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193 lines
5.1 KiB
ArmAsm
193 lines
5.1 KiB
ArmAsm
/* ==== syscall.S ============================================================
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* Copyright (c) 1990 The Regents of the University of California.
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* Copyright (c) 1993 Chris Provenzano, proven@mit.edu
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* William Jolitz.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* Description : Machine dependent syscalls for i386/i486/i586
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*
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* 1.00 93/08/26 proven
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* -Started coding this file.
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*
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* 1.01 93/11/13 proven
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* -The functions readv() and writev() added.
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*/
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#ifndef lint
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.text
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.asciz "$Id$";
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#endif
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#if defined(SYSLIBC_SCCS) && !defined(lint)
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.asciz "@(#)syscall.s 5.1 (Berkeley) 4/23/90"
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#endif /* SYSLIBC_SCCS and not lint */
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#include <machine/asm.h>
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#include <sys/syscall.h>
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/*
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* Initial asm stuff for all functions.
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*/
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.text
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.align 0
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/* ==========================================================================
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* machdep_sys_fork()
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*/
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.globl _C_LABEL(machdep_sys_fork);
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_C_LABEL(machdep_sys_fork):;
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swi SYS_fork
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bcs 1f
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sub r1, r1, #0x00000001
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and r0, r0, r1
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mov r15, r14
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/* ==========================================================================
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* machdep_sys_fstat()
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*/
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.globl _C_LABEL(machdep_sys_fstat);
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_C_LABEL(machdep_sys_fstat):;
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swi SYS___fstat13
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bcs 1f
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mov r15, r14
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/* ==========================================================================
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* machdep_sys___syscall()
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*/
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_machdep_sys___syscall:;
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swi SYS___syscall
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bcs 1f
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mov r15, r14
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#ifndef SYS___sigsuspend14
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/* ==========================================================================
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* machdep_sys_sigsuspend()
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*/
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.globl _C_LABEL(machdep_sys_sigsuspend);
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_C_LABEL(machdep_sys_sigsuspend):;
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ldr r0, [r0]
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swi SYS_sigsuspend
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bcs 1f
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mov r0, #0x00000000
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mov r15, r14
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#endif
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#ifndef SYS___sigprocmask14
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/* ==========================================================================
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* machdep_sys_sigprocmask()
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*/
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.globl _C_LABEL(machdep_sys_sigprocmask);
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_C_LABEL(machdep_sys_sigprocmask):;
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teq r1, #0x00000000
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moveq r0, #0x00000001
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moveq r1, #0x00000000
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ldrne r1, [r1]
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swi SYS_sigprocmask
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bcs 1f
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teq r2, #0x00000000
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strne r0, [r2]
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mov r0, #0x00000000
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mov r15, r14
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#endif
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/* ==========================================================================
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* machdep_sys_ftruncate()
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*/
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.global _C_LABEL(machdep_sys_ftruncate)
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_C_LABEL(machdep_sys_ftruncate):
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mov r12, r13
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stmfd r13!, {r11, r12, r14, r15}
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sub r13, r13, #8
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stmia r13, {r1-r2}
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mov r3, #0
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sub r11, r12, #4
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mov r2, r0
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mov r1, #0
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mov r0, #201
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bl _machdep_sys___syscall
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ldmea r11, {r11, r13, r15}
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/* ==========================================================================
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* machdep_sys_lseek()
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*/
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.global _C_LABEL(machdep_sys_lseek)
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_C_LABEL(machdep_sys_lseek):
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mov r12, r13
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stmfd r13!, {r11, r12, r14, r15}
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str r3, [r13, #-4]!
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sub r13, r13, #8
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stmia r13, {r1-r2}
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sub r11, r12, #4
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mov r3, #0
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mov r2, r0
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mov r1, #0
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mov r0, #SYS_lseek
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bl _machdep_sys___syscall
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ldmea r11, {r11, r13, r15}
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/* ==========================================================================
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* machdep_sys_pipe()
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*/
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.globl _C_LABEL(machdep_sys_pipe);
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_C_LABEL(machdep_sys_pipe):;
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mov r2, r0
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swi SYS_pipe
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bcs 1f
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str r0, [r2, #0x0000]
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str r1, [r2, #0x0004]
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mov r0, #0x00000000
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mov r15, r14
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1:
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rsb r0, r0, #0x00000000
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mvn r1, #0x00000000
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mov r15, r14
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