10093276e9
modified: libc/Android.mk
new files: libc/arch-sh/bionic/*
new files: libc/arch-sh/include/*
97 lines
3.0 KiB
ArmAsm
97 lines
3.0 KiB
ArmAsm
/*
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* Copyright (C) 2009 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 statically-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. We
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# can't hard-code it in the adr pseudo instruction
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# so we use a tiny trampoline that will get relocated
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# by the dynamic linker before this code runs
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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 r15, r4
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mov #0, r5
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mov.l 0f, r6
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mova 2f, r0
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mov r0, r7
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mov.l 1f, r0
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jmp @r0
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nop
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.balign 4
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0: .long main
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1: .long __libc_init
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2: .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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# the .ctors section contains a list of pointers to "constructor"
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# functions that need to be called in order during C library initialization,
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# just before the program is being run. This is a C++ requirement
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#
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# the last entry shall be 0, and is defined in crtend.S
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#
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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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