Merge "Update to tzdata2011n." into gingerbread

This is a bumper update from tzdata2010k, affecting many time zones, including:

2011c: Chile and Annette Island, Alaska.
2011d: Cuba, Samoa, and Turkey.
2011e: Chile and Morocco.
2011g: Egypt.
2011h: Russia and Curacao.
2011i: South Sudan (Africa/Juba), Samoa, Europe/Kalingrad, Newfoundland,
    America/Resolute, Metlakatla, America/Honolulu, America/Goose_Bay and
    America/St_Johns.
2011j: Samoa, Kenya, Uganda, and Tanzania.
2011k: Palestine, Gaza, Hebron, Belarus, Ukraine, and Russia.
2011l: Asia/Hebron and Pacific/Fiji (and historical data for
    America/Sitka).
2011m: Europe/Tiraspol (Moldova) and all four Ukrainian zones.
2011n: Cuba (America/Havana), Europe/Tiraspol (Moldova), Fiji.

(This list is not comprehensive.)

Bug: 5530615
Change-Id: I599250a1c19c2897425e4a5418b925b2f8f88e14

Android.mk

@@ -14,6 +14,11 @@
 # limitations under the License.
 #
 
+LOCAL_PATH := $(call my-dir)
+
 ifneq ($(TARGET_SIMULATOR),true)
   include $(call all-subdir-makefiles)
+else
+  # The host dalvikvm needs Android's concatenated & indexed timezone data.
+  include $(LOCAL_PATH)/libc/zoneinfo/Android.mk
 endif

ThirdPartyProject.prop

@@ -0,0 +1,10 @@
+# Copyright 2010 Google Inc. All Rights Reserved.
+#Fri Jul 16 10:03:08 PDT 2010
+currentVersion=Unknown
+version=Unknown
+isNative=true
+feedurl=http\://www.openbsd.org/security.html
+name=openbsd
+keywords=openbsd
+onDevice=true
+homepage=http\://openbsd.org

libc/Android.mk

@@ -11,9 +11,11 @@ libc_common_src_files := \
 	unistd/brk.c \
 	unistd/creat.c \
 	unistd/daemon.c \
+	unistd/eventfd.c \
 	unistd/exec.c \
 	unistd/fcntl.c \
 	unistd/fnmatch.c \
+	unistd/fstatfs.c \
 	unistd/ftime.c \
 	unistd/ftok.c \
 	unistd/getcwd.c \
@@ -63,7 +65,6 @@ libc_common_src_files := \
 	unistd/sleep.c \
 	unistd/statfs.c \
 	unistd/strsignal.c \
-	unistd/sysconf.c \
 	unistd/syslog.c \
 	unistd/system.c \
 	unistd/tcgetpgrp.c \
@@ -175,7 +176,6 @@ libc_common_src_files := \
 	stdlib/tolower_.c \
 	stdlib/toupper_.c \
 	stdlib/wchar.c \
-	string/bcopy.c \
 	string/index.c \
 	string/memccpy.c \
 	string/memchr.c \
@@ -186,7 +186,6 @@ libc_common_src_files := \
 	string/strcasestr.c \
 	string/strcat.c \
 	string/strchr.c \
-	string/strcmp.c \
 	string/strcoll.c \
 	string/strcpy.c \
 	string/strcspn.c \
@@ -196,7 +195,6 @@ libc_common_src_files := \
 	string/strlcat.c \
 	string/strlcpy.c \
 	string/strncat.c \
-	string/strncmp.c \
 	string/strncpy.c \
 	string/strndup.c \
 	string/strnlen.c \
@@ -208,6 +206,35 @@ libc_common_src_files := \
 	string/strtok.c \
 	string/strtotimeval.c \
 	string/strxfrm.c \
+	wchar/wcpcpy.c \
+	wchar/wcpncpy.c \
+	wchar/wcscasecmp.c \
+	wchar/wcscat.c \
+	wchar/wcschr.c \
+	wchar/wcscmp.c \
+	wchar/wcscoll.c \
+	wchar/wcscpy.c \
+	wchar/wcscspn.c \
+	wchar/wcsdup.c \
+	wchar/wcslcat.c \
+	wchar/wcslcpy.c \
+	wchar/wcslen.c \
+	wchar/wcsncasecmp.c \
+	wchar/wcsncat.c \
+	wchar/wcsncmp.c \
+	wchar/wcsncpy.c \
+	wchar/wcsnlen.c \
+	wchar/wcspbrk.c \
+	wchar/wcsrchr.c \
+	wchar/wcsspn.c \
+	wchar/wcsstr.c \
+	wchar/wcstok.c \
+	wchar/wcswidth.c \
+	wchar/wmemchr.c \
+	wchar/wmemcmp.c \
+	wchar/wmemcpy.c \
+	wchar/wmemmove.c \
+	wchar/wmemset.c \
 	inet/bindresvport.c \
 	inet/inet_addr.c \
 	inet/inet_aton.c \
@@ -219,7 +246,6 @@ libc_common_src_files := \
 	tzcode/localtime.c \
 	tzcode/strftime.c \
 	tzcode/strptime.c \
-	bionic/__errno.c \
 	bionic/__set_errno.c \
 	bionic/_rand48.c \
 	bionic/cpuacct.c \
@@ -288,11 +314,27 @@ libc_common_src_files := \
 	regex/regexec.c \
 	regex/regfree.c \
 
+# The following files are common, but must be compiled
+# with different C flags when building a static C library.
+#
+# The reason for this is the implementation of __get_tls()
+# that will differ between the shared and static versions
+# of the library.
+#
+# See comments in private/bionic_tls.h for more details.
+#
+# NOTE: bionic/pthread.c is added later to this list
+#       because it needs special handling on ARM, see
+#       below.
+#
+libc_static_common_src_files := \
+        unistd/sysconf.c \
+        bionic/__errno.c \
+
 # Architecture specific source files go here
 # =========================================================
 ifeq ($(TARGET_ARCH),arm)
 libc_common_src_files += \
-	bionic/eabi.c \
 	bionic/bionic_clone.c \
 	arch-arm/bionic/__get_pc.S \
 	arch-arm/bionic/__get_sp.S \
@@ -300,6 +342,7 @@ libc_common_src_files += \
 	arch-arm/bionic/_setjmp.S \
 	arch-arm/bionic/atomics_arm.S \
 	arch-arm/bionic/clone.S \
+	arch-arm/bionic/eabi.c \
 	arch-arm/bionic/ffs.S \
 	arch-arm/bionic/kill.S \
 	arch-arm/bionic/libgcc_compat.c \
@@ -313,16 +356,22 @@ libc_common_src_files += \
 	arch-arm/bionic/strlen.c.arm \
 	arch-arm/bionic/syscall.S \
 	string/memmove.c.arm \
+	string/bcopy.c \
+	string/strcmp.c \
+	string/strncmp.c \
 	unistd/socketcalls.c
 
 # These files need to be arm so that gdbserver
 # can set breakpoints in them without messing
 # up any thumb code.
 libc_common_src_files += \
-	bionic/pthread.c.arm \
+	bionic/pthread-rwlocks.c.arm \
 	bionic/pthread-timers.c.arm \
 	bionic/ptrace.c.arm
 
+libc_static_common_src_files += \
+        bionic/pthread.c.arm \
+
 # these are used by the static and dynamic versions of the libc
 # respectively
 libc_arch_static_src_files := \
@@ -344,16 +393,22 @@ libc_common_src_files += \
 	arch-x86/bionic/_setjmp.S \
 	arch-x86/bionic/vfork.S \
 	arch-x86/bionic/syscall.S \
-	arch-x86/string/bzero.S \
-	arch-x86/string/memset.S \
-	arch-x86/string/memcmp.S \
-	arch-x86/string/memcpy.S \
-	arch-x86/string/strlen.S \
-	string/memmove.c \
-	bionic/pthread.c \
+	arch-x86/string/bcopy_wrapper.S \
+	arch-x86/string/memcpy_wrapper.S \
+	arch-x86/string/memmove_wrapper.S \
+	arch-x86/string/bzero_wrapper.S \
+	arch-x86/string/memcmp_wrapper.S \
+	arch-x86/string/memset_wrapper.S \
+	arch-x86/string/strcmp_wrapper.S \
+	arch-x86/string/strncmp_wrapper.S \
+	arch-x86/string/strlen_wrapper.S \
+	bionic/pthread-rwlocks.c \
 	bionic/pthread-timers.c \
 	bionic/ptrace.c
 
+libc_static_common_src_files += \
+        bionic/pthread.c \
+
 # this is needed for static versions of libc
 libc_arch_static_src_files := \
 	arch-x86/bionic/dl_iterate_phdr_static.c
@@ -381,13 +436,19 @@ libc_common_src_files += \
 	arch-sh/bionic/__set_tls.c \
 	arch-sh/bionic/__get_tls.c \
 	arch-sh/bionic/ffs.S \
+	string/bcopy.c \
+	string/strcmp.c \
+	string/strncmp.c \
 	string/memcmp.c \
 	string/strlen.c \
-	bionic/eabi.c \
-	bionic/pthread.c \
+	bionic/pthread-rwlocks.c \
 	bionic/pthread-timers.c \
 	bionic/ptrace.c \
 	unistd/socketcalls.c
+
+libc_static_common_src_files += \
+        bionic/pthread.c \
+
 endif # sh
 
 endif # !x86
@@ -403,7 +464,6 @@ libc_common_cflags := \
 		-D_LIBC=1 			\
 		-DSOFTFLOAT                     \
 		-DFLOATING_POINT		\
-		-DNEED_PSELECT=1		\
 		-DINET6 \
 		-I$(LOCAL_PATH)/private \
 		-DUSE_DL_PREFIX \
@@ -437,9 +497,29 @@ ifeq ($(TARGET_ARCH),arm)
 else # !arm
   ifeq ($(TARGET_ARCH),x86)
     libc_crt_target_cflags := -m32
+
+    # Enable recent IA friendly memory routines (such as for Atom)
+    # These will not work on the earlier x86 machines
+    libc_common_cflags += -mtune=i686 -DUSE_SSSE3 -DUSE_SSE2
   endif # x86
 endif # !arm
 
+# Define ANDROID_SMP appropriately.
+ifeq ($(TARGET_CPU_SMP),true)
+    libc_common_cflags += -DANDROID_SMP=1
+else
+    libc_common_cflags += -DANDROID_SMP=0
+endif
+
+# Needed to access private/__dso_handle.S from
+# crtbegin_xxx.S and crtend_xxx.S
+#
+libc_crt_target_cflags += -I$(LOCAL_PATH)/private
+
+ifeq ($(TARGET_ARCH),arm)
+libc_crt_target_cflags += -DCRT_LEGACY_WORKAROUND
+endif
+
 # Define some common includes
 # ========================================================
 libc_common_c_includes := \
@@ -453,22 +533,35 @@ libc_common_c_includes := \
 # executables)
 # ==========================================================================
 
+ifneq ($(filter arm x86,$(TARGET_ARCH)),)
+# ARM and x86 need crtbegin_so/crtend_so.
+#
+# For x86, the .init section must point to a function that calls all
+# entries in the .ctors section. (on ARM this is done through the
+# .init_array section instead).
+#
+# For both platforms, the .fini_array section must point to a function
+# that will call __cxa_finalize(&__dso_handle) in order to ensure that
+# static C++ destructors are properly called on dlclose().
+#
+
+libc_crt_target_so_cflags := $(libc_crt_target_cflags)
 ifeq ($(TARGET_ARCH),x86)
-# we only need begin_so/end_so for x86, since it needs an appropriate .init
-# section in the shared library with a function to call all the entries in
-# .ctors section. ARM uses init_array, and does not need the function.
+    # This flag must be added for x86 targets, but not for ARM
+    libc_crt_target_so_cflags += -fPIC
+endif
 GEN := $(TARGET_OUT_STATIC_LIBRARIES)/crtbegin_so.o
 $(GEN): $(LOCAL_PATH)/arch-$(TARGET_ARCH)/bionic/crtbegin_so.S
 	@mkdir -p $(dir $@)
-	$(TARGET_CC) $(libc_crt_target_cflags) -o $@ -c $<
+	$(TARGET_CC) $(libc_crt_target_so_cflags) -o $@ -c $<
 ALL_GENERATED_SOURCES += $(GEN)
 
 GEN := $(TARGET_OUT_STATIC_LIBRARIES)/crtend_so.o
 $(GEN): $(LOCAL_PATH)/arch-$(TARGET_ARCH)/bionic/crtend_so.S
 	@mkdir -p $(dir $@)
-	$(TARGET_CC) $(libc_crt_target_cflags) -o $@ -c $<
+	$(TARGET_CC) $(libc_crt_target_so_cflags) -o $@ -c $<
 ALL_GENERATED_SOURCES += $(GEN)
-endif # TARGET_ARCH == x86
+endif # TARGET_ARCH == x86 || TARGET_ARCH == arm
 
 
 GEN := $(TARGET_OUT_STATIC_LIBRARIES)/crtbegin_static.o
@@ -504,6 +597,9 @@ include $(CLEAR_VARS)
 
 LOCAL_SRC_FILES := $(libc_common_src_files)
 LOCAL_CFLAGS := $(libc_common_cflags)
+ifeq ($(TARGET_ARCH),arm)
+LOCAL_CFLAGS += -DCRT_LEGACY_WORKAROUND
+endif
 LOCAL_C_INCLUDES := $(libc_common_c_includes)
 LOCAL_MODULE := libc_common
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
@@ -525,10 +621,12 @@ include $(CLEAR_VARS)
 
 LOCAL_SRC_FILES := \
 	$(libc_arch_static_src_files) \
+	$(libc_static_common_src_files) \
 	bionic/libc_init_static.c
 
 LOCAL_C_INCLUDES := $(libc_common_c_includes)
-LOCAL_CFLAGS := $(libc_common_cflags)
+LOCAL_CFLAGS := $(libc_common_cflags) \
+                -DLIBC_STATIC
 
 LOCAL_MODULE := libc_nomalloc
 LOCAL_WHOLE_STATIC_LIBRARIES := libc_common
@@ -544,6 +642,7 @@ include $(CLEAR_VARS)
 
 LOCAL_SRC_FILES := \
 	$(libc_arch_static_src_files) \
+	$(libc_static_common_src_files) \
 	bionic/dlmalloc.c \
 	bionic/malloc_debug_common.c \
 	bionic/libc_init_static.c
@@ -568,6 +667,7 @@ LOCAL_C_INCLUDES := $(libc_common_c_includes)
 
 LOCAL_SRC_FILES := \
 	$(libc_arch_dynamic_src_files) \
+	$(libc_static_common_src_files) \
 	bionic/dlmalloc.c \
 	bionic/malloc_debug_common.c \
 	bionic/libc_init_dynamic.c
@@ -616,6 +716,7 @@ LOCAL_MODULE:= libc_malloc_debug_leak
 LOCAL_SHARED_LIBRARIES := libc
 LOCAL_WHOLE_STATIC_LIBRARIES := libc_common
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
+LOCAL_ALLOW_UNDEFINED_SYMBOLS := true
 # Don't prelink
 LOCAL_PRELINK_MODULE := false
 # Don't install on release build

libc/SYSCALLS.TXT

@@ -33,7 +33,7 @@ void    _exit:exit_group (int)      248,252
 void    _exit_thread:exit (int)	    1
 pid_t   __fork:fork (void)           2
 pid_t   _waitpid:waitpid (pid_t, int*, int, struct rusage*)   -1,7
-int     waitid(int, pid_t, struct siginfo_t*, int,void*)          280,284
+int     __waitid:waitid(int, pid_t, struct siginfo_t*, int,void*)          280,284
 
 # NOTE: this system call is never called directly, but we list it there
 #       to have __NR_clone properly defined.
@@ -112,15 +112,17 @@ int         flock(int, int)   143
 int         fchmod(int, mode_t)  94
 int         dup(int)  41
 int         pipe(int *)  42,42,-1
+int         pipe2(int *, int) 359,331
 int         dup2(int, int)   63
 int         select:_newselect(int, struct fd_set *, struct fd_set *, struct fd_set *, struct timeval *)  142
 int         ftruncate(int, off_t)  93
 int         getdents:getdents64(unsigned int, struct dirent *, unsigned int)   217,220
 int         fsync(int)  118
+int         fdatasync(int) 148
 int         fchown:fchown32(int, uid_t, gid_t)  207
 void        sync(void)  36
 int         __fcntl64:fcntl64(int, int, void *)  221
-int         fstatfs:fstatfs64(int, size_t, struct statfs *)  267,269
+int         __fstatfs64:fstatfs64(int, size_t, struct statfs *)  267,269
 ssize_t     sendfile(int out_fd, int in_fd, off_t *offset, size_t count)  187
 int         fstatat:fstatat64(int dirfd, const char *path, struct stat *buf, int flags)   327,300
 int         mkdirat(int dirfd, const char *pathname, mode_t mode)  323,296
@@ -229,8 +231,8 @@ int sched_get_priority_min(int policy)  160
 int sched_rr_get_interval(pid_t pid, struct timespec *interval)  161
 
 # io priorities
-int ioprio_set(int which, int who, int ioprio) 314,289
-int ioprio_get(int which, int who) 315,290
+int ioprio_set(int which, int who, int ioprio) 314,289,288
+int ioprio_get(int which, int who) 315,290,289
 
 # other
 int     uname(struct utsname *)  122
@@ -241,6 +243,7 @@ int     __syslog:syslog(int, char *, int)  103
 int     init_module(void *, unsigned long, const char *)  128
 int     delete_module(const char*, unsigned int)   129
 int     klogctl:syslog(int, char *, int)   103
+int     sysinfo(struct sysinfo *)  116
 
 # futex
 int	futex(void *, int, int, void *, void *, int) 240
@@ -256,6 +259,8 @@ int     inotify_rm_watch(int, unsigned int)  318,293,292
 
 int     poll(struct pollfd *, unsigned int, long)  168
 
+int     eventfd:eventfd2(unsigned int, int)  356,328
+
 # ARM-specific ARM_NR_BASE == 0x0f0000 == 983040
 int     __set_tls:ARM_set_tls(void*)                                 983045,-1
 int     cacheflush:ARM_cacheflush(long start, long end, long flags)  983042,-1

libc/arch-arm/bionic/_setjmp.S

@@ -3,6 +3,7 @@
 
 /*
  * Copyright (c) 1997 Mark Brinicombe
+ * Copyright (c) 2010 Android Open Source Project.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -35,6 +36,7 @@
 
 #include <machine/asm.h>
 #include <machine/setjmp.h>
+#include <machine/cpu-features.h>
 
 /*
  * C library -- _setjmp, _longjmp
@@ -51,18 +53,20 @@
 
 ENTRY(_setjmp)
 	ldr	r1, .L_setjmp_magic
-	str	r1, [r0], #4
-#ifdef SOFTFLOAT
-	add	r0, r0, #52
-#else
-	/* Store fp registers */
-	sfm	f4, 4, [r0], #48
-	/* Store fpsr */
-	rfs	r1
-	str	r1, [r0], #0x0004
-#endif	/* SOFTFLOAT */
-	/* Store integer registers */
-        stmia	r0, {r4-r14}
+	str	r1, [r0, #(_JB_MAGIC * 4)]
+
+	/* Store core registers */
+	add     r1, r0, #(_JB_CORE_BASE * 4)
+	stmia   r1, {r4-r14}
+
+#ifdef __ARM_HAVE_VFP
+	/* Store floating-point registers */
+	add     r1, r0, #(_JB_FLOAT_BASE * 4)
+	vstmia  r1, {d8-d15}
+	/* Store floating-point state */
+	fmrx    r1, fpscr
+	str     r1, [r0, #(_JB_FLOAT_STATE * 4)]
+#endif  /* __ARM_HAVE_VFP */
 
         mov	r0, #0x00000000
         bx      lr
@@ -72,21 +76,22 @@ ENTRY(_setjmp)
 
 ENTRY(_longjmp)
 	ldr	r2, .L_setjmp_magic
-	ldr	r3, [r0], #4
+	ldr	r3, [r0, #(_JB_MAGIC * 4)]
 	teq	r2, r3
 	bne	botch
 
-#ifdef SOFTFLOAT
-	add	r0, r0, #52
-#else
-	/* Restore fp registers */
-	lfm	f4, 4, [r0], #48
-	/* Restore fpsr */
-	ldr	r4, [r0], #0x0004
-	wfs	r4
-#endif	/* SOFTFLOAT */
-       	/* Restore integer registers */
-        ldmia	r0, {r4-r14}
+#ifdef __ARM_HAVE_VFP
+	/* Restore floating-point registers */
+	add     r2, r0, #(_JB_FLOAT_BASE * 4)
+	vldmia  r2, {d8-d15}
+	/* Restore floating-point state */
+	ldr     r2, [r0, #(_JB_FLOAT_STATE * 4)]
+	fmxr    fpscr, r2
+#endif /* __ARM_HAVE_VFP */
+
+	/* Restore core registers */
+	add     r2, r0, #(_JB_CORE_BASE * 4)
+	ldmia   r2, {r4-r14}
 
 	/* Validate sp and r14 */
 	teq	sp, #0

libc/arch-arm/bionic/atexit.S

@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2011 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 CRT_LEGACY_WORKAROUND
+	.arch armv5te
+	.fpu softvfp
+	.eabi_attribute 20, 1
+	.eabi_attribute 21, 1
+	.eabi_attribute 23, 3
+	.eabi_attribute 24, 1
+	.eabi_attribute 25, 1
+	.eabi_attribute 26, 2
+	.eabi_attribute 30, 4
+	.eabi_attribute 18, 4
+	.code	16
+	.section	.text.atexit,"ax",%progbits
+	.align	2
+	.global	atexit
+	.hidden	atexit
+	.code	16
+	.thumb_func
+	.type	atexit, %function
+atexit:
+	.fnstart
+.LFB0:
+	.save	{r4, lr}
+	push	{r4, lr}
+.LCFI0:
+	ldr	r3, .L3
+	mov	r1, #0
+	@ sp needed for prologue
+.LPIC0:
+	add	r3, pc
+	ldr	r2, [r3]
+	bl	__cxa_atexit
+	pop	{r4, pc}
+.L4:
+	.align	2
+.L3:
+	.word	__dso_handle-(.LPIC0+4)
+.LFE0:
+	.fnend
+	.size	atexit, .-atexit
+#endif

libc/arch-arm/bionic/atomics_arm.S

@@ -26,6 +26,7 @@
  * SUCH DAMAGE.
  */
 #include <sys/linux-syscalls.h>
+#include <machine/cpu-features.h>
 
 .global __atomic_cmpxchg
 .type __atomic_cmpxchg, %function
@@ -39,9 +40,73 @@
 #define FUTEX_WAIT 0
 #define FUTEX_WAKE 1
 
-#if 1
-   .equ     kernel_cmpxchg, 0xFFFF0FC0
-   .equ     kernel_atomic_base, 0xFFFF0FFF
+#if defined(__ARM_HAVE_LDREX_STREX)
+/*
+ * ===========================================================================
+ *      ARMv6+ implementation
+ * ===========================================================================
+ */
+
+/* r0(addr) -> r0(old) */
+__atomic_dec:
+    .fnstart
+    mov     r1, r0                      @ copy addr so we don't clobber it
+1:  ldrex   r0, [r1]                    @ load current value into r0
+    sub     r2, r0, #1                  @ generate new value into r2
+    strex   r3, r2, [r1]                @ try to store new value; result in r3
+    cmp     r3, #0                      @ success?
+    bxeq    lr                          @ yes, return
+    b       1b                          @ no, retry
+    .fnend
+
+/* r0(addr) -> r0(old) */
+__atomic_inc:
+    .fnstart
+    mov     r1, r0
+1:  ldrex   r0, [r1]
+    add     r2, r0, #1
+    strex   r3, r2, [r1]
+    cmp     r3, #0
+    bxeq    lr
+    b       1b
+    .fnend
+
+/* r0(old) r1(new) r2(addr) -> r0(zero_if_succeeded) */
+__atomic_cmpxchg:
+    .fnstart
+1:  mov     ip, #2                      @ ip=2 means "new != old"
+    ldrex   r3, [r2]                    @ load current value into r3
+    teq     r0, r3                      @ new == old?
+    strexeq ip, r1, [r2]                @ yes, try store, set ip to 0 or 1
+    teq     ip, #1                      @ strex failure?
+    beq     1b                          @ yes, retry
+    mov     r0, ip                      @ return 0 on success, 2 on failure
+    bx      lr
+    .fnend
+
+/* r0(new) r1(addr) -> r0(old) */
+__atomic_swap:
+    .fnstart
+1:  ldrex   r2, [r1]
+    strex   r3, r0, [r1]
+    teq     r3, #0
+    bne     1b
+    mov     r0, r2
+    bx      lr
+    .fnend
+
+#else /*not defined __ARM_HAVE_LDREX_STREX*/
+/*
+ * ===========================================================================
+ *      Pre-ARMv6 implementation
+ * ===========================================================================
+ */
+
+    /* int __kernel_cmpxchg(int oldval, int newval, int* ptr) */
+    .equ    kernel_cmpxchg, 0xFFFF0FC0
+    .equ    kernel_atomic_base, 0xFFFF0FFF
+
+/* r0(addr) -> r0(old) */
 __atomic_dec:
     .fnstart
     .save {r4, lr}
@@ -59,6 +124,7 @@ __atomic_dec:
     bx      lr
     .fnend
 
+/* r0(addr) -> r0(old) */
 __atomic_inc:
     .fnstart
     .save {r4, lr}
@@ -95,64 +161,16 @@ __atomic_cmpxchg:
     ldmia   sp!, {r4, lr}
     bx      lr
     .fnend
-#else
-#define KUSER_CMPXCHG 0xffffffc0
-
-/* r0(old) r1(new) r2(addr) -> r0(zero_if_succeeded) */
-__atomic_cmpxchg:
-    stmdb   sp!, {r4, lr}
-    mov     r4, r0          /* r4 = save oldvalue */
-1:  add     lr, pc, #4
-    mov     r0, r4          /* r0 = oldvalue */
-    mov     pc, #KUSER_CMPXCHG
-    bcs     2f              /* swap was made. we're good, return. */
-    ldr     r3, [r2]        /* swap not made, see if it's because *ptr!=oldvalue */
-    cmp     r3, r4
-    beq     1b
-2:  ldmia   sp!, {r4, lr}
-    bx      lr
-
-/* r0(addr) -> r0(old) */
-__atomic_dec:
-    stmdb   sp!, {r4, lr}
-    mov     r2, r0          /* address */
-1:  ldr     r0, [r2]        /* oldvalue */
-    add     lr, pc, #4
-    sub     r1, r0, #1      /* newvalue = oldvalue - 1 */
-    mov     pc, #KUSER_CMPXCHG
-    bcc     1b              /* no swap, try again until we get it right */
-    mov     r0, ip          /* swapped, return the old value */
-    ldmia   sp!, {r4, lr}
-    bx      lr
-
-/* r0(addr) -> r0(old) */
-__atomic_inc:
-    stmdb   sp!, {r4, lr}
-    mov     r2, r0          /* address */
-1:  ldr     r0, [r2]        /* oldvalue */
-    add     lr, pc, #4
-    add     r1, r0, #1      /* newvalue = oldvalue + 1 */
-    mov     pc, #KUSER_CMPXCHG
-    bcc     1b              /* no swap, try again until we get it right */
-    mov     r0, ip          /* swapped, return the old value */
-    ldmia   sp!, {r4, lr}
-    bx      lr
-#endif
 
 /* r0(new) r1(addr) -> r0(old) */
-/* replaced swp instruction with ldrex/strex for ARMv6 & ARMv7 */
 __atomic_swap:
-#if defined (_ARM_HAVE_LDREX_STREX)
-1:  ldrex   r2, [r1]
-    strex   r3, r0, [r1]
-    teq     r3, #0
-    bne     1b
-    mov     r0, r2
-    mcr     p15, 0, r0, c7, c10, 5 /* or, use dmb */
-#else
+    .fnstart
     swp     r0, r0, [r1]
-#endif
     bx      lr
+    .fnend
+
+#endif /*not defined __ARM_HAVE_LDREX_STREX*/
+
 
 /* __futex_wait(*ftx, val, *timespec) */
 /* __futex_wake(*ftx, counter) */
@@ -197,6 +215,8 @@ __futex_wait:
     .fnend
 
 __futex_wake:
+    .fnstart
+    .save   {r4, r7}
     stmdb   sp!, {r4, r7}
     mov     r2, r1
     mov     r1, #FUTEX_WAKE
@@ -204,6 +224,7 @@ __futex_wake:
     swi     #0
     ldmia   sp!, {r4, r7}
     bx      lr
+    .fnend
 
 #else
 

libc/arch-arm/bionic/crtbegin_dynamic.S

@@ -31,7 +31,7 @@
 	.globl _start
 
 # this is the small startup code that is first run when
-# any executable that is statically-linked with Bionic
+# any executable that is dynamically-linked with Bionic
 # runs.
 #
 # it's purpose is to call __libc_init with appropriate
@@ -63,13 +63,7 @@ _start:
     .long   __INIT_ARRAY__
     .long   __FINI_ARRAY__
     .long   __CTOR_LIST__
-      
-# the .ctors section contains a list of pointers to "constructor"
-# functions that need to be called in order during C library initialization,
-# just before the program is being run. This is a C++ requirement
-#
-# the last entry shall be 0, and is defined in crtend.S
-#
+
 	.section .preinit_array, "aw"
 	.globl __PREINIT_ARRAY__
 __PREINIT_ARRAY__:
@@ -90,3 +84,5 @@ __FINI_ARRAY__:
 __CTOR_LIST__:
 	.long -1
 
+#include "__dso_handle.S"
+#include "atexit.S"

libc/arch-arm/bionic/crtbegin_so.S

@@ -0,0 +1,61 @@
+/*
+ * 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.
+ */
+
+# Implement static C++ destructors when the shared
+# library is unloaded through dlclose().
+#
+# A call to this function must be the first entry
+# in the .fini_array. See 3.3.5.3.C of C++ ABI
+# standard.
+#
+__on_dlclose:
+        adr     r0, 0f
+        ldr     r0, [r0]
+        b       __cxa_finalize
+
+0:
+        .long   __dso_handle
+
+	.section .init_array, "aw"
+	.globl __INIT_ARRAY__
+__INIT_ARRAY__:
+	.long -1
+
+        .section .fini_array, "aw"
+        .globl __FINI_ARRAY__
+__FINI_ARRAY__:
+        .long -1
+        .long __on_dlclose
+
+#ifdef CRT_LEGACY_WORKAROUND
+#include "__dso_handle.S"
+#else
+#include "__dso_handle_so.S"
+#endif
+
+#include "atexit.S"

libc/arch-arm/bionic/crtbegin_static.S

@@ -63,13 +63,7 @@ _start:
     .long   __INIT_ARRAY__
     .long   __FINI_ARRAY__
     .long   __CTOR_LIST__
-      
-# the .ctors section contains a list of pointers to "constructor"
-# functions that need to be called in order during C library initialization,
-# just before the program is being run. This is a C++ requirement
-#
-# the last entry shall be 0, and is defined in crtend.S
-#
+
 	.section .preinit_array, "aw"
 	.globl __PREINIT_ARRAY__
 __PREINIT_ARRAY__:
@@ -90,3 +84,6 @@ __FINI_ARRAY__:
 __CTOR_LIST__:
 	.long -1
 
+
+#include "__dso_handle.S"
+#include "atexit.S"

libc/arch-arm/bionic/crtend_so.S

@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* This is the same than crtend.S except that a shared library
+ * cannot have a .preinit_array
+ */
+	
+	.section .init_array, "aw"
+	.long 0
+
+	.section .fini_array, "aw"
+	.long 0
+

libc/arch-arm/bionic/eabi.c

@@ -30,7 +30,21 @@
 
 extern int  __cxa_atexit(void (*)(void*), void*, void* );
 
-void* __dso_handle = 0;
+/* Temporary hack: this variable should not be part of the C library
+ * itself, but placed in the .bss section of each executable or
+ * shared library instead.
+ *
+ * We keep it here temporarily until the build system has been
+ * modified properly to use crtbegin_so.S and crtend_so.S when
+ * generating shared libraries.
+ *
+ * It must be a 'weak' symbol to avoid conflicts with the definitions
+ * that have been moved to crtbegin_static.S and crtbegin_dynamic.S
+ *
+ * For the record, it is used for static C++ object construction
+ * and destruction. See http://www.codesourcery.com/public/cxx-abi/abi.html#dso-dtor
+ */
+void* __attribute__((weak)) __dso_handle;
 
 /* The "C++ ABI for ARM" document states that static C++ constructors,
  * which are called from the .init_array, should manually call

libc/arch-arm/bionic/setjmp.S

@@ -3,6 +3,7 @@
 
 /*
  * Copyright (c) 1997 Mark Brinicombe
+ * Copyright (c) 2010 Android Open Source Project.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -35,6 +36,7 @@
 
 #include <machine/asm.h>
 #include <machine/setjmp.h>
+#include <machine/cpu-features.h>
 
 /*
  * C library -- setjmp, longjmp
@@ -57,24 +59,26 @@ ENTRY(setjmp)
 	ldmfd	sp!, {r0, r14}
 
 	/* Store signal mask */
-	str	r1, [r0, #(25 * 4)]
+	str	r1, [r0, #(_JB_SIGMASK * 4)]
 
 	ldr	r1, .Lsetjmp_magic
-	str	r1, [r0], #4
+	str	r1, [r0, #(_JB_MAGIC * 4)]
 
-#ifdef SOFTFLOAT
-	add	r0, r0, #52
-#else
-	/* Store fp registers */
-	sfm	f4, 4, [r0], #48
-	/* Store fpsr */
-	rfs	r1
-	str	r1, [r0], #0x0004
-#endif	/*SOFTFLOAT*/
-	/* Store integer registers */
-        stmia	r0, {r4-r14}
-        mov	r0, #0x00000000
-        bx      lr
+	/* Store core registers */
+	add     r1, r0, #(_JB_CORE_BASE * 4)
+	stmia   r1, {r4-r14}
+
+#ifdef __ARM_HAVE_VFP
+	/* Store floating-point registers */
+	add     r1, r0, #(_JB_FLOAT_BASE * 4)
+	vstmia  r1, {d8-d15}
+	/* Store floating-point state */
+	fmrx    r1, fpscr
+	str     r1, [r0, #(_JB_FLOAT_STATE * 4)]
+#endif  /* __ARM_HAVE_VFP */
+
+	mov	r0, #0x00000000
+	bx      lr
 
 .Lsetjmp_magic:
 	.word	_JB_MAGIC_SETJMP
@@ -82,12 +86,12 @@ ENTRY(setjmp)
 
 ENTRY(longjmp)
 	ldr	r2, .Lsetjmp_magic
-	ldr	r3, [r0]
+	ldr	r3, [r0, #(_JB_MAGIC * 4)]
 	teq	r2, r3
 	bne	botch
 
 	/* Fetch signal mask */
-	ldr	r2, [r0, #(25 * 4)]
+	ldr	r2, [r0, #(_JB_SIGMASK * 4)]
 
 	/* Set signal mask */
 	stmfd	sp!, {r0, r1, r14}
@@ -99,18 +103,18 @@ ENTRY(longjmp)
 	add	sp, sp, #4	/* unalign the stack */
 	ldmfd	sp!, {r0, r1, r14} 
 
-	add	r0, r0, #4
-#ifdef SOFTFLOAT
-	add	r0, r0, #52
-#else
-	/* Restore fp registers */
-	lfm	f4, 4, [r0], #48
-	/* Restore FPSR */
-	ldr	r4, [r0], #0x0004
-	wfs	r4
-#endif	/* SOFTFLOAT */
-	/* Restore integer registers */
-        ldmia	r0, {r4-r14}
+#ifdef __ARM_HAVE_VFP
+	/* Restore floating-point registers */
+	add     r2, r0, #(_JB_FLOAT_BASE * 4)
+	vldmia  r2, {d8-d15}
+	/* Restore floating-point state */
+	ldr     r2, [r0, #(_JB_FLOAT_STATE * 4)]
+	fmxr    fpscr, r2
+#endif /* __ARM_HAVE_VFP */
+
+	/* Restore core registers */
+	add     r2, r0, #(_JB_CORE_BASE * 4)
+	ldmia   r2, {r4-r14}
 
 	/* Validate sp and r14 */
 	teq	sp, #0

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

@@ -46,8 +46,6 @@ typedef long           ssize_t;
 typedef long           ptrdiff_t;
 #endif
 
-//#include <linux/types.h>
-
 /* 7.18.1.1 Exact-width integer types */
 typedef	__signed char		__int8_t;
 typedef	unsigned char		__uint8_t;

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

@@ -38,7 +38,7 @@
  * IMPORTANT: We have no intention to support anything below an ARMv4T !
  */
 
-/* _ARM_ARCH_REVISION is a number corresponding to the ARM revision
+/* __ARM_ARCH__ is a number corresponding to the ARM revision
  * we're going to support
  *
  * it looks like our toolchain doesn't define __ARM_ARCH__
@@ -142,20 +142,47 @@
  *
  *     ldr  pc, [<some address>]
  *
- * note that this affects any instruction that explicitely changes the
+ * note that this affects any instruction that explicitly changes the
  * value of the pc register, including ldm { ...,pc } or 'add pc, #offset'
  */
 #if __ARM_ARCH__ >= 5
 #  define __ARM_HAVE_PC_INTERWORK
 #endif
 
-/* define _ARM_HAVE_LDREX_STREX for ARMv6 and ARMv7 architecure to be
- * used in replacement of depricated swp instruction
+/* define __ARM_HAVE_LDREX_STREX for ARMv6 and ARMv7 architecture to be
+ * used in replacement of deprecated swp instruction
  */
 #if __ARM_ARCH__ >= 6
-#  define _ARM_HAVE_LDREX_STREX
+#  define __ARM_HAVE_LDREX_STREX
 #endif
 
+/* define __ARM_HAVE_DMB for ARMv7 architecture
+ */
+#if __ARM_ARCH__ >= 7
+#  define __ARM_HAVE_DMB
+#endif
+
+/* define __ARM_HAVE_LDREXD for ARMv7 architecture
+ * (also present in ARMv6K, but not implemented in ARMv7-M, neither of which
+ * we care about)
+ */
+#if __ARM_ARCH__ >= 7
+#  define __ARM_HAVE_LDREXD
+#endif
+
+/* define _ARM_HAVE_VFP if we have VFPv3
+ */
+#if __ARM_ARCH__ >= 7 && defined __VFP_FP__
+#  define __ARM_HAVE_VFP
+#endif
+
+/* define _ARM_HAVE_NEON for ARMv7 architecture if we support the
+ * Neon SIMD instruction set extensions. This also implies
+ * that VFPv3-D32 is supported.
+ */
+#if __ARM_ARCH__ >= 7 && defined __ARM_NEON__
+#  define __ARM_HAVE_NEON
+#endif
 
 /* Assembly-only macros */
 

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

@@ -1,87 +1,82 @@
-/*	$OpenBSD: setjmp.h,v 1.1 2004/02/01 05:09:49 drahn Exp $	*/
-/*	$NetBSD: setjmp.h,v 1.2 2001/08/25 14:45:59 bjh21 Exp $	*/
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
 
 /*
  * machine/setjmp.h: machine dependent setjmp-related information.
  */
 
-#ifdef __ELF__
-#define	_JBLEN	64		/* size, in longs, of a jmp_buf */
-#else
-#define	_JBLEN	29		/* size, in longs, of a jmp_buf */
-#endif
-
-/*
- * NOTE: The internal structure of a jmp_buf is *PRIVATE*
- *       This information is provided as there is software
- *       that fiddles with this with obtain the stack pointer
- *	 (yes really ! and its commercial !).
+/* _JBLEN is the size of a jmp_buf in longs.
+ * Do not modify this value or you will break the ABI !
  *
- * Description of the setjmp buffer
- *
- * word  0	magic number	(dependant on creator)
- *       1 -  3	f4		fp register 4
- *	 4 -  6	f5		fp register 5
- *	 7 -  9 f6		fp register 6
- *	10 - 12	f7		fp register 7
- *	13	fpsr		fp status register
- *	14	r4		register 4
- *	15	r5		register 5
- *	16	r6		register 6
- *	17	r7		register 7
- *	18	r8		register 8
- *	19	r9		register 9
- *	20	r10		register 10 (sl)
- *	21	r11		register 11 (fp)
- *	22	r12		register 12 (ip)
- *	23	r13		register 13 (sp)
- *	24	r14		register 14 (lr)
- *	25	signal mask	(dependant on magic)
- *	26	(con't)
- *	27	(con't)
- *	28	(con't)
- *
- * The magic number number identifies the jmp_buf and
- * how the buffer was created as well as providing
- * a sanity check
- *
- * A side note I should mention - Please do not tamper
- * with the floating point fields. While they are
- * always saved and restored at the moment this cannot
- * be garenteed especially if the compiler happens
- * to be generating soft-float code so no fp
- * registers will be used.
- *
- * Whilst this can be seen an encouraging people to
- * use the setjmp buffer in this way I think that it
- * is for the best then if changes occur compiles will
- * break rather than just having new builds falling over
- * mysteriously.
+ * This value comes from the original OpenBSD ARM-specific header
+ * that was replaced by this one.
  */
+#define _JBLEN  64
+
+/* According to the ARM AAPCS document, we only need to save
+ * the following registers:
+ *
+ *  Core   r4-r14
+ *
+ *  VFP    d8-d15  (see section 5.1.2.1)
+ *
+ *      Registers s16-s31 (d8-d15, q4-q7) must be preserved across subroutine
+ *      calls; registers s0-s15 (d0-d7, q0-q3) do not need to be preserved
+ *      (and can be used for passing arguments or returning results in standard
+ *      procedure-call variants). Registers d16-d31 (q8-q15), if present, do
+ *      not need to be preserved.
+ *
+ *  FPSCR  saved because GLibc does saves it too.
+ *
+ */
+
+/* The internal structure of a jmp_buf is totally private.
+ * Current layout (may change in the future):
+ *
+ * word   name         description
+ * 0      magic        magic number
+ * 1      sigmask      signal mask (not used with _setjmp / _longjmp)
+ * 2      float_base   base of float registers (d8 to d15)
+ * 18     float_state  floating-point status and control register
+ * 19     core_base    base of core registers (r4 to r14)
+ * 30     reserved     reserved entries (room to grow)
+ * 64
+ *
+ * NOTE: float_base must be at an even word index, since the
+ *       FP registers will be loaded/stored with instructions
+ *       that expect 8-byte alignment.
+ */
+
+#define _JB_MAGIC       0
+#define _JB_SIGMASK     (_JB_MAGIC+1)
+#define _JB_FLOAT_BASE  (_JB_SIGMASK+1)
+#define _JB_FLOAT_STATE (_JB_FLOAT_BASE + (15-8+1)*2)
+#define _JB_CORE_BASE   (_JB_FLOAT_STATE+1)
 
 #define _JB_MAGIC__SETJMP	0x4278f500
 #define _JB_MAGIC_SETJMP	0x4278f501
-
-/* Valid for all jmp_buf's */
-
-#define _JB_MAGIC		 0
-#define _JB_REG_F4		 1
-#define _JB_REG_F5		 4
-#define _JB_REG_F6		 7
-#define _JB_REG_F7		10
-#define _JB_REG_FPSR		13
-#define _JB_REG_R4		14
-#define _JB_REG_R5		15
-#define _JB_REG_R6		16
-#define _JB_REG_R7		17
-#define _JB_REG_R8		18
-#define _JB_REG_R9		19
-#define _JB_REG_R10		20
-#define _JB_REG_R11		21
-#define _JB_REG_R12		22
-#define _JB_REG_R13		23
-#define _JB_REG_R14		24
-
-/* Only valid with the _JB_MAGIC_SETJMP magic */
-
-#define _JB_SIGMASK		25

libc/arch-arm/syscalls.mk

@@ -3,7 +3,7 @@ syscall_src :=
 syscall_src += arch-arm/syscalls/_exit.S
 syscall_src += arch-arm/syscalls/_exit_thread.S
 syscall_src += arch-arm/syscalls/__fork.S
-syscall_src += arch-arm/syscalls/waitid.S
+syscall_src += arch-arm/syscalls/__waitid.S
 syscall_src += arch-arm/syscalls/__sys_clone.S
 syscall_src += arch-arm/syscalls/execve.S
 syscall_src += arch-arm/syscalls/__setuid.S
@@ -66,15 +66,17 @@ syscall_src += arch-arm/syscalls/flock.S
 syscall_src += arch-arm/syscalls/fchmod.S
 syscall_src += arch-arm/syscalls/dup.S
 syscall_src += arch-arm/syscalls/pipe.S
+syscall_src += arch-arm/syscalls/pipe2.S
 syscall_src += arch-arm/syscalls/dup2.S
 syscall_src += arch-arm/syscalls/select.S
 syscall_src += arch-arm/syscalls/ftruncate.S
 syscall_src += arch-arm/syscalls/getdents.S
 syscall_src += arch-arm/syscalls/fsync.S
+syscall_src += arch-arm/syscalls/fdatasync.S
 syscall_src += arch-arm/syscalls/fchown.S
 syscall_src += arch-arm/syscalls/sync.S
 syscall_src += arch-arm/syscalls/__fcntl64.S
-syscall_src += arch-arm/syscalls/fstatfs.S
+syscall_src += arch-arm/syscalls/__fstatfs64.S
 syscall_src += arch-arm/syscalls/sendfile.S
 syscall_src += arch-arm/syscalls/fstatat.S
 syscall_src += arch-arm/syscalls/mkdirat.S
@@ -161,6 +163,7 @@ syscall_src += arch-arm/syscalls/__syslog.S
 syscall_src += arch-arm/syscalls/init_module.S
 syscall_src += arch-arm/syscalls/delete_module.S
 syscall_src += arch-arm/syscalls/klogctl.S
+syscall_src += arch-arm/syscalls/sysinfo.S
 syscall_src += arch-arm/syscalls/futex.S
 syscall_src += arch-arm/syscalls/epoll_create.S
 syscall_src += arch-arm/syscalls/epoll_ctl.S
@@ -169,5 +172,6 @@ syscall_src += arch-arm/syscalls/inotify_init.S
 syscall_src += arch-arm/syscalls/inotify_add_watch.S
 syscall_src += arch-arm/syscalls/inotify_rm_watch.S
 syscall_src += arch-arm/syscalls/poll.S
+syscall_src += arch-arm/syscalls/eventfd.S
 syscall_src += arch-arm/syscalls/__set_tls.S
 syscall_src += arch-arm/syscalls/cacheflush.S

libc/arch-arm/syscalls/__fstatfs64.S

@@ -2,12 +2,12 @@
 #include <sys/linux-syscalls.h>
 
     .text
-    .type fstatfs, #function
-    .globl fstatfs
+    .type __fstatfs64, #function
+    .globl __fstatfs64
     .align 4
     .fnstart
 
-fstatfs:
+__fstatfs64:
     .save   {r4, r7}
     stmfd   sp!, {r4, r7}
     ldr     r7, =__NR_fstatfs64

libc/arch-arm/syscalls/__waitid.S

@@ -2,12 +2,12 @@
 #include <sys/linux-syscalls.h>
 
     .text
-    .type waitid, #function
-    .globl waitid
+    .type __waitid, #function
+    .globl __waitid
     .align 4
     .fnstart
 
-waitid:
+__waitid:
     mov     ip, sp
     .save   {r4, r5, r6, r7}
     stmfd   sp!, {r4, r5, r6, r7}

libc/arch-arm/syscalls/eventfd.S

@@ -0,0 +1,19 @@
+/* autogenerated by gensyscalls.py */
+#include <sys/linux-syscalls.h>
+
+    .text
+    .type eventfd, #function
+    .globl eventfd
+    .align 4
+    .fnstart
+
+eventfd:
+    .save   {r4, r7}
+    stmfd   sp!, {r4, r7}
+    ldr     r7, =__NR_eventfd2
+    swi     #0
+    ldmfd   sp!, {r4, r7}
+    movs    r0, r0
+    bxpl    lr
+    b       __set_syscall_errno
+    .fnend

libc/arch-arm/syscalls/fdatasync.S

@@ -0,0 +1,19 @@
+/* autogenerated by gensyscalls.py */
+#include <sys/linux-syscalls.h>
+
+    .text
+    .type fdatasync, #function
+    .globl fdatasync
+    .align 4
+    .fnstart
+
+fdatasync:
+    .save   {r4, r7}
+    stmfd   sp!, {r4, r7}
+    ldr     r7, =__NR_fdatasync
+    swi     #0
+    ldmfd   sp!, {r4, r7}
+    movs    r0, r0
+    bxpl    lr
+    b       __set_syscall_errno
+    .fnend

libc/arch-arm/syscalls/pipe2.S

@@ -0,0 +1,19 @@
+/* autogenerated by gensyscalls.py */
+#include <sys/linux-syscalls.h>
+
+    .text
+    .type pipe2, #function
+    .globl pipe2
+    .align 4
+    .fnstart
+
+pipe2:
+    .save   {r4, r7}
+    stmfd   sp!, {r4, r7}
+    ldr     r7, =__NR_pipe2
+    swi     #0
+    ldmfd   sp!, {r4, r7}
+    movs    r0, r0
+    bxpl    lr
+    b       __set_syscall_errno
+    .fnend

libc/arch-arm/syscalls/sysinfo.S

@@ -0,0 +1,19 @@
+/* autogenerated by gensyscalls.py */
+#include <sys/linux-syscalls.h>
+
+    .text
+    .type sysinfo, #function
+    .globl sysinfo
+    .align 4
+    .fnstart
+
+sysinfo:
+    .save   {r4, r7}
+    stmfd   sp!, {r4, r7}
+    ldr     r7, =__NR_sysinfo
+    swi     #0
+    ldmfd   sp!, {r4, r7}
+    movs    r0, r0
+    bxpl    lr
+    b       __set_syscall_errno
+    .fnend

libc/arch-sh/bionic/crtbegin_dynamic.S

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2009 The Android Open Source Project
+ * Copyright (C) 2009-2010 The Android Open Source Project
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,7 +31,7 @@
 .globl  _start
 
 # this is the small startup code that is first run when
-# any executable that is statically-linked with Bionic
+# any executable that is dynamically-linked with Bionic
 # runs.
 #
 # it's purpose is to call __libc_init with appropriate
@@ -93,3 +93,5 @@ __FINI_ARRAY__:
     .globl __CTOR_LIST__
 __CTOR_LIST__:
     .long -1
+
+#include "__dso_handle.S"

libc/arch-sh/bionic/crtbegin_static.S

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2009 The Android Open Source Project
+ * Copyright (C) 2009-2010 The Android Open Source Project
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -68,12 +68,6 @@ _start:
     .long   __FINI_ARRAY__
     .long   __CTOR_LIST__
 
-# the .ctors section contains a list of pointers to "constructor"
-# functions that need to be called in order during C library initialization,
-# just before the program is being run. This is a C++ requirement
-#
-# the last entry shall be 0, and is defined in crtend.S
-#
     .section .preinit_array, "aw"
     .globl __PREINIT_ARRAY__
 __PREINIT_ARRAY__:
@@ -94,3 +88,4 @@ __FINI_ARRAY__:
 __CTOR_LIST__:
     .long -1
 
+#include "__dso_handle.S"

libc/arch-sh/syscalls.mk

@@ -4,7 +4,7 @@ syscall_src += arch-sh/syscalls/_exit.S
 syscall_src += arch-sh/syscalls/_exit_thread.S
 syscall_src += arch-sh/syscalls/__fork.S
 syscall_src += arch-sh/syscalls/_waitpid.S
-syscall_src += arch-sh/syscalls/waitid.S
+syscall_src += arch-sh/syscalls/__waitid.S
 syscall_src += arch-sh/syscalls/__sys_clone.S
 syscall_src += arch-sh/syscalls/execve.S
 syscall_src += arch-sh/syscalls/__setuid.S
@@ -69,15 +69,17 @@ syscall_src += arch-sh/syscalls/__fcntl.S
 syscall_src += arch-sh/syscalls/flock.S
 syscall_src += arch-sh/syscalls/fchmod.S
 syscall_src += arch-sh/syscalls/dup.S
+syscall_src += arch-sh/syscalls/pipe2.S
 syscall_src += arch-sh/syscalls/dup2.S
 syscall_src += arch-sh/syscalls/select.S
 syscall_src += arch-sh/syscalls/ftruncate.S
 syscall_src += arch-sh/syscalls/getdents.S
 syscall_src += arch-sh/syscalls/fsync.S
+syscall_src += arch-sh/syscalls/fdatasync.S
 syscall_src += arch-sh/syscalls/fchown.S
 syscall_src += arch-sh/syscalls/sync.S
 syscall_src += arch-sh/syscalls/__fcntl64.S
-syscall_src += arch-sh/syscalls/fstatfs.S
+syscall_src += arch-sh/syscalls/__fstatfs64.S
 syscall_src += arch-sh/syscalls/sendfile.S
 syscall_src += arch-sh/syscalls/fstatat.S
 syscall_src += arch-sh/syscalls/mkdirat.S
@@ -150,6 +152,7 @@ syscall_src += arch-sh/syscalls/__syslog.S
 syscall_src += arch-sh/syscalls/init_module.S
 syscall_src += arch-sh/syscalls/delete_module.S
 syscall_src += arch-sh/syscalls/klogctl.S
+syscall_src += arch-sh/syscalls/sysinfo.S
 syscall_src += arch-sh/syscalls/futex.S
 syscall_src += arch-sh/syscalls/epoll_create.S
 syscall_src += arch-sh/syscalls/epoll_ctl.S
@@ -158,3 +161,4 @@ syscall_src += arch-sh/syscalls/inotify_init.S
 syscall_src += arch-sh/syscalls/inotify_add_watch.S
 syscall_src += arch-sh/syscalls/inotify_rm_watch.S
 syscall_src += arch-sh/syscalls/poll.S
+syscall_src += arch-sh/syscalls/eventfd.S

libc/arch-sh/syscalls/__fstatfs64.S

@@ -2,11 +2,11 @@
 #include <sys/linux-syscalls.h>
 
     .text
-    .type fstatfs, @function
-    .globl fstatfs
+    .type __fstatfs64, @function
+    .globl __fstatfs64
     .align 4
 
-fstatfs:
+__fstatfs64:
 
     /* invoke trap */
     mov.l   0f, r3  /* trap num */

libc/arch-sh/syscalls/__waitid.S

@@ -2,11 +2,11 @@
 #include <sys/linux-syscalls.h>
 
     .text
-    .type waitid, @function
-    .globl waitid
+    .type __waitid, @function
+    .globl __waitid
     .align 4
 
-waitid:
+__waitid:
 
     /* get ready for additonal arg */
     mov.l   @r15, r0

libc/arch-sh/syscalls/eventfd.S

@@ -0,0 +1,32 @@
+/* autogenerated by gensyscalls.py */
+#include <sys/linux-syscalls.h>
+
+    .text
+    .type eventfd, @function
+    .globl eventfd
+    .align 4
+
+eventfd:
+
+    /* invoke trap */
+    mov.l   0f, r3  /* trap num */
+    trapa   #(2 + 0x10)
+
+    /* check return value */
+    cmp/pz  r0
+    bt      __NR_eventfd2_end
+
+    /* keep error number */
+    sts.l   pr, @-r15
+    mov.l   1f, r1
+    jsr     @r1
+    mov     r0, r4
+    lds.l   @r15+, pr
+
+__NR_eventfd2_end:
+    rts
+    nop
+
+    .align  2
+0:  .long   __NR_eventfd2
+1:  .long   __set_syscall_errno

libc/arch-sh/syscalls/fdatasync.S

@@ -0,0 +1,32 @@
+/* autogenerated by gensyscalls.py */
+#include <sys/linux-syscalls.h>
+
+    .text
+    .type fdatasync, @function
+    .globl fdatasync
+    .align 4
+
+fdatasync:
+
+    /* invoke trap */
+    mov.l   0f, r3  /* trap num */
+    trapa   #(1 + 0x10)
+
+    /* check return value */
+    cmp/pz  r0
+    bt      __NR_fdatasync_end
+
+    /* keep error number */
+    sts.l   pr, @-r15
+    mov.l   1f, r1
+    jsr     @r1
+    mov     r0, r4
+    lds.l   @r15+, pr
+
+__NR_fdatasync_end:
+    rts
+    nop
+
+    .align  2
+0:  .long   __NR_fdatasync
+1:  .long   __set_syscall_errno

libc/arch-sh/syscalls/pipe2.S

@@ -0,0 +1,32 @@
+/* autogenerated by gensyscalls.py */
+#include <sys/linux-syscalls.h>
+
+    .text
+    .type pipe2, @function
+    .globl pipe2
+    .align 4
+
+pipe2:
+
+    /* invoke trap */
+    mov.l   0f, r3  /* trap num */
+    trapa   #(2 + 0x10)
+
+    /* check return value */
+    cmp/pz  r0
+    bt      __NR_pipe2_end
+
+    /* keep error number */
+    sts.l   pr, @-r15
+    mov.l   1f, r1
+    jsr     @r1
+    mov     r0, r4
+    lds.l   @r15+, pr
+
+__NR_pipe2_end:
+    rts
+    nop
+
+    .align  2
+0:  .long   __NR_pipe2
+1:  .long   __set_syscall_errno

libc/arch-sh/syscalls/sysinfo.S

@@ -0,0 +1,32 @@
+/* autogenerated by gensyscalls.py */
+#include <sys/linux-syscalls.h>
+
+    .text
+    .type sysinfo, @function
+    .globl sysinfo
+    .align 4
+
+sysinfo:
+
+    /* invoke trap */
+    mov.l   0f, r3  /* trap num */
+    trapa   #(1 + 0x10)
+
+    /* check return value */
+    cmp/pz  r0
+    bt      __NR_sysinfo_end
+
+    /* keep error number */
+    sts.l   pr, @-r15
+    mov.l   1f, r1
+    jsr     @r1
+    mov     r0, r4
+    lds.l   @r15+, pr
+
+__NR_sysinfo_end:
+    rts
+    nop
+
+    .align  2
+0:  .long   __NR_sysinfo
+1:  .long   __set_syscall_errno

libc/arch-x86/bionic/__stack_chk_fail_local.S

@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2011 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.
+ */
+/*
+ * Contributed by: Intel Corporation
+ */
+
+	.text
+	.p2align 4,,15
+	.globl	__stack_chk_fail_local
+	.hidden	__stack_chk_fail_local
+	.type	__stack_chk_fail_local, @function
+
+__stack_chk_fail_local:
+#ifdef __PIC__
+	pushl	%ebx
+	call	__x86.get_pc_thunk.bx
+	addl	$_GLOBAL_OFFSET_TABLE_, %ebx
+	call	__stack_chk_fail@PLT
+#else /* PIC */
+	jmp   __stack_chk_fail
+#endif /* not PIC */
+
+	.size	__stack_chk_fail_local, .-__stack_chk_fail_local

libc/arch-x86/bionic/atexit.S

@@ -0,0 +1,66 @@
+/*
+ * 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.
+ */
+	.text
+	.p2align 4,,15
+	.globl	atexit
+	.hidden	atexit
+	.type	atexit, @function
+atexit:
+	pushl	%ebp
+	movl	%esp, %ebp
+	pushl	%ebx
+	call	__x86.get_pc_thunk.bx
+	addl	$_GLOBAL_OFFSET_TABLE_, %ebx
+	subl	$20, %esp
+	movl	$0, 4(%esp)
+	movl	__dso_handle@GOTOFF(%ebx), %eax
+	movl	%eax, 8(%esp)
+	movl	8(%ebp), %eax
+	movl	%eax, (%esp)
+	call	__cxa_atexit@PLT
+	addl	$20, %esp
+	popl	%ebx
+	popl	%ebp
+	ret
+	.size	atexit, .-atexit
+
+	.section	.text.__x86.get_pc_thunk.bx,"axG",@progbits,__x86.get_pc_thunk.bx,comdat
+	.globl	__x86.get_pc_thunk.bx
+	.hidden	__x86.get_pc_thunk.bx
+	.type	__x86.get_pc_thunk.bx, @function
+__x86.get_pc_thunk.bx:
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	movl	(%esp), %ebx
+	ret

libc/arch-x86/bionic/atomics_x86.S

@@ -73,100 +73,3 @@ __futex_syscall4:
     popl    %esi
     popl    %ebx
     ret
-
-/* int __atomic_cmpxchg(int old, int new, volatile int* addr) */
-
-.text
-.globl __atomic_cmpxchg
-.type __atomic_cmpxchg, @function
-.align 4
-__atomic_cmpxchg:
-    mov     4(%esp), %eax             /* old */
-    mov     8(%esp), %ecx             /* new */
-    mov     12(%esp), %edx            /* addr */
-    lock cmpxchg %ecx, (%edx)
-    jnz 1f
-    xor    %eax, %eax
-    jmp 2f
-1:
-    movl   $1, %eax
-2:
-    ret                               /* 0 == success, 1 == failure */
-
-
-/* int __atomic_swap(int new, volatile int* addr) */
-
-.text
-.globl __atomic_swap
-.type __atomic_swap, @function
-.align 4
-__atomic_swap:
-    mov     4(%esp), %ecx             /* new */
-    mov     8(%esp), %edx             /* addr */
-    lock xchg %ecx, (%edx)
-    mov     %ecx, %eax
-    ret
-
-
-/*
- * int __atomic_dec(volatile int* addr)
- *
- * My x86 asm is really rusty.. this is probably suboptimal
- */
-
-.text
-.globl __atomic_dec
-.type __atomic_dec, @function
-.align 4
-__atomic_dec:
-   pushl    %ebx
-   pushl    %esi
-   movl     12(%esp), %ebx             /* addr */
-
-1:
-   movl     (%ebx), %esi               /* old = *addr */
-   movl     %esi, %edx
-   subl     $1, %edx                   /* new = old - 1 */
-
-   pushl    %ebx
-   pushl    %edx
-   pushl    %esi
-   call     __atomic_cmpxchg
-   addl     $12, %esp
-   test     %eax, %eax
-   jnz      1b
-
-   movl     %esi, %eax               /* return old */
-   popl     %esi
-   popl     %ebx
-   ret
-
-
-.text
-/* int __atomic_inc(volatile int* addr) */
-.globl __atomic_inc
-.type __atomic_inc, @function
-.align 4
-__atomic_inc:
-   pushl    %ebx
-   pushl    %esi
-   movl     12(%esp), %ebx             /* addr */
-
-1:
-   movl     (%ebx), %esi               /* old = *addr */
-   movl     %esi, %edx
-   addl     $1, %edx                   /* new = old + 1 */
-
-   pushl    %ebx
-   pushl    %edx
-   pushl    %esi
-   call     __atomic_cmpxchg
-   addl     $12, %esp
-   test     %eax, %eax
-   jnz      1b
-
-   movl     %esi, %eax               /* return old */
-   popl     %esi
-   popl     %ebx
-   ret
-

libc/arch-x86/bionic/clone.S

@@ -20,8 +20,7 @@ __pthread_clone:
         movl    %eax, -12(%ecx)
         movl    24(%esp), %eax
         movl    %eax, -8(%ecx)
-        lea     (%ecx), %eax
-        movl    %eax, -4(%ecx)
+        movl    %ecx, -4(%ecx)
 
         movl    $__NR_clone, %eax
         int     $0x80
@@ -52,4 +51,4 @@ __pthread_clone:
 /* XXX: TODO: Add __bionic_clone here
  *            See bionic/bionic_clone.c and arch-arm/bionic/clone.S
  *            for more details...
- */
+ */

libc/arch-x86/bionic/crtbegin_dynamic.S

@@ -30,7 +30,7 @@
 	.globl _start
 
 # this is the small startup code that is first run when
-# any executable that is statically-linked with Bionic
+# any executable that is dynamically-linked with Bionic
 # runs.
 #
 # it's purpose is to call __libc_init with appropriate
@@ -66,14 +66,7 @@ _start:
 1:  .long   __PREINIT_ARRAY__
     .long   __INIT_ARRAY__
     .long   __FINI_ARRAY__
-    .long   __CTOR_LIST__
-      
-# the .ctors section contains a list of pointers to "constructor"
-# functions that need to be called in order during C library initialization,
-# just before the program is being run. This is a C++ requirement
-#
-# the last entry shall be 0, and is defined in crtend.S
-#
+
 	.section .preinit_array, "aw"
 	.globl __PREINIT_ARRAY__
 __PREINIT_ARRAY__:
@@ -83,14 +76,62 @@ __PREINIT_ARRAY__:
 	.globl __INIT_ARRAY__
 __INIT_ARRAY__:
 	.long -1
+	.long	frame_dummy
 
 	.section .fini_array, "aw"
 	.globl __FINI_ARRAY__
 __FINI_ARRAY__:
 	.long -1
+	.long	__do_global_dtors_aux
 
-	.section .ctors, "aw"
-	.globl __CTOR_LIST__
-__CTOR_LIST__:
-	.long -1
+	.section	.eh_frame,"a",@progbits
+	.align 4
+	.type	__EH_FRAME_BEGIN__, @object
+__EH_FRAME_BEGIN__:
+	.text
+	.p2align 4,,15
+	.type	__do_global_dtors_aux, @function
+__do_global_dtors_aux:
+	pushl	%ebp
+	movl	%esp, %ebp
+	subl	$24, %esp
+	cmpb	$0, completed.4454
+	jne	.L4
+	movl	$__deregister_frame_info_bases, %eax
+	testl	%eax, %eax
+	je	.L3
+	movl	$__EH_FRAME_BEGIN__, (%esp)
+	call	__deregister_frame_info_bases
+.L3:
+	movb	$1, completed.4454
+.L4:
+	leave
+	ret
+	.text
+	.p2align 4,,15
+	.type	frame_dummy, @function
+frame_dummy:
+	pushl	%ebp
+	movl	$__register_frame_info_bases, %eax
+	movl	%esp, %ebp
+	subl	$24, %esp
+	testl	%eax, %eax
+	je	.L7
+	movl	%ebx, 12(%esp)
+	movl	$0, 8(%esp)
+	movl	$object.4466, 4(%esp)
+	movl	$__EH_FRAME_BEGIN__, (%esp)
+	call	__register_frame_info_bases
+.L7:
+	leave
+	ret
+	.local	completed.4454
+	.comm	completed.4454,1,1
+	.local	object.4466
+	.comm	object.4466,24,4
+	.weak	__register_frame_info_bases
+	.weak	__deregister_frame_info_bases
 
+#include "__dso_handle.S"
+#include "atexit.S"
+#include "__stack_chk_fail_local.S"

libc/arch-x86/bionic/crtbegin_so.S

@@ -1,11 +1,30 @@
-/* we put the _init() function here in case the user files for the shared
- * libs want to drop things into .init section.
- * We then will call our ctors from crtend_so.o */
-.section .init
-.align 4
-.type _init, @function
-.globl _init
-_init:
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
 
 .section .init_array, "aw"
 .align 4
@@ -13,6 +32,7 @@ _init:
 .globl __INIT_ARRAY__
 __INIT_ARRAY__:
     .long -1
+    .long frame_dummy
 
 .section .fini_array, "aw"
 .align 4
@@ -20,10 +40,72 @@ __INIT_ARRAY__:
 .globl __FINI_ARRAY__
 __FINI_ARRAY__:
     .long -1
+    .long __do_global_dtors_aux
 
-.section .ctors, "aw"
-.align 4
-.type __CTOR_LIST__, @object
-.globl __CTOR_LIST__
-__CTOR_LIST__:
-        .long -1
+	.section	.eh_frame,"a",@progbits
+	.align 4
+	.type	__EH_FRAME_BEGIN__, @object
+__EH_FRAME_BEGIN__:
+	.text
+	.p2align 4,,15
+	.type	__do_global_dtors_aux, @function
+__do_global_dtors_aux:
+	pushl	%ebp
+	movl	%esp, %ebp
+	pushl	%ebx
+	call	__x86.get_pc_thunk.bx
+	addl	$_GLOBAL_OFFSET_TABLE_, %ebx
+	subl	$20, %esp
+	cmpb	$0, completed.4454@GOTOFF(%ebx)
+	jne	.L5
+	movl	__dso_handle@GOTOFF(%ebx), %eax
+	movl	%eax, (%esp)
+	call	__cxa_finalize@PLT
+	movl	__deregister_frame_info_bases@GOT(%ebx), %eax
+	testl	%eax, %eax
+	je	.L4
+	leal	__EH_FRAME_BEGIN__@GOTOFF(%ebx), %eax
+	movl	%eax, (%esp)
+	call	__deregister_frame_info_bases@PLT
+.L4:
+	movb	$1, completed.4454@GOTOFF(%ebx)
+.L5:
+	addl	$20, %esp
+	popl	%ebx
+	popl	%ebp
+	ret
+	.text
+	.p2align 4,,15
+	.type	frame_dummy, @function
+frame_dummy:
+	pushl	%ebp
+	movl	%esp, %ebp
+	pushl	%ebx
+	call	__x86.get_pc_thunk.bx
+	addl	$_GLOBAL_OFFSET_TABLE_, %ebx
+	subl	$20, %esp
+	movl	__register_frame_info_bases@GOT(%ebx), %eax
+	testl	%eax, %eax
+	je	.L8
+	leal	object.4469@GOTOFF(%ebx), %eax
+	movl	%eax, 4(%esp)
+	leal	__EH_FRAME_BEGIN__@GOTOFF(%ebx), %eax
+	movl	%ebx, 12(%esp)
+	movl	$0, 8(%esp)
+	movl	%eax, (%esp)
+	call	__register_frame_info_bases@PLT
+.L8:
+	addl	$20, %esp
+	popl	%ebx
+	popl	%ebp
+	ret
+	.local	completed.4454
+	.comm	completed.4454,1,1
+	.local	object.4469
+	.comm	object.4469,24,4
+	.weak	__register_frame_info_bases
+	.weak	__deregister_frame_info_bases
+
+#include "__dso_handle_so.S"
+#include "atexit.S"
+#include "__stack_chk_fail_local.S"

libc/arch-x86/bionic/crtbegin_static.S

@@ -65,14 +65,7 @@ _start:
 1:  .long   __PREINIT_ARRAY__
     .long   __INIT_ARRAY__
     .long   __FINI_ARRAY__
-    .long   __CTOR_LIST__
 
-# the .ctors section contains a list of pointers to "constructor"
-# functions that need to be called in order during C library initialization,
-# just before the program is being run. This is a C++ requirement
-#
-# the last entry shall be 0, and is defined in crtend.S
-#
 	.section .preinit_array, "aw"
 	.globl __PREINIT_ARRAY__
 __PREINIT_ARRAY__:
@@ -82,14 +75,62 @@ __PREINIT_ARRAY__:
 	.globl __INIT_ARRAY__
 __INIT_ARRAY__:
 	.long -1
+	.long	frame_dummy
 
 	.section .fini_array, "aw"
 	.globl __FINI_ARRAY__
 __FINI_ARRAY__:
 	.long -1
+	.long	__do_global_dtors_aux
 
-	.section .ctors, "aw"
-	.globl __CTOR_LIST__
-__CTOR_LIST__:
-	.long -1
+	.section	.eh_frame,"a",@progbits
+	.align 4
+	.type	__EH_FRAME_BEGIN__, @object
+__EH_FRAME_BEGIN__:
+	.text
+	.p2align 4,,15
+	.type	__do_global_dtors_aux, @function
+__do_global_dtors_aux:
+	pushl	%ebp
+	movl	%esp, %ebp
+	subl	$24, %esp
+	cmpb	$0, completed.4454
+	jne	.L4
+	movl	$__deregister_frame_info_bases, %eax
+	testl	%eax, %eax
+	je	.L3
+	movl	$__EH_FRAME_BEGIN__, (%esp)
+	call	__deregister_frame_info_bases
+.L3:
+	movb	$1, completed.4454
+.L4:
+	leave
+	ret
+	.text
+	.p2align 4,,15
+	.type	frame_dummy, @function
+frame_dummy:
+	pushl	%ebp
+	movl	$__register_frame_info_bases, %eax
+	movl	%esp, %ebp
+	subl	$24, %esp
+	testl	%eax, %eax
+	je	.L7
+	movl	%ebx, 12(%esp)
+	movl	$0, 8(%esp)
+	movl	$object.4466, 4(%esp)
+	movl	$__EH_FRAME_BEGIN__, (%esp)
+	call	__register_frame_info_bases
+.L7:
+	leave
+	ret
+	.local	completed.4454
+	.comm	completed.4454,1,1
+	.local	object.4466
+	.comm	object.4466,24,4
+	.weak	__register_frame_info_bases
+	.weak	__deregister_frame_info_bases
 
+#include "__dso_handle.S"
+#include "atexit.S"
+#include "__stack_chk_fail_local.S"

libc/arch-x86/bionic/crtend.S

@@ -1,4 +1,3 @@
-	
 	.section .preinit_array, "aw"
 	.long 0
 
@@ -8,6 +7,9 @@
 	.section .fini_array, "aw"
 	.long 0
 
-	.section .ctors, "aw"
-	.long 0
-
+	.section	.eh_frame,"a",@progbits
+	.align 4
+	.type	__FRAME_END__, @object
+	.size	__FRAME_END__, 4
+__FRAME_END__:
+	.zero	4

libc/arch-x86/bionic/crtend_so.S

@@ -1,47 +1,12 @@
-.text
-.align 4
-.type __bionic_call_ctors, @function
-
-/*
- * The CTORS_LIST is marked by -1 (start) and 0 (end).
- * We mark the end of the .ctors section with the __CTOR_END__ section so
- * that we can just iterate backwards from it until we hit -1 and execute
- * all the function pointers. This seems to be the way to do it for SVR4
- * derived systems.
- */
-__bionic_call_ctors:
-    pushl  %esi
-    mov    $__CTOR_END__, %esi
-
-0:
-    /* now grab the next function pointer and check if its -1. If not,
-     * call it, otherwise we're done. We use %esi since it's callee saved.
-     */
-    subl    $4, %esi
-    mov     (%esi), %eax
-    cmp     $0xffffffff, %eax
-    je      1f
-    call    *%eax
-    jmp     0b
-
-1:
-    /* we're done */
-    popl    %esi
-    ret
-
-.section .init
-.align 4
-    call __bionic_call_ctors
-    ret
-
-.section .ctors, "aw", @progbits
-.align 4
-.type __CTOR_END__, @object
-__CTOR_END__:
-    .long 0
-
 .section .init_array, "aw"
     .long 0
 
 .section .fini_array, "aw"
     .long 0
+
+	.section	.eh_frame,"a",@progbits
+	.align 4
+	.type	__FRAME_END__, @object
+	.size	__FRAME_END__, 4
+__FRAME_END__:
+	.zero	4

libc/arch-x86/include/endian.h

@@ -31,14 +31,14 @@
 
 #if defined(_KERNEL) && !defined(I386_CPU)
 #define	__swap32md(x) ({						\
-	u_int32_t __swap32md_x = (x);					\
+	uint32_t __swap32md_x = (x);					\
 									\
 	__asm ("bswap %1" : "+r" (__swap32md_x));			\
 	__swap32md_x;							\
 })
 #else
 #define	__swap32md(x) ({						\
-	u_int32_t __swap32md_x = (x);					\
+	uint32_t __swap32md_x = (x);					\
 									\
 	__asm ("rorw $8, %w1; rorl $16, %1; rorw $8, %w1" :		\
 	    "+r" (__swap32md_x));					\
@@ -47,13 +47,13 @@
 #endif	/* _KERNEL && !I386_CPU */
 
 #define	__swap64md(x) ({						\
-	u_int64_t __swap64md_x = (x);					\
+	uint64_t __swap64md_x = (x);					\
 									\
-	(u_int64_t)__swap32md(__swap64md_x >> 32) |			\
-	    (u_int64_t)__swap32md(__swap64md_x & 0xffffffff) << 32;	\
+	(uint64_t)__swap32md(__swap64md_x >> 32) |			\
+	    (uint64_t)__swap32md(__swap64md_x & 0xffffffff) << 32;	\
 })
 #define	__swap16md(x) ({						\
-	u_int16_t __swap16md_x = (x);					\
+	uint16_t __swap16md_x = (x);					\
 									\
 	__asm ("rorw $8, %w1" : "+r" (__swap16md_x));			\
 	__swap16md_x;							\

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

@@ -36,13 +36,23 @@
 #define _I386__TYPES_H_
 
 /* the kernel defines size_t as unsigned int, but g++ wants it to be unsigned long */
-#define _SIZE_T
+#ifndef _SIZE_T_DEFINED_
+#  define _SIZE_T_DEFINED_
+#  ifdef ANDROID
+     typedef unsigned int  size_t;
+#  else
+     typedef unsigned long  size_t;
+#  endif
+#endif
+#if !defined(_SSIZE_T) && !defined(_SSIZE_T_DEFINED_)
+#define _SSIZE_T
+#define _SSIZE_T_DEFINED_
+typedef long int       ssize_t;
+#endif
+#ifndef _PTRDIFF_T
 #define _PTRDIFF_T
-typedef unsigned int   size_t;
-typedef int            ptrdiff_t;
-
-#define _OFF_T_DEFINED_
-#define _SIZE_T_DEFINED_
+typedef long           ptrdiff_t;
+#endif
 
 #include <linux/types.h>
 

libc/arch-x86/include/sys/atomics.h

@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2011 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 _SYS_ATOMICS_H
+#define _SYS_ATOMICS_H
+
+#include <sys/cdefs.h>
+#include <sys/time.h>
+
+__BEGIN_DECLS
+
+static inline __attribute__((always_inline)) int
+__atomic_cmpxchg(int old, int _new, volatile int *ptr)
+{
+  return !__sync_bool_compare_and_swap (ptr, old, _new);
+}
+
+static inline __attribute__((always_inline)) int
+__atomic_swap(int _new, volatile int *ptr)
+{
+  return __sync_lock_test_and_set(ptr, _new);
+}
+
+static inline __attribute__((always_inline)) int
+__atomic_dec(volatile int *ptr)
+{
+  return __sync_fetch_and_sub (ptr, 1);
+}
+
+static inline __attribute__((always_inline)) int
+__atomic_inc(volatile int *ptr)
+{
+  return __sync_fetch_and_add (ptr, 1);
+}
+
+int __futex_wait(volatile void *ftx, int val, const struct timespec *timeout);
+int __futex_wake(volatile void *ftx, int count);
+
+__END_DECLS
+
+#endif /* _SYS_ATOMICS_H */

libc/arch-x86/string/bcopy_wrapper.S

@@ -0,0 +1,45 @@
+/*
+Copyright (c) 2010, Intel Corporation
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+    * this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright notice,
+    * this list of conditions and the following disclaimer in the documentation
+    * and/or other materials provided with the distribution.
+
+    * Neither the name of Intel Corporation nor the names of its contributors
+    * may be used to endorse or promote products derived from this software
+    * without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+
+#if defined(USE_SSSE3)
+
+# include "cache_wrapper.S"
+# undef __i686
+# define MEMCPY	bcopy
+# define USE_AS_MEMMOVE
+# define USE_AS_BCOPY
+# include "ssse3-memcpy5.S"
+
+#else
+
+# include "bcopy.S"
+
+#endif

libc/arch-x86/string/bzero_wrapper.S

@@ -0,0 +1,43 @@
+/*
+Copyright (c) 2010, Intel Corporation
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+    * this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright notice,
+    * this list of conditions and the following disclaimer in the documentation
+    * and/or other materials provided with the distribution.
+
+    * Neither the name of Intel Corporation nor the names of its contributors
+    * may be used to endorse or promote products derived from this software
+    * without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#if defined(USE_SSE2)
+
+# include "cache_wrapper.S"
+# undef __i686
+# define USE_AS_BZERO
+# define sse2_memset5_atom bzero
+# include "sse2-memset5-atom.S"
+
+#else
+
+# include "bzero.S"
+
+#endif

libc/arch-x86/string/cache_wrapper.S

@@ -0,0 +1,35 @@
+/*
+Copyright (c) 2010, Intel Corporation
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+    * this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright notice,
+    * this list of conditions and the following disclaimer in the documentation
+    * and/or other materials provided with the distribution.
+
+    * Neither the name of Intel Corporation nor the names of its contributors
+    * may be used to endorse or promote products derived from this software
+    * without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 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.
+*/
+
+/* Values are optimized for Atom */
+#define SHARED_CACHE_SIZE	(512*1024)			/* Atom L2 Cache */
+#define DATA_CACHE_SIZE		(24*1024)			/* Atom L1 Data Cache */
+#define SHARED_CACHE_SIZE_HALF	(SHARED_CACHE_SIZE / 2)
+#define DATA_CACHE_SIZE_HALF	(DATA_CACHE_SIZE / 2)

libc/arch-x86/string/memcmp_wrapper.S

@@ -0,0 +1,40 @@
+/*
+Copyright (c) 2010, Intel Corporation
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+    * this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright notice,
+    * this list of conditions and the following disclaimer in the documentation
+    * and/or other materials provided with the distribution.
+
+    * Neither the name of Intel Corporation nor the names of its contributors
+    * may be used to endorse or promote products derived from this software
+    * without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#if defined(USE_SSSE3)
+
+# define MEMCMP memcmp
+# include "ssse3-memcmp3-new.S"
+
+#else
+
+# include "memcmp.S"
+
+#endif

libc/arch-x86/string/memcpy_wrapper.S

@@ -0,0 +1,43 @@
+/*
+Copyright (c) 2010, Intel Corporation
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+    * this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright notice,
+    * this list of conditions and the following disclaimer in the documentation
+    * and/or other materials provided with the distribution.
+
+    * Neither the name of Intel Corporation nor the names of its contributors
+    * may be used to endorse or promote products derived from this software
+    * without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#if defined(USE_SSSE3)
+
+# include "cache_wrapper.S"
+# undef __i686
+# define MEMCPY	memcpy
+# define USE_AS_MEMMOVE
+# include "ssse3-memcpy5.S"
+
+#else
+
+# include "memcpy.S"
+
+#endif

libc/arch-x86/string/memmove_wrapper.S

@@ -0,0 +1,43 @@
+/*
+Copyright (c) 2010, Intel Corporation
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+    * this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright notice,
+    * this list of conditions and the following disclaimer in the documentation
+    * and/or other materials provided with the distribution.
+
+    * Neither the name of Intel Corporation nor the names of its contributors
+    * may be used to endorse or promote products derived from this software
+    * without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#if defined(USE_SSSE3)
+
+# include "cache_wrapper.S"
+# undef __i686
+# define MEMCPY memmove
+# define USE_AS_MEMMOVE
+# include "ssse3-memcpy5.S"
+
+#else
+
+# include "memmove.S"
+
+#endif

libc/arch-x86/string/memset_wrapper.S

@@ -0,0 +1,42 @@
+/*
+Copyright (c) 2010, Intel Corporation
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+    * this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright notice,
+    * this list of conditions and the following disclaimer in the documentation
+    * and/or other materials provided with the distribution.
+
+    * Neither the name of Intel Corporation nor the names of its contributors
+    * may be used to endorse or promote products derived from this software
+    * without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#if defined(USE_SSE2)
+
+# include "cache_wrapper.S"
+# undef __i686
+# define sse2_memset5_atom memset
+# include "sse2-memset5-atom.S"
+
+#else
+
+# include "memset.S"
+
+#endif

libc/arch-x86/string/sse2-memset5-atom.S

@@ -0,0 +1,914 @@
+/*
+Copyright (c) 2010, Intel Corporation
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+    * this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright notice,
+    * this list of conditions and the following disclaimer in the documentation
+    * and/or other materials provided with the distribution.
+
+    * Neither the name of Intel Corporation nor the names of its contributors
+    * may be used to endorse or promote products derived from this software
+    * without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 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 L
+# define L(label)	.L##label
+#endif
+
+#ifndef ALIGN
+# define ALIGN(n)	.p2align n
+#endif
+
+#ifndef cfi_startproc
+# define cfi_startproc			.cfi_startproc
+#endif
+
+#ifndef cfi_endproc
+# define cfi_endproc			.cfi_endproc
+#endif
+
+#ifndef cfi_rel_offset
+# define cfi_rel_offset(reg, off)	.cfi_rel_offset reg, off
+#endif
+
+#ifndef cfi_restore
+# define cfi_restore(reg)		.cfi_restore reg
+#endif
+
+#ifndef cfi_adjust_cfa_offset
+# define cfi_adjust_cfa_offset(off)	.cfi_adjust_cfa_offset off
+#endif
+
+#ifndef ENTRY
+# define ENTRY(name)			\
+	.type name,  @function; 	\
+	.globl name;			\
+	.p2align 4;			\
+name:					\
+	cfi_startproc
+#endif
+
+#ifndef END
+# define END(name)			\
+	cfi_endproc;			\
+	.size name, .-name
+#endif
+
+#define CFI_PUSH(REG)						\
+  cfi_adjust_cfa_offset (4);					\
+  cfi_rel_offset (REG, 0)
+
+#define CFI_POP(REG)						\
+  cfi_adjust_cfa_offset (-4);					\
+  cfi_restore (REG)
+
+#define PUSH(REG)	pushl REG; CFI_PUSH (REG)
+#define POP(REG)	popl REG; CFI_POP (REG)
+
+#ifdef USE_AS_BZERO
+# define DEST		PARMS
+# define LEN		DEST+4
+# define SETRTNVAL
+#else
+# define DEST		PARMS
+# define CHR		DEST+4
+# define LEN		CHR+4
+# define SETRTNVAL	movl DEST(%esp), %eax
+#endif
+
+#ifdef SHARED
+# define ENTRANCE	PUSH (%ebx);
+# define RETURN_END	POP (%ebx); ret
+# define RETURN		RETURN_END; CFI_PUSH (%ebx)
+# define PARMS		8		/* Preserve EBX.  */
+# define JMPTBL(I, B)	I - B
+
+/* Load an entry in a jump table into EBX and branch to it.  TABLE is a
+   jump table with relative offsets.   */
+# define BRANCH_TO_JMPTBL_ENTRY(TABLE)				\
+    /* We first load PC into EBX.  */				\
+    call	__i686.get_pc_thunk.bx;				\
+    /* Get the address of the jump table.  */			\
+    add		$(TABLE - .), %ebx;				\
+    /* Get the entry and convert the relative offset to the	\
+       absolute address.  */					\
+    add		(%ebx,%ecx,4), %ebx;				\
+    add		%ecx, %edx;					\
+    /* We loaded the jump table and adjuested EDX. Go.  */	\
+    jmp		*%ebx
+
+	.section	.gnu.linkonce.t.__i686.get_pc_thunk.bx,"ax",@progbits
+	.globl	__i686.get_pc_thunk.bx
+	.hidden	__i686.get_pc_thunk.bx
+	ALIGN (4)
+	.type	__i686.get_pc_thunk.bx,@function
+__i686.get_pc_thunk.bx:
+	movl	(%esp), %ebx
+	ret
+#else
+# define ENTRANCE
+# define RETURN_END	ret
+# define RETURN		RETURN_END
+# define PARMS		4
+# define JMPTBL(I, B)	I
+
+/* Branch to an entry in a jump table.  TABLE is a jump table with
+   absolute offsets.  */
+# define BRANCH_TO_JMPTBL_ENTRY(TABLE)				\
+    add		%ecx, %edx;					\
+    jmp		*TABLE(,%ecx,4)
+#endif
+
+	.section .text.sse2,"ax",@progbits
+	ALIGN (4)
+ENTRY (sse2_memset5_atom)
+	ENTRANCE
+
+	movl	LEN(%esp), %ecx
+#ifdef USE_AS_BZERO
+	xor	%eax, %eax
+#else
+	movzbl	CHR(%esp), %eax
+	movb	%al, %ah
+	/* Fill the whole EAX with pattern.  */
+	movl	%eax, %edx
+	shl	$16, %eax
+	or	%edx, %eax
+#endif
+	movl	DEST(%esp), %edx
+	cmp	$32, %ecx
+	jae	L(32bytesormore)
+
+L(write_less32bytes):
+	BRANCH_TO_JMPTBL_ENTRY (L(table_less_32bytes))
+
+
+	.pushsection .rodata.sse2,"a",@progbits
+	ALIGN (2)
+L(table_less_32bytes):
+	.int	JMPTBL (L(write_0bytes), L(table_less_32bytes))
+	.int	JMPTBL (L(write_1bytes), L(table_less_32bytes))
+	.int	JMPTBL (L(write_2bytes), L(table_less_32bytes))
+	.int	JMPTBL (L(write_3bytes), L(table_less_32bytes))
+	.int	JMPTBL (L(write_4bytes), L(table_less_32bytes))
+	.int	JMPTBL (L(write_5bytes), L(table_less_32bytes))
+	.int	JMPTBL (L(write_6bytes), L(table_less_32bytes))
+	.int	JMPTBL (L(write_7bytes), L(table_less_32bytes))
+	.int	JMPTBL (L(write_8bytes), L(table_less_32bytes))
+	.int	JMPTBL (L(write_9bytes), L(table_less_32bytes))
+	.int	JMPTBL (L(write_10bytes), L(table_less_32bytes))
+	.int	JMPTBL (L(write_11bytes), L(table_less_32bytes))
+	.int	JMPTBL (L(write_12bytes), L(table_less_32bytes))
+	.int	JMPTBL (L(write_13bytes), L(table_less_32bytes))
+	.int	JMPTBL (L(write_14bytes), L(table_less_32bytes))
+	.int	JMPTBL (L(write_15bytes), L(table_less_32bytes))
+	.int	JMPTBL (L(write_16bytes), L(table_less_32bytes))
+	.int	JMPTBL (L(write_17bytes), L(table_less_32bytes))
+	.int	JMPTBL (L(write_18bytes), L(table_less_32bytes))
+	.int	JMPTBL (L(write_19bytes), L(table_less_32bytes))
+	.int	JMPTBL (L(write_20bytes), L(table_less_32bytes))
+	.int	JMPTBL (L(write_21bytes), L(table_less_32bytes))
+	.int	JMPTBL (L(write_22bytes), L(table_less_32bytes))
+	.int	JMPTBL (L(write_23bytes), L(table_less_32bytes))
+	.int	JMPTBL (L(write_24bytes), L(table_less_32bytes))
+	.int	JMPTBL (L(write_25bytes), L(table_less_32bytes))
+	.int	JMPTBL (L(write_26bytes), L(table_less_32bytes))
+	.int	JMPTBL (L(write_27bytes), L(table_less_32bytes))
+	.int	JMPTBL (L(write_28bytes), L(table_less_32bytes))
+	.int	JMPTBL (L(write_29bytes), L(table_less_32bytes))
+	.int	JMPTBL (L(write_30bytes), L(table_less_32bytes))
+	.int	JMPTBL (L(write_31bytes), L(table_less_32bytes))
+	.popsection
+
+	ALIGN (4)
+L(write_28bytes):
+	movl	%eax, -28(%edx)
+L(write_24bytes):
+	movl	%eax, -24(%edx)
+L(write_20bytes):
+	movl	%eax, -20(%edx)
+L(write_16bytes):
+	movl	%eax, -16(%edx)
+L(write_12bytes):
+	movl	%eax, -12(%edx)
+L(write_8bytes):
+	movl	%eax, -8(%edx)
+L(write_4bytes):
+	movl	%eax, -4(%edx)
+L(write_0bytes):
+	SETRTNVAL
+	RETURN
+
+	ALIGN (4)
+L(write_29bytes):
+	movl	%eax, -29(%edx)
+L(write_25bytes):
+	movl	%eax, -25(%edx)
+L(write_21bytes):
+	movl	%eax, -21(%edx)
+L(write_17bytes):
+	movl	%eax, -17(%edx)
+L(write_13bytes):
+	movl	%eax, -13(%edx)
+L(write_9bytes):
+	movl	%eax, -9(%edx)
+L(write_5bytes):
+	movl	%eax, -5(%edx)
+L(write_1bytes):
+	movb	%al, -1(%edx)
+	SETRTNVAL
+	RETURN
+
+	ALIGN (4)
+L(write_30bytes):
+	movl	%eax, -30(%edx)
+L(write_26bytes):
+	movl	%eax, -26(%edx)
+L(write_22bytes):
+	movl	%eax, -22(%edx)
+L(write_18bytes):
+	movl	%eax, -18(%edx)
+L(write_14bytes):
+	movl	%eax, -14(%edx)
+L(write_10bytes):
+	movl	%eax, -10(%edx)
+L(write_6bytes):
+	movl	%eax, -6(%edx)
+L(write_2bytes):
+	movw	%ax, -2(%edx)
+	SETRTNVAL
+	RETURN
+
+	ALIGN (4)
+L(write_31bytes):
+	movl	%eax, -31(%edx)
+L(write_27bytes):
+	movl	%eax, -27(%edx)
+L(write_23bytes):
+	movl	%eax, -23(%edx)
+L(write_19bytes):
+	movl	%eax, -19(%edx)
+L(write_15bytes):
+	movl	%eax, -15(%edx)
+L(write_11bytes):
+	movl	%eax, -11(%edx)
+L(write_7bytes):
+	movl	%eax, -7(%edx)
+L(write_3bytes):
+	movw	%ax, -3(%edx)
+	movb	%al, -1(%edx)
+	SETRTNVAL
+	RETURN
+
+	ALIGN (4)
+/* ECX > 32 and EDX is 4 byte aligned.  */
+L(32bytesormore):
+	/* Fill xmm0 with the pattern.  */
+#ifdef USE_AS_BZERO
+	pxor	%xmm0, %xmm0
+#else
+	movd	%eax, %xmm0
+	pshufd	$0, %xmm0, %xmm0
+#endif
+	testl	$0xf, %edx
+	jz	L(aligned_16)
+/* ECX > 32 and EDX is not 16 byte aligned.  */
+L(not_aligned_16):
+	movdqu	%xmm0, (%edx)
+	movl	%edx, %eax
+	and	$-16, %edx
+	add	$16, %edx
+	sub	%edx, %eax
+	add	%eax, %ecx
+	movd	%xmm0, %eax
+
+	ALIGN (4)
+L(aligned_16):
+	cmp	$128, %ecx
+	jae	L(128bytesormore)
+
+L(aligned_16_less128bytes):
+	BRANCH_TO_JMPTBL_ENTRY (L(table_16_128bytes))
+
+	ALIGN (4)
+L(128bytesormore):
+#ifdef SHARED_CACHE_SIZE
+	PUSH (%ebx)
+	mov	$SHARED_CACHE_SIZE, %ebx
+#else
+# ifdef SHARED
+	call	__i686.get_pc_thunk.bx
+	add	$_GLOBAL_OFFSET_TABLE_, %ebx
+	mov	__x86_shared_cache_size@GOTOFF(%ebx), %ebx
+# else
+	PUSH (%ebx)
+	mov	__x86_shared_cache_size, %ebx
+# endif
+#endif
+	cmp	%ebx, %ecx
+	jae	L(128bytesormore_nt_start)
+
+
+#ifdef DATA_CACHE_SIZE
+	POP (%ebx)
+# define RESTORE_EBX_STATE CFI_PUSH (%ebx)
+	cmp	$DATA_CACHE_SIZE, %ecx
+#else
+# ifdef SHARED
+#  define RESTORE_EBX_STATE
+	call	__i686.get_pc_thunk.bx
+	add	$_GLOBAL_OFFSET_TABLE_, %ebx
+	cmp	__x86_data_cache_size@GOTOFF(%ebx), %ecx
+# else
+	POP (%ebx)
+#  define RESTORE_EBX_STATE CFI_PUSH (%ebx)
+	cmp	__x86_data_cache_size, %ecx
+# endif
+#endif
+
+	jae	L(128bytes_L2_normal)
+	subl	$128, %ecx
+L(128bytesormore_normal):
+	sub	$128, %ecx
+	movdqa	%xmm0, (%edx)
+	movdqa	%xmm0, 0x10(%edx)
+	movdqa	%xmm0, 0x20(%edx)
+	movdqa	%xmm0, 0x30(%edx)
+	movdqa	%xmm0, 0x40(%edx)
+	movdqa	%xmm0, 0x50(%edx)
+	movdqa	%xmm0, 0x60(%edx)
+	movdqa	%xmm0, 0x70(%edx)
+	lea	128(%edx), %edx
+	jb	L(128bytesless_normal)
+
+
+	sub	$128, %ecx
+	movdqa	%xmm0, (%edx)
+	movdqa	%xmm0, 0x10(%edx)
+	movdqa	%xmm0, 0x20(%edx)
+	movdqa	%xmm0, 0x30(%edx)
+	movdqa	%xmm0, 0x40(%edx)
+	movdqa	%xmm0, 0x50(%edx)
+	movdqa	%xmm0, 0x60(%edx)
+	movdqa	%xmm0, 0x70(%edx)
+	lea	128(%edx), %edx
+	jae	L(128bytesormore_normal)
+
+L(128bytesless_normal):
+	add	$128, %ecx
+	BRANCH_TO_JMPTBL_ENTRY (L(table_16_128bytes))
+
+	ALIGN (4)
+L(128bytes_L2_normal):
+	prefetcht0	0x380(%edx)
+	prefetcht0	0x3c0(%edx)
+	sub	$128, %ecx
+	movdqa	%xmm0, (%edx)
+	movaps	%xmm0, 0x10(%edx)
+	movaps	%xmm0, 0x20(%edx)
+	movaps	%xmm0, 0x30(%edx)
+	movaps	%xmm0, 0x40(%edx)
+	movaps	%xmm0, 0x50(%edx)
+	movaps	%xmm0, 0x60(%edx)
+	movaps	%xmm0, 0x70(%edx)
+	add	$128, %edx
+	cmp	$128, %ecx
+	jae	L(128bytes_L2_normal)
+
+L(128bytesless_L2_normal):
+	BRANCH_TO_JMPTBL_ENTRY (L(table_16_128bytes))
+
+	RESTORE_EBX_STATE
+L(128bytesormore_nt_start):
+	sub	%ebx, %ecx
+	mov	%ebx, %eax
+	and	$0x7f, %eax
+	add	%eax, %ecx
+	movd	%xmm0, %eax
+	ALIGN (4)
+L(128bytesormore_shared_cache_loop):
+	prefetcht0	0x3c0(%edx)
+	prefetcht0	0x380(%edx)
+	sub	$0x80, %ebx
+	movdqa	%xmm0, (%edx)
+	movdqa	%xmm0, 0x10(%edx)
+	movdqa	%xmm0, 0x20(%edx)
+	movdqa	%xmm0, 0x30(%edx)
+	movdqa	%xmm0, 0x40(%edx)
+	movdqa	%xmm0, 0x50(%edx)
+	movdqa	%xmm0, 0x60(%edx)
+	movdqa	%xmm0, 0x70(%edx)
+	add	$0x80, %edx
+	cmp	$0x80, %ebx
+	jae	L(128bytesormore_shared_cache_loop)
+	cmp	$0x80, %ecx
+	jb	L(shared_cache_loop_end)
+	ALIGN (4)
+L(128bytesormore_nt):
+	sub	$0x80, %ecx
+	movntdq	%xmm0, (%edx)
+	movntdq	%xmm0, 0x10(%edx)
+	movntdq	%xmm0, 0x20(%edx)
+	movntdq	%xmm0, 0x30(%edx)
+	movntdq	%xmm0, 0x40(%edx)
+	movntdq	%xmm0, 0x50(%edx)
+	movntdq	%xmm0, 0x60(%edx)
+	movntdq	%xmm0, 0x70(%edx)
+	add	$0x80, %edx
+	cmp	$0x80, %ecx
+	jae	L(128bytesormore_nt)
+	sfence
+L(shared_cache_loop_end):
+#if defined DATA_CACHE_SIZE || !defined SHARED
+	POP (%ebx)
+#endif
+	BRANCH_TO_JMPTBL_ENTRY (L(table_16_128bytes))
+
+
+	.pushsection .rodata.sse2,"a",@progbits
+	ALIGN (2)
+L(table_16_128bytes):
+	.int	JMPTBL (L(aligned_16_0bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_1bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_2bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_3bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_4bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_5bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_6bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_7bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_8bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_9bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_10bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_11bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_12bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_13bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_14bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_15bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_16bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_17bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_18bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_19bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_20bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_21bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_22bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_23bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_24bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_25bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_26bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_27bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_28bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_29bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_30bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_31bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_32bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_33bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_34bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_35bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_36bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_37bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_38bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_39bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_40bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_41bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_42bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_43bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_44bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_45bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_46bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_47bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_48bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_49bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_50bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_51bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_52bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_53bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_54bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_55bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_56bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_57bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_58bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_59bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_60bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_61bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_62bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_63bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_64bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_65bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_66bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_67bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_68bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_69bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_70bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_71bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_72bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_73bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_74bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_75bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_76bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_77bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_78bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_79bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_80bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_81bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_82bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_83bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_84bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_85bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_86bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_87bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_88bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_89bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_90bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_91bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_92bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_93bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_94bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_95bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_96bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_97bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_98bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_99bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_100bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_101bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_102bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_103bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_104bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_105bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_106bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_107bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_108bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_109bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_110bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_111bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_112bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_113bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_114bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_115bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_116bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_117bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_118bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_119bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_120bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_121bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_122bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_123bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_124bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_125bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_126bytes), L(table_16_128bytes))
+	.int	JMPTBL (L(aligned_16_127bytes), L(table_16_128bytes))
+	.popsection
+
+	ALIGN (4)
+L(aligned_16_112bytes):
+	movdqa	%xmm0, -112(%edx)
+L(aligned_16_96bytes):
+	movdqa	%xmm0, -96(%edx)
+L(aligned_16_80bytes):
+	movdqa	%xmm0, -80(%edx)
+L(aligned_16_64bytes):
+	movdqa	%xmm0, -64(%edx)
+L(aligned_16_48bytes):
+	movdqa	%xmm0, -48(%edx)
+L(aligned_16_32bytes):
+	movdqa	%xmm0, -32(%edx)
+L(aligned_16_16bytes):
+	movdqa	%xmm0, -16(%edx)
+L(aligned_16_0bytes):
+	SETRTNVAL
+	RETURN
+
+	ALIGN (4)
+L(aligned_16_113bytes):
+	movdqa	%xmm0, -113(%edx)
+L(aligned_16_97bytes):
+	movdqa	%xmm0, -97(%edx)
+L(aligned_16_81bytes):
+	movdqa	%xmm0, -81(%edx)
+L(aligned_16_65bytes):
+	movdqa	%xmm0, -65(%edx)
+L(aligned_16_49bytes):
+	movdqa	%xmm0, -49(%edx)
+L(aligned_16_33bytes):
+	movdqa	%xmm0, -33(%edx)
+L(aligned_16_17bytes):
+	movdqa	%xmm0, -17(%edx)
+L(aligned_16_1bytes):
+	movb	%al, -1(%edx)
+	SETRTNVAL
+	RETURN
+
+	ALIGN (4)
+L(aligned_16_114bytes):
+	movdqa	%xmm0, -114(%edx)
+L(aligned_16_98bytes):
+	movdqa	%xmm0, -98(%edx)
+L(aligned_16_82bytes):
+	movdqa	%xmm0, -82(%edx)
+L(aligned_16_66bytes):
+	movdqa	%xmm0, -66(%edx)
+L(aligned_16_50bytes):
+	movdqa	%xmm0, -50(%edx)
+L(aligned_16_34bytes):
+	movdqa	%xmm0, -34(%edx)
+L(aligned_16_18bytes):
+	movdqa	%xmm0, -18(%edx)
+L(aligned_16_2bytes):
+	movw	%ax, -2(%edx)
+	SETRTNVAL
+	RETURN
+
+	ALIGN (4)
+L(aligned_16_115bytes):
+	movdqa	%xmm0, -115(%edx)
+L(aligned_16_99bytes):
+	movdqa	%xmm0, -99(%edx)
+L(aligned_16_83bytes):
+	movdqa	%xmm0, -83(%edx)
+L(aligned_16_67bytes):
+	movdqa	%xmm0, -67(%edx)
+L(aligned_16_51bytes):
+	movdqa	%xmm0, -51(%edx)
+L(aligned_16_35bytes):
+	movdqa	%xmm0, -35(%edx)
+L(aligned_16_19bytes):
+	movdqa	%xmm0, -19(%edx)
+L(aligned_16_3bytes):
+	movw	%ax, -3(%edx)
+	movb	%al, -1(%edx)
+	SETRTNVAL
+	RETURN
+
+	ALIGN (4)
+L(aligned_16_116bytes):
+	movdqa	%xmm0, -116(%edx)
+L(aligned_16_100bytes):
+	movdqa	%xmm0, -100(%edx)
+L(aligned_16_84bytes):
+	movdqa	%xmm0, -84(%edx)
+L(aligned_16_68bytes):
+	movdqa	%xmm0, -68(%edx)
+L(aligned_16_52bytes):
+	movdqa	%xmm0, -52(%edx)
+L(aligned_16_36bytes):
+	movdqa	%xmm0, -36(%edx)
+L(aligned_16_20bytes):
+	movdqa	%xmm0, -20(%edx)
+L(aligned_16_4bytes):
+	movl	%eax, -4(%edx)
+	SETRTNVAL
+	RETURN
+
+	ALIGN (4)
+L(aligned_16_117bytes):
+	movdqa	%xmm0, -117(%edx)
+L(aligned_16_101bytes):
+	movdqa	%xmm0, -101(%edx)
+L(aligned_16_85bytes):
+	movdqa	%xmm0, -85(%edx)
+L(aligned_16_69bytes):
+	movdqa	%xmm0, -69(%edx)
+L(aligned_16_53bytes):
+	movdqa	%xmm0, -53(%edx)
+L(aligned_16_37bytes):
+	movdqa	%xmm0, -37(%edx)
+L(aligned_16_21bytes):
+	movdqa	%xmm0, -21(%edx)
+L(aligned_16_5bytes):
+	movl	%eax, -5(%edx)
+	movb	%al, -1(%edx)
+	SETRTNVAL
+	RETURN
+
+	ALIGN (4)
+L(aligned_16_118bytes):
+	movdqa	%xmm0, -118(%edx)
+L(aligned_16_102bytes):
+	movdqa	%xmm0, -102(%edx)
+L(aligned_16_86bytes):
+	movdqa	%xmm0, -86(%edx)
+L(aligned_16_70bytes):
+	movdqa	%xmm0, -70(%edx)
+L(aligned_16_54bytes):
+	movdqa	%xmm0, -54(%edx)
+L(aligned_16_38bytes):
+	movdqa	%xmm0, -38(%edx)
+L(aligned_16_22bytes):
+	movdqa	%xmm0, -22(%edx)
+L(aligned_16_6bytes):
+	movl	%eax, -6(%edx)
+	movw	%ax, -2(%edx)
+	SETRTNVAL
+	RETURN
+
+	ALIGN (4)
+L(aligned_16_119bytes):
+	movdqa	%xmm0, -119(%edx)
+L(aligned_16_103bytes):
+	movdqa	%xmm0, -103(%edx)
+L(aligned_16_87bytes):
+	movdqa	%xmm0, -87(%edx)
+L(aligned_16_71bytes):
+	movdqa	%xmm0, -71(%edx)
+L(aligned_16_55bytes):
+	movdqa	%xmm0, -55(%edx)
+L(aligned_16_39bytes):
+	movdqa	%xmm0, -39(%edx)
+L(aligned_16_23bytes):
+	movdqa	%xmm0, -23(%edx)
+L(aligned_16_7bytes):
+	movl	%eax, -7(%edx)
+	movw	%ax, -3(%edx)
+	movb	%al, -1(%edx)
+	SETRTNVAL
+	RETURN
+
+	ALIGN (4)
+L(aligned_16_120bytes):
+	movdqa	%xmm0, -120(%edx)
+L(aligned_16_104bytes):
+	movdqa	%xmm0, -104(%edx)
+L(aligned_16_88bytes):
+	movdqa	%xmm0, -88(%edx)
+L(aligned_16_72bytes):
+	movdqa	%xmm0, -72(%edx)
+L(aligned_16_56bytes):
+	movdqa	%xmm0, -56(%edx)
+L(aligned_16_40bytes):
+	movdqa	%xmm0, -40(%edx)
+L(aligned_16_24bytes):
+	movdqa	%xmm0, -24(%edx)
+L(aligned_16_8bytes):
+	movq	%xmm0, -8(%edx)
+	SETRTNVAL
+	RETURN
+
+	ALIGN (4)
+L(aligned_16_121bytes):
+	movdqa	%xmm0, -121(%edx)
+L(aligned_16_105bytes):
+	movdqa	%xmm0, -105(%edx)
+L(aligned_16_89bytes):
+	movdqa	%xmm0, -89(%edx)
+L(aligned_16_73bytes):
+	movdqa	%xmm0, -73(%edx)
+L(aligned_16_57bytes):
+	movdqa	%xmm0, -57(%edx)
+L(aligned_16_41bytes):
+	movdqa	%xmm0, -41(%edx)
+L(aligned_16_25bytes):
+	movdqa	%xmm0, -25(%edx)
+L(aligned_16_9bytes):
+	movq	%xmm0, -9(%edx)
+	movb	%al, -1(%edx)
+	SETRTNVAL
+	RETURN
+
+	ALIGN (4)
+L(aligned_16_122bytes):
+	movdqa	%xmm0, -122(%edx)
+L(aligned_16_106bytes):
+	movdqa	%xmm0, -106(%edx)
+L(aligned_16_90bytes):
+	movdqa	%xmm0, -90(%edx)
+L(aligned_16_74bytes):
+	movdqa	%xmm0, -74(%edx)
+L(aligned_16_58bytes):
+	movdqa	%xmm0, -58(%edx)
+L(aligned_16_42bytes):
+	movdqa	%xmm0, -42(%edx)
+L(aligned_16_26bytes):
+	movdqa	%xmm0, -26(%edx)
+L(aligned_16_10bytes):
+	movq	%xmm0, -10(%edx)
+	movw	%ax, -2(%edx)
+	SETRTNVAL
+	RETURN
+
+	ALIGN (4)
+L(aligned_16_123bytes):
+	movdqa	%xmm0, -123(%edx)
+L(aligned_16_107bytes):
+	movdqa	%xmm0, -107(%edx)
+L(aligned_16_91bytes):
+	movdqa	%xmm0, -91(%edx)
+L(aligned_16_75bytes):
+	movdqa	%xmm0, -75(%edx)
+L(aligned_16_59bytes):
+	movdqa	%xmm0, -59(%edx)
+L(aligned_16_43bytes):
+	movdqa	%xmm0, -43(%edx)
+L(aligned_16_27bytes):
+	movdqa	%xmm0, -27(%edx)
+L(aligned_16_11bytes):
+	movq	%xmm0, -11(%edx)
+	movw	%ax, -3(%edx)
+	movb	%al, -1(%edx)
+	SETRTNVAL
+	RETURN
+
+	ALIGN (4)
+L(aligned_16_124bytes):
+	movdqa	%xmm0, -124(%edx)
+L(aligned_16_108bytes):
+	movdqa	%xmm0, -108(%edx)
+L(aligned_16_92bytes):
+	movdqa	%xmm0, -92(%edx)
+L(aligned_16_76bytes):
+	movdqa	%xmm0, -76(%edx)
+L(aligned_16_60bytes):
+	movdqa	%xmm0, -60(%edx)
+L(aligned_16_44bytes):
+	movdqa	%xmm0, -44(%edx)
+L(aligned_16_28bytes):
+	movdqa	%xmm0, -28(%edx)
+L(aligned_16_12bytes):
+	movq	%xmm0, -12(%edx)
+	movl	%eax, -4(%edx)
+	SETRTNVAL
+	RETURN
+
+	ALIGN (4)
+L(aligned_16_125bytes):
+	movdqa	%xmm0, -125(%edx)
+L(aligned_16_109bytes):
+	movdqa	%xmm0, -109(%edx)
+L(aligned_16_93bytes):
+	movdqa	%xmm0, -93(%edx)
+L(aligned_16_77bytes):
+	movdqa	%xmm0, -77(%edx)
+L(aligned_16_61bytes):
+	movdqa	%xmm0, -61(%edx)
+L(aligned_16_45bytes):
+	movdqa	%xmm0, -45(%edx)
+L(aligned_16_29bytes):
+	movdqa	%xmm0, -29(%edx)
+L(aligned_16_13bytes):
+	movq	%xmm0, -13(%edx)
+	movl	%eax, -5(%edx)
+	movb	%al, -1(%edx)
+	SETRTNVAL
+	RETURN
+
+	ALIGN (4)
+L(aligned_16_126bytes):
+	movdqa	%xmm0, -126(%edx)
+L(aligned_16_110bytes):
+	movdqa	%xmm0, -110(%edx)
+L(aligned_16_94bytes):
+	movdqa	%xmm0, -94(%edx)
+L(aligned_16_78bytes):
+	movdqa	%xmm0, -78(%edx)
+L(aligned_16_62bytes):
+	movdqa	%xmm0, -62(%edx)
+L(aligned_16_46bytes):
+	movdqa	%xmm0, -46(%edx)
+L(aligned_16_30bytes):
+	movdqa	%xmm0, -30(%edx)
+L(aligned_16_14bytes):
+	movq	%xmm0, -14(%edx)
+	movl	%eax, -6(%edx)
+	movw	%ax, -2(%edx)
+	SETRTNVAL
+	RETURN
+
+	ALIGN (4)
+L(aligned_16_127bytes):
+	movdqa	%xmm0, -127(%edx)
+L(aligned_16_111bytes):
+	movdqa	%xmm0, -111(%edx)
+L(aligned_16_95bytes):
+	movdqa	%xmm0, -95(%edx)
+L(aligned_16_79bytes):
+	movdqa	%xmm0, -79(%edx)
+L(aligned_16_63bytes):
+	movdqa	%xmm0, -63(%edx)
+L(aligned_16_47bytes):
+	movdqa	%xmm0, -47(%edx)
+L(aligned_16_31bytes):
+	movdqa	%xmm0, -31(%edx)
+L(aligned_16_15bytes):
+	movq	%xmm0, -15(%edx)
+	movl	%eax, -7(%edx)
+	movw	%ax, -3(%edx)
+	movb	%al, -1(%edx)
+	SETRTNVAL
+	RETURN_END
+
+END (sse2_memset5_atom)

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

@@ -0,0 +1,369 @@
+#define STRLEN sse2_strlen_atom
+
+#ifndef L
+# define L(label)	.L##label
+#endif
+
+#ifndef cfi_startproc
+# define cfi_startproc			.cfi_startproc
+#endif
+
+#ifndef cfi_endproc
+# define cfi_endproc			.cfi_endproc
+#endif
+
+#ifndef cfi_rel_offset
+# define cfi_rel_offset(reg, off)	.cfi_rel_offset reg, off
+#endif
+
+#ifndef cfi_restore
+# define cfi_restore(reg)		.cfi_restore reg
+#endif
+
+#ifndef cfi_adjust_cfa_offset
+# define cfi_adjust_cfa_offset(off)	.cfi_adjust_cfa_offset off
+#endif
+
+#ifndef cfi_remember_state
+# define cfi_remember_state		.cfi_remember_state
+#endif
+
+#ifndef cfi_restore_state
+# define cfi_restore_state		.cfi_restore_state
+#endif
+
+#ifndef ENTRY
+# define ENTRY(name)			\
+	.type name,  @function; 	\
+	.globl name;			\
+	.p2align 4;			\
+name:					\
+	cfi_startproc
+#endif
+
+#ifndef END
+# define END(name)			\
+	cfi_endproc;			\
+	.size name, .-name
+#endif
+
+#define CFI_PUSH(REG)						\
+  cfi_adjust_cfa_offset (4);					\
+  cfi_rel_offset (REG, 0)
+
+#define CFI_POP(REG)						\
+  cfi_adjust_cfa_offset (-4);					\
+  cfi_restore (REG)
+
+#define PUSH(REG)	pushl REG; CFI_PUSH (REG)
+#define POP(REG)	popl REG; CFI_POP (REG)
+#define PARMS		4
+#define	STR		PARMS
+#define ENTRANCE
+#define RETURN		ret
+
+	.text
+ENTRY (STRLEN)
+	ENTRANCE
+	mov	STR(%esp), %edx
+	xor	%eax, %eax
+	cmpb	$0, (%edx)
+	jz	L(exit_tail0)
+	cmpb	$0, 1(%edx)
+	jz	L(exit_tail1)
+	cmpb	$0, 2(%edx)
+	jz	L(exit_tail2)
+	cmpb	$0, 3(%edx)
+	jz	L(exit_tail3)
+	cmpb	$0, 4(%edx)
+	jz	L(exit_tail4)
+	cmpb	$0, 5(%edx)
+	jz	L(exit_tail5)
+	cmpb	$0, 6(%edx)
+	jz	L(exit_tail6)
+	cmpb	$0, 7(%edx)
+	jz	L(exit_tail7)
+	cmpb	$0, 8(%edx)
+	jz	L(exit_tail8)
+	cmpb	$0, 9(%edx)
+	jz	L(exit_tail9)
+	cmpb	$0, 10(%edx)
+	jz	L(exit_tail10)
+	cmpb	$0, 11(%edx)
+	jz	L(exit_tail11)
+	cmpb	$0, 12(%edx)
+	jz	L(exit_tail12)
+	cmpb	$0, 13(%edx)
+	jz	L(exit_tail13)
+	cmpb	$0, 14(%edx)
+	jz	L(exit_tail14)
+	cmpb	$0, 15(%edx)
+	jz	L(exit_tail15)
+	pxor	%xmm0, %xmm0
+	mov	%edx, %eax
+	mov	%edx, %ecx
+	and	$-16, %eax
+	add	$16, %ecx
+	add	$16, %eax
+
+	pcmpeqb	(%eax), %xmm0
+	pmovmskb %xmm0, %edx
+	pxor	%xmm1, %xmm1
+	test	%edx, %edx
+	lea	16(%eax), %eax
+	jnz	L(exit)
+
+	pcmpeqb	(%eax), %xmm1
+	pmovmskb %xmm1, %edx
+	pxor	%xmm2, %xmm2
+	test	%edx, %edx
+	lea	16(%eax), %eax
+	jnz	L(exit)
+
+
+	pcmpeqb	(%eax), %xmm2
+	pmovmskb %xmm2, %edx
+	pxor	%xmm3, %xmm3
+	test	%edx, %edx
+	lea	16(%eax), %eax
+	jnz	L(exit)
+
+	pcmpeqb	(%eax), %xmm3
+	pmovmskb %xmm3, %edx
+	test	%edx, %edx
+	lea	16(%eax), %eax
+	jnz	L(exit)
+
+	pcmpeqb	(%eax), %xmm0
+	pmovmskb %xmm0, %edx
+	test	%edx, %edx
+	lea	16(%eax), %eax
+	jnz	L(exit)
+
+	pcmpeqb	(%eax), %xmm1
+	pmovmskb %xmm1, %edx
+	test	%edx, %edx
+	lea	16(%eax), %eax
+	jnz	L(exit)
+
+	pcmpeqb	(%eax), %xmm2
+	pmovmskb %xmm2, %edx
+	test	%edx, %edx
+	lea	16(%eax), %eax
+	jnz	L(exit)
+
+	pcmpeqb	(%eax), %xmm3
+	pmovmskb %xmm3, %edx
+	test	%edx, %edx
+	lea	16(%eax), %eax
+	jnz	L(exit)
+
+	pcmpeqb	(%eax), %xmm0
+	pmovmskb %xmm0, %edx
+	test	%edx, %edx
+	lea	16(%eax), %eax
+	jnz	L(exit)
+
+	pcmpeqb	(%eax), %xmm1
+	pmovmskb %xmm1, %edx
+	test	%edx, %edx
+	lea	16(%eax), %eax
+	jnz	L(exit)
+
+	pcmpeqb	(%eax), %xmm2
+	pmovmskb %xmm2, %edx
+	test	%edx, %edx
+	lea	16(%eax), %eax
+	jnz	L(exit)
+
+	pcmpeqb	(%eax), %xmm3
+	pmovmskb %xmm3, %edx
+	test	%edx, %edx
+	lea	16(%eax), %eax
+	jnz	L(exit)
+
+	pcmpeqb	(%eax), %xmm0
+	pmovmskb %xmm0, %edx
+	test	%edx, %edx
+	lea	16(%eax), %eax
+	jnz	L(exit)
+
+	pcmpeqb	(%eax), %xmm1
+	pmovmskb %xmm1, %edx
+	test	%edx, %edx
+	lea	16(%eax), %eax
+	jnz	L(exit)
+
+	pcmpeqb	(%eax), %xmm2
+	pmovmskb %xmm2, %edx
+	test	%edx, %edx
+	lea	16(%eax), %eax
+	jnz	L(exit)
+
+	pcmpeqb	(%eax), %xmm3
+	pmovmskb %xmm3, %edx
+	test	%edx, %edx
+	lea	16(%eax), %eax
+	jnz	L(exit)
+
+	and	$-0x40, %eax
+	PUSH (%esi)
+	PUSH (%edi)
+	PUSH (%ebx)
+	PUSH (%ebp)
+	xor	%ebp, %ebp
+L(aligned_64):
+	pcmpeqb	(%eax), %xmm0
+	pcmpeqb	16(%eax), %xmm1
+	pcmpeqb	32(%eax), %xmm2
+	pcmpeqb	48(%eax), %xmm3
+	pmovmskb %xmm0, %edx
+	pmovmskb %xmm1, %esi
+	pmovmskb %xmm2, %edi
+	pmovmskb %xmm3, %ebx
+	or	%edx, %ebp
+	or	%esi, %ebp
+	or	%edi, %ebp
+	or	%ebx, %ebp
+	lea	64(%eax), %eax
+	jz	L(aligned_64)
+L(48leave):
+	test	%edx, %edx
+	jnz	L(aligned_64_exit_16)
+	test	%esi, %esi
+	jnz	L(aligned_64_exit_32)
+	test	%edi, %edi
+	jnz	L(aligned_64_exit_48)
+	mov	%ebx, %edx
+	lea	(%eax), %eax
+	jmp	L(aligned_64_exit)
+L(aligned_64_exit_48):
+	lea	-16(%eax), %eax
+	mov	%edi, %edx
+	jmp	L(aligned_64_exit)
+L(aligned_64_exit_32):
+	lea	-32(%eax), %eax
+	mov	%esi, %edx
+	jmp	L(aligned_64_exit)
+L(aligned_64_exit_16):
+	lea	-48(%eax), %eax
+L(aligned_64_exit):
+	POP (%ebp)
+	POP (%ebx)
+	POP (%edi)
+	POP (%esi)
+L(exit):
+	sub	%ecx, %eax
+	test	%dl, %dl
+	jz	L(exit_high)
+	test	$0x01, %dl
+	jnz	L(exit_tail0)
+
+	test	$0x02, %dl
+	jnz	L(exit_tail1)
+
+	test	$0x04, %dl
+	jnz	L(exit_tail2)
+
+	test	$0x08, %dl
+	jnz	L(exit_tail3)
+
+	test	$0x10, %dl
+	jnz	L(exit_tail4)
+
+	test	$0x20, %dl
+	jnz	L(exit_tail5)
+
+	test	$0x40, %dl
+	jnz	L(exit_tail6)
+	add	$7, %eax
+L(exit_tail0):
+	RETURN
+
+L(exit_high):
+	add	$8, %eax
+	test	$0x01, %dh
+	jnz	L(exit_tail0)
+
+	test	$0x02, %dh
+	jnz	L(exit_tail1)
+
+	test	$0x04, %dh
+	jnz	L(exit_tail2)
+
+	test	$0x08, %dh
+	jnz	L(exit_tail3)
+
+	test	$0x10, %dh
+	jnz	L(exit_tail4)
+
+	test	$0x20, %dh
+	jnz	L(exit_tail5)
+
+	test	$0x40, %dh
+	jnz	L(exit_tail6)
+	add	$7, %eax
+	RETURN
+
+	.p2align 4
+L(exit_tail1):
+	add	$1, %eax
+	RETURN
+
+L(exit_tail2):
+	add	$2, %eax
+	RETURN
+
+L(exit_tail3):
+	add	$3, %eax
+	RETURN
+
+L(exit_tail4):
+	add	$4, %eax
+	RETURN
+
+L(exit_tail5):
+	add	$5, %eax
+	RETURN
+
+L(exit_tail6):
+	add	$6, %eax
+	RETURN
+
+L(exit_tail7):
+	add	$7, %eax
+	RETURN
+
+L(exit_tail8):
+	add	$8, %eax
+	RETURN
+
+L(exit_tail9):
+	add	$9, %eax
+	RETURN
+
+L(exit_tail10):
+	add	$10, %eax
+	RETURN
+
+L(exit_tail11):
+	add	$11, %eax
+	RETURN
+
+L(exit_tail12):
+	add	$12, %eax
+	RETURN
+
+L(exit_tail13):
+	add	$13, %eax
+	RETURN
+
+L(exit_tail14):
+	add	$14, %eax
+	RETURN
+
+L(exit_tail15):
+	add	$15, %eax
+	ret
+
+END (STRLEN)

libc/arch-x86/string/strcmp_wrapper.S

@@ -0,0 +1,40 @@
+/*
+Copyright (c) 2010, Intel Corporation
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+    * this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright notice,
+    * this list of conditions and the following disclaimer in the documentation
+    * and/or other materials provided with the distribution.
+
+    * Neither the name of Intel Corporation nor the names of its contributors
+    * may be used to endorse or promote products derived from this software
+    * without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#if defined(USE_SSSE3)
+
+# define ssse3_strcmp_latest strcmp
+# include "ssse3-strcmp-latest.S"
+
+#else
+
+# include "strcmp.S"
+
+#endif

libc/arch-x86/string/strlen_wrapper.S

@@ -0,0 +1,40 @@
+/*
+Copyright (c) 2010, Intel Corporation
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+    * this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright notice,
+    * this list of conditions and the following disclaimer in the documentation
+    * and/or other materials provided with the distribution.
+
+    * Neither the name of Intel Corporation nor the names of its contributors
+    * may be used to endorse or promote products derived from this software
+    * without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#if defined(USE_SSE2)
+
+# define sse2_strlen_atom strlen
+# include "sse2-strlen-atom.S"
+
+#else
+
+# include "strlen.S"
+
+#endif

libc/arch-x86/string/strncmp_wrapper.S

@@ -0,0 +1,42 @@
+/*
+Copyright (c) 2010, Intel Corporation
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+    * this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright notice,
+    * this list of conditions and the following disclaimer in the documentation
+    * and/or other materials provided with the distribution.
+
+    * Neither the name of Intel Corporation nor the names of its contributors
+    * may be used to endorse or promote products derived from this software
+    * without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#if defined(USE_SSSE3)
+
+# define USE_AS_STRNCMP
+# define ssse3_strcmp_latest strncmp
+# include "ssse3-strcmp-latest.S"
+
+#else
+
+# include "strncmp.S"
+
+#endif
+

libc/arch-x86/syscalls.mk

@@ -4,7 +4,7 @@ syscall_src += arch-x86/syscalls/_exit.S
 syscall_src += arch-x86/syscalls/_exit_thread.S
 syscall_src += arch-x86/syscalls/__fork.S
 syscall_src += arch-x86/syscalls/_waitpid.S
-syscall_src += arch-x86/syscalls/waitid.S
+syscall_src += arch-x86/syscalls/__waitid.S
 syscall_src += arch-x86/syscalls/__sys_clone.S
 syscall_src += arch-x86/syscalls/execve.S
 syscall_src += arch-x86/syscalls/__setuid.S
@@ -69,15 +69,17 @@ syscall_src += arch-x86/syscalls/flock.S
 syscall_src += arch-x86/syscalls/fchmod.S
 syscall_src += arch-x86/syscalls/dup.S
 syscall_src += arch-x86/syscalls/pipe.S
+syscall_src += arch-x86/syscalls/pipe2.S
 syscall_src += arch-x86/syscalls/dup2.S
 syscall_src += arch-x86/syscalls/select.S
 syscall_src += arch-x86/syscalls/ftruncate.S
 syscall_src += arch-x86/syscalls/getdents.S
 syscall_src += arch-x86/syscalls/fsync.S
+syscall_src += arch-x86/syscalls/fdatasync.S
 syscall_src += arch-x86/syscalls/fchown.S
 syscall_src += arch-x86/syscalls/sync.S
 syscall_src += arch-x86/syscalls/__fcntl64.S
-syscall_src += arch-x86/syscalls/fstatfs.S
+syscall_src += arch-x86/syscalls/__fstatfs64.S
 syscall_src += arch-x86/syscalls/sendfile.S
 syscall_src += arch-x86/syscalls/fstatat.S
 syscall_src += arch-x86/syscalls/mkdirat.S
@@ -164,6 +166,7 @@ syscall_src += arch-x86/syscalls/__syslog.S
 syscall_src += arch-x86/syscalls/init_module.S
 syscall_src += arch-x86/syscalls/delete_module.S
 syscall_src += arch-x86/syscalls/klogctl.S
+syscall_src += arch-x86/syscalls/sysinfo.S
 syscall_src += arch-x86/syscalls/futex.S
 syscall_src += arch-x86/syscalls/epoll_create.S
 syscall_src += arch-x86/syscalls/epoll_ctl.S
@@ -172,3 +175,4 @@ syscall_src += arch-x86/syscalls/inotify_init.S
 syscall_src += arch-x86/syscalls/inotify_add_watch.S
 syscall_src += arch-x86/syscalls/inotify_rm_watch.S
 syscall_src += arch-x86/syscalls/poll.S
+syscall_src += arch-x86/syscalls/eventfd.S

libc/arch-x86/syscalls/__fstatfs64.S

@@ -2,11 +2,11 @@
 #include <sys/linux-syscalls.h>
 
     .text
-    .type fstatfs, @function
-    .globl fstatfs
+    .type __fstatfs64, @function
+    .globl __fstatfs64
     .align 4
 
-fstatfs:
+__fstatfs64:
     pushl   %ebx
     pushl   %ecx
     pushl   %edx

libc/arch-x86/syscalls/__waitid.S

@@ -2,11 +2,11 @@
 #include <sys/linux-syscalls.h>
 
     .text
-    .type waitid, @function
-    .globl waitid
+    .type __waitid, @function
+    .globl __waitid
     .align 4
 
-waitid:
+__waitid:
     pushl   %ebx
     pushl   %ecx
     pushl   %edx

libc/arch-x86/syscalls/eventfd.S

@@ -0,0 +1,26 @@
+/* autogenerated by gensyscalls.py */
+#include <sys/linux-syscalls.h>
+
+    .text
+    .type eventfd, @function
+    .globl eventfd
+    .align 4
+
+eventfd:
+    pushl   %ebx
+    pushl   %ecx
+    mov     12(%esp), %ebx
+    mov     16(%esp), %ecx
+    movl    $__NR_eventfd2, %eax
+    int     $0x80
+    cmpl    $-129, %eax
+    jb      1f
+    negl    %eax
+    pushl   %eax
+    call    __set_errno
+    addl    $4, %esp
+    orl     $-1, %eax
+1:
+    popl    %ecx
+    popl    %ebx
+    ret

libc/arch-x86/syscalls/fdatasync.S

@@ -0,0 +1,23 @@
+/* autogenerated by gensyscalls.py */
+#include <sys/linux-syscalls.h>
+
+    .text
+    .type fdatasync, @function
+    .globl fdatasync
+    .align 4
+
+fdatasync:
+    pushl   %ebx
+    mov     8(%esp), %ebx
+    movl    $__NR_fdatasync, %eax
+    int     $0x80
+    cmpl    $-129, %eax
+    jb      1f
+    negl    %eax
+    pushl   %eax
+    call    __set_errno
+    addl    $4, %esp
+    orl     $-1, %eax
+1:
+    popl    %ebx
+    ret

libc/arch-x86/syscalls/pipe2.S

@@ -0,0 +1,26 @@
+/* autogenerated by gensyscalls.py */
+#include <sys/linux-syscalls.h>
+
+    .text
+    .type pipe2, @function
+    .globl pipe2
+    .align 4
+
+pipe2:
+    pushl   %ebx
+    pushl   %ecx
+    mov     12(%esp), %ebx
+    mov     16(%esp), %ecx
+    movl    $__NR_pipe2, %eax
+    int     $0x80
+    cmpl    $-129, %eax
+    jb      1f
+    negl    %eax
+    pushl   %eax
+    call    __set_errno
+    addl    $4, %esp
+    orl     $-1, %eax
+1:
+    popl    %ecx
+    popl    %ebx
+    ret

libc/arch-x86/syscalls/sysinfo.S

@@ -0,0 +1,23 @@
+/* autogenerated by gensyscalls.py */
+#include <sys/linux-syscalls.h>
+
+    .text
+    .type sysinfo, @function
+    .globl sysinfo
+    .align 4
+
+sysinfo:
+    pushl   %ebx
+    mov     8(%esp), %ebx
+    movl    $__NR_sysinfo, %eax
+    int     $0x80
+    cmpl    $-129, %eax
+    jb      1f
+    negl    %eax
+    pushl   %eax
+    call    __set_errno
+    addl    $4, %esp
+    orl     $-1, %eax
+1:
+    popl    %ebx
+    ret

libc/bionic/clearenv.c

@@ -26,14 +26,17 @@
  * SUCH DAMAGE.
  */
 
+#include <stddef.h>
+
 extern char** environ;
 
 int clearenv(void)
 {
-	char **P = environ;
-	int offset;
+    char **P = environ;
 
-	for (P = &environ[offset]; *P; ++P)
-		*P = 0;
-        return 0;
+    if (P != NULL) {
+        for (; *P; ++P)
+            *P = NULL;
+    }
+    return 0;
 }

libc/bionic/cpuacct.c

@@ -29,7 +29,7 @@
 #include <stdio.h>
 #include <errno.h>
 #include <sys/stat.h>
-//#include <sys/types.h>
+#include "cpuacct.h"
 
 int cpuacct_add(uid_t uid)
 {

libc/bionic/fork.c

@@ -27,6 +27,7 @@
  */
 #include <unistd.h>
 #include "pthread_internal.h"
+#include "cpuacct.h"
 
 extern int  __fork(void);
 

libc/bionic/fts.c

@@ -548,9 +548,9 @@ fts_build(FTS *sp, int type)
 	DIR *dirp;
 	void *oldaddr;
 	size_t len, maxlen;
-	int nitems, cderrno, descend, level, nlinks, nostat, doadjust;
+	int nitems, cderrno, descend, level, nlinks, nostat = 0, doadjust;
 	int saved_errno;
-	char *cp;
+	char *cp = NULL;
 
 	/* Set current node pointer. */
 	cur = sp->fts_cur;

libc/bionic/libc_init_common.c

@@ -84,3 +84,39 @@ void __libc_init_common(uintptr_t *elfdata)
     /* setup system properties - requires environment */
     __system_properties_init();
 }
+
+/* This function will be called during normal program termination
+ * to run the destructors that are listed in the .fini_array section
+ * of the executable, if any.
+ *
+ * 'fini_array' points to a list of function addresses. The first
+ * entry in the list has value -1, the last one has value 0.
+ */
+void __libc_fini(void* array)
+{
+    int count;
+    void** fini_array = array;
+    const size_t  minus1 = ~(size_t)0; /* ensure proper sign extension */
+
+    /* Sanity check - first entry must be -1 */
+    if (array == NULL || (size_t)fini_array[0] != minus1) {
+        return;
+    }
+
+    /* skip over it */
+    fini_array += 1;
+
+    /* Count the number of destructors. */
+    for (count = 0; fini_array[count] != NULL; count++);
+
+    /* Now call each destructor in reverse order. */
+    while (count > 0) {
+        void (*func)() = (void (*)) fini_array[--count];
+
+        /* Sanity check, any -1 in the list is ignored */
+        if ((size_t)func == minus1)
+            continue;
+
+        func();
+    }
+}

libc/bionic/libc_init_common.h

@@ -35,9 +35,12 @@ typedef struct
     void (**preinit_array)(void);
     void (**init_array)(void);
     void (**fini_array)(void);
+#ifndef __i386__
     void (**ctors_array)(void);
+#endif
 } structors_array_t;
 
 extern void __libc_init_common(uintptr_t *elfdata);
+extern void __libc_fini(void* finit_array);
 
 #endif

libc/bionic/libc_init_dynamic.c

@@ -57,9 +57,9 @@
  * This ensures that the function is called by the dynamic linker
  * as soon as the shared library is loaded.
  */
-void __attribute__((constructor)) __libc_prenit(void);
+void __attribute__((constructor)) __libc_preinit(void);
 
-void __libc_prenit(void)
+void __libc_preinit(void)
 {
     /* Read the ELF data pointer form a special slot of the
      * TLS area, then call __libc_init_common with it.
@@ -83,14 +83,19 @@ void __libc_prenit(void)
     malloc_debug_init();
 }
 
+/* This function is called from the executable's _start entry point
+ * (see arch-$ARCH/bionic/crtbegin_dynamic.S), which is itself
+ * called by the dynamic linker after it has loaded all shared
+ * libraries the executable depends on.
+ *
+ * Note that the dynamic linker has also run all constructors in the
+ * executable at this point.
+ */
 __noreturn void __libc_init(uintptr_t *elfdata,
                        void (*onexit)(void),
                        int (*slingshot)(int, char**, char**),
                        structors_array_t const * const structors)
 {
-    /* When we reach this point, all initializers have been already
-     * run by the dynamic linker, so ignore 'structors'.
-     */
     int     argc = (int)*elfdata;
     char**  argv = (char**)(elfdata + 1);
     char**  envp = argv + argc + 1;
@@ -99,5 +104,12 @@ __noreturn void __libc_init(uintptr_t *elfdata,
      * do never use it.  Therefore, we ignore it.
      */
 
+    /* The executable may have its own destructors listed in its .fini_array
+     * so we need to ensure that these are called when the program exits
+     * normally.
+     */
+    if (structors->fini_array)
+        __cxa_atexit(__libc_fini,structors->fini_array,NULL);
+
     exit(slingshot(argc, argv, envp));
 }

libc/bionic/libc_init_static.c

@@ -75,8 +75,10 @@ __noreturn void __libc_init(uintptr_t *elfdata,
     /* pre-init array. */
     call_array(structors->preinit_array);
 
+#ifndef __i386__
     /* .ctors section initializers, for non-arm-eabi ABIs */
     call_array(structors->ctors_array);
+#endif
 
     // call static constructors
     call_array(structors->init_array);
@@ -85,5 +87,12 @@ __noreturn void __libc_init(uintptr_t *elfdata,
     argv = (char**)(elfdata + 1);
     envp = argv + argc + 1;
 
+    /* The executable may have its own destructors listed in its .fini_array
+     * so we need to ensure that these are called when the program exits
+     * normally.
+     */
+    if (structors->fini_array)
+        __cxa_atexit(__libc_fini,structors->fini_array,NULL);
+
     exit(slingshot(argc, argv, envp));
 }

libc/bionic/logd_write.c

@@ -38,12 +38,17 @@
 #include <stdarg.h>
 #include <fcntl.h>
 
-#include <cutils/logger.h>
 #include "logd.h"
 
+/* should match system/core/include/cutils/logger.h */
+#define LOGGER_LOG_MAIN     "log/main"
+#define LOGGER_LOG_RADIO    "log/radio"
+#define LOGGER_LOG_EVENTS   "log/events"
+#define LOGGER_LOG_SYSTEM   "log/system"
+
 #include <pthread.h>
 
-#define LOG_BUF_SIZE	1024
+#define LOG_BUF_SIZE    1024
 
 typedef enum {
     LOG_ID_NONE = 0,
@@ -114,6 +119,8 @@ static int __write_to_log_init(log_id_t log_id, struct iovec *vec)
             (fd < 0) ? __write_to_log_null : __write_to_log_kernel;
         log_channels[log_id].fd = fd;
 
+        log_channels[log_id].fd = fd;
+
         pthread_mutex_unlock(&log_init_lock);
 
         return log_channels[log_id].logger(log_id, vec);

libc/bionic/malloc_debug_common.c

@@ -60,34 +60,43 @@ HashTable gHashTable;
 
 static int hash_entry_compare(const void* arg1, const void* arg2)
 {
+    int result;
+
     HashEntry* e1 = *(HashEntry**)arg1;
     HashEntry* e2 = *(HashEntry**)arg2;
 
-    size_t nbAlloc1 = e1->allocations;
-    size_t nbAlloc2 = e2->allocations;
-    size_t size1 = e1->size & ~SIZE_FLAG_MASK;
-    size_t size2 = e2->size & ~SIZE_FLAG_MASK;
-    size_t alloc1 = nbAlloc1 * size1;
-    size_t alloc2 = nbAlloc2 * size2;
-
-    // sort in descending order by:
-    // 1) total size
-    // 2) number of allocations
-    //
-    // This is used for sorting, not determination of equality, so we don't
-    // need to compare the bit flags.
-    int result;
-    if (alloc1 > alloc2) {
+    // if one or both arg pointers are null, deal gracefully
+    if (e1 == NULL) {
+        result = (e2 == NULL) ? 0 : 1;
+    } else if (e2 == NULL) {
         result = -1;
-    } else if (alloc1 < alloc2) {
-        result = 1;
     } else {
-        if (nbAlloc1 > nbAlloc2) {
+        size_t nbAlloc1 = e1->allocations;
+        size_t nbAlloc2 = e2->allocations;
+        size_t size1 = e1->size & ~SIZE_FLAG_MASK;
+        size_t size2 = e2->size & ~SIZE_FLAG_MASK;
+        size_t alloc1 = nbAlloc1 * size1;
+        size_t alloc2 = nbAlloc2 * size2;
+
+        // sort in descending order by:
+        // 1) total size
+        // 2) number of allocations
+        //
+        // This is used for sorting, not determination of equality, so we don't
+        // need to compare the bit flags.
+        int result;
+        if (alloc1 > alloc2) {
             result = -1;
-        } else if (nbAlloc1 < nbAlloc2) {
+        } else if (alloc1 < alloc2) {
             result = 1;
         } else {
-            result = 0;
+            if (nbAlloc1 > nbAlloc2) {
+                result = -1;
+            } else if (nbAlloc1 < nbAlloc2) {
+                result = 1;
+            } else {
+                result = 0;
+            }
         }
     }
     return result;
@@ -149,7 +158,7 @@ void get_malloc_leak_info(uint8_t** info, size_t* overallSize,
 
     if (*info == NULL) {
         *overallSize = 0;
-        goto done;
+        goto out_nomem_info;
     }
 
     qsort((void*)list, gHashTable.count, sizeof(void*), hash_entry_compare);
@@ -161,8 +170,7 @@ void get_malloc_leak_info(uint8_t** info, size_t* overallSize,
         size_t entrySize = (sizeof(size_t) * 2) + (sizeof(intptr_t) * entry->numEntries);
         if (entrySize < *infoSize) {
             /* we're writing less than a full entry, clear out the rest */
-            /* TODO: only clear out the part we're not overwriting? */
-            memset(head, 0, *infoSize);
+            memset(head + entrySize, 0, *infoSize - entrySize);
         } else {
             /* make sure the amount we're copying doesn't exceed the limit */
             entrySize = *infoSize;
@@ -171,6 +179,7 @@ void get_malloc_leak_info(uint8_t** info, size_t* overallSize,
         head += *infoSize;
     }
 
+out_nomem_info:
     dlfree(list);
 
 done:

libc/bionic/malloc_debug_leak.c

@@ -149,6 +149,8 @@ static HashEntry* record_backtrace(intptr_t* backtrace, size_t numEntries, size_
     } else {
         // create a new entry
         entry = (HashEntry*)dlmalloc(sizeof(HashEntry) + numEntries*sizeof(intptr_t));
+        if (!entry)
+            return NULL;
         entry->allocations = 1;
         entry->slot = slot;
         entry->prev = NULL;

libc/bionic/pthread-rwlocks.c

@@ -0,0 +1,347 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "pthread_internal.h"
+#include <errno.h>
+
+/* Technical note:
+ *
+ * Possible states of a read/write lock:
+ *
+ *  - no readers and no writer (unlocked)
+ *  - one or more readers sharing the lock at the same time (read-locked)
+ *  - one writer holding the lock (write-lock)
+ *
+ * Additionally:
+ *  - trying to get the write-lock while there are any readers blocks
+ *  - trying to get the read-lock while there is a writer blocks
+ *  - a single thread can acquire the lock multiple times in the same mode
+ *
+ *  - Posix states that behaviour is undefined it a thread tries to acquire
+ *    the lock in two distinct modes (e.g. write after read, or read after write).
+ *
+ *  - This implementation tries to avoid writer starvation by making the readers
+ *    block as soon as there is a waiting writer on the lock. However, it cannot
+ *    completely eliminate it: each time the lock is unlocked, all waiting threads
+ *    are woken and battle for it, which one gets it depends on the kernel scheduler
+ *    and is semi-random.
+ *
+ */
+
+#define  __likely(cond)    __builtin_expect(!!(cond), 1)
+#define  __unlikely(cond)  __builtin_expect(!!(cond), 0)
+
+#define  RWLOCKATTR_DEFAULT     0
+#define  RWLOCKATTR_SHARED_MASK 0x0010
+
+extern pthread_internal_t* __get_thread(void);
+
+/* Return a global kernel ID for the current thread */
+static int __get_thread_id(void)
+{
+    return __get_thread()->kernel_id;
+}
+
+int pthread_rwlockattr_init(pthread_rwlockattr_t *attr)
+{
+    if (!attr)
+        return EINVAL;
+
+    *attr = PTHREAD_PROCESS_PRIVATE;
+    return 0;
+}
+
+int pthread_rwlockattr_destroy(pthread_rwlockattr_t *attr)
+{
+    if (!attr)
+        return EINVAL;
+
+    *attr = -1;
+    return 0;
+}
+
+int pthread_rwlockattr_setpshared(pthread_rwlockattr_t *attr, int  pshared)
+{
+    if (!attr)
+        return EINVAL;
+
+    switch (pshared) {
+    case PTHREAD_PROCESS_PRIVATE:
+    case PTHREAD_PROCESS_SHARED:
+        *attr = pshared;
+        return 0;
+    default:
+        return EINVAL;
+    }
+}
+
+int pthread_rwlockattr_getpshared(pthread_rwlockattr_t *attr, int *pshared)
+{
+    if (!attr || !pshared)
+        return EINVAL;
+
+    *pshared = *attr;
+    return 0;
+}
+
+int pthread_rwlock_init(pthread_rwlock_t *rwlock, const pthread_rwlockattr_t *attr)
+{
+    pthread_mutexattr_t*  lock_attr = NULL;
+    pthread_condattr_t*   cond_attr = NULL;
+    pthread_mutexattr_t   lock_attr0;
+    pthread_condattr_t    cond_attr0;
+    int                   ret;
+
+    if (rwlock == NULL)
+        return EINVAL;
+
+    if (attr && *attr == PTHREAD_PROCESS_SHARED) {
+        lock_attr = &lock_attr0;
+        pthread_mutexattr_init(lock_attr);
+        pthread_mutexattr_setpshared(lock_attr, PTHREAD_PROCESS_SHARED);
+
+        cond_attr = &cond_attr0;
+        pthread_condattr_init(cond_attr);
+        pthread_condattr_setpshared(cond_attr, PTHREAD_PROCESS_SHARED);
+    }
+
+    ret = pthread_mutex_init(&rwlock->lock, lock_attr);
+    if (ret != 0)
+        return ret;
+
+    ret = pthread_cond_init(&rwlock->cond, cond_attr);
+    if (ret != 0) {
+        pthread_mutex_destroy(&rwlock->lock);
+        return ret;
+    }
+
+    rwlock->numLocks = 0;
+    rwlock->pendingReaders = 0;
+    rwlock->pendingWriters = 0;
+    rwlock->writerThreadId = 0;
+
+    return 0;
+}
+
+int pthread_rwlock_destroy(pthread_rwlock_t *rwlock)
+{
+    int  ret;
+
+    if (rwlock == NULL)
+        return EINVAL;
+
+    if (rwlock->numLocks > 0)
+        return EBUSY;
+
+    pthread_cond_destroy(&rwlock->cond);
+    pthread_mutex_destroy(&rwlock->lock);
+    return 0;
+}
+
+/* Returns TRUE iff we can acquire a read lock. */
+static __inline__ int read_precondition(pthread_rwlock_t *rwlock, int  thread_id)
+{
+    /* We can't have the lock if any writer is waiting for it (writer bias).
+     * This tries to avoid starvation when there are multiple readers racing.
+     */
+    if (rwlock->pendingWriters > 0)
+        return 0;
+
+    /* We can have the lock if there is no writer, or if we write-own it */
+    /* The second test avoids a self-dead lock in case of buggy code. */
+    if (rwlock->writerThreadId == 0 || rwlock->writerThreadId == thread_id)
+        return 1;
+
+    /* Otherwise, we can't have it */
+    return 0;
+}
+
+/* returns TRUE iff we can acquire a write lock. */
+static __inline__ int write_precondition(pthread_rwlock_t *rwlock, int  thread_id)
+{
+    /* We can get the lock if nobody has it */
+    if (rwlock->numLocks == 0)
+        return 1;
+
+    /* Or if we already own it */
+    if (rwlock->writerThreadId == thread_id)
+        return 1;
+
+    /* Otherwise, not */
+    return 0;
+}
+
+/* This function is used to waken any waiting thread contending
+ * for the lock. One of them should be able to grab it after
+ * that.
+ */
+static void _pthread_rwlock_pulse(pthread_rwlock_t *rwlock)
+{
+    if (rwlock->pendingReaders > 0 || rwlock->pendingWriters > 0)
+        pthread_cond_broadcast(&rwlock->cond);
+}
+
+
+int pthread_rwlock_rdlock(pthread_rwlock_t *rwlock)
+{
+    return pthread_rwlock_timedrdlock(rwlock, NULL);
+}
+
+int pthread_rwlock_tryrdlock(pthread_rwlock_t *rwlock)
+{
+    int ret = 0;
+
+    if (rwlock == NULL)
+        return EINVAL;
+
+    pthread_mutex_lock(&rwlock->lock);
+    if (__unlikely(!read_precondition(rwlock, __get_thread_id())))
+        ret = EBUSY;
+    else
+        rwlock->numLocks ++;
+    pthread_mutex_unlock(&rwlock->lock);
+
+    return ret;
+}
+
+int pthread_rwlock_timedrdlock(pthread_rwlock_t *rwlock, const struct timespec *abs_timeout)
+{
+    int thread_id, ret = 0;
+
+    if (rwlock == NULL)
+        return EINVAL;
+
+    pthread_mutex_lock(&rwlock->lock);
+    thread_id = __get_thread_id();
+    if (__unlikely(!read_precondition(rwlock, thread_id))) {
+        rwlock->pendingReaders += 1;
+        do {
+            ret = pthread_cond_timedwait(&rwlock->cond, &rwlock->lock, abs_timeout);
+        } while (ret == 0 && !read_precondition(rwlock, thread_id));
+        rwlock->pendingReaders -= 1;
+        if (ret != 0)
+            goto EXIT;
+    }
+    rwlock->numLocks ++;
+EXIT:
+    pthread_mutex_unlock(&rwlock->lock);
+    return ret;
+}
+
+
+int pthread_rwlock_wrlock(pthread_rwlock_t *rwlock)
+{
+    return pthread_rwlock_timedwrlock(rwlock, NULL);
+}
+
+int pthread_rwlock_trywrlock(pthread_rwlock_t *rwlock)
+{
+    int thread_id, ret = 0;
+
+    if (rwlock == NULL)
+        return EINVAL;
+
+    pthread_mutex_lock(&rwlock->lock);
+    thread_id = __get_thread_id();
+    if (__unlikely(!write_precondition(rwlock, thread_id))) {
+        ret = EBUSY;
+    } else {
+        rwlock->numLocks ++;
+        rwlock->writerThreadId = thread_id;
+    }
+    pthread_mutex_unlock(&rwlock->lock);
+    return ret;
+}
+
+int pthread_rwlock_timedwrlock(pthread_rwlock_t *rwlock, const struct timespec *abs_timeout)
+{
+    int thread_id, ret = 0;
+
+    if (rwlock == NULL)
+        return EINVAL;
+
+    pthread_mutex_lock(&rwlock->lock);
+    thread_id = __get_thread_id();
+    if (__unlikely(!write_precondition(rwlock, thread_id))) {
+        /* If we can't read yet, wait until the rwlock is unlocked
+         * and try again. Increment pendingReaders to get the
+         * cond broadcast when that happens.
+         */
+        rwlock->pendingWriters += 1;
+        do {
+            ret = pthread_cond_timedwait(&rwlock->cond, &rwlock->lock, abs_timeout);
+        } while (ret == 0 && !write_precondition(rwlock, thread_id));
+        rwlock->pendingWriters -= 1;
+        if (ret != 0)
+            goto EXIT;
+    }
+    rwlock->numLocks ++;
+    rwlock->writerThreadId = thread_id;
+EXIT:
+    pthread_mutex_unlock(&rwlock->lock);
+    return ret;
+}
+
+
+int pthread_rwlock_unlock(pthread_rwlock_t *rwlock)
+{
+    int  ret = 0;
+
+    if (rwlock == NULL)
+        return EINVAL;
+
+    pthread_mutex_lock(&rwlock->lock);
+
+    /* The lock must be held */
+    if (rwlock->numLocks == 0) {
+        ret = EPERM;
+        goto EXIT;
+    }
+
+    /* If it has only readers, writerThreadId is 0 */
+    if (rwlock->writerThreadId == 0) {
+        if (--rwlock->numLocks == 0)
+            _pthread_rwlock_pulse(rwlock);
+    }
+    /* Otherwise, it has only a single writer, which
+     * must be ourselves.
+     */
+    else {
+        if (rwlock->writerThreadId != __get_thread_id()) {
+            ret = EPERM;
+            goto EXIT;
+        }
+        if (--rwlock->numLocks == 0) {
+            rwlock->writerThreadId = 0;
+            _pthread_rwlock_pulse(rwlock);
+        }
+    }
+EXIT:
+    pthread_mutex_unlock(&rwlock->lock);
+    return ret;
+}

libc/bionic/pthread.c

@@ -43,17 +43,38 @@
 #include <memory.h>
 #include <assert.h>
 #include <malloc.h>
-#include <linux/futex.h>
+#include <bionic_futex.h>
+#include <bionic_atomic_inline.h>
+#include <sys/prctl.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <stdio.h>
 
 extern int  __pthread_clone(int (*fn)(void*), void *child_stack, int flags, void *arg);
 extern void _exit_with_stack_teardown(void * stackBase, int stackSize, int retCode);
 extern void _exit_thread(int  retCode);
 extern int  __set_errno(int);
 
+int  __futex_wake_ex(volatile void *ftx, int pshared, int val)
+{
+    return __futex_syscall3(ftx, pshared ? FUTEX_WAKE : FUTEX_WAKE_PRIVATE, val);
+}
+
+int  __futex_wait_ex(volatile void *ftx, int pshared, int val, const struct timespec *timeout)
+{
+    return __futex_syscall4(ftx, pshared ? FUTEX_WAIT : FUTEX_WAIT_PRIVATE, val, timeout);
+}
+
 #define  __likely(cond)    __builtin_expect(!!(cond), 1)
 #define  __unlikely(cond)  __builtin_expect(!!(cond), 0)
 
-void _thread_created_hook(pid_t thread_id) __attribute__((noinline));
+#ifdef __i386__
+#define ATTRIBUTES __attribute__((noinline)) __attribute__((fastcall))
+#else
+#define ATTRIBUTES __attribute__((noinline))
+#endif
+
+void ATTRIBUTES _thread_created_hook(pid_t thread_id);
 
 #define PTHREAD_ATTR_FLAG_DETACHED      0x00000001
 #define PTHREAD_ATTR_FLAG_USER_STACK    0x00000002
@@ -712,24 +733,6 @@ int pthread_setschedparam(pthread_t thid, int policy,
 }
 
 
-int __futex_wait(volatile void *ftx, int val, const struct timespec *timeout);
-int __futex_wake(volatile void *ftx, int count);
-
-int __futex_syscall3(volatile void *ftx, int op, int val);
-int __futex_syscall4(volatile void *ftx, int op, int val, const struct timespec *timeout);
-
-#ifndef FUTEX_PRIVATE_FLAG
-#define FUTEX_PRIVATE_FLAG  128
-#endif
-
-#ifndef FUTEX_WAIT_PRIVATE
-#define FUTEX_WAIT_PRIVATE  (FUTEX_WAIT|FUTEX_PRIVATE_FLAG)
-#endif
-
-#ifndef FUTEX_WAKE_PRIVATE
-#define FUTEX_WAKE_PRIVATE  (FUTEX_WAKE|FUTEX_PRIVATE_FLAG)
-#endif
-
 // mutex lock states
 //
 // 0: unlocked
@@ -883,8 +886,13 @@ int pthread_mutex_init(pthread_mutex_t *mutex,
 
 int pthread_mutex_destroy(pthread_mutex_t *mutex)
 {
-    if (__unlikely(mutex == NULL))
-        return EINVAL;
+    int ret;
+
+    /* use trylock to ensure that the mutex value is
+     * valid and is not already locked. */
+    ret = pthread_mutex_trylock(mutex);
+    if (ret != 0)
+        return ret;
 
     mutex->value = 0xdead10cc;
     return 0;
@@ -931,11 +939,10 @@ _normal_lock(pthread_mutex_t*  mutex)
          * that the mutex is in state 2 when we go to sleep on it, which
          * guarantees a wake-up call.
          */
-        int  wait_op = shared ? FUTEX_WAIT : FUTEX_WAIT_PRIVATE;
-
         while (__atomic_swap(shared|2, &mutex->value ) != (shared|0))
-            __futex_syscall4(&mutex->value, wait_op, shared|2, 0);
+            __futex_wait_ex(&mutex->value, shared, shared|2, 0);
     }
+    ANDROID_MEMBAR_FULL();
 }
 
 /*
@@ -945,6 +952,8 @@ _normal_lock(pthread_mutex_t*  mutex)
 static __inline__ void
 _normal_unlock(pthread_mutex_t*  mutex)
 {
+    ANDROID_MEMBAR_FULL();
+
     /* We need to preserve the shared flag during operations */
     int  shared = mutex->value & MUTEX_SHARED_MASK;
 
@@ -954,7 +963,6 @@ _normal_unlock(pthread_mutex_t*  mutex)
      * if it wasn't 1 we have to do some additional work.
      */
     if (__atomic_dec(&mutex->value) != (shared|1)) {
-        int  wake_op = shared ? FUTEX_WAKE : FUTEX_WAKE_PRIVATE;
         /*
          * Start by releasing the lock.  The decrement changed it from
          * "contended lock" to "uncontended lock", which means we still
@@ -992,7 +1000,7 @@ _normal_unlock(pthread_mutex_t*  mutex)
          * Either way we have correct behavior and nobody is orphaned on
          * the wait queue.
          */
-        __futex_syscall3(&mutex->value, wake_op, 1);
+        __futex_wake_ex(&mutex->value, shared, 1);
     }
 }
 
@@ -1012,7 +1020,7 @@ _recursive_unlock(void)
 
 int pthread_mutex_lock(pthread_mutex_t *mutex)
 {
-    int mtype, tid, new_lock_type, shared, wait_op;
+    int mtype, tid, new_lock_type, shared;
 
     if (__unlikely(mutex == NULL))
         return EINVAL;
@@ -1057,8 +1065,7 @@ int pthread_mutex_lock(pthread_mutex_t *mutex)
     new_lock_type = 1;
 
     /* compute futex wait opcode and restore shared flag in mtype */
-    wait_op = shared ? FUTEX_WAIT : FUTEX_WAIT_PRIVATE;
-    mtype  |= shared;
+    mtype |= shared;
 
     for (;;) {
         int  oldv;
@@ -1084,7 +1091,7 @@ int pthread_mutex_lock(pthread_mutex_t *mutex)
          */
         new_lock_type = 2;
 
-        __futex_syscall4(&mutex->value, wait_op, oldv, NULL);
+        __futex_wait_ex(&mutex->value, shared, oldv, NULL);
     }
     return 0;
 }
@@ -1124,8 +1131,7 @@ int pthread_mutex_unlock(pthread_mutex_t *mutex)
 
     /* Wake one waiting thread, if any */
     if ((oldv & 3) == 2) {
-        int wake_op = shared ? FUTEX_WAKE : FUTEX_WAKE_PRIVATE;
-        __futex_syscall3(&mutex->value, wake_op, 1);
+        __futex_wake_ex(&mutex->value, shared, 1);
     }
     return 0;
 }
@@ -1144,8 +1150,10 @@ int pthread_mutex_trylock(pthread_mutex_t *mutex)
     /* Handle common case first */
     if ( __likely(mtype == MUTEX_TYPE_NORMAL) )
     {
-        if (__atomic_cmpxchg(shared|0, shared|1, &mutex->value) == 0)
+        if (__atomic_cmpxchg(shared|0, shared|1, &mutex->value) == 0) {
+            ANDROID_MEMBAR_FULL();
             return 0;
+        }
 
         return EBUSY;
     }
@@ -1225,7 +1233,7 @@ int pthread_mutex_lock_timeout_np(pthread_mutex_t *mutex, unsigned msecs)
     clockid_t        clock = CLOCK_MONOTONIC;
     struct timespec  abstime;
     struct timespec  ts;
-    int              mtype, tid, oldv, new_lock_type, shared, wait_op;
+    int              mtype, tid, oldv, new_lock_type, shared;
 
     /* compute absolute expiration time */
     __timespec_to_relative_msec(&abstime, msecs, clock);
@@ -1239,19 +1247,20 @@ int pthread_mutex_lock_timeout_np(pthread_mutex_t *mutex, unsigned msecs)
     /* Handle common case first */
     if ( __likely(mtype == MUTEX_TYPE_NORMAL) )
     {
-        int  wait_op = shared ? FUTEX_WAIT : FUTEX_WAIT_PRIVATE;
-
-        /* fast path for unconteded lock */
-        if (__atomic_cmpxchg(shared|0, shared|1, &mutex->value) == 0)
+        /* fast path for uncontended lock */
+        if (__atomic_cmpxchg(shared|0, shared|1, &mutex->value) == 0) {
+            ANDROID_MEMBAR_FULL();
             return 0;
+        }
 
         /* loop while needed */
         while (__atomic_swap(shared|2, &mutex->value) != (shared|0)) {
             if (__timespec_to_absolute(&ts, &abstime, clock) < 0)
                 return EBUSY;
 
-            __futex_syscall4(&mutex->value, wait_op, shared|2, &ts);
+            __futex_wait_ex(&mutex->value, shared, shared|2, &ts);
         }
+        ANDROID_MEMBAR_FULL();
         return 0;
     }
 
@@ -1282,7 +1291,6 @@ int pthread_mutex_lock_timeout_np(pthread_mutex_t *mutex, unsigned msecs)
     new_lock_type = 1;
 
     /* Compute wait op and restore sharing bit in mtype */
-    wait_op = shared ? FUTEX_WAIT : FUTEX_WAIT_PRIVATE;
     mtype  |= shared;
 
     for (;;) {
@@ -1313,7 +1321,7 @@ int pthread_mutex_lock_timeout_np(pthread_mutex_t *mutex, unsigned msecs)
         if (__timespec_to_absolute(&ts, &abstime, clock) < 0)
             return EBUSY;
 
-        __futex_syscall4(&mutex->value, wait_op, oldv, &ts);
+        __futex_wait_ex(&mutex->value, shared, oldv, &ts);
     }
     return 0;
 }
@@ -1406,7 +1414,6 @@ static int
 __pthread_cond_pulse(pthread_cond_t *cond, int  counter)
 {
     long flags;
-    int  wake_op;
 
     if (__unlikely(cond == NULL))
         return EINVAL;
@@ -1420,8 +1427,7 @@ __pthread_cond_pulse(pthread_cond_t *cond, int  counter)
             break;
     }
 
-    wake_op = COND_IS_SHARED(cond) ? FUTEX_WAKE : FUTEX_WAKE_PRIVATE;
-    __futex_syscall3(&cond->value, wake_op, counter);
+    __futex_wake_ex(&cond->value, COND_IS_SHARED(cond), counter);
     return 0;
 }
 
@@ -1446,10 +1452,9 @@ int __pthread_cond_timedwait_relative(pthread_cond_t *cond,
 {
     int  status;
     int  oldvalue = cond->value;
-    int  wait_op  = COND_IS_SHARED(cond) ? FUTEX_WAIT : FUTEX_WAIT_PRIVATE;
 
     pthread_mutex_unlock(mutex);
-    status = __futex_syscall4(&cond->value, wait_op, oldvalue, reltime);
+    status = __futex_wait_ex(&cond->value, COND_IS_SHARED(cond), oldvalue, reltime);
     pthread_mutex_lock(mutex);
 
     if (status == (-ETIMEDOUT)) return ETIMEDOUT;
@@ -1867,15 +1872,66 @@ int pthread_getcpuclockid(pthread_t  tid, clockid_t  *clockid)
  */
 int  pthread_once( pthread_once_t*  once_control,  void (*init_routine)(void) )
 {
-    static pthread_mutex_t   once_lock = PTHREAD_MUTEX_INITIALIZER;
+    static pthread_mutex_t   once_lock = PTHREAD_RECURSIVE_MUTEX_INITIALIZER;
 
     if (*once_control == PTHREAD_ONCE_INIT) {
-        _normal_lock( &once_lock );
+        pthread_mutex_lock( &once_lock );
         if (*once_control == PTHREAD_ONCE_INIT) {
             (*init_routine)();
             *once_control = ~PTHREAD_ONCE_INIT;
         }
-        _normal_unlock( &once_lock );
+        pthread_mutex_unlock( &once_lock );
     }
     return 0;
 }
+
+/* This value is not exported by kernel headers, so hardcode it here */
+#define MAX_TASK_COMM_LEN	16
+#define TASK_COMM_FMT 		"/proc/self/task/%u/comm"
+
+int pthread_setname_np(pthread_t thid, const char *thname)
+{
+    size_t thname_len;
+    int saved_errno, ret;
+
+    if (thid == 0 || thname == NULL)
+        return EINVAL;
+
+    thname_len = strlen(thname);
+    if (thname_len >= MAX_TASK_COMM_LEN)
+        return ERANGE;
+
+    saved_errno = errno;
+    if (thid == pthread_self())
+    {
+        ret = prctl(PR_SET_NAME, (unsigned long)thname, 0, 0, 0) ? errno : 0;
+    }
+    else
+    {
+        /* Have to change another thread's name */
+        pthread_internal_t *thread = (pthread_internal_t *)thid;
+        char comm_name[sizeof(TASK_COMM_FMT) + 8];
+        ssize_t n;
+        int fd;
+
+        snprintf(comm_name, sizeof(comm_name), TASK_COMM_FMT, (unsigned int)thread->kernel_id);
+        fd = open(comm_name, O_RDWR);
+        if (fd == -1)
+        {
+            ret = errno;
+            goto exit;
+        }
+        n = TEMP_FAILURE_RETRY(write(fd, thname, thname_len));
+        close(fd);
+
+        if (n < 0)
+            ret = errno;
+        else if ((size_t)n != thname_len)
+            ret = EIO;
+        else
+            ret = 0;
+    }
+exit:
+    errno = saved_errno;
+    return ret;
+}

libc/bionic/ptrace.c

@@ -1,63 +1,68 @@
-/*
- * 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 <sys/types.h>
-#include <sys/ptrace.h>
-
-extern long __ptrace(int request, pid_t pid, void *addr, void *data);
-
-long ptrace(int request, pid_t pid, void * addr, void * data)
-{
-    switch (request) {
-        case PTRACE_PEEKUSR:
-        case PTRACE_PEEKTEXT:
-        case PTRACE_PEEKDATA:
-        {
-            long word;
-            long ret;
-            
-            ret = __ptrace(request, pid, addr, &word);
-            if (ret == 0) {
-                return word;
-            } else {
-                // __ptrace will set errno for us
-                return -1;
-            }
-        }
-
-        default:
-             return __ptrace(request, pid, addr, data);
-    }
-}
-
-/*
- * Hook for gdb to get notified when a thread is created
- */
-void _thread_created_hook(pid_t thread_id) __attribute__((noinline));
-void _thread_created_hook(pid_t thread_id)
-{
-}
+/*
+ * 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 <sys/types.h>
+#include <sys/ptrace.h>
+
+extern long __ptrace(int request, pid_t pid, void *addr, void *data);
+
+long ptrace(int request, pid_t pid, void * addr, void * data)
+{
+    switch (request) {
+        case PTRACE_PEEKUSR:
+        case PTRACE_PEEKTEXT:
+        case PTRACE_PEEKDATA:
+        {
+            long word;
+            long ret;
+
+            ret = __ptrace(request, pid, addr, &word);
+            if (ret == 0) {
+                return word;
+            } else {
+                // __ptrace will set errno for us
+                return -1;
+            }
+        }
+
+        default:
+             return __ptrace(request, pid, addr, data);
+    }
+}
+
+/*
+ * Hook for gdb to get notified when a thread is created
+ */
+#ifdef __i386__
+#define ATTRIBUTES __attribute__((noinline)) __attribute__((fastcall))
+#else
+#define ATTRIBUTES __attribute__((noinline))
+#endif
+
+void ATTRIBUTES _thread_created_hook(pid_t thread_id)
+{
+}

libc/bionic/semaphore.c

@@ -30,6 +30,62 @@
 #include <sys/time.h>
 #include <sys/atomics.h>
 #include <time.h>
+#include <bionic_atomic_inline.h>
+#include <bionic_futex.h>
+#include <limits.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)
 {
@@ -38,26 +94,34 @@ int sem_init(sem_t *sem, int pshared, unsigned int value)
         return -1;
     }
 
-    if (pshared != 0) {
-        errno = ENOSYS;
+    /* ensure that 'value' can be stored in the semaphore */
+    if (value > SEM_MAX_VALUE) {
+        errno = EINVAL;
         return -1;
     }
 
-    sem->count = value;
+    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;
     }
-    if (sem->count == 0) {
+    count = SEMCOUNT_TO_VALUE(sem->count);
+    if (count < 0) {
         errno = EBUSY;
         return -1;
     }
+    sem->count = 0;
     return 0;
 }
 
@@ -90,38 +154,120 @@ int sem_unlink(const char * name)
 }
 
 
+/* 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
-__atomic_dec_if_positive( volatile unsigned int*  pvalue )
+__sem_dec(volatile unsigned int *pvalue)
 {
-    unsigned int  old;
+    unsigned int shared = (*pvalue & SEMCOUNT_SHARED_MASK);
+    unsigned int old, new;
+    int          ret;
 
     do {
-        old = *pvalue;
-    }
-    while ( old != 0 && __atomic_cmpxchg( (int)old, (int)old-1, (volatile int*)pvalue ) != 0 );
+        old = (*pvalue & SEMCOUNT_VALUE_MASK);
+        ret = SEMCOUNT_TO_VALUE(old);
+        if (ret < 0)
+            break;
 
-    return old;
+        new = SEMCOUNT_DECREMENT(old);
+    }
+    while (__atomic_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 (__atomic_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 ( __atomic_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 (__atomic_dec_if_positive(&sem->count))
+        if (__sem_dec(&sem->count) > 0)
             break;
 
-        __futex_wait(&sem->count, 0, 0);
+        __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)
 {
     int  ret;
+    unsigned int shared;
 
     if (sem == NULL) {
         errno = EINVAL;
@@ -129,11 +275,15 @@ int sem_timedwait(sem_t *sem, const struct timespec *abs_timeout)
     }
 
     /* POSIX says we need to try to decrement the semaphore
-     * before checking the timeout value */
-    if (__atomic_dec_if_positive(&sem->count))
+     * 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 */
+    /* Check it as per Posix */
     if (abs_timeout == NULL    ||
         abs_timeout->tv_sec < 0 ||
         abs_timeout->tv_nsec < 0 ||
@@ -143,6 +293,8 @@ int sem_timedwait(sem_t *sem, const struct timespec *abs_timeout)
         return -1;
     }
 
+    shared = SEM_GET_SHARED(sem);
+
     for (;;) {
         struct timespec ts;
         int             ret;
@@ -161,27 +313,47 @@ int sem_timedwait(sem_t *sem, const struct timespec *abs_timeout)
             return -1;
         }
 
-        ret = __futex_wait(&sem->count, 0, &ts);
+        /* 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;
         }
-
-        if (__atomic_dec_if_positive(&sem->count))
-            break;
     }
     return 0;
 }
 
+/* Unlock a semaphore */
 int sem_post(sem_t *sem)
 {
+    unsigned int shared;
+    int          old;
+
     if (sem == NULL)
         return EINVAL;
 
-    if (__atomic_inc((volatile int*)&sem->count) >= 0)
-        __futex_wake(&sem->count, 1);
+    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;
 }
@@ -193,7 +365,8 @@ int  sem_trywait(sem_t *sem)
         return -1;
     }
 
-    if (__atomic_dec_if_positive(&sem->count) > 0) {
+    if (__sem_trydec(&sem->count) > 0) {
+        ANDROID_MEMBAR_FULL();
         return 0;
     } else {
         errno = EAGAIN;
@@ -201,13 +374,29 @@ int  sem_trywait(sem_t *sem)
     }
 }
 
+/* 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;
     }
 
-    *sval = sem->count;
+    val = SEMCOUNT_TO_VALUE(sem->count);
+    if (val < 0)
+        val = 0;
+
+    *sval = val;
     return 0;
 }

libc/bionic/system_properties.c

@@ -126,7 +126,7 @@ int __system_property_read(const prop_info *pi, char *name, char *value)
     for(;;) {
         serial = pi->serial;
         while(SERIAL_DIRTY(serial)) {
-            __futex_wait(&pi->serial, serial, 0);
+            __futex_wait((volatile void *)&pi->serial, serial, 0);
             serial = pi->serial;
         }
         len = SERIAL_VALUE_LEN(serial);
@@ -164,7 +164,7 @@ int __system_property_wait(const prop_info *pi)
     } else {
         n = pi->serial;
         do {
-            __futex_wait(&pi->serial, n, 0);
+            __futex_wait((volatile void *)&pi->serial, n, 0);
         } while(n == pi->serial);
     }
     return 0;

libc/docs/CHANGES.TXT

@@ -1,7 +1,89 @@
 Bionic ChangeLog:
 -----------------
 
-Differences between current and Android 2.1:
+Differences between current and Android 2.2:
+
+- <pthread.h>: Add reader/writer locks implementation. Add sanity
+  checking to pthread_mutex_destroy() (e.g. a locked mutex will return
+  EBUSY).
+
+- <semaphore.h>: Use private futexes for semaphore implementation,
+  unless your set 'pshared' to non-0 when calling sem_init().
+
+  Also fixed a bug in sem_post() to make it wake up all waiting
+  threads, instead of one. As a consequence, the maximum semaphore
+  value is now reduced to 0x3fffffff.
+
+- <math.h>: Added sincos(), sincosf() and sincosl() (GLibc compatibility).
+
+- <sys/sysinfo.h>: Added missing sysinfo() system call implementation
+  (the function was already declared in the header though).
+
+- sysconf() didn't work for some arguments due to a small bug in the
+  /proc line parser.
+
+- <termio.h>: added missing header (just includes <termios.h>)
+
+- <unistd.h>: add missing declaration for truncate(). The implementation
+  was already here since Android 1.5.
+
+  modify implementation of alarm() to return 0 in case of error (i.e.
+  if a value larger than 0x7fffffff seconds is passed to it). This
+  makes the implementation compliant with the GLibc behaviour.
+
+- <wchar.h>: small fixes to really support wchar_t in Bionic (not there yet).
+
+     the size of wchar_t is still 32-bit (decided by the compiler)
+
+     WCHAR_MIN: changed from 0 to INT_MIN
+     WCHAR_MAX: changed from 255 to INT_MAX
+
+     wcpcpy(), wcpncpy(), wcscat(), wcschr(), wcscmp(),
+     wcscpy(), wcscspn(), wcsdup(), wcslcat(), wcslcpy(),
+     wcslen(), wcsncat(), wcsncmp(), wcsncpy(), wcsnlen(),
+     wcspbrk(), wcsrchr(), wcsrchr(), wcsspn(), wcsstr(),
+     wcstok(), wcswidth(), wmemchr(), wmemcmp(), wmemcpy(),
+     wmemmove(), wmemset(): Added proper implementations.
+
+     wcscasecmp(), wcsncasecmp(): Added implementation limited
+     to ASCII codes for lower/upper.
+
+     wcscoll(): added dummy implementation that calls wcscmp()
+     wcsxfrm(): added dummy implementation that calls wcsncpy()
+
+  NOTE: Technically, this breaks the ABI, but we never claimed to support
+        wchar_t anyway. The wchar_t support is still *NOT* official at this
+        point. We need better multi-byte support code, and wprintf/wscanf
+        stuff too.
+
+- <inttypes.h>: add missing declarations for strntoimax abd strntoumax.
+
+- <stdlib.h>: add missing declarations for drand48() and erand48().
+
+- clearerr(): fix broken implementation.
+
+- Feature test macros like _POSIX_C_SOURCE / _XOPEN_SOURCE / _C99_SOURCE
+  are now handled correctly by our C library headers (see <sys/cdefs.h>)
+
+- <sys/select.h>: add missing declaration for pselect()
+
+- <sys/vfs.h>: fixed implementation of fstatfs() (also fixes fpathconf()
+  which uses it).
+
+- <dlfcn.h>: fixed dlopen() implementation to support dlopen(NULL, ...).
+  This allows one to look at the dynamic symbols exported by an executable.
+
+- <private/bionic_tls.h>: use kernel helper functions for static versions
+  of the C library. This is necessary because we don't know where the corresponding
+  machine code is going to run, and the optimization for __get_tls() might
+  not match the features of the target device where we run a static executable
+  linked to the C library. This fixes one of the bug that explains why gdbserver
+  didn't work well with threads.
+
+-------------------------------------------------------------------------------
+Differences between Android 2.2. and Android 2.1:
+
+- Support FP register save/load in setjmp()/longjmp() on ARMv7 builds.
 
 - Add support for SH-4 CPU architecture !
 

libc/include/fcntl.h

@@ -39,6 +39,10 @@ __BEGIN_DECLS
 #define O_ASYNC  FASYNC
 #endif
 
+#ifndef O_CLOEXEC
+#define O_CLOEXEC  02000000
+#endif
+
 extern int  open(const char*  path, int  mode, ...);
 extern int  openat(int fd, const char*  path, int  mode, ...);
 extern int  unlinkat(int dirfd, const char *pathname, int flags);

libc/include/getopt.h

@@ -71,14 +71,19 @@ int	 getopt_long_only(int, char * const *, const char *,
 #ifndef _GETOPT_DEFINED_
 #define _GETOPT_DEFINED_
 int	 getopt(int, char * const *, const char *);
-int	 getsubopt(char **, char * const *, char **);
+
 
 extern   char *optarg;                  /* getopt(3) external variables */
 extern   int opterr;
 extern   int optind;
 extern   int optopt;
 extern   int optreset;
+
+#if 0 /* MISSING FROM BIONIC */
+int       getsubopt(char **, char * const *, char **);
 extern   char *suboptarg;               /* getsubopt(3) external variable */
+#endif /* MISSING */
+
 #endif
 __END_DECLS
  

libc/include/inttypes.h

@@ -253,6 +253,9 @@ intmax_t	imaxabs(intmax_t);
 imaxdiv_t	imaxdiv(intmax_t, intmax_t);
 intmax_t	strtoimax(const char *, char **, int);
 uintmax_t	strtoumax(const char *, char **, int);
+
+intmax_t	strntoimax(const char *nptr, char **endptr, int base, size_t n);
+uintmax_t	strntoumax(const char *nptr, char **endptr, int base, size_t n);
 __END_DECLS
 
 #endif /* _INTTYPES_H_ */

libc/include/limits.h

@@ -86,7 +86,7 @@
 #include <sys/limits.h>
 
 #if __POSIX_VISIBLE
-#include <arch/syslimits.h>
+#include <sys/syslimits.h>
 #endif
 
 #ifndef PAGESIZE

libc/include/netinet/in6.h

@@ -60,6 +60,10 @@
 #define IN6_IS_ADDR_SITELOCAL(a)	\
 	(((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0))
 
+/* RFC 4193. */
+#define IN6_IS_ADDR_ULA(a)	\
+	(((a)->s6_addr[0] & 0xfe) == 0xfc)
+
 #define IN6_IS_ADDR_MULTICAST(a)	\
 	(((__const uint8_t *) (a))[0] == 0xff)
 

libc/include/pathconf.h

@@ -28,6 +28,10 @@
 #ifndef _PATHCONF_H_
 #define _PATHCONF_H_
 
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+
 /* constants to be used for the 'name' paremeter of pathconf/fpathconf */
 
 #define  _PC_FILESIZEBITS       0x0000
@@ -54,5 +58,7 @@
 extern long fpathconf(int fildes, int name);
 extern long pathconf(const char *path, int name);
 
+__END_DECLS
+
 #endif /* _PATHCONF_H_ */
 

libc/include/pthread.h

@@ -219,6 +219,41 @@ int pthread_cond_timeout_np(pthread_cond_t *cond,
  */
 int pthread_mutex_lock_timeout_np(pthread_mutex_t *mutex, unsigned msecs);
 
+/* read-write lock support */
+
+typedef int pthread_rwlockattr_t;
+
+typedef struct {
+    pthread_mutex_t  lock;
+    pthread_cond_t   cond;
+    int              numLocks;
+    int              writerThreadId;
+    int              pendingReaders;
+    int              pendingWriters;
+    void*            reserved[4];  /* for future extensibility */
+} pthread_rwlock_t;
+
+#define PTHREAD_RWLOCK_INITIALIZER  { PTHREAD_MUTEX_INITIALIZER, 0, NULL, 0, 0 }
+
+int pthread_rwlockattr_init(pthread_rwlockattr_t *attr);
+int pthread_rwlockattr_destroy(pthread_rwlockattr_t *attr);
+int pthread_rwlockattr_setpshared(pthread_rwlockattr_t *attr, int  pshared);
+int pthread_rwlockattr_getpshared(pthread_rwlockattr_t *attr, int *pshared);
+
+int pthread_rwlock_init(pthread_rwlock_t *rwlock, const pthread_rwlockattr_t *attr);
+int pthread_rwlock_destroy(pthread_rwlock_t *rwlock);
+
+int pthread_rwlock_rdlock(pthread_rwlock_t *rwlock);
+int pthread_rwlock_tryrdlock(pthread_rwlock_t *rwlock);
+int pthread_rwlock_timedrdlock(pthread_rwlock_t *rwlock, const struct timespec *abs_timeout);
+
+int pthread_rwlock_wrlock(pthread_rwlock_t *rwlock);
+int pthread_rwlock_trywrlock(pthread_rwlock_t *rwlock);
+int pthread_rwlock_timedwrlock(pthread_rwlock_t *rwlock, const struct timespec *abs_timeout);
+
+int pthread_rwlock_unlock(pthread_rwlock_t *rwlock);
+
+
 int pthread_key_create(pthread_key_t *key, void (*destructor_function)(void *));
 int pthread_key_delete (pthread_key_t);
 int pthread_setspecific(pthread_key_t key, const void *value);
@@ -231,6 +266,8 @@ int pthread_getcpuclockid(pthread_t  tid, clockid_t  *clockid);
 
 int pthread_once(pthread_once_t  *once_control, void (*init_routine)(void));
 
+int pthread_setname_np(pthread_t thid, const char *thname);
+
 typedef void  (*__pthread_cleanup_func_t)(void*);
 
 typedef struct __pthread_cleanup_t {
@@ -272,4 +309,4 @@ extern void  __pthread_cleanup_pop(__pthread_cleanup_t*  c,
 #define LONG_LONG_MAX __LONG_LONG_MAX__
 #define LONG_LONG_MIN (-__LONG_LONG_MAX__ - 1)
 
-#endif // _PTHREAD_H_
+#endif /* _PTHREAD_H_ */

libc/include/sched.h

@@ -69,7 +69,7 @@ extern int sched_rr_get_interval(pid_t pid, struct timespec *tp);
 #define CLONE_CHILD_SETTID   0x01000000
 #define CLONE_STOPPED        0x02000000
 
-#ifdef __GNU_SOURCE
+#ifdef _GNU_SOURCE
 extern int clone(int (*fn)(void *), void *child_stack, int flags, void*  arg, ...);
 #endif
 

libc/include/signal.h

@@ -51,6 +51,7 @@ typedef int sig_atomic_t;
 #endif
 
 extern const char * const sys_siglist[];
+extern const char * const sys_signame[];
 
 static __inline__ int sigismember(sigset_t *set, int signum)
 {
@@ -119,6 +120,7 @@ extern int siginterrupt(int  sig, int  flag);
 extern int raise(int);
 extern int kill(pid_t, int);
 extern int killpg(int pgrp, int sig);
+extern int sigaltstack(const stack_t *ss, stack_t *oss);
 
 
 __END_DECLS

libc/include/stdio.h

@@ -300,12 +300,14 @@ __END_DECLS
 #define L_cuserid	9	/* size for cuserid(); UT_NAMESIZE + 1 */
 
 __BEGIN_DECLS
+#if 0 /* MISSING FROM BIONIC */
 char	*ctermid(char *);
 char	*cuserid(char *);
+#endif /* MISSING */
 FILE	*fdopen(int, const char *);
 int	 fileno(FILE *);
 
-#if (__POSIX_VISIBLE >= 199209) || 1 /* ANDROID: Bionic does include this */
+#if (__POSIX_VISIBLE >= 199209)
 int	 pclose(FILE *);
 FILE	*popen(const char *, const char *);
 #endif

libc/include/stdlib.h

@@ -50,7 +50,6 @@ __BEGIN_DECLS
 extern __noreturn void exit(int);
 extern __noreturn void abort(void);
 extern int atexit(void (*)(void));
-extern int on_exit(void (*)(int, void *), void *);
 
 extern char *getenv(const char *);
 extern int putenv(const char *);
@@ -107,6 +106,8 @@ extern long mrand48(void);
 extern long nrand48(unsigned short *);
 extern long lrand48(void);
 extern unsigned short *seed48(unsigned short*);
+extern double erand48(unsigned short xsubi[3]);
+extern double drand48(void);
 extern void srand48(long);
 extern unsigned int arc4random(void);
 extern void arc4random_stir(void);
@@ -135,7 +136,7 @@ extern char*  ptsname(int);
 extern int    ptsname_r(int, char*, size_t);
 extern int    getpt(void);
 
-static __inline__ int grantpt(int __fd)
+static __inline__ int grantpt(int __fd __attribute((unused)))
 {
   (void)__fd;
   return 0;     /* devpts does this all for us! */
@@ -162,6 +163,7 @@ typedef struct {
 
 extern lldiv_t   lldiv(long long, long long);
 
+#if 1 /* MISSING FROM BIONIC - ENABLED FOR STLPort and libstdc++-v3 */
 /* make STLPort happy */
 extern int      mblen(const char *, size_t);
 extern size_t   mbstowcs(wchar_t *, const char *, size_t);
@@ -170,8 +172,14 @@ extern int      mbtowc(wchar_t *, const char *, size_t);
 /* Likewise, make libstdc++-v3 happy.  */
 extern int	wctomb(char *, wchar_t);
 extern size_t	wcstombs(char *, const wchar_t *, size_t);
+#endif /* MISSING */
+
 #define MB_CUR_MAX 1
 
+#if 0 /* MISSING FROM BIONIC */
+extern int on_exit(void (*)(int, void *), void *);
+#endif /* MISSING */
+
 __END_DECLS
 
 #endif /* _STDLIB_H_ */

libc/include/sys/cdefs.h

@@ -37,12 +37,6 @@
 #ifndef	_SYS_CDEFS_H_
 #define	_SYS_CDEFS_H_
 
-
-/* our implementation of wchar_t is only 8-bit - die die non-portable code */
-#undef  __WCHAR_TYPE__
-#define __WCHAR_TYPE__  unsigned char
-
-
 /*
  * Macro to test if we're using a GNU C compiler of a specific vintage
  * or later, for e.g. features that appeared in a particular version
@@ -62,11 +56,6 @@
 #define	__GNUC_PREREQ__(x, y)	0
 #endif
 
-//XXX #include <machine/cdefs.h>
-
-/* BIONIC: simpler definition */
-#define __BSD_VISIBLE   1
-
 #include <sys/cdefs_elf.h>
 
 #if defined(__cplusplus)
@@ -371,6 +360,142 @@
 
 #define	__link_set_entry(set, idx)	(__link_set_begin(set)[idx])
 
+/*
+ * Some of the recend FreeBSD sources used in Bionic need this.
+ * Originally, this is used to embed the rcs versions of each source file
+ * in the generated binary. We certainly don't want this in Bionic.
+ */
+#define	__FBSDID(s)	struct __hack
+
+/*-
+ * The following definitions are an extension of the behavior originally
+ * implemented in <sys/_posix.h>, but with a different level of granularity.
+ * POSIX.1 requires that the macros we test be defined before any standard
+ * header file is included.
+ *
+ * Here's a quick run-down of the versions:
+ *  defined(_POSIX_SOURCE)		1003.1-1988
+ *  _POSIX_C_SOURCE == 1		1003.1-1990
+ *  _POSIX_C_SOURCE == 2		1003.2-1992 C Language Binding Option
+ *  _POSIX_C_SOURCE == 199309		1003.1b-1993
+ *  _POSIX_C_SOURCE == 199506		1003.1c-1995, 1003.1i-1995,
+ *					and the omnibus ISO/IEC 9945-1: 1996
+ *  _POSIX_C_SOURCE == 200112		1003.1-2001
+ *  _POSIX_C_SOURCE == 200809		1003.1-2008
+ *
+ * In addition, the X/Open Portability Guide, which is now the Single UNIX
+ * Specification, defines a feature-test macro which indicates the version of
+ * that specification, and which subsumes _POSIX_C_SOURCE.
+ *
+ * Our macros begin with two underscores to avoid namespace screwage.
+ */
+
+/* Deal with IEEE Std. 1003.1-1990, in which _POSIX_C_SOURCE == 1. */
+#if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 1
+#undef _POSIX_C_SOURCE		/* Probably illegal, but beyond caring now. */
+#define	_POSIX_C_SOURCE		199009
+#endif
+
+/* Deal with IEEE Std. 1003.2-1992, in which _POSIX_C_SOURCE == 2. */
+#if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 2
+#undef _POSIX_C_SOURCE
+#define	_POSIX_C_SOURCE		199209
+#endif
+
+/* Deal with various X/Open Portability Guides and Single UNIX Spec. */
+#ifdef _XOPEN_SOURCE
+#if _XOPEN_SOURCE - 0 >= 700
+#define	__XSI_VISIBLE		700
+#undef _POSIX_C_SOURCE
+#define	_POSIX_C_SOURCE		200809
+#elif _XOPEN_SOURCE - 0 >= 600
+#define	__XSI_VISIBLE		600
+#undef _POSIX_C_SOURCE
+#define	_POSIX_C_SOURCE		200112
+#elif _XOPEN_SOURCE - 0 >= 500
+#define	__XSI_VISIBLE		500
+#undef _POSIX_C_SOURCE
+#define	_POSIX_C_SOURCE		199506
+#endif
+#endif
+
+/*
+ * Deal with all versions of POSIX.  The ordering relative to the tests above is
+ * important.
+ */
+#if defined(_POSIX_SOURCE) && !defined(_POSIX_C_SOURCE)
+#define	_POSIX_C_SOURCE		198808
+#endif
+#ifdef _POSIX_C_SOURCE
+#if _POSIX_C_SOURCE >= 200809
+#define	__POSIX_VISIBLE		200809
+#define	__ISO_C_VISIBLE		1999
+#elif _POSIX_C_SOURCE >= 200112
+#define	__POSIX_VISIBLE		200112
+#define	__ISO_C_VISIBLE		1999
+#elif _POSIX_C_SOURCE >= 199506
+#define	__POSIX_VISIBLE		199506
+#define	__ISO_C_VISIBLE		1990
+#elif _POSIX_C_SOURCE >= 199309
+#define	__POSIX_VISIBLE		199309
+#define	__ISO_C_VISIBLE		1990
+#elif _POSIX_C_SOURCE >= 199209
+#define	__POSIX_VISIBLE		199209
+#define	__ISO_C_VISIBLE		1990
+#elif _POSIX_C_SOURCE >= 199009
+#define	__POSIX_VISIBLE		199009
+#define	__ISO_C_VISIBLE		1990
+#else
+#define	__POSIX_VISIBLE		198808
+#define	__ISO_C_VISIBLE		0
+#endif /* _POSIX_C_SOURCE */
+#else
+/*-
+ * Deal with _ANSI_SOURCE:
+ * If it is defined, and no other compilation environment is explicitly
+ * requested, then define our internal feature-test macros to zero.  This
+ * makes no difference to the preprocessor (undefined symbols in preprocessing
+ * expressions are defined to have value zero), but makes it more convenient for
+ * a test program to print out the values.
+ *
+ * If a program mistakenly defines _ANSI_SOURCE and some other macro such as
+ * _POSIX_C_SOURCE, we will assume that it wants the broader compilation
+ * environment (and in fact we will never get here).
+ */
+#if defined(_ANSI_SOURCE)	/* Hide almost everything. */
+#define	__POSIX_VISIBLE		0
+#define	__XSI_VISIBLE		0
+#define	__BSD_VISIBLE		0
+#define	__ISO_C_VISIBLE		1990
+#elif defined(_C99_SOURCE)	/* Localism to specify strict C99 env. */
+#define	__POSIX_VISIBLE		0
+#define	__XSI_VISIBLE		0
+#define	__BSD_VISIBLE		0
+#define	__ISO_C_VISIBLE		1999
+#else				/* Default environment: show everything. */
+#define	__POSIX_VISIBLE		200809
+#define	__XSI_VISIBLE		700
+#define	__BSD_VISIBLE		1
+#define	__ISO_C_VISIBLE		1999
+#endif
+#endif
+
+/*
+ * Default values.
+ */
+#ifndef __XPG_VISIBLE
+# define __XPG_VISIBLE          700
+#endif
+#ifndef __POSIX_VISIBLE
+# define __POSIX_VISIBLE        200809
+#endif
+#ifndef __ISO_C_VISIBLE
+# define __ISO_C_VISIBLE        1999
+#endif
+#ifndef __BSD_VISIBLE
+# define __BSD_VISIBLE          1
+#endif
+
 #define  __BIONIC__   1
 
 #endif /* !_SYS_CDEFS_H_ */

libc/include/sys/eventfd.h

@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+#ifndef _SYS_EVENTFD_H
+#define _SYS_EVENTFD_H
+
+#include <sys/cdefs.h>
+#include <fcntl.h>
+
+__BEGIN_DECLS
+
+#define  EFD_CLOEXEC   O_CLOEXEC
+#define  EFD_NONBLOCK  O_NONBLOCK
+
+/* type of event counter */
+typedef uint64_t  eventfd_t;
+
+extern int eventfd(unsigned int initval, int flags);
+
+/* Compatibility with GLibc */
+extern int eventfd_read(int fd, eventfd_t *counter);
+extern int eventfd_write(int fd, const eventfd_t counter);
+
+__END_DECLS
+
+#endif /* _SYS_EVENTFD_H */

libc/include/sys/file.h

@@ -31,7 +31,7 @@
 #include <sys/cdefs.h>
 #include <sys/types.h>
 
-// ANDROID: needed for flock()
+/* ANDROID: needed for flock() */
 #include <unistd.h>
 #include <fcntl.h>
 

libc/include/sys/fsuid.h

@@ -33,8 +33,10 @@
 
 __BEGIN_DECLS
 
+#if 0 /* MISSING FROM BIONIC */
 extern int setfsuid(uid_t);
 extern int setfsgid(gid_t);
+#endif /* MISSING */
 
 __END_DECLS
 

libc/include/sys/ioctl_compat.h

@@ -39,8 +39,8 @@
 #ifndef _SYS_IOCTL_COMPAT_H_
 #define	_SYS_IOCTL_COMPAT_H_
 
-//#include <sys/ttychars.h>
-//#include <sys/ttydev.h>
+/*#include <sys/ttychars.h>*/
+/*#include <sys/ttydev.h>*/
 
 struct tchars {
 	char	t_intrc;	/* interrupt */

libc/include/sys/linux-syscalls.h

@@ -72,6 +72,7 @@
 #define __NR__newselect                   (__NR_SYSCALL_BASE + 142)
 #define __NR_ftruncate                    (__NR_SYSCALL_BASE + 93)
 #define __NR_fsync                        (__NR_SYSCALL_BASE + 118)
+#define __NR_fdatasync                    (__NR_SYSCALL_BASE + 148)
 #define __NR_fchown32                     (__NR_SYSCALL_BASE + 207)
 #define __NR_sync                         (__NR_SYSCALL_BASE + 36)
 #define __NR_fcntl64                      (__NR_SYSCALL_BASE + 221)
@@ -127,6 +128,7 @@
 #define __NR_init_module                  (__NR_SYSCALL_BASE + 128)
 #define __NR_delete_module                (__NR_SYSCALL_BASE + 129)
 #define __NR_syslog                       (__NR_SYSCALL_BASE + 103)
+#define __NR_sysinfo                      (__NR_SYSCALL_BASE + 116)
 #define __NR_futex                        (__NR_SYSCALL_BASE + 240)
 #define __NR_poll                         (__NR_SYSCALL_BASE + 168)
 
@@ -137,6 +139,7 @@
 #define __NR_openat                       (__NR_SYSCALL_BASE + 322)
 #define __NR_madvise                      (__NR_SYSCALL_BASE + 220)
 #define __NR_mincore                      (__NR_SYSCALL_BASE + 219)
+#define __NR_pipe2                        (__NR_SYSCALL_BASE + 359)
 #define __NR_getdents64                   (__NR_SYSCALL_BASE + 217)
 #define __NR_fstatfs64                    (__NR_SYSCALL_BASE + 267)
 #define __NR_fstatat64                    (__NR_SYSCALL_BASE + 327)
@@ -179,6 +182,7 @@
 #define __NR_inotify_init                 (__NR_SYSCALL_BASE + 316)
 #define __NR_inotify_add_watch            (__NR_SYSCALL_BASE + 317)
 #define __NR_inotify_rm_watch             (__NR_SYSCALL_BASE + 318)
+#define __NR_eventfd2                     (__NR_SYSCALL_BASE + 356)
 #define __NR_ARM_set_tls                  (__NR_SYSCALL_BASE + 983045)
 #define __NR_ARM_cacheflush               (__NR_SYSCALL_BASE + 983042)
 #endif
@@ -193,6 +197,7 @@
 #define __NR_openat                       (__NR_SYSCALL_BASE + 295)
 #define __NR_madvise                      (__NR_SYSCALL_BASE + 219)
 #define __NR_mincore                      (__NR_SYSCALL_BASE + 218)
+#define __NR_pipe2                        (__NR_SYSCALL_BASE + 331)
 #define __NR_getdents64                   (__NR_SYSCALL_BASE + 220)
 #define __NR_fstatfs64                    (__NR_SYSCALL_BASE + 269)
 #define __NR_fstatat64                    (__NR_SYSCALL_BASE + 300)
@@ -221,6 +226,7 @@
 #define __NR_inotify_init                 (__NR_SYSCALL_BASE + 291)
 #define __NR_inotify_add_watch            (__NR_SYSCALL_BASE + 292)
 #define __NR_inotify_rm_watch             (__NR_SYSCALL_BASE + 293)
+#define __NR_eventfd2                     (__NR_SYSCALL_BASE + 328)
 #endif
 
 #if defined(__SH3__) || defined(__SH4__) 
@@ -234,6 +240,7 @@
 #define __NR_openat                       (__NR_SYSCALL_BASE + 295)
 #define __NR_madvise                      (__NR_SYSCALL_BASE + 219)
 #define __NR_mincore                      (__NR_SYSCALL_BASE + 218)
+#define __NR_pipe2                        (__NR_SYSCALL_BASE + 331)
 #define __NR_getdents64                   (__NR_SYSCALL_BASE + 220)
 #define __NR_fstatfs64                    (__NR_SYSCALL_BASE + 269)
 #define __NR_fstatat64                    (__NR_SYSCALL_BASE + 300)
@@ -269,14 +276,15 @@
 #define __NR_socketcall                   (__NR_SYSCALL_BASE + 102)
 #define __NR_socketcall                   (__NR_SYSCALL_BASE + 102)
 #define __NR___socketcall                 (__NR_SYSCALL_BASE + 102)
-#define __NR_ioprio_set                   (__NR_SYSCALL_BASE + 289)
-#define __NR_ioprio_get                   (__NR_SYSCALL_BASE + 290)
+#define __NR_ioprio_set                   (__NR_SYSCALL_BASE + 288)
+#define __NR_ioprio_get                   (__NR_SYSCALL_BASE + 289)
 #define __NR_epoll_create                 (__NR_SYSCALL_BASE + 254)
 #define __NR_epoll_ctl                    (__NR_SYSCALL_BASE + 255)
 #define __NR_epoll_wait                   (__NR_SYSCALL_BASE + 256)
 #define __NR_inotify_init                 (__NR_SYSCALL_BASE + 290)
 #define __NR_inotify_add_watch            (__NR_SYSCALL_BASE + 291)
 #define __NR_inotify_rm_watch             (__NR_SYSCALL_BASE + 292)
+#define __NR_eventfd2                     (__NR_SYSCALL_BASE + 328)
 #endif
 
 #endif