DO NOT MERGE ANYWHERE - bionic: resolver: exclude a range of ports from random_bind in DNS

Add a new API to set a range of ports which the DNS resolver should
never try to bind

Bug: 20127213
Change-Id: Ie3fca0ec2ee2523625816edd9417a0b5d5f91614

ABI-bugs.txt

@@ -0,0 +1,12 @@
+KNOWN ABI BUGS
+--------------
+
+  time_t is 32-bit. http://b/5819737
+
+  off_t is 32-bit. There is off64_t, but no _FILE_OFFSET_BITS support.
+
+  sigset_t is too small on ARM and x86 (but correct on MIPS), so support
+  for real-time signals is broken. http://b/5828899
+
+  atexit(3) handlers registered by a shared library aren't called on
+  dlclose(3); this only affects ARM. http://b/4998315

CPPLINT.cfg

@@ -1,2 +0,0 @@
-set noparent
-filter=-build/header_guard,-runtime/int,-readability/function

HACKING.txt

@@ -4,52 +4,40 @@ Working on bionic
 What are the big pieces of bionic?
 ----------------------------------
 
-#### libc/ --- libc.so, libc.a
+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.
 
-The C library. Stuff like `fopen(3)` and `kill(2)`.
+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).
 
-#### 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
-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).
-
-#### 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.
+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.
 
 
 What's in libc/?
 ----------------
 
-<pre>
 libc/
   arch-arm/
   arch-arm64/
@@ -133,7 +121,6 @@ libc/
   zoneinfo/
     # Android-format time zone data.
     # See 'Updating tzdata' later.
-</pre>
 
 
 Adding system calls
@@ -173,101 +160,3 @@ 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
-    $ mm bionic-unit-tests-run-on-host32
-    $ mm bionic-unit-tests-run-on-host64  # For 64-bit *targets* only.
-
-### 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. The executables are already in your path.
-
-    $ mma
-    $ bionic-unit-tests-glibc32
-    $ 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`.
-
-
-LP32 ABI bugs
--------------
-
-This probably belongs in the NDK documentation rather than here, but these
-are the known ABI bugs in LP32:
-
- * `time_t` is 32-bit. <http://b/5819737>
-
- * `off_t` is 32-bit. There is `off64_t`, but no `_FILE_OFFSET_BITS` support.
-   Many of the `off64_t` functions are missing in older releases, and
-   stdio uses 32-bit offsets, so there's no way to fully implement
-   `_FILE_OFFSET_BITS`.
-
- * `sigset_t` is too small on ARM and x86 (but correct on MIPS), so support
-   for real-time signals is broken. <http://b/5828899>

benchmarks/Android.mk

@@ -14,56 +14,23 @@
 # limitations under the License.
 #
 
+ifneq ($(BUILD_TINY_ANDROID), true)
+
 LOCAL_PATH := $(call my-dir)
 
-# -----------------------------------------------------------------------------
-# Benchmarks library, usable by projects outside this directory.
-# -----------------------------------------------------------------------------
-
-benchmark_cflags := \
-    -O2 \
-    -fno-builtin \
-    -Wall \
-    -Wextra \
-    -Werror \
-    -Wunused \
-
-benchmark_cppflags := \
-    -std=gnu++11 \
-
-benchmarklib_src_files := \
-    Benchmark.cpp \
-    utils.cpp \
-    main.cpp \
-
-include $(CLEAR_VARS)
-LOCAL_MODULE := libbenchmark
-LOCAL_CFLAGS := $(benchmark_cflags)
-LOCAL_CPPFLAGS := $(benchmark_cppflags)
-LOCAL_SRC_FILES := $(benchmarklib_src_files)
-LOCAL_C_INCLUDES := $(benchmark_c_includes)
-LOCAL_STATIC_LIBRARIES := libbase
-include $(BUILD_STATIC_LIBRARY)
-
-# Only supported on linux systems.
-ifeq ($(HOST_OS),linux)
-
-include $(CLEAR_VARS)
-LOCAL_MODULE := libbenchmark
-LOCAL_CFLAGS := $(benchmark_cflags)
-LOCAL_CPPFLAGS := $(benchmark_cppflags)
-LOCAL_SRC_FILES := $(benchmarklib_src_files)
-LOCAL_C_INCLUDES := $(benchmark_c_includes)
-LOCAL_MULTILIB := both
-LOCAL_STATIC_LIBRARIES := libbase
-include $(BUILD_HOST_STATIC_LIBRARY)
-
-endif
-
 # -----------------------------------------------------------------------------
 # Benchmarks.
 # -----------------------------------------------------------------------------
-benchmark_src_files := \
+
+benchmark_c_flags = \
+    -O2 \
+    -Wall -Wextra -Wunused \
+    -Werror \
+    -fno-builtin \
+    -std=gnu++11 \
+
+benchmark_src_files = \
+    benchmark_main.cpp \
     math_benchmark.cpp \
     property_benchmark.cpp \
     pthread_benchmark.cpp \
@@ -74,58 +41,40 @@ benchmark_src_files := \
     unistd_benchmark.cpp \
 
 # Build benchmarks for the device (with bionic's .so). Run with:
-#   adb shell bionic-benchmarks32
-#   adb shell bionic-benchmarks64
+#   adb shell bionic-benchmarks
 include $(CLEAR_VARS)
 LOCAL_MODULE := bionic-benchmarks
 LOCAL_MODULE_STEM_32 := bionic-benchmarks32
 LOCAL_MODULE_STEM_64 := bionic-benchmarks64
 LOCAL_MULTILIB := both
-LOCAL_CFLAGS := $(benchmark_cflags)
-LOCAL_CPPFLAGS := $(benchmark_cppflags)
+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_STATIC_LIBRARIES := libbenchmark libbase
 include $(BUILD_EXECUTABLE)
 
-# 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.
-
-# Only supported on linux systems.
-ifeq ($(HOST_OS),linux)
-
-# 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_CFLAGS := $(benchmark_cflags)
-LOCAL_CPPFLAGS := $(benchmark_cppflags)
-LOCAL_LDFLAGS := -lrt
-LOCAL_SRC_FILES := $(benchmark_src_files)
-LOCAL_STATIC_LIBRARIES := libbenchmark libbase
-include $(BUILD_HOST_EXECUTABLE)
-
-endif
-
 ifeq ($(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),x86)
+LINKER = linker
+NATIVE_SUFFIX=32
+else
+LINKER = linker64
+NATIVE_SUFFIX=64
+endif
 
-ifeq ($(TARGET_ARCH),$(filter $(TARGET_ARCH),x86 x86_64))
-bionic-benchmarks-run-on-host32: bionic-benchmarks bionic-prepare-run-on-host
+bionic-benchmarks-run-on-host: bionic-benchmarks $(TARGET_OUT_EXECUTABLES)/$(LINKER) $(TARGET_OUT_EXECUTABLES)/sh
+	if [ ! -d /system -o ! -d /system/bin ]; then \
+	  echo "Attempting to create /system/bin"; \
+	  sudo mkdir -p -m 0777 /system/bin; \
+	fi
+	mkdir -p $(TARGET_OUT_DATA)/local/tmp
+	cp $(TARGET_OUT_EXECUTABLES)/$(LINKER) /system/bin
+	cp $(TARGET_OUT_EXECUTABLES)/sh /system/bin
 	ANDROID_DATA=$(TARGET_OUT_DATA) \
 	ANDROID_ROOT=$(TARGET_OUT) \
-		$(TARGET_OUT_EXECUTABLES)/bionic-benchmarks32 $(BIONIC_BENCHMARKS_FLAGS)
-endif
+	LD_LIBRARY_PATH=$(TARGET_OUT_SHARED_LIBRARIES) \
+		$(TARGET_OUT_EXECUTABLES)/bionic-benchmarks$(NATIVE_SUFFIX) $(BIONIC_BENCHMARKS_FLAGS)
+endif # linux-x86
 
-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.cpp

@@ -1,159 +0,0 @@
-/*
- * Copyright (C) 2012 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 <inttypes.h>
-#include <regex.h>
-#include <stdio.h>
-#include <stdint.h>
-#include <stdlib.h>
-#include <time.h>
-
-#include <string>
-#include <vector>
-
-#include <base/stringprintf.h>
-
-#include <benchmark/Benchmark.h>
-
-#include "utils.h"
-
-namespace testing {
-
-static uint64_t NanoTime() {
-  struct timespec t;
-  t.tv_sec = t.tv_nsec = 0;
-  clock_gettime(CLOCK_MONOTONIC, &t);
-  return static_cast<uint64_t>(t.tv_sec) * 1000000000LL + t.tv_nsec;
-}
-
-bool Benchmark::header_printed_;
-
-std::vector<Benchmark*>& Benchmark::List() {
-  static std::vector<Benchmark*> list;
-  return list;
-}
-
-int Benchmark::MaxNameColumnWidth() {
-  size_t max = 20;
-  for (auto& benchmark : List()) {
-    max = std::max(max, benchmark->NameColumnWidth());
-  }
-  return static_cast<int>(max);
-}
-
-size_t Benchmark::RunAll(std::vector<regex_t*>& regs) {
-  size_t benchmarks_run = 0;
-  header_printed_ = false;
-  for (auto& benchmark : List()) {
-    benchmarks_run += benchmark->RunAllArgs(regs);
-  }
-  return benchmarks_run;
-}
-
-void Benchmark::PrintHeader() {
-  if (!header_printed_) {
-    printf("%-*s %10s %10s\n", MaxNameColumnWidth(), "", "iterations", "ns/op");
-    header_printed_ = true;
-  }
-}
-
-template <typename T>
-bool BenchmarkT<T>::ShouldRun(std::vector<regex_t*>& regs, T arg) {
-  if (regs.empty()) {
-    return true;
-  }
-
-  for (const auto& re : regs) {
-    if (regexec(re, GetNameStr(arg).c_str(), 0, NULL, 0) != REG_NOMATCH) {
-      return true;
-    }
-  }
-  return false;
-}
-
-void Benchmark::StopBenchmarkTiming() {
-  if (start_time_ns_ != 0) {
-    total_time_ns_ += NanoTime() - start_time_ns_;
-  }
-  start_time_ns_ = 0;
-}
-
-void Benchmark::StartBenchmarkTiming() {
-  if (start_time_ns_ == 0) {
-    start_time_ns_ = NanoTime();
-  }
-}
-
-std::string BenchmarkWithoutArg::GetNameStr(void*) {
-  return Name();
-}
-
-template <>
-std::string BenchmarkWithArg<int>::GetNameStr(int arg) {
-  return Name() + "/" + PrettyInt(arg, 2);
-}
-
-template <>
-std::string BenchmarkWithArg<double>::GetNameStr(double arg) {
-  return Name() + "/" + android::base::StringPrintf("%0.6f", arg);
-}
-
-template<typename T>
-void BenchmarkT<T>::RunWithArg(T arg) {
-  int new_iterations = 1;
-  int iterations;
-  while (new_iterations < 1e8) {
-    bytes_processed_ = 0;
-    total_time_ns_ = 0;
-    start_time_ns_ = 0;
-
-    iterations = new_iterations;
-    RunIterations(iterations, arg);
-    if (total_time_ns_ >= 1e9) {
-      break;
-    }
-
-    if (total_time_ns_/iterations == 0) {
-      new_iterations = 1e9;
-    } else {
-      new_iterations = 1e9/ (total_time_ns_/iterations);
-    }
-    new_iterations = std::max(iterations + 1,
-                          std::min(new_iterations + new_iterations/2, 100*iterations));
-
-    new_iterations = Round(new_iterations);
-  }
-
-  printf("%-*s %10s %10" PRId64, MaxNameColumnWidth(), GetNameStr(arg).c_str(),
-         PrettyInt(iterations, 10).c_str(), total_time_ns_/iterations);
-
-  if (total_time_ns_ > 0 && bytes_processed_ > 0) {
-    double gib_processed = static_cast<double>(bytes_processed_)/1e9;
-    double seconds = static_cast<double>(total_time_ns_)/1e9;
-    printf(" %8.3f GiB/s", gib_processed/seconds);
-  }
-  printf("\n");
-  fflush(stdout);
-}
-
-template class BenchmarkT<int>;
-template class BenchmarkT<double>;
-template class BenchmarkT<void*>;
-
-template class BenchmarkWithArg<int>;
-template class BenchmarkWithArg<double>;
-
-}  // namespace testing

benchmarks/benchmark.h

@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2012 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 <stdint.h>
+
+#include <vector>
+
+namespace testing {
+
+class Benchmark {
+ public:
+  Benchmark(const char* name, void (*fn)(int)) {
+    Register(name, fn, NULL);
+  }
+
+  Benchmark(const char* name, void (*fn_range)(int, int)) {
+    Register(name, NULL, fn_range);
+  }
+
+  Benchmark* Arg(int x);
+
+  const char* Name();
+
+  bool ShouldRun(int argc, char* argv[]);
+  void Run();
+
+ private:
+  const char* name_;
+
+  void (*fn_)(int);
+  void (*fn_range_)(int, int);
+
+  std::vector<int> args_;
+
+  void Register(const char* name, void (*fn)(int), void (*fn_range)(int, int));
+  void RunRepeatedlyWithArg(int iterations, int arg);
+  void RunWithArg(int arg);
+};
+
+}  // namespace testing
+
+void SetBenchmarkBytesProcessed(int64_t);
+void StopBenchmarkTiming();
+void StartBenchmarkTiming();
+
+#define BENCHMARK(f) \
+    static ::testing::Benchmark* _benchmark_##f __attribute__((unused)) = \
+        (new ::testing::Benchmark(#f, f))

benchmarks/benchmark/Benchmark.h

@@ -1,169 +0,0 @@
-/*
- * Copyright (C) 2012 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.
- */
-
-#ifndef BENCHMARKS_BENCHMARK_H_
-#define BENCHMARKS_BENCHMARK_H_
-
-#include <regex.h>
-#include <stdint.h>
-
-#include <string>
-#include <vector>
-
-namespace testing {
-
-class Benchmark {
-public:
-  Benchmark() {
-    List().push_back(this);
-  }
-  virtual ~Benchmark() {}
-
-  virtual std::string Name() = 0;
-
-  virtual size_t RunAllArgs(std::vector<regex_t*>&) = 0;
-
-  void SetBenchmarkBytesProcessed(uint64_t bytes) { bytes_processed_ += bytes; }
-  void StopBenchmarkTiming();
-  void StartBenchmarkTiming();
-
-  // Run all of the benchmarks that have registered.
-  static size_t RunAll(std::vector<regex_t*>&);
-
-  static std::vector<Benchmark*>& List();
-
-  static int MaxNameColumnWidth();
-
-protected:
-  virtual size_t NameColumnWidth() = 0;
-
-  uint64_t bytes_processed_;
-  uint64_t total_time_ns_;
-  uint64_t start_time_ns_;
-
-  static bool header_printed_;
-
-  static void PrintHeader();
-};
-
-template <typename T>
-class BenchmarkT : public Benchmark {
-public:
-  BenchmarkT() {}
-  virtual ~BenchmarkT() {}
-
-protected:
-  bool ShouldRun(std::vector<regex_t*>&, T arg);
-  void RunWithArg(T arg);
-  virtual void RunIterations(int, T) = 0;
-  virtual std::string GetNameStr(T) = 0;
-};
-
-class BenchmarkWithoutArg : public BenchmarkT<void*> {
-public:
-  BenchmarkWithoutArg() {}
-  virtual ~BenchmarkWithoutArg() {}
-
-protected:
-  virtual size_t RunAllArgs(std::vector<regex_t*>& regs) override {
-    size_t benchmarks_run = 0;
-    if (BenchmarkT<void*>::ShouldRun(regs, nullptr)) {
-      PrintHeader();
-      RunWithArg(nullptr);
-      benchmarks_run++;
-    }
-    return benchmarks_run;
-  }
-
-  virtual void RunIterations(int iters, void*) override {
-    Run(iters);
-  }
-
-  virtual void Run(int) = 0;
-
-  virtual size_t NameColumnWidth() override {
-    return Name().size();
-  }
-
-  virtual std::string GetNameStr(void *) override;
-};
-
-template<typename T>
-class BenchmarkWithArg : public BenchmarkT<T> {
-public:
-  BenchmarkWithArg() {}
-  virtual ~BenchmarkWithArg() {}
-
-  BenchmarkWithArg* Arg(T arg) {
-    args_.push_back(arg);
-    return this;
-  }
-
-protected:
-  virtual size_t NameColumnWidth() override {
-    size_t max = 0;
-    for (const auto& arg : args_) {
-      max = std::max(max, GetNameStr(arg).size());
-    }
-    return max;
-  }
-
-  std::string GetNameStr(T arg) override;
-
-  virtual size_t RunAllArgs(std::vector<regex_t*>& regs) override {
-    size_t benchmarks_run = 0;
-    for (T& arg : args_) {
-      if (BenchmarkT<T>::ShouldRun(regs, arg)) {
-        Benchmark::PrintHeader();
-        BenchmarkT<T>::RunWithArg(arg);
-        benchmarks_run++;
-      }
-    }
-    return benchmarks_run;
-  }
-
-  virtual void RunIterations(int iters, T arg) override {
-    Run(iters, arg);
-  }
-
-  virtual void Run(int iters, T arg) = 0;
-
-private:
-  std::vector<T> args_;
-};
-
-}  // namespace testing
-
-#define BENCHMARK_START(f, super_class) \
-  class f : public super_class { \
-  public: \
-    f() {} \
-    virtual ~f() {} \
-    virtual std::string Name() override { return #f; } \
-
-#define BENCHMARK_NO_ARG(f) \
-  BENCHMARK_START(f, ::testing::BenchmarkWithoutArg) \
-    virtual void Run(int) override; \
-  }; \
-  static ::testing::Benchmark* __benchmark_##f = new f()
-
-#define BENCHMARK_WITH_ARG(f, arg_type) \
-  BENCHMARK_START(f, ::testing::BenchmarkWithArg<arg_type>) \
-    virtual void Run(int, arg_type) override; \
-  }; \
-  static ::testing::BenchmarkWithArg<arg_type>* __benchmark_##f = (new f())
-
-#endif  // BENCHMARKS_BENCHMARK_H_

benchmarks/benchmark_main.cpp

@@ -0,0 +1,226 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "benchmark.h"
+
+#include <regex.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <string>
+#include <map>
+
+#include <inttypes.h>
+
+static int64_t g_bytes_processed;
+static int64_t g_benchmark_total_time_ns;
+static int64_t g_benchmark_start_time_ns;
+
+typedef std::map<std::string, ::testing::Benchmark*> BenchmarkMap;
+typedef BenchmarkMap::iterator BenchmarkMapIt;
+static BenchmarkMap g_benchmarks;
+static int g_name_column_width = 20;
+
+static int Round(int n) {
+  int base = 1;
+  while (base*10 < n) {
+    base *= 10;
+  }
+  if (n < 2*base) {
+    return 2*base;
+  }
+  if (n < 5*base) {
+    return 5*base;
+  }
+  return 10*base;
+}
+
+static int64_t NanoTime() {
+  struct timespec t;
+  t.tv_sec = t.tv_nsec = 0;
+  clock_gettime(CLOCK_MONOTONIC, &t);
+  return static_cast<int64_t>(t.tv_sec) * 1000000000LL + t.tv_nsec;
+}
+
+namespace testing {
+
+Benchmark* Benchmark::Arg(int arg) {
+  args_.push_back(arg);
+  return this;
+}
+
+const char* Benchmark::Name() {
+  return name_;
+}
+
+bool Benchmark::ShouldRun(int argc, char* argv[]) {
+  if (argc == 1) {
+    return true;  // With no arguments, we run all benchmarks.
+  }
+  // Otherwise, we interpret each argument as a regular expression and
+  // see if any of our benchmarks match.
+  for (int i = 1; i < argc; i++) {
+    regex_t re;
+    if (regcomp(&re, argv[i], 0) != 0) {
+      fprintf(stderr, "couldn't compile \"%s\" as a regular expression!\n", argv[i]);
+      exit(EXIT_FAILURE);
+    }
+    int match = regexec(&re, name_, 0, NULL, 0);
+    regfree(&re);
+    if (match != REG_NOMATCH) {
+      return true;
+    }
+  }
+  return false;
+}
+
+void Benchmark::Register(const char* name, void (*fn)(int), void (*fn_range)(int, int)) {
+  name_ = name;
+  fn_ = fn;
+  fn_range_ = fn_range;
+
+  if (fn_ == NULL && fn_range_ == NULL) {
+    fprintf(stderr, "%s: missing function\n", name_);
+    exit(EXIT_FAILURE);
+  }
+
+  g_benchmarks.insert(std::make_pair(name, this));
+}
+
+void Benchmark::Run() {
+  if (fn_ != NULL) {
+    RunWithArg(0);
+  } else {
+    if (args_.empty()) {
+      fprintf(stderr, "%s: no args!\n", name_);
+      exit(EXIT_FAILURE);
+    }
+    for (size_t i = 0; i < args_.size(); ++i) {
+      RunWithArg(args_[i]);
+    }
+  }
+}
+
+void Benchmark::RunRepeatedlyWithArg(int iterations, int arg) {
+  g_bytes_processed = 0;
+  g_benchmark_total_time_ns = 0;
+  g_benchmark_start_time_ns = NanoTime();
+  if (fn_ != NULL) {
+    fn_(iterations);
+  } else {
+    fn_range_(iterations, arg);
+  }
+  if (g_benchmark_start_time_ns != 0) {
+    g_benchmark_total_time_ns += NanoTime() - g_benchmark_start_time_ns;
+  }
+}
+
+void Benchmark::RunWithArg(int arg) {
+  // run once in case it's expensive
+  int iterations = 1;
+  RunRepeatedlyWithArg(iterations, arg);
+  while (g_benchmark_total_time_ns < 1e9 && iterations < 1e9) {
+    int last = iterations;
+    if (g_benchmark_total_time_ns/iterations == 0) {
+      iterations = 1e9;
+    } else {
+      iterations = 1e9 / (g_benchmark_total_time_ns/iterations);
+    }
+    iterations = std::max(last + 1, std::min(iterations + iterations/2, 100*last));
+    iterations = Round(iterations);
+    RunRepeatedlyWithArg(iterations, arg);
+  }
+
+  char throughput[100];
+  throughput[0] = '\0';
+  if (g_benchmark_total_time_ns > 0 && g_bytes_processed > 0) {
+    double mib_processed = static_cast<double>(g_bytes_processed)/1e6;
+    double seconds = static_cast<double>(g_benchmark_total_time_ns)/1e9;
+    snprintf(throughput, sizeof(throughput), " %8.2f MiB/s", mib_processed/seconds);
+  }
+
+  char full_name[100];
+  if (fn_range_ != NULL) {
+    if (arg >= (1<<20)) {
+      snprintf(full_name, sizeof(full_name), "%s/%dM", name_, arg/(1<<20));
+    } else if (arg >= (1<<10)) {
+      snprintf(full_name, sizeof(full_name), "%s/%dK", name_, arg/(1<<10));
+    } else {
+      snprintf(full_name, sizeof(full_name), "%s/%d", name_, arg);
+    }
+  } else {
+    snprintf(full_name, sizeof(full_name), "%s", name_);
+  }
+
+  printf("%-*s %10d %10" PRId64 "%s\n", g_name_column_width, full_name,
+         iterations, g_benchmark_total_time_ns/iterations, throughput);
+  fflush(stdout);
+}
+
+}  // namespace testing
+
+void SetBenchmarkBytesProcessed(int64_t x) {
+  g_bytes_processed = x;
+}
+
+void StopBenchmarkTiming() {
+  if (g_benchmark_start_time_ns != 0) {
+    g_benchmark_total_time_ns += NanoTime() - g_benchmark_start_time_ns;
+  }
+  g_benchmark_start_time_ns = 0;
+}
+
+void StartBenchmarkTiming() {
+  if (g_benchmark_start_time_ns == 0) {
+    g_benchmark_start_time_ns = NanoTime();
+  }
+}
+
+int main(int argc, char* argv[]) {
+  if (g_benchmarks.empty()) {
+    fprintf(stderr, "No benchmarks registered!\n");
+    exit(EXIT_FAILURE);
+  }
+
+  for (BenchmarkMapIt it = g_benchmarks.begin(); it != g_benchmarks.end(); ++it) {
+    int name_width = static_cast<int>(strlen(it->second->Name()));
+    g_name_column_width = std::max(g_name_column_width, name_width);
+  }
+
+  bool need_header = true;
+  for (BenchmarkMapIt it = g_benchmarks.begin(); it != g_benchmarks.end(); ++it) {
+    ::testing::Benchmark* b = it->second;
+    if (b->ShouldRun(argc, argv)) {
+      if (need_header) {
+        printf("%-*s %10s %10s\n", g_name_column_width, "", "iterations", "ns/op");
+        fflush(stdout);
+        need_header = false;
+      }
+      b->Run();
+    }
+  }
+
+  if (need_header) {
+    fprintf(stderr, "No matching benchmarks!\n");
+    fprintf(stderr, "Available benchmarks:\n");
+    for (BenchmarkMapIt it = g_benchmarks.begin(); it != g_benchmarks.end(); ++it) {
+      fprintf(stderr, "  %s\n", it->second->Name());
+    }
+    exit(EXIT_FAILURE);
+  }
+
+  return 0;
+}

benchmarks/main.cpp

@@ -1,61 +0,0 @@
-/*
- * Copyright (C) 2012 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 <regex.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-#include <vector>
-
-#include <benchmark/Benchmark.h>
-
-int main(int argc, char* argv[]) {
-  if (::testing::Benchmark::List().empty()) {
-    fprintf(stderr, "No benchmarks registered!\n");
-    exit(EXIT_FAILURE);
-  }
-
-  std::vector<regex_t*> regs;
-  for (int i = 1; i < argc; i++) {
-    regex_t* re = new regex_t;
-    int errcode = regcomp(re, argv[i], 0);
-    if (errcode != 0) {
-      size_t errbuf_size = regerror(errcode, re, NULL, 0);
-      if (errbuf_size > 0) {
-        char* errbuf = new char[errbuf_size];
-        regerror(errcode, re, errbuf, errbuf_size);
-        fprintf(stderr, "Couldn't compile \"%s\" as a regular expression: %s\n",
-                argv[i], errbuf);
-      } else {
-        fprintf(stderr, "Unknown compile error for \"%s\" as a regular expression!\n", argv[i]);
-      }
-      exit(EXIT_FAILURE);
-    }
-    regs.push_back(re);
-  }
-
-  if (::testing::Benchmark::RunAll(regs) == 0) {
-    fprintf(stderr, "No matching benchmarks!\n");
-    fprintf(stderr, "Available benchmarks:\n");
-    for (const auto& benchmark : ::testing::Benchmark::List()) {
-      fprintf(stderr, "  %s\n", benchmark->Name().c_str());
-    }
-    exit(EXIT_FAILURE);
-  }
-
-  return 0;
-}

benchmarks/math_benchmark.cpp

@@ -14,20 +14,16 @@
  * limitations under the License.
  */
 
+#include "benchmark.h"
+
 #include <fenv.h>
 #include <math.h>
 
-#include <benchmark/Benchmark.h>
-
-#define AT_COMMON_VALS \
-    Arg(1234.0)->Arg(nan(""))->Arg(HUGE_VAL)->Arg(0.0)
-
 // Avoid optimization.
-volatile double d;
-volatile double v;
+double d;
+double v;
 
-BENCHMARK_NO_ARG(BM_math_sqrt);
-void BM_math_sqrt::Run(int iters) {
+static void BM_math_sqrt(int iters) {
   StartBenchmarkTiming();
 
   d = 0.0;
@@ -38,9 +34,9 @@ void BM_math_sqrt::Run(int iters) {
 
   StopBenchmarkTiming();
 }
+BENCHMARK(BM_math_sqrt);
 
-BENCHMARK_NO_ARG(BM_math_log10);
-void BM_math_log10::Run(int iters) {
+static void BM_math_log10(int iters) {
   StartBenchmarkTiming();
 
   d = 0.0;
@@ -51,9 +47,9 @@ void BM_math_log10::Run(int iters) {
 
   StopBenchmarkTiming();
 }
+BENCHMARK(BM_math_log10);
 
-BENCHMARK_NO_ARG(BM_math_logb);
-void BM_math_logb::Run(int iters) {
+static void BM_math_logb(int iters) {
   StartBenchmarkTiming();
 
   d = 0.0;
@@ -64,22 +60,61 @@ void BM_math_logb::Run(int iters) {
 
   StopBenchmarkTiming();
 }
+BENCHMARK(BM_math_logb);
 
-BENCHMARK_WITH_ARG(BM_math_isinf, double)->AT_COMMON_VALS;
-void BM_math_isinf::Run(int iters, double value) {
+static void BM_math_isinf_NORMAL(int iters) {
   StartBenchmarkTiming();
 
   d = 0.0;
-  v = value;
+  v = 1234.0; // FP_NORMAL
   for (int i = 0; i < iters; ++i) {
     d += (isinf)(v);
   }
 
   StopBenchmarkTiming();
 }
+BENCHMARK(BM_math_isinf_NORMAL);
 
-BENCHMARK_NO_ARG(BM_math_sin_fast);
-void BM_math_sin_fast::Run(int iters) {
+static void BM_math_isinf_NAN(int iters) {
+  StartBenchmarkTiming();
+
+  d = 0.0;
+  v = nan(""); // FP_NAN
+  for (int i = 0; i < iters; ++i) {
+    d += (isinf)(v);
+  }
+
+  StopBenchmarkTiming();
+}
+BENCHMARK(BM_math_isinf_NAN);
+
+static void BM_math_isinf_INFINITE(int iters) {
+  StartBenchmarkTiming();
+
+  d = 0.0;
+  v = HUGE_VAL; // FP_INFINITE
+  for (int i = 0; i < iters; ++i) {
+    d += (isinf)(v);
+  }
+
+  StopBenchmarkTiming();
+}
+BENCHMARK(BM_math_isinf_INFINITE);
+
+static void BM_math_isinf_ZERO(int iters) {
+  StartBenchmarkTiming();
+
+  d = 0.0;
+  v = 0.0; // FP_ZERO
+  for (int i = 0; i < iters; ++i) {
+    d += (isinf)(v);
+  }
+
+  StopBenchmarkTiming();
+}
+BENCHMARK(BM_math_isinf_ZERO);
+
+static void BM_math_sin_fast(int iters) {
   StartBenchmarkTiming();
 
   d = 1.0;
@@ -89,9 +124,9 @@ void BM_math_sin_fast::Run(int iters) {
 
   StopBenchmarkTiming();
 }
+BENCHMARK(BM_math_sin_fast);
 
-BENCHMARK_NO_ARG(BM_math_sin_feupdateenv);
-void BM_math_sin_feupdateenv::Run(int iters) {
+static void BM_math_sin_feupdateenv(int iters) {
   StartBenchmarkTiming();
 
   d = 1.0;
@@ -105,9 +140,9 @@ void BM_math_sin_feupdateenv::Run(int iters) {
 
   StopBenchmarkTiming();
 }
+BENCHMARK(BM_math_sin_feupdateenv);
 
-BENCHMARK_NO_ARG(BM_math_sin_fesetenv);
-void BM_math_sin_fesetenv::Run(int iters) {
+static void BM_math_sin_fesetenv(int iters) {
   StartBenchmarkTiming();
 
   d = 1.0;
@@ -121,16 +156,56 @@ void BM_math_sin_fesetenv::Run(int iters) {
 
   StopBenchmarkTiming();
 }
+BENCHMARK(BM_math_sin_fesetenv);
 
-BENCHMARK_WITH_ARG(BM_math_fpclassify, double)->AT_COMMON_VALS;
-void BM_math_fpclassify::Run(int iters, double value) {
+static void BM_math_fpclassify_NORMAL(int iters) {
   StartBenchmarkTiming();
 
   d = 0.0;
-  v = value;
+  v = 1234.0; // FP_NORMAL
   for (int i = 0; i < iters; ++i) {
     d += fpclassify(v);
   }
 
   StopBenchmarkTiming();
 }
+BENCHMARK(BM_math_fpclassify_NORMAL);
+
+static void BM_math_fpclassify_NAN(int iters) {
+  StartBenchmarkTiming();
+
+  d = 0.0;
+  v = nan(""); // FP_NAN
+  for (int i = 0; i < iters; ++i) {
+    d += fpclassify(v);
+  }
+
+  StopBenchmarkTiming();
+}
+BENCHMARK(BM_math_fpclassify_NAN);
+
+static void BM_math_fpclassify_INFINITE(int iters) {
+  StartBenchmarkTiming();
+
+  d = 0.0;
+  v = HUGE_VAL; // FP_INFINITE
+  for (int i = 0; i < iters; ++i) {
+    d += fpclassify(v);
+  }
+
+  StopBenchmarkTiming();
+}
+BENCHMARK(BM_math_fpclassify_INFINITE);
+
+static void BM_math_fpclassify_ZERO(int iters) {
+  StartBenchmarkTiming();
+
+  d = 0.0;
+  v = 0.0; // FP_ZERO
+  for (int i = 0; i < iters; ++i) {
+    d += fpclassify(v);
+  }
+
+  StopBenchmarkTiming();
+}
+BENCHMARK(BM_math_fpclassify_ZERO);

benchmarks/property_benchmark.cpp

@@ -14,21 +14,19 @@
  * limitations under the License.
  */
 
+#include "benchmark.h"
 #include <errno.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
 
-#include <string>
-
-#if defined(__BIONIC__)
-
 #define _REALLY_INCLUDE_SYS__SYSTEM_PROPERTIES_H_
 #include <sys/_system_properties.h>
 
-#include <benchmark/Benchmark.h>
+#include <vector>
+#include <string>
 
-extern void* __system_property_area__;
+extern void *__system_property_area__;
 
 // Do not exceed 512, that is about the largest number of properties
 // that can be created with the current property area size.
@@ -36,198 +34,200 @@ extern void* __system_property_area__;
     Arg(1)->Arg(4)->Arg(16)->Arg(64)->Arg(128)->Arg(256)->Arg(512)
 
 struct LocalPropertyTestState {
-  LocalPropertyTestState(int nprops) : nprops(nprops), valid(false) {
-    static const char prop_name_chars[] = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-_.";
+    LocalPropertyTestState(int nprops) : nprops(nprops), valid(false) {
+        static const char prop_name_chars[] = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-_.";
 
-    const char* android_data = getenv("ANDROID_DATA");
-    if (android_data == NULL) {
-      printf("ANDROID_DATA environment variable not set\n");
-      return;
-    }
-    char dir_template[PATH_MAX];
-    snprintf(dir_template, sizeof(dir_template), "%s/local/tmp/prop-XXXXXX", android_data);
-    char* dirname = mkdtemp(dir_template);
-    if (!dirname) {
-      printf("making temp file for test state failed (is %s/local/tmp writable?): %s\n",
-             android_data, strerror(errno));
-      return;
-    }
-
-    old_pa = __system_property_area__;
-    __system_property_area__ = NULL;
-
-    pa_dirname = dirname;
-    pa_filename = pa_dirname + "/__properties__";
-
-    __system_property_set_filename(pa_filename.c_str());
-    __system_property_area_init();
-
-    names = new char* [nprops];
-    name_lens = new int[nprops];
-    values = new char* [nprops];
-    value_lens = new int[nprops];
-
-    srandom(nprops);
-
-    for (int i = 0; i < nprops; i++) {
-      // Make sure the name has at least 10 characters to make
-      // it very unlikely to generate the same random name.
-      name_lens[i] = (random() % (PROP_NAME_MAX - 10)) + 10;
-      names[i] = new char[PROP_NAME_MAX + 1];
-      size_t prop_name_len = sizeof(prop_name_chars) - 1;
-      for (int j = 0; j < name_lens[i]; j++) {
-        if (j == 0 || names[i][j-1] == '.' || j == name_lens[i] - 1) {
-          // Certain values are not allowed:
-          // - Don't start name with '.'
-          // - Don't allow '.' to appear twice in a row
-          // - Don't allow the name to end with '.'
-          // This assumes that '.' is the last character in the
-          // array so that decrementing the length by one removes
-          // the value from the possible values.
-          prop_name_len--;
+        const char* android_data = getenv("ANDROID_DATA");
+        if (android_data == NULL) {
+          printf("ANDROID_DATA environment variable not set\n");
+          return;
+        }
+        char dir_template[PATH_MAX];
+        snprintf(dir_template, sizeof(dir_template), "%s/local/tmp/prop-XXXXXX", android_data);
+        char *dirname = mkdtemp(dir_template);
+        if (!dirname) {
+            printf("making temp file for test state failed (is %s/local/tmp writable?): %s\n",
+                   android_data, strerror(errno));
+            return;
         }
-        names[i][j] = prop_name_chars[random() % prop_name_len];
-      }
-      names[i][name_lens[i]] = 0;
 
-      // Make sure the value contains at least 1 character.
-      value_lens[i] = (random() % (PROP_VALUE_MAX - 1)) + 1;
-      values[i] = new char[PROP_VALUE_MAX];
-      for (int j = 0; j < value_lens[i]; j++) {
-        values[i][j] = prop_name_chars[random() % (sizeof(prop_name_chars) - 1)];
-      }
+        old_pa = __system_property_area__;
+        __system_property_area__ = NULL;
 
-      if (__system_property_add(names[i], name_lens[i], values[i], value_lens[i]) < 0) {
-        printf("Failed to add a property, terminating...\n");
-        printf("%s = %.*s\n", names[i], value_lens[i], values[i]);
-        exit(1);
-      }
+        pa_dirname = dirname;
+        pa_filename = pa_dirname + "/__properties__";
+
+        __system_property_set_filename(pa_filename.c_str());
+        __system_property_area_init();
+
+        names = new char* [nprops];
+        name_lens = new int[nprops];
+        values = new char* [nprops];
+        value_lens = new int[nprops];
+
+        srandom(nprops);
+
+        for (int i = 0; i < nprops; i++) {
+            // Make sure the name has at least 10 characters to make
+            // it very unlikely to generate the same random name.
+            name_lens[i] = (random() % (PROP_NAME_MAX - 10)) + 10;
+            names[i] = new char[PROP_NAME_MAX + 1];
+            size_t prop_name_len = sizeof(prop_name_chars) - 1;
+            for (int j = 0; j < name_lens[i]; j++) {
+                if (j == 0 || names[i][j-1] == '.' || j == name_lens[i] - 1) {
+                    // Certain values are not allowed:
+                    // - Don't start name with '.'
+                    // - Don't allow '.' to appear twice in a row
+                    // - Don't allow the name to end with '.'
+                    // This assumes that '.' is the last character in the
+                    // array so that decrementing the length by one removes
+                    // the value from the possible values.
+                    prop_name_len--;
+                }
+                names[i][j] = prop_name_chars[random() % prop_name_len];
+            }
+            names[i][name_lens[i]] = 0;
+
+            // Make sure the value contains at least 1 character.
+            value_lens[i] = (random() % (PROP_VALUE_MAX - 1)) + 1;
+            values[i] = new char[PROP_VALUE_MAX];
+            for (int j = 0; j < value_lens[i]; j++) {
+                values[i][j] = prop_name_chars[random() % (sizeof(prop_name_chars) - 1)];
+            }
+
+            if (__system_property_add(names[i], name_lens[i], values[i], value_lens[i]) < 0) {
+                printf("Failed to add a property, terminating...\n");
+                printf("%s = %.*s\n", names[i], value_lens[i], values[i]);
+                exit(1);
+            }
+        }
+
+        valid = true;
     }
 
-    valid = true;
-  }
+    ~LocalPropertyTestState() {
+        if (!valid)
+            return;
 
-  ~LocalPropertyTestState() {
-    if (!valid)
-      return;
+        __system_property_area__ = old_pa;
 
-    __system_property_area__ = old_pa;
+        __system_property_set_filename(PROP_FILENAME);
+        unlink(pa_filename.c_str());
+        rmdir(pa_dirname.c_str());
 
-    __system_property_set_filename(PROP_FILENAME);
-    unlink(pa_filename.c_str());
-    rmdir(pa_dirname.c_str());
-
-    for (int i = 0; i < nprops; i++) {
-      delete names[i];
-      delete values[i];
+        for (int i = 0; i < nprops; i++) {
+            delete names[i];
+            delete values[i];
+        }
+        delete[] names;
+        delete[] name_lens;
+        delete[] values;
+        delete[] value_lens;
     }
-    delete[] names;
-    delete[] name_lens;
-    delete[] values;
-    delete[] value_lens;
-  }
 public:
-  const int nprops;
-  char** names;
-  int* name_lens;
-  char** values;
-  int* value_lens;
-  bool valid;
+    const int nprops;
+    char **names;
+    int *name_lens;
+    char **values;
+    int *value_lens;
+    bool valid;
 
 private:
-  std::string pa_dirname;
-  std::string pa_filename;
-  void* old_pa;
+    std::string pa_dirname;
+    std::string pa_filename;
+    void *old_pa;
 };
 
-BENCHMARK_WITH_ARG(BM_property_get, int)->TEST_NUM_PROPS;
-void BM_property_get::Run(int iters, int nprops) {
-  StopBenchmarkTiming();
+static void BM_property_get(int iters, int nprops)
+{
+    StopBenchmarkTiming();
 
-  LocalPropertyTestState pa(nprops);
-  char value[PROP_VALUE_MAX];
+    LocalPropertyTestState pa(nprops);
+    char value[PROP_VALUE_MAX];
 
-  if (!pa.valid)
-    return;
+    if (!pa.valid)
+        return;
 
-  srandom(iters * nprops);
+    srandom(iters * nprops);
 
-  StartBenchmarkTiming();
+    StartBenchmarkTiming();
 
-  for (int i = 0; i < iters; i++) {
-    __system_property_get(pa.names[random() % nprops], value);
-  }
-  StopBenchmarkTiming();
+    for (int i = 0; i < iters; i++) {
+        __system_property_get(pa.names[random() % nprops], value);
+    }
+    StopBenchmarkTiming();
 }
+BENCHMARK(BM_property_get)->TEST_NUM_PROPS;
 
-BENCHMARK_WITH_ARG(BM_property_find, int)->TEST_NUM_PROPS;
-void BM_property_find::Run(int iters, int nprops) {
-  StopBenchmarkTiming();
+static void BM_property_find(int iters, int nprops)
+{
+    StopBenchmarkTiming();
 
-  LocalPropertyTestState pa(nprops);
+    LocalPropertyTestState pa(nprops);
 
-  if (!pa.valid)
-    return;
+    if (!pa.valid)
+        return;
 
-  srandom(iters * nprops);
+    srandom(iters * nprops);
 
-  StartBenchmarkTiming();
+    StartBenchmarkTiming();
 
-  for (int i = 0; i < iters; i++) {
-    __system_property_find(pa.names[random() % nprops]);
-  }
-  StopBenchmarkTiming();
+    for (int i = 0; i < iters; i++) {
+        __system_property_find(pa.names[random() % nprops]);
+    }
+    StopBenchmarkTiming();
 }
+BENCHMARK(BM_property_find)->TEST_NUM_PROPS;
 
-BENCHMARK_WITH_ARG(BM_property_read, int)->TEST_NUM_PROPS;
-void BM_property_read::Run(int iters, int nprops) {
-  StopBenchmarkTiming();
+static void BM_property_read(int iters, int nprops)
+{
+    StopBenchmarkTiming();
 
-  LocalPropertyTestState pa(nprops);
+    LocalPropertyTestState pa(nprops);
 
-  if (!pa.valid)
-    return;
+    if (!pa.valid)
+        return;
 
-  srandom(iters * nprops);
-  const prop_info** pinfo = new const prop_info*[iters];
-  char propvalue[PROP_VALUE_MAX];
+    srandom(iters * nprops);
+    const prop_info** pinfo = new const prop_info*[iters];
+    char propvalue[PROP_VALUE_MAX];
 
-  for (int i = 0; i < iters; i++) {
-    pinfo[i] = __system_property_find(pa.names[random() % nprops]);
-  }
+    for (int i = 0; i < iters; i++) {
+        pinfo[i] = __system_property_find(pa.names[random() % nprops]);
+    }
 
-  StartBenchmarkTiming();
-  for (int i = 0; i < iters; i++) {
-    __system_property_read(pinfo[i], 0, propvalue);
-  }
-  StopBenchmarkTiming();
+    StartBenchmarkTiming();
+    for (int i = 0; i < iters; i++) {
+        __system_property_read(pinfo[i], 0, propvalue);
+    }
+    StopBenchmarkTiming();
 
-  delete[] pinfo;
+    delete[] pinfo;
 }
+BENCHMARK(BM_property_read)->TEST_NUM_PROPS;
 
-BENCHMARK_WITH_ARG(BM_property_serial, int)->TEST_NUM_PROPS;
-void BM_property_serial::Run(int iters, int nprops) {
-  StopBenchmarkTiming();
+static void BM_property_serial(int iters, int nprops)
+{
+    StopBenchmarkTiming();
 
-  LocalPropertyTestState pa(nprops);
+    LocalPropertyTestState pa(nprops);
 
-  if (!pa.valid)
-    return;
+    if (!pa.valid)
+        return;
 
-  srandom(iters * nprops);
-  const prop_info** pinfo = new const prop_info*[iters];
+    srandom(iters * nprops);
+    const prop_info** pinfo = new const prop_info*[iters];
 
-  for (int i = 0; i < iters; i++) {
-    pinfo[i] = __system_property_find(pa.names[random() % nprops]);
-  }
+    for (int i = 0; i < iters; i++) {
+        pinfo[i] = __system_property_find(pa.names[random() % nprops]);
+    }
 
-  StartBenchmarkTiming();
-  for (int i = 0; i < iters; i++) {
-    __system_property_serial(pinfo[i]);
-  }
-  StopBenchmarkTiming();
+    StartBenchmarkTiming();
+    for (int i = 0; i < iters; i++) {
+        __system_property_serial(pinfo[i]);
+    }
+    StopBenchmarkTiming();
 
-  delete[] pinfo;
+    delete[] pinfo;
 }
-
-#endif  // __BIONIC__
+BENCHMARK(BM_property_serial)->TEST_NUM_PROPS;

benchmarks/pthread_benchmark.cpp

@@ -14,15 +14,14 @@
  * limitations under the License.
  */
 
-#include <pthread.h>
+#include "benchmark.h"
 
-#include <benchmark/Benchmark.h>
+#include <pthread.h>
 
 // Stop GCC optimizing out our pure function.
 /* Must not be static! */ pthread_t (*pthread_self_fp)() = pthread_self;
 
-BENCHMARK_NO_ARG(BM_pthread_self);
-void BM_pthread_self::Run(int iters) {
+static void BM_pthread_self(int iters) {
   StartBenchmarkTiming();
 
   for (int i = 0; i < iters; ++i) {
@@ -31,9 +30,9 @@ void BM_pthread_self::Run(int iters) {
 
   StopBenchmarkTiming();
 }
+BENCHMARK(BM_pthread_self);
 
-BENCHMARK_NO_ARG(BM_pthread_getspecific);
-void BM_pthread_getspecific::Run(int iters) {
+static void BM_pthread_getspecific(int iters) {
   StopBenchmarkTiming();
   pthread_key_t key;
   pthread_key_create(&key, NULL);
@@ -46,27 +45,12 @@ void BM_pthread_getspecific::Run(int iters) {
   StopBenchmarkTiming();
   pthread_key_delete(key);
 }
-
-BENCHMARK_NO_ARG(BM_pthread_setspecific);
-void BM_pthread_setspecific::Run(int iters) {
-  StopBenchmarkTiming();
-  pthread_key_t key;
-  pthread_key_create(&key, NULL);
-  StartBenchmarkTiming();
-
-  for (int i = 0; i < iters; ++i) {
-    pthread_setspecific(key, NULL);
-  }
-
-  StopBenchmarkTiming();
-  pthread_key_delete(key);
-}
+BENCHMARK(BM_pthread_getspecific);
 
 static void DummyPthreadOnceInitFunction() {
 }
 
-BENCHMARK_NO_ARG(BM_pthread_once);
-void BM_pthread_once::Run(int iters) {
+static void BM_pthread_once(int iters) {
   StopBenchmarkTiming();
   pthread_once_t once = PTHREAD_ONCE_INIT;
   pthread_once(&once, DummyPthreadOnceInitFunction);
@@ -78,9 +62,9 @@ void BM_pthread_once::Run(int iters) {
 
   StopBenchmarkTiming();
 }
+BENCHMARK(BM_pthread_once);
 
-BENCHMARK_NO_ARG(BM_pthread_mutex_lock);
-void BM_pthread_mutex_lock::Run(int iters) {
+static void BM_pthread_mutex_lock(int iters) {
   StopBenchmarkTiming();
   pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
   StartBenchmarkTiming();
@@ -92,11 +76,11 @@ void BM_pthread_mutex_lock::Run(int iters) {
 
   StopBenchmarkTiming();
 }
+BENCHMARK(BM_pthread_mutex_lock);
 
-BENCHMARK_NO_ARG(BM_pthread_mutex_lock_ERRORCHECK);
-void BM_pthread_mutex_lock_ERRORCHECK::Run(int iters) {
+static void BM_pthread_mutex_lock_ERRORCHECK(int iters) {
   StopBenchmarkTiming();
-  pthread_mutex_t mutex = PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP;
+  pthread_mutex_t mutex = PTHREAD_ERRORCHECK_MUTEX_INITIALIZER;
   StartBenchmarkTiming();
 
   for (int i = 0; i < iters; ++i) {
@@ -106,11 +90,11 @@ void BM_pthread_mutex_lock_ERRORCHECK::Run(int iters) {
 
   StopBenchmarkTiming();
 }
+BENCHMARK(BM_pthread_mutex_lock_ERRORCHECK);
 
-BENCHMARK_NO_ARG(BM_pthread_mutex_lock_RECURSIVE);
-void BM_pthread_mutex_lock_RECURSIVE::Run(int iters) {
+static void BM_pthread_mutex_lock_RECURSIVE(int iters) {
   StopBenchmarkTiming();
-  pthread_mutex_t mutex = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP;
+  pthread_mutex_t mutex = PTHREAD_RECURSIVE_MUTEX_INITIALIZER;
   StartBenchmarkTiming();
 
   for (int i = 0; i < iters; ++i) {
@@ -120,114 +104,4 @@ void BM_pthread_mutex_lock_RECURSIVE::Run(int iters) {
 
   StopBenchmarkTiming();
 }
-
-BENCHMARK_NO_ARG(BM_pthread_rwlock_read);
-void BM_pthread_rwlock_read::Run(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_NO_ARG(BM_pthread_rwlock_write);
-void BM_pthread_rwlock_write::Run(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);
-}
-
-static void* IdleThread(void*) {
-  return NULL;
-}
-
-BENCHMARK_NO_ARG(BM_pthread_create);
-void BM_pthread_create::Run(int iters) {
-  StopBenchmarkTiming();
-  pthread_t thread;
-
-  for (int i = 0; i < iters; ++i) {
-    StartBenchmarkTiming();
-    pthread_create(&thread, NULL, IdleThread, NULL);
-    StopBenchmarkTiming();
-    pthread_join(thread, NULL);
-  }
-}
-
-static void* RunThread(void* arg) {
-  ::testing::Benchmark* benchmark = reinterpret_cast<::testing::Benchmark*>(arg);
-  benchmark->StopBenchmarkTiming();
-  return NULL;
-}
-
-BENCHMARK_NO_ARG(BM_pthread_create_and_run);
-void BM_pthread_create_and_run::Run(int iters) {
-  StopBenchmarkTiming();
-  pthread_t thread;
-
-  for (int i = 0; i < iters; ++i) {
-    StartBenchmarkTiming();
-    pthread_create(&thread, NULL, RunThread, this);
-    pthread_join(thread, NULL);
-  }
-}
-
-static void* ExitThread(void* arg) {
-  ::testing::Benchmark* benchmark = reinterpret_cast<::testing::Benchmark*>(arg);
-  benchmark->StartBenchmarkTiming();
-  pthread_exit(NULL);
-}
-
-BENCHMARK_NO_ARG(BM_pthread_exit_and_join);
-void BM_pthread_exit_and_join::Run(int iters) {
-  StopBenchmarkTiming();
-  pthread_t thread;
-
-  for (int i = 0; i < iters; ++i) {
-    pthread_create(&thread, NULL, ExitThread, this);
-    pthread_join(thread, NULL);
-    StopBenchmarkTiming();
-  }
-}
-
-BENCHMARK_NO_ARG(BM_pthread_key_create);
-void BM_pthread_key_create::Run(int iters) {
-  StopBenchmarkTiming();
-  pthread_key_t key;
-
-  for (int i = 0; i < iters; ++i) {
-    StartBenchmarkTiming();
-    pthread_key_create(&key, NULL);
-    StopBenchmarkTiming();
-    pthread_key_delete(key);
-  }
-}
-
-BENCHMARK_NO_ARG(BM_pthread_key_delete);
-void BM_pthread_key_delete::Run(int iters) {
-  StopBenchmarkTiming();
-  pthread_key_t key;
-
-  for (int i = 0; i < iters; ++i) {
-    pthread_key_create(&key, NULL);
-    StartBenchmarkTiming();
-    pthread_key_delete(key);
-    StopBenchmarkTiming();
-  }
-}
+BENCHMARK(BM_pthread_mutex_lock_RECURSIVE);

benchmarks/semaphore_benchmark.cpp

@@ -14,15 +14,11 @@
  * limitations under the License.
  */
 
-#include <pthread.h>
+#include "benchmark.h"
+
 #include <semaphore.h>
-#include <stdatomic.h>
-#include <stdio.h>
 
-#include <benchmark/Benchmark.h>
-
-BENCHMARK_NO_ARG(BM_semaphore_sem_getvalue);
-void BM_semaphore_sem_getvalue::Run(int iters) {
+static void BM_semaphore_sem_getvalue(int iters) {
   StopBenchmarkTiming();
   sem_t semaphore;
   sem_init(&semaphore, 1, 1);
@@ -35,9 +31,9 @@ void BM_semaphore_sem_getvalue::Run(int iters) {
 
   StopBenchmarkTiming();
 }
+BENCHMARK(BM_semaphore_sem_getvalue);
 
-BENCHMARK_NO_ARG(BM_semaphore_sem_wait_sem_post);
-void BM_semaphore_sem_wait_sem_post::Run(int iters) {
+static void BM_semaphore_sem_wait_sem_post(int iters) {
   StopBenchmarkTiming();
   sem_t semaphore;
   sem_init(&semaphore, 1, 1);
@@ -50,94 +46,4 @@ void BM_semaphore_sem_wait_sem_post::Run(int iters) {
 
   StopBenchmarkTiming();
 }
-
-/*
- *    This test reports the overhead of the underlying futex wake syscall on
- * the producer. It does not report the overhead from issuing the wake to the
- * point where the posted consumer thread wakes up. It suffers from
- * clock_gettime syscall overhead. Lock the CPU speed for consistent results
- * as we may not reach >50% cpu utilization.
- *
- *    We will run a background thread that catches the sem_post wakeup and
- * loops immediately returning back to sleep in sem_wait for the next one. This
- * thread is run with policy SCHED_OTHER (normal policy), a middle policy.
- *
- *    The primary thread will run at SCHED_IDLE (lowest priority policy) when
- * monitoring the background thread to detect when it hits sem_wait sleep. It
- * will do so with no clock running. Once we are ready, we will switch to
- * SCHED_FIFO (highest priority policy) to time the act of running sem_post
- * with the benchmark clock running. This ensures nothing else in the system
- * can preempt our timed activity, including the background thread. We are
- * also protected with the scheduling policy of letting a process hit a
- * resource limit rather than get hit with a context switch.
- *
- *    The background thread will start executing either on another CPU, or
- * after we back down from SCHED_FIFO, but certainly not in the context of
- * the timing of the sem_post.
- */
-static atomic_int BM_semaphore_sem_post_running;
-
-static void *BM_semaphore_sem_post_start_thread(void *obj) {
-    sem_t *semaphore = reinterpret_cast<sem_t *>(obj);
-
-    while ((BM_semaphore_sem_post_running > 0) && !sem_wait(semaphore)) {
-        ;
-    }
-    BM_semaphore_sem_post_running = -1;
-    return NULL;
-}
-
-BENCHMARK_NO_ARG(BM_semaphore_sem_post);
-void BM_semaphore_sem_post::Run(int iters) {
-  StopBenchmarkTiming();
-
-  sem_t semaphore;
-  sem_init(&semaphore, 0, 0);
-
-  pthread_attr_t attr;
-  pthread_attr_init(&attr);
-  BM_semaphore_sem_post_running = 1;
-  struct sched_param param = { 0, };
-  pthread_attr_setschedparam(&attr, &param);
-  pthread_attr_setschedpolicy(&attr, SCHED_OTHER);
-  pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
-  pthread_t pthread;
-  pthread_create(&pthread, &attr, BM_semaphore_sem_post_start_thread, &semaphore);
-  pthread_attr_destroy(&attr);
-
-  sched_setscheduler((pid_t)0, SCHED_IDLE, &param);
-  for (int i = 0; i < iters; ++i) {
-    int trys = 3, dummy = 0;
-    do {
-      if (BM_semaphore_sem_post_running < 0) {
-        sched_setscheduler((pid_t)0, SCHED_OTHER, &param);
-        fprintf(stderr, "BM_semaphore_sem_post: start_thread died unexpectedly\n");
-        return;
-      }
-      sched_yield();
-      sem_getvalue(&semaphore, &dummy);
-      if (dummy < 0) {  // POSIX.1-2001 possibility 1
-        break;
-      }
-      if (dummy == 0) { // POSIX.1-2001 possibility 2
-        --trys;
-      }
-    } while (trys);
-    param.sched_priority = 1;
-    sched_setscheduler((pid_t)0, SCHED_FIFO, &param);
-    StartBenchmarkTiming();
-    sem_post(&semaphore);
-    StopBenchmarkTiming(); // Remember to subtract clock syscall overhead
-    param.sched_priority = 0;
-    sched_setscheduler((pid_t)0, SCHED_IDLE, &param);
-  }
-  sched_setscheduler((pid_t)0, SCHED_OTHER, &param);
-
-  if (BM_semaphore_sem_post_running > 0) {
-    BM_semaphore_sem_post_running = 0;
-  }
-  do {
-    sem_post(&semaphore);
-    sched_yield();
-  } while (!BM_semaphore_sem_post_running);
-}
+BENCHMARK(BM_semaphore_sem_wait_sem_post);

benchmarks/stdio_benchmark.cpp

@@ -14,10 +14,9 @@
  * limitations under the License.
  */
 
-#include <stdio.h>
-#include <stdio_ext.h>
+#include "benchmark.h"
 
-#include <benchmark/Benchmark.h>
+#include <stdio.h>
 
 #define KB 1024
 #define MB 1024*KB
@@ -26,68 +25,37 @@
     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)
 
-template <typename Fn>
-void ReadWriteTest(::testing::Benchmark* benchmark, int iters, int chunk_size, Fn f, bool buffered) {
-  benchmark->StopBenchmarkTiming();
+static void BM_stdio_fread(int iters, int chunk_size) {
+  StopBenchmarkTiming();
   FILE* fp = fopen("/dev/zero", "rw");
-  __fsetlocking(fp, FSETLOCKING_BYCALLER);
   char* buf = new char[chunk_size];
-  benchmark->StartBenchmarkTiming();
-
-  if (!buffered) {
-    setvbuf(fp, 0, _IONBF, 0);
-  }
+  StartBenchmarkTiming();
 
   for (int i = 0; i < iters; ++i) {
-    f(buf, chunk_size, 1, fp);
+    fread(buf, chunk_size, 1, fp);
   }
 
-  benchmark->StopBenchmarkTiming();
-  benchmark->SetBenchmarkBytesProcessed(int64_t(iters) * int64_t(chunk_size));
+  StopBenchmarkTiming();
+  SetBenchmarkBytesProcessed(int64_t(iters) * int64_t(chunk_size));
   delete[] buf;
   fclose(fp);
 }
+BENCHMARK(BM_stdio_fread)->AT_COMMON_SIZES;
 
-BENCHMARK_WITH_ARG(BM_stdio_fread, int)->AT_COMMON_SIZES;
-void BM_stdio_fread::Run(int iters, int chunk_size) {
-  ReadWriteTest(this, iters, chunk_size, fread, true);
-}
 
-BENCHMARK_WITH_ARG(BM_stdio_fwrite, int)->AT_COMMON_SIZES;
-void BM_stdio_fwrite::Run(int iters, int chunk_size) {
-  ReadWriteTest(this, iters, chunk_size, fwrite, true);
-}
+static void BM_stdio_fwrite(int iters, int chunk_size) {
+  StopBenchmarkTiming();
+  FILE* fp = fopen("/dev/zero", "rw");
+  char* buf = new char[chunk_size];
+  StartBenchmarkTiming();
 
-BENCHMARK_WITH_ARG(BM_stdio_fread_unbuffered, int)->AT_COMMON_SIZES;
-void BM_stdio_fread_unbuffered::Run(int iters, int chunk_size) {
-  ReadWriteTest(this, iters, chunk_size, fread, false);
-}
-
-BENCHMARK_WITH_ARG(BM_stdio_fwrite_unbuffered, int)->AT_COMMON_SIZES;
-void BM_stdio_fwrite_unbuffered::Run(int iters, int chunk_size) {
-  ReadWriteTest(this, iters, chunk_size, fwrite, false);
-}
-
-static void FopenFgetsFclose(int iters, bool no_locking) {
-  char buf[1024];
   for (int i = 0; i < iters; ++i) {
-    FILE* fp = fopen("/proc/version", "re");
-    if (no_locking) __fsetlocking(fp, FSETLOCKING_BYCALLER);
-    fgets(buf, sizeof(buf), fp);
-    fclose(fp);
+      fwrite(buf, chunk_size, 1, fp);
   }
-}
 
-BENCHMARK_NO_ARG(BM_stdio_fopen_fgets_fclose_locking);
-void BM_stdio_fopen_fgets_fclose_locking::Run(int iters) {
-  StartBenchmarkTiming();
-  FopenFgetsFclose(iters, false);
-  StopBenchmarkTiming();
-}
-
-BENCHMARK_NO_ARG(BM_stdio_fopen_fgets_fclose_no_locking);
-void BM_stdio_fopen_fgets_fclose_no_locking::Run(int iters) {
-  StartBenchmarkTiming();
-  FopenFgetsFclose(iters, true);
   StopBenchmarkTiming();
+  SetBenchmarkBytesProcessed(int64_t(iters) * int64_t(chunk_size));
+  delete[] buf;
+  fclose(fp);
 }
+BENCHMARK(BM_stdio_fwrite)->AT_COMMON_SIZES;

benchmarks/string_benchmark.cpp

@@ -14,10 +14,9 @@
  * limitations under the License.
  */
 
-#include <stdint.h>
-#include <string.h>
+#include "benchmark.h"
 
-#include <benchmark/Benchmark.h>
+#include <string.h>
 
 #define KB 1024
 #define MB 1024*KB
@@ -27,8 +26,7 @@
 
 // TODO: test unaligned operation too? (currently everything will be 8-byte aligned by malloc.)
 
-BENCHMARK_WITH_ARG(BM_string_memcmp, int)->AT_COMMON_SIZES;
-void BM_string_memcmp::Run(int iters, int nbytes) {
+static void BM_string_memcmp(int iters, int nbytes) {
   StopBenchmarkTiming();
   char* src = new char[nbytes]; char* dst = new char[nbytes];
   memset(src, 'x', nbytes);
@@ -41,13 +39,13 @@ void BM_string_memcmp::Run(int iters, int nbytes) {
   }
 
   StopBenchmarkTiming();
-  SetBenchmarkBytesProcessed(uint64_t(iters) * uint64_t(nbytes));
+  SetBenchmarkBytesProcessed(int64_t(iters) * int64_t(nbytes));
   delete[] src;
   delete[] dst;
 }
+BENCHMARK(BM_string_memcmp)->AT_COMMON_SIZES;
 
-BENCHMARK_WITH_ARG(BM_string_memcpy, int)->AT_COMMON_SIZES;
-void BM_string_memcpy::Run(int iters, int nbytes) {
+static void BM_string_memcpy(int iters, int nbytes) {
   StopBenchmarkTiming();
   char* src = new char[nbytes]; char* dst = new char[nbytes];
   memset(src, 'x', nbytes);
@@ -58,13 +56,13 @@ void BM_string_memcpy::Run(int iters, int nbytes) {
   }
 
   StopBenchmarkTiming();
-  SetBenchmarkBytesProcessed(uint64_t(iters) * uint64_t(nbytes));
+  SetBenchmarkBytesProcessed(int64_t(iters) * int64_t(nbytes));
   delete[] src;
   delete[] dst;
 }
+BENCHMARK(BM_string_memcpy)->AT_COMMON_SIZES;
 
-BENCHMARK_WITH_ARG(BM_string_memmove, int)->AT_COMMON_SIZES;
-void BM_string_memmove::Run(int iters, int nbytes) {
+static void BM_string_memmove(int iters, int nbytes) {
   StopBenchmarkTiming();
   char* buf = new char[nbytes + 64];
   memset(buf, 'x', nbytes + 64);
@@ -75,12 +73,12 @@ void BM_string_memmove::Run(int iters, int nbytes) {
   }
 
   StopBenchmarkTiming();
-  SetBenchmarkBytesProcessed(uint64_t(iters) * uint64_t(nbytes));
+  SetBenchmarkBytesProcessed(int64_t(iters) * int64_t(nbytes));
   delete[] buf;
 }
+BENCHMARK(BM_string_memmove)->AT_COMMON_SIZES;
 
-BENCHMARK_WITH_ARG(BM_string_memset, int)->AT_COMMON_SIZES;
-void BM_string_memset::Run(int iters, int nbytes) {
+static void BM_string_memset(int iters, int nbytes) {
   StopBenchmarkTiming();
   char* dst = new char[nbytes];
   StartBenchmarkTiming();
@@ -90,12 +88,12 @@ void BM_string_memset::Run(int iters, int nbytes) {
   }
 
   StopBenchmarkTiming();
-  SetBenchmarkBytesProcessed(uint64_t(iters) * uint64_t(nbytes));
+  SetBenchmarkBytesProcessed(int64_t(iters) * int64_t(nbytes));
   delete[] dst;
 }
+BENCHMARK(BM_string_memset)->AT_COMMON_SIZES;
 
-BENCHMARK_WITH_ARG(BM_string_strlen, int)->AT_COMMON_SIZES;
-void BM_string_strlen::Run(int iters, int nbytes) {
+static void BM_string_strlen(int iters, int nbytes) {
   StopBenchmarkTiming();
   char* s = new char[nbytes];
   memset(s, 'x', nbytes);
@@ -108,6 +106,7 @@ void BM_string_strlen::Run(int iters, int nbytes) {
   }
 
   StopBenchmarkTiming();
-  SetBenchmarkBytesProcessed(uint64_t(iters) * uint64_t(nbytes));
+  SetBenchmarkBytesProcessed(int64_t(iters) * int64_t(nbytes));
   delete[] s;
 }
+BENCHMARK(BM_string_strlen)->AT_COMMON_SIZES;

benchmarks/time_benchmark.cpp

@@ -14,14 +14,12 @@
  * limitations under the License.
  */
 
+#include "benchmark.h"
+
 #include <sys/syscall.h>
-#include <sys/time.h>
 #include <time.h>
 
-#include <benchmark/Benchmark.h>
-
-BENCHMARK_NO_ARG(BM_time_clock_gettime);
-void BM_time_clock_gettime::Run(int iters) {
+static void BM_time_clock_gettime(int iters) {
   StartBenchmarkTiming();
 
   timespec t;
@@ -31,9 +29,9 @@ void BM_time_clock_gettime::Run(int iters) {
 
   StopBenchmarkTiming();
 }
+BENCHMARK(BM_time_clock_gettime);
 
-BENCHMARK_NO_ARG(BM_time_clock_gettime_syscall);
-void BM_time_clock_gettime_syscall::Run(int iters) {
+static void BM_time_clock_gettime_syscall(int iters) {
   StartBenchmarkTiming();
 
   timespec t;
@@ -43,9 +41,9 @@ void BM_time_clock_gettime_syscall::Run(int iters) {
 
   StopBenchmarkTiming();
 }
+BENCHMARK(BM_time_clock_gettime_syscall);
 
-BENCHMARK_NO_ARG(BM_time_gettimeofday);
-void BM_time_gettimeofday::Run(int iters) {
+static void BM_time_gettimeofday(int iters) {
   StartBenchmarkTiming();
 
   timeval tv;
@@ -55,9 +53,9 @@ void BM_time_gettimeofday::Run(int iters) {
 
   StopBenchmarkTiming();
 }
+BENCHMARK(BM_time_gettimeofday);
 
-BENCHMARK_NO_ARG(BM_time_gettimeofday_syscall);
-void BM_time_gettimeofday_syscall::Run(int iters) {
+static void BM_time_gettimeofday_syscall(int iters) {
   StartBenchmarkTiming();
 
   timeval tv;
@@ -67,9 +65,9 @@ void BM_time_gettimeofday_syscall::Run(int iters) {
 
   StopBenchmarkTiming();
 }
+BENCHMARK(BM_time_gettimeofday_syscall);
 
-BENCHMARK_NO_ARG(BM_time_time);
-void BM_time_time::Run(int iters) {
+static void BM_time_time(int iters) {
   StartBenchmarkTiming();
 
   for (int i = 0; i < iters; ++i) {
@@ -78,3 +76,4 @@ void BM_time_time::Run(int iters) {
 
   StopBenchmarkTiming();
 }
+BENCHMARK(BM_time_time);

benchmarks/unistd_benchmark.cpp

@@ -14,13 +14,12 @@
  * limitations under the License.
  */
 
+#include "benchmark.h"
+
 #include <sys/syscall.h>
 #include <unistd.h>
 
-#include <benchmark/Benchmark.h>
-
-BENCHMARK_NO_ARG(BM_unistd_getpid);
-void BM_unistd_getpid::Run(int iters) {
+static void BM_unistd_getpid(int iters) {
   StartBenchmarkTiming();
 
   for (int i = 0; i < iters; ++i) {
@@ -29,9 +28,9 @@ void BM_unistd_getpid::Run(int iters) {
 
   StopBenchmarkTiming();
 }
+BENCHMARK(BM_unistd_getpid);
 
-BENCHMARK_NO_ARG(BM_unistd_getpid_syscall);
-void BM_unistd_getpid_syscall::Run(int iters) {
+static void BM_unistd_getpid_syscall(int iters) {
   StartBenchmarkTiming();
 
   for (int i = 0; i < iters; ++i) {
@@ -40,14 +39,12 @@ void BM_unistd_getpid_syscall::Run(int iters) {
 
   StopBenchmarkTiming();
 }
-
-#if defined(__BIONIC__)
+BENCHMARK(BM_unistd_getpid_syscall);
 
 // Stop GCC optimizing out our pure function.
 /* Must not be static! */ pid_t (*gettid_fp)() = gettid;
 
-BENCHMARK_NO_ARG(BM_unistd_gettid);
-void BM_unistd_gettid::Run(int iters) {
+static void BM_unistd_gettid(int iters) {
   StartBenchmarkTiming();
 
   for (int i = 0; i < iters; ++i) {
@@ -56,11 +53,9 @@ void BM_unistd_gettid::Run(int iters) {
 
   StopBenchmarkTiming();
 }
+BENCHMARK(BM_unistd_gettid);
 
-#endif
-
-BENCHMARK_NO_ARG(BM_unistd_gettid_syscall);
-void BM_unistd_gettid_syscall::Run(int iters) {
+static void BM_unistd_gettid_syscall(int iters) {
   StartBenchmarkTiming();
 
   for (int i = 0; i < iters; ++i) {
@@ -69,3 +64,4 @@ void BM_unistd_gettid_syscall::Run(int iters) {
 
   StopBenchmarkTiming();
 }
+BENCHMARK(BM_unistd_gettid_syscall);

benchmarks/utils.cpp

@@ -1,81 +0,0 @@
-/*
- * Copyright (C) 2012 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 <inttypes.h>
-#include <stdio.h>
-#include <stdint.h>
-#include <stdlib.h>
-
-#include <string>
-
-#include "utils.h"
-
-int Round(int n) {
-  int base = 1;
-  while (base*10 < n) {
-    base *= 10;
-  }
-  if (n < 2*base) {
-    return 2*base;
-  }
-  if (n < 5*base) {
-    return 5*base;
-  }
-  return 10*base;
-}
-
-// Similar to the code in art, but supporting both binary and decimal prefixes.
-std::string PrettyInt(long value, size_t base) {
-  if (base != 2 && base != 10) abort();
-
-  uint64_t count = static_cast<uint64_t>(value);
-  bool negative_number = false;
-  if (value < 0) {
-    negative_number = true;
-    count = static_cast<uint64_t>(-value);
-  }
-
-  // The byte thresholds at which we display amounts. A count is displayed
-  // in unit U when kUnitThresholds[U] <= bytes < kUnitThresholds[U+1].
-  static const uint64_t kUnitThresholds2[] = {
-    1024*1024*1024 /* Gi */, 2*1024*1024 /* Mi */, 3*1024 /* Ki */, 0,
-  };
-  static const uint64_t kUnitThresholds10[] = {
-    1000*1000*1000 /* G */, 2*1000*1000 /* M */, 3*1000 /* k */, 0,
-  };
-  static const uint64_t kAmountPerUnit2[] = { 1024*1024*1024, 1024*1024, 1024, 1 };
-  static const uint64_t kAmountPerUnit10[] = { 1000*1000*1000, 1000*1000, 1000, 1 };
-  static const char* const kUnitStrings2[] = { "Gi", "Mi", "Ki", "" };
-  static const char* const kUnitStrings10[] = { "G", "M", "k", "" };
-
-  // Which set are we using?
-  const uint64_t* kUnitThresholds = ((base == 2) ? kUnitThresholds2 : kUnitThresholds10);
-  const uint64_t* kAmountPerUnit = ((base == 2) ? kAmountPerUnit2 : kAmountPerUnit10);
-  const char* const* kUnitStrings = ((base == 2) ? kUnitStrings2 : kUnitStrings10);
-
-  size_t i = 0;
-  for (; kUnitThresholds[i] != 0; ++i) {
-    if (count >= kUnitThresholds[i]) {
-      break;
-    }
-  }
-  char* s = NULL;
-  asprintf(&s, "%s%" PRId64 "%s", (negative_number ? "-" : ""),
-           count / kAmountPerUnit[i], kUnitStrings[i]);
-  std::string result(s);
-  free(s);
-  return result;
-}

benchmarks/utils.h

@@ -1,26 +0,0 @@
-/*
- * Copyright (C) 2012 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.
- */
-
-#ifndef BENCHMARKS_UTILS_H
-#define BENCHMARKS_UTILS_H
-
-#include <stddef.h>
-#include <string>
-
-int Round(int n);
-std::string PrettyInt(long value, size_t base);
-
-#endif  // BENCHMARKS_UTILS_H

build/run-on-host.mk

@@ -1,44 +0,0 @@
-#
-# Copyright (C) 2014 The Android Open Source Project
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-
-# Include 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/NOTICE

@@ -1679,6 +1679,35 @@ SUCH DAMAGE.
 
 -------------------------------------------------------------------
 
+Copyright (c) 1990 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) 1990 The Regents of the University of California.
 All rights reserved.
 
@@ -2481,6 +2510,35 @@ 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
    The Regents of the University of California.  All rights reserved.
 
@@ -2510,6 +2568,33 @@ SUCH DAMAGE.
 
 -------------------------------------------------------------------
 
+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.
+
+-------------------------------------------------------------------
+
 Copyright (c) 1993 Martin Birgmeier
 All rights reserved.
 
@@ -2629,6 +2714,63 @@ OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
 -------------------------------------------------------------------
 
+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.
+
+-------------------------------------------------------------------
+
+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.
+
+-------------------------------------------------------------------
+
 Copyright (c) 1997 Mark Brinicombe
 Copyright (c) 2010 Android Open Source Project.
 All rights reserved.
@@ -2989,6 +3131,38 @@ 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.
@@ -3252,6 +3426,34 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 -------------------------------------------------------------------
 
+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.
+
+-------------------------------------------------------------------
+
 Copyright (c) 2002 The NetBSD Foundation, Inc.
 All rights reserved.
 
@@ -3884,22 +4086,6 @@ SUCH DAMAGE.
 
 -------------------------------------------------------------------
 
-Copyright (c) 2008 Otto Moerbeek <otto@drijf.net>
-
-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) 2008 Todd C. Miller <millert@openbsd.org>
 
 Permission to use, copy, modify, and distribute this software for any
@@ -4236,39 +4422,6 @@ 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.
@@ -4486,32 +4639,35 @@ OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
 -------------------------------------------------------------------
 
-Copyright (c) 2013 The NetBSD Foundation, Inc.
-All rights reserved.
+Copyright (c) 2013, Linaro Limited
+   All rights reserved.
 
-This code is derived from software contributed to The NetBSD Foundation
-by Christos Zoulas.
+   Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following conditions
+   are met:
 
-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.
+      * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
 
-THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+      * 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 Linaro Limited 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.
 
 -------------------------------------------------------------------
 
@@ -4697,42 +4853,6 @@ 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(void*, size_t, int)  all
+int         madvise(const void*, size_t, int)  all
 int         mlock(const void* addr, size_t len)    all
 int         munlock(const void* addr, size_t len)   all
 int         mlockall(int flags)   all
@@ -113,7 +113,7 @@ int         writev(int, const struct iovec*, int)  all
 int         __fcntl64:fcntl64(int, int, void*)  arm,mips,x86
 int         fcntl(int, int, void*)  arm64,mips64,x86_64
 int         flock(int, int)   all
-int         ___fchmod:fchmod(int, mode_t)  all
+int         fchmod(int, mode_t)  all
 int         dup(int)  all
 int         pipe2(int*, int) all
 int         dup3(int, int, int)   all
@@ -130,11 +130,11 @@ int         fremovexattr(int, const char*) all
 int __getdents64:getdents64(unsigned int, struct dirent*, unsigned int)   arm,arm64,mips,mips64,x86,x86_64
 
 int __openat:openat(int, const char*, int, mode_t) all
-int ___faccessat:faccessat(int, const char*, int)  all
-int ___fchmodat:fchmodat(int, const char*, mode_t)  all
+int faccessat(int, const char*, int, int)  all
+int fchmodat(int, const char*, mode_t, int)  all
 int fchownat(int, const char*, uid_t, gid_t, int)  all
 int fstatat64|fstatat:fstatat64(int, const char*, struct stat*, int)   arm,mips,x86
-int fstatat64|fstatat:newfstatat(int, const char*, struct stat*, int)  arm64,x86_64
+int fstatat64|fstatat:newfstatat(int, const char*, struct stat*, int)  arm64,mips64,x86_64
 int linkat(int, const char*, int, const char*, int)  all
 int mkdirat(int, const char*, mode_t)  all
 int mknodat(int, const char*, mode_t, dev_t)  all
@@ -174,12 +174,12 @@ int __fadvise64:fadvise64_64(int, off64_t, off64_t, int) x86
 int __fadvise64:fadvise64(int, off64_t, off64_t, int) arm64,mips,mips64,x86_64
 
 int __fstatfs64:fstatfs64(int, size_t, struct statfs*)  arm,mips,x86
-int __fstatfs:fstatfs(int, struct statfs*)  arm64,mips64,x86_64
+int fstatfs64|fstatfs:fstatfs(int, struct statfs*)  arm64,mips64,x86_64
 int __statfs64:statfs64(const char*, size_t, struct statfs*)  arm,mips,x86
-int __statfs:statfs(const char*, struct statfs*)  arm64,mips64,x86_64
+int statfs64|statfs:statfs(const char*, struct statfs*)  arm64,mips64,x86_64
 
 int     fstat64|fstat:fstat64(int, struct stat*)    arm,mips,x86
-int     fstat64|fstat:fstat(int, struct stat*)    arm64,x86_64
+int     fstat64|fstat:fstat(int, struct stat*)    arm64,mips64,x86_64
 
 # file system
 int     chdir(const char*)              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, 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           clock_settime(clockid_t clk_id, const struct timespec* tp)  all
+int           clock_getres(clockid_t clk_id, struct timespec* res)   all
+int           clock_nanosleep(clockid_t clock_id, int flags, const struct timespec* req, struct timespec* rem)  all
 int           getitimer(int, const struct itimerval*)   all
 int           setitimer(int, const struct itimerval*, struct itimerval*)  all
 int           __timer_create:timer_create(clockid_t clockid, struct sigevent* evp, __kernel_timer_t* timerid)    all
@@ -223,7 +223,6 @@ 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
@@ -314,8 +313,6 @@ 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
 
@@ -324,7 +321,7 @@ 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
+int     _flush_cache:cacheflush(char* addr, const int nbytes, const int op) mips,mips64
 int     __set_tls:set_thread_area(void*) mips,mips64
 
 # x86-specific

libc/arch-arm/arm.mk

@@ -1,10 +1,30 @@
 # 32-bit 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 \
+
 #
 # Default implementations of functions that are commonly optimized.
 #
 
 libc_bionic_src_files_arm += \
+    bionic/memchr.c \
+    bionic/memrchr.c \
     bionic/strchr.cpp \
     bionic/strnlen.c \
     bionic/strrchr.cpp \
@@ -20,8 +40,7 @@ libc_freebsd_src_files_arm += \
     upstream-freebsd/lib/libc/string/wmemmove.c \
 
 libc_openbsd_src_files_arm += \
-    upstream-openbsd/lib/libc/string/memchr.c \
-    upstream-openbsd/lib/libc/string/memrchr.c \
+    upstream-openbsd/lib/libc/string/bcopy.c \
     upstream-openbsd/lib/libc/string/stpncpy.c \
     upstream-openbsd/lib/libc/string/strlcat.c \
     upstream-openbsd/lib/libc/string/strlcpy.c \
@@ -39,9 +58,11 @@ libc_bionic_src_files_arm += \
     arch-arm/bionic/__bionic_clone.S \
     arch-arm/bionic/_exit_with_stack_teardown.S \
     arch-arm/bionic/libgcc_compat.c \
-    arch-arm/bionic/libgcc_protect_unwind.c \
+    arch-arm/bionic/memcmp.S \
     arch-arm/bionic/__restore.S \
+    arch-arm/bionic/_setjmp.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-arm/bionic/__aeabi.c

@@ -39,9 +39,6 @@
 
 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.
@@ -50,35 +47,35 @@ 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 __attribute__((weak))
-__aeabi_memcpy8(void *dest, const void *src, size_t n) {
+void __aeabi_memcpy8(void *dest, const void *src, size_t n) {
     memcpy(dest, src, n);
 }
 
-void __attribute__((weak)) __aeabi_memcpy4(void *dest, const void *src, size_t n) {
+void __aeabi_memcpy4(void *dest, const void *src, size_t n) {
     memcpy(dest, src, n);
 }
 
-void __attribute__((weak)) __aeabi_memcpy(void *dest, const void *src, size_t n) {
+void __aeabi_memcpy(void *dest, const void *src, size_t n) {
     memcpy(dest, src, n);
 }
 
 
-void __attribute__((weak)) __aeabi_memmove8(void *dest, const void *src, size_t n) {
+void __aeabi_memmove8(void *dest, const void *src, size_t n) {
     memmove(dest, src, n);
 }
 
-void __attribute__((weak)) __aeabi_memmove4(void *dest, const void *src, size_t n) {
+void __aeabi_memmove4(void *dest, const void *src, size_t n) {
     memmove(dest, src, n);
 }
 
-void __attribute__((weak)) __aeabi_memmove(void *dest, const void *src, size_t n) {
+void __aeabi_memmove(void *dest, const void *src, size_t n) {
     memmove(dest, src, n);
 }
 
@@ -87,27 +84,27 @@ void __attribute__((weak)) __aeabi_memmove(void *dest, const void *src, size_t n
  *  This allows __aeabi_memclr to tail-call __aeabi_memset
  */
 
-void __attribute__((weak)) __aeabi_memset8(void *dest, size_t n, int c) {
+void __aeabi_memset8(void *dest, size_t n, int c) {
     memset(dest, c, n);
 }
 
-void __attribute__((weak)) __aeabi_memset4(void *dest, size_t n, int c) {
+void __aeabi_memset4(void *dest, size_t n, int c) {
     memset(dest, c, n);
 }
 
-void __attribute__((weak)) __aeabi_memset(void *dest, size_t n, int c) {
+void __aeabi_memset(void *dest, size_t n, int c) {
     memset(dest, c, n);
 }
 
 
-void __attribute__((weak)) __aeabi_memclr8(void *dest, size_t n) {
+void __aeabi_memclr8(void *dest, size_t n) {
     __aeabi_memset8(dest, n, 0);
 }
 
-void __attribute__((weak)) __aeabi_memclr4(void *dest, size_t n) {
+void __aeabi_memclr4(void *dest, size_t n) {
     __aeabi_memset4(dest, n, 0);
 }
 
-void __attribute__((weak)) __aeabi_memclr(void *dest, size_t n) {
+void __aeabi_memclr(void *dest, size_t n) {
     __aeabi_memset(dest, n, 0);
 }

libc/arch-arm/bionic/__bionic_clone.S

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

libc/arch-arm/bionic/_setjmp.S

@@ -0,0 +1,113 @@
+/*	$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      __libc_android_abort
+    bl      PIC_SYM(__libc_android_abort, PLT)
 END(abort)

libc/arch-arm/bionic/libgcc_protect_unwind.c

@@ -1,93 +0,0 @@
-/*
- * Copyright (C) 2015 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.
- */
-
-// TODO: This file should go away once unwinder migration to libc++.so is complete.
-
-extern char _Unwind_Backtrace __attribute((visibility("protected")));
-extern char __gnu_Unwind_Find_exidx __attribute((visibility("protected")));
-extern char __gnu_Unwind_Restore_VFP_D __attribute((visibility("protected")));
-extern char __gnu_Unwind_Restore_VFP __attribute((visibility("protected")));
-extern char __gnu_Unwind_Restore_VFP_D_16_to_31 __attribute((visibility("protected")));
-extern char __gnu_Unwind_Restore_WMMXD __attribute((visibility("protected")));
-extern char __gnu_Unwind_Restore_WMMXC __attribute((visibility("protected")));
-extern char _Unwind_GetCFA __attribute((visibility("protected")));
-extern char __gnu_Unwind_RaiseException __attribute((visibility("protected")));
-extern char __gnu_Unwind_ForcedUnwind __attribute((visibility("protected")));
-extern char __gnu_Unwind_Resume __attribute((visibility("protected")));
-extern char __gnu_Unwind_Resume_or_Rethrow __attribute((visibility("protected")));
-extern char _Unwind_Complete __attribute((visibility("protected")));
-extern char _Unwind_DeleteException __attribute((visibility("protected")));
-extern char _Unwind_VRS_Get __attribute((visibility("protected")));
-extern char _Unwind_VRS_Set __attribute((visibility("protected")));
-extern char __gnu_Unwind_Backtrace __attribute((visibility("protected")));
-extern char _Unwind_VRS_Pop __attribute((visibility("protected")));
-extern char __gnu_Unwind_Save_VFP_D __attribute((visibility("protected")));
-extern char __gnu_Unwind_Save_VFP __attribute((visibility("protected")));
-extern char __gnu_Unwind_Save_VFP_D_16_to_31 __attribute((visibility("protected")));
-extern char __gnu_Unwind_Save_WMMXD __attribute((visibility("protected")));
-extern char __gnu_Unwind_Save_WMMXC __attribute((visibility("protected")));
-extern char ___Unwind_RaiseException __attribute((visibility("protected")));
-extern char _Unwind_RaiseException __attribute((visibility("protected")));
-extern char ___Unwind_Resume __attribute((visibility("protected")));
-extern char _Unwind_Resume __attribute((visibility("protected")));
-extern char ___Unwind_Resume_or_Rethrow __attribute((visibility("protected")));
-extern char _Unwind_Resume_or_Rethrow __attribute((visibility("protected")));
-extern char ___Unwind_ForcedUnwind __attribute((visibility("protected")));
-extern char _Unwind_ForcedUnwind __attribute((visibility("protected")));
-extern char ___Unwind_Backtrace __attribute((visibility("protected")));
-extern char _Unwind_GetRegionStart __attribute((visibility("protected")));
-extern char _Unwind_GetLanguageSpecificData __attribute((visibility("protected")));
-extern char _Unwind_GetDataRelBase __attribute((visibility("protected")));
-extern char _Unwind_GetTextRelBase __attribute((visibility("protected")));
-
-void* __bionic_libgcc_unwind_symbols[] = {
-    &_Unwind_Backtrace,
-    &__gnu_Unwind_Find_exidx,
-    &__gnu_Unwind_Restore_VFP_D,
-    &__gnu_Unwind_Restore_VFP,
-    &__gnu_Unwind_Restore_VFP_D_16_to_31,
-    &__gnu_Unwind_Restore_WMMXD,
-    &__gnu_Unwind_Restore_WMMXC,
-    &_Unwind_GetCFA,
-    &__gnu_Unwind_RaiseException,
-    &__gnu_Unwind_ForcedUnwind,
-    &__gnu_Unwind_Resume,
-    &__gnu_Unwind_Resume_or_Rethrow,
-    &_Unwind_Complete,
-    &_Unwind_DeleteException,
-    &_Unwind_VRS_Get,
-    &_Unwind_VRS_Set,
-    &__gnu_Unwind_Backtrace,
-    &_Unwind_VRS_Pop,
-    &__gnu_Unwind_Save_VFP_D,
-    &__gnu_Unwind_Save_VFP,
-    &__gnu_Unwind_Save_VFP_D_16_to_31,
-    &__gnu_Unwind_Save_WMMXD,
-    &__gnu_Unwind_Save_WMMXC,
-    &___Unwind_RaiseException,
-    &_Unwind_RaiseException,
-    &___Unwind_Resume,
-    &_Unwind_Resume,
-    &___Unwind_Resume_or_Rethrow,
-    &_Unwind_Resume_or_Rethrow,
-    &___Unwind_ForcedUnwind,
-    &_Unwind_ForcedUnwind,
-    &___Unwind_Backtrace,
-    &_Unwind_GetRegionStart,
-    &_Unwind_GetLanguageSpecificData,
-    &_Unwind_GetDataRelBase,
-    &_Unwind_GetTextRelBase,
-};

libc/arch-arm/bionic/memcpy.S

@@ -0,0 +1,686 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <machine/cpu-features.h>
+#include <private/bionic_asm.h>
+
+#if defined(__ARM_NEON__) && !defined(ARCH_ARM_USE_NON_NEON_MEMCPY)
+
+        .text
+        .fpu    neon
+
+#ifdef HAVE_32_BYTE_CACHE_LINE
+/* a prefetch distance of 2 cache-lines */
+#define CACHE_LINE_SIZE     32
+#else
+/* a prefetch distance of 4 cache-lines works best experimentally */
+#define CACHE_LINE_SIZE     64
+#endif
+
+ENTRY(memcpy)
+        .save       {r0, lr}
+        /* start preloading as early as possible */
+        pld         [r1, #(CACHE_LINE_SIZE * 0)]
+        stmfd       sp!, {r0, lr}
+        pld         [r1, #(CACHE_LINE_SIZE * 1)]
+
+/* If Neon supports unaligned access then remove the align code,
+ * unless a size limit has been specified.
+ */
+#ifndef NEON_UNALIGNED_ACCESS
+        /* do we have at least 16-bytes to copy (needed for alignment below) */
+        cmp         r2, #16
+        blo         5f
+
+        /* check if buffers are aligned. If so, run arm-only version */
+        eor         r3, r0, r1
+        ands        r3, r3, #0x3
+        beq         11f
+
+        /* align destination to cache-line for the write-buffer */
+        rsb         r3, r0, #0
+        ands        r3, r3, #0xF
+        beq         2f
+
+        /* copy up to 15-bytes (count in r3) */
+        sub         r2, r2, r3
+        movs        ip, r3, lsl #31
+        ldrmib      lr, [r1], #1
+        strmib      lr, [r0], #1
+        ldrcsb      ip, [r1], #1
+        ldrcsb      lr, [r1], #1
+        strcsb      ip, [r0], #1
+        strcsb      lr, [r0], #1
+        movs        ip, r3, lsl #29
+        bge         1f
+        // copies 4 bytes, destination 32-bits aligned
+        vld4.8      {d0[0], d1[0], d2[0], d3[0]}, [r1]!
+        vst4.8      {d0[0], d1[0], d2[0], d3[0]}, [r0, :32]!
+1:      bcc         2f
+        // copies 8 bytes, destination 64-bits aligned
+        vld1.8      {d0}, [r1]!
+        vst1.8      {d0}, [r0, :64]!
+2:
+        /* preload immediately the next cache line, which we may need */
+        pld         [r1, #(CACHE_LINE_SIZE * 0)]
+        pld         [r1, #(CACHE_LINE_SIZE * 1)]
+
+#ifdef HAVE_32_BYTE_CACHE_LINE
+        /* make sure we have at least 32 bytes to copy */
+        subs        r2, r2, #32
+        blo         4f
+
+        /* preload all the cache lines we need.
+         * NOTE: the number of pld below depends on PREFETCH_DISTANCE,
+         * ideally would would increase the distance in the main loop to
+         * avoid the goofy code below. In practice this doesn't seem to make
+         * a big difference.
+         */
+        pld         [r1, #(PREFETCH_DISTANCE)]
+
+1:      /* The main loop copies 32 bytes at a time */
+        vld1.8      {d0  - d3},   [r1]!
+        pld         [r1, #(PREFETCH_DISTANCE)]
+        subs        r2, r2, #32
+        vst1.8      {d0  - d3},   [r0, :128]!
+        bhs         1b
+#else
+        /* make sure we have at least 64 bytes to copy */
+        subs        r2, r2, #64
+        blo         2f
+
+        /* preload all the cache lines we need. */
+        pld         [r1, #(CACHE_LINE_SIZE * 2)]
+        pld         [r1, #(CACHE_LINE_SIZE * 3)]
+
+1:      /* The main loop copies 64 bytes at a time */
+        vld1.8      {d0 - d3}, [r1]!
+        vld1.8      {d4 - d7}, [r1]!
+#ifdef  HAVE_32_BYTE_CACHE_LINE
+        pld         [r1, #(CACHE_LINE_SIZE * 2)]
+        pld         [r1, #(CACHE_LINE_SIZE * 3)]
+#else
+        pld         [r1, #(CACHE_LINE_SIZE * 3)]
+#endif
+        subs        r2, r2, #64
+        vst1.8      {d0 - d3}, [r0, :128]!
+        vst1.8      {d4 - d7}, [r0, :128]!
+        bhs         1b
+
+2:      /* fix-up the remaining count and make sure we have >= 32 bytes left */
+        add         r2, r2, #64
+        subs        r2, r2, #32
+        blo         4f
+
+3:      /* 32 bytes at a time. These cache lines were already preloaded */
+        vld1.8      {d0 - d3}, [r1]!
+        subs        r2, r2, #32
+        vst1.8      {d0 - d3}, [r0, :128]!
+        bhs         3b
+#endif
+4:      /* less than 32 left */
+        add         r2, r2, #32
+        tst         r2, #0x10
+        beq         5f
+        // copies 16 bytes, 128-bits aligned
+        vld1.8      {d0, d1}, [r1]!
+        vst1.8      {d0, d1}, [r0, :128]!
+5:      /* copy up to 15-bytes (count in r2) */
+        movs        ip, r2, lsl #29
+        bcc         1f
+        vld1.8      {d0}, [r1]!
+        vst1.8      {d0}, [r0]!
+1:      bge         2f
+        vld4.8      {d0[0], d1[0], d2[0], d3[0]}, [r1]!
+        vst4.8      {d0[0], d1[0], d2[0], d3[0]}, [r0]!
+2:      movs        ip, r2, lsl #31
+        ldrmib      r3, [r1], #1
+        ldrcsb      ip, [r1], #1
+        ldrcsb      lr, [r1], #1
+        strmib      r3, [r0], #1
+        strcsb      ip, [r0], #1
+        strcsb      lr, [r0], #1
+
+        ldmfd       sp!, {r0, lr}
+        bx          lr
+
+#else   /* NEON_UNALIGNED_ACCESS */
+
+        // Check so divider is at least 16 bytes, needed for alignment code.
+        cmp         r2, #16
+        blo         5f
+
+#ifdef NEON_MEMCPY_ALIGNMENT_DIVIDER
+        /* Check the upper size limit for Neon unaligned memory access in memcpy */
+#if NEON_MEMCPY_ALIGNMENT_DIVIDER >= 16
+        cmp         r2, #NEON_MEMCPY_ALIGNMENT_DIVIDER
+        blo         3f
+#endif
+        /* check if buffers are aligned. If so, run arm-only version */
+        eor         r3, r0, r1
+        ands        r3, r3, #0x3
+        beq         11f
+
+        /* align destination to 16 bytes for the write-buffer */
+        rsb         r3, r0, #0
+        ands        r3, r3, #0xF
+        beq         3f
+
+        /* copy up to 15-bytes (count in r3) */
+        sub         r2, r2, r3
+        movs        ip, r3, lsl #31
+        ldrmib      lr, [r1], #1
+        strmib      lr, [r0], #1
+        ldrcsb      ip, [r1], #1
+        ldrcsb      lr, [r1], #1
+        strcsb      ip, [r0], #1
+        strcsb      lr, [r0], #1
+        movs        ip, r3, lsl #29
+        bge         1f
+        // copies 4 bytes, destination 32-bits aligned
+        vld1.32     {d0[0]}, [r1]!
+        vst1.32     {d0[0]}, [r0, :32]!
+1:      bcc         2f
+        // copies 8 bytes, destination 64-bits aligned
+        vld1.8      {d0}, [r1]!
+        vst1.8      {d0}, [r0, :64]!
+2:
+        /* preload immediately the next cache line, which we may need */
+        pld         [r1, #(CACHE_LINE_SIZE * 0)]
+        pld         [r1, #(CACHE_LINE_SIZE * 1)]
+3:
+#endif
+        /* make sure we have at least 64 bytes to copy */
+        subs        r2, r2, #64
+        blo         2f
+
+        /* preload all the cache lines we need */
+        pld         [r1, #(CACHE_LINE_SIZE * 2)]
+        pld         [r1, #(CACHE_LINE_SIZE * 3)]
+
+1:      /* The main loop copies 64 bytes at a time */
+        vld1.8      {d0 - d3}, [r1]!
+        vld1.8      {d4 - d7}, [r1]!
+#ifdef  HAVE_32_BYTE_CACHE_LINE
+        pld         [r1, #(CACHE_LINE_SIZE * 2)]
+        pld         [r1, #(CACHE_LINE_SIZE * 3)]
+#else
+        pld         [r1, #(CACHE_LINE_SIZE * 3)]
+#endif
+        subs        r2, r2, #64
+        vst1.8      {d0 - d3}, [r0]!
+        vst1.8      {d4 - d7}, [r0]!
+        bhs         1b
+
+2:      /* fix-up the remaining count and make sure we have >= 32 bytes left */
+        add         r2, r2, #64
+        subs        r2, r2, #32
+        blo         4f
+
+3:      /* 32 bytes at a time. These cache lines were already preloaded */
+        vld1.8      {d0 - d3}, [r1]!
+        subs        r2, r2, #32
+        vst1.8      {d0 - d3}, [r0]!
+        bhs         3b
+
+4:      /* less than 32 left */
+        add         r2, r2, #32
+        tst         r2, #0x10
+        beq         5f
+        // copies 16 bytes, 128-bits aligned
+        vld1.8      {d0, d1}, [r1]!
+        vst1.8      {d0, d1}, [r0]!
+5:      /* copy up to 15-bytes (count in r2) */
+        movs        ip, r2, lsl #29
+        bcc         1f
+        vld1.8      {d0}, [r1]!
+        vst1.8      {d0}, [r0]!
+1:      bge         2f
+        vld1.32     {d0[0]}, [r1]!
+        vst1.32     {d0[0]}, [r0]!
+2:      movs        ip, r2, lsl #31
+        ldrmib      r3, [r1], #1
+        ldrcsb      ip, [r1], #1
+        ldrcsb      lr, [r1], #1
+        strmib      r3, [r0], #1
+        strcsb      ip, [r0], #1
+        strcsb      lr, [r0], #1
+
+        ldmfd       sp!, {r0, lr}
+        bx          lr
+#endif  /* NEON_UNALIGNED_ACCESS */
+11:
+        /* Simple arm-only copy loop to handle aligned copy operations */
+        stmfd       sp!, {r4, r5, r6, r7, r8}
+        pld         [r1, #(CACHE_LINE_SIZE * 2)]
+
+        /* Check alignment */
+        rsb         r3, r1, #0
+        ands        r3, #3
+        beq         2f
+
+        /* 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
+         * stall 2 cycles.
+         */
+        movs        r12, r3, lsl #31
+        sub         r2, r2, r3      /* we know that r3 <= r2 because r2 >= 4 */
+        ldrmib      r3, [r1], #1
+        ldrcsb      r4, [r1], #1
+        ldrcsb      r5, [r1], #1
+        strmib      r3, [r0], #1
+        strcsb      r4, [r0], #1
+        strcsb      r5, [r0], #1
+2:
+        subs        r2, #32
+        blt         5f
+        pld         [r1, #(CACHE_LINE_SIZE * 3)]
+3:      /* Main copy loop, copying 32 bytes at a time */
+        pld         [r1, #(CACHE_LINE_SIZE * 4)]
+        ldmia       r1!, {r3, r4, r5, r6, r7, r8, r12, lr}
+        subs        r2, r2, #32
+        stmia       r0!, {r3, r4, r5, r6, r7, r8, r12, lr}
+        bge         3b
+5:      /* Handle any remaining bytes */
+        adds        r2, #32
+        beq         6f
+
+        movs        r12, r2, lsl #28
+        ldmcsia     r1!, {r3, r4, r5, r6}   /* 16 bytes */
+        ldmmiia     r1!, {r7, r8}           /*  8 bytes */
+        stmcsia     r0!, {r3, r4, r5, r6}
+        stmmiia     r0!, {r7, r8}
+        movs        r12, r2, lsl #30
+        ldrcs       r3, [r1], #4            /*  4 bytes */
+        ldrmih      r4, [r1], #2            /*  2 bytes */
+        strcs       r3, [r0], #4
+        strmih      r4, [r0], #2
+        tst         r2, #0x1
+        ldrneb      r3, [r1]                /*  last byte  */
+        strneb      r3, [r0]
+6:
+        ldmfd       sp!, {r4, r5, r6, r7, r8}
+        ldmfd       sp!, {r0, pc}
+END(memcpy)
+
+
+#else   /* __ARM_ARCH__ < 7 */
+
+
+		/*
+		 * Optimized memcpy() for ARM.
+         *
+		 * note that memcpy() always returns the destination pointer,
+		 * so we have to preserve R0.
+		 */
+
+ENTRY(memcpy)
+		/* The stack must always be 64-bits aligned to be compliant with the
+		 * 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}
+        /* Making room for r5-r11 which will be spilled later */
+        .pad        #28
+        sub         sp, sp, #28
+
+        // preload the destination because we'll align it to a cache line
+        // with small writes. Also start the source "pump".
+        pld         [r0, #0]
+        pld         [r1, #0]
+        pld         [r1, #32]
+
+		/* it simplifies things to take care of len<4 early */
+		cmp			r2, #4
+		blo			copy_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
+
+		/* 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
+		 * stall 2 cycles.
+		 */
+		movs		r12, r3, lsl #31
+		sub			r2, r2, r3		/* we know that r3 <= r2 because r2 >= 4 */
+		ldrmib		r3, [r1], #1
+		ldrcsb		r4, [r1], #1
+		ldrcsb		r12,[r1], #1
+        strmib		r3, [r0], #1
+		strcsb		r4, [r0], #1
+		strcsb		r12,[r0], #1
+
+src_aligned:
+
+		/* see if src and dst are aligned together (congruent) */
+		eor			r12, r0, r1
+		tst			r12, #3
+		bne			non_congruent
+
+        /* Use post-incriment mode for stm to spill r5-r11 to reserved stack
+         * frame. Don't update sp.
+         */
+        stmea		sp, {r5-r11}
+
+		/* align the destination to a cache-line */
+		rsb         r3, r0, #0
+		ands		r3, r3, #0x1C
+		beq         congruent_aligned32
+		cmp         r3, r2
+		andhi		r3, r2, #0x1C
+
+		/* conditionnaly copies 0 to 7 words (length in r3) */
+		movs		r12, r3, lsl #28
+		ldmcsia		r1!, {r4, r5, r6, r7}	/* 16 bytes */
+		ldmmiia		r1!, {r8, r9}			/*  8 bytes */
+		stmcsia		r0!, {r4, r5, r6, r7}
+		stmmiia		r0!, {r8, r9}
+		tst         r3, #0x4
+		ldrne		r10,[r1], #4			/*  4 bytes */
+		strne		r10,[r0], #4
+		sub         r2, r2, r3
+
+congruent_aligned32:
+		/*
+		 * here source is aligned to 32 bytes.
+		 */
+
+cached_aligned32:
+        subs        r2, r2, #32
+        blo         less_than_32_left
+
+        /*
+         * We preload a cache-line up to 64 bytes ahead. On the 926, this will
+         * stall only until the requested world is fetched, but the linefill
+         * continues in the the background.
+         * While the linefill is going, we write our previous cache-line
+         * into the write-buffer (which should have some free space).
+         * When the linefill is done, the writebuffer will
+         * start dumping its content into memory
+         *
+         * While all this is going, we then load a full cache line into
+         * 8 registers, this cache line should be in the cache by now
+         * (or partly in the cache).
+         *
+         * This code should work well regardless of the source/dest alignment.
+         *
+         */
+
+        // Align the preload register to a cache-line because the cpu does
+        // "critical word first" (the first word requested is loaded first).
+        bic         r12, r1, #0x1F
+        add         r12, r12, #64
+
+1:      ldmia       r1!, { r4-r11 }
+        pld         [r12, #64]
+        subs        r2, r2, #32
+
+        // NOTE: if r12 is more than 64 ahead of r1, the following ldrhi
+        // for ARM9 preload will not be safely guarded by the preceding subs.
+        // When it is safely guarded the only possibility to have SIGSEGV here
+        // is because the caller overstates the length.
+        ldrhi       r3, [r12], #32      /* cheap ARM9 preload */
+        stmia       r0!, { r4-r11 }
+		bhs         1b
+
+        add         r2, r2, #32
+
+
+
+
+less_than_32_left:
+		/*
+		 * less than 32 bytes left at this point (length in r2)
+		 */
+
+		/* skip all this if there is nothing to do, which should
+		 * be a common case (if not executed the code below takes
+		 * about 16 cycles)
+		 */
+		tst			r2, #0x1F
+		beq			1f
+
+		/* conditionnaly copies 0 to 31 bytes */
+		movs		r12, r2, lsl #28
+		ldmcsia		r1!, {r4, r5, r6, r7}	/* 16 bytes */
+		ldmmiia		r1!, {r8, r9}			/*  8 bytes */
+		stmcsia		r0!, {r4, r5, r6, r7}
+		stmmiia		r0!, {r8, r9}
+		movs		r12, r2, lsl #30
+		ldrcs		r3, [r1], #4			/*  4 bytes */
+		ldrmih		r4, [r1], #2			/*  2 bytes */
+		strcs		r3, [r0], #4
+		strmih		r4, [r0], #2
+		tst         r2, #0x1
+		ldrneb		r3, [r1]				/*  last byte  */
+		strneb		r3, [r0]
+
+		/* we're done! restore everything and return */
+1:		ldmfd		sp!, {r5-r11}
+		ldmfd		sp!, {r0, r4, lr}
+		bx			lr
+
+		/********************************************************************/
+
+non_congruent:
+		/*
+		 * here source is aligned to 4 bytes
+		 * but destination is not.
+		 *
+		 * in the code below r2 is the number of bytes read
+		 * (the number of bytes written is always smaller, because we have
+		 * partial words in the shift queue)
+		 */
+		cmp			r2, #4
+		blo			copy_last_3_and_return
+
+        /* Use post-incriment mode for stm to spill r5-r11 to reserved stack
+         * frame. Don't update sp.
+         */
+        stmea		sp, {r5-r11}
+
+		/* compute shifts needed to align src to dest */
+		rsb			r5, r0, #0
+		and			r5, r5, #3			/* r5 = # bytes in partial words */
+		mov			r12, r5, lsl #3		/* r12 = right */
+		rsb			lr, r12, #32		/* lr = left  */
+
+		/* read the first word */
+		ldr			r3, [r1], #4
+		sub			r2, r2, #4
+
+		/* write a partial word (0 to 3 bytes), such that destination
+		 * becomes aligned to 32 bits (r5 = nb of words to copy for alignment)
+		 */
+		movs		r5, r5, lsl #31
+		strmib		r3, [r0], #1
+		movmi		r3, r3, lsr #8
+		strcsb		r3, [r0], #1
+		movcs		r3, r3, lsr #8
+		strcsb		r3, [r0], #1
+		movcs		r3, r3, lsr #8
+
+		cmp			r2, #4
+		blo			partial_word_tail
+
+		/* Align destination to 32 bytes (cache line boundary) */
+1:		tst			r0, #0x1c
+		beq			2f
+		ldr			r5, [r1], #4
+		sub         r2, r2, #4
+		orr			r4, r3, r5,		lsl lr
+		mov			r3, r5,			lsr r12
+		str			r4, [r0], #4
+        cmp         r2, #4
+		bhs			1b
+		blo			partial_word_tail
+
+		/* copy 32 bytes at a time */
+2:		subs		r2, r2, #32
+		blo			less_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
+		 * performance hit.
+		 */
+
+        cmp			r12, #24
+		beq			loop24
+		cmp			r12, #8
+		beq			loop8
+
+loop16:
+        ldr         r12, [r1], #4
+1:      mov         r4, r12
+		ldmia		r1!, {   r5,r6,r7,  r8,r9,r10,r11}
+        pld         [r1, #64]
+        subs        r2, r2, #32
+        ldrhs       r12, [r1], #4
+		orr			r3, r3, r4,		lsl #16
+		mov			r4, r4,			lsr #16
+		orr			r4, r4, r5,		lsl #16
+		mov			r5, r5,			lsr #16
+		orr			r5, r5, r6,		lsl #16
+		mov			r6, r6,			lsr #16
+		orr			r6, r6, r7,		lsl #16
+		mov			r7, r7,			lsr #16
+		orr			r7, r7, r8,		lsl #16
+		mov			r8, r8,			lsr #16
+		orr			r8, r8, r9,		lsl #16
+		mov			r9, r9,			lsr #16
+		orr			r9, r9, r10,	lsl #16
+		mov			r10, r10,		lsr #16
+		orr			r10, r10, r11,	lsl #16
+		stmia		r0!, {r3,r4,r5,r6, r7,r8,r9,r10}
+		mov			r3, r11,		lsr #16
+		bhs			1b
+		b			less_than_thirtytwo
+
+loop8:
+        ldr         r12, [r1], #4
+1:      mov         r4, r12
+		ldmia		r1!, {   r5,r6,r7,  r8,r9,r10,r11}
+        pld         [r1, #64]
+		subs		r2, r2, #32
+        ldrhs       r12, [r1], #4
+		orr			r3, r3, r4,		lsl #24
+		mov			r4, r4,			lsr #8
+		orr			r4, r4, r5,		lsl #24
+		mov			r5, r5,			lsr #8
+		orr			r5, r5, r6,		lsl #24
+		mov			r6, r6,			lsr #8
+		orr			r6, r6, r7,		lsl #24
+		mov			r7, r7,			lsr #8
+		orr			r7, r7, r8,		lsl #24
+		mov			r8, r8,			lsr #8
+		orr			r8, r8, r9,		lsl #24
+		mov			r9, r9,			lsr #8
+		orr			r9, r9, r10,	lsl #24
+		mov			r10, r10,		lsr #8
+		orr			r10, r10, r11,	lsl #24
+		stmia		r0!, {r3,r4,r5,r6, r7,r8,r9,r10}
+		mov			r3, r11,		lsr #8
+		bhs			1b
+		b			less_than_thirtytwo
+
+loop24:
+        ldr         r12, [r1], #4
+1:      mov         r4, r12
+		ldmia		r1!, {   r5,r6,r7,  r8,r9,r10,r11}
+        pld         [r1, #64]
+		subs		r2, r2, #32
+        ldrhs       r12, [r1], #4
+		orr			r3, r3, r4,		lsl #8
+		mov			r4, r4,			lsr #24
+		orr			r4, r4, r5,		lsl #8
+		mov			r5, r5,			lsr #24
+		orr			r5, r5, r6,		lsl #8
+		mov			r6, r6,			lsr #24
+		orr			r6, r6, r7,		lsl #8
+		mov			r7, r7,			lsr #24
+		orr			r7, r7, r8,		lsl #8
+		mov			r8, r8,			lsr #24
+		orr			r8, r8, r9,		lsl #8
+		mov			r9, r9,			lsr #24
+		orr			r9, r9, r10,	lsl #8
+		mov			r10, r10,		lsr #24
+		orr			r10, r10, r11,	lsl #8
+		stmia		r0!, {r3,r4,r5,r6, r7,r8,r9,r10}
+		mov			r3, r11,		lsr #24
+		bhs			1b
+
+
+less_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
+
+1:		ldr			r5, [r1], #4
+		sub         r2, r2, #4
+		orr			r4, r3, r5,		lsl lr
+		mov			r3,	r5,			lsr r12
+		str			r4, [r0], #4
+        cmp         r2, #4
+		bhs			1b
+
+partial_word_tail:
+		/* we have a partial word in the input buffer */
+		movs		r5, lr, lsl #(31-3)
+		strmib		r3, [r0], #1
+		movmi		r3, r3, lsr #8
+		strcsb		r3, [r0], #1
+		movcs		r3, r3, lsr #8
+		strcsb		r3, [r0], #1
+
+		/* Refill spilled registers from the stack. Don't update sp. */
+		ldmfd		sp, {r5-r11}
+
+copy_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
+		ldrcsb		r12,[r1]
+		strmib		r2, [r0], #1
+		strcsb		r3, [r0], #1
+		strcsb		r12,[r0]
+
+        /* we're done! restore sp and spilled registers and return */
+        add         sp,  sp, #28
+		ldmfd		sp!, {r0, r4, lr}
+		bx			lr
+END(memcpy)
+
+
+#endif    /* __ARM_ARCH__ < 7 */

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

@@ -0,0 +1,614 @@
+/* Copyright (c) 2013, 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 Linaro Limited 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.
+
+ */
+
+/*
+   This memcpy routine is optimised for Cortex-A15 cores and takes advantage
+   of VFP or NEON when built with the appropriate flags.
+
+   Assumptions:
+
+    ARMv6 (ARMv7-a if using Neon)
+    ARM state
+    Unaligned accesses
+    LDRD/STRD support unaligned word accesses
+
+ */
+
+#include <machine/cpu-features.h>
+#include <private/bionic_asm.h>
+
+	.syntax unified
+	/* This implementation requires ARM state.  */
+	.arm
+
+#ifdef __ARM_NEON__
+
+	.fpu	neon
+	.arch	armv7-a
+# define FRAME_SIZE	4
+# define USE_VFP
+# define USE_NEON
+
+#elif !defined (__SOFTFP__)
+
+	.arch	armv6
+	.fpu	vfpv2
+# define FRAME_SIZE	32
+# define USE_VFP
+
+#else
+	.arch	armv6
+# define FRAME_SIZE    32
+
+#endif
+
+/* Old versions of GAS incorrectly implement the NEON align semantics.  */
+#ifdef BROKEN_ASM_NEON_ALIGN
+#define ALIGN(addr, align) addr,:align
+#else
+#define ALIGN(addr, align) addr:align
+#endif
+
+#define PC_OFFSET	8	/* PC pipeline compensation.  */
+#define INSN_SIZE	4
+
+/* Call parameters.  */
+#define dstin	r0
+#define src	r1
+#define count	r2
+
+/* Locals.  */
+#define tmp1	r3
+#define dst	ip
+#define tmp2	r10
+
+#ifndef USE_NEON
+/* For bulk copies using GP registers.  */
+#define	A_l	r2		/* Call-clobbered.  */
+#define	A_h	r3		/* Call-clobbered.  */
+#define	B_l	r4
+#define	B_h	r5
+#define	C_l	r6
+#define	C_h	r7
+#define	D_l	r8
+#define	D_h	r9
+#endif
+
+/* Number of lines ahead to pre-fetch data.  If you change this the code
+   below will need adjustment to compensate.  */
+
+#define prefetch_lines	5
+
+#ifdef USE_VFP
+	.macro	cpy_line_vfp vreg, base
+	vstr	\vreg, [dst, #\base]
+	vldr	\vreg, [src, #\base]
+	vstr	d0, [dst, #\base + 8]
+	vldr	d0, [src, #\base + 8]
+	vstr	d1, [dst, #\base + 16]
+	vldr	d1, [src, #\base + 16]
+	vstr	d2, [dst, #\base + 24]
+	vldr	d2, [src, #\base + 24]
+	vstr	\vreg, [dst, #\base + 32]
+	vldr	\vreg, [src, #\base + prefetch_lines * 64 - 32]
+	vstr	d0, [dst, #\base + 40]
+	vldr	d0, [src, #\base + 40]
+	vstr	d1, [dst, #\base + 48]
+	vldr	d1, [src, #\base + 48]
+	vstr	d2, [dst, #\base + 56]
+	vldr	d2, [src, #\base + 56]
+	.endm
+
+	.macro	cpy_tail_vfp vreg, base
+	vstr	\vreg, [dst, #\base]
+	vldr	\vreg, [src, #\base]
+	vstr	d0, [dst, #\base + 8]
+	vldr	d0, [src, #\base + 8]
+	vstr	d1, [dst, #\base + 16]
+	vldr	d1, [src, #\base + 16]
+	vstr	d2, [dst, #\base + 24]
+	vldr	d2, [src, #\base + 24]
+	vstr	\vreg, [dst, #\base + 32]
+	vstr	d0, [dst, #\base + 40]
+	vldr	d0, [src, #\base + 40]
+	vstr	d1, [dst, #\base + 48]
+	vldr	d1, [src, #\base + 48]
+	vstr	d2, [dst, #\base + 56]
+	vldr	d2, [src, #\base + 56]
+	.endm
+#endif
+
+	.p2align 6
+ENTRY(memcpy)
+
+	mov	dst, dstin	/* Preserve dstin, we need to return it.  */
+	cmp	count, #64
+	bge	.Lcpy_not_short
+	/* Deal with small copies quickly by dropping straight into the
+	   exit block.  */
+
+.Ltail63unaligned:
+#ifdef USE_NEON
+	and	tmp1, count, #0x38
+	rsb	tmp1, tmp1, #(56 - PC_OFFSET + INSN_SIZE)
+	add	pc, pc, tmp1
+	vld1.8	{d0}, [src]!	/* 14 words to go.  */
+	vst1.8	{d0}, [dst]!
+	vld1.8	{d0}, [src]!	/* 12 words to go.  */
+	vst1.8	{d0}, [dst]!
+	vld1.8	{d0}, [src]!	/* 10 words to go.  */
+	vst1.8	{d0}, [dst]!
+	vld1.8	{d0}, [src]!	/* 8 words to go.  */
+	vst1.8	{d0}, [dst]!
+	vld1.8	{d0}, [src]!	/* 6 words to go.  */
+	vst1.8	{d0}, [dst]!
+	vld1.8	{d0}, [src]!	/* 4 words to go.  */
+	vst1.8	{d0}, [dst]!
+	vld1.8	{d0}, [src]!	/* 2 words to go.  */
+	vst1.8	{d0}, [dst]!
+
+	tst	count, #4
+	ldrne	tmp1, [src], #4
+	strne	tmp1, [dst], #4
+#else
+	/* Copy up to 15 full words of data.  May not be aligned.  */
+	/* Cannot use VFP for unaligned data.  */
+	and	tmp1, count, #0x3c
+	add	dst, dst, tmp1
+	add	src, src, tmp1
+	rsb	tmp1, tmp1, #(60 - PC_OFFSET/2 + INSN_SIZE/2)
+	/* Jump directly into the sequence below at the correct offset.  */
+	add	pc, pc, tmp1, lsl #1
+
+	ldr	tmp1, [src, #-60]	/* 15 words to go.  */
+	str	tmp1, [dst, #-60]
+
+	ldr	tmp1, [src, #-56]	/* 14 words to go.  */
+	str	tmp1, [dst, #-56]
+	ldr	tmp1, [src, #-52]
+	str	tmp1, [dst, #-52]
+
+	ldr	tmp1, [src, #-48]	/* 12 words to go.  */
+	str	tmp1, [dst, #-48]
+	ldr	tmp1, [src, #-44]
+	str	tmp1, [dst, #-44]
+
+	ldr	tmp1, [src, #-40]	/* 10 words to go.  */
+	str	tmp1, [dst, #-40]
+	ldr	tmp1, [src, #-36]
+	str	tmp1, [dst, #-36]
+
+	ldr	tmp1, [src, #-32]	/* 8 words to go.  */
+	str	tmp1, [dst, #-32]
+	ldr	tmp1, [src, #-28]
+	str	tmp1, [dst, #-28]
+
+	ldr	tmp1, [src, #-24]	/* 6 words to go.  */
+	str	tmp1, [dst, #-24]
+	ldr	tmp1, [src, #-20]
+	str	tmp1, [dst, #-20]
+
+	ldr	tmp1, [src, #-16]	/* 4 words to go.  */
+	str	tmp1, [dst, #-16]
+	ldr	tmp1, [src, #-12]
+	str	tmp1, [dst, #-12]
+
+	ldr	tmp1, [src, #-8]	/* 2 words to go.  */
+	str	tmp1, [dst, #-8]
+	ldr	tmp1, [src, #-4]
+	str	tmp1, [dst, #-4]
+#endif
+
+	lsls	count, count, #31
+	ldrhcs	tmp1, [src], #2
+	ldrbne	src, [src]		/* Src is dead, use as a scratch.  */
+	strhcs	tmp1, [dst], #2
+	strbne	src, [dst]
+	bx	lr
+
+.Lcpy_not_short:
+	/* At least 64 bytes to copy, but don't know the alignment yet.  */
+	str	tmp2, [sp, #-FRAME_SIZE]!
+	and	tmp2, src, #7
+	and	tmp1, dst, #7
+	cmp	tmp1, tmp2
+	bne	.Lcpy_notaligned
+
+#ifdef USE_VFP
+	/* Magic dust alert!  Force VFP on Cortex-A9.  Experiments show
+	   that the FP pipeline is much better at streaming loads and
+	   stores.  This is outside the critical loop.  */
+	vmov.f32	s0, s0
+#endif
+
+	/* SRC and DST have the same mutual 32-bit alignment, but we may
+	   still need to pre-copy some bytes to get to natural alignment.
+	   We bring DST into full 64-bit alignment.  */
+	lsls	tmp2, dst, #29
+	beq	1f
+	rsbs	tmp2, tmp2, #0
+	sub	count, count, tmp2, lsr #29
+	ldrmi	tmp1, [src], #4
+	strmi	tmp1, [dst], #4
+	lsls	tmp2, tmp2, #2
+	ldrhcs	tmp1, [src], #2
+	ldrbne	tmp2, [src], #1
+	strhcs	tmp1, [dst], #2
+	strbne	tmp2, [dst], #1
+
+1:
+	subs	tmp2, count, #64	/* Use tmp2 for count.  */
+	blt	.Ltail63aligned
+
+	cmp	tmp2, #512
+	bge	.Lcpy_body_long
+
+.Lcpy_body_medium:			/* Count in tmp2.  */
+#ifdef USE_VFP
+1:
+	vldr	d0, [src, #0]
+	subs	tmp2, tmp2, #64
+	vldr	d1, [src, #8]
+	vstr	d0, [dst, #0]
+	vldr	d0, [src, #16]
+	vstr	d1, [dst, #8]
+	vldr	d1, [src, #24]
+	vstr	d0, [dst, #16]
+	vldr	d0, [src, #32]
+	vstr	d1, [dst, #24]
+	vldr	d1, [src, #40]
+	vstr	d0, [dst, #32]
+	vldr	d0, [src, #48]
+	vstr	d1, [dst, #40]
+	vldr	d1, [src, #56]
+	vstr	d0, [dst, #48]
+	add	src, src, #64
+	vstr	d1, [dst, #56]
+	add	dst, dst, #64
+	bge	1b
+	tst	tmp2, #0x3f
+	beq	.Ldone
+
+.Ltail63aligned:			/* Count in tmp2.  */
+	and	tmp1, tmp2, #0x38
+	add	dst, dst, tmp1
+	add	src, src, tmp1
+	rsb	tmp1, tmp1, #(56 - PC_OFFSET + INSN_SIZE)
+	add	pc, pc, tmp1
+
+	vldr	d0, [src, #-56]	/* 14 words to go.  */
+	vstr	d0, [dst, #-56]
+	vldr	d0, [src, #-48]	/* 12 words to go.  */
+	vstr	d0, [dst, #-48]
+	vldr	d0, [src, #-40]	/* 10 words to go.  */
+	vstr	d0, [dst, #-40]
+	vldr	d0, [src, #-32]	/* 8 words to go.  */
+	vstr	d0, [dst, #-32]
+	vldr	d0, [src, #-24]	/* 6 words to go.  */
+	vstr	d0, [dst, #-24]
+	vldr	d0, [src, #-16]	/* 4 words to go.  */
+	vstr	d0, [dst, #-16]
+	vldr	d0, [src, #-8]	/* 2 words to go.  */
+	vstr	d0, [dst, #-8]
+#else
+	sub	src, src, #8
+	sub	dst, dst, #8
+1:
+	ldrd	A_l, A_h, [src, #8]
+	strd	A_l, A_h, [dst, #8]
+	ldrd	A_l, A_h, [src, #16]
+	strd	A_l, A_h, [dst, #16]
+	ldrd	A_l, A_h, [src, #24]
+	strd	A_l, A_h, [dst, #24]
+	ldrd	A_l, A_h, [src, #32]
+	strd	A_l, A_h, [dst, #32]
+	ldrd	A_l, A_h, [src, #40]
+	strd	A_l, A_h, [dst, #40]
+	ldrd	A_l, A_h, [src, #48]
+	strd	A_l, A_h, [dst, #48]
+	ldrd	A_l, A_h, [src, #56]
+	strd	A_l, A_h, [dst, #56]
+	ldrd	A_l, A_h, [src, #64]!
+	strd	A_l, A_h, [dst, #64]!
+	subs	tmp2, tmp2, #64
+	bge	1b
+	tst	tmp2, #0x3f
+	bne	1f
+	ldr	tmp2,[sp], #FRAME_SIZE
+	bx	lr
+1:
+	add	src, src, #8
+	add	dst, dst, #8
+
+.Ltail63aligned:			/* Count in tmp2.  */
+	/* Copy up to 7 d-words of data.  Similar to Ltail63unaligned, but
+	   we know that the src and dest are 32-bit aligned so we can use
+	   LDRD/STRD to improve efficiency.  */
+	/* TMP2 is now negative, but we don't care about that.  The bottom
+	   six bits still tell us how many bytes are left to copy.  */
+
+	and	tmp1, tmp2, #0x38
+	add	dst, dst, tmp1
+	add	src, src, tmp1
+	rsb	tmp1, tmp1, #(56 - PC_OFFSET + INSN_SIZE)
+	add	pc, pc, tmp1
+	ldrd	A_l, A_h, [src, #-56]	/* 14 words to go.  */
+	strd	A_l, A_h, [dst, #-56]
+	ldrd	A_l, A_h, [src, #-48]	/* 12 words to go.  */
+	strd	A_l, A_h, [dst, #-48]
+	ldrd	A_l, A_h, [src, #-40]	/* 10 words to go.  */
+	strd	A_l, A_h, [dst, #-40]
+	ldrd	A_l, A_h, [src, #-32]	/* 8 words to go.  */
+	strd	A_l, A_h, [dst, #-32]
+	ldrd	A_l, A_h, [src, #-24]	/* 6 words to go.  */
+	strd	A_l, A_h, [dst, #-24]
+	ldrd	A_l, A_h, [src, #-16]	/* 4 words to go.  */
+	strd	A_l, A_h, [dst, #-16]
+	ldrd	A_l, A_h, [src, #-8]	/* 2 words to go.  */
+	strd	A_l, A_h, [dst, #-8]
+
+#endif
+	tst	tmp2, #4
+	ldrne	tmp1, [src], #4
+	strne	tmp1, [dst], #4
+	lsls	tmp2, tmp2, #31		/* Count (tmp2) now dead. */
+	ldrhcs	tmp1, [src], #2
+	ldrbne	tmp2, [src]
+	strhcs	tmp1, [dst], #2
+	strbne	tmp2, [dst]
+
+.Ldone:
+	ldr	tmp2, [sp], #FRAME_SIZE
+	bx	lr
+
+.Lcpy_body_long:			/* Count in tmp2.  */
+
+	/* Long copy.  We know that there's at least (prefetch_lines * 64)
+	   bytes to go.  */
+#ifdef USE_VFP
+	/* Don't use PLD.  Instead, read some data in advance of the current
+	   copy position into a register.  This should act like a PLD
+	   operation but we won't have to repeat the transfer.  */
+
+	vldr	d3, [src, #0]
+	vldr	d4, [src, #64]
+	vldr	d5, [src, #128]
+	vldr	d6, [src, #192]
+	vldr	d7, [src, #256]
+
+	vldr	d0, [src, #8]
+	vldr	d1, [src, #16]
+	vldr	d2, [src, #24]
+	add	src, src, #32
+
+	subs	tmp2, tmp2, #prefetch_lines * 64 * 2
+	blt	2f
+1:
+	cpy_line_vfp	d3, 0
+	cpy_line_vfp	d4, 64
+	cpy_line_vfp	d5, 128
+	add	dst, dst, #3 * 64
+	add	src, src, #3 * 64
+	cpy_line_vfp	d6, 0
+	cpy_line_vfp	d7, 64
+	add	dst, dst, #2 * 64
+	add	src, src, #2 * 64
+	subs	tmp2, tmp2, #prefetch_lines * 64
+	bge	1b
+
+2:
+	cpy_tail_vfp	d3, 0
+	cpy_tail_vfp	d4, 64
+	cpy_tail_vfp	d5, 128
+	add	src, src, #3 * 64
+	add	dst, dst, #3 * 64
+	cpy_tail_vfp	d6, 0
+	vstr	d7, [dst, #64]
+	vldr	d7, [src, #64]
+	vstr	d0, [dst, #64 + 8]
+	vldr	d0, [src, #64 + 8]
+	vstr	d1, [dst, #64 + 16]
+	vldr	d1, [src, #64 + 16]
+	vstr	d2, [dst, #64 + 24]
+	vldr	d2, [src, #64 + 24]
+	vstr	d7, [dst, #64 + 32]
+	add	src, src, #96
+	vstr	d0, [dst, #64 + 40]
+	vstr	d1, [dst, #64 + 48]
+	vstr	d2, [dst, #64 + 56]
+	add	dst, dst, #128
+	add	tmp2, tmp2, #prefetch_lines * 64
+	b	.Lcpy_body_medium
+#else
+	/* Long copy.  Use an SMS style loop to maximize the I/O
+	   bandwidth of the core.  We don't have enough spare registers
+	   to synthesise prefetching, so use PLD operations.  */
+	/* Pre-bias src and dst.  */
+	sub	src, src, #8
+	sub	dst, dst, #8
+	pld	[src, #8]
+	pld	[src, #72]
+	subs	tmp2, tmp2, #64
+	pld	[src, #136]
+	ldrd	A_l, A_h, [src, #8]
+	strd	B_l, B_h, [sp, #8]
+	ldrd	B_l, B_h, [src, #16]
+	strd	C_l, C_h, [sp, #16]
+	ldrd	C_l, C_h, [src, #24]
+	strd	D_l, D_h, [sp, #24]
+	pld	[src, #200]
+	ldrd	D_l, D_h, [src, #32]!
+	b	1f
+	.p2align	6
+2:
+	pld	[src, #232]
+	strd	A_l, A_h, [dst, #40]
+	ldrd	A_l, A_h, [src, #40]
+	strd	B_l, B_h, [dst, #48]
+	ldrd	B_l, B_h, [src, #48]
+	strd	C_l, C_h, [dst, #56]
+	ldrd	C_l, C_h, [src, #56]
+	strd	D_l, D_h, [dst, #64]!
+	ldrd	D_l, D_h, [src, #64]!
+	subs	tmp2, tmp2, #64
+1:
+	strd	A_l, A_h, [dst, #8]
+	ldrd	A_l, A_h, [src, #8]
+	strd	B_l, B_h, [dst, #16]
+	ldrd	B_l, B_h, [src, #16]
+	strd	C_l, C_h, [dst, #24]
+	ldrd	C_l, C_h, [src, #24]
+	strd	D_l, D_h, [dst, #32]
+	ldrd	D_l, D_h, [src, #32]
+	bcs	2b
+	/* Save the remaining bytes and restore the callee-saved regs.  */
+	strd	A_l, A_h, [dst, #40]
+	add	src, src, #40
+	strd	B_l, B_h, [dst, #48]
+	ldrd	B_l, B_h, [sp, #8]
+	strd	C_l, C_h, [dst, #56]
+	ldrd	C_l, C_h, [sp, #16]
+	strd	D_l, D_h, [dst, #64]
+	ldrd	D_l, D_h, [sp, #24]
+	add	dst, dst, #72
+	tst	tmp2, #0x3f
+	bne	.Ltail63aligned
+	ldr	tmp2, [sp], #FRAME_SIZE
+	bx	lr
+#endif
+
+.Lcpy_notaligned:
+	pld	[src]
+	pld	[src, #64]
+	/* There's at least 64 bytes to copy, but there is no mutual
+	   alignment.  */
+	/* Bring DST to 64-bit alignment.  */
+	lsls	tmp2, dst, #29
+	pld	[src, #(2 * 64)]
+	beq	1f
+	rsbs	tmp2, tmp2, #0
+	sub	count, count, tmp2, lsr #29
+	ldrmi	tmp1, [src], #4
+	strmi	tmp1, [dst], #4
+	lsls	tmp2, tmp2, #2
+	ldrbne	tmp1, [src], #1
+	ldrhcs	tmp2, [src], #2
+	strbne	tmp1, [dst], #1
+	strhcs	tmp2, [dst], #2
+1:
+	pld	[src, #(3 * 64)]
+	subs	count, count, #64
+	ldrmi	tmp2, [sp], #FRAME_SIZE
+	bmi	.Ltail63unaligned
+	pld	[src, #(4 * 64)]
+
+#ifdef USE_NEON
+	vld1.8	{d0-d3}, [src]!
+	vld1.8	{d4-d7}, [src]!
+	subs	count, count, #64
+	bmi	2f
+1:
+	pld	[src, #(4 * 64)]
+	vst1.8	{d0-d3}, [ALIGN (dst, 64)]!
+	vld1.8	{d0-d3}, [src]!
+	vst1.8	{d4-d7}, [ALIGN (dst, 64)]!
+	vld1.8	{d4-d7}, [src]!
+	subs	count, count, #64
+	bpl	1b
+2:
+	vst1.8	{d0-d3}, [ALIGN (dst, 64)]!
+	vst1.8	{d4-d7}, [ALIGN (dst, 64)]!
+	ands	count, count, #0x3f
+#else
+	/* Use an SMS style loop to maximize the I/O bandwidth.  */
+	sub	src, src, #4
+	sub	dst, dst, #8
+	subs	tmp2, count, #64	/* Use tmp2 for count.  */
+	ldr	A_l, [src, #4]
+	ldr	A_h, [src, #8]
+	strd	B_l, B_h, [sp, #8]
+	ldr	B_l, [src, #12]
+	ldr	B_h, [src, #16]
+	strd	C_l, C_h, [sp, #16]
+	ldr	C_l, [src, #20]
+	ldr	C_h, [src, #24]
+	strd	D_l, D_h, [sp, #24]
+	ldr	D_l, [src, #28]
+	ldr	D_h, [src, #32]!
+	b	1f
+	.p2align	6
+2:
+	pld	[src, #(5 * 64) - (32 - 4)]
+	strd	A_l, A_h, [dst, #40]
+	ldr	A_l, [src, #36]
+	ldr	A_h, [src, #40]
+	strd	B_l, B_h, [dst, #48]
+	ldr	B_l, [src, #44]
+	ldr	B_h, [src, #48]
+	strd	C_l, C_h, [dst, #56]
+	ldr	C_l, [src, #52]
+	ldr	C_h, [src, #56]
+	strd	D_l, D_h, [dst, #64]!
+	ldr	D_l, [src, #60]
+	ldr	D_h, [src, #64]!
+	subs	tmp2, tmp2, #64
+1:
+	strd	A_l, A_h, [dst, #8]
+	ldr	A_l, [src, #4]
+	ldr	A_h, [src, #8]
+	strd	B_l, B_h, [dst, #16]
+	ldr	B_l, [src, #12]
+	ldr	B_h, [src, #16]
+	strd	C_l, C_h, [dst, #24]
+	ldr	C_l, [src, #20]
+	ldr	C_h, [src, #24]
+	strd	D_l, D_h, [dst, #32]
+	ldr	D_l, [src, #28]
+	ldr	D_h, [src, #32]
+	bcs	2b
+
+	/* Save the remaining bytes and restore the callee-saved regs.  */
+	strd	A_l, A_h, [dst, #40]
+	add	src, src, #36
+	strd	B_l, B_h, [dst, #48]
+	ldrd	B_l, B_h, [sp, #8]
+	strd	C_l, C_h, [dst, #56]
+	ldrd	C_l, C_h, [sp, #16]
+	strd	D_l, D_h, [dst, #64]
+	ldrd	D_l, D_h, [sp, #24]
+	add	dst, dst, #72
+	ands	count, tmp2, #0x3f
+#endif
+	ldr	tmp2, [sp], #FRAME_SIZE
+	bne	.Ltail63unaligned
+	bx	lr
+END(memcpy)

libc/arch-arm/bionic/setjmp.S

@@ -1,3 +1,6 @@
+/*	$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.
@@ -32,142 +35,119 @@
  */
 
 #include <private/bionic_asm.h>
+#include <machine/setjmp.h>
+#include <machine/cpu-features.h>
 
-// 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)
+/*
+ * 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.
+ */
 
 ENTRY(setjmp)
-  mov r1, #1
-  b sigsetjmp
+	/* Block all signals and retrieve the old signal mask */
+	stmfd	sp!, {r0, r14}
+	.cfi_def_cfa_offset 8
+	.cfi_rel_offset r0, 0
+	.cfi_rel_offset r14, 4
+	mov	r0, #0x00000000
+
+	bl	PIC_SYM(sigblock, PLT)
+	mov	r1, r0
+
+	ldmfd	sp!, {r0, r14}
+	.cfi_def_cfa_offset 0
+
+	/* Store signal mask */
+	str	r1, [r0, #(_JB_SIGMASK * 4)]
+
+	ldr	r1, .Lsetjmp_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)
 
-ENTRY(_setjmp)
-  mov r1, #0
-  b sigsetjmp
-END(_setjmp)
+.Lsetjmp_magic:
+	.word	_JB_MAGIC_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
+ENTRY(longjmp)
+	ldr	r2, .Lsetjmp_magic
+	ldr	r3, [r0, #(_JB_MAGIC * 4)]
+	teq	r2, r3
+	bne	botch
 
-  // 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, #0
-  bl sigblock
-  mov r1, r0
-  ldmfd sp!, {r0, r14}
-  .cfi_def_cfa_offset 0
+	/* Fetch signal mask */
+	ldr	r2, [r0, #(_JB_SIGMASK * 4)]
 
-  // Save the signal mask.
-  str r1, [r0, #(_JB_SIGMASK * 4)]
+	/* Set signal mask */
+	stmfd	sp!, {r0, r1, r14}
+	.cfi_def_cfa_offset 12
+	.cfi_rel_offset r0, 0
+	.cfi_rel_offset r1, 4
+	.cfi_rel_offset r14, 8
+	sub	sp, sp, #4	/* align the stack */
+	.cfi_adjust_cfa_offset 4
 
-1:
-  // Save core registers.
-  add r1, r0, #(_JB_CORE_BASE * 4)
-  stmia r1, {r4-r14}
+	mov	r0, r2
+	bl	PIC_SYM(sigsetmask, PLT)
 
-  // Save floating-point registers.
-  add r1, r0, #(_JB_FLOAT_BASE * 4)
-  vstmia  r1, {d8-d15}
+	add	sp, sp, #4	/* unalign the stack */
+	.cfi_adjust_cfa_offset -4
+	ldmfd	sp!, {r0, r1, r14}
+	.cfi_def_cfa_offset 0
 
-  // Save floating-point state.
-  fmrx r1, fpscr
-  str r1, [r0, #(_JB_FLOAT_STATE * 4)]
+#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 */
 
-  mov r0, #0
-  bx lr
-END(sigsetjmp)
+	/* Restore core registers */
+	add     r2, r0, #(_JB_CORE_BASE * 4)
+	ldmia   r2, {r4-r14}
 
-// 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
+	/* Validate sp and r14 */
+	teq	sp, #0
+	teqne	r14, #0
+	beq	botch
 
-  // 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.
-  .cfi_adjust_cfa_offset 4
+	/* Set return value */
 
-  ldr r0, [r0, #(_JB_SIGMASK * 4)]
-  bl sigsetmask
+	mov	r0, r1
+	teq	r0, #0x00000000
+	moveq	r0, #0x00000001
+        bx      lr
+#ifdef __ARM_26__
+	mov	r15, r14
+#else
+	mov	r15, r14
+#endif
 
-  add sp, sp, #4 // Unalign the stack.
-  .cfi_adjust_cfa_offset -4
-  ldmfd sp!, {r0, r1, r14}
-  .cfi_def_cfa_offset 0
-
-1:
-  // 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
-
-  // Restore core registers.
-  add r2, r0, #(_JB_CORE_BASE * 4)
-  ldmia r2, {r4-r14}
-
-  // Validate sp and r14.
-  teq sp, #0
-  teqne r14, #0
-  bleq longjmperror
-
-  // Set return value.
-  mov r0, r1
-  teq r0, #0
-  moveq r0, #1
-  bx lr
-END(siglongjmp)
-
-ALIAS_SYMBOL(longjmp, siglongjmp)
-ALIAS_SYMBOL(_longjmp, siglongjmp)
+	/* 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/sigsetjmp.S

@@ -0,0 +1,66 @@
+/*	$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/bionic/strcmp.S

@@ -0,0 +1,317 @@
+/*
+ * Copyright (c) 2011 The Android Open Source Project
+ * Copyright (c) 2008 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 <machine/cpu-features.h>
+#include <private/bionic_asm.h>
+
+	.text
+
+#ifdef __ARMEB__
+#define SHFT2LSB lsl
+#define SHFT2LSBEQ lsleq
+#define SHFT2MSB lsr
+#define SHFT2MSBEQ lsreq
+#define MSB 0x000000ff
+#define LSB 0xff000000
+#else
+#define SHFT2LSB lsr
+#define SHFT2LSBEQ lsreq
+#define SHFT2MSB lsl
+#define SHFT2MSBEQ lsleq
+#define MSB 0xff000000
+#define LSB 0x000000ff
+#endif
+
+#define magic1(REG) REG
+#define magic2(REG) REG, lsl #7
+
+ENTRY(strcmp)
+	pld	[r0, #0]
+	pld	[r1, #0]
+	eor	r2, r0, r1
+	tst	r2, #3
+
+	/* Strings not at same byte offset from a word boundary.  */
+	bne	.Lstrcmp_unaligned
+	ands	r2, r0, #3
+	bic	r0, r0, #3
+	bic	r1, r1, #3
+	ldr	ip, [r0], #4
+	it	eq
+	ldreq	r3, [r1], #4
+	beq	1f
+
+	/* Although s1 and s2 have identical initial alignment, they are
+	 * not currently word aligned.  Rather than comparing bytes,
+	 * make sure that any bytes fetched from before the addressed
+	 * bytes are forced to 0xff.  Then they will always compare
+	 * equal.
+	 */
+	eor	r2, r2, #3
+	lsl	r2, r2, #3
+	mvn	r3, #MSB
+	SHFT2LSB	r2, r3, r2
+	ldr	r3, [r1], #4
+	orr	ip, ip, r2
+	orr	r3, r3, r2
+1:
+	/* Load the 'magic' constant 0x01010101. */
+	str	r4, [sp, #-4]!
+	mov	r4, #1
+	orr	r4, r4, r4, lsl #8
+	orr	r4, r4, r4, lsl #16
+	.p2align	2
+4:
+	pld	[r0, #8]
+	pld	[r1, #8]
+	sub	r2, ip, magic1(r4)
+	cmp	ip, r3
+	itttt	eq
+
+	/* check for any zero bytes in first word */
+	biceq	r2, r2, ip
+	tsteq	r2, magic2(r4)
+	ldreq	ip, [r0], #4
+	ldreq	r3, [r1], #4
+	beq	4b
+2:
+	/* There's a zero or a different byte in the word */
+	SHFT2MSB	r0, ip, #24
+	SHFT2LSB	ip, ip, #8
+	cmp	r0, #1
+	it	cs
+	cmpcs	r0, r3, SHFT2MSB #24
+	it	eq
+	SHFT2LSBEQ r3, r3, #8
+	beq	2b
+	/* On a big-endian machine, r0 contains the desired byte in bits
+	 * 0-7; on a little-endian machine they are in bits 24-31.  In
+	 * both cases the other bits in r0 are all zero.  For r3 the
+	 * interesting byte is at the other end of the word, but the
+	 * other bits are not necessarily zero.  We need a signed result
+	 * representing the differnece in the unsigned bytes, so for the
+	 * little-endian case we can't just shift the interesting bits up.
+	 */
+#ifdef __ARMEB__
+	sub	r0, r0, r3, lsr #24
+#else
+	and	r3, r3, #255
+	/* No RSB instruction in Thumb2 */
+#ifdef __thumb2__
+	lsr	r0, r0, #24
+	sub	r0, r0, r3
+#else
+	rsb	r0, r3, r0, lsr #24
+#endif
+#endif
+	ldr	r4, [sp], #4
+	bx	lr
+
+.Lstrcmp_unaligned:
+	wp1 .req r0
+	wp2 .req r1
+	b1  .req r2
+	w1  .req r4
+	w2  .req r5
+	t1  .req ip
+	@ r3 is scratch
+
+	/* First of all, compare bytes until wp1(sp1) is word-aligned. */
+1:
+	tst	wp1, #3
+	beq	2f
+	ldrb	r2, [wp1], #1
+	ldrb	r3, [wp2], #1
+	cmp	r2, #1
+	it	cs
+	cmpcs	r2, r3
+	beq	1b
+	sub	r0, r2, r3
+	bx	lr
+
+2:
+	str	r5, [sp, #-4]!
+	str	r4, [sp, #-4]!
+	mov	b1, #1
+	orr	b1, b1, b1, lsl #8
+	orr	b1, b1, b1, lsl #16
+
+	and	t1, wp2, #3
+	bic	wp2, wp2, #3
+	ldr	w1, [wp1], #4
+	ldr	w2, [wp2], #4
+	cmp	t1, #2
+	beq	2f
+	bhi	3f
+
+	/* Critical inner Loop: Block with 3 bytes initial overlap */
+	.p2align	2
+1:
+	bic	t1, w1, #MSB
+	cmp	t1, w2, SHFT2LSB #8
+	sub	r3, w1, b1
+	bic	r3, r3, w1
+	bne	4f
+	ands	r3, r3, b1, lsl #7
+	it	eq
+	ldreq	w2, [wp2], #4
+	bne	5f
+	eor	t1, t1, w1
+	cmp	t1, w2, SHFT2MSB #24
+	bne	6f
+	ldr	w1, [wp1], #4
+	b	1b
+4:
+	SHFT2LSB	w2, w2, #8
+	b	8f
+
+5:
+#ifdef __ARMEB__
+	/* The syndrome value may contain false ones if the string ends
+	 * with the bytes 0x01 0x00
+	 */
+	tst	w1, #0xff000000
+	itt	ne
+	tstne	w1, #0x00ff0000
+	tstne	w1, #0x0000ff00
+	beq	7f
+#else
+	bics	r3, r3, #0xff000000
+	bne	7f
+#endif
+	ldrb	w2, [wp2]
+	SHFT2LSB	t1, w1, #24
+#ifdef __ARMEB__
+	lsl	w2, w2, #24
+#endif
+	b	8f
+
+6:
+	SHFT2LSB	t1, w1, #24
+	and	w2, w2, #LSB
+	b	8f
+
+	/* Critical inner Loop: Block with 2 bytes initial overlap */
+	.p2align	2
+2:
+	SHFT2MSB	t1, w1, #16
+	sub	r3, w1, b1
+	SHFT2LSB	t1, t1, #16
+	bic	r3, r3, w1
+	cmp	t1, w2, SHFT2LSB #16
+	bne	4f
+	ands	r3, r3, b1, lsl #7
+	it	eq
+	ldreq	w2, [wp2], #4
+	bne	5f
+	eor	t1, t1, w1
+	cmp	t1, w2, SHFT2MSB #16
+	bne	6f
+	ldr	w1, [wp1], #4
+	b	2b
+
+5:
+#ifdef __ARMEB__
+	/* The syndrome value may contain false ones if the string ends
+	 * with the bytes 0x01 0x00
+	 */
+	tst	w1, #0xff000000
+	it	ne
+	tstne	w1, #0x00ff0000
+	beq	7f
+#else
+	lsls	r3, r3, #16
+	bne	7f
+#endif
+	ldrh	w2, [wp2]
+	SHFT2LSB	t1, w1, #16
+#ifdef __ARMEB__
+	lsl	w2, w2, #16
+#endif
+	b	8f
+
+6:
+	SHFT2MSB	w2, w2, #16
+	SHFT2LSB	t1, w1, #16
+4:
+	SHFT2LSB	w2, w2, #16
+	b	8f
+
+	/* Critical inner Loop: Block with 1 byte initial overlap */
+	.p2align	2
+3:
+	and	t1, w1, #LSB
+	cmp	t1, w2, SHFT2LSB #24
+	sub	r3, w1, b1
+	bic	r3, r3, w1
+	bne	4f
+	ands	r3, r3, b1, lsl #7
+	it	eq
+	ldreq	w2, [wp2], #4
+	bne	5f
+	eor	t1, t1, w1
+	cmp	t1, w2, SHFT2MSB #8
+	bne	6f
+	ldr	w1, [wp1], #4
+	b	3b
+4:
+	SHFT2LSB	w2, w2, #24
+	b	8f
+5:
+	/* The syndrome value may contain false ones if the string ends
+	 * with the bytes 0x01 0x00
+	 */
+	tst	w1, #LSB
+	beq	7f
+	ldr	w2, [wp2], #4
+6:
+	SHFT2LSB	t1, w1, #8
+	bic	w2, w2, #MSB
+	b	8f
+7:
+	mov	r0, #0
+	ldr	r4, [sp], #4
+	ldr	r5, [sp], #4
+	bx	lr
+
+8:
+	and	r2, t1, #LSB
+	and	r0, w2, #LSB
+	cmp	r0, #1
+	it	cs
+	cmpcs	r0, r2
+	itt	eq
+	SHFT2LSBEQ	t1, t1, #8
+	SHFT2LSBEQ	w2, w2, #8
+	beq	8b
+	sub	r0, r2, r0
+	ldr	r4, [sp], #4
+	ldr	r5, [sp], #4
+	bx	lr
+END(strcmp)

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

@@ -1,5 +1,4 @@
 libc_bionic_src_files_arm += \
-    arch-arm/generic/bionic/memcmp.S \
     arch-arm/cortex-a15/bionic/memcpy.S \
     arch-arm/cortex-a15/bionic/memset.S \
     arch-arm/cortex-a15/bionic/stpcpy.S \
@@ -9,6 +8,4 @@ libc_bionic_src_files_arm += \
     arch-arm/cortex-a15/bionic/strcpy.S \
     arch-arm/cortex-a15/bionic/__strcpy_chk.S \
     arch-arm/cortex-a15/bionic/strlen.S \
-
-libc_openbsd_src_files_arm += \
-    upstream-openbsd/lib/libc/string/memmove.c \
+    bionic/memmove.c \

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

@@ -1,5 +1,4 @@
 libc_bionic_src_files_arm += \
-    arch-arm/generic/bionic/memcmp.S \
     arch-arm/cortex-a9/bionic/memcpy.S \
     arch-arm/cortex-a9/bionic/memset.S \
     arch-arm/cortex-a9/bionic/stpcpy.S \
@@ -9,6 +8,4 @@ libc_bionic_src_files_arm += \
     arch-arm/cortex-a9/bionic/strcpy.S \
     arch-arm/cortex-a9/bionic/__strcpy_chk.S \
     arch-arm/cortex-a9/bionic/strlen.S \
-
-libc_openbsd_src_files_arm += \
-    upstream-openbsd/lib/libc/string/memmove.c \
+    bionic/memmove.c \

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

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

libc/arch-arm/denver/denver.mk

@@ -1,5 +1,4 @@
 libc_bionic_src_files_arm += \
-    arch-arm/generic/bionic/memcmp.S \
     arch-arm/denver/bionic/memcpy.S \
     arch-arm/denver/bionic/memmove.S \
     arch-arm/denver/bionic/memset.S \

libc/arch-arm/generic/generic.mk

@@ -1,14 +1,11 @@
 libc_bionic_src_files_arm += \
-    arch-arm/generic/bionic/memcmp.S \
     arch-arm/generic/bionic/memcpy.S \
     arch-arm/generic/bionic/memset.S \
     arch-arm/generic/bionic/strcmp.S \
     arch-arm/generic/bionic/strcpy.S \
     arch-arm/generic/bionic/strlen.c \
+    bionic/memmove.c \
     bionic/__strcat_chk.cpp \
     bionic/__strcpy_chk.cpp \
-
-libc_openbsd_src_files_arm += \
-    upstream-openbsd/lib/libc/string/memmove.c \
     upstream-openbsd/lib/libc/string/stpcpy.c \
     upstream-openbsd/lib/libc/string/strcat.c \

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

@@ -38,7 +38,9 @@
 #ifndef _ARM32_ASM_H_
 #define _ARM32_ASM_H_
 
-#define __bionic_asm_align 0
+#ifndef _ALIGN_TEXT
+# define _ALIGN_TEXT .align 0
+#endif
 
 #undef __bionic_asm_custom_entry
 #undef __bionic_asm_custom_end
@@ -48,4 +50,10 @@
 #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

@@ -28,6 +28,14 @@
 #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.
@@ -45,4 +53,31 @@
 #  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/elf_machdep.h

@@ -102,8 +102,6 @@
 
 /* 112-127 are reserved for private experiments. */
 
-#define R_ARM_IRELATIVE   160
-
 #define R_ARM_RXPC25		249
 #define R_ARM_RSBREL32		250
 #define R_ARM_THM_RPC22		251

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

@@ -0,0 +1,79 @@
+/*	$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

@@ -0,0 +1,50 @@
+/*	$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

@@ -26,6 +26,10 @@
  * 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 !
  *
@@ -33,3 +37,46 @@
  * 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/krait.mk

@@ -1,5 +1,4 @@
 libc_bionic_src_files_arm += \
-    arch-arm/generic/bionic/memcmp.S \
     arch-arm/krait/bionic/memcpy.S \
     arch-arm/krait/bionic/memset.S \
     arch-arm/krait/bionic/strcmp.S \
@@ -12,6 +11,4 @@ libc_bionic_src_files_arm += \
     arch-arm/cortex-a15/bionic/strcat.S \
     arch-arm/cortex-a15/bionic/strcpy.S \
     arch-arm/cortex-a15/bionic/strlen.S \
-
-libc_openbsd_src_files_arm += \
-    upstream-openbsd/lib/libc/string/memmove.c \
+    bionic/memmove.c \

libc/arch-arm/syscalls/__rt_sigqueueinfo.S

@@ -1,14 +0,0 @@
-/* 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/_exit.S

@@ -13,4 +13,5 @@ ENTRY(_exit)
     b       __set_errno_internal
 END(_exit)
 
-ALIAS_SYMBOL(_Exit, _exit)
+    .globl _Exit
+    .equ _Exit, _exit

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/faccessat.S

@@ -2,7 +2,7 @@
 
 #include <private/bionic_asm.h>
 
-ENTRY(___faccessat)
+ENTRY(faccessat)
     mov     ip, r7
     ldr     r7, =__NR_faccessat
     swi     #0
@@ -11,5 +11,4 @@ ENTRY(___faccessat)
     bxls    lr
     neg     r0, r0
     b       __set_errno_internal
-END(___faccessat)
-.hidden ___faccessat
+END(faccessat)

libc/arch-arm/syscalls/fchmod.S

@@ -2,7 +2,7 @@
 
 #include <private/bionic_asm.h>
 
-ENTRY(___fchmod)
+ENTRY(fchmod)
     mov     ip, r7
     ldr     r7, =__NR_fchmod
     swi     #0
@@ -11,5 +11,4 @@ ENTRY(___fchmod)
     bxls    lr
     neg     r0, r0
     b       __set_errno_internal
-END(___fchmod)
-.hidden ___fchmod
+END(fchmod)

libc/arch-arm/syscalls/fchmodat.S

@@ -2,7 +2,7 @@
 
 #include <private/bionic_asm.h>
 
-ENTRY(___fchmodat)
+ENTRY(fchmodat)
     mov     ip, r7
     ldr     r7, =__NR_fchmodat
     swi     #0
@@ -11,5 +11,4 @@ ENTRY(___fchmodat)
     bxls    lr
     neg     r0, r0
     b       __set_errno_internal
-END(___fchmodat)
-.hidden ___fchmodat
+END(fchmodat)

libc/arch-arm/syscalls/fstat64.S

@@ -13,4 +13,5 @@ ENTRY(fstat64)
     b       __set_errno_internal
 END(fstat64)
 
-ALIAS_SYMBOL(fstat, fstat64)
+    .globl fstat
+    .equ fstat, fstat64

libc/arch-arm/syscalls/fstatat64.S

@@ -13,4 +13,5 @@ ENTRY(fstatat64)
     b       __set_errno_internal
 END(fstatat64)
 
-ALIAS_SYMBOL(fstatat, fstatat64)
+    .globl fstatat
+    .equ fstatat, fstatat64

libc/arch-arm/syscalls/sethostname.S

@@ -1,14 +0,0 @@
-/* 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

@@ -8,6 +8,7 @@ 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 += \
@@ -20,7 +21,6 @@ libc_freebsd_src_files_arm64 += \
     upstream-freebsd/lib/libc/string/wmemcmp.c \
 
 libc_openbsd_src_files_arm64 += \
-    upstream-openbsd/lib/libc/string/memrchr.c \
     upstream-openbsd/lib/libc/string/stpncpy.c \
     upstream-openbsd/lib/libc/string/strcat.c \
     upstream-openbsd/lib/libc/string/strlcat.c \
@@ -35,13 +35,13 @@ libc_openbsd_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/_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 \
 
-# Work around for http://b/20065774.
-libc_bionic_src_files_arm64 += arch-arm64/bionic/libgcc_compat.c
 
 libc_crt_target_cflags_arm64 := \
     -I$(LOCAL_PATH)/arch-arm64/include
@@ -61,6 +61,6 @@ ifeq ($(wildcard $(cpu_variant_mk)),)
 $(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_variant_mk)
+libc_common_additional_dependencies += $(cpu_variank_mk)
 
 cpu_variant_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)
-    # Push 'fn' and 'arg' onto the child stack.
-    stp     x5, x6, [x1, #-16]!
+    # Copy '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, #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
+    # 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]
     b       __start_thread
 END(__bionic_clone)
 .hidden __bionic_clone

libc/arch-arm64/bionic/_setjmp.S

@@ -0,0 +1,111 @@
+/*
+ * 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/libgcc_compat.c

@@ -1,15 +0,0 @@
-/* STOPSHIP: remove this once the flounder blobs have been rebuilt (http://b/20065774). */
-
-#if !defined(__clang__)
-
-extern void __clear_cache(char*, char*);
-extern char _Unwind_Backtrace;
-extern char _Unwind_GetIP;
-
-void* __bionic_libgcc_compat_symbols[] = {
-    &__clear_cache,
-    &_Unwind_Backtrace,
-    &_Unwind_GetIP,
-};
-
-#endif

libc/arch-arm64/bionic/setjmp.S

@@ -27,124 +27,97 @@
  */
 
 #include <private/bionic_asm.h>
+#include <machine/setjmp.h>
 
-// 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 + 2)
-#define _JB_D8_D9       (_JB_D10_D11 + 2)
+/*
+ * 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)
-  mov w1, #1
-  b sigsetjmp
+    /* 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
 END(setjmp)
 
-ENTRY(_setjmp)
-  mov w1, #0
-  b sigsetjmp
-END(_setjmp)
+.L_setjmp_magic:
+    .word   _JB_MAGIC__SETJMP
 
-// 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)]
+ENTRY(longjmp)
+    /* check magic */
+    ldr     w9, .L_setjmp_magic
+    ldr     w10, [x0, #(_JB_MAGIC * 4)]
+    cmp     w9, w10
+    b.ne    .L_fail
 
-  // Do we need to save the signal mask?
-  cbz w1, 1f
+    /* 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)]
 
-  // 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
+    /* 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)]
 
-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)]
+    /* 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
 
-  // 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)]
+    /* set return value */
+    cmp     w1, wzr
+    csinc   w0, w1, wzr, ne
+    ret
 
-  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_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_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).
-  tst x30, #3
-  b.ne longjmperror
-  mov x10, sp
-  tst x10, #15
-  b.ne longjmperror
-
-  // Set return value.
-  cmp w1, wzr
-  csinc w0, w1, wzr, ne
-  ret
-END(siglongjmp)
-
-ALIAS_SYMBOL(longjmp, siglongjmp)
-ALIAS_SYMBOL(_longjmp, 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)

libc/arch-arm64/bionic/sigsetjmp.S

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2014 The Android Open Source Project
+ * Copyright (C) 2013 The Android Open Source Project
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -26,21 +26,26 @@
  * SUCH DAMAGE.
  */
 
-#ifndef _MACHINE_TIMESPEC_H_
-#define _MACHINE_TIMESPEC_H_
-
-#include <sys/types.h>
+#include <private/bionic_asm.h>
+#include <machine/setjmp.h>
 
 /*
- * This file is used to include timespec definition without introducing the whole
- * <linux/time.h>, <sys/time.h> or <time.h>.
+ * int sigsetjmp(sigjmp_buf env, int savesigs);
+ * void siglongjmp(sigjmp_buf env, int val);
  */
-#ifndef _STRUCT_TIMESPEC
-#define _STRUCT_TIMESPEC
-struct timespec {
-  time_t tv_sec;
-  long tv_nsec;
-};
-#endif
 
-#endif /* _MACHINE_TIMESPEC_H_ */
+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/include/machine/asm.h

@@ -38,9 +38,17 @@
 #ifndef _AARCH64_ASM_H_
 #define _AARCH64_ASM_H_
 
-#define __bionic_asm_align 0
+#ifndef _ALIGN_TEXT
+# define _ALIGN_TEXT .align 0
+#endif
 
 #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/endian.h

@@ -0,0 +1,58 @@
+/*
+ * 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

@@ -0,0 +1,50 @@
+/*	$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

@@ -26,5 +26,48 @@
  * SUCH DAMAGE.
  */
 
-/* _JBLEN is the size of a jmp_buf in longs (64bit on AArch64) */
+/*
+ * 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/__rt_sigqueueinfo.S

@@ -1,15 +0,0 @@
-/* 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/_exit.S

@@ -13,4 +13,5 @@ ENTRY(_exit)
     ret
 END(_exit)
 
-ALIAS_SYMBOL(_Exit, _exit)
+    .globl _Exit
+    .equ _Exit, _exit

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
 
@@ -11,5 +11,4 @@ ENTRY(__clock_nanosleep)
     b.hi    __set_errno_internal
 
     ret
-END(__clock_nanosleep)
-.hidden __clock_nanosleep
+END(clock_nanosleep)

libc/arch-arm64/syscalls/faccessat.S

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

libc/arch-arm64/syscalls/fallocate.S

@@ -13,4 +13,5 @@ ENTRY(fallocate)
     ret
 END(fallocate)
 
-ALIAS_SYMBOL(fallocate64, fallocate)
+    .globl fallocate64
+    .equ fallocate64, fallocate

libc/arch-arm64/syscalls/fchmod.S

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

libc/arch-arm64/syscalls/fchmodat.S

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

libc/arch-arm64/syscalls/fstat64.S

@@ -13,4 +13,5 @@ ENTRY(fstat64)
     ret
 END(fstat64)
 
-ALIAS_SYMBOL(fstat, fstat64)
+    .globl fstat
+    .equ fstat, fstat64

libc/arch-arm64/syscalls/fstatat64.S

@@ -13,4 +13,5 @@ ENTRY(fstatat64)
     ret
 END(fstatat64)
 
-ALIAS_SYMBOL(fstatat, fstatat64)
+    .globl fstatat
+    .equ fstatat, fstatat64

libc/arch-arm64/syscalls/fstatfs64.S

@@ -2,7 +2,7 @@
 
 #include <private/bionic_asm.h>
 
-ENTRY(__fstatfs)
+ENTRY(fstatfs64)
     mov     x8, __NR_fstatfs
     svc     #0
 
@@ -11,5 +11,7 @@ ENTRY(__fstatfs)
     b.hi    __set_errno_internal
 
     ret
-END(__fstatfs)
-.hidden __fstatfs
+END(fstatfs64)
+
+    .globl fstatfs
+    .equ fstatfs, fstatfs64

libc/arch-arm64/syscalls/ftruncate.S

@@ -13,4 +13,5 @@ ENTRY(ftruncate)
     ret
 END(ftruncate)
 
-ALIAS_SYMBOL(ftruncate64, ftruncate)
+    .globl ftruncate64
+    .equ ftruncate64, ftruncate

libc/arch-arm64/syscalls/getrlimit.S

@@ -13,4 +13,5 @@ ENTRY(getrlimit)
     ret
 END(getrlimit)
 
-ALIAS_SYMBOL(getrlimit64, getrlimit)
+    .globl getrlimit64
+    .equ getrlimit64, getrlimit

libc/arch-arm64/syscalls/lseek.S

@@ -13,4 +13,5 @@ ENTRY(lseek)
     ret
 END(lseek)
 
-ALIAS_SYMBOL(lseek64, lseek)
+    .globl lseek64
+    .equ lseek64, lseek

libc/arch-arm64/syscalls/mmap.S

@@ -13,4 +13,5 @@ ENTRY(mmap)
     ret
 END(mmap)
 
-ALIAS_SYMBOL(mmap64, mmap)
+    .globl mmap64
+    .equ mmap64, mmap

libc/arch-arm64/syscalls/pread64.S

@@ -13,4 +13,5 @@ ENTRY(pread64)
     ret
 END(pread64)
 
-ALIAS_SYMBOL(pread, pread64)
+    .globl pread
+    .equ pread, pread64

libc/arch-arm64/syscalls/prlimit64.S

@@ -13,4 +13,5 @@ ENTRY(prlimit64)
     ret
 END(prlimit64)
 
-ALIAS_SYMBOL(prlimit, prlimit64)
+    .globl prlimit
+    .equ prlimit, prlimit64

libc/arch-arm64/syscalls/pwrite64.S

@@ -13,4 +13,5 @@ ENTRY(pwrite64)
     ret
 END(pwrite64)
 
-ALIAS_SYMBOL(pwrite, pwrite64)
+    .globl pwrite
+    .equ pwrite, pwrite64

libc/arch-arm64/syscalls/sendfile.S

@@ -13,4 +13,5 @@ ENTRY(sendfile)
     ret
 END(sendfile)
 
-ALIAS_SYMBOL(sendfile64, sendfile)
+    .globl sendfile64
+    .equ sendfile64, sendfile

libc/arch-arm64/syscalls/sethostname.S

@@ -1,14 +0,0 @@
-/* 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-arm64/syscalls/setrlimit.S

@@ -13,4 +13,5 @@ ENTRY(setrlimit)
     ret
 END(setrlimit)
 
-ALIAS_SYMBOL(setrlimit64, setrlimit)
+    .globl setrlimit64
+    .equ setrlimit64, setrlimit

libc/arch-arm64/syscalls/statfs64.S

@@ -2,7 +2,7 @@
 
 #include <private/bionic_asm.h>
 
-ENTRY(__statfs)
+ENTRY(statfs64)
     mov     x8, __NR_statfs
     svc     #0
 
@@ -11,5 +11,7 @@ ENTRY(__statfs)
     b.hi    __set_errno_internal
 
     ret
-END(__statfs)
-.hidden __statfs
+END(statfs64)
+
+    .globl statfs
+    .equ statfs, statfs64

libc/arch-arm64/syscalls/truncate.S

@@ -13,4 +13,5 @@ ENTRY(truncate)
     ret
 END(truncate)
 
-ALIAS_SYMBOL(truncate64, truncate)
+    .globl truncate64
+    .equ truncate64, truncate

libc/arch-common/bionic/crtbrand.S

@@ -1,39 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *  * Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *  * Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-	.section	.note.android.ident,"a",%note
-	.align	2
-	.type	abitag, %object
-abitag:
-	.long	2f-1f			/* int32_t namesz */
-	.long	3f-2f			/* int32_t descsz */
-	.long	1			/* int32_t type */
-1:	.ascii	"Android\0"		/* char name[] */
-2:	.long	PLATFORM_SDK_VERSION	/* int32_t android_api */
-3:
-	.size	abitag, .-abitag

libc/arch-mips/bionic/_setjmp.S

@@ -0,0 +1,150 @@
+/*	$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

@@ -0,0 +1,36 @@
+/*
+ * 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 "../../arch-common/bionic/atexit.h"
+#include "atexit.h"

libc/arch-mips/bionic/crtbegin_so.c

@@ -0,0 +1,38 @@
+/*
+ * 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

@@ -1,30 +1,5 @@
-/*
- * Copyright (C) 2014-2015 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.
- */
+/*      $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)
  *
@@ -53,122 +28,14 @@
  * 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/setjmp.h>
-
-/* jmpbuf is declared to users as an array of longs, which is only
- * 4-byte aligned in 32-bit builds.  The Mips jmpbuf begins with a
- * dynamically-sized 0- or 4-byte unused filler so that double-prec FP regs
- * are saved to 8-byte-aligned mem cells.
- * All the following jmpbuf offsets are from the rounded-DOWN base addr.
- */
-
-/* Fields of same size on all MIPS abis: */
-/*     	field:		byte offset:	size:						*/
-/*     	dynam filler	(0*4)		   0-4 bytes of rounddown filler, DON'T TOUCH!!
-						often overlays user storage!!		*/
-#define	SC_MAGIC_OFFSET	(1*4)		/* 4 bytes, identify jmpbuf, first actual field */
-#define	SC_FLAG_OFFSET	(2*4)		/* 4 bytes, savesigs flag */
-#define	SC_FPSR_OFFSET	(3*4)		/* 4 bytes, floating point control/status reg */
-/* following fields are 8-byte aligned */
-#define	SC_MASK_OFFSET	(4*4)		/* 16 bytes, mips32/mips64 version of sigset_t */
-#define	SC_SPARE_OFFSET	(8*4)		/* 8 bytes, reserved for future uses */
-
-/* Registers that are 4-byte on mips32 o32, and 8-byte on mips64 n64 abi */
-#define	SC_REGS_OFFSET	(10*4)		/* SC_REGS_BYTES */
-#define	SC_REGS_SAVED	12 /*regs*/	/* ra,s0-s8,gp,sp */
-#define	SC_REGS_BYTES   (SC_REGS_SAVED*REGSZ)
-#define	SC_REGS		SC_REGS_OFFSET
-
-/* Double 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_OFFSET (SC_REGS_OFFSET + SC_REGS_BYTES)  /* SC_FPREGS_BYTES */
-#define	SC_FPREGS_BYTES (SC_FPREGS_SAVED*REGSZ_FP)
-#define	SC_FPREGS	SC_FPREGS_OFFSET
-
-#define	SC_TOTAL_BYTES	(SC_FPREGS_OFFSET + SC_FPREGS_BYTES)
-#define	SC_TOTAL_LONGS	(SC_TOTAL_BYTES/REGSZ)
-
-#if SC_TOTAL_LONGS > _JBLEN
-#error _JBLEN is too small
-#endif
+#include <machine/regnum.h>
+#include <machine/signal.h>
 
 /*
- *
- *  GPOFF and FRAMESIZE must be the same for all setjmp/longjmp routines
+ * setjmp, longjmp implementation for libc. this code depends
+ * on the layout of the struct sigcontext in machine/signal.h.
  *
  */
 
@@ -178,179 +45,130 @@ A0OFF= FRAMESZ-3*REGSZ
 GPOFF= FRAMESZ-2*REGSZ
 RAOFF= FRAMESZ-1*REGSZ
 
-NON_LEAF(sigsetjmp, FRAMESZ, ra)
+NON_LEAF(setjmp, FRAMESZ, ra)
 	.mask	0x80000000, RAOFF
 	PTR_SUBU sp, FRAMESZ			# allocate stack frame
-	SETUP_GP64(GPOFF, sigsetjmp)
+	SETUP_GP64(GPOFF, setjmp)
 	SAVE_GP(GPOFF)
 	.set	reorder
-
-setjmp_common:
-#ifndef __LP64__
-	li	t0, ~7
-	and	a0, t0				# round jmpbuf addr DOWN to 8-byte boundary
-#endif
-	sw	a1, SC_FLAG_OFFSET(a0)		# save savesigs flag
-	beqz	a1, 1f				# do saving of signal mask?
-
-	REG_S	ra, RAOFF(sp)			# spill state
+	REG_S	ra, RAOFF(sp)			# save state
 	REG_S	a0, A0OFF(sp)
-	# call sigprocmask(int how ignored, sigset_t* null, sigset_t* SC_MASK(a0)):
-	LA	a2, SC_MASK_OFFSET(a0)		# gets current signal mask
-	li	a0, 0				# how; ignored when new mask is null
-	li	a1, 0				# null new mask
-	jal	sigprocmask			# get current signal mask
-	REG_L	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	ra, RAOFF(sp)
-1:
-	li	v0, 0xACEDBADE			# sigcontext magic number
-	sw	v0, SC_MAGIC_OFFSET(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)	# save gp
-	PTR_ADDU v0, sp, FRAMESZ
-	REG_S	v0, SC_REGS+11*REGSZ(a0)	# save orig sp
-
-	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)
+	REG_S	ra, SC_PC(a0)			# sc_pc = return address
+#if defined(__mips64)
+	dli	v0, 0xACEDBADE			# sigcontext magic number
 #else
-	# callee-saved fp regs on mips o32 ABI are
-	#   the even-numbered double 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)
+	li	v0, 0xACEDBADE			# sigcontext magic number
 #endif
-	sw	v0, SC_FPSR_OFFSET(a0)
+	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
+	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 */
 	move	v0, zero
 	RESTORE_GP64
 	PTR_ADDU sp, FRAMESZ
 	j	ra
-END(sigsetjmp)
 
-
-# Alternate entry points:
-
-NON_LEAF(setjmp, FRAMESZ, ra)
-	.mask	0x80000000, RAOFF
-	PTR_SUBU sp, FRAMESZ
-	SETUP_GP64(GPOFF, setjmp)		# can't share sigsetjmp's gp code
-	SAVE_GP(GPOFF)
-	.set	reorder
-
-	li	a1, 1				# save/restore signals state
-	b	setjmp_common			# tail call
+botch:
+	jal	longjmperror
+	jal	abort
+	RESTORE_GP64
+	PTR_ADDU sp, FRAMESZ
 END(setjmp)
 
 
-NON_LEAF(_setjmp, FRAMESZ, ra)
-	.mask	0x80000000, RAOFF
+LEAF(longjmp, FRAMESZ)
 	PTR_SUBU sp, FRAMESZ
-	SETUP_GP64(GPOFF, _setjmp)		# can't share sigsetjmp's gp code
+	SETUP_GP64(GPOFF, longjmp)
 	SAVE_GP(GPOFF)
 	.set	reorder
+	sw	a1, A1OFF(sp)
+	sw	a0, A0OFF(sp)
 
-	li	a1, 0				# don't save/restore signals
-	b	setjmp_common			# tail call
-END(_setjmp)
+	lw	a0, SC_MASK(a0)
+	jal	sigsetmask
 
+	lw	a0, A0OFF(sp)
+	lw	a1, A1OFF(sp)
 
-NON_LEAF(siglongjmp, FRAMESZ, ra)
-	.mask	0x80000000, RAOFF
-	PTR_SUBU sp, FRAMESZ
-	SETUP_GP64(GPOFF, siglongjmp)
-	SAVE_GP(GPOFF)
-	.set	reorder
+	.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)
 
-#ifndef __LP64__
-	li	t0, ~7
-	and	a0, t0				# round jmpbuf addr DOWN to 8-byte boundary
-#endif
-	lw	v0, SC_MAGIC_OFFSET(a0)
-	li	t0, 0xACEDBADE
-	bne	v0, t0, longjmp_botch		# jump if error
-
-	lw	t0, SC_FLAG_OFFSET(a0)		# get savesigs flag
-	beqz	t0, 1f				# restore signal mask?
-
-	REG_S	a1, A1OFF(sp)			# temp spill
-	REG_S	a0, A0OFF(sp)
-        # call sigprocmask(int how SIG_SETMASK, sigset_t* SC_MASK(a0), sigset_t* null):
-	LA	a1, SC_MASK_OFFSET(a0)		# signals being restored
-	li	a0, 3				# mips SIG_SETMASK
-	li	a2, 0				# null
-	jal	sigprocmask			# restore signal mask
-	REG_L	a0, A0OFF(sp)
-	REG_L	a1, A1OFF(sp)
-1:
-	# 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_OFFSET(a0)
-	ctc1	v0, $31			# restore old fr mode before fp values
-#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 double 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)
+#if !defined(SOFTFLOAT)
+	REG_L	v0, SC_FPREGS+((FSR-F0)*REGSZ)(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)
 #endif
+#endif /* !SOFTFLOAT */
 	bne	a1, zero, 1f
+	 nop
 	li	a1, 1			# never return 0!
 1:
-	move	v0, a1
-	j	ra			# return to setjmp call site
+	j	ra
+	 move	v0, a1
 
-longjmp_botch:
-	jal	longjmperror
-	jal	abort
-END(siglongjmp)
-
-ALIAS_SYMBOL(longjmp, siglongjmp)
-ALIAS_SYMBOL(_longjmp, siglongjmp)
+END(longjmp)

libc/arch-mips/bionic/sigsetjmp.S

@@ -1,8 +1,11 @@
-/*	$OpenBSD: daemon.c,v 1.7 2010/07/27 22:29:09 marco Exp $ */
+/* $OpenBSD: sigsetjmp.S,v 1.5 2005/08/07 16:40:15 espie Exp $ */
 /*-
- * Copyright (c) 1990, 1993
+ * 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:
@@ -28,37 +31,47 @@
  * SUCH DAMAGE.
  */
 
-#include <fcntl.h>
-#include <paths.h>
-#include <unistd.h>
-#include <stdlib.h>
+#include <private/bionic_asm.h>
+#include <machine/regnum.h>
+#include <machine/setjmp.h>
 
-int
-daemon(int nochdir, int noclose)
-{
-	int fd;
+/*
+ * trampolines for sigsetjmp and  siglongjmp save and restore mask.
+ *
+ */
+FRAMESZ= MKFSIZ(1,1)
+GPOFF= FRAMESZ-2*REGSZ
 
-	switch (fork()) {
-	case -1:
-		return (-1);
-	case 0:
-		break;
-	default:
-		_exit(0);
-	}
+LEAF(sigsetjmp, FRAMESZ)
+	PTR_SUBU sp, FRAMESZ
+	SETUP_GP64(GPOFF, sigsetjmp)
+	.set	reorder
+	REG_S	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
 
-	if (setsid() == -1)
-		return (-1);
+1:	LA	t9, setjmp
+	RESTORE_GP64
+	PTR_ADDU sp, FRAMESZ
+	jr t9
+END(sigsetjmp)
 
-	if (!nochdir)
-		(void)chdir("/");
-
-	if (!noclose && (fd = open(_PATH_DEVNULL, O_RDWR, 0)) != -1) {
-		(void)dup2(fd, STDIN_FILENO);
-		(void)dup2(fd, STDOUT_FILENO);
-		(void)dup2(fd, STDERR_FILENO);
-		if (fd > 2)
-			(void)close(fd);
-	}
-	return (0);
-}
+LEAF(siglongjmp, FRAMESZ)
+	PTR_SUBU sp, FRAMESZ
+	SETUP_GP64(GPOFF, siglongjmp)
+	.set	reorder
+	REG_L	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

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

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

@@ -121,7 +121,6 @@
 #define	DT_MIPS_GOTSYM		0x70000013	/* first dynamic sym in got */
 #define DT_MIPS_HIPAGENO	0x70000014
 #define	DT_MIPS_RLD_MAP		0x70000016	/* address of loader map */
-#define DT_MIPS_RLD_MAP2	0x70000035	/* offset of loader map, used for PIE */
 
 /*
  * ELF Flags

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

@@ -0,0 +1,70 @@
+/*	$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

@@ -0,0 +1,188 @@
+/*	$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

@@ -37,13 +37,6 @@
 #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 */