1 /* Select target systems and architectures at runtime for GDB.
2 Copyright 1990, 1992, 1993, 1994 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 2 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, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
37 target_info PARAMS ((char *, int));
40 cleanup_target PARAMS ((struct target_ops *));
43 maybe_kill_then_create_inferior PARAMS ((char *, char *, char **));
46 maybe_kill_then_attach PARAMS ((char *, int));
49 kill_or_be_killed PARAMS ((int));
52 default_terminal_info PARAMS ((char *, int));
55 nosymbol PARAMS ((char *, CORE_ADDR *));
58 tcomplain PARAMS ((void));
61 nomemory PARAMS ((CORE_ADDR, char *, int, int, struct target_ops *));
64 return_zero PARAMS ((void));
67 ignore PARAMS ((void));
70 target_command PARAMS ((char *, int));
72 static struct target_ops *
73 find_default_run_target PARAMS ((char *));
75 /* Pointer to array of target architecture structures; the size of the
76 array; the current index into the array; the allocated size of the
78 struct target_ops **target_structs;
79 unsigned target_struct_size;
80 unsigned target_struct_index;
81 unsigned target_struct_allocsize;
82 #define DEFAULT_ALLOCSIZE 10
84 /* The initial current target, so that there is always a semi-valid
87 struct target_ops dummy_target = {"None", "None", "",
88 0, 0, /* open, close */
89 find_default_attach, 0, /* attach, detach */
90 0, 0, /* resume, wait */
91 0, 0, 0, /* registers */
94 0, 0, 0, 0, 0, /* terminal */
95 0, 0, /* kill, load */
96 0, /* lookup_symbol */
97 find_default_create_inferior, /* create_inferior */
98 0, /* mourn_inferior */
100 0, /* notice_signals */
101 dummy_stratum, 0, /* stratum, next */
102 0, 0, 0, 0, 0, /* all mem, mem, stack, regs, exec */
103 0, 0, /* section pointers */
107 /* Top of target stack. */
109 struct target_stack_item *target_stack;
111 /* The target structure we are currently using to talk to a process
112 or file or whatever "inferior" we have. */
114 struct target_ops current_target;
116 /* Command list for target. */
118 static struct cmd_list_element *targetlist = NULL;
120 /* Nonzero if we are debugging an attached outside process
121 rather than an inferior. */
125 /* The user just typed 'target' without the name of a target. */
129 target_command (arg, from_tty)
133 fputs_filtered ("Argument required (target name). Try `help target'\n",
137 /* Add a possible target architecture to the list. */
141 struct target_ops *t;
145 target_struct_allocsize = DEFAULT_ALLOCSIZE;
146 target_structs = (struct target_ops **) xmalloc
147 (target_struct_allocsize * sizeof (*target_structs));
149 if (target_struct_size >= target_struct_allocsize)
151 target_struct_allocsize *= 2;
152 target_structs = (struct target_ops **)
153 xrealloc ((char *) target_structs,
154 target_struct_allocsize * sizeof (*target_structs));
156 target_structs[target_struct_size++] = t;
159 if (targetlist == NULL)
160 add_prefix_cmd ("target", class_run, target_command,
161 "Connect to a target machine or process.\n\
162 The first argument is the type or protocol of the target machine.\n\
163 Remaining arguments are interpreted by the target protocol. For more\n\
164 information on the arguments for a particular protocol, type\n\
165 `help target ' followed by the protocol name.",
166 &targetlist, "target ", 0, &cmdlist);
167 add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, &targetlist);
179 nomemory (memaddr, myaddr, len, write, t)
184 struct target_ops *t;
186 errno = EIO; /* Can't read/write this location */
187 return 0; /* No bytes handled */
193 error ("You can't do that when your target is `%s'",
194 current_target.to_shortname);
200 error ("You can't do that without a process to debug");
205 nosymbol (name, addrp)
209 return 1; /* Symbol does not exist in target env */
214 default_terminal_info (args, from_tty)
218 printf_unfiltered("No saved terminal information.\n");
221 /* This is the default target_create_inferior and target_attach function.
222 If the current target is executing, it asks whether to kill it off.
223 If this function returns without calling error(), it has killed off
224 the target, and the operation should be attempted. */
227 kill_or_be_killed (from_tty)
230 if (target_has_execution)
232 printf_unfiltered ("You are already running a program:\n");
233 target_files_info ();
234 if (query ("Kill it? ")) {
236 if (target_has_execution)
237 error ("Killing the program did not help.");
240 error ("Program not killed.");
247 maybe_kill_then_attach (args, from_tty)
251 kill_or_be_killed (from_tty);
252 target_attach (args, from_tty);
256 maybe_kill_then_create_inferior (exec, args, env)
261 kill_or_be_killed (0);
262 target_create_inferior (exec, args, env);
265 /* Clean up a target struct so it no longer has any zero pointers in it.
266 We default entries, at least to stubs that print error messages. */
270 struct target_ops *t;
273 #define de_fault(field, value) \
274 if (!t->field) t->field = value
276 /* FIELD DEFAULT VALUE */
278 de_fault (to_open, (void (*)())tcomplain);
279 de_fault (to_close, (void (*)())ignore);
280 de_fault (to_attach, maybe_kill_then_attach);
281 de_fault (to_detach, (void (*)())ignore);
282 de_fault (to_resume, (void (*)())noprocess);
283 de_fault (to_wait, (int (*)())noprocess);
284 de_fault (to_fetch_registers, (void (*)())ignore);
285 de_fault (to_store_registers, (void (*)())noprocess);
286 de_fault (to_prepare_to_store, (void (*)())noprocess);
287 de_fault (to_xfer_memory, (int (*)())nomemory);
288 de_fault (to_files_info, (void (*)())ignore);
289 de_fault (to_insert_breakpoint, memory_insert_breakpoint);
290 de_fault (to_remove_breakpoint, memory_remove_breakpoint);
291 de_fault (to_terminal_init, ignore);
292 de_fault (to_terminal_inferior, ignore);
293 de_fault (to_terminal_ours_for_output,ignore);
294 de_fault (to_terminal_ours, ignore);
295 de_fault (to_terminal_info, default_terminal_info);
296 de_fault (to_kill, (void (*)())noprocess);
297 de_fault (to_load, (void (*)())tcomplain);
298 de_fault (to_lookup_symbol, nosymbol);
299 de_fault (to_create_inferior, maybe_kill_then_create_inferior);
300 de_fault (to_mourn_inferior, (void (*)())noprocess);
301 de_fault (to_can_run, return_zero);
302 de_fault (to_notice_signals, (void (*)())ignore);
307 /* Go through the target stack from top to bottom, copying over zero entries in
308 current_target. In effect, we are doing class inheritance through the
309 pushed target vectors. */
312 update_current_target ()
314 struct target_stack_item *item;
315 struct target_ops *t;
317 /* First, reset current_target */
318 memset (¤t_target, 0, sizeof current_target);
320 for (item = target_stack; item; item = item->next)
322 t = item->target_ops;
324 #define INHERIT(FIELD, TARGET) \
325 if (!current_target.FIELD) \
326 current_target.FIELD = TARGET->FIELD
328 INHERIT (to_shortname, t);
329 INHERIT (to_longname, t);
331 INHERIT (to_open, t);
332 INHERIT (to_close, t);
333 INHERIT (to_attach, t);
334 INHERIT (to_detach, t);
335 INHERIT (to_resume, t);
336 INHERIT (to_wait, t);
337 INHERIT (to_fetch_registers, t);
338 INHERIT (to_store_registers, t);
339 INHERIT (to_prepare_to_store, t);
340 INHERIT (to_xfer_memory, t);
341 INHERIT (to_files_info, t);
342 INHERIT (to_insert_breakpoint, t);
343 INHERIT (to_remove_breakpoint, t);
344 INHERIT (to_terminal_init, t);
345 INHERIT (to_terminal_inferior, t);
346 INHERIT (to_terminal_ours_for_output, t);
347 INHERIT (to_terminal_ours, t);
348 INHERIT (to_terminal_info, t);
349 INHERIT (to_kill, t);
350 INHERIT (to_load, t);
351 INHERIT (to_lookup_symbol, t);
352 INHERIT (to_create_inferior, t);
353 INHERIT (to_mourn_inferior, t);
354 INHERIT (to_can_run, t);
355 INHERIT (to_notice_signals, t);
356 INHERIT (to_stratum, t);
357 INHERIT (DONT_USE, t);
358 INHERIT (to_has_all_memory, t);
359 INHERIT (to_has_memory, t);
360 INHERIT (to_has_stack, t);
361 INHERIT (to_has_registers, t);
362 INHERIT (to_has_execution, t);
363 INHERIT (to_sections, t);
364 INHERIT (to_sections_end, t);
365 INHERIT (to_magic, t);
371 /* Push a new target type into the stack of the existing target accessors,
372 possibly superseding some of the existing accessors.
374 Result is zero if the pushed target ended up on top of the stack,
375 nonzero if at least one target is on top of it.
377 Rather than allow an empty stack, we always have the dummy target at
378 the bottom stratum, so we can call the function vectors without
383 struct target_ops *t;
385 struct target_stack_item *cur, *prev, *tmp;
387 /* Check magic number. If wrong, it probably means someone changed
388 the struct definition, but not all the places that initialize one. */
389 if (t->to_magic != OPS_MAGIC)
391 fprintf_unfiltered(gdb_stderr,
392 "Magic number of %s target struct wrong\n",
397 /* Find the proper stratum to install this target in. */
399 for (prev = NULL, cur = target_stack; cur; prev = cur, cur = cur->next)
401 if ((int)(t->to_stratum) >= (int)(cur->target_ops->to_stratum))
405 /* If there's already targets at this stratum, remove them. */
408 while (t->to_stratum == cur->target_ops->to_stratum)
410 /* There's already something on this stratum. Close it off. */
411 (cur->target_ops->to_close) (0);
413 prev->next = cur->next; /* Unchain old target_ops */
415 target_stack = cur->next; /* Unchain first on list */
421 /* We have removed all targets in our stratum, now add the new one. */
423 tmp = xmalloc (sizeof (struct target_stack_item));
432 update_current_target ();
434 cleanup_target (¤t_target); /* Fill in the gaps */
438 /* Remove a target_ops vector from the stack, wherever it may be.
439 Return how many times it was removed (0 or 1). */
443 struct target_ops *t;
445 struct target_stack_item *cur, *prev;
447 t->to_close (0); /* Let it clean up */
449 /* Look for the specified target. Note that we assume that a target
450 can only occur once in the target stack. */
452 for (cur = target_stack, prev = NULL; cur; prev = cur, cur = cur->next)
453 if (cur->target_ops == t)
457 return 0; /* Didn't find target_ops, quit now */
459 /* Unchain the target */
462 target_stack = cur->next;
464 prev->next = cur->next;
466 free (cur); /* Release the target_stack_item */
468 update_current_target ();
469 cleanup_target (¤t_target);
477 (current_target.to_close)(0); /* Let it clean up */
478 if (unpush_target (target_stack->target_ops) == 1)
481 fprintf_unfiltered(gdb_stderr,
482 "pop_target couldn't find target %s\n",
483 current_target.to_shortname);
488 #define MIN(A, B) (((A) <= (B)) ? (A) : (B))
490 /* target_read_string -- read a null terminated string, up to LEN bytes,
491 from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful.
492 Set *STRING to a pointer to malloc'd memory containing the data; the caller
493 is responsible for freeing it. Return the number of bytes successfully
497 target_read_string (memaddr, string, len, errnop)
503 int tlen, origlen, offset, i;
507 int buffer_allocated;
509 unsigned int nbytes_read = 0;
511 /* Small for testing. */
512 buffer_allocated = 4;
513 buffer = xmalloc (buffer_allocated);
520 tlen = MIN (len, 4 - (memaddr & 3));
521 offset = memaddr & 3;
523 errcode = target_xfer_memory (memaddr & ~3, buf, 4, 0);
527 if (bufptr - buffer + tlen > buffer_allocated)
530 bytes = bufptr - buffer;
531 buffer_allocated *= 2;
532 buffer = xrealloc (buffer, buffer_allocated);
533 bufptr = buffer + bytes;
536 for (i = 0; i < tlen; i++)
538 *bufptr++ = buf[i + offset];
539 if (buf[i + offset] == '\000')
541 nbytes_read += i + 1;
558 /* Read LEN bytes of target memory at address MEMADDR, placing the results in
559 GDB's memory at MYADDR. Returns either 0 for success or an errno value
562 If an error occurs, no guarantee is made about the contents of the data at
563 MYADDR. In particular, the caller should not depend upon partial reads
564 filling the buffer with good data. There is no way for the caller to know
565 how much good data might have been transfered anyway. Callers that can
566 deal with partial reads should call target_read_memory_partial. */
569 target_read_memory (memaddr, myaddr, len)
574 return target_xfer_memory (memaddr, myaddr, len, 0);
577 /* Read LEN bytes of target memory at address MEMADDR, placing the results
578 in GDB's memory at MYADDR. Returns a count of the bytes actually read,
579 and optionally an errno value in the location pointed to by ERRNOPTR
580 if ERRNOPTR is non-null. */
583 target_read_memory_partial (memaddr, myaddr, len, errnoptr)
589 int nread; /* Number of bytes actually read. */
590 int errcode; /* Error from last read. */
592 /* First try a complete read. */
593 errcode = target_xfer_memory (memaddr, myaddr, len, 0);
601 /* Loop, reading one byte at a time until we get as much as we can. */
602 for (errcode = 0, nread = 0; len > 0 && errcode == 0; nread++, len--)
604 errcode = target_xfer_memory (memaddr++, myaddr++, 1, 0);
606 /* If an error, the last read was unsuccessful, so adjust count. */
612 if (errnoptr != NULL)
620 target_write_memory (memaddr, myaddr, len)
625 return target_xfer_memory (memaddr, myaddr, len, 1);
628 /* Move memory to or from the targets. Iterate until all of it has
629 been moved, if necessary. The top target gets priority; anything
630 it doesn't want, is offered to the next one down, etc. Note the
631 business with curlen: if an early target says "no, but I have a
632 boundary overlapping this xfer" then we shorten what we offer to
633 the subsequent targets so the early guy will get a chance at the
634 tail before the subsequent ones do.
636 Result is 0 or errno value. */
639 target_xfer_memory (memaddr, myaddr, len, write)
647 struct target_ops *t;
648 struct target_stack_item *item;
650 /* to_xfer_memory is not guaranteed to set errno, even when it returns
654 /* The quick case is that the top target does it all. */
655 res = current_target.to_xfer_memory
656 (memaddr, myaddr, len, write, ¤t_target);
662 /* If res <= 0 then we call it again in the loop. Ah well. */
666 curlen = len; /* Want to do it all */
667 for (item = target_stack; item; item = item->next)
669 t = item->target_ops;
671 res = t->to_xfer_memory (memaddr, myaddr, curlen, write, t);
673 break; /* Handled all or part of xfer */
674 if (t->to_has_all_memory)
680 /* If this address is for nonexistent memory,
681 read zeros if reading, or do nothing if writing. Return error. */
683 memset (myaddr, 0, len);
694 return 0; /* We managed to cover it all somehow. */
700 target_info (args, from_tty)
704 struct target_ops *t;
705 struct target_stack_item *item;
708 if (symfile_objfile != NULL)
709 printf_unfiltered ("Symbols from \"%s\".\n", symfile_objfile->name);
711 #ifdef FILES_INFO_HOOK
712 if (FILES_INFO_HOOK ())
716 for (item = target_stack; item; item = item->next)
718 t = item->target_ops;
720 if ((int)(t->to_stratum) <= (int)dummy_stratum)
723 printf_unfiltered("\tWhile running this, GDB does not access memory from...\n");
724 printf_unfiltered("%s:\n", t->to_longname);
725 (t->to_files_info)(t);
726 has_all_mem = t->to_has_all_memory;
730 /* This is to be called by the open routine before it does
734 target_preopen (from_tty)
739 if (target_has_execution)
741 if (query ("A program is being debugged already. Kill it? "))
744 error ("Program not killed.");
747 /* Calling target_kill may remove the target from the stack. But if
748 it doesn't (which seems like a win for UDI), remove it now. */
750 if (target_has_execution)
754 /* Detach a target after doing deferred register stores. */
757 target_detach (args, from_tty)
761 /* Handle any optimized stores to the inferior. */
762 #ifdef DO_DEFERRED_STORES
765 (current_target.to_detach) (args, from_tty);
769 target_link (modname, t_reloc)
773 if (STREQ(current_target.to_shortname, "rombug"))
775 (current_target.to_lookup_symbol) (modname, t_reloc);
777 error("Unable to link to %s and get relocation in rombug", modname);
780 *t_reloc = (CORE_ADDR)-1;
783 /* Look through the list of possible targets for a target that can
784 execute a run or attach command without any other data. This is
785 used to locate the default process stratum.
787 Result is always valid (error() is called for errors). */
789 static struct target_ops *
790 find_default_run_target (do_mesg)
793 struct target_ops **t;
794 struct target_ops *runable = NULL;
799 for (t = target_structs; t < target_structs + target_struct_size;
802 if (target_can_run(*t))
810 error ("Don't know how to %s. Try \"help target\".", do_mesg);
816 find_default_attach (args, from_tty)
820 struct target_ops *t;
822 t = find_default_run_target("attach");
823 (t->to_attach) (args, from_tty);
828 find_default_create_inferior (exec_file, allargs, env)
833 struct target_ops *t;
835 t = find_default_run_target("run");
836 (t->to_create_inferior) (exec_file, allargs, env);
849 struct target_ops **t;
850 struct target_ops *runable = NULL;
855 for (t = target_structs; t < target_structs + target_struct_size;
858 if ((*t)->to_stratum == core_stratum)
865 return(count == 1 ? runable : NULL);
868 /* The inferior process has died. Long live the inferior! */
871 generic_mourn_inferior ()
873 extern int show_breakpoint_hit_counts;
877 breakpoint_init_inferior ();
878 registers_changed ();
880 #ifdef CLEAR_DEFERRED_STORES
881 /* Delete any pending stores to the inferior... */
882 CLEAR_DEFERRED_STORES;
886 reinit_frame_cache ();
888 /* It is confusing to the user for ignore counts to stick around
889 from previous runs of the inferior. So clear them. */
890 /* However, it is more confusing for the ignore counts to disappear when
891 using hit counts. So don't clear them if we're counting hits. */
892 if (!show_breakpoint_hit_counts)
893 breakpoint_clear_ignore_counts ();
896 /* This table must match in order and size the signals in enum target_signal
904 {"SIGHUP", "Hangup"},
905 {"SIGINT", "Interrupt"},
907 {"SIGILL", "Illegal instruction"},
908 {"SIGTRAP", "Trace/breakpoint trap"},
909 {"SIGABRT", "Aborted"},
910 {"SIGEMT", "Emulation trap"},
911 {"SIGFPE", "Arithmetic exception"},
912 {"SIGKILL", "Killed"},
913 {"SIGBUS", "Bus error"},
914 {"SIGSEGV", "Segmentation fault"},
915 {"SIGSYS", "Bad system call"},
916 {"SIGPIPE", "Broken pipe"},
917 {"SIGALRM", "Alarm clock"},
918 {"SIGTERM", "Terminated"},
919 {"SIGURG", "Urgent I/O condition"},
920 {"SIGSTOP", "Stopped (signal)"},
921 {"SIGTSTP", "Stopped (user)"},
922 {"SIGCONT", "Continued"},
923 {"SIGCHLD", "Child status changed"},
924 {"SIGTTIN", "Stopped (tty input)"},
925 {"SIGTTOU", "Stopped (tty output)"},
926 {"SIGIO", "I/O possible"},
927 {"SIGXCPU", "CPU time limit exceeded"},
928 {"SIGXFSZ", "File size limit exceeded"},
929 {"SIGVTALRM", "Virtual timer expired"},
930 {"SIGPROF", "Profiling timer expired"},
931 {"SIGWINCH", "Window size changed"},
932 {"SIGLOST", "Resource lost"},
933 {"SIGUSR1", "User defined signal 1"},
934 {"SIGUSR2", "User defined signal 2"},
935 {"SIGPWR", "Power fail/restart"},
936 {"SIGPOLL", "Pollable event occurred"},
937 {"SIGWIND", "SIGWIND"},
938 {"SIGPHONE", "SIGPHONE"},
939 {"SIGWAITING", "Process's LWPs are blocked"},
940 {"SIGLWP", "Signal LWP"},
941 {"SIGDANGER", "Swap space dangerously low"},
942 {"SIGGRANT", "Monitor mode granted"},
943 {"SIGRETRACT", "Need to relinguish monitor mode"},
944 {"SIGMSG", "Monitor mode data available"},
945 {"SIGSOUND", "Sound completed"},
946 {"SIGSAK", "Secure attention"},
947 {NULL, "Unknown signal"},
948 {NULL, "Internal error: printing TARGET_SIGNAL_DEFAULT"},
950 /* Last entry, used to check whether the table is the right size. */
951 {NULL, "TARGET_SIGNAL_MAGIC"}
954 /* Return the string for a signal. */
956 target_signal_to_string (sig)
957 enum target_signal sig;
959 return signals[sig].string;
962 /* Return the name for a signal. */
964 target_signal_to_name (sig)
965 enum target_signal sig;
967 if (sig == TARGET_SIGNAL_UNKNOWN)
968 /* I think the code which prints this will always print it along with
969 the string, so no need to be verbose. */
971 return signals[sig].name;
974 /* Given a name, return its signal. */
976 target_signal_from_name (name)
979 enum target_signal sig;
981 /* It's possible we also should allow "SIGCLD" as well as "SIGCHLD"
982 for TARGET_SIGNAL_SIGCHLD. SIGIOT, on the other hand, is more
983 questionable; seems like by now people should call it SIGABRT
986 /* This ugly cast brought to you by the native VAX compiler. */
987 for (sig = TARGET_SIGNAL_HUP;
988 signals[sig].name != NULL;
989 sig = (enum target_signal)((int)sig + 1))
990 if (STREQ (name, signals[sig].name))
992 return TARGET_SIGNAL_UNKNOWN;
995 /* The following functions are to help certain targets deal
996 with the signal/waitstatus stuff. They could just as well be in
997 a file called native-utils.c or unixwaitstatus-utils.c or whatever. */
999 /* Convert host signal to our signals. */
1001 target_signal_from_host (hostsig)
1004 /* A switch statement would make sense but would require special kludges
1005 to deal with the cases where more than one signal has the same number. */
1007 if (hostsig == 0) return TARGET_SIGNAL_0;
1009 #if defined (SIGHUP)
1010 if (hostsig == SIGHUP) return TARGET_SIGNAL_HUP;
1012 #if defined (SIGINT)
1013 if (hostsig == SIGINT) return TARGET_SIGNAL_INT;
1015 #if defined (SIGQUIT)
1016 if (hostsig == SIGQUIT) return TARGET_SIGNAL_QUIT;
1018 #if defined (SIGILL)
1019 if (hostsig == SIGILL) return TARGET_SIGNAL_ILL;
1021 #if defined (SIGTRAP)
1022 if (hostsig == SIGTRAP) return TARGET_SIGNAL_TRAP;
1024 #if defined (SIGABRT)
1025 if (hostsig == SIGABRT) return TARGET_SIGNAL_ABRT;
1027 #if defined (SIGEMT)
1028 if (hostsig == SIGEMT) return TARGET_SIGNAL_EMT;
1030 #if defined (SIGFPE)
1031 if (hostsig == SIGFPE) return TARGET_SIGNAL_FPE;
1033 #if defined (SIGKILL)
1034 if (hostsig == SIGKILL) return TARGET_SIGNAL_KILL;
1036 #if defined (SIGBUS)
1037 if (hostsig == SIGBUS) return TARGET_SIGNAL_BUS;
1039 #if defined (SIGSEGV)
1040 if (hostsig == SIGSEGV) return TARGET_SIGNAL_SEGV;
1042 #if defined (SIGSYS)
1043 if (hostsig == SIGSYS) return TARGET_SIGNAL_SYS;
1045 #if defined (SIGPIPE)
1046 if (hostsig == SIGPIPE) return TARGET_SIGNAL_PIPE;
1048 #if defined (SIGALRM)
1049 if (hostsig == SIGALRM) return TARGET_SIGNAL_ALRM;
1051 #if defined (SIGTERM)
1052 if (hostsig == SIGTERM) return TARGET_SIGNAL_TERM;
1054 #if defined (SIGUSR1)
1055 if (hostsig == SIGUSR1) return TARGET_SIGNAL_USR1;
1057 #if defined (SIGUSR2)
1058 if (hostsig == SIGUSR2) return TARGET_SIGNAL_USR2;
1060 #if defined (SIGCLD)
1061 if (hostsig == SIGCLD) return TARGET_SIGNAL_CHLD;
1063 #if defined (SIGCHLD)
1064 if (hostsig == SIGCHLD) return TARGET_SIGNAL_CHLD;
1066 #if defined (SIGPWR)
1067 if (hostsig == SIGPWR) return TARGET_SIGNAL_PWR;
1069 #if defined (SIGWINCH)
1070 if (hostsig == SIGWINCH) return TARGET_SIGNAL_WINCH;
1072 #if defined (SIGURG)
1073 if (hostsig == SIGURG) return TARGET_SIGNAL_URG;
1076 if (hostsig == SIGIO) return TARGET_SIGNAL_IO;
1078 #if defined (SIGPOLL)
1079 if (hostsig == SIGPOLL) return TARGET_SIGNAL_POLL;
1081 #if defined (SIGSTOP)
1082 if (hostsig == SIGSTOP) return TARGET_SIGNAL_STOP;
1084 #if defined (SIGTSTP)
1085 if (hostsig == SIGTSTP) return TARGET_SIGNAL_TSTP;
1087 #if defined (SIGCONT)
1088 if (hostsig == SIGCONT) return TARGET_SIGNAL_CONT;
1090 #if defined (SIGTTIN)
1091 if (hostsig == SIGTTIN) return TARGET_SIGNAL_TTIN;
1093 #if defined (SIGTTOU)
1094 if (hostsig == SIGTTOU) return TARGET_SIGNAL_TTOU;
1096 #if defined (SIGVTALRM)
1097 if (hostsig == SIGVTALRM) return TARGET_SIGNAL_VTALRM;
1099 #if defined (SIGPROF)
1100 if (hostsig == SIGPROF) return TARGET_SIGNAL_PROF;
1102 #if defined (SIGXCPU)
1103 if (hostsig == SIGXCPU) return TARGET_SIGNAL_XCPU;
1105 #if defined (SIGXFSZ)
1106 if (hostsig == SIGXFSZ) return TARGET_SIGNAL_XFSZ;
1108 #if defined (SIGWIND)
1109 if (hostsig == SIGWIND) return TARGET_SIGNAL_WIND;
1111 #if defined (SIGPHONE)
1112 if (hostsig == SIGPHONE) return TARGET_SIGNAL_PHONE;
1114 #if defined (SIGLOST)
1115 if (hostsig == SIGLOST) return TARGET_SIGNAL_LOST;
1117 #if defined (SIGWAITING)
1118 if (hostsig == SIGWAITING) return TARGET_SIGNAL_WAITING;
1120 #if defined (SIGLWP)
1121 if (hostsig == SIGLWP) return TARGET_SIGNAL_LWP;
1123 #if defined (SIGDANGER)
1124 if (hostsig == SIGDANGER) return TARGET_SIGNAL_DANGER;
1126 #if defined (SIGGRANT)
1127 if (hostsig == SIGGRANT) return TARGET_SIGNAL_GRANT;
1129 #if defined (SIGRETRACT)
1130 if (hostsig == SIGRETRACT) return TARGET_SIGNAL_RETRACT;
1132 #if defined (SIGMSG)
1133 if (hostsig == SIGMSG) return TARGET_SIGNAL_MSG;
1135 #if defined (SIGSOUND)
1136 if (hostsig == SIGSOUND) return TARGET_SIGNAL_SOUND;
1138 #if defined (SIGSAK)
1139 if (hostsig == SIGSAK) return TARGET_SIGNAL_SAK;
1141 return TARGET_SIGNAL_UNKNOWN;
1145 target_signal_to_host (oursig)
1146 enum target_signal oursig;
1150 case TARGET_SIGNAL_0: return 0;
1152 #if defined (SIGHUP)
1153 case TARGET_SIGNAL_HUP: return SIGHUP;
1155 #if defined (SIGINT)
1156 case TARGET_SIGNAL_INT: return SIGINT;
1158 #if defined (SIGQUIT)
1159 case TARGET_SIGNAL_QUIT: return SIGQUIT;
1161 #if defined (SIGILL)
1162 case TARGET_SIGNAL_ILL: return SIGILL;
1164 #if defined (SIGTRAP)
1165 case TARGET_SIGNAL_TRAP: return SIGTRAP;
1167 #if defined (SIGABRT)
1168 case TARGET_SIGNAL_ABRT: return SIGABRT;
1170 #if defined (SIGEMT)
1171 case TARGET_SIGNAL_EMT: return SIGEMT;
1173 #if defined (SIGFPE)
1174 case TARGET_SIGNAL_FPE: return SIGFPE;
1176 #if defined (SIGKILL)
1177 case TARGET_SIGNAL_KILL: return SIGKILL;
1179 #if defined (SIGBUS)
1180 case TARGET_SIGNAL_BUS: return SIGBUS;
1182 #if defined (SIGSEGV)
1183 case TARGET_SIGNAL_SEGV: return SIGSEGV;
1185 #if defined (SIGSYS)
1186 case TARGET_SIGNAL_SYS: return SIGSYS;
1188 #if defined (SIGPIPE)
1189 case TARGET_SIGNAL_PIPE: return SIGPIPE;
1191 #if defined (SIGALRM)
1192 case TARGET_SIGNAL_ALRM: return SIGALRM;
1194 #if defined (SIGTERM)
1195 case TARGET_SIGNAL_TERM: return SIGTERM;
1197 #if defined (SIGUSR1)
1198 case TARGET_SIGNAL_USR1: return SIGUSR1;
1200 #if defined (SIGUSR2)
1201 case TARGET_SIGNAL_USR2: return SIGUSR2;
1203 #if defined (SIGCHLD) || defined (SIGCLD)
1204 case TARGET_SIGNAL_CHLD:
1205 #if defined (SIGCHLD)
1210 #endif /* SIGCLD or SIGCHLD */
1211 #if defined (SIGPWR)
1212 case TARGET_SIGNAL_PWR: return SIGPWR;
1214 #if defined (SIGWINCH)
1215 case TARGET_SIGNAL_WINCH: return SIGWINCH;
1217 #if defined (SIGURG)
1218 case TARGET_SIGNAL_URG: return SIGURG;
1221 case TARGET_SIGNAL_IO: return SIGIO;
1223 #if defined (SIGPOLL)
1224 case TARGET_SIGNAL_POLL: return SIGPOLL;
1226 #if defined (SIGSTOP)
1227 case TARGET_SIGNAL_STOP: return SIGSTOP;
1229 #if defined (SIGTSTP)
1230 case TARGET_SIGNAL_TSTP: return SIGTSTP;
1232 #if defined (SIGCONT)
1233 case TARGET_SIGNAL_CONT: return SIGCONT;
1235 #if defined (SIGTTIN)
1236 case TARGET_SIGNAL_TTIN: return SIGTTIN;
1238 #if defined (SIGTTOU)
1239 case TARGET_SIGNAL_TTOU: return SIGTTOU;
1241 #if defined (SIGVTALRM)
1242 case TARGET_SIGNAL_VTALRM: return SIGVTALRM;
1244 #if defined (SIGPROF)
1245 case TARGET_SIGNAL_PROF: return SIGPROF;
1247 #if defined (SIGXCPU)
1248 case TARGET_SIGNAL_XCPU: return SIGXCPU;
1250 #if defined (SIGXFSZ)
1251 case TARGET_SIGNAL_XFSZ: return SIGXFSZ;
1253 #if defined (SIGWIND)
1254 case TARGET_SIGNAL_WIND: return SIGWIND;
1256 #if defined (SIGPHONE)
1257 case TARGET_SIGNAL_PHONE: return SIGPHONE;
1259 #if defined (SIGLOST)
1260 case TARGET_SIGNAL_LOST: return SIGLOST;
1262 #if defined (SIGWAITING)
1263 case TARGET_SIGNAL_WAITING: return SIGWAITING;
1265 #if defined (SIGLWP)
1266 case TARGET_SIGNAL_LWP: return SIGLWP;
1268 #if defined (SIGDANGER)
1269 case TARGET_SIGNAL_DANGER: return SIGDANGER;
1271 #if defined (SIGGRANT)
1272 case TARGET_SIGNAL_GRANT: return SIGGRANT;
1274 #if defined (SIGRETRACT)
1275 case TARGET_SIGNAL_RETRACT: return SIGRETRACT;
1277 #if defined (SIGMSG)
1278 case TARGET_SIGNAL_MSG: return SIGMSG;
1280 #if defined (SIGSOUND)
1281 case TARGET_SIGNAL_SOUND: return SIGSOUND;
1283 #if defined (SIGSAK)
1284 case TARGET_SIGNAL_SAK: return SIGSAK;
1287 /* The user might be trying to do "signal SIGSAK" where this system
1288 doesn't have SIGSAK. */
1289 warning ("Signal %s does not exist on this system.\n",
1290 target_signal_to_name (oursig));
1295 /* Helper function for child_wait and the Lynx derivatives of child_wait.
1296 HOSTSTATUS is the waitstatus from wait() or the equivalent; store our
1297 translation of that in OURSTATUS. */
1299 store_waitstatus (ourstatus, hoststatus)
1300 struct target_waitstatus *ourstatus;
1303 #ifdef CHILD_SPECIAL_WAITSTATUS
1304 /* CHILD_SPECIAL_WAITSTATUS should return nonzero and set *OURSTATUS
1305 if it wants to deal with hoststatus. */
1306 if (CHILD_SPECIAL_WAITSTATUS (ourstatus, hoststatus))
1310 if (WIFEXITED (hoststatus))
1312 ourstatus->kind = TARGET_WAITKIND_EXITED;
1313 ourstatus->value.integer = WEXITSTATUS (hoststatus);
1315 else if (!WIFSTOPPED (hoststatus))
1317 ourstatus->kind = TARGET_WAITKIND_SIGNALLED;
1318 ourstatus->value.sig = target_signal_from_host (WTERMSIG (hoststatus));
1322 ourstatus->kind = TARGET_WAITKIND_STOPPED;
1323 ourstatus->value.sig = target_signal_from_host (WSTOPSIG (hoststatus));
1328 /* Returns zero to leave the inferior alone, one to interrupt it. */
1329 int (*target_activity_function) PARAMS ((void));
1330 int target_activity_fd;
1332 /* Convert a normal process ID to a string. Returns the string in a static
1336 normal_pid_to_str (pid)
1339 static char buf[30];
1341 sprintf (buf, "process %d", pid);
1346 static char targ_desc[] =
1347 "Names of targets and files being debugged.\n\
1348 Shows the entire stack of targets currently in use (including the exec-file,\n\
1349 core-file, and process, if any), as well as the symbol file name.";
1352 initialize_targets ()
1354 push_target (&dummy_target);
1356 add_info ("target", target_info, targ_desc);
1357 add_info ("files", target_info, targ_desc);
1359 if (!STREQ (signals[TARGET_SIGNAL_LAST].string, "TARGET_SIGNAL_MAGIC"))