generic-library/bionic
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Merge "Move common arch-* code to arch-common directory"

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This commit is contained in:
Elliott Hughes 2013-10-03 23:17:58 +00:00 committed by Gerrit Code Review
commit 141029327c
12 changed files with 60 additions and 167 deletions
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14
libc/Android.mk
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@ -656,18 +656,20 @@ libc_crt_target_cflags += \
# that will call __cxa_finalize(&__dso_handle) in order to ensure that
# static C++ destructors are properly called on dlclose().
#
libc_crt_target_crtbegin_file := $(LOCAL_PATH)/arch-common/bionic/crtbegin.c
libc_crt_target_crtbegin_so_file := $(LOCAL_PATH)/arch-common/bionic/crtbegin_so.c
ifeq ($(TARGET_ARCH),arm)
libc_crt_target_so_cflags :=
endif
ifeq ($(TARGET_ARCH),mips)
libc_crt_target_so_cflags := -fPIC
libc_crt_target_crtbegin_file := $(LOCAL_PATH)/arch-$(TARGET_ARCH)/bionic/crtbegin.c
endif
ifeq ($(TARGET_ARCH),$(filter $(TARGET_ARCH),x86 x86_64))
libc_crt_target_so_cflags := -fPIC
endif
libc_crt_target_so_cflags += $(libc_crt_target_cflags)
libc_crt_target_crtbegin_file := $(LOCAL_PATH)/arch-$(TARGET_ARCH)/bionic/crtbegin.c
libc_crt_target_crtbegin_so_file := $(LOCAL_PATH)/arch-$(TARGET_ARCH)/bionic/crtbegin_so.c
# See the comment in crtbrand.c for the reason why we need to generate
# crtbrand.s before generating crtbrand.o.
@ -697,7 +699,7 @@ $(GEN): $(libc_crt_target_crtbegin_so_file)
ALL_GENERATED_SOURCES += $(GEN)
GEN := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_so.o
$(GEN): $(LOCAL_PATH)/arch-$(TARGET_ARCH)/bionic/crtend_so.S
$(GEN): $(LOCAL_PATH)/arch-common/bionic/crtend_so.S
@mkdir -p $(dir $@)
$(hide) $(TARGET_CC) $(libc_crt_target_so_cflags) \
-MD -MF $(@:%.o=%.d) -o $@ -c $<
@ -750,7 +752,7 @@ ALL_GENERATED_SOURCES += $(GEN)
# We rename crtend.o to crtend_android.o to avoid a
# name clash between gcc and bionic.
GEN := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_android.o
$(GEN): $(LOCAL_PATH)/arch-$(TARGET_ARCH)/bionic/crtend.S
$(GEN): $(LOCAL_PATH)/arch-common/bionic/crtend.S
@mkdir -p $(dir $@)
$(hide) $(TARGET_CC) $(libc_crt_target_cflags) \
-MD -MF $(@:%.o=%.d) -o $@ -c $<
@ -989,10 +991,10 @@ ifeq ($(TARGET_ARCH),arm)
LOCAL_CFLAGS += -DCRT_LEGACY_WORKAROUND
LOCAL_SRC_FILES := \
arch-arm/bionic/crtbegin_so.c \
arch-common/bionic/crtbegin_so.c \
arch-arm/bionic/atexit_legacy.c \
$(LOCAL_SRC_FILES) \
arch-arm/bionic/crtend_so.S
arch-common/bionic/crtend_so.S
endif
LOCAL_MODULE:= libc

53
libc/arch-arm/bionic/crtbegin.c
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@ -1,53 +0,0 @@
/*
* Copyright (C) 2012 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "../../bionic/libc_init_common.h"
#include <stddef.h>
#include <stdint.h>
__attribute__ ((section (".preinit_array")))
void (*__PREINIT_ARRAY__)(void) = (void (*)(void)) -1;
__attribute__ ((section (".init_array")))
void (*__INIT_ARRAY__)(void) = (void (*)(void)) -1;
__attribute__ ((section (".fini_array")))
void (*__FINI_ARRAY__)(void) = (void (*)(void)) -1;
__LIBC_HIDDEN__ void _start() {
structors_array_t array;
array.preinit_array = &__PREINIT_ARRAY__;
array.init_array = &__INIT_ARRAY__;
array.fini_array = &__FINI_ARRAY__;
void* raw_args = (void*) ((uintptr_t) __builtin_frame_address(0) + sizeof(void*));
__libc_init(raw_args, NULL, &main, &array);
}
#include "__dso_handle.h"
#include "atexit.h"

11
libc/arch-arm/bionic/crtend_so.S → libc/arch-common/bionic/asm_multiarch.h
View File

@ -1,5 +1,5 @@
/*
* Copyright (C) 2010 The Android Open Source Project
* Copyright (C) 2013 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -26,6 +26,11 @@
* SUCH DAMAGE.
*/
#if defined(__linux__) && defined(__ELF__)
.section .note.GNU-stack,"",%progbits
#ifdef __LP64__
# define ASM_PTR_SIZE(x) .quad x
# define ASM_ALIGN(x) .align 4
#else
# define ASM_PTR_SIZE(x) .long x
# define ASM_ALIGN(x)
#endif

0
libc/arch-arm/bionic/atexit.h → libc/arch-common/bionic/atexit.h
View File

6
libc/arch-x86/bionic/crtbegin.c → libc/arch-common/bionic/crtbegin.c
View File

@ -40,7 +40,9 @@ __attribute__ ((section (".fini_array")))
void (*__FINI_ARRAY__)(void) = (void (*)(void)) -1;
__LIBC_HIDDEN__
#ifdef __i386__
__attribute__((force_align_arg_pointer))
#endif
void _start() {
structors_array_t array;
array.preinit_array = &__PREINIT_ARRAY__;
@ -53,4 +55,6 @@ void _start() {
#include "__dso_handle.h"
#include "atexit.h"
#include "__stack_chk_fail_local.h"
#ifdef __i386__
# include "../../arch-x86/bionic/__stack_chk_fail_local.h"
#endif

10
libc/arch-arm/bionic/crtbegin_so.c → libc/arch-common/bionic/crtbegin_so.c
View File

@ -51,8 +51,12 @@ void __on_dlclose() {
*/
#ifdef CRT_LEGACY_WORKAROUND
#include "__dso_handle.h"
# include "__dso_handle.h"
#else
#include "__dso_handle_so.h"
#include "atexit.h"
# include "__dso_handle_so.h"
# include "atexit.h"
#endif
#ifdef __i386__
# include "../../arch-x86/bionic/__stack_chk_fail_local.h"
#endif

18
libc/arch-arm/bionic/crtend.S → libc/arch-common/bionic/crtend.S
View File

@ -25,16 +25,26 @@
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "asm_multiarch.h"
.section .preinit_array, "aw"
.long 0
ASM_PTR_SIZE(0)
.section .init_array, "aw"
.long 0
ASM_PTR_SIZE(0)
.section .fini_array, "aw"
.long 0
ASM_PTR_SIZE(0)
#if defined(__linux__) && defined(__ELF__)
.section .note.GNU-stack,"",%progbits
#endif
#if defined(__i386__) || defined(__x86_64__)
.section .eh_frame,"a",@progbits
ASM_ALIGN(4)
.type __FRAME_END__, @object
.size __FRAME_END__, 4
__FRAME_END__:
.zero 4
#endif

24
libc/arch-mips/bionic/crtend.S → libc/arch-common/bionic/crtend_so.S
View File

@ -1,5 +1,5 @@
/*
* Copyright (C) 2008 The Android Open Source Project
* Copyright (C) 2013 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -25,13 +25,25 @@
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
.section .preinit_array, "aw"
.long 0
#include "asm_multiarch.h"
#ifndef __arm__
.section .init_array, "aw"
.long 0
ASM_PTR_SIZE(0)
.section .fini_array, "aw"
.long 0
ASM_PTR_SIZE(0)
#endif
#if defined(__linux__) && defined(__ELF__)
.section .note.GNU-stack,"",%progbits
#endif
#if defined(__i386__) || defined(__x86_64__)
.section .eh_frame,"a",@progbits
ASM_ALIGN(4)
.type __FRAME_END__, @object
.size __FRAME_END__, 4
__FRAME_END__:
.zero 4
#endif

5
libc/arch-mips/bionic/crtend_so.S
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@ -1,5 +0,0 @@
.section .init_array, "aw"
.long 0
.section .fini_array, "aw"
.long 0

59
libc/arch-x86/bionic/crtbegin_so.c
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@ -1,59 +0,0 @@
/*
* Copyright (C) 2012 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
extern void __cxa_finalize(void *);
extern void *__dso_handle;
__attribute__((visibility("hidden"),destructor))
void __on_dlclose() {
__cxa_finalize(&__dso_handle);
}
/* CRT_LEGACY_WORKAROUND should only be defined when building
* this file as part of the platform's C library.
*
* The C library already defines a function named 'atexit()'
* for backwards compatibility with older NDK-generated binaries.
*
* For newer ones, 'atexit' is actually embedded in the C
* runtime objects that are linked into the final ELF
* binary (shared library or executable), and will call
* __cxa_atexit() in order to un-register any atexit()
* handler when a library is unloaded.
*
* This function must be global *and* hidden. Only the
* code inside the same ELF binary should be able to access it.
*/
#ifdef CRT_LEGACY_WORKAROUND
#include "__dso_handle.h"
#else
#include "__dso_handle_so.h"
#include "atexit.h"
#include "__stack_chk_fail_local.h"
#endif

15
libc/arch-x86/bionic/crtend.S
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@ -1,15 +0,0 @@
.section .preinit_array, "aw"
.long 0
.section .init_array, "aw"
.long 0
.section .fini_array, "aw"
.long 0
.section .eh_frame,"a",@progbits
.align 4
.type __FRAME_END__, @object
.size __FRAME_END__, 4
__FRAME_END__:
.zero 4

12
libc/arch-x86/bionic/crtend_so.S
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@ -1,12 +0,0 @@
.section .init_array, "aw"
.long 0
.section .fini_array, "aw"
.long 0
.section .eh_frame,"a",@progbits
.align 4
.type __FRAME_END__, @object
.size __FRAME_END__, 4
__FRAME_END__:
.zero 4