip, r7
|
||||
|
||||
15
libc/arch-arm/syscalls/__fork.S
Normal file
15
libc/arch-arm/syscalls/__fork.S
Normal file
@@ -0,0 +1,15 @@
|
||||
/* autogenerated by gensyscalls.py */
|
||||
#include <asm/unistd.h>
|
||||
#include <linux/err.h>
|
||||
#include <machine/asm.h>
|
||||
|
||||
ENTRY(__fork)
|
||||
mov ip, r7
|
||||
ldr r7, =__NR_fork
|
||||
swi #0
|
||||
mov r7, ip
|
||||
cmn r0, #(MAX_ERRNO + 1)
|
||||
bxls lr
|
||||
neg r0, r0
|
||||
b __set_errno
|
||||
END(__fork)
|
||||
@@ -1,6 +1,7 @@
|
||||
/* Generated by gensyscalls.py. Do not edit. */
|
||||
|
||||
#include <private/bionic_asm.h>
|
||||
/* autogenerated by gensyscalls.py */
|
||||
#include <asm/unistd.h>
|
||||
#include <linux/err.h>
|
||||
#include <machine/asm.h>
|
||||
|
||||
ENTRY(__fstatfs64)
|
||||
mov ip, r7
|
||||
|
||||
@@ -1,6 +1,7 @@
|
||||
/* Generated by gensyscalls.py. Do not edit. */
|
||||
|
||||
#include <private/bionic_asm.h>
|
||||
/* autogenerated by gensyscalls.py */
|
||||
#include <asm/unistd.h>
|
||||
#include <linux/err.h>
|
||||
#include <machine/asm.h>
|
||||
|
||||
ENTRY(__getcpu)
|
||||
mov ip, r7
|
||||
|
||||
Some files were not shown because too many files have changed in this diff Show More
Reference in New Issue
Block a user