6cdefd06c0
Modify the dynamic linker so that executables can be loaded at locations other than 0x00000000. Modify crtbegin* so that non-PIC compilant "thumb interwork veneers" are not created by the linker. Bug: 5323301 Change-Id: Iece0272e2b708c79034f302c20160e1fe9029588
84 lines
2.4 KiB
ArmAsm
84 lines
2.4 KiB
ArmAsm
/*
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* Copyright (C) 2008 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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.text
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.align 4
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.type _start,#function
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.globl _start
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# this is the small startup code that is first run when
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# any executable that is dynamically-linked with Bionic
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# runs.
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#
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# it's purpose is to call __libc_init with appropriate
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# arguments, which are:
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#
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# - the address of the raw data block setup by the Linux
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# kernel ELF loader
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#
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# - address of an "onexit" function, not used on any
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# platform supported by Bionic
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#
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# - address of the "main" function of the program.
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#
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# - address of the constructor list
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#
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_start:
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mov r0, sp
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mov r1, #0
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ldr r2, =main
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adr r3, 1f
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ldr r4, =__libc_init
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bx r4
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1: .long __PREINIT_ARRAY__
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.long __INIT_ARRAY__
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.long __FINI_ARRAY__
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.long __CTOR_LIST__
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.section .preinit_array, "aw"
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.globl __PREINIT_ARRAY__
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__PREINIT_ARRAY__:
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.long -1
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.section .init_array, "aw"
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.globl __INIT_ARRAY__
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__INIT_ARRAY__:
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.long -1
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.section .fini_array, "aw"
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.globl __FINI_ARRAY__
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__FINI_ARRAY__:
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.long -1
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.section .ctors, "aw"
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.globl __CTOR_LIST__
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__CTOR_LIST__:
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.long -1
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#include "__dso_handle.S"
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#include "atexit.S"
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