gdb/signals.c

   1 /* Target signal translation functions for GDB.
   2    Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
   3    2000, 2001 Free Software Foundation, Inc.
   4    Contributed by Cygnus Support.
   5
   6    This file is part of GDB.
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 2 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 59 Temple Place - Suite 330,
  21    Boston, MA 02111-1307, USA.  */
  22
  23 #include "defs.h"
  24 #include "target.h"
  25 #include <signal.h>
  26
  27 /* This table must match in order and size the signals in enum target_signal
  28    in target.h.  */
  29 /* *INDENT-OFF* */
  30 static struct {
  31   char *name;
  32   char *string;
  33   } signals [] =
  34 {
  35   {"0", "Signal 0"},
  36   {"SIGHUP", "Hangup"},
  37   {"SIGINT", "Interrupt"},
  38   {"SIGQUIT", "Quit"},
  39   {"SIGILL", "Illegal instruction"},
  40   {"SIGTRAP", "Trace/breakpoint trap"},
  41   {"SIGABRT", "Aborted"},
  42   {"SIGEMT", "Emulation trap"},
  43   {"SIGFPE", "Arithmetic exception"},
  44   {"SIGKILL", "Killed"},
  45   {"SIGBUS", "Bus error"},
  46   {"SIGSEGV", "Segmentation fault"},
  47   {"SIGSYS", "Bad system call"},
  48   {"SIGPIPE", "Broken pipe"},
  49   {"SIGALRM", "Alarm clock"},
  50   {"SIGTERM", "Terminated"},
  51   {"SIGURG", "Urgent I/O condition"},
  52   {"SIGSTOP", "Stopped (signal)"},
  53   {"SIGTSTP", "Stopped (user)"},
  54   {"SIGCONT", "Continued"},
  55   {"SIGCHLD", "Child status changed"},
  56   {"SIGTTIN", "Stopped (tty input)"},
  57   {"SIGTTOU", "Stopped (tty output)"},
  58   {"SIGIO", "I/O possible"},
  59   {"SIGXCPU", "CPU time limit exceeded"},
  60   {"SIGXFSZ", "File size limit exceeded"},
  61   {"SIGVTALRM", "Virtual timer expired"},
  62   {"SIGPROF", "Profiling timer expired"},
  63   {"SIGWINCH", "Window size changed"},
  64   {"SIGLOST", "Resource lost"},
  65   {"SIGUSR1", "User defined signal 1"},
  66   {"SIGUSR2", "User defined signal 2"},
  67   {"SIGPWR", "Power fail/restart"},
  68   {"SIGPOLL", "Pollable event occurred"},
  69   {"SIGWIND", "SIGWIND"},
  70   {"SIGPHONE", "SIGPHONE"},
  71   {"SIGWAITING", "Process's LWPs are blocked"},
  72   {"SIGLWP", "Signal LWP"},
  73   {"SIGDANGER", "Swap space dangerously low"},
  74   {"SIGGRANT", "Monitor mode granted"},
  75   {"SIGRETRACT", "Need to relinquish monitor mode"},
  76   {"SIGMSG", "Monitor mode data available"},
  77   {"SIGSOUND", "Sound completed"},
  78   {"SIGSAK", "Secure attention"},
  79   {"SIGPRIO", "SIGPRIO"},
  80   {"SIG33", "Real-time event 33"},
  81   {"SIG34", "Real-time event 34"},
  82   {"SIG35", "Real-time event 35"},
  83   {"SIG36", "Real-time event 36"},
  84   {"SIG37", "Real-time event 37"},
  85   {"SIG38", "Real-time event 38"},
  86   {"SIG39", "Real-time event 39"},
  87   {"SIG40", "Real-time event 40"},
  88   {"SIG41", "Real-time event 41"},
  89   {"SIG42", "Real-time event 42"},
  90   {"SIG43", "Real-time event 43"},
  91   {"SIG44", "Real-time event 44"},
  92   {"SIG45", "Real-time event 45"},
  93   {"SIG46", "Real-time event 46"},
  94   {"SIG47", "Real-time event 47"},
  95   {"SIG48", "Real-time event 48"},
  96   {"SIG49", "Real-time event 49"},
  97   {"SIG50", "Real-time event 50"},
  98   {"SIG51", "Real-time event 51"},
  99   {"SIG52", "Real-time event 52"},
 100   {"SIG53", "Real-time event 53"},
 101   {"SIG54", "Real-time event 54"},
 102   {"SIG55", "Real-time event 55"},
 103   {"SIG56", "Real-time event 56"},
 104   {"SIG57", "Real-time event 57"},
 105   {"SIG58", "Real-time event 58"},
 106   {"SIG59", "Real-time event 59"},
 107   {"SIG60", "Real-time event 60"},
 108   {"SIG61", "Real-time event 61"},
 109   {"SIG62", "Real-time event 62"},
 110   {"SIG63", "Real-time event 63"},
 111   {"SIGCANCEL", "LWP internal signal"},
 112   {"SIG32", "Real-time event 32"},
 113   {"SIG64", "Real-time event 64"},
 114   {"SIG65", "Real-time event 65"},
 115   {"SIG66", "Real-time event 66"},
 116   {"SIG67", "Real-time event 67"},
 117   {"SIG68", "Real-time event 68"},
 118   {"SIG69", "Real-time event 69"},
 119   {"SIG70", "Real-time event 70"},
 120   {"SIG71", "Real-time event 71"},
 121   {"SIG72", "Real-time event 72"},
 122   {"SIG73", "Real-time event 73"},
 123   {"SIG74", "Real-time event 74"},
 124   {"SIG75", "Real-time event 75"},
 125   {"SIG76", "Real-time event 76"},
 126   {"SIG77", "Real-time event 77"},
 127   {"SIG78", "Real-time event 78"},
 128   {"SIG79", "Real-time event 79"},
 129   {"SIG80", "Real-time event 80"},
 130   {"SIG81", "Real-time event 81"},
 131   {"SIG82", "Real-time event 82"},
 132   {"SIG83", "Real-time event 83"},
 133   {"SIG84", "Real-time event 84"},
 134   {"SIG85", "Real-time event 85"},
 135   {"SIG86", "Real-time event 86"},
 136   {"SIG87", "Real-time event 87"},
 137   {"SIG88", "Real-time event 88"},
 138   {"SIG89", "Real-time event 89"},
 139   {"SIG90", "Real-time event 90"},
 140   {"SIG91", "Real-time event 91"},
 141   {"SIG92", "Real-time event 92"},
 142   {"SIG93", "Real-time event 93"},
 143   {"SIG94", "Real-time event 94"},
 144   {"SIG95", "Real-time event 95"},
 145   {"SIG96", "Real-time event 96"},
 146   {"SIG97", "Real-time event 97"},
 147   {"SIG98", "Real-time event 98"},
 148   {"SIG99", "Real-time event 99"},
 149   {"SIG100", "Real-time event 100"},
 150   {"SIG101", "Real-time event 101"},
 151   {"SIG102", "Real-time event 102"},
 152   {"SIG103", "Real-time event 103"},
 153   {"SIG104", "Real-time event 104"},
 154   {"SIG105", "Real-time event 105"},
 155   {"SIG106", "Real-time event 106"},
 156   {"SIG107", "Real-time event 107"},
 157   {"SIG108", "Real-time event 108"},
 158   {"SIG109", "Real-time event 109"},
 159   {"SIG110", "Real-time event 110"},
 160   {"SIG111", "Real-time event 111"},
 161   {"SIG112", "Real-time event 112"},
 162   {"SIG113", "Real-time event 113"},
 163   {"SIG114", "Real-time event 114"},
 164   {"SIG115", "Real-time event 115"},
 165   {"SIG116", "Real-time event 116"},
 166   {"SIG117", "Real-time event 117"},
 167   {"SIG118", "Real-time event 118"},
 168   {"SIG119", "Real-time event 119"},
 169   {"SIG120", "Real-time event 120"},
 170   {"SIG121", "Real-time event 121"},
 171   {"SIG122", "Real-time event 122"},
 172   {"SIG123", "Real-time event 123"},
 173   {"SIG124", "Real-time event 124"},
 174   {"SIG125", "Real-time event 125"},
 175   {"SIG126", "Real-time event 126"},
 176   {"SIG127", "Real-time event 127"},
 177
 178 #if defined(MACH) || defined(__MACH__)
 179   /* Mach exceptions */
 180   {"EXC_BAD_ACCESS", "Could not access memory"},
 181   {"EXC_BAD_INSTRUCTION", "Illegal instruction/operand"},
 182   {"EXC_ARITHMETIC", "Arithmetic exception"},
 183   {"EXC_EMULATION", "Emulation instruction"},
 184   {"EXC_SOFTWARE", "Software generated exception"},
 185   {"EXC_BREAKPOINT", "Breakpoint"},
 186 #endif
 187   {"SIGINFO", "Information request"},
 188
 189   {NULL, "Unknown signal"},
 190   {NULL, "Internal error: printing TARGET_SIGNAL_DEFAULT"},
 191
 192   /* Last entry, used to check whether the table is the right size.  */
 193   {NULL, "TARGET_SIGNAL_MAGIC"}
 194 };
 195 /* *INDENT-ON* */
 196
 197
 198
 199 /* Return the string for a signal.  */
 200 char *
 201 target_signal_to_string (enum target_signal sig)
 202 {
 203   if ((sig >= TARGET_SIGNAL_FIRST) && (sig <= TARGET_SIGNAL_LAST))
 204     return signals[sig].string;
 205   else
 206     return signals[TARGET_SIGNAL_UNKNOWN].string;
 207 }
 208
 209 /* Return the name for a signal.  */
 210 char *
 211 target_signal_to_name (enum target_signal sig)
 212 {
 213   if ((sig >= TARGET_SIGNAL_FIRST) && (sig <= TARGET_SIGNAL_LAST)
 214       && signals[sig].name != NULL)
 215     return signals[sig].name;
 216   else
 217     /* I think the code which prints this will always print it along
 218        with the string, so no need to be verbose (very old comment).  */
 219     return "?";
 220 }
 221
 222 /* Given a name, return its signal.  */
 223 enum target_signal
 224 target_signal_from_name (char *name)
 225 {
 226   enum target_signal sig;
 227
 228   /* It's possible we also should allow "SIGCLD" as well as "SIGCHLD"
 229      for TARGET_SIGNAL_SIGCHLD.  SIGIOT, on the other hand, is more
 230      questionable; seems like by now people should call it SIGABRT
 231      instead.  */
 232
 233   /* This ugly cast brought to you by the native VAX compiler.  */
 234   for (sig = TARGET_SIGNAL_HUP;
 235        signals[sig].name != NULL;
 236        sig = (enum target_signal) ((int) sig + 1))
 237     if (STREQ (name, signals[sig].name))
 238       return sig;
 239   return TARGET_SIGNAL_UNKNOWN;
 240 }
 241 \f
 242 /* The following functions are to help certain targets deal
 243    with the signal/waitstatus stuff.  They could just as well be in
 244    a file called native-utils.c or unixwaitstatus-utils.c or whatever.  */
 245
 246 /* Convert host signal to our signals.  */
 247 enum target_signal
 248 target_signal_from_host (int hostsig)
 249 {
 250   /* A switch statement would make sense but would require special kludges
 251      to deal with the cases where more than one signal has the same number.  */
 252
 253   if (hostsig == 0)
 254     return TARGET_SIGNAL_0;
 255
 256 #if defined (SIGHUP)
 257   if (hostsig == SIGHUP)
 258     return TARGET_SIGNAL_HUP;
 259 #endif
 260 #if defined (SIGINT)
 261   if (hostsig == SIGINT)
 262     return TARGET_SIGNAL_INT;
 263 #endif
 264 #if defined (SIGQUIT)
 265   if (hostsig == SIGQUIT)
 266     return TARGET_SIGNAL_QUIT;
 267 #endif
 268 #if defined (SIGILL)
 269   if (hostsig == SIGILL)
 270     return TARGET_SIGNAL_ILL;
 271 #endif
 272 #if defined (SIGTRAP)
 273   if (hostsig == SIGTRAP)
 274     return TARGET_SIGNAL_TRAP;
 275 #endif
 276 #if defined (SIGABRT)
 277   if (hostsig == SIGABRT)
 278     return TARGET_SIGNAL_ABRT;
 279 #endif
 280 #if defined (SIGEMT)
 281   if (hostsig == SIGEMT)
 282     return TARGET_SIGNAL_EMT;
 283 #endif
 284 #if defined (SIGFPE)
 285   if (hostsig == SIGFPE)
 286     return TARGET_SIGNAL_FPE;
 287 #endif
 288 #if defined (SIGKILL)
 289   if (hostsig == SIGKILL)
 290     return TARGET_SIGNAL_KILL;
 291 #endif
 292 #if defined (SIGBUS)
 293   if (hostsig == SIGBUS)
 294     return TARGET_SIGNAL_BUS;
 295 #endif
 296 #if defined (SIGSEGV)
 297   if (hostsig == SIGSEGV)
 298     return TARGET_SIGNAL_SEGV;
 299 #endif
 300 #if defined (SIGSYS)
 301   if (hostsig == SIGSYS)
 302     return TARGET_SIGNAL_SYS;
 303 #endif
 304 #if defined (SIGPIPE)
 305   if (hostsig == SIGPIPE)
 306     return TARGET_SIGNAL_PIPE;
 307 #endif
 308 #if defined (SIGALRM)
 309   if (hostsig == SIGALRM)
 310     return TARGET_SIGNAL_ALRM;
 311 #endif
 312 #if defined (SIGTERM)
 313   if (hostsig == SIGTERM)
 314     return TARGET_SIGNAL_TERM;
 315 #endif
 316 #if defined (SIGUSR1)
 317   if (hostsig == SIGUSR1)
 318     return TARGET_SIGNAL_USR1;
 319 #endif
 320 #if defined (SIGUSR2)
 321   if (hostsig == SIGUSR2)
 322     return TARGET_SIGNAL_USR2;
 323 #endif
 324 #if defined (SIGCLD)
 325   if (hostsig == SIGCLD)
 326     return TARGET_SIGNAL_CHLD;
 327 #endif
 328 #if defined (SIGCHLD)
 329   if (hostsig == SIGCHLD)
 330     return TARGET_SIGNAL_CHLD;
 331 #endif
 332 #if defined (SIGPWR)
 333   if (hostsig == SIGPWR)
 334     return TARGET_SIGNAL_PWR;
 335 #endif
 336 #if defined (SIGWINCH)
 337   if (hostsig == SIGWINCH)
 338     return TARGET_SIGNAL_WINCH;
 339 #endif
 340 #if defined (SIGURG)
 341   if (hostsig == SIGURG)
 342     return TARGET_SIGNAL_URG;
 343 #endif
 344 #if defined (SIGIO)
 345   if (hostsig == SIGIO)
 346     return TARGET_SIGNAL_IO;
 347 #endif
 348 #if defined (SIGPOLL)
 349   if (hostsig == SIGPOLL)
 350     return TARGET_SIGNAL_POLL;
 351 #endif
 352 #if defined (SIGSTOP)
 353   if (hostsig == SIGSTOP)
 354     return TARGET_SIGNAL_STOP;
 355 #endif
 356 #if defined (SIGTSTP)
 357   if (hostsig == SIGTSTP)
 358     return TARGET_SIGNAL_TSTP;
 359 #endif
 360 #if defined (SIGCONT)
 361   if (hostsig == SIGCONT)
 362     return TARGET_SIGNAL_CONT;
 363 #endif
 364 #if defined (SIGTTIN)
 365   if (hostsig == SIGTTIN)
 366     return TARGET_SIGNAL_TTIN;
 367 #endif
 368 #if defined (SIGTTOU)
 369   if (hostsig == SIGTTOU)
 370     return TARGET_SIGNAL_TTOU;
 371 #endif
 372 #if defined (SIGVTALRM)
 373   if (hostsig == SIGVTALRM)
 374     return TARGET_SIGNAL_VTALRM;
 375 #endif
 376 #if defined (SIGPROF)
 377   if (hostsig == SIGPROF)
 378     return TARGET_SIGNAL_PROF;
 379 #endif
 380 #if defined (SIGXCPU)
 381   if (hostsig == SIGXCPU)
 382     return TARGET_SIGNAL_XCPU;
 383 #endif
 384 #if defined (SIGXFSZ)
 385   if (hostsig == SIGXFSZ)
 386     return TARGET_SIGNAL_XFSZ;
 387 #endif
 388 #if defined (SIGWIND)
 389   if (hostsig == SIGWIND)
 390     return TARGET_SIGNAL_WIND;
 391 #endif
 392 #if defined (SIGPHONE)
 393   if (hostsig == SIGPHONE)
 394     return TARGET_SIGNAL_PHONE;
 395 #endif
 396 #if defined (SIGLOST)
 397   if (hostsig == SIGLOST)
 398     return TARGET_SIGNAL_LOST;
 399 #endif
 400 #if defined (SIGWAITING)
 401   if (hostsig == SIGWAITING)
 402     return TARGET_SIGNAL_WAITING;
 403 #endif
 404 #if defined (SIGCANCEL)
 405   if (hostsig == SIGCANCEL)
 406     return TARGET_SIGNAL_CANCEL;
 407 #endif
 408 #if defined (SIGLWP)
 409   if (hostsig == SIGLWP)
 410     return TARGET_SIGNAL_LWP;
 411 #endif
 412 #if defined (SIGDANGER)
 413   if (hostsig == SIGDANGER)
 414     return TARGET_SIGNAL_DANGER;
 415 #endif
 416 #if defined (SIGGRANT)
 417   if (hostsig == SIGGRANT)
 418     return TARGET_SIGNAL_GRANT;
 419 #endif
 420 #if defined (SIGRETRACT)
 421   if (hostsig == SIGRETRACT)
 422     return TARGET_SIGNAL_RETRACT;
 423 #endif
 424 #if defined (SIGMSG)
 425   if (hostsig == SIGMSG)
 426     return TARGET_SIGNAL_MSG;
 427 #endif
 428 #if defined (SIGSOUND)
 429   if (hostsig == SIGSOUND)
 430     return TARGET_SIGNAL_SOUND;
 431 #endif
 432 #if defined (SIGSAK)
 433   if (hostsig == SIGSAK)
 434     return TARGET_SIGNAL_SAK;
 435 #endif
 436 #if defined (SIGPRIO)
 437   if (hostsig == SIGPRIO)
 438     return TARGET_SIGNAL_PRIO;
 439 #endif
 440
 441   /* Mach exceptions.  Assumes that the values for EXC_ are positive! */
 442 #if defined (EXC_BAD_ACCESS) && defined (_NSIG)
 443   if (hostsig == _NSIG + EXC_BAD_ACCESS)
 444     return TARGET_EXC_BAD_ACCESS;
 445 #endif
 446 #if defined (EXC_BAD_INSTRUCTION) && defined (_NSIG)
 447   if (hostsig == _NSIG + EXC_BAD_INSTRUCTION)
 448     return TARGET_EXC_BAD_INSTRUCTION;
 449 #endif
 450 #if defined (EXC_ARITHMETIC) && defined (_NSIG)
 451   if (hostsig == _NSIG + EXC_ARITHMETIC)
 452     return TARGET_EXC_ARITHMETIC;
 453 #endif
 454 #if defined (EXC_EMULATION) && defined (_NSIG)
 455   if (hostsig == _NSIG + EXC_EMULATION)
 456     return TARGET_EXC_EMULATION;
 457 #endif
 458 #if defined (EXC_SOFTWARE) && defined (_NSIG)
 459   if (hostsig == _NSIG + EXC_SOFTWARE)
 460     return TARGET_EXC_SOFTWARE;
 461 #endif
 462 #if defined (EXC_BREAKPOINT) && defined (_NSIG)
 463   if (hostsig == _NSIG + EXC_BREAKPOINT)
 464     return TARGET_EXC_BREAKPOINT;
 465 #endif
 466
 467 #if defined (SIGINFO)
 468   if (hostsig == SIGINFO)
 469     return TARGET_SIGNAL_INFO;
 470 #endif
 471
 472 #if defined (REALTIME_LO)
 473   if (hostsig >= REALTIME_LO && hostsig < REALTIME_HI)
 474     {
 475       /* This block of TARGET_SIGNAL_REALTIME value is in order.  */
 476       if (33 <= hostsig && hostsig <= 63)
 477         return (enum target_signal)
 478           (hostsig - 33 + (int) TARGET_SIGNAL_REALTIME_33);
 479       else if (hostsig == 32)
 480         return TARGET_SIGNAL_REALTIME_32;
 481       else if (64 <= hostsig && hostsig <= 127)
 482         return (enum target_signal)
 483           (hostsig - 64 + (int) TARGET_SIGNAL_REALTIME_64);
 484       else
 485         error ("GDB bug: target.c (target_signal_from_host): unrecognized real-time signal");
 486     }
 487 #endif
 488
 489 #if defined (SIGRTMIN)
 490   if (hostsig >= SIGRTMIN && hostsig <= SIGRTMAX)
 491     {
 492       /* This block of TARGET_SIGNAL_REALTIME value is in order.  */
 493       if (33 <= hostsig && hostsig <= 63)
 494         return (enum target_signal)
 495           (hostsig - 33 + (int) TARGET_SIGNAL_REALTIME_33);
 496       else if (hostsig == 64)
 497         return TARGET_SIGNAL_REALTIME_64;
 498       else
 499         error ("GDB bug: target.c (target_signal_from_host): unrecognized real-time signal");
 500     }
 501 #endif
 502   return TARGET_SIGNAL_UNKNOWN;
 503 }
 504
 505 /* Convert a OURSIG (an enum target_signal) to the form used by the
 506    target operating system (refered to as the ``host'') or zero if the
 507    equivalent host signal is not available.  Set/clear OURSIG_OK
 508    accordingly. */
 509
 510 static int
 511 do_target_signal_to_host (enum target_signal oursig,
 512                           int *oursig_ok)
 513 {
 514   *oursig_ok = 1;
 515   switch (oursig)
 516     {
 517     case TARGET_SIGNAL_0:
 518       return 0;
 519
 520 #if defined (SIGHUP)
 521     case TARGET_SIGNAL_HUP:
 522       return SIGHUP;
 523 #endif
 524 #if defined (SIGINT)
 525     case TARGET_SIGNAL_INT:
 526       return SIGINT;
 527 #endif
 528 #if defined (SIGQUIT)
 529     case TARGET_SIGNAL_QUIT:
 530       return SIGQUIT;
 531 #endif
 532 #if defined (SIGILL)
 533     case TARGET_SIGNAL_ILL:
 534       return SIGILL;
 535 #endif
 536 #if defined (SIGTRAP)
 537     case TARGET_SIGNAL_TRAP:
 538       return SIGTRAP;
 539 #endif
 540 #if defined (SIGABRT)
 541     case TARGET_SIGNAL_ABRT:
 542       return SIGABRT;
 543 #endif
 544 #if defined (SIGEMT)
 545     case TARGET_SIGNAL_EMT:
 546       return SIGEMT;
 547 #endif
 548 #if defined (SIGFPE)
 549     case TARGET_SIGNAL_FPE:
 550       return SIGFPE;
 551 #endif
 552 #if defined (SIGKILL)
 553     case TARGET_SIGNAL_KILL:
 554       return SIGKILL;
 555 #endif
 556 #if defined (SIGBUS)
 557     case TARGET_SIGNAL_BUS:
 558       return SIGBUS;
 559 #endif
 560 #if defined (SIGSEGV)
 561     case TARGET_SIGNAL_SEGV:
 562       return SIGSEGV;
 563 #endif
 564 #if defined (SIGSYS)
 565     case TARGET_SIGNAL_SYS:
 566       return SIGSYS;
 567 #endif
 568 #if defined (SIGPIPE)
 569     case TARGET_SIGNAL_PIPE:
 570       return SIGPIPE;
 571 #endif
 572 #if defined (SIGALRM)
 573     case TARGET_SIGNAL_ALRM:
 574       return SIGALRM;
 575 #endif
 576 #if defined (SIGTERM)
 577     case TARGET_SIGNAL_TERM:
 578       return SIGTERM;
 579 #endif
 580 #if defined (SIGUSR1)
 581     case TARGET_SIGNAL_USR1:
 582       return SIGUSR1;
 583 #endif
 584 #if defined (SIGUSR2)
 585     case TARGET_SIGNAL_USR2:
 586       return SIGUSR2;
 587 #endif
 588 #if defined (SIGCHLD) || defined (SIGCLD)
 589     case TARGET_SIGNAL_CHLD:
 590 #if defined (SIGCHLD)
 591       return SIGCHLD;
 592 #else
 593       return SIGCLD;
 594 #endif
 595 #endif /* SIGCLD or SIGCHLD */
 596 #if defined (SIGPWR)
 597     case TARGET_SIGNAL_PWR:
 598       return SIGPWR;
 599 #endif
 600 #if defined (SIGWINCH)
 601     case TARGET_SIGNAL_WINCH:
 602       return SIGWINCH;
 603 #endif
 604 #if defined (SIGURG)
 605     case TARGET_SIGNAL_URG:
 606       return SIGURG;
 607 #endif
 608 #if defined (SIGIO)
 609     case TARGET_SIGNAL_IO:
 610       return SIGIO;
 611 #endif
 612 #if defined (SIGPOLL)
 613     case TARGET_SIGNAL_POLL:
 614       return SIGPOLL;
 615 #endif
 616 #if defined (SIGSTOP)
 617     case TARGET_SIGNAL_STOP:
 618       return SIGSTOP;
 619 #endif
 620 #if defined (SIGTSTP)
 621     case TARGET_SIGNAL_TSTP:
 622       return SIGTSTP;
 623 #endif
 624 #if defined (SIGCONT)
 625     case TARGET_SIGNAL_CONT:
 626       return SIGCONT;
 627 #endif
 628 #if defined (SIGTTIN)
 629     case TARGET_SIGNAL_TTIN:
 630       return SIGTTIN;
 631 #endif
 632 #if defined (SIGTTOU)
 633     case TARGET_SIGNAL_TTOU:
 634       return SIGTTOU;
 635 #endif
 636 #if defined (SIGVTALRM)
 637     case TARGET_SIGNAL_VTALRM:
 638       return SIGVTALRM;
 639 #endif
 640 #if defined (SIGPROF)
 641     case TARGET_SIGNAL_PROF:
 642       return SIGPROF;
 643 #endif
 644 #if defined (SIGXCPU)
 645     case TARGET_SIGNAL_XCPU:
 646       return SIGXCPU;
 647 #endif
 648 #if defined (SIGXFSZ)
 649     case TARGET_SIGNAL_XFSZ:
 650       return SIGXFSZ;
 651 #endif
 652 #if defined (SIGWIND)
 653     case TARGET_SIGNAL_WIND:
 654       return SIGWIND;
 655 #endif
 656 #if defined (SIGPHONE)
 657     case TARGET_SIGNAL_PHONE:
 658       return SIGPHONE;
 659 #endif
 660 #if defined (SIGLOST)
 661     case TARGET_SIGNAL_LOST:
 662       return SIGLOST;
 663 #endif
 664 #if defined (SIGWAITING)
 665     case TARGET_SIGNAL_WAITING:
 666       return SIGWAITING;
 667 #endif
 668 #if defined (SIGCANCEL)
 669     case TARGET_SIGNAL_CANCEL:
 670       return SIGCANCEL;
 671 #endif
 672 #if defined (SIGLWP)
 673     case TARGET_SIGNAL_LWP:
 674       return SIGLWP;
 675 #endif
 676 #if defined (SIGDANGER)
 677     case TARGET_SIGNAL_DANGER:
 678       return SIGDANGER;
 679 #endif
 680 #if defined (SIGGRANT)
 681     case TARGET_SIGNAL_GRANT:
 682       return SIGGRANT;
 683 #endif
 684 #if defined (SIGRETRACT)
 685     case TARGET_SIGNAL_RETRACT:
 686       return SIGRETRACT;
 687 #endif
 688 #if defined (SIGMSG)
 689     case TARGET_SIGNAL_MSG:
 690       return SIGMSG;
 691 #endif
 692 #if defined (SIGSOUND)
 693     case TARGET_SIGNAL_SOUND:
 694       return SIGSOUND;
 695 #endif
 696 #if defined (SIGSAK)
 697     case TARGET_SIGNAL_SAK:
 698       return SIGSAK;
 699 #endif
 700 #if defined (SIGPRIO)
 701     case TARGET_SIGNAL_PRIO:
 702       return SIGPRIO;
 703 #endif
 704
 705       /* Mach exceptions.  Assumes that the values for EXC_ are positive! */
 706 #if defined (EXC_BAD_ACCESS) && defined (_NSIG)
 707     case TARGET_EXC_BAD_ACCESS:
 708       return _NSIG + EXC_BAD_ACCESS;
 709 #endif
 710 #if defined (EXC_BAD_INSTRUCTION) && defined (_NSIG)
 711     case TARGET_EXC_BAD_INSTRUCTION:
 712       return _NSIG + EXC_BAD_INSTRUCTION;
 713 #endif
 714 #if defined (EXC_ARITHMETIC) && defined (_NSIG)
 715     case TARGET_EXC_ARITHMETIC:
 716       return _NSIG + EXC_ARITHMETIC;
 717 #endif
 718 #if defined (EXC_EMULATION) && defined (_NSIG)
 719     case TARGET_EXC_EMULATION:
 720       return _NSIG + EXC_EMULATION;
 721 #endif
 722 #if defined (EXC_SOFTWARE) && defined (_NSIG)
 723     case TARGET_EXC_SOFTWARE:
 724       return _NSIG + EXC_SOFTWARE;
 725 #endif
 726 #if defined (EXC_BREAKPOINT) && defined (_NSIG)
 727     case TARGET_EXC_BREAKPOINT:
 728       return _NSIG + EXC_BREAKPOINT;
 729 #endif
 730
 731 #if defined (SIGINFO)
 732     case TARGET_SIGNAL_INFO:
 733       return SIGINFO;
 734 #endif
 735
 736     default:
 737 #if defined (REALTIME_LO)
 738       if (oursig >= TARGET_SIGNAL_REALTIME_33
 739           && oursig <= TARGET_SIGNAL_REALTIME_63)
 740         {
 741           /* This block of signals is continuous, and
 742              TARGET_SIGNAL_REALTIME_33 is 33 by definition.  */
 743           int retsig =
 744             (int) oursig - (int) TARGET_SIGNAL_REALTIME_33 + 33;
 745           if (retsig >= REALTIME_LO && retsig < REALTIME_HI)
 746             return retsig;
 747         }
 748 #if (REALTIME_LO < 33)
 749       else if (oursig == TARGET_SIGNAL_REALTIME_32)
 750         {
 751           /* TARGET_SIGNAL_REALTIME_32 isn't contiguous with
 752              TARGET_SIGNAL_REALTIME_33.  It is 32 by definition.  */
 753           return 32;
 754         }
 755 #endif
 756 #if (REALTIME_HI > 64)
 757       if (oursig >= TARGET_SIGNAL_REALTIME_64
 758           && oursig <= TARGET_SIGNAL_REALTIME_127)
 759         {
 760           /* This block of signals is continuous, and
 761              TARGET_SIGNAL_REALTIME_64 is 64 by definition.  */
 762           int retsig =
 763             (int) oursig - (int) TARGET_SIGNAL_REALTIME_64 + 64;
 764           if (retsig >= REALTIME_LO && retsig < REALTIME_HI)
 765             return retsig;
 766         }
 767
 768 #endif
 769 #endif
 770
 771 #if defined (SIGRTMIN)
 772       if (oursig >= TARGET_SIGNAL_REALTIME_33
 773           && oursig <= TARGET_SIGNAL_REALTIME_63)
 774         {
 775           /* This block of signals is continuous, and
 776              TARGET_SIGNAL_REALTIME_33 is 33 by definition.  */
 777           int retsig =
 778             (int) oursig - (int) TARGET_SIGNAL_REALTIME_33 + 33;
 779           if (retsig >= SIGRTMIN && retsig <= SIGRTMAX)
 780             return retsig;
 781         }
 782       else if (oursig == TARGET_SIGNAL_REALTIME_64)
 783         return 64;
 784 #endif
 785       *oursig_ok = 0;
 786       return 0;
 787     }
 788 }
 789
 790 int
 791 target_signal_to_host_p (enum target_signal oursig)
 792 {
 793   int oursig_ok;
 794   do_target_signal_to_host (oursig, &oursig_ok);
 795   return oursig_ok;
 796 }
 797
 798 int
 799 target_signal_to_host (enum target_signal oursig)
 800 {
 801   int oursig_ok;
 802   int targ_signo = do_target_signal_to_host (oursig, &oursig_ok);
 803   if (!oursig_ok)
 804     {
 805       /* The user might be trying to do "signal SIGSAK" where this system
 806          doesn't have SIGSAK.  */
 807       warning ("Signal %s does not exist on this system.\n",
 808                target_signal_to_name (oursig));
 809       return 0;
 810     }
 811   else
 812     return targ_signo;
 813 }
 814
 815 /* In some circumstances we allow a command to specify a numeric
 816    signal.  The idea is to keep these circumstances limited so that
 817    users (and scripts) develop portable habits.  For comparison,
 818    POSIX.2 `kill' requires that 1,2,3,6,9,14, and 15 work (and using a
 819    numeric signal at all is obsolescent.  We are slightly more
 820    lenient and allow 1-15 which should match host signal numbers on
 821    most systems.  Use of symbolic signal names is strongly encouraged.  */
 822
 823 enum target_signal
 824 target_signal_from_command (int num)
 825 {
 826   if (num >= 1 && num <= 15)
 827     return (enum target_signal) num;
 828   error ("Only signals 1-15 are valid as numeric signals.\n\
 829 Use \"info signals\" for a list of symbolic signals.");
 830 }
 831
 832 void
 833 _initialize_signals (void)
 834 {
 835   if (!STREQ (signals[TARGET_SIGNAL_LAST].string, "TARGET_SIGNAL_MAGIC"))
 836     internal_error (__FILE__, __LINE__, "failed internal consistency check");
 837 }