coregrind/m_gdbserver/signals.c

   1 /* Target signal translation functions for GDB.
   2    Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
   3    2000, 2001, 2002, 2011 Free Software Foundation, Inc.
   4    Contributed by Cygnus Support.
   5
   6    This file is part of GDB.
   7    It has been modified to integrate it in valgrind
   8
   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 2 of the License, or
  12    (at your option) any later version.
  13
  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.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program; if not, write to the Free Software
  21    Foundation, Inc., 51 Franklin Street, Fifth Floor,
  22    Boston, MA 02110-1301, USA.  */
  23
  24 #include "server.h"
  25
  26 #if defined(VGO_darwin)
  27 // ???? darwin signal.h defines SIGPOLL conditionnally ????
  28 #ifndef SIGPOLL
  29 #define SIGPOLL 7
  30 #endif
  31 #endif
  32
  33 enum target_signal target_signal_from_name (const char *name);
  34 enum target_signal target_signal_from_command (int num);
  35
  36 /* This table must match in order and size the signals in enum target_signal
  37    in gdb/signals.h. */
  38 /* *INDENT-OFF* */
  39 static struct {
  40    const char *name;
  41    const char *string;
  42 } signals [] =
  43    {
  44       {"0", "Signal 0"},
  45       {"SIGHUP", "Hangup"},
  46       {"SIGINT", "Interrupt"},
  47       {"SIGQUIT", "Quit"},
  48       {"SIGILL", "Illegal instruction"},
  49       {"SIGTRAP", "Trace/breakpoint trap"},
  50       {"SIGABRT", "Aborted"},
  51       {"SIGEMT", "Emulation trap"},
  52       {"SIGFPE", "Arithmetic exception"},
  53       {"SIGKILL", "Killed"},
  54       {"SIGBUS", "Bus error"},
  55       {"SIGSEGV", "Segmentation fault"},
  56       {"SIGSYS", "Bad system call"},
  57       {"SIGPIPE", "Broken pipe"},
  58       {"SIGALRM", "Alarm clock"},
  59       {"SIGTERM", "Terminated"},
  60       {"SIGURG", "Urgent I/O condition"},
  61       {"SIGSTOP", "Stopped (signal)"},
  62       {"SIGTSTP", "Stopped (user)"},
  63       {"SIGCONT", "Continued"},
  64       {"SIGCHLD", "Child status changed"},
  65       {"SIGTTIN", "Stopped (tty input)"},
  66       {"SIGTTOU", "Stopped (tty output)"},
  67       {"SIGIO", "I/O possible"},
  68       {"SIGXCPU", "CPU time limit exceeded"},
  69       {"SIGXFSZ", "File size limit exceeded"},
  70       {"SIGVTALRM", "Virtual timer expired"},
  71       {"SIGPROF", "Profiling timer expired"},
  72       {"SIGWINCH", "Window size changed"},
  73       {"SIGLOST", "Resource lost"},
  74       {"SIGUSR1", "User defined signal 1"},
  75       {"SIGUSR2", "User defined signal 2"},
  76       {"SIGPWR", "Power fail/restart"},
  77       {"SIGPOLL", "Pollable event occurred"},
  78       {"SIGWIND", "SIGWIND"},
  79       {"SIGPHONE", "SIGPHONE"},
  80       {"SIGWAITING", "Process's LWPs are blocked"},
  81       {"SIGLWP", "Signal LWP"},
  82       {"SIGDANGER", "Swap space dangerously low"},
  83       {"SIGGRANT", "Monitor mode granted"},
  84       {"SIGRETRACT", "Need to relinquish monitor mode"},
  85       {"SIGMSG", "Monitor mode data available"},
  86       {"SIGSOUND", "Sound completed"},
  87       {"SIGSAK", "Secure attention"},
  88       {"SIGPRIO", "SIGPRIO"},
  89       {"SIG33", "Real-time event 33"},
  90       {"SIG34", "Real-time event 34"},
  91       {"SIG35", "Real-time event 35"},
  92       {"SIG36", "Real-time event 36"},
  93       {"SIG37", "Real-time event 37"},
  94       {"SIG38", "Real-time event 38"},
  95       {"SIG39", "Real-time event 39"},
  96       {"SIG40", "Real-time event 40"},
  97       {"SIG41", "Real-time event 41"},
  98       {"SIG42", "Real-time event 42"},
  99       {"SIG43", "Real-time event 43"},
 100       {"SIG44", "Real-time event 44"},
 101       {"SIG45", "Real-time event 45"},
 102       {"SIG46", "Real-time event 46"},
 103       {"SIG47", "Real-time event 47"},
 104       {"SIG48", "Real-time event 48"},
 105       {"SIG49", "Real-time event 49"},
 106       {"SIG50", "Real-time event 50"},
 107       {"SIG51", "Real-time event 51"},
 108       {"SIG52", "Real-time event 52"},
 109       {"SIG53", "Real-time event 53"},
 110       {"SIG54", "Real-time event 54"},
 111       {"SIG55", "Real-time event 55"},
 112       {"SIG56", "Real-time event 56"},
 113       {"SIG57", "Real-time event 57"},
 114       {"SIG58", "Real-time event 58"},
 115       {"SIG59", "Real-time event 59"},
 116       {"SIG60", "Real-time event 60"},
 117       {"SIG61", "Real-time event 61"},
 118       {"SIG62", "Real-time event 62"},
 119       {"SIG63", "Real-time event 63"},
 120       {"SIGCANCEL", "LWP internal signal"},
 121       {"SIG32", "Real-time event 32"},
 122       {"SIG64", "Real-time event 64"},
 123       {"SIG65", "Real-time event 65"},
 124       {"SIG66", "Real-time event 66"},
 125       {"SIG67", "Real-time event 67"},
 126       {"SIG68", "Real-time event 68"},
 127       {"SIG69", "Real-time event 69"},
 128       {"SIG70", "Real-time event 70"},
 129       {"SIG71", "Real-time event 71"},
 130       {"SIG72", "Real-time event 72"},
 131       {"SIG73", "Real-time event 73"},
 132       {"SIG74", "Real-time event 74"},
 133       {"SIG75", "Real-time event 75"},
 134       {"SIG76", "Real-time event 76"},
 135       {"SIG77", "Real-time event 77"},
 136       {"SIG78", "Real-time event 78"},
 137       {"SIG79", "Real-time event 79"},
 138       {"SIG80", "Real-time event 80"},
 139       {"SIG81", "Real-time event 81"},
 140       {"SIG82", "Real-time event 82"},
 141       {"SIG83", "Real-time event 83"},
 142       {"SIG84", "Real-time event 84"},
 143       {"SIG85", "Real-time event 85"},
 144       {"SIG86", "Real-time event 86"},
 145       {"SIG87", "Real-time event 87"},
 146       {"SIG88", "Real-time event 88"},
 147       {"SIG89", "Real-time event 89"},
 148       {"SIG90", "Real-time event 90"},
 149       {"SIG91", "Real-time event 91"},
 150       {"SIG92", "Real-time event 92"},
 151       {"SIG93", "Real-time event 93"},
 152       {"SIG94", "Real-time event 94"},
 153       {"SIG95", "Real-time event 95"},
 154       {"SIG96", "Real-time event 96"},
 155       {"SIG97", "Real-time event 97"},
 156       {"SIG98", "Real-time event 98"},
 157       {"SIG99", "Real-time event 99"},
 158       {"SIG100", "Real-time event 100"},
 159       {"SIG101", "Real-time event 101"},
 160       {"SIG102", "Real-time event 102"},
 161       {"SIG103", "Real-time event 103"},
 162       {"SIG104", "Real-time event 104"},
 163       {"SIG105", "Real-time event 105"},
 164       {"SIG106", "Real-time event 106"},
 165       {"SIG107", "Real-time event 107"},
 166       {"SIG108", "Real-time event 108"},
 167       {"SIG109", "Real-time event 109"},
 168       {"SIG110", "Real-time event 110"},
 169       {"SIG111", "Real-time event 111"},
 170       {"SIG112", "Real-time event 112"},
 171       {"SIG113", "Real-time event 113"},
 172       {"SIG114", "Real-time event 114"},
 173       {"SIG115", "Real-time event 115"},
 174       {"SIG116", "Real-time event 116"},
 175       {"SIG117", "Real-time event 117"},
 176       {"SIG118", "Real-time event 118"},
 177       {"SIG119", "Real-time event 119"},
 178       {"SIG120", "Real-time event 120"},
 179       {"SIG121", "Real-time event 121"},
 180       {"SIG122", "Real-time event 122"},
 181       {"SIG123", "Real-time event 123"},
 182       {"SIG124", "Real-time event 124"},
 183       {"SIG125", "Real-time event 125"},
 184       {"SIG126", "Real-time event 126"},
 185       {"SIG127", "Real-time event 127"},
 186
 187       {"SIGINFO", "Information request"},
 188
 189       {NULL, "Unknown signal"},
 190       {NULL, "Internal error: printing TARGET_SIGNAL_DEFAULT"},
 191
 192       /* Mach exceptions */
 193       {"EXC_BAD_ACCESS", "Could not access memory"},
 194       {"EXC_BAD_INSTRUCTION", "Illegal instruction/operand"},
 195       {"EXC_ARITHMETIC", "Arithmetic exception"},
 196       {"EXC_EMULATION", "Emulation instruction"},
 197       {"EXC_SOFTWARE", "Software generated exception"},
 198       {"EXC_BREAKPOINT", "Breakpoint"},
 199
 200       /* Last entry, used to check whether the table is the right size.  */
 201       {NULL, "TARGET_SIGNAL_MAGIC"}
 202    };
 203 /* *INDENT-ON* */
 204
 205
 206
 207 /* Return the name for a signal.  */
 208 const char *target_signal_to_name (enum target_signal sig)
 209 {
 210    if ((sig >= TARGET_SIGNAL_FIRST) && (sig <= TARGET_SIGNAL_LAST)
 211        && signals[sig].name != NULL)
 212       return signals[sig].name;
 213    else
 214       /* I think the code which prints this will always print it along
 215          with the string, so no need to be verbose (very old comment).  */
 216       return "?";
 217 }
 218
 219 /* Given a name, return its signal.  */
 220 enum target_signal target_signal_from_name (const char *name)
 221 {
 222    enum target_signal sig;
 223
 224    /* It's possible we also should allow "SIGCLD" as well as "SIGCHLD"
 225       for TARGET_SIGNAL_SIGCHLD.  SIGIOT, on the other hand, is more
 226       questionable; seems like by now people should call it SIGABRT
 227       instead.  */
 228
 229    /* This ugly cast brought to you by the native VAX compiler.  */
 230    for (sig = TARGET_SIGNAL_HUP;
 231         sig < TARGET_SIGNAL_LAST;
 232         sig = (enum target_signal) ((int) sig + 1))
 233       if (signals[sig].name != NULL
 234           && strcmp (name, signals[sig].name) == 0)
 235          return sig;
 236    return TARGET_SIGNAL_UNKNOWN;
 237 }
 238
 239
 240 /* The following functions are to help certain targets deal
 241    with the signal/waitstatus stuff.  They could just as well be in
 242    a file called native-utils.c or unixwaitstatus-utils.c or whatever.  */
 243
 244 /* Convert host signal to our signals.  */
 245 enum target_signal target_signal_from_host (int hostsig)
 246 {
 247    /* A switch statement would make sense but would require special kludges
 248       to deal with the cases where more than one signal has the same number.  */
 249
 250    if (hostsig == 0)
 251       return TARGET_SIGNAL_0;
 252
 253 #if defined (VKI_SIGHUP)
 254    if (hostsig == VKI_SIGHUP)
 255       return TARGET_SIGNAL_HUP;
 256 #endif
 257 #if defined (VKI_SIGINT)
 258    if (hostsig == VKI_SIGINT)
 259       return TARGET_SIGNAL_INT;
 260 #endif
 261 #if defined (VKI_SIGQUIT)
 262    if (hostsig == VKI_SIGQUIT)
 263       return TARGET_SIGNAL_QUIT;
 264 #endif
 265 #if defined (VKI_SIGILL)
 266    if (hostsig == VKI_SIGILL)
 267       return TARGET_SIGNAL_ILL;
 268 #endif
 269 #if defined (VKI_SIGTRAP)
 270    if (hostsig == VKI_SIGTRAP)
 271       return TARGET_SIGNAL_TRAP;
 272 #endif
 273 #if defined (VKI_SIGABRT)
 274    if (hostsig == VKI_SIGABRT)
 275       return TARGET_SIGNAL_ABRT;
 276 #endif
 277 #if defined (VKI_SIGEMT)
 278    if (hostsig == VKI_SIGEMT)
 279       return TARGET_SIGNAL_EMT;
 280 #endif
 281 #if defined (VKI_SIGFPE)
 282    if (hostsig == VKI_SIGFPE)
 283       return TARGET_SIGNAL_FPE;
 284 #endif
 285 #if defined (VKI_SIGKILL)
 286    if (hostsig == VKI_SIGKILL)
 287       return TARGET_SIGNAL_KILL;
 288 #endif
 289 #if defined (VKI_SIGBUS)
 290    if (hostsig == VKI_SIGBUS)
 291       return TARGET_SIGNAL_BUS;
 292 #endif
 293 #if defined (VKI_SIGSEGV)
 294    if (hostsig == VKI_SIGSEGV)
 295       return TARGET_SIGNAL_SEGV;
 296 #endif
 297 #if defined (VKI_SIGSYS)
 298    if (hostsig == VKI_SIGSYS)
 299       return TARGET_SIGNAL_SYS;
 300 #endif
 301 #if defined (VKI_SIGPIPE)
 302    if (hostsig == VKI_SIGPIPE)
 303       return TARGET_SIGNAL_PIPE;
 304 #endif
 305 #if defined (VKI_SIGALRM)
 306    if (hostsig == VKI_SIGALRM)
 307       return TARGET_SIGNAL_ALRM;
 308 #endif
 309 #if defined (VKI_SIGTERM)
 310    if (hostsig == VKI_SIGTERM)
 311       return TARGET_SIGNAL_TERM;
 312 #endif
 313 #if defined (VKI_SIGUSR1)
 314    if (hostsig == VKI_SIGUSR1)
 315       return TARGET_SIGNAL_USR1;
 316 #endif
 317 #if defined (VKI_SIGUSR2)
 318    if (hostsig == VKI_SIGUSR2)
 319       return TARGET_SIGNAL_USR2;
 320 #endif
 321 #if defined (VKI_SIGCLD)
 322    if (hostsig == VKI_SIGCLD)
 323       return TARGET_SIGNAL_CHLD;
 324 #endif
 325 #if defined (VKI_SIGCHLD)
 326    if (hostsig == VKI_SIGCHLD)
 327       return TARGET_SIGNAL_CHLD;
 328 #endif
 329 #if defined (VKI_SIGPWR)
 330    if (hostsig == VKI_SIGPWR)
 331       return TARGET_SIGNAL_PWR;
 332 #endif
 333 #if defined (VKI_SIGWINCH)
 334    if (hostsig == VKI_SIGWINCH)
 335       return TARGET_SIGNAL_WINCH;
 336 #endif
 337 #if defined (VKI_SIGURG)
 338    if (hostsig == VKI_SIGURG)
 339       return TARGET_SIGNAL_URG;
 340 #endif
 341 #if defined (VKI_SIGIO)
 342    if (hostsig == VKI_SIGIO)
 343       return TARGET_SIGNAL_IO;
 344 #endif
 345 #if defined (VKI_SIGPOLL)
 346    if (hostsig == VKI_SIGPOLL)
 347       return TARGET_SIGNAL_POLL;
 348 #endif
 349 #if defined (VKI_SIGSTOP)
 350    if (hostsig == VKI_SIGSTOP)
 351       return TARGET_SIGNAL_STOP;
 352 #endif
 353 #if defined (VKI_SIGTSTP)
 354    if (hostsig == VKI_SIGTSTP)
 355       return TARGET_SIGNAL_TSTP;
 356 #endif
 357 #if defined (VKI_SIGCONT)
 358    if (hostsig == VKI_SIGCONT)
 359       return TARGET_SIGNAL_CONT;
 360 #endif
 361 #if defined (VKI_SIGTTIN)
 362    if (hostsig == VKI_SIGTTIN)
 363       return TARGET_SIGNAL_TTIN;
 364 #endif
 365 #if defined (VKI_SIGTTOU)
 366    if (hostsig == VKI_SIGTTOU)
 367       return TARGET_SIGNAL_TTOU;
 368 #endif
 369 #if defined (VKI_SIGVTALRM)
 370    if (hostsig == VKI_SIGVTALRM)
 371       return TARGET_SIGNAL_VTALRM;
 372 #endif
 373 #if defined (VKI_SIGPROF)
 374    if (hostsig == VKI_SIGPROF)
 375       return TARGET_SIGNAL_PROF;
 376 #endif
 377 #if defined (VKI_SIGXCPU)
 378    if (hostsig == VKI_SIGXCPU)
 379       return TARGET_SIGNAL_XCPU;
 380 #endif
 381 #if defined (VKI_SIGXFSZ)
 382    if (hostsig == VKI_SIGXFSZ)
 383       return TARGET_SIGNAL_XFSZ;
 384 #endif
 385 #if defined (VKI_SIGWIND)
 386    if (hostsig == VKI_SIGWIND)
 387       return TARGET_SIGNAL_WIND;
 388 #endif
 389 #if defined (VKI_SIGPHONE)
 390    if (hostsig == VKI_SIGPHONE)
 391       return TARGET_SIGNAL_PHONE;
 392 #endif
 393 #if defined (VKI_SIGLOST)
 394    if (hostsig == VKI_SIGLOST)
 395       return TARGET_SIGNAL_LOST;
 396 #endif
 397 #if defined (VKI_SIGWAITING)
 398    if (hostsig == VKI_SIGWAITING)
 399       return TARGET_SIGNAL_WAITING;
 400 #endif
 401 #if defined (VKI_SIGCANCEL)
 402    if (hostsig == VKI_SIGCANCEL)
 403       return TARGET_SIGNAL_CANCEL;
 404 #endif
 405 #if defined (VKI_SIGLWP)
 406    if (hostsig == VKI_SIGLWP)
 407       return TARGET_SIGNAL_LWP;
 408 #endif
 409 #if defined (VKI_SIGDANGER)
 410    if (hostsig == VKI_SIGDANGER)
 411       return TARGET_SIGNAL_DANGER;
 412 #endif
 413 #if defined (VKI_SIGGRANT)
 414    if (hostsig == VKI_SIGGRANT)
 415       return TARGET_SIGNAL_GRANT;
 416 #endif
 417 #if defined (VKI_SIGRETRACT)
 418    if (hostsig == VKI_SIGRETRACT)
 419       return TARGET_SIGNAL_RETRACT;
 420 #endif
 421 #if defined (VKI_SIGMSG)
 422    if (hostsig == VKI_SIGMSG)
 423       return TARGET_SIGNAL_MSG;
 424 #endif
 425 #if defined (VKI_SIGSOUND)
 426    if (hostsig == VKI_SIGSOUND)
 427       return TARGET_SIGNAL_SOUND;
 428 #endif
 429 #if defined (VKI_SIGSAK)
 430    if (hostsig == VKI_SIGSAK)
 431       return TARGET_SIGNAL_SAK;
 432 #endif
 433 #if defined (VKI_SIGPRIO)
 434    if (hostsig == VKI_SIGPRIO)
 435       return TARGET_SIGNAL_PRIO;
 436 #endif
 437
 438    /* Mach exceptions.  Assumes that the values for EXC_ are positive! */
 439 #if defined (EXC_BAD_ACCESS) && defined (_NSIG)
 440    if (hostsig == _NSIG + EXC_BAD_ACCESS)
 441       return TARGET_EXC_BAD_ACCESS;
 442 #endif
 443 #if defined (EXC_BAD_INSTRUCTION) && defined (_NSIG)
 444    if (hostsig == _NSIG + EXC_BAD_INSTRUCTION)
 445       return TARGET_EXC_BAD_INSTRUCTION;
 446 #endif
 447 #if defined (EXC_ARITHMETIC) && defined (_NSIG)
 448    if (hostsig == _NSIG + EXC_ARITHMETIC)
 449       return TARGET_EXC_ARITHMETIC;
 450 #endif
 451 #if defined (EXC_EMULATION) && defined (_NSIG)
 452    if (hostsig == _NSIG + EXC_EMULATION)
 453       return TARGET_EXC_EMULATION;
 454 #endif
 455 #if defined (EXC_SOFTWARE) && defined (_NSIG)
 456    if (hostsig == _NSIG + EXC_SOFTWARE)
 457       return TARGET_EXC_SOFTWARE;
 458 #endif
 459 #if defined (EXC_BREAKPOINT) && defined (_NSIG)
 460    if (hostsig == _NSIG + EXC_BREAKPOINT)
 461       return TARGET_EXC_BREAKPOINT;
 462 #endif
 463
 464 #if defined (VKI_SIGINFO)
 465    if (hostsig == VKI_SIGINFO)
 466       return TARGET_SIGNAL_INFO;
 467 #endif
 468
 469 #if defined (VKI_SIGRTMIN)
 470    if (hostsig >= VKI_SIGRTMIN && hostsig < VKI_SIGRTMAX) {
 471       /* This block of TARGET_SIGNAL_REALTIME value is in order.  */
 472       if (33 <= hostsig && hostsig <= 63)
 473          return (enum target_signal)
 474             (hostsig - 33 + (int) TARGET_SIGNAL_REALTIME_33);
 475       else if (hostsig == 32)
 476          return TARGET_SIGNAL_REALTIME_32;
 477       else if (64 <= hostsig && hostsig <= 127)
 478          return (enum target_signal)
 479             (hostsig - 64 + (int) TARGET_SIGNAL_REALTIME_64);
 480    }
 481 #endif
 482
 483    error ("Valgrind GDBSERVER bug: (target_signal_from_host):"
 484           " unrecognized vki signal %d\n", hostsig);
 485    return TARGET_SIGNAL_UNKNOWN;
 486 }
 487
 488 /* Convert a OURSIG (an enum target_signal) to the form used by the
 489    target operating system (refered to as the ``host'') or zero if the
 490    equivalent host signal is not available.  Set/clear OURSIG_OK
 491    accordingly. */
 492
 493 static
 494 int do_target_signal_to_host (enum target_signal oursig,
 495                               int *oursig_ok)
 496 {
 497    *oursig_ok = 1;
 498    switch (oursig) {
 499    case TARGET_SIGNAL_0:
 500       return 0;
 501
 502 #if defined (VKI_SIGHUP)
 503    case TARGET_SIGNAL_HUP:
 504       return VKI_SIGHUP;
 505 #endif
 506 #if defined (VKI_SIGINT)
 507    case TARGET_SIGNAL_INT:
 508       return VKI_SIGINT;
 509 #endif
 510 #if defined (VKI_SIGQUIT)
 511    case TARGET_SIGNAL_QUIT:
 512       return VKI_SIGQUIT;
 513 #endif
 514 #if defined (VKI_SIGILL)
 515    case TARGET_SIGNAL_ILL:
 516       return VKI_SIGILL;
 517 #endif
 518 #if defined (VKI_SIGTRAP)
 519    case TARGET_SIGNAL_TRAP:
 520       return VKI_SIGTRAP;
 521 #endif
 522 #if defined (VKI_SIGABRT)
 523    case TARGET_SIGNAL_ABRT:
 524       return VKI_SIGABRT;
 525 #endif
 526 #if defined (VKI_SIGEMT)
 527    case TARGET_SIGNAL_EMT:
 528       return VKI_SIGEMT;
 529 #endif
 530 #if defined (VKI_SIGFPE)
 531    case TARGET_SIGNAL_FPE:
 532       return VKI_SIGFPE;
 533 #endif
 534 #if defined (VKI_SIGKILL)
 535    case TARGET_SIGNAL_KILL:
 536       return VKI_SIGKILL;
 537 #endif
 538 #if defined (VKI_SIGBUS)
 539    case TARGET_SIGNAL_BUS:
 540       return VKI_SIGBUS;
 541 #endif
 542 #if defined (VKI_SIGSEGV)
 543    case TARGET_SIGNAL_SEGV:
 544       return VKI_SIGSEGV;
 545 #endif
 546 #if defined (VKI_SIGSYS)
 547    case TARGET_SIGNAL_SYS:
 548       return VKI_SIGSYS;
 549 #endif
 550 #if defined (VKI_SIGPIPE)
 551    case TARGET_SIGNAL_PIPE:
 552       return VKI_SIGPIPE;
 553 #endif
 554 #if defined (VKI_SIGALRM)
 555    case TARGET_SIGNAL_ALRM:
 556       return VKI_SIGALRM;
 557 #endif
 558 #if defined (VKI_SIGTERM)
 559    case TARGET_SIGNAL_TERM:
 560       return VKI_SIGTERM;
 561 #endif
 562 #if defined (VKI_SIGUSR1)
 563    case TARGET_SIGNAL_USR1:
 564       return VKI_SIGUSR1;
 565 #endif
 566 #if defined (VKI_SIGUSR2)
 567    case TARGET_SIGNAL_USR2:
 568       return VKI_SIGUSR2;
 569 #endif
 570 #if defined (VKI_SIGCHLD) || defined (VKI_SIGCLD)
 571    case TARGET_SIGNAL_CHLD:
 572 #if defined (VKI_SIGCHLD)
 573       return VKI_SIGCHLD;
 574 #else
 575       return VKI_SIGCLD;
 576 #endif
 577 #endif /* SIGCLD or SIGCHLD */
 578 #if defined (VKI_SIGPWR)
 579    case TARGET_SIGNAL_PWR:
 580       return VKI_SIGPWR;
 581 #endif
 582 #if defined (VKI_SIGWINCH)
 583    case TARGET_SIGNAL_WINCH:
 584       return VKI_SIGWINCH;
 585 #endif
 586 #if defined (VKI_SIGURG)
 587    case TARGET_SIGNAL_URG:
 588       return VKI_SIGURG;
 589 #endif
 590 #if defined (VKI_SIGIO)
 591    case TARGET_SIGNAL_IO:
 592       return VKI_SIGIO;
 593 #endif
 594 #if defined (VKI_SIGPOLL)
 595    case TARGET_SIGNAL_POLL:
 596       return VKI_SIGPOLL;
 597 #endif
 598 #if defined (VKI_SIGSTOP)
 599    case TARGET_SIGNAL_STOP:
 600       return VKI_SIGSTOP;
 601 #endif
 602 #if defined (VKI_SIGTSTP)
 603    case TARGET_SIGNAL_TSTP:
 604       return VKI_SIGTSTP;
 605 #endif
 606 #if defined (VKI_SIGCONT)
 607    case TARGET_SIGNAL_CONT:
 608       return VKI_SIGCONT;
 609 #endif
 610 #if defined (VKI_SIGTTIN)
 611    case TARGET_SIGNAL_TTIN:
 612       return VKI_SIGTTIN;
 613 #endif
 614 #if defined (VKI_SIGTTOU)
 615    case TARGET_SIGNAL_TTOU:
 616       return VKI_SIGTTOU;
 617 #endif
 618 #if defined (VKI_SIGVTALRM)
 619    case TARGET_SIGNAL_VTALRM:
 620       return VKI_SIGVTALRM;
 621 #endif
 622 #if defined (VKI_SIGPROF)
 623    case TARGET_SIGNAL_PROF:
 624       return VKI_SIGPROF;
 625 #endif
 626 #if defined (VKI_SIGXCPU)
 627    case TARGET_SIGNAL_XCPU:
 628       return VKI_SIGXCPU;
 629 #endif
 630 #if defined (VKI_SIGXFSZ)
 631    case TARGET_SIGNAL_XFSZ:
 632       return VKI_SIGXFSZ;
 633 #endif
 634 #if defined (VKI_SIGWIND)
 635    case TARGET_SIGNAL_WIND:
 636       return VKI_SIGWIND;
 637 #endif
 638 #if defined (VKI_SIGPHONE)
 639    case TARGET_SIGNAL_PHONE:
 640       return VKI_SIGPHONE;
 641 #endif
 642 #if defined (VKI_SIGLOST)
 643    case TARGET_SIGNAL_LOST:
 644       return VKI_SIGLOST;
 645 #endif
 646 #if defined (VKI_SIGWAITING)
 647    case TARGET_SIGNAL_WAITING:
 648       return VKI_SIGWAITING;
 649 #endif
 650 #if defined (VKI_SIGCANCEL)
 651    case TARGET_SIGNAL_CANCEL:
 652       return VKI_SIGCANCEL;
 653 #endif
 654 #if defined (VKI_SIGLWP)
 655    case TARGET_SIGNAL_LWP:
 656       return VKI_SIGLWP;
 657 #endif
 658 #if defined (VKI_SIGDANGER)
 659    case TARGET_SIGNAL_DANGER:
 660       return VKI_SIGDANGER;
 661 #endif
 662 #if defined (VKI_SIGGRANT)
 663    case TARGET_SIGNAL_GRANT:
 664       return VKI_SIGGRANT;
 665 #endif
 666 #if defined (VKI_SIGRETRACT)
 667    case TARGET_SIGNAL_RETRACT:
 668       return VKI_SIGRETRACT;
 669 #endif
 670 #if defined (VKI_SIGMSG)
 671    case TARGET_SIGNAL_MSG:
 672       return VKI_SIGMSG;
 673 #endif
 674 #if defined (VKI_SIGSOUND)
 675    case TARGET_SIGNAL_SOUND:
 676       return VKI_SIGSOUND;
 677 #endif
 678 #if defined (VKI_SIGSAK)
 679    case TARGET_SIGNAL_SAK:
 680       return VKI_SIGSAK;
 681 #endif
 682 #if defined (VKI_SIGPRIO)
 683    case TARGET_SIGNAL_PRIO:
 684       return VKI_SIGPRIO;
 685 #endif
 686
 687       /* Mach exceptions.  Assumes that the values for EXC_ are positive! */
 688 #if defined (EXC_BAD_ACCESS) && defined (_NSIG)
 689    case TARGET_EXC_BAD_ACCESS:
 690       return _NSIG + EXC_BAD_ACCESS;
 691 #endif
 692 #if defined (EXC_BAD_INSTRUCTION) && defined (_NSIG)
 693    case TARGET_EXC_BAD_INSTRUCTION:
 694       return _NSIG + EXC_BAD_INSTRUCTION;
 695 #endif
 696 #if defined (EXC_ARITHMETIC) && defined (_NSIG)
 697    case TARGET_EXC_ARITHMETIC:
 698       return _NSIG + EXC_ARITHMETIC;
 699 #endif
 700 #if defined (EXC_EMULATION) && defined (_NSIG)
 701    case TARGET_EXC_EMULATION:
 702       return _NSIG + EXC_EMULATION;
 703 #endif
 704 #if defined (EXC_SOFTWARE) && defined (_NSIG)
 705    case TARGET_EXC_SOFTWARE:
 706       return _NSIG + EXC_SOFTWARE;
 707 #endif
 708 #if defined (EXC_BREAKPOINT) && defined (_NSIG)
 709    case TARGET_EXC_BREAKPOINT:
 710       return _NSIG + EXC_BREAKPOINT;
 711 #endif
 712
 713 #if defined (VKI_SIGINFO)
 714    case TARGET_SIGNAL_INFO:
 715       return VKI_SIGINFO;
 716 #endif
 717
 718    default:
 719 #if defined (VKI_SIGRTMIN)
 720       {
 721          int retsig = 0;
 722
 723          if (oursig >= TARGET_SIGNAL_REALTIME_33
 724              && oursig <= TARGET_SIGNAL_REALTIME_63) {
 725             /* This block of signals is continuous, and
 726                TARGET_SIGNAL_REALTIME_33 is 33 by definition.  */
 727             retsig = (int) oursig - (int) TARGET_SIGNAL_REALTIME_33 + 33;
 728          } else if (oursig == TARGET_SIGNAL_REALTIME_32) {
 729             /* TARGET_SIGNAL_REALTIME_32 isn't contiguous with
 730                TARGET_SIGNAL_REALTIME_33.  It is 32 by definition.  */
 731             retsig = 32;
 732          } else if (oursig >= TARGET_SIGNAL_REALTIME_64
 733                     && oursig <= TARGET_SIGNAL_REALTIME_127) {
 734             /* This block of signals is continuous, and
 735                TARGET_SIGNAL_REALTIME_64 is 64 by definition.  */
 736             retsig = (int) oursig - (int) TARGET_SIGNAL_REALTIME_64 + 64;
 737          }
 738
 739          if (retsig >= VKI_SIGRTMIN && retsig < VKI_SIGRTMAX)
 740             return retsig;
 741       }
 742 #endif
 743       error ("Valgrind GDBSERVER bug: (do_target_signal_to_host):"
 744              " unrecognized target signal %d\n", oursig);
 745       *oursig_ok = 0;
 746       return 0;
 747    }
 748 }
 749
 750 int target_signal_to_host_p (enum target_signal oursig)
 751 {
 752    int oursig_ok;
 753    do_target_signal_to_host (oursig, &oursig_ok);
 754    return oursig_ok;
 755 }
 756
 757 int target_signal_to_host (enum target_signal oursig)
 758 {
 759    int oursig_ok;
 760    int targ_signo = do_target_signal_to_host (oursig, &oursig_ok);
 761    if (!oursig_ok) {
 762       /* The user might be trying to do "signal SIGSAK" where this system
 763          doesn't have SIGSAK.  */
 764       warning ("Signal %s does not exist on this system.\n",
 765                target_signal_to_name (oursig));
 766       return 0;
 767    } else {
 768       return targ_signo;
 769    }
 770 }
 771
 772 /* In some circumstances we allow a command to specify a numeric
 773    signal.  The idea is to keep these circumstances limited so that
 774    users (and scripts) develop portable habits.  For comparison,
 775    POSIX.2 `kill' requires that 1,2,3,6,9,14, and 15 work (and using a
 776    numeric signal at all is obsolescent.  We are slightly more
 777    lenient and allow 1-15 which should match host signal numbers on
 778    most systems.  Use of symbolic signal names is strongly encouraged.  */
 779
 780 enum target_signal target_signal_from_command (int num)
 781 {
 782    if (num >= 1 && num <= 15)
 783       return (enum target_signal) num;
 784    error ("Only signals 1-15 are valid as numeric signals.\n\
 785 Use \"info signals\" for a list of symbolic signals.\n");
 786 }