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