1/* Convert between signal names and numbers. 2Copyright (C) 1990,92,93,95,96,99, 2002 Free Software Foundation, Inc. 3This file was part of the GNU C Library, but is now part of GNU make. 4 5GNU Make is free software; you can redistribute it and/or modify 6it under the terms of the GNU General Public License as published by 7the Free Software Foundation; either version 2, or (at your option) 8any later version. 9 10GNU Make is distributed in the hope that it will be useful, 11but WITHOUT ANY WARRANTY; without even the implied warranty of 12MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13GNU General Public License for more details. 14 15You should have received a copy of the GNU General Public License 16along with GNU Make; see the file COPYING. If not, write to 17the Free Software Foundation, Inc., 59 Temple Place - Suite 330, 18Boston, MA 02111-1307, USA. */ 19 20#include "make.h" 21 22/* If the system provides strsignal, we don't need it. */ 23 24#if !defined(HAVE_STRSIGNAL) 25 26/* If the system provides sys_siglist, we'll use that. 27 Otherwise create our own. 28 */ 29 30#if !defined(SYS_SIGLIST_DECLARED) 31 32/* Some systems do not define NSIG in <signal.h>. */ 33#ifndef NSIG 34#ifdef _NSIG 35#define NSIG _NSIG 36#else 37#define NSIG 32 38#endif 39#endif 40 41/* There is too much variation in Sys V signal numbers and names, so 42 we must initialize them at runtime. */ 43 44static const char *undoc; 45 46static const char *sys_siglist[NSIG]; 47 48/* Table of abbreviations for signals. Note: A given number can 49 appear more than once with different abbreviations. */ 50#define SIG_TABLE_SIZE (NSIG*2) 51 52typedef struct 53 { 54 int number; 55 const char *abbrev; 56 } num_abbrev; 57 58static num_abbrev sig_table[SIG_TABLE_SIZE]; 59 60/* Number of elements of sig_table used. */ 61static int sig_table_nelts = 0; 62 63/* Enter signal number NUMBER into the tables with ABBREV and NAME. */ 64 65static void 66init_sig (number, abbrev, name) 67 int number; 68 const char *abbrev; 69 const char *name; 70{ 71 /* If this value is ever greater than NSIG it seems like it'd be a bug in 72 the system headers, but... better safe than sorry. We know, for 73 example, that this isn't always true on VMS. */ 74 75 if (number >= 0 && number < NSIG) 76 sys_siglist[number] = name; 77 78 if (sig_table_nelts < SIG_TABLE_SIZE) 79 { 80 sig_table[sig_table_nelts].number = number; 81 sig_table[sig_table_nelts++].abbrev = abbrev; 82 } 83} 84 85static int 86signame_init () 87{ 88 int i; 89 90 undoc = xstrdup (_("unknown signal")); 91 92 /* Initialize signal names. */ 93 for (i = 0; i < NSIG; i++) 94 sys_siglist[i] = undoc; 95 96 /* Initialize signal names. */ 97#if defined (SIGHUP) 98 init_sig (SIGHUP, "HUP", _("Hangup")); 99#endif 100#if defined (SIGINT) 101 init_sig (SIGINT, "INT", _("Interrupt")); 102#endif 103#if defined (SIGQUIT) 104 init_sig (SIGQUIT, "QUIT", _("Quit")); 105#endif 106#if defined (SIGILL) 107 init_sig (SIGILL, "ILL", _("Illegal Instruction")); 108#endif 109#if defined (SIGTRAP) 110 init_sig (SIGTRAP, "TRAP", _("Trace/breakpoint trap")); 111#endif 112 /* If SIGIOT == SIGABRT, we want to print it as SIGABRT because 113 SIGABRT is in ANSI and POSIX.1 and SIGIOT isn't. */ 114#if defined (SIGABRT) 115 init_sig (SIGABRT, "ABRT", _("Aborted")); 116#endif 117#if defined (SIGIOT) 118 init_sig (SIGIOT, "IOT", _("IOT trap")); 119#endif 120#if defined (SIGEMT) 121 init_sig (SIGEMT, "EMT", _("EMT trap")); 122#endif 123#if defined (SIGFPE) 124 init_sig (SIGFPE, "FPE", _("Floating point exception")); 125#endif 126#if defined (SIGKILL) 127 init_sig (SIGKILL, "KILL", _("Killed")); 128#endif 129#if defined (SIGBUS) 130 init_sig (SIGBUS, "BUS", _("Bus error")); 131#endif 132#if defined (SIGSEGV) 133 init_sig (SIGSEGV, "SEGV", _("Segmentation fault")); 134#endif 135#if defined (SIGSYS) 136 init_sig (SIGSYS, "SYS", _("Bad system call")); 137#endif 138#if defined (SIGPIPE) 139 init_sig (SIGPIPE, "PIPE", _("Broken pipe")); 140#endif 141#if defined (SIGALRM) 142 init_sig (SIGALRM, "ALRM", _("Alarm clock")); 143#endif 144#if defined (SIGTERM) 145 init_sig (SIGTERM, "TERM", _("Terminated")); 146#endif 147#if defined (SIGUSR1) 148 init_sig (SIGUSR1, "USR1", _("User defined signal 1")); 149#endif 150#if defined (SIGUSR2) 151 init_sig (SIGUSR2, "USR2", _("User defined signal 2")); 152#endif 153 /* If SIGCLD == SIGCHLD, we want to print it as SIGCHLD because that 154 is what is in POSIX.1. */ 155#if defined (SIGCHLD) 156 init_sig (SIGCHLD, "CHLD", _("Child exited")); 157#endif 158#if defined (SIGCLD) 159 init_sig (SIGCLD, "CLD", _("Child exited")); 160#endif 161#if defined (SIGPWR) 162 init_sig (SIGPWR, "PWR", _("Power failure")); 163#endif 164#if defined (SIGTSTP) 165 init_sig (SIGTSTP, "TSTP", _("Stopped")); 166#endif 167#if defined (SIGTTIN) 168 init_sig (SIGTTIN, "TTIN", _("Stopped (tty input)")); 169#endif 170#if defined (SIGTTOU) 171 init_sig (SIGTTOU, "TTOU", _("Stopped (tty output)")); 172#endif 173#if defined (SIGSTOP) 174 init_sig (SIGSTOP, "STOP", _("Stopped (signal)")); 175#endif 176#if defined (SIGXCPU) 177 init_sig (SIGXCPU, "XCPU", _("CPU time limit exceeded")); 178#endif 179#if defined (SIGXFSZ) 180 init_sig (SIGXFSZ, "XFSZ", _("File size limit exceeded")); 181#endif 182#if defined (SIGVTALRM) 183 init_sig (SIGVTALRM, "VTALRM", _("Virtual timer expired")); 184#endif 185#if defined (SIGPROF) 186 init_sig (SIGPROF, "PROF", _("Profiling timer expired")); 187#endif 188#if defined (SIGWINCH) 189 /* "Window size changed" might be more accurate, but even if that 190 is all that it means now, perhaps in the future it will be 191 extended to cover other kinds of window changes. */ 192 init_sig (SIGWINCH, "WINCH", _("Window changed")); 193#endif 194#if defined (SIGCONT) 195 init_sig (SIGCONT, "CONT", _("Continued")); 196#endif 197#if defined (SIGURG) 198 init_sig (SIGURG, "URG", _("Urgent I/O condition")); 199#endif 200#if defined (SIGIO) 201 /* "I/O pending" has also been suggested. A disadvantage is 202 that signal only happens when the process has 203 asked for it, not everytime I/O is pending. Another disadvantage 204 is the confusion from giving it a different name than under Unix. */ 205 init_sig (SIGIO, "IO", _("I/O possible")); 206#endif 207#if defined (SIGWIND) 208 init_sig (SIGWIND, "WIND", _("SIGWIND")); 209#endif 210#if defined (SIGPHONE) 211 init_sig (SIGPHONE, "PHONE", _("SIGPHONE")); 212#endif 213#if defined (SIGPOLL) 214 init_sig (SIGPOLL, "POLL", _("I/O possible")); 215#endif 216#if defined (SIGLOST) 217 init_sig (SIGLOST, "LOST", _("Resource lost")); 218#endif 219#if defined (SIGDANGER) 220 init_sig (SIGDANGER, "DANGER", _("Danger signal")); 221#endif 222#if defined (SIGINFO) 223 init_sig (SIGINFO, "INFO", _("Information request")); 224#endif 225#if defined (SIGNOFP) 226 init_sig (SIGNOFP, "NOFP", _("Floating point co-processor not available")); 227#endif 228 229 return 1; 230} 231 232#endif /* SYS_SIGLIST_DECLARED */ 233 234 235char * 236strsignal (signal) 237 int signal; 238{ 239 static char buf[] = "Signal 12345678901234567890"; 240 241#if !defined(SYS_SIGLIST_DECLARED) 242 static char sig_initted = 0; 243 244 if (!sig_initted) 245 sig_initted = signame_init (); 246#endif 247 248 if (signal > 0 || signal < NSIG) 249 return (char *) sys_siglist[signal]; 250 251 sprintf (buf, "Signal %d", signal); 252 return buf; 253} 254 255#endif /* HAVE_STRSIGNAL */ 256