diff options
Diffstat (limited to 'mit-pthreads/machdep/syscall-i386-freebsd-2.0.S')
| -rw-r--r-- | mit-pthreads/machdep/syscall-i386-freebsd-2.0.S | 240 |
1 files changed, 240 insertions, 0 deletions
diff --git a/mit-pthreads/machdep/syscall-i386-freebsd-2.0.S b/mit-pthreads/machdep/syscall-i386-freebsd-2.0.S new file mode 100644 index 00000000000..b713bcac344 --- /dev/null +++ b/mit-pthreads/machdep/syscall-i386-freebsd-2.0.S @@ -0,0 +1,240 @@ +/* ==== syscall.S ============================================================ + * Copyright (c) 1990 The Regents of the University of California. + * Copyright (c) 1995 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 + * + */ + +#ifndef lint + .text + .asciz "syscall-i386-freebsd-2.0.S,v 1.2 1995/05/26 07:44:29 proven Exp"; +#endif + +#if defined(SYSLIBC_SCCS) && !defined(lint) + .asciz "@(#)syscall.s 5.1 (Berkeley) 4/23/90" +#endif /* SYSLIBC_SCCS and not lint */ + +#include <sys/syscall.h> + +#ifdef __STDC__ + +#ifdef __ELF__ +#define NAME(X) machdep_sys_##X +#else +#define NAME(X) _machdep_sys_##X +#endif + +#else + +#ifdef __ELF__ +#define NAME(X) machdep_sys_/**/X +#else +#define NAME(X) _machdep_sys_/**/X +#endif + +#endif + +#ifdef __ELF__ +#define END(X) 5: ; .type NAME(X),@function ; .size NAME(X),5b - NAME(X) +#define KERNCALL int $0x80 +#else +#define END(X) +#define KERNCALL .byte 0x9a; .long 0; .word 7; +#endif + +/* + * 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 NAME(fork); + +NAME(fork):; + + movl $(SYS_fork), %eax; + KERNCALL; + cmpl $0, %edx + je 2f + movl $0, %eax +2: + ret; + END(fork) + +/* ========================================================================== + * machdep_sys___syscall() + */ + +_machdep_sys___syscall:; + + movl $(SYS___syscall), %eax; + KERNCALL; + jb 3f; + ret + +/* ========================================================================== + * machdep_sys_sigsuspend() + */ + .globl NAME(sigsuspend); + +NAME(sigsuspend):; + + movl 4(%esp),%eax # fetch mask arg + movl (%eax),%eax # indirect to mask arg + movl %eax,4(%esp) + movl $(SYS_sigsuspend), %eax; + KERNCALL; + jb 3f; + ret +3: + neg %eax + movl $0xffffffff,%edx + ret + END(sigsuspend) + +/* ========================================================================== + * machdep_sys_sigprocmask() + */ + .globl NAME(sigprocmask); + +NAME(sigprocmask):; + + movl 8(%esp),%ecx + movl (%ecx),%ecx + movl %ecx,8(%esp) + movl $ SYS_sigprocmask , %eax + KERNCALL; + jb 4f; + ret +4: + neg %eax + movl $0xffffffff,%edx + ret + END(sigprocmask) + +/* ========================================================================== + * machdep_sys_lseek() + */ + .globl NAME(lseek); + +NAME(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 + END(lseek) + +/* ========================================================================== + * machdep_sys_ftruncate() ; Added by Monty + */ + .globl NAME(ftruncate); + +NAME(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 + END(ftruncate) + +/* ========================================================================== + * machdep_sys_setjmp() + */ + .globl NAME(setjmp); + +NAME(setjmp):; + movl 4(%esp),%eax + movl 0(%esp),%edx + movl %edx, 0(%eax) /* rta */ + movl %ebx, 4(%eax) + movl %esp, 8(%eax) + movl %ebp,12(%eax) + movl %esi,16(%eax) + movl %edi,20(%eax) + xorl %eax,%eax + ret + END(setjmp) + +/* ========================================================================== + * machdep_sys_longjmp() + */ + .globl NAME(longjmp); + +NAME(longjmp):; + movl 4(%esp),%edx + movl 8(%esp),%eax + movl 0(%edx),%ecx + movl 4(%edx),%ebx + movl 8(%edx),%esp + movl 12(%edx),%ebp + movl 16(%edx),%esi + movl 20(%edx),%edi + testl %eax,%eax + jnz 1f + incl %eax +1: + movl %ecx,0(%esp) + ret + END(longjmp) |