| 1 | /* $Id: RTProcSignalName-generic.cpp 98103 2023-01-17 14:15:46Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT - RTProcSignalName, generic implementation.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2022-2023 Oracle and/or its affiliates.
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| 8 | *
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| 9 | * This file is part of VirtualBox base platform packages, as
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| 10 | * available from https://www.virtualbox.org.
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| 11 | *
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| 12 | * This program is free software; you can redistribute it and/or
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| 13 | * modify it under the terms of the GNU General Public License
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| 14 | * as published by the Free Software Foundation, in version 3 of the
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| 15 | * License.
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| 16 | *
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| 17 | * This program is distributed in the hope that it will be useful, but
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| 18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 20 | * General Public License for more details.
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| 21 | *
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| 22 | * You should have received a copy of the GNU General Public License
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| 23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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| 24 | *
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| 25 | * The contents of this file may alternatively be used under the terms
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| 26 | * of the Common Development and Distribution License Version 1.0
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| 27 | * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
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| 28 | * in the VirtualBox distribution, in which case the provisions of the
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| 29 | * CDDL are applicable instead of those of the GPL.
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| 30 | *
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| 31 | * You may elect to license modified versions of this file under the
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| 32 | * terms and conditions of either the GPL or the CDDL or both.
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| 33 | *
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| 34 | * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
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| 35 | */
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| 36 |
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| 37 |
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| 38 | /*********************************************************************************************************************************
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| 39 | * Header Files *
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| 40 | *********************************************************************************************************************************/
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| 41 | #include <iprt/process.h>
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| 42 | #include "internal/iprt.h"
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| 43 |
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| 44 | #include <iprt/asm.h>
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| 45 | #include <iprt/string.h>
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| 46 |
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| 47 | #include <signal.h>
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| 48 |
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| 49 |
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| 50 | RTDECL(const char *) RTProcSignalName(int iSignal)
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| 51 | {
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| 52 | #if !defined(IPRT_NO_CRT) || !defined(RT_OS_WINDOWS)
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| 53 | switch (iSignal)
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| 54 | {
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| 55 | /*
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| 56 | * Typical bsd/xnu ones:
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| 57 | */
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| 58 | # ifdef SIGHUP
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| 59 | RT_CASE_RET_STR(SIGHUP);
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| 60 | # endif
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| 61 | # ifdef SIGINT
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| 62 | RT_CASE_RET_STR(SIGINT);
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| 63 | # endif
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| 64 | # ifdef SIGQUIT
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| 65 | RT_CASE_RET_STR(SIGQUIT);
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| 66 | # endif
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| 67 | # ifdef SIGILL
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| 68 | RT_CASE_RET_STR(SIGILL);
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| 69 | # endif
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| 70 | # ifdef SIGTRAP
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| 71 | RT_CASE_RET_STR(SIGTRAP);
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| 72 | # endif
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| 73 | # ifdef SIGABRT
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| 74 | RT_CASE_RET_STR(SIGABRT);
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| 75 | # endif
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| 76 | # ifdef SIGEMT
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| 77 | RT_CASE_RET_STR(SIGEMT);
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| 78 | # endif
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| 79 | # ifdef SIGPOLL
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| 80 | RT_CASE_RET_STR(SIGPOLL);
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| 81 | # endif
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| 82 | # ifdef SIGFPE
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| 83 | RT_CASE_RET_STR(SIGFPE);
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| 84 | # endif
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| 85 | # ifdef SIGKILL
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| 86 | RT_CASE_RET_STR(SIGKILL);
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| 87 | # endif
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| 88 | # ifdef SIGBUS
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| 89 | RT_CASE_RET_STR(SIGBUS);
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| 90 | # endif
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| 91 | # ifdef SIGSEGV
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| 92 | RT_CASE_RET_STR(SIGSEGV);
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| 93 | # endif
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| 94 | # ifdef SIGSYS
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| 95 | RT_CASE_RET_STR(SIGSYS);
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| 96 | # endif
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| 97 | # ifdef SIGPIPE
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| 98 | RT_CASE_RET_STR(SIGPIPE);
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| 99 | # endif
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| 100 | # ifdef SIGALRM
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| 101 | RT_CASE_RET_STR(SIGALRM);
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| 102 | # endif
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| 103 | # ifdef SIGTERM
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| 104 | RT_CASE_RET_STR(SIGTERM);
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| 105 | # endif
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| 106 | # ifdef SIGURG
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| 107 | RT_CASE_RET_STR(SIGURG);
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| 108 | # endif
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| 109 | # ifdef SIGSTOP
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| 110 | RT_CASE_RET_STR(SIGSTOP);
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| 111 | # endif
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| 112 | # ifdef SIGTSTP
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| 113 | RT_CASE_RET_STR(SIGTSTP);
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| 114 | # endif
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| 115 | # ifdef SIGCONT
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| 116 | RT_CASE_RET_STR(SIGCONT);
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| 117 | # endif
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| 118 | # ifdef SIGCHLD
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| 119 | RT_CASE_RET_STR(SIGCHLD);
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| 120 | # endif
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| 121 | # ifdef SIGTTIN
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| 122 | RT_CASE_RET_STR(SIGTTIN);
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| 123 | # endif
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| 124 | # ifdef SIGTTOU
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| 125 | RT_CASE_RET_STR(SIGTTOU);
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| 126 | # endif
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| 127 | # ifdef SIGIO
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| 128 | # if !defined(SIGPOLL) || (SIGPOLL+0) != SIGIO
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| 129 | RT_CASE_RET_STR(SIGIO);
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| 130 | # endif
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| 131 | # endif
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| 132 | # ifdef SIGXCPU
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| 133 | RT_CASE_RET_STR(SIGXCPU);
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| 134 | # endif
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| 135 | # ifdef SIGXFSZ
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| 136 | RT_CASE_RET_STR(SIGXFSZ);
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| 137 | # endif
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| 138 | # ifdef SIGVTALRM
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| 139 | RT_CASE_RET_STR(SIGVTALRM);
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| 140 | # endif
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| 141 | # ifdef SIGPROF
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| 142 | RT_CASE_RET_STR(SIGPROF);
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| 143 | # endif
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| 144 | # ifdef SIGWINCH
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| 145 | RT_CASE_RET_STR(SIGWINCH);
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| 146 | # endif
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| 147 | # ifdef SIGINFO
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| 148 | RT_CASE_RET_STR(SIGINFO);
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| 149 | # endif
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| 150 | # ifdef SIGUSR1
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| 151 | RT_CASE_RET_STR(SIGUSR1);
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| 152 | # endif
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| 153 | # ifdef SIGUSR2
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| 154 | RT_CASE_RET_STR(SIGUSR2);
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| 155 | # endif
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| 156 | # ifdef SIGTHR
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| 157 | RT_CASE_RET_STR(SIGTHR);
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| 158 | # endif
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| 159 | # ifdef SIGLIBRT
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| 160 | RT_CASE_RET_STR(SIGLIBRT);
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| 161 | # endif
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| 162 |
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| 163 | /*
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| 164 | * Additional linux ones:
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| 165 | */
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| 166 | # ifdef SIGIOT
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| 167 | # if !defined(SIGABRT) || (SIGABRT+0) != SIGIOT
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| 168 | RT_CASE_RET_STR(SIGIOT);
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| 169 | # endif
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| 170 | # endif
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| 171 | # ifdef SIGSTKFLT
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| 172 | RT_CASE_RET_STR(SIGSTKFLT);
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| 173 | # endif
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| 174 | # ifdef SIGLOST
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| 175 | RT_CASE_RET_STR(SIGLOST);
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| 176 | # endif
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| 177 | # ifdef SIGPWR
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| 178 | RT_CASE_RET_STR(SIGPWR);
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| 179 | # endif
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| 180 | # ifdef SIGUNUSED
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| 181 | # if !defined(SIGSYS) || (SIGSYS+0) != SIGUNUSED
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| 182 | RT_CASE_RET_STR(SIGUNUSED);
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| 183 | # endif
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| 184 | # endif
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| 185 | }
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| 186 | #endif
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| 187 |
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| 188 | #if defined(SIGRTMIN) && defined(SIGRTMAX)
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| 189 | /*
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| 190 | * Real time signals.
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| 191 | *
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| 192 | * This cannot be done in the switch/case setup because glibc maps SIGRTMIN
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| 193 | * and SIGRTMAX to internal libc calls that dynamically resolves their values.
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| 194 | */
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| 195 | static char const s_szSigRt[] =
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| 196 | "SIGRT00\0" "SIGRT01\0" "SIGRT02\0" "SIGRT03\0" "SIGRT04\0" "SIGRT05\0" "SIGRT06\0" "SIGRT07\0" "SIGRT08\0" "SIGRT09\0"
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| 197 | "SIGRT10\0" "SIGRT11\0" "SIGRT12\0" "SIGRT13\0" "SIGRT14\0" "SIGRT15\0" "SIGRT16\0" "SIGRT17\0" "SIGRT18\0" "SIGRT19\0"
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| 198 | "SIGRT20\0" "SIGRT21\0" "SIGRT22\0" "SIGRT23\0" "SIGRT24\0" "SIGRT25\0" "SIGRT26\0" "SIGRT27\0" "SIGRT28\0" "SIGRT29\0"
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| 199 | "SIGRT30\0" "SIGRT31\0" "SIGRT32\0" "SIGRT33\0" "SIGRT34\0" "SIGRT35\0" "SIGRT36\0" "SIGRT37\0" "SIGRT38\0" "SIGRT39\0"
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| 200 | "SIGRT40\0" "SIGRT41\0" "SIGRT42\0" "SIGRT43\0" "SIGRT44\0" "SIGRT45\0" "SIGRT46\0" "SIGRT47\0" "SIGRT48\0" "SIGRT49\0"
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| 201 | "SIGRT50\0" "SIGRT51\0" "SIGRT52\0" "SIGRT53\0" "SIGRT54\0" "SIGRT55\0" "SIGRT56\0" "SIGRT57\0" "SIGRT58\0" "SIGRT59\0"
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| 202 | "SIGRT60\0" "SIGRT61\0" "SIGRT62\0" "SIGRT63\0" "SIGRT64\0";
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| 203 | int const iSigRtMin = SIGRTMIN;
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| 204 | if (iSignal >= iSigRtMin && iSignal <= SIGRTMAX)
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| 205 | {
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| 206 | unsigned uRtSig = (unsigned)(iSignal - iSigRtMin);
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| 207 | if (uRtSig < (sizeof(s_szSigRt) - 1) / sizeof("SIGRT00"))
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| 208 | return &s_szSigRt[uRtSig * sizeof("SIGRT00")];
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| 209 | }
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| 210 | #endif /* SIGRTMIN */
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| 211 |
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| 212 | /*
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| 213 | * Do fallback: SIG+nnnn.
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| 214 | */
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| 215 | static struct { char sz[16]; } s_aFallback[16];
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| 216 | static uint32_t volatile s_iFallback = 0;
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| 217 | uint32_t const iFallback = ASMAtomicIncU32(&s_iFallback) % RT_ELEMENTS(s_aFallback);
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| 218 | s_aFallback[iFallback].sz[0] = 'S';
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| 219 | s_aFallback[iFallback].sz[1] = 'I';
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| 220 | s_aFallback[iFallback].sz[2] = 'G';
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| 221 | RTStrFormatU32(&s_aFallback[iFallback].sz[3], sizeof(s_aFallback[iFallback].sz) - 3, iSignal,
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| 222 | 10, 0, 0, RTSTR_F_PLUS | RTSTR_F_VALSIGNED);
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| 223 | return s_aFallback[iFallback].sz;
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| 224 | }
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| 225 | RT_EXPORT_SYMBOL(RTProcSignalName);
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| 226 |
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