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# $Id: prt0.as,v 1.9 2004/07/05 21:07:38 florian Exp $
/* Startup code for elf32-sparc
Copyright (C) 1997, 1998 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Richard Henderson <richard@gnu.ai.mit.edu>, 1997.
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. */
.section ".text"
.align 4
.global _start
.type _start,#function
_start:
/* Terminate the stack frame, and reserve space for functions to
drop their arguments. */
mov %g0, %fp
sub %sp, 6*4, %sp
/* Extract the arguments and environment as encoded on the stack. The
argument info starts after one register window (16 words) past the SP. */
ld [%sp+22*4], %o2
sethi %hi(operatingsystem_parameter_argc),%o1
or %o1,%lo(operatingsystem_parameter_argc),%o1
st %o2, [%o1]
add %sp, 23*4, %o0
sethi %hi(operatingsystem_parameter_argv),%o1
or %o1,%lo(operatingsystem_parameter_argv),%o1
st %o0, [%o1]
/* envp=(argc+1)*4+argv */
inc %o2
sll %o2, 2, %o2
add %o2, %o0, %o2
sethi %hi(operatingsystem_parameter_envp),%o1
or %o1,%lo(operatingsystem_parameter_envp),%o1
st %o2, [%o1]
/* Call the user program entry point. */
call PASCALMAIN
nop
.globl _haltproc
.type _haltproc,@function
_haltproc:
mov 1, %g1 /* "exit" system call */
sethi %hi(operatingsystem_result),%o0
or %o0,%lo(operatingsystem_result),%o0
ldsh [%o0], %o0 /* give exit status to parent process*/
ta 0x10 /* dot the system call */
nop /* delay slot */
/* Die very horribly if exit returns. */
unimp
.size _start, .-_start
.comm operatingsystem_parameter_envp,4
.comm operatingsystem_parameter_argc,4
.comm operatingsystem_parameter_argv,4
#
# $Log: prt0.as,v $
# Revision 1.9 2004/07/05 21:07:38 florian
# * remade makefile (too old fpcmake)
# * fixed sparc startup code
#
# Revision 1.8 2004/07/03 21:50:31 daniel
# * Modified bootstrap code so separate prt0.as/prt0_10.as files are no
# longer necessary
#
# Revision 1.7 2004/05/27 23:15:02 peter
# * startup argc,argv,envp fix
# * stat fixed
#
# Revision 1.6 2004/05/17 20:56:56 peter
# * use ldsh to load exitcode
#
# Revision 1.5 2004/03/16 10:19:11 mazen
# + _haltproc definition for linux/sparc
#
# Revision 1.4 2003/06/02 22:03:37 mazen
# *making init and fini symbols compatible FPC code by
# changing _init ==> fpc_initialize
# and _fini ==> fpc_finalize
#
# Revision 1.3 2002/11/18 19:03:46 mazen
# * start code of gcc adapted for FPC
#
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