Bump the version to 3.82.90.
[make.git] / signame.c
blob6f3383d28fc8ccaefa19c5470e6c89da37db9e73
1 /* Convert between signal names and numbers.
2 Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
3 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software
4 Foundation, Inc.
5 This file is part of GNU Make.
7 GNU Make is free software; you can redistribute it and/or modify it under the
8 terms of the GNU General Public License as published by the Free Software
9 Foundation; either version 3 of the License, or (at your option) any later
10 version.
12 GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
14 A PARTICULAR PURPOSE. See the GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License along with
17 this program. If not, see <http://www.gnu.org/licenses/>. */
19 #include "make.h"
21 /* If the system provides strsignal, we don't need it. */
23 #if !HAVE_STRSIGNAL
25 /* If the system provides sys_siglist, we'll use that.
26 Otherwise create our own.
29 #if !HAVE_DECL_SYS_SIGLIST
31 /* Some systems do not define NSIG in <signal.h>. */
32 #ifndef NSIG
33 #ifdef _NSIG
34 #define NSIG _NSIG
35 #else
36 #define NSIG 32
37 #endif
38 #endif
40 /* There is too much variation in Sys V signal numbers and names, so
41 we must initialize them at runtime. */
43 static const char *undoc;
45 static const char *sys_siglist[NSIG];
47 /* Table of abbreviations for signals. Note: A given number can
48 appear more than once with different abbreviations. */
49 #define SIG_TABLE_SIZE (NSIG*2)
51 typedef struct
53 int number;
54 const char *abbrev;
55 } num_abbrev;
57 static num_abbrev sig_table[SIG_TABLE_SIZE];
59 /* Number of elements of sig_table used. */
60 static int sig_table_nelts = 0;
62 /* Enter signal number NUMBER into the tables with ABBREV and NAME. */
64 static void
65 init_sig (int number, const char *abbrev, const char *name)
67 /* If this value is ever greater than NSIG it seems like it'd be a bug in
68 the system headers, but... better safe than sorry. We know, for
69 example, that this isn't always true on VMS. */
71 if (number >= 0 && number < NSIG)
72 sys_siglist[number] = name;
74 if (sig_table_nelts < SIG_TABLE_SIZE)
76 sig_table[sig_table_nelts].number = number;
77 sig_table[sig_table_nelts++].abbrev = abbrev;
81 static int
82 signame_init (void)
84 int i;
86 undoc = xstrdup (_("unknown signal"));
88 /* Initialize signal names. */
89 for (i = 0; i < NSIG; i++)
90 sys_siglist[i] = undoc;
92 /* Initialize signal names. */
93 #if defined (SIGHUP)
94 init_sig (SIGHUP, "HUP", _("Hangup"));
95 #endif
96 #if defined (SIGINT)
97 init_sig (SIGINT, "INT", _("Interrupt"));
98 #endif
99 #if defined (SIGQUIT)
100 init_sig (SIGQUIT, "QUIT", _("Quit"));
101 #endif
102 #if defined (SIGILL)
103 init_sig (SIGILL, "ILL", _("Illegal Instruction"));
104 #endif
105 #if defined (SIGTRAP)
106 init_sig (SIGTRAP, "TRAP", _("Trace/breakpoint trap"));
107 #endif
108 /* If SIGIOT == SIGABRT, we want to print it as SIGABRT because
109 SIGABRT is in ANSI and POSIX.1 and SIGIOT isn't. */
110 #if defined (SIGABRT)
111 init_sig (SIGABRT, "ABRT", _("Aborted"));
112 #endif
113 #if defined (SIGIOT)
114 init_sig (SIGIOT, "IOT", _("IOT trap"));
115 #endif
116 #if defined (SIGEMT)
117 init_sig (SIGEMT, "EMT", _("EMT trap"));
118 #endif
119 #if defined (SIGFPE)
120 init_sig (SIGFPE, "FPE", _("Floating point exception"));
121 #endif
122 #if defined (SIGKILL)
123 init_sig (SIGKILL, "KILL", _("Killed"));
124 #endif
125 #if defined (SIGBUS)
126 init_sig (SIGBUS, "BUS", _("Bus error"));
127 #endif
128 #if defined (SIGSEGV)
129 init_sig (SIGSEGV, "SEGV", _("Segmentation fault"));
130 #endif
131 #if defined (SIGSYS)
132 init_sig (SIGSYS, "SYS", _("Bad system call"));
133 #endif
134 #if defined (SIGPIPE)
135 init_sig (SIGPIPE, "PIPE", _("Broken pipe"));
136 #endif
137 #if defined (SIGALRM)
138 init_sig (SIGALRM, "ALRM", _("Alarm clock"));
139 #endif
140 #if defined (SIGTERM)
141 init_sig (SIGTERM, "TERM", _("Terminated"));
142 #endif
143 #if defined (SIGUSR1)
144 init_sig (SIGUSR1, "USR1", _("User defined signal 1"));
145 #endif
146 #if defined (SIGUSR2)
147 init_sig (SIGUSR2, "USR2", _("User defined signal 2"));
148 #endif
149 /* If SIGCLD == SIGCHLD, we want to print it as SIGCHLD because that
150 is what is in POSIX.1. */
151 #if defined (SIGCHLD)
152 init_sig (SIGCHLD, "CHLD", _("Child exited"));
153 #endif
154 #if defined (SIGCLD)
155 init_sig (SIGCLD, "CLD", _("Child exited"));
156 #endif
157 #if defined (SIGPWR)
158 init_sig (SIGPWR, "PWR", _("Power failure"));
159 #endif
160 #if defined (SIGTSTP)
161 init_sig (SIGTSTP, "TSTP", _("Stopped"));
162 #endif
163 #if defined (SIGTTIN)
164 init_sig (SIGTTIN, "TTIN", _("Stopped (tty input)"));
165 #endif
166 #if defined (SIGTTOU)
167 init_sig (SIGTTOU, "TTOU", _("Stopped (tty output)"));
168 #endif
169 #if defined (SIGSTOP)
170 init_sig (SIGSTOP, "STOP", _("Stopped (signal)"));
171 #endif
172 #if defined (SIGXCPU)
173 init_sig (SIGXCPU, "XCPU", _("CPU time limit exceeded"));
174 #endif
175 #if defined (SIGXFSZ)
176 init_sig (SIGXFSZ, "XFSZ", _("File size limit exceeded"));
177 #endif
178 #if defined (SIGVTALRM)
179 init_sig (SIGVTALRM, "VTALRM", _("Virtual timer expired"));
180 #endif
181 #if defined (SIGPROF)
182 init_sig (SIGPROF, "PROF", _("Profiling timer expired"));
183 #endif
184 #if defined (SIGWINCH)
185 /* "Window size changed" might be more accurate, but even if that
186 is all that it means now, perhaps in the future it will be
187 extended to cover other kinds of window changes. */
188 init_sig (SIGWINCH, "WINCH", _("Window changed"));
189 #endif
190 #if defined (SIGCONT)
191 init_sig (SIGCONT, "CONT", _("Continued"));
192 #endif
193 #if defined (SIGURG)
194 init_sig (SIGURG, "URG", _("Urgent I/O condition"));
195 #endif
196 #if defined (SIGIO)
197 /* "I/O pending" has also been suggested. A disadvantage is
198 that signal only happens when the process has
199 asked for it, not everytime I/O is pending. Another disadvantage
200 is the confusion from giving it a different name than under Unix. */
201 init_sig (SIGIO, "IO", _("I/O possible"));
202 #endif
203 #if defined (SIGWIND)
204 init_sig (SIGWIND, "WIND", _("SIGWIND"));
205 #endif
206 #if defined (SIGPHONE)
207 init_sig (SIGPHONE, "PHONE", _("SIGPHONE"));
208 #endif
209 #if defined (SIGPOLL)
210 init_sig (SIGPOLL, "POLL", _("I/O possible"));
211 #endif
212 #if defined (SIGLOST)
213 init_sig (SIGLOST, "LOST", _("Resource lost"));
214 #endif
215 #if defined (SIGDANGER)
216 init_sig (SIGDANGER, "DANGER", _("Danger signal"));
217 #endif
218 #if defined (SIGINFO)
219 init_sig (SIGINFO, "INFO", _("Information request"));
220 #endif
221 #if defined (SIGNOFP)
222 init_sig (SIGNOFP, "NOFP", _("Floating point co-processor not available"));
223 #endif
225 return 1;
228 #endif /* HAVE_DECL_SYS_SIGLIST */
231 char *
232 strsignal (int sig)
234 static char buf[] = "Signal 12345678901234567890";
236 #if ! HAVE_DECL_SYS_SIGLIST
237 # if HAVE_DECL__SYS_SIGLIST
238 # define sys_siglist _sys_siglist
239 # elif HAVE_DECL___SYS_SIGLIST
240 # define sys_siglist __sys_siglist
241 # else
242 static char sig_initted = 0;
244 if (!sig_initted)
245 sig_initted = signame_init ();
246 # endif
247 #endif
249 if (sig > 0 || sig < NSIG)
250 return (char *) sys_siglist[sig];
252 sprintf (buf, "Signal %d", sig);
253 return buf;
256 #endif /* HAVE_STRSIGNAL */