Merge "Correct way to specify additional dependencies"

Previous one was not covering all the targets

Bug: 17548097
Change-Id: I425e0f8d6e5a43feabd29dcb327049b82754d249

README.md

@@ -4,40 +4,52 @@ Working on bionic
 What are the big pieces of bionic?
 ----------------------------------
 
-libc/ --- libc.so, libc.a
-  The C library. Stuff like fopen(3) and kill(2).
-libm/ --- libm.so, libm.a
-  The math library. Traditionally Unix systems kept stuff like sin(3) and
-  cos(3) in a separate library to save space in the days before shared
-  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.
+#### libc/ --- libc.so, libc.a
 
-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).
+The C library. Stuff like `fopen(3)` and `kill(2)`.
 
-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.
+#### 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.
 
 
 What's in libc/?
 ----------------
 
+<pre>
 libc/
   arch-arm/
   arch-arm64/
@@ -121,6 +133,7 @@ libc/
   zoneinfo/
     # Android-format time zone data.
     # See 'Updating tzdata' later.
+</pre>
 
 
 Adding system calls
@@ -160,3 +173,74 @@ This is fully automated:
 
   1. Run update-tzdata.py.
 
+
+Running the tests
+-----------------
+
+The tests are all built from the tests/ directory.
+
+### Device tests
+
+    $ mma
+    $ adb sync
+    $ adb shell /data/nativetest/bionic-unit-tests/bionic-unit-tests32
+    $ adb shell \
+        /data/nativetest/bionic-unit-tests-static/bionic-unit-tests-static32
+    # Only for 64-bit targets
+    $ adb shell /data/nativetest/bionic-unit-tests/bionic-unit-tests64
+    $ adb shell \
+        /data/nativetest/bionic-unit-tests-static/bionic-unit-tests-static64
+
+### Host tests
+
+The host tests require that you have `lunch`ed either an x86 or x86_64 target.
+
+    $ mma
+    # 64-bit tests for 64-bit targets, 32-bit otherwise.
+    $ mm bionic-unit-tests-run-on-host
+    # Only exists for 64-bit targets.
+    $ mm bionic-unit-tests-run-on-host32
+
+### Against glibc
+
+As a way to check that our tests do in fact test the correct behavior (and not
+just the behavior we think is correct), it is possible to run the tests against
+the host's glibc.
+
+    $ mma
+    $ bionic-unit-tests-glibc32 # already in your path
+    $ bionic-unit-tests-glibc64
+
+
+Gathering test coverage
+-----------------------
+
+For either host or target coverage, you must first:
+
+ * `$ export NATIVE_COVERAGE=true`
+     * Note that the build system is ignorant to this flag being toggled, i.e. if
+       you change this flag, you will have to manually rebuild bionic.
+ * Set `bionic_coverage=true` in `libc/Android.mk` and `libm/Android.mk`.
+
+### Coverage from device tests
+
+    $ mma
+    $ adb sync
+    $ adb shell \
+        GCOV_PREFIX=/data/local/tmp/gcov \
+        GCOV_PREFIX_STRIP=`echo $ANDROID_BUILD_TOP | grep -o / | wc -l` \
+        /data/nativetest/bionic-unit-tests/bionic-unit-tests32
+    $ acov
+
+`acov` will pull all coverage information from the device, push it to the right
+directories, run `lcov`, and open the coverage report in your browser.
+
+### Coverage from host tests
+
+First, build and run the host tests as usual (see above).
+
+    $ croot
+    $ lcov -c -d $ANDROID_PRODUCT_OUT -o coverage.info
+    $ genhtml -o covreport coverage.info # or lcov --list coverage.info
+
+The coverage report is now available at `covreport/index.html`.

benchmarks/Android.mk

@@ -49,9 +49,8 @@ LOCAL_MODULE_STEM_64 := bionic-benchmarks64
 LOCAL_MULTILIB := both
 LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
 LOCAL_CFLAGS += $(benchmark_c_flags)
-LOCAL_C_INCLUDES += external/stlport/stlport bionic/ bionic/libstdc++/include
-LOCAL_SHARED_LIBRARIES += libstlport
 LOCAL_SRC_FILES := $(benchmark_src_files)
+LOCAL_CXX_STL := libc++
 include $(BUILD_EXECUTABLE)
 
 ifeq ($(HOST_OS)-$(HOST_ARCH),$(filter $(HOST_OS)-$(HOST_ARCH),linux-x86 linux-x86_64))

benchmarks/math_benchmark.cpp

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

benchmarks/pthread_benchmark.cpp

@@ -105,3 +105,35 @@ static void BM_pthread_mutex_lock_RECURSIVE(int iters) {
   StopBenchmarkTiming();
 }
 BENCHMARK(BM_pthread_mutex_lock_RECURSIVE);
+
+static void BM_pthread_rw_lock_read(int iters) {
+  StopBenchmarkTiming();
+  pthread_rwlock_t lock;
+  pthread_rwlock_init(&lock, NULL);
+  StartBenchmarkTiming();
+
+  for (int i = 0; i < iters; ++i) {
+    pthread_rwlock_rdlock(&lock);
+    pthread_rwlock_unlock(&lock);
+  }
+
+  StopBenchmarkTiming();
+  pthread_rwlock_destroy(&lock);
+}
+BENCHMARK(BM_pthread_rw_lock_read);
+
+static void BM_pthread_rw_lock_write(int iters) {
+  StopBenchmarkTiming();
+  pthread_rwlock_t lock;
+  pthread_rwlock_init(&lock, NULL);
+  StartBenchmarkTiming();
+
+  for (int i = 0; i < iters; ++i) {
+    pthread_rwlock_wrlock(&lock);
+    pthread_rwlock_unlock(&lock);
+  }
+
+  StopBenchmarkTiming();
+  pthread_rwlock_destroy(&lock);
+}
+BENCHMARK(BM_pthread_rw_lock_write);

libc/Android.mk

@@ -1,5 +1,7 @@
 LOCAL_PATH := $(call my-dir)
 
+bionic_coverage := false
+
 # Make everything depend on any changes to included makefiles.
 libc_common_additional_dependencies := $(LOCAL_PATH)/Android.mk
 
@@ -38,8 +40,6 @@ endif
 # =========================================================
 libc_common_src_files := \
     bionic/bindresvport.c \
-    bionic/daemon.c \
-    bionic/err.c \
     bionic/ether_aton.c \
     bionic/ether_ntoa.c \
     bionic/fts.c \
@@ -51,19 +51,16 @@ libc_common_src_files := \
     bionic/ioctl.c \
     bionic/isatty.c \
     bionic/memmem.c \
-    bionic/pathconf.c \
     bionic/pututline.c \
     bionic/sched_cpualloc.c \
     bionic/sched_cpucount.c \
-    bionic/semaphore.c \
     bionic/sigblock.c \
     bionic/siginterrupt.c \
     bionic/sigsetmask.c \
     bionic/system_properties_compat.c \
-    stdio/findfp.c \
-    stdio/fread.c \
     stdio/snprintf.c\
     stdio/sprintf.c \
+    stdio/stdio_ext.cpp \
 
 # Fortify implementations of libc functions.
 libc_common_src_files += \
@@ -92,6 +89,7 @@ libc_bionic_src_files := \
     bionic/access.cpp \
     bionic/assert.cpp \
     bionic/atof.cpp \
+    bionic/bionic_systrace.cpp \
     bionic/bionic_time_conversions.cpp \
     bionic/brk.cpp \
     bionic/c16rtomb.cpp \
@@ -100,6 +98,7 @@ libc_bionic_src_files := \
     bionic/chown.cpp \
     bionic/clearenv.cpp \
     bionic/clock.cpp \
+    bionic/clock_nanosleep.cpp \
     bionic/clone.cpp \
     bionic/__cmsg_nxthdr.cpp \
     bionic/connect.cpp \
@@ -123,6 +122,7 @@ libc_bionic_src_files := \
     bionic/getpgrp.cpp \
     bionic/getpid.cpp \
     bionic/gettid.cpp \
+    bionic/__gnu_basename.cpp \
     bionic/inotify_init.cpp \
     bionic/lchown.cpp \
     bionic/lfs64_support.cpp \
@@ -134,6 +134,7 @@ libc_bionic_src_files := \
     bionic/link.cpp \
     bionic/locale.cpp \
     bionic/lstat.cpp \
+    bionic/malloc_info.cpp \
     bionic/mbrtoc16.cpp \
     bionic/mbrtoc32.cpp \
     bionic/mbstate.cpp \
@@ -143,6 +144,7 @@ libc_bionic_src_files := \
     bionic/mntent.cpp \
     bionic/NetdClientDispatch.cpp \
     bionic/open.cpp \
+    bionic/pathconf.cpp \
     bionic/pause.cpp \
     bionic/pipe.cpp \
     bionic/poll.cpp \
@@ -182,6 +184,7 @@ libc_bionic_src_files := \
     bionic/scandir.cpp \
     bionic/sched_getaffinity.cpp \
     bionic/sched_getcpu.cpp \
+    bionic/semaphore.cpp \
     bionic/send.cpp \
     bionic/setegid.cpp \
     bionic/__set_errno.cpp \
@@ -240,9 +243,6 @@ libc_upstream_freebsd_src_files := \
     upstream-freebsd/lib/libc/gen/ldexp.c \
     upstream-freebsd/lib/libc/gen/sleep.c \
     upstream-freebsd/lib/libc/gen/usleep.c \
-    upstream-freebsd/lib/libc/stdio/fclose.c \
-    upstream-freebsd/lib/libc/stdio/flags.c \
-    upstream-freebsd/lib/libc/stdio/fopen.c \
     upstream-freebsd/lib/libc/stdlib/abs.c \
     upstream-freebsd/lib/libc/stdlib/getopt_long.c \
     upstream-freebsd/lib/libc/stdlib/imaxabs.c \
@@ -288,7 +288,6 @@ libc_upstream_netbsd_src_files := \
     upstream-netbsd/lib/libc/stdlib/div.c \
     upstream-netbsd/lib/libc/stdlib/drand48.c \
     upstream-netbsd/lib/libc/stdlib/erand48.c \
-    upstream-netbsd/lib/libc/stdlib/insque.c \
     upstream-netbsd/lib/libc/stdlib/jrand48.c \
     upstream-netbsd/lib/libc/stdlib/ldiv.c \
     upstream-netbsd/lib/libc/stdlib/lldiv.c \
@@ -297,14 +296,12 @@ libc_upstream_netbsd_src_files := \
     upstream-netbsd/lib/libc/stdlib/nrand48.c \
     upstream-netbsd/lib/libc/stdlib/_rand48.c \
     upstream-netbsd/lib/libc/stdlib/rand_r.c \
-    upstream-netbsd/lib/libc/stdlib/remque.c \
     upstream-netbsd/lib/libc/stdlib/seed48.c \
     upstream-netbsd/lib/libc/stdlib/srand48.c \
     upstream-netbsd/lib/libc/string/memccpy.c \
     upstream-netbsd/lib/libc/string/strcasestr.c \
     upstream-netbsd/lib/libc/string/strcoll.c \
     upstream-netbsd/lib/libc/string/strxfrm.c \
-    upstream-netbsd/lib/libc/unistd/killpg.c \
 
 libc_upstream_openbsd_gdtoa_src_files := \
     upstream-openbsd/android/gdtoa_support.cpp \
@@ -334,10 +331,14 @@ libc_upstream_openbsd_gdtoa_src_files_64 := \
     upstream-openbsd/lib/libc/gdtoa/strtorQ.c \
 
 libc_upstream_openbsd_src_files := \
+    upstream-openbsd/lib/libc/compat-43/killpg.c \
     upstream-openbsd/lib/libc/crypt/arc4random.c \
     upstream-openbsd/lib/libc/crypt/arc4random_uniform.c \
     upstream-openbsd/lib/libc/gen/alarm.c \
     upstream-openbsd/lib/libc/gen/ctype_.c \
+    upstream-openbsd/lib/libc/gen/daemon.c \
+    upstream-openbsd/lib/libc/gen/err.c \
+    upstream-openbsd/lib/libc/gen/errx.c \
     upstream-openbsd/lib/libc/gen/exec.c \
     upstream-openbsd/lib/libc/gen/fnmatch.c \
     upstream-openbsd/lib/libc/gen/ftok.c \
@@ -347,6 +348,12 @@ libc_upstream_openbsd_src_files := \
     upstream-openbsd/lib/libc/gen/time.c \
     upstream-openbsd/lib/libc/gen/tolower_.c \
     upstream-openbsd/lib/libc/gen/toupper_.c \
+    upstream-openbsd/lib/libc/gen/verr.c \
+    upstream-openbsd/lib/libc/gen/verrx.c \
+    upstream-openbsd/lib/libc/gen/vwarn.c \
+    upstream-openbsd/lib/libc/gen/vwarnx.c \
+    upstream-openbsd/lib/libc/gen/warn.c \
+    upstream-openbsd/lib/libc/gen/warnx.c \
     upstream-openbsd/lib/libc/locale/btowc.c \
     upstream-openbsd/lib/libc/locale/mbrlen.c \
     upstream-openbsd/lib/libc/locale/mbstowcs.c \
@@ -380,6 +387,7 @@ libc_upstream_openbsd_src_files := \
     upstream-openbsd/lib/libc/stdio/asprintf.c \
     upstream-openbsd/lib/libc/stdio/clrerr.c \
     upstream-openbsd/lib/libc/stdio/dprintf.c \
+    upstream-openbsd/lib/libc/stdio/fclose.c \
     upstream-openbsd/lib/libc/stdio/fdopen.c \
     upstream-openbsd/lib/libc/stdio/feof.c \
     upstream-openbsd/lib/libc/stdio/ferror.c \
@@ -391,12 +399,17 @@ libc_upstream_openbsd_src_files := \
     upstream-openbsd/lib/libc/stdio/fgetwc.c \
     upstream-openbsd/lib/libc/stdio/fgetws.c \
     upstream-openbsd/lib/libc/stdio/fileno.c \
+    upstream-openbsd/lib/libc/stdio/findfp.c \
+    upstream-openbsd/lib/libc/stdio/flags.c \
+    upstream-openbsd/lib/libc/stdio/fmemopen.c \
+    upstream-openbsd/lib/libc/stdio/fopen.c \
     upstream-openbsd/lib/libc/stdio/fprintf.c \
     upstream-openbsd/lib/libc/stdio/fpurge.c \
     upstream-openbsd/lib/libc/stdio/fputc.c \
     upstream-openbsd/lib/libc/stdio/fputs.c \
     upstream-openbsd/lib/libc/stdio/fputwc.c \
     upstream-openbsd/lib/libc/stdio/fputws.c \
+    upstream-openbsd/lib/libc/stdio/fread.c \
     upstream-openbsd/lib/libc/stdio/freopen.c \
     upstream-openbsd/lib/libc/stdio/fscanf.c \
     upstream-openbsd/lib/libc/stdio/fseek.c \
@@ -418,6 +431,8 @@ libc_upstream_openbsd_src_files := \
     upstream-openbsd/lib/libc/stdio/getwchar.c \
     upstream-openbsd/lib/libc/stdio/makebuf.c \
     upstream-openbsd/lib/libc/stdio/mktemp.c \
+    upstream-openbsd/lib/libc/stdio/open_memstream.c \
+    upstream-openbsd/lib/libc/stdio/open_wmemstream.c \
     upstream-openbsd/lib/libc/stdio/perror.c \
     upstream-openbsd/lib/libc/stdio/printf.c \
     upstream-openbsd/lib/libc/stdio/putc.c \
@@ -466,7 +481,9 @@ libc_upstream_openbsd_src_files := \
     upstream-openbsd/lib/libc/stdlib/atoll.c \
     upstream-openbsd/lib/libc/stdlib/exit.c \
     upstream-openbsd/lib/libc/stdlib/getenv.c \
+    upstream-openbsd/lib/libc/stdlib/insque.c \
     upstream-openbsd/lib/libc/stdlib/lsearch.c \
+    upstream-openbsd/lib/libc/stdlib/remque.c \
     upstream-openbsd/lib/libc/stdlib/setenv.c \
     upstream-openbsd/lib/libc/stdlib/strtoimax.c \
     upstream-openbsd/lib/libc/stdlib/strtol.c \
@@ -586,7 +603,9 @@ LOCAL_C_INCLUDES := $(libc_common_c_includes)
 LOCAL_MODULE := libc_stack_protector
 LOCAL_CLANG := $(use_clang)
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
+LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 $(eval $(call patch-up-arch-specific-flags,LOCAL_CFLAGS,libc_common_cflags))
 include $(BUILD_STATIC_LIBRARY)
@@ -624,7 +643,9 @@ LOCAL_C_INCLUDES := $(libc_common_c_includes) $(LOCAL_PATH)/tzcode/
 LOCAL_MODULE := libc_tzcode
 LOCAL_CLANG := $(use_clang)
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
+LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 $(eval $(call patch-up-arch-specific-flags,LOCAL_CFLAGS,libc_common_cflags))
 include $(BUILD_STATIC_LIBRARY)
@@ -642,7 +663,13 @@ LOCAL_SRC_FILES := \
     upstream-netbsd/lib/libc/isc/ev_timers.c \
     upstream-netbsd/lib/libc/resolv/mtctxres.c \
 
-LOCAL_CFLAGS := \
+# We use the OpenBSD res_random.
+LOCAL_CFLAGS += \
+    -Dres_randomid=__res_randomid
+LOCAL_SRC_FILES += \
+    upstream-openbsd/lib/libc/net/res_random.c \
+
+LOCAL_CFLAGS += \
     $(libc_common_cflags) \
     -DANDROID_CHANGES \
     -DINET6 \
@@ -660,7 +687,9 @@ LOCAL_C_INCLUDES := $(libc_common_c_includes)
 LOCAL_MODULE := libc_dns
 LOCAL_CLANG := $(use_clang)
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
+LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 $(eval $(call patch-up-arch-specific-flags,LOCAL_CFLAGS,libc_common_cflags))
 include $(BUILD_STATIC_LIBRARY)
@@ -689,7 +718,9 @@ LOCAL_C_INCLUDES := $(libc_common_c_includes)
 LOCAL_MODULE := libc_freebsd
 LOCAL_CLANG := $(use_clang)
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
+LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 $(eval $(call patch-up-arch-specific-flags,LOCAL_CFLAGS,libc_common_cflags))
 $(eval $(call patch-up-arch-specific-flags,LOCAL_SRC_FILES,libc_freebsd_src_files))
@@ -720,7 +751,9 @@ LOCAL_C_INCLUDES := $(libc_common_c_includes)
 LOCAL_MODULE := libc_netbsd
 LOCAL_CLANG := $(use_clang)
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
+LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 $(eval $(call patch-up-arch-specific-flags,LOCAL_CFLAGS,libc_common_cflags))
 $(eval $(call patch-up-arch-specific-flags,LOCAL_SRC_FILES,libc_netbsd_src_files))
@@ -746,7 +779,10 @@ endif
 
 LOCAL_CFLAGS := \
     $(libc_common_cflags) \
-    -Wno-sign-compare -Wno-uninitialized -Wno-unused-parameter \
+    -Wno-missing-field-initializers \
+    -Wno-sign-compare \
+    -Wno-uninitialized \
+    -Wno-unused-parameter \
     -I$(LOCAL_PATH)/private \
     -I$(LOCAL_PATH)/upstream-openbsd/android/include \
     -I$(LOCAL_PATH)/upstream-openbsd/lib/libc/include \
@@ -758,7 +794,9 @@ LOCAL_CPPFLAGS := $(libc_common_cppflags)
 LOCAL_C_INCLUDES := $(libc_common_c_includes)
 LOCAL_MODULE := libc_openbsd
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
+LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 $(eval $(call patch-up-arch-specific-flags,LOCAL_CFLAGS,libc_common_cflags))
 $(eval $(call patch-up-arch-specific-flags,LOCAL_SRC_FILES,libc_openbsd_src_files))
@@ -797,7 +835,9 @@ LOCAL_CPPFLAGS := $(libc_common_cppflags)
 LOCAL_C_INCLUDES := $(libc_common_c_includes)
 LOCAL_MODULE := libc_gdtoa
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
+LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 $(eval $(call patch-up-arch-specific-flags,LOCAL_CFLAGS,libc_common_cflags))
 include $(BUILD_STATIC_LIBRARY)
@@ -820,11 +860,13 @@ endif
 
 LOCAL_CONLYFLAGS := $(libc_common_conlyflags)
 LOCAL_CPPFLAGS := $(libc_common_cppflags)
-LOCAL_C_INCLUDES := $(libc_common_c_includes)
+LOCAL_C_INCLUDES := $(libc_common_c_includes) bionic/libstdc++/include
 LOCAL_MODULE := libc_bionic
 LOCAL_CLANG := $(use_clang)
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
+LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 $(eval $(call patch-up-arch-specific-flags,LOCAL_CFLAGS,libc_common_cflags))
 $(eval $(call patch-up-arch-specific-flags,LOCAL_SRC_FILES,libc_bionic_src_files))
@@ -843,12 +885,13 @@ LOCAL_CFLAGS := $(libc_common_cflags) \
 
 LOCAL_CONLYFLAGS := $(libc_common_conlyflags)
 LOCAL_CPPFLAGS := $(libc_common_cppflags)
-LOCAL_C_INCLUDES := $(libc_common_c_includes)
+LOCAL_C_INCLUDES := $(libc_common_c_includes) bionic/libstdc++/include
 LOCAL_MODULE := libc_cxa
-# GCC refuses to hide new/delete
-LOCAL_CLANG := true
+LOCAL_CLANG := true # GCC refuses to hide new/delete
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
+LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 include $(BUILD_STATIC_LIBRARY)
 
@@ -866,7 +909,9 @@ endif
 LOCAL_MODULE := libc_syscalls
 LOCAL_CLANG := $(use_clang)
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
+LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 include $(BUILD_STATIC_LIBRARY)
 
@@ -885,7 +930,9 @@ LOCAL_MODULE := libc_aeabi
 LOCAL_CLANG := $(use_clang)
 LOCAL_CFLAGS := $(libc_common_cflags) -fno-builtin
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
+LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 include $(BUILD_STATIC_LIBRARY)
 
@@ -922,10 +969,12 @@ ifneq ($(MALLOC_IMPL),dlmalloc)
 LOCAL_WHOLE_STATIC_LIBRARIES += libjemalloc
 endif
 
+LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
 
 # TODO: split out the asflags.
 LOCAL_ASFLAGS := $(LOCAL_CFLAGS)
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 $(eval $(call patch-up-arch-specific-flags,LOCAL_CFLAGS,libc_common_cflags))
 $(eval $(call patch-up-arch-specific-flags,LOCAL_SRC_FILES,libc_common_src_files))
@@ -961,7 +1010,9 @@ LOCAL_MODULE := libc_nomalloc
 LOCAL_CLANG := $(use_clang)
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
 LOCAL_WHOLE_STATIC_LIBRARIES := libc_common
+LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 $(eval $(call patch-up-arch-specific-flags,LOCAL_CFLAGS,libc_common_cflags))
 $(eval $(call patch-up-arch-specific-flags,LOCAL_SRC_FILES,libc_arch_static_src_files))
@@ -982,6 +1033,8 @@ LOCAL_CPPFLAGS := $(libc_common_cppflags)
 LOCAL_C_INCLUDES := $(libc_common_c_includes)
 LOCAL_MODULE := libc_malloc
 LOCAL_CLANG := $(use_clang)
+LOCAL_CXX_STL := none
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
 include $(BUILD_STATIC_LIBRARY)
 
@@ -1007,7 +1060,9 @@ LOCAL_MODULE := libc
 LOCAL_CLANG := $(use_clang)
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
 LOCAL_WHOLE_STATIC_LIBRARIES := libc_common
+LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 $(eval $(call patch-up-arch-specific-flags,LOCAL_CFLAGS,libc_common_cflags))
 $(eval $(call patch-up-arch-specific-flags,LOCAL_SRC_FILES,libc_arch_static_src_files))
@@ -1049,6 +1104,7 @@ LOCAL_STRIP_MODULE := keep_symbols
 
 LOCAL_SHARED_LIBRARIES := libdl
 LOCAL_WHOLE_STATIC_LIBRARIES := libc_common
+LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
 
 # We'd really like to do this for all architectures, but since this wasn't done
@@ -1068,6 +1124,7 @@ LOCAL_SRC_FILES_arm += \
     arch-common/bionic/crtbegin_so.c \
     arch-arm/bionic/atexit_legacy.c \
     arch-common/bionic/crtend_so.S
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 include $(BUILD_SHARED_LIBRARY)
 
@@ -1085,10 +1142,7 @@ ifneq ($(TARGET_BUILD_VARIANT),user)
 # ========================================================
 include $(CLEAR_VARS)
 
-LOCAL_CFLAGS := \
-    $(libc_common_cflags) \
-    -DMALLOC_LEAK_CHECK \
-
+LOCAL_CFLAGS := $(libc_common_cflags)
 LOCAL_CONLYFLAGS := $(libc_common_conlyflags)
 LOCAL_CPPFLAGS := $(libc_common_cppflags)
 
@@ -1108,14 +1162,16 @@ LOCAL_CLANG := $(use_clang)
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
 
 LOCAL_SHARED_LIBRARIES := libc libdl
+LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
 # Only need this for arm since libc++ uses its own unwind code that
 # doesn't mix with the other default unwind code.
-LOCAL_STATIC_LIBRARIES_arm := libc++
+LOCAL_STATIC_LIBRARIES_arm := libunwind_llvm
 LOCAL_ALLOW_UNDEFINED_SYMBOLS := true
 
 # Don't install on release build
 LOCAL_MODULE_TAGS := eng debug
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 $(eval $(call patch-up-arch-specific-flags,LOCAL_CFLAGS,libc_common_cflags))
 include $(BUILD_SHARED_LIBRARY)
@@ -1144,10 +1200,12 @@ LOCAL_CLANG := $(use_clang)
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
 
 LOCAL_SHARED_LIBRARIES := libc libdl
+LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
 
 # Don't install on release build
 LOCAL_MODULE_TAGS := eng debug
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 $(eval $(call patch-up-arch-specific-flags,LOCAL_CFLAGS,libc_common_cflags))
 include $(BUILD_SHARED_LIBRARY)
@@ -1164,26 +1222,30 @@ libstdcxx_common_src_files := \
     bionic/libc_logging.cpp \
 
 include $(CLEAR_VARS)
-LOCAL_C_INCLUDES := $(libc_common_c_includes)
+LOCAL_C_INCLUDES := $(libc_common_c_includes) bionic/libstdc++/include
 LOCAL_CFLAGS := $(libc_common_cflags)
 LOCAL_CPPFLAGS := $(libc_common_cppflags)
 LOCAL_SRC_FILES := $(libstdcxx_common_src_files)
 LOCAL_MODULE:= libstdc++
 LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
+LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES := libc
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 include $(BUILD_SHARED_LIBRARY)
 
 # ========================================================
 # libstdc++.a
 # ========================================================
 include $(CLEAR_VARS)
-LOCAL_C_INCLUDES := $(libc_common_c_includes)
+LOCAL_C_INCLUDES := $(libc_common_c_includes) bionic/libstdc++/include
 LOCAL_CFLAGS := $(libc_common_cflags)
 LOCAL_CPPFLAGS := $(libc_common_cppflags)
 LOCAL_SRC_FILES := $(libstdcxx_common_src_files)
 LOCAL_MODULE:= libstdc++
 LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
+LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES := libc
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 include $(BUILD_STATIC_LIBRARY)
 
 

libc/NOTICE

@@ -2510,35 +2510,6 @@ SUCH DAMAGE.
 
 -------------------------------------------------------------------
 
-Copyright (c) 1993
-     The Regents of the University of California.  All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-1. Redistributions of source code must retain the above copyright
-   notice, this list of conditions and the following disclaimer.
-2. Redistributions in binary form must reproduce the above copyright
-   notice, this list of conditions and the following disclaimer in the
-   documentation and/or other materials provided with the distribution.
-3. Neither the name of the University nor the names of its contributors
-   may be used to endorse or promote products derived from this software
-   without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
-FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGE.
-
--------------------------------------------------------------------
-
 Copyright (c) 1993
    The Regents of the University of California.  All rights reserved.
 
@@ -3131,38 +3102,6 @@ SUCH DAMAGE.
 
 -------------------------------------------------------------------
 
-Copyright (c) 1999 Kungliga Tekniska Högskolan
-(Royal Institute of Technology, Stockholm, Sweden).
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-
-1. Redistributions of source code must retain the above copyright
-   notice, this list of conditions and the following disclaimer.
-
-2. Redistributions in binary form must reproduce the above copyright
-   notice, this list of conditions and the following disclaimer in the
-   documentation and/or other materials provided with the distribution.
-
-3. Neither the name of KTH nor the names of its contributors may be
-   used to endorse or promote products derived from this software without
-   specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY KTH AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KTH OR ITS CONTRIBUTORS BE
-LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
-CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
-BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
-WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
-OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-
--------------------------------------------------------------------
-
 Copyright (c) 2000 Ben Harris.
 Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
 All rights reserved.
@@ -4422,6 +4361,39 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 -------------------------------------------------------------------
 
+Copyright (c) 2011 Martin Pieuchot <mpi@openbsd.org>
+
+Permission to use, copy, modify, and distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+-------------------------------------------------------------------
+
+Copyright (c) 2011 Martin Pieuchot <mpi@openbsd.org>
+Copyright (c) 2009 Ted Unangst
+
+Permission to use, copy, modify, and distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+-------------------------------------------------------------------
+
 Copyright (c) 2011 The Android Open Source Project
 Copyright (c) 2008 ARM Ltd
 All rights reserved.
@@ -4853,6 +4825,42 @@ SUCH DAMAGE.
 
 -------------------------------------------------------------------
 
+Copyright 1997 Niels Provos <provos@physnet.uni-hamburg.de>
+Copyright 2008 Damien Miller <djm@openbsd.org>
+All rights reserved.
+
+Theo de Raadt <deraadt@openbsd.org> came up with the idea of using
+such a mathematical system to generate more random (yet non-repeating)
+ids to solve the resolver/named problem.  But Niels designed the
+actual system based on the constraints.
+
+Later modified by Damien Miller to wrap the LCG output in a 15-bit
+permutation generator based on a Luby-Rackoff block cipher. This
+ensures the output is non-repeating and preserves the MSB twiddle
+trick, but makes it more resistant to LCG prediction.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+-------------------------------------------------------------------
+
 Copyright 2000 David E. O'Brien, John D. Polstra.
 All rights reserved.
 

libc/SYSCALLS.TXT

@@ -202,9 +202,9 @@ int     swapoff(const char*) all
 int           settimeofday(const struct timeval*, const struct timezone*)   all
 clock_t       times(struct tms*)       all
 int           nanosleep(const struct timespec*, struct timespec*)   all
-int           clock_settime(clockid_t clk_id, const struct timespec* tp)  all
-int           clock_getres(clockid_t clk_id, struct timespec* res)   all
-int           clock_nanosleep(clockid_t clock_id, int flags, const struct timespec* req, struct timespec* rem)  all
+int           clock_settime(clockid_t, const struct timespec*)  all
+int           clock_getres(clockid_t, struct timespec*)   all
+int           __clock_nanosleep:clock_nanosleep(clockid_t, int, const struct timespec*, struct timespec*)  all
 int           getitimer(int, const struct itimerval*)   all
 int           setitimer(int, const struct itimerval*, struct itimerval*)  all
 int           __timer_create:timer_create(clockid_t clockid, struct sigevent* evp, __kernel_timer_t* timerid)    all
@@ -321,7 +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,mips64
+int     _flush_cache:cacheflush(char* addr, const int nbytes, const int op) mips
 int     __set_tls:set_thread_area(void*) mips,mips64
 
 # x86-specific

libc/arch-arm/bionic/__aeabi.c

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

libc/arch-arm/bionic/_setjmp.S

@@ -107,7 +107,7 @@ ENTRY(_longjmp)
 
 	/* validation failed, die die die. */
 botch:
-	bl	PIC_SYM(longjmperror, PLT)
-	bl	PIC_SYM(abort, PLT)
+	bl	longjmperror
+	bl	abort
 	b	. - 8		/* Cannot get here */
 END(_longjmp)

libc/arch-arm/bionic/abort_arm.S

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

libc/arch-arm/bionic/setjmp.S

@@ -56,7 +56,7 @@ ENTRY(setjmp)
 	.cfi_rel_offset r14, 4
 	mov	r0, #0x00000000
 
-	bl	PIC_SYM(sigblock, PLT)
+	bl	sigblock
 	mov	r1, r0
 
 	ldmfd	sp!, {r0, r14}
@@ -108,7 +108,7 @@ ENTRY(longjmp)
 	.cfi_adjust_cfa_offset 4
 
 	mov	r0, r2
-	bl	PIC_SYM(sigsetmask, PLT)
+	bl	sigsetmask
 
 	add	sp, sp, #4	/* unalign the stack */
 	.cfi_adjust_cfa_offset -4
@@ -147,7 +147,7 @@ ENTRY(longjmp)
 
 	/* validation failed, die die die. */
 botch:
-	bl	PIC_SYM(longjmperror, PLT)
-	bl	PIC_SYM(abort, PLT)
+	bl	longjmperror
+	bl	abort
 	b	. - 8		/* Cannot get here */
 END(longjmp)

libc/arch-arm/bionic/sigsetjmp.S

@@ -33,8 +33,6 @@
  * SUCH DAMAGE.
  */
 
-#define _ALIGN_TEXT .align 0
-
 #include <private/bionic_asm.h>
 #include <machine/setjmp.h>
 
@@ -50,8 +48,8 @@
 
 ENTRY(sigsetjmp)
 	teq	r1, #0
-	beq	PIC_SYM(_setjmp, PLT)
-	b	PIC_SYM(setjmp, PLT)
+	beq	_setjmp
+	b	setjmp
 END(sigsetjmp)
 
 .L_setjmp_magic:
@@ -61,6 +59,6 @@ ENTRY(siglongjmp)
 	ldr	r2, .L_setjmp_magic
 	ldr	r3, [r0]
 	teq	r2, r3
-	beq	PIC_SYM(_longjmp, PLT)
-	b	PIC_SYM(longjmp, PLT)
+	beq	_longjmp
+	b	longjmp
 END(siglongjmp)

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

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

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

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

libc/arch-arm/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-arm64/bionic/_setjmp.S

@@ -105,7 +105,7 @@ ENTRY(_longjmp)
 
     /* validation failed, die die die */
 .L_fail:
-    bl      PIC_SYM(longjmperror, PLT)
-    bl      PIC_SYM(abort, PLT)
+    bl      longjmperror
+    bl      abort
     b        . - 8       /* Cannot get here */
 END(_longjmp)

libc/arch-arm64/bionic/setjmp.S

@@ -45,7 +45,7 @@ ENTRY(setjmp)
     stp     x0, x30, [sp, #-16]!
 
     mov     x0, xzr
-    bl      PIC_SYM(sigblock, PLT)
+    bl      sigblock
     mov     w1, w0
 
     ldp     x0, x30, [sp], #16
@@ -117,7 +117,7 @@ ENTRY(longjmp)
 
     /* validation failed, die die die */
 .L_fail:
-    bl      PIC_SYM(longjmperror, PLT)
-    bl      PIC_SYM(abort, PLT)
+    bl      longjmperror
+    bl      abort
     b       . - 8       /* Cannot get here */
 END(longjmp)

libc/arch-arm64/bionic/sigsetjmp.S

@@ -35,8 +35,8 @@
  */
 
 ENTRY(sigsetjmp)
-    cbz     w1, PIC_SYM(_setjmp, PLT)
-    b       PIC_SYM(setjmp, PLT)
+    cbz     w1, _setjmp
+    b       setjmp
 END(sigsetjmp)
 
 .L_setjmp_magic:
@@ -46,6 +46,6 @@ ENTRY(siglongjmp)
     ldr     w2, .L_setjmp_magic
     ldr     w3, [x0]
     cmp     w2, w3
-    b.eq    PIC_SYM(_longjmp, PLT)
-    b       PIC_SYM(longjmp, PLT)
+    b.eq    _longjmp
+    b       longjmp
 END(siglongjmp)

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

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

libc/arch-arm64/syscalls/__clock_nanosleep.S

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

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

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

libc/arch-mips/string/mips_strlen.c

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

libc/arch-mips/syscalls/__clock_nanosleep.S

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

libc/arch-mips64/bionic/syscall.S

@@ -52,7 +52,7 @@ LEAF(syscall,FRAMESZ)
 #else
 	move	a3, a4
 	move	a4, a5
-	REG_L	a5, FRAMESZ(sp)
+	move	a5, a6
 #endif
 	syscall
 	move	a0, v0

libc/arch-mips64/include/machine/asm.h

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

libc/arch-mips64/mips64.mk

@@ -49,7 +49,6 @@ libc_openbsd_src_files_mips64 += \
 libc_bionic_src_files_mips64 += \
     arch-mips64/bionic/__bionic_clone.S \
     arch-mips64/bionic/_exit_with_stack_teardown.S \
-    arch-mips64/bionic/__get_sp.S \
     arch-mips64/bionic/_setjmp.S \
     arch-mips64/bionic/setjmp.S \
     arch-mips64/bionic/sigsetjmp.S \

libc/arch-mips64/syscalls/__clock_nanosleep.S

@@ -2,7 +2,7 @@
 
 #include <private/bionic_asm.h>
 
-ENTRY(clock_nanosleep)
+ENTRY(__clock_nanosleep)
     .set push
     .set noreorder
     li v0, __NR_clock_nanosleep
@@ -22,4 +22,5 @@ ENTRY(clock_nanosleep)
     j t9
     move ra, t0
     .set pop
-END(clock_nanosleep)
+END(__clock_nanosleep)
+.hidden __clock_nanosleep

libc/arch-mips64/syscalls/_flush_cache.S

@@ -1,25 +0,0 @@
-/* Generated by gensyscalls.py. Do not edit. */
-
-#include <private/bionic_asm.h>
-
-ENTRY(_flush_cache)
-    .set push
-    .set noreorder
-    li v0, __NR_cacheflush
-    syscall
-    bnez a3, 1f
-    move a0, v0
-    j ra
-    nop
-1:
-    move t0, ra
-    bal     2f
-    nop
-2:
-    .cpsetup ra, t1, 2b
-    LA t9,__set_errno_internal
-    .cpreturn
-    j t9
-    move ra, t0
-    .set pop
-END(_flush_cache)

libc/arch-x86/atom/string/sse2-wcslen-atom.S

@@ -65,21 +65,21 @@ name:	\
 ENTRY (wcslen)
 	mov	STR(%esp), %edx
 #endif
-	cmp	$0, (%edx)
+	cmpl	$0, (%edx)
 	jz	L(exit_tail0)
-	cmp	$0, 4(%edx)
+	cmpl	$0, 4(%edx)
 	jz	L(exit_tail1)
-	cmp	$0, 8(%edx)
+	cmpl	$0, 8(%edx)
 	jz	L(exit_tail2)
-	cmp	$0, 12(%edx)
+	cmpl	$0, 12(%edx)
 	jz	L(exit_tail3)
-	cmp	$0, 16(%edx)
+	cmpl	$0, 16(%edx)
 	jz	L(exit_tail4)
-	cmp	$0, 20(%edx)
+	cmpl	$0, 20(%edx)
 	jz	L(exit_tail5)
-	cmp	$0, 24(%edx)
+	cmpl	$0, 24(%edx)
 	jz	L(exit_tail6)
-	cmp	$0, 28(%edx)
+	cmpl	$0, 28(%edx)
 	jz	L(exit_tail7)
 
 	pxor	%xmm0, %xmm0

libc/arch-x86/bionic/__restore.S

@@ -28,108 +28,10 @@
 
 #include <private/bionic_asm.h>
 
-// DWARF constants.
-#define DW_CFA_def_cfa_expression 0x0f
-#define DW_CFA_expression 0x10
-#define DW_EH_PE_pcrel 0x10
-#define DW_EH_PE_sdata4 0x0b
-#define DW_OP_breg4 0x74
-#define DW_OP_deref 0x06
-
-// Offsets into struct sigcontext.
-#define OFFSET_EDI 16
-#define OFFSET_ESI 20
-#define OFFSET_EBP 24
-#define OFFSET_ESP 28
-#define OFFSET_EBX 32
-#define OFFSET_EDX 36
-#define OFFSET_ECX 40
-#define OFFSET_EAX 44
-#define OFFSET_EIP 56
-
-// Non-standard DWARF constants for the x86 registers.
-#define DW_x86_REG_EAX 0
-#define DW_x86_REG_ECX 1
-#define DW_x86_REG_EDX 2
-#define DW_x86_REG_EBX 3
-#define DW_x86_REG_EBP 5
-#define DW_x86_REG_ESI 6
-#define DW_x86_REG_EDI 7
-#define DW_x86_REG_EIP 8
-
-#define cfi_signal_frame_start(f) \
-.section .eh_frame,"a",@progbits; \
-.L ## f ## _START_EH_FRAME: \
-  .long 2f - 1f; /* CIE length. */ \
-1:.long 0;       /* CIE ID. */ \
-  .byte 1;       /* Version. */ \
-  .string "zRS"; /* Augmentation string. */ \
-  .uleb128 1;    /* Code alignment factor. */ \
-  .sleb128 -4;   /* Data alignment factor. */ \
-  .uleb128 DW_x86_REG_EIP;    /* Return address register. */ \
-  .uleb128 1;    /* 1 byte of augmentation data. */ \
-  .byte (DW_EH_PE_pcrel|DW_EH_PE_sdata4); /* FDE encoding. */ \
-  .align 8; \
-2: \
-  .long .L ## f ## _END_FDE - .L ## f ## _START_FDE;   /* FDE length. */ \
-.L ## f ## _START_FDE: \
-  .long .L ## f ## _START_FDE - .L ## f ## _START_EH_FRAME; /* CIE location. */ \
-  .long (.L ## f ## _START - 1) - .;                   /* pcrel start address (see FDE encoding above). */ \
-  .long .L ## f ## _END - (.L ## f ## _START - 1);     /* Function this FDE applies to. */ \
-  .uleb128 0;                                          /* FDE augmentation length. */ \
-
-#define cfi_signal_frame_end(f) \
-.L ## f ## _END_FDE: \
-
-#define cfi_def_cfa(offset) \
-  .byte DW_CFA_def_cfa_expression; \
-  .uleb128 2f-1f; \
-1:.byte DW_OP_breg4; \
-  .sleb128 offset; \
-  .byte DW_OP_deref; \
-2: \
-
-#define cfi_offset(reg_number,offset) \
-  .byte DW_CFA_expression; \
-  .uleb128 reg_number; \
-  .uleb128 2f-1f; \
-1:.byte DW_OP_breg4; \
-  .sleb128 offset; \
-2: \
-
-ENTRY_PRIVATE(__restore)
-.L__restore_START:
+// This function must have exactly this instruction sequence for gdb and libunwind.
+// This function must have exactly this name for gdb.
+ENTRY(__restore)
   popl %eax
   movl $__NR_sigreturn, %eax
   int $0x80
-.L__restore_END:
 END(__restore)
-cfi_signal_frame_start(__restore)
-  cfi_def_cfa(OFFSET_ESP + 4)
-  cfi_offset(DW_x86_REG_EDI, OFFSET_EDI + 4)
-  cfi_offset(DW_x86_REG_ESI, OFFSET_ESI + 4)
-  cfi_offset(DW_x86_REG_EBP, OFFSET_EBP + 4)
-  cfi_offset(DW_x86_REG_EBX, OFFSET_EBX + 4)
-  cfi_offset(DW_x86_REG_EDX, OFFSET_EDX + 4)
-  cfi_offset(DW_x86_REG_ECX, OFFSET_ECX + 4)
-  cfi_offset(DW_x86_REG_EAX, OFFSET_EAX + 4)
-  cfi_offset(DW_x86_REG_EIP, OFFSET_EIP + 4)
-cfi_signal_frame_end(__restore)
-
-ENTRY_PRIVATE(__restore_rt)
-.L__restore_rt_START:
-  movl $__NR_rt_sigreturn, %eax
-  int $0x80
-.L__restore_rt_END:
-END(__restore_rt)
-cfi_signal_frame_start(__restore_rt)
-  cfi_def_cfa(OFFSET_ESP + 160)
-  cfi_offset(DW_x86_REG_EDI, OFFSET_EDI + 160)
-  cfi_offset(DW_x86_REG_ESI, OFFSET_ESI + 160)
-  cfi_offset(DW_x86_REG_EBP, OFFSET_EBP + 160)
-  cfi_offset(DW_x86_REG_EBX, OFFSET_EBX + 160)
-  cfi_offset(DW_x86_REG_EDX, OFFSET_EDX + 160)
-  cfi_offset(DW_x86_REG_ECX, OFFSET_ECX + 160)
-  cfi_offset(DW_x86_REG_EAX, OFFSET_EAX + 160)
-  cfi_offset(DW_x86_REG_EIP, OFFSET_EIP + 160)
-cfi_signal_frame_end(__restore_rt)

libc/arch-x86/bionic/__restore_rt.S

@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <private/bionic_asm.h>
+
+// This function must have exactly this instruction sequence for gdb and libunwind.
+// This function must have exactly this name for gdb.
+ENTRY(__restore_rt)
+  movl $__NR_rt_sigreturn, %eax
+  int $0x80
+END(__restore_rt)

libc/arch-x86/include/machine/asm.h

@@ -49,15 +49,6 @@
 #define PIC_GOT(x)	x@GOT(%ebx)
 #define PIC_GOTOFF(x)	x@GOTOFF(%ebx)
 
-/* let kernels and others override entrypoint alignment */
-#if !defined(_ALIGN_TEXT) && !defined(_KERNEL)
-# ifdef _STANDALONE
-#  define _ALIGN_TEXT .align 1
-# elif defined __ELF__
-#  define _ALIGN_TEXT .align 16
-# else
-#  define _ALIGN_TEXT .align 4
-# endif
-#endif
+#define __bionic_asm_align 16
 
 #endif /* !_I386_ASM_H_ */

libc/arch-x86/syscalls/__clock_nanosleep.S

@@ -2,7 +2,7 @@
 
 #include <private/bionic_asm.h>
 
-ENTRY(clock_nanosleep)
+ENTRY(__clock_nanosleep)
     pushl   %ebx
     .cfi_def_cfa_offset 8
     .cfi_rel_offset ebx, 0
@@ -33,4 +33,4 @@ ENTRY(clock_nanosleep)
     popl    %ecx
     popl    %ebx
     ret
-END(clock_nanosleep)
+END(__clock_nanosleep)

libc/arch-x86/x86.mk

@@ -39,6 +39,7 @@ libc_bionic_src_files_x86 += \
     arch-x86/bionic/__bionic_clone.S \
     arch-x86/bionic/_exit_with_stack_teardown.S \
     arch-x86/bionic/libgcc_compat.c \
+    arch-x86/bionic/__restore_rt.S \
     arch-x86/bionic/__restore.S \
     arch-x86/bionic/_setjmp.S \
     arch-x86/bionic/setjmp.S \

libc/arch-x86_64/bionic/__restore_rt.S

@@ -28,116 +28,9 @@
 
 #include <private/bionic_asm.h>
 
-// DWARF constants.
-#define DW_CFA_def_cfa_expression 0x0f
-#define DW_CFA_expression 0x10
-#define DW_EH_PE_pcrel 0x10
-#define DW_EH_PE_sdata4 0x0b
-#define DW_OP_breg4 0x74
-#define DW_OP_breg7 0x77
-#define DW_OP_deref 0x06
-
-// Offsets into struct ucontext_t of uc_mcontext.gregs[x].
-#define OFFSET_R8 40
-#define OFFSET_R9 48
-#define OFFSET_R10 56
-#define OFFSET_R11 64
-#define OFFSET_R12 72
-#define OFFSET_R13 80
-#define OFFSET_R14 88
-#define OFFSET_R15 96
-#define OFFSET_RDI 104
-#define OFFSET_RSI 112
-#define OFFSET_RBP 120
-#define OFFSET_RSP 160
-#define OFFSET_RBX 128
-#define OFFSET_RDX 136
-#define OFFSET_RAX 144
-#define OFFSET_RCX 152
-#define OFFSET_RIP 168
-
-// Non-standard DWARF constants for the x86-64 registers.
-#define DW_x86_64_RAX 0
-#define DW_x86_64_RDX 1
-#define DW_x86_64_RCX 2
-#define DW_x86_64_RBX 3
-#define DW_x86_64_RSI 4
-#define DW_x86_64_RDI 5
-#define DW_x86_64_RBP 6
-#define DW_x86_64_RSP 7
-#define DW_x86_64_R8 8
-#define DW_x86_64_R9 9
-#define DW_x86_64_R10 10
-#define DW_x86_64_R11 11
-#define DW_x86_64_R12 12
-#define DW_x86_64_R13 13
-#define DW_x86_64_R14 14
-#define DW_x86_64_R15 15
-#define DW_x86_64_RIP 16
-
-#define cfi_signal_frame_start(f) \
-.section .eh_frame,"a",@progbits; \
-.L ## f ## _START_EH_FRAME: \
-  .long 2f - 1f; /* CIE length. */ \
-1:.long 0;       /* CIE ID. */ \
-  .byte 1;       /* Version. */ \
-  .string "zRS"; /* Augmentation string. */ \
-  .uleb128 1;    /* Code alignment factor. */ \
-  .sleb128 -8;   /* Data alignment factor. */ \
-  .uleb128 DW_x86_64_RIP;   /* Return address register. */ \
-  .uleb128 1;    /* 1 byte of augmentation data. */ \
-  .byte (DW_EH_PE_pcrel | DW_EH_PE_sdata4); /* FDE encoding. */ \
-  .align 8; \
-2: \
-  .long .L ## f ## _END_FDE - .L ## f ## _START_FDE;   /* FDE length. */ \
-.L ## f ## _START_FDE: \
-  .long .L ## f ## _START_FDE - .L ## f ## _START_EH_FRAME; /* CIE location. */ \
-  .long (.L ## f ## _START - 1) - .;                   /* pcrel start address (see FDE encoding above). */ \
-  .long .L ## f ## _END - (.L ## f ## _START - 1);     /* Function this FDE applies to. */ \
-  .uleb128 0;                                          /* FDE augmentation length. */ \
-
-#define cfi_signal_frame_end(f) \
-.L ## f ## _END_FDE: \
-
-#define cfi_def_cfa(offset) \
-  .byte DW_CFA_def_cfa_expression; \
-  .uleb128 2f-1f; \
-1:.byte DW_OP_breg7; \
-  .sleb128 offset; \
-  .byte DW_OP_deref; \
-2: \
-
-#define cfi_offset(reg_number,offset) \
-  .byte DW_CFA_expression; \
-  .uleb128 reg_number; \
-  .uleb128 2f-1f; \
-1:.byte DW_OP_breg7; \
-  .sleb128 offset; \
-2: \
-
-ENTRY_PRIVATE(__restore_rt)
-.L__restore_rt_START:
+// This function must have exactly this instruction sequence for gdb and libunwind.
+// This function must have exactly this name for gdb.
+ENTRY(__restore_rt)
   mov $__NR_rt_sigreturn, %rax
   syscall
-.L__restore_rt_END:
 END(__restore_rt)
-cfi_signal_frame_start(__restore_rt)
-  cfi_def_cfa(OFFSET_RSP)
-  cfi_offset(DW_x86_64_R8, OFFSET_R8)
-  cfi_offset(DW_x86_64_R9, OFFSET_R9)
-  cfi_offset(DW_x86_64_R10, OFFSET_R10)
-  cfi_offset(DW_x86_64_R11, OFFSET_R11)
-  cfi_offset(DW_x86_64_R12, OFFSET_R12)
-  cfi_offset(DW_x86_64_R13, OFFSET_R13)
-  cfi_offset(DW_x86_64_R14, OFFSET_R14)
-  cfi_offset(DW_x86_64_R15, OFFSET_R15)
-  cfi_offset(DW_x86_64_RDI, OFFSET_RDI)
-  cfi_offset(DW_x86_64_RSI, OFFSET_RSI)
-  cfi_offset(DW_x86_64_RBP, OFFSET_RBP)
-  cfi_offset(DW_x86_64_RSP, OFFSET_RSP)
-  cfi_offset(DW_x86_64_RBX, OFFSET_RBX)
-  cfi_offset(DW_x86_64_RDX, OFFSET_RDX)
-  cfi_offset(DW_x86_64_RAX, OFFSET_RAX)
-  cfi_offset(DW_x86_64_RCX, OFFSET_RCX)
-  cfi_offset(DW_x86_64_RIP, OFFSET_RIP)
-cfi_signal_frame_end(__restore_rt)

libc/arch-x86_64/include/machine/asm.h

@@ -40,13 +40,6 @@
 #define PIC_PLT(x)	x@PLT
 #define PIC_GOT(x)	x@GOTPCREL(%rip)
 
-/* let kernels and others override entrypoint alignment */
-#ifndef _ALIGN_TEXT
-# ifdef _STANDALONE
-#  define _ALIGN_TEXT .align 4
-# else
-#  define _ALIGN_TEXT .align 16
-# endif
-#endif
+#define __bionic_asm_align 16
 
 #endif /* !_AMD64_ASM_H_ */

libc/arch-x86_64/syscalls/__clock_nanosleep.S

@@ -2,7 +2,7 @@
 
 #include <private/bionic_asm.h>
 
-ENTRY(clock_nanosleep)
+ENTRY(__clock_nanosleep)
     movq    %rcx, %r10
     movl    $__NR_clock_nanosleep, %eax
     syscall
@@ -13,4 +13,5 @@ ENTRY(clock_nanosleep)
     call    __set_errno_internal
 1:
     ret
-END(clock_nanosleep)
+END(__clock_nanosleep)
+.hidden __clock_nanosleep

libc/bionic/__gnu_basename.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2011 The Android Open Source Project
+ * Copyright (C) 2014 The Android Open Source Project
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -26,16 +26,10 @@
  * SUCH DAMAGE.
  */
 
-#ifndef _BIONIC_PTHREAD_H
-#define _BIONIC_PTHREAD_H
+#define _GNU_SOURCE 1
+#include <string.h>
 
-#include <sys/cdefs.h>
-
-__BEGIN_DECLS
-
-/* Internal, not an NDK API */
-extern pid_t __pthread_gettid(pthread_t thid);
-
-__END_DECLS
-
-#endif /* _BIONIC_PTHREAD_H */
+extern "C" const char* __gnu_basename(const char* path) {
+  const char* last_slash = strrchr(path, '/');
+  return (last_slash != NULL) ? last_slash + 1 : path;
+}

libc/bionic/bionic_systrace.cpp

@@ -0,0 +1,107 @@
+/*
+ * 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 <cutils/trace.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "private/bionic_systrace.h"
+#include "private/libc_logging.h"
+
+#define _REALLY_INCLUDE_SYS__SYSTEM_PROPERTIES_H_
+#include <sys/_system_properties.h>
+
+#define WRITE_OFFSET   32
+
+static const prop_info* g_pinfo = NULL;
+static uint32_t g_serial = -1;
+static uint64_t g_tags = 0;
+static int g_trace_marker_fd = -1;
+
+static bool should_trace() {
+  // If g_pinfo is null, this means that systrace hasn't been run and it's safe to
+  // assume that no trace writing will need to take place.  However, to avoid running
+  // this costly find check each time, we set it to a non-tracing value so that next
+  // time, it will just check the serial to see if the value has been changed.
+  // this function also deals with the bootup case, during which the call to property
+  // set will fail if the property server hasn't yet started.
+  if (g_pinfo == NULL) {
+    g_pinfo = __system_property_find("debug.atrace.tags.enableflags");
+    if (g_pinfo == NULL) {
+      __system_property_set("debug.atrace.tags.enableflags", "0");
+      g_pinfo = __system_property_find("debug.atrace.tags.enableflags");
+      if (g_pinfo == NULL) {
+        return false;
+      }
+    }
+  }
+
+  // Find out which tags have been enabled on the command line and set
+  // the value of tags accordingly.  If the value of the property changes,
+  // the serial will also change, so the costly system_property_read function
+  // can be avoided by calling the much cheaper system_property_serial
+  // first.  The values within pinfo may change, but its location is guaranteed
+  // not to move.
+  const uint32_t cur_serial = __system_property_serial(g_pinfo);
+  if (cur_serial != g_serial) {
+    g_serial = cur_serial;
+    char value[PROP_VALUE_MAX];
+    __system_property_read(g_pinfo, 0, value);
+    g_tags = strtoull(value, NULL, 0);
+  }
+
+  // Finally, verify that this tag value enables bionic tracing.
+  return ((g_tags & ATRACE_TAG_BIONIC) != 0);
+}
+
+ScopedTrace::ScopedTrace(const char* message) {
+  if (!should_trace()) {
+    return;
+  }
+
+  if (g_trace_marker_fd == -1) {
+    g_trace_marker_fd = open("/sys/kernel/debug/tracing/trace_marker", O_CLOEXEC | O_WRONLY);
+    if (g_trace_marker_fd == -1) {
+      __libc_fatal("Could not open kernel trace file: %s\n", strerror(errno));
+    }
+  }
+
+  // If bionic tracing has been enabled, then write the message to the
+  // kernel trace_marker.
+  int length = strlen(message);
+  char buf[length + WRITE_OFFSET];
+  size_t len = snprintf(buf, length + WRITE_OFFSET, "B|%d|%s", getpid(), message);
+  ssize_t wbytes = TEMP_FAILURE_RETRY(write(g_trace_marker_fd, buf, len));
+
+  // Error while writing
+  if (static_cast<size_t>(wbytes) != len) {
+    __libc_fatal("Could not write to kernel trace file: %s\n", strerror(errno));
+  }
+}
+
+ScopedTrace::~ScopedTrace() {
+  if (!should_trace()) {
+    return;
+  }
+
+  ssize_t wbytes = TEMP_FAILURE_RETRY(write(g_trace_marker_fd, "E", 1));
+
+  // Error while writing
+  if (static_cast<size_t>(wbytes) != 1) {
+    __libc_fatal("Could not write to kernel trace file: %s\n", strerror(errno));
+  }
+}

libc/bionic/bionic_time_conversions.cpp

@@ -28,6 +28,8 @@
 
 #include "private/bionic_time_conversions.h"
 
+#include "private/bionic_constants.h"
+
 bool timespec_from_timeval(timespec& ts, const timeval& tv) {
   // Whole seconds can just be copied.
   ts.tv_sec = tv.tv_sec;
@@ -49,3 +51,19 @@ void timeval_from_timespec(timeval& tv, const timespec& ts) {
   tv.tv_sec = ts.tv_sec;
   tv.tv_usec = ts.tv_nsec / 1000;
 }
+
+// Initializes 'ts' with the difference between 'abs_ts' and the current time
+// according to 'clock'. Returns false if abstime already expired, true otherwise.
+bool timespec_from_absolute_timespec(timespec& ts, const timespec& abs_ts, clockid_t clock) {
+  clock_gettime(clock, &ts);
+  ts.tv_sec = abs_ts.tv_sec - ts.tv_sec;
+  ts.tv_nsec = abs_ts.tv_nsec - ts.tv_nsec;
+  if (ts.tv_nsec < 0) {
+    ts.tv_sec--;
+    ts.tv_nsec += NS_PER_S;
+  }
+  if (ts.tv_nsec < 0 || ts.tv_sec < 0) {
+    return false;
+  }
+  return true;
+}

libc/bionic/clock.cpp

@@ -30,7 +30,7 @@
 #include <sys/sysconf.h>
 #include <sys/times.h>
 
-#define NS_PER_S 1000000000 // No "private/bionic_constants.h" in lmp-dev.
+#include "private/bionic_constants.h"
 
 // http://pubs.opengroup.org/onlinepubs/9699919799/functions/clock.html
 clock_t clock() {

libc/bionic/clock_nanosleep.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2008 The Android Open Source Project
+ * Copyright (C) 2014 The Android Open Source Project
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -25,40 +25,14 @@
  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  */
-#ifndef _PATHCONF_H_
-#define _PATHCONF_H_
 
-#include <sys/cdefs.h>
+#include <time.h>
 
-__BEGIN_DECLS
+#include "private/ErrnoRestorer.h"
 
-/* constants to be used for the 'name' paremeter of pathconf/fpathconf */
-
-#define  _PC_FILESIZEBITS       0x0000
-#define  _PC_LINK_MAX           0x0001
-#define  _PC_MAX_CANON          0x0002
-#define  _PC_MAX_INPUT          0x0003
-#define  _PC_NAME_MAX           0x0004
-#define  _PC_PATH_MAX           0x0005
-#define  _PC_PIPE_BUF           0x0006
-#define  _PC_2_SYMLINKS         0x0007
-#define  _PC_ALLOC_SIZE_MIN     0x0008
-#define  _PC_REC_INCR_XFER_SIZE 0x0009
-#define  _PC_REC_MAX_XFER_SIZE  0x000a
-#define  _PC_REC_MIN_XFER_SIZE  0x000b
-#define  _PC_REC_XFER_ALIGN     0x000c
-#define  _PC_SYMLINK_MAX        0x000d
-#define  _PC_CHOWN_RESTRICTED   0x000e
-#define  _PC_NO_TRUNC           0x000f
-#define  _PC_VDISABLE           0x0010
-#define  _PC_ASYNC_IO           0x0011
-#define  _PC_PRIO_IO            0x0012
-#define  _PC_SYNC_IO            0x0013
-
-extern long fpathconf(int fildes, int name);
-extern long pathconf(const char *path, int name);
-
-__END_DECLS
-
-#endif /* _PATHCONF_H_ */
+extern "C" int __clock_nanosleep(clockid_t, int, const timespec*, timespec*);
 
+int clock_nanosleep(clockid_t clock_id, int flags, const timespec* in, timespec* out) {
+  ErrnoRestorer errno_restorer;
+  return (__clock_nanosleep(clock_id, flags, in, out) == 0) ? 0 : errno;
+}

libc/bionic/clone.cpp

@@ -26,7 +26,7 @@
  * SUCH DAMAGE.
  */
 
-#define __GNU_SOURCE 1
+#define _GNU_SOURCE 1
 #include <sched.h>
 #include <stdlib.h>
 #include <stdarg.h>

libc/bionic/debug_mapinfo.cpp

@@ -71,7 +71,7 @@ __LIBC_HIDDEN__ mapinfo_t* mapinfo_create(pid_t pid) {
   struct mapinfo_t* milist = NULL;
   char data[1024]; // Used to read lines as well as to construct the filename.
   snprintf(data, sizeof(data), "/proc/%d/maps", pid);
-  FILE* fp = fopen(data, "r");
+  FILE* fp = fopen(data, "re");
   if (fp != NULL) {
     while (fgets(data, sizeof(data), fp) != NULL) {
       mapinfo_t* mi = parse_maps_line(data);

libc/bionic/dirent.cpp

@@ -78,7 +78,7 @@ DIR* fdopendir(int fd) {
 }
 
 DIR* opendir(const char* path) {
-  int fd = open(path, O_RDONLY | O_DIRECTORY);
+  int fd = open(path, O_CLOEXEC | O_DIRECTORY | O_RDONLY);
   return (fd != -1) ? __allocate_DIR(fd) : NULL;
 }
 

libc/bionic/dlmalloc.c

@@ -16,6 +16,7 @@
 
 #include "dlmalloc.h"
 
+#include "malloc.h"
 #include "private/bionic_prctl.h"
 #include "private/libc_logging.h"
 
@@ -54,3 +55,25 @@ static void* named_anonymous_mmap(size_t length) {
   prctl(PR_SET_VMA, PR_SET_VMA_ANON_NAME, map, length, "libc_malloc");
   return map;
 }
+
+// Since dlmalloc isn't the default, we'll leave this unimplemented for now. If
+// we decide we need it later, we can fill it in.
+size_t __mallinfo_narenas() {
+  return 0;
+}
+
+size_t __mallinfo_nbins() {
+  return 0;
+}
+
+struct mallinfo __mallinfo_arena_info(size_t aidx __unused) {
+  struct mallinfo mi;
+  memset(&mi, 0, sizeof(mi));
+  return mi;
+}
+
+struct mallinfo __mallinfo_bin_info(size_t aidx __unused, size_t bidx __unused) {
+  struct mallinfo mi;
+  memset(&mi, 0, sizeof(mi));
+  return mi;
+}

libc/bionic/flockfile.cpp

@@ -36,20 +36,12 @@
 // struct __sfileext (see fileext.h).
 
 void flockfile(FILE* fp) {
-  if (!__sdidinit) {
-    __sinit();
-  }
-
   if (fp != NULL) {
     pthread_mutex_lock(&_FLOCK(fp));
   }
 }
 
 int ftrylockfile(FILE* fp) {
-  if (!__sdidinit) {
-    __sinit();
-  }
-
   // The specification for ftrylockfile() says it returns 0 on success,
   // or non-zero on error. So return an errno code directly on error.
   if (fp == NULL) {
@@ -60,10 +52,6 @@ int ftrylockfile(FILE* fp) {
 }
 
 void funlockfile(FILE* fp) {
-  if (!__sdidinit) {
-    __sinit();
-  }
-
   if (fp != NULL) {
     pthread_mutex_unlock(&_FLOCK(fp));
   }

libc/bionic/hash.h

@@ -1,68 +0,0 @@
-/*
- * Copyright (c) 1999 Kungliga Tekniska H<>gskolan
- * (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
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
-
-/* $Heimdal: hash.h,v 1.1 1999/03/22 19:16:25 joda Exp $
-   $NetBSD: hash.h,v 1.1.1.3 2002/09/12 12:41:42 joda Exp $ */
-
-/* stuff in common between md4, md5, and sha1 */
-
-#ifndef __hash_h__
-#define __hash_h__
-
-#include <stdlib.h>
-#include <string.h>
-
-#ifndef min
-#define min(a,b) (((a)>(b))?(b):(a))
-#endif
-
-/* Vector Crays doesn't have a good 32-bit type, or more precisely,
-   int32_t as defined by <bind/bitypes.h> isn't 32 bits, and we don't
-   want to depend in being able to redefine this type.  To cope with
-   this we have to clamp the result in some places to [0,2^32); no
-   need to do this on other machines.  Did I say this was a mess?
-   */
-
-#ifdef _CRAY
-#define CRAYFIX(X) ((X) & 0xffffffff)
-#else
-#define CRAYFIX(X) (X)
-#endif
-
-static inline u_int32_t
-cshift (u_int32_t x, unsigned int n)
-{
-    x = CRAYFIX(x);
-    return CRAYFIX((x << n) | (x >> (32 - n)));
-}
-
-#endif /* __hash_h__ */

libc/bionic/lfs64_support.cpp

@@ -17,11 +17,20 @@
 #include <ftw.h>
 #include <stdlib.h>
 
-int mkstemp64(char* filename) {
-  // Delegation will work in this case because all the transitive dependencies
-  // are already 64-bit ready. In particular, we don't have non-O_LARGEFILE
-  // open (our open is actually open64) and stat and stat64 are the same.
-  return mkstemp(filename);
+// Delegation will work in these cases because all the transitive dependencies
+// are already 64-bit ready. In particular, we don't have non-O_LARGEFILE
+// open (our open is actually open64) and stat and stat64 are the same.
+int mkstemp64(char* path) {
+  return mkstemp(path);
+}
+int mkostemp64(char* path, int flags) {
+  return mkostemp(path, flags);
+}
+int mkstemps64(char* path, int suffix_length) {
+  return mkstemps(path, suffix_length);
+}
+int mkostemps64(char* path, int suffix_length, int flags) {
+  return mkostemps(path, suffix_length, flags);
 }
 
 typedef int (*ftw_fn)(const char*, const struct stat*, int);

libc/bionic/libc_init_common.cpp

@@ -49,7 +49,7 @@ extern "C" int __system_properties_init(void);
 extern "C" int __set_tls(void* ptr);
 extern "C" int __set_tid_address(int* tid_address);
 
-void __libc_init_vdso();
+__LIBC_HIDDEN__ void __libc_init_vdso();
 
 // Not public, but well-known in the BSDs.
 const char* __progname;

libc/bionic/libc_logging.cpp

@@ -75,10 +75,12 @@ struct BufferOutputStream {
       len = strlen(data);
     }
 
+    total += len;
+
     while (len > 0) {
       int avail = end_ - pos_;
       if (avail == 0) {
-        break;
+        return;
       }
       if (avail > len) {
         avail = len;
@@ -87,11 +89,10 @@ struct BufferOutputStream {
       pos_ += avail;
       pos_[0] = '\0';
       len -= avail;
-      total += avail;
     }
   }
 
-  int total;
+  size_t total;
 
  private:
   char* buffer_;
@@ -109,18 +110,19 @@ struct FdOutputStream {
       len = strlen(data);
     }
 
+    total += len;
+
     while (len > 0) {
       int rc = TEMP_FAILURE_RETRY(write(fd_, data, len));
       if (rc == -1) {
-        break;
+        return;
       }
       data += rc;
       len -= rc;
-      total += rc;
     }
   }
 
-  int total;
+  size_t total;
 
  private:
   int fd_;

libc/bionic/malloc_debug_common.cpp

@@ -29,14 +29,13 @@
 // Contains definition of structures, global variables, and implementation of
 // routines that are used by malloc leak detection code and other components in
 // the system. The trick is that some components expect these data and
-// routines to be defined / implemented in libc.so library, regardless
-// whether or not MALLOC_LEAK_CHECK macro is defined. To make things even
-// more tricky, malloc leak detection code, implemented in
-// libc_malloc_debug.so also requires access to these variables and routines
-// (to fill allocation entry hash table, for example). So, all relevant
-// variables and routines are defined / implemented here and exported
-// to all, leak detection code and other components via dynamic (libc.so),
-// or static (libc.a) linking.
+// routines to be defined / implemented in libc.so, regardless whether or not
+// malloc leak detection code is going to run. To make things even more tricky,
+// malloc leak detection code, implemented in libc_malloc_debug.so also
+// requires access to these variables and routines (to fill allocation entry
+// hash table, for example). So, all relevant variables and routines are
+// defined / implemented here and exported to all, leak detection code and
+// other components via dynamic (libc.so), or static (libc.a) linking.
 
 #include "malloc_debug_common.h"
 

libc/bionic/malloc_debug_leak.cpp

@@ -55,13 +55,6 @@
 #include "private/libc_logging.h"
 #include "private/ScopedPthreadMutexLocker.h"
 
-// This file should be included into the build only when
-// MALLOC_LEAK_CHECK, or MALLOC_QEMU_INSTRUMENT, or both
-// macros are defined.
-#ifndef MALLOC_LEAK_CHECK
-#error MALLOC_LEAK_CHECK is not defined.
-#endif  // !MALLOC_LEAK_CHECK
-
 extern int gMallocLeakZygoteChild;
 extern HashTable* g_hash_table;
 extern const MallocDebug* g_malloc_dispatch;

libc/bionic/malloc_debug_qemu.cpp

@@ -606,7 +606,7 @@ extern "C" bool malloc_debug_initialize(HashTable*, const MallocDebug* malloc_di
      * the memory mapped spaces into writes to an I/O port that emulator
      * "listens to" on the other end. Note that until we open and map that
      * device, logging to emulator's stdout will not be available. */
-    int fd = open("/dev/qemu_trace", O_RDWR);
+    int fd = open("/dev/qemu_trace", O_CLOEXEC | O_RDWR);
     if (fd < 0) {
         error_log("Unable to open /dev/qemu_trace");
         return false;

libc/bionic/malloc_info.cpp

@@ -0,0 +1,94 @@
+/*
+ * 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 "malloc_info.h"
+
+#include <errno.h>
+#include "private/bionic_macros.h"
+
+class __LIBC_HIDDEN__ Elem {
+public:
+  // name must be valid throughout lifetime of the object.
+  explicit Elem(FILE* fp, const char* name,
+                const char* attr_fmt = nullptr, ...) {
+    this->fp = fp;
+    this->name = name;
+
+    fprintf(fp, "<%s", name);
+    if (attr_fmt != nullptr) {
+      va_list args;
+      va_start(args, attr_fmt);
+      fputc(' ', fp);
+      vfprintf(fp, attr_fmt, args);
+      va_end(args);
+    }
+    fputc('>', fp);
+  }
+
+  ~Elem() noexcept {
+    fprintf(fp, "</%s>", name);
+  }
+
+  void contents(const char* fmt, ...) {
+      va_list args;
+      va_start(args, fmt);
+      vfprintf(fp, fmt, args);
+      va_end(args);
+  }
+
+private:
+  FILE* fp;
+  const char* name;
+
+  DISALLOW_COPY_AND_ASSIGN(Elem);
+};
+
+int malloc_info(int options, FILE* fp) {
+  if (options != 0) {
+    errno = EINVAL;
+    return -1;
+  }
+
+  Elem root(fp, "malloc", "version=\"jemalloc-1\"");
+
+  // Dump all of the large allocations in the arenas.
+  for (size_t i = 0; i < __mallinfo_narenas(); i++) {
+    struct mallinfo mi = __mallinfo_arena_info(i);
+    if (mi.hblkhd != 0) {
+      Elem arena_elem(fp, "heap", "nr=\"%d\"", i);
+      {
+        Elem(fp, "allocated-large").contents("%zu", mi.ordblks);
+        Elem(fp, "allocated-huge").contents("%zu", mi.uordblks);
+        Elem(fp, "allocated-bins").contents("%zu", mi.fsmblks);
+
+        size_t total = 0;
+        for (size_t j = 0; j < __mallinfo_nbins(); j++) {
+          struct mallinfo mi = __mallinfo_bin_info(i, j);
+          if (mi.ordblks != 0) {
+            Elem bin_elem(fp, "bin", "nr=\"%d\"", j);
+            Elem(fp, "allocated").contents("%zu", mi.ordblks);
+            Elem(fp, "nmalloc").contents("%zu", mi.uordblks);
+            Elem(fp, "ndalloc").contents("%zu", mi.fordblks);
+            total += mi.ordblks;
+          }
+        }
+        Elem(fp, "bins-total").contents("%zu", total);
+      }
+    }
+  }
+
+  return 0;
+}

libc/bionic/malloc_info.h

@@ -0,0 +1,32 @@
+/*
+ * 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.
+ */
+
+#ifndef LIBC_BIONIC_MALLOC_INFO_H_
+#define LIBC_BIONIC_MALLOC_INFO_H_
+
+#include <malloc.h>
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+
+__LIBC_HIDDEN__ size_t __mallinfo_narenas();
+__LIBC_HIDDEN__ size_t __mallinfo_nbins();
+__LIBC_HIDDEN__ struct mallinfo __mallinfo_arena_info(size_t);
+__LIBC_HIDDEN__ struct mallinfo __mallinfo_bin_info(size_t, size_t);
+
+__END_DECLS
+
+#endif // LIBC_BIONIC_MALLOC_INFO_H_

libc/bionic/ndk_cruft.cpp

@@ -320,6 +320,11 @@ extern "C" size_t dlmalloc_usable_size(void* ptr) {
   return malloc_usable_size(ptr);
 }
 
+// In L we added a public pthread_gettid_np, but some apps were using the private API.
+extern "C" pid_t __pthread_gettid(pthread_t t) {
+  return pthread_gettid_np(t);
+}
+
 // Older versions of appportable used dlmalloc directly instead of malloc,
 // so export this compatibility shim that simply calls malloc.
 extern "C" void* dlmalloc(size_t size) {

libc/bionic/new.cpp

@@ -38,11 +38,11 @@ void* operator new[](std::size_t size) {
     return p;
 }
 
-void  operator delete(void* ptr) {
+void  operator delete(void* ptr) throw() {
     free(ptr);
 }
 
-void  operator delete[](void* ptr) {
+void  operator delete[](void* ptr) throw() {
     free(ptr);
 }
 
@@ -54,10 +54,10 @@ void* operator new[](std::size_t size, const std::nothrow_t&) {
     return malloc(size);
 }
 
-void  operator delete(void* ptr, const std::nothrow_t&) {
+void  operator delete(void* ptr, const std::nothrow_t&) throw() {
     free(ptr);
 }
 
-void  operator delete[](void* ptr, const std::nothrow_t&) {
+void  operator delete[](void* ptr, const std::nothrow_t&) throw() {
     free(ptr);
 }

libc/bionic/pathconf.c

@@ -1,267 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *  * Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *  * Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <pathconf.h>
-#include <sys/vfs.h>
-#include <sys/limits.h>
-#include <errno.h>
-
-/* these may not be defined yet by our headers */
-#ifndef _POSIX_VDISABLE
-#define _POSIX_VDISABLE  -1
-#endif
-
-#ifndef _POSIX_SYNC_IO
-#define _POSIX_SYNC_IO  -1
-#endif
-
-#ifndef _POSIX_PRIO_IO
-#define _POSIX_PRIO_IO  -1
-#endif
-
-#ifndef _POSIX_ASYNC_IO
-#define _POSIX_ASYNC_IO  -1
-#endif
-
-
-static long
-__filesizebits( struct statfs*  s )
-{
-#define   EOL_MAGIC   0x0000U
-
-    /* list of known 64-bit aware filesystems */
-    static const uint32_t  known64[] = {
-        EXT2_SUPER_MAGIC,
-        UFS_MAGIC,
-        REISERFS_SUPER_MAGIC,
-        XFS_SUPER_MAGIC,
-        SMB_SUPER_MAGIC,
-        UDF_SUPER_MAGIC,
-        JFS_SUPER_MAGIC,
-        NTFS_SB_MAGIC,
-        VXFS_SUPER_MAGIC,
-        EOL_MAGIC
-    };
-    int  nn = 0;
-
-    for (; known64[nn] != EOL_MAGIC; ++nn) {
-        if (known64[nn] == s->f_type) {
-            return 64;
-        }
-    }
-    return 32;
-}
-
-
-static long
-__link_max( struct statfs*  s )
-{
-    // These constant values were taken from kernel headers.
-    // They're not available in uapi headers.
-    static const struct { uint32_t  type; int  max; }  knownMax[] =
-    {
-        { EXT2_SUPER_MAGIC, 32000 },
-        { EXT3_SUPER_MAGIC, 32000 },
-        { MINIX_SUPER_MAGIC, 250 },
-        { MINIX2_SUPER_MAGIC, 65530 },
-        { REISERFS_SUPER_MAGIC, 0xffff - 1000 },
-        { UFS_MAGIC, 32000 },
-        { EOL_MAGIC, 0 }
-    };
-    int   nn = 0;
-
-    for (; knownMax[nn].type != EOL_MAGIC; ++nn) {
-        if (knownMax[nn].type == s->f_type) {
-            return knownMax[nn].max;
-        }
-    }
-    return LINK_MAX;
-}
-
-static long
-__2_symlinks( struct statfs*  s )
-{
-    /* list of know filesystems that don't support symlinks */
-    static const uint32_t  knownNoSymlinks[] = {
-        ADFS_SUPER_MAGIC, BFS_MAGIC, CRAMFS_MAGIC,
-        EFS_SUPER_MAGIC, MSDOS_SUPER_MAGIC, NTFS_SB_MAGIC,
-        QNX4_SUPER_MAGIC,
-        EOL_MAGIC
-    };
-    int  nn = 0;
-
-    for (; knownNoSymlinks[nn] != EOL_MAGIC; ++nn) {
-        if (knownNoSymlinks[nn] == s->f_type) {
-            return 0;
-        }
-    }
-    return 1;
-}
-
-static long
-__name_max( struct statfs*  s )
-{
-    return s->f_namelen;
-}
-
-long
-pathconf(const char *path, int name)
-{
-    struct statfs  buf;
-    int            ret = statfs( path, &buf );
-
-    if (ret < 0)
-        return -1;
-
-    switch (name) {
-    case _PC_FILESIZEBITS:
-        return __filesizebits(&buf);
-
-    case _PC_LINK_MAX:
-        return __link_max(&buf);
-
-    case _PC_MAX_CANON:
-        return MAX_CANON;
-
-    case _PC_MAX_INPUT:
-        return MAX_INPUT;
-
-    case _PC_NAME_MAX:
-        return __name_max(&buf);
-
-    case _PC_PATH_MAX:
-        return PATH_MAX;
-
-    case _PC_PIPE_BUF:
-        return PIPE_BUF;
-
-    case _PC_2_SYMLINKS:
-        return __2_symlinks(&buf);
-
-#if 0  /* don't know what to do there, the specs are really weird */
-    case _PC_ALLOC_SIZE_MIN:
-    case _PC_REC_INCR_XFER_SIZE:
-    case _PC_REC_MAX_XFER_SIZE:
-    case _PC_REC_MIN_XFER_SIZE:
-    case _PC_REC_XFER_ALIGN:
-#endif
-
-    case _PC_SYMLINK_MAX:
-        return -1;  /* no limit */
-
-    case _PC_CHOWN_RESTRICTED:
-        return _POSIX_CHOWN_RESTRICTED;
-
-    case _PC_NO_TRUNC:
-        return _POSIX_NO_TRUNC;
-
-    case _PC_VDISABLE:
-        return _POSIX_VDISABLE;
-
-    case _PC_ASYNC_IO:
-        return _POSIX_ASYNC_IO;
-
-    case _PC_PRIO_IO:
-        return _POSIX_PRIO_IO;
-
-    case _PC_SYNC_IO:
-        return _POSIX_SYNC_IO;
-
-    default:
-        errno = EINVAL;
-        return -1;
-    }
-}
-
-long fpathconf(int fildes, int name)
-{
-    struct statfs  buf;
-    int            ret = fstatfs(fildes, &buf);
-
-    if (ret < 0)
-        return -1;
-
-    switch (name) {
-    case _PC_FILESIZEBITS:
-        return __filesizebits(&buf);
-
-    case _PC_LINK_MAX:
-        return __link_max(&buf);
-
-    case _PC_MAX_CANON:
-        return MAX_CANON;
-
-    case _PC_MAX_INPUT:
-        return MAX_INPUT;
-
-    case _PC_NAME_MAX:
-        return __name_max(&buf);
-
-    case _PC_PATH_MAX:
-        return PATH_MAX;
-
-    case _PC_PIPE_BUF:
-        return PIPE_BUF;
-
-    case _PC_2_SYMLINKS:
-        return __2_symlinks(&buf);
-
-#if 0  /* don't know what to do there, the specs are really weird */
-    case _PC_ALLOC_SIZE_MIN:
-    case _PC_REC_INCR_XFER_SIZE:
-    case _PC_REC_MAX_XFER_SIZE:
-    case _PC_REC_MIN_XFER_SIZE:
-    case _PC_REC_XFER_ALIGN:
-#endif
-
-    case _PC_SYMLINK_MAX:
-        return -1;  /* no limit */
-
-    case _PC_CHOWN_RESTRICTED:
-        return _POSIX_CHOWN_RESTRICTED;
-
-    case _PC_NO_TRUNC:
-        return _POSIX_NO_TRUNC;
-
-    case _PC_VDISABLE:
-        return _POSIX_VDISABLE;
-
-    case _PC_ASYNC_IO:
-        return _POSIX_ASYNC_IO;
-
-    case _PC_PRIO_IO:
-        return _POSIX_PRIO_IO;
-
-    case _PC_SYNC_IO:
-        return _POSIX_SYNC_IO;
-
-    default:
-        errno = EINVAL;
-        return -1;
-    }
-}

libc/bionic/pathconf.cpp

@@ -0,0 +1,152 @@
+/*
+ * 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 <unistd.h>
+
+#include <errno.h>
+#include <sys/limits.h>
+#include <sys/vfs.h>
+
+static long __filesizebits(const struct statfs& s) {
+  switch (s.f_type) {
+    case JFFS2_SUPER_MAGIC:
+    case MSDOS_SUPER_MAGIC:
+    case NCP_SUPER_MAGIC:
+      return 32;
+  }
+  // There won't be any new 32-bit file systems.
+  return 64;
+}
+
+static long __link_max(const struct statfs& s) {
+  // These constant values were taken from kernel headers.
+  // They're not available in uapi headers.
+  switch (s.f_type) {
+    case EXT2_SUPER_MAGIC:
+      return 32000;
+    case MINIX_SUPER_MAGIC:
+      return 250;
+    case MINIX2_SUPER_MAGIC:
+      return 65530;
+    case REISERFS_SUPER_MAGIC:
+      return 0xffff - 1000;
+    case UFS_MAGIC:
+      return 32000;
+  }
+  return LINK_MAX;
+}
+
+static long __2_symlinks(const struct statfs& s) {
+  switch (s.f_type) {
+    case ADFS_SUPER_MAGIC:
+    case BFS_MAGIC:
+    case CRAMFS_MAGIC:
+    case EFS_SUPER_MAGIC:
+    case MSDOS_SUPER_MAGIC:
+    case QNX4_SUPER_MAGIC:
+      return 0;
+  }
+  return 1;
+}
+
+static long __pathconf(const struct statfs& s, int name) {
+  switch (name) {
+    case _PC_FILESIZEBITS:
+      return __filesizebits(s);
+
+    case _PC_LINK_MAX:
+      return __link_max(s);
+
+    case _PC_MAX_CANON:
+      return MAX_CANON;
+
+    case _PC_MAX_INPUT:
+      return MAX_INPUT;
+
+    case _PC_NAME_MAX:
+      return s.f_namelen;
+
+    case _PC_PATH_MAX:
+      return PATH_MAX;
+
+    case _PC_PIPE_BUF:
+      return PIPE_BUF;
+
+    case _PC_2_SYMLINKS:
+      return __2_symlinks(s);
+
+#if 0
+    case _PC_ALLOC_SIZE_MIN:
+    case _PC_REC_INCR_XFER_SIZE:
+    case _PC_REC_MAX_XFER_SIZE:
+    case _PC_REC_MIN_XFER_SIZE:
+    case _PC_REC_XFER_ALIGN:
+#endif
+
+    case _PC_SYMLINK_MAX:
+      return -1; /* no limit */
+
+    case _PC_CHOWN_RESTRICTED:
+      return _POSIX_CHOWN_RESTRICTED;
+
+    case _PC_NO_TRUNC:
+      return _POSIX_NO_TRUNC;
+
+    case _PC_VDISABLE:
+      return _POSIX_VDISABLE;
+
+    case _PC_ASYNC_IO:
+      return -1;
+
+    case _PC_PRIO_IO:
+      return -1;
+
+    case _PC_SYNC_IO:
+      return -1;
+
+    default:
+      errno = EINVAL;
+      return -1;
+  }
+}
+
+long pathconf(const char* path, int name) {
+  struct statfs sb;
+  if (statfs(path, &sb) == -1) {
+    return -1;
+  }
+  return __pathconf(sb, name);
+}
+
+long fpathconf(int fd, int name) {
+  struct statfs sb;
+  if (fstatfs(fd, &sb) == -1) {
+    return -1;
+  }
+  return __pathconf(sb, name);
+}

libc/bionic/posix_timers.cpp

@@ -62,7 +62,6 @@ struct PosixTimer {
   pthread_t callback_thread;
   void (*callback)(sigval_t);
   sigval_t callback_argument;
-  volatile bool armed;
 };
 
 static __kernel_timer_t to_kernel_timer_id(timer_t timer) {
@@ -84,7 +83,7 @@ static void* __timer_thread_start(void* arg) {
       continue;
     }
 
-    if (si.si_code == SI_TIMER && timer->armed) {
+    if (si.si_code == SI_TIMER) {
       // This signal was sent because a timer fired, so call the callback.
       timer->callback(timer->callback_argument);
     } else if (si.si_code == SI_TKILL) {
@@ -96,9 +95,6 @@ static void* __timer_thread_start(void* arg) {
 }
 
 static void __timer_thread_stop(PosixTimer* timer) {
-  // Immediately mark the timer as disarmed so even if some events
-  // continue to happen, the callback won't be called.
-  timer->armed = false;
   pthread_kill(timer->callback_thread, TIMER_SIGNAL);
 }
 
@@ -125,7 +121,6 @@ int timer_create(clockid_t clock_id, sigevent* evp, timer_t* timer_id) {
   // Otherwise, this must be SIGEV_THREAD timer...
   timer->callback = evp->sigev_notify_function;
   timer->callback_argument = evp->sigev_value;
-  timer->armed = false;
 
   // Check arguments that the kernel doesn't care about but we do.
   if (timer->callback == NULL) {
@@ -205,18 +200,7 @@ int timer_gettime(timer_t id, itimerspec* ts) {
 
 // http://pubs.opengroup.org/onlinepubs/9699919799/functions/timer_getoverrun.html
 int timer_settime(timer_t id, int flags, const itimerspec* ts, itimerspec* ots) {
-  PosixTimer* timer= reinterpret_cast<PosixTimer*>(id);
-  int rc = __timer_settime(timer->kernel_timer_id, flags, ts, ots);
-  if (rc == 0) {
-    // Mark the timer as either being armed or disarmed. This avoids the
-    // callback being called after the disarm for SIGEV_THREAD timers only.
-    if (ts->it_value.tv_sec != 0 || ts->it_value.tv_nsec != 0) {
-      timer->armed = true;
-    } else {
-      timer->armed = false;
-    }
-  }
-  return rc;
+  return __timer_settime(to_kernel_timer_id(id), flags, ts, ots);
 }
 
 // http://pubs.opengroup.org/onlinepubs/9699919799/functions/timer_getoverrun.html

libc/bionic/pthread_cond.cpp

@@ -163,12 +163,12 @@ int __pthread_cond_timedwait_relative(pthread_cond_t* cond, pthread_mutex_t* mut
 }
 
 __LIBC_HIDDEN__
-int __pthread_cond_timedwait(pthread_cond_t* cond, pthread_mutex_t* mutex, const timespec* abstime, clockid_t clock) {
+int __pthread_cond_timedwait(pthread_cond_t* cond, pthread_mutex_t* mutex, const timespec* abs_ts, clockid_t clock) {
   timespec ts;
   timespec* tsp;
 
-  if (abstime != NULL) {
-    if (__timespec_from_absolute(&ts, abstime, clock) < 0) {
+  if (abs_ts != NULL) {
+    if (!timespec_from_absolute_timespec(ts, *abs_ts, clock)) {
       return ETIMEDOUT;
     }
     tsp = &ts;

libc/bionic/pthread_gettid_np.cpp

@@ -27,13 +27,7 @@
  */
 
 #include "pthread_internal.h"
-#include "private/bionic_pthread.h"
 
 pid_t pthread_gettid_np(pthread_t t) {
   return reinterpret_cast<pthread_internal_t*>(t)->tid;
 }
-
-// TODO: move callers over to pthread_gettid_np and remove this.
-pid_t __pthread_gettid(pthread_t t) {
-  return pthread_gettid_np(t);
-}

libc/bionic/pthread_internal.h

@@ -117,8 +117,6 @@ __LIBC_HIDDEN__ void _pthread_internal_remove_locked(pthread_internal_t* thread)
 __LIBC_HIDDEN__ extern pthread_internal_t* g_thread_list;
 __LIBC_HIDDEN__ extern pthread_mutex_t g_thread_list_lock;
 
-__LIBC_HIDDEN__ int __timespec_from_absolute(timespec*, const timespec*, clockid_t);
-
 /* Needed by fork. */
 __LIBC_HIDDEN__ extern void __bionic_atfork_run_prepare();
 __LIBC_HIDDEN__ extern void __bionic_atfork_run_child();

libc/bionic/pthread_internals.cpp

@@ -67,19 +67,3 @@ void _pthread_internal_add(pthread_internal_t* thread) {
 pthread_internal_t* __get_thread(void) {
   return reinterpret_cast<pthread_internal_t*>(__get_tls()[TLS_SLOT_THREAD_ID]);
 }
-
-// Initialize 'ts' with the difference between 'abstime' and the current time
-// according to 'clock'. Returns -1 if abstime already expired, or 0 otherwise.
-int __timespec_from_absolute(timespec* ts, const timespec* abstime, clockid_t clock) {
-  clock_gettime(clock, ts);
-  ts->tv_sec  = abstime->tv_sec - ts->tv_sec;
-  ts->tv_nsec = abstime->tv_nsec - ts->tv_nsec;
-  if (ts->tv_nsec < 0) {
-    ts->tv_sec--;
-    ts->tv_nsec += 1000000000;
-  }
-  if ((ts->tv_nsec < 0) || (ts->tv_sec < 0)) {
-    return -1;
-  }
-  return 0;
-}

libc/bionic/pthread_mutex.cpp

@@ -36,9 +36,13 @@
 #include "pthread_internal.h"
 
 #include "private/bionic_atomic_inline.h"
+#include "private/bionic_constants.h"
 #include "private/bionic_futex.h"
+#include "private/bionic_time_conversions.h"
 #include "private/bionic_tls.h"
 
+#include "private/bionic_systrace.h"
+
 extern void pthread_debug_mutex_lock_check(pthread_mutex_t *mutex);
 extern void pthread_debug_mutex_unlock_check(pthread_mutex_t *mutex);
 
@@ -333,6 +337,10 @@ static inline void _normal_lock(pthread_mutex_t* mutex, int shared) {
          * that the mutex is in state 2 when we go to sleep on it, which
          * guarantees a wake-up call.
          */
+
+         ScopedTrace trace("Contending for pthread mutex");
+
+
         while (__bionic_swap(locked_contended, &mutex->value) != unlocked) {
             __futex_wait_ex(&mutex->value, shared, locked_contended, NULL);
         }
@@ -440,12 +448,6 @@ static inline __always_inline int _recursive_increment(pthread_mutex_t* mutex, i
 }
 
 int pthread_mutex_lock(pthread_mutex_t* mutex) {
-#if !defined(__LP64__)
-    if (mutex == NULL) {
-        return EINVAL;
-    }
-#endif
-
     int mvalue, mtype, tid, shared;
 
     mvalue = mutex->value;
@@ -479,6 +481,8 @@ int pthread_mutex_lock(pthread_mutex_t* mutex) {
         mvalue = mutex->value;
     }
 
+    ScopedTrace trace("Contending for pthread mutex");
+
     for (;;) {
         int newval;
 
@@ -522,12 +526,6 @@ int pthread_mutex_lock(pthread_mutex_t* mutex) {
 }
 
 int pthread_mutex_unlock(pthread_mutex_t* mutex) {
-#if !defined(__LP64__)
-    if (mutex == NULL) {
-        return EINVAL;
-    }
-#endif
-
     int mvalue, mtype, tid, shared;
 
     mvalue = mutex->value;
@@ -619,7 +617,7 @@ int pthread_mutex_trylock(pthread_mutex_t* mutex) {
     return EBUSY;
 }
 
-static int __pthread_mutex_timedlock(pthread_mutex_t* mutex, const timespec* abs_timeout, clockid_t clock) {
+static int __pthread_mutex_timedlock(pthread_mutex_t* mutex, const timespec* abs_ts, clockid_t clock) {
   timespec ts;
 
   int mvalue = mutex->value;
@@ -638,9 +636,11 @@ static int __pthread_mutex_timedlock(pthread_mutex_t* mutex, const timespec* abs
       return 0;
     }
 
+    ScopedTrace trace("Contending for timed pthread mutex");
+
     // Loop while needed.
     while (__bionic_swap(locked_contended, &mutex->value) != unlocked) {
-      if (__timespec_from_absolute(&ts, abs_timeout, clock) < 0) {
+      if (!timespec_from_absolute_timespec(ts, *abs_ts, clock)) {
         return ETIMEDOUT;
       }
       __futex_wait_ex(&mutex->value, shared, locked_contended, &ts);
@@ -670,6 +670,8 @@ static int __pthread_mutex_timedlock(pthread_mutex_t* mutex, const timespec* abs
     mvalue = mutex->value;
   }
 
+  ScopedTrace trace("Contending for timed pthread mutex");
+
   while (true) {
     // If the value is 'unlocked', try to acquire it directly.
     // NOTE: put state to 2 since we know there is contention.
@@ -681,7 +683,7 @@ static int __pthread_mutex_timedlock(pthread_mutex_t* mutex, const timespec* abs
       }
       // The value changed before we could lock it. We need to check
       // the time to avoid livelocks, reload the value, then loop again.
-      if (__timespec_from_absolute(&ts, abs_timeout, clock) < 0) {
+      if (!timespec_from_absolute_timespec(ts, *abs_ts, clock)) {
         return ETIMEDOUT;
       }
 
@@ -703,7 +705,7 @@ static int __pthread_mutex_timedlock(pthread_mutex_t* mutex, const timespec* abs
     }
 
     // Check time and update 'ts'.
-    if (__timespec_from_absolute(&ts, abs_timeout, clock) < 0) {
+    if (timespec_from_absolute_timespec(ts, *abs_ts, clock)) {
       return ETIMEDOUT;
     }
 
@@ -726,9 +728,9 @@ extern "C" int pthread_mutex_lock_timeout_np(pthread_mutex_t* mutex, unsigned ms
   clock_gettime(CLOCK_MONOTONIC, &abs_timeout);
   abs_timeout.tv_sec  += ms / 1000;
   abs_timeout.tv_nsec += (ms % 1000) * 1000000;
-  if (abs_timeout.tv_nsec >= 1000000000) {
+  if (abs_timeout.tv_nsec >= NS_PER_S) {
     abs_timeout.tv_sec++;
-    abs_timeout.tv_nsec -= 1000000000;
+    abs_timeout.tv_nsec -= NS_PER_S;
   }
 
   int error = __pthread_mutex_timedlock(mutex, &abs_timeout, CLOCK_MONOTONIC);

libc/bionic/pthread_rwlock.cpp

@@ -30,6 +30,7 @@
 
 #include "pthread_internal.h"
 #include "private/bionic_futex.h"
+#include "private/bionic_time_conversions.h"
 
 /* Technical note:
  *
@@ -71,7 +72,7 @@ static inline bool rwlock_is_shared(const pthread_rwlock_t* rwlock) {
 
 static bool timespec_from_absolute(timespec* rel_timeout, const timespec* abs_timeout) {
   if (abs_timeout != NULL) {
-    if (__timespec_from_absolute(rel_timeout, abs_timeout, CLOCK_REALTIME) < 0) {
+    if (!timespec_from_absolute_timespec(*rel_timeout, *abs_timeout, CLOCK_REALTIME)) {
       return false;
     }
   }

libc/bionic/pthread_setname_np.cpp

@@ -67,7 +67,7 @@ int pthread_setname_np(pthread_t t, const char* thread_name) {
   }
   char comm_name[sizeof(TASK_COMM_FMT) + 8];
   snprintf(comm_name, sizeof(comm_name), TASK_COMM_FMT, tid);
-  int fd = open(comm_name, O_WRONLY);
+  int fd = open(comm_name, O_CLOEXEC | O_WRONLY);
   if (fd == -1) {
     return errno;
   }

libc/bionic/pututline.c

@@ -36,7 +36,7 @@ void pututline(struct utmp* utmp)
     struct utmp u;
     long i;
 
-    if (!(f = fopen(_PATH_UTMP, "w+")))
+    if (!(f = fopen(_PATH_UTMP, "w+e")))
         return;
 
     while (fread(&u, sizeof(struct utmp), 1, f) == 1)
@@ -55,7 +55,7 @@ void pututline(struct utmp* utmp)
 
     fclose(f);
 
-    if (!(f = fopen(_PATH_UTMP, "w+")))
+    if (!(f = fopen(_PATH_UTMP, "w+e")))
         return;
     fwrite(utmp, sizeof(struct utmp), 1, f);
 

libc/bionic/semaphore.c

@@ -1,398 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *  * Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *  * Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-#include <semaphore.h>
-#include <errno.h>
-#include <sys/time.h>
-#include <time.h>
-#include <limits.h>
-
-#include "private/bionic_atomic_inline.h"
-#include "private/bionic_futex.h"
-
-/* In this implementation, a semaphore contains a
- * 31-bit signed value and a 1-bit 'shared' flag
- * (for process-sharing purpose).
- *
- * We use the value -1 to indicate contention on the
- * semaphore, 0 or more to indicate uncontended state,
- * any value lower than -2 is invalid at runtime.
- *
- * State diagram:
- *
- * post(1)  ==> 2
- * post(0)  ==> 1
- * post(-1) ==> 1, then wake all waiters
- *
- * wait(2)  ==> 1
- * wait(1)  ==> 0
- * wait(0)  ==> -1 then wait for a wake up + loop
- * wait(-1) ==> -1 then wait for a wake up + loop
- *
- */
-
-/* Use the upper 31-bits for the counter, and the lower one
- * for the shared flag.
- */
-#define SEMCOUNT_SHARED_MASK      0x00000001
-#define SEMCOUNT_VALUE_MASK       0xfffffffe
-#define SEMCOUNT_VALUE_SHIFT      1
-
-/* Maximum unsigned value that can be stored in the semaphore.
- * One bit is used for the shared flag, another one for the
- * sign bit, leaving us with only 30 bits.
- */
-#define SEM_MAX_VALUE             0x3fffffff
-
-/* convert a value into the corresponding sem->count bit pattern */
-#define SEMCOUNT_FROM_VALUE(val)    (((val) << SEMCOUNT_VALUE_SHIFT) & SEMCOUNT_VALUE_MASK)
-
-/* convert a sem->count bit pattern into the corresponding signed value */
-#define SEMCOUNT_TO_VALUE(sval)  ((int)(sval) >> SEMCOUNT_VALUE_SHIFT)
-
-/* the value +1 as a sem->count bit-pattern. */
-#define SEMCOUNT_ONE              SEMCOUNT_FROM_VALUE(1)
-
-/* the value -1 as a sem->count bit-pattern. */
-#define SEMCOUNT_MINUS_ONE        SEMCOUNT_FROM_VALUE(-1)
-
-#define SEMCOUNT_DECREMENT(sval)    (((sval) - (1U << SEMCOUNT_VALUE_SHIFT)) & SEMCOUNT_VALUE_MASK)
-#define SEMCOUNT_INCREMENT(sval)    (((sval) + (1U << SEMCOUNT_VALUE_SHIFT)) & SEMCOUNT_VALUE_MASK)
-
-/* return the shared bitflag from a semaphore */
-#define SEM_GET_SHARED(sem)       ((sem)->count & SEMCOUNT_SHARED_MASK)
-
-
-int sem_init(sem_t *sem, int pshared, unsigned int value)
-{
-    if (sem == NULL) {
-        errno = EINVAL;
-        return -1;
-    }
-
-    /* ensure that 'value' can be stored in the semaphore */
-    if (value > SEM_MAX_VALUE) {
-        errno = EINVAL;
-        return -1;
-    }
-
-    sem->count = SEMCOUNT_FROM_VALUE(value);
-    if (pshared != 0)
-        sem->count |= SEMCOUNT_SHARED_MASK;
-
-    return 0;
-}
-
-
-int sem_destroy(sem_t *sem)
-{
-    int count;
-
-    if (sem == NULL) {
-        errno = EINVAL;
-        return -1;
-    }
-    count = SEMCOUNT_TO_VALUE(sem->count);
-    if (count < 0) {
-        errno = EBUSY;
-        return -1;
-    }
-    sem->count = 0;
-    return 0;
-}
-
-
-sem_t *sem_open(const char *name __unused, int oflag __unused, ...)
-{
-    errno = ENOSYS;
-    return SEM_FAILED;
-}
-
-
-int sem_close(sem_t *sem)
-{
-    if (sem == NULL) {
-        errno = EINVAL;
-        return -1;
-    }
-    errno = ENOSYS;
-    return -1;
-}
-
-
-int sem_unlink(const char* name __unused)
-{
-    errno = ENOSYS;
-    return -1;
-}
-
-
-/* Decrement a semaphore's value atomically,
- * and return the old one. As a special case,
- * this returns immediately if the value is
- * negative (i.e. -1)
- */
-static int
-__sem_dec(volatile unsigned int *pvalue)
-{
-    unsigned int shared = (*pvalue & SEMCOUNT_SHARED_MASK);
-    unsigned int old, new;
-    int          ret;
-
-    do {
-        old = (*pvalue & SEMCOUNT_VALUE_MASK);
-        ret = SEMCOUNT_TO_VALUE(old);
-        if (ret < 0)
-            break;
-
-        new = SEMCOUNT_DECREMENT(old);
-    }
-    while (__bionic_cmpxchg((int)(old|shared),
-                            (int)(new|shared),
-                            (volatile int *)pvalue) != 0);
-    return ret;
-}
-
-/* Same as __sem_dec, but will not touch anything if the
- * value is already negative *or* 0. Returns the old value.
- */
-static int
-__sem_trydec(volatile unsigned int *pvalue)
-{
-    unsigned int shared = (*pvalue & SEMCOUNT_SHARED_MASK);
-    unsigned int old, new;
-    int          ret;
-
-    do {
-        old = (*pvalue & SEMCOUNT_VALUE_MASK);
-        ret = SEMCOUNT_TO_VALUE(old);
-        if (ret <= 0)
-            break;
-
-        new = SEMCOUNT_DECREMENT(old);
-    }
-    while (__bionic_cmpxchg((int)(old|shared),
-                            (int)(new|shared),
-                            (volatile int *)pvalue) != 0);
-
-    return ret;
-}
-
-
-/* "Increment" the value of a semaphore atomically and
- * return its old value. Note that this implements
- * the special case of "incrementing" any negative
- * value to +1 directly.
- *
- * NOTE: The value will _not_ wrap above SEM_VALUE_MAX
- */
-static int
-__sem_inc(volatile unsigned int *pvalue)
-{
-    unsigned int  shared = (*pvalue & SEMCOUNT_SHARED_MASK);
-    unsigned int  old, new;
-    int           ret;
-
-    do {
-        old = (*pvalue & SEMCOUNT_VALUE_MASK);
-        ret = SEMCOUNT_TO_VALUE(old);
-
-        /* Can't go higher than SEM_MAX_VALUE */
-        if (ret == SEM_MAX_VALUE)
-            break;
-
-        /* If the counter is negative, go directly to +1,
-         * otherwise just increment */
-        if (ret < 0)
-            new = SEMCOUNT_ONE;
-        else
-            new = SEMCOUNT_INCREMENT(old);
-    }
-    while ( __bionic_cmpxchg((int)(old|shared),
-                             (int)(new|shared),
-                             (volatile int*)pvalue) != 0);
-
-    return ret;
-}
-
-/* lock a semaphore */
-int sem_wait(sem_t *sem)
-{
-    unsigned shared;
-
-    if (sem == NULL) {
-        errno = EINVAL;
-        return -1;
-    }
-
-    shared = SEM_GET_SHARED(sem);
-
-    for (;;) {
-        if (__sem_dec(&sem->count) > 0)
-            break;
-
-        __futex_wait_ex(&sem->count, shared, shared|SEMCOUNT_MINUS_ONE, NULL);
-    }
-    ANDROID_MEMBAR_FULL();
-    return 0;
-}
-
-int sem_timedwait(sem_t *sem, const struct timespec *abs_timeout)
-{
-    unsigned int shared;
-
-    if (sem == NULL) {
-        errno = EINVAL;
-        return -1;
-    }
-
-    /* POSIX says we need to try to decrement the semaphore
-     * before checking the timeout value. Note that if the
-     * value is currently 0, __sem_trydec() does nothing.
-     */
-    if (__sem_trydec(&sem->count) > 0) {
-        ANDROID_MEMBAR_FULL();
-        return 0;
-    }
-
-    /* Check it as per Posix */
-    if (abs_timeout == NULL    ||
-        abs_timeout->tv_sec < 0 ||
-        abs_timeout->tv_nsec < 0 ||
-        abs_timeout->tv_nsec >= 1000000000)
-    {
-        errno = EINVAL;
-        return -1;
-    }
-
-    shared = SEM_GET_SHARED(sem);
-
-    for (;;) {
-        struct timespec ts;
-        int             ret;
-
-        /* Posix mandates CLOCK_REALTIME here */
-        clock_gettime( CLOCK_REALTIME, &ts );
-        ts.tv_sec  = abs_timeout->tv_sec - ts.tv_sec;
-        ts.tv_nsec = abs_timeout->tv_nsec - ts.tv_nsec;
-        if (ts.tv_nsec < 0) {
-            ts.tv_nsec += 1000000000;
-            ts.tv_sec  -= 1;
-        }
-
-        if (ts.tv_sec < 0 || ts.tv_nsec < 0) {
-            errno = ETIMEDOUT;
-            return -1;
-        }
-
-        /* Try to grab the semaphore. If the value was 0, this
-         * will also change it to -1 */
-        if (__sem_dec(&sem->count) > 0) {
-            ANDROID_MEMBAR_FULL();
-            break;
-        }
-
-        /* Contention detected. wait for a wakeup event */
-        ret = __futex_wait_ex(&sem->count, shared, shared|SEMCOUNT_MINUS_ONE, &ts);
-
-        /* return in case of timeout or interrupt */
-        if (ret == -ETIMEDOUT || ret == -EINTR) {
-            errno = -ret;
-            return -1;
-        }
-    }
-    return 0;
-}
-
-/* Unlock a semaphore */
-int sem_post(sem_t *sem)
-{
-    unsigned int shared;
-    int          old;
-
-    if (sem == NULL)
-        return EINVAL;
-
-    shared = SEM_GET_SHARED(sem);
-
-    ANDROID_MEMBAR_FULL();
-    old = __sem_inc(&sem->count);
-    if (old < 0) {
-        /* contention on the semaphore, wake up all waiters */
-        __futex_wake_ex(&sem->count, shared, INT_MAX);
-    }
-    else if (old == SEM_MAX_VALUE) {
-        /* overflow detected */
-        errno = EOVERFLOW;
-        return -1;
-    }
-
-    return 0;
-}
-
-int  sem_trywait(sem_t *sem)
-{
-    if (sem == NULL) {
-        errno = EINVAL;
-        return -1;
-    }
-
-    if (__sem_trydec(&sem->count) > 0) {
-        ANDROID_MEMBAR_FULL();
-        return 0;
-    } else {
-        errno = EAGAIN;
-        return -1;
-    }
-}
-
-/* Note that Posix requires that sem_getvalue() returns, in
- * case of contention, the negative of the number of waiting
- * threads.
- *
- * However, code that depends on this negative value to be
- * meaningful is most probably racy. The GLibc sem_getvalue()
- * only returns the semaphore value, which is 0, in case of
- * contention, so we will mimick this behaviour here instead
- * for better compatibility.
- */
-int  sem_getvalue(sem_t *sem, int *sval)
-{
-    int  val;
-
-    if (sem == NULL || sval == NULL) {
-        errno = EINVAL;
-        return -1;
-    }
-
-    val = SEMCOUNT_TO_VALUE(sem->count);
-    if (val < 0)
-        val = 0;
-
-    *sval = val;
-    return 0;
-}

libc/bionic/semaphore.cpp

@@ -0,0 +1,289 @@
+/*
+ * 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 <semaphore.h>
+#include <errno.h>
+#include <limits.h>
+#include <sys/time.h>
+#include <time.h>
+
+#include "private/bionic_atomic_inline.h"
+#include "private/bionic_constants.h"
+#include "private/bionic_futex.h"
+#include "private/bionic_time_conversions.h"
+
+// In this implementation, a semaphore contains a
+// 31-bit signed value and a 1-bit 'shared' flag
+// (for process-sharing purpose).
+//
+// We use the value -1 to indicate contention on the
+// semaphore, 0 or more to indicate uncontended state,
+// any value lower than -2 is invalid at runtime.
+//
+// State diagram:
+//
+// post(1)  ==> 2
+// post(0)  ==> 1
+// post(-1) ==> 1, then wake all waiters
+//
+// wait(2)  ==> 1
+// wait(1)  ==> 0
+// wait(0)  ==> -1 then wait for a wake up + loop
+// wait(-1) ==> -1 then wait for a wake up + loop
+
+// Use the upper 31-bits for the counter, and the lower one
+// for the shared flag.
+#define SEMCOUNT_SHARED_MASK      0x00000001
+#define SEMCOUNT_VALUE_MASK       0xfffffffe
+#define SEMCOUNT_VALUE_SHIFT      1
+
+// Convert a value into the corresponding sem->count bit pattern.
+#define SEMCOUNT_FROM_VALUE(val)    (((val) << SEMCOUNT_VALUE_SHIFT) & SEMCOUNT_VALUE_MASK)
+
+// Convert a sem->count bit pattern into the corresponding signed value.
+static inline int SEMCOUNT_TO_VALUE(uint32_t sval) {
+  return (static_cast<int>(sval) >> SEMCOUNT_VALUE_SHIFT);
+}
+
+// The value +1 as a sem->count bit-pattern.
+#define SEMCOUNT_ONE              SEMCOUNT_FROM_VALUE(1)
+
+// The value -1 as a sem->count bit-pattern.
+#define SEMCOUNT_MINUS_ONE        SEMCOUNT_FROM_VALUE(-1)
+
+#define SEMCOUNT_DECREMENT(sval)    (((sval) - (1U << SEMCOUNT_VALUE_SHIFT)) & SEMCOUNT_VALUE_MASK)
+#define SEMCOUNT_INCREMENT(sval)    (((sval) + (1U << SEMCOUNT_VALUE_SHIFT)) & SEMCOUNT_VALUE_MASK)
+
+// Return the shared bitflag from a semaphore.
+static inline uint32_t SEM_GET_SHARED(sem_t* sem) {
+  return (sem->count & SEMCOUNT_SHARED_MASK);
+}
+
+
+int sem_init(sem_t* sem, int pshared, unsigned int value) {
+  // Ensure that 'value' can be stored in the semaphore.
+  if (value > SEM_VALUE_MAX) {
+    errno = EINVAL;
+    return -1;
+  }
+
+  sem->count = SEMCOUNT_FROM_VALUE(value);
+  if (pshared != 0) {
+    sem->count |= SEMCOUNT_SHARED_MASK;
+  }
+  return 0;
+}
+
+int sem_destroy(sem_t*) {
+  return 0;
+}
+
+sem_t* sem_open(const char*, int, ...) {
+  errno = ENOSYS;
+  return SEM_FAILED;
+}
+
+int sem_close(sem_t*) {
+  errno = ENOSYS;
+  return -1;
+}
+
+int sem_unlink(const char*) {
+  errno = ENOSYS;
+  return -1;
+}
+
+// Decrement a semaphore's value atomically,
+// and return the old one. As a special case,
+// this returns immediately if the value is
+// negative (i.e. -1)
+static int __sem_dec(volatile uint32_t* sem) {
+  volatile int32_t* ptr = reinterpret_cast<volatile int32_t*>(sem);
+  uint32_t shared = (*sem & SEMCOUNT_SHARED_MASK);
+  uint32_t old_value, new_value;
+  int ret;
+
+  do {
+    old_value = (*sem & SEMCOUNT_VALUE_MASK);
+    ret = SEMCOUNT_TO_VALUE(old_value);
+    if (ret < 0) {
+      break;
+    }
+
+    new_value = SEMCOUNT_DECREMENT(old_value);
+  } while (__bionic_cmpxchg((old_value|shared), (new_value|shared), ptr) != 0);
+
+  return ret;
+}
+
+// Same as __sem_dec, but will not touch anything if the
+// value is already negative *or* 0. Returns the old value.
+static int __sem_trydec(volatile uint32_t* sem) {
+  volatile int32_t* ptr = reinterpret_cast<volatile int32_t*>(sem);
+  uint32_t shared = (*sem & SEMCOUNT_SHARED_MASK);
+  uint32_t old_value, new_value;
+  int          ret;
+
+  do {
+    old_value = (*sem & SEMCOUNT_VALUE_MASK);
+    ret = SEMCOUNT_TO_VALUE(old_value);
+    if (ret <= 0) {
+      break;
+    }
+
+    new_value = SEMCOUNT_DECREMENT(old_value);
+  } while (__bionic_cmpxchg((old_value|shared), (new_value|shared), ptr) != 0);
+
+  return ret;
+}
+
+
+// "Increment" the value of a semaphore atomically and
+// return its old value. Note that this implements
+// the special case of "incrementing" any negative
+// value to +1 directly.
+//
+// NOTE: The value will _not_ wrap above SEM_VALUE_MAX
+static int __sem_inc(volatile uint32_t* sem) {
+  volatile int32_t* ptr = reinterpret_cast<volatile int32_t*>(sem);
+  uint32_t shared = (*sem & SEMCOUNT_SHARED_MASK);
+  uint32_t old_value, new_value;
+  int ret;
+
+  do {
+    old_value = (*sem & SEMCOUNT_VALUE_MASK);
+    ret = SEMCOUNT_TO_VALUE(old_value);
+
+    // Can't go higher than SEM_VALUE_MAX.
+    if (ret == SEM_VALUE_MAX) {
+      break;
+    }
+
+    // If the counter is negative, go directly to +1, otherwise just increment.
+    if (ret < 0) {
+        new_value = SEMCOUNT_ONE;
+    } else {
+      new_value = SEMCOUNT_INCREMENT(old_value);
+    }
+  } while (__bionic_cmpxchg((old_value|shared), (new_value|shared), ptr) != 0);
+
+  return ret;
+}
+
+int sem_wait(sem_t* sem) {
+  uint32_t shared = SEM_GET_SHARED(sem);
+
+  while (true) {
+    if (__sem_dec(&sem->count) > 0) {
+      ANDROID_MEMBAR_FULL();
+      return 0;
+    }
+
+    __futex_wait_ex(&sem->count, shared, shared|SEMCOUNT_MINUS_ONE, NULL);
+  }
+}
+
+int sem_timedwait(sem_t* sem, const timespec* abs_timeout) {
+  // POSIX says we need to try to decrement the semaphore
+  // before checking the timeout value. Note that if the
+  // value is currently 0, __sem_trydec() does nothing.
+  if (__sem_trydec(&sem->count) > 0) {
+    ANDROID_MEMBAR_FULL();
+    return 0;
+  }
+
+  // Check it as per POSIX.
+  if (abs_timeout == NULL || abs_timeout->tv_sec < 0 || abs_timeout->tv_nsec < 0 || abs_timeout->tv_nsec >= NS_PER_S) {
+    errno = EINVAL;
+    return -1;
+  }
+
+  uint32_t shared = SEM_GET_SHARED(sem);
+
+  while (true) {
+    // POSIX mandates CLOCK_REALTIME here.
+    timespec ts;
+    if (!timespec_from_absolute_timespec(ts, *abs_timeout, CLOCK_REALTIME)) {
+      errno = ETIMEDOUT;
+      return -1;
+    }
+
+    // Try to grab the semaphore. If the value was 0, this will also change it to -1.
+    if (__sem_dec(&sem->count) > 0) {
+      ANDROID_MEMBAR_FULL();
+      break;
+    }
+
+    // Contention detected. Wait for a wakeup event.
+    int ret = __futex_wait_ex(&sem->count, shared, shared|SEMCOUNT_MINUS_ONE, &ts);
+
+    // Return in case of timeout or interrupt.
+    if (ret == -ETIMEDOUT || ret == -EINTR) {
+      errno = -ret;
+      return -1;
+    }
+  }
+  return 0;
+}
+
+int sem_post(sem_t* sem) {
+  uint32_t shared = SEM_GET_SHARED(sem);
+
+  ANDROID_MEMBAR_FULL();
+  int old_value = __sem_inc(&sem->count);
+  if (old_value < 0) {
+    // Contention on the semaphore. Wake up all waiters.
+    __futex_wake_ex(&sem->count, shared, INT_MAX);
+  } else if (old_value == SEM_VALUE_MAX) {
+    // Overflow detected.
+    errno = EOVERFLOW;
+    return -1;
+  }
+
+  return 0;
+}
+
+int sem_trywait(sem_t* sem) {
+  if (__sem_trydec(&sem->count) > 0) {
+    ANDROID_MEMBAR_FULL();
+    return 0;
+  } else {
+    errno = EAGAIN;
+    return -1;
+  }
+}
+
+int sem_getvalue(sem_t* sem, int* sval) {
+  int val = SEMCOUNT_TO_VALUE(sem->count);
+  if (val < 0) {
+    val = 0;
+  }
+
+  *sval = val;
+  return 0;
+}

libc/bionic/strerror_r.cpp

@@ -1,11 +1,16 @@
 /* $OpenBSD: strerror_r.c,v 1.6 2005/08/08 08:05:37 espie Exp $ */
 /* Public Domain <marc@snafu.org> */
 
+// G++ automatically defines _GNU_SOURCE, which then means that <string.h>
+// gives us the GNU variant.
+#undef _GNU_SOURCE
+
+#include <string.h>
+
 #include <errno.h>
 #include <limits.h>
 #include <signal.h>
 #include <stdio.h>
-#include <string.h>
 
 #include "private/ErrnoRestorer.h"
 #include "private/libc_logging.h"
@@ -62,6 +67,12 @@ int strerror_r(int error_number, char* buf, size_t buf_len) {
   return 0;
 }
 
+extern "C" char* __gnu_strerror_r(int error_number, char* buf, size_t buf_len) {
+  ErrnoRestorer errno_restorer; // The glibc strerror_r doesn't set errno if it truncates...
+  strerror_r(error_number, buf, buf_len);
+  return buf; // ...and just returns whatever fit.
+}
+
 extern "C" __LIBC_HIDDEN__ const char* __strsignal(int signal_number, char* buf, size_t buf_len) {
   const char* signal_name = __strsignal_lookup(signal_number);
   if (signal_name != NULL) {

libc/bionic/sysconf.cpp

@@ -49,7 +49,6 @@
 #define  SYSTEM_MQ_OPEN_MAX     8
 #define  SYSTEM_MQ_PRIO_MAX     32768
 #define  SYSTEM_SEM_NSEMS_MAX   256
-#define  SYSTEM_SEM_VALUE_MAX   0x3fffffff  /* see bionic/semaphore.c */
 #define  SYSTEM_SIGQUEUE_MAX    32
 #define  SYSTEM_TIMER_MAX       32
 #define  SYSTEM_LOGIN_NAME_MAX  256
@@ -95,7 +94,7 @@ static int __sysconf_nprocessors_conf() {
 }
 
 static int __sysconf_nprocessors_onln() {
-  FILE* fp = fopen("/proc/stat", "r");
+  FILE* fp = fopen("/proc/stat", "re");
   if (fp == NULL) {
     return 1;
   }
@@ -118,7 +117,7 @@ static int __sysconf_nprocessors_onln() {
 }
 
 static int __get_meminfo(const char* pattern) {
-  FILE* fp = fopen("/proc/meminfo", "r");
+  FILE* fp = fopen("/proc/meminfo", "re");
   if (fp == NULL) {
     return -1;
   }
@@ -150,37 +149,15 @@ static int __sysconf_monotonic_clock() {
   return (rc == -1) ? -1 : _POSIX_VERSION;
 }
 
-long sysconf(int name) {
-    switch (name) {
-#ifdef _POSIX_ARG_MAX
+int sysconf(int name) {
+  switch (name) {
     case _SC_ARG_MAX:           return _POSIX_ARG_MAX;
-#endif
-#ifdef _POSIX2_BC_BASE_MAX
-    case _SC_BC_BASE_MAX:       return _POSIX2_BC_BASE_MAX;
-#endif
-#ifdef _POSIX2_BC_DIM_MAX
-    case _SC_BC_DIM_MAX:        return _POSIX2_BC_DIM_MAX;
-#endif
-#ifdef _POSIX2_BC_SCALE_MAX
-    case _SC_BC_SCALE_MAX:      return _POSIX2_BC_SCALE_MAX;
-#endif
-#ifdef _POSIX2_BC_STRING_MAX
-    case _SC_BC_STRING_MAX:     return _POSIX2_BC_STRING_MAX;
-#endif
     case _SC_CHILD_MAX:         return CHILD_MAX;
     case _SC_CLK_TCK:           return SYSTEM_CLK_TCK;
-#ifdef _POSIX2_COLL_WEIGHTS_MASK
-    case _SC_COLL_WEIGHTS_MAX:  return _POSIX2_COLL_WEIGHTS_MASK;
-#endif
-#ifdef _POSIX2_EXPR_NEST_MAX
-    case _SC_EXPR_NEST_MAX:    return _POSIX2_EXPR_NEST_MAX;
-#endif
-#ifdef _POSIX2_LINE_MAX
     case _SC_LINE_MAX:          return _POSIX2_LINE_MAX;
-#endif
     case _SC_NGROUPS_MAX:       return NGROUPS_MAX;
     case _SC_OPEN_MAX:          return OPEN_MAX;
-    //case _SC_PASS_MAX:          return PASS_MAX;
+    case _SC_PASS_MAX:          return PASS_MAX;
     case _SC_2_C_BIND:          return SYSTEM_2_C_BIND;
     case _SC_2_C_DEV:           return SYSTEM_2_C_DEV;
     case _SC_2_C_VERSION:       return SYSTEM_2_C_VER;
@@ -191,42 +168,20 @@ long sysconf(int name) {
     case _SC_2_SW_DEV:          return SYSTEM_2_SW_DEV;
     case _SC_2_UPE:             return SYSTEM_2_UPE;
     case _SC_2_VERSION:         return SYSTEM_2_VERSION;
-#ifdef _POSIX_JOB_CONTROL
     case _SC_JOB_CONTROL:       return _POSIX_JOB_CONTROL;
-#endif
-#ifdef _POSIX_SAVED_IDS
     case _SC_SAVED_IDS:         return _POSIX_SAVED_IDS;
-#endif
-#ifdef _POSIX_VERSION
     case _SC_VERSION:           return _POSIX_VERSION;
-#endif
-    //case _SC_RE_DUP_<AX:        return ;
+    case _SC_RE_DUP_MAX:        return _POSIX_RE_DUP_MAX;
     case _SC_STREAM_MAX:        return FOPEN_MAX;
-    //case _SC_TZNAME_MAX:        return ;
-#if _XOPEN_CRYPT
+    case _SC_TZNAME_MAX:        return _POSIX_TZNAME_MAX;
     case _SC_XOPEN_CRYPT:       return _XOPEN_CRYPT;
-#endif
-#ifdef _XOPEN_ENH_I18N
     case _SC_XOPEN_ENH_I18N:    return _XOPEN_ENH_I18N;
-#endif
-#ifdef _XOPEN_SHM
-    case _SC_XOPEN_SHM:         return _XOPEN_SHM;
-#endif
-#ifdef _XOPEN_VERSION
+    //case _SC_XOPEN_SHM:         return _XOPEN_SHM;
     case _SC_XOPEN_VERSION:     return _XOPEN_VERSION;
-#endif
-#ifdef _XOPEN_XCU_VERSION
     case _SC_XOPEN_XCU_VERSION: return _XOPEN_XCU_VERSION;
-#endif
-#ifdef _XOPEN_REALTIME
     case _SC_XOPEN_REALTIME:    return _XOPEN_REALTIME;
-#endif
-#ifdef _XOPEN_REALTIME_THREADS
     case _SC_XOPEN_REALTIME_THREADS: return _XOPEN_REALTIME_THREADS;
-#endif
-#ifdef _XOPEN_LEGACY
     case _SC_XOPEN_LEGACY:      return _XOPEN_LEGACY;
-#endif
     case _SC_ATEXIT_MAX:        return SYSTEM_ATEXIT_MAX;
     case _SC_IOV_MAX:           return SYSTEM_IOV_MAX;
 
@@ -234,71 +189,35 @@ long sysconf(int name) {
     case _SC_PAGE_SIZE:
         return PAGE_SIZE;
 
-#ifdef _XOPEN_UNIX
     case _SC_XOPEN_UNIX:        return _XOPEN_UNIX;
-#endif
 
     // XXX: TODO: XBS5 nonsense
 
-#ifdef AIO_LISTIO_MAX
-    case _SC_AIO_LISTIO_MAX:       return AIO_LISTIO_MAX;
-#endif
-#ifdef AIO_MAX
-    case _SC_AIO_MAX:              return AIO_MAX;
-#endif
-#ifdef AIO_PRIO_DELTA_MAX
-    case _SC_AIO_PRIO_DELTA_MAX:   return AIO_PRIO_DELTA_MAX;
-#endif
+    //case _SC_AIO_LISTIO_MAX:       return AIO_LISTIO_MAX;
+    //case _SC_AIO_MAX:              return AIO_MAX;
+    //case _SC_AIO_PRIO_DELTA_MAX:   return AIO_PRIO_DELTA_MAX;
     case _SC_DELAYTIMER_MAX:    return SYSTEM_DELAYTIMER_MAX;
     case _SC_MQ_OPEN_MAX:       return SYSTEM_MQ_OPEN_MAX;
     case _SC_MQ_PRIO_MAX:       return SYSTEM_MQ_PRIO_MAX;
     case _SC_RTSIG_MAX:         return RTSIG_MAX;
     case _SC_SEM_NSEMS_MAX:     return SYSTEM_SEM_NSEMS_MAX;
-    case _SC_SEM_VALUE_MAX:     return SYSTEM_SEM_VALUE_MAX;
+    case _SC_SEM_VALUE_MAX:     return SEM_VALUE_MAX;
     case _SC_SIGQUEUE_MAX:      return SYSTEM_SIGQUEUE_MAX;
     case _SC_TIMER_MAX:         return SYSTEM_TIMER_MAX;
-#ifdef _POSIX_ASYNCHRONOUS_IO
-    case _SC_ASYNCHRONOUS_IO:   return _POSIX_ASYNCHRONOUS_IO;
-#endif
-#ifdef _POSIX_FSYNC
+    //case _SC_ASYNCHRONOUS_IO:   return _POSIX_ASYNCHRONOUS_IO;
     case _SC_FSYNC:             return _POSIX_FSYNC;
-#endif
-#ifdef _POSIX_MAPPED_FILES
     case _SC_MAPPED_FILES:      return _POSIX_MAPPED_FILES;
-#endif
-#ifdef _POSIX_MEMLOCK
-    case _SC_MEMLOCK:           return _POSIX_MEMLOCK;
-#endif
-#ifdef _POSIX_MEMLOCK_RANGE
-    case _SC_MEMLOCK_RANGE:     return _POSIX_MEMLOCK_RANGE
-#endif
-#ifdef _POSIX_MEMORY_PROTECTION
-    case _SC_MEMORY_PROTECTION: return _POSIX_MEMORY_PROTECTION;
-#endif
-#ifdef _POSIX_MESSAGE_PASSING
-    case _SC_MESSAGE_PASSING:   return _POSIX_MESSAGE_PASSING;
-#endif
-#ifdef _POSIX_PRIORITIZED_IO
-    case _SC_PRIORITIZED_IO:    return _POSIX_PRIORITIZED_IO;
-#endif
-#ifdef _POSIX_PRIORITY_SCHEDULING
+    //case _SC_MEMLOCK:           return _POSIX_MEMLOCK;
+    //case _SC_MEMLOCK_RANGE:     return _POSIX_MEMLOCK_RANGE;
+    //case _SC_MEMORY_PROTECTION: return _POSIX_MEMORY_PROTECTION;
+    //case _SC_MESSAGE_PASSING:   return _POSIX_MESSAGE_PASSING;
+    //case _SC_PRIORITIZED_IO:    return _POSIX_PRIORITIZED_IO;
     case _SC_PRIORITY_SCHEDULING:  return _POSIX_PRIORITY_SCHEDULING;
-#endif
-#ifdef _POSIX_REALTIME_SIGNALS
     case _SC_REALTIME_SIGNALS:  return _POSIX_REALTIME_SIGNALS;
-#endif
-#ifdef _POSIX_SEMAPHORES
     case _SC_SEMAPHORES:        return _POSIX_SEMAPHORES;
-#endif
-#ifdef _POSIX_SHARED_MEMORY_OBJECTS
-    case _SC_SHARED_MEMORY_OBJECTS:  return _POSIX_SHARED_MEMORY_OBJECTS;
-#endif
-#ifdef _POSIX_SYNCHRONIZED_IO
+    //case _SC_SHARED_MEMORY_OBJECTS:  return _POSIX_SHARED_MEMORY_OBJECTS;
     case _SC_SYNCHRONIZED_IO:   return _POSIX_SYNCHRONIZED_IO;
-#endif
-#ifdef _POSIX_TIMERS
     case _SC_TIMERS:            return _POSIX_TIMERS;
-#endif
 
     case _SC_GETGR_R_SIZE_MAX: return 1024;
     case _SC_GETPW_R_SIZE_MAX: return 1024;
@@ -314,25 +233,15 @@ long sysconf(int name) {
     case _SC_THREAD_STACK_MIN:    return PTHREAD_STACK_MIN;
     case _SC_THREAD_THREADS_MAX:  return SYSTEM_THREAD_THREADS_MAX;
     case _SC_TTY_NAME_MAX:        return SYSTEM_TTY_NAME_MAX;
-#ifdef _POSIX_THREADS
     case _SC_THREADS:             return _POSIX_THREADS;
-#endif
 
     case _SC_THREAD_ATTR_STACKADDR:   return -1; // Removed in POSIX 2008
     case _SC_THREAD_ATTR_STACKSIZE:   return -1; // Removed in POSIX 2008
 
-#ifdef _POSIX_THREAD_PRIORITY_SCHEDULING
-    case _SC_THREAD_PRIORITY_SCHEDULING:  return _POSIX_THREAD_PRIORITY_SCHEDULING;
-#endif
-#ifdef _POSIX_THREAD_PRIO_INHERIT
+    //case _SC_THREAD_PRIORITY_SCHEDULING:  return _POSIX_THREAD_PRIORITY_SCHEDULING;
     case _SC_THREAD_PRIO_INHERIT:         return _POSIX_THREAD_PRIO_INHERIT;
-#endif
-#ifdef _POSIX_THREAD_PRIO_PROTECT
     case _SC_THREAD_PRIO_PROTECT: return _POSIX_THREAD_PRIO_PROTECT;
-#endif
-#ifdef _POSIX_THREAD_SAFE_FUNCTIONS
-    case _SC_THREAD_SAFE_FUNCTIONS:  return _POSIX_THREAD_SAFE_FUNCTIONS
-#endif
+    //case _SC_THREAD_SAFE_FUNCTIONS:  return _POSIX_THREAD_SAFE_FUNCTIONS
 
     case _SC_MONOTONIC_CLOCK:   return __sysconf_monotonic_clock();
     case _SC_NPROCESSORS_CONF:  return __sysconf_nprocessors_conf();
@@ -341,9 +250,9 @@ long sysconf(int name) {
     case _SC_AVPHYS_PAGES:      return __sysconf_avphys_pages();
 
     default:
-       /* Posix says EINVAL is the only error that shall be returned,
-        * but GLibc uses ENOSYS */
-        errno = ENOSYS;
-        return -1;
-    }
+      // Posix says EINVAL is the only error that shall be returned,
+      // but glibc uses ENOSYS.
+      errno = ENOSYS;
+      return -1;
+  }
 }

libc/bionic/system_properties.cpp

@@ -26,6 +26,7 @@
  * SUCH DAMAGE.
  */
 #include <new>
+#include <stdatomic.h>
 #include <stdio.h>
 #include <stdint.h>
 #include <stdlib.h>
@@ -45,7 +46,6 @@
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <netinet/in.h>
-#include <unistd.h>
 
 #define _REALLY_INCLUDE_SYS__SYSTEM_PROPERTIES_H_
 #include <sys/_system_properties.h>
@@ -80,6 +80,16 @@ struct prop_bt {
     uint8_t namelen;
     uint8_t reserved[3];
 
+    // TODO: The following fields should be declared as atomic_uint32_t.
+    // They should be assigned to with release semantics, instead of using
+    // explicit fences.  Unfortunately, the read accesses are generally
+    // followed by more dependent read accesses, and the dependence
+    // is assumed to enforce memory ordering.  Which it does on supported
+    // hardware.  This technically should use memory_order_consume, if
+    // that worked as intended.
+    // We should also avoid rereading these fields redundantly, since not
+    // all processor implementations ensure that multiple loads from the
+    // same field are carried out in the right order.
     volatile uint32_t prop;
 
     volatile uint32_t left;
@@ -93,7 +103,8 @@ struct prop_bt {
         this->namelen = name_length;
         memcpy(this->name, name, name_length);
         this->name[name_length] = '\0';
-        ANDROID_MEMBAR_FULL();
+        ANDROID_MEMBAR_FULL();  // TODO: Instead use a release store
+                                // for subsequent pointer assignment.
     }
 
 private:
@@ -102,14 +113,15 @@ private:
 
 struct prop_area {
     uint32_t bytes_used;
-    volatile uint32_t serial;
+    atomic_uint_least32_t serial;
     uint32_t magic;
     uint32_t version;
     uint32_t reserved[28];
     char data[0];
 
     prop_area(const uint32_t magic, const uint32_t version) :
-        serial(0), magic(magic), version(version) {
+        magic(magic), version(version) {
+        atomic_init(&serial, 0);
         memset(reserved, 0, sizeof(reserved));
         // Allocate enough space for the root node.
         bytes_used = sizeof(prop_bt);
@@ -120,7 +132,7 @@ private:
 };
 
 struct prop_info {
-    volatile uint32_t serial;
+    atomic_uint_least32_t serial;
     char value[PROP_VALUE_MAX];
     char name[0];
 
@@ -128,10 +140,11 @@ struct prop_info {
               const uint8_t valuelen) {
         memcpy(this->name, name, namelen);
         this->name[namelen] = '\0';
-        this->serial = (valuelen << 24);
+        atomic_init(&this->serial, valuelen << 24);
         memcpy(this->value, value, valuelen);
         this->value[valuelen] = '\0';
-        ANDROID_MEMBAR_FULL();
+        ANDROID_MEMBAR_FULL();  // TODO: Instead use a release store
+                                // for subsequent point assignment.
     }
 private:
     DISALLOW_COPY_AND_ASSIGN(prop_info);
@@ -188,14 +201,6 @@ static int map_prop_area_rw()
         return -1;
     }
 
-    // TODO: Is this really required ? Does android run on any kernels that
-    // don't support O_CLOEXEC ?
-    const int ret = fcntl(fd, F_SETFD, FD_CLOEXEC);
-    if (ret < 0) {
-        close(fd);
-        return -1;
-    }
-
     if (ftruncate(fd, PA_SIZE) < 0) {
         close(fd);
         return -1;
@@ -258,18 +263,9 @@ static int map_fd_ro(const int fd) {
 
 static int map_prop_area()
 {
-    int fd(open(property_filename, O_RDONLY | O_NOFOLLOW | O_CLOEXEC));
-    if (fd >= 0) {
-        /* For old kernels that don't support O_CLOEXEC */
-        const int ret = fcntl(fd, F_SETFD, FD_CLOEXEC);
-        if (ret < 0) {
-            close(fd);
-            return -1;
-        }
-    }
-
+    int fd = open(property_filename, O_CLOEXEC | O_NOFOLLOW | O_RDONLY);
     bool close_fd = true;
-    if ((fd < 0) && (errno == ENOENT)) {
+    if (fd == -1 && errno == ENOENT) {
         /*
          * For backwards compatibility, if the file doesn't
          * exist, we use the environment to get the file descriptor.
@@ -598,6 +594,14 @@ const prop_info *__system_property_find(const char *name)
     return find_property(root_node(), name, strlen(name), NULL, 0, false);
 }
 
+// The C11 standard doesn't allow atomic loads from const fields,
+// though C++11 does.  Fudge it until standards get straightened out.
+static inline uint_least32_t load_const_atomic(const atomic_uint_least32_t* s,
+                                               memory_order mo) {
+    atomic_uint_least32_t* non_const_s = const_cast<atomic_uint_least32_t*>(s);
+    return atomic_load_explicit(non_const_s, mo);
+}
+
 int __system_property_read(const prop_info *pi, char *name, char *value)
 {
     if (__predict_false(compat_mode)) {
@@ -605,11 +609,20 @@ int __system_property_read(const prop_info *pi, char *name, char *value)
     }
 
     while (true) {
-        uint32_t serial = __system_property_serial(pi);
+        uint32_t serial = __system_property_serial(pi); // acquire semantics
         size_t len = SERIAL_VALUE_LEN(serial);
         memcpy(value, pi->value, len + 1);
-        ANDROID_MEMBAR_FULL();
-        if (serial == pi->serial) {
+        // TODO: Fix the synchronization scheme here.
+        // There is no fully supported way to implement this kind
+        // of synchronization in C++11, since the memcpy races with
+        // updates to pi, and the data being accessed is not atomic.
+        // The following fence is unintuitive, but would be the
+        // correct one if memcpy used memory_order_relaxed atomic accesses.
+        // In practice it seems unlikely that the generated code would
+        // would be any different, so this should be OK.
+        atomic_thread_fence(memory_order_acquire);
+        if (serial ==
+                load_const_atomic(&(pi->serial), memory_order_relaxed)) {
             if (name != 0) {
                 strcpy(name, pi->name);
             }
@@ -658,14 +671,24 @@ int __system_property_update(prop_info *pi, const char *value, unsigned int len)
     if (len >= PROP_VALUE_MAX)
         return -1;
 
-    pi->serial = pi->serial | 1;
-    ANDROID_MEMBAR_FULL();
+    uint32_t serial = atomic_load_explicit(&pi->serial, memory_order_relaxed);
+    serial |= 1;
+    atomic_store_explicit(&pi->serial, serial, memory_order_relaxed);
+    // The memcpy call here also races.  Again pretend it
+    // used memory_order_relaxed atomics, and use the analogous
+    // counterintuitive fence.
+    atomic_thread_fence(memory_order_release);
     memcpy(pi->value, value, len + 1);
-    ANDROID_MEMBAR_FULL();
-    pi->serial = (len << 24) | ((pi->serial + 1) & 0xffffff);
+    atomic_store_explicit(
+        &pi->serial,
+        (len << 24) | ((serial + 1) & 0xffffff),
+        memory_order_release);
     __futex_wake(&pi->serial, INT32_MAX);
 
-    pa->serial++;
+    atomic_store_explicit(
+        &pa->serial,
+        atomic_load_explicit(&pa->serial, memory_order_relaxed) + 1,
+        memory_order_release);
     __futex_wake(&pa->serial, INT32_MAX);
 
     return 0;
@@ -688,17 +711,25 @@ int __system_property_add(const char *name, unsigned int namelen,
     if (!pi)
         return -1;
 
-    pa->serial++;
+    // There is only a single mutator, but we want to make sure that
+    // updates are visible to a reader waiting for the update.
+    atomic_store_explicit(
+        &pa->serial,
+        atomic_load_explicit(&pa->serial, memory_order_relaxed) + 1,
+        memory_order_release);
     __futex_wake(&pa->serial, INT32_MAX);
     return 0;
 }
 
+// Wait for non-locked serial, and retrieve it with acquire semantics.
 unsigned int __system_property_serial(const prop_info *pi)
 {
-    uint32_t serial = pi->serial;
+    uint32_t serial = load_const_atomic(&pi->serial, memory_order_acquire);
     while (SERIAL_DIRTY(serial)) {
-        __futex_wait(const_cast<volatile uint32_t*>(&pi->serial), serial, NULL);
-        serial = pi->serial;
+        __futex_wait(const_cast<volatile void *>(
+                        reinterpret_cast<const void *>(&pi->serial)),
+                     serial, NULL);
+        serial = load_const_atomic(&pi->serial, memory_order_acquire);
     }
     return serial;
 }
@@ -706,12 +737,14 @@ unsigned int __system_property_serial(const prop_info *pi)
 unsigned int __system_property_wait_any(unsigned int serial)
 {
     prop_area *pa = __system_property_area__;
+    uint32_t my_serial;
 
     do {
         __futex_wait(&pa->serial, serial, NULL);
-    } while (pa->serial == serial);
+        my_serial = atomic_load_explicit(&pa->serial, memory_order_acquire);
+    } while (my_serial == serial);
 
-    return pa->serial;
+    return my_serial;
 }
 
 const prop_info *__system_property_find_nth(unsigned n)

libc/bionic/time64.c

@@ -748,10 +748,24 @@ static int valid_tm_mon( const struct TM* date ) {
 char *asctime64_r( const struct TM* date, char *result ) {
     /* I figure everything else can be displayed, even hour 25, but if
        these are out of range we walk off the name arrays */
-    if( !valid_tm_wday(date) || !valid_tm_mon(date) )
+    if (!valid_tm_wday(date) || !valid_tm_mon(date)) {
         return NULL;
+    }
 
-    sprintf(result, "%.3s %.3s%3d %.2d:%.2d:%.2d %d\n",
+    /* Docs state this function does not support years beyond 9999. */
+    if (1900 + date->tm_year > 9999) {
+        return NULL;
+    }
+
+    /*
+     * The IBM docs for this function state that the result buffer can be
+     * assumed to be at least 26 bytes wide. The docs also state that this is
+     * only valid for years <= 9999, so we know this format string will not
+     * print more than that many characters.
+     *
+     * http://www-01.ibm.com/support/knowledgecenter/SSLTBW_2.1.0/com.ibm.zos.v2r1.bpxbd00/asctimer.htm
+     */
+    snprintf(result, 26, "%.3s %.3s%3d %.2d:%.2d:%.2d %d\n",
         wday_name[date->tm_wday],
         mon_name[date->tm_mon],
         date->tm_mday, date->tm_hour,

libc/dns/gethnamaddr.c

@@ -565,7 +565,7 @@ android_read_hostent(FILE* proxy)
 	char buf[4];
 	if (fread(buf, 1, sizeof(buf), proxy) != sizeof(buf)) return NULL;
 
-	/* This is reading serialized data from system/netd/server/DnsProxyListener.cpp
+	/* This is reading serialized data from system/netd/DnsProxyListener.cpp
 	 * and changes here need to be matched there */
 	int result_code = strtol(buf, NULL, 10);
 	if (result_code != DnsProxyQueryResult) {
@@ -763,7 +763,7 @@ gethostbyname_internal(const char *name, int af, res_state res, unsigned netid,
 
 	netid = __netdClientDispatch.netIdForResolv(netid);
 
-	/* This is writing to system/netd/server/DnsProxyListener.cpp and changes
+	/* This is writing to system/netd/DnsProxyListener.cpp and changes
 	 * here need to be matched there */
 	if (fprintf(proxy, "gethostbyname %u %s %d",
 			netid,
@@ -899,7 +899,7 @@ _sethtent(int f)
     res_static  rs = __res_get_static();
     if (rs == NULL) return;
 	if (!rs->hostf)
-		rs->hostf = fopen(_PATH_HOSTS, "r" );
+		rs->hostf = fopen(_PATH_HOSTS, "re" );
 	else
 		rewind(rs->hostf);
 	rs->stayopen = f;
@@ -925,7 +925,7 @@ _gethtent(void)
 	int af, len;
 	res_static  rs = __res_get_static();
 
-	if (!rs->hostf && !(rs->hostf = fopen(_PATH_HOSTS, "r" ))) {
+	if (!rs->hostf && !(rs->hostf = fopen(_PATH_HOSTS, "re" ))) {
 		h_errno = NETDB_INTERNAL;
 		return NULL;
 	}

libc/dns/include/resolv_cache.h

@@ -32,6 +32,11 @@
 #include <sys/cdefs.h>
 
 struct __res_state;
+struct resolv_cache;  /* forward */
+
+/* Gets the cache for a network. Returned cache might be NULL. */
+__LIBC_HIDDEN__
+extern struct resolv_cache* __get_res_cache(unsigned netid);
 
 /* sets the name server addresses to the provided res_state structure. The
  * name servers are retrieved from the cache which is associated
@@ -48,7 +53,7 @@ typedef enum {
 
 __LIBC_HIDDEN__
 extern ResolvCacheStatus
-_resolv_cache_lookup( unsigned              netid,
+_resolv_cache_lookup( struct resolv_cache*  cache,
                       const void*           query,
                       int                   querylen,
                       void*                 answer,
@@ -60,7 +65,7 @@ _resolv_cache_lookup( unsigned              netid,
  */
 __LIBC_HIDDEN__
 extern void
-_resolv_cache_add( unsigned              netid,
+_resolv_cache_add( struct resolv_cache*  cache,
                    const void*           query,
                    int                   querylen,
                    const void*           answer,
@@ -69,7 +74,7 @@ _resolv_cache_add( unsigned              netid,
 /* Notify the cache a request failed */
 __LIBC_HIDDEN__
 extern void
-_resolv_cache_query_failed( unsigned     netid,
+_resolv_cache_query_failed( struct resolv_cache* cache,
                    const void* query,
                    int         querylen);
 

libc/dns/include/resolv_netid.h

@@ -36,7 +36,7 @@
 #include <netinet/in.h>
 
 /*
- * Passing NETID_UNSET as the netId causes system/netd/server/DnsProxyListener.cpp to
+ * Passing NETID_UNSET as the netId causes system/netd/DnsProxyListener.cpp to
  * fill in the appropriate default netId for the query.
  */
 #define NETID_UNSET 0u
@@ -72,9 +72,6 @@ struct hostent *android_gethostbyaddrfornet_proxy(const void *, socklen_t, int ,
 int android_getnameinfofornet(const struct sockaddr *, socklen_t, char *, size_t, char *, size_t,
 		 int, unsigned, unsigned);
 
-/* delete the cache associated with a certain network */
-extern void _resolv_delete_cache_for_net(unsigned netid);
-
 __END_DECLS
 
 #endif /* _RESOLV_NETID_H */

libc/dns/include/resolv_private.h

@@ -426,7 +426,7 @@ int		b64_ntop(u_char const *, size_t, char *, size_t);
 int		b64_pton(char const *, u_char *, size_t);
 #endif
 int		loc_aton(const char *, u_char *);
-const char *	loc_ntoa(const u_char *, char *);
+const char *	loc_ntoa(const u_char *, char *, size_t);
 int		dn_skipname(const u_char *, const u_char *);
 void		putlong(uint32_t, u_char *);
 void		putshort(uint16_t, u_char *);
@@ -498,16 +498,6 @@ __LIBC_HIDDEN__ void res_setnetid(res_state, unsigned);
 __LIBC_HIDDEN__ void res_setmark(res_state, unsigned);
 u_int  res_randomid(void);
 
-#ifdef __i386__
-# define __socketcall extern __attribute__((__cdecl__))
-#else
-# define __socketcall extern
-#endif
-
-__socketcall int __connect(int, const struct sockaddr*, socklen_t);
-
-#undef __socketcall
-
 __END_DECLS
 
 #pragma GCC visibility pop

libc/dns/nameser/ns_name.c

@@ -43,12 +43,6 @@ __RCSID("$NetBSD: ns_name.c,v 1.9 2012/03/13 21:13:39 christos Exp $");
 #include <stdlib.h>
 #include <limits.h>
 
-#ifdef SPRINTF_CHAR
-# define SPRINTF(x) ((int)strlen(sprintf/**/x))
-#else
-# define SPRINTF(x) (sprintf x)
-#endif
-
 #define NS_TYPE_ELT			0x40 /* EDNS0 extended label type */
 #define DNS_LABELTYPE_BITSTRING		0x41
 
@@ -1012,31 +1006,31 @@ decode_bitstring(const unsigned char **cpp, char *dn, const char *eom)
 		return(-1);
 
 	cp++;
-	i = SPRINTF((dn, "\\[x"));
+	i = snprintf(dn, eom - dn, "\\[x");
 	if (i < 0)
 		return (-1);
 	dn += i;
 	for (b = blen; b > 7; b -= 8, cp++) {
-		i = SPRINTF((dn, "%02x", *cp & 0xff));
+		i = snprintf(dn, eom - dn, "%02x", *cp & 0xff);
 		if (i < 0)
 			return (-1);
 		dn += i;
 	}
 	if (b > 4) {
 		tc = *cp++;
-		i = SPRINTF((dn, "%02x", tc & (0xff << (8 - b))));
+		i = snprintf(dn, eom - dn, "%02x", tc & (0xff << (8 - b)));
 		if (i < 0)
 			return (-1);
 		dn += i;
 	} else if (b > 0) {
 		tc = *cp++;
-		i = SPRINTF((dn, "%1x",
-			       (((u_int32_t)tc >> 4) & 0x0f) & (0x0f << (4 - b))));
+		i = snprintf(dn, eom - dn, "%1x",
+			       (((u_int32_t)tc >> 4) & 0x0f) & (0x0f << (4 - b)));
 		if (i < 0)
 			return (-1);
 		dn += i;
 	}
-	i = SPRINTF((dn, "/%d]", blen));
+	i = snprintf(dn, eom - dn, "/%d]", blen);
 	if (i < 0)
 		return (-1);
 	dn += i;

libc/dns/nameser/ns_print.c

@@ -48,12 +48,6 @@ __RCSID("$NetBSD: ns_print.c,v 1.11 2012/03/13 21:13:39 christos Exp $");
 #include <string.h>
 #include <ctype.h>
 
-#ifdef SPRINTF_CHAR
-# define SPRINTF(x) ((int)strlen(sprintf/**/x))
-#else
-# define SPRINTF(x) (sprintf x)
-#endif
-
 #ifndef MIN
 #define	MIN(x,y)	((x)<(y)?(x):(y))
 #endif
@@ -155,7 +149,7 @@ ns_sprintrrf(const u_char *msg, size_t msglen,
 	 */
 	T(x = ns_format_ttl(ttl, buf, buflen));
 	addlen((size_t)x, &buf, &buflen);
-	len = SPRINTF((tmp, " %s %s", p_class(class), p_type(type)));
+	len = snprintf(tmp, sizeof(tmp), " %s %s", p_class(class), p_type(type));
 	T(addstr(tmp, (size_t)len, &buf, &buflen));
 	T(spaced = addtab((size_t)(x + len), (size_t)16, spaced, &buf, &buflen));
 
@@ -218,7 +212,7 @@ ns_sprintrrf(const u_char *msg, size_t msglen,
 		/* Serial number. */
 		t = ns_get32(rdata);  rdata += NS_INT32SZ;
 		T(addstr("\t\t\t\t\t", (size_t)5, &buf, &buflen));
-		len = SPRINTF((tmp, "%lu", t));
+		len = snprintf(tmp, sizeof(tmp), "%lu", t);
 		T(addstr(tmp, (size_t)len, &buf, &buflen));
 		T(spaced = addtab((size_t)len, (size_t)16, spaced, &buf, &buflen));
 		T(addstr("; serial\n", (size_t)9, &buf, &buflen));
@@ -275,7 +269,7 @@ ns_sprintrrf(const u_char *msg, size_t msglen,
 		/* Priority. */
 		t = ns_get16(rdata);
 		rdata += NS_INT16SZ;
-		len = SPRINTF((tmp, "%u ", t));
+		len = snprintf(tmp, sizeof(tmp), "%u ", t);
 		T(addstr(tmp, (size_t)len, &buf, &buflen));
 
 		/* Target. */
@@ -293,7 +287,7 @@ ns_sprintrrf(const u_char *msg, size_t msglen,
 		/* Priority. */
 		t = ns_get16(rdata);
 		rdata += NS_INT16SZ;
-		len = SPRINTF((tmp, "%u ", t));
+		len = snprintf(tmp, sizeof(tmp), "%u ", t);
 		T(addstr(tmp, (size_t)len, &buf, &buflen));
 
 		/* Name1. */
@@ -344,7 +338,7 @@ ns_sprintrrf(const u_char *msg, size_t msglen,
 		char t[255];
 
 		/* XXX protocol format checking? */
-		(void) loc_ntoa(rdata, t);
+		(void) loc_ntoa(rdata, t, sizeof(t));
 		T(addstr(t, strlen(t), &buf, &buflen));
 		break;
 	    }
@@ -359,7 +353,7 @@ ns_sprintrrf(const u_char *msg, size_t msglen,
 		/* Order, Precedence. */
 		order = ns_get16(rdata);	rdata += NS_INT16SZ;
 		preference = ns_get16(rdata);	rdata += NS_INT16SZ;
-		len = SPRINTF((t, "%u %u ", order, preference));
+		len = snprintf(t, sizeof(t), "%u %u ", order, preference);
 		T(addstr(t, (size_t)len, &buf, &buflen));
 
 		/* Flags. */
@@ -401,7 +395,7 @@ ns_sprintrrf(const u_char *msg, size_t msglen,
 		priority = ns_get16(rdata);  rdata += NS_INT16SZ;
 		weight   = ns_get16(rdata);  rdata += NS_INT16SZ;
 		port     = ns_get16(rdata);  rdata += NS_INT16SZ;
-		len = SPRINTF((t, "%u %u %u ", priority, weight, port));
+		len = snprintf(t, sizeof(t), "%u %u %u ", priority, weight, port);
 		T(addstr(t, (size_t)len, &buf, &buflen));
 
 		/* Server. */
@@ -432,7 +426,7 @@ ns_sprintrrf(const u_char *msg, size_t msglen,
 		rdata += NS_INADDRSZ;
 
 		/* Protocol. */
-		len = SPRINTF((tmp, " %u ( ", *rdata));
+		len = snprintf(tmp, sizeof(tmp), " %u ( ", *rdata);
 		T(addstr(tmp, (size_t)len, &buf, &buflen));
 		rdata += NS_INT8SZ;
 
@@ -449,7 +443,7 @@ ns_sprintrrf(const u_char *msg, size_t msglen,
 						lcnt = 10;
 						spaced = 0;
 					}
-					len = SPRINTF((tmp, "%d ", n));
+					len = snprintf(tmp, sizeof(tmp), "%d ", n);
 					T(addstr(tmp, (size_t)len, &buf, &buflen));
 					lcnt--;
 				}
@@ -480,8 +474,8 @@ ns_sprintrrf(const u_char *msg, size_t msglen,
 		keyflags = ns_get16(rdata);  rdata += NS_INT16SZ;
 		protocol = *rdata++;
 		algorithm = *rdata++;
-		len = SPRINTF((tmp, "0x%04x %u %u",
-			       keyflags, protocol, algorithm));
+		len = snprintf(tmp, sizeof(tmp), "0x%04x %u %u",
+			       keyflags, protocol, algorithm);
 		T(addstr(tmp, (size_t)len, &buf, &buflen));
 
 		/* Public key data. */
@@ -502,7 +496,7 @@ ns_sprintrrf(const u_char *msg, size_t msglen,
 		}
 		if (len > 15)
 			T(addstr(" )", (size_t)2, &buf, &buflen));
-		n = SPRINTF((tmp, " ; key_tag= %u", key_id));
+		n = snprintf(tmp, sizeof(tmp), " ; key_tag= %u", key_id);
 		T(addstr(tmp, (size_t)n, &buf, &buflen));
 
 		break;
@@ -524,25 +518,25 @@ ns_sprintrrf(const u_char *msg, size_t msglen,
 		algorithm = *rdata++;
 		labels = *rdata++;
 		t = ns_get32(rdata);  rdata += NS_INT32SZ;
-		len = SPRINTF((tmp, "%s %d %d %lu ",
-			       p_type((int)typ), algorithm, labels, t));
+		len = snprintf(tmp, sizeof(tmp), "%s %d %d %lu ",
+			       p_type((int)typ), algorithm, labels, t);
 		T(addstr(tmp, (size_t)len, &buf, &buflen));
 		if (labels > (u_int)dn_count_labels(name))
 			goto formerr;
 
 		/* Signature expiry. */
 		t = ns_get32(rdata);  rdata += NS_INT32SZ;
-		len = SPRINTF((tmp, "%s ", p_secstodate(t)));
+		len = snprintf(tmp, sizeof(tmp), "%s ", p_secstodate(t));
 		T(addstr(tmp, (size_t)len, &buf, &buflen));
 
 		/* Time signed. */
 		t = ns_get32(rdata);  rdata += NS_INT32SZ;
-		len = SPRINTF((tmp, "%s ", p_secstodate(t)));
+		len = snprintf(tmp, sizeof(tmp), "%s ", p_secstodate(t));
 		T(addstr(tmp, (size_t)len, &buf, &buflen));
 
 		/* Signature Footprint. */
 		footprint = ns_get16(rdata);  rdata += NS_INT16SZ;
-		len = SPRINTF((tmp, "%u ", footprint));
+		len = snprintf(tmp, sizeof(tmp), "%u ", footprint);
 		T(addstr(tmp, (size_t)len, &buf, &buflen));
 
 		/* Signer's name. */
@@ -579,7 +573,7 @@ ns_sprintrrf(const u_char *msg, size_t msglen,
 		n = edata - rdata;
 		for (c = 0; c < n*8; c++)
 			if (NS_NXT_BIT_ISSET(c, rdata)) {
-				len = SPRINTF((tmp, " %s", p_type((int)c)));
+				len = snprintf(tmp, sizeof(tmp), " %s", p_type((int)c));
 				T(addstr(tmp, (size_t)len, &buf, &buflen));
 			}
 		break;
@@ -596,7 +590,7 @@ ns_sprintrrf(const u_char *msg, size_t msglen,
 		key_tag = ns_get16(rdata); rdata += NS_INT16SZ;
 		alg = (u_int) *rdata++;
 
-		len = SPRINTF((tmp1, "%d %d %d ", c_type, key_tag, alg));
+		len = snprintf(tmp1, sizeof(tmp1), "%d %d %d ", c_type, key_tag, alg);
 		T(addstr(tmp1, (size_t)len, &buf, &buflen));
 		siz = (edata-rdata)*4/3 + 4; /* "+4" accounts for trailing \0 */
 		if (siz > sizeof(base64_cert) * 3/4) {
@@ -640,12 +634,12 @@ ns_sprintrrf(const u_char *msg, size_t msglen,
 
 		/* Inception. */
 		t = ns_get32(rdata);  rdata += NS_INT32SZ;
-		len = SPRINTF((tmp, "%s ", p_secstodate(t)));
+		len = snprintf(tmp, sizeof(tmp), "%s ", p_secstodate(t));
 		T(addstr(tmp, (size_t)len, &buf, &buflen));
 
 		/* Experation. */
 		t = ns_get32(rdata);  rdata += NS_INT32SZ;
-		len = SPRINTF((tmp, "%s ", p_secstodate(t)));
+		len = snprintf(tmp, sizeof(tmp), "%s ", p_secstodate(t));
 		T(addstr(tmp, (size_t)len, &buf, &buflen));
 
 		/* Mode , Error, Key Size. */
@@ -653,7 +647,7 @@ ns_sprintrrf(const u_char *msg, size_t msglen,
 		mode = ns_get16(rdata);  rdata += NS_INT16SZ;
 		err  = ns_get16(rdata);  rdata += NS_INT16SZ;
 		keysize  = ns_get16(rdata);  rdata += NS_INT16SZ;
-		len = SPRINTF((tmp, "%u %u %u ", mode, err, keysize));
+		len = snprintf(tmp, sizeof(tmp), "%u %u %u ", mode, err, keysize);
 		T(addstr(tmp, (size_t)len, &buf, &buflen));
 
 		/* XXX need to dump key, print otherdata length & other data */
@@ -670,7 +664,7 @@ ns_sprintrrf(const u_char *msg, size_t msglen,
 		n = ns_get16(rdata); rdata += INT16SZ;
 		rdata += n; /* sig */
 		n = ns_get16(rdata); rdata += INT16SZ; /* original id */
-		sprintf(buf, "%d", ns_get16(rdata));
+		snprintf(buf, buflen, "%d", ns_get16(rdata));
 		rdata += INT16SZ;
 		addlen(strlen(buf), &buf, &buflen);
 		break;
@@ -682,7 +676,7 @@ ns_sprintrrf(const u_char *msg, size_t msglen,
 
 		/* prefix length */
 		if (rdlen == 0U) goto formerr;
-		len = SPRINTF((tmp, "%d ", *rdata));
+		len = snprintf(tmp, sizeof(tmp), "%d ", *rdata);
 		T(addstr(tmp, (size_t)len, &buf, &buflen));
 		pbit = *rdata;
 		if (pbit > 128) goto formerr;
@@ -710,7 +704,7 @@ ns_sprintrrf(const u_char *msg, size_t msglen,
 	    }
 
 	case ns_t_opt: {
-		len = SPRINTF((tmp, "%u bytes", class));
+		len = snprintf(tmp, sizeof(tmp), "%u bytes", class);
 		T(addstr(tmp, (size_t)len, &buf, &buflen));
 		break;
 	    }
@@ -724,21 +718,21 @@ ns_sprintrrf(const u_char *msg, size_t msglen,
 			if (rdlen < 4U) goto formerr;
 			t = ns_get16(rdata);
 			rdata += NS_INT16SZ;
-			len = SPRINTF((tmp, "%u ", t));
+			len = snprintf(tmp, sizeof(tmp), "%u ", t);
 			T(addstr(tmp, (size_t)len, &buf, &buflen));
 		} else
 			if (rdlen < 2U) goto formerr;
 
-		len = SPRINTF((tmp, "%u ", *rdata));
+		len = snprintf(tmp, sizeof(tmp), "%u ", *rdata);
 		T(addstr(tmp, (size_t)len, &buf, &buflen));
 		rdata++;
 
-		len = SPRINTF((tmp, "%u ", *rdata));
+		len = snprintf(tmp, sizeof(tmp), "%u ", *rdata);
 		T(addstr(tmp, (size_t)len, &buf, &buflen));
 		rdata++;
 
 		while (rdata < edata) {
-			len = SPRINTF((tmp, "%02X", *rdata));
+			len = snprintf(tmp, sizeof(tmp), "%02X", *rdata);
 			T(addstr(tmp, (size_t)len, &buf, &buflen));
 			rdata++;
 		}
@@ -749,17 +743,17 @@ ns_sprintrrf(const u_char *msg, size_t msglen,
 	case ns_t_nsec3param: {
 		u_int t, w, l, j, k, c;
 
-		len = SPRINTF((tmp, "%u ", *rdata));
+		len = snprintf(tmp, sizeof(tmp), "%u ", *rdata);
 		T(addstr(tmp, (size_t)len, &buf, &buflen));
 		rdata++;
 
-		len = SPRINTF((tmp, "%u ", *rdata));
+		len = snprintf(tmp, sizeof(tmp), "%u ", *rdata);
 		T(addstr(tmp, (size_t)len, &buf, &buflen));
 		rdata++;
 
 		t = ns_get16(rdata);
 		rdata += NS_INT16SZ;
-		len = SPRINTF((tmp, "%u ", t));
+		len = snprintf(tmp, sizeof(tmp), "%u ", t);
 		T(addstr(tmp, (size_t)len, &buf, &buflen));
 
 		t = *rdata++;
@@ -767,7 +761,7 @@ ns_sprintrrf(const u_char *msg, size_t msglen,
 			T(addstr("-", 1, &buf, &buflen));
 		} else {
 			while (t-- > 0) {
-				len = SPRINTF((tmp, "%02X", *rdata));
+				len = snprintf(tmp, sizeof(tmp), "%02X", *rdata);
 				T(addstr(tmp, (size_t)len, &buf, &buflen));
 				rdata++;
 			}
@@ -851,7 +845,7 @@ ns_sprintrrf(const u_char *msg, size_t msglen,
 					if ((rdata[j] & (0x80 >> k)) == 0)
 						continue;
 					c = w * 256 + j * 8 + k;
-					len = SPRINTF((tmp, " %s", p_type((ns_type)c)));
+					len = snprintf(tmp, sizeof(tmp), " %s", p_type((ns_type)c));
 					T(addstr(tmp, (size_t)len, &buf, &buflen));
 				}
 			}
@@ -875,7 +869,7 @@ ns_sprintrrf(const u_char *msg, size_t msglen,
 					if ((rdata[j] & (0x80 >> k)) == 0)
 						continue;
 					c = w * 256 + j * 8 + k;
-					len = SPRINTF((tmp, " %s", p_type((ns_type)c)));
+					len = snprintf(tmp, sizeof(tmp), " %s", p_type((ns_type)c));
 					T(addstr(tmp, (size_t)len, &buf, &buflen));
 				}
 			}
@@ -949,15 +943,15 @@ ns_sprintrrf(const u_char *msg, size_t msglen,
 			goto hexify;
 		}
 
-		len = SPRINTF((tmp, "%u ", *rdata));
+		len = snprintf(tmp, sizeof(tmp), "%u ", *rdata);
 		T(addstr(tmp, (size_t)len, &buf, &buflen));
 		rdata++;
 
-		len = SPRINTF((tmp, "%u ", *rdata));
+		len = snprintf(tmp, sizeof(tmp), "%u ", *rdata);
 		T(addstr(tmp, (size_t)len, &buf, &buflen));
 		rdata++;
 
-		len = SPRINTF((tmp, "%u ", *rdata));
+		len = snprintf(tmp, sizeof(tmp), "%u ", *rdata);
 		T(addstr(tmp, (size_t)len, &buf, &buflen));
 		rdata++;
 
@@ -1030,11 +1024,11 @@ ns_sprintrrf(const u_char *msg, size_t msglen,
 			const char *str = "record too long to print";
 			T(addstr(str, strlen(str), &buf, &buflen));
 		} else {
-			len = sprintf(tmp, "( %u ", algorithm);
+			len = snprintf(tmp, sizeof(tmp), "( %u ", algorithm);
 			T(addstr(tmp, (size_t)len, &buf, &buflen));
 
 			for (i = 0; i < hip_len; i++) {
-				len = sprintf(tmp, "%02X", *rdata);
+				len = snprintf(tmp, sizeof(tmp), "%02X", *rdata);
 				T(addstr(tmp, (size_t)len, &buf, &buflen));
 				rdata++;
 			}
@@ -1069,23 +1063,23 @@ ns_sprintrrf(const u_char *msg, size_t msglen,
 	int n, m;
 	char *p;
 
-	len = SPRINTF((tmp, "\\# %u%s\t; %s", (unsigned)(edata - rdata),
-		       rdlen != 0U ? " (" : "", comment));
+	len = snprintf(tmp, sizeof(tmp), "\\# %u%s\t; %s", (unsigned)(edata - rdata),
+		       rdlen != 0U ? " (" : "", comment);
 	T(addstr(tmp, (size_t)len, &buf, &buflen));
 	while (rdata < edata) {
 		p = tmp;
-		p += SPRINTF((p, "\n\t"));
+		p += snprintf(p, sizeof(tmp), "\n\t");
 		spaced = 0;
 		n = MIN(16, (int)(edata - rdata));
 		for (m = 0; m < n; m++)
-			p += SPRINTF((p, "%02x ", rdata[m]));
+			p += snprintf(p, sizeof(tmp) - (p - tmp), "%02x ", rdata[m]);
 		T(addstr(tmp, (size_t)(p - tmp), &buf, &buflen));
 		if (n < 16) {
 			T(addstr(")", (size_t)1, &buf, &buflen));
 			T(addtab((size_t)(p - tmp + 1), (size_t)48, spaced, &buf, &buflen));
 		}
 		p = tmp;
-		p += SPRINTF((p, "; "));
+		p += snprintf(p, sizeof(tmp), "; ");
 		for (m = 0; m < n; m++)
 			*p++ = (isascii(rdata[m]) && isprint(rdata[m]))
 				? rdata[m]

libc/dns/nameser/ns_ttl.c

@@ -36,12 +36,6 @@ __RCSID("$NetBSD: ns_ttl.c,v 1.8 2012/03/13 21:13:39 christos Exp $");
 #include <stdio.h>
 #include <string.h>
 
-#ifdef SPRINTF_CHAR
-# define SPRINTF(x) strlen(sprintf/**/x)
-#else
-# define SPRINTF(x) ((size_t)sprintf x)
-#endif
-
 /* Forward. */
 
 static int	fmt1(int t, char s, char **buf, size_t *buflen);
@@ -157,8 +151,8 @@ fmt1(int t, char s, char **buf, size_t *buflen) {
 	char tmp[50];
 	size_t len;
 
-	len = SPRINTF((tmp, "%d%c", t, s));
-	if (len + 1 > *buflen)
+	len = (size_t)snprintf(tmp, sizeof(tmp), "%d%c", t, s);
+	if ((int)len < 0 || len + 1 > *buflen)
 		return (-1);
 	strcpy(*buf, tmp);
 	*buf += len;

libc/dns/net/getaddrinfo.c

@@ -369,7 +369,7 @@ _test_connect(int pf, struct sockaddr *addr, size_t addrlen, unsigned mark) {
 		return 0;
 	int ret;
 	do {
-		ret = __connect(s, addr, addrlen);
+		ret = connect(s, addr, addrlen);
 	} while (ret < 0 && errno == EINTR);
 	int success = (ret == 0);
 	do {
@@ -1803,7 +1803,7 @@ _find_src_addr(const struct sockaddr *addr, struct sockaddr *src_addr, unsigned
 	if (mark != MARK_UNSET && setsockopt(sock, SOL_SOCKET, SO_MARK, &mark, sizeof(mark)) < 0)
 		return 0;
 	do {
-		ret = __connect(sock, addr, len);
+		ret = connect(sock, addr, len);
 	} while (ret == -1 && errno == EINTR);
 
 	if (ret == -1) {
@@ -2017,7 +2017,7 @@ _sethtent(FILE **hostf)
 {
 
 	if (!*hostf)
-		*hostf = fopen(_PATH_HOSTS, "r" );
+		*hostf = fopen(_PATH_HOSTS, "re");
 	else
 		rewind(*hostf);
 }
@@ -2046,7 +2046,7 @@ _gethtent(FILE **hostf, const char *name, const struct addrinfo *pai)
 	assert(name != NULL);
 	assert(pai != NULL);
 
-	if (!*hostf && !(*hostf = fopen(_PATH_HOSTS, "r" )))
+	if (!*hostf && !(*hostf = fopen(_PATH_HOSTS, "re")))
 		return (NULL);
  again:
 	if (!(p = fgets(hostbuf, sizeof hostbuf, *hostf)))

libc/dns/net/services.h

@@ -30,8 +30,8 @@ static const char  _services[] = "\
 \6tacacs\0\61u\0\
 \12re-mail-ck\0\62t\0\
 \12re-mail-ck\0\62u\0\
-\6domain\0\65t\1\12nameserver\
-\6domain\0\65u\1\12nameserver\
+\6domain\0\65t\0\
+\6domain\0\65u\0\
 \3mtp\0\71t\0\
 \11tacacs-ds\0\101t\0\
 \11tacacs-ds\0\101u\0\
@@ -44,8 +44,8 @@ static const char  _services[] = "\
 \6gopher\0\106u\0\
 \3rje\0\115t\1\6netrjs\
 \6finger\0\117t\0\
-\3www\0\120t\1\4http\
-\3www\0\120u\0\
+\4http\0\120t\1\3www\
+\4http\0\120u\0\
 \4link\0\127t\1\7ttylink\
 \10kerberos\0\130t\3\11kerberos5\4krb5\14kerberos-sec\
 \10kerberos\0\130u\3\11kerberos5\4krb5\14kerberos-sec\
@@ -138,12 +138,16 @@ static const char  _services[] = "\
 \4ldap\1\205u\0\
 \4imsp\1\226t\0\
 \4imsp\1\226u\0\
+\6svrloc\1\253t\0\
+\6svrloc\1\253u\0\
 \5https\1\273t\0\
 \5https\1\273u\0\
 \4snpp\1\274t\0\
 \4snpp\1\274u\0\
 \14microsoft-ds\1\275t\0\
 \14microsoft-ds\1\275u\0\
+\7kpasswd\1\320t\0\
+\7kpasswd\1\320u\0\
 \4saft\1\347t\0\
 \4saft\1\347u\0\
 \6isakmp\1\364t\0\
@@ -158,6 +162,8 @@ static const char  _services[] = "\
 \10npmp-gui\2\143u\1\14dqs313_execd\
 \10hmmp-ind\2\144t\1\20dqs313_intercell\
 \10hmmp-ind\2\144u\1\20dqs313_intercell\
+\4qmqp\2\164t\0\
+\4qmqp\2\164u\0\
 \3ipp\2\167t\0\
 \3ipp\2\167u\0\
 \4exec\2\0t\0\
@@ -181,8 +187,14 @@ static const char  _services[] = "\
 \4uucp\2\34t\1\5uucpd\
 \6klogin\2\37t\0\
 \6kshell\2\40t\1\5krcmd\
+\15dhcpv6-client\2\42t\0\
+\15dhcpv6-client\2\42u\0\
+\15dhcpv6-server\2\43t\0\
+\15dhcpv6-server\2\43u\0\
 \12afpovertcp\2\44t\0\
 \12afpovertcp\2\44u\0\
+\4idfp\2\45t\0\
+\4idfp\2\45u\0\
 \10remotefs\2\54t\2\12rfs_server\3rfs\
 \5nntps\2\63t\1\5snntp\
 \5nntps\2\63u\1\5snntp\
@@ -239,19 +251,33 @@ static const char  _services[] = "\
 \13sa-msg-port\6\156u\1\13old-radacct\
 \6kermit\6\161t\0\
 \6kermit\6\161u\0\
+\11groupwise\6\215t\0\
+\11groupwise\6\215u\0\
 \3l2f\6\245t\1\4l2tp\
 \3l2f\6\245u\1\4l2tp\
 \6radius\7\24t\0\
 \6radius\7\24u\0\
 \13radius-acct\7\25t\1\7radacct\
 \13radius-acct\7\25u\1\7radacct\
+\4msnp\7\107t\0\
+\4msnp\7\107u\0\
 \13unix-status\7\245t\0\
 \12log-server\7\246t\0\
 \12remoteping\7\247t\0\
+\12cisco-sccp\7\320t\0\
+\12cisco-sccp\7\320u\0\
+\6search\7\332t\1\4ndtp\
+\13pipe-server\7\332t\1\13pipe_server\
 \3nfs\10\1t\0\
 \3nfs\10\1u\0\
+\6gnunet\10\46t\0\
+\6gnunet\10\46u\0\
 \12rtcm-sc104\10\65t\0\
 \12rtcm-sc104\10\65u\0\
+\15gsigatekeeper\10\107t\0\
+\15gsigatekeeper\10\107u\0\
+\4gris\10\127t\0\
+\4gris\10\127u\0\
 \12cvspserver\11\141t\0\
 \12cvspserver\11\141u\0\
 \5venus\11\176t\0\
@@ -266,10 +292,14 @@ static const char  _services[] = "\
 \3mon\12\27u\0\
 \4dict\12\104t\0\
 \4dict\12\104u\0\
+\15f5-globalsite\12\350t\0\
+\15f5-globalsite\12\350u\0\
+\6gsiftp\12\373t\0\
+\6gsiftp\12\373u\0\
 \4gpsd\13\203t\0\
 \4gpsd\13\203u\0\
-\6gds_db\13\352t\0\
-\6gds_db\13\352u\0\
+\6gds-db\13\352t\1\6gds_db\
+\6gds-db\13\352u\1\6gds_db\
 \5icpv2\14\72t\1\3icp\
 \5icpv2\14\72u\1\3icp\
 \5mysql\14\352t\0\
@@ -282,24 +312,49 @@ static const char  _services[] = "\
 \4daap\16\151u\0\
 \3svn\16\152t\1\12subversion\
 \3svn\16\152u\1\12subversion\
+\5suucp\17\277t\0\
+\5suucp\17\277u\0\
+\6sysrqd\17\376t\0\
+\6sysrqd\17\376u\0\
+\5sieve\20\136t\0\
+\4epmd\21\21t\0\
+\4epmd\21\21u\0\
+\6remctl\21\25t\0\
+\6remctl\21\25u\0\
+\11f5-iquery\21\1t\0\
+\11f5-iquery\21\1u\0\
 \3iax\21\331t\0\
 \3iax\21\331u\0\
+\3mtn\22\123t\0\
+\3mtn\22\123u\0\
 \13radmin-port\23\43t\0\
 \13radmin-port\23\43u\0\
 \3rfe\23\212u\0\
 \3rfe\23\212t\0\
+\4mmcc\23\272t\0\
+\4mmcc\23\272u\0\
 \3sip\23\304t\0\
 \3sip\23\304u\0\
 \7sip-tls\23\305t\0\
 \7sip-tls\23\305u\0\
+\3aol\24\106t\0\
+\3aol\24\106u\0\
 \13xmpp-client\24\146t\1\15jabber-client\
 \13xmpp-client\24\146u\1\15jabber-client\
 \13xmpp-server\24\225t\1\15jabber-server\
 \13xmpp-server\24\225u\1\15jabber-server\
 \10cfengine\24\274t\0\
 \10cfengine\24\274u\0\
+\4mdns\24\351t\0\
+\4mdns\24\351u\0\
 \12postgresql\25\70t\1\10postgres\
 \12postgresql\25\70u\1\10postgres\
+\7freeciv\25\264t\1\4rptp\
+\7freeciv\25\264u\0\
+\4amqp\26\50t\0\
+\4amqp\26\50u\0\
+\3ggz\26\70t\0\
+\3ggz\26\70u\0\
 \3x11\27\160t\1\5x11-0\
 \3x11\27\160u\1\5x11-0\
 \5x11-1\27\161t\0\
@@ -320,6 +375,12 @@ static const char  _services[] = "\
 \14gnutella-svc\30\312u\0\
 \14gnutella-rtr\30\313t\0\
 \14gnutella-rtr\30\313u\0\
+\13sge-qmaster\31\54t\1\13sge_qmaster\
+\13sge-qmaster\31\54u\1\13sge_qmaster\
+\11sge-execd\31\55t\1\11sge_execd\
+\11sge-execd\31\55u\1\11sge_execd\
+\13mysql-proxy\31\56t\0\
+\13mysql-proxy\31\56u\0\
 \17afs3-fileserver\33\130t\1\3bbs\
 \17afs3-fileserver\33\130u\1\3bbs\
 \15afs3-callback\33\131t\0\
@@ -342,12 +403,21 @@ static const char  _services[] = "\
 \13afs3-rmtsys\33\141u\0\
 \14font-service\33\274t\1\3xfs\
 \14font-service\33\274u\1\3xfs\
+\10http-alt\37\220t\1\10webcache\
+\10http-alt\37\220u\0\
 \12bacula-dir\43\215t\0\
 \12bacula-dir\43\215u\0\
 \11bacula-fd\43\216t\0\
 \11bacula-fd\43\216u\0\
 \11bacula-sd\43\217t\0\
 \11bacula-sd\43\217u\0\
+\5xmms2\45\303t\0\
+\5xmms2\45\303u\0\
+\3nbd\52\71t\0\
+\14zabbix-agent\47\102t\0\
+\14zabbix-agent\47\102u\0\
+\16zabbix-trapper\47\103t\0\
+\16zabbix-trapper\47\103u\0\
 \6amanda\47\140t\0\
 \6amanda\47\140u\0\
 \3hkp\54\153t\0\
@@ -364,16 +434,17 @@ static const char  _services[] = "\
 \4bpcd\65\326u\0\
 \6vopied\65\327t\0\
 \6vopied\65\327u\0\
+\4dcap\126\155t\0\
+\7gsidcap\126\160t\0\
 \4wnn6\127\1t\0\
 \4wnn6\127\1u\0\
 \11kerberos4\2\356u\2\13kerberos-iv\3kdc\
 \11kerberos4\2\356t\2\13kerberos-iv\3kdc\
-\17kerberos_master\2\357u\0\
-\17kerberos_master\2\357t\0\
-\15passwd_server\2\360u\0\
-\10krb_prop\2\362t\2\11krb5_prop\5hprop\
+\17kerberos-master\2\357u\1\17kerberos_master\
+\17kerberos-master\2\357t\0\
+\15passwd-server\2\360u\1\15passwd_server\
+\10krb-prop\2\362t\3\10krb_prop\11krb5_prop\5hprop\
 \11krbupdate\2\370t\1\4kreg\
-\7kpasswd\2\371t\1\4kpwd\
 \4swat\3\205t\0\
 \4kpop\4\125t\0\
 \5knetd\10\5t\0\
@@ -389,9 +460,9 @@ static const char  _services[] = "\
 \10poppassd\0\152t\0\
 \10poppassd\0\152u\0\
 \5ssmtp\1\321t\1\5smtps\
-\10moira_db\3\7t\0\
-\14moira_update\3\11t\0\
-\12moira_ureg\3\13u\0\
+\10moira-db\3\7t\1\10moira_db\
+\14moira-update\3\11t\1\14moira_update\
+\12moira-ureg\3\13u\1\12moira_ureg\
 \5spamd\3\17t\0\
 \5omirr\3\50t\1\6omirrd\
 \5omirr\3\50u\1\6omirrd\
@@ -404,9 +475,7 @@ static const char  _services[] = "\
 \4xtel\5\41t\0\
 \5xtelw\5\42t\0\
 \7support\5\371t\0\
-\5sieve\7\320t\0\
 \7cfinger\7\323t\0\
-\4ndtp\7\332t\0\
 \4frox\10\111t\0\
 \10ninstall\10\146t\0\
 \10ninstall\10\146u\0\
@@ -436,9 +505,7 @@ static const char  _services[] = "\
 \7hostmon\24\353t\0\
 \7hostmon\24\353u\0\
 \5rplay\25\263u\0\
-\5rplay\25\263t\0\
-\4rptp\25\264u\0\
-\4rptp\25\264t\0\
+\4nrpe\26\42t\0\
 \4nsca\26\43t\0\
 \4mrtd\26\52t\0\
 \6bgpsim\26\53t\0\
@@ -446,14 +513,15 @@ static const char  _services[] = "\
 \11sane-port\31\246t\2\4sane\5saned\
 \4ircd\32\13t\0\
 \10zope-ftp\37\125t\0\
-\10webcache\37\220t\0\
 \6tproxy\37\221t\0\
 \7omniorb\37\230t\0\
 \7omniorb\37\230u\0\
 \20clc-build-daemon\43\36t\0\
 \6xinetd\43\212t\0\
 \13mandelspawn\44\217u\1\12mandelbrot\
+\3git\44\312t\0\
 \4zope\45\311t\0\
+\6webmin\47\20t\0\
 \7kamanda\47\141t\0\
 \7kamanda\47\141u\0\
 \11amandaidx\47\142t\0\
@@ -473,6 +541,7 @@ static const char  _services[] = "\
 \5binkp\137\352t\0\
 \3asp\152\356t\0\
 \3asp\152\356u\0\
+\6csync2\170\221t\0\
 \11dircproxy\336\250t\0\
 \5tfido\353\21t\0\
 \4fido\353\23t\0\

libc/dns/resolv/res_cache.c

@@ -1218,6 +1218,7 @@ typedef struct resolv_cache {
     int              max_entries;
     int              num_entries;
     Entry            mru_list;
+    pthread_mutex_t  lock;
     int              last_id;
     Entry*           entries;
     PendingReqInfo   pending_requests;
@@ -1235,15 +1236,6 @@ struct resolv_cache_info {
 
 #define  HTABLE_VALID(x)  ((x) != NULL && (x) != HTABLE_DELETED)
 
-static pthread_once_t        _res_cache_once = PTHREAD_ONCE_INIT;
-static void _res_cache_init(void);
-
-// lock protecting everything in the _resolve_cache_info structs (next ptr, etc)
-static pthread_mutex_t _res_cache_list_lock;
-
-/* gets cache associated with a network, or NULL if none exists */
-static struct resolv_cache* _find_named_cache_locked(unsigned netid);
-
 static void
 _cache_flush_pending_requests_locked( struct resolv_cache* cache )
 {
@@ -1264,18 +1256,18 @@ _cache_flush_pending_requests_locked( struct resolv_cache* cache )
     }
 }
 
-/* Return 0 if no pending request is found matching the key.
- * If a matching request is found the calling thread will wait until
- * the matching request completes, then update *cache and return 1. */
+/* return 0 if no pending request is found matching the key
+ * if a matching request is found the calling thread will wait
+ * and return 1 when released */
 static int
-_cache_check_pending_request_locked( struct resolv_cache** cache, Entry* key, unsigned netid )
+_cache_check_pending_request_locked( struct resolv_cache* cache, Entry* key )
 {
     struct pending_req_info *ri, *prev;
     int exist = 0;
 
-    if (*cache && key) {
-        ri = (*cache)->pending_requests.next;
-        prev = &(*cache)->pending_requests;
+    if (cache && key) {
+        ri = cache->pending_requests.next;
+        prev = &cache->pending_requests;
         while (ri) {
             if (ri->hash == key->hash) {
                 exist = 1;
@@ -1296,9 +1288,7 @@ _cache_check_pending_request_locked( struct resolv_cache** cache, Entry* key, un
             struct timespec ts = {0,0};
             XLOG("Waiting for previous request");
             ts.tv_sec = _time_now() + PENDING_REQUEST_TIMEOUT;
-            pthread_cond_timedwait(&ri->cond, &_res_cache_list_lock, &ts);
-            /* Must update *cache as it could have been deleted. */
-            *cache = _find_named_cache_locked(netid);
+            pthread_cond_timedwait(&ri->cond, &cache->lock, &ts);
         }
     }
 
@@ -1335,25 +1325,17 @@ _cache_notify_waiting_tid_locked( struct resolv_cache* cache, Entry* key )
 
 /* notify the cache that the query failed */
 void
-_resolv_cache_query_failed( unsigned    netid,
+_resolv_cache_query_failed( struct resolv_cache* cache,
                    const void* query,
                    int         querylen)
 {
     Entry    key[1];
-    Cache*   cache;
 
-    if (!entry_init_key(key, query, querylen))
-        return;
-
-    pthread_mutex_lock(&_res_cache_list_lock);
-
-    cache = _find_named_cache_locked(netid);
-
-    if (cache) {
+    if (cache && entry_init_key(key, query, querylen)) {
+        pthread_mutex_lock(&cache->lock);
         _cache_notify_waiting_tid_locked(cache, key);
+        pthread_mutex_unlock(&cache->lock);
     }
-
-    pthread_mutex_unlock(&_res_cache_list_lock);
 }
 
 static void
@@ -1409,6 +1391,7 @@ _resolv_cache_create( void )
         cache->max_entries = _res_cache_get_max_entries();
         cache->entries = calloc(sizeof(*cache->entries), cache->max_entries);
         if (cache->entries) {
+            pthread_mutex_init( &cache->lock, NULL );
             cache->mru_list.mru_prev = cache->mru_list.mru_next = &cache->mru_list;
             XLOG("%s: cache created\n", __FUNCTION__);
         } else {
@@ -1453,7 +1436,7 @@ _dump_answer(const void* answer, int answerlen)
     char* buf;
     int fileLen;
 
-    fp = fopen("/data/reslog.txt", "w+");
+    fp = fopen("/data/reslog.txt", "w+e");
     if (fp != NULL) {
         statep = __res_get_state();
 
@@ -1603,7 +1586,7 @@ static void _cache_remove_expired(Cache* cache) {
 }
 
 ResolvCacheStatus
-_resolv_cache_lookup( unsigned              netid,
+_resolv_cache_lookup( struct resolv_cache*  cache,
                       const void*           query,
                       int                   querylen,
                       void*                 answer,
@@ -1614,7 +1597,6 @@ _resolv_cache_lookup( unsigned              netid,
     Entry**    lookup;
     Entry*     e;
     time_t     now;
-    Cache*     cache;
 
     ResolvCacheStatus  result = RESOLV_CACHE_NOTFOUND;
 
@@ -1627,14 +1609,7 @@ _resolv_cache_lookup( unsigned              netid,
         return RESOLV_CACHE_UNSUPPORTED;
     }
     /* lookup cache */
-    pthread_once(&_res_cache_once, _res_cache_init);
-    pthread_mutex_lock(&_res_cache_list_lock);
-
-    cache = _find_named_cache_locked(netid);
-    if (cache == NULL) {
-        result = RESOLV_CACHE_UNSUPPORTED;
-        goto Exit;
-    }
+    pthread_mutex_lock( &cache->lock );
 
     /* see the description of _lookup_p to understand this.
      * the function always return a non-NULL pointer.
@@ -1646,7 +1621,7 @@ _resolv_cache_lookup( unsigned              netid,
         XLOG( "NOT IN CACHE");
         // calling thread will wait if an outstanding request is found
         // that matching this query
-        if (!_cache_check_pending_request_locked(&cache, key, netid) || cache == NULL) {
+        if (!_cache_check_pending_request_locked(cache, key)) {
             goto Exit;
         } else {
             lookup = _cache_lookup_p(cache, key);
@@ -1687,13 +1662,13 @@ _resolv_cache_lookup( unsigned              netid,
     result = RESOLV_CACHE_FOUND;
 
 Exit:
-    pthread_mutex_unlock(&_res_cache_list_lock);
+    pthread_mutex_unlock( &cache->lock );
     return result;
 }
 
 
 void
-_resolv_cache_add( unsigned              netid,
+_resolv_cache_add( struct resolv_cache*  cache,
                    const void*           query,
                    int                   querylen,
                    const void*           answer,
@@ -1703,7 +1678,6 @@ _resolv_cache_add( unsigned              netid,
     Entry*   e;
     Entry**  lookup;
     u_long   ttl;
-    Cache*   cache = NULL;
 
     /* don't assume that the query has already been cached
      */
@@ -1712,12 +1686,7 @@ _resolv_cache_add( unsigned              netid,
         return;
     }
 
-    pthread_mutex_lock(&_res_cache_list_lock);
-
-    cache = _find_named_cache_locked(netid);
-    if (cache == NULL) {
-        goto Exit;
-    }
+    pthread_mutex_lock( &cache->lock );
 
     XLOG( "%s: query:", __FUNCTION__ );
     XLOG_QUERY(query,querylen);
@@ -1763,10 +1732,8 @@ _resolv_cache_add( unsigned              netid,
     _cache_dump_mru(cache);
 #endif
 Exit:
-    if (cache != NULL) {
-      _cache_notify_waiting_tid_locked(cache, key);
-    }
-    pthread_mutex_unlock(&_res_cache_list_lock);
+    _cache_notify_waiting_tid_locked(cache, key);
+    pthread_mutex_unlock( &cache->lock );
 }
 
 /****************************************************************************/
@@ -1777,13 +1744,20 @@ Exit:
 /****************************************************************************/
 /****************************************************************************/
 
+static pthread_once_t        _res_cache_once = PTHREAD_ONCE_INIT;
+
 // Head of the list of caches.  Protected by _res_cache_list_lock.
 static struct resolv_cache_info _res_cache_list;
 
+// lock protecting everything in the _resolve_cache_info structs (next ptr, etc)
+static pthread_mutex_t _res_cache_list_lock;
+
 /* insert resolv_cache_info into the list of resolv_cache_infos */
 static void _insert_cache_info_locked(struct resolv_cache_info* cache_info);
 /* creates a resolv_cache_info */
 static struct resolv_cache_info* _create_cache_info( void );
+/* gets cache associated with a network, or NULL if none exists */
+static struct resolv_cache* _find_named_cache_locked(unsigned netid);
 /* gets a resolv_cache_info associated with a network, or NULL if not found */
 static struct resolv_cache_info* _find_cache_info_locked(unsigned netid);
 /* look up the named cache, and creates one if needed */
@@ -1811,6 +1785,22 @@ _res_cache_init(void)
     pthread_mutex_init(&_res_cache_list_lock, NULL);
 }
 
+struct resolv_cache*
+__get_res_cache(unsigned netid)
+{
+    struct resolv_cache *cache;
+
+    pthread_once(&_res_cache_once, _res_cache_init);
+    pthread_mutex_lock(&_res_cache_list_lock);
+
+    /* Does NOT create a cache if it does not exist. */
+    cache = _find_named_cache_locked(netid);
+
+    pthread_mutex_unlock(&_res_cache_list_lock);
+    XLOG("%s: netid=%u, cache=%p\n", __FUNCTION__, netid, cache);
+    return cache;
+}
+
 static struct resolv_cache*
 _get_res_cache_for_net_locked(unsigned netid)
 {
@@ -1847,36 +1837,12 @@ _flush_cache_for_net_locked(unsigned netid)
 {
     struct resolv_cache* cache = _find_named_cache_locked(netid);
     if (cache) {
+        pthread_mutex_lock(&cache->lock);
         _cache_flush_locked(cache);
+        pthread_mutex_unlock(&cache->lock);
     }
 }
 
-void _resolv_delete_cache_for_net(unsigned netid)
-{
-    pthread_once(&_res_cache_once, _res_cache_init);
-    pthread_mutex_lock(&_res_cache_list_lock);
-
-    struct resolv_cache_info* prev_cache_info = &_res_cache_list;
-
-    while (prev_cache_info->next) {
-        struct resolv_cache_info* cache_info = prev_cache_info->next;
-
-        if (cache_info->netid == netid) {
-            prev_cache_info->next = cache_info->next;
-            _cache_flush_locked(cache_info->cache);
-            free(cache_info->cache->entries);
-            free(cache_info->cache);
-            _free_nameservers_locked(cache_info);
-            free(cache_info);
-            break;
-        }
-
-        prev_cache_info = prev_cache_info->next;
-    }
-
-    pthread_mutex_unlock(&_res_cache_list_lock);
-}
-
 static struct resolv_cache_info*
 _create_cache_info(void)
 {
@@ -1949,7 +1915,7 @@ _resolv_set_nameservers_for_net(unsigned netid, const char** servers, int numser
         hints.ai_family = PF_UNSPEC;
         hints.ai_socktype = SOCK_DGRAM; /*dummy*/
         hints.ai_flags = AI_NUMERICHOST;
-        sprintf(sbuf, "%u", NAMESERVER_PORT);
+        snprintf(sbuf, sizeof(sbuf), "%u", NAMESERVER_PORT);
 
         index = 0;
         for (i = 0; i < numservers && i < MAXNS; i++) {

libc/dns/resolv/res_debug.c

@@ -126,14 +126,6 @@ __RCSID("$NetBSD: res_debug.c,v 1.13 2012/06/25 22:32:45 abs Exp $");
 #include <strings.h>
 #include <time.h>
 
-
-
-#ifdef SPRINTF_CHAR
-# define SPRINTF(x) strlen(sprintf/**/x)
-#else
-# define SPRINTF(x) sprintf x
-#endif
-
 extern const char * const _res_opcodes[];
 extern const char * const _res_sectioncodes[];
 
@@ -588,7 +580,7 @@ sym_ntos(const struct res_sym *syms, int number, int *success) {
 		}
 	}
 
-	sprintf(unname, "%d", number);		/* XXX nonreentrant */
+	snprintf(unname, sizeof(unname), "%d", number);		/* XXX nonreentrant */
 	if (success)
 		*success = 0;
 	return (unname);
@@ -605,7 +597,7 @@ sym_ntop(const struct res_sym *syms, int number, int *success) {
 			return (syms->humanname);
 		}
 	}
-	sprintf(unname, "%d", number);		/* XXX nonreentrant */
+	snprintf(unname, sizeof(unname), "%d", number);		/* XXX nonreentrant */
 	if (success)
 		*success = 0;
 	return (unname);
@@ -625,7 +617,7 @@ p_type(int type) {
 		return (result);
 	if (type < 0 || type > 0xffff)
 		return ("BADTYPE");
-	sprintf(typebuf, "TYPE%d", type);
+	snprintf(typebuf, sizeof(typebuf), "TYPE%d", type);
 	return (typebuf);
 }
 
@@ -661,7 +653,7 @@ p_class(int class) {
 		return (result);
 	if (class < 0 || class > 0xffff)
 		return ("BADCLASS");
-	sprintf(classbuf, "CLASS%d", class);
+	snprintf(classbuf, sizeof(classbuf), "CLASS%d", class);
 	return (classbuf);
 }
 
@@ -703,7 +695,7 @@ p_option(u_long option) {
 	case RES_NO_NIBBLE2:	return "no-nibble2";
 #endif
 				/* XXX nonreentrant */
-	default:		sprintf(nbuf, "?0x%lx?", (u_long)option);
+	default:		snprintf(nbuf, sizeof(nbuf), "?0x%lx?", (u_long)option);
 				return (nbuf);
 	}
 }
@@ -716,7 +708,7 @@ p_time(u_int32_t value) {
 	static char nbuf[40];		/* XXX nonreentrant */
 
 	if (ns_format_ttl((u_long)value, nbuf, sizeof nbuf) < 0)
-		sprintf(nbuf, "%u", value);
+		snprintf(nbuf, sizeof(nbuf), "%u", value);
 	return (nbuf);
 }
 
@@ -745,7 +737,7 @@ p_sockun(union res_sockaddr_union u, char *buf, size_t size) {
 		break;
 #endif
 	default:
-		sprintf(ret, "[af%d]", u.sin.sin_family);
+		snprintf(ret, sizeof(ret), "[af%d]", u.sin.sin_family);
 		break;
 	}
 	if (size > 0U) {
@@ -777,7 +769,7 @@ precsize_ntoa(u_int32_t prec)
 
 	val = mantissa * poweroften[exponent];
 
-	(void) sprintf(retbuf, "%lu.%.2lu", val/100, val%100);
+	(void) snprintf(retbuf, sizeof(retbuf), "%lu.%.2lu", val/100, val%100);
 	return (retbuf);
 }
 
@@ -1028,7 +1020,7 @@ loc_aton(const char *ascii, u_char *binary)
 
 /* takes an on-the-wire LOC RR and formats it in a human readable format. */
 const char *
-loc_ntoa(const u_char *binary, char *ascii)
+loc_ntoa(const u_char *binary, char *ascii, size_t bufsiz)
 {
 	static const char *error = "?";
 	static char tmpbuf[sizeof
@@ -1055,7 +1047,7 @@ loc_ntoa(const u_char *binary, char *ascii)
 		ascii = tmpbuf;
 
 	if (versionval) {
-		(void) sprintf(ascii, "; error: unknown LOC RR version");
+		(void) snprintf(ascii, bufsiz, "; error: unknown LOC RR version");
 		return (ascii);
 	}
 
@@ -1114,7 +1106,7 @@ loc_ntoa(const u_char *binary, char *ascii)
 	hpstr = strdup(precsize_ntoa((u_int32_t)hpval));
 	vpstr = strdup(precsize_ntoa((u_int32_t)vpval));
 
-	sprintf(ascii,
+	snprintf(ascii, bufsiz,
 	    "%d %.2d %.2d.%.3d %c %d %.2d %.2d.%.3d %c %s%d.%.2dm %sm %sm %sm",
 		latdeg, latmin, latsec, latsecfrac, northsouth,
 		longdeg, longmin, longsec, longsecfrac, eastwest,
@@ -1180,7 +1172,7 @@ p_secstodate (u_long secs) {
 #endif
 	mytime->tm_year += 1900;
 	mytime->tm_mon += 1;
-	sprintf(output, "%04d%02d%02d%02d%02d%02d",
+	snprintf(output, sizeof(output), "%04d%02d%02d%02d%02d%02d",
 		mytime->tm_year, mytime->tm_mon, mytime->tm_mday,
 		mytime->tm_hour, mytime->tm_min, mytime->tm_sec);
 	return (output);

libc/dns/resolv/res_init.c

@@ -289,7 +289,7 @@ __res_vinit(res_state statp, int preinit) {
 	 line[sizeof(name) - 1] == '\t'))
 
 	nserv = 0;
-	if ((fp = fopen(_PATH_RESCONF, "r")) != NULL) {
+	if ((fp = fopen(_PATH_RESCONF, "re")) != NULL) {
 	    /* read the config file */
 	    while (fgets(buf, sizeof(buf), fp) != NULL) {
 		/* skip comments */
@@ -616,47 +616,6 @@ net_mask(struct in_addr in)	/*!< XXX - should really use system's version of thi
 }
 #endif
 
-#ifdef ANDROID_CHANGES
-static int
-real_randomid(u_int *random_value) {
-	/* open the nonblocking random device, returning -1 on failure */
-	int random_device = open("/dev/urandom", O_RDONLY | O_CLOEXEC);
-	if (random_device < 0) {
-		return -1;
-	}
-
-	/* read from the random device, returning -1 on failure (or too many retries)*/
-	for (u_int retry = 5; retry > 0; retry--) {
-		int retval = read(random_device, random_value, sizeof(u_int));
-		if (retval == sizeof(u_int)) {
-			*random_value &= 0xffff;
-			close(random_device);
-			return 0;
-		} else if ((retval < 0) && (errno != EINTR)) {
-			break;
-		}
-	}
-
-	close(random_device);
-	return -1;
-}
-#endif /* ANDROID_CHANGES */
-
-u_int
-res_randomid(void) {
-#ifdef ANDROID_CHANGES
-	int status = 0;
-	u_int output = 0;
-	status = real_randomid(&output);
-	if (status != -1) {
-		return output;
-	}
-#endif /* ANDROID_CHANGES */
-	struct timeval now;
-	gettimeofday(&now, NULL);
-	return (0xffff & (now.tv_sec ^ now.tv_usec ^ getpid()));
-}
-
 /*%
  * This routine is for closing the socket if a virtual circuit is used and
  * the program wants to close it.  This provides support for endhostent()

libc/dns/resolv/res_query.c

@@ -414,7 +414,7 @@ res_nquerydomain(res_state statp,
 			RES_SET_H_ERRNO(statp, NO_RECOVERY);
 			return (-1);
 		}
-		sprintf(nbuf, "%s.%s", name, domain);
+		snprintf(nbuf, sizeof(nbuf), "%s.%s", name, domain);
 	}
 	return (res_nquery(statp, longname, class, type, answer, anslen));
 }

libc/dns/resolv/res_send.c

@@ -367,6 +367,7 @@ res_nsend(res_state statp,
 	int gotsomewhere, terrno, try, v_circuit, resplen, ns, n;
 	char abuf[NI_MAXHOST];
 #if USE_RESOLV_CACHE
+        struct resolv_cache*  cache;
         ResolvCacheStatus     cache_status = RESOLV_CACHE_UNSUPPORTED;
 #endif
 
@@ -388,24 +389,24 @@ res_nsend(res_state statp,
 	terrno = ETIMEDOUT;
 
 #if USE_RESOLV_CACHE
-	int  anslen = 0;
-	cache_status = _resolv_cache_lookup(
-			statp->netid, buf, buflen,
-			ans, anssiz, &anslen);
+	// get the cache associated with the network
+	cache = __get_res_cache(statp->netid);
+	if (cache != NULL) {
+		int  anslen = 0;
+		cache_status = _resolv_cache_lookup(
+				cache, buf, buflen,
+				ans, anssiz, &anslen);
 
-	if (cache_status == RESOLV_CACHE_FOUND) {
-		return anslen;
-	} else if (cache_status != RESOLV_CACHE_UNSUPPORTED) {
-		// had a cache miss for a known network, so populate the thread private
-		// data so the normal resolve path can do its thing
-		_resolv_populate_res_for_net(statp);
+		if (cache_status == RESOLV_CACHE_FOUND) {
+			return anslen;
+		} else {
+			// had a cache miss for a known network, so populate the thread private
+			// data so the normal resolve path can do its thing
+			_resolv_populate_res_for_net(statp);
+		}
 	}
 
 	if (statp->nscount == 0) {
-		// We have no nameservers configured, so there's no point trying.
-		// Tell the cache the query failed, or any retries and anyone else asking the same
-		// question will block for PENDING_REQUEST_TIMEOUT seconds instead of failing fast.
-		_resolv_cache_query_failed(statp->netid, buf, buflen);
 		errno = ESRCH;
 		return (-1);
 	}
@@ -601,7 +602,7 @@ res_nsend(res_state statp,
 
 #if USE_RESOLV_CACHE
                 if (cache_status == RESOLV_CACHE_NOTFOUND) {
-                    _resolv_cache_add(statp->netid, buf, buflen,
+                    _resolv_cache_add(cache, buf, buflen,
                                       ans, resplen);
                 }
 #endif
@@ -657,13 +658,13 @@ res_nsend(res_state statp,
 		errno = terrno;
 
 #if USE_RESOLV_CACHE
-        _resolv_cache_query_failed(statp->netid, buf, buflen);
+        _resolv_cache_query_failed(cache, buf, buflen);
 #endif
 
 	return (-1);
  fail:
 #if USE_RESOLV_CACHE
-	_resolv_cache_query_failed(statp->netid, buf, buflen);
+	_resolv_cache_query_failed(cache, buf, buflen);
 #endif
 	res_nclose(statp);
 	return (-1);
@@ -950,7 +951,7 @@ connect_with_timeout(int sock, const struct sockaddr *nsap, socklen_t salen, int
 	origflags = fcntl(sock, F_GETFL, 0);
 	fcntl(sock, F_SETFL, origflags | O_NONBLOCK);
 
-	res = __connect(sock, nsap, salen);
+	res = connect(sock, nsap, salen);
 	if (res < 0 && errno != EINPROGRESS) {
                 res = -1;
                 goto done;
@@ -1107,7 +1108,7 @@ send_dg(res_state statp,
 			res_nclose(statp);
 			return (0);
 		}
-		if (__connect(EXT(statp).nssocks[ns], nsap, (socklen_t)nsaplen) < 0) {
+		if (connect(EXT(statp).nssocks[ns], nsap, (socklen_t)nsaplen) < 0) {
 			Aerror(statp, stderr, "connect(dg)", errno, nsap,
 			    nsaplen);
 			res_nclose(statp);

libc/include/android/dlext.h

@@ -54,11 +54,11 @@ enum {
    */
   ANDROID_DLEXT_USE_LIBRARY_FD        = 0x10,
 
-  /* If opening a library using library_fd read it starting at library_fd_offset.
+  /* When opening library using library_fd read it starting with library_offset
    * This flag is only valid when ANDROID_DLEXT_USE_LIBRARY_FD is set.
    */
 
-  ANDROID_DLEXT_USE_LIBRARY_FD_OFFSET    = 0x20,
+  ANDROID_DLEXT_USE_LIBRARY_OFFSET    = 0x20,
 
   /* Mask of valid bits */
   ANDROID_DLEXT_VALID_FLAG_BITS       = ANDROID_DLEXT_RESERVED_ADDRESS |
@@ -66,7 +66,7 @@ enum {
                                         ANDROID_DLEXT_WRITE_RELRO |
                                         ANDROID_DLEXT_USE_RELRO |
                                         ANDROID_DLEXT_USE_LIBRARY_FD |
-                                        ANDROID_DLEXT_USE_LIBRARY_FD_OFFSET,
+                                        ANDROID_DLEXT_USE_LIBRARY_OFFSET,
 };
 
 typedef struct {
@@ -75,7 +75,7 @@ typedef struct {
   size_t  reserved_size;
   int     relro_fd;
   int     library_fd;
-  off64_t library_fd_offset;
+  off64_t library_offset;
 } android_dlextinfo;
 
 extern void* android_dlopen_ext(const char* filename, int flag, const android_dlextinfo* extinfo);

libc/include/arpa/nameser.h

@@ -518,8 +518,9 @@ typedef enum __ns_cert_types {
 	(cp) += NS_INT32SZ; \
 } while (/*CONSTCOND*/0)
 
-#if !defined(__LP64__)
-/* Annoyingly, LP32 shipped with __ names. */
+/*
+ * ANSI C identifier hiding for bind's lib/nameser.
+ */
 #define	ns_msg_getflag		__ns_msg_getflag
 #define ns_get16		__ns_get16
 #define ns_get32		__ns_get32
@@ -563,73 +564,101 @@ typedef enum __ns_cert_types {
 #define	ns_subdomain		__ns_subdomain
 #define	ns_makecanon		__ns_makecanon
 #define	ns_samename		__ns_samename
-#endif
+#define	ns_newmsg_init		__ns_newmsg_init
+#define	ns_newmsg_copy		__ns_newmsg_copy
+#define	ns_newmsg_id		__ns_newmsg_id
+#define	ns_newmsg_flag		__ns_newmsg_flag
+#define	ns_newmsg_q		__ns_newmsg_q
+#define	ns_newmsg_rr		__ns_newmsg_rr
+#define	ns_newmsg_done		__ns_newmsg_done
+#define	ns_rdata_unpack		__ns_rdata_unpack
+#define	ns_rdata_equal		__ns_rdata_equal
+#define	ns_rdata_refers		__ns_rdata_refers
 
 __BEGIN_DECLS
-int		ns_msg_getflag(ns_msg, int) __LIBC_ABI_PUBLIC__;
-uint16_t	ns_get16(const u_char *) __LIBC_ABI_PUBLIC__;
-uint32_t	ns_get32(const u_char *) __LIBC_ABI_PUBLIC__;
-void		ns_put16(uint16_t, u_char *) __LIBC_ABI_PUBLIC__;
-void		ns_put32(uint32_t, u_char *) __LIBC_ABI_PUBLIC__;
-int		ns_initparse(const u_char *, int, ns_msg *) __LIBC_ABI_PUBLIC__;
-int		ns_skiprr(const u_char *, const u_char *, ns_sect, int) __LIBC_ABI_PUBLIC__;
-int		ns_parserr(ns_msg *, ns_sect, int, ns_rr *) __LIBC_ABI_PUBLIC__;
-int		ns_parserr2(ns_msg *, ns_sect, int, ns_rr2 *) __LIBC_HIDDEN__;
+int		ns_msg_getflag(ns_msg, int);
+uint16_t	ns_get16(const u_char *);
+uint32_t	ns_get32(const u_char *);
+void		ns_put16(uint16_t, u_char *);
+void		ns_put32(uint32_t, u_char *);
+int		ns_initparse(const u_char *, int, ns_msg *);
+int		ns_skiprr(const u_char *, const u_char *, ns_sect, int);
+int		ns_parserr(ns_msg *, ns_sect, int, ns_rr *);
+int		ns_parserr2(ns_msg *, ns_sect, int, ns_rr2 *);
 int		ns_sprintrr(const ns_msg *, const ns_rr *,
-				 const char *, const char *, char *, size_t) __LIBC_ABI_PUBLIC__;
+				 const char *, const char *, char *, size_t);
 int		ns_sprintrrf(const u_char *, size_t, const char *,
 				  ns_class, ns_type, u_long, const u_char *,
 				  size_t, const char *, const char *,
-				  char *, size_t) __LIBC_ABI_PUBLIC__;
-int		ns_format_ttl(u_long, char *, size_t) __LIBC_ABI_PUBLIC__;
-int		ns_parse_ttl(const char *, u_long *) __LIBC_ABI_PUBLIC__;
-uint32_t	ns_datetosecs(const char *cp, int *errp) __LIBC_ABI_PUBLIC__;
-int		ns_name_ntol(const u_char *, u_char *, size_t) __LIBC_ABI_PUBLIC__;
-int		ns_name_ntop(const u_char *, char *, size_t) __LIBC_ABI_PUBLIC__;
-int		ns_name_pton(const char *, u_char *, size_t) __LIBC_ABI_PUBLIC__;
-int		ns_name_pton2(const char *, u_char *, size_t, size_t *) __LIBC_HIDDEN__;
+				  char *, size_t);
+int		ns_format_ttl(u_long, char *, size_t);
+int		ns_parse_ttl(const char *, u_long *);
+uint32_t	ns_datetosecs(const char *cp, int *errp);
+int		ns_name_ntol(const u_char *, u_char *, size_t);
+int		ns_name_ntop(const u_char *, char *, size_t);
+int		ns_name_pton(const char *, u_char *, size_t);
+int		ns_name_pton2(const char *, u_char *, size_t, size_t *);
 int		ns_name_unpack(const u_char *, const u_char *,
-				    const u_char *, u_char *, size_t) __LIBC_ABI_PUBLIC__;
+				    const u_char *, u_char *, size_t);
 int		ns_name_unpack2(const u_char *, const u_char *,
 				     const u_char *, u_char *, size_t,
-				     size_t *) __LIBC_HIDDEN__;
+				     size_t *);
 int		ns_name_pack(const u_char *, u_char *, int,
-				  const u_char **, const u_char **) __LIBC_ABI_PUBLIC__;
+				  const u_char **, const u_char **);
 int		ns_name_uncompress(const u_char *, const u_char *,
-					const u_char *, char *, size_t) __LIBC_ABI_PUBLIC__;
+					const u_char *, char *, size_t);
 int		ns_name_compress(const char *, u_char *, size_t,
-				      const u_char **, const u_char **) __LIBC_ABI_PUBLIC__;
-int		ns_name_skip(const u_char **, const u_char *) __LIBC_ABI_PUBLIC__;
+				      const u_char **, const u_char **);
+int		ns_name_skip(const u_char **, const u_char *);
 void		ns_name_rollback(const u_char *, const u_char **,
-				      const u_char **) __LIBC_ABI_PUBLIC__;
+				      const u_char **);
 int		ns_sign(u_char *, int *, int, int, void *,
-			     const u_char *, int, u_char *, int *, time_t) __LIBC_ABI_PUBLIC__;
+			     const u_char *, int, u_char *, int *, time_t);
 int		ns_sign2(u_char *, int *, int, int, void *,
 			      const u_char *, int, u_char *, int *, time_t,
-			      u_char **, u_char **) __LIBC_ABI_PUBLIC__;
-ssize_t		ns_name_length(ns_nname_ct, size_t) __LIBC_HIDDEN__;
-int		ns_name_eq(ns_nname_ct, size_t, ns_nname_ct, size_t) __LIBC_HIDDEN__;
-int		ns_name_owned(ns_namemap_ct, int, ns_namemap_ct, int) __LIBC_HIDDEN__;
-int		ns_name_map(ns_nname_ct, size_t, ns_namemap_t, int) __LIBC_HIDDEN__;
-int		ns_name_labels(ns_nname_ct, size_t) __LIBC_HIDDEN__;
+			      u_char **, u_char **);
+ssize_t		ns_name_length(ns_nname_ct, size_t);
+int		ns_name_eq(ns_nname_ct, size_t, ns_nname_ct, size_t);
+int		ns_name_owned(ns_namemap_ct, int, ns_namemap_ct, int);
+int		ns_name_map(ns_nname_ct, size_t, ns_namemap_t, int);
+int		ns_name_labels(ns_nname_ct, size_t);
 int		ns_sign_tcp(u_char *, int *, int, int,
-				 ns_tcp_tsig_state *, int) __LIBC_ABI_PUBLIC__;
+				 ns_tcp_tsig_state *, int);
 int		ns_sign_tcp2(u_char *, int *, int, int,
 				  ns_tcp_tsig_state *, int,
-				  u_char **, u_char **) __LIBC_ABI_PUBLIC__;
+				  u_char **, u_char **);
 int		ns_sign_tcp_init(void *, const u_char *, int,
-					ns_tcp_tsig_state *) __LIBC_ABI_PUBLIC__;
-u_char		*ns_find_tsig(u_char *, u_char *) __LIBC_ABI_PUBLIC__;
+					ns_tcp_tsig_state *);
+u_char		*ns_find_tsig(u_char *, u_char *);
 int		ns_verify(u_char *, int *, void *,
 			       const u_char *, int, u_char *, int *,
-			       time_t *, int) __LIBC_ABI_PUBLIC__;
+			       time_t *, int);
 int		ns_verify_tcp(u_char *, int *, ns_tcp_tsig_state *, int);
 int		ns_verify_tcp_init(void *, const u_char *, int,
-					ns_tcp_tsig_state *) __LIBC_ABI_PUBLIC__;
-int		ns_samedomain(const char *, const char *) __LIBC_ABI_PUBLIC__;
-int		ns_subdomain(const char *, const char *) __LIBC_ABI_PUBLIC__;
-int		ns_makecanon(const char *, char *, size_t) __LIBC_ABI_PUBLIC__;
-int		ns_samename(const char *, const char *) __LIBC_ABI_PUBLIC__;
+					ns_tcp_tsig_state *);
+int		ns_samedomain(const char *, const char *);
+int		ns_subdomain(const char *, const char *);
+int		ns_makecanon(const char *, char *, size_t);
+int		ns_samename(const char *, const char *);
+int		ns_newmsg_init(u_char *buffer, size_t bufsiz, ns_newmsg *);
+int		ns_newmsg_copy(ns_newmsg *, ns_msg *);
+void		ns_newmsg_id(ns_newmsg *handle, uint16_t id);
+void		ns_newmsg_flag(ns_newmsg *handle, ns_flag flag, u_int value);
+int		ns_newmsg_q(ns_newmsg *handle, ns_nname_ct qname,
+			    ns_type qtype, ns_class qclass);
+int		ns_newmsg_rr(ns_newmsg *handle, ns_sect sect,
+			     ns_nname_ct name, ns_type type,
+			     ns_class rr_class, uint32_t ttl,
+			     uint16_t rdlen, const u_char *rdata);
+size_t		ns_newmsg_done(ns_newmsg *handle);
+ssize_t		ns_rdata_unpack(const u_char *, const u_char *, ns_type,
+				const u_char *, size_t, u_char *, size_t);
+int		ns_rdata_equal(ns_type,
+			       const u_char *, size_t,
+			       const u_char *, size_t);
+int		ns_rdata_refers(ns_type,
+				const u_char *, size_t,
+				const u_char *);
 __END_DECLS
 
 #ifdef BIND_4_COMPAT

libc/include/dlfcn.h

@@ -64,6 +64,7 @@ enum {
   RTLD_GLOBAL = 2,
 #endif
   RTLD_NOLOAD = 4,
+  RTLD_NODELETE = 0x01000,
 };
 
 #if defined (__LP64__)

libc/include/elf.h

@@ -54,29 +54,29 @@ typedef struct {
 #define DF_BIND_NOW   0x00000008
 #define DF_STATIC_TLS 0x00000010
 
-#define DF_1_NOW        0x00000001 // Perform complete relocation processing.
-#define DF_1_GLOBAL     0x00000002 // implies RTLD_GLOBAL
+#define DF_1_NOW        0x00000001 /* Perform complete relocation processing. */
+#define DF_1_GLOBAL     0x00000002 /* implies RTLD_GLOBAL */
 #define DF_1_GROUP      0x00000004
-#define DF_1_NODELETE   0x00000008 // implies RTLD_NODELETE
+#define DF_1_NODELETE   0x00000008 /* implies RTLD_NODELETE */
 #define DF_1_LOADFLTR   0x00000010
 #define DF_1_INITFIRST  0x00000020
-#define DF_1_NOOPEN     0x00000040 // Object can not be used with dlopen(3)
+#define DF_1_NOOPEN     0x00000040 /* Object can not be used with dlopen(3) */
 #define DF_1_ORIGIN     0x00000080
 #define DF_1_DIRECT     0x00000100
 #define DF_1_TRANS      0x00000200
 #define DF_1_INTERPOSE  0x00000400
 #define DF_1_NODEFLIB   0x00000800
-#define DF_1_NODUMP     0x00001000 // Object cannot be dumped with dldump(3)
+#define DF_1_NODUMP     0x00001000 /* Object cannot be dumped with dldump(3) */
 #define DF_1_CONFALT    0x00002000
 #define DF_1_ENDFILTEE  0x00004000
 #define DF_1_DISPRELDNE 0x00008000
 #define DF_1_DISPRELPND 0x00010000
 #define DF_1_NODIRECT   0x00020000
-#define DF_1_IGNMULDEF  0x00040000 // Internal use
-#define DF_1_NOKSYMS    0x00080000 // Internal use
-#define DF_1_NOHDR      0x00100000 // Internal use
+#define DF_1_IGNMULDEF  0x00040000 /* Internal use */
+#define DF_1_NOKSYMS    0x00080000 /* Internal use */
+#define DF_1_NOHDR      0x00100000 /* Internal use */
 #define DF_1_EDITED     0x00200000
-#define DF_1_NORELOC    0x00400000 // Internal use
+#define DF_1_NORELOC    0x00400000 /* Internal use */
 #define DF_1_SYMINTPOSE 0x00800000
 #define DF_1_GLOBAUDIT  0x01000000
 #define DF_1_SINGLETON  0x02000000
@@ -109,4 +109,7 @@ typedef struct {
 #define STT_LOPROC    13
 #define STT_HIPROC    15
 
+/* The kernel uses NT_PRFPREG but glibc also offers NT_FPREGSET */
+#define NT_FPREGSET NT_PRFPREG
+
 #endif /* _ELF_H */

libc/include/fcntl.h

@@ -39,20 +39,14 @@
 __BEGIN_DECLS
 
 #ifdef __LP64__
-/* LP64 kernels don't have flock64 because their flock is 64-bit. */
-struct flock64 {
-  short l_type;
-  short l_whence;
-  off64_t l_start;
-  off64_t l_len;
-  pid_t l_pid;
-};
+/* LP64 kernels don't have F_*64 defines because their flock is 64-bit. */
 #define F_GETLK64  F_GETLK
 #define F_SETLK64  F_SETLK
 #define F_SETLKW64 F_SETLKW
 #endif
 
 #define O_ASYNC FASYNC
+#define O_RSYNC O_SYNC
 
 #define SPLICE_F_MOVE 1
 #define SPLICE_F_NONBLOCK 2

libc/include/features.h

@@ -25,34 +25,11 @@
  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  */
+
 #ifndef _FEATURES_H_
 #define _FEATURES_H_
 
-/* certain Linux-specific programs expect a <features.h> header file
- * that defines various features macros
- */
-
-/* we do include a number of BSD extensions */
-#define  _BSD_SOURCE  1
-
-/* we do include a number of GNU extensions */
-#define  _GNU_SOURCE  1
-
-/* C95 support */
-#undef __USE_ISOC95
-#if defined __STDC_VERSION__ && __STDC_VERSION__ >= 199409L
-# define __USE_ISOC95   1
-#endif
-
-/* C99 support */
-#undef __USE_ISOC99
-#if defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L
-# define __USE_ISOC99   1
-#endif
-
-/* Posix support */
-#define  __USE_POSIX   1
-#define  __USE_POSIX2  1
-#define  __USE_XPG     1
+/* Our <features.h> macro fun is all in <sys/cdefs.h>. */
+#include <sys/cdefs.h>
 
 #endif /* _FEATURES_H_ */

libc/include/libgen.h

@@ -25,6 +25,7 @@
  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  */
+
 #ifndef _LIBGEN_H
 #define _LIBGEN_H
 
@@ -33,8 +34,18 @@
 
 __BEGIN_DECLS
 
-/* On Android these don't modify their input, and use thread-local storage for their results. */
+#if !defined(__bionic_using_gnu_basename)
+/*
+ * <string.h> gets you the GNU basename.
+ * <libgen.h> the POSIX one.
+ * Note that our "POSIX" one has the wrong argument cv-qualifiers, but doesn't
+ * modify its input and uses thread-local storage for the result if necessary.
+ */
 extern char* basename(const char*);
+#define __bionic_using_posix_basename
+#endif
+
+/* This has the wrong argument cv-qualifiers, but doesn't modify its input and uses thread-local storage for the result if necessary. */
 extern char* dirname(const char*);
 
 #if !defined(__LP64__)

libc/include/limits.h

@@ -37,39 +37,6 @@
 
 #include <sys/cdefs.h>
 
-#if __POSIX_VISIBLE
-#define	_POSIX_ARG_MAX		4096
-#define	_POSIX_CHILD_MAX	25
-#define	_POSIX_LINK_MAX		8
-#define	_POSIX_MAX_CANON	255
-#define	_POSIX_MAX_INPUT	255
-#define	_POSIX_NAME_MAX		14
-#define	_POSIX_NGROUPS_MAX	0
-#define	_POSIX_OPEN_MAX		16
-#define	_POSIX_PATH_MAX		256
-#define _POSIX_PIPE_BUF		512
-#define	_POSIX_RE_DUP_MAX	255
-#define _POSIX_SSIZE_MAX	32767
-#define _POSIX_STREAM_MAX	8
-#define _POSIX_SYMLINK_MAX	255
-#define _POSIX_SYMLOOP_MAX	8
-#define _POSIX_TZNAME_MAX	3
-
-#define	_POSIX2_BC_BASE_MAX	99
-#define	_POSIX2_BC_DIM_MAX	2048
-#define	_POSIX2_BC_SCALE_MAX	99
-#define	_POSIX2_BC_STRING_MAX	1000
-#define	_POSIX2_COLL_WEIGHTS_MAX	2
-#define	_POSIX2_EXPR_NEST_MAX	32
-#define	_POSIX2_LINE_MAX	2048
-#define	_POSIX2_RE_DUP_MAX	_POSIX_RE_DUP_MAX
-
-#if __POSIX_VISIBLE >= 200112
-#define _POSIX_TTY_NAME_MAX	9	/* includes trailing NUL */
-#define _POSIX_LOGIN_NAME_MAX	9	/* includes trailing NUL */
-#endif /* __POSIX_VISIBLE >= 200112 */
-#endif /* __POSIX_VISIBLE */
-
 #if __XPG_VISIBLE
 #define PASS_MAX		128	/* _PASSWORD_LEN from <pwd.h> */
 
@@ -125,4 +92,9 @@
 /* glibc's PAGE_MASK is the bitwise negation of BSD's! TODO: remove? */
 #define PAGE_MASK (~(PAGE_SIZE - 1))
 
+#define SEM_VALUE_MAX 0x3fffffff
+
+/* POSIX says these belong in <unistd.h> but BSD has some in <limits.h>. */
+#include <machine/posix_limits.h>
+
 #endif /* !_LIMITS_H_ */

libc/include/machine/posix_limits.h

@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef _POSIX_LIMITS_H_
+#define _POSIX_LIMITS_H_
+
+/* TODO: complete and check these. */
+#define _POSIX2_LINE_MAX            2048
+#define _POSIX2_RE_DUP_MAX          _POSIX_RE_DUP_MAX
+#define _POSIX_ARG_MAX              4096
+#define _POSIX_CHILD_MAX            25
+#define _POSIX_CHOWN_RESTRICTED     1  /* yes, chown requires appropriate privileges */
+#define _POSIX_FSYNC                1  /* fdatasync() supported */
+#define _POSIX_JOB_CONTROL          1  /* job control is a Linux feature */
+#define _POSIX_LINK_MAX             8
+#define _POSIX_LOGIN_NAME_MAX       9  /* includes trailing NUL */
+#define _POSIX_MAPPED_FILES         1  /* mmap-ed files supported */
+#define _POSIX_MAX_CANON            255
+#define _POSIX_MAX_INPUT            255
+#define _POSIX_MONOTONIC_CLOCK      0  /* the monotonic clock may be available; ask sysconf */
+#define _POSIX_NAME_MAX             14
+#define _POSIX_NGROUPS_MAX          0
+#define _POSIX_NO_TRUNC             1  /* very long pathnames generate an error */
+#define _POSIX_OPEN_MAX             16
+#define _POSIX_PATH_MAX             256
+#define _POSIX_PIPE_BUF             512
+#define _POSIX_PRIORITY_SCHEDULING  1  /* priority scheduling is a Linux feature */
+#define _POSIX_REALTIME_SIGNALS     -1 /* for now, this is not supported */
+#define _POSIX_RE_DUP_MAX           255
+#define _POSIX_SAVED_IDS            1  /* saved user ids is a Linux feature */
+#define _POSIX_SEMAPHORES           200809L
+#define _POSIX_SEM_VALUE_MAX        32767
+#define _POSIX_SSIZE_MAX            32767
+#define _POSIX_STREAM_MAX           8
+#define _POSIX_SYMLINK_MAX          255
+#define _POSIX_SYMLOOP_MAX          8
+#define _POSIX_SYNCHRONIZED_IO      1  /* synchronized i/o supported */
+#define _POSIX_THREAD_PRIO_INHERIT  200112L  /* linux feature */
+#define _POSIX_THREAD_PRIO_PROTECT  200112L  /* linux feature */
+#define _POSIX_THREADS              1  /* we support threads */
+#define _POSIX_THREAD_STACKADDR     1  /* we support thread stack address */
+#define _POSIX_THREAD_STACKSIZE     1  /* we support thread stack size */
+#define _POSIX_TIMERS               1  /* Posix timers are supported */
+#define _POSIX_TTY_NAME_MAX         9  /* includes trailing NUL */
+#define _POSIX_TZNAME_MAX           3
+#define _POSIX_VDISABLE             '\0'
+
+#endif /* _POSIX_LIMITS_H_ */

libc/include/malloc.h

@@ -24,6 +24,7 @@
  */
 #include <sys/cdefs.h>
 #include <stddef.h>
+#include <stdio.h>
 
 __BEGIN_DECLS
 
@@ -53,6 +54,27 @@ struct mallinfo {
 
 extern struct mallinfo mallinfo(void);
 
+/*
+ * XML structure for malloc_info(3) is in the following format:
+ *
+ * <malloc version="jemalloc-1">
+ *   <heap nr="INT">
+ *     <allocated-large>INT</allocated-large>
+ *     <allocated-huge>INT</allocated-huge>
+ *     <allocated-bins>INT</allocated-bins>
+ *     <bins-total>INT</bins-total>
+ *     <bin nr="INT">
+ *       <allocated>INT</allocated>
+ *       <nmalloc>INT</nmalloc>
+ *       <ndalloc>INT</ndalloc>
+ *     </bin>
+ *     <!-- more bins -->
+ *   </heap>
+ *   <!-- more heaps -->
+ * </malloc>
+ */
+extern int malloc_info(int, FILE *);
+
 __END_DECLS
 
 #endif  /* LIBC_INCLUDE_MALLOC_H_ */

libc/include/pthread.h

@@ -206,10 +206,10 @@ int pthread_mutexattr_settype(pthread_mutexattr_t*, int) __nonnull((1));
 
 int pthread_mutex_destroy(pthread_mutex_t*) __nonnull((1));
 int pthread_mutex_init(pthread_mutex_t*, const pthread_mutexattr_t*) __nonnull((1));
-int pthread_mutex_lock(pthread_mutex_t*) /* __nonnull((1)) */;
+int pthread_mutex_lock(pthread_mutex_t*) __nonnull((1));
 int pthread_mutex_timedlock(pthread_mutex_t*, const struct timespec*) __nonnull((1, 2));
 int pthread_mutex_trylock(pthread_mutex_t*) __nonnull((1));
-int pthread_mutex_unlock(pthread_mutex_t*) /* __nonnull((1)) */;
+int pthread_mutex_unlock(pthread_mutex_t*) __nonnull((1));
 
 int pthread_once(pthread_once_t*, void (*)(void)) __nonnull((1, 2));