linux_sig_notalpha.c revision 1.14
1 /* $NetBSD: linux_sig_notalpha.c,v 1.14 1998/10/01 02:27:34 erh Exp $ */ 2 3 /*- 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Eric Haszlakiewicz. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * Copyright (c) 1995 Frank van der Linden 41 * All rights reserved. 42 * 43 * Redistribution and use in source and binary forms, with or without 44 * modification, are permitted provided that the following conditions 45 * are met: 46 * 1. Redistributions of source code must retain the above copyright 47 * notice, this list of conditions and the following disclaimer. 48 * 2. Redistributions in binary form must reproduce the above copyright 49 * notice, this list of conditions and the following disclaimer in the 50 * documentation and/or other materials provided with the distribution. 51 * 3. All advertising materials mentioning features or use of this software 52 * must display the following acknowledgement: 53 * This product includes software developed for the NetBSD Project 54 * by Frank van der Linden 55 * 4. The name of the author may not be used to endorse or promote products 56 * derived from this software without specific prior written permission 57 * 58 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 59 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 60 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 61 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 62 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 63 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 64 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 65 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 66 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 67 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 68 * 69 * heavily from: svr4_signal.c,v 1.7 1995/01/09 01:04:21 christos Exp 70 */ 71 72 #include <sys/param.h> 73 #include <sys/systm.h> 74 #include <sys/proc.h> 75 #include <sys/filedesc.h> 76 #include <sys/mount.h> 77 #include <sys/kernel.h> 78 #include <sys/signal.h> 79 #include <sys/signalvar.h> 80 81 #include <sys/syscallargs.h> 82 83 #include <compat/linux/linux_types.h> 84 #include <compat/linux/linux_signal.h> 85 #include <compat/linux/linux_syscallargs.h> 86 #include <compat/linux/linux_util.h> 87 88 /* Used on: arm, i386, m68k, mips, sparc, sparc64 */ 89 /* Not used on: alpha */ 90 91 /* 92 * The Linux signal() system call. I think that the signal() in the C 93 * library actually calls sigaction, so I doubt this one is ever used. 94 * But hey, it can't hurt having it here. The same restrictions as for 95 * sigaction() apply. 96 */ 97 int 98 linux_sys_signal(p, v, retval) 99 register struct proc *p; 100 void *v; 101 register_t *retval; 102 { 103 struct linux_sys_signal_args /* { 104 syscallarg(int) sig; 105 syscallarg(linux_handler_t) handler; 106 } */ *uap = v; 107 struct sigaction nbsa, obsa; 108 int error; 109 110 nbsa.sa_handler = SCARG(uap, handler); 111 sigemptyset(&nbsa.sa_mask); 112 nbsa.sa_flags = SA_RESETHAND | SA_NODEFER; 113 error = sigaction1(p, linux_to_native_sig[SCARG(uap, sig)], 114 &nbsa, &obsa); 115 if (error) 116 return (error); 117 *retval = (int)obsa.sa_handler; 118 return (0); 119 } 120 121 122 /* ARGSUSED */ 123 int 124 linux_sys_siggetmask(p, v, retval) 125 register struct proc *p; 126 void *v; 127 register_t *retval; 128 { 129 sigset_t bss; 130 linux_old_sigset_t lss; 131 int error; 132 133 error = sigprocmask1(p, SIG_SETMASK, 0, &bss); 134 if (error) 135 return (error); 136 native_to_linux_old_sigset(&bss, &lss); 137 return (0); 138 } 139 140 /* 141 * The following three functions fiddle with a process' signal mask. 142 * Convert the signal masks because of the different signal 143 * values for Linux. The need for this is the reason why 144 * they are here, and have not been mapped directly. 145 */ 146 int 147 linux_sys_sigsetmask(p, v, retval) 148 register struct proc *p; 149 void *v; 150 register_t *retval; 151 { 152 struct linux_sys_sigsetmask_args /* { 153 syscallarg(linux_old_sigset_t) mask; 154 } */ *uap = v; 155 sigset_t nbss, obss; 156 linux_old_sigset_t nlss, olss; 157 int error; 158 159 nlss = SCARG(uap, mask); 160 linux_old_to_native_sigset(&nlss, &nbss); 161 error = sigprocmask1(p, SIG_SETMASK, &nbss, &obss); 162 if (error) 163 return (error); 164 native_to_linux_old_sigset(&obss, &olss); 165 *retval = olss; 166 return (0); 167 } 168 169 170 /* 171 * The deprecated pause(2), which is really just an instance 172 * of sigsuspend(2). 173 */ 174 int 175 linux_sys_pause(p, v, retval) 176 register struct proc *p; 177 void *v; 178 register_t *retval; 179 { 180 181 return (sigsuspend1(p, 0)); 182 } 183
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