1 /* Target signal translation functions for GDB.
2 Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
3 2000, 2001, 2002, 2003, 2006, 2007, 2008, 2009, 2010, 2011
4 Free Software Foundation, Inc.
5 Contributed by Cygnus Support.
7 This file is part of GDB.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>. */
26 #include "gdb_string.h"
33 #include "gdb_signals.h"
37 /* Always use __SIGRTMIN if it's available. SIGRTMIN is the lowest
38 _available_ realtime signal, not the lowest supported; glibc takes
39 several for its own use. */
42 # if defined(__SIGRTMIN)
43 # define REALTIME_LO __SIGRTMIN
44 # define REALTIME_HI (__SIGRTMAX + 1)
45 # elif defined(SIGRTMIN)
46 # define REALTIME_LO SIGRTMIN
47 # define REALTIME_HI (SIGRTMAX + 1)
51 /* This table must match in order and size the signals in enum
59 #define SET(symbol, constant, name, string) { name, string },
60 #include "gdb/signals.def"
65 /* Return the string for a signal. */
67 target_signal_to_string (enum target_signal sig
)
69 if ((int) sig
>= TARGET_SIGNAL_FIRST
&& (int) sig
<= TARGET_SIGNAL_LAST
)
70 return signals
[sig
].string
;
72 return signals
[TARGET_SIGNAL_UNKNOWN
].string
;
75 /* Return the name for a signal. */
77 target_signal_to_name (enum target_signal sig
)
79 if ((int) sig
>= TARGET_SIGNAL_FIRST
&& (int) sig
<= TARGET_SIGNAL_LAST
80 && signals
[sig
].name
!= NULL
)
81 return signals
[sig
].name
;
83 /* I think the code which prints this will always print it along
84 with the string, so no need to be verbose (very old comment). */
88 /* Given a name, return its signal. */
90 target_signal_from_name (const char *name
)
92 enum target_signal sig
;
94 /* It's possible we also should allow "SIGCLD" as well as "SIGCHLD"
95 for TARGET_SIGNAL_SIGCHLD. SIGIOT, on the other hand, is more
96 questionable; seems like by now people should call it SIGABRT
99 /* This ugly cast brought to you by the native VAX compiler. */
100 for (sig
= TARGET_SIGNAL_HUP
;
101 sig
< TARGET_SIGNAL_LAST
;
102 sig
= (enum target_signal
) ((int) sig
+ 1))
103 if (signals
[sig
].name
!= NULL
104 && strcmp (name
, signals
[sig
].name
) == 0)
106 return TARGET_SIGNAL_UNKNOWN
;
109 /* The following functions are to help certain targets deal
110 with the signal/waitstatus stuff. They could just as well be in
111 a file called native-utils.c or unixwaitstatus-utils.c or whatever. */
113 /* Convert host signal to our signals. */
115 target_signal_from_host (int hostsig
)
117 /* A switch statement would make sense but would require special kludges
118 to deal with the cases where more than one signal has the same number. */
121 return TARGET_SIGNAL_0
;
124 if (hostsig
== SIGHUP
)
125 return TARGET_SIGNAL_HUP
;
128 if (hostsig
== SIGINT
)
129 return TARGET_SIGNAL_INT
;
131 #if defined (SIGQUIT)
132 if (hostsig
== SIGQUIT
)
133 return TARGET_SIGNAL_QUIT
;
136 if (hostsig
== SIGILL
)
137 return TARGET_SIGNAL_ILL
;
139 #if defined (SIGTRAP)
140 if (hostsig
== SIGTRAP
)
141 return TARGET_SIGNAL_TRAP
;
143 #if defined (SIGABRT)
144 if (hostsig
== SIGABRT
)
145 return TARGET_SIGNAL_ABRT
;
148 if (hostsig
== SIGEMT
)
149 return TARGET_SIGNAL_EMT
;
152 if (hostsig
== SIGFPE
)
153 return TARGET_SIGNAL_FPE
;
155 #if defined (SIGKILL)
156 if (hostsig
== SIGKILL
)
157 return TARGET_SIGNAL_KILL
;
160 if (hostsig
== SIGBUS
)
161 return TARGET_SIGNAL_BUS
;
163 #if defined (SIGSEGV)
164 if (hostsig
== SIGSEGV
)
165 return TARGET_SIGNAL_SEGV
;
168 if (hostsig
== SIGSYS
)
169 return TARGET_SIGNAL_SYS
;
171 #if defined (SIGPIPE)
172 if (hostsig
== SIGPIPE
)
173 return TARGET_SIGNAL_PIPE
;
175 #if defined (SIGALRM)
176 if (hostsig
== SIGALRM
)
177 return TARGET_SIGNAL_ALRM
;
179 #if defined (SIGTERM)
180 if (hostsig
== SIGTERM
)
181 return TARGET_SIGNAL_TERM
;
183 #if defined (SIGUSR1)
184 if (hostsig
== SIGUSR1
)
185 return TARGET_SIGNAL_USR1
;
187 #if defined (SIGUSR2)
188 if (hostsig
== SIGUSR2
)
189 return TARGET_SIGNAL_USR2
;
192 if (hostsig
== SIGCLD
)
193 return TARGET_SIGNAL_CHLD
;
195 #if defined (SIGCHLD)
196 if (hostsig
== SIGCHLD
)
197 return TARGET_SIGNAL_CHLD
;
200 if (hostsig
== SIGPWR
)
201 return TARGET_SIGNAL_PWR
;
203 #if defined (SIGWINCH)
204 if (hostsig
== SIGWINCH
)
205 return TARGET_SIGNAL_WINCH
;
208 if (hostsig
== SIGURG
)
209 return TARGET_SIGNAL_URG
;
212 if (hostsig
== SIGIO
)
213 return TARGET_SIGNAL_IO
;
215 #if defined (SIGPOLL)
216 if (hostsig
== SIGPOLL
)
217 return TARGET_SIGNAL_POLL
;
219 #if defined (SIGSTOP)
220 if (hostsig
== SIGSTOP
)
221 return TARGET_SIGNAL_STOP
;
223 #if defined (SIGTSTP)
224 if (hostsig
== SIGTSTP
)
225 return TARGET_SIGNAL_TSTP
;
227 #if defined (SIGCONT)
228 if (hostsig
== SIGCONT
)
229 return TARGET_SIGNAL_CONT
;
231 #if defined (SIGTTIN)
232 if (hostsig
== SIGTTIN
)
233 return TARGET_SIGNAL_TTIN
;
235 #if defined (SIGTTOU)
236 if (hostsig
== SIGTTOU
)
237 return TARGET_SIGNAL_TTOU
;
239 #if defined (SIGVTALRM)
240 if (hostsig
== SIGVTALRM
)
241 return TARGET_SIGNAL_VTALRM
;
243 #if defined (SIGPROF)
244 if (hostsig
== SIGPROF
)
245 return TARGET_SIGNAL_PROF
;
247 #if defined (SIGXCPU)
248 if (hostsig
== SIGXCPU
)
249 return TARGET_SIGNAL_XCPU
;
251 #if defined (SIGXFSZ)
252 if (hostsig
== SIGXFSZ
)
253 return TARGET_SIGNAL_XFSZ
;
255 #if defined (SIGWIND)
256 if (hostsig
== SIGWIND
)
257 return TARGET_SIGNAL_WIND
;
259 #if defined (SIGPHONE)
260 if (hostsig
== SIGPHONE
)
261 return TARGET_SIGNAL_PHONE
;
263 #if defined (SIGLOST)
264 if (hostsig
== SIGLOST
)
265 return TARGET_SIGNAL_LOST
;
267 #if defined (SIGWAITING)
268 if (hostsig
== SIGWAITING
)
269 return TARGET_SIGNAL_WAITING
;
271 #if defined (SIGCANCEL)
272 if (hostsig
== SIGCANCEL
)
273 return TARGET_SIGNAL_CANCEL
;
276 if (hostsig
== SIGLWP
)
277 return TARGET_SIGNAL_LWP
;
279 #if defined (SIGDANGER)
280 if (hostsig
== SIGDANGER
)
281 return TARGET_SIGNAL_DANGER
;
283 #if defined (SIGGRANT)
284 if (hostsig
== SIGGRANT
)
285 return TARGET_SIGNAL_GRANT
;
287 #if defined (SIGRETRACT)
288 if (hostsig
== SIGRETRACT
)
289 return TARGET_SIGNAL_RETRACT
;
292 if (hostsig
== SIGMSG
)
293 return TARGET_SIGNAL_MSG
;
295 #if defined (SIGSOUND)
296 if (hostsig
== SIGSOUND
)
297 return TARGET_SIGNAL_SOUND
;
300 if (hostsig
== SIGSAK
)
301 return TARGET_SIGNAL_SAK
;
303 #if defined (SIGPRIO)
304 if (hostsig
== SIGPRIO
)
305 return TARGET_SIGNAL_PRIO
;
308 /* Mach exceptions. Assumes that the values for EXC_ are positive! */
309 #if defined (EXC_BAD_ACCESS) && defined (_NSIG)
310 if (hostsig
== _NSIG
+ EXC_BAD_ACCESS
)
311 return TARGET_EXC_BAD_ACCESS
;
313 #if defined (EXC_BAD_INSTRUCTION) && defined (_NSIG)
314 if (hostsig
== _NSIG
+ EXC_BAD_INSTRUCTION
)
315 return TARGET_EXC_BAD_INSTRUCTION
;
317 #if defined (EXC_ARITHMETIC) && defined (_NSIG)
318 if (hostsig
== _NSIG
+ EXC_ARITHMETIC
)
319 return TARGET_EXC_ARITHMETIC
;
321 #if defined (EXC_EMULATION) && defined (_NSIG)
322 if (hostsig
== _NSIG
+ EXC_EMULATION
)
323 return TARGET_EXC_EMULATION
;
325 #if defined (EXC_SOFTWARE) && defined (_NSIG)
326 if (hostsig
== _NSIG
+ EXC_SOFTWARE
)
327 return TARGET_EXC_SOFTWARE
;
329 #if defined (EXC_BREAKPOINT) && defined (_NSIG)
330 if (hostsig
== _NSIG
+ EXC_BREAKPOINT
)
331 return TARGET_EXC_BREAKPOINT
;
334 #if defined (SIGINFO)
335 if (hostsig
== SIGINFO
)
336 return TARGET_SIGNAL_INFO
;
339 #if defined (REALTIME_LO)
340 if (hostsig
>= REALTIME_LO
&& hostsig
< REALTIME_HI
)
342 /* This block of TARGET_SIGNAL_REALTIME value is in order. */
343 if (33 <= hostsig
&& hostsig
<= 63)
344 return (enum target_signal
)
345 (hostsig
- 33 + (int) TARGET_SIGNAL_REALTIME_33
);
346 else if (hostsig
== 32)
347 return TARGET_SIGNAL_REALTIME_32
;
348 else if (64 <= hostsig
&& hostsig
<= 127)
349 return (enum target_signal
)
350 (hostsig
- 64 + (int) TARGET_SIGNAL_REALTIME_64
);
352 error (_("GDB bug: target.c (target_signal_from_host): "
353 "unrecognized real-time signal"));
357 return TARGET_SIGNAL_UNKNOWN
;
360 /* Convert a OURSIG (an enum target_signal) to the form used by the
361 target operating system (refered to as the ``host'') or zero if the
362 equivalent host signal is not available. Set/clear OURSIG_OK
366 do_target_signal_to_host (enum target_signal oursig
,
370 /* Silence the 'not used' warning, for targets that
371 do not support signals. */
377 case TARGET_SIGNAL_0
:
381 case TARGET_SIGNAL_HUP
:
385 case TARGET_SIGNAL_INT
:
388 #if defined (SIGQUIT)
389 case TARGET_SIGNAL_QUIT
:
393 case TARGET_SIGNAL_ILL
:
396 #if defined (SIGTRAP)
397 case TARGET_SIGNAL_TRAP
:
400 #if defined (SIGABRT)
401 case TARGET_SIGNAL_ABRT
:
405 case TARGET_SIGNAL_EMT
:
409 case TARGET_SIGNAL_FPE
:
412 #if defined (SIGKILL)
413 case TARGET_SIGNAL_KILL
:
417 case TARGET_SIGNAL_BUS
:
420 #if defined (SIGSEGV)
421 case TARGET_SIGNAL_SEGV
:
425 case TARGET_SIGNAL_SYS
:
428 #if defined (SIGPIPE)
429 case TARGET_SIGNAL_PIPE
:
432 #if defined (SIGALRM)
433 case TARGET_SIGNAL_ALRM
:
436 #if defined (SIGTERM)
437 case TARGET_SIGNAL_TERM
:
440 #if defined (SIGUSR1)
441 case TARGET_SIGNAL_USR1
:
444 #if defined (SIGUSR2)
445 case TARGET_SIGNAL_USR2
:
448 #if defined (SIGCHLD) || defined (SIGCLD)
449 case TARGET_SIGNAL_CHLD
:
450 #if defined (SIGCHLD)
455 #endif /* SIGCLD or SIGCHLD */
457 case TARGET_SIGNAL_PWR
:
460 #if defined (SIGWINCH)
461 case TARGET_SIGNAL_WINCH
:
465 case TARGET_SIGNAL_URG
:
469 case TARGET_SIGNAL_IO
:
472 #if defined (SIGPOLL)
473 case TARGET_SIGNAL_POLL
:
476 #if defined (SIGSTOP)
477 case TARGET_SIGNAL_STOP
:
480 #if defined (SIGTSTP)
481 case TARGET_SIGNAL_TSTP
:
484 #if defined (SIGCONT)
485 case TARGET_SIGNAL_CONT
:
488 #if defined (SIGTTIN)
489 case TARGET_SIGNAL_TTIN
:
492 #if defined (SIGTTOU)
493 case TARGET_SIGNAL_TTOU
:
496 #if defined (SIGVTALRM)
497 case TARGET_SIGNAL_VTALRM
:
500 #if defined (SIGPROF)
501 case TARGET_SIGNAL_PROF
:
504 #if defined (SIGXCPU)
505 case TARGET_SIGNAL_XCPU
:
508 #if defined (SIGXFSZ)
509 case TARGET_SIGNAL_XFSZ
:
512 #if defined (SIGWIND)
513 case TARGET_SIGNAL_WIND
:
516 #if defined (SIGPHONE)
517 case TARGET_SIGNAL_PHONE
:
520 #if defined (SIGLOST)
521 case TARGET_SIGNAL_LOST
:
524 #if defined (SIGWAITING)
525 case TARGET_SIGNAL_WAITING
:
528 #if defined (SIGCANCEL)
529 case TARGET_SIGNAL_CANCEL
:
533 case TARGET_SIGNAL_LWP
:
536 #if defined (SIGDANGER)
537 case TARGET_SIGNAL_DANGER
:
540 #if defined (SIGGRANT)
541 case TARGET_SIGNAL_GRANT
:
544 #if defined (SIGRETRACT)
545 case TARGET_SIGNAL_RETRACT
:
549 case TARGET_SIGNAL_MSG
:
552 #if defined (SIGSOUND)
553 case TARGET_SIGNAL_SOUND
:
557 case TARGET_SIGNAL_SAK
:
560 #if defined (SIGPRIO)
561 case TARGET_SIGNAL_PRIO
:
565 /* Mach exceptions. Assumes that the values for EXC_ are positive! */
566 #if defined (EXC_BAD_ACCESS) && defined (_NSIG)
567 case TARGET_EXC_BAD_ACCESS
:
568 return _NSIG
+ EXC_BAD_ACCESS
;
570 #if defined (EXC_BAD_INSTRUCTION) && defined (_NSIG)
571 case TARGET_EXC_BAD_INSTRUCTION
:
572 return _NSIG
+ EXC_BAD_INSTRUCTION
;
574 #if defined (EXC_ARITHMETIC) && defined (_NSIG)
575 case TARGET_EXC_ARITHMETIC
:
576 return _NSIG
+ EXC_ARITHMETIC
;
578 #if defined (EXC_EMULATION) && defined (_NSIG)
579 case TARGET_EXC_EMULATION
:
580 return _NSIG
+ EXC_EMULATION
;
582 #if defined (EXC_SOFTWARE) && defined (_NSIG)
583 case TARGET_EXC_SOFTWARE
:
584 return _NSIG
+ EXC_SOFTWARE
;
586 #if defined (EXC_BREAKPOINT) && defined (_NSIG)
587 case TARGET_EXC_BREAKPOINT
:
588 return _NSIG
+ EXC_BREAKPOINT
;
591 #if defined (SIGINFO)
592 case TARGET_SIGNAL_INFO
:
597 #if defined (REALTIME_LO)
600 if (oursig
>= TARGET_SIGNAL_REALTIME_33
601 && oursig
<= TARGET_SIGNAL_REALTIME_63
)
603 /* This block of signals is continuous, and
604 TARGET_SIGNAL_REALTIME_33 is 33 by definition. */
605 retsig
= (int) oursig
- (int) TARGET_SIGNAL_REALTIME_33
+ 33;
607 else if (oursig
== TARGET_SIGNAL_REALTIME_32
)
609 /* TARGET_SIGNAL_REALTIME_32 isn't contiguous with
610 TARGET_SIGNAL_REALTIME_33. It is 32 by definition. */
613 else if (oursig
>= TARGET_SIGNAL_REALTIME_64
614 && oursig
<= TARGET_SIGNAL_REALTIME_127
)
616 /* This block of signals is continuous, and
617 TARGET_SIGNAL_REALTIME_64 is 64 by definition. */
618 retsig
= (int) oursig
- (int) TARGET_SIGNAL_REALTIME_64
+ 64;
621 if (retsig
>= REALTIME_LO
&& retsig
< REALTIME_HI
)
631 target_signal_to_host_p (enum target_signal oursig
)
634 do_target_signal_to_host (oursig
, &oursig_ok
);
639 target_signal_to_host (enum target_signal oursig
)
642 int targ_signo
= do_target_signal_to_host (oursig
, &oursig_ok
);
645 /* The user might be trying to do "signal SIGSAK" where this system
646 doesn't have SIGSAK. */
647 warning (_("Signal %s does not exist on this system."),
648 target_signal_to_name (oursig
));
657 /* In some circumstances we allow a command to specify a numeric
658 signal. The idea is to keep these circumstances limited so that
659 users (and scripts) develop portable habits. For comparison,
660 POSIX.2 `kill' requires that 1,2,3,6,9,14, and 15 work (and using a
661 numeric signal at all is obsolescent. We are slightly more
662 lenient and allow 1-15 which should match host signal numbers on
663 most systems. Use of symbolic signal names is strongly encouraged. */
666 target_signal_from_command (int num
)
668 if (num
>= 1 && num
<= 15)
669 return (enum target_signal
) num
;
670 error (_("Only signals 1-15 are valid as numeric signals.\n\
671 Use \"info signals\" for a list of symbolic signals."));
674 extern initialize_file_ftype _initialize_signals
; /* -Wmissing-prototype */
677 _initialize_signals (void)
679 if (strcmp (signals
[TARGET_SIGNAL_LAST
].string
, "TARGET_SIGNAL_MAGIC") != 0)
680 internal_error (__FILE__
, __LINE__
, "failed internal consistency check");
684 default_target_signal_to_host (struct gdbarch
*gdbarch
, enum target_signal ts
)
686 return target_signal_to_host (ts
);
690 default_target_signal_from_host (struct gdbarch
*gdbarch
, int signo
)
692 return target_signal_from_host (signo
);
695 #endif /* ! GDBSERVER */