1 /* $NetBSD: SYS.h,v 1.6 2007/11/18 13:25:39 skrll Exp $ */ 2 3 /* $OpenBSD: SYS.h,v 1.9 2001/09/20 20:52:09 millert Exp $ */ 4 5 /* 6 * Copyright (c) 1998-1999 Michael Shalayeff 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by Michael Shalayeff. 20 * 4. The name of the author may not be used to endorse or promote products 21 * derived from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 25 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 26 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 27 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 28 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF MIND 29 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 32 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35 #include <sys/syscall.h> 36 #include <machine/asm.h> 37 #include <machine/vmparam.h> 38 #undef _LOCORE 39 #define _LOCORE 40 #include <machine/frame.h> 41 42 #define SYSENTRY(x) LEAF_ENTRY(x) 43 #define SYSEXIT(x) EXIT(x) 44 45 #define SYSCALL(x) !\ 46 stw %rp, HPPA_FRAME_ERP(%sr0,%sp) !\ 47 ldil L%SYSCALLGATE, %r1 !\ 48 ble 4(%sr7, %r1) !\ 49 ldi __CONCAT(SYS_,x), %t1 !\ 50 .import __cerror, code !\ 51 comb,<> %r0, %t1, __cerror !\ 52 ldw HPPA_FRAME_ERP(%sr0,%sp), %rp 53 54 #define PSEUDO(x,y) !\ 55 SYSENTRY(x) !\ 56 SYSCALL(y) !\ 57 bv %r0(%rp) !\ 58 nop !\ 59 SYSEXIT(x) 60 61 #define PSEUDO_NOERROR(x,y) !\ 62 SYSENTRY(x) !\ 63 stw %rp, HPPA_FRAME_ERP(%sr0,%sp) !\ 64 ldil L%SYSCALLGATE, %r1 !\ 65 ble 4(%sr7, %r1) !\ 66 ldi __CONCAT(SYS_,y), %t1 !\ 67 ldw HPPA_FRAME_ERP(%sr0,%sp), %rp !\ 68 bv %r0(%rp) !\ 69 nop !\ 70 SYSEXIT(x) 71 72 #define RSYSCALL(x) PSEUDO(x,x) 73 #define RSYSCALL_NOERROR(x) PSEUDO_NOERROR(x,x) 74 75 #ifdef WEAK_ALIAS 76 #define WSYSCALL(weak,strong) !\ 77 WEAK_ALIAS(weak,strong) !\ 78 PSEUDO(strong,weak) 79 #else 80 #define WSYSCALL(weak,strong) !\ 81 PSEUDO(weak,weak) 82 #endif 83