1*83762a71Sderaadt/* $OpenBSD: sigprocmask.S,v 1.15 2023/12/10 16:45:51 deraadt Exp $ */ 22352eb10Sdrahn 32352eb10Sdrahn/* 42352eb10Sdrahn * Copyright (c) 1996 Dale Rahn 52352eb10Sdrahn * 62352eb10Sdrahn * Redistribution and use in source and binary forms, with or without 72352eb10Sdrahn * modification, are permitted provided that the following conditions 82352eb10Sdrahn * are met: 92352eb10Sdrahn * 1. Redistributions of source code must retain the above copyright 102352eb10Sdrahn * notice, this list of conditions and the following disclaimer. 112352eb10Sdrahn * 2. Redistributions in binary form must reproduce the above copyright 122352eb10Sdrahn * notice, this list of conditions and the following disclaimer in the 132352eb10Sdrahn * documentation and/or other materials provided with the distribution. 142352eb10Sdrahn * 152352eb10Sdrahn * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 162352eb10Sdrahn * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 172352eb10Sdrahn * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 182352eb10Sdrahn * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 192352eb10Sdrahn * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 202352eb10Sdrahn * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 212352eb10Sdrahn * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 222352eb10Sdrahn * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 232352eb10Sdrahn * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 242352eb10Sdrahn * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 252352eb10Sdrahn * SUCH DAMAGE. 262352eb10Sdrahn */ 272352eb10Sdrahn 28a4afd6daSrahnds/* sigprocmask(int how, const sigset_t *set, sigset_t *oset); */ 29a4afd6daSrahnds 30a4afd6daSrahnds#include "SYS.h" 31a4afd6daSrahnds 32a4afd6daSrahnds .text 33d2c5a474SgkoehlerSYSENTRY_HIDDEN(sigprocmask) 3415572fcfSgkoehler RETGUARD_SETUP(sigprocmask, %r11, %r12) 359b77f0e1Spefo stwu 1, -16(1) 369b77f0e1Spefo stw 5, 12(1) 37a4afd6daSrahnds 38a4afd6daSrahnds /* check set (new mask value) for null, in which case 39a4afd6daSrahnds fiddle arguments */ 40a4afd6daSrahnds cmpwi 4, 0 4145330cbfSrahnds bne+ .L_load_set 42a4afd6daSrahnds addi 3, 0, 1 /* how = SIG_BLOCK, new mask already 0 */ 4345330cbfSrahnds b .L_do_call 4445330cbfSrahnds.L_load_set: 45a4afd6daSrahnds lwz 4, 0(4) /* get new mask */ 4645330cbfSrahnds.L_do_call: 47a4afd6daSrahnds 48d2c5a474Sgkoehler li 0, SYS_sigprocmask 49*83762a71Sderaadt99: sc 50*83762a71Sderaadt PINSYSCALL(SYS_sigprocmask, 99b) 51a4afd6daSrahnds 52a4afd6daSrahnds /* didnt work? */ 53a4afd6daSrahnds cmpwi 0, 0 5445330cbfSrahnds beq+ .L_sigprocmask_ok 555e1df623Sguenther stw 0, R2_OFFSET_ERRNO(2) 565e1df623Sguenther li 3, -1 57d2c5a474Sgkoehler b .L_end 58a4afd6daSrahnds 5945330cbfSrahnds.L_sigprocmask_ok: 609b77f0e1Spefo lwz 5, 12(1) 61a4afd6daSrahnds cmpwi 5, 0 6245330cbfSrahnds beq+ .L_sigprocmask_done 639b77f0e1Spefo stw 3, 0(5) 6445330cbfSrahnds.L_sigprocmask_done: 653c0f1bd8Sdrahn li 3, 0 669b77f0e1Spefo addi 1, 1, 16 67d2c5a474Sgkoehler.L_end: 6815572fcfSgkoehler RETGUARD_CHECK(sigprocmask, %r11, %r12) 69a4afd6daSrahnds blr 705aed4d28SguentherSYSCALL_END_HIDDEN(sigprocmask) 71