1 /* $OpenBSD: SYS.h,v 1.3 2023/12/11 22:29:24 deraadt Exp $ */ 2 3 /* 4 * Copyright (c) 2004 Michael Shalayeff 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT, 20 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 22 * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 24 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 25 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 26 * THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/syscall.h> 30 #include <machine/asm.h> 31 #define _LOCORE 32 #include <machine/frame.h> 33 #include <machine/vmparam.h> 34 #undef _LOCORE 35 36 #define PINSYSCALL(sysno, label) \ 37 .pushsection .openbsd.syscalls,"",@progbits !\ 38 .p2align 2 !\ 39 .long label !\ 40 .long sysno !\ 41 .popsection 42 43 #define DL_SYSCALL(x) \ 44 ENTRY(__CONCAT(_dl_,x),0) !\ 45 stw rp, HPPA_FRAME_ERP(sr0,sp) !\ 46 ldil L%SYSCALLGATE, r1 !\ 47 99: ble 4(sr7, r1) !\ 48 PINSYSCALL(__CONCAT(SYS_,x), 99b) !\ 49 ldi __CONCAT(SYS_,x), t1 !\ 50 comb,<> r0, t1, _dl_sysexit !\ 51 ldw HPPA_FRAME_ERP(sr0,sp), rp !\ 52 bv r0(rp) !\ 53 nop !\ 54 _dl_sysexit !\ 55 bv r0(rp) !\ 56 sub r0, ret0, ret0 !\ 57 EXIT(__CONCAT(_dl_,x)) 58