mirror of
https://gitlab.com/freepascal.org/fpc/source.git
synced 2025-10-20 02:31:44 +02:00
94f2b1d941
PASCALMAIN is called so the main body framepointer is seen as
a valid pointer with backtracing
git-svn-id: trunk@2266 -
80 lines
2.4 KiB
ActionScript
80 lines
2.4 KiB
ActionScript
/* 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]
|
|
|
|
/* Save initial stackpointer */
|
|
sethi %hi(__stkptr),%o1
|
|
or %o1,%lo(__stkptr),%o1
|
|
st %sp, [%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 __stkptr,4
|
|
|
|
.comm operatingsystem_parameter_envp,4
|
|
.comm operatingsystem_parameter_argc,4
|
|
.comm operatingsystem_parameter_argv,4
|