diff options
Diffstat (limited to 'mit-pthreads/machdep/syscall-i386-netbsd-1.0.S')
| -rw-r--r-- | mit-pthreads/machdep/syscall-i386-netbsd-1.0.S | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/mit-pthreads/machdep/syscall-i386-netbsd-1.0.S b/mit-pthreads/machdep/syscall-i386-netbsd-1.0.S new file mode 100644 index 00000000000..da535dd2f80 --- /dev/null +++ b/mit-pthreads/machdep/syscall-i386-netbsd-1.0.S @@ -0,0 +1,158 @@ +/* ==== syscall.S ============================================================ + * Copyright (c) 1990 The Regents of the University of California. + * Copyright (c) 1993 Chris Provenzano, proven@mit.edu + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * William Jolitz. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * Description : Machine dependent syscalls for i386/i486/i586 + * + * 1.00 93/08/26 proven + * -Started coding this file. + * + * 1.01 93/11/13 proven + * -The functions readv() and writev() added. + */ + +#ifndef lint + .text + .asciz "$Id$"; +#endif + +#if defined(SYSLIBC_SCCS) && !defined(lint) + .asciz "@(#)syscall.s 5.1 (Berkeley) 4/23/90" +#endif /* SYSLIBC_SCCS and not lint */ + +#include <machine/asm.h> +#include <sys/syscall.h> + +/* + * Initial asm stuff for all functions. + */ + .text + .align 2 + + +/* ========================================================================== + * error code for all syscalls. The error value is returned as the negative + * of the errno value. + */ + +1: + neg %eax + ret + +/* ========================================================================== + * machdep_sys_fork() + */ + .globl _machdep_sys_fork; + +_machdep_sys_fork:; + + movl $(SYS_fork), %eax; + .byte 0x9a; .long 0; .word 7; + cmpl $0, %edx + je 2f + movl $0, %eax +2: + ret; + +/* ========================================================================== + * machdep_sys___syscall() + */ + +_machdep_sys___syscall:; + + movl $(SYS___syscall), %eax; + .byte 0x9a; .long 0; .word 7; + jb 3f; + ret + +/* ========================================================================== + * machdep_sys_sigsuspend() + */ + .globl _machdep_sys_sigsuspend; + +_machdep_sys_sigsuspend:; + + movl 4(%esp),%eax # fetch mask arg + movl (%eax),%eax # indirect to mask arg + movl %eax,4(%esp) + movl $(SYS_sigsuspend), %eax; + .byte 0x9a; .long 0; .word 7; + jb 3f; + ret + +3: + + neg %eax + movl $0xffffffff,%edx + ret + +/* ========================================================================== + * machdep_sys_lseek() + */ + .globl _machdep_sys_lseek; + +_machdep_sys_lseek:; + + pushl %ebp; + movl %esp,%ebp; + pushl 0x14(%ebp); + pushl 0x10(%ebp); + pushl 0xc(%ebp); + pushl $0x0; + pushl 0x8(%ebp); + pushl $0x0; + pushl $(SYS_lseek); + call _machdep_sys___syscall; + leave + ret + +/* ========================================================================== + * machdep_sys_ftruncate() ; Added by Monty + */ + .globl _machdep_sys_ftruncate; + +_machdep_sys_ftruncate:; + + pushl %ebp; + movl %esp,%ebp; + pushl 0x10(%ebp); + pushl 0xc(%ebp); + pushl $0x0; # Why this? + pushl 0x8(%ebp); + pushl $0x0; # And this? + pushl $(SYS_ftruncate); + call _machdep_sys___syscall; + leave + ret |