glibc/sysdeps/unix/bsd/osf/alpha/start.S
2001-07-06 04:56:23 +00:00

67 lines
1.5 KiB
ArmAsm

/* Copyright (C) 1993, 1995, 1997 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Brendan Kehoe (brendan@zen.org).
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>
#if 0
.sdata
.globl STARTFRM
STARTFRM = 0
#endif
.text
ENTRY(__start)
lda sp, -16(sp)
stq zero, 8(sp)
/* This branch puts the address of the current insn in t0. */
br t0, 10f
10:
/* We set the GP register by using the address of the ldgp */
/* (what we just put into t0). */
ldgp gp, 0(t0)
/* get argc */
ldl a0, 16(sp)
/* get argv */
lda a1, 24(sp)
/* move ahead to envp */
s8addq a0, a1, a2
addq a2, 0x8, a2
/* Store in environ. */
stq a2, environ
/* Clear out errno. */
/* ldgp gp, 0(t12) */
stl zero, errno
/* Call main. */
jsr ra, main
ldgp gp, 0(ra)
mov v0, a0
jsr ra, exit
ldgp gp, 0(ra)
.end __start