Merge "fix runtime issues for scripts"

Remove code duplication and fall back to trying directly if the proxy
isn't available. With this, tests still work if netd is dead (perhaps
because you've run "adb shell stop", or because you're running on the host).

Bug: 18547878
Change-Id: Ia4a9aa18b1fc79e09735107246989fa7fc6c8455

README.md

@@ -4,40 +4,52 @@ Working on bionic
 What are the big pieces of bionic?
 ----------------------------------
 
-libc/ --- libc.so, libc.a
-  The C library. Stuff like fopen(3) and kill(2).
-libm/ --- libm.so, libm.a
-  The math library. Traditionally Unix systems kept stuff like sin(3) and
-  cos(3) in a separate library to save space in the days before shared
+#### libc/ --- libc.so, libc.a
+
+The C library. Stuff like `fopen(3)` and `kill(2)`.
+
+#### libm/ --- libm.so, libm.a
+
+The math library. Traditionally Unix systems kept stuff like `sin(3)` and
+`cos(3)` in a separate library to save space in the days before shared
 libraries.
-libdl/ --- libdl.so
-  The dynamic linker interface library. This is actually just a bunch of
-  stubs that the dynamic linker replaces with pointers to its own
-  implementation at runtime. This is where stuff like dlopen(3) lives.
-libstdc++/ --- libstdc++.so
-  The C++ ABI support functions. The C++ compiler doesn't know how to
-  implement thread-safe static initialization and the like, so it just calls
-  functions that are supplied by the system. Stuff like __cxa_guard_acquire
-  and __cxa_pure_virtual live here.
 
-linker/ --- /system/bin/linker and /system/bin/linker64
-  The dynamic linker. When you run a dynamically-linked executable, its ELF
-  file has a DT_INTERP entry that says "use the following program to start me".
-  On Android, that's either linker or linker64 (depending on whether it's a
+#### libdl/ --- libdl.so
+
+The dynamic linker interface library. This is actually just a bunch of stubs
+that the dynamic linker replaces with pointers to its own implementation at
+runtime. This is where stuff like `dlopen(3)` lives.
+
+#### libstdc++/ --- libstdc++.so
+
+The C++ ABI support functions. The C++ compiler doesn't know how to implement
+thread-safe static initialization and the like, so it just calls functions that
+are supplied by the system. Stuff like `__cxa_guard_acquire` and
+`__cxa_pure_virtual` live here.
+
+#### linker/ --- /system/bin/linker and /system/bin/linker64
+
+The dynamic linker. When you run a dynamically-linked executable, its ELF file
+has a `DT_INTERP` entry that says "use the following program to start me".  On
+Android, that's either `linker` or `linker64` (depending on whether it's a
 32-bit or 64-bit executable). It's responsible for loading the ELF executable
-  into memory and resolving references to symbols (so that when your code tries
-  to jump to fopen(3), say, it lands in the right place).
+into memory and resolving references to symbols (so that when your code tries to
+jump to `fopen(3)`, say, it lands in the right place).
 
-tests/ --- unit tests
-  The tests/ directory contains unit tests. Roughly arranged as one file per
+#### tests/ --- unit tests
+
+The `tests/` directory contains unit tests. Roughly arranged as one file per
 publicly-exported header file.
-benchmarks/ --- benchmarks
-  The benchmarks/ directory contains benchmarks.
+
+#### benchmarks/ --- benchmarks
+
+The `benchmarks/` directory contains benchmarks.
 
 
 What's in libc/?
 ----------------
 
+<pre>
 libc/
   arch-arm/
   arch-arm64/
@@ -121,6 +133,7 @@ libc/
   zoneinfo/
     # Android-format time zone data.
     # See 'Updating tzdata' later.
+</pre>
 
 
 Adding system calls
@@ -160,3 +173,86 @@ This is fully automated:
 
   1. Run update-tzdata.py.
 
+
+Verifying changes
+-----------------
+
+If you make a change that is likely to have a wide effect on the tree (such as a
+libc header change), you should run `make checkbuild`. A regular `make` will
+_not_ build the entire tree; just the minimum number of projects that are
+required for the device. Tests, additional developer tools, and various other
+modules will not be built. Note that `make checkbuild` will not be complete
+either, as `make tests` covers a few additional modules, but generally speaking
+`make checkbuild` is enough.
+
+
+Running the tests
+-----------------
+
+The tests are all built from the tests/ directory.
+
+### Device tests
+
+    $ mma
+    $ adb sync
+    $ adb shell /data/nativetest/bionic-unit-tests/bionic-unit-tests32
+    $ adb shell \
+        /data/nativetest/bionic-unit-tests-static/bionic-unit-tests-static32
+    # Only for 64-bit targets
+    $ adb shell /data/nativetest/bionic-unit-tests/bionic-unit-tests64
+    $ adb shell \
+        /data/nativetest/bionic-unit-tests-static/bionic-unit-tests-static64
+
+### Host tests
+
+The host tests require that you have `lunch`ed either an x86 or x86_64 target.
+
+    $ mma
+    # 64-bit tests for 64-bit targets, 32-bit otherwise.
+    $ mm bionic-unit-tests-run-on-host
+    # Only exists for 64-bit targets.
+    $ mm bionic-unit-tests-run-on-host32
+
+### Against glibc
+
+As a way to check that our tests do in fact test the correct behavior (and not
+just the behavior we think is correct), it is possible to run the tests against
+the host's glibc.
+
+    $ mma
+    $ bionic-unit-tests-glibc32 # already in your path
+    $ bionic-unit-tests-glibc64
+
+
+Gathering test coverage
+-----------------------
+
+For either host or target coverage, you must first:
+
+ * `$ export NATIVE_COVERAGE=true`
+     * Note that the build system is ignorant to this flag being toggled, i.e. if
+       you change this flag, you will have to manually rebuild bionic.
+ * Set `bionic_coverage=true` in `libc/Android.mk` and `libm/Android.mk`.
+
+### Coverage from device tests
+
+    $ mma
+    $ adb sync
+    $ adb shell \
+        GCOV_PREFIX=/data/local/tmp/gcov \
+        GCOV_PREFIX_STRIP=`echo $ANDROID_BUILD_TOP | grep -o / | wc -l` \
+        /data/nativetest/bionic-unit-tests/bionic-unit-tests32
+    $ acov
+
+`acov` will pull all coverage information from the device, push it to the right
+directories, run `lcov`, and open the coverage report in your browser.
+
+### Coverage from host tests
+
+First, build and run the host tests as usual (see above).
+
+    $ croot
+    $ lcov -c -d $ANDROID_PRODUCT_OUT -o coverage.info
+    $ genhtml -o covreport coverage.info # or lcov --list coverage.info
+
+The coverage report is now available at `covreport/index.html`.

benchmarks/Android.mk

@@ -32,7 +32,6 @@ benchmark_c_flags = \
 benchmark_src_files = \
     benchmark_main.cpp \
     math_benchmark.cpp \
-    property_benchmark.cpp \
     pthread_benchmark.cpp \
     semaphore_benchmark.cpp \
     stdio_benchmark.cpp \
@@ -41,7 +40,8 @@ benchmark_src_files = \
     unistd_benchmark.cpp \
 
 # Build benchmarks for the device (with bionic's .so). Run with:
-#   adb shell bionic-benchmarks
+#   adb shell bionic-benchmarks32
+#   adb shell bionic-benchmarks64
 include $(CLEAR_VARS)
 LOCAL_MODULE := bionic-benchmarks
 LOCAL_MODULE_STEM_32 := bionic-benchmarks32
@@ -49,32 +49,46 @@ 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)
+LOCAL_SRC_FILES := $(benchmark_src_files) property_benchmark.cpp
+LOCAL_CXX_STL := libc++
 include $(BUILD_EXECUTABLE)
 
-ifeq ($(HOST_OS)-$(HOST_ARCH),$(filter $(HOST_OS)-$(HOST_ARCH),linux-x86 linux-x86_64))
-ifeq ($(TARGET_ARCH),x86)
-LINKER = linker
-NATIVE_SUFFIX=32
-else
-LINKER = linker64
-NATIVE_SUFFIX=64
-endif
+# We don't build a static benchmark executable because it's not usually
+# useful. If you're trying to run the current benchmarks on an older
+# release, it's (so far at least) always because you want to measure the
+# performance of the old release's libc, and a static benchmark isn't
+# going to let you do that.
 
-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
+# Build benchmarks for the host (against glibc!). Run with:
+include $(CLEAR_VARS)
+LOCAL_MODULE := bionic-benchmarks-glibc
+LOCAL_MODULE_STEM_32 := bionic-benchmarks-glibc32
+LOCAL_MODULE_STEM_64 := bionic-benchmarks-glibc64
+LOCAL_MULTILIB := both
+LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
+LOCAL_CFLAGS += $(benchmark_c_flags)
+LOCAL_LDFLAGS += -lrt
+LOCAL_SRC_FILES := $(benchmark_src_files)
+LOCAL_CXX_STL := libc++
+include $(BUILD_HOST_EXECUTABLE)
+
+ifeq ($(HOST_OS)-$(HOST_ARCH),$(filter $(HOST_OS)-$(HOST_ARCH),linux-x86 linux-x86_64))
+include $(LOCAL_PATH)/../build/run-on-host.mk
+
+ifeq ($(TARGET_ARCH),$(filter $(TARGET_ARCH),x86 x86_64))
+bionic-benchmarks-run-on-host32: bionic-benchmarks bionic-prepare-run-on-host
 	ANDROID_DATA=$(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
+		$(TARGET_OUT_EXECUTABLES)/bionic-benchmarks32 $(BIONIC_BENCHMARKS_FLAGS)
+endif
+
+ifeq ($(TARGET_IS_64_BIT),true)
+bionic-benchmarks-run-on-host64: bionic-benchmarks bionic-prepare-run-on-host
+	ANDROID_DATA=$(TARGET_OUT_DATA) \
+	ANDROID_ROOT=$(TARGET_OUT) \
+		$(TARGET_OUT_EXECUTABLES)/bionic-benchmarks64 $(BIONIC_BENCHMARKS_FLAGS)
+endif
+
+endif
 
 endif # !BUILD_TINY_ANDROID

benchmarks/benchmark_main.cpp

@@ -19,6 +19,7 @@
 #include <regex.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <time.h>
 
 #include <string>
 #include <map>

benchmarks/math_benchmark.cpp

@@ -20,8 +20,8 @@
 #include <math.h>
 
 // Avoid optimization.
-double d;
-double v;
+volatile double d;
+volatile double v;
 
 static void BM_math_sqrt(int iters) {
   StartBenchmarkTiming();

benchmarks/pthread_benchmark.cpp

@@ -80,7 +80,7 @@ BENCHMARK(BM_pthread_mutex_lock);
 
 static void BM_pthread_mutex_lock_ERRORCHECK(int iters) {
   StopBenchmarkTiming();
-  pthread_mutex_t mutex = PTHREAD_ERRORCHECK_MUTEX_INITIALIZER;
+  pthread_mutex_t mutex = PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP;
   StartBenchmarkTiming();
 
   for (int i = 0; i < iters; ++i) {
@@ -94,7 +94,7 @@ BENCHMARK(BM_pthread_mutex_lock_ERRORCHECK);
 
 static void BM_pthread_mutex_lock_RECURSIVE(int iters) {
   StopBenchmarkTiming();
-  pthread_mutex_t mutex = PTHREAD_RECURSIVE_MUTEX_INITIALIZER;
+  pthread_mutex_t mutex = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP;
   StartBenchmarkTiming();
 
   for (int i = 0; i < iters; ++i) {
@@ -105,3 +105,35 @@ static void BM_pthread_mutex_lock_RECURSIVE(int iters) {
   StopBenchmarkTiming();
 }
 BENCHMARK(BM_pthread_mutex_lock_RECURSIVE);
+
+static void BM_pthread_rw_lock_read(int iters) {
+  StopBenchmarkTiming();
+  pthread_rwlock_t lock;
+  pthread_rwlock_init(&lock, NULL);
+  StartBenchmarkTiming();
+
+  for (int i = 0; i < iters; ++i) {
+    pthread_rwlock_rdlock(&lock);
+    pthread_rwlock_unlock(&lock);
+  }
+
+  StopBenchmarkTiming();
+  pthread_rwlock_destroy(&lock);
+}
+BENCHMARK(BM_pthread_rw_lock_read);
+
+static void BM_pthread_rw_lock_write(int iters) {
+  StopBenchmarkTiming();
+  pthread_rwlock_t lock;
+  pthread_rwlock_init(&lock, NULL);
+  StartBenchmarkTiming();
+
+  for (int i = 0; i < iters; ++i) {
+    pthread_rwlock_wrlock(&lock);
+    pthread_rwlock_unlock(&lock);
+  }
+
+  StopBenchmarkTiming();
+  pthread_rwlock_destroy(&lock);
+}
+BENCHMARK(BM_pthread_rw_lock_write);

benchmarks/stdio_benchmark.cpp

@@ -25,14 +25,19 @@
     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) {
+template <typename Fn>
+static void ReadWriteTest(int iters, int chunk_size, Fn f, bool buffered) {
   StopBenchmarkTiming();
   FILE* fp = fopen("/dev/zero", "rw");
   char* buf = new char[chunk_size];
   StartBenchmarkTiming();
 
+  if (!buffered) {
+    setvbuf(fp, 0, _IONBF, 0);
+  }
+
   for (int i = 0; i < iters; ++i) {
-    fread(buf, chunk_size, 1, fp);
+    f(buf, chunk_size, 1, fp);
   }
 
   StopBenchmarkTiming();
@@ -40,22 +45,23 @@ static void BM_stdio_fread(int iters, int chunk_size) {
   delete[] buf;
   fclose(fp);
 }
+
+static void BM_stdio_fread(int iters, int chunk_size) {
+  ReadWriteTest(iters, chunk_size, fread, true);
+}
 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);
+  ReadWriteTest(iters, chunk_size, fwrite, true);
 }
 BENCHMARK(BM_stdio_fwrite)->AT_COMMON_SIZES;
+
+static void BM_stdio_fread_unbuffered(int iters, int chunk_size) {
+  ReadWriteTest(iters, chunk_size, fread, false);
+}
+BENCHMARK(BM_stdio_fread_unbuffered)->AT_COMMON_SIZES;
+
+static void BM_stdio_fwrite_unbuffered(int iters, int chunk_size) {
+  ReadWriteTest(iters, chunk_size, fwrite, false);
+}
+BENCHMARK(BM_stdio_fwrite_unbuffered)->AT_COMMON_SIZES;

benchmarks/time_benchmark.cpp

@@ -16,7 +16,9 @@
 
 #include "benchmark.h"
 
+#include <unistd.h>
 #include <sys/syscall.h>
+#include <sys/time.h>
 #include <time.h>
 
 static void BM_time_clock_gettime(int iters) {

benchmarks/unistd_benchmark.cpp

@@ -41,6 +41,8 @@ static void BM_unistd_getpid_syscall(int iters) {
 }
 BENCHMARK(BM_unistd_getpid_syscall);
 
+#if defined(__BIONIC__)
+
 // Stop GCC optimizing out our pure function.
 /* Must not be static! */ pid_t (*gettid_fp)() = gettid;
 
@@ -55,6 +57,8 @@ static void BM_unistd_gettid(int iters) {
 }
 BENCHMARK(BM_unistd_gettid);
 
+#endif
+
 static void BM_unistd_gettid_syscall(int iters) {
   StartBenchmarkTiming();
 

build/run-on-host.mk

@@ -0,0 +1,44 @@
+#
+# 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 once
+ifneq ($(bionic_run_on_host_mk_included),true)
+bionic_run_on_host_mk_included:=true
+
+ifneq ($(TARGET_ARCH),$(filter $(TARGET_ARCH),arm mips x86))
+LINKER = linker64
+else
+LINKER = linker
+endif
+
+ifeq ($(TARGET_ARCH),$(filter $(TARGET_ARCH),x86 x86_64))
+# gtest needs ANDROID_DATA/local/tmp for death test output.
+# Make sure to create ANDROID_DATA/local/tmp if doesn't exist.
+# bionic itself should always work relative to ANDROID_DATA or ANDROID_ROOT.
+bionic-prepare-run-on-host: $(TARGET_OUT_EXECUTABLES)/$(LINKER) $(TARGET_OUT)/etc/hosts $(TARGET_OUT_EXECUTABLES)/sh
+	if [ ! -d /system ]; then \
+	  echo "Attempting to create /system"; \
+	  sudo mkdir -p -m 0777 /system; \
+	fi
+	mkdir -p $(TARGET_OUT_DATA)/local/tmp
+	ln -fs `realpath $(TARGET_OUT)/bin` /system/
+	ln -fs `realpath $(TARGET_OUT)/etc` /system/
+	ln -fs `realpath $(TARGET_OUT)/lib` /system/
+	if [ -d "$(TARGET_OUT)/lib64" ]; then \
+	  ln -fs `realpath $(TARGET_OUT)/lib64` /system/; \
+	fi
+endif
+endif

libc/Android.mk

@@ -1,5 +1,7 @@
 LOCAL_PATH := $(call my-dir)
 
+bionic_coverage := false
+
 # Make everything depend on any changes to included makefiles.
 libc_common_additional_dependencies := $(LOCAL_PATH)/Android.mk
 
@@ -38,12 +40,9 @@ endif
 # =========================================================
 libc_common_src_files := \
     bionic/bindresvport.c \
-    bionic/daemon.c \
-    bionic/err.c \
     bionic/ether_aton.c \
     bionic/ether_ntoa.c \
     bionic/fts.c \
-    bionic/gethostname.c \
     bionic/getpriority.c \
     bionic/if_indextoname.c \
     bionic/if_nametoindex.c \
@@ -51,17 +50,18 @@ libc_common_src_files := \
     bionic/ioctl.c \
     bionic/isatty.c \
     bionic/memmem.c \
-    bionic/pathconf.c \
     bionic/pututline.c \
     bionic/sched_cpualloc.c \
     bionic/sched_cpucount.c \
-    bionic/semaphore.c \
     bionic/sigblock.c \
     bionic/siginterrupt.c \
     bionic/sigsetmask.c \
     bionic/system_properties_compat.c \
+    stdio/findfp.c \
+    stdio/fread.c \
     stdio/snprintf.c\
     stdio/sprintf.c \
+    stdio/stdio_ext.cpp \
 
 # Fortify implementations of libc functions.
 libc_common_src_files += \
@@ -90,6 +90,7 @@ libc_bionic_src_files := \
     bionic/access.cpp \
     bionic/assert.cpp \
     bionic/atof.cpp \
+    bionic/bionic_systrace.cpp \
     bionic/bionic_time_conversions.cpp \
     bionic/brk.cpp \
     bionic/c16rtomb.cpp \
@@ -98,6 +99,8 @@ libc_bionic_src_files := \
     bionic/chown.cpp \
     bionic/clearenv.cpp \
     bionic/clock.cpp \
+    bionic/clock_getcpuclockid.cpp \
+    bionic/clock_nanosleep.cpp \
     bionic/clone.cpp \
     bionic/__cmsg_nxthdr.cpp \
     bionic/connect.cpp \
@@ -118,9 +121,11 @@ libc_bionic_src_files := \
     bionic/getauxval.cpp \
     bionic/getcwd.cpp \
     bionic/getentropy_linux.c \
+    bionic/gethostname.cpp \
     bionic/getpgrp.cpp \
     bionic/getpid.cpp \
     bionic/gettid.cpp \
+    bionic/__gnu_basename.cpp \
     bionic/inotify_init.cpp \
     bionic/lchown.cpp \
     bionic/lfs64_support.cpp \
@@ -132,6 +137,7 @@ libc_bionic_src_files := \
     bionic/link.cpp \
     bionic/locale.cpp \
     bionic/lstat.cpp \
+    bionic/malloc_info.cpp \
     bionic/mbrtoc16.cpp \
     bionic/mbrtoc32.cpp \
     bionic/mbstate.cpp \
@@ -141,11 +147,13 @@ libc_bionic_src_files := \
     bionic/mntent.cpp \
     bionic/NetdClientDispatch.cpp \
     bionic/open.cpp \
+    bionic/pathconf.cpp \
     bionic/pause.cpp \
     bionic/pipe.cpp \
     bionic/poll.cpp \
     bionic/posix_fadvise.cpp \
     bionic/posix_fallocate.cpp \
+    bionic/posix_madvise.cpp \
     bionic/posix_timers.cpp \
     bionic/pthread_atfork.cpp \
     bionic/pthread_attr.cpp \
@@ -180,6 +188,7 @@ libc_bionic_src_files := \
     bionic/scandir.cpp \
     bionic/sched_getaffinity.cpp \
     bionic/sched_getcpu.cpp \
+    bionic/semaphore.cpp \
     bionic/send.cpp \
     bionic/setegid.cpp \
     bionic/__set_errno.cpp \
@@ -195,24 +204,22 @@ libc_bionic_src_files := \
     bionic/signalfd.cpp \
     bionic/sigpending.cpp \
     bionic/sigprocmask.cpp \
+    bionic/sigqueue.cpp \
     bionic/sigsuspend.cpp \
+    bionic/sigtimedwait.cpp \
     bionic/sigwait.cpp \
+    bionic/sigwaitinfo.cpp \
     bionic/socket.cpp \
     bionic/stat.cpp \
     bionic/statvfs.cpp \
-    bionic/strcoll_l.cpp \
     bionic/strerror.cpp \
     bionic/strerror_r.cpp \
-    bionic/strftime_l.cpp \
     bionic/strsignal.cpp \
     bionic/strtold.cpp \
-    bionic/strtold_l.cpp \
-    bionic/strtoll_l.cpp \
-    bionic/strtoull_l.cpp \
-    bionic/strxfrm_l.cpp \
     bionic/stubs.cpp \
     bionic/symlink.cpp \
     bionic/sysconf.cpp \
+    bionic/sysinfo.cpp \
     bionic/syslog.cpp \
     bionic/sys_siglist.c \
     bionic/sys_signame.c \
@@ -238,9 +245,6 @@ libc_upstream_freebsd_src_files := \
     upstream-freebsd/lib/libc/gen/ldexp.c \
     upstream-freebsd/lib/libc/gen/sleep.c \
     upstream-freebsd/lib/libc/gen/usleep.c \
-    upstream-freebsd/lib/libc/stdio/fclose.c \
-    upstream-freebsd/lib/libc/stdio/flags.c \
-    upstream-freebsd/lib/libc/stdio/fopen.c \
     upstream-freebsd/lib/libc/stdlib/abs.c \
     upstream-freebsd/lib/libc/stdlib/getopt_long.c \
     upstream-freebsd/lib/libc/stdlib/imaxabs.c \
@@ -286,8 +290,8 @@ libc_upstream_netbsd_src_files := \
     upstream-netbsd/lib/libc/stdlib/div.c \
     upstream-netbsd/lib/libc/stdlib/drand48.c \
     upstream-netbsd/lib/libc/stdlib/erand48.c \
-    upstream-netbsd/lib/libc/stdlib/insque.c \
     upstream-netbsd/lib/libc/stdlib/jrand48.c \
+    upstream-netbsd/lib/libc/stdlib/lcong48.c \
     upstream-netbsd/lib/libc/stdlib/ldiv.c \
     upstream-netbsd/lib/libc/stdlib/lldiv.c \
     upstream-netbsd/lib/libc/stdlib/lrand48.c \
@@ -295,14 +299,12 @@ libc_upstream_netbsd_src_files := \
     upstream-netbsd/lib/libc/stdlib/nrand48.c \
     upstream-netbsd/lib/libc/stdlib/_rand48.c \
     upstream-netbsd/lib/libc/stdlib/rand_r.c \
-    upstream-netbsd/lib/libc/stdlib/remque.c \
     upstream-netbsd/lib/libc/stdlib/seed48.c \
     upstream-netbsd/lib/libc/stdlib/srand48.c \
     upstream-netbsd/lib/libc/string/memccpy.c \
     upstream-netbsd/lib/libc/string/strcasestr.c \
     upstream-netbsd/lib/libc/string/strcoll.c \
     upstream-netbsd/lib/libc/string/strxfrm.c \
-    upstream-netbsd/lib/libc/unistd/killpg.c \
 
 libc_upstream_openbsd_gdtoa_src_files := \
     upstream-openbsd/android/gdtoa_support.cpp \
@@ -332,10 +334,14 @@ libc_upstream_openbsd_gdtoa_src_files_64 := \
     upstream-openbsd/lib/libc/gdtoa/strtorQ.c \
 
 libc_upstream_openbsd_src_files := \
+    upstream-openbsd/lib/libc/compat-43/killpg.c \
     upstream-openbsd/lib/libc/crypt/arc4random.c \
     upstream-openbsd/lib/libc/crypt/arc4random_uniform.c \
     upstream-openbsd/lib/libc/gen/alarm.c \
     upstream-openbsd/lib/libc/gen/ctype_.c \
+    upstream-openbsd/lib/libc/gen/daemon.c \
+    upstream-openbsd/lib/libc/gen/err.c \
+    upstream-openbsd/lib/libc/gen/errx.c \
     upstream-openbsd/lib/libc/gen/exec.c \
     upstream-openbsd/lib/libc/gen/fnmatch.c \
     upstream-openbsd/lib/libc/gen/ftok.c \
@@ -345,6 +351,12 @@ libc_upstream_openbsd_src_files := \
     upstream-openbsd/lib/libc/gen/time.c \
     upstream-openbsd/lib/libc/gen/tolower_.c \
     upstream-openbsd/lib/libc/gen/toupper_.c \
+    upstream-openbsd/lib/libc/gen/verr.c \
+    upstream-openbsd/lib/libc/gen/verrx.c \
+    upstream-openbsd/lib/libc/gen/vwarn.c \
+    upstream-openbsd/lib/libc/gen/vwarnx.c \
+    upstream-openbsd/lib/libc/gen/warn.c \
+    upstream-openbsd/lib/libc/gen/warnx.c \
     upstream-openbsd/lib/libc/locale/btowc.c \
     upstream-openbsd/lib/libc/locale/mbrlen.c \
     upstream-openbsd/lib/libc/locale/mbstowcs.c \
@@ -378,6 +390,7 @@ libc_upstream_openbsd_src_files := \
     upstream-openbsd/lib/libc/stdio/asprintf.c \
     upstream-openbsd/lib/libc/stdio/clrerr.c \
     upstream-openbsd/lib/libc/stdio/dprintf.c \
+    upstream-openbsd/lib/libc/stdio/fclose.c \
     upstream-openbsd/lib/libc/stdio/fdopen.c \
     upstream-openbsd/lib/libc/stdio/feof.c \
     upstream-openbsd/lib/libc/stdio/ferror.c \
@@ -389,14 +402,15 @@ libc_upstream_openbsd_src_files := \
     upstream-openbsd/lib/libc/stdio/fgetwc.c \
     upstream-openbsd/lib/libc/stdio/fgetws.c \
     upstream-openbsd/lib/libc/stdio/fileno.c \
-    upstream-openbsd/lib/libc/stdio/findfp.c \
+    upstream-openbsd/lib/libc/stdio/flags.c \
+    upstream-openbsd/lib/libc/stdio/fmemopen.c \
+    upstream-openbsd/lib/libc/stdio/fopen.c \
     upstream-openbsd/lib/libc/stdio/fprintf.c \
     upstream-openbsd/lib/libc/stdio/fpurge.c \
     upstream-openbsd/lib/libc/stdio/fputc.c \
     upstream-openbsd/lib/libc/stdio/fputs.c \
     upstream-openbsd/lib/libc/stdio/fputwc.c \
     upstream-openbsd/lib/libc/stdio/fputws.c \
-    upstream-openbsd/lib/libc/stdio/fread.c \
     upstream-openbsd/lib/libc/stdio/freopen.c \
     upstream-openbsd/lib/libc/stdio/fscanf.c \
     upstream-openbsd/lib/libc/stdio/fseek.c \
@@ -418,6 +432,8 @@ libc_upstream_openbsd_src_files := \
     upstream-openbsd/lib/libc/stdio/getwchar.c \
     upstream-openbsd/lib/libc/stdio/makebuf.c \
     upstream-openbsd/lib/libc/stdio/mktemp.c \
+    upstream-openbsd/lib/libc/stdio/open_memstream.c \
+    upstream-openbsd/lib/libc/stdio/open_wmemstream.c \
     upstream-openbsd/lib/libc/stdio/perror.c \
     upstream-openbsd/lib/libc/stdio/printf.c \
     upstream-openbsd/lib/libc/stdio/putc.c \
@@ -466,7 +482,10 @@ libc_upstream_openbsd_src_files := \
     upstream-openbsd/lib/libc/stdlib/atoll.c \
     upstream-openbsd/lib/libc/stdlib/exit.c \
     upstream-openbsd/lib/libc/stdlib/getenv.c \
+    upstream-openbsd/lib/libc/stdlib/insque.c \
     upstream-openbsd/lib/libc/stdlib/lsearch.c \
+    upstream-openbsd/lib/libc/stdlib/reallocarray.c \
+    upstream-openbsd/lib/libc/stdlib/remque.c \
     upstream-openbsd/lib/libc/stdlib/setenv.c \
     upstream-openbsd/lib/libc/stdlib/strtoimax.c \
     upstream-openbsd/lib/libc/stdlib/strtol.c \
@@ -503,7 +522,10 @@ ifneq ($(TARGET_USES_LOGD),false)
 libc_common_cflags += -DTARGET_USES_LOGD
 endif
 
+use_clang := $(USE_CLANG_PLATFORM_BUILD)
+ifeq ($(use_clang),)
   use_clang := false
+endif
 
 # Try to catch typical 32-bit assumptions that break with 64-bit pointers.
 libc_common_cflags += \
@@ -532,13 +554,6 @@ ifneq ($(BOARD_MALLOC_ALIGNMENT),)
   libc_common_cflags += -DMALLOC_ALIGNMENT=$(BOARD_MALLOC_ALIGNMENT)
 endif
 
-# Define ANDROID_SMP appropriately.
-ifeq ($(TARGET_CPU_SMP),true)
-    libc_common_cflags += -DANDROID_SMP=1
-else
-    libc_common_cflags += -DANDROID_SMP=0
-endif
-
 # Define some common conlyflags
 libc_common_conlyflags := \
     -std=gnu99
@@ -583,7 +598,10 @@ LOCAL_C_INCLUDES := $(libc_common_c_includes)
 LOCAL_MODULE := libc_stack_protector
 LOCAL_CLANG := $(use_clang)
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
+LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
+LOCAL_ADDRESS_SANITIZER := false
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 $(eval $(call patch-up-arch-specific-flags,LOCAL_CFLAGS,libc_common_cflags))
 include $(BUILD_STATIC_LIBRARY)
@@ -621,7 +639,10 @@ LOCAL_C_INCLUDES := $(libc_common_c_includes) $(LOCAL_PATH)/tzcode/
 LOCAL_MODULE := libc_tzcode
 LOCAL_CLANG := $(use_clang)
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
+LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
+LOCAL_ADDRESS_SANITIZER := false
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 $(eval $(call patch-up-arch-specific-flags,LOCAL_CFLAGS,libc_common_cflags))
 include $(BUILD_STATIC_LIBRARY)
@@ -639,7 +660,13 @@ LOCAL_SRC_FILES := \
     upstream-netbsd/lib/libc/isc/ev_timers.c \
     upstream-netbsd/lib/libc/resolv/mtctxres.c \
 
-LOCAL_CFLAGS := \
+# We use the OpenBSD res_random.
+LOCAL_CFLAGS += \
+    -Dres_randomid=__res_randomid
+LOCAL_SRC_FILES += \
+    upstream-openbsd/lib/libc/net/res_random.c \
+
+LOCAL_CFLAGS += \
     $(libc_common_cflags) \
     -DANDROID_CHANGES \
     -DINET6 \
@@ -657,7 +684,10 @@ LOCAL_C_INCLUDES := $(libc_common_c_includes)
 LOCAL_MODULE := libc_dns
 LOCAL_CLANG := $(use_clang)
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
+LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
+LOCAL_ADDRESS_SANITIZER := false
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 $(eval $(call patch-up-arch-specific-flags,LOCAL_CFLAGS,libc_common_cflags))
 include $(BUILD_STATIC_LIBRARY)
@@ -686,9 +716,13 @@ LOCAL_C_INCLUDES := $(libc_common_c_includes)
 LOCAL_MODULE := libc_freebsd
 LOCAL_CLANG := $(use_clang)
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
+LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
+LOCAL_ADDRESS_SANITIZER := false
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 $(eval $(call patch-up-arch-specific-flags,LOCAL_CFLAGS,libc_common_cflags))
+$(eval $(call patch-up-arch-specific-flags,LOCAL_SRC_FILES,libc_freebsd_src_files))
 include $(BUILD_STATIC_LIBRARY)
 
 
@@ -716,7 +750,10 @@ LOCAL_C_INCLUDES := $(libc_common_c_includes)
 LOCAL_MODULE := libc_netbsd
 LOCAL_CLANG := $(use_clang)
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
+LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
+LOCAL_ADDRESS_SANITIZER := false
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 $(eval $(call patch-up-arch-specific-flags,LOCAL_CFLAGS,libc_common_cflags))
 $(eval $(call patch-up-arch-specific-flags,LOCAL_SRC_FILES,libc_netbsd_src_files))
@@ -733,9 +770,18 @@ include $(BUILD_STATIC_LIBRARY)
 include $(CLEAR_VARS)
 
 LOCAL_SRC_FILES := $(libc_upstream_openbsd_src_files)
+ifneq (,$(filter $(TARGET_ARCH),x86 x86_64))
+  # Clang has wrong long double size or LDBL_MANT_DIG, http://b/17163651.
+  LOCAL_CLANG := false
+else
+  LOCAL_CLANG := $(use_clang)
+endif
+
 LOCAL_CFLAGS := \
     $(libc_common_cflags) \
-    -Wno-sign-compare -Wno-uninitialized -Wno-unused-parameter \
+    -Wno-sign-compare \
+    -Wno-uninitialized \
+    -Wno-unused-parameter \
     -I$(LOCAL_PATH)/private \
     -I$(LOCAL_PATH)/upstream-openbsd/android/include \
     -I$(LOCAL_PATH)/upstream-openbsd/lib/libc/include \
@@ -746,11 +792,14 @@ LOCAL_CONLYFLAGS := $(libc_common_conlyflags)
 LOCAL_CPPFLAGS := $(libc_common_cppflags)
 LOCAL_C_INCLUDES := $(libc_common_c_includes)
 LOCAL_MODULE := libc_openbsd
-LOCAL_CLANG := $(use_clang)
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
+LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
+LOCAL_ADDRESS_SANITIZER := false
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 $(eval $(call patch-up-arch-specific-flags,LOCAL_CFLAGS,libc_common_cflags))
+$(eval $(call patch-up-arch-specific-flags,LOCAL_SRC_FILES,libc_openbsd_src_files))
 include $(BUILD_STATIC_LIBRARY)
 
 
@@ -765,6 +814,13 @@ include $(CLEAR_VARS)
 
 LOCAL_SRC_FILES_32 := $(libc_upstream_openbsd_gdtoa_src_files_32)
 LOCAL_SRC_FILES_64 := $(libc_upstream_openbsd_gdtoa_src_files_64)
+ifneq (,$(filter $(TARGET_ARCH),x86 x86_64))
+  # Clang has wrong long double size or LDBL_MANT_DIG, http://b/17163651.
+  LOCAL_CLANG := false
+else
+  LOCAL_CLANG := $(use_clang)
+endif
+
 LOCAL_CFLAGS := \
     $(libc_common_cflags) \
     -Wno-sign-compare -Wno-uninitialized \
@@ -778,9 +834,11 @@ LOCAL_CONLYFLAGS := $(libc_common_conlyflags)
 LOCAL_CPPFLAGS := $(libc_common_cppflags)
 LOCAL_C_INCLUDES := $(libc_common_c_includes)
 LOCAL_MODULE := libc_gdtoa
-LOCAL_CLANG := $(use_clang)
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
+LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
+LOCAL_ADDRESS_SANITIZER := false
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 $(eval $(call patch-up-arch-specific-flags,LOCAL_CFLAGS,libc_common_cflags))
 include $(BUILD_STATIC_LIBRARY)
@@ -796,13 +854,23 @@ LOCAL_SRC_FILES := $(libc_bionic_src_files)
 LOCAL_CFLAGS := $(libc_common_cflags) \
     -Wframe-larger-than=2048 \
 
+# ssse3-strcmp-slm.S does not compile with Clang.
+LOCAL_CLANG_ASFLAGS_x86_64 += -no-integrated-as
+
+# memcpy.S, memchr.S, etc. do not compile with Clang.
+LOCAL_CLANG_ASFLAGS_arm += -no-integrated-as
+LOCAL_CLANG_ASFLAGS_arm64 += -no-integrated-as
+
 LOCAL_CONLYFLAGS := $(libc_common_conlyflags)
 LOCAL_CPPFLAGS := $(libc_common_cppflags)
-LOCAL_C_INCLUDES := $(libc_common_c_includes)
+LOCAL_C_INCLUDES := $(libc_common_c_includes) bionic/libstdc++/include
 LOCAL_MODULE := libc_bionic
 LOCAL_CLANG := $(use_clang)
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
+LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
+LOCAL_ADDRESS_SANITIZER := false
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 $(eval $(call patch-up-arch-specific-flags,LOCAL_CFLAGS,libc_common_cflags))
 $(eval $(call patch-up-arch-specific-flags,LOCAL_SRC_FILES,libc_bionic_src_files))
@@ -821,12 +889,14 @@ LOCAL_CFLAGS := $(libc_common_cflags) \
 
 LOCAL_CONLYFLAGS := $(libc_common_conlyflags)
 LOCAL_CPPFLAGS := $(libc_common_cppflags)
-LOCAL_C_INCLUDES := $(libc_common_c_includes)
+LOCAL_C_INCLUDES := $(libc_common_c_includes) bionic/libstdc++/include
 LOCAL_MODULE := libc_cxa
-# GCC refuses to hide new/delete
-LOCAL_CLANG := true
+LOCAL_CLANG := true # GCC refuses to hide new/delete
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
+LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
+LOCAL_ADDRESS_SANITIZER := false
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 include $(BUILD_STATIC_LIBRARY)
 
@@ -844,7 +914,10 @@ endif
 LOCAL_MODULE := libc_syscalls
 LOCAL_CLANG := $(use_clang)
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
+LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
+LOCAL_ADDRESS_SANITIZER := false
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 include $(BUILD_STATIC_LIBRARY)
 
@@ -863,7 +936,10 @@ LOCAL_MODULE := libc_aeabi
 LOCAL_CLANG := $(use_clang)
 LOCAL_CFLAGS := $(libc_common_cflags) -fno-builtin
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
+LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
+LOCAL_ADDRESS_SANITIZER := false
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 include $(BUILD_STATIC_LIBRARY)
 
@@ -900,10 +976,13 @@ ifneq ($(MALLOC_IMPL),dlmalloc)
 LOCAL_WHOLE_STATIC_LIBRARIES += libjemalloc
 endif
 
+LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
 
 # TODO: split out the asflags.
 LOCAL_ASFLAGS := $(LOCAL_CFLAGS)
+LOCAL_ADDRESS_SANITIZER := false
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 $(eval $(call patch-up-arch-specific-flags,LOCAL_CFLAGS,libc_common_cflags))
 $(eval $(call patch-up-arch-specific-flags,LOCAL_SRC_FILES,libc_common_src_files))
@@ -939,7 +1018,10 @@ LOCAL_MODULE := libc_nomalloc
 LOCAL_CLANG := $(use_clang)
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
 LOCAL_WHOLE_STATIC_LIBRARIES := libc_common
+LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
+LOCAL_ADDRESS_SANITIZER := false
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 $(eval $(call patch-up-arch-specific-flags,LOCAL_CFLAGS,libc_common_cflags))
 $(eval $(call patch-up-arch-specific-flags,LOCAL_SRC_FILES,libc_arch_static_src_files))
@@ -960,6 +1042,9 @@ LOCAL_CPPFLAGS := $(libc_common_cppflags)
 LOCAL_C_INCLUDES := $(libc_common_c_includes)
 LOCAL_MODULE := libc_malloc
 LOCAL_CLANG := $(use_clang)
+LOCAL_CXX_STL := none
+LOCAL_ADDRESS_SANITIZER := false
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
 include $(BUILD_STATIC_LIBRARY)
 
@@ -985,7 +1070,10 @@ LOCAL_MODULE := libc
 LOCAL_CLANG := $(use_clang)
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
 LOCAL_WHOLE_STATIC_LIBRARIES := libc_common
+LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
+LOCAL_ADDRESS_SANITIZER := false
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 $(eval $(call patch-up-arch-specific-flags,LOCAL_CFLAGS,libc_common_cflags))
 $(eval $(call patch-up-arch-specific-flags,LOCAL_SRC_FILES,libc_arch_static_src_files))
@@ -1027,6 +1115,7 @@ LOCAL_STRIP_MODULE := keep_symbols
 
 LOCAL_SHARED_LIBRARIES := libdl
 LOCAL_WHOLE_STATIC_LIBRARIES := libc_common
+LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
 
 # We'd really like to do this for all architectures, but since this wasn't done
@@ -1046,6 +1135,8 @@ LOCAL_SRC_FILES_arm += \
     arch-common/bionic/crtbegin_so.c \
     arch-arm/bionic/atexit_legacy.c \
     arch-common/bionic/crtend_so.S
+LOCAL_ADDRESS_SANITIZER := false
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 include $(BUILD_SHARED_LIBRARY)
 
@@ -1063,10 +1154,7 @@ ifneq ($(TARGET_BUILD_VARIANT),user)
 # ========================================================
 include $(CLEAR_VARS)
 
-LOCAL_CFLAGS := \
-    $(libc_common_cflags) \
-    -DMALLOC_LEAK_CHECK \
-
+LOCAL_CFLAGS := $(libc_common_cflags)
 LOCAL_CONLYFLAGS := $(libc_common_conlyflags)
 LOCAL_CPPFLAGS := $(libc_common_cppflags)
 
@@ -1086,14 +1174,17 @@ LOCAL_CLANG := $(use_clang)
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
 
 LOCAL_SHARED_LIBRARIES := libc libdl
+LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
 # Only need this for arm since libc++ uses its own unwind code that
 # doesn't mix with the other default unwind code.
-LOCAL_STATIC_LIBRARIES_arm := libc++
+LOCAL_STATIC_LIBRARIES_arm := libunwind_llvm libc++abi
 LOCAL_ALLOW_UNDEFINED_SYMBOLS := true
 
 # Don't install on release build
 LOCAL_MODULE_TAGS := eng debug
+LOCAL_ADDRESS_SANITIZER := false
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 $(eval $(call patch-up-arch-specific-flags,LOCAL_CFLAGS,libc_common_cflags))
 include $(BUILD_SHARED_LIBRARY)
@@ -1122,10 +1213,13 @@ LOCAL_CLANG := $(use_clang)
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
 
 LOCAL_SHARED_LIBRARIES := libc libdl
+LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
 
 # Don't install on release build
 LOCAL_MODULE_TAGS := eng debug
+LOCAL_ADDRESS_SANITIZER := false
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 $(eval $(call patch-up-arch-specific-flags,LOCAL_CFLAGS,libc_common_cflags))
 include $(BUILD_SHARED_LIBRARY)
@@ -1142,24 +1236,32 @@ libstdcxx_common_src_files := \
     bionic/libc_logging.cpp \
 
 include $(CLEAR_VARS)
-LOCAL_C_INCLUDES := $(libc_common_c_includes)
+LOCAL_C_INCLUDES := $(libc_common_c_includes) bionic/libstdc++/include
 LOCAL_CFLAGS := $(libc_common_cflags)
+LOCAL_CPPFLAGS := $(libc_common_cppflags)
 LOCAL_SRC_FILES := $(libstdcxx_common_src_files)
 LOCAL_MODULE:= libstdc++
 LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
+LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES := libc
+LOCAL_ADDRESS_SANITIZER := false
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 include $(BUILD_SHARED_LIBRARY)
 
 # ========================================================
 # libstdc++.a
 # ========================================================
 include $(CLEAR_VARS)
-LOCAL_C_INCLUDES := $(libc_common_c_includes)
+LOCAL_C_INCLUDES := $(libc_common_c_includes) bionic/libstdc++/include
 LOCAL_CFLAGS := $(libc_common_cflags)
+LOCAL_CPPFLAGS := $(libc_common_cppflags)
 LOCAL_SRC_FILES := $(libstdcxx_common_src_files)
 LOCAL_MODULE:= libstdc++
 LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
+LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES := libc
+LOCAL_ADDRESS_SANITIZER := false
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 include $(BUILD_STATIC_LIBRARY)
 
 

libc/NOTICE

@@ -2539,35 +2539,6 @@ SUCH DAMAGE.
 
 -------------------------------------------------------------------
 
-Copyright (c) 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.
-
--------------------------------------------------------------------
-
 Copyright (c) 1993 Christopher G. Demetriou
 All rights reserved.
 
@@ -3131,38 +3102,6 @@ SUCH DAMAGE.
 
 -------------------------------------------------------------------
 
-Copyright (c) 1999 Kungliga Tekniska Högskolan
-(Royal Institute of Technology, Stockholm, Sweden).
-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 KTH 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 KTH AND ITS 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 KTH OR ITS 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
-
--------------------------------------------------------------------
-
 Copyright (c) 2000 Ben Harris.
 Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
 All rights reserved.
@@ -4422,6 +4361,39 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 -------------------------------------------------------------------
 
+Copyright (c) 2011 Martin Pieuchot <mpi@openbsd.org>
+
+Permission to use, copy, modify, and distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+-------------------------------------------------------------------
+
+Copyright (c) 2011 Martin Pieuchot <mpi@openbsd.org>
+Copyright (c) 2009 Ted Unangst
+
+Permission to use, copy, modify, and distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+-------------------------------------------------------------------
+
 Copyright (c) 2011 The Android Open Source Project
 Copyright (c) 2008 ARM Ltd
 All rights reserved.
@@ -4853,6 +4825,42 @@ SUCH DAMAGE.
 
 -------------------------------------------------------------------
 
+Copyright 1997 Niels Provos <provos@physnet.uni-hamburg.de>
+Copyright 2008 Damien Miller <djm@openbsd.org>
+All rights reserved.
+
+Theo de Raadt <deraadt@openbsd.org> came up with the idea of using
+such a mathematical system to generate more random (yet non-repeating)
+ids to solve the resolver/named problem.  But Niels designed the
+actual system based on the constraints.
+
+Later modified by Damien Miller to wrap the LCG output in a 15-bit
+permutation generator based on a Luby-Rackoff block cipher. This
+ensures the output is non-repeating and preserves the MSB twiddle
+trick, but makes it more resistant to LCG prediction.
+
+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.
+
+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 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 2000 David E. O'Brien, John D. Polstra.
 All rights reserved.
 

libc/SYSCALLS.TXT

@@ -101,7 +101,7 @@ 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         madvise(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
@@ -202,9 +202,9 @@ int     swapoff(const char*) 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_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           clock_settime(clockid_t, const struct timespec*)  all
+int           clock_getres(clockid_t, struct timespec*)   all
+int           __clock_nanosleep:clock_nanosleep(clockid_t, int, const struct timespec*, struct timespec*)  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
@@ -223,6 +223,7 @@ 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     __rt_sigqueueinfo:rt_sigqueueinfo(pid_t, int, siginfo_t*)  all
 int     __signalfd4:signalfd4(int, const sigset_t*, size_t, int)  all
 
 # sockets
@@ -313,6 +314,8 @@ int __set_tid_address:set_tid_address(int*)  all
 int setfsgid(gid_t)  all
 int setfsuid(uid_t)  all
 
+int sethostname(const char*, size_t)  all
+
 pid_t wait4(pid_t, int*, int, struct rusage*)  all
 int __waitid:waitid(int, pid_t, struct siginfo_t*, int, void*)  all
 
@@ -321,7 +324,7 @@ int     __set_tls:__ARM_NR_set_tls(void*)                                 arm
 int     cacheflush:__ARM_NR_cacheflush(long start, long end, long flags)  arm
 
 # 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) mips
 int     __set_tls:set_thread_area(void*) mips,mips64
 
 # x86-specific

libc/arch-arm/arm.mk

@@ -1,22 +1,35 @@
-# arm specific configs
+# 32-bit arm.
 
-# These are used by the 32-bit targets, but not the 64-bit ones.
-libc_common_src_files_arm := \
+#
+# Various kinds of LP32 cruft.
+#
+
+libc_bionic_src_files_arm += \
+    bionic/mmap.cpp \
+
+libc_common_src_files_arm += \
     bionic/legacy_32_bit_support.cpp \
     bionic/ndk_cruft.cpp \
     bionic/time64.c \
+
+libc_netbsd_src_files_arm += \
+    upstream-netbsd/common/lib/libc/hash/sha1/sha1.c \
+
+libc_openbsd_src_files_arm += \
     upstream-openbsd/lib/libc/stdio/putw.c \
 
-# These are shared by all the 32-bit targets, but not the 64-bit ones.
-libc_bionic_src_files_arm := \
-    bionic/mmap.cpp
+#
+# Default implementations of functions that are commonly optimized.
+#
 
-libc_common_src_files_arm += \
+libc_bionic_src_files_arm += \
     bionic/memchr.c \
     bionic/memrchr.c \
     bionic/strchr.cpp \
     bionic/strnlen.c \
     bionic/strrchr.cpp \
+
+libc_freebsd_src_files_arm += \
     upstream-freebsd/lib/libc/string/wcscat.c \
     upstream-freebsd/lib/libc/string/wcschr.c \
     upstream-freebsd/lib/libc/string/wcscmp.c \
@@ -25,8 +38,9 @@ libc_common_src_files_arm += \
     upstream-freebsd/lib/libc/string/wcsrchr.c \
     upstream-freebsd/lib/libc/string/wmemcmp.c \
     upstream-freebsd/lib/libc/string/wmemmove.c \
+
+libc_openbsd_src_files_arm += \
     upstream-openbsd/lib/libc/string/bcopy.c \
-    upstream-openbsd/lib/libc/string/stpcpy.c \
     upstream-openbsd/lib/libc/string/stpncpy.c \
     upstream-openbsd/lib/libc/string/strlcat.c \
     upstream-openbsd/lib/libc/string/strlcpy.c \
@@ -34,20 +48,10 @@ libc_common_src_files_arm += \
     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 \
+# Inherently architecture-specific code.
+#
 
-libc_common_cflags_arm := -DSOFTFLOAT
-
-##########################################
-### CPU specific source files
 libc_bionic_src_files_arm += \
     arch-arm/bionic/abort_arm.S \
     arch-arm/bionic/atomics_arm.c \
@@ -55,17 +59,13 @@ libc_bionic_src_files_arm += \
     arch-arm/bionic/_exit_with_stack_teardown.S \
     arch-arm/bionic/libgcc_compat.c \
     arch-arm/bionic/memcmp.S \
-    arch-arm/bionic/_setjmp.S \
+    arch-arm/bionic/__restore.S \
     arch-arm/bionic/setjmp.S \
-    arch-arm/bionic/sigsetjmp.S \
     arch-arm/bionic/syscall.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
 
-libc_netbsd_src_files_arm := \
-    upstream-netbsd/common/lib/libc/hash/sha1/sha1.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-arm/bionic/__aeabi.c

@@ -39,6 +39,9 @@
 
 extern int __cxa_atexit(void (*)(void*), void*, void*);
 
+// All of these are weak symbols to avoid multiple definition errors when
+// linking with libstdc++-v3 or compiler-rt.
+
 /* 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.
@@ -47,35 +50,35 @@ extern int __cxa_atexit(void (*)(void*), void*, void*);
  * variable from the shared object that contains the constructor/destructor
  */
 
-// Make this a weak symbol to avoid a multiple definition error when linking with libstdc++-v3.
 int __attribute__((weak))
 __aeabi_atexit(void *object, void (*destructor) (void *), void *dso_handle) {
     return __cxa_atexit(destructor, object, dso_handle);
 }
 
 
-void __aeabi_memcpy8(void *dest, const void *src, size_t n) {
+void __attribute__((weak))
+__aeabi_memcpy8(void *dest, const void *src, size_t n) {
     memcpy(dest, src, n);
 }
 
-void __aeabi_memcpy4(void *dest, const void *src, size_t n) {
+void __attribute__((weak)) __aeabi_memcpy4(void *dest, const void *src, size_t n) {
     memcpy(dest, src, n);
 }
 
-void __aeabi_memcpy(void *dest, const void *src, size_t n) {
+void __attribute__((weak)) __aeabi_memcpy(void *dest, const void *src, size_t n) {
     memcpy(dest, src, n);
 }
 
 
-void __aeabi_memmove8(void *dest, const void *src, size_t n) {
+void __attribute__((weak)) __aeabi_memmove8(void *dest, const void *src, size_t n) {
     memmove(dest, src, n);
 }
 
-void __aeabi_memmove4(void *dest, const void *src, size_t n) {
+void __attribute__((weak)) __aeabi_memmove4(void *dest, const void *src, size_t n) {
     memmove(dest, src, n);
 }
 
-void __aeabi_memmove(void *dest, const void *src, size_t n) {
+void __attribute__((weak)) __aeabi_memmove(void *dest, const void *src, size_t n) {
     memmove(dest, src, n);
 }
 
@@ -84,27 +87,27 @@ void __aeabi_memmove(void *dest, const void *src, size_t n) {
  *  This allows __aeabi_memclr to tail-call __aeabi_memset
  */
 
-void __aeabi_memset8(void *dest, size_t n, int c) {
+void __attribute__((weak)) __aeabi_memset8(void *dest, size_t n, int c) {
     memset(dest, c, n);
 }
 
-void __aeabi_memset4(void *dest, size_t n, int c) {
+void __attribute__((weak)) __aeabi_memset4(void *dest, size_t n, int c) {
     memset(dest, c, n);
 }
 
-void __aeabi_memset(void *dest, size_t n, int c) {
+void __attribute__((weak)) __aeabi_memset(void *dest, size_t n, int c) {
     memset(dest, c, n);
 }
 
 
-void __aeabi_memclr8(void *dest, size_t n) {
+void __attribute__((weak)) __aeabi_memclr8(void *dest, size_t n) {
     __aeabi_memset8(dest, n, 0);
 }
 
-void __aeabi_memclr4(void *dest, size_t n) {
+void __attribute__((weak)) __aeabi_memclr4(void *dest, size_t n) {
     __aeabi_memset4(dest, n, 0);
 }
 
-void __aeabi_memclr(void *dest, size_t n) {
+void __attribute__((weak)) __aeabi_memclr(void *dest, size_t n) {
     __aeabi_memset(dest, n, 0);
 }

libc/arch-arm/bionic/__bionic_clone.S

@@ -42,13 +42,14 @@ ENTRY(__bionic_clone)
     # load extra parameters
     ldmfd   ip, {r4, r5, r6}
 
-    # store 'fn' and 'arg' to the child stack
-    str     r5, [r1, #-4]
-    str     r6, [r1, #-8]
+    # Push 'fn' and 'arg' onto the child stack.
+    stmdb   r1!, {r5, r6}
 
-    # System call
+    # Make the system call.
     ldr     r7, =__NR_clone
     swi     #0
+
+    # Are we the child?
     movs    r0, r0
     beq     1f
 
@@ -62,8 +63,8 @@ ENTRY(__bionic_clone)
 1:  # The child.
     # Setting lr to 0 will make the unwinder stop at __start_thread
     mov    lr, #0
-    ldr    r0, [sp, #-4]
-    ldr    r1, [sp, #-8]
+    # Call __start_thread with the 'fn' and 'arg' we stored on the child stack.
+    pop    {r0, r1}
     b      __start_thread
 END(__bionic_clone)
 .hidden __bionic_clone

libc/arch-arm/bionic/__restore.S

@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2014 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>
+
+// gdb is smart enough to unwind through signal frames with just the regular
+// CFI information but libgcc and libunwind both need extra help. We do this
+// by using .fnstart/.fnend and inserting a nop before both __restore and
+// __restore_rt (but covered by the .fnstart/.fnend) so that although they're
+// not inside the functions from objdump's point of view, an unwinder that
+// blindly looks at the previous instruction (but is then smart enough to check
+// the DWARF information to find out where it landed) gets the right answer.
+
+// We need to place .fnstart ourselves (but we may as well keep the free .fnend).
+#undef __bionic_asm_custom_entry
+#define __bionic_asm_custom_entry(f)
+
+  .fnstart
+  .save {r0-r15}
+  .pad #32
+  nop
+ENTRY_PRIVATE(__restore)
+  // This function must have exactly this instruction sequence.
+  mov r7, #__NR_sigreturn
+  swi #0
+END(__restore)
+
+  .fnstart
+  .save {r0-r15}
+  .pad #160
+  nop
+ENTRY_PRIVATE(__restore_rt)
+  // This function must have exactly this instruction sequence.
+  mov r7, #__NR_rt_sigreturn
+  swi #0
+END(__restore_rt)

libc/arch-arm/bionic/_setjmp.S

@@ -1,113 +0,0 @@
-/*	$OpenBSD: _setjmp.S,v 1.2 2004/02/01 05:40:52 drahn Exp $	*/
-/*	$NetBSD: _setjmp.S,v 1.5 2003/04/05 23:08:51 bjh21 Exp $	*/
-
-/*
- * Copyright (c) 1997 Mark Brinicombe
- * Copyright (c) 2010 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:
- * 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 Mark Brinicombe
- * 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 AUTHOR 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 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 <private/bionic_asm.h>
-#include <machine/setjmp.h>
-#include <machine/cpu-features.h>
-
-/*
- * C library -- _setjmp, _longjmp
- *
- *	_longjmp(a,v)
- * will generate a "return(v)" from the last call to
- *	_setjmp(a)
- * by restoring registers from the stack.
- * The previous signal state is NOT restored.
- *
- * Note: r0 is the return value
- *       r1-r3 are scratch registers in functions
- */
-
-ENTRY(_setjmp)
-	ldr	r1, .L_setjmp_magic
-	str	r1, [r0, #(_JB_MAGIC * 4)]
-
-	/* Store core registers */
-	add     r1, r0, #(_JB_CORE_BASE * 4)
-	stmia   r1, {r4-r14}
-
-#ifdef __ARM_HAVE_VFP
-	/* Store floating-point registers */
-	add     r1, r0, #(_JB_FLOAT_BASE * 4)
-	vstmia  r1, {d8-d15}
-	/* Store floating-point state */
-	fmrx    r1, fpscr
-	str     r1, [r0, #(_JB_FLOAT_STATE * 4)]
-#endif  /* __ARM_HAVE_VFP */
-
-        mov	r0, #0x00000000
-        bx      lr
-END(_setjmp)
-
-.L_setjmp_magic:
-	.word	_JB_MAGIC__SETJMP
-
-ENTRY(_longjmp)
-	ldr	r2, .L_setjmp_magic
-	ldr	r3, [r0, #(_JB_MAGIC * 4)]
-	teq	r2, r3
-	bne	botch
-
-#ifdef __ARM_HAVE_VFP
-	/* Restore floating-point registers */
-	add     r2, r0, #(_JB_FLOAT_BASE * 4)
-	vldmia  r2, {d8-d15}
-	/* Restore floating-point state */
-	ldr     r2, [r0, #(_JB_FLOAT_STATE * 4)]
-	fmxr    fpscr, r2
-#endif /* __ARM_HAVE_VFP */
-
-	/* Restore core registers */
-	add     r2, r0, #(_JB_CORE_BASE * 4)
-	ldmia   r2, {r4-r14}
-
-	/* Validate sp and r14 */
-	teq	sp, #0
-	teqne	r14, #0
-	beq	botch
-
-	/* Set return value */
-	mov	r0, r1
-	teq	r0, #0x00000000
-	moveq	r0, #0x00000001
-	bx      lr
-
-	/* validation failed, die die die. */
-botch:
-	bl	PIC_SYM(longjmperror, PLT)
-	bl	PIC_SYM(abort, PLT)
-	b	. - 8		/* Cannot get here */
-END(_longjmp)

libc/arch-arm/bionic/abort_arm.S

@@ -40,5 +40,5 @@ ENTRY(abort)
     .cfi_def_cfa_offset 8
     .cfi_rel_offset r3, 0
     .cfi_rel_offset r14, 4
-    bl      PIC_SYM(__libc_android_abort, PLT)
+    bl      __libc_android_abort
 END(abort)

libc/arch-arm/bionic/setjmp.S

@@ -1,6 +1,3 @@
-/*	$OpenBSD: setjmp.S,v 1.2 2004/02/01 05:40:52 drahn Exp $	*/
-/*	$NetBSD: setjmp.S,v 1.5 2003/04/05 23:08:51 bjh21 Exp $	*/
-
 /*
  * Copyright (c) 1997 Mark Brinicombe
  * Copyright (c) 2010 Android Open Source Project.
@@ -35,119 +32,144 @@
  */
 
 #include <private/bionic_asm.h>
-#include <machine/setjmp.h>
-#include <machine/cpu-features.h>
 
-/*
- * C library -- setjmp, longjmp
- *
- *	longjmp(a,v)
- * will generate a "return(v)" from the last call to
- *	setjmp(a)
- * by restoring registers from the stack.
- * The previous signal state is restored.
- */
+// According to the ARM AAPCS document, we only need to save
+// the following registers:
+//
+//  Core   r4-r14
+//
+//  VFP    d8-d15  (see section 5.1.2.1)
+//
+//      Registers s16-s31 (d8-d15, q4-q7) must be preserved across subroutine
+//      calls; registers s0-s15 (d0-d7, q0-q3) do not need to be preserved
+//      (and can be used for passing arguments or returning results in standard
+//      procedure-call variants). Registers d16-d31 (q8-q15), if present, do
+//      not need to be preserved.
+//
+//  FPSCR  saved because glibc does.
+
+// The internal structure of a jmp_buf is totally private.
+// Current layout (may change in the future):
+//
+// word   name         description
+// 0      magic        magic number
+// 1      sigmask      signal mask (not used with _setjmp / _longjmp)
+// 2      float_base   base of float registers (d8 to d15)
+// 18     float_state  floating-point status and control register
+// 19     core_base    base of core registers (r4 to r14)
+// 30     reserved     reserved entries (room to grow)
+// 64
+//
+// NOTE: float_base must be at an even word index, since the
+//       FP registers will be loaded/stored with instructions
+//       that expect 8-byte alignment.
+
+#define _JB_SIGFLAG     0
+#define _JB_SIGMASK     (_JB_SIGFLAG+1)
+#define _JB_FLOAT_BASE  (_JB_SIGMASK+1)
+#define _JB_FLOAT_STATE (_JB_FLOAT_BASE + (15-8+1)*2)
+#define _JB_CORE_BASE   (_JB_FLOAT_STATE+1)
 
 ENTRY(setjmp)
-	/* Block all signals and retrieve the old signal mask */
+  mov r1, #1
+  b sigsetjmp
+END(setjmp)
+
+ENTRY(_setjmp)
+  mov r1, #0
+  b sigsetjmp
+END(_setjmp)
+
+// int sigsetjmp(sigjmp_buf env, int save_signal_mask);
+ENTRY(sigsetjmp)
+  // Record whether or not we're saving the signal mask.
+  str r1, [r0, #(_JB_SIGFLAG * 4)]
+
+  // Do we need to save the signal mask?
+  teq r1, #0
+  beq 1f
+
+  // Get current 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)
+  mov r0, #0
+  bl sigblock
   mov r1, r0
-
   ldmfd sp!, {r0, r14}
   .cfi_def_cfa_offset 0
 
-	/* Store signal mask */
+  // Save the signal mask.
   str r1, [r0, #(_JB_SIGMASK * 4)]
 
-	ldr	r1, .Lsetjmp_magic
-	str	r1, [r0, #(_JB_MAGIC * 4)]
-
-	/* Store core registers */
+1:
+  // Save core registers.
   add r1, r0, #(_JB_CORE_BASE * 4)
   stmia r1, {r4-r14}
 
-#ifdef __ARM_HAVE_VFP
-	/* Store floating-point registers */
+  // Save floating-point registers.
   add r1, r0, #(_JB_FLOAT_BASE * 4)
   vstmia  r1, {d8-d15}
-	/* Store floating-point state */
+
+  // Save floating-point state.
   fmrx r1, fpscr
   str r1, [r0, #(_JB_FLOAT_STATE * 4)]
-#endif  /* __ARM_HAVE_VFP */
 
-	mov	r0, #0x00000000
+  mov r0, #0
   bx lr
-END(setjmp)
+END(sigsetjmp)
 
-.Lsetjmp_magic:
-	.word	_JB_MAGIC_SETJMP
+// void siglongjmp(sigjmp_buf env, int value);
+ENTRY(siglongjmp)
+  // Do we need to restore the signal mask?
+  ldr r2, [r0, #(_JB_SIGFLAG * 4)]
+  teq r2, #0
+  beq 1f
 
-
-ENTRY(longjmp)
-	ldr	r2, .Lsetjmp_magic
-	ldr	r3, [r0, #(_JB_MAGIC * 4)]
-	teq	r2, r3
-	bne	botch
-
-	/* Fetch signal mask */
-	ldr	r2, [r0, #(_JB_SIGMASK * 4)]
-
-	/* Set signal mask */
+  // Restore the 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 */
+  sub sp, sp, #4 // Align the stack.
   .cfi_adjust_cfa_offset 4
 
-	mov	r0, r2
-	bl	PIC_SYM(sigsetmask, PLT)
+  ldr r0, [r0, #(_JB_SIGMASK * 4)]
+  bl sigsetmask
 
-	add	sp, sp, #4	/* unalign the stack */
+  add sp, sp, #4 // Unalign the stack.
   .cfi_adjust_cfa_offset -4
   ldmfd sp!, {r0, r1, r14}
   .cfi_def_cfa_offset 0
 
-#ifdef __ARM_HAVE_VFP
-	/* Restore floating-point registers */
+1:
+  // Restore floating-point registers.
   add r2, r0, #(_JB_FLOAT_BASE * 4)
   vldmia r2, {d8-d15}
-	/* Restore floating-point state */
+
+  // Restore floating-point state.
   ldr r2, [r0, #(_JB_FLOAT_STATE * 4)]
   fmxr fpscr, r2
-#endif /* __ARM_HAVE_VFP */
 
-	/* Restore core registers */
+  // Restore core registers.
   add r2, r0, #(_JB_CORE_BASE * 4)
   ldmia r2, {r4-r14}
 
-	/* Validate sp and r14 */
+  // Validate sp and r14.
   teq sp, #0
   teqne r14, #0
-	beq	botch
-
-	/* Set return value */
+  bleq longjmperror
 
+  // Set return value.
   mov r0, r1
-	teq	r0, #0x00000000
-	moveq	r0, #0x00000001
+  teq r0, #0
+  moveq r0, #1
   bx lr
-#ifdef __ARM_26__
-	mov	r15, r14
-#else
-	mov	r15, r14
-#endif
+END(siglongjmp)
 
-	/* validation failed, die die die. */
-botch:
-	bl	PIC_SYM(longjmperror, PLT)
-	bl	PIC_SYM(abort, PLT)
-	b	. - 8		/* Cannot get here */
-END(longjmp)
+  .globl longjmp
+  .equ longjmp, siglongjmp
+  .globl _longjmp
+  .equ _longjmp, siglongjmp

libc/arch-arm/bionic/sigsetjmp.S

@@ -1,66 +0,0 @@
-/*	$OpenBSD: sigsetjmp.S,v 1.2 2004/02/01 05:40:52 drahn Exp $	*/
-/*	$NetBSD: sigsetjmp.S,v 1.3 2002/08/17 19:54:30 thorpej Exp $	*/
-
-/*
- * Copyright (c) 1997 Mark Brinicombe
- * 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. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by Mark Brinicombe
- * 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 AUTHOR 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 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.
- */
-
-#define _ALIGN_TEXT .align 0
-
-#include <private/bionic_asm.h>
-#include <machine/setjmp.h>
-
-/*
- * C library -- sigsetjmp, siglongjmp
- *
- *	longjmp(a,v)
- * will generate a "return(v)" from the last call to
- *	setjmp(a, m)
- * by restoring registers from the stack.
- * The previous signal state is restored.
- */
-
-ENTRY(sigsetjmp)
-	teq	r1, #0
-	beq	PIC_SYM(_setjmp, PLT)
-	b	PIC_SYM(setjmp, PLT)
-END(sigsetjmp)
-
-.L_setjmp_magic:
-	.word	_JB_MAGIC__SETJMP
-
-ENTRY(siglongjmp)
-	ldr	r2, .L_setjmp_magic
-	ldr	r3, [r0]
-	teq	r2, r3
-	beq	PIC_SYM(_longjmp, PLT)
-	b	PIC_SYM(longjmp, PLT)
-END(siglongjmp)

libc/arch-arm/cortex-a15/bionic/__strcat_chk.S

@@ -40,12 +40,10 @@
 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
@@ -195,9 +193,6 @@ END(__strcat_chk)
 #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

libc/arch-arm/cortex-a15/bionic/__strcpy_chk.S

@@ -39,7 +39,6 @@
 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
@@ -161,7 +160,6 @@ END(__strcpy_chk)
 #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

libc/arch-arm/cortex-a15/bionic/memcpy.S

@@ -72,7 +72,6 @@ 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
@@ -85,7 +84,6 @@ END(memcpy)
 ENTRY_PRIVATE(__memcpy_chk_fail)
         // Preserve lr for backtrace.
         push    {lr}
-        .save   {lr}
         .cfi_def_cfa_offset 4
         .cfi_rel_offset lr, 0
 

libc/arch-arm/cortex-a15/bionic/memcpy_base.S

@@ -54,7 +54,6 @@
  */
 
 ENTRY_PRIVATE(MEMCPY_BASE)
-        .save   {r0, lr}
         .cfi_def_cfa_offset 8
         .cfi_rel_offset r0, 0
         .cfi_rel_offset lr, 4
@@ -172,7 +171,6 @@ ENTRY_PRIVATE(MEMCPY_BASE)
 END(MEMCPY_BASE)
 
 ENTRY_PRIVATE(MEMCPY_BASE_ALIGNED)
-        .save   {r0, lr}
         .cfi_def_cfa_offset 8
         .cfi_rel_offset r0, 0
         .cfi_rel_offset lr, 4
@@ -181,17 +179,14 @@ ENTRY_PRIVATE(MEMCPY_BASE_ALIGNED)
         // i.e., not keeping the stack looking like users expect
         // (highest numbered register at highest address).
         strd    r4, r5, [sp, #-8]!
-        .save   {r4, r5}
         .cfi_adjust_cfa_offset 8
         .cfi_rel_offset r4, 0
         .cfi_rel_offset r5, 4
         strd    r6, r7, [sp, #-8]!
-        .save   {r6, r7}
         .cfi_adjust_cfa_offset 8
         .cfi_rel_offset r6, 0
         .cfi_rel_offset r7, 0
         strd    r8, r9, [sp, #-8]!
-        .save   {r8, r9}
         .cfi_adjust_cfa_offset 8
         .cfi_rel_offset r8, 0
         .cfi_rel_offset r9, 4

libc/arch-arm/cortex-a15/bionic/memset.S

@@ -44,7 +44,6 @@ ENTRY(__memset_chk)
         bls         .L_done
 
         // Preserve lr for backtrace.
-        .save       {lr}
         push        {lr}
         .cfi_def_cfa_offset 4
         .cfi_rel_offset lr, 0
@@ -68,7 +67,6 @@ ENTRY(bzero)
 END(bzero)
 
 ENTRY(memset)
-        .save       {r0}
         stmfd       sp!, {r0}
         .cfi_def_cfa_offset 4
         .cfi_rel_offset r0, 0

libc/arch-arm/cortex-a15/bionic/stpcpy.S

@@ -26,8 +26,5 @@
  * SUCH DAMAGE.
  */
 
-#include <string.h>
-
-int strcoll_l(const char *s1, const char *s2, locale_t) {
-  return strcoll(s1, s2);
-}
+#define STPCPY
+#include "string_copy.S"

libc/arch-arm/cortex-a15/bionic/strcmp.S

@@ -168,7 +168,6 @@ ENTRY(strcmp)
         bne     .L_do_align
 
         /* Fast path.  */
-        .save   {r4-r7}
         init
 
 .L_doubleword_aligned:

libc/arch-arm/cortex-a15/bionic/strcpy.S

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2013 The Android Open Source Project
+ * Copyright (C) 2014 The Android Open Source Project
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -25,427 +25,6 @@
  * 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.
- */
 
-#include <private/bionic_asm.h>
-
-    .syntax unified
-
-    .thumb
-    .thumb_func
-
-    .macro m_push
-    push    {r0, r4, r5, lr}
-    .endm // m_push
-
-    .macro m_pop
-    pop     {r0, r4, r5, pc}
-    .endm // m_pop
-
-    .macro m_copy_byte reg, cmd, label
-    ldrb    \reg, [r1], #1
-    strb    \reg, [r0], #1
-    \cmd    \reg, \label
-    .endm // m_copy_byte
-
-ENTRY(strcpy)
-    // For short copies, hard-code checking the first 8 bytes since this
-    // new code doesn't win until after about 8 bytes.
-    m_push
-    m_copy_byte reg=r2, cmd=cbz, label=strcpy_finish
-    m_copy_byte reg=r3, cmd=cbz, label=strcpy_finish
-    m_copy_byte reg=r4, cmd=cbz, label=strcpy_finish
-    m_copy_byte reg=r5, cmd=cbz, label=strcpy_finish
-    m_copy_byte reg=r2, cmd=cbz, label=strcpy_finish
-    m_copy_byte reg=r3, cmd=cbz, label=strcpy_finish
-    m_copy_byte reg=r4, cmd=cbz, label=strcpy_finish
-    m_copy_byte reg=r5, cmd=cbnz, label=strcpy_continue
-
-strcpy_finish:
-    m_pop
-
-strcpy_continue:
-    pld     [r1, #0]
-    ands    r3, r0, #7
-    beq     strcpy_check_src_align
-
-    // Align to a double word (64 bits).
-    rsb     r3, r3, #8
-    lsls    ip, r3, #31
-    beq     strcpy_align_to_32
-
-    ldrb    r2, [r1], #1
-    strb    r2, [r0], #1
-    cbz     r2, strcpy_complete
-
-strcpy_align_to_32:
-    bcc     strcpy_align_to_64
-
-    ldrb    r2, [r1], #1
-    strb    r2, [r0], #1
-    cbz     r2, strcpy_complete
-    ldrb    r2, [r1], #1
-    strb    r2, [r0], #1
-    cbz     r2, strcpy_complete
-
-strcpy_align_to_64:
-    tst     r3, #4
-    beq     strcpy_check_src_align
-    ldr     r2, [r1], #4
-
-    sub     ip, r2, #0x01010101
-    bic     ip, ip, r2
-    ands    ip, ip, #0x80808080
-    bne     strcpy_zero_in_first_register
-    str     r2, [r0], #4
-
-strcpy_check_src_align:
-    // At this point dst is aligned to a double word, check if src
-    // is also aligned to a double word.
-    ands    r3, r1, #7
-    bne     strcpy_unaligned_copy
-
-    .p2align 2
-strcpy_mainloop:
-    ldrd    r2, r3, [r1], #8
-
-    pld     [r1, #64]
-
-    sub     ip, r2, #0x01010101
-    bic     ip, ip, r2
-    ands    ip, ip, #0x80808080
-    bne     strcpy_zero_in_first_register
-
-    sub     ip, r3, #0x01010101
-    bic     ip, ip, r3
-    ands    ip, ip, #0x80808080
-    bne     strcpy_zero_in_second_register
-
-    strd    r2, r3, [r0], #8
-    b       strcpy_mainloop
-
-strcpy_complete:
-    m_pop
-
-strcpy_zero_in_first_register:
-    lsls    lr, ip, #17
-    bne     strcpy_copy1byte
-    bcs     strcpy_copy2bytes
-    lsls    ip, ip, #1
-    bne     strcpy_copy3bytes
-
-strcpy_copy4bytes:
-    // Copy 4 bytes to the destiniation.
-    str     r2, [r0]
-    m_pop
-
-strcpy_copy1byte:
-    strb    r2, [r0]
-    m_pop
-
-strcpy_copy2bytes:
-    strh    r2, [r0]
-    m_pop
-
-strcpy_copy3bytes:
-    strh    r2, [r0], #2
-    lsr     r2, #16
-    strb    r2, [r0]
-    m_pop
-
-strcpy_zero_in_second_register:
-    lsls    lr, ip, #17
-    bne     strcpy_copy5bytes
-    bcs     strcpy_copy6bytes
-    lsls    ip, ip, #1
-    bne     strcpy_copy7bytes
-
-    // Copy 8 bytes to the destination.
-    strd    r2, r3, [r0]
-    m_pop
-
-strcpy_copy5bytes:
-    str     r2, [r0], #4
-    strb    r3, [r0]
-    m_pop
-
-strcpy_copy6bytes:
-    str     r2, [r0], #4
-    strh    r3, [r0]
-    m_pop
-
-strcpy_copy7bytes:
-    str     r2, [r0], #4
-    strh    r3, [r0], #2
-    lsr     r3, #16
-    strb    r3, [r0]
-    m_pop
-
-strcpy_unaligned_copy:
-    // Dst is aligned to a double word, while src is at an unknown alignment.
-    // There are 7 different versions of the unaligned copy code
-    // to prevent overreading the src. The mainloop of every single version
-    // will store 64 bits per loop. The difference is how much of src can
-    // be read without potentially crossing a page boundary.
-    tbb     [pc, r3]
-strcpy_unaligned_branchtable:
-    .byte 0
-    .byte ((strcpy_unalign7 - strcpy_unaligned_branchtable)/2)
-    .byte ((strcpy_unalign6 - strcpy_unaligned_branchtable)/2)
-    .byte ((strcpy_unalign5 - strcpy_unaligned_branchtable)/2)
-    .byte ((strcpy_unalign4 - strcpy_unaligned_branchtable)/2)
-    .byte ((strcpy_unalign3 - strcpy_unaligned_branchtable)/2)
-    .byte ((strcpy_unalign2 - strcpy_unaligned_branchtable)/2)
-    .byte ((strcpy_unalign1 - strcpy_unaligned_branchtable)/2)
-
-    .p2align 2
-    // Can read 7 bytes before possibly crossing a page.
-strcpy_unalign7:
-    ldr     r2, [r1], #4
-
-    sub     ip, r2, #0x01010101
-    bic     ip, ip, r2
-    ands    ip, ip, #0x80808080
-    bne     strcpy_zero_in_first_register
-
-    ldrb    r3, [r1]
-    cbz     r3, strcpy_unalign7_copy5bytes
-    ldrb    r4, [r1, #1]
-    cbz     r4, strcpy_unalign7_copy6bytes
-    ldrb    r5, [r1, #2]
-    cbz     r5, strcpy_unalign7_copy7bytes
-
-    ldr     r3, [r1], #4
-    pld     [r1, #64]
-
-    lsrs    ip, r3, #24
-    strd    r2, r3, [r0], #8
-    beq     strcpy_unalign_return
-    b       strcpy_unalign7
-
-strcpy_unalign7_copy5bytes:
-    str     r2, [r0], #4
-    strb    r3, [r0]
-strcpy_unalign_return:
-    m_pop
-
-strcpy_unalign7_copy6bytes:
-    str     r2, [r0], #4
-    strb    r3, [r0], #1
-    strb    r4, [r0], #1
-    m_pop
-
-strcpy_unalign7_copy7bytes:
-    str     r2, [r0], #4
-    strb    r3, [r0], #1
-    strb    r4, [r0], #1
-    strb    r5, [r0], #1
-    m_pop
-
-    .p2align 2
-    // Can read 6 bytes before possibly crossing a page.
-strcpy_unalign6:
-    ldr     r2, [r1], #4
-
-    sub     ip, r2, #0x01010101
-    bic     ip, ip, r2
-    ands    ip, ip, #0x80808080
-    bne     strcpy_zero_in_first_register
-
-    ldrb    r4, [r1]
-    cbz     r4, strcpy_unalign_copy5bytes
-    ldrb    r5, [r1, #1]
-    cbz     r5, strcpy_unalign_copy6bytes
-
-    ldr     r3, [r1], #4
-    pld     [r1, #64]
-
-    tst     r3, #0xff0000
-    beq     strcpy_copy7bytes
-    lsrs    ip, r3, #24
-    strd    r2, r3, [r0], #8
-    beq     strcpy_unalign_return
-    b       strcpy_unalign6
-
-    .p2align 2
-    // Can read 5 bytes before possibly crossing a page.
-strcpy_unalign5:
-    ldr     r2, [r1], #4
-
-    sub     ip, r2, #0x01010101
-    bic     ip, ip, r2
-    ands    ip, ip, #0x80808080
-    bne     strcpy_zero_in_first_register
-
-    ldrb    r4, [r1]
-    cbz     r4, strcpy_unalign_copy5bytes
-
-    ldr     r3, [r1], #4
-
-    pld     [r1, #64]
-
-    sub     ip, r3, #0x01010101
-    bic     ip, ip, r3
-    ands    ip, ip, #0x80808080
-    bne     strcpy_zero_in_second_register
-
-    strd    r2, r3, [r0], #8
-    b       strcpy_unalign5
-
-strcpy_unalign_copy5bytes:
-    str     r2, [r0], #4
-    strb    r4, [r0]
-    m_pop
-
-strcpy_unalign_copy6bytes:
-    str     r2, [r0], #4
-    strb    r4, [r0], #1
-    strb    r5, [r0]
-    m_pop
-
-    .p2align 2
-    // Can read 4 bytes before possibly crossing a page.
-strcpy_unalign4:
-    ldr     r2, [r1], #4
-
-    sub     ip, r2, #0x01010101
-    bic     ip, ip, r2
-    ands    ip, ip, #0x80808080
-    bne     strcpy_zero_in_first_register
-
-    ldr     r3, [r1], #4
-    pld     [r1, #64]
-
-    sub     ip, r3, #0x01010101
-    bic     ip, ip, r3
-    ands    ip, ip, #0x80808080
-    bne     strcpy_zero_in_second_register
-
-    strd    r2, r3, [r0], #8
-    b       strcpy_unalign4
-
-    .p2align 2
-    // Can read 3 bytes before possibly crossing a page.
-strcpy_unalign3:
-    ldrb    r2, [r1]
-    cbz     r2, strcpy_unalign3_copy1byte
-    ldrb    r3, [r1, #1]
-    cbz     r3, strcpy_unalign3_copy2bytes
-    ldrb    r4, [r1, #2]
-    cbz     r4, strcpy_unalign3_copy3bytes
-
-    ldr     r2, [r1], #4
-    ldr     r3, [r1], #4
-
-    pld     [r1, #64]
-
-    lsrs    lr, r2, #24
-    beq     strcpy_copy4bytes
-
-    sub     ip, r3, #0x01010101
-    bic     ip, ip, r3
-    ands    ip, ip, #0x80808080
-    bne     strcpy_zero_in_second_register
-
-    strd    r2, r3, [r0], #8
-    b       strcpy_unalign3
-
-strcpy_unalign3_copy1byte:
-    strb    r2, [r0]
-    m_pop
-
-strcpy_unalign3_copy2bytes:
-    strb    r2, [r0], #1
-    strb    r3, [r0]
-    m_pop
-
-strcpy_unalign3_copy3bytes:
-    strb    r2, [r0], #1
-    strb    r3, [r0], #1
-    strb    r4, [r0]
-    m_pop
-
-    .p2align 2
-    // Can read 2 bytes before possibly crossing a page.
-strcpy_unalign2:
-    ldrb    r2, [r1]
-    cbz     r2, strcpy_unalign_copy1byte
-    ldrb    r4, [r1, #1]
-    cbz     r4, strcpy_unalign_copy2bytes
-
-    ldr     r2, [r1], #4
-    ldr     r3, [r1], #4
-    pld     [r1, #64]
-
-    tst     r2, #0xff0000
-    beq     strcpy_copy3bytes
-    lsrs    ip, r2, #24
-    beq     strcpy_copy4bytes
-
-    sub     ip, r3, #0x01010101
-    bic     ip, ip, r3
-    ands    ip, ip, #0x80808080
-    bne     strcpy_zero_in_second_register
-
-    strd    r2, r3, [r0], #8
-    b       strcpy_unalign2
-
-    .p2align 2
-    // Can read 1 byte before possibly crossing a page.
-strcpy_unalign1:
-    ldrb    r2, [r1]
-    cbz     r2, strcpy_unalign_copy1byte
-
-    ldr     r2, [r1], #4
-    ldr     r3, [r1], #4
-
-    pld     [r1, #64]
-
-    sub     ip, r2, #0x01010101
-    bic     ip, ip, r2
-    ands    ip, ip, #0x80808080
-    bne     strcpy_zero_in_first_register
-
-    sub     ip, r3, #0x01010101
-    bic     ip, ip, r3
-    ands    ip, ip, #0x80808080
-    bne     strcpy_zero_in_second_register
-
-    strd    r2, r3, [r0], #8
-    b       strcpy_unalign1
-
-strcpy_unalign_copy1byte:
-    strb    r2, [r0]
-    m_pop
-
-strcpy_unalign_copy2bytes:
-    strb    r2, [r0], #1
-    strb    r4, [r0]
-    m_pop
-END(strcpy)
+#define STRCPY
+#include "string_copy.S"

libc/arch-arm/cortex-a15/bionic/string_copy.S

@@ -0,0 +1,513 @@
+/*
+ * 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.
+ */
+/*
+ * 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.
+ */
+
+#if !defined(STPCPY) && !defined(STRCPY)
+#error "Either STPCPY or STRCPY must be defined."
+#endif
+
+#include <private/bionic_asm.h>
+
+    .syntax unified
+
+    .thumb
+    .thumb_func
+
+#if defined(STPCPY)
+    .macro m_push
+    push    {r4, r5, lr}
+    .cfi_def_cfa_offset 12
+    .cfi_rel_offset r4, 0
+    .cfi_rel_offset r5, 4
+    .cfi_rel_offset lr, 8
+    .endm // m_push
+#else
+    .macro m_push
+    push    {r0, r4, r5, lr}
+    .cfi_def_cfa_offset 16
+    .cfi_rel_offset r0, 0
+    .cfi_rel_offset r4, 4
+    .cfi_rel_offset r5, 8
+    .cfi_rel_offset lr, 12
+    .endm // m_push
+#endif
+
+#if defined(STPCPY)
+    .macro m_pop
+    pop     {r4, r5, pc}
+    .endm // m_pop
+#else
+    .macro m_pop
+    pop     {r0, r4, r5, pc}
+    .endm // m_pop
+#endif
+
+    .macro m_copy_byte reg, cmd, label
+    ldrb    \reg, [r1], #1
+    strb    \reg, [r0], #1
+    \cmd    \reg, \label
+    .endm // m_copy_byte
+
+#if defined(STPCPY)
+ENTRY(stpcpy)
+#else
+ENTRY(strcpy)
+#endif
+    // For short copies, hard-code checking the first 8 bytes since this
+    // new code doesn't win until after about 8 bytes.
+    m_push
+    m_copy_byte reg=r2, cmd=cbz, label=.Lstringcopy_finish
+    m_copy_byte reg=r3, cmd=cbz, label=.Lstringcopy_finish
+    m_copy_byte reg=r4, cmd=cbz, label=.Lstringcopy_finish
+    m_copy_byte reg=r5, cmd=cbz, label=.Lstringcopy_finish
+    m_copy_byte reg=r2, cmd=cbz, label=.Lstringcopy_finish
+    m_copy_byte reg=r3, cmd=cbz, label=.Lstringcopy_finish
+    m_copy_byte reg=r4, cmd=cbz, label=.Lstringcopy_finish
+    m_copy_byte reg=r5, cmd=cbnz, label=.Lstringcopy_continue
+
+.Lstringcopy_finish:
+#if defined(STPCPY)
+    sub     r0, r0, #1
+#endif
+    m_pop
+
+.Lstringcopy_continue:
+    pld     [r1, #0]
+    ands    r3, r0, #7
+    beq     .Lstringcopy_check_src_align
+
+    // Align to a double word (64 bits).
+    rsb     r3, r3, #8
+    lsls    ip, r3, #31
+    beq     .Lstringcopy_align_to_32
+
+    ldrb    r2, [r1], #1
+    strb    r2, [r0], #1
+    cbz     r2, .Lstringcopy_complete
+
+.Lstringcopy_align_to_32:
+    bcc     .Lstringcopy_align_to_64
+
+    ldrb    r2, [r1], #1
+    strb    r2, [r0], #1
+    cbz     r2, .Lstringcopy_complete
+    ldrb    r2, [r1], #1
+    strb    r2, [r0], #1
+    cbz     r2, .Lstringcopy_complete
+
+.Lstringcopy_align_to_64:
+    tst     r3, #4
+    beq     .Lstringcopy_check_src_align
+    ldr     r2, [r1], #4
+
+    sub     ip, r2, #0x01010101
+    bic     ip, ip, r2
+    ands    ip, ip, #0x80808080
+    bne     .Lstringcopy_zero_in_first_register
+    str     r2, [r0], #4
+
+.Lstringcopy_check_src_align:
+    // At this point dst is aligned to a double word, check if src
+    // is also aligned to a double word.
+    ands    r3, r1, #7
+    bne     .Lstringcopy_unaligned_copy
+
+    .p2align 2
+.Lstringcopy_mainloop:
+    ldrd    r2, r3, [r1], #8
+
+    pld     [r1, #64]
+
+    sub     ip, r2, #0x01010101
+    bic     ip, ip, r2
+    ands    ip, ip, #0x80808080
+    bne     .Lstringcopy_zero_in_first_register
+
+    sub     ip, r3, #0x01010101
+    bic     ip, ip, r3
+    ands    ip, ip, #0x80808080
+    bne     .Lstringcopy_zero_in_second_register
+
+    strd    r2, r3, [r0], #8
+    b       .Lstringcopy_mainloop
+
+.Lstringcopy_complete:
+#if defined(STPCPY)
+    sub     r0, r0, #1
+#endif
+    m_pop
+
+.Lstringcopy_zero_in_first_register:
+    lsls    lr, ip, #17
+    bne     .Lstringcopy_copy1byte
+    bcs     .Lstringcopy_copy2bytes
+    lsls    ip, ip, #1
+    bne     .Lstringcopy_copy3bytes
+
+.Lstringcopy_copy4bytes:
+    // Copy 4 bytes to the destiniation.
+#if defined(STPCPY)
+    str     r2, [r0], #3
+#else
+    str     r2, [r0]
+#endif
+    m_pop
+
+.Lstringcopy_copy1byte:
+    strb    r2, [r0]
+    m_pop
+
+.Lstringcopy_copy2bytes:
+#if defined(STPCPY)
+    strh    r2, [r0], #1
+#else
+    strh    r2, [r0]
+#endif
+    m_pop
+
+.Lstringcopy_copy3bytes:
+    strh    r2, [r0], #2
+    lsr     r2, #16
+    strb    r2, [r0]
+    m_pop
+
+.Lstringcopy_zero_in_second_register:
+    lsls    lr, ip, #17
+    bne     .Lstringcopy_copy5bytes
+    bcs     .Lstringcopy_copy6bytes
+    lsls    ip, ip, #1
+    bne     .Lstringcopy_copy7bytes
+
+    // Copy 8 bytes to the destination.
+    strd    r2, r3, [r0]
+#if defined(STPCPY)
+    add     r0, r0, #7
+#endif
+    m_pop
+
+.Lstringcopy_copy5bytes:
+    str     r2, [r0], #4
+    strb    r3, [r0]
+    m_pop
+
+.Lstringcopy_copy6bytes:
+    str     r2, [r0], #4
+#if defined(STPCPY)
+    strh    r3, [r0], #1
+#else
+    strh    r3, [r0]
+#endif
+    m_pop
+
+.Lstringcopy_copy7bytes:
+    str     r2, [r0], #4
+    strh    r3, [r0], #2
+    lsr     r3, #16
+    strb    r3, [r0]
+    m_pop
+
+.Lstringcopy_unaligned_copy:
+    // Dst is aligned to a double word, while src is at an unknown alignment.
+    // There are 7 different versions of the unaligned copy code
+    // to prevent overreading the src. The mainloop of every single version
+    // will store 64 bits per loop. The difference is how much of src can
+    // be read without potentially crossing a page boundary.
+    tbb     [pc, r3]
+.Lstringcopy_unaligned_branchtable:
+    .byte 0
+    .byte ((.Lstringcopy_unalign7 - .Lstringcopy_unaligned_branchtable)/2)
+    .byte ((.Lstringcopy_unalign6 - .Lstringcopy_unaligned_branchtable)/2)
+    .byte ((.Lstringcopy_unalign5 - .Lstringcopy_unaligned_branchtable)/2)
+    .byte ((.Lstringcopy_unalign4 - .Lstringcopy_unaligned_branchtable)/2)
+    .byte ((.Lstringcopy_unalign3 - .Lstringcopy_unaligned_branchtable)/2)
+    .byte ((.Lstringcopy_unalign2 - .Lstringcopy_unaligned_branchtable)/2)
+    .byte ((.Lstringcopy_unalign1 - .Lstringcopy_unaligned_branchtable)/2)
+
+    .p2align 2
+    // Can read 7 bytes before possibly crossing a page.
+.Lstringcopy_unalign7:
+    ldr     r2, [r1], #4
+
+    sub     ip, r2, #0x01010101
+    bic     ip, ip, r2
+    ands    ip, ip, #0x80808080
+    bne     .Lstringcopy_zero_in_first_register
+
+    ldrb    r3, [r1]
+    cbz     r3, .Lstringcopy_unalign7_copy5bytes
+    ldrb    r4, [r1, #1]
+    cbz     r4, .Lstringcopy_unalign7_copy6bytes
+    ldrb    r5, [r1, #2]
+    cbz     r5, .Lstringcopy_unalign7_copy7bytes
+
+    ldr     r3, [r1], #4
+    pld     [r1, #64]
+
+    lsrs    ip, r3, #24
+    strd    r2, r3, [r0], #8
+#if defined(STPCPY)
+    beq     .Lstringcopy_finish
+#else
+    beq     .Lstringcopy_unalign_return
+#endif
+    b       .Lstringcopy_unalign7
+
+.Lstringcopy_unalign7_copy5bytes:
+    str     r2, [r0], #4
+    strb    r3, [r0]
+.Lstringcopy_unalign_return:
+    m_pop
+
+.Lstringcopy_unalign7_copy6bytes:
+    str     r2, [r0], #4
+    strb    r3, [r0], #1
+    strb    r4, [r0]
+    m_pop
+
+.Lstringcopy_unalign7_copy7bytes:
+    str     r2, [r0], #4
+    strb    r3, [r0], #1
+    strb    r4, [r0], #1
+    strb    r5, [r0]
+    m_pop
+
+    .p2align 2
+    // Can read 6 bytes before possibly crossing a page.
+.Lstringcopy_unalign6:
+    ldr     r2, [r1], #4
+
+    sub     ip, r2, #0x01010101
+    bic     ip, ip, r2
+    ands    ip, ip, #0x80808080
+    bne     .Lstringcopy_zero_in_first_register
+
+    ldrb    r4, [r1]
+    cbz     r4, .Lstringcopy_unalign_copy5bytes
+    ldrb    r5, [r1, #1]
+    cbz     r5, .Lstringcopy_unalign_copy6bytes
+
+    ldr     r3, [r1], #4
+    pld     [r1, #64]
+
+    tst     r3, #0xff0000
+    beq     .Lstringcopy_copy7bytes
+    lsrs    ip, r3, #24
+    strd    r2, r3, [r0], #8
+#if defined(STPCPY)
+    beq     .Lstringcopy_finish
+#else
+    beq     .Lstringcopy_unalign_return
+#endif
+    b       .Lstringcopy_unalign6
+
+    .p2align 2
+    // Can read 5 bytes before possibly crossing a page.
+.Lstringcopy_unalign5:
+    ldr     r2, [r1], #4
+
+    sub     ip, r2, #0x01010101
+    bic     ip, ip, r2
+    ands    ip, ip, #0x80808080
+    bne     .Lstringcopy_zero_in_first_register
+
+    ldrb    r4, [r1]
+    cbz     r4, .Lstringcopy_unalign_copy5bytes
+
+    ldr     r3, [r1], #4
+
+    pld     [r1, #64]
+
+    sub     ip, r3, #0x01010101
+    bic     ip, ip, r3
+    ands    ip, ip, #0x80808080
+    bne     .Lstringcopy_zero_in_second_register
+
+    strd    r2, r3, [r0], #8
+    b       .Lstringcopy_unalign5
+
+.Lstringcopy_unalign_copy5bytes:
+    str     r2, [r0], #4
+    strb    r4, [r0]
+    m_pop
+
+.Lstringcopy_unalign_copy6bytes:
+    str     r2, [r0], #4
+    strb    r4, [r0], #1
+    strb    r5, [r0]
+    m_pop
+
+    .p2align 2
+    // Can read 4 bytes before possibly crossing a page.
+.Lstringcopy_unalign4:
+    ldr     r2, [r1], #4
+
+    sub     ip, r2, #0x01010101
+    bic     ip, ip, r2
+    ands    ip, ip, #0x80808080
+    bne     .Lstringcopy_zero_in_first_register
+
+    ldr     r3, [r1], #4
+    pld     [r1, #64]
+
+    sub     ip, r3, #0x01010101
+    bic     ip, ip, r3
+    ands    ip, ip, #0x80808080
+    bne     .Lstringcopy_zero_in_second_register
+
+    strd    r2, r3, [r0], #8
+    b       .Lstringcopy_unalign4
+
+    .p2align 2
+    // Can read 3 bytes before possibly crossing a page.
+.Lstringcopy_unalign3:
+    ldrb    r2, [r1]
+    cbz     r2, .Lstringcopy_unalign3_copy1byte
+    ldrb    r3, [r1, #1]
+    cbz     r3, .Lstringcopy_unalign3_copy2bytes
+    ldrb    r4, [r1, #2]
+    cbz     r4, .Lstringcopy_unalign3_copy3bytes
+
+    ldr     r2, [r1], #4
+    ldr     r3, [r1], #4
+
+    pld     [r1, #64]
+
+    lsrs    lr, r2, #24
+    beq     .Lstringcopy_copy4bytes
+
+    sub     ip, r3, #0x01010101
+    bic     ip, ip, r3
+    ands    ip, ip, #0x80808080
+    bne     .Lstringcopy_zero_in_second_register
+
+    strd    r2, r3, [r0], #8
+    b       .Lstringcopy_unalign3
+
+.Lstringcopy_unalign3_copy1byte:
+    strb    r2, [r0]
+    m_pop
+
+.Lstringcopy_unalign3_copy2bytes:
+    strb    r2, [r0], #1
+    strb    r3, [r0]
+    m_pop
+
+.Lstringcopy_unalign3_copy3bytes:
+    strb    r2, [r0], #1
+    strb    r3, [r0], #1
+    strb    r4, [r0]
+    m_pop
+
+    .p2align 2
+    // Can read 2 bytes before possibly crossing a page.
+.Lstringcopy_unalign2:
+    ldrb    r2, [r1]
+    cbz     r2, .Lstringcopy_unalign_copy1byte
+    ldrb    r4, [r1, #1]
+    cbz     r4, .Lstringcopy_unalign_copy2bytes
+
+    ldr     r2, [r1], #4
+    ldr     r3, [r1], #4
+    pld     [r1, #64]
+
+    tst     r2, #0xff0000
+    beq     .Lstringcopy_copy3bytes
+    lsrs    ip, r2, #24
+    beq     .Lstringcopy_copy4bytes
+
+    sub     ip, r3, #0x01010101
+    bic     ip, ip, r3
+    ands    ip, ip, #0x80808080
+    bne     .Lstringcopy_zero_in_second_register
+
+    strd    r2, r3, [r0], #8
+    b       .Lstringcopy_unalign2
+
+    .p2align 2
+    // Can read 1 byte before possibly crossing a page.
+.Lstringcopy_unalign1:
+    ldrb    r2, [r1]
+    cbz     r2, .Lstringcopy_unalign_copy1byte
+
+    ldr     r2, [r1], #4
+    ldr     r3, [r1], #4
+
+    pld     [r1, #64]
+
+    sub     ip, r2, #0x01010101
+    bic     ip, ip, r2
+    ands    ip, ip, #0x80808080
+    bne     .Lstringcopy_zero_in_first_register
+
+    sub     ip, r3, #0x01010101
+    bic     ip, ip, r3
+    ands    ip, ip, #0x80808080
+    bne     .Lstringcopy_zero_in_second_register
+
+    strd    r2, r3, [r0], #8
+    b       .Lstringcopy_unalign1
+
+.Lstringcopy_unalign_copy1byte:
+    strb    r2, [r0]
+    m_pop
+
+.Lstringcopy_unalign_copy2bytes:
+    strb    r2, [r0], #1
+    strb    r4, [r0]
+    m_pop
+#if defined(STPCPY)
+END(stpcpy)
+#else
+END(strcpy)
+#endif

libc/arch-arm/cortex-a15/cortex-a15.mk

@@ -1,10 +1,11 @@
 libc_bionic_src_files_arm += \
     arch-arm/cortex-a15/bionic/memcpy.S \
     arch-arm/cortex-a15/bionic/memset.S \
+    arch-arm/cortex-a15/bionic/stpcpy.S \
     arch-arm/cortex-a15/bionic/strcat.S \
+    arch-arm/cortex-a15/bionic/__strcat_chk.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 \
+    arch-arm/cortex-a15/bionic/strlen.S \
     bionic/memmove.c \

libc/arch-arm/cortex-a9/bionic/__strcat_chk.S

@@ -40,12 +40,10 @@
 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
@@ -199,8 +197,6 @@ END(__strcat_chk)
 #include "memcpy_base.S"
 
 ENTRY_PRIVATE(__strcat_chk_fail)
-    .save   {r0, lr}
-    .save   {r4, r5}
     .cfi_def_cfa_offset 8
     .cfi_rel_offset r0, 0
     .cfi_rel_offset lr, 4

libc/arch-arm/cortex-a9/bionic/__strcpy_chk.S

@@ -39,7 +39,6 @@
 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
@@ -165,7 +164,6 @@ END(__strcpy_chk)
 #include "memcpy_base.S"
 
 ENTRY_PRIVATE(__strcpy_chk_fail)
-    .save   {r0, lr}
     .cfi_def_cfa_offset 8
     .cfi_rel_offset r0, 0
     .cfi_rel_offset lr, 4

libc/arch-arm/cortex-a9/bionic/memcpy.S

@@ -50,7 +50,6 @@ END(__memcpy_chk)
 ENTRY(memcpy)
         pld     [r1, #0]
         stmfd   sp!, {r0, lr}
-        .save   {r0, lr}
         .cfi_def_cfa_offset 8
         .cfi_rel_offset r0, 0
         .cfi_rel_offset lr, 4
@@ -64,7 +63,6 @@ END(memcpy)
 ENTRY_PRIVATE(__memcpy_chk_fail)
         // Preserve lr for backtrace.
         push    {lr}
-        .save   {lr}
         .cfi_def_cfa_offset 4
         .cfi_rel_offset lr, 0
 

libc/arch-arm/cortex-a9/bionic/memcpy_base.S

@@ -33,7 +33,6 @@
  */
 
 ENTRY_PRIVATE(MEMCPY_BASE)
-        .save       {r0, lr}
         .cfi_def_cfa_offset 8
         .cfi_rel_offset r0, 0
         .cfi_rel_offset lr, 4
@@ -139,14 +138,12 @@ ENTRY_PRIVATE(MEMCPY_BASE)
 END(MEMCPY_BASE)
 
 ENTRY_PRIVATE(MEMCPY_BASE_ALIGNED)
-        .save       {r0, lr}
         .cfi_def_cfa_offset 8
         .cfi_rel_offset r0, 0
         .cfi_rel_offset lr, 4
 
         /* Simple arm-only copy loop to handle aligned copy operations */
         stmfd       sp!, {r4-r8}
-        .save       {r4-r8}
         .cfi_adjust_cfa_offset 20
         .cfi_rel_offset r4, 0
         .cfi_rel_offset r5, 4

libc/arch-arm/cortex-a9/bionic/memset.S

@@ -42,7 +42,6 @@ ENTRY(__memset_chk)
 
         // Preserve lr for backtrace.
         push        {lr}
-        .save       {lr}
         .cfi_def_cfa_offset 4
         .cfi_rel_offset lr, 0
 
@@ -72,7 +71,6 @@ ENTRY(memset)
         bhi         __memset_large_copy
 
         stmfd       sp!, {r0}
-        .save       {r0}
         .cfi_def_cfa_offset 4
         .cfi_rel_offset r0, 0
 
@@ -114,7 +112,6 @@ ENTRY_PRIVATE(__memset_large_copy)
          * offset = (4-(src&3))&3 = -src & 3
          */
         stmfd       sp!, {r0, r4-r7, lr}
-        .save       {r0, r4-r7, lr}
         .cfi_def_cfa_offset 24
         .cfi_rel_offset r0, 0
         .cfi_rel_offset r4, 4

libc/arch-arm/cortex-a9/bionic/stpcpy.S

@@ -26,8 +26,5 @@
  * SUCH DAMAGE.
  */
 
-#include <string.h>
-
-size_t strxfrm_l(char *dest, const char *src, size_t n, locale_t) {
-  return strxfrm(dest, src, n);
-}
+#define STPCPY
+#include "string_copy.S"

libc/arch-arm/cortex-a9/bionic/strcmp.S

@@ -168,7 +168,6 @@ ENTRY(strcmp)
         bne     .L_do_align
 
         /* Fast path.  */
-        .save   {r4-r7}
         init
 
 .L_doubleword_aligned:

libc/arch-arm/cortex-a9/bionic/strcpy.S

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2013 The Android Open Source Project
+ * Copyright (C) 2014 The Android Open Source Project
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -25,432 +25,6 @@
  * 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.
- */
 
-#include <private/bionic_asm.h>
-
-    .syntax unified
-
-    .thumb
-    .thumb_func
-
-    .macro m_push
-    push    {r0, r4, r5, lr}
-    .endm // m_push
-
-    .macro m_ret inst
-    \inst   {r0, r4, r5, pc}
-    .endm // m_ret
-
-    .macro m_copy_byte reg, cmd, label
-    ldrb    \reg, [r1], #1
-    strb    \reg, [r0], #1
-    \cmd    \reg, \label
-    .endm // m_copy_byte
-
-ENTRY(strcpy)
-    // Unroll the first 8 bytes that will be copied.
-    m_push
-    m_copy_byte reg=r2, cmd=cbz, label=strcpy_finish
-    m_copy_byte reg=r3, cmd=cbz, label=strcpy_finish
-    m_copy_byte reg=r4, cmd=cbz, label=strcpy_finish
-    m_copy_byte reg=r5, cmd=cbz, label=strcpy_finish
-    m_copy_byte reg=r2, cmd=cbz, label=strcpy_finish
-    m_copy_byte reg=r3, cmd=cbz, label=strcpy_finish
-    m_copy_byte reg=r4, cmd=cbz, label=strcpy_finish
-    m_copy_byte reg=r5, cmd=cbnz, label=strcpy_continue
-
-strcpy_finish:
-    m_ret   inst=pop
-
-strcpy_continue:
-    pld     [r1, #0]
-    ands    r3, r0, #7
-    bne     strcpy_align_dst
-
-strcpy_check_src_align:
-    // At this point dst is aligned to a double word, check if src
-    // is also aligned to a double word.
-    ands    r3, r1, #7
-    bne     strcpy_unaligned_copy
-
-    .p2align 2
-strcpy_mainloop:
-    ldmia   r1!, {r2, r3}
-
-    pld     [r1, #64]
-
-    sub     ip, r2, #0x01010101
-    bic     ip, ip, r2
-    ands    ip, ip, #0x80808080
-    bne     strcpy_zero_in_first_register
-
-    sub     ip, r3, #0x01010101
-    bic     ip, ip, r3
-    ands    ip, ip, #0x80808080
-    bne     strcpy_zero_in_second_register
-
-    stmia   r0!, {r2, r3}
-    b       strcpy_mainloop
-
-strcpy_zero_in_first_register:
-    lsls    lr, ip, #17
-    itt     ne
-    strbne  r2, [r0]
-    m_ret   inst=popne
-    itt     cs
-    strhcs  r2, [r0]
-    m_ret   inst=popcs
-    lsls    ip, ip, #1
-    itt     eq
-    streq   r2, [r0]
-    m_ret   inst=popeq
-    strh    r2, [r0], #2
-    lsr     r3, r2, #16
-    strb    r3, [r0]
-    m_ret   inst=pop
-
-strcpy_zero_in_second_register:
-    lsls    lr, ip, #17
-    ittt    ne
-    stmiane r0!, {r2}
-    strbne  r3, [r0]
-    m_ret   inst=popne
-    ittt    cs
-    strcs   r2, [r0], #4
-    strhcs  r3, [r0]
-    m_ret   inst=popcs
-    lsls    ip, ip, #1
-    itt     eq
-    stmiaeq r0, {r2, r3}
-    m_ret   inst=popeq
-    stmia   r0!, {r2}
-    strh    r3, [r0], #2
-    lsr     r4, r3, #16
-    strb    r4, [r0]
-    m_ret   inst=pop
-
-strcpy_align_dst:
-    // Align to a double word (64 bits).
-    rsb     r3, r3, #8
-    lsls    ip, r3, #31
-    beq     strcpy_align_to_32
-
-    ldrb    r2, [r1], #1
-    strb    r2, [r0], #1
-    cbz     r2, strcpy_complete
-
-strcpy_align_to_32:
-    bcc     strcpy_align_to_64
-
-    ldrb    r4, [r1], #1
-    strb    r4, [r0], #1
-    cmp     r4, #0
-    it      eq
-    m_ret   inst=popeq
-    ldrb    r5, [r1], #1
-    strb    r5, [r0], #1
-    cmp     r5, #0
-    it      eq
-    m_ret   inst=popeq
-
-strcpy_align_to_64:
-    tst     r3, #4
-    beq     strcpy_check_src_align
-    ldr     r2, [r1], #4
-
-    sub     ip, r2, #0x01010101
-    bic     ip, ip, r2
-    ands    ip, ip, #0x80808080
-    bne     strcpy_zero_in_first_register
-    stmia   r0!, {r2}
-    b       strcpy_check_src_align
-
-strcpy_complete:
-    m_ret   inst=pop
-
-strcpy_unaligned_copy:
-    // Dst is aligned to a double word, while src is at an unknown alignment.
-    // There are 7 different versions of the unaligned copy code
-    // to prevent overreading the src. The mainloop of every single version
-    // will store 64 bits per loop. The difference is how much of src can
-    // be read without potentially crossing a page boundary.
-    tbb     [pc, r3]
-strcpy_unaligned_branchtable:
-    .byte 0
-    .byte ((strcpy_unalign7 - strcpy_unaligned_branchtable)/2)
-    .byte ((strcpy_unalign6 - strcpy_unaligned_branchtable)/2)
-    .byte ((strcpy_unalign5 - strcpy_unaligned_branchtable)/2)
-    .byte ((strcpy_unalign4 - strcpy_unaligned_branchtable)/2)
-    .byte ((strcpy_unalign3 - strcpy_unaligned_branchtable)/2)
-    .byte ((strcpy_unalign2 - strcpy_unaligned_branchtable)/2)
-    .byte ((strcpy_unalign1 - strcpy_unaligned_branchtable)/2)
-
-    .p2align 2
-    // Can read 7 bytes before possibly crossing a page.
-strcpy_unalign7:
-    ldr     r2, [r1], #4
-
-    sub     ip, r2, #0x01010101
-    bic     ip, ip, r2
-    ands    ip, ip, #0x80808080
-    bne     strcpy_zero_in_first_register
-
-    ldrb    r3, [r1]
-    cbz     r3, strcpy_unalign7_copy5bytes
-    ldrb    r4, [r1, #1]
-    cbz     r4, strcpy_unalign7_copy6bytes
-    ldrb    r5, [r1, #2]
-    cbz     r5, strcpy_unalign7_copy7bytes
-
-    ldr     r3, [r1], #4
-    pld     [r1, #64]
-
-    lsrs    ip, r3, #24
-    stmia   r0!, {r2, r3}
-    beq     strcpy_unalign_return
-    b       strcpy_unalign7
-
-strcpy_unalign7_copy5bytes:
-    stmia   r0!, {r2}
-    strb    r3, [r0]
-strcpy_unalign_return:
-    m_ret   inst=pop
-
-strcpy_unalign7_copy6bytes:
-    stmia   r0!, {r2}
-    strb    r3, [r0], #1
-    strb    r4, [r0], #1
-    m_ret   inst=pop
-
-strcpy_unalign7_copy7bytes:
-    stmia   r0!, {r2}
-    strb    r3, [r0], #1
-    strb    r4, [r0], #1
-    strb    r5, [r0], #1
-    m_ret   inst=pop
-
-    .p2align 2
-    // Can read 6 bytes before possibly crossing a page.
-strcpy_unalign6:
-    ldr     r2, [r1], #4
-
-    sub     ip, r2, #0x01010101
-    bic     ip, ip, r2
-    ands    ip, ip, #0x80808080
-    bne     strcpy_zero_in_first_register
-
-    ldrb    r4, [r1]
-    cbz     r4, strcpy_unalign_copy5bytes
-    ldrb    r5, [r1, #1]
-    cbz     r5, strcpy_unalign_copy6bytes
-
-    ldr     r3, [r1], #4
-    pld     [r1, #64]
-
-    tst     r3, #0xff0000
-    beq     strcpy_unalign6_copy7bytes
-    lsrs    ip, r3, #24
-    stmia   r0!, {r2, r3}
-    beq     strcpy_unalign_return
-    b       strcpy_unalign6
-
-strcpy_unalign6_copy7bytes:
-    stmia   r0!, {r2}
-    strh    r3, [r0], #2
-    lsr     r3, #16
-    strb    r3, [r0]
-    m_ret   inst=pop
-
-    .p2align 2
-    // Can read 5 bytes before possibly crossing a page.
-strcpy_unalign5:
-    ldr     r2, [r1], #4
-
-    sub     ip, r2, #0x01010101
-    bic     ip, ip, r2
-    ands    ip, ip, #0x80808080
-    bne     strcpy_zero_in_first_register
-
-    ldrb    r4, [r1]
-    cbz     r4, strcpy_unalign_copy5bytes
-
-    ldr     r3, [r1], #4
-
-    pld     [r1, #64]
-
-    sub     ip, r3, #0x01010101
-    bic     ip, ip, r3
-    ands    ip, ip, #0x80808080
-    bne     strcpy_zero_in_second_register
-
-    stmia   r0!, {r2, r3}
-    b       strcpy_unalign5
-
-strcpy_unalign_copy5bytes:
-    stmia   r0!, {r2}
-    strb    r4, [r0]
-    m_ret   inst=pop
-
-strcpy_unalign_copy6bytes:
-    stmia   r0!, {r2}
-    strb    r4, [r0], #1
-    strb    r5, [r0]
-    m_ret   inst=pop
-
-    .p2align 2
-    // Can read 4 bytes before possibly crossing a page.
-strcpy_unalign4:
-    ldmia   r1!, {r2}
-
-    sub     ip, r2, #0x01010101
-    bic     ip, ip, r2
-    ands    ip, ip, #0x80808080
-    bne     strcpy_zero_in_first_register
-
-    ldmia   r1!, {r3}
-    pld     [r1, #64]
-
-    sub     ip, r3, #0x01010101
-    bic     ip, ip, r3
-    ands    ip, ip, #0x80808080
-    bne     strcpy_zero_in_second_register
-
-    stmia   r0!, {r2, r3}
-    b       strcpy_unalign4
-
-    .p2align 2
-    // Can read 3 bytes before possibly crossing a page.
-strcpy_unalign3:
-    ldrb    r2, [r1]
-    cbz     r2, strcpy_unalign3_copy1byte
-    ldrb    r3, [r1, #1]
-    cbz     r3, strcpy_unalign3_copy2bytes
-    ldrb    r4, [r1, #2]
-    cbz     r4, strcpy_unalign3_copy3bytes
-
-    ldr     r2, [r1], #4
-    ldr     r3, [r1], #4
-
-    pld     [r1, #64]
-
-    lsrs    lr, r2, #24
-    beq     strcpy_unalign_copy4bytes
-
-    sub     ip, r3, #0x01010101
-    bic     ip, ip, r3
-    ands    ip, ip, #0x80808080
-    bne     strcpy_zero_in_second_register
-
-    stmia   r0!, {r2, r3}
-    b       strcpy_unalign3
-
-strcpy_unalign3_copy1byte:
-    strb    r2, [r0]
-    m_ret   inst=pop
-
-strcpy_unalign3_copy2bytes:
-    strb    r2, [r0], #1
-    strb    r3, [r0]
-    m_ret   inst=pop
-
-strcpy_unalign3_copy3bytes:
-    strb    r2, [r0], #1
-    strb    r3, [r0], #1
-    strb    r4, [r0]
-    m_ret   inst=pop
-
-    .p2align 2
-    // Can read 2 bytes before possibly crossing a page.
-strcpy_unalign2:
-    ldrb    r2, [r1]
-    cbz     r2, strcpy_unalign_copy1byte
-    ldrb    r3, [r1, #1]
-    cbz     r3, strcpy_unalign_copy2bytes
-
-    ldr     r2, [r1], #4
-    ldr     r3, [r1], #4
-    pld     [r1, #64]
-
-    tst     r2, #0xff0000
-    beq     strcpy_unalign_copy3bytes
-    lsrs    ip, r2, #24
-    beq     strcpy_unalign_copy4bytes
-
-    sub     ip, r3, #0x01010101
-    bic     ip, ip, r3
-    ands    ip, ip, #0x80808080
-    bne     strcpy_zero_in_second_register
-
-    stmia   r0!, {r2, r3}
-    b       strcpy_unalign2
-
-    .p2align 2
-    // Can read 1 byte before possibly crossing a page.
-strcpy_unalign1:
-    ldrb    r2, [r1]
-    cbz     r2, strcpy_unalign_copy1byte
-
-    ldr     r2, [r1], #4
-    ldr     r3, [r1], #4
-
-    pld     [r1, #64]
-
-    sub     ip, r2, #0x01010101
-    bic     ip, ip, r2
-    ands    ip, ip, #0x80808080
-    bne     strcpy_zero_in_first_register
-
-    sub     ip, r3, #0x01010101
-    bic     ip, ip, r3
-    ands    ip, ip, #0x80808080
-    bne     strcpy_zero_in_second_register
-
-    stmia   r0!, {r2, r3}
-    b       strcpy_unalign1
-
-strcpy_unalign_copy1byte:
-    strb    r2, [r0]
-    m_ret   inst=pop
-
-strcpy_unalign_copy2bytes:
-    strb    r2, [r0], #1
-    strb    r3, [r0]
-    m_ret   inst=pop
-
-strcpy_unalign_copy3bytes:
-    strh    r2, [r0], #2
-    lsr     r2, #16
-    strb    r2, [r0]
-    m_ret   inst=pop
-
-strcpy_unalign_copy4bytes:
-    stmia   r0, {r2}
-    m_ret   inst=pop
-END(strcpy)
+#define STRCPY
+#include "string_copy.S"

libc/arch-arm/cortex-a9/bionic/string_copy.S

@@ -0,0 +1,535 @@
+/*
+ * 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.
+ */
+/*
+ * 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.
+ */
+
+#if !defined(STPCPY) && !defined(STRCPY)
+#error "Either STPCPY or STRCPY must be defined."
+#endif
+
+#include <private/bionic_asm.h>
+
+    .syntax unified
+
+    .thumb
+    .thumb_func
+
+#if defined(STPCPY)
+    .macro m_push
+    push    {r4, r5, lr}
+    .cfi_def_cfa_offset 12
+    .cfi_rel_offset r4, 0
+    .cfi_rel_offset r5, 4
+    .cfi_rel_offset lr, 8
+    .endm // m_push
+#else
+    .macro m_push
+    push    {r0, r4, r5, lr}
+    .cfi_def_cfa_offset 16
+    .cfi_rel_offset r0, 0
+    .cfi_rel_offset r4, 4
+    .cfi_rel_offset r5, 8
+    .cfi_rel_offset lr, 12
+    .endm // m_push
+#endif
+
+#if defined(STPCPY)
+    .macro m_ret inst
+    \inst   {r4, r5, pc}
+    .endm // m_ret
+#else
+    .macro m_ret inst
+    \inst   {r0, r4, r5, pc}
+    .endm // m_ret
+#endif
+
+    .macro m_copy_byte reg, cmd, label
+    ldrb    \reg, [r1], #1
+    strb    \reg, [r0], #1
+    \cmd    \reg, \label
+    .endm // m_copy_byte
+
+#if defined(STPCPY)
+ENTRY(stpcpy)
+#else
+ENTRY(strcpy)
+#endif
+    // Unroll the first 8 bytes that will be copied.
+    m_push
+    m_copy_byte reg=r2, cmd=cbz, label=.Lstringcopy_finish
+    m_copy_byte reg=r3, cmd=cbz, label=.Lstringcopy_finish
+    m_copy_byte reg=r4, cmd=cbz, label=.Lstringcopy_finish
+    m_copy_byte reg=r5, cmd=cbz, label=.Lstringcopy_finish
+    m_copy_byte reg=r2, cmd=cbz, label=.Lstringcopy_finish
+    m_copy_byte reg=r3, cmd=cbz, label=.Lstringcopy_finish
+    m_copy_byte reg=r4, cmd=cbz, label=.Lstringcopy_finish
+    m_copy_byte reg=r5, cmd=cbnz, label=.Lstringcopy_continue
+
+.Lstringcopy_finish:
+#if defined(STPCPY)
+    sub     r0, r0, #1
+#endif
+    m_ret   inst=pop
+
+.Lstringcopy_continue:
+    pld     [r1, #0]
+    ands    r3, r0, #7
+    bne     .Lstringcopy_align_dst
+
+.Lstringcopy_check_src_align:
+    // At this point dst is aligned to a double word, check if src
+    // is also aligned to a double word.
+    ands    r3, r1, #7
+    bne     .Lstringcopy_unaligned_copy
+
+    .p2align 2
+.Lstringcopy_mainloop:
+    ldmia   r1!, {r2, r3}
+
+    pld     [r1, #64]
+
+    sub     ip, r2, #0x01010101
+    bic     ip, ip, r2
+    ands    ip, ip, #0x80808080
+    bne     .Lstringcopy_zero_in_first_register
+
+    sub     ip, r3, #0x01010101
+    bic     ip, ip, r3
+    ands    ip, ip, #0x80808080
+    bne     .Lstringcopy_zero_in_second_register
+
+    stmia   r0!, {r2, r3}
+    b       .Lstringcopy_mainloop
+
+.Lstringcopy_zero_in_first_register:
+    lsls    lr, ip, #17
+    itt     ne
+    strbne  r2, [r0]
+    m_ret   inst=popne
+    itt     cs
+#if defined(STPCPY)
+    strhcs  r2, [r0], #1
+#else
+    strhcs  r2, [r0]
+#endif
+    m_ret   inst=popcs
+    lsls    ip, ip, #1
+    itt     eq
+#if defined(STPCPY)
+    streq   r2, [r0], #3
+#else
+    streq   r2, [r0]
+#endif
+    m_ret   inst=popeq
+    strh    r2, [r0], #2
+    lsr     r3, r2, #16
+    strb    r3, [r0]
+    m_ret   inst=pop
+
+.Lstringcopy_zero_in_second_register:
+    lsls    lr, ip, #17
+    ittt    ne
+    stmiane r0!, {r2}
+    strbne  r3, [r0]
+    m_ret   inst=popne
+    ittt    cs
+    strcs   r2, [r0], #4
+#if defined(STPCPY)
+    strhcs  r3, [r0], #1
+#else
+    strhcs  r3, [r0]
+#endif
+    m_ret   inst=popcs
+    lsls    ip, ip, #1
+#if defined(STPCPY)
+    ittt    eq
+#else
+    itt     eq
+#endif
+    stmiaeq r0, {r2, r3}
+#if defined(STPCPY)
+    addeq   r0, r0, #7
+#endif
+    m_ret   inst=popeq
+    stmia   r0!, {r2}
+    strh    r3, [r0], #2
+    lsr     r4, r3, #16
+    strb    r4, [r0]
+    m_ret   inst=pop
+
+.Lstringcopy_align_dst:
+    // Align to a double word (64 bits).
+    rsb     r3, r3, #8
+    lsls    ip, r3, #31
+    beq     .Lstringcopy_align_to_32
+
+    ldrb    r2, [r1], #1
+    strb    r2, [r0], #1
+    cbz     r2, .Lstringcopy_complete
+
+.Lstringcopy_align_to_32:
+    bcc     .Lstringcopy_align_to_64
+
+    ldrb    r4, [r1], #1
+    strb    r4, [r0], #1
+    cmp     r4, #0
+#if defined(STPCPY)
+    itt     eq
+    subeq   r0, r0, #1
+#else
+    it      eq
+#endif
+    m_ret   inst=popeq
+    ldrb    r5, [r1], #1
+    strb    r5, [r0], #1
+    cmp     r5, #0
+#if defined(STPCPY)
+    itt     eq
+    subeq   r0, r0, #1
+#else
+    it      eq
+#endif
+    m_ret   inst=popeq
+
+.Lstringcopy_align_to_64:
+    tst     r3, #4
+    beq     .Lstringcopy_check_src_align
+    ldr     r2, [r1], #4
+
+    sub     ip, r2, #0x01010101
+    bic     ip, ip, r2
+    ands    ip, ip, #0x80808080
+    bne     .Lstringcopy_zero_in_first_register
+    stmia   r0!, {r2}
+    b       .Lstringcopy_check_src_align
+
+.Lstringcopy_complete:
+#if defined(STPCPY)
+    sub     r0, r0, #1
+#endif
+    m_ret   inst=pop
+
+.Lstringcopy_unaligned_copy:
+    // Dst is aligned to a double word, while src is at an unknown alignment.
+    // There are 7 different versions of the unaligned copy code
+    // to prevent overreading the src. The mainloop of every single version
+    // will store 64 bits per loop. The difference is how much of src can
+    // be read without potentially crossing a page boundary.
+    tbb     [pc, r3]
+.Lstringcopy_unaligned_branchtable:
+    .byte 0
+    .byte ((.Lstringcopy_unalign7 - .Lstringcopy_unaligned_branchtable)/2)
+    .byte ((.Lstringcopy_unalign6 - .Lstringcopy_unaligned_branchtable)/2)
+    .byte ((.Lstringcopy_unalign5 - .Lstringcopy_unaligned_branchtable)/2)
+    .byte ((.Lstringcopy_unalign4 - .Lstringcopy_unaligned_branchtable)/2)
+    .byte ((.Lstringcopy_unalign3 - .Lstringcopy_unaligned_branchtable)/2)
+    .byte ((.Lstringcopy_unalign2 - .Lstringcopy_unaligned_branchtable)/2)
+    .byte ((.Lstringcopy_unalign1 - .Lstringcopy_unaligned_branchtable)/2)
+
+    .p2align 2
+    // Can read 7 bytes before possibly crossing a page.
+.Lstringcopy_unalign7:
+    ldr     r2, [r1], #4
+
+    sub     ip, r2, #0x01010101
+    bic     ip, ip, r2
+    ands    ip, ip, #0x80808080
+    bne     .Lstringcopy_zero_in_first_register
+
+    ldrb    r3, [r1]
+    cbz     r3, .Lstringcopy_unalign7_copy5bytes
+    ldrb    r4, [r1, #1]
+    cbz     r4, .Lstringcopy_unalign7_copy6bytes
+    ldrb    r5, [r1, #2]
+    cbz     r5, .Lstringcopy_unalign7_copy7bytes
+
+    ldr     r3, [r1], #4
+    pld     [r1, #64]
+
+    lsrs    ip, r3, #24
+    stmia   r0!, {r2, r3}
+#if defined(STPCPY)
+    beq     .Lstringcopy_finish
+#else
+    beq     .Lstringcopy_unalign_return
+#endif
+    b       .Lstringcopy_unalign7
+
+.Lstringcopy_unalign7_copy5bytes:
+    stmia   r0!, {r2}
+    strb    r3, [r0]
+.Lstringcopy_unalign_return:
+    m_ret   inst=pop
+
+.Lstringcopy_unalign7_copy6bytes:
+    stmia   r0!, {r2}
+    strb    r3, [r0], #1
+    strb    r4, [r0]
+    m_ret   inst=pop
+
+.Lstringcopy_unalign7_copy7bytes:
+    stmia   r0!, {r2}
+    strb    r3, [r0], #1
+    strb    r4, [r0], #1
+    strb    r5, [r0]
+    m_ret   inst=pop
+
+    .p2align 2
+    // Can read 6 bytes before possibly crossing a page.
+.Lstringcopy_unalign6:
+    ldr     r2, [r1], #4
+
+    sub     ip, r2, #0x01010101
+    bic     ip, ip, r2
+    ands    ip, ip, #0x80808080
+    bne     .Lstringcopy_zero_in_first_register
+
+    ldrb    r4, [r1]
+    cbz     r4, .Lstringcopy_unalign_copy5bytes
+    ldrb    r5, [r1, #1]
+    cbz     r5, .Lstringcopy_unalign_copy6bytes
+
+    ldr     r3, [r1], #4
+    pld     [r1, #64]
+
+    tst     r3, #0xff0000
+    beq     .Lstringcopy_unalign6_copy7bytes
+    lsrs    ip, r3, #24
+    stmia   r0!, {r2, r3}
+#if defined(STPCPY)
+    beq     .Lstringcopy_finish
+#else
+    beq     .Lstringcopy_unalign_return
+#endif
+    b       .Lstringcopy_unalign6
+
+.Lstringcopy_unalign6_copy7bytes:
+    stmia   r0!, {r2}
+    strh    r3, [r0], #2
+    lsr     r3, #16
+    strb    r3, [r0]
+    m_ret   inst=pop
+
+    .p2align 2
+    // Can read 5 bytes before possibly crossing a page.
+.Lstringcopy_unalign5:
+    ldr     r2, [r1], #4
+
+    sub     ip, r2, #0x01010101
+    bic     ip, ip, r2
+    ands    ip, ip, #0x80808080
+    bne     .Lstringcopy_zero_in_first_register
+
+    ldrb    r4, [r1]
+    cbz     r4, .Lstringcopy_unalign_copy5bytes
+
+    ldr     r3, [r1], #4
+
+    pld     [r1, #64]
+
+    sub     ip, r3, #0x01010101
+    bic     ip, ip, r3
+    ands    ip, ip, #0x80808080
+    bne     .Lstringcopy_zero_in_second_register
+
+    stmia   r0!, {r2, r3}
+    b       .Lstringcopy_unalign5
+
+.Lstringcopy_unalign_copy5bytes:
+    stmia   r0!, {r2}
+    strb    r4, [r0]
+    m_ret   inst=pop
+
+.Lstringcopy_unalign_copy6bytes:
+    stmia   r0!, {r2}
+    strb    r4, [r0], #1
+    strb    r5, [r0]
+    m_ret   inst=pop
+
+    .p2align 2
+    // Can read 4 bytes before possibly crossing a page.
+.Lstringcopy_unalign4:
+    ldmia   r1!, {r2}
+
+    sub     ip, r2, #0x01010101
+    bic     ip, ip, r2
+    ands    ip, ip, #0x80808080
+    bne     .Lstringcopy_zero_in_first_register
+
+    ldmia   r1!, {r3}
+    pld     [r1, #64]
+
+    sub     ip, r3, #0x01010101
+    bic     ip, ip, r3
+    ands    ip, ip, #0x80808080
+    bne     .Lstringcopy_zero_in_second_register
+
+    stmia   r0!, {r2, r3}
+    b       .Lstringcopy_unalign4
+
+    .p2align 2
+    // Can read 3 bytes before possibly crossing a page.
+.Lstringcopy_unalign3:
+    ldrb    r2, [r1]
+    cbz     r2, .Lstringcopy_unalign3_copy1byte
+    ldrb    r3, [r1, #1]
+    cbz     r3, .Lstringcopy_unalign3_copy2bytes
+    ldrb    r4, [r1, #2]
+    cbz     r4, .Lstringcopy_unalign3_copy3bytes
+
+    ldr     r2, [r1], #4
+    ldr     r3, [r1], #4
+
+    pld     [r1, #64]
+
+    lsrs    lr, r2, #24
+    beq     .Lstringcopy_unalign_copy4bytes
+
+    sub     ip, r3, #0x01010101
+    bic     ip, ip, r3
+    ands    ip, ip, #0x80808080
+    bne     .Lstringcopy_zero_in_second_register
+
+    stmia   r0!, {r2, r3}
+    b       .Lstringcopy_unalign3
+
+.Lstringcopy_unalign3_copy1byte:
+    strb    r2, [r0]
+    m_ret   inst=pop
+
+.Lstringcopy_unalign3_copy2bytes:
+    strb    r2, [r0], #1
+    strb    r3, [r0]
+    m_ret   inst=pop
+
+.Lstringcopy_unalign3_copy3bytes:
+    strb    r2, [r0], #1
+    strb    r3, [r0], #1
+    strb    r4, [r0]
+    m_ret   inst=pop
+
+    .p2align 2
+    // Can read 2 bytes before possibly crossing a page.
+.Lstringcopy_unalign2:
+    ldrb    r2, [r1]
+    cbz     r2, .Lstringcopy_unalign_copy1byte
+    ldrb    r3, [r1, #1]
+    cbz     r3, .Lstringcopy_unalign_copy2bytes
+
+    ldr     r2, [r1], #4
+    ldr     r3, [r1], #4
+    pld     [r1, #64]
+
+    tst     r2, #0xff0000
+    beq     .Lstringcopy_unalign_copy3bytes
+    lsrs    ip, r2, #24
+    beq     .Lstringcopy_unalign_copy4bytes
+
+    sub     ip, r3, #0x01010101
+    bic     ip, ip, r3
+    ands    ip, ip, #0x80808080
+    bne     .Lstringcopy_zero_in_second_register
+
+    stmia   r0!, {r2, r3}
+    b       .Lstringcopy_unalign2
+
+    .p2align 2
+    // Can read 1 byte before possibly crossing a page.
+.Lstringcopy_unalign1:
+    ldrb    r2, [r1]
+    cbz     r2, .Lstringcopy_unalign_copy1byte
+
+    ldr     r2, [r1], #4
+    ldr     r3, [r1], #4
+
+    pld     [r1, #64]
+
+    sub     ip, r2, #0x01010101
+    bic     ip, ip, r2
+    ands    ip, ip, #0x80808080
+    bne     .Lstringcopy_zero_in_first_register
+
+    sub     ip, r3, #0x01010101
+    bic     ip, ip, r3
+    ands    ip, ip, #0x80808080
+    bne     .Lstringcopy_zero_in_second_register
+
+    stmia   r0!, {r2, r3}
+    b       .Lstringcopy_unalign1
+
+.Lstringcopy_unalign_copy1byte:
+    strb    r2, [r0]
+    m_ret   inst=pop
+
+.Lstringcopy_unalign_copy2bytes:
+    strb    r2, [r0], #1
+    strb    r3, [r0]
+    m_ret   inst=pop
+
+.Lstringcopy_unalign_copy3bytes:
+    strh    r2, [r0], #2
+    lsr     r2, #16
+    strb    r2, [r0]
+    m_ret   inst=pop
+
+.Lstringcopy_unalign_copy4bytes:
+    stmia   r0, {r2}
+#if defined(STPCPY)
+    add     r0, r0, #3
+#endif
+    m_ret   inst=pop
+#if defined(STPCPY)
+END(stpcpy)
+#else
+END(strcpy)
+#endif

libc/arch-arm/cortex-a9/cortex-a9.mk

@@ -1,10 +1,11 @@
 libc_bionic_src_files_arm += \
     arch-arm/cortex-a9/bionic/memcpy.S \
     arch-arm/cortex-a9/bionic/memset.S \
+    arch-arm/cortex-a9/bionic/stpcpy.S \
     arch-arm/cortex-a9/bionic/strcat.S \
+    arch-arm/cortex-a9/bionic/__strcat_chk.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 \
+    arch-arm/cortex-a9/bionic/strlen.S \
     bionic/memmove.c \

libc/arch-arm/denver/bionic/__strcat_chk.S

@@ -40,12 +40,10 @@
 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
@@ -195,9 +193,6 @@ END(__strcat_chk)
 #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

libc/arch-arm/denver/bionic/__strcpy_chk.S

@@ -39,7 +39,6 @@
 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
@@ -161,7 +160,6 @@ END(__strcpy_chk)
 #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

libc/arch-arm/denver/bionic/memcpy.S

@@ -72,7 +72,6 @@ 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
@@ -85,7 +84,6 @@ END(memcpy)
 ENTRY_PRIVATE(__memcpy_chk_fail)
         // Preserve lr for backtrace.
         push    {lr}
-        .save   {lr}
         .cfi_def_cfa_offset 4
         .cfi_rel_offset lr, 0
 

libc/arch-arm/denver/bionic/memset.S

@@ -37,6 +37,7 @@
          * memset() returns its first argument.
          */
 
+        .cpu        cortex-a15
         .fpu        neon
         .syntax     unified
 

libc/arch-arm/denver/denver.mk

@@ -7,7 +7,8 @@ libc_bionic_src_files_arm += \
 
 # Use cortex-a15 versions of strcat/strcpy/strlen.
 libc_bionic_src_files_arm += \
+    arch-arm/cortex-a15/bionic/stpcpy.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/strcmp.S \

libc/arch-arm/generic/bionic/memcpy.S

@@ -39,7 +39,7 @@
 
 ENTRY(__memcpy_chk)
         cmp         r2, r3
-        bgt         fortify_check_failed
+        bhi         __memcpy_chk_fail
 
         // Fall through to memcpy...
 END(__memcpy_chk)
@@ -49,11 +49,14 @@ ENTRY(memcpy)
          * ARM ABI. Since we have to save R0, we might as well save R4
          * which we can use for better pipelining of the reads below
          */
-        .save       {r0, r4, lr}
         stmfd       sp!, {r0, r4, lr}
+        .cfi_def_cfa_offset 12
+        .cfi_rel_offset r0, 0
+        .cfi_rel_offset r4, 4
+        .cfi_rel_offset lr, 8
         /* Making room for r5-r11 which will be spilled later */
-        .pad        #28
         sub         sp, sp, #28
+        .cfi_adjust_cfa_offset 28
 
         // preload the destination because we'll align it to a cache line
         // with small writes. Also start the source "pump".
@@ -63,14 +66,14 @@ ENTRY(memcpy)
 
         /* it simplifies things to take care of len<4 early */
         cmp         r2, #4
-        blo         copy_last_3_and_return
+        blo         .Lcopy_last_3_and_return
 
         /* compute the offset to align the source
          * offset = (4-(src&3))&3 = -src & 3
          */
         rsb         r3, r1, #0
         ands        r3, r3, #3
-        beq         src_aligned
+        beq         .Lsrc_aligned
 
         /* align source to 32 bits. We need to insert 2 instructions between
          * a ldr[b|h] and str[b|h] because byte and half-word instructions
@@ -85,12 +88,12 @@ ENTRY(memcpy)
         strcsb      r4, [r0], #1
         strcsb      r12,[r0], #1
 
-src_aligned:
+.Lsrc_aligned:
 
         /* see if src and dst are aligned together (congruent) */
         eor         r12, r0, r1
         tst         r12, #3
-        bne         non_congruent
+        bne         .Lnon_congruent
 
         /* Use post-incriment mode for stm to spill r5-r11 to reserved stack
          * frame. Don't update sp.
@@ -100,7 +103,7 @@ src_aligned:
         /* align the destination to a cache-line */
         rsb         r3, r0, #0
         ands        r3, r3, #0x1C
-        beq         congruent_aligned32
+        beq         .Lcongruent_aligned32
         cmp         r3, r2
         andhi       r3, r2, #0x1C
 
@@ -115,14 +118,14 @@ src_aligned:
         strne       r10,[r0], #4
         sub         r2, r2, r3
 
-congruent_aligned32:
+.Lcongruent_aligned32:
         /*
          * here source is aligned to 32 bytes.
          */
 
-cached_aligned32:
+.Lcached_aligned32:
         subs        r2, r2, #32
-        blo         less_than_32_left
+        blo         .Lless_than_32_left
 
         /*
          * We preload a cache-line up to 64 bytes ahead. On the 926, this will
@@ -160,10 +163,7 @@ cached_aligned32:
 
         add         r2, r2, #32
 
-
-
-
-less_than_32_left:
+.Lless_than_32_left:
         /*
          * less than 32 bytes left at this point (length in r2)
          */
@@ -197,7 +197,7 @@ less_than_32_left:
 
         /********************************************************************/
 
-non_congruent:
+.Lnon_congruent:
         /*
          * here source is aligned to 4 bytes
          * but destination is not.
@@ -207,9 +207,9 @@ non_congruent:
          * partial words in the shift queue)
          */
         cmp         r2, #4
-        blo         copy_last_3_and_return
+        blo         .Lcopy_last_3_and_return
 
-        /* Use post-incriment mode for stm to spill r5-r11 to reserved stack
+        /* Use post-increment mode for stm to spill r5-r11 to reserved stack
          * frame. Don't update sp.
          */
         stmea       sp, {r5-r11}
@@ -236,7 +236,7 @@ non_congruent:
         movcs       r3, r3, lsr #8
 
         cmp         r2, #4
-        blo         partial_word_tail
+        blo         .Lpartial_word_tail
 
         /* Align destination to 32 bytes (cache line boundary) */
 1:      tst         r0, #0x1c
@@ -248,11 +248,11 @@ non_congruent:
         str         r4, [r0], #4
         cmp         r2, #4
         bhs         1b
-        blo         partial_word_tail
+        blo         .Lpartial_word_tail
 
         /* copy 32 bytes at a time */
 2:      subs        r2, r2, #32
-        blo         less_than_thirtytwo
+        blo         .Lless_than_thirtytwo
 
         /* Use immediate mode for the shifts, because there is an extra cycle
          * for register shifts, which could account for up to 50% of
@@ -260,11 +260,11 @@ non_congruent:
          */
 
         cmp         r12, #24
-        beq         loop24
+        beq         .Lloop24
         cmp         r12, #8
-        beq         loop8
+        beq         .Lloop8
 
-loop16:
+.Lloop16:
         ldr         r12, [r1], #4
 1:      mov         r4, r12
         ldmia       r1!, {   r5,r6,r7,  r8,r9,r10,r11}
@@ -289,9 +289,9 @@ loop16:
         stmia       r0!, {r3,r4,r5,r6, r7,r8,r9,r10}
         mov         r3, r11,        lsr #16
         bhs         1b
-        b           less_than_thirtytwo
+        b           .Lless_than_thirtytwo
 
-loop8:
+.Lloop8:
         ldr         r12, [r1], #4
 1:      mov         r4, r12
         ldmia       r1!, {   r5,r6,r7,  r8,r9,r10,r11}
@@ -316,9 +316,9 @@ loop8:
         stmia       r0!, {r3,r4,r5,r6, r7,r8,r9,r10}
         mov         r3, r11,        lsr #8
         bhs         1b
-        b           less_than_thirtytwo
+        b           .Lless_than_thirtytwo
 
-loop24:
+.Lloop24:
         ldr         r12, [r1], #4
 1:      mov         r4, r12
         ldmia       r1!, {   r5,r6,r7,  r8,r9,r10,r11}
@@ -345,12 +345,12 @@ loop24:
         bhs         1b
 
 
-less_than_thirtytwo:
+.Lless_than_thirtytwo:
         /* copy the last 0 to 31 bytes of the source */
         rsb         r12, lr, #32        /* we corrupted r12, recompute it  */
         add         r2, r2, #32
         cmp         r2, #4
-        blo         partial_word_tail
+        blo         .Lpartial_word_tail
 
 1:      ldr         r5, [r1], #4
         sub         r2, r2, #4
@@ -360,7 +360,7 @@ less_than_thirtytwo:
         cmp         r2, #4
         bhs         1b
 
-partial_word_tail:
+.Lpartial_word_tail:
         /* we have a partial word in the input buffer */
         movs        r5, lr, lsl #(31-3)
         strmib      r3, [r0], #1
@@ -372,7 +372,7 @@ partial_word_tail:
         /* Refill spilled registers from the stack. Don't update sp. */
         ldmfd       sp, {r5-r11}
 
-copy_last_3_and_return:
+.Lcopy_last_3_and_return:
         movs        r2, r2, lsl #31 /* copy remaining 0, 1, 2 or 3 bytes */
         ldrmib      r2, [r1], #1
         ldrcsb      r3, [r1], #1
@@ -385,9 +385,15 @@ copy_last_3_and_return:
         add         sp,  sp, #28
         ldmfd       sp!, {r0, r4, lr}
         bx          lr
+END(memcpy)
 
         // Only reached when the __memcpy_chk check fails.
-fortify_check_failed:
+ENTRY_PRIVATE(__memcpy_chk_fail)
+        // 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:
@@ -397,7 +403,7 @@ error_code:
         .word   BIONIC_EVENT_MEMCPY_BUFFER_OVERFLOW
 error_message:
         .word   error_string-(1b+8)
-END(memcpy)
+END(__memcpy_chk_fail)
 
         .data
 error_string:

libc/arch-arm/generic/generic.mk

@@ -7,4 +7,5 @@ libc_bionic_src_files_arm += \
     bionic/memmove.c \
     bionic/__strcat_chk.cpp \
     bionic/__strcpy_chk.cpp \
+    upstream-openbsd/lib/libc/string/stpcpy.c \
     upstream-openbsd/lib/libc/string/strcat.c \

libc/arch-arm/include/machine/asm.h

@@ -38,9 +38,7 @@
 #ifndef _ARM32_ASM_H_
 #define _ARM32_ASM_H_
 
-#ifndef _ALIGN_TEXT
-# define _ALIGN_TEXT .align 0
-#endif
+#define __bionic_asm_align 0
 
 #undef __bionic_asm_custom_entry
 #undef __bionic_asm_custom_end
@@ -50,10 +48,4 @@
 #undef __bionic_asm_function_type
 #define __bionic_asm_function_type #function
 
-#if defined(__ELF__) && defined(PIC)
-#define PIC_SYM(x,y) x ## ( ## y ## )
-#else
-#define PIC_SYM(x,y) x
-#endif
-
 #endif /* !_ARM_ASM_H_ */

libc/arch-arm/include/machine/cpu-features.h

@@ -28,14 +28,6 @@
 #ifndef _ARM_MACHINE_CPU_FEATURES_H
 #define _ARM_MACHINE_CPU_FEATURES_H
 
-/* The purpose of this file is to define several macros corresponding
- * to CPU features that may or may not be available at build time on
- * on the target CPU.
- *
- * This is done to abstract us from the various ARM Architecture
- * quirks and alphabet soup.
- */
-
 /* __ARM_ARCH__ is a number corresponding to the ARM revision
  * we're going to support. Our toolchain doesn't define __ARM_ARCH__
  * so try to guess it.
@@ -53,31 +45,4 @@
 #  endif
 #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
-
-/* define __ARM_HAVE_LDREXD for ARMv7 architecture
- * (also present in ARMv6K, but not implemented in ARMv7-M, neither of which
- * we care about)
- */
-#if __ARM_ARCH__ >= 7
-#  define __ARM_HAVE_LDREXD
-#endif
-
-/* define _ARM_HAVE_VFP if we have VFPv3
- */
-#if __ARM_ARCH__ >= 7 && defined __VFP_FP__
-#  define __ARM_HAVE_VFP
-#endif
-
-/* define _ARM_HAVE_NEON for ARMv7 architecture if we support the
- * Neon SIMD instruction set extensions. This also implies
- * that VFPv3-D32 is supported.
- */
-#if __ARM_ARCH__ >= 7 && defined __ARM_NEON__
-#  define __ARM_HAVE_NEON
-#endif
-
 #endif /* _ARM_MACHINE_CPU_FEATURES_H */

libc/arch-arm/include/machine/endian.h

@@ -1,79 +0,0 @@
-/*	$OpenBSD: endian.h,v 1.3 2005/12/13 00:35:23 millert Exp $	*/
-
-/*
- * 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.
- */
-
-#ifndef _ARM_ENDIAN_H_
-#define _ARM_ENDIAN_H_
-
-#ifdef __GNUC__
-
-/* 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.
- *
- * REV Rd, Rm
- *   Rd and Rm must both be Lo registers.
- *
- * REV16 Rd, Rm
- *   Rd and Rm must both be Lo registers.
- *
- * The +l constraint takes care of this without constraining us in ARM mode.
- */
-#define __swap16md(x) ({                                        \
-    register u_int16_t _x = (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));             \
-    _x;                                                         \
-})
-
-#define __swap64md(x) ({                                        \
-    u_int64_t _swap64md_x = (x);                                \
-    (u_int64_t) __swap32md(_swap64md_x >> 32) |                 \
-        (u_int64_t) __swap32md(_swap64md_x & 0xffffffff) << 32; \
-})
-
-/* Tell sys/endian.h we have MD variants of the swap macros.  */
-#define MD_SWAP
-
-#endif  /* __GNUC__ */
-
-#if defined(__ARMEB__)
-#define _BYTE_ORDER _BIG_ENDIAN
-#else
-#define _BYTE_ORDER _LITTLE_ENDIAN
-#endif
-#define __STRICT_ALIGNMENT
-#include <sys/types.h>
-#include <sys/endian.h>
-
-#endif  /* !_ARM_ENDIAN_H_ */

libc/arch-arm/include/machine/exec.h

@@ -1,50 +0,0 @@
-/*	$OpenBSD: exec.h,v 1.9 2003/04/17 03:42:14 drahn Exp $	*/
-/*	$NetBSD: exec.h,v 1.6 1994/10/27 04:16:05 cgd Exp $	*/
-
-/*
- * Copyright (c) 1993 Christopher G. Demetriou
- * 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 author may not 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 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 _ARM_EXEC_H_
-#define _ARM_EXEC_H_
-
-#define __LDPGSZ	4096
-
-#define NATIVE_EXEC_ELF
-
-#define ARCH_ELFSIZE		32
-
-#define ELF_TARG_CLASS		ELFCLASS32
-#define ELF_TARG_DATA		ELFDATA2LSB
-#define ELF_TARG_MACH		EM_ARM
-
-#define _NLIST_DO_AOUT
-#define _NLIST_DO_ELF
-
-#define _KERN_DO_AOUT
-#define _KERN_DO_ELF
-
-#endif  /* _ARM_EXEC_H_ */

libc/arch-arm/include/machine/setjmp.h

@@ -26,10 +26,6 @@
  * SUCH DAMAGE.
  */
 
-/*
- * machine/setjmp.h: machine dependent setjmp-related information.
- */
-
 /* _JBLEN is the size of a jmp_buf in longs.
  * Do not modify this value or you will break the ABI !
  *
@@ -37,46 +33,3 @@
  * that was replaced by this one.
  */
 #define _JBLEN  64
-
-/* According to the ARM AAPCS document, we only need to save
- * the following registers:
- *
- *  Core   r4-r14
- *
- *  VFP    d8-d15  (see section 5.1.2.1)
- *
- *      Registers s16-s31 (d8-d15, q4-q7) must be preserved across subroutine
- *      calls; registers s0-s15 (d0-d7, q0-q3) do not need to be preserved
- *      (and can be used for passing arguments or returning results in standard
- *      procedure-call variants). Registers d16-d31 (q8-q15), if present, do
- *      not need to be preserved.
- *
- *  FPSCR  saved because GLibc does saves it too.
- *
- */
-
-/* The internal structure of a jmp_buf is totally private.
- * Current layout (may change in the future):
- *
- * word   name         description
- * 0      magic        magic number
- * 1      sigmask      signal mask (not used with _setjmp / _longjmp)
- * 2      float_base   base of float registers (d8 to d15)
- * 18     float_state  floating-point status and control register
- * 19     core_base    base of core registers (r4 to r14)
- * 30     reserved     reserved entries (room to grow)
- * 64
- *
- * NOTE: float_base must be at an even word index, since the
- *       FP registers will be loaded/stored with instructions
- *       that expect 8-byte alignment.
- */
-
-#define _JB_MAGIC       0
-#define _JB_SIGMASK     (_JB_MAGIC+1)
-#define _JB_FLOAT_BASE  (_JB_SIGMASK+1)
-#define _JB_FLOAT_STATE (_JB_FLOAT_BASE + (15-8+1)*2)
-#define _JB_CORE_BASE   (_JB_FLOAT_STATE+1)
-
-#define _JB_MAGIC__SETJMP	0x4278f500
-#define _JB_MAGIC_SETJMP	0x4278f501

libc/arch-arm/krait/bionic/__strcat_chk.S

@@ -40,12 +40,10 @@
 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
@@ -194,8 +192,6 @@ END(__strcat_chk)
 #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

libc/arch-arm/krait/bionic/__strcpy_chk.S

@@ -39,7 +39,6 @@
 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
@@ -161,7 +160,6 @@ END(__strcpy_chk)
 #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

libc/arch-arm/krait/bionic/memcpy.S

@@ -53,7 +53,6 @@ END(__memcpy_chk)
 ENTRY(memcpy)
         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
@@ -66,7 +65,6 @@ END(memcpy)
 ENTRY_PRIVATE(__memcpy_chk_fail)
         // Preserve lr for backtrace.
         push    {lr}
-        .save   {lr}
         .cfi_def_cfa_offset 4
         .cfi_rel_offset lr, 0
 

libc/arch-arm/krait/bionic/memcpy_base.S

@@ -36,7 +36,6 @@
 // Assumes neon instructions and a cache line size of 32 bytes.
 
 ENTRY_PRIVATE(MEMCPY_BASE)
-        .save {r0, lr}
         .cfi_def_cfa_offset 8
         .cfi_rel_offset r0, 0
         .cfi_rel_offset lr, 4

libc/arch-arm/krait/bionic/memset.S

@@ -43,7 +43,6 @@ ENTRY(__memset_chk)
         bls         .L_done
 
         // Preserve lr for backtrace.
-        .save       {lr}
         push        {lr}
         .cfi_def_cfa_offset 4
         .cfi_rel_offset lr, 0
@@ -69,7 +68,6 @@ END(bzero)
 
 /* memset() returns its first argument.  */
 ENTRY(memset)
-        .save       {r0}
         stmfd       sp!, {r0}
         .cfi_def_cfa_offset 4
         .cfi_rel_offset r0, 0

libc/arch-arm/krait/bionic/strcmp.S

@@ -168,7 +168,6 @@ ENTRY(strcmp)
         bne     .L_do_align
 
         /* Fast path.  */
-        .save   {r4-r7}
         init
 
 .L_doubleword_aligned:

libc/arch-arm/krait/krait.mk

@@ -7,6 +7,7 @@ libc_bionic_src_files_arm += \
 
 # Use cortex-a15 versions of strcat/strcpy/strlen and standard memmove
 libc_bionic_src_files_arm += \
+    arch-arm/cortex-a15/bionic/stpcpy.S \
     arch-arm/cortex-a15/bionic/strcat.S \
     arch-arm/cortex-a15/bionic/strcpy.S \
     arch-arm/cortex-a15/bionic/strlen.S \

libc/arch-arm/syscalls/__clock_nanosleep.S

@@ -2,7 +2,7 @@
 
 #include <private/bionic_asm.h>
 
-ENTRY(clock_nanosleep)
+ENTRY(__clock_nanosleep)
     mov     ip, r7
     ldr     r7, =__NR_clock_nanosleep
     swi     #0
@@ -11,4 +11,4 @@ ENTRY(clock_nanosleep)
     bxls    lr
     neg     r0, r0
     b       __set_errno_internal
-END(clock_nanosleep)
+END(__clock_nanosleep)

libc/arch-arm/syscalls/__rt_sigqueueinfo.S

@@ -0,0 +1,14 @@
+/* Generated by gensyscalls.py. Do not edit. */
+
+#include <private/bionic_asm.h>
+
+ENTRY(__rt_sigqueueinfo)
+    mov     ip, r7
+    ldr     r7, =__NR_rt_sigqueueinfo
+    swi     #0
+    mov     r7, ip
+    cmn     r0, #(MAX_ERRNO + 1)
+    bxls    lr
+    neg     r0, r0
+    b       __set_errno_internal
+END(__rt_sigqueueinfo)

libc/arch-arm/syscalls/sethostname.S

@@ -0,0 +1,14 @@
+/* Generated by gensyscalls.py. Do not edit. */
+
+#include <private/bionic_asm.h>
+
+ENTRY(sethostname)
+    mov     ip, r7
+    ldr     r7, =__NR_sethostname
+    swi     #0
+    mov     r7, ip
+    cmn     r0, #(MAX_ERRNO + 1)
+    bxls    lr
+    neg     r0, r0
+    b       __set_errno_internal
+END(sethostname)

libc/arch-arm64/arm64.mk

@@ -1,8 +1,17 @@
-# arm64 specific configs
+# 64-bit arm.
 
-libc_common_src_files_arm64 := \
+#
+# Default implementations of functions that are commonly optimized.
+#
+
+libc_bionic_src_files_arm64 += \
+    bionic/__memset_chk.cpp \
+    bionic/__strcpy_chk.cpp \
+    bionic/__strcat_chk.cpp \
     bionic/memrchr.c \
     bionic/strrchr.cpp \
+
+libc_freebsd_src_files_arm64 += \
     upstream-freebsd/lib/libc/string/wcscat.c \
     upstream-freebsd/lib/libc/string/wcschr.c \
     upstream-freebsd/lib/libc/string/wcscmp.c \
@@ -10,6 +19,8 @@ libc_common_src_files_arm64 := \
     upstream-freebsd/lib/libc/string/wcslen.c \
     upstream-freebsd/lib/libc/string/wcsrchr.c \
     upstream-freebsd/lib/libc/string/wmemcmp.c \
+
+libc_openbsd_src_files_arm64 += \
     upstream-openbsd/lib/libc/string/stpncpy.c \
     upstream-openbsd/lib/libc/string/strcat.c \
     upstream-openbsd/lib/libc/string/strlcat.c \
@@ -17,23 +28,15 @@ libc_common_src_files_arm64 := \
     upstream-openbsd/lib/libc/string/strncat.c \
     upstream-openbsd/lib/libc/string/strncpy.c \
 
-# Fortify implementations of libc functions.
-libc_common_src_files_arm64 += \
-    bionic/__memcpy_chk.cpp \
-    bionic/__memset_chk.cpp \
-    bionic/__strcpy_chk.cpp \
-    bionic/__strcat_chk.cpp \
+#
+# Inherently architecture-specific code.
+#
 
-##########################################
-### CPU specific source files
-libc_bionic_src_files_arm64 := \
+libc_bionic_src_files_arm64 += \
     arch-arm64/bionic/__bionic_clone.S \
     arch-arm64/bionic/_exit_with_stack_teardown.S \
-    arch-arm64/bionic/__rt_sigreturn.S \
-    arch-arm64/bionic/_setjmp.S \
     arch-arm64/bionic/setjmp.S \
     arch-arm64/bionic/__set_tls.c \
-    arch-arm64/bionic/sigsetjmp.S \
     arch-arm64/bionic/syscall.S \
     arch-arm64/bionic/vfork.S \
 
@@ -53,7 +56,7 @@ ifeq ($(strip $(TARGET_CPU_VARIANT)),)
 endif
 cpu_variant_mk := $(LOCAL_PATH)/arch-arm64/$(TARGET_CPU_VARIANT)/$(TARGET_CPU_VARIANT).mk
 ifeq ($(wildcard $(cpu_variant_mk)),)
-$(error "TARGET_CPU_VARIANT not set or set to an unknown value. Possible values are generic, generic-neon, denver64. Use generic for devices that do not have a CPU similar to any of the supported cpu variants.")
+$(error "TARGET_CPU_VARIANT not set or set to an unknown value. Possible values are generic, denver64. 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_variank_mk)

libc/arch-arm64/bionic/__bionic_clone.S

@@ -31,8 +31,8 @@
 // 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)
-    # Copy 'fn' and 'arg' onto the child stack.
-    stp     x5, x6, [x1, #-16]
+    # Push 'fn' and 'arg' onto the child stack.
+    stp     x5, x6, [x1, #-16]!
 
     # Make the system call.
     mov     x8, __NR_clone
@@ -49,12 +49,12 @@ ENTRY(__bionic_clone)
     ret
 
 .L_bc_child:
-    # We're in the child now. Set the end of the frame record chain...
-    mov     x29, xzr
-    # Setting x30 to 0 will make the unwinder stop at __start_thread
-    mov     x30, xzr
-    # ...and call __start_thread with the 'fn' and 'arg' we stored on the child stack.
-    ldp     x0, x1, [sp, #-16]
+    # We're in the child now. Set the end of the frame record chain.
+    mov     x29, #0
+    # Setting x30 to 0 will make the unwinder stop at __start_thread.
+    mov     x30, #0
+    # Call __start_thread with the 'fn' and 'arg' we stored on the child stack.
+    ldp     x0, x1, [sp], #16
     b       __start_thread
 END(__bionic_clone)
 .hidden __bionic_clone

libc/arch-arm64/bionic/__rt_sigreturn.S

@@ -1,34 +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>
-
-ENTRY_PRIVATE(__rt_sigreturn)
-  mov     x8, __NR_rt_sigreturn
-  svc     #0
-END(__rt_sigreturn)

libc/arch-arm64/bionic/_setjmp.S

@@ -1,111 +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 <machine/setjmp.h>
-
-/*
- * C library - _setjmp, _longjmp
- *
- * _longjmp(jmp_buf state, int value)
- * will generate a "return(v)" from the last call to _setjmp(state) by restoring
- * registers from the stack. The previous signal state is NOT restored.
- *
- * NOTE: x0 return value
- *       x9-x15 temporary registers
- */
-
-ENTRY(_setjmp)
-    /* store magic number */
-    ldr     w9, .L_setjmp_magic
-    str     w9, [x0, #(_JB_MAGIC * 4)]
-
-    /* store core registers */
-    mov     x10, sp
-    stp     x30, x10, [x0, #(_JB_CORE_BASE * 4 + 16 * 0)]
-    stp     x28, x29, [x0, #(_JB_CORE_BASE * 4 + 16 * 1)]
-    stp     x26, x27, [x0, #(_JB_CORE_BASE * 4 + 16 * 2)]
-    stp     x24, x25, [x0, #(_JB_CORE_BASE * 4 + 16 * 3)]
-    stp     x22, x23, [x0, #(_JB_CORE_BASE * 4 + 16 * 4)]
-    stp     x20, x21, [x0, #(_JB_CORE_BASE * 4 + 16 * 5)]
-    str     x19,      [x0, #(_JB_CORE_BASE * 4 + 16 * 6)]
-
-    /* store floating point registers */
-    stp     d14, d15, [x0, #(_JB_FLOAT_BASE * 4 + 16 * 0)]
-    stp     d12, d13, [x0, #(_JB_FLOAT_BASE * 4 + 16 * 1)]
-    stp     d10, d11, [x0, #(_JB_FLOAT_BASE * 4 + 16 * 2)]
-    stp     d8,  d9,  [x0, #(_JB_FLOAT_BASE * 4 + 16 * 3)]
-
-    mov     w0, wzr
-    ret
-END(_setjmp)
-
-.L_setjmp_magic:
-    .word   _JB_MAGIC__SETJMP
-
-ENTRY(_longjmp)
-    /* check magic */
-    ldr     w9, .L_setjmp_magic
-    ldr     w10, [x0, #(_JB_MAGIC * 4)]
-    cmp     w9, w10
-    b.ne    .L_fail
-
-    /* restore core registers */
-    ldp     x30, x10, [x0, #(_JB_CORE_BASE * 4 + 16 * 0)]
-    mov     sp, x10
-    ldp     x28, x29, [x0, #(_JB_CORE_BASE * 4 + 16 * 1)]
-    ldp     x26, x27, [x0, #(_JB_CORE_BASE * 4 + 16 * 2)]
-    ldp     x24, x25, [x0, #(_JB_CORE_BASE * 4 + 16 * 3)]
-    ldp     x22, x23, [x0, #(_JB_CORE_BASE * 4 + 16 * 4)]
-    ldp     x20, x21, [x0, #(_JB_CORE_BASE * 4 + 16 * 5)]
-    ldr     x19,      [x0, #(_JB_CORE_BASE * 4 + 16 * 6)]
-
-    /* restore floating point registers */
-    ldp     d14, d15, [x0, #(_JB_FLOAT_BASE * 4 + 16 * 0)]
-    ldp     d12, d13, [x0, #(_JB_FLOAT_BASE * 4 + 16 * 1)]
-    ldp     d10, d11, [x0, #(_JB_FLOAT_BASE * 4 + 16 * 2)]
-    ldp     d8,  d9,  [x0, #(_JB_FLOAT_BASE * 4 + 16 * 3)]
-
-    /* validate sp (sp mod 16 = 0) and lr (lr mod 4 = 0) */
-    tst     x30, #3
-    b.ne    .L_fail
-    mov     x10, sp
-    tst     x10, #15
-    b.ne    .L_fail
-
-    /* set return value */
-    cmp     w1, wzr
-    csinc   w0, w1, wzr, ne
-    ret
-
-    /* validation failed, die die die */
-.L_fail:
-    bl      PIC_SYM(longjmperror, PLT)
-    bl      PIC_SYM(abort, PLT)
-    b        . - 8       /* Cannot get here */
-END(_longjmp)

libc/arch-arm64/bionic/setjmp.S

@@ -27,97 +27,126 @@
  */
 
 #include <private/bionic_asm.h>
-#include <machine/setjmp.h>
 
-/*
- * C library - _setjmp, _longjmp
- *
- * _longjmp(jmp_buf state, int value)
- * will generate a "return(v)" from the last call to _setjmp(state) by restoring
- * registers from the stack. The previous signal state is NOT restored.
- *
- * NOTE: x0 return value
- *       x9-x15 temporary registers
- */
+// According to AARCH64 PCS document we need to save the following
+// registers:
+//
+// Core     x19 - x30, sp (see section 5.1.1)
+// VFP      d8 - d15 (see section 5.1.2)
+//
+// NOTE: All the registers saved here will have 64 bit vales.
+//       AAPCS mandates that the higher part of q registers do not need to
+//       be saved by the callee.
+
+#define _JB_SIGFLAG     0
+#define _JB_SIGMASK     (_JB_SIGFLAG + 1)
+#define _JB_X30_SP      (_JB_SIGMASK + 1)
+#define _JB_X28_X29     (_JB_X30_SP  + 2)
+#define _JB_X26_X27     (_JB_X28_X29 + 2)
+#define _JB_X24_X25     (_JB_X26_X27 + 2)
+#define _JB_X22_X23     (_JB_X24_X25 + 2)
+#define _JB_X20_X21     (_JB_X22_X23 + 2)
+#define _JB_X19         (_JB_X20_X21 + 2)
+#define _JB_D14_D15     (_JB_X19 + 1)
+#define _JB_D12_D13     (_JB_D14_D15 + 2)
+#define _JB_D10_D11     (_JB_D12_D13 + 1)
+#define _JB_D8_D9       (_JB_D10_D11 + 1)
 
 ENTRY(setjmp)
-    /* block all signals an retrieve signal mask */
-    stp     x0, x30, [sp, #-16]!
-
-    mov     x0, xzr
-    bl      PIC_SYM(sigblock, PLT)
-    mov     w1, w0
-
-    ldp     x0, x30, [sp], #16
-
-    /* store signal mask */
-    str     w1, [x0, #(_JB_SIGMASK *4)]
-
-    /* store magic number */
-    ldr     w9, .L_setjmp_magic
-    str     w9, [x0, #(_JB_MAGIC * 4)]
-
-    /* store core registers */
-    mov     x10, sp
-    stp     x30, x10, [x0, #(_JB_CORE_BASE * 4 + 16 * 0)]
-    stp     x28, x29, [x0, #(_JB_CORE_BASE * 4 + 16 * 1)]
-    stp     x26, x27, [x0, #(_JB_CORE_BASE * 4 + 16 * 2)]
-    stp     x24, x25, [x0, #(_JB_CORE_BASE * 4 + 16 * 3)]
-    stp     x22, x23, [x0, #(_JB_CORE_BASE * 4 + 16 * 4)]
-    stp     x20, x21, [x0, #(_JB_CORE_BASE * 4 + 16 * 5)]
-    str     x19,      [x0, #(_JB_CORE_BASE * 4 + 16 * 6)]
-
-    /* store floating point registers */
-    stp     d14, d15, [x0, #(_JB_FLOAT_BASE * 4 + 16 * 0)]
-    stp     d12, d13, [x0, #(_JB_FLOAT_BASE * 4 + 16 * 1)]
-    stp     d10, d11, [x0, #(_JB_FLOAT_BASE * 4 + 16 * 2)]
-    stp     d8,  d9,  [x0, #(_JB_FLOAT_BASE * 4 + 16 * 3)]
-
-    mov     w0, wzr
-    ret
+  mov w1, #1
+  b sigsetjmp
 END(setjmp)
 
-.L_setjmp_magic:
-    .word   _JB_MAGIC__SETJMP
+ENTRY(_setjmp)
+  mov w1, #0
+  b sigsetjmp
+END(_setjmp)
 
-ENTRY(longjmp)
-    /* check magic */
-    ldr     w9, .L_setjmp_magic
-    ldr     w10, [x0, #(_JB_MAGIC * 4)]
-    cmp     w9, w10
-    b.ne    .L_fail
+// int sigsetjmp(sigjmp_buf env, int save_signal_mask);
+ENTRY(sigsetjmp)
+  // Record whether or not we're saving the signal mask.
+  str w1, [x0, #(_JB_SIGFLAG * 8)]
 
-    /* restore core registers */
-    ldp     x30, x10, [x0, #(_JB_CORE_BASE * 4 + 16 * 0)]
+  // Do we need to save the signal mask?
+  cbz w1, 1f
+
+  // Save current signal mask.
+  stp x0, x30, [sp, #-16]!
+  // The 'how' argument is ignored if new_mask is NULL.
+  mov x1, #0 // NULL.
+  add x2, x0, #(_JB_SIGMASK * 8) // old_mask.
+  bl sigprocmask
+  ldp x0, x30, [sp], #16
+
+1:
+  // Save core registers.
+  mov x10, sp
+  stp x30, x10, [x0, #(_JB_X30_SP  * 8)]
+  stp x28, x29, [x0, #(_JB_X28_X29 * 8)]
+  stp x26, x27, [x0, #(_JB_X26_X27 * 8)]
+  stp x24, x25, [x0, #(_JB_X24_X25 * 8)]
+  stp x22, x23, [x0, #(_JB_X22_X23 * 8)]
+  stp x20, x21, [x0, #(_JB_X20_X21 * 8)]
+  str x19,      [x0, #(_JB_X19     * 8)]
+
+  // Save floating point registers.
+  stp d14, d15, [x0, #(_JB_D14_D15 * 8)]
+  stp d12, d13, [x0, #(_JB_D12_D13 * 8)]
+  stp d10, d11, [x0, #(_JB_D10_D11 * 8)]
+  stp d8,  d9,  [x0, #(_JB_D8_D9   * 8)]
+
+  mov w0, #0
+  ret
+END(sigsetjmp)
+
+// void siglongjmp(sigjmp_buf env, int value);
+ENTRY(siglongjmp)
+  // Do we need to restore the signal mask?
+  ldr w9, [x0, #(_JB_SIGFLAG * 8)]
+  cbz w9, 1f
+
+  // Restore signal mask.
+  stp x0, x30, [sp, #-16]!
+  mov x19, x1 // Save 'value'.
+  mov x2, x0
+  mov x0, #2 // SIG_SETMASK
+  add x1, x2, #(_JB_SIGMASK * 8) // new_mask.
+  mov x2, #0 // NULL.
+  bl sigprocmask
+  mov x1, x19 // Restore 'value'.
+  ldp x0, x30, [sp], #16
+
+1:
+  // Restore core registers.
+  ldp x30, x10, [x0, #(_JB_X30_SP  * 8)]
   mov sp, x10
-    ldp     x28, x29, [x0, #(_JB_CORE_BASE * 4 + 16 * 1)]
-    ldp     x26, x27, [x0, #(_JB_CORE_BASE * 4 + 16 * 2)]
-    ldp     x24, x25, [x0, #(_JB_CORE_BASE * 4 + 16 * 3)]
-    ldp     x22, x23, [x0, #(_JB_CORE_BASE * 4 + 16 * 4)]
-    ldp     x20, x21, [x0, #(_JB_CORE_BASE * 4 + 16 * 5)]
-    ldr     x19,      [x0, #(_JB_CORE_BASE * 4 + 16 * 6)]
+  ldp x28, x29, [x0, #(_JB_X28_X29 * 8)]
+  ldp x26, x27, [x0, #(_JB_X26_X27 * 8)]
+  ldp x24, x25, [x0, #(_JB_X24_X25 * 8)]
+  ldp x22, x23, [x0, #(_JB_X22_X23 * 8)]
+  ldp x20, x21, [x0, #(_JB_X20_X21 * 8)]
+  ldr x19,      [x0, #(_JB_X19     * 8)]
 
-    /* restore floating point registers */
-    ldp     d14, d15, [x0, #(_JB_FLOAT_BASE * 4 + 16 * 0)]
-    ldp     d12, d13, [x0, #(_JB_FLOAT_BASE * 4 + 16 * 1)]
-    ldp     d10, d11, [x0, #(_JB_FLOAT_BASE * 4 + 16 * 2)]
-    ldp     d8,  d9,  [x0, #(_JB_FLOAT_BASE * 4 + 16 * 3)]
+  // Restore floating point registers.
+  ldp d14, d15, [x0, #(_JB_D14_D15 * 8)]
+  ldp d12, d13, [x0, #(_JB_D12_D13 * 8)]
+  ldp d10, d11, [x0, #(_JB_D10_D11 * 8)]
+  ldp d8,  d9,  [x0, #(_JB_D8_D9   * 8)]
 
-    /* validate sp (sp mod 16 = 0) and lr (lr mod 4 = 0) */
+  // Validate sp (sp mod 16 = 0) and lr (lr mod 4 = 0).
   tst x30, #3
-    b.ne    .L_fail
+  b.ne longjmperror
   mov x10, sp
   tst x10, #15
-    b.ne    .L_fail
+  b.ne longjmperror
 
-    /* set return value */
+  // Set return value.
   cmp w1, wzr
   csinc w0, w1, wzr, ne
   ret
+END(siglongjmp)
 
-    /* validation failed, die die die */
-.L_fail:
-    bl      PIC_SYM(longjmperror, PLT)
-    bl      PIC_SYM(abort, PLT)
-    b       . - 8       /* Cannot get here */
-END(longjmp)
+  .globl longjmp
+  .equ longjmp, siglongjmp
+  .globl _longjmp
+  .equ _longjmp, siglongjmp

libc/arch-arm64/bionic/sigsetjmp.S

@@ -1,51 +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 <machine/setjmp.h>
-
-/*
- * int sigsetjmp(sigjmp_buf env, int savesigs);
- * void siglongjmp(sigjmp_buf env, int val);
- */
-
-ENTRY(sigsetjmp)
-    cbz     w1, PIC_SYM(_setjmp, PLT)
-    b       PIC_SYM(setjmp, PLT)
-END(sigsetjmp)
-
-.L_setjmp_magic:
-    .word   _JB_MAGIC__SETJMP
-
-ENTRY(siglongjmp)
-    ldr     w2, .L_setjmp_magic
-    ldr     w3, [x0]
-    cmp     w2, w3
-    b.eq    PIC_SYM(_longjmp, PLT)
-    b       PIC_SYM(longjmp, PLT)
-END(siglongjmp)

libc/arch-arm64/denver64/bionic/memcpy.S

@@ -1,205 +1,63 @@
-/* Copyright (c) 2012, Linaro Limited
-   All rights reserved.
-   Copyright (c) 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.
-       * Neither the name of the Linaro 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 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
-   HOLDER 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) 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.
  */
 
-/* Assumptions:
- *
- * denver, ARMv8-a, AArch64
- * Unaligned accesses
- *
- */
+// Prototype: void *memcpy (void *dst, const void *src, size_t count).
 
 #include <private/bionic_asm.h>
+#include <private/libc_events.h>
 
-#define dstin	x0
-#define src	x1
-#define count	x2
-#define tmp1	x3
-#define tmp1w	w3
-#define tmp2	x4
-#define tmp2w	w4
-#define tmp3	x5
-#define tmp3w	w5
-#define dst	x6
+ENTRY(__memcpy_chk)
+  cmp   x2, x3
+  b.hi  __memcpy_chk_fail
 
-#define A_l	x7
-#define A_h	x8
-#define B_l	x9
-#define B_h	x10
-#define C_l	x11
-#define C_h	x12
-#define D_l	x13
-#define D_h	x14
-
-#define QA_l	q0
-#define QA_h	q1
-#define QB_l	q2
-#define QB_h	q3
+  // Fall through to memcpy...
+END(__memcpy_chk)
 
 ENTRY(memcpy)
-
-	mov	dst, dstin
-	cmp	count, #64
-	b.ge	.Lcpy_not_short
-	cmp	count, #15
-	b.le	.Ltail15tiny
-
-	/* Deal with small copies quickly by dropping straight into the
-	 * exit block.  */
-.Ltail63:
-	/* Copy up to 48 bytes of data.  At this point we only need the
-	 * bottom 6 bits of count to be accurate.  */
-	ands	tmp1, count, #0x30
-	b.eq	.Ltail15
-	add	dst, dst, tmp1
-	add	src, src, tmp1
-	cmp	tmp1w, #0x20
-	b.eq	1f
-	b.lt	2f
-	ldp	A_l, A_h, [src, #-48]
-	stp	A_l, A_h, [dst, #-48]
-1:
-	ldp	A_l, A_h, [src, #-32]
-	stp	A_l, A_h, [dst, #-32]
-2:
-	ldp	A_l, A_h, [src, #-16]
-	stp	A_l, A_h, [dst, #-16]
-
-.Ltail15:
-	ands	count, count, #15
-	beq	1f
-	add	src, src, count
-	ldp	A_l, A_h, [src, #-16]
-	add	dst, dst, count
-	stp	A_l, A_h, [dst, #-16]
-1:
-	ret
-
-.Ltail15tiny:
-	/* Copy up to 15 bytes of data.  Does not assume additional data
-	   being copied.  */
-	tbz	count, #3, 1f
-	ldr	tmp1, [src], #8
-	str	tmp1, [dst], #8
-1:
-	tbz	count, #2, 1f
-	ldr	tmp1w, [src], #4
-	str	tmp1w, [dst], #4
-1:
-	tbz	count, #1, 1f
-	ldrh	tmp1w, [src], #2
-	strh	tmp1w, [dst], #2
-1:
-	tbz	count, #0, 1f
-	ldrb	tmp1w, [src]
-	strb	tmp1w, [dst]
-1:
-	ret
-
-.Lcpy_not_short:
-	/* We don't much care about the alignment of DST, but we want SRC
-	 * to be 128-bit (16 byte) aligned so that we don't cross cache line
-	 * boundaries on both loads and stores.  */
-	neg	tmp2, src
-	ands	tmp2, tmp2, #15		/* Bytes to reach alignment.  */
-	b.eq	2f
-	sub	count, count, tmp2
-	/* Copy more data than needed; it's faster than jumping
-	 * around copying sub-Quadword quantities.  We know that
-	 * it can't overrun.  */
-	ldp	A_l, A_h, [src]
-	add	src, src, tmp2
-	stp	A_l, A_h, [dst]
-	add	dst, dst, tmp2
-	/* There may be less than 63 bytes to go now.  */
-	cmp	count, #63
-	b.le	.Ltail63
-2:
-	subs	count, count, #128
-	b.ge	.Lcpy_body_large
-	/* Less than 128 bytes to copy, so handle 64 here and then jump
-	 * to the tail.  */
-	ldp	QA_l, QA_h, [src]
-	ldp	QB_l, QB_h, [src, #32]
-	stp	QA_l, QA_h, [dst]
-	stp	QB_l, QB_h, [dst, #32]
-	tst	count, #0x3f
-	add	src, src, #64
-	add	dst, dst, #64
-	b.ne	.Ltail63
-	ret
-
-	/* Critical loop.  Start at a new cache line boundary.  Assuming
-	 * 64 bytes per line this ensures the entire loop is in one line.  */
-	.p2align 6
-.Lcpy_body_large:
-	cmp	count, 65536
-	bhi	.Lcpy_body_huge
-	/* There are at least 128 bytes to copy.  */
-	ldp	QA_l, QA_h, [src, #0]
-	sub	dst, dst, #32		/* Pre-bias.  */
-	ldp	QB_l, QB_h, [src, #32]!	/* src += 64 - Pre-bias.  */
-1:
-	stp	QA_l, QA_h, [dst, #32]
-	ldp	QA_l, QA_h, [src, #32]
-	stp	QB_l, QB_h, [dst, #64]!
-	ldp	QB_l, QB_h, [src, #64]!
-
-	subs	count, count, #64
-	b.ge	1b
-
-	stp	QA_l, QA_h, [dst, #32]
-	stp	QB_l, QB_h, [dst, #64]
-	add	src, src, #32
-	add	dst, dst, #64 + 32
-	tst	count, #0x3f
-	b.ne	.Ltail63
-	ret
-.Lcpy_body_huge:
-	/* There are at least 128 bytes to copy.  */
-	ldp	QA_l, QA_h, [src, #0]
-	sub	dst, dst, #32		/* Pre-bias.  */
-	ldp	QB_l, QB_h, [src, #32]!
-1:
-	stnp	QA_l, QA_h, [dst, #32]
-	stnp	QB_l, QB_h, [dst, #64]
-	ldp	QA_l, QA_h, [src, #32]
-	ldp	QB_l, QB_h, [src, #64]!
-	add	dst, dst, #64
-
-	subs	count, count, #64
-	b.ge	1b
-
-	stnp	QA_l, QA_h, [dst, #32]
-	stnp	QB_l, QB_h, [dst, #64]
-	add	src, src, #32
-	add	dst, dst, #64 + 32
-	tst	count, #0x3f
-	b.ne	.Ltail63
-	ret
-
+  #include "memcpy_base.S"
 END(memcpy)
+
+ENTRY_PRIVATE(__memcpy_chk_fail)
+  // Preserve for accurate backtrace.
+  stp  x29, x30, [sp, -16]!
+  .cfi_def_cfa_offset 16
+  .cfi_rel_offset x29, 0
+  .cfi_rel_offset x30, 8
+
+  adrp  x0, error_string
+  add   x0, x0, :lo12:error_string
+  ldr   x1, error_code
+  bl    __fortify_chk_fail
+error_code:
+  .word   BIONIC_EVENT_MEMCPY_BUFFER_OVERFLOW
+END(__memcpy_chk_fail)
+
+  .data
+  .align 2
+error_string:
+  .string "memcpy: prevented write past end of buffer"

libc/arch-arm64/denver64/bionic/memcpy_base.S

@@ -0,0 +1,199 @@
+/* Copyright (c) 2012, Linaro Limited
+   All rights reserved.
+   Copyright (c) 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.
+       * Neither the name of the Linaro 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 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
+   HOLDER 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.
+*/
+
+/* Assumptions:
+ *
+ * denver, ARMv8-a, AArch64
+ * Unaligned accesses
+ *
+ */
+
+#define dstin	x0
+#define src	x1
+#define count	x2
+#define tmp1	x3
+#define tmp1w	w3
+#define tmp2	x4
+#define tmp2w	w4
+#define tmp3	x5
+#define tmp3w	w5
+#define dst	x6
+
+#define A_l	x7
+#define A_h	x8
+#define B_l	x9
+#define B_h	x10
+#define C_l	x11
+#define C_h	x12
+#define D_l	x13
+#define D_h	x14
+
+#define QA_l	q0
+#define QA_h	q1
+#define QB_l	q2
+#define QB_h	q3
+
+	mov	dst, dstin
+	cmp	count, #64
+	b.ge	.Lcpy_not_short
+	cmp	count, #15
+	b.le	.Ltail15tiny
+
+	/* Deal with small copies quickly by dropping straight into the
+	 * exit block.  */
+.Ltail63:
+	/* Copy up to 48 bytes of data.  At this point we only need the
+	 * bottom 6 bits of count to be accurate.  */
+	ands	tmp1, count, #0x30
+	b.eq	.Ltail15
+	add	dst, dst, tmp1
+	add	src, src, tmp1
+	cmp	tmp1w, #0x20
+	b.eq	1f
+	b.lt	2f
+	ldp	A_l, A_h, [src, #-48]
+	stp	A_l, A_h, [dst, #-48]
+1:
+	ldp	A_l, A_h, [src, #-32]
+	stp	A_l, A_h, [dst, #-32]
+2:
+	ldp	A_l, A_h, [src, #-16]
+	stp	A_l, A_h, [dst, #-16]
+
+.Ltail15:
+	ands	count, count, #15
+	beq	1f
+	add	src, src, count
+	ldp	A_l, A_h, [src, #-16]
+	add	dst, dst, count
+	stp	A_l, A_h, [dst, #-16]
+1:
+	ret
+
+.Ltail15tiny:
+	/* Copy up to 15 bytes of data.  Does not assume additional data
+	   being copied.  */
+	tbz	count, #3, 1f
+	ldr	tmp1, [src], #8
+	str	tmp1, [dst], #8
+1:
+	tbz	count, #2, 1f
+	ldr	tmp1w, [src], #4
+	str	tmp1w, [dst], #4
+1:
+	tbz	count, #1, 1f
+	ldrh	tmp1w, [src], #2
+	strh	tmp1w, [dst], #2
+1:
+	tbz	count, #0, 1f
+	ldrb	tmp1w, [src]
+	strb	tmp1w, [dst]
+1:
+	ret
+
+.Lcpy_not_short:
+	/* We don't much care about the alignment of DST, but we want SRC
+	 * to be 128-bit (16 byte) aligned so that we don't cross cache line
+	 * boundaries on both loads and stores.  */
+	neg	tmp2, src
+	ands	tmp2, tmp2, #15		/* Bytes to reach alignment.  */
+	b.eq	2f
+	sub	count, count, tmp2
+	/* Copy more data than needed; it's faster than jumping
+	 * around copying sub-Quadword quantities.  We know that
+	 * it can't overrun.  */
+	ldp	A_l, A_h, [src]
+	add	src, src, tmp2
+	stp	A_l, A_h, [dst]
+	add	dst, dst, tmp2
+	/* There may be less than 63 bytes to go now.  */
+	cmp	count, #63
+	b.le	.Ltail63
+2:
+	subs	count, count, #128
+	b.ge	.Lcpy_body_large
+	/* Less than 128 bytes to copy, so handle 64 here and then jump
+	 * to the tail.  */
+	ldp	QA_l, QA_h, [src]
+	ldp	QB_l, QB_h, [src, #32]
+	stp	QA_l, QA_h, [dst]
+	stp	QB_l, QB_h, [dst, #32]
+	tst	count, #0x3f
+	add	src, src, #64
+	add	dst, dst, #64
+	b.ne	.Ltail63
+	ret
+
+	/* Critical loop.  Start at a new cache line boundary.  Assuming
+	 * 64 bytes per line this ensures the entire loop is in one line.  */
+	.p2align 6
+.Lcpy_body_large:
+	cmp	count, 65536
+	bhi	.Lcpy_body_huge
+	/* There are at least 128 bytes to copy.  */
+	ldp	QA_l, QA_h, [src, #0]
+	sub	dst, dst, #32		/* Pre-bias.  */
+	ldp	QB_l, QB_h, [src, #32]!	/* src += 64 - Pre-bias.  */
+1:
+	stp	QA_l, QA_h, [dst, #32]
+	ldp	QA_l, QA_h, [src, #32]
+	stp	QB_l, QB_h, [dst, #64]!
+	ldp	QB_l, QB_h, [src, #64]!
+
+	subs	count, count, #64
+	b.ge	1b
+
+	stp	QA_l, QA_h, [dst, #32]
+	stp	QB_l, QB_h, [dst, #64]
+	add	src, src, #32
+	add	dst, dst, #64 + 32
+	tst	count, #0x3f
+	b.ne	.Ltail63
+	ret
+.Lcpy_body_huge:
+	/* There are at least 128 bytes to copy.  */
+	ldp	QA_l, QA_h, [src, #0]
+	sub	dst, dst, #32		/* Pre-bias.  */
+	ldp	QB_l, QB_h, [src, #32]!
+1:
+	stnp	QA_l, QA_h, [dst, #32]
+	stnp	QB_l, QB_h, [dst, #64]
+	ldp	QA_l, QA_h, [src, #32]
+	ldp	QB_l, QB_h, [src, #64]!
+	add	dst, dst, #64
+
+	subs	count, count, #64
+	b.ge	1b
+
+	stnp	QA_l, QA_h, [dst, #32]
+	stnp	QB_l, QB_h, [dst, #64]
+	add	src, src, #32
+	add	dst, dst, #64 + 32
+	tst	count, #0x3f
+	b.ne	.Ltail63
+	ret

libc/arch-arm64/generic-neon/generic-neon.mk

@@ -1,13 +0,0 @@
-libc_bionic_src_files_arm64 += \
-    arch-arm64/generic/bionic/memchr.S \
-    arch-arm64/generic/bionic/memcmp.S \
-    arch-arm64/generic/bionic/memmove.S \
-    arch-arm64/generic/bionic/memset.S \
-    arch-arm64/generic/bionic/stpcpy.S \
-    arch-arm64/generic/bionic/strchr.S \
-    arch-arm64/generic/bionic/strcmp.S \
-    arch-arm64/generic/bionic/strcpy.S \
-    arch-arm64/generic/bionic/strlen.S \
-    arch-arm64/generic/bionic/strncmp.S \
-    arch-arm64/generic/bionic/strnlen.S \
-    arch-arm64/generic-neon/bionic/memcpy.S \

libc/arch-arm64/generic/bionic/memcpy.S

@@ -1,184 +1,63 @@
-/* Copyright (c) 2012, Linaro Limited
-   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.
-       * Neither the name of the Linaro 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 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
-   HOLDER 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) 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.
  */
 
-/* Assumptions:
- *
- * ARMv8-a, AArch64
- * Unaligned accesses
- *
- */
+// Prototype: void *memcpy (void *dst, const void *src, size_t count).
 
 #include <private/bionic_asm.h>
+#include <private/libc_events.h>
 
-#define dstin	x0
-#define src	x1
-#define count	x2
-#define tmp1	x3
-#define tmp1w	w3
-#define tmp2	x4
-#define tmp2w	w4
-#define tmp3	x5
-#define tmp3w	w5
-#define dst	x6
+ENTRY(__memcpy_chk)
+  cmp   x2, x3
+  b.hi  __memcpy_chk_fail
 
-#define A_l	x7
-#define A_h	x8
-#define B_l	x9
-#define B_h	x10
-#define C_l	x11
-#define C_h	x12
-#define D_l	x13
-#define D_h	x14
+  // Fall through to memcpy...
+END(__memcpy_chk)
 
 ENTRY(memcpy)
-
-	mov	dst, dstin
-	cmp	count, #64
-	b.ge	.Lcpy_not_short
-	cmp	count, #15
-	b.le	.Ltail15tiny
-
-	/* Deal with small copies quickly by dropping straight into the
-	 * exit block.  */
-.Ltail63:
-	/* Copy up to 48 bytes of data.  At this point we only need the
-	 * bottom 6 bits of count to be accurate.  */
-	ands	tmp1, count, #0x30
-	b.eq	.Ltail15
-	add	dst, dst, tmp1
-	add	src, src, tmp1
-	cmp	tmp1w, #0x20
-	b.eq	1f
-	b.lt	2f
-	ldp	A_l, A_h, [src, #-48]
-	stp	A_l, A_h, [dst, #-48]
-1:
-	ldp	A_l, A_h, [src, #-32]
-	stp	A_l, A_h, [dst, #-32]
-2:
-	ldp	A_l, A_h, [src, #-16]
-	stp	A_l, A_h, [dst, #-16]
-
-.Ltail15:
-	ands	count, count, #15
-	beq	1f
-	add	src, src, count
-	ldp	A_l, A_h, [src, #-16]
-	add	dst, dst, count
-	stp	A_l, A_h, [dst, #-16]
-1:
-	ret
-
-.Ltail15tiny:
-	/* Copy up to 15 bytes of data.  Does not assume additional data
-	   being copied.  */
-	tbz	count, #3, 1f
-	ldr	tmp1, [src], #8
-	str	tmp1, [dst], #8
-1:
-	tbz	count, #2, 1f
-	ldr	tmp1w, [src], #4
-	str	tmp1w, [dst], #4
-1:
-	tbz	count, #1, 1f
-	ldrh	tmp1w, [src], #2
-	strh	tmp1w, [dst], #2
-1:
-	tbz	count, #0, 1f
-	ldrb	tmp1w, [src]
-	strb	tmp1w, [dst]
-1:
-	ret
-
-.Lcpy_not_short:
-	/* We don't much care about the alignment of DST, but we want SRC
-	 * to be 128-bit (16 byte) aligned so that we don't cross cache line
-	 * boundaries on both loads and stores.  */
-	neg	tmp2, src
-	ands	tmp2, tmp2, #15		/* Bytes to reach alignment.  */
-	b.eq	2f
-	sub	count, count, tmp2
-	/* Copy more data than needed; it's faster than jumping
-	 * around copying sub-Quadword quantities.  We know that
-	 * it can't overrun.  */
-	ldp	A_l, A_h, [src]
-	add	src, src, tmp2
-	stp	A_l, A_h, [dst]
-	add	dst, dst, tmp2
-	/* There may be less than 63 bytes to go now.  */
-	cmp	count, #63
-	b.le	.Ltail63
-2:
-	subs	count, count, #128
-	b.ge	.Lcpy_body_large
-	/* Less than 128 bytes to copy, so handle 64 here and then jump
-	 * to the tail.  */
-	ldp	A_l, A_h, [src]
-	ldp	B_l, B_h, [src, #16]
-	ldp	C_l, C_h, [src, #32]
-	ldp	D_l, D_h, [src, #48]
-	stp	A_l, A_h, [dst]
-	stp	B_l, B_h, [dst, #16]
-	stp	C_l, C_h, [dst, #32]
-	stp	D_l, D_h, [dst, #48]
-	tst	count, #0x3f
-	add	src, src, #64
-	add	dst, dst, #64
-	b.ne	.Ltail63
-	ret
-
-	/* Critical loop.  Start at a new cache line boundary.  Assuming
-	 * 64 bytes per line this ensures the entire loop is in one line.  */
-	.p2align 6
-.Lcpy_body_large:
-	/* There are at least 128 bytes to copy.  */
-	ldp	A_l, A_h, [src, #0]
-	sub	dst, dst, #16		/* Pre-bias.  */
-	ldp	B_l, B_h, [src, #16]
-	ldp	C_l, C_h, [src, #32]
-	ldp	D_l, D_h, [src, #48]!	/* src += 64 - Pre-bias.  */
-1:
-	stp	A_l, A_h, [dst, #16]
-	ldp	A_l, A_h, [src, #16]
-	stp	B_l, B_h, [dst, #32]
-	ldp	B_l, B_h, [src, #32]
-	stp	C_l, C_h, [dst, #48]
-	ldp	C_l, C_h, [src, #48]
-	stp	D_l, D_h, [dst, #64]!
-	ldp	D_l, D_h, [src, #64]!
-	subs	count, count, #64
-	b.ge	1b
-	stp	A_l, A_h, [dst, #16]
-	stp	B_l, B_h, [dst, #32]
-	stp	C_l, C_h, [dst, #48]
-	stp	D_l, D_h, [dst, #64]
-	add	src, src, #16
-	add	dst, dst, #64 + 16
-	tst	count, #0x3f
-	b.ne	.Ltail63
-	ret
+  #include "memcpy_base.S"
 END(memcpy)
+
+ENTRY_PRIVATE(__memcpy_chk_fail)
+  // Preserve for accurate backtrace.
+  stp  x29, x30, [sp, -16]!
+  .cfi_def_cfa_offset 16
+  .cfi_rel_offset x29, 0
+  .cfi_rel_offset x30, 8
+
+  adrp  x0, error_string
+  add   x0, x0, :lo12:error_string
+  ldr   x1, error_code
+  bl    __fortify_chk_fail
+error_code:
+  .word   BIONIC_EVENT_MEMCPY_BUFFER_OVERFLOW
+END(__memcpy_chk_fail)
+
+  .data
+  .align 2
+error_string:
+  .string "memcpy: prevented write past end of buffer"

libc/arch-arm64/generic/bionic/memcpy_base.S

@@ -32,8 +32,6 @@
  *
  */
 
-#include <private/bionic_asm.h>
-
 #define dstin	x0
 #define src	x1
 #define count	x2
@@ -54,13 +52,6 @@
 #define D_l	x13
 #define D_h	x14
 
-#define QA_l q0
-#define QA_h q1
-#define QB_l q2
-#define QB_h q3
-
-ENTRY(memcpy)
-
 	mov	dst, dstin
 	cmp	count, #64
 	b.ge	.Lcpy_not_short
@@ -142,10 +133,14 @@ ENTRY(memcpy)
 	b.ge	.Lcpy_body_large
 	/* Less than 128 bytes to copy, so handle 64 here and then jump
 	 * to the tail.  */
-	ldp QA_l, QA_h, [src]
-	ldp QB_l, QB_h, [src, #32]
-	stp QA_l, QA_h, [dst]
-	stp QB_l, QB_h, [dst, #32]
+	ldp	A_l, A_h, [src]
+	ldp	B_l, B_h, [src, #16]
+	ldp	C_l, C_h, [src, #32]
+	ldp	D_l, D_h, [src, #48]
+	stp	A_l, A_h, [dst]
+	stp	B_l, B_h, [dst, #16]
+	stp	C_l, C_h, [dst, #32]
+	stp	D_l, D_h, [dst, #48]
 	tst	count, #0x3f
 	add	src, src, #64
 	add	dst, dst, #64
@@ -157,23 +152,28 @@ ENTRY(memcpy)
 	.p2align 6
 .Lcpy_body_large:
 	/* There are at least 128 bytes to copy.  */
-	ldp QA_l, QA_h, [src, #0]
-	sub	dst, dst, #32		/* Pre-bias.  */
-	ldp QB_l, QB_h, [src, #32]!	/* src += 64 - Pre-bias.  */
+	ldp	A_l, A_h, [src, #0]
+	sub	dst, dst, #16		/* Pre-bias.  */
+	ldp	B_l, B_h, [src, #16]
+	ldp	C_l, C_h, [src, #32]
+	ldp	D_l, D_h, [src, #48]!	/* src += 64 - Pre-bias.  */
 1:
-	stp QA_l, QA_h, [dst, #32]
-	ldp QA_l, QA_h, [src, #32]
-	stp QB_l, QB_h, [dst, #64]!
-	ldp QB_l, QB_h, [src, #64]!
-
+	stp	A_l, A_h, [dst, #16]
+	ldp	A_l, A_h, [src, #16]
+	stp	B_l, B_h, [dst, #32]
+	ldp	B_l, B_h, [src, #32]
+	stp	C_l, C_h, [dst, #48]
+	ldp	C_l, C_h, [src, #48]
+	stp	D_l, D_h, [dst, #64]!
+	ldp	D_l, D_h, [src, #64]!
 	subs	count, count, #64
 	b.ge	1b
-
-	stp QA_l, QA_h, [dst, #32]
-	stp QB_l, QB_h, [dst, #64]
-	add	src, src, #32
-	add	dst, dst, #64 + 32
+	stp	A_l, A_h, [dst, #16]
+	stp	B_l, B_h, [dst, #32]
+	stp	C_l, C_h, [dst, #48]
+	stp	D_l, D_h, [dst, #64]
+	add	src, src, #16
+	add	dst, dst, #64 + 16
 	tst	count, #0x3f
 	b.ne	.Ltail63
 	ret
-END(memcpy)

libc/arch-arm64/include/machine/asm.h

@@ -38,17 +38,9 @@
 #ifndef _AARCH64_ASM_H_
 #define _AARCH64_ASM_H_
 
-#ifndef _ALIGN_TEXT
-# define _ALIGN_TEXT .align 0
-#endif
+#define __bionic_asm_align 0
 
 #undef __bionic_asm_function_type
 #define __bionic_asm_function_type %function
 
-#if defined(__ELF__) && defined(PIC)
-#define PIC_SYM(x,y) x ## ( ## y ## )
-#else
-#define PIC_SYM(x,y) x
-#endif
-
 #endif /* _AARCH64_ASM_H_ */

libc/arch-arm64/include/machine/elf_machdep.h

@@ -99,6 +99,7 @@
 #define R_AARCH64_RELATIVE              1027    /* Adjust by program base.  */
 #define R_AARCH64_TLS_TPREL64           1030
 #define R_AARCH64_TLS_DTPREL32          1031
+#define R_AARCH64_IRELATIVE             1032
 
 #define R_TYPE(name)        __CONCAT(R_AARCH64_,name)
 

libc/arch-arm64/include/machine/endian.h

@@ -1,58 +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.
- */
-
-#ifndef _AARCH64_ENDIAN_H_
-#define _AARCH64_ENDIAN_H_
-
-#include <sys/types.h>
-#include <sys/endian.h>
-
-#ifdef __GNUC__
-
-#define __swap16md(x) ({                                        \
-    register u_int16_t _x = (x);                                \
-    __asm volatile ("rev16 %0, %0" : "+r" (_x));                \
-    _x;                                                         \
-})
-
-/* Use GCC builtins */
-#define __swap32md(x) __builtin_bswap32(x)
-#define __swap64md(x) __builtin_bswap64(x)
-
-/* Tell sys/endian.h we have MD variants of the swap macros.  */
-#define MD_SWAP
-
-#endif  /* __GNUC__ */
-
-#if defined(__AARCH64EB__)
-#define _BYTE_ORDER _BIG_ENDIAN
-#else
-#define _BYTE_ORDER _LITTLE_ENDIAN
-#endif
-
-#endif /* _AARCH64_ENDIAN_H_ */

libc/arch-arm64/include/machine/exec.h

@@ -1,50 +0,0 @@
-/*	$OpenBSD: exec.h,v 1.9 2003/04/17 03:42:14 drahn Exp $	*/
-/*	$NetBSD: exec.h,v 1.6 1994/10/27 04:16:05 cgd Exp $	*/
-
-/*
- * Copyright (c) 1993 Christopher G. Demetriou
- * 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 author may not 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 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 _AARCH64_EXEC_H_
-#define _AARCH64_EXEC_H_
-
-#define	__LDPGSZ		4096
-
-#define	NATIVE_EXEC_ELF
-
-#define	ARCH_ELFSIZE		64
-
-#define	ELF_TARG_CLASS		ELFCLASS64		/* 64-bit objects */
-#define	ELF_TARG_DATA		ELFDATA2LSB
-#define	ELF_TARG_MACH		EM_AARCH64
-
-#define	_NLIST_DO_AOUT
-#define	_NLIST_DO_ELF
-
-#define	_KERN_DO_AOUT
-#define	_KERN_DO_ELF64
-
-#endif  /* _AARCH64_EXEC_H_ */

libc/arch-arm64/include/machine/setjmp.h

@@ -26,48 +26,5 @@
  * SUCH DAMAGE.
  */
 
-/*
- * machine/setjmp.h: machine dependent setjmp-related information.
- */
-
 /* _JBLEN is the size of a jmp_buf in longs (64bit on AArch64) */
 #define _JBLEN 32
-
-/* According to AARCH64 PCS document we need to save the following
- * registers:
- *
- * Core     x19 - x30, sp (see section 5.1.1)
- * VFP      d8 - d15 (see section 5.1.2)
- *
- * NOTE: All the registers saved here will have 64bit vales (except FPSR).
- *       AAPCS mandates that the higher part of q registers does not need to
- *       be saveved by the callee.
- */
-
-/* The structure of jmp_buf for AArch64:
- *
- * NOTE: _JBLEN is the size of jmp_buf in longs(64bit on AArch64)! The table
- *      below computes the offsets in words(32bit).
- *
- *  word        name            description
- *  0       magic           magic number
- *  1       sigmask         signal mask (not used with _setjmp / _longjmp)
- *  2       core_base       base of core registers (x19-x30, sp)
- *  28      float_base      base of float registers (d8-d15)
- *  44      reserved        reserved entries (room to grow)
- *  64
- *
- *
- *  NOTE: The instructions that load/store core/vfp registers expect 8-byte
- *        alignment. Contrary to the previous setjmp header for ARM we do not
- *        need to save status/control registers for VFP (it is not a
- *        requirement for setjmp).
- */
-
-#define _JB_MAGIC       0
-#define _JB_SIGMASK     (_JB_MAGIC+1)
-#define _JB_CORE_BASE   (_JB_SIGMASK+1)
-#define _JB_FLOAT_BASE  (_JB_CORE_BASE + (31-19+1)*2)
-
-#define _JB_MAGIC__SETJMP   0x53657200
-#define _JB_MAGIC_SETJMP    0x53657201

libc/arch-arm64/syscalls/__clock_nanosleep.S

@@ -2,7 +2,7 @@
 
 #include <private/bionic_asm.h>
 
-ENTRY(clock_nanosleep)
+ENTRY(__clock_nanosleep)
     mov     x8, __NR_clock_nanosleep
     svc     #0
 
@@ -11,4 +11,5 @@ ENTRY(clock_nanosleep)
     b.hi    __set_errno_internal
 
     ret
-END(clock_nanosleep)
+END(__clock_nanosleep)
+.hidden __clock_nanosleep

libc/arch-arm64/syscalls/__rt_sigqueueinfo.S

@@ -0,0 +1,15 @@
+/* Generated by gensyscalls.py. Do not edit. */
+
+#include <private/bionic_asm.h>
+
+ENTRY(__rt_sigqueueinfo)
+    mov     x8, __NR_rt_sigqueueinfo
+    svc     #0
+
+    cmn     x0, #(MAX_ERRNO + 1)
+    cneg    x0, x0, hi
+    b.hi    __set_errno_internal
+
+    ret
+END(__rt_sigqueueinfo)
+.hidden __rt_sigqueueinfo

libc/arch-arm64/syscalls/sethostname.S

@@ -0,0 +1,14 @@
+/* Generated by gensyscalls.py. Do not edit. */
+
+#include <private/bionic_asm.h>
+
+ENTRY(sethostname)
+    mov     x8, __NR_sethostname
+    svc     #0
+
+    cmn     x0, #(MAX_ERRNO + 1)
+    cneg    x0, x0, hi
+    b.hi    __set_errno_internal
+
+    ret
+END(sethostname)

libc/arch-mips/bionic/_setjmp.S

@@ -1,150 +0,0 @@
-/*	$OpenBSD: _setjmp.S,v 1.4 2005/08/07 16:40:15 espie Exp $ */
-
-/*
- * Copyright (c) 2002 Opsycon AB  (www.opsycon.se / www.opsycon.com)
- *
- * 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 Opsycon AB 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 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 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 <machine/regnum.h>
-#include <machine/signal.h>
-
-/*
- * _setjmp, _longjmp (not restoring signal state)
- *
- * XXX FPSET should probably be taken from SR setting. hmmm...
- *  GPOFF and FRAMESIZE must be the same for both _setjmp and _longjmp!
- *
- */
-
-FRAMESZ= MKFSIZ(0,4)
-GPOFF= FRAMESZ-2*REGSZ
-
-LEAF(_setjmp, FRAMESZ)
-	PTR_SUBU sp, FRAMESZ
-	SETUP_GP64(GPOFF, _setjmp)
-	SAVE_GP(GPOFF)
-	.set	noreorder
-#if defined(__mips64)
-	dli	v0, 0xACEDBADE			# sigcontext magic number
-#else
-	li	v0, 0xACEDBADE			# sigcontext magic number
-#endif
-	REG_S	v0, SC_REGS+ZERO*REGSZ(a0)
-	REG_S	s0, SC_REGS+S0*REGSZ(a0)
-	REG_S	s1, SC_REGS+S1*REGSZ(a0)
-	REG_S	s2, SC_REGS+S2*REGSZ(a0)
-	REG_S	s3, SC_REGS+S3*REGSZ(a0)
-	REG_S	s4, SC_REGS+S4*REGSZ(a0)
-	REG_S	s5, SC_REGS+S5*REGSZ(a0)
-	REG_S	s6, SC_REGS+S6*REGSZ(a0)
-	REG_S	s7, SC_REGS+S7*REGSZ(a0)
-	REG_S	s8, SC_REGS+S8*REGSZ(a0)
-	REG_L	v0, GPOFF(sp)
-	REG_S	v0, SC_REGS+GP*REGSZ(a0)
-	PTR_ADDU v0, sp, FRAMESZ
-	REG_S	v0, SC_REGS+SP*REGSZ(a0)
-	REG_S	ra, SC_PC(a0)
-
-#if !defined(SOFTFLOAT)
-	li	v0, 1				# be nice if we could tell
-	REG_S	v0, SC_FPUSED(a0)		# sc_fpused = 1
-	cfc1	v0, $31
-	s.d	$f20, SC_FPREGS+((F20-F0)*REGSZ_FP)(a0)
-	s.d	$f22, SC_FPREGS+((F22-F0)*REGSZ_FP)(a0)
-	s.d	$f24, SC_FPREGS+((F24-F0)*REGSZ_FP)(a0)
-	s.d	$f26, SC_FPREGS+((F26-F0)*REGSZ_FP)(a0)
-	s.d	$f28, SC_FPREGS+((F28-F0)*REGSZ_FP)(a0)
-	s.d	$f30, SC_FPREGS+((F30-F0)*REGSZ_FP)(a0)
-#if _MIPS_FPSET == 32
-	s.d	$f21, SC_FPREGS+((F21-F0)*REGSZ_FP)(a0)
-	s.d	$f23, SC_FPREGS+((F23-F0)*REGSZ_FP)(a0)
-	s.d	$f25, SC_FPREGS+((F25-F0)*REGSZ_FP)(a0)
-	s.d	$f27, SC_FPREGS+((F27-F0)*REGSZ_FP)(a0)
-	s.d	$f29, SC_FPREGS+((F29-F0)*REGSZ_FP)(a0)
-	s.d	$f31, SC_FPREGS+((F31-F0)*REGSZ_FP)(a0)
-#endif
-	REG_S	v0, SC_FPREGS+((FSR-F0)*REGSZ)(a0)
-#endif /* !SOFTFLOAT */
-	RESTORE_GP64
-	PTR_ADDU sp, FRAMESZ
-	j	ra
-	 move	v0, zero
-END(_setjmp)
-
-LEAF(_longjmp, FRAMESZ)
-	PTR_SUBU sp, FRAMESZ
-	SETUP_GP64(GPOFF, _longjmp)
-	SAVE_GP(GPOFF)
-	.set    noreorder
-	REG_L	v0, SC_REGS+ZERO*REGSZ(a0)
-	bne	v0, 0xACEDBADE, botch		# jump if error
-	REG_L	ra, SC_PC(a0)
-	REG_L	v0, SC_FPREGS+((FSR-F0)*REGSZ)(a0)
-	REG_L	s0, SC_REGS+S0*REGSZ(a0)
-	REG_L	s1, SC_REGS+S1*REGSZ(a0)
-	REG_L	s2, SC_REGS+S2*REGSZ(a0)
-	REG_L	s3, SC_REGS+S3*REGSZ(a0)
-	REG_L	s4, SC_REGS+S4*REGSZ(a0)
-	REG_L	s5, SC_REGS+S5*REGSZ(a0)
-	REG_L	s6, SC_REGS+S6*REGSZ(a0)
-	REG_L	s7, SC_REGS+S7*REGSZ(a0)
-	REG_L	s8, SC_REGS+S8*REGSZ(a0)
-	REG_L	gp, SC_REGS+GP*REGSZ(a0)
-	REG_L	sp, SC_REGS+SP*REGSZ(a0)
-#if !defined(SOFTFLOAT)
-	ctc1	v0, $31
-	l.d	$f20, SC_FPREGS+((F20-F0)*REGSZ_FP)(a0)
-	l.d	$f22, SC_FPREGS+((F22-F0)*REGSZ_FP)(a0)
-	l.d	$f24, SC_FPREGS+((F24-F0)*REGSZ_FP)(a0)
-	l.d	$f26, SC_FPREGS+((F26-F0)*REGSZ_FP)(a0)
-	l.d	$f28, SC_FPREGS+((F28-F0)*REGSZ_FP)(a0)
-	l.d	$f30, SC_FPREGS+((F30-F0)*REGSZ_FP)(a0)
-#if _MIPS_FPSET == 32
-	l.d	$f21, SC_FPREGS+((F21-F0)*REGSZ_FP)(a0)
-	l.d	$f23, SC_FPREGS+((F23-F0)*REGSZ_FP)(a0)
-	l.d	$f25, SC_FPREGS+((F25-F0)*REGSZ_FP)(a0)
-	l.d	$f27, SC_FPREGS+((F27-F0)*REGSZ_FP)(a0)
-	l.d	$f29, SC_FPREGS+((F29-F0)*REGSZ_FP)(a0)
-	l.d	$f31, SC_FPREGS+((F31-F0)*REGSZ_FP)(a0)
-#endif
-#endif /* !SOFTFLOAT */
-	bne	a1, zero, 1f
-	 nop
-	li	a1, 1			# never return 0!
-1:
-	j	ra
-	 move	v0, a1
-
-botch:
-	jal	longjmperror
-	nop
-	jal	abort
-	nop
-	RESTORE_GP64
-	PTR_ADDU sp, FRAMESZ
-END(_longjmp)

libc/arch-mips/bionic/atexit.h

@@ -1,36 +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.
- */
-
-extern void *__dso_handle;
-extern int __cxa_atexit(void (*func)(void *), void *arg, void *dso);
-
-__attribute__ ((visibility ("hidden")))
-int atexit(void (*func)(void))
-{
-  return (__cxa_atexit((void (*)(void *))func, (void *)0, &__dso_handle));
-}

libc/arch-mips/bionic/crtbegin.c

@@ -91,4 +91,4 @@ __asm__ (
 );
 
 #include "../../arch-common/bionic/__dso_handle.h"
-#include "atexit.h"
+#include "../../arch-common/bionic/atexit.h"

libc/arch-mips/bionic/crtbegin_so.c

@@ -1,38 +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.
- */
-
-extern void __cxa_finalize(void *);
-extern void *__dso_handle;
-
-__attribute__((visibility("hidden"),destructor))
-void __on_dlclose() {
-  __cxa_finalize(&__dso_handle);
-}
-
-#include "../../arch-common/bionic/__dso_handle_so.h"
-#include "atexit.h"

libc/arch-mips/bionic/setjmp.S

@@ -1,5 +1,3 @@
-/*      $OpenBSD: setjmp.S,v 1.5 2005/08/07 16:40:15 espie Exp $ */
-
 /*
  * Copyright (c) 2001-2002 Opsycon AB  (www.opsycon.se / www.opsycon.com)
  *
@@ -28,14 +26,116 @@
  * SUCH DAMAGE.
  *
  */
+/*-
+ * Copyright (c) 1991, 1993, 1995,
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Havard Eidnes.
+ *
+ * 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.
+ */
+/*
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Ralph Campbell.
+ *
+ * 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.
+ *
+ *	@(#)signal.h	8.1 (Berkeley) 6/10/93
+ */
 
 #include <private/bionic_asm.h>
-#include <machine/regnum.h>
-#include <machine/signal.h>
+#include <machine/setjmp.h>
+
+/* On Mips32, jmpbuf begins with optional 4-byte filler so that
+ *  all saved FP regs are aligned on 8-byte boundary, despite this whole
+ *  struct being mis-declared to users as an array of (4-byte) longs.
+ *  All the following offsets are then from the rounded-up base addr
+ */
+
+/* Fields of same size on all MIPS abis: */
+#define	SC_MAGIC        (0*4)		/* 4 bytes, identify jmpbuf */
+#define	SC_MASK		(1*4)		/* 4 bytes, saved signal mask */
+#define	SC_FPSR		(2*4)		/* 4 bytes, floating point control/status reg */
+/*     	filler2		(3*4)		   4 bytes, pad to 8-byte boundary */
+
+/* Registers that are 4-byte on mips32 o32, and 8-byte on mips64 n64 abi */
+#define	SC_REGS_SAVED	12		/* ra,gp,sp,s0-s8 */
+#define	SC_REGS		(4*4)		/* SC_REGS_SAVED*REGSZ bytes */
+
+/* Floating pt registers are 8-bytes on all abis,
+ * but the number of saved fp regs varies for o32/n32 versus n64 abis:
+ */
+
+#ifdef __LP64__
+#define	SC_FPREGS_SAVED	8  /* all  fp regs f24,f25,f26,f27,f28,f29,f30,f31 */
+#else
+#define	SC_FPREGS_SAVED	6  /* even fp regs f20,f22,f24,f26,f28,f30 */
+#endif
+
+#define	SC_FPREGS	(SC_REGS + SC_REGS_SAVED*REGSZ)  /* SC_FPREGS_SAVED*REGSZ_FP bytes */
+
+#define	SC_BYTES	(SC_FPREGS + SC_FPREGS_SAVED*REGSZ_FP)
+#define	SC_LONGS	(SC_BYTES/REGSZ)
+
+#ifdef __LP64__
+/* SC_LONGS is 22, so _JBLEN should be 22 or larger */
+#else
+/* SC_LONGS is 28, but must also allocate dynamic-roundup filler.
+   so _JBLEN should be 29 or larger */
+#endif
 
 /*
- * setjmp, longjmp implementation for libc. this code depends
- * on the layout of the struct sigcontext in machine/signal.h.
+ * _setjmp, _longjmp (restoring signal state)
+ *
+ *  GPOFF and FRAMESIZE must be the same for both _setjmp and _longjmp!
  *
  */
 
@@ -51,124 +151,319 @@ NON_LEAF(setjmp, FRAMESZ, ra)
 	SETUP_GP64(GPOFF, setjmp)
 	SAVE_GP(GPOFF)
 	.set	reorder
+
+#ifndef __LP64__
+	addiu   a0, 7				# roundup jmpbuf addr to 8-byte boundary
+	li      t0, ~7
+	and     a0, t0
+#endif
+
 	REG_S	ra, RAOFF(sp)			# save state
 	REG_S	a0, A0OFF(sp)
-
 	move	a0, zero			# get current signal mask
 	jal	sigblock
-
-	REG_L	v1, A0OFF(sp)			# v1 = jmpbuf
-	REG_S	v0, SC_MASK(v1)			# save sc_mask = sigblock(0)
-
-	REG_L	a0, A0OFF(sp)			# restore jmpbuf
+	REG_L	a0, A0OFF(sp)
 	REG_L	ra, RAOFF(sp)
-	REG_S	ra, SC_PC(a0)			# sc_pc = return address
-#if defined(__mips64)
-	dli	v0, 0xACEDBADE			# sigcontext magic number
-#else
-	li	v0, 0xACEDBADE			# sigcontext magic number
-#endif
-	REG_S	v0, SC_REGS+ZERO*REGSZ(a0)
-	REG_S	s0, SC_REGS+S0*REGSZ(a0)
-	REG_S	s1, SC_REGS+S1*REGSZ(a0)
-	REG_S	s2, SC_REGS+S2*REGSZ(a0)
-	REG_S	s3, SC_REGS+S3*REGSZ(a0)
-	REG_S	s4, SC_REGS+S4*REGSZ(a0)
-	REG_S	s5, SC_REGS+S5*REGSZ(a0)
-	REG_S	s6, SC_REGS+S6*REGSZ(a0)
-	REG_S	s7, SC_REGS+S7*REGSZ(a0)
-	REG_S	s8, SC_REGS+S8*REGSZ(a0)
-	REG_L	v0, GPOFF(sp)
-	REG_S	v0, SC_REGS+GP*REGSZ(a0)
-	PTR_ADDU v0, sp, FRAMESZ
-	REG_S	v0, SC_REGS+SP*REGSZ(a0)
 
-#if !defined(SOFTFLOAT)
-	li	v0, 1				# be nice if we could tell
-	REG_S	v0, SC_FPUSED(a0)		# sc_fpused = 1
+	REG_S	v0, SC_MASK(a0)			# save sc_mask = sigblock(0)
+
+	li	v0, 0xACEDBADE			# sigcontext magic number
+	sw	v0, SC_MAGIC(a0)
+	# callee-saved long-sized regs:
+	REG_S	ra, SC_REGS+0*REGSZ(a0)
+	REG_S	s0, SC_REGS+1*REGSZ(a0)
+	REG_S	s1, SC_REGS+2*REGSZ(a0)
+	REG_S	s2, SC_REGS+3*REGSZ(a0)
+	REG_S	s3, SC_REGS+4*REGSZ(a0)
+	REG_S	s4, SC_REGS+5*REGSZ(a0)
+	REG_S	s5, SC_REGS+6*REGSZ(a0)
+	REG_S	s6, SC_REGS+7*REGSZ(a0)
+	REG_S	s7, SC_REGS+8*REGSZ(a0)
+	REG_S	s8, SC_REGS+9*REGSZ(a0)
+	REG_L	v0, GPOFF(sp)
+	REG_S	v0, SC_REGS+10*REGSZ(a0)
+	PTR_ADDU v0, sp, FRAMESZ
+	REG_S	v0, SC_REGS+11*REGSZ(a0)
+
 	cfc1	v0, $31
-	s.d	$f20, SC_FPREGS+((F20-F0)*REGSZ_FP)(a0)
-	s.d	$f22, SC_FPREGS+((F22-F0)*REGSZ_FP)(a0)
-	s.d	$f24, SC_FPREGS+((F24-F0)*REGSZ_FP)(a0)
-	s.d	$f26, SC_FPREGS+((F26-F0)*REGSZ_FP)(a0)
-	s.d	$f28, SC_FPREGS+((F28-F0)*REGSZ_FP)(a0)
-	s.d	$f30, SC_FPREGS+((F30-F0)*REGSZ_FP)(a0)
-#if _MIPS_FPSET == 32
-	s.d	$f21, SC_FPREGS+((F21-F0)*REGSZ_FP)(a0)
-	s.d	$f23, SC_FPREGS+((F23-F0)*REGSZ_FP)(a0)
-	s.d	$f25, SC_FPREGS+((F25-F0)*REGSZ_FP)(a0)
-	s.d	$f27, SC_FPREGS+((F27-F0)*REGSZ_FP)(a0)
-	s.d	$f29, SC_FPREGS+((F29-F0)*REGSZ_FP)(a0)
-	s.d	$f31, SC_FPREGS+((F31-F0)*REGSZ_FP)(a0)
+
+#ifdef __LP64__
+	# callee-saved fp regs on mips n64 ABI are $f24..$f31
+	s.d	$f24, SC_FPREGS+0*REGSZ_FP(a0)
+	s.d	$f25, SC_FPREGS+1*REGSZ_FP(a0)
+	s.d	$f26, SC_FPREGS+2*REGSZ_FP(a0)
+	s.d	$f27, SC_FPREGS+3*REGSZ_FP(a0)
+	s.d	$f28, SC_FPREGS+4*REGSZ_FP(a0)
+	s.d	$f29, SC_FPREGS+5*REGSZ_FP(a0)
+	s.d	$f30, SC_FPREGS+6*REGSZ_FP(a0)
+	s.d	$f31, SC_FPREGS+7*REGSZ_FP(a0)
+#else
+	# callee-saved fp regs on mips o32 ABI are
+	#   the even-numbered fp regs $f20,$f22,...$f30
+	s.d	$f20, SC_FPREGS+0*REGSZ_FP(a0)
+	s.d	$f22, SC_FPREGS+1*REGSZ_FP(a0)
+	s.d	$f24, SC_FPREGS+2*REGSZ_FP(a0)
+	s.d	$f26, SC_FPREGS+3*REGSZ_FP(a0)
+	s.d	$f28, SC_FPREGS+4*REGSZ_FP(a0)
+	s.d	$f30, SC_FPREGS+5*REGSZ_FP(a0)
 #endif
-	REG_S	v0, SC_FPREGS+((FSR-F0)*REGSZ)(a0)
-#endif /* !SOFTFLOAT */
+	sw	v0, SC_FPSR(a0)
 	move	v0, zero
 	RESTORE_GP64
 	PTR_ADDU sp, FRAMESZ
 	j	ra
-
-botch:
-	jal	longjmperror
-	jal	abort
-	RESTORE_GP64
-	PTR_ADDU sp, FRAMESZ
 END(setjmp)
 
-
-LEAF(longjmp, FRAMESZ)
+NON_LEAF(longjmp, FRAMESZ, ra)
+	.mask	0x80000000, RAOFF
 	PTR_SUBU sp, FRAMESZ
 	SETUP_GP64(GPOFF, longjmp)
 	SAVE_GP(GPOFF)
 	.set	reorder
-	sw	a1, A1OFF(sp)
-	sw	a0, A0OFF(sp)
 
+#ifndef __LP64__
+	addiu	a0, 7				# roundup jmpbuf addr to 8-byte boundary
+	li      t0, ~7
+	and	a0, t0
+#endif
+
+	REG_S	a1, A1OFF(sp)
+	REG_S	a0, A0OFF(sp)
 	lw	a0, SC_MASK(a0)
 	jal	sigsetmask
+	REG_L	a0, A0OFF(sp)
+	REG_L	a1, A1OFF(sp)
 
-	lw	a0, A0OFF(sp)
-	lw	a1, A1OFF(sp)
+	lw	v0, SC_MAGIC(a0)
+	li	t0, 0xACEDBADE
+	bne	v0, t0, longjmp_botch			# jump if error
 
-	.set	noreorder
-	REG_L	v0, SC_REGS+ZERO*REGSZ(a0)
-	bne	v0, 0xACEDBADE, botch		# jump if error
-	REG_L	ra, SC_PC(a0)
-	REG_L	s0, SC_REGS+S0*REGSZ(a0)
-	REG_L	s1, SC_REGS+S1*REGSZ(a0)
-	REG_L	s2, SC_REGS+S2*REGSZ(a0)
-	REG_L	s3, SC_REGS+S3*REGSZ(a0)
-	REG_L	s4, SC_REGS+S4*REGSZ(a0)
-	REG_L	s5, SC_REGS+S5*REGSZ(a0)
-	REG_L	s6, SC_REGS+S6*REGSZ(a0)
-	REG_L	s7, SC_REGS+S7*REGSZ(a0)
-	REG_L	s8, SC_REGS+S8*REGSZ(a0)
-	REG_L	gp, SC_REGS+GP*REGSZ(a0)
-	REG_L	sp, SC_REGS+SP*REGSZ(a0)
+	# callee-saved long-sized regs:
+	REG_L	ra, SC_REGS+0*REGSZ(a0)
+	REG_L	s0, SC_REGS+1*REGSZ(a0)
+	REG_L	s1, SC_REGS+2*REGSZ(a0)
+	REG_L	s2, SC_REGS+3*REGSZ(a0)
+	REG_L	s3, SC_REGS+4*REGSZ(a0)
+	REG_L	s4, SC_REGS+5*REGSZ(a0)
+	REG_L	s5, SC_REGS+6*REGSZ(a0)
+	REG_L	s6, SC_REGS+7*REGSZ(a0)
+	REG_L	s7, SC_REGS+8*REGSZ(a0)
+	REG_L	s8, SC_REGS+9*REGSZ(a0)
+	REG_L	gp, SC_REGS+10*REGSZ(a0)
+	REG_L	sp, SC_REGS+11*REGSZ(a0)
 
-#if !defined(SOFTFLOAT)
-	REG_L	v0, SC_FPREGS+((FSR-F0)*REGSZ)(a0)
+	lw	v0, SC_FPSR(a0)
 	ctc1	v0, $31
-	l.d	$f20, SC_FPREGS+((F20-F0)*REGSZ_FP)(a0)
-	l.d	$f22, SC_FPREGS+((F22-F0)*REGSZ_FP)(a0)
-	l.d	$f24, SC_FPREGS+((F24-F0)*REGSZ_FP)(a0)
-	l.d	$f26, SC_FPREGS+((F26-F0)*REGSZ_FP)(a0)
-	l.d	$f28, SC_FPREGS+((F28-F0)*REGSZ_FP)(a0)
-	l.d	$f30, SC_FPREGS+((F30-F0)*REGSZ_FP)(a0)
-#if _MIPS_FPSET == 32
-	l.d	$f21, SC_FPREGS+((F21-F0)*REGSZ_FP)(a0)
-	l.d	$f23, SC_FPREGS+((F23-F0)*REGSZ_FP)(a0)
-	l.d	$f25, SC_FPREGS+((F25-F0)*REGSZ_FP)(a0)
-	l.d	$f27, SC_FPREGS+((F27-F0)*REGSZ_FP)(a0)
-	l.d	$f29, SC_FPREGS+((F29-F0)*REGSZ_FP)(a0)
-	l.d	$f31, SC_FPREGS+((F31-F0)*REGSZ_FP)(a0)
+#ifdef __LP64__
+	# callee-saved fp regs on mips n64 ABI are $f24..$f31
+	l.d	$f24, SC_FPREGS+0*REGSZ_FP(a0)
+	l.d	$f25, SC_FPREGS+1*REGSZ_FP(a0)
+	l.d	$f26, SC_FPREGS+2*REGSZ_FP(a0)
+	l.d	$f27, SC_FPREGS+3*REGSZ_FP(a0)
+	l.d	$f28, SC_FPREGS+4*REGSZ_FP(a0)
+	l.d	$f29, SC_FPREGS+5*REGSZ_FP(a0)
+	l.d	$f30, SC_FPREGS+6*REGSZ_FP(a0)
+	l.d	$f31, SC_FPREGS+7*REGSZ_FP(a0)
+#else
+	# callee-saved fp regs on mips o32 ABI are
+	#   the even-numbered fp regs $f20,$f22,...$f30
+	l.d	$f20, SC_FPREGS+0*REGSZ_FP(a0)
+	l.d	$f22, SC_FPREGS+1*REGSZ_FP(a0)
+	l.d	$f24, SC_FPREGS+2*REGSZ_FP(a0)
+	l.d	$f26, SC_FPREGS+3*REGSZ_FP(a0)
+	l.d	$f28, SC_FPREGS+4*REGSZ_FP(a0)
+	l.d	$f30, SC_FPREGS+5*REGSZ_FP(a0)
 #endif
-#endif /* !SOFTFLOAT */
 	bne	a1, zero, 1f
-	 nop
 	li	a1, 1			# never return 0!
 1:
-	j	ra
 	move	v0, a1
+	j	ra
 
+longjmp_botch:
+	jal	longjmperror
+	jal	abort
+	RESTORE_GP64
+	PTR_ADDU sp, FRAMESZ
 END(longjmp)
+
+
+/*
+ * _setjmp, _longjmp (not restoring signal state)
+ *
+ *  GPOFF and FRAMESIZE must be the same for both _setjmp and _longjmp!
+ *
+ */
+
+FRAMESZ= MKFSIZ(0,4)
+GPOFF= FRAMESZ-2*REGSZ
+
+LEAF(_setjmp, FRAMESZ)
+	PTR_SUBU sp, FRAMESZ
+	SETUP_GP64(GPOFF, _setjmp)
+	SAVE_GP(GPOFF)
+	.set	reorder
+
+#ifndef __LP64__
+	addiu   a0, 7				# roundup jmpbuf addr to 8-byte boundary
+	li      t0, ~7
+	and     a0, t0
+#endif
+
+	# SC_MASK is unused here
+
+	li	v0, 0xACEDBADE			# sigcontext magic number
+	sw	v0, SC_MAGIC(a0)
+	# callee-saved long-sized regs:
+	REG_S	ra, SC_REGS+0*REGSZ(a0)
+	REG_S	s0, SC_REGS+1*REGSZ(a0)
+	REG_S	s1, SC_REGS+2*REGSZ(a0)
+	REG_S	s2, SC_REGS+3*REGSZ(a0)
+	REG_S	s3, SC_REGS+4*REGSZ(a0)
+	REG_S	s4, SC_REGS+5*REGSZ(a0)
+	REG_S	s5, SC_REGS+6*REGSZ(a0)
+	REG_S	s6, SC_REGS+7*REGSZ(a0)
+	REG_S	s7, SC_REGS+8*REGSZ(a0)
+	REG_S	s8, SC_REGS+9*REGSZ(a0)
+	REG_L	v0, GPOFF(sp)
+	REG_S	v0, SC_REGS+10*REGSZ(a0)
+	PTR_ADDU v0, sp, FRAMESZ
+	REG_S	v0, SC_REGS+11*REGSZ(a0)
+
+	cfc1	v0, $31
+
+#ifdef __LP64__
+	# callee-saved fp regs on mips n64 ABI are $f24..$f31
+	s.d	$f24, SC_FPREGS+0*REGSZ_FP(a0)
+	s.d	$f25, SC_FPREGS+1*REGSZ_FP(a0)
+	s.d	$f26, SC_FPREGS+2*REGSZ_FP(a0)
+	s.d	$f27, SC_FPREGS+3*REGSZ_FP(a0)
+	s.d	$f28, SC_FPREGS+4*REGSZ_FP(a0)
+	s.d	$f29, SC_FPREGS+5*REGSZ_FP(a0)
+	s.d	$f30, SC_FPREGS+6*REGSZ_FP(a0)
+	s.d	$f31, SC_FPREGS+7*REGSZ_FP(a0)
+#else
+	# callee-saved fp regs on mips o32 ABI are
+	#   the even-numbered fp regs $f20,$f22,...$f30
+	s.d	$f20, SC_FPREGS+0*REGSZ_FP(a0)
+	s.d	$f22, SC_FPREGS+1*REGSZ_FP(a0)
+	s.d	$f24, SC_FPREGS+2*REGSZ_FP(a0)
+	s.d	$f26, SC_FPREGS+3*REGSZ_FP(a0)
+	s.d	$f28, SC_FPREGS+4*REGSZ_FP(a0)
+	s.d	$f30, SC_FPREGS+5*REGSZ_FP(a0)
+#endif
+	sw	v0, SC_FPSR(a0)
+	move	v0, zero
+	RESTORE_GP64
+	PTR_ADDU sp, FRAMESZ
+	j	ra
+END(_setjmp)
+
+
+LEAF(_longjmp, FRAMESZ)
+	PTR_SUBU sp, FRAMESZ
+	SETUP_GP64(GPOFF, _longjmp)
+	SAVE_GP(GPOFF)
+	.set	reorder
+
+#ifndef __LP64__
+	addiu	a0, 7				# roundup jmpbuf addr to 8-byte boundary
+	li      t0, ~7
+	and	a0, t0
+#endif
+
+	# SC_MASK is unused here
+
+	lw	v0, SC_MAGIC(a0)
+	li	t0, 0xACEDBADE
+	bne	v0, t0, _longjmp_botch			# jump if error
+
+	# callee-saved long-sized regs:
+	REG_L	ra, SC_REGS+0*REGSZ(a0)
+	REG_L	s0, SC_REGS+1*REGSZ(a0)
+	REG_L	s1, SC_REGS+2*REGSZ(a0)
+	REG_L	s2, SC_REGS+3*REGSZ(a0)
+	REG_L	s3, SC_REGS+4*REGSZ(a0)
+	REG_L	s4, SC_REGS+5*REGSZ(a0)
+	REG_L	s5, SC_REGS+6*REGSZ(a0)
+	REG_L	s6, SC_REGS+7*REGSZ(a0)
+	REG_L	s7, SC_REGS+8*REGSZ(a0)
+	REG_L	s8, SC_REGS+9*REGSZ(a0)
+	REG_L	gp, SC_REGS+10*REGSZ(a0)
+	REG_L	sp, SC_REGS+11*REGSZ(a0)
+
+	lw	v0, SC_FPSR(a0)
+	ctc1	v0, $31
+#ifdef __LP64__
+	# callee-saved fp regs on mips n64 ABI are $f24..$f31
+	l.d	$f24, SC_FPREGS+0*REGSZ_FP(a0)
+	l.d	$f25, SC_FPREGS+1*REGSZ_FP(a0)
+	l.d	$f26, SC_FPREGS+2*REGSZ_FP(a0)
+	l.d	$f27, SC_FPREGS+3*REGSZ_FP(a0)
+	l.d	$f28, SC_FPREGS+4*REGSZ_FP(a0)
+	l.d	$f29, SC_FPREGS+5*REGSZ_FP(a0)
+	l.d	$f30, SC_FPREGS+6*REGSZ_FP(a0)
+	l.d	$f31, SC_FPREGS+7*REGSZ_FP(a0)
+#else
+	# callee-saved fp regs on mips o32 ABI are
+	#   the even-numbered fp regs $f20,$f22,...$f30
+	l.d	$f20, SC_FPREGS+0*REGSZ_FP(a0)
+	l.d	$f22, SC_FPREGS+1*REGSZ_FP(a0)
+	l.d	$f24, SC_FPREGS+2*REGSZ_FP(a0)
+	l.d	$f26, SC_FPREGS+3*REGSZ_FP(a0)
+	l.d	$f28, SC_FPREGS+4*REGSZ_FP(a0)
+	l.d	$f30, SC_FPREGS+5*REGSZ_FP(a0)
+#endif
+	bne	a1, zero, 1f
+	li	a1, 1			# never return 0!
+1:
+	move	v0, a1
+	j	ra
+
+_longjmp_botch:
+	jal	longjmperror
+	jal	abort
+	RESTORE_GP64
+	PTR_ADDU sp, FRAMESZ
+END(_longjmp)
+
+/*
+ * trampolines for sigsetjmp and  siglongjmp save and restore mask.
+ *
+ */
+FRAMESZ= MKFSIZ(1,1)
+GPOFF= FRAMESZ-2*REGSZ
+
+LEAF(sigsetjmp, FRAMESZ)
+	PTR_SUBU sp, FRAMESZ
+	SETUP_GP64(GPOFF, sigsetjmp)
+	.set	reorder
+	sw	a1, _JBLEN*REGSZ(a0)		# save "savemask"
+	bne	a1, 0x0, 1f			# do saving of signal mask?
+	LA	t9, _setjmp
+	RESTORE_GP64
+	PTR_ADDU sp, FRAMESZ
+	jr t9
+
+1:	LA	t9, setjmp
+	RESTORE_GP64
+	PTR_ADDU sp, FRAMESZ
+	jr t9
+END(sigsetjmp)
+
+LEAF(siglongjmp, FRAMESZ)
+	PTR_SUBU sp, FRAMESZ
+	SETUP_GP64(GPOFF, siglongjmp)
+	.set	reorder
+	lw	t0, _JBLEN*REGSZ(a0)		# get "savemask"
+	bne	t0, 0x0, 1f			# restore signal mask?
+	LA	t9, _longjmp
+	RESTORE_GP64
+	PTR_ADDU sp, FRAMESZ
+	jr	t9
+1:
+	LA	t9, longjmp
+	RESTORE_GP64
+	PTR_ADDU sp, FRAMESZ
+	jr	t9
+END(siglongjmp)

libc/arch-mips/include/machine/asm.h

@@ -28,9 +28,7 @@
 #ifndef _MIPS64_ASM_H
 #define _MIPS64_ASM_H
 
-#ifndef _ALIGN_TEXT
-# define _ALIGN_TEXT .align 4
-#endif
+#define __bionic_asm_align 4
 
 #undef __bionic_asm_custom_entry
 #undef __bionic_asm_custom_end

libc/arch-mips/include/machine/endian.h

@@ -1,70 +0,0 @@
-/*	$OpenBSD: endian.h,v 1.5 2006/02/27 23:35:59 miod Exp $ */
-
-/*
- * Copyright (c) 2001-2002 Opsycon AB  (www.opsycon.se / www.opsycon.com)
- *
- * 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.
- *
- * 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 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 _MIPS64_ENDIAN_H_
-#define _MIPS64_ENDIAN_H_
-
-#ifdef __GNUC__
-
-#if defined(__mips_isa_rev) && (__mips_isa_rev >= 2)
-#define __swap16md(x) ({					\
-    register uint16_t _x = (x);					\
-    register uint16_t _r;					\
-    __asm volatile ("wsbh %0, %1" : "=r" (_r) : "r" (_x));	\
-    _r;								\
-})
-
-#define __swap32md(x) ({					\
-    register uint32_t _x = (x);					\
-    register uint32_t _r;					\
-    __asm volatile ("wsbh %0, %1; rotr %0, %0, 16" : "=r" (_r) : "r" (_x)); \
-    _r;								\
-})
-
-#define __swap64md(x) ({					\
-    uint64_t _swap64md_x = (x);					\
-    (uint64_t) __swap32md(_swap64md_x >> 32) |			\
-        (uint64_t) __swap32md(_swap64md_x & 0xffffffff) << 32;	\
-})
-
-/* Tell sys/endian.h we have MD variants of the swap macros.  */
-#define MD_SWAP
-
-#endif  /* __mips32r2__ */
-#endif  /* __GNUC__ */
-
-#if defined(__MIPSEB__)
-#define _BYTE_ORDER _BIG_ENDIAN
-#else
-#define _BYTE_ORDER _LITTLE_ENDIAN
-#endif
-#define __STRICT_ALIGNMENT
-#include <sys/types.h>
-#include <sys/endian.h>
-
-#endif /* _MIPS64_ENDIAN_H_ */

libc/arch-mips/include/machine/exec.h

@@ -1,188 +0,0 @@
-/*	$OpenBSD: exec.h,v 1.1 2004/10/18 19:05:36 grange Exp $	*/
-
-/*
- * Copyright (c) 1996-2004 Per Fogelstrom, Opsycon AB
- *
- * 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.
- *
- * 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 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 _MIPS64_EXEC_H_
-#define _MIPS64_EXEC_H_
-
-#define	__LDPGSZ	4096
-
-/*
- *  Define what exec "formats" we should handle.
- */
-#define NATIVE_EXEC_ELF
-#define NATIVE_ELFSIZE 64
-#define	EXEC_SCRIPT
-
-/*
- *  If included from sys/exec.h define kernels ELF format.
- */
-#ifdef __LP64__
-#define	ARCH_ELFSIZE 64
-#define DB_ELFSIZE 64
-#define ELF_TARG_CLASS  ELFCLASS64
-#else
-#define	ARCH_ELFSIZE 32
-#define DB_ELFSIZE 32
-#define ELF_TARG_CLASS  ELFCLASS32
-#endif
-
-#if defined(__MIPSEB__)
-#define ELF_TARG_DATA		ELFDATA2MSB
-#else
-#define ELF_TARG_DATA		ELFDATA2LSB
-#endif
-#define ELF_TARG_MACH		EM_MIPS
-
-#define _NLIST_DO_ELF
-
-#if defined(_LP64)
-#define _KERN_DO_ELF64
-#if defined(COMPAT_O32)
-#define _KERN_DO_ELF
-#endif
-#else
-#define _KERN_DO_ELF
-#endif
-
-/* Information taken from MIPS ABI supplemental */
-
-/* Architecture dependent Segment types - p_type */
-#define PT_MIPS_REGINFO 0x70000000      /* Register usage information */
-
-/* Architecture dependent d_tag field for Elf32_Dyn.  */
-#define DT_MIPS_RLD_VERSION  0x70000001 /* Runtime Linker Interface ID */
-#define DT_MIPS_TIME_STAMP   0x70000002 /* Timestamp */
-#define DT_MIPS_ICHECKSUM    0x70000003 /* Cksum of ext. str. and com. sizes */
-#define DT_MIPS_IVERSION     0x70000004 /* Version string (string tbl index) */
-#define DT_MIPS_FLAGS        0x70000005 /* Flags */
-#define DT_MIPS_BASE_ADDRESS 0x70000006 /* Segment base address */
-#define DT_MIPS_CONFLICT     0x70000008 /* Adr of .conflict section */
-#define DT_MIPS_LIBLIST      0x70000009 /* Address of .liblist section */
-#define DT_MIPS_LOCAL_GOTNO  0x7000000a /* Number of local .GOT entries */
-#define DT_MIPS_CONFLICTNO   0x7000000b /* Number of .conflict entries */
-#define DT_MIPS_LIBLISTNO    0x70000010 /* Number of .liblist entries */
-#define DT_MIPS_SYMTABNO     0x70000011 /* Number of .dynsym entries */
-#define DT_MIPS_UNREFEXTNO   0x70000012 /* First external DYNSYM */
-#define DT_MIPS_GOTSYM       0x70000013 /* First GOT entry in .dynsym */
-#define DT_MIPS_HIPAGENO     0x70000014 /* Number of GOT page table entries */
-#define DT_MIPS_RLD_MAP      0x70000016 /* Address of debug map pointer */
-
-#define DT_PROCNUM (DT_MIPS_RLD_MAP - DT_LOPROC + 1)
-
-/*
- * Legal values for e_flags field of Elf32_Ehdr.
- */
-#define EF_MIPS_NOREORDER	0x00000001	/* .noreorder was used */
-#define EF_MIPS_PIC		0x00000002	/* Contains PIC code */
-#define EF_MIPS_CPIC		0x00000004	/* Uses PIC calling sequence */
-#define	EF_MIPS_ABI2		0x00000020	/* -n32 on Irix 6 */
-#define	EF_MIPS_32BITMODE	0x00000100	/* 64 bit in 32 bit mode... */
-#define EF_MIPS_ARCH		0xf0000000	/* MIPS architecture level */
-#define	E_MIPS_ARCH_1		0x00000000
-#define	E_MIPS_ARCH_2		0x10000000
-#define	E_MIPS_ARCH_3		0x20000000
-#define	E_MIPS_ARCH_4		0x30000000
-#define	EF_MIPS_ABI		0x0000f000	/* ABI level */
-#define	E_MIPS_ABI_NONE		0x00000000	/* ABI level not set */
-#define	E_MIPS_ABI_O32		0x00001000
-#define	E_MIPS_ABI_O64		0x00002000
-#define	E_MIPS_ABI_EABI32	0x00004000
-#define	E_MIPS_ABI_EABI64	0x00004000
-
-/*
- * Mips special sections.
- */
-#define	SHN_MIPS_ACOMMON	0xff00		/* Allocated common symbols */
-#define	SHN_MIPS_SCOMMON	0xff03		/* Small common symbols */
-#define	SHN_MIPS_SUNDEFINED	0xff04		/* Small undefined symbols */
-
-/*
- * Legal values for sh_type field of Elf32_Shdr.
- */
-#define	SHT_MIPS_LIBLIST  0x70000000	/* Shared objects used in link */
-#define	SHT_MIPS_CONFLICT 0x70000002	/* Conflicting symbols */
-#define	SHT_MIPS_GPTAB    0x70000003	/* Global data area sizes */
-#define	SHT_MIPS_UCODE    0x70000004	/* Reserved for SGI/MIPS compilers */
-#define	SHT_MIPS_DEBUG    0x70000005	/* MIPS ECOFF debugging information */
-#define	SHT_MIPS_REGINFO  0x70000006	/* Register usage information */
-
-/*
- * Legal values for sh_flags field of Elf32_Shdr.
- */
-#define	SHF_MIPS_GPREL	0x10000000	/* Must be part of global data area */
-
-#if 0
-/*
- * Entries found in sections of type SHT_MIPS_GPTAB.
- */
-typedef union {
-	struct {
-		Elf32_Word gt_current_g_value;	/* -G val used in compilation */
-		Elf32_Word gt_unused;	/* Not used */
-	} gt_header;			/* First entry in section */
-	struct {
-		Elf32_Word gt_g_value;	/* If this val were used for -G */
-		Elf32_Word gt_bytes;	/* This many bytes would be used */
-	} gt_entry;			/* Subsequent entries in section */
-} Elf32_gptab;
-
-/*
- * Entry found in sections of type SHT_MIPS_REGINFO.
- */
-typedef struct {
-	Elf32_Word	ri_gprmask;	/* General registers used */
-	Elf32_Word	ri_cprmask[4];	/* Coprocessor registers used */
-	Elf32_Sword	ri_gp_value;	/* $gp register value */
-} Elf32_RegInfo;
-#endif
-
-
-/*
- * Mips relocations.
- */
-
-#define	R_MIPS_NONE	0	/* No reloc */
-#define	R_MIPS_16	1	/* Direct 16 bit */
-#define	R_MIPS_32	2	/* Direct 32 bit */
-#define	R_MIPS_REL32	3	/* PC relative 32 bit */
-#define	R_MIPS_26	4	/* Direct 26 bit shifted */
-#define	R_MIPS_HI16	5	/* High 16 bit */
-#define	R_MIPS_LO16	6	/* Low 16 bit */
-#define	R_MIPS_GPREL16	7	/* GP relative 16 bit */
-#define	R_MIPS_LITERAL	8	/* 16 bit literal entry */
-#define	R_MIPS_GOT16	9	/* 16 bit GOT entry */
-#define	R_MIPS_PC16	10	/* PC relative 16 bit */
-#define	R_MIPS_CALL16	11	/* 16 bit GOT entry for function */
-#define	R_MIPS_GPREL32	12	/* GP relative 32 bit */
-
-#define	R_MIPS_64	18
-
-#define	R_MIPS_REL32_64	((R_MIPS_64 << 8) | R_MIPS_REL32)
-
-
-#endif	/* !_MIPS64_EXEC_H_ */

libc/arch-mips/include/machine/regdef.h

@@ -37,6 +37,13 @@
 #ifndef _MIPS_REGDEF_H_
 #define _MIPS_REGDEF_H_
 
+#if (_MIPS_SIM == _ABI64) && !defined(__mips_n64)
+#define __mips_n64 1
+#endif
+#if (_MIPS_SIM == _ABIN32) &&  !defined(__mips_n32)
+#define __mips_n32 1
+#endif
+
 #define zero	$0	/* always zero */
 #define AT	$at	/* assembler temp */
 #define v0	$2	/* return value */

libc/arch-mips/include/machine/regnum.h

@@ -1,119 +0,0 @@
-/*	$OpenBSD: regnum.h,v 1.3 2004/08/10 20:28:13 deraadt Exp $ */
-
-/*
- * Copyright (c) 2001-2002 Opsycon AB  (www.opsycon.se / www.opsycon.com)
- *
- * 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.
- *
- * 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 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 _MIPS64_REGNUM_H_
-#define _MIPS64_REGNUM_H_
-
-/*
- * Location of the saved registers relative to ZERO.
- * Usage is p->p_regs[XX].
- */
-#define ZERO	0
-#define AST	1
-#define V0	2
-#define V1	3
-#define A0	4
-#define A1	5
-#define A2	6
-#define A3	7
-#define T0	8
-#define T1	9
-#define T2	10
-#define T3	11
-#define T4	12
-#define T5	13
-#define T6	14
-#define T7	15
-#define S0	16
-#define S1	17
-#define S2	18
-#define S3	19
-#define S4	20
-#define S5	21
-#define S6	22
-#define S7	23
-#define T8	24
-#define T9	25
-#define K0	26
-#define K1	27
-#define GP	28
-#define SP	29
-#define S8	30
-#define RA	31
-#define	SR	32
-#define	PS	SR	/* alias for SR */
-#define MULLO	33
-#define MULHI	34
-#define BADVADDR 35
-#define CAUSE	36
-#define	PC	37
-#define	IC	38
-#define	CPL	39
-
-#define	NUMSAVEREGS 40		/* Number of registers saved in trap */
-
-#define FPBASE	NUMSAVEREGS
-#define F0	(FPBASE+0)
-#define F1	(FPBASE+1)
-#define F2	(FPBASE+2)
-#define F3	(FPBASE+3)
-#define F4	(FPBASE+4)
-#define F5	(FPBASE+5)
-#define F6	(FPBASE+6)
-#define F7	(FPBASE+7)
-#define F8	(FPBASE+8)
-#define F9	(FPBASE+9)
-#define F10	(FPBASE+10)
-#define F11	(FPBASE+11)
-#define F12	(FPBASE+12)
-#define F13	(FPBASE+13)
-#define F14	(FPBASE+14)
-#define F15	(FPBASE+15)
-#define F16	(FPBASE+16)
-#define F17	(FPBASE+17)
-#define F18	(FPBASE+18)
-#define F19	(FPBASE+19)
-#define F20	(FPBASE+20)
-#define F21	(FPBASE+21)
-#define F22	(FPBASE+22)
-#define F23	(FPBASE+23)
-#define F24	(FPBASE+24)
-#define F25	(FPBASE+25)
-#define F26	(FPBASE+26)
-#define F27	(FPBASE+27)
-#define F28	(FPBASE+28)
-#define F29	(FPBASE+29)
-#define F30	(FPBASE+30)
-#define F31	(FPBASE+31)
-#define	FSR	(FPBASE+32)
-
-#define	NUMFPREGS 33
-
-#define	NREGS	(NUMSAVEREGS + NUMFPREGS)
-
-#endif /* !_MIPS64_REGNUM_H_ */

libc/arch-mips/include/machine/setjmp.h

@@ -5,6 +5,10 @@
 #ifndef _MIPS_SETJMP_H_
 #define _MIPS_SETJMP_H_
 
-#define	_JBLEN	157		/* size, in longs, of a jmp_buf */
+#ifdef __LP64__
+#define	_JBLEN	22		/* size, in 8-byte longs, of a mips64 jmp_buf */
+#else
+#define	_JBLEN	29		/* size, in 4-byte longs, of a mips32 jmp_buf */
+#endif
 
 #endif /* !_MIPS_SETJMP_H_ */

libc/arch-mips/mips.mk

@@ -1,17 +1,32 @@
-# mips specific configs
+# 32-bit mips.
 
-# These are shared by all the 32-bit targets, but not the 64-bit ones.
-libc_common_src_files_mips := \
+#
+# Various kinds of LP32 cruft.
+#
+
+libc_bionic_src_files_mips += \
+    bionic/mmap.cpp \
+
+libc_common_src_files_mips += \
     bionic/legacy_32_bit_support.cpp \
     bionic/ndk_cruft.cpp \
     bionic/time64.c \
+
+libc_netbsd_src_files_mips += \
+    upstream-netbsd/common/lib/libc/hash/sha1/sha1.c \
+
+libc_openbsd_src_files_mips += \
     upstream-openbsd/lib/libc/stdio/putw.c \
 
-# These are shared by all the 32-bit targets, but not the 64-bit ones.
-libc_bionic_src_files_mips += \
-     bionic/mmap.cpp
+#
+# Default implementations of functions that are commonly optimized.
+#
 
-libc_common_src_files_mips += \
+libc_bionic_src_files_mips += \
+    bionic/__memcpy_chk.cpp \
+    bionic/__memset_chk.cpp \
+    bionic/__strcpy_chk.cpp \
+    bionic/__strcat_chk.cpp \
     bionic/memchr.c \
     bionic/memcmp.c \
     bionic/memmove.c \
@@ -19,6 +34,8 @@ libc_common_src_files_mips += \
     bionic/strchr.cpp \
     bionic/strnlen.c \
     bionic/strrchr.cpp \
+
+libc_freebsd_src_files_mips += \
     upstream-freebsd/lib/libc/string/wcscat.c \
     upstream-freebsd/lib/libc/string/wcschr.c \
     upstream-freebsd/lib/libc/string/wcscmp.c \
@@ -27,6 +44,8 @@ libc_common_src_files_mips += \
     upstream-freebsd/lib/libc/string/wcsrchr.c \
     upstream-freebsd/lib/libc/string/wmemcmp.c \
     upstream-freebsd/lib/libc/string/wmemmove.c \
+
+libc_openbsd_src_files_mips += \
     upstream-openbsd/lib/libc/string/bcopy.c \
     upstream-openbsd/lib/libc/string/stpcpy.c \
     upstream-openbsd/lib/libc/string/stpncpy.c \
@@ -39,24 +58,16 @@ libc_common_src_files_mips += \
     upstream-openbsd/lib/libc/string/strncmp.c \
     upstream-openbsd/lib/libc/string/strncpy.c \
 
-# Fortify implementations of libc functions.
-libc_common_src_files_mips += \
-    bionic/__memcpy_chk.cpp \
-    bionic/__memset_chk.cpp \
-    bionic/__strcpy_chk.cpp \
-    bionic/__strcat_chk.cpp \
+#
+# Inherently architecture-specific code.
+#
 
-
-##########################################
-### CPU specific source files
 libc_bionic_src_files_mips += \
     arch-mips/bionic/__bionic_clone.S \
     arch-mips/bionic/bzero.S \
     arch-mips/bionic/cacheflush.cpp \
     arch-mips/bionic/_exit_with_stack_teardown.S \
-    arch-mips/bionic/_setjmp.S \
     arch-mips/bionic/setjmp.S \
-    arch-mips/bionic/sigsetjmp.S \
     arch-mips/bionic/syscall.S \
     arch-mips/bionic/vfork.S \
 
@@ -69,13 +80,12 @@ libc_bionic_src_files_mips += \
 else
 libc_bionic_src_files_mips += \
     bionic/memcpy.cpp \
-    bionic/memset.c
-libc_common_src_files_mips += \
-    upstream-openbsd/lib/libc/string/strlen.c
-endif
+    bionic/memset.c \
 
-libc_netbsd_src_files_mips := \
-    upstream-netbsd/common/lib/libc/hash/sha1/sha1.c \
+libc_openbsd_src_files_mips += \
+    upstream-openbsd/lib/libc/string/strlen.c \
+
+endif
 
 libc_crt_target_cflags_mips := \
     $($(my_2nd_arch_prefix)TARGET_GLOBAL_CFLAGS) \

libc/arch-mips/string/mips_strlen.c

@@ -30,6 +30,7 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+#include <string.h>
 #include "mips-string-ops.h"
 
 #define do_strlen_word(__av) {\
@@ -47,8 +48,8 @@
 #define strlen my_strlen
 #endif
 
-int
-strlen (const void *_a)
+size_t
+strlen (const char *_a)
 {
   int cnt = 0;
   unsigned x;

libc/arch-mips/syscalls/__clock_nanosleep.S

@@ -2,7 +2,7 @@
 
 #include <private/bionic_asm.h>
 
-ENTRY(clock_nanosleep)
+ENTRY(__clock_nanosleep)
     .set noreorder
     .cpload t9
     li v0, __NR_clock_nanosleep
@@ -16,4 +16,4 @@ ENTRY(clock_nanosleep)
     j t9
     nop
     .set reorder
-END(clock_nanosleep)
+END(__clock_nanosleep)

libc/arch-mips/syscalls/__rt_sigqueueinfo.S

@@ -0,0 +1,19 @@
+/* Generated by gensyscalls.py. Do not edit. */
+
+#include <private/bionic_asm.h>
+
+ENTRY(__rt_sigqueueinfo)
+    .set noreorder
+    .cpload t9
+    li v0, __NR_rt_sigqueueinfo
+    syscall
+    bnez a3, 1f
+    move a0, v0
+    j ra
+    nop
+1:
+    la t9,__set_errno_internal
+    j t9
+    nop
+    .set reorder
+END(__rt_sigqueueinfo)

libc/arch-mips/syscalls/sethostname.S

@@ -0,0 +1,19 @@
+/* Generated by gensyscalls.py. Do not edit. */
+
+#include <private/bionic_asm.h>
+
+ENTRY(sethostname)
+    .set noreorder
+    .cpload t9
+    li v0, __NR_sethostname
+    syscall
+    bnez a3, 1f
+    move a0, v0
+    j ra
+    nop
+1:
+    la t9,__set_errno_internal
+    j t9
+    nop
+    .set reorder
+END(sethostname)

libc/arch-mips64/bionic/_setjmp.S

@@ -1,150 +0,0 @@
-/*	$OpenBSD: _setjmp.S,v 1.4 2005/08/07 16:40:15 espie Exp $ */
-
-/*
- * Copyright (c) 2002 Opsycon AB  (www.opsycon.se / www.opsycon.com)
- *
- * 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 Opsycon AB 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 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 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 <machine/regnum.h>
-#include <machine/signal.h>
-
-/*
- * _setjmp, _longjmp (not restoring signal state)
- *
- * XXX FPSET should probably be taken from SR setting. hmmm...
- *  GPOFF and FRAMESIZE must be the same for both _setjmp and _longjmp!
- *
- */
-
-FRAMESZ= MKFSIZ(0,4)
-GPOFF= FRAMESZ-2*REGSZ
-
-LEAF(_setjmp, FRAMESZ)
-	PTR_SUBU sp, FRAMESZ
-	SETUP_GP64(GPOFF, _setjmp)
-	SAVE_GP(GPOFF)
-	.set	noreorder
-#if defined(__mips64)
-	dli	v0, 0xACEDBADE			# sigcontext magic number
-#else
-	li	v0, 0xACEDBADE			# sigcontext magic number
-#endif
-	REG_S	v0, SC_REGS+ZERO*REGSZ(a0)
-	REG_S	s0, SC_REGS+S0*REGSZ(a0)
-	REG_S	s1, SC_REGS+S1*REGSZ(a0)
-	REG_S	s2, SC_REGS+S2*REGSZ(a0)
-	REG_S	s3, SC_REGS+S3*REGSZ(a0)
-	REG_S	s4, SC_REGS+S4*REGSZ(a0)
-	REG_S	s5, SC_REGS+S5*REGSZ(a0)
-	REG_S	s6, SC_REGS+S6*REGSZ(a0)
-	REG_S	s7, SC_REGS+S7*REGSZ(a0)
-	REG_S	s8, SC_REGS+S8*REGSZ(a0)
-	REG_L	v0, GPOFF(sp)
-	REG_S	v0, SC_REGS+GP*REGSZ(a0)
-	PTR_ADDU v0, sp, FRAMESZ
-	REG_S	v0, SC_REGS+SP*REGSZ(a0)
-	REG_S	ra, SC_PC(a0)
-
-#if !defined(SOFTFLOAT)
-	li	v0, 1				# be nice if we could tell
-	REG_S	v0, SC_FPUSED(a0)		# sc_fpused = 1
-	cfc1	v0, $31
-	s.d	$f20, SC_FPREGS+((F20-F0)*REGSZ_FP)(a0)
-	s.d	$f22, SC_FPREGS+((F22-F0)*REGSZ_FP)(a0)
-	s.d	$f24, SC_FPREGS+((F24-F0)*REGSZ_FP)(a0)
-	s.d	$f26, SC_FPREGS+((F26-F0)*REGSZ_FP)(a0)
-	s.d	$f28, SC_FPREGS+((F28-F0)*REGSZ_FP)(a0)
-	s.d	$f30, SC_FPREGS+((F30-F0)*REGSZ_FP)(a0)
-#if _MIPS_FPSET == 32
-	s.d	$f21, SC_FPREGS+((F21-F0)*REGSZ_FP)(a0)
-	s.d	$f23, SC_FPREGS+((F23-F0)*REGSZ_FP)(a0)
-	s.d	$f25, SC_FPREGS+((F25-F0)*REGSZ_FP)(a0)
-	s.d	$f27, SC_FPREGS+((F27-F0)*REGSZ_FP)(a0)
-	s.d	$f29, SC_FPREGS+((F29-F0)*REGSZ_FP)(a0)
-	s.d	$f31, SC_FPREGS+((F31-F0)*REGSZ_FP)(a0)
-#endif
-	REG_S	v0, SC_FPREGS+((FSR-F0)*REGSZ)(a0)
-#endif /* !SOFTFLOAT */
-	RESTORE_GP64
-	PTR_ADDU sp, FRAMESZ
-	j	ra
-	 move	v0, zero
-END(_setjmp)
-
-LEAF(_longjmp, FRAMESZ)
-	PTR_SUBU sp, FRAMESZ
-	SETUP_GP64(GPOFF, _longjmp)
-	SAVE_GP(GPOFF)
-	.set    noreorder
-	REG_L	v0, SC_REGS+ZERO*REGSZ(a0)
-	bne	v0, 0xACEDBADE, botch		# jump if error
-	REG_L	ra, SC_PC(a0)
-	REG_L	v0, SC_FPREGS+((FSR-F0)*REGSZ)(a0)
-	REG_L	s0, SC_REGS+S0*REGSZ(a0)
-	REG_L	s1, SC_REGS+S1*REGSZ(a0)
-	REG_L	s2, SC_REGS+S2*REGSZ(a0)
-	REG_L	s3, SC_REGS+S3*REGSZ(a0)
-	REG_L	s4, SC_REGS+S4*REGSZ(a0)
-	REG_L	s5, SC_REGS+S5*REGSZ(a0)
-	REG_L	s6, SC_REGS+S6*REGSZ(a0)
-	REG_L	s7, SC_REGS+S7*REGSZ(a0)
-	REG_L	s8, SC_REGS+S8*REGSZ(a0)
-	REG_L	gp, SC_REGS+GP*REGSZ(a0)
-	REG_L	sp, SC_REGS+SP*REGSZ(a0)
-#if !defined(SOFTFLOAT)
-	ctc1	v0, $31
-	l.d	$f20, SC_FPREGS+((F20-F0)*REGSZ_FP)(a0)
-	l.d	$f22, SC_FPREGS+((F22-F0)*REGSZ_FP)(a0)
-	l.d	$f24, SC_FPREGS+((F24-F0)*REGSZ_FP)(a0)
-	l.d	$f26, SC_FPREGS+((F26-F0)*REGSZ_FP)(a0)
-	l.d	$f28, SC_FPREGS+((F28-F0)*REGSZ_FP)(a0)
-	l.d	$f30, SC_FPREGS+((F30-F0)*REGSZ_FP)(a0)
-#if _MIPS_FPSET == 32
-	l.d	$f21, SC_FPREGS+((F21-F0)*REGSZ_FP)(a0)
-	l.d	$f23, SC_FPREGS+((F23-F0)*REGSZ_FP)(a0)
-	l.d	$f25, SC_FPREGS+((F25-F0)*REGSZ_FP)(a0)
-	l.d	$f27, SC_FPREGS+((F27-F0)*REGSZ_FP)(a0)
-	l.d	$f29, SC_FPREGS+((F29-F0)*REGSZ_FP)(a0)
-	l.d	$f31, SC_FPREGS+((F31-F0)*REGSZ_FP)(a0)
-#endif
-#endif /* !SOFTFLOAT */
-	bne	a1, zero, 1f
-	 nop
-	li	a1, 1			# never return 0!
-1:
-	j	ra
-	 move	v0, a1
-
-botch:
-	jal	longjmperror
-	nop
-	jal	abort
-	nop
-	RESTORE_GP64
-	PTR_ADDU sp, FRAMESZ
-END(_longjmp)

libc/arch-mips64/bionic/atexit.h

@@ -1,36 +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.
- */
-
-extern void *__dso_handle;
-extern int __cxa_atexit(void (*func)(void *), void *arg, void *dso);
-
-__attribute__ ((visibility ("hidden")))
-int atexit(void (*func)(void))
-{
-  return (__cxa_atexit((void (*)(void *))func, (void *)0, &__dso_handle));
-}