89 lines
2.8 KiB
NASM
89 lines
2.8 KiB
NASM
! gcrt1.s for solaris 2.0.
|
|
|
|
! Copyright (C) 1992 Free Software Foundation, Inc.
|
|
! Written By David Vinayak Henkel-Wallace, June 1992
|
|
!
|
|
! This file is free software; you can redistribute it and/or modify it
|
|
! under the terms of the GNU General Public License as published by the
|
|
! Free Software Foundation; either version 2, or (at your option) any
|
|
! later version.
|
|
!
|
|
! In addition to the permissions in the GNU General Public License, the
|
|
! Free Software Foundation gives you unlimited permission to link the
|
|
! compiled version of this file with other programs, and to distribute
|
|
! those programs without any restriction coming from the use of this
|
|
! file. (The General Public License restrictions do apply in other
|
|
! respects; for example, they cover modification of the file, and
|
|
! distribution when not linked into another program.)
|
|
!
|
|
! This file 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
|
|
! General Public License for more details.
|
|
!
|
|
! You should have received a copy of the GNU General Public License
|
|
! along with this program; see the file COPYING. If not, write to
|
|
! the Free Software Foundation, 59 Temple Place - Suite 330,
|
|
! Boston, MA 02111-1307, USA.
|
|
!
|
|
! As a special exception, if you link this library with files
|
|
! compiled with GCC to produce an executable, this does not cause
|
|
! the resulting executable to be covered by the GNU General Public License.
|
|
! This exception does not however invalidate any other reasons why
|
|
! the executable file might be covered by the GNU General Public License.
|
|
!
|
|
|
|
! This file takes control of the process from the kernel, as specified
|
|
! in section 3 of the SVr4 ABI.
|
|
! This file is the first thing linked into any executable.
|
|
|
|
.section ".text"
|
|
.proc 022
|
|
.global _start
|
|
|
|
_start:
|
|
mov 0, %fp ! Mark bottom frame pointer
|
|
ld [%sp + 64], %l0 ! argc
|
|
add %sp, 68, %l1 ! argv
|
|
|
|
! Leave some room for a call. Sun leaves 32 octets (to sit on
|
|
! a cache line?) so we do too.
|
|
sub %sp, 32, %sp
|
|
|
|
! %g1 may contain a function to be registered w/atexit
|
|
orcc %g0, %g1, %g0
|
|
be .nope
|
|
mov %g1, %o0
|
|
call atexit
|
|
nop
|
|
.nope:
|
|
! Now make sure constructors and destructors are handled.
|
|
set _fini, %o0
|
|
call atexit, 1
|
|
nop
|
|
call _init, 0
|
|
nop
|
|
|
|
! We ignore the auxiliary vector; there's no defined way to
|
|
! access those data anyway. Instead, go straight to main:
|
|
mov %l0, %o0 ! argc
|
|
mov %l1, %o1 ! argv
|
|
set ___Argv, %o3
|
|
st %o1, [%o3] ! *___Argv
|
|
! Skip argc words past argv, to env:
|
|
sll %l0, 2, %o2
|
|
add %o2, 4, %o2
|
|
add %l1, %o2, %o2 ! env
|
|
set _environ, %o3
|
|
st %o2, [%o3] ! *_environ
|
|
call main, 4
|
|
nop
|
|
call exit, 0
|
|
nop
|
|
call _exit, 0
|
|
nop
|
|
! We should never get here.
|
|
|
|
.type _start,#function
|
|
.size _start,.-_start
|