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/* Startup code for programs linked with GNU libc.
Copyright (C) 1998,1999,2000,2001,2002,2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <sysdep.h>
#include "bp-sym.h"
/* These are the various addresses we require. */
#ifdef PIC
.section ".data"
#else
.section ".rodata"
#endif
.align 2
L(start_addresses):
.long _SDA_BASE_
.long BP_SYM (main)
.long __libc_csu_init
.long __libc_csu_fini
ASM_SIZE_DIRECTIVE(L(start_addresses))
.section ".text"
#ifdef PIC
L(start_addressesp):
.long L(start_addresses)-L(branch)
#endif
ENTRY(_start)
/* Save the stack pointer, in case we're statically linked under Linux. */
mr r9,r1
/* Set up an initial stack frame, and clear the LR. */
clrrwi r1,r1,4
#ifdef PIC
bcl 20,31,L(branch)
L(branch):
li r0,0
mflr r13
#else
li r0,0
#endif
stwu r1,-16(r1)
mtlr r0
stw r0,0(r1)
/* Set r13 to point at the 'small data area', and put the address of
start_addresses in r8... */
#ifdef PIC
lwz r8,L(start_addressesp)-L(branch)(r13)
add r8,r13,r8
lwz r13,0(r8)
#else
lis r8,L(start_addresses)@ha
lwzu r13,L(start_addresses)@l(r8)
#endif
/* and continue in libc-start, in glibc. */
b JUMPTARGET(BP_SYM (__libc_start_main))
END(_start)
/* Define a symbol for the first piece of initialized data. */
.section ".data"
.globl __data_start
__data_start:
weak_alias (__data_start, data_start)
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