platform_bionic/libc/arch-x86/bionic/crtbegin_so.c
Pavel Chupin 20c4a3a8ee Replace .S version of x86 crtfiles with .c version
This patch replaces .S versions of x86 crtfiles with .c which are much
easier to support. Some of the files are matching .c version of Arm
crtfiles. x86 files required some cleanup anyway and this cleanup actually
led to matching Arm files.

I didn't change anything to share the same crt*.c between x86 and Arm. I
prefer to keep them separate for a while in case any change is required
for one of the arch, but it's good thing to do in the following patches.

Change-Id: Ibcf033f8d15aa5b10c05c879fd4b79a64dfc70f3
Signed-off-by: Pavel Chupin <pavel.v.chupin@intel.com>
2012-11-30 17:41:25 +04:00

59 lines
2.3 KiB
C
Executable file

/*
* 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