f857d59635
Every other architecture already uses an assembly file here. The previous code aligned ESP incorrectly, but it doesn't really matter because everything is built with Clang's -mstackrealign, which realigns ESP in every function prologue. Bug: http://b/73140672#comment4 Test: lunch aosp_x86-eng; m; emulator; device boots Test: manual Change-Id: I921fd7848cdc611b4f8f13d1176d1983ffea952d
43 lines
1.7 KiB
ArmAsm
43 lines
1.7 KiB
ArmAsm
/*
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* Copyright (C) 2018 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 <private/bionic_asm.h>
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ENTRY(_start)
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// Force unwinds to end in this function.
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.cfi_undefined %eip
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movl %esp, %eax // %esp is aligned to 16 here.
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subl $12, %esp
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pushl %eax
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call __linker_init // %esp is aligned to 16 before the call.
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addl $16, %esp
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/* linker init returns (%eax) the _entry address in the main image */
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jmp *%eax
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END(_start)
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