1 /* Target signal translation functions for GDB.
2 Copyright (C) 1990-2003, 2006-2012 Free Software Foundation, Inc.
3 Contributed by Cygnus Support.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
24 #include "gdb_string.h"
31 #include "gdb_signals.h"
35 /* Always use __SIGRTMIN if it's available. SIGRTMIN is the lowest
36 _available_ realtime signal, not the lowest supported; glibc takes
37 several for its own use. */
40 # if defined(__SIGRTMIN)
41 # define REALTIME_LO __SIGRTMIN
42 # define REALTIME_HI (__SIGRTMAX + 1)
43 # elif defined(SIGRTMIN)
44 # define REALTIME_LO SIGRTMIN
45 # define REALTIME_HI (SIGRTMAX + 1)
49 /* This table must match in order and size the signals in enum
57 #define SET(symbol, constant, name, string) { name, string },
58 #include "gdb/signals.def"
63 /* Return the string for a signal. */
65 gdb_signal_to_string (enum gdb_signal sig)
67 if ((int) sig >= TARGET_SIGNAL_FIRST && (int) sig <= TARGET_SIGNAL_LAST)
68 return signals[sig].string;
70 return signals[TARGET_SIGNAL_UNKNOWN].string;
73 /* Return the name for a signal. */
75 gdb_signal_to_name (enum gdb_signal sig)
77 if ((int) sig >= TARGET_SIGNAL_FIRST && (int) sig <= TARGET_SIGNAL_LAST
78 && signals[sig].name != NULL)
79 return signals[sig].name;
81 /* I think the code which prints this will always print it along
82 with the string, so no need to be verbose (very old comment). */
86 /* Given a name, return its signal. */
88 gdb_signal_from_name (const char *name)
92 /* It's possible we also should allow "SIGCLD" as well as "SIGCHLD"
93 for TARGET_SIGNAL_SIGCHLD. SIGIOT, on the other hand, is more
94 questionable; seems like by now people should call it SIGABRT
97 /* This ugly cast brought to you by the native VAX compiler. */
98 for (sig = TARGET_SIGNAL_HUP;
99 sig < TARGET_SIGNAL_LAST;
100 sig = (enum gdb_signal) ((int) sig + 1))
101 if (signals[sig].name != NULL
102 && strcmp (name, signals[sig].name) == 0)
104 return TARGET_SIGNAL_UNKNOWN;
107 /* The following functions are to help certain targets deal
108 with the signal/waitstatus stuff. They could just as well be in
109 a file called native-utils.c or unixwaitstatus-utils.c or whatever. */
111 /* Convert host signal to our signals. */
113 gdb_signal_from_host (int hostsig)
115 /* A switch statement would make sense but would require special kludges
116 to deal with the cases where more than one signal has the same number. */
119 return TARGET_SIGNAL_0;
122 if (hostsig == SIGHUP)
123 return TARGET_SIGNAL_HUP;
126 if (hostsig == SIGINT)
127 return TARGET_SIGNAL_INT;
129 #if defined (SIGQUIT)
130 if (hostsig == SIGQUIT)
131 return TARGET_SIGNAL_QUIT;
134 if (hostsig == SIGILL)
135 return TARGET_SIGNAL_ILL;
137 #if defined (SIGTRAP)
138 if (hostsig == SIGTRAP)
139 return TARGET_SIGNAL_TRAP;
141 #if defined (SIGABRT)
142 if (hostsig == SIGABRT)
143 return TARGET_SIGNAL_ABRT;
146 if (hostsig == SIGEMT)
147 return TARGET_SIGNAL_EMT;
150 if (hostsig == SIGFPE)
151 return TARGET_SIGNAL_FPE;
153 #if defined (SIGKILL)
154 if (hostsig == SIGKILL)
155 return TARGET_SIGNAL_KILL;
158 if (hostsig == SIGBUS)
159 return TARGET_SIGNAL_BUS;
161 #if defined (SIGSEGV)
162 if (hostsig == SIGSEGV)
163 return TARGET_SIGNAL_SEGV;
166 if (hostsig == SIGSYS)
167 return TARGET_SIGNAL_SYS;
169 #if defined (SIGPIPE)
170 if (hostsig == SIGPIPE)
171 return TARGET_SIGNAL_PIPE;
173 #if defined (SIGALRM)
174 if (hostsig == SIGALRM)
175 return TARGET_SIGNAL_ALRM;
177 #if defined (SIGTERM)
178 if (hostsig == SIGTERM)
179 return TARGET_SIGNAL_TERM;
181 #if defined (SIGUSR1)
182 if (hostsig == SIGUSR1)
183 return TARGET_SIGNAL_USR1;
185 #if defined (SIGUSR2)
186 if (hostsig == SIGUSR2)
187 return TARGET_SIGNAL_USR2;
190 if (hostsig == SIGCLD)
191 return TARGET_SIGNAL_CHLD;
193 #if defined (SIGCHLD)
194 if (hostsig == SIGCHLD)
195 return TARGET_SIGNAL_CHLD;
198 if (hostsig == SIGPWR)
199 return TARGET_SIGNAL_PWR;
201 #if defined (SIGWINCH)
202 if (hostsig == SIGWINCH)
203 return TARGET_SIGNAL_WINCH;
206 if (hostsig == SIGURG)
207 return TARGET_SIGNAL_URG;
210 if (hostsig == SIGIO)
211 return TARGET_SIGNAL_IO;
213 #if defined (SIGPOLL)
214 if (hostsig == SIGPOLL)
215 return TARGET_SIGNAL_POLL;
217 #if defined (SIGSTOP)
218 if (hostsig == SIGSTOP)
219 return TARGET_SIGNAL_STOP;
221 #if defined (SIGTSTP)
222 if (hostsig == SIGTSTP)
223 return TARGET_SIGNAL_TSTP;
225 #if defined (SIGCONT)
226 if (hostsig == SIGCONT)
227 return TARGET_SIGNAL_CONT;
229 #if defined (SIGTTIN)
230 if (hostsig == SIGTTIN)
231 return TARGET_SIGNAL_TTIN;
233 #if defined (SIGTTOU)
234 if (hostsig == SIGTTOU)
235 return TARGET_SIGNAL_TTOU;
237 #if defined (SIGVTALRM)
238 if (hostsig == SIGVTALRM)
239 return TARGET_SIGNAL_VTALRM;
241 #if defined (SIGPROF)
242 if (hostsig == SIGPROF)
243 return TARGET_SIGNAL_PROF;
245 #if defined (SIGXCPU)
246 if (hostsig == SIGXCPU)
247 return TARGET_SIGNAL_XCPU;
249 #if defined (SIGXFSZ)
250 if (hostsig == SIGXFSZ)
251 return TARGET_SIGNAL_XFSZ;
253 #if defined (SIGWIND)
254 if (hostsig == SIGWIND)
255 return TARGET_SIGNAL_WIND;
257 #if defined (SIGPHONE)
258 if (hostsig == SIGPHONE)
259 return TARGET_SIGNAL_PHONE;
261 #if defined (SIGLOST)
262 if (hostsig == SIGLOST)
263 return TARGET_SIGNAL_LOST;
265 #if defined (SIGWAITING)
266 if (hostsig == SIGWAITING)
267 return TARGET_SIGNAL_WAITING;
269 #if defined (SIGCANCEL)
270 if (hostsig == SIGCANCEL)
271 return TARGET_SIGNAL_CANCEL;
274 if (hostsig == SIGLWP)
275 return TARGET_SIGNAL_LWP;
277 #if defined (SIGDANGER)
278 if (hostsig == SIGDANGER)
279 return TARGET_SIGNAL_DANGER;
281 #if defined (SIGGRANT)
282 if (hostsig == SIGGRANT)
283 return TARGET_SIGNAL_GRANT;
285 #if defined (SIGRETRACT)
286 if (hostsig == SIGRETRACT)
287 return TARGET_SIGNAL_RETRACT;
290 if (hostsig == SIGMSG)
291 return TARGET_SIGNAL_MSG;
293 #if defined (SIGSOUND)
294 if (hostsig == SIGSOUND)
295 return TARGET_SIGNAL_SOUND;
298 if (hostsig == SIGSAK)
299 return TARGET_SIGNAL_SAK;
301 #if defined (SIGPRIO)
302 if (hostsig == SIGPRIO)
303 return TARGET_SIGNAL_PRIO;
306 /* Mach exceptions. Assumes that the values for EXC_ are positive! */
307 #if defined (EXC_BAD_ACCESS) && defined (_NSIG)
308 if (hostsig == _NSIG + EXC_BAD_ACCESS)
309 return TARGET_EXC_BAD_ACCESS;
311 #if defined (EXC_BAD_INSTRUCTION) && defined (_NSIG)
312 if (hostsig == _NSIG + EXC_BAD_INSTRUCTION)
313 return TARGET_EXC_BAD_INSTRUCTION;
315 #if defined (EXC_ARITHMETIC) && defined (_NSIG)
316 if (hostsig == _NSIG + EXC_ARITHMETIC)
317 return TARGET_EXC_ARITHMETIC;
319 #if defined (EXC_EMULATION) && defined (_NSIG)
320 if (hostsig == _NSIG + EXC_EMULATION)
321 return TARGET_EXC_EMULATION;
323 #if defined (EXC_SOFTWARE) && defined (_NSIG)
324 if (hostsig == _NSIG + EXC_SOFTWARE)
325 return TARGET_EXC_SOFTWARE;
327 #if defined (EXC_BREAKPOINT) && defined (_NSIG)
328 if (hostsig == _NSIG + EXC_BREAKPOINT)
329 return TARGET_EXC_BREAKPOINT;
332 #if defined (SIGINFO)
333 if (hostsig == SIGINFO)
334 return TARGET_SIGNAL_INFO;
337 #if defined (REALTIME_LO)
338 if (hostsig >= REALTIME_LO && hostsig < REALTIME_HI)
340 /* This block of TARGET_SIGNAL_REALTIME value is in order. */
341 if (33 <= hostsig && hostsig <= 63)
342 return (enum gdb_signal)
343 (hostsig - 33 + (int) TARGET_SIGNAL_REALTIME_33);
344 else if (hostsig == 32)
345 return TARGET_SIGNAL_REALTIME_32;
346 else if (64 <= hostsig && hostsig <= 127)
347 return (enum gdb_signal)
348 (hostsig - 64 + (int) TARGET_SIGNAL_REALTIME_64);
350 error (_("GDB bug: target.c (gdb_signal_from_host): "
351 "unrecognized real-time signal"));
355 return TARGET_SIGNAL_UNKNOWN;
358 /* Convert a OURSIG (an enum gdb_signal) to the form used by the
359 target operating system (refered to as the ``host'') or zero if the
360 equivalent host signal is not available. Set/clear OURSIG_OK
364 do_gdb_signal_to_host (enum gdb_signal oursig,
368 /* Silence the 'not used' warning, for targets that
369 do not support signals. */
375 case TARGET_SIGNAL_0:
379 case TARGET_SIGNAL_HUP:
383 case TARGET_SIGNAL_INT:
386 #if defined (SIGQUIT)
387 case TARGET_SIGNAL_QUIT:
391 case TARGET_SIGNAL_ILL:
394 #if defined (SIGTRAP)
395 case TARGET_SIGNAL_TRAP:
398 #if defined (SIGABRT)
399 case TARGET_SIGNAL_ABRT:
403 case TARGET_SIGNAL_EMT:
407 case TARGET_SIGNAL_FPE:
410 #if defined (SIGKILL)
411 case TARGET_SIGNAL_KILL:
415 case TARGET_SIGNAL_BUS:
418 #if defined (SIGSEGV)
419 case TARGET_SIGNAL_SEGV:
423 case TARGET_SIGNAL_SYS:
426 #if defined (SIGPIPE)
427 case TARGET_SIGNAL_PIPE:
430 #if defined (SIGALRM)
431 case TARGET_SIGNAL_ALRM:
434 #if defined (SIGTERM)
435 case TARGET_SIGNAL_TERM:
438 #if defined (SIGUSR1)
439 case TARGET_SIGNAL_USR1:
442 #if defined (SIGUSR2)
443 case TARGET_SIGNAL_USR2:
446 #if defined (SIGCHLD) || defined (SIGCLD)
447 case TARGET_SIGNAL_CHLD:
448 #if defined (SIGCHLD)
453 #endif /* SIGCLD or SIGCHLD */
455 case TARGET_SIGNAL_PWR:
458 #if defined (SIGWINCH)
459 case TARGET_SIGNAL_WINCH:
463 case TARGET_SIGNAL_URG:
467 case TARGET_SIGNAL_IO:
470 #if defined (SIGPOLL)
471 case TARGET_SIGNAL_POLL:
474 #if defined (SIGSTOP)
475 case TARGET_SIGNAL_STOP:
478 #if defined (SIGTSTP)
479 case TARGET_SIGNAL_TSTP:
482 #if defined (SIGCONT)
483 case TARGET_SIGNAL_CONT:
486 #if defined (SIGTTIN)
487 case TARGET_SIGNAL_TTIN:
490 #if defined (SIGTTOU)
491 case TARGET_SIGNAL_TTOU:
494 #if defined (SIGVTALRM)
495 case TARGET_SIGNAL_VTALRM:
498 #if defined (SIGPROF)
499 case TARGET_SIGNAL_PROF:
502 #if defined (SIGXCPU)
503 case TARGET_SIGNAL_XCPU:
506 #if defined (SIGXFSZ)
507 case TARGET_SIGNAL_XFSZ:
510 #if defined (SIGWIND)
511 case TARGET_SIGNAL_WIND:
514 #if defined (SIGPHONE)
515 case TARGET_SIGNAL_PHONE:
518 #if defined (SIGLOST)
519 case TARGET_SIGNAL_LOST:
522 #if defined (SIGWAITING)
523 case TARGET_SIGNAL_WAITING:
526 #if defined (SIGCANCEL)
527 case TARGET_SIGNAL_CANCEL:
531 case TARGET_SIGNAL_LWP:
534 #if defined (SIGDANGER)
535 case TARGET_SIGNAL_DANGER:
538 #if defined (SIGGRANT)
539 case TARGET_SIGNAL_GRANT:
542 #if defined (SIGRETRACT)
543 case TARGET_SIGNAL_RETRACT:
547 case TARGET_SIGNAL_MSG:
550 #if defined (SIGSOUND)
551 case TARGET_SIGNAL_SOUND:
555 case TARGET_SIGNAL_SAK:
558 #if defined (SIGPRIO)
559 case TARGET_SIGNAL_PRIO:
563 /* Mach exceptions. Assumes that the values for EXC_ are positive! */
564 #if defined (EXC_BAD_ACCESS) && defined (_NSIG)
565 case TARGET_EXC_BAD_ACCESS:
566 return _NSIG + EXC_BAD_ACCESS;
568 #if defined (EXC_BAD_INSTRUCTION) && defined (_NSIG)
569 case TARGET_EXC_BAD_INSTRUCTION:
570 return _NSIG + EXC_BAD_INSTRUCTION;
572 #if defined (EXC_ARITHMETIC) && defined (_NSIG)
573 case TARGET_EXC_ARITHMETIC:
574 return _NSIG + EXC_ARITHMETIC;
576 #if defined (EXC_EMULATION) && defined (_NSIG)
577 case TARGET_EXC_EMULATION:
578 return _NSIG + EXC_EMULATION;
580 #if defined (EXC_SOFTWARE) && defined (_NSIG)
581 case TARGET_EXC_SOFTWARE:
582 return _NSIG + EXC_SOFTWARE;
584 #if defined (EXC_BREAKPOINT) && defined (_NSIG)
585 case TARGET_EXC_BREAKPOINT:
586 return _NSIG + EXC_BREAKPOINT;
589 #if defined (SIGINFO)
590 case TARGET_SIGNAL_INFO:
595 #if defined (REALTIME_LO)
598 if (oursig >= TARGET_SIGNAL_REALTIME_33
599 && oursig <= TARGET_SIGNAL_REALTIME_63)
601 /* This block of signals is continuous, and
602 TARGET_SIGNAL_REALTIME_33 is 33 by definition. */
603 retsig = (int) oursig - (int) TARGET_SIGNAL_REALTIME_33 + 33;
605 else if (oursig == TARGET_SIGNAL_REALTIME_32)
607 /* TARGET_SIGNAL_REALTIME_32 isn't contiguous with
608 TARGET_SIGNAL_REALTIME_33. It is 32 by definition. */
611 else if (oursig >= TARGET_SIGNAL_REALTIME_64
612 && oursig <= TARGET_SIGNAL_REALTIME_127)
614 /* This block of signals is continuous, and
615 TARGET_SIGNAL_REALTIME_64 is 64 by definition. */
616 retsig = (int) oursig - (int) TARGET_SIGNAL_REALTIME_64 + 64;
619 if (retsig >= REALTIME_LO && retsig < REALTIME_HI)
629 gdb_signal_to_host_p (enum gdb_signal oursig)
632 do_gdb_signal_to_host (oursig, &oursig_ok);
637 gdb_signal_to_host (enum gdb_signal oursig)
640 int targ_signo = do_gdb_signal_to_host (oursig, &oursig_ok);
643 /* The user might be trying to do "signal SIGSAK" where this system
644 doesn't have SIGSAK. */
645 warning (_("Signal %s does not exist on this system."),
646 gdb_signal_to_name (oursig));