65 lines
2.3 KiB
ArmAsm
65 lines
2.3 KiB
ArmAsm
/* Startup code for programs linked with GNU libc.
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Copyright (C) 1998 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 Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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In addition to the permissions in the GNU Library General Public
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License, the Free Software Foundation gives you unlimited
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permission to link the compiled version of this file with other
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programs, and to distribute those programs without any restriction
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coming from the use of this file. (The Library General Public
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License restrictions do apply in other respects; for example, they
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cover modification of the file, and distribution when not linked
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into another program.)
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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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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <sysdep.h>
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/* These are the various addresses we require. */
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.section ".rodata"
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.align 2
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weak_extern(_init)
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weak_extern(_fini)
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L(start_addresses):
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.long _SDA_BASE_
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.long JUMPTARGET(main)
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.long JUMPTARGET(_init)
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.long JUMPTARGET(_fini)
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ASM_SIZE_DIRECTIVE(L(start_addresses))
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.section ".text"
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ENTRY(_start)
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/* Save the stack pointer, in case we're statically linked under Linux. */
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mr %r9,%r1
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/* Set up an initial stack frame, and clear the LR. */
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clrrwi %r1,%r1,4
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li %r0,0
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stwu %r1,-16(%r1)
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mtlr %r0
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stw %r0,0(%r1)
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/* Set r13 to point at the 'small data area', and put the address of
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start_addresses in r8... */
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lis %r8,L(start_addresses)@ha
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lwzu %r13,L(start_addresses)@l(%r8)
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/* and continue in libc-start, in glibc. */
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b JUMPTARGET(__libc_start_main)
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END(_start)
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/* Define a symbol for the first piece of initialized data. */
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.section ".data"
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__data_start:
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weak_alias (__data_start, data_start)
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