/* ==== 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 "syscall-i386-netbsd-1.0.S,v 1.56 1995/09/26 21:04:05 raeburn Exp"; #endif #if defined(SYSLIBC_SCCS) && !defined(lint) .asciz "@(#)syscall.s 5.1 (Berkeley) 4/23/90" #endif /* SYSLIBC_SCCS and not lint */ #include /* * 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 /* BSDI DEFS.h,v 2.1 1995/02/03 06:28:24 polk Exp */ /*- * Copyright (c) 1990, 1993 * The Regents of the University of California. 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. * * @(#)DEFS.h 8.1 (Berkeley) 6/4/93 */ #ifdef PROF #define ENTRY(x) .globl _/**/x; .align 2; _/**/x: \ .data; 1:; .long 0; .text; \ pushl %ebp; movl %esp,%ebp; \ leal 1b,%eax; call mcount; leave #define ASENTRY(x) .globl x; .align 2; x: \ .data; 1:; .long 0; .text; \ pushl %ebp; movl %esp,%ebp; \ leal 1b,%eax; call mcount; leave #else #define ENTRY(x) .globl _/**/x; .align 2; _/**/x: #define ASENTRY(x) .globl x; .align 2; x: #endif /*- * Copyright (c) 1990, 1993 * The Regents of the University of California. 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. */ #if defined(LIBC_SCCS) && !defined(lint) .asciz "@(#)_setjmp.s 8.1 (Berkeley) 6/4/93" #endif /* LIBC_SCCS and not lint */ /* * C library -- _setjmp, _longjmp * * _longjmp(a,v) * will generate a "return(v)" from the last call to * _setjmp(a) * by restoring registers from the stack. * The previous signal state is NOT restored. */ .globl __setjmp; /* Patch by Jan Legenhausen (monty) */ .align 2; __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) movl $0,%eax ret .globl __longjmp; /* Patch by Jan Legenhausen ? (monty) */ .align 2; __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 cmpl $0,%eax jne 1f movl $1,%eax 1: movl %ecx,0(%esp) ret