/* $OpenBSD: SYS.h,v 1.1.1.1 2006/10/10 22:07:10 miod Exp $ */ /*- * Copyright (c) 1990 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. 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. * * from: @(#)SYS.h 5.5 (Berkeley) 5/7/91 * $NetBSD: SYS.h,v 1.9 2006/01/06 06:19:20 uwe Exp $ */ #include #include #ifdef __STDC__ #define SYSENTRY(x) \ .weak _C_LABEL(x); \ _C_LABEL(x) = _C_LABEL(_thread_sys_ ## x); \ ENTRY(_thread_sys_ ## x) #else #define SYSENTRY(x) \ .weak _C_LABEL(x); \ _C_LABEL(x) = _C_LABEL(_thread_sys_/**/x); \ ENTRY(_thread_sys_/**/x) #endif #ifdef __STDC__ #define SYSTRAP(x) \ mov.l 903f, r0; \ .word 0xc380; /* trapa #0x80; */ \ bra 904f; \ nop; \ .align 2; \ 903: .long (SYS_ ## x); \ 904: #else #define SYSTRAP(x) \ mov.l 903f, r0; \ trapa #0x80; \ bra 904f; \ nop; \ .align 2; \ 903: .long (SYS_/**/x); \ 904: #endif #define CERROR _C_LABEL(__cerror) #define _SYSCALL_NOERROR(x,y) \ SYSENTRY(x); \ SYSTRAP(y) #ifdef PIC #define JUMP_CERROR \ mov r0, r4; \ mov.l 912f, r1; \ mova 912f, r0; \ mov.l 913f, r2; \ add r1, r0; \ mov.l @(r0, r2), r3; \ jmp @r3; \ nop; \ .align 2; \ 912: .long _GLOBAL_OFFSET_TABLE_; \ 913: .long PIC_GOT(CERROR) #else /* !PIC */ #define JUMP_CERROR \ mov.l 912f, r3; \ jmp @r3; \ mov r0, r4; \ .align 2; \ 912: .long CERROR #endif /* !PIC */ #define _SYSCALL(x,y) \ .text; \ 911: JUMP_CERROR; \ _SYSCALL_NOERROR(x,y); \ bf 911b #define SYSCALL_NOERROR(x) \ _SYSCALL_NOERROR(x,x) #define SYSCALL(x) \ _SYSCALL(x,x) #define PSEUDO_NOERROR(x,y) \ _SYSCALL_NOERROR(x,y); \ rts; \ nop #define PSEUDO(x,y) \ _SYSCALL(x,y); \ rts; \ nop #define RSYSCALL_NOERROR(x) \ PSEUDO_NOERROR(x,x) #define RSYSCALL(x) \ PSEUDO(x,x) .globl CERROR