110 lines
2.6 KiB
ArmAsm
110 lines
2.6 KiB
ArmAsm
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/* Copyright (C) 2001 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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.file "start.s"
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.toc
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T.lsd: .tc __libc_start_data[tc], __libc_start_data[rw]
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T.main: .tc main[tc], main[rw]
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T.init: .tc __libc_start_init[tc], __libc_start_init[rw]
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T.fini: .tc __libc_start_fini[tc], __libc_start_init[rw]
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T.rtld_fini : .tc __libc_start_rtld_fini[tc], __libc_start_rtld_fini[rw]
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.globl __start
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.globl .__start
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.globl __libc_start_data
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.extern .__libc_start_main
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.extern .main
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.extern main
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.extern __libc_start_init
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.extern __libc_start_fini
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.extern __libc_start_rtld_fini
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/* Text */
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.csect __start[ds]
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__start:
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.long .__start, TOC[tc0], 0
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.csect .text[pr]
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.__start:
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/* No prologue needed, __start does not have to follow the ABI.
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Input from kernel/loader
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r1 : stack
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r2 : TOC
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r3 : argc
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r4 : argv
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r5 : envp
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r28 : data origin
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r29 : text origin
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r30 : module count
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r31 : default processing flag
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If r31 == r30, no special processing is needed, ie r28, r29 & r30
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are not used
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Save input in __libc_start_data */
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l 16, T.lsd(2)
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st 1, 0(16) /* stack */
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st 2, 4(16) /* toc */
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st 3, 8(16) /* argc */
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st 4, 12(16) /* argv */
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st 5, 16(16) /* envp */
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st 28, 20(16) /* data origin */
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st 29, 24(16) /* text origin */
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st 30, 28(16) /* module count */
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st 31, 32(16) /* special */
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/* Call __libc_start_main() */
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bl .__libc_start_main
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nop
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/* No epilog needed, __start does not have to follow the ABI */
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/* Trace back */
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TB.__start:
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.long 0x0
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.long 0xc2040
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.long 0x0
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.long TB.__start - .__start
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.short 7
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.byte "__start"
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.byte 0,0,0
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/* Data
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__libc_start_data
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Space to keep libc initialization information */
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.csect __libc_start_data[rw]
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__libc_start_data:
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/* For kernel/loader input args */
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.space 36
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/* Externs */
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.long main
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init:
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.long __libc_start_init
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fini:
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.long __libc_start_fini
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rtld_fini:
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.long __libc_start_rtld_fini
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.space 0x1000 + (4 + rtld_fini - __libc_start_data)
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