diff options
Diffstat (limited to 'libcutils')
35 files changed, 1908 insertions, 2364 deletions
diff --git a/libcutils/Android.mk b/libcutils/Android.mk index b016a42..9dc15d1 100644 --- a/libcutils/Android.mk +++ b/libcutils/Android.mk @@ -16,20 +16,13 @@ LOCAL_PATH := $(my-dir) include $(CLEAR_VARS) -ifeq ($(TARGET_CPU_SMP),true) - targetSmpFlag := -DANDROID_SMP=1 -else - targetSmpFlag := -DANDROID_SMP=0 -endif -hostSmpFlag := -DANDROID_SMP=0 - commonSources := \ hashmap.c \ atomic.c.arm \ native_handle.c \ config_utils.c \ - cpu_info.c \ load_file.c \ + strlcpy.c \ open_memstream.c \ strdup16to8.c \ strdup8to16.c \ @@ -39,6 +32,7 @@ commonSources := \ sched_policy.c \ iosched_policy.c \ str_parms.c \ + fs_config.c # some files must not be compiled when building against Mingw # they correspond to features not used by our host development tools @@ -67,38 +61,33 @@ ifneq ($(WINDOWS_HOST_ONLY),1) sockets.c \ commonHostSources += \ - ashmem-host.c + ashmem-host.c \ + trace-host.c endif -# Static library for host +# Shared and static library for host # ======================================================== LOCAL_MODULE := libcutils LOCAL_SRC_FILES := $(commonSources) $(commonHostSources) dlmalloc_stubs.c LOCAL_STATIC_LIBRARIES := liblog -LOCAL_CFLAGS += $(hostSmpFlag) ifneq ($(HOST_OS),windows) LOCAL_CFLAGS += -Werror endif LOCAL_MULTILIB := both -LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk include $(BUILD_HOST_STATIC_LIBRARY) - -# Tests for host -# ======================================================== include $(CLEAR_VARS) -LOCAL_MODULE := tst_str_parms -LOCAL_CFLAGS += -DTEST_STR_PARMS +LOCAL_MODULE := libcutils +LOCAL_SRC_FILES := $(commonSources) $(commonHostSources) dlmalloc_stubs.c +LOCAL_SHARED_LIBRARIES := liblog ifneq ($(HOST_OS),windows) LOCAL_CFLAGS += -Werror endif -LOCAL_SRC_FILES := str_parms.c hashmap.c memory.c -LOCAL_STATIC_LIBRARIES := liblog -LOCAL_MODULE_TAGS := optional -LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk -include $(BUILD_HOST_EXECUTABLE) +LOCAL_MULTILIB := both +include $(BUILD_HOST_SHARED_LIBRARY) + # Shared and static library for target @@ -111,40 +100,32 @@ LOCAL_SRC_FILES := $(commonSources) \ ashmem-dev.c \ debugger.c \ klog.c \ - memory.c \ partition_utils.c \ properties.c \ qtaguid.c \ - trace.c \ + trace-dev.c \ uevent.c \ -LOCAL_SRC_FILES_arm += \ - arch-arm/memset32.S \ +# arch-arm/memset32.S does not compile with Clang. +LOCAL_CLANG_ASFLAGS_arm += -no-integrated-as -LOCAL_SRC_FILES_arm64 += \ - arch-arm64/android_memset.S \ +LOCAL_SRC_FILES_arm += arch-arm/memset32.S +LOCAL_SRC_FILES_arm64 += arch-arm64/android_memset.S -LOCAL_SRC_FILES_mips += \ - arch-mips/android_memset.c \ +LOCAL_SRC_FILES_mips += arch-mips/android_memset.c +LOCAL_SRC_FILES_mips64 += arch-mips/android_memset.c LOCAL_SRC_FILES_x86 += \ arch-x86/android_memset16.S \ arch-x86/android_memset32.S \ LOCAL_SRC_FILES_x86_64 += \ - arch-x86_64/android_memset16_SSE2-atom.S \ - arch-x86_64/android_memset32_SSE2-atom.S \ - -LOCAL_CFLAGS_arm += -DHAVE_MEMSET16 -DHAVE_MEMSET32 -LOCAL_CFLAGS_arm64 += -DHAVE_MEMSET16 -DHAVE_MEMSET32 -LOCAL_CFLAGS_mips += -DHAVE_MEMSET16 -DHAVE_MEMSET32 -LOCAL_CFLAGS_x86 += -DHAVE_MEMSET16 -DHAVE_MEMSET32 -LOCAL_CFLAGS_x86_64 += -DHAVE_MEMSET16 -DHAVE_MEMSET32 + arch-x86_64/android_memset16.S \ + arch-x86_64/android_memset32.S \ LOCAL_C_INCLUDES := $(libcutils_c_includes) LOCAL_STATIC_LIBRARIES := liblog -LOCAL_CFLAGS += $(targetSmpFlag) -Werror -LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk +LOCAL_CFLAGS += -Werror -std=gnu90 include $(BUILD_STATIC_LIBRARY) include $(CLEAR_VARS) @@ -153,18 +134,8 @@ LOCAL_MODULE := libcutils # liblog symbols present in libcutils. LOCAL_WHOLE_STATIC_LIBRARIES := libcutils liblog LOCAL_SHARED_LIBRARIES := liblog -LOCAL_CFLAGS += $(targetSmpFlag) -Werror +LOCAL_CFLAGS += -Werror LOCAL_C_INCLUDES := $(libcutils_c_includes) -LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk include $(BUILD_SHARED_LIBRARY) -include $(CLEAR_VARS) -LOCAL_MODULE := tst_str_parms -LOCAL_CFLAGS += -DTEST_STR_PARMS -Werror -LOCAL_SRC_FILES := str_parms.c hashmap.c memory.c -LOCAL_SHARED_LIBRARIES := liblog -LOCAL_MODULE_TAGS := optional -LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk -include $(BUILD_EXECUTABLE) - include $(call all-makefiles-under,$(LOCAL_PATH)) diff --git a/libcutils/android_reboot.c b/libcutils/android_reboot.c index 5d98295..6ae23c1 100644 --- a/libcutils/android_reboot.c +++ b/libcutils/android_reboot.c @@ -20,6 +20,7 @@ #include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> +#include <mntent.h> #include <stdio.h> #include <string.h> @@ -33,37 +34,21 @@ */ static int remount_ro_done(void) { - FILE *f; - char mount_dev[256]; - char mount_dir[256]; - char mount_type[256]; - char mount_opts[256]; - int mount_freq; - int mount_passno; - int match; + FILE* fp; + struct mntent* mentry; int found_rw_fs = 0; - f = fopen("/proc/mounts", "r"); - if (! f) { - /* If we can't read /proc/mounts, just give up */ + if ((fp = setmntent("/proc/mounts", "r")) == NULL) { + /* If we can't read /proc/mounts, just give up. */ return 1; } - - do { - match = fscanf(f, "%255s %255s %255s %255s %d %d\n", - mount_dev, mount_dir, mount_type, - mount_opts, &mount_freq, &mount_passno); - mount_dev[255] = 0; - mount_dir[255] = 0; - mount_type[255] = 0; - mount_opts[255] = 0; - if ((match == 6) && !strncmp(mount_dev, "/dev/block", 10) && strstr(mount_opts, "rw,")) { + while ((mentry = getmntent(fp)) != NULL) { + if (!strncmp(mentry->mnt_fsname, "/dev/block", 10) && strstr(mentry->mnt_opts, "rw,")) { found_rw_fs = 1; break; } - } while (match != EOF); - - fclose(f); + } + endmntent(fp); return !found_rw_fs; } @@ -104,7 +89,7 @@ static void remount_ro(void) } -int android_reboot(int cmd, int flags UNUSED, char *arg) +int android_reboot(int cmd, int flags UNUSED, const char *arg) { int ret; diff --git a/libcutils/arch-mips/android_memset.c b/libcutils/arch-mips/android_memset.c index bbc99fe..a6b7496 100644 --- a/libcutils/arch-mips/android_memset.c +++ b/libcutils/arch-mips/android_memset.c @@ -1,31 +1,93 @@ /* - * Copyright (C) 2012 The Android Open Source Project + * Copyright (C) 2015 The Android Open Source Project + * All rights reserved. * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at + * 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. * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. + * 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 <cutils/memory.h> +/* generic C version for any machine */ -/* Use mips-assembler versions supplied by bionic/libc/arch-mips/string/memset.S: */ -void _memset16(uint16_t* dst, uint16_t value, size_t size); -void _memset32(uint32_t* dst, uint32_t value, size_t size); +#include <cutils/memory.h> void android_memset16(uint16_t* dst, uint16_t value, size_t size) { - _memset16(dst, value, size); + /* optimized version of + size >>= 1; + while (size--) + *dst++ = value; + */ + + size >>= 1; + if (((uintptr_t)dst & 2) && size) { + /* fill unpaired first elem separately */ + *dst++ = value; + size--; + } + /* dst is now 32-bit-aligned */ + /* fill body with 32-bit pairs */ + uint32_t value32 = (value << 16) | value; + android_memset32((uint32_t*) dst, value32, size<<1); + if (size & 1) { + dst[size-1] = value; /* fill unpaired last elem */ + } } + void android_memset32(uint32_t* dst, uint32_t value, size_t size) { - _memset32(dst, value, size); + /* optimized version of + size >>= 2; + while (size--) + *dst++ = value; + */ + + size >>= 2; + if (((uintptr_t)dst & 4) && size) { + /* fill unpaired first 32-bit elem separately */ + *dst++ = value; + size--; + } + /* dst is now 64-bit aligned */ + /* fill body with 64-bit pairs */ + uint64_t value64 = (((uint64_t)value)<<32) | value; + uint64_t* dst64 = (uint64_t*)dst; + + while (size >= 12) { + dst64[0] = value64; + dst64[1] = value64; + dst64[2] = value64; + dst64[3] = value64; + dst64[4] = value64; + dst64[5] = value64; + size -= 12; + dst64 += 6; + } + + /* fill remainder with original 32-bit single-elem loop */ + dst = (uint32_t*) dst64; + while (size--) { + *dst++ = value; + } + } diff --git a/libcutils/arch-x86/android_memset16.S b/libcutils/arch-x86/android_memset16.S index f8b79bd..cb2ff14 100644..100755 --- a/libcutils/arch-x86/android_memset16.S +++ b/libcutils/arch-x86/android_memset16.S @@ -13,13 +13,707 @@ * See the License for the specific language governing permissions and * limitations under the License. */ -/* - * Contributed by: Intel Corporation - */ -# include "cache_wrapper.S" -# undef __i686 -# define USE_AS_ANDROID -# define sse2_memset16_atom android_memset16 -# include "sse2-memset16-atom.S" +#include "cache.h" + +#ifndef MEMSET +# define MEMSET android_memset16 +#endif + +#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_BZERO16 +# 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 + +#if (defined SHARED || defined __PIC__) +# 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 __x86.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; \ + /* We loaded the jump table and adjuested EDX. Go. */ \ + jmp *%ebx + + .section .gnu.linkonce.t.__x86.get_pc_thunk.bx,"ax",@progbits + .globl __x86.get_pc_thunk.bx + .hidden __x86.get_pc_thunk.bx + ALIGN (4) + .type __x86.get_pc_thunk.bx,@function +__x86.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) \ + jmp *TABLE(,%ecx,4) +#endif + + .section .text.sse2,"ax",@progbits + ALIGN (4) +ENTRY (MEMSET) + ENTRANCE + + movl LEN(%esp), %ecx + shr $1, %ecx +#ifdef USE_AS_BZERO16 + xor %eax, %eax +#else + movzwl CHR(%esp), %eax + mov %eax, %edx + shl $16, %eax + or %edx, %eax +#endif + movl DEST(%esp), %edx + cmp $32, %ecx + jae L(32wordsormore) + +L(write_less32words): + lea (%edx, %ecx, 2), %edx + BRANCH_TO_JMPTBL_ENTRY (L(table_less32words)) + + + .pushsection .rodata.sse2,"a",@progbits + ALIGN (2) +L(table_less32words): + .int JMPTBL (L(write_0words), L(table_less32words)) + .int JMPTBL (L(write_1words), L(table_less32words)) + .int JMPTBL (L(write_2words), L(table_less32words)) + .int JMPTBL (L(write_3words), L(table_less32words)) + .int JMPTBL (L(write_4words), L(table_less32words)) + .int JMPTBL (L(write_5words), L(table_less32words)) + .int JMPTBL (L(write_6words), L(table_less32words)) + .int JMPTBL (L(write_7words), L(table_less32words)) + .int JMPTBL (L(write_8words), L(table_less32words)) + .int JMPTBL (L(write_9words), L(table_less32words)) + .int JMPTBL (L(write_10words), L(table_less32words)) + .int JMPTBL (L(write_11words), L(table_less32words)) + .int JMPTBL (L(write_12words), L(table_less32words)) + .int JMPTBL (L(write_13words), L(table_less32words)) + .int JMPTBL (L(write_14words), L(table_less32words)) + .int JMPTBL (L(write_15words), L(table_less32words)) + .int JMPTBL (L(write_16words), L(table_less32words)) + .int JMPTBL (L(write_17words), L(table_less32words)) + .int JMPTBL (L(write_18words), L(table_less32words)) + .int JMPTBL (L(write_19words), L(table_less32words)) + .int JMPTBL (L(write_20words), L(table_less32words)) + .int JMPTBL (L(write_21words), L(table_less32words)) + .int JMPTBL (L(write_22words), L(table_less32words)) + .int JMPTBL (L(write_23words), L(table_less32words)) + .int JMPTBL (L(write_24words), L(table_less32words)) + .int JMPTBL (L(write_25words), L(table_less32words)) + .int JMPTBL (L(write_26words), L(table_less32words)) + .int JMPTBL (L(write_27words), L(table_less32words)) + .int JMPTBL (L(write_28words), L(table_less32words)) + .int JMPTBL (L(write_29words), L(table_less32words)) + .int JMPTBL (L(write_30words), L(table_less32words)) + .int JMPTBL (L(write_31words), L(table_less32words)) + .popsection + + ALIGN (4) +L(write_28words): + movl %eax, -56(%edx) + movl %eax, -52(%edx) +L(write_24words): + movl %eax, -48(%edx) + movl %eax, -44(%edx) +L(write_20words): + movl %eax, -40(%edx) + movl %eax, -36(%edx) +L(write_16words): + movl %eax, -32(%edx) + movl %eax, -28(%edx) +L(write_12words): + movl %eax, -24(%edx) + movl %eax, -20(%edx) +L(write_8words): + movl %eax, -16(%edx) + movl %eax, -12(%edx) +L(write_4words): + movl %eax, -8(%edx) + movl %eax, -4(%edx) +L(write_0words): + SETRTNVAL + RETURN + + ALIGN (4) +L(write_29words): + movl %eax, -58(%edx) + movl %eax, -54(%edx) +L(write_25words): + movl %eax, -50(%edx) + movl %eax, -46(%edx) +L(write_21words): + movl %eax, -42(%edx) + movl %eax, -38(%edx) +L(write_17words): + movl %eax, -34(%edx) + movl %eax, -30(%edx) +L(write_13words): + movl %eax, -26(%edx) + movl %eax, -22(%edx) +L(write_9words): + movl %eax, -18(%edx) + movl %eax, -14(%edx) +L(write_5words): + movl %eax, -10(%edx) + movl %eax, -6(%edx) +L(write_1words): + mov %ax, -2(%edx) + SETRTNVAL + RETURN + + ALIGN (4) +L(write_30words): + movl %eax, -60(%edx) + movl %eax, -56(%edx) +L(write_26words): + movl %eax, -52(%edx) + movl %eax, -48(%edx) +L(write_22words): + movl %eax, -44(%edx) + movl %eax, -40(%edx) +L(write_18words): + movl %eax, -36(%edx) + movl %eax, -32(%edx) +L(write_14words): + movl %eax, -28(%edx) + movl %eax, -24(%edx) +L(write_10words): + movl %eax, -20(%edx) + movl %eax, -16(%edx) +L(write_6words): + movl %eax, -12(%edx) + movl %eax, -8(%edx) +L(write_2words): + movl %eax, -4(%edx) + SETRTNVAL + RETURN + + ALIGN (4) +L(write_31words): + movl %eax, -62(%edx) + movl %eax, -58(%edx) +L(write_27words): + movl %eax, -54(%edx) + movl %eax, -50(%edx) +L(write_23words): + movl %eax, -46(%edx) + movl %eax, -42(%edx) +L(write_19words): + movl %eax, -38(%edx) + movl %eax, -34(%edx) +L(write_15words): + movl %eax, -30(%edx) + movl %eax, -26(%edx) +L(write_11words): + movl %eax, -22(%edx) + movl %eax, -18(%edx) +L(write_7words): + movl %eax, -14(%edx) + movl %eax, -10(%edx) +L(write_3words): + movl %eax, -6(%edx) + movw %ax, -2(%edx) + SETRTNVAL + RETURN + + ALIGN (4) + +L(32wordsormore): + shl $1, %ecx + test $0x01, %edx + jz L(aligned2bytes) + mov %eax, (%edx) + mov %eax, -4(%edx, %ecx) + sub $2, %ecx + add $1, %edx + rol $8, %eax +L(aligned2bytes): +#ifdef USE_AS_BZERO16 + 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): + add %ecx, %edx + shr $1, %ecx + BRANCH_TO_JMPTBL_ENTRY (L(table_16_128bytes)) + + ALIGN (4) +L(128bytesormore): +#ifdef SHARED_CACHE_SIZE + PUSH (%ebx) + mov $SHARED_CACHE_SIZE, %ebx +#else +# if (defined SHARED || defined __PIC__) + call __x86.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 +# if (defined SHARED || defined __PIC__) +# define RESTORE_EBX_STATE + call __x86.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): + lea 128(%ecx), %ecx + add %ecx, %edx + shr $1, %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): + add %ecx, %edx + shr $1, %ecx + 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 || defined __PIC__) + POP (%ebx) +#endif + add %ecx, %edx + shr $1, %ecx + 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_2bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_4bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_6bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_8bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_10bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_12bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_14bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_16bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_18bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_20bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_22bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_24bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_26bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_28bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_30bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_32bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_34bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_36bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_38bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_40bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_42bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_44bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_46bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_48bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_50bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_52bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_54bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_56bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_58bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_60bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_62bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_64bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_66bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_68bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_70bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_72bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_74bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_76bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_78bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_80bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_82bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_84bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_86bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_88bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_90bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_92bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_94bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_96bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_98bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_100bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_102bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_104bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_106bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_108bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_110bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_112bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_114bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_116bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_118bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_120bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_122bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_124bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_126bytes), 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_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_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_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_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_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_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_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 +END (MEMSET) diff --git a/libcutils/arch-x86/android_memset32.S b/libcutils/arch-x86/android_memset32.S index 6249fce..f4326dc 100644..100755 --- a/libcutils/arch-x86/android_memset32.S +++ b/libcutils/arch-x86/android_memset32.S @@ -13,13 +13,498 @@ * See the License for the specific language governing permissions and * limitations under the License. */ -/* - * Contributed by: Intel Corporation - */ -# include "cache_wrapper.S" -# undef __i686 -# define USE_AS_ANDROID -# define sse2_memset32_atom android_memset32 -# include "sse2-memset32-atom.S" +#include "cache.h" + +#ifndef MEMSET +# define MEMSET android_memset32 +#endif + +#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_BZERO32 +# define DEST PARMS +# define LEN DEST+4 +# define SETRTNVAL +#else +# define DEST PARMS +# define DWDS DEST+4 +# define LEN DWDS+4 +# define SETRTNVAL movl DEST(%esp), %eax +#endif + +#if (defined SHARED || defined __PIC__) +# 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 __x86.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; \ + /* We loaded the jump table and adjuested EDX. Go. */ \ + jmp *%ebx + + .section .gnu.linkonce.t.__x86.get_pc_thunk.bx,"ax",@progbits + .globl __x86.get_pc_thunk.bx + .hidden __x86.get_pc_thunk.bx + ALIGN (4) + .type __x86.get_pc_thunk.bx,@function +__x86.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) \ + jmp *TABLE(,%ecx,4) +#endif + + .section .text.sse2,"ax",@progbits + ALIGN (4) +ENTRY (MEMSET) + ENTRANCE + + movl LEN(%esp), %ecx + shr $2, %ecx +#ifdef USE_AS_BZERO32 + xor %eax, %eax +#else + mov DWDS(%esp), %eax + mov %eax, %edx +#endif + movl DEST(%esp), %edx + cmp $16, %ecx + jae L(16dbwordsormore) + +L(write_less16dbwords): + lea (%edx, %ecx, 4), %edx + BRANCH_TO_JMPTBL_ENTRY (L(table_less16dbwords)) + + .pushsection .rodata.sse2,"a",@progbits + ALIGN (2) +L(table_less16dbwords): + .int JMPTBL (L(write_0dbwords), L(table_less16dbwords)) + .int JMPTBL (L(write_1dbwords), L(table_less16dbwords)) + .int JMPTBL (L(write_2dbwords), L(table_less16dbwords)) + .int JMPTBL (L(write_3dbwords), L(table_less16dbwords)) + .int JMPTBL (L(write_4dbwords), L(table_less16dbwords)) + .int JMPTBL (L(write_5dbwords), L(table_less16dbwords)) + .int JMPTBL (L(write_6dbwords), L(table_less16dbwords)) + .int JMPTBL (L(write_7dbwords), L(table_less16dbwords)) + .int JMPTBL (L(write_8dbwords), L(table_less16dbwords)) + .int JMPTBL (L(write_9dbwords), L(table_less16dbwords)) + .int JMPTBL (L(write_10dbwords), L(table_less16dbwords)) + .int JMPTBL (L(write_11dbwords), L(table_less16dbwords)) + .int JMPTBL (L(write_12dbwords), L(table_less16dbwords)) + .int JMPTBL (L(write_13dbwords), L(table_less16dbwords)) + .int JMPTBL (L(write_14dbwords), L(table_less16dbwords)) + .int JMPTBL (L(write_15dbwords), L(table_less16dbwords)) + .popsection + + ALIGN (4) +L(write_15dbwords): + movl %eax, -60(%edx) +L(write_14dbwords): + movl %eax, -56(%edx) +L(write_13dbwords): + movl %eax, -52(%edx) +L(write_12dbwords): + movl %eax, -48(%edx) +L(write_11dbwords): + movl %eax, -44(%edx) +L(write_10dbwords): + movl %eax, -40(%edx) +L(write_9dbwords): + movl %eax, -36(%edx) +L(write_8dbwords): + movl %eax, -32(%edx) +L(write_7dbwords): + movl %eax, -28(%edx) +L(write_6dbwords): + movl %eax, -24(%edx) +L(write_5dbwords): + movl %eax, -20(%edx) +L(write_4dbwords): + movl %eax, -16(%edx) +L(write_3dbwords): + movl %eax, -12(%edx) +L(write_2dbwords): + movl %eax, -8(%edx) +L(write_1dbwords): + movl %eax, -4(%edx) +L(write_0dbwords): + SETRTNVAL + RETURN + + ALIGN (4) +L(16dbwordsormore): + test $3, %edx + jz L(aligned4bytes) + mov %eax, (%edx) + mov %eax, -4(%edx, %ecx, 4) + sub $1, %ecx + rol $24, %eax + add $1, %edx + test $3, %edx + jz L(aligned4bytes) + ror $8, %eax + add $1, %edx + test $3, %edx + jz L(aligned4bytes) + ror $8, %eax + add $1, %edx +L(aligned4bytes): + shl $2, %ecx + +#ifdef USE_AS_BZERO32 + 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): + add %ecx, %edx + shr $2, %ecx + BRANCH_TO_JMPTBL_ENTRY (L(table_16_128bytes)) + + ALIGN (4) +L(128bytesormore): +#ifdef SHARED_CACHE_SIZE + PUSH (%ebx) + mov $SHARED_CACHE_SIZE, %ebx +#else +# if (defined SHARED || defined __PIC__) + call __x86.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 +# if (defined SHARED || defined __PIC__) +# define RESTORE_EBX_STATE + call __x86.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): + lea 128(%ecx), %ecx + add %ecx, %edx + shr $2, %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): + add %ecx, %edx + shr $2, %ecx + 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 || defined __PIC__) + POP (%ebx) +#endif + add %ecx, %edx + shr $2, %ecx + 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_4bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_8bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_12bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_16bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_20bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_24bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_28bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_32bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_36bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_40bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_44bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_48bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_52bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_56bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_60bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_64bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_68bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_72bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_76bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_80bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_84bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_88bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_92bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_96bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_100bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_104bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_108bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_112bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_116bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_120bytes), L(table_16_128bytes)) + .int JMPTBL (L(aligned_16_124bytes), 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_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_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_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 +END (MEMSET) diff --git a/libcutils/arch-x86/cache_wrapper.S b/libcutils/arch-x86/cache.h index 9eee25c..1c22fea 100644 --- a/libcutils/arch-x86/cache_wrapper.S +++ b/libcutils/arch-x86/cache.h @@ -13,9 +13,6 @@ * See the License for the specific language governing permissions and * limitations under the License. */ -/* - * Contributed by: Intel Corporation - */ #if defined(__slm__) /* Values are optimized for Silvermont */ diff --git a/libcutils/arch-x86/sse2-memset16-atom.S b/libcutils/arch-x86/sse2-memset16-atom.S deleted file mode 100755 index c2a762b..0000000 --- a/libcutils/arch-x86/sse2-memset16-atom.S +++ /dev/null @@ -1,722 +0,0 @@ -/* - * Copyright (C) 2010 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ -/* - * Contributed by: Intel Corporation - */ - -#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_BZERO16 -# define DEST PARMS -# define LEN DEST+4 -#else -# define DEST PARMS -# define CHR DEST+4 -# define LEN CHR+4 -#endif - -#if 1 -# define SETRTNVAL -#else -# define SETRTNVAL movl DEST(%esp), %eax -#endif - -#if (defined SHARED || defined __PIC__) -# 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; \ - /* 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) \ - jmp *TABLE(,%ecx,4) -#endif - - .section .text.sse2,"ax",@progbits - ALIGN (4) -ENTRY (sse2_memset16_atom) - ENTRANCE - - movl LEN(%esp), %ecx -#ifdef USE_AS_ANDROID - shr $1, %ecx -#endif -#ifdef USE_AS_BZERO16 - xor %eax, %eax -#else - movzwl CHR(%esp), %eax - mov %eax, %edx - shl $16, %eax - or %edx, %eax -#endif - movl DEST(%esp), %edx - cmp $32, %ecx - jae L(32wordsormore) - -L(write_less32words): - lea (%edx, %ecx, 2), %edx - BRANCH_TO_JMPTBL_ENTRY (L(table_less32words)) - - - .pushsection .rodata.sse2,"a",@progbits - ALIGN (2) -L(table_less32words): - .int JMPTBL (L(write_0words), L(table_less32words)) - .int JMPTBL (L(write_1words), L(table_less32words)) - .int JMPTBL (L(write_2words), L(table_less32words)) - .int JMPTBL (L(write_3words), L(table_less32words)) - .int JMPTBL (L(write_4words), L(table_less32words)) - .int JMPTBL (L(write_5words), L(table_less32words)) - .int JMPTBL (L(write_6words), L(table_less32words)) - .int JMPTBL (L(write_7words), L(table_less32words)) - .int JMPTBL (L(write_8words), L(table_less32words)) - .int JMPTBL (L(write_9words), L(table_less32words)) - .int JMPTBL (L(write_10words), L(table_less32words)) - .int JMPTBL (L(write_11words), L(table_less32words)) - .int JMPTBL (L(write_12words), L(table_less32words)) - .int JMPTBL (L(write_13words), L(table_less32words)) - .int JMPTBL (L(write_14words), L(table_less32words)) - .int JMPTBL (L(write_15words), L(table_less32words)) - .int JMPTBL (L(write_16words), L(table_less32words)) - .int JMPTBL (L(write_17words), L(table_less32words)) - .int JMPTBL (L(write_18words), L(table_less32words)) - .int JMPTBL (L(write_19words), L(table_less32words)) - .int JMPTBL (L(write_20words), L(table_less32words)) - .int JMPTBL (L(write_21words), L(table_less32words)) - .int JMPTBL (L(write_22words), L(table_less32words)) - .int JMPTBL (L(write_23words), L(table_less32words)) - .int JMPTBL (L(write_24words), L(table_less32words)) - .int JMPTBL (L(write_25words), L(table_less32words)) - .int JMPTBL (L(write_26words), L(table_less32words)) - .int JMPTBL (L(write_27words), L(table_less32words)) - .int JMPTBL (L(write_28words), L(table_less32words)) - .int JMPTBL (L(write_29words), L(table_less32words)) - .int JMPTBL (L(write_30words), L(table_less32words)) - .int JMPTBL (L(write_31words), L(table_less32words)) - .popsection - - ALIGN (4) -L(write_28words): - movl %eax, -56(%edx) - movl %eax, -52(%edx) -L(write_24words): - movl %eax, -48(%edx) - movl %eax, -44(%edx) -L(write_20words): - movl %eax, -40(%edx) - movl %eax, -36(%edx) -L(write_16words): - movl %eax, -32(%edx) - movl %eax, -28(%edx) -L(write_12words): - movl %eax, -24(%edx) - movl %eax, -20(%edx) -L(write_8words): - movl %eax, -16(%edx) - movl %eax, -12(%edx) -L(write_4words): - movl %eax, -8(%edx) - movl %eax, -4(%edx) -L(write_0words): - SETRTNVAL - RETURN - - ALIGN (4) -L(write_29words): - movl %eax, -58(%edx) - movl %eax, -54(%edx) -L(write_25words): - movl %eax, -50(%edx) - movl %eax, -46(%edx) -L(write_21words): - movl %eax, -42(%edx) - movl %eax, -38(%edx) -L(write_17words): - movl %eax, -34(%edx) - movl %eax, -30(%edx) -L(write_13words): - movl %eax, -26(%edx) - movl %eax, -22(%edx) -L(write_9words): - movl %eax, -18(%edx) - movl %eax, -14(%edx) -L(write_5words): - movl %eax, -10(%edx) - movl %eax, -6(%edx) -L(write_1words): - mov %ax, -2(%edx) - SETRTNVAL - RETURN - - ALIGN (4) -L(write_30words): - movl %eax, -60(%edx) - movl %eax, -56(%edx) -L(write_26words): - movl %eax, -52(%edx) - movl %eax, -48(%edx) -L(write_22words): - movl %eax, -44(%edx) - movl %eax, -40(%edx) -L(write_18words): - movl %eax, -36(%edx) - movl %eax, -32(%edx) -L(write_14words): - movl %eax, -28(%edx) - movl %eax, -24(%edx) -L(write_10words): - movl %eax, -20(%edx) - movl %eax, -16(%edx) -L(write_6words): - movl %eax, -12(%edx) - movl %eax, -8(%edx) -L(write_2words): - movl %eax, -4(%edx) - SETRTNVAL - RETURN - - ALIGN (4) -L(write_31words): - movl %eax, -62(%edx) - movl %eax, -58(%edx) -L(write_27words): - movl %eax, -54(%edx) - movl %eax, -50(%edx) -L(write_23words): - movl %eax, -46(%edx) - movl %eax, -42(%edx) -L(write_19words): - movl %eax, -38(%edx) - movl %eax, -34(%edx) -L(write_15words): - movl %eax, -30(%edx) - movl %eax, -26(%edx) -L(write_11words): - movl %eax, -22(%edx) - movl %eax, -18(%edx) -L(write_7words): - movl %eax, -14(%edx) - movl %eax, -10(%edx) -L(write_3words): - movl %eax, -6(%edx) - movw %ax, -2(%edx) - SETRTNVAL - RETURN - - ALIGN (4) - -L(32wordsormore): - shl $1, %ecx - test $0x01, %edx - jz L(aligned2bytes) - mov %eax, (%edx) - mov %eax, -4(%edx, %ecx) - sub $2, %ecx - add $1, %edx - rol $8, %eax -L(aligned2bytes): -#ifdef USE_AS_BZERO16 - 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): - add %ecx, %edx - shr $1, %ecx - BRANCH_TO_JMPTBL_ENTRY (L(table_16_128bytes)) - - ALIGN (4) -L(128bytesormore): -#ifdef SHARED_CACHE_SIZE - PUSH (%ebx) - mov $SHARED_CACHE_SIZE, %ebx -#else -# if (defined SHARED || defined __PIC__) - 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 -# if (defined SHARED || defined __PIC__) -# 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): - lea 128(%ecx), %ecx - add %ecx, %edx - shr $1, %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): - add %ecx, %edx - shr $1, %ecx - 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 || defined __PIC__) - POP (%ebx) -#endif - add %ecx, %edx - shr $1, %ecx - 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_2bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_4bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_6bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_8bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_10bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_12bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_14bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_16bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_18bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_20bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_22bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_24bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_26bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_28bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_30bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_32bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_34bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_36bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_38bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_40bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_42bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_44bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_46bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_48bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_50bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_52bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_54bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_56bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_58bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_60bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_62bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_64bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_66bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_68bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_70bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_72bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_74bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_76bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_78bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_80bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_82bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_84bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_86bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_88bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_90bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_92bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_94bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_96bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_98bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_100bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_102bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_104bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_106bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_108bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_110bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_112bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_114bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_116bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_118bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_120bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_122bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_124bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_126bytes), 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_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_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_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_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_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_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_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 - -END (sse2_memset16_atom) diff --git a/libcutils/arch-x86/sse2-memset32-atom.S b/libcutils/arch-x86/sse2-memset32-atom.S deleted file mode 100755 index 05eb64f..0000000 --- a/libcutils/arch-x86/sse2-memset32-atom.S +++ /dev/null @@ -1,513 +0,0 @@ -/* - * Copyright (C) 2010 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ -/* - * Contributed by: Intel Corporation - */ - -#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_BZERO32 -# define DEST PARMS -# define LEN DEST+4 -#else -# define DEST PARMS -# define DWDS DEST+4 -# define LEN DWDS+4 -#endif - -#ifdef USE_AS_WMEMSET32 -# define SETRTNVAL movl DEST(%esp), %eax -#else -# define SETRTNVAL -#endif - -#if (defined SHARED || defined __PIC__) -# 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; \ - /* 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) \ - jmp *TABLE(,%ecx,4) -#endif - - .section .text.sse2,"ax",@progbits - ALIGN (4) -ENTRY (sse2_memset32_atom) - ENTRANCE - - movl LEN(%esp), %ecx -#ifdef USE_AS_ANDROID - shr $2, %ecx -#endif -#ifdef USE_AS_BZERO32 - xor %eax, %eax -#else - mov DWDS(%esp), %eax - mov %eax, %edx -#endif - movl DEST(%esp), %edx - cmp $16, %ecx - jae L(16dbwordsormore) - -L(write_less16dbwords): - lea (%edx, %ecx, 4), %edx - BRANCH_TO_JMPTBL_ENTRY (L(table_less16dbwords)) - - .pushsection .rodata.sse2,"a",@progbits - ALIGN (2) -L(table_less16dbwords): - .int JMPTBL (L(write_0dbwords), L(table_less16dbwords)) - .int JMPTBL (L(write_1dbwords), L(table_less16dbwords)) - .int JMPTBL (L(write_2dbwords), L(table_less16dbwords)) - .int JMPTBL (L(write_3dbwords), L(table_less16dbwords)) - .int JMPTBL (L(write_4dbwords), L(table_less16dbwords)) - .int JMPTBL (L(write_5dbwords), L(table_less16dbwords)) - .int JMPTBL (L(write_6dbwords), L(table_less16dbwords)) - .int JMPTBL (L(write_7dbwords), L(table_less16dbwords)) - .int JMPTBL (L(write_8dbwords), L(table_less16dbwords)) - .int JMPTBL (L(write_9dbwords), L(table_less16dbwords)) - .int JMPTBL (L(write_10dbwords), L(table_less16dbwords)) - .int JMPTBL (L(write_11dbwords), L(table_less16dbwords)) - .int JMPTBL (L(write_12dbwords), L(table_less16dbwords)) - .int JMPTBL (L(write_13dbwords), L(table_less16dbwords)) - .int JMPTBL (L(write_14dbwords), L(table_less16dbwords)) - .int JMPTBL (L(write_15dbwords), L(table_less16dbwords)) - .popsection - - ALIGN (4) -L(write_15dbwords): - movl %eax, -60(%edx) -L(write_14dbwords): - movl %eax, -56(%edx) -L(write_13dbwords): - movl %eax, -52(%edx) -L(write_12dbwords): - movl %eax, -48(%edx) -L(write_11dbwords): - movl %eax, -44(%edx) -L(write_10dbwords): - movl %eax, -40(%edx) -L(write_9dbwords): - movl %eax, -36(%edx) -L(write_8dbwords): - movl %eax, -32(%edx) -L(write_7dbwords): - movl %eax, -28(%edx) -L(write_6dbwords): - movl %eax, -24(%edx) -L(write_5dbwords): - movl %eax, -20(%edx) -L(write_4dbwords): - movl %eax, -16(%edx) -L(write_3dbwords): - movl %eax, -12(%edx) -L(write_2dbwords): - movl %eax, -8(%edx) -L(write_1dbwords): - movl %eax, -4(%edx) -L(write_0dbwords): - SETRTNVAL - RETURN - - ALIGN (4) -L(16dbwordsormore): - test $3, %edx - jz L(aligned4bytes) - mov %eax, (%edx) - mov %eax, -4(%edx, %ecx, 4) - sub $1, %ecx - rol $24, %eax - add $1, %edx - test $3, %edx - jz L(aligned4bytes) - ror $8, %eax - add $1, %edx - test $3, %edx - jz L(aligned4bytes) - ror $8, %eax - add $1, %edx -L(aligned4bytes): - shl $2, %ecx - -#ifdef USE_AS_BZERO32 - 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): - add %ecx, %edx - shr $2, %ecx - BRANCH_TO_JMPTBL_ENTRY (L(table_16_128bytes)) - - ALIGN (4) -L(128bytesormore): -#ifdef SHARED_CACHE_SIZE - PUSH (%ebx) - mov $SHARED_CACHE_SIZE, %ebx -#else -# if (defined SHARED || defined __PIC__) - 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 -# if (defined SHARED || defined __PIC__) -# 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): - lea 128(%ecx), %ecx - add %ecx, %edx - shr $2, %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): - add %ecx, %edx - shr $2, %ecx - 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 || defined __PIC__) - POP (%ebx) -#endif - add %ecx, %edx - shr $2, %ecx - 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_4bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_8bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_12bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_16bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_20bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_24bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_28bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_32bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_36bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_40bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_44bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_48bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_52bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_56bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_60bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_64bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_68bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_72bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_76bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_80bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_84bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_88bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_92bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_96bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_100bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_104bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_108bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_112bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_116bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_120bytes), L(table_16_128bytes)) - .int JMPTBL (L(aligned_16_124bytes), 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_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_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_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 - -END (sse2_memset32_atom) diff --git a/libcutils/arch-x86_64/android_memset16_SSE2-atom.S b/libcutils/arch-x86_64/android_memset16.S index 48a10ed..cb6d4a3 100644 --- a/libcutils/arch-x86_64/android_memset16_SSE2-atom.S +++ b/libcutils/arch-x86_64/android_memset16.S @@ -13,12 +13,13 @@ * See the License for the specific language governing permissions and * limitations under the License. */ -/* - * Contributed by: Intel Corporation - */ #include "cache.h" +#ifndef MEMSET +# define MEMSET android_memset16 +#endif + #ifndef L # define L(label) .L##label #endif @@ -63,7 +64,7 @@ name: \ .section .text.sse2,"ax",@progbits ALIGN (4) -ENTRY (android_memset16) // Address in rdi +ENTRY (MEMSET) // Address in rdi shr $1, %rdx // Count in rdx movzwl %si, %ecx /* Fill the whole ECX with pattern. */ @@ -561,4 +562,4 @@ L(aligned_16_14bytes): movw %cx, -2(%rdi) ret -END (android_memset16) +END (MEMSET) diff --git a/libcutils/arch-x86_64/android_memset32_SSE2-atom.S b/libcutils/arch-x86_64/android_memset32.S index 4bdea8e..1514aa2 100644 --- a/libcutils/arch-x86_64/android_memset32_SSE2-atom.S +++ b/libcutils/arch-x86_64/android_memset32.S @@ -13,12 +13,13 @@ * See the License for the specific language governing permissions and * limitations under the License. */ -/* - * Contributed by: Intel Corporation - */ #include "cache.h" +#ifndef MEMSET +# define MEMSET android_memset32 +#endif + #ifndef L # define L(label) .L##label #endif @@ -63,7 +64,7 @@ name: \ .section .text.sse2,"ax",@progbits ALIGN (4) -ENTRY (android_memset32) // Address in rdi +ENTRY (MEMSET) // Address in rdi shr $2, %rdx // Count in rdx movl %esi, %ecx // Pattern in ecx @@ -369,4 +370,4 @@ L(aligned_16_12bytes): movl %ecx, -4(%rdi) ret -END (android_memset32) +END (MEMSET) diff --git a/libcutils/arch-x86_64/cache.h b/libcutils/arch-x86_64/cache.h index ab5dd2f..f144309 100644 --- a/libcutils/arch-x86_64/cache.h +++ b/libcutils/arch-x86_64/cache.h @@ -13,19 +13,10 @@ * See the License for the specific language governing permissions and * limitations under the License. */ -/* - * Contributed by: Intel Corporation - */ -#if defined(__slm__) /* Values are optimized for Silvermont */ #define SHARED_CACHE_SIZE (1024*1024) /* Silvermont L2 Cache */ #define DATA_CACHE_SIZE (24*1024) /* Silvermont L1 Data Cache */ -#else -/* Values are optimized for Atom */ -#define SHARED_CACHE_SIZE (512*1024) /* Atom L2 Cache */ -#define DATA_CACHE_SIZE (24*1024) /* Atom L1 Data Cache */ -#endif #define SHARED_CACHE_SIZE_HALF (SHARED_CACHE_SIZE / 2) #define DATA_CACHE_SIZE_HALF (DATA_CACHE_SIZE / 2) diff --git a/libcutils/ashmem-host.c b/libcutils/ashmem-host.c index 4ac4f57..abc4f94 100644 --- a/libcutils/ashmem-host.c +++ b/libcutils/ashmem-host.c @@ -22,7 +22,6 @@ #include <errno.h> #include <fcntl.h> #include <limits.h> -#include <pthread.h> #include <stdbool.h> #include <stdio.h> #include <stdlib.h> @@ -33,51 +32,18 @@ #include <unistd.h> #include <cutils/ashmem.h> +#include <utils/Compat.h> #ifndef __unused #define __unused __attribute__((__unused__)) #endif -static pthread_once_t seed_initialized = PTHREAD_ONCE_INIT; -static void initialize_random() { - srand(time(NULL) + getpid()); -} - int ashmem_create_region(const char *ignored __unused, size_t size) { - static const char txt[] = "abcdefghijklmnopqrstuvwxyz" - "ABCDEFGHIJKLMNOPQRSTUVWXYZ"; - char name[64]; - unsigned int retries = 0; - pid_t pid = getpid(); - int fd; - if (pthread_once(&seed_initialized, &initialize_random) != 0) { - return -1; - } - do { - /* not beautiful, its just wolf-like loop unrolling */ - snprintf(name, sizeof(name), "/tmp/android-ashmem-%d-%c%c%c%c%c%c%c%c", - pid, - txt[(int) ((sizeof(txt) - 1) * (rand() / (RAND_MAX + 1.0)))], - txt[(int) ((sizeof(txt) - 1) * (rand() / (RAND_MAX + 1.0)))], - txt[(int) ((sizeof(txt) - 1) * (rand() / (RAND_MAX + 1.0)))], - txt[(int) ((sizeof(txt) - 1) * (rand() / (RAND_MAX + 1.0)))], - txt[(int) ((sizeof(txt) - 1) * (rand() / (RAND_MAX + 1.0)))], - txt[(int) ((sizeof(txt) - 1) * (rand() / (RAND_MAX + 1.0)))], - txt[(int) ((sizeof(txt) - 1) * (rand() / (RAND_MAX + 1.0)))], - txt[(int) ((sizeof(txt) - 1) * (rand() / (RAND_MAX + 1.0)))]); - - /* open O_EXCL & O_CREAT: we are either the sole owner or we fail */ - fd = open(name, O_RDWR | O_CREAT | O_EXCL, 0600); - if (fd == -1) { - /* unlikely, but if we failed because `name' exists, retry */ - if (errno != EEXIST || ++retries >= 6) { - return -1; - } - } - } while (fd == -1); - /* truncate the file to `len' bytes */ - if (ftruncate(fd, size) != -1 && unlink(name) != -1) { + char template[PATH_MAX]; + snprintf(template, sizeof(template), "/tmp/android-ashmem-%d-XXXXXXXXX", getpid()); + int fd = mkstemp(template); + if (fd != -1 && TEMP_FAILURE_RETRY(ftruncate(fd, size)) != -1 && unlink(template) != -1) { return fd; } close(fd); @@ -102,9 +68,7 @@ int ashmem_unpin_region(int fd __unused, size_t offset __unused, size_t len __un int ashmem_get_size_region(int fd) { struct stat buf; - int result; - - result = fstat(fd, &buf); + int result = fstat(fd, &buf); if (result == -1) { return -1; } @@ -116,5 +80,5 @@ int ashmem_get_size_region(int fd) return -1; } - return (int)buf.st_size; // TODO: care about overflow (> 2GB file)? + return buf.st_size; } diff --git a/libcutils/atomic.c b/libcutils/atomic.c index 1484ef8..d34aa00 100644 --- a/libcutils/atomic.c +++ b/libcutils/atomic.c @@ -14,6 +14,13 @@ * limitations under the License. */ +/* + * Generate non-inlined versions of android_atomic functions. + * Nobody should be using these, but some binary blobs currently (late 2014) + * are. + * If you read this in 2015 or later, please try to delete this file. + */ + #define ANDROID_ATOMIC_INLINE -#include <cutils/atomic-inline.h> +#include <cutils/atomic.h> diff --git a/libcutils/cpu_info.c b/libcutils/cpu_info.c deleted file mode 100644 index 21fa1dc..0000000 --- a/libcutils/cpu_info.c +++ /dev/null @@ -1,82 +0,0 @@ -/* -** Copyright 2007, The Android Open Source Project -** -** Licensed under the Apache License, Version 2.0 (the "License"); -** you may not use this file except in compliance with the License. -** You may obtain a copy of the License at -** -** http://www.apache.org/licenses/LICENSE-2.0 -** -** Unless required by applicable law or agreed to in writing, software -** distributed under the License is distributed on an "AS IS" BASIS, -** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -** See the License for the specific language governing permissions and -** limitations under the License. -*/ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#include <cutils/cpu_info.h> - -// we cache the serial number here. -// this is also used as a fgets() line buffer when we are reading /proc/cpuinfo -static char serial_number[100] = { 0 }; - -extern const char* get_cpu_serial_number(void) -{ - if (serial_number[0] == 0) - { - FILE* file; - char* chp, *end; - char* whitespace; - - // read serial number from /proc/cpuinfo - file = fopen("proc/cpuinfo", "r"); - if (! file) - return NULL; - - while ((chp = fgets(serial_number, sizeof(serial_number), file)) != NULL) - { - // look for something like "Serial : 999206122a03591c" - - if (strncmp(chp, "Serial", 6) != 0) - continue; - - chp = strchr(chp, ':'); - if (!chp) - continue; - - // skip colon and whitespace - while ( *(++chp) == ' ') {} - - // truncate trailing whitespace - end = chp; - while (*end && *end != ' ' && *end != '\t' && *end != '\n' && *end != '\r') - ++end; - *end = 0; - - whitespace = strchr(chp, ' '); - if (whitespace) - *whitespace = 0; - whitespace = strchr(chp, '\t'); - if (whitespace) - *whitespace = 0; - whitespace = strchr(chp, '\r'); - if (whitespace) - *whitespace = 0; - whitespace = strchr(chp, '\n'); - if (whitespace) - *whitespace = 0; - - // shift serial number to beginning of the buffer - memmove(serial_number, chp, strlen(chp) + 1); - break; - } - - fclose(file); - } - - return (serial_number[0] ? serial_number : NULL); -} diff --git a/libcutils/debugger.c b/libcutils/debugger.c index b8a2efc..4558719 100644 --- a/libcutils/debugger.c +++ b/libcutils/debugger.c @@ -29,33 +29,6 @@ #define LOG_TAG "DEBUG" #include <log/log.h> -#if defined(__LP64__) -#include <elf.h> - -static bool is32bit(pid_t tid) { - char* exeline; - if (asprintf(&exeline, "/proc/%d/exe", tid) == -1) { - return false; - } - int fd = open(exeline, O_RDONLY | O_CLOEXEC); - free(exeline); - if (fd == -1) { - return false; - } - - char ehdr[EI_NIDENT]; - ssize_t bytes = read(fd, &ehdr, sizeof(ehdr)); - close(fd); - if (bytes != (ssize_t) sizeof(ehdr) || memcmp(ELFMAG, ehdr, SELFMAG) != 0) { - return false; - } - if (ehdr[EI_CLASS] == ELFCLASS32) { - return true; - } - return false; -} -#endif - static int send_request(int sock_fd, void* msg_ptr, size_t msg_len) { int result = 0; if (TEMP_FAILURE_RETRY(write(sock_fd, msg_ptr, msg_len)) != (ssize_t) msg_len) { @@ -70,34 +43,12 @@ static int send_request(int sock_fd, void* msg_ptr, size_t msg_len) { } static int make_dump_request(debugger_action_t action, pid_t tid, int timeout_secs) { - const char* socket_name; debugger_msg_t msg; - size_t msg_len; - void* msg_ptr; - -#if defined(__LP64__) - debugger32_msg_t msg32; - if (is32bit(tid)) { - msg_len = sizeof(debugger32_msg_t); - memset(&msg32, 0, msg_len); - msg32.tid = tid; - msg32.action = action; - msg_ptr = &msg32; - - socket_name = DEBUGGER32_SOCKET_NAME; - } else -#endif - { - msg_len = sizeof(debugger_msg_t); - memset(&msg, 0, msg_len); - msg.tid = tid; - msg.action = action; - msg_ptr = &msg; - - socket_name = DEBUGGER_SOCKET_NAME; - } + memset(&msg, 0, sizeof(msg)); + msg.tid = tid; + msg.action = action; - int sock_fd = socket_local_client(socket_name, ANDROID_SOCKET_NAMESPACE_ABSTRACT, + int sock_fd = socket_local_client(DEBUGGER_SOCKET_NAME, ANDROID_SOCKET_NAMESPACE_ABSTRACT, SOCK_STREAM | SOCK_CLOEXEC); if (sock_fd < 0) { return -1; @@ -116,7 +67,7 @@ static int make_dump_request(debugger_action_t action, pid_t tid, int timeout_se } } - if (send_request(sock_fd, msg_ptr, msg_len) < 0) { + if (send_request(sock_fd, &msg, sizeof(msg)) < 0) { TEMP_FAILURE_RETRY(close(sock_fd)); return -1; } diff --git a/libcutils/dir_hash.c b/libcutils/dir_hash.c deleted file mode 100644 index 098b5db..0000000 --- a/libcutils/dir_hash.c +++ /dev/null @@ -1,335 +0,0 @@ -/* - * Copyright (C) 2007 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#include <dirent.h> -#include <errno.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <sha1.h> -#include <unistd.h> -#include <limits.h> - -#include <sys/stat.h> - -#include <netinet/in.h> -#include <resolv.h> - -#include <cutils/dir_hash.h> - -/** - * Copies, if it fits within max_output_string bytes, into output_string - * a hash of the contents, size, permissions, uid, and gid of the file - * specified by path, using the specified algorithm. Returns the length - * of the output string, or a negative number if the buffer is too short. - */ -int get_file_hash(HashAlgorithm algorithm, const char *path, - char *output_string, size_t max_output_string) { - SHA1_CTX context; - struct stat sb; - unsigned char md[SHA1_DIGEST_LENGTH]; - int used; - size_t n; - - if (algorithm != SHA_1) { - errno = EINVAL; - return -1; - } - - if (stat(path, &sb) != 0) { - return -1; - } - - if (S_ISLNK(sb.st_mode)) { - char buf[PATH_MAX]; - int len; - - len = readlink(path, buf, sizeof(buf)); - if (len < 0) { - return -1; - } - - SHA1Init(&context); - SHA1Update(&context, (unsigned char *) buf, len); - SHA1Final(md, &context); - } else if (S_ISREG(sb.st_mode)) { - char buf[10000]; - FILE *f = fopen(path, "rb"); - int len; - - if (f == NULL) { - return -1; - } - - SHA1Init(&context); - - while ((len = fread(buf, 1, sizeof(buf), f)) > 0) { - SHA1Update(&context, (unsigned char *) buf, len); - } - - if (ferror(f)) { - fclose(f); - return -1; - } - - fclose(f); - SHA1Final(md, &context); - } - - if (S_ISLNK(sb.st_mode) || S_ISREG(sb.st_mode)) { - used = b64_ntop(md, SHA1_DIGEST_LENGTH, - output_string, max_output_string); - if (used < 0) { - errno = ENOSPC; - return -1; - } - - n = snprintf(output_string + used, max_output_string - used, - " %d 0%o %d %d", (int) sb.st_size, sb.st_mode, - (int) sb.st_uid, (int) sb.st_gid); - } else { - n = snprintf(output_string, max_output_string, - "- - 0%o %d %d", sb.st_mode, - (int) sb.st_uid, (int) sb.st_gid); - } - - if (n >= max_output_string - used) { - errno = ENOSPC; - return -(used + n); - } - - return used + n; -} - -struct list { - char *name; - struct list *next; -}; - -static int cmp(const void *a, const void *b) { - struct list *const *ra = a; - struct list *const *rb = b; - - return strcmp((*ra)->name, (*rb)->name); -} - -static int recurse(HashAlgorithm algorithm, const char *directory_path, - struct list **out) { - struct list *list = NULL; - struct list *f; - - struct dirent *de; - DIR *d = opendir(directory_path); - - if (d == NULL) { - return -1; - } - - while ((de = readdir(d)) != NULL) { - if (strcmp(de->d_name, ".") == 0) { - continue; - } - if (strcmp(de->d_name, "..") == 0) { - continue; - } - - char *name = malloc(strlen(de->d_name) + 1); - struct list *node = malloc(sizeof(struct list)); - - if (name == NULL || node == NULL) { - struct list *next; - for (f = list; f != NULL; f = next) { - next = f->next; - free(f->name); - free(f); - } - - free(name); - free(node); - closedir(d); - return -1; - } - - strcpy(name, de->d_name); - - node->name = name; - node->next = list; - list = node; - } - - closedir(d); - - for (f = list; f != NULL; f = f->next) { - struct stat sb; - char *name; - char outstr[NAME_MAX + 100]; - char *keep; - struct list *res; - - name = malloc(strlen(f->name) + strlen(directory_path) + 2); - if (name == NULL) { - struct list *next; - for (f = list; f != NULL; f = f->next) { - next = f->next; - free(f->name); - free(f); - } - for (f = *out; f != NULL; f = f->next) { - next = f->next; - free(f->name); - free(f); - } - *out = NULL; - return -1; - } - - sprintf(name, "%s/%s", directory_path, f->name); - - int len = get_file_hash(algorithm, name, - outstr, sizeof(outstr)); - if (len < 0) { - // should not happen - return -1; - } - - keep = malloc(len + strlen(name) + 3); - res = malloc(sizeof(struct list)); - - if (keep == NULL || res == NULL) { - struct list *next; - for (f = list; f != NULL; f = f->next) { - next = f->next; - free(f->name); - free(f); - } - for (f = *out; f != NULL; f = f->next) { - next = f->next; - free(f->name); - free(f); - } - *out = NULL; - - free(keep); - free(res); - return -1; - } - - sprintf(keep, "%s %s\n", name, outstr); - - res->name = keep; - res->next = *out; - *out = res; - - if ((stat(name, &sb) == 0) && S_ISDIR(sb.st_mode)) { - if (recurse(algorithm, name, out) < 0) { - struct list *next; - for (f = list; f != NULL; f = next) { - next = f->next; - free(f->name); - free(f); - } - - return -1; - } - } - } - - struct list *next; - for (f = list; f != NULL; f = next) { - next = f->next; - - free(f->name); - free(f); - } -} - -/** - * Allocates a string containing the names and hashes of all files recursively - * reached under the specified directory_path, using the specified algorithm. - * The string is returned as *output_string; the return value is the length - * of the string, or a negative number if there was a failure. - */ -int get_recursive_hash_manifest(HashAlgorithm algorithm, - const char *directory_path, - char **output_string) { - struct list *out = NULL; - struct list *r; - struct list **list; - int count = 0; - int len = 0; - int retlen = 0; - int i; - char *buf; - - if (recurse(algorithm, directory_path, &out) < 0) { - return -1; - } - - for (r = out; r != NULL; r = r->next) { - count++; - len += strlen(r->name); - } - - list = malloc(count * sizeof(struct list *)); - if (list == NULL) { - struct list *next; - for (r = out; r != NULL; r = next) { - next = r->next; - free(r->name); - free(r); - } - return -1; - } - - count = 0; - for (r = out; r != NULL; r = r->next) { - list[count++] = r; - } - - qsort(list, count, sizeof(struct list *), cmp); - - buf = malloc(len + 1); - if (buf == NULL) { - struct list *next; - for (r = out; r != NULL; r = next) { - next = r->next; - free(r->name); - free(r); - } - free(list); - return -1; - } - - for (i = 0; i < count; i++) { - int n = strlen(list[i]->name); - - strcpy(buf + retlen, list[i]->name); - retlen += n; - } - - free(list); - - struct list *next; - for (r = out; r != NULL; r = next) { - next = r->next; - - free(r->name); - free(r); - } - - *output_string = buf; - return retlen; -} diff --git a/libcutils/fs_config.c b/libcutils/fs_config.c new file mode 100644 index 0000000..9f8023e --- /dev/null +++ b/libcutils/fs_config.c @@ -0,0 +1,273 @@ +/* + * Copyright (C) 2007 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +/* This file is used to define the properties of the filesystem +** images generated by build tools (mkbootfs and mkyaffs2image) and +** by the device side of adb. +*/ + +#define LOG_TAG "fs_config" + +#define _GNU_SOURCE + +#include <errno.h> +#include <fcntl.h> +#include <stdbool.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/stat.h> +#include <sys/types.h> + +#include <log/log.h> +#include <private/android_filesystem_config.h> +#include <utils/Compat.h> + +#ifndef O_BINARY +#define O_BINARY 0 +#endif + +/* The following structure is stored little endian */ +struct fs_path_config_from_file { + uint16_t len; + uint16_t mode; + uint16_t uid; + uint16_t gid; + uint64_t capabilities; + char prefix[]; +} __attribute__((__aligned__(sizeof(uint64_t)))); + +/* My kingdom for <endian.h> */ +static inline uint16_t get2LE(const uint8_t* src) +{ + return src[0] | (src[1] << 8); +} + +static inline uint64_t get8LE(const uint8_t* src) +{ + uint32_t low, high; + + low = src[0] | (src[1] << 8) | (src[2] << 16) | (src[3] << 24); + high = src[4] | (src[5] << 8) | (src[6] << 16) | (src[7] << 24); + return ((uint64_t) high << 32) | (uint64_t) low; +} + +#define ALIGN(x, alignment) ( ((x) + ((alignment) - 1)) & ~((alignment) - 1) ) + +/* Rules for directories. +** These rules are applied based on "first match", so they +** should start with the most specific path and work their +** way up to the root. +*/ + +static const struct fs_path_config android_dirs[] = { + { 00770, AID_SYSTEM, AID_CACHE, 0, "cache" }, + { 00771, AID_SYSTEM, AID_SYSTEM, 0, "data/app" }, + { 00771, AID_SYSTEM, AID_SYSTEM, 0, "data/app-private" }, + { 00771, AID_ROOT, AID_ROOT, 0, "data/dalvik-cache" }, + { 00771, AID_SYSTEM, AID_SYSTEM, 0, "data/data" }, + { 00771, AID_SHELL, AID_SHELL, 0, "data/local/tmp" }, + { 00771, AID_SHELL, AID_SHELL, 0, "data/local" }, + { 01771, AID_SYSTEM, AID_MISC, 0, "data/misc" }, + { 00770, AID_DHCP, AID_DHCP, 0, "data/misc/dhcp" }, + { 00771, AID_SHARED_RELRO, AID_SHARED_RELRO, 0, "data/misc/shared_relro" }, + { 00775, AID_MEDIA_RW, AID_MEDIA_RW, 0, "data/media" }, + { 00775, AID_MEDIA_RW, AID_MEDIA_RW, 0, "data/media/Music" }, + { 00771, AID_SYSTEM, AID_SYSTEM, 0, "data" }, + { 00750, AID_ROOT, AID_SHELL, 0, "sbin" }, + { 00755, AID_ROOT, AID_SHELL, 0, "system/bin" }, + { 00755, AID_ROOT, AID_SHELL, 0, "system/vendor" }, + { 00755, AID_ROOT, AID_SHELL, 0, "system/xbin" }, + { 00755, AID_ROOT, AID_ROOT, 0, "system/etc/ppp" }, + { 00755, AID_ROOT, AID_SHELL, 0, "vendor" }, + { 00777, AID_ROOT, AID_ROOT, 0, "sdcard" }, + { 00755, AID_ROOT, AID_ROOT, 0, 0 }, +}; + +/* Rules for files. +** These rules are applied based on "first match", so they +** should start with the most specific path and work their +** way up to the root. Prefixes ending in * denotes wildcard +** and will allow partial matches. +*/ +static const char conf_dir[] = "/system/etc/fs_config_dirs"; +static const char conf_file[] = "/system/etc/fs_config_files"; + +static const struct fs_path_config android_files[] = { + { 00440, AID_ROOT, AID_SHELL, 0, "system/etc/init.goldfish.rc" }, + { 00550, AID_ROOT, AID_SHELL, 0, "system/etc/init.goldfish.sh" }, + { 00550, AID_ROOT, AID_SHELL, 0, "system/etc/init.ril" }, + { 00550, AID_DHCP, AID_SHELL, 0, "system/etc/dhcpcd/dhcpcd-run-hooks" }, + { 00555, AID_ROOT, AID_ROOT, 0, "system/etc/ppp/*" }, + { 00555, AID_ROOT, AID_ROOT, 0, "system/etc/rc.*" }, + { 00444, AID_ROOT, AID_ROOT, 0, conf_dir + 1 }, + { 00444, AID_ROOT, AID_ROOT, 0, conf_file + 1 }, + { 00644, AID_SYSTEM, AID_SYSTEM, 0, "data/app/*" }, + { 00644, AID_MEDIA_RW, AID_MEDIA_RW, 0, "data/media/*" }, + { 00644, AID_SYSTEM, AID_SYSTEM, 0, "data/app-private/*" }, + { 00644, AID_APP, AID_APP, 0, "data/data/*" }, + + /* the following five files are INTENTIONALLY set-uid, but they + * are NOT included on user builds. */ + { 04750, AID_ROOT, AID_SHELL, 0, "system/xbin/su" }, + { 06755, AID_ROOT, AID_ROOT, 0, "system/xbin/librank" }, + { 06755, AID_ROOT, AID_ROOT, 0, "system/xbin/procrank" }, + { 06755, AID_ROOT, AID_ROOT, 0, "system/xbin/procmem" }, + { 04770, AID_ROOT, AID_RADIO, 0, "system/bin/pppd-ril" }, + + /* the following files have enhanced capabilities and ARE included in user builds. */ + { 00750, AID_ROOT, AID_SHELL, (1ULL << CAP_SETUID) | (1ULL << CAP_SETGID), "system/bin/run-as" }, + { 00700, AID_SYSTEM, AID_SHELL, (1ULL << CAP_BLOCK_SUSPEND), "system/bin/inputflinger" }, + + { 00750, AID_ROOT, AID_ROOT, 0, "system/bin/uncrypt" }, + { 00750, AID_ROOT, AID_ROOT, 0, "system/bin/install-recovery.sh" }, + { 00755, AID_ROOT, AID_SHELL, 0, "system/bin/*" }, + { 00755, AID_ROOT, AID_ROOT, 0, "system/lib/valgrind/*" }, + { 00755, AID_ROOT, AID_ROOT, 0, "system/lib64/valgrind/*" }, + { 00755, AID_ROOT, AID_SHELL, 0, "system/xbin/*" }, + { 00755, AID_ROOT, AID_SHELL, 0, "system/vendor/bin/*" }, + { 00755, AID_ROOT, AID_SHELL, 0, "vendor/bin/*" }, + { 00750, AID_ROOT, AID_SHELL, 0, "sbin/*" }, + { 00755, AID_ROOT, AID_ROOT, 0, "bin/*" }, + { 00750, AID_ROOT, AID_SHELL, 0, "init*" }, + { 00750, AID_ROOT, AID_SHELL, 0, "sbin/fs_mgr" }, + { 00640, AID_ROOT, AID_SHELL, 0, "fstab.*" }, + { 00644, AID_ROOT, AID_ROOT, 0, 0 }, +}; + +static int fs_config_open(int dir) +{ + int fd = -1; + + const char *out = getenv("OUT"); + if (out && *out) { + char *name = NULL; + asprintf(&name, "%s%s", out, dir ? conf_dir : conf_file); + if (name) { + fd = TEMP_FAILURE_RETRY(open(name, O_RDONLY | O_BINARY)); + free(name); + } + } + if (fd < 0) { + fd = TEMP_FAILURE_RETRY(open(dir ? conf_dir : conf_file, O_RDONLY | O_BINARY)); + } + return fd; +} + +static bool fs_config_cmp(bool dir, const char *prefix, size_t len, + const char *path, size_t plen) +{ + if (dir) { + if (plen < len) { + return false; + } + } else { + /* If name ends in * then allow partial matches. */ + if (prefix[len - 1] == '*') { + return !strncmp(prefix, path, len - 1); + } + if (plen != len) { + return false; + } + } + return !strncmp(prefix, path, len); +} + +void fs_config(const char *path, int dir, + unsigned *uid, unsigned *gid, unsigned *mode, uint64_t *capabilities) +{ + const struct fs_path_config *pc; + int fd, plen; + + if (path[0] == '/') { + path++; + } + + plen = strlen(path); + + fd = fs_config_open(dir); + if (fd >= 0) { + struct fs_path_config_from_file header; + + while (TEMP_FAILURE_RETRY(read(fd, &header, sizeof(header))) == sizeof(header)) { + char *prefix; + uint16_t host_len = get2LE((const uint8_t *)&header.len); + ssize_t len, remainder = host_len - sizeof(header); + if (remainder <= 0) { + ALOGE("%s len is corrupted", dir ? conf_dir : conf_file); + break; + } + prefix = calloc(1, remainder); + if (!prefix) { + ALOGE("%s out of memory", dir ? conf_dir : conf_file); + break; + } + if (TEMP_FAILURE_RETRY(read(fd, prefix, remainder)) != remainder) { + free(prefix); + ALOGE("%s prefix is truncated", dir ? conf_dir : conf_file); + break; + } + len = strnlen(prefix, remainder); + if (len >= remainder) { /* missing a terminating null */ + free(prefix); + ALOGE("%s is corrupted", dir ? conf_dir : conf_file); + break; + } + if (fs_config_cmp(dir, prefix, len, path, plen)) { + free(prefix); + close(fd); + *uid = get2LE((const uint8_t *)&(header.uid)); + *gid = get2LE((const uint8_t *)&(header.gid)); + *mode = (*mode & (~07777)) | get2LE((const uint8_t *)&(header.mode)); + *capabilities = get8LE((const uint8_t *)&(header.capabilities)); + return; + } + free(prefix); + } + close(fd); + } + + pc = dir ? android_dirs : android_files; + for(; pc->prefix; pc++){ + if (fs_config_cmp(dir, pc->prefix, strlen(pc->prefix), path, plen)) { + break; + } + } + *uid = pc->uid; + *gid = pc->gid; + *mode = (*mode & (~07777)) | pc->mode; + *capabilities = pc->capabilities; +} + +ssize_t fs_config_generate(char *buffer, size_t length, const struct fs_path_config *pc) +{ + struct fs_path_config_from_file *p = (struct fs_path_config_from_file *)buffer; + size_t len = ALIGN(sizeof(*p) + strlen(pc->prefix) + 1, sizeof(uint64_t)); + + if ((length < len) || (len > UINT16_MAX)) { + return -ENOSPC; + } + memset(p, 0, len); + uint16_t host_len = len; + p->len = get2LE((const uint8_t *)&host_len); + p->mode = get2LE((const uint8_t *)&(pc->mode)); + p->uid = get2LE((const uint8_t *)&(pc->uid)); + p->gid = get2LE((const uint8_t *)&(pc->gid)); + p->capabilities = get8LE((const uint8_t *)&(pc->capabilities)); + strcpy(p->prefix, pc->prefix); + return len; +} diff --git a/libcutils/iosched_policy.c b/libcutils/iosched_policy.c index a6da9ca..8946d3c 100644 --- a/libcutils/iosched_policy.c +++ b/libcutils/iosched_policy.c @@ -1,5 +1,5 @@ /* -** Copyright 2007-2014, The Android Open Source Project +** Copyright 2007, The Android Open Source Project ** ** Licensed under the Apache License, Version 2.0 (the "License"); ** you may not use this file except in compliance with the License. diff --git a/libcutils/klog.c b/libcutils/klog.c index fbb7b72..f574f08 100644 --- a/libcutils/klog.c +++ b/libcutils/klog.c @@ -14,13 +14,14 @@ * limitations under the License. */ -#include <sys/stat.h> -#include <sys/types.h> +#include <errno.h> #include <fcntl.h> #include <stdarg.h> #include <stdio.h> #include <stdlib.h> #include <string.h> +#include <sys/stat.h> +#include <sys/types.h> #include <unistd.h> #include <cutils/klog.h> @@ -36,41 +37,36 @@ void klog_set_level(int level) { klog_level = level; } -void klog_init(void) -{ - static const char *name = "/dev/__kmsg__"; - +void klog_init(void) { if (klog_fd >= 0) return; /* Already initialized */ + static const char* name = "/dev/__kmsg__"; if (mknod(name, S_IFCHR | 0600, (1 << 8) | 11) == 0) { - klog_fd = open(name, O_WRONLY); - if (klog_fd < 0) - return; - fcntl(klog_fd, F_SETFD, FD_CLOEXEC); + klog_fd = open(name, O_WRONLY | O_CLOEXEC); unlink(name); } } #define LOG_BUF_MAX 512 -void klog_vwrite(int level, const char *fmt, va_list ap) -{ - char buf[LOG_BUF_MAX]; - +void klog_writev(int level, const struct iovec* iov, int iov_count) { if (level > klog_level) return; if (klog_fd < 0) klog_init(); if (klog_fd < 0) return; - - vsnprintf(buf, LOG_BUF_MAX, fmt, ap); - buf[LOG_BUF_MAX - 1] = 0; - - write(klog_fd, buf, strlen(buf)); + TEMP_FAILURE_RETRY(writev(klog_fd, iov, iov_count)); } -void klog_write(int level, const char *fmt, ...) -{ +void klog_write(int level, const char* fmt, ...) { + char buf[LOG_BUF_MAX]; va_list ap; va_start(ap, fmt); - klog_vwrite(level, fmt, ap); + vsnprintf(buf, sizeof(buf), fmt, ap); va_end(ap); + + buf[LOG_BUF_MAX - 1] = 0; + + struct iovec iov[1]; + iov[0].iov_base = buf; + iov[0].iov_len = strlen(buf); + klog_writev(level, iov, 1); } diff --git a/libcutils/loghack.h b/libcutils/loghack.h deleted file mode 100644 index 750cab0..0000000 --- a/libcutils/loghack.h +++ /dev/null @@ -1,38 +0,0 @@ -/* - * Copyright (C) 2007 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -/** - * This is a temporary hack to enable logging from cutils. - */ - -#ifndef _CUTILS_LOGHACK_H -#define _CUTILS_LOGHACK_H - -#ifdef HAVE_ANDROID_OS -#include <cutils/log.h> -#else -#include <stdio.h> -#define ALOG(level, ...) \ - ((void)printf("cutils:" level "/" LOG_TAG ": " __VA_ARGS__)) -#define ALOGV(...) ALOG("V", __VA_ARGS__) -#define ALOGD(...) ALOG("D", __VA_ARGS__) -#define ALOGI(...) ALOG("I", __VA_ARGS__) -#define ALOGW(...) ALOG("W", __VA_ARGS__) -#define ALOGE(...) ALOG("E", __VA_ARGS__) -#define LOG_ALWAYS_FATAL(...) do { ALOGE(__VA_ARGS__); exit(1); } while (0) -#endif - -#endif // _CUTILS_LOGHACK_H diff --git a/libcutils/open_memstream.c b/libcutils/open_memstream.c index 5b4388a..9183266 100644 --- a/libcutils/open_memstream.c +++ b/libcutils/open_memstream.c @@ -14,7 +14,7 @@ * limitations under the License. */ -#ifndef HAVE_OPEN_MEMSTREAM +#if defined(__APPLE__) /* * Implementation of the POSIX open_memstream() function, which Linux has @@ -59,8 +59,6 @@ # define DBUG(x) ((void)0) #endif -#ifdef HAVE_FUNOPEN - /* * Definition of a seekable, write-only memory stream. */ @@ -251,12 +249,6 @@ FILE* open_memstream(char** bufp, size_t* sizep) return fp; } -#else /*not HAVE_FUNOPEN*/ -FILE* open_memstream(char** bufp, size_t* sizep) -{ - abort(); -} -#endif /*HAVE_FUNOPEN*/ @@ -378,4 +370,4 @@ DONE #endif -#endif /*!HAVE_OPEN_MEMSTREAM*/ +#endif /* __APPLE__ */ diff --git a/libcutils/process_name.c b/libcutils/process_name.c index 9c3dfb8..cc931eb 100644 --- a/libcutils/process_name.c +++ b/libcutils/process_name.c @@ -17,7 +17,7 @@ #include <fcntl.h> #include <stdlib.h> #include <string.h> -#if defined(HAVE_PRCTL) +#if defined(__linux__) #include <sys/prctl.h> #endif #include <sys/stat.h> @@ -51,7 +51,7 @@ void set_process_name(const char* new_name) { strcpy(copy, new_name); process_name = (const char*) copy; -#if defined(HAVE_PRCTL) +#if defined(__linux__) if (len < 16) { prctl(PR_SET_NAME, (unsigned long) new_name, 0, 0, 0); } else { diff --git a/libcutils/properties.c b/libcutils/properties.c index b283658..4e46e02 100644 --- a/libcutils/properties.c +++ b/libcutils/properties.c @@ -28,7 +28,7 @@ #include <cutils/properties.h> #include <stdbool.h> #include <inttypes.h> -#include "loghack.h" +#include <log/log.h> int8_t property_get_bool(const char *key, int8_t default_value) { if (!key) { @@ -104,8 +104,6 @@ int32_t property_get_int32(const char *key, int32_t default_value) { return (int32_t)property_get_imax(key, INT32_MIN, INT32_MAX, default_value); } -#ifdef HAVE_LIBC_SYSTEM_PROPERTIES - #define _REALLY_INCLUDE_SYS__SYSTEM_PROPERTIES_H_ #include <sys/_system_properties.h> @@ -156,265 +154,3 @@ int property_list( struct property_list_callback_data data = { propfn, cookie }; return __system_property_foreach(property_list_callback, &data); } - -#elif defined(HAVE_SYSTEM_PROPERTY_SERVER) - -/* - * The Linux simulator provides a "system property server" that uses IPC - * to set/get/list properties. The file descriptor is shared by all - * threads in the process, so we use a mutex to ensure that requests - * from multiple threads don't get interleaved. - */ -#include <stdio.h> -#include <sys/types.h> -#include <sys/socket.h> -#include <sys/un.h> -#include <pthread.h> - -static pthread_once_t gInitOnce = PTHREAD_ONCE_INIT; -static pthread_mutex_t gPropertyFdLock = PTHREAD_MUTEX_INITIALIZER; -static int gPropFd = -1; - -/* - * Connect to the properties server. - * - * Returns the socket descriptor on success. - */ -static int connectToServer(const char* fileName) -{ - int sock = -1; - int cc; - - struct sockaddr_un addr; - - sock = socket(AF_UNIX, SOCK_STREAM, 0); - if (sock < 0) { - ALOGW("UNIX domain socket create failed (errno=%d)\n", errno); - return -1; - } - - /* connect to socket; fails if file doesn't exist */ - strcpy(addr.sun_path, fileName); // max 108 bytes - addr.sun_family = AF_UNIX; - cc = connect(sock, (struct sockaddr*) &addr, SUN_LEN(&addr)); - if (cc < 0) { - // ENOENT means socket file doesn't exist - // ECONNREFUSED means socket exists but nobody is listening - //ALOGW("AF_UNIX connect failed for '%s': %s\n", - // fileName, strerror(errno)); - close(sock); - return -1; - } - - return sock; -} - -/* - * Perform one-time initialization. - */ -static void init(void) -{ - assert(gPropFd == -1); - - gPropFd = connectToServer(SYSTEM_PROPERTY_PIPE_NAME); - if (gPropFd < 0) { - //ALOGW("not connected to system property server\n"); - } else { - //ALOGV("Connected to system property server\n"); - } -} - -int property_get(const char *key, char *value, const char *default_value) -{ - char sendBuf[1+PROPERTY_KEY_MAX]; - char recvBuf[1+PROPERTY_VALUE_MAX]; - int len = -1; - - //ALOGV("PROPERTY GET [%s]\n", key); - - pthread_once(&gInitOnce, init); - if (gPropFd < 0) { - /* this mimics the behavior of the device implementation */ - if (default_value != NULL) { - strcpy(value, default_value); - len = strlen(value); - } - return len; - } - - if (strlen(key) >= PROPERTY_KEY_MAX) return -1; - - memset(sendBuf, 0xdd, sizeof(sendBuf)); // placate valgrind - - sendBuf[0] = (char) kSystemPropertyGet; - strcpy(sendBuf+1, key); - - pthread_mutex_lock(&gPropertyFdLock); - if (write(gPropFd, sendBuf, sizeof(sendBuf)) != sizeof(sendBuf)) { - pthread_mutex_unlock(&gPropertyFdLock); - return -1; - } - if (read(gPropFd, recvBuf, sizeof(recvBuf)) != sizeof(recvBuf)) { - pthread_mutex_unlock(&gPropertyFdLock); - return -1; - } - pthread_mutex_unlock(&gPropertyFdLock); - - /* first byte is 0 if value not defined, 1 if found */ - if (recvBuf[0] == 0) { - if (default_value != NULL) { - strcpy(value, default_value); - len = strlen(value); - } else { - /* - * If the value isn't defined, hand back an empty string and - * a zero length, rather than a failure. This seems wrong, - * since you can't tell the difference between "undefined" and - * "defined but empty", but it's what the device does. - */ - value[0] = '\0'; - len = 0; - } - } else if (recvBuf[0] == 1) { - strcpy(value, recvBuf+1); - len = strlen(value); - } else { - ALOGE("Got strange response to property_get request (%d)\n", - recvBuf[0]); - assert(0); - return -1; - } - //ALOGV("PROP [found=%d def='%s'] (%d) [%s]: [%s]\n", - // recvBuf[0], default_value, len, key, value); - - return len; -} - - -int property_set(const char *key, const char *value) -{ - char sendBuf[1+PROPERTY_KEY_MAX+PROPERTY_VALUE_MAX]; - char recvBuf[1]; - int result = -1; - - //ALOGV("PROPERTY SET [%s]: [%s]\n", key, value); - - pthread_once(&gInitOnce, init); - if (gPropFd < 0) - return -1; - - if (strlen(key) >= PROPERTY_KEY_MAX) return -1; - if (strlen(value) >= PROPERTY_VALUE_MAX) return -1; - - memset(sendBuf, 0xdd, sizeof(sendBuf)); // placate valgrind - - sendBuf[0] = (char) kSystemPropertySet; - strcpy(sendBuf+1, key); - strcpy(sendBuf+1+PROPERTY_KEY_MAX, value); - - pthread_mutex_lock(&gPropertyFdLock); - if (write(gPropFd, sendBuf, sizeof(sendBuf)) != sizeof(sendBuf)) { - pthread_mutex_unlock(&gPropertyFdLock); - return -1; - } - if (read(gPropFd, recvBuf, sizeof(recvBuf)) != sizeof(recvBuf)) { - pthread_mutex_unlock(&gPropertyFdLock); - return -1; - } - pthread_mutex_unlock(&gPropertyFdLock); - - if (recvBuf[0] != 1) - return -1; - return 0; -} - -int property_list(void (*propfn)(const char *key, const char *value, void *cookie), - void *cookie) -{ - //ALOGV("PROPERTY LIST\n"); - pthread_once(&gInitOnce, init); - if (gPropFd < 0) - return -1; - - return 0; -} - -#else - -/* SUPER-cheesy place-holder implementation for Win32 */ - -#include <cutils/threads.h> - -static mutex_t env_lock = MUTEX_INITIALIZER; - -int property_get(const char *key, char *value, const char *default_value) -{ - char ename[PROPERTY_KEY_MAX + 6]; - char *p; - int len; - - len = strlen(key); - if(len >= PROPERTY_KEY_MAX) return -1; - memcpy(ename, "PROP_", 5); - memcpy(ename + 5, key, len + 1); - - mutex_lock(&env_lock); - - p = getenv(ename); - if(p == 0) p = ""; - len = strlen(p); - if(len >= PROPERTY_VALUE_MAX) { - len = PROPERTY_VALUE_MAX - 1; - } - - if((len == 0) && default_value) { - len = strlen(default_value); - memcpy(value, default_value, len + 1); - } else { - memcpy(value, p, len); - value[len] = 0; - } - - mutex_unlock(&env_lock); - - return len; -} - - -int property_set(const char *key, const char *value) -{ - char ename[PROPERTY_KEY_MAX + 6]; - char *p; - int len; - int r; - - if(strlen(value) >= PROPERTY_VALUE_MAX) return -1; - - len = strlen(key); - if(len >= PROPERTY_KEY_MAX) return -1; - memcpy(ename, "PROP_", 5); - memcpy(ename + 5, key, len + 1); - - mutex_lock(&env_lock); -#ifdef HAVE_MS_C_RUNTIME - { - char temp[256]; - snprintf( temp, sizeof(temp), "%s=%s", ename, value); - putenv(temp); - r = 0; - } -#else - r = setenv(ename, value, 1); -#endif - mutex_unlock(&env_lock); - - return r; -} - -int property_list(void (*propfn)(const char *key, const char *value, void *cookie), - void *cookie) -{ - return 0; -} - -#endif diff --git a/libcutils/sched_policy.c b/libcutils/sched_policy.c index 493511e..dfc8777 100644 --- a/libcutils/sched_policy.c +++ b/libcutils/sched_policy.c @@ -37,7 +37,7 @@ static inline SchedPolicy _policy(SchedPolicy p) return p == SP_DEFAULT ? SP_SYSTEM_DEFAULT : p; } -#if defined(HAVE_ANDROID_OS) && defined(HAVE_SCHED_H) && defined(HAVE_PTHREADS) +#if defined(HAVE_ANDROID_OS) #include <pthread.h> #include <sched.h> @@ -203,11 +203,9 @@ static int getSchedulerGroup(int tid, char* buf, size_t bufLen) int get_sched_policy(int tid, SchedPolicy *policy) { -#ifdef HAVE_GETTID if (tid == 0) { tid = gettid(); } -#endif pthread_once(&the_once, __initialize); if (__sys_supports_schedgroups) { @@ -240,11 +238,9 @@ int get_sched_policy(int tid, SchedPolicy *policy) int set_sched_policy(int tid, SchedPolicy policy) { -#ifdef HAVE_GETTID if (tid == 0) { tid = gettid(); } -#endif policy = _policy(policy); pthread_once(&the_once, __initialize); diff --git a/libcutils/socket_local_client.c b/libcutils/socket_local_client.c index ddcc2da..7b42daa 100644 --- a/libcutils/socket_local_client.c +++ b/libcutils/socket_local_client.c @@ -52,7 +52,7 @@ int socket_make_sockaddr_un(const char *name, int namespaceId, switch (namespaceId) { case ANDROID_SOCKET_NAMESPACE_ABSTRACT: -#ifdef HAVE_LINUX_LOCAL_SOCKET_NAMESPACE +#if defined(__linux__) namelen = strlen(name); // Test with length +1 for the *initial* '\0'. @@ -67,7 +67,7 @@ int socket_make_sockaddr_un(const char *name, int namespaceId, p_addr->sun_path[0] = 0; memcpy(p_addr->sun_path + 1, name, namelen); -#else /*HAVE_LINUX_LOCAL_SOCKET_NAMESPACE*/ +#else /* this OS doesn't have the Linux abstract namespace */ namelen = strlen(name) + strlen(FILESYSTEM_SOCKET_PREFIX); @@ -79,7 +79,7 @@ int socket_make_sockaddr_un(const char *name, int namespaceId, strcpy(p_addr->sun_path, FILESYSTEM_SOCKET_PREFIX); strcat(p_addr->sun_path, name); -#endif /*HAVE_LINUX_LOCAL_SOCKET_NAMESPACE*/ +#endif break; case ANDROID_SOCKET_NAMESPACE_RESERVED: diff --git a/libcutils/socket_local_server.c b/libcutils/socket_local_server.c index 7628fe4..60eb86b 100644 --- a/libcutils/socket_local_server.c +++ b/libcutils/socket_local_server.c @@ -66,7 +66,7 @@ int socket_local_server_bind(int s, const char *name, int namespaceId) } /* basically: if this is a filesystem path, unlink first */ -#ifndef HAVE_LINUX_LOCAL_SOCKET_NAMESPACE +#if !defined(__linux__) if (1) { #else if (namespaceId == ANDROID_SOCKET_NAMESPACE_RESERVED diff --git a/libcutils/socket_network_client.c b/libcutils/socket_network_client.c index 4826033..e0031ba 100644 --- a/libcutils/socket_network_client.c +++ b/libcutils/socket_network_client.c @@ -45,7 +45,6 @@ int socket_network_client_timeout(const char *host, int port, int type, int time { struct hostent *hp; struct sockaddr_in addr; - socklen_t alen; int s; int flags = 0, error = 0, ret = 0; fd_set rset, wset; diff --git a/libcutils/str_parms.c b/libcutils/str_parms.c index dfe8c4b..924289a 100644 --- a/libcutils/str_parms.c +++ b/libcutils/str_parms.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2011-2013 The Android Open Source Project + * Copyright (C) 2011 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. @@ -357,51 +357,3 @@ void str_parms_dump(struct str_parms *str_parms) { hashmapForEach(str_parms->map, dump_entry, str_parms); } - -#ifdef TEST_STR_PARMS -static void test_str_parms_str(const char *str) -{ - struct str_parms *str_parms; - char *out_str; - - str_parms = str_parms_create_str(str); - str_parms_add_str(str_parms, "dude", "woah"); - str_parms_add_str(str_parms, "dude", "woah"); - str_parms_del(str_parms, "dude"); - str_parms_dump(str_parms); - out_str = str_parms_to_str(str_parms); - str_parms_destroy(str_parms); - ALOGI("%s: '%s' stringified is '%s'", __func__, str, out_str); - free(out_str); -} - -int main(void) -{ - test_str_parms_str(""); - test_str_parms_str(";"); - test_str_parms_str("="); - test_str_parms_str("=;"); - test_str_parms_str("=bar"); - test_str_parms_str("=bar;"); - test_str_parms_str("foo="); - test_str_parms_str("foo=;"); - test_str_parms_str("foo=bar"); - test_str_parms_str("foo=bar;"); - test_str_parms_str("foo=bar;baz"); - test_str_parms_str("foo=bar;baz="); - test_str_parms_str("foo=bar;baz=bat"); - test_str_parms_str("foo=bar;baz=bat;"); - test_str_parms_str("foo=bar;baz=bat;foo=bar"); - - // hashmapPut reports errors by setting errno to ENOMEM. - // Test that we're not confused by running in an environment where this is already true. - errno = ENOMEM; - test_str_parms_str("foo=bar;baz="); - if (errno != ENOMEM) { - abort(); - } - test_str_parms_str("foo=bar;baz="); - - return 0; -} -#endif diff --git a/libcutils/memory.c b/libcutils/strlcpy.c index 6486b45..c66246c 100644 --- a/libcutils/memory.c +++ b/libcutils/strlcpy.c @@ -1,43 +1,4 @@ /* - * Copyright (C) 2007 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#include <cutils/memory.h> - -#if !HAVE_MEMSET16 -void android_memset16(uint16_t* dst, uint16_t value, size_t size) -{ - size >>= 1; - while (size--) { - *dst++ = value; - } -} -#endif - -#if !HAVE_MEMSET32 -void android_memset32(uint32_t* dst, uint32_t value, size_t size) -{ - size >>= 2; - while (size--) { - *dst++ = value; - } -} -#endif - -#if !HAVE_STRLCPY -/* * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com> * * Permission to use, copy, modify, and distribute this software for any @@ -54,8 +15,13 @@ void android_memset32(uint32_t* dst, uint32_t value, size_t size) */ #include <sys/types.h> + +#if defined(__GLIBC__) || defined(_WIN32) + #include <string.h> +#include <cutils/memory.h> + /* Implementation of strlcpy() for platforms that don't already have it. */ /* @@ -88,4 +54,5 @@ strlcpy(char *dst, const char *src, size_t siz) return(s - src - 1); /* count does not include NUL */ } + #endif diff --git a/libcutils/tests/Android.mk b/libcutils/tests/Android.mk index 8e65310..cf70345 100644 --- a/libcutils/tests/Android.mk +++ b/libcutils/tests/Android.mk @@ -15,17 +15,23 @@ LOCAL_PATH := $(call my-dir) test_src_files := \ + test_str_parms.cpp \ + +test_target_only_src_files := \ MemsetTest.cpp \ PropertiesTest.cpp \ +test_libraries := libcutils liblog + + +# +# Target. +# + include $(CLEAR_VARS) LOCAL_MODULE := libcutils_test -LOCAL_SRC_FILES := $(test_src_files) -LOCAL_SHARED_LIBRARIES := \ - libcutils \ - liblog \ - libutils \ - +LOCAL_SRC_FILES := $(test_src_files) $(test_target_only_src_files) +LOCAL_SHARED_LIBRARIES := $(test_libraries) LOCAL_MULTILIB := both LOCAL_MODULE_STEM_32 := $(LOCAL_MODULE)32 LOCAL_MODULE_STEM_64 := $(LOCAL_MODULE)64 @@ -34,15 +40,34 @@ include $(BUILD_NATIVE_TEST) include $(CLEAR_VARS) LOCAL_MODULE := libcutils_test_static LOCAL_FORCE_STATIC_EXECUTABLE := true +LOCAL_SRC_FILES := $(test_src_files) $(test_target_only_src_files) +LOCAL_STATIC_LIBRARIES := libc $(test_libraries) +LOCAL_CXX_STL := libc++_static +LOCAL_MULTILIB := both +LOCAL_MODULE_STEM_32 := $(LOCAL_MODULE)32 +LOCAL_MODULE_STEM_64 := $(LOCAL_MODULE)64 +include $(BUILD_NATIVE_TEST) + + +# +# Host. +# + +include $(CLEAR_VARS) +LOCAL_MODULE := libcutils_test LOCAL_SRC_FILES := $(test_src_files) -LOCAL_STATIC_LIBRARIES := \ - libc \ - libcutils \ - liblog \ - libstlport_static \ - libutils \ +LOCAL_SHARED_LIBRARIES := $(test_libraries) +LOCAL_MULTILIB := both +LOCAL_MODULE_STEM_32 := $(LOCAL_MODULE)32 +LOCAL_MODULE_STEM_64 := $(LOCAL_MODULE)64 +include $(BUILD_HOST_NATIVE_TEST) +include $(CLEAR_VARS) +LOCAL_MODULE := libcutils_test_static +LOCAL_SRC_FILES := $(test_src_files) +LOCAL_STATIC_LIBRARIES := $(test_libraries) +LOCAL_CXX_STL := libc++_static LOCAL_MULTILIB := both LOCAL_MODULE_STEM_32 := $(LOCAL_MODULE)32 LOCAL_MODULE_STEM_64 := $(LOCAL_MODULE)64 -include $(BUILD_NATIVE_TEST) +include $(BUILD_HOST_NATIVE_TEST) diff --git a/libcutils/tests/test_str_parms.cpp b/libcutils/tests/test_str_parms.cpp new file mode 100644 index 0000000..d8f639b --- /dev/null +++ b/libcutils/tests/test_str_parms.cpp @@ -0,0 +1,57 @@ +/* + * Copyright (C) 2011 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <cutils/str_parms.h> +#include <gtest/gtest.h> + +static void test_str_parms_str(const char* str, const char* expected) { + str_parms* str_parms = str_parms_create_str(str); + str_parms_add_str(str_parms, "dude", "woah"); + str_parms_add_str(str_parms, "dude", "woah"); + str_parms_del(str_parms, "dude"); + str_parms_dump(str_parms); + char* out_str = str_parms_to_str(str_parms); + str_parms_destroy(str_parms); + ASSERT_STREQ(expected, out_str) << str; + free(out_str); +} + +TEST(str_parms, smoke) { + test_str_parms_str("", ""); + test_str_parms_str(";", ""); + test_str_parms_str("=", ""); + test_str_parms_str("=;", ""); + test_str_parms_str("=bar", ""); + test_str_parms_str("=bar;", ""); + test_str_parms_str("foo=", "foo="); + test_str_parms_str("foo=;", "foo="); + test_str_parms_str("foo=bar", "foo=bar"); + test_str_parms_str("foo=bar;", "foo=bar"); + test_str_parms_str("foo=bar;baz", "foo=bar;baz="); + test_str_parms_str("foo=bar;baz=", "foo=bar;baz="); + test_str_parms_str("foo=bar;baz=bat", "foo=bar;baz=bat"); + test_str_parms_str("foo=bar;baz=bat;", "foo=bar;baz=bat"); + test_str_parms_str("foo=bar1;baz=bat;foo=bar2", "foo=bar2;baz=bat"); +} + +TEST(str_parms, put_ENOMEM) { + // hashmapPut reports errors by setting errno to ENOMEM. + // Test that we're not confused by running in an environment where this is already true. + errno = ENOMEM; + test_str_parms_str("foo=bar;baz=", "foo=bar;baz="); + ASSERT_EQ(ENOMEM, errno); + test_str_parms_str("foo=bar;baz=", "foo=bar;baz="); +} diff --git a/libcutils/threads.c b/libcutils/threads.c index bf182f0..5f5577b 100644 --- a/libcutils/threads.c +++ b/libcutils/threads.c @@ -1,22 +1,38 @@ /* ** Copyright (C) 2007, The Android Open Source Project ** -** Licensed under the Apache License, Version 2.0 (the "License"); -** you may not use this file except in compliance with the License. -** You may obtain a copy of the License at +** Licensed under the Apache License, Version 2.0 (the "License"); +** you may not use this file except in compliance with the License. +** You may obtain a copy of the License at ** -** http://www.apache.org/licenses/LICENSE-2.0 +** http://www.apache.org/licenses/LICENSE-2.0 ** -** Unless required by applicable law or agreed to in writing, software -** distributed under the License is distributed on an "AS IS" BASIS, -** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -** See the License for the specific language governing permissions and +** Unless required by applicable law or agreed to in writing, software +** distributed under the License is distributed on an "AS IS" BASIS, +** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +** See the License for the specific language governing permissions and ** limitations under the License. */ -#include <cutils/threads.h> +#include "cutils/threads.h" + +#if !defined(_WIN32) + +// For gettid. +#if defined(__APPLE__) +#include "AvailabilityMacros.h" // For MAC_OS_X_VERSION_MAX_ALLOWED +#include <stdint.h> +#include <stdlib.h> +#include <sys/syscall.h> +#include <sys/time.h> +#include <unistd.h> +#elif defined(__linux__) && !defined(__ANDROID__) +#include <syscall.h> +#include <unistd.h> +#elif defined(_WIN32) +#include <Windows.h> +#endif -#ifdef HAVE_PTHREADS void* thread_store_get( thread_store_t* store ) { if (!store->has_tls) @@ -24,8 +40,8 @@ void* thread_store_get( thread_store_t* store ) return pthread_getspecific( store->tls ); } - -extern void thread_store_set( thread_store_t* store, + +extern void thread_store_set( thread_store_t* store, void* value, thread_store_destruct_t destroy) { @@ -42,14 +58,30 @@ extern void thread_store_set( thread_store_t* store, pthread_setspecific( store->tls, value ); } +// No definition needed for Android because we'll just pick up bionic's copy. +#ifndef __ANDROID__ +pid_t gettid() { +#if defined(__APPLE__) + uint64_t owner; + int rc = pthread_threadid_np(NULL, &owner); + if (rc != 0) { + abort(); + } + return owner; +#elif defined(__linux__) + return syscall(__NR_gettid); +#elif defined(_WIN32) + return (pid_t)GetCurrentThreadId(); #endif +} +#endif // __ANDROID__ -#ifdef HAVE_WIN32_THREADS +#else /* !defined(_WIN32) */ void* thread_store_get( thread_store_t* store ) { if (!store->has_tls) return NULL; - + return (void*) TlsGetValue( store->tls ); } @@ -65,7 +97,7 @@ void thread_store_set( thread_store_t* store, } else while (store->lock_init != -2) { Sleep(10); /* 10ms */ } - + EnterCriticalSection( &store->lock ); if (!store->has_tls) { store->tls = TlsAlloc(); @@ -76,7 +108,7 @@ void thread_store_set( thread_store_t* store, store->has_tls = 1; } LeaveCriticalSection( &store->lock ); - + TlsSetValue( store->tls, value ); } -#endif +#endif /* !defined(_WIN32) */ diff --git a/libcutils/trace.c b/libcutils/trace-dev.c index f57aac2..a06987e 100644 --- a/libcutils/trace.c +++ b/libcutils/trace-dev.c @@ -18,11 +18,11 @@ #include <fcntl.h> #include <limits.h> #include <pthread.h> +#include <stdatomic.h> #include <stdbool.h> #include <stdlib.h> #include <string.h> #include <sys/types.h> -#include <cutils/atomic.h> #include <cutils/compiler.h> #include <cutils/properties.h> #include <cutils/trace.h> @@ -30,11 +30,18 @@ #define LOG_TAG "cutils-trace" #include <log/log.h> -volatile int32_t atrace_is_ready = 0; +/** + * Maximum size of a message that can be logged to the trace buffer. + * Note this message includes a tag, the pid, and the string given as the name. + * Names should be kept short to get the most use of the trace buffer. + */ +#define ATRACE_MESSAGE_LENGTH 1024 + +atomic_bool atrace_is_ready = ATOMIC_VAR_INIT(false); int atrace_marker_fd = -1; uint64_t atrace_enabled_tags = ATRACE_TAG_NOT_READY; static bool atrace_is_debuggable = false; -static volatile int32_t atrace_is_enabled = 1; +static atomic_bool atrace_is_enabled = ATOMIC_VAR_INIT(true); static pthread_once_t atrace_once_control = PTHREAD_ONCE_INIT; static pthread_mutex_t atrace_tags_mutex = PTHREAD_MUTEX_INITIALIZER; @@ -51,7 +58,7 @@ void atrace_set_debuggable(bool debuggable) // the Zygote process from tracing. void atrace_set_tracing_enabled(bool enabled) { - android_atomic_release_store(enabled ? 1 : 0, &atrace_is_enabled); + atomic_store_explicit(&atrace_is_enabled, enabled, memory_order_release); atrace_update_tags(); } @@ -148,8 +155,8 @@ static uint64_t atrace_get_property() void atrace_update_tags() { uint64_t tags; - if (CC_UNLIKELY(android_atomic_acquire_load(&atrace_is_ready))) { - if (android_atomic_acquire_load(&atrace_is_enabled)) { + if (CC_UNLIKELY(atomic_load_explicit(&atrace_is_ready, memory_order_acquire))) { + if (atomic_load_explicit(&atrace_is_enabled, memory_order_acquire)) { tags = atrace_get_property(); pthread_mutex_lock(&atrace_tags_mutex); atrace_enabled_tags = tags; @@ -176,10 +183,60 @@ static void atrace_init_once() atrace_enabled_tags = atrace_get_property(); done: - android_atomic_release_store(1, &atrace_is_ready); + atomic_store_explicit(&atrace_is_ready, true, memory_order_release); } void atrace_setup() { pthread_once(&atrace_once_control, atrace_init_once); } + +void atrace_begin_body(const char* name) +{ + char buf[ATRACE_MESSAGE_LENGTH]; + size_t len; + + len = snprintf(buf, ATRACE_MESSAGE_LENGTH, "B|%d|%s", getpid(), name); + write(atrace_marker_fd, buf, len); +} + + +void atrace_async_begin_body(const char* name, int32_t cookie) +{ + char buf[ATRACE_MESSAGE_LENGTH]; + size_t len; + + len = snprintf(buf, ATRACE_MESSAGE_LENGTH, "S|%d|%s|%" PRId32, + getpid(), name, cookie); + write(atrace_marker_fd, buf, len); +} + +void atrace_async_end_body(const char* name, int32_t cookie) +{ + char buf[ATRACE_MESSAGE_LENGTH]; + size_t len; + + len = snprintf(buf, ATRACE_MESSAGE_LENGTH, "F|%d|%s|%" PRId32, + getpid(), name, cookie); + write(atrace_marker_fd, buf, len); +} + +void atrace_int_body(const char* name, int32_t value) +{ + char buf[ATRACE_MESSAGE_LENGTH]; + size_t len; + + len = snprintf(buf, ATRACE_MESSAGE_LENGTH, "C|%d|%s|%" PRId32, + getpid(), name, value); + write(atrace_marker_fd, buf, len); +} + +void atrace_int64_body(const char* name, int64_t value) +{ + char buf[ATRACE_MESSAGE_LENGTH]; + size_t len; + + len = snprintf(buf, ATRACE_MESSAGE_LENGTH, "C|%d|%s|%" PRId64, + getpid(), name, value); + write(atrace_marker_fd, buf, len); +} diff --git a/libcutils/trace-host.c b/libcutils/trace-host.c new file mode 100644 index 0000000..6478e3e --- /dev/null +++ b/libcutils/trace-host.c @@ -0,0 +1,35 @@ +/* + * Copyright (C) 2012 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <cutils/trace.h> + +#ifndef __unused +#define __unused __attribute__((__unused__)) +#endif + +atomic_bool atrace_is_ready = ATOMIC_VAR_INIT(true); +int atrace_marker_fd = -1; +uint64_t atrace_enabled_tags = 0; + +void atrace_set_debuggable(bool debuggable __unused) { } +void atrace_set_tracing_enabled(bool enabled __unused) { } +void atrace_update_tags() { } +void atrace_setup() { } +void atrace_begin_body(const char* name __unused) { } +void atrace_async_begin_body(const char* name __unused, int32_t cookie __unused) { } +void atrace_async_end_body(const char* name __unused, int32_t cookie __unused) { } +void atrace_int_body(const char* name __unused, int32_t value __unused) { } +void atrace_int64_body(const char* name __unused, int64_t value __unused) { } diff --git a/libcutils/uevent.c b/libcutils/uevent.c index 97a81e3..de5d227 100644 --- a/libcutils/uevent.c +++ b/libcutils/uevent.c @@ -31,12 +31,12 @@ */ ssize_t uevent_kernel_multicast_recv(int socket, void *buffer, size_t length) { - uid_t user = -1; - return uevent_kernel_multicast_uid_recv(socket, buffer, length, &user); + uid_t uid = -1; + return uevent_kernel_multicast_uid_recv(socket, buffer, length, &uid); } /** - * Like the above, but passes a uid_t in by reference. In the event that this + * Like the above, but passes a uid_t in by pointer. In the event that this * fails due to a bad uid check, the uid_t will be set to the uid of the * socket's peer. * @@ -44,8 +44,12 @@ ssize_t uevent_kernel_multicast_recv(int socket, void *buffer, size_t length) * returns -1, sets errno to EIO, and sets "user" to the UID associated with the * message. If the peer UID cannot be determined, "user" is set to -1." */ -ssize_t uevent_kernel_multicast_uid_recv(int socket, void *buffer, - size_t length, uid_t *user) +ssize_t uevent_kernel_multicast_uid_recv(int socket, void *buffer, size_t length, uid_t *uid) +{ + return uevent_kernel_recv(socket, buffer, length, true, uid); +} + +ssize_t uevent_kernel_recv(int socket, void *buffer, size_t length, bool require_group, uid_t *uid) { struct iovec iov = { buffer, length }; struct sockaddr_nl addr; @@ -60,7 +64,7 @@ ssize_t uevent_kernel_multicast_uid_recv(int socket, void *buffer, 0, }; - *user = -1; + *uid = -1; ssize_t n = recvmsg(socket, &hdr, 0); if (n <= 0) { return n; @@ -73,14 +77,18 @@ ssize_t uevent_kernel_multicast_uid_recv(int socket, void *buffer, } struct ucred *cred = (struct ucred *)CMSG_DATA(cmsg); - *user = cred->uid; + *uid = cred->uid; if (cred->uid != 0) { /* ignoring netlink message from non-root user */ goto out; } - if (addr.nl_groups == 0 || addr.nl_pid != 0) { - /* ignoring non-kernel or unicast netlink message */ + if (addr.nl_pid != 0) { + /* ignore non-kernel */ + goto out; + } + if (require_group && addr.nl_groups == 0) { + /* ignore unicast messages when requested */ goto out; } @@ -104,7 +112,7 @@ int uevent_open_socket(int buf_sz, bool passcred) addr.nl_pid = getpid(); addr.nl_groups = 0xffffffff; - s = socket(PF_NETLINK, SOCK_DGRAM, NETLINK_KOBJECT_UEVENT); + s = socket(PF_NETLINK, SOCK_DGRAM | SOCK_CLOEXEC, NETLINK_KOBJECT_UEVENT); if(s < 0) return -1; |