57 lines
2.1 KiB
C
57 lines
2.1 KiB
C
/*
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* Copyright (C) 2012 The Android Open Source Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <stdint.h>
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#include <sys/cdefs.h>
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extern unsigned __linker_init(void* raw_args);
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__LIBC_HIDDEN__ void _start() {
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void (*start)(void);
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void* raw_args = (void*) ((uintptr_t) __builtin_frame_address(0) + sizeof(void*));
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start = (void(*)(void))__linker_init(raw_args);
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/* linker init returns (%eax) the _entry address in the main image */
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/* entry point expects sp to point to raw_args */
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__asm__ (
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"mov %0, %%esp\n\t"
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"jmp *%1\n\t"
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: : "r"(raw_args), "r"(start) :
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);
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/* Unreachable */
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}
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/* Since linker has its own version of crtbegin (this file) it should have */
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/* own version of __stack_chk_fail_local for the case when it's built with */
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/* stack protector feature */
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#include "arch-x86/bionic/__stack_chk_fail_local.h"
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