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/* Startup code for Alpha/ELF.
Copyright (C) 1993,1995,1996,1997,1998,2000,2001 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Richard Henderson <rth@tamu.edu>
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <sysdep.h>
.text
.align 3
.globl _start
.ent _start, 0
.type _start,@function
_start:
.frame fp, 0, zero
mov zero, fp
br gp, 1f
1: ldgp gp, 0(gp)
subq sp, 16, sp
.prologue 0
/* Load address of the user's main function. */
lda a0, main
ldl a1, 16(sp) /* get argc */
lda a2, 24(sp) /* get argv */
/* Load address of our own entry points to .fini and .init. */
lda a3, _init
lda a4, _fini
/* Store address of the shared library termination function. */
mov v0, a5
/* Provide the highest stack address to the user code. */
stq sp, 0(sp)
/* Call the user's main function, and exit with its value.
But let the libc call main. */
jsr ra, __libc_start_main
/* Die very horribly if exit returns. Call_pal hlt is callable from
kernel mode only; this will result in an illegal instruction trap. */
call_pal 0
.end _start
/* For ECOFF backwards compatibility. */
weak_alias(_start, __start)
/* Define a symbol for the first piece of initialized data. */
.data
.globl __data_start
__data_start:
.long 0
.weak data_start
data_start = __data_start
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