1 /* Select target systems and architectures at runtime 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.
6 This file is part of GDB.
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.
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.
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. */
25 #include "gdb_string.h"
40 static void target_info (char *, int);
42 static void cleanup_target (struct target_ops *);
44 static void maybe_kill_then_create_inferior (char *, char *, char **);
46 static void default_clone_and_follow_inferior (int, int *);
48 static void maybe_kill_then_attach (char *, int);
50 static void kill_or_be_killed (int);
52 static void default_terminal_info (char *, int);
54 static int nosymbol (char *, CORE_ADDR *);
56 static void tcomplain (void);
58 static int nomemory (CORE_ADDR, char *, int, int, struct target_ops *);
60 static int return_zero (void);
62 static int return_one (void);
64 void target_ignore (void);
66 static void target_command (char *, int);
68 static struct target_ops *find_default_run_target (char *);
70 static void update_current_target (void);
72 static void nosupport_runtime (void);
74 static void normal_target_post_startup_inferior (ptid_t ptid);
76 /* Transfer LEN bytes between target address MEMADDR and GDB address
77 MYADDR. Returns 0 for success, errno code for failure (which
78 includes partial transfers -- if you want a more useful response to
79 partial transfers, try either target_read_memory_partial or
80 target_write_memory_partial). */
83 target_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write);
85 static void init_dummy_target (void);
87 static void debug_to_open (char *, int);
89 static void debug_to_close (int);
91 static void debug_to_attach (char *, int);
93 static void debug_to_detach (char *, int);
95 static void debug_to_resume (ptid_t, int, enum target_signal);
97 static ptid_t debug_to_wait (ptid_t, struct target_waitstatus *);
99 static void debug_to_fetch_registers (int);
101 static void debug_to_store_registers (int);
103 static void debug_to_prepare_to_store (void);
106 debug_to_xfer_memory (CORE_ADDR, char *, int, int, struct mem_attrib *,
107 struct target_ops *);
109 static void debug_to_files_info (struct target_ops *);
111 static int debug_to_insert_breakpoint (CORE_ADDR, char *);
113 static int debug_to_remove_breakpoint (CORE_ADDR, char *);
115 static void debug_to_terminal_init (void);
117 static void debug_to_terminal_inferior (void);
119 static void debug_to_terminal_ours_for_output (void);
121 static void debug_to_terminal_ours (void);
123 static void debug_to_terminal_info (char *, int);
125 static void debug_to_kill (void);
127 static void debug_to_load (char *, int);
129 static int debug_to_lookup_symbol (char *, CORE_ADDR *);
131 static void debug_to_create_inferior (char *, char *, char **);
133 static void debug_to_mourn_inferior (void);
135 static int debug_to_can_run (void);
137 static void debug_to_notice_signals (ptid_t);
139 static int debug_to_thread_alive (ptid_t);
141 static void debug_to_stop (void);
143 static int debug_to_query (int /*char */ , char *, char *, int *);
145 /* Pointer to array of target architecture structures; the size of the
146 array; the current index into the array; the allocated size of the
148 struct target_ops **target_structs;
149 unsigned target_struct_size;
150 unsigned target_struct_index;
151 unsigned target_struct_allocsize;
152 #define DEFAULT_ALLOCSIZE 10
154 /* The initial current target, so that there is always a semi-valid
157 static struct target_ops dummy_target;
159 /* Top of target stack. */
161 struct target_stack_item *target_stack;
163 /* The target structure we are currently using to talk to a process
164 or file or whatever "inferior" we have. */
166 struct target_ops current_target;
168 /* Command list for target. */
170 static struct cmd_list_element *targetlist = NULL;
172 /* Nonzero if we are debugging an attached outside process
173 rather than an inferior. */
177 /* Non-zero if we want to see trace of target level stuff. */
179 static int targetdebug = 0;
181 static void setup_target_debug (void);
183 DCACHE *target_dcache;
185 /* The user just typed 'target' without the name of a target. */
189 target_command (char *arg, int from_tty)
191 fputs_filtered ("Argument required (target name). Try `help target'\n",
195 /* Add a possible target architecture to the list. */
198 add_target (struct target_ops *t)
202 target_struct_allocsize = DEFAULT_ALLOCSIZE;
203 target_structs = (struct target_ops **) xmalloc
204 (target_struct_allocsize * sizeof (*target_structs));
206 if (target_struct_size >= target_struct_allocsize)
208 target_struct_allocsize *= 2;
209 target_structs = (struct target_ops **)
210 xrealloc ((char *) target_structs,
211 target_struct_allocsize * sizeof (*target_structs));
213 target_structs[target_struct_size++] = t;
214 /* cleanup_target (t); */
216 if (targetlist == NULL)
217 add_prefix_cmd ("target", class_run, target_command,
218 "Connect to a target machine or process.\n\
219 The first argument is the type or protocol of the target machine.\n\
220 Remaining arguments are interpreted by the target protocol. For more\n\
221 information on the arguments for a particular protocol, type\n\
222 `help target ' followed by the protocol name.",
223 &targetlist, "target ", 0, &cmdlist);
224 add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, &targetlist);
235 target_load (char *arg, int from_tty)
237 dcache_invalidate (target_dcache);
238 (*current_target.to_load) (arg, from_tty);
243 nomemory (CORE_ADDR memaddr, char *myaddr, int len, int write,
244 struct target_ops *t)
246 errno = EIO; /* Can't read/write this location */
247 return 0; /* No bytes handled */
253 error ("You can't do that when your target is `%s'",
254 current_target.to_shortname);
260 error ("You can't do that without a process to debug.");
265 nosymbol (char *name, CORE_ADDR *addrp)
267 return 1; /* Symbol does not exist in target env */
272 nosupport_runtime (void)
274 if (ptid_equal (inferior_ptid, null_ptid))
277 error ("No run-time support for this");
283 default_terminal_info (char *args, int from_tty)
285 printf_unfiltered ("No saved terminal information.\n");
288 /* This is the default target_create_inferior and target_attach function.
289 If the current target is executing, it asks whether to kill it off.
290 If this function returns without calling error(), it has killed off
291 the target, and the operation should be attempted. */
294 kill_or_be_killed (int from_tty)
296 if (target_has_execution)
298 printf_unfiltered ("You are already running a program:\n");
299 target_files_info ();
300 if (query ("Kill it? "))
303 if (target_has_execution)
304 error ("Killing the program did not help.");
309 error ("Program not killed.");
316 maybe_kill_then_attach (char *args, int from_tty)
318 kill_or_be_killed (from_tty);
319 target_attach (args, from_tty);
323 maybe_kill_then_create_inferior (char *exec, char *args, char **env)
325 kill_or_be_killed (0);
326 target_create_inferior (exec, args, env);
330 default_clone_and_follow_inferior (int child_pid, int *followed_child)
332 target_clone_and_follow_inferior (child_pid, followed_child);
335 /* Clean up a target struct so it no longer has any zero pointers in it.
336 We default entries, at least to stubs that print error messages. */
339 cleanup_target (struct target_ops *t)
342 #define de_fault(field, value) \
347 (void (*) (char *, int))
353 maybe_kill_then_attach);
354 de_fault (to_post_attach,
357 de_fault (to_require_attach,
358 maybe_kill_then_attach);
360 (void (*) (char *, int))
362 de_fault (to_require_detach,
363 (void (*) (int, char *, int))
366 (void (*) (ptid_t, int, enum target_signal))
369 (ptid_t (*) (ptid_t, struct target_waitstatus *))
371 de_fault (to_post_wait,
372 (void (*) (ptid_t, int))
374 de_fault (to_fetch_registers,
377 de_fault (to_store_registers,
380 de_fault (to_prepare_to_store,
383 de_fault (to_xfer_memory,
384 (int (*) (CORE_ADDR, char *, int, int, struct mem_attrib *, struct target_ops *))
386 de_fault (to_files_info,
387 (void (*) (struct target_ops *))
389 de_fault (to_insert_breakpoint,
390 memory_insert_breakpoint);
391 de_fault (to_remove_breakpoint,
392 memory_remove_breakpoint);
393 de_fault (to_terminal_init,
396 de_fault (to_terminal_inferior,
399 de_fault (to_terminal_ours_for_output,
402 de_fault (to_terminal_ours,
405 de_fault (to_terminal_info,
406 default_terminal_info);
411 (void (*) (char *, int))
413 de_fault (to_lookup_symbol,
414 (int (*) (char *, CORE_ADDR *))
416 de_fault (to_create_inferior,
417 maybe_kill_then_create_inferior);
418 de_fault (to_post_startup_inferior,
421 de_fault (to_acknowledge_created_inferior,
424 de_fault (to_clone_and_follow_inferior,
425 default_clone_and_follow_inferior);
426 de_fault (to_post_follow_inferior_by_clone,
429 de_fault (to_insert_fork_catchpoint,
432 de_fault (to_remove_fork_catchpoint,
435 de_fault (to_insert_vfork_catchpoint,
438 de_fault (to_remove_vfork_catchpoint,
441 de_fault (to_has_forked,
442 (int (*) (int, int *))
444 de_fault (to_has_vforked,
445 (int (*) (int, int *))
447 de_fault (to_can_follow_vfork_prior_to_exec,
450 de_fault (to_post_follow_vfork,
451 (void (*) (int, int, int, int))
453 de_fault (to_insert_exec_catchpoint,
456 de_fault (to_remove_exec_catchpoint,
459 de_fault (to_has_execd,
460 (int (*) (int, char **))
462 de_fault (to_reported_exec_events_per_exec_call,
465 de_fault (to_has_syscall_event,
466 (int (*) (int, enum target_waitkind *, int *))
468 de_fault (to_has_exited,
469 (int (*) (int, int, int *))
471 de_fault (to_mourn_inferior,
474 de_fault (to_can_run,
476 de_fault (to_notice_signals,
479 de_fault (to_thread_alive,
482 de_fault (to_find_new_threads,
485 de_fault (to_extra_thread_info,
486 (char *(*) (struct thread_info *))
492 (int (*) (int, char *, char *, int *))
495 (void (*) (char *, struct ui_file *))
497 de_fault (to_enable_exception_callback,
498 (struct symtab_and_line * (*) (enum exception_event_kind, int))
500 de_fault (to_get_current_exception_event,
501 (struct exception_event_record * (*) (void))
503 de_fault (to_pid_to_exec_file,
506 de_fault (to_can_async_p,
509 de_fault (to_is_async_p,
513 (void (*) (void (*) (enum inferior_event_type, void*), void*))
518 /* Go through the target stack from top to bottom, copying over zero entries in
519 current_target. In effect, we are doing class inheritance through the
520 pushed target vectors. */
523 update_current_target (void)
525 struct target_stack_item *item;
526 struct target_ops *t;
528 /* First, reset current_target */
529 memset (¤t_target, 0, sizeof current_target);
531 for (item = target_stack; item; item = item->next)
533 t = item->target_ops;
535 #define INHERIT(FIELD, TARGET) \
536 if (!current_target.FIELD) \
537 current_target.FIELD = TARGET->FIELD
539 INHERIT (to_shortname, t);
540 INHERIT (to_longname, t);
542 INHERIT (to_open, t);
543 INHERIT (to_close, t);
544 INHERIT (to_attach, t);
545 INHERIT (to_post_attach, t);
546 INHERIT (to_require_attach, t);
547 INHERIT (to_detach, t);
548 INHERIT (to_require_detach, t);
549 INHERIT (to_resume, t);
550 INHERIT (to_wait, t);
551 INHERIT (to_post_wait, t);
552 INHERIT (to_fetch_registers, t);
553 INHERIT (to_store_registers, t);
554 INHERIT (to_prepare_to_store, t);
555 INHERIT (to_xfer_memory, t);
556 INHERIT (to_files_info, t);
557 INHERIT (to_insert_breakpoint, t);
558 INHERIT (to_remove_breakpoint, t);
559 INHERIT (to_terminal_init, t);
560 INHERIT (to_terminal_inferior, t);
561 INHERIT (to_terminal_ours_for_output, t);
562 INHERIT (to_terminal_ours, t);
563 INHERIT (to_terminal_info, t);
564 INHERIT (to_kill, t);
565 INHERIT (to_load, t);
566 INHERIT (to_lookup_symbol, t);
567 INHERIT (to_create_inferior, t);
568 INHERIT (to_post_startup_inferior, t);
569 INHERIT (to_acknowledge_created_inferior, t);
570 INHERIT (to_clone_and_follow_inferior, t);
571 INHERIT (to_post_follow_inferior_by_clone, t);
572 INHERIT (to_insert_fork_catchpoint, t);
573 INHERIT (to_remove_fork_catchpoint, t);
574 INHERIT (to_insert_vfork_catchpoint, t);
575 INHERIT (to_remove_vfork_catchpoint, t);
576 INHERIT (to_has_forked, t);
577 INHERIT (to_has_vforked, t);
578 INHERIT (to_can_follow_vfork_prior_to_exec, t);
579 INHERIT (to_post_follow_vfork, t);
580 INHERIT (to_insert_exec_catchpoint, t);
581 INHERIT (to_remove_exec_catchpoint, t);
582 INHERIT (to_has_execd, t);
583 INHERIT (to_reported_exec_events_per_exec_call, t);
584 INHERIT (to_has_syscall_event, t);
585 INHERIT (to_has_exited, t);
586 INHERIT (to_mourn_inferior, t);
587 INHERIT (to_can_run, t);
588 INHERIT (to_notice_signals, t);
589 INHERIT (to_thread_alive, t);
590 INHERIT (to_find_new_threads, t);
591 INHERIT (to_pid_to_str, t);
592 INHERIT (to_extra_thread_info, t);
593 INHERIT (to_stop, t);
594 INHERIT (to_query, t);
595 INHERIT (to_rcmd, t);
596 INHERIT (to_enable_exception_callback, t);
597 INHERIT (to_get_current_exception_event, t);
598 INHERIT (to_pid_to_exec_file, t);
599 INHERIT (to_stratum, t);
600 INHERIT (DONT_USE, t);
601 INHERIT (to_has_all_memory, t);
602 INHERIT (to_has_memory, t);
603 INHERIT (to_has_stack, t);
604 INHERIT (to_has_registers, t);
605 INHERIT (to_has_execution, t);
606 INHERIT (to_has_thread_control, t);
607 INHERIT (to_sections, t);
608 INHERIT (to_sections_end, t);
609 INHERIT (to_can_async_p, t);
610 INHERIT (to_is_async_p, t);
611 INHERIT (to_async, t);
612 INHERIT (to_async_mask_value, t);
613 INHERIT (to_magic, t);
619 /* Push a new target type into the stack of the existing target accessors,
620 possibly superseding some of the existing accessors.
622 Result is zero if the pushed target ended up on top of the stack,
623 nonzero if at least one target is on top of it.
625 Rather than allow an empty stack, we always have the dummy target at
626 the bottom stratum, so we can call the function vectors without
630 push_target (struct target_ops *t)
632 struct target_stack_item *cur, *prev, *tmp;
634 /* Check magic number. If wrong, it probably means someone changed
635 the struct definition, but not all the places that initialize one. */
636 if (t->to_magic != OPS_MAGIC)
638 fprintf_unfiltered (gdb_stderr,
639 "Magic number of %s target struct wrong\n",
641 internal_error (__FILE__, __LINE__, "failed internal consistency check");
644 /* Find the proper stratum to install this target in. */
646 for (prev = NULL, cur = target_stack; cur; prev = cur, cur = cur->next)
648 if ((int) (t->to_stratum) >= (int) (cur->target_ops->to_stratum))
652 /* If there's already targets at this stratum, remove them. */
655 while (t->to_stratum == cur->target_ops->to_stratum)
657 /* There's already something on this stratum. Close it off. */
658 if (cur->target_ops->to_close)
659 (cur->target_ops->to_close) (0);
661 prev->next = cur->next; /* Unchain old target_ops */
663 target_stack = cur->next; /* Unchain first on list */
669 /* We have removed all targets in our stratum, now add the new one. */
671 tmp = (struct target_stack_item *)
672 xmalloc (sizeof (struct target_stack_item));
681 update_current_target ();
683 cleanup_target (¤t_target); /* Fill in the gaps */
686 setup_target_debug ();
691 /* Remove a target_ops vector from the stack, wherever it may be.
692 Return how many times it was removed (0 or 1). */
695 unpush_target (struct target_ops *t)
697 struct target_stack_item *cur, *prev;
700 t->to_close (0); /* Let it clean up */
702 /* Look for the specified target. Note that we assume that a target
703 can only occur once in the target stack. */
705 for (cur = target_stack, prev = NULL; cur; prev = cur, cur = cur->next)
706 if (cur->target_ops == t)
710 return 0; /* Didn't find target_ops, quit now */
712 /* Unchain the target */
715 target_stack = cur->next;
717 prev->next = cur->next;
719 xfree (cur); /* Release the target_stack_item */
721 update_current_target ();
722 cleanup_target (¤t_target);
730 (current_target.to_close) (0); /* Let it clean up */
731 if (unpush_target (target_stack->target_ops) == 1)
734 fprintf_unfiltered (gdb_stderr,
735 "pop_target couldn't find target %s\n",
736 current_target.to_shortname);
737 internal_error (__FILE__, __LINE__, "failed internal consistency check");
741 #define MIN(A, B) (((A) <= (B)) ? (A) : (B))
743 /* target_read_string -- read a null terminated string, up to LEN bytes,
744 from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful.
745 Set *STRING to a pointer to malloc'd memory containing the data; the caller
746 is responsible for freeing it. Return the number of bytes successfully
750 target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop)
752 int tlen, origlen, offset, i;
756 int buffer_allocated;
758 unsigned int nbytes_read = 0;
760 /* Small for testing. */
761 buffer_allocated = 4;
762 buffer = xmalloc (buffer_allocated);
769 tlen = MIN (len, 4 - (memaddr & 3));
770 offset = memaddr & 3;
772 errcode = target_xfer_memory (memaddr & ~3, buf, 4, 0);
775 /* The transfer request might have crossed the boundary to an
776 unallocated region of memory. Retry the transfer, requesting
780 errcode = target_xfer_memory (memaddr, buf, 1, 0);
785 if (bufptr - buffer + tlen > buffer_allocated)
788 bytes = bufptr - buffer;
789 buffer_allocated *= 2;
790 buffer = xrealloc (buffer, buffer_allocated);
791 bufptr = buffer + bytes;
794 for (i = 0; i < tlen; i++)
796 *bufptr++ = buf[i + offset];
797 if (buf[i + offset] == '\000')
799 nbytes_read += i + 1;
816 /* Read LEN bytes of target memory at address MEMADDR, placing the results in
817 GDB's memory at MYADDR. Returns either 0 for success or an errno value
820 If an error occurs, no guarantee is made about the contents of the data at
821 MYADDR. In particular, the caller should not depend upon partial reads
822 filling the buffer with good data. There is no way for the caller to know
823 how much good data might have been transfered anyway. Callers that can
824 deal with partial reads should call target_read_memory_partial. */
827 target_read_memory (CORE_ADDR memaddr, char *myaddr, int len)
829 return target_xfer_memory (memaddr, myaddr, len, 0);
833 target_write_memory (CORE_ADDR memaddr, char *myaddr, int len)
835 return target_xfer_memory (memaddr, myaddr, len, 1);
838 /* Move memory to or from the targets. The top target gets priority;
839 if it cannot handle it, it is offered to the next one down, etc.
841 Result is -1 on error, or the number of bytes transfered. */
844 do_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write,
845 struct mem_attrib *attrib)
849 struct target_ops *t;
850 struct target_stack_item *item;
852 /* Zero length requests are ok and require no work. */
856 /* to_xfer_memory is not guaranteed to set errno, even when it returns
860 /* The quick case is that the top target can handle the transfer. */
861 res = current_target.to_xfer_memory
862 (memaddr, myaddr, len, write, attrib, ¤t_target);
864 /* If res <= 0 then we call it again in the loop. Ah well. */
867 for (item = target_stack; item; item = item->next)
869 t = item->target_ops;
870 if (!t->to_has_memory)
873 res = t->to_xfer_memory (memaddr, myaddr, len, write, attrib, t);
875 break; /* Handled all or part of xfer */
876 if (t->to_has_all_memory)
888 /* Perform a memory transfer. Iterate until the entire region has
891 Result is 0 or errno value. */
894 target_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write)
898 struct mem_region *region;
900 /* Zero length requests are ok and require no work. */
908 region = lookup_mem_region(memaddr);
909 if (memaddr + len < region->hi)
912 reg_len = region->hi - memaddr;
914 switch (region->attrib.mode)
929 if (region->attrib.cache)
930 res = dcache_xfer_memory(target_dcache, memaddr, myaddr,
933 res = do_xfer_memory(memaddr, myaddr, reg_len, write,
938 /* If this address is for nonexistent memory, read zeros
939 if reading, or do nothing if writing. Return
942 memset (myaddr, 0, len);
956 return 0; /* We managed to cover it all somehow. */
960 /* Perform a partial memory transfer.
962 Result is -1 on error, or the number of bytes transfered. */
965 target_xfer_memory_partial (CORE_ADDR memaddr, char *myaddr, int len,
966 int write_p, int *err)
970 struct mem_region *region;
972 /* Zero length requests are ok and require no work. */
979 region = lookup_mem_region(memaddr);
980 if (memaddr + len < region->hi)
983 reg_len = region->hi - memaddr;
985 switch (region->attrib.mode)
1004 if (region->attrib.cache)
1005 res = dcache_xfer_memory (target_dcache, memaddr, myaddr,
1008 res = do_xfer_memory (memaddr, myaddr, reg_len, write_p,
1026 target_read_memory_partial (CORE_ADDR memaddr, char *buf, int len, int *err)
1028 return target_xfer_memory_partial (memaddr, buf, len, 0, err);
1032 target_write_memory_partial (CORE_ADDR memaddr, char *buf, int len, int *err)
1034 return target_xfer_memory_partial (memaddr, buf, len, 1, err);
1039 target_info (char *args, int from_tty)
1041 struct target_ops *t;
1042 struct target_stack_item *item;
1043 int has_all_mem = 0;
1045 if (symfile_objfile != NULL)
1046 printf_unfiltered ("Symbols from \"%s\".\n", symfile_objfile->name);
1048 #ifdef FILES_INFO_HOOK
1049 if (FILES_INFO_HOOK ())
1053 for (item = target_stack; item; item = item->next)
1055 t = item->target_ops;
1057 if (!t->to_has_memory)
1060 if ((int) (t->to_stratum) <= (int) dummy_stratum)
1063 printf_unfiltered ("\tWhile running this, GDB does not access memory from...\n");
1064 printf_unfiltered ("%s:\n", t->to_longname);
1065 (t->to_files_info) (t);
1066 has_all_mem = t->to_has_all_memory;
1070 /* This is to be called by the open routine before it does
1074 target_preopen (int from_tty)
1078 if (target_has_execution)
1081 || query ("A program is being debugged already. Kill it? "))
1084 error ("Program not killed.");
1087 /* Calling target_kill may remove the target from the stack. But if
1088 it doesn't (which seems like a win for UDI), remove it now. */
1090 if (target_has_execution)
1094 /* Detach a target after doing deferred register stores. */
1097 target_detach (char *args, int from_tty)
1099 /* Handle any optimized stores to the inferior. */
1100 #ifdef DO_DEFERRED_STORES
1103 (current_target.to_detach) (args, from_tty);
1107 target_link (char *modname, CORE_ADDR *t_reloc)
1109 if (STREQ (current_target.to_shortname, "rombug"))
1111 (current_target.to_lookup_symbol) (modname, t_reloc);
1113 error ("Unable to link to %s and get relocation in rombug", modname);
1116 *t_reloc = (CORE_ADDR) -1;
1120 target_async_mask (int mask)
1122 int saved_async_masked_status = target_async_mask_value;
1123 target_async_mask_value = mask;
1124 return saved_async_masked_status;
1127 /* Look through the list of possible targets for a target that can
1128 execute a run or attach command without any other data. This is
1129 used to locate the default process stratum.
1131 Result is always valid (error() is called for errors). */
1133 static struct target_ops *
1134 find_default_run_target (char *do_mesg)
1136 struct target_ops **t;
1137 struct target_ops *runable = NULL;
1142 for (t = target_structs; t < target_structs + target_struct_size;
1145 if ((*t)->to_can_run && target_can_run (*t))
1153 error ("Don't know how to %s. Try \"help target\".", do_mesg);
1159 find_default_attach (char *args, int from_tty)
1161 struct target_ops *t;
1163 t = find_default_run_target ("attach");
1164 (t->to_attach) (args, from_tty);
1169 find_default_require_attach (char *args, int from_tty)
1171 struct target_ops *t;
1173 t = find_default_run_target ("require_attach");
1174 (t->to_require_attach) (args, from_tty);
1179 find_default_require_detach (int pid, char *args, int from_tty)
1181 struct target_ops *t;
1183 t = find_default_run_target ("require_detach");
1184 (t->to_require_detach) (pid, args, from_tty);
1189 find_default_create_inferior (char *exec_file, char *allargs, char **env)
1191 struct target_ops *t;
1193 t = find_default_run_target ("run");
1194 (t->to_create_inferior) (exec_file, allargs, env);
1199 find_default_clone_and_follow_inferior (int child_pid, int *followed_child)
1201 struct target_ops *t;
1203 t = find_default_run_target ("run");
1204 (t->to_clone_and_follow_inferior) (child_pid, followed_child);
1221 * Resize the to_sections pointer. Also make sure that anyone that
1222 * was holding on to an old value of it gets updated.
1223 * Returns the old size.
1227 target_resize_to_sections (struct target_ops *target, int num_added)
1229 struct target_ops **t;
1230 struct section_table *old_value;
1233 old_value = target->to_sections;
1235 if (target->to_sections)
1237 old_count = target->to_sections_end - target->to_sections;
1238 target->to_sections = (struct section_table *)
1239 xrealloc ((char *) target->to_sections,
1240 (sizeof (struct section_table)) * (num_added + old_count));
1245 target->to_sections = (struct section_table *)
1246 xmalloc ((sizeof (struct section_table)) * num_added);
1248 target->to_sections_end = target->to_sections + (num_added + old_count);
1250 /* Check to see if anyone else was pointing to this structure.
1251 If old_value was null, then no one was. */
1255 for (t = target_structs; t < target_structs + target_struct_size;
1258 if ((*t)->to_sections == old_value)
1260 (*t)->to_sections = target->to_sections;
1261 (*t)->to_sections_end = target->to_sections_end;
1270 /* Remove all target sections taken from ABFD.
1272 Scan the current target stack for targets whose section tables
1273 refer to sections from BFD, and remove those sections. We use this
1274 when we notice that the inferior has unloaded a shared object, for
1277 remove_target_sections (bfd *abfd)
1279 struct target_ops **t;
1281 for (t = target_structs; t < target_structs + target_struct_size; t++)
1283 struct section_table *src, *dest;
1285 dest = (*t)->to_sections;
1286 for (src = (*t)->to_sections; src < (*t)->to_sections_end; src++)
1287 if (src->bfd != abfd)
1289 /* Keep this section. */
1290 if (dest < src) *dest = *src;
1294 /* If we've dropped any sections, resize the section table. */
1296 target_resize_to_sections (*t, dest - src);
1303 /* Find a single runnable target in the stack and return it. If for
1304 some reason there is more than one, return NULL. */
1307 find_run_target (void)
1309 struct target_ops **t;
1310 struct target_ops *runable = NULL;
1315 for (t = target_structs; t < target_structs + target_struct_size; ++t)
1317 if ((*t)->to_can_run && target_can_run (*t))
1324 return (count == 1 ? runable : NULL);
1327 /* Find a single core_stratum target in the list of targets and return it.
1328 If for some reason there is more than one, return NULL. */
1331 find_core_target (void)
1333 struct target_ops **t;
1334 struct target_ops *runable = NULL;
1339 for (t = target_structs; t < target_structs + target_struct_size;
1342 if ((*t)->to_stratum == core_stratum)
1349 return (count == 1 ? runable : NULL);
1353 * Find the next target down the stack from the specified target.
1357 find_target_beneath (struct target_ops *t)
1359 struct target_stack_item *cur;
1361 for (cur = target_stack; cur; cur = cur->next)
1362 if (cur->target_ops == t)
1365 if (cur == NULL || cur->next == NULL)
1368 return cur->next->target_ops;
1372 /* The inferior process has died. Long live the inferior! */
1375 generic_mourn_inferior (void)
1377 extern int show_breakpoint_hit_counts;
1379 inferior_ptid = null_ptid;
1381 breakpoint_init_inferior (inf_exited);
1382 registers_changed ();
1384 #ifdef CLEAR_DEFERRED_STORES
1385 /* Delete any pending stores to the inferior... */
1386 CLEAR_DEFERRED_STORES;
1389 reopen_exec_file ();
1390 reinit_frame_cache ();
1392 /* It is confusing to the user for ignore counts to stick around
1393 from previous runs of the inferior. So clear them. */
1394 /* However, it is more confusing for the ignore counts to disappear when
1395 using hit counts. So don't clear them if we're counting hits. */
1396 if (!show_breakpoint_hit_counts)
1397 breakpoint_clear_ignore_counts ();
1403 /* Helper function for child_wait and the Lynx derivatives of child_wait.
1404 HOSTSTATUS is the waitstatus from wait() or the equivalent; store our
1405 translation of that in OURSTATUS. */
1407 store_waitstatus (struct target_waitstatus *ourstatus, int hoststatus)
1409 #ifdef CHILD_SPECIAL_WAITSTATUS
1410 /* CHILD_SPECIAL_WAITSTATUS should return nonzero and set *OURSTATUS
1411 if it wants to deal with hoststatus. */
1412 if (CHILD_SPECIAL_WAITSTATUS (ourstatus, hoststatus))
1416 if (WIFEXITED (hoststatus))
1418 ourstatus->kind = TARGET_WAITKIND_EXITED;
1419 ourstatus->value.integer = WEXITSTATUS (hoststatus);
1421 else if (!WIFSTOPPED (hoststatus))
1423 ourstatus->kind = TARGET_WAITKIND_SIGNALLED;
1424 ourstatus->value.sig = target_signal_from_host (WTERMSIG (hoststatus));
1428 ourstatus->kind = TARGET_WAITKIND_STOPPED;
1429 ourstatus->value.sig = target_signal_from_host (WSTOPSIG (hoststatus));
1433 /* Returns zero to leave the inferior alone, one to interrupt it. */
1434 int (*target_activity_function) (void);
1435 int target_activity_fd;
1437 /* Convert a normal process ID to a string. Returns the string in a static
1441 normal_pid_to_str (ptid_t ptid)
1443 static char buf[30];
1445 sprintf (buf, "process %d", PIDGET (ptid));
1449 /* Some targets (such as ttrace-based HPUX) don't allow us to request
1450 notification of inferior events such as fork and vork immediately
1451 after the inferior is created. (This because of how gdb gets an
1452 inferior created via invoking a shell to do it. In such a scenario,
1453 if the shell init file has commands in it, the shell will fork and
1454 exec for each of those commands, and we will see each such fork
1457 This function is used by all targets that allow us to request
1458 notification of forks, etc at inferior creation time; e.g., in
1459 target_acknowledge_forked_child.
1462 normal_target_post_startup_inferior (ptid_t ptid)
1464 /* This space intentionally left blank. */
1467 /* Set up the handful of non-empty slots needed by the dummy target
1471 init_dummy_target (void)
1473 dummy_target.to_shortname = "None";
1474 dummy_target.to_longname = "None";
1475 dummy_target.to_doc = "";
1476 dummy_target.to_attach = find_default_attach;
1477 dummy_target.to_require_attach = find_default_require_attach;
1478 dummy_target.to_require_detach = find_default_require_detach;
1479 dummy_target.to_create_inferior = find_default_create_inferior;
1480 dummy_target.to_clone_and_follow_inferior = find_default_clone_and_follow_inferior;
1481 dummy_target.to_pid_to_str = normal_pid_to_str;
1482 dummy_target.to_stratum = dummy_stratum;
1483 dummy_target.to_magic = OPS_MAGIC;
1487 static struct target_ops debug_target;
1490 debug_to_open (char *args, int from_tty)
1492 debug_target.to_open (args, from_tty);
1494 fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty);
1498 debug_to_close (int quitting)
1500 debug_target.to_close (quitting);
1502 fprintf_unfiltered (gdb_stdlog, "target_close (%d)\n", quitting);
1506 debug_to_attach (char *args, int from_tty)
1508 debug_target.to_attach (args, from_tty);
1510 fprintf_unfiltered (gdb_stdlog, "target_attach (%s, %d)\n", args, from_tty);
1515 debug_to_post_attach (int pid)
1517 debug_target.to_post_attach (pid);
1519 fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid);
1523 debug_to_require_attach (char *args, int from_tty)
1525 debug_target.to_require_attach (args, from_tty);
1527 fprintf_unfiltered (gdb_stdlog,
1528 "target_require_attach (%s, %d)\n", args, from_tty);
1532 debug_to_detach (char *args, int from_tty)
1534 debug_target.to_detach (args, from_tty);
1536 fprintf_unfiltered (gdb_stdlog, "target_detach (%s, %d)\n", args, from_tty);
1540 debug_to_require_detach (int pid, char *args, int from_tty)
1542 debug_target.to_require_detach (pid, args, from_tty);
1544 fprintf_unfiltered (gdb_stdlog,
1545 "target_require_detach (%d, %s, %d)\n", pid, args, from_tty);
1549 debug_to_resume (ptid_t ptid, int step, enum target_signal siggnal)
1551 debug_target.to_resume (ptid, step, siggnal);
1553 fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n", PIDGET (ptid),
1554 step ? "step" : "continue",
1555 target_signal_to_name (siggnal));
1559 debug_to_wait (ptid_t ptid, struct target_waitstatus *status)
1563 retval = debug_target.to_wait (ptid, status);
1565 fprintf_unfiltered (gdb_stdlog,
1566 "target_wait (%d, status) = %d, ", PIDGET (ptid),
1568 fprintf_unfiltered (gdb_stdlog, "status->kind = ");
1569 switch (status->kind)
1571 case TARGET_WAITKIND_EXITED:
1572 fprintf_unfiltered (gdb_stdlog, "exited, status = %d\n",
1573 status->value.integer);
1575 case TARGET_WAITKIND_STOPPED:
1576 fprintf_unfiltered (gdb_stdlog, "stopped, signal = %s\n",
1577 target_signal_to_name (status->value.sig));
1579 case TARGET_WAITKIND_SIGNALLED:
1580 fprintf_unfiltered (gdb_stdlog, "signalled, signal = %s\n",
1581 target_signal_to_name (status->value.sig));
1583 case TARGET_WAITKIND_LOADED:
1584 fprintf_unfiltered (gdb_stdlog, "loaded\n");
1586 case TARGET_WAITKIND_FORKED:
1587 fprintf_unfiltered (gdb_stdlog, "forked\n");
1589 case TARGET_WAITKIND_VFORKED:
1590 fprintf_unfiltered (gdb_stdlog, "vforked\n");
1592 case TARGET_WAITKIND_EXECD:
1593 fprintf_unfiltered (gdb_stdlog, "execd\n");
1595 case TARGET_WAITKIND_SPURIOUS:
1596 fprintf_unfiltered (gdb_stdlog, "spurious\n");
1599 fprintf_unfiltered (gdb_stdlog, "unknown???\n");
1607 debug_to_post_wait (ptid_t ptid, int status)
1609 debug_target.to_post_wait (ptid, status);
1611 fprintf_unfiltered (gdb_stdlog, "target_post_wait (%d, %d)\n",
1612 PIDGET (ptid), status);
1616 debug_to_fetch_registers (int regno)
1618 debug_target.to_fetch_registers (regno);
1620 fprintf_unfiltered (gdb_stdlog, "target_fetch_registers (%s)",
1621 regno != -1 ? REGISTER_NAME (regno) : "-1");
1623 fprintf_unfiltered (gdb_stdlog, " = 0x%lx %ld",
1624 (unsigned long) read_register (regno),
1625 (unsigned long) read_register (regno));
1626 fprintf_unfiltered (gdb_stdlog, "\n");
1630 debug_to_store_registers (int regno)
1632 debug_target.to_store_registers (regno);
1634 if (regno >= 0 && regno < NUM_REGS)
1635 fprintf_unfiltered (gdb_stdlog, "target_store_registers (%s) = 0x%lx %ld\n",
1636 REGISTER_NAME (regno),
1637 (unsigned long) read_register (regno),
1638 (unsigned long) read_register (regno));
1640 fprintf_unfiltered (gdb_stdlog, "target_store_registers (%d)\n", regno);
1644 debug_to_prepare_to_store (void)
1646 debug_target.to_prepare_to_store ();
1648 fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n");
1652 debug_to_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write,
1653 struct mem_attrib *attrib,
1654 struct target_ops *target)
1658 retval = debug_target.to_xfer_memory (memaddr, myaddr, len, write,
1661 fprintf_unfiltered (gdb_stdlog,
1662 "target_xfer_memory (0x%x, xxx, %d, %s, xxx) = %d",
1663 (unsigned int) memaddr, /* possable truncate long long */
1664 len, write ? "write" : "read", retval);
1672 fputs_unfiltered (", bytes =", gdb_stdlog);
1673 for (i = 0; i < retval; i++)
1675 if ((((long) &(myaddr[i])) & 0xf) == 0)
1676 fprintf_unfiltered (gdb_stdlog, "\n");
1677 fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff);
1681 fputc_unfiltered ('\n', gdb_stdlog);
1687 debug_to_files_info (struct target_ops *target)
1689 debug_target.to_files_info (target);
1691 fprintf_unfiltered (gdb_stdlog, "target_files_info (xxx)\n");
1695 debug_to_insert_breakpoint (CORE_ADDR addr, char *save)
1699 retval = debug_target.to_insert_breakpoint (addr, save);
1701 fprintf_unfiltered (gdb_stdlog,
1702 "target_insert_breakpoint (0x%lx, xxx) = %ld\n",
1703 (unsigned long) addr,
1704 (unsigned long) retval);
1709 debug_to_remove_breakpoint (CORE_ADDR addr, char *save)
1713 retval = debug_target.to_remove_breakpoint (addr, save);
1715 fprintf_unfiltered (gdb_stdlog,
1716 "target_remove_breakpoint (0x%lx, xxx) = %ld\n",
1717 (unsigned long) addr,
1718 (unsigned long) retval);
1723 debug_to_terminal_init (void)
1725 debug_target.to_terminal_init ();
1727 fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n");
1731 debug_to_terminal_inferior (void)
1733 debug_target.to_terminal_inferior ();
1735 fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n");
1739 debug_to_terminal_ours_for_output (void)
1741 debug_target.to_terminal_ours_for_output ();
1743 fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n");
1747 debug_to_terminal_ours (void)
1749 debug_target.to_terminal_ours ();
1751 fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n");
1755 debug_to_terminal_info (char *arg, int from_tty)
1757 debug_target.to_terminal_info (arg, from_tty);
1759 fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg,
1764 debug_to_kill (void)
1766 debug_target.to_kill ();
1768 fprintf_unfiltered (gdb_stdlog, "target_kill ()\n");
1772 debug_to_load (char *args, int from_tty)
1774 debug_target.to_load (args, from_tty);
1776 fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty);
1780 debug_to_lookup_symbol (char *name, CORE_ADDR *addrp)
1784 retval = debug_target.to_lookup_symbol (name, addrp);
1786 fprintf_unfiltered (gdb_stdlog, "target_lookup_symbol (%s, xxx)\n", name);
1792 debug_to_create_inferior (char *exec_file, char *args, char **env)
1794 debug_target.to_create_inferior (exec_file, args, env);
1796 fprintf_unfiltered (gdb_stdlog, "target_create_inferior (%s, %s, xxx)\n",
1801 debug_to_post_startup_inferior (ptid_t ptid)
1803 debug_target.to_post_startup_inferior (ptid);
1805 fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n",
1810 debug_to_acknowledge_created_inferior (int pid)
1812 debug_target.to_acknowledge_created_inferior (pid);
1814 fprintf_unfiltered (gdb_stdlog, "target_acknowledge_created_inferior (%d)\n",
1819 debug_to_clone_and_follow_inferior (int child_pid, int *followed_child)
1821 debug_target.to_clone_and_follow_inferior (child_pid, followed_child);
1823 fprintf_unfiltered (gdb_stdlog,
1824 "target_clone_and_follow_inferior (%d, %d)\n",
1825 child_pid, *followed_child);
1829 debug_to_post_follow_inferior_by_clone (void)
1831 debug_target.to_post_follow_inferior_by_clone ();
1833 fprintf_unfiltered (gdb_stdlog, "target_post_follow_inferior_by_clone ()\n");
1837 debug_to_insert_fork_catchpoint (int pid)
1841 retval = debug_target.to_insert_fork_catchpoint (pid);
1843 fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d) = %d\n",
1850 debug_to_remove_fork_catchpoint (int pid)
1854 retval = debug_target.to_remove_fork_catchpoint (pid);
1856 fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n",
1863 debug_to_insert_vfork_catchpoint (int pid)
1867 retval = debug_target.to_insert_vfork_catchpoint (pid);
1869 fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d)= %d\n",
1876 debug_to_remove_vfork_catchpoint (int pid)
1880 retval = debug_target.to_remove_vfork_catchpoint (pid);
1882 fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n",
1889 debug_to_has_forked (int pid, int *child_pid)
1893 has_forked = debug_target.to_has_forked (pid, child_pid);
1895 fprintf_unfiltered (gdb_stdlog, "target_has_forked (%d, %d) = %d\n",
1896 pid, *child_pid, has_forked);
1902 debug_to_has_vforked (int pid, int *child_pid)
1906 has_vforked = debug_target.to_has_vforked (pid, child_pid);
1908 fprintf_unfiltered (gdb_stdlog, "target_has_vforked (%d, %d) = %d\n",
1909 pid, *child_pid, has_vforked);
1915 debug_to_can_follow_vfork_prior_to_exec (void)
1917 int can_immediately_follow_vfork;
1919 can_immediately_follow_vfork = debug_target.to_can_follow_vfork_prior_to_exec ();
1921 fprintf_unfiltered (gdb_stdlog, "target_can_follow_vfork_prior_to_exec () = %d\n",
1922 can_immediately_follow_vfork);
1924 return can_immediately_follow_vfork;
1928 debug_to_post_follow_vfork (int parent_pid, int followed_parent, int child_pid,
1931 debug_target.to_post_follow_vfork (parent_pid, followed_parent, child_pid, followed_child);
1933 fprintf_unfiltered (gdb_stdlog,
1934 "target_post_follow_vfork (%d, %d, %d, %d)\n",
1935 parent_pid, followed_parent, child_pid, followed_child);
1939 debug_to_insert_exec_catchpoint (int pid)
1943 retval = debug_target.to_insert_exec_catchpoint (pid);
1945 fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d) = %d\n",
1952 debug_to_remove_exec_catchpoint (int pid)
1956 retval = debug_target.to_remove_exec_catchpoint (pid);
1958 fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n",
1965 debug_to_has_execd (int pid, char **execd_pathname)
1969 has_execd = debug_target.to_has_execd (pid, execd_pathname);
1971 fprintf_unfiltered (gdb_stdlog, "target_has_execd (%d, %s) = %d\n",
1972 pid, (*execd_pathname ? *execd_pathname : "<NULL>"),
1979 debug_to_reported_exec_events_per_exec_call (void)
1981 int reported_exec_events;
1983 reported_exec_events = debug_target.to_reported_exec_events_per_exec_call ();
1985 fprintf_unfiltered (gdb_stdlog,
1986 "target_reported_exec_events_per_exec_call () = %d\n",
1987 reported_exec_events);
1989 return reported_exec_events;
1993 debug_to_has_syscall_event (int pid, enum target_waitkind *kind,
1996 int has_syscall_event;
1997 char *kind_spelling = "??";
1999 has_syscall_event = debug_target.to_has_syscall_event (pid, kind, syscall_id);
2000 if (has_syscall_event)
2004 case TARGET_WAITKIND_SYSCALL_ENTRY:
2005 kind_spelling = "SYSCALL_ENTRY";
2007 case TARGET_WAITKIND_SYSCALL_RETURN:
2008 kind_spelling = "SYSCALL_RETURN";
2015 fprintf_unfiltered (gdb_stdlog,
2016 "target_has_syscall_event (%d, %s, %d) = %d\n",
2017 pid, kind_spelling, *syscall_id, has_syscall_event);
2019 return has_syscall_event;
2023 debug_to_has_exited (int pid, int wait_status, int *exit_status)
2027 has_exited = debug_target.to_has_exited (pid, wait_status, exit_status);
2029 fprintf_unfiltered (gdb_stdlog, "target_has_exited (%d, %d, %d) = %d\n",
2030 pid, wait_status, *exit_status, has_exited);
2036 debug_to_mourn_inferior (void)
2038 debug_target.to_mourn_inferior ();
2040 fprintf_unfiltered (gdb_stdlog, "target_mourn_inferior ()\n");
2044 debug_to_can_run (void)
2048 retval = debug_target.to_can_run ();
2050 fprintf_unfiltered (gdb_stdlog, "target_can_run () = %d\n", retval);
2056 debug_to_notice_signals (ptid_t ptid)
2058 debug_target.to_notice_signals (ptid);
2060 fprintf_unfiltered (gdb_stdlog, "target_notice_signals (%d)\n",
2065 debug_to_thread_alive (ptid_t ptid)
2069 retval = debug_target.to_thread_alive (ptid);
2071 fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n",
2072 PIDGET (ptid), retval);
2078 debug_to_find_new_threads (void)
2080 debug_target.to_find_new_threads ();
2082 fputs_unfiltered ("target_find_new_threads ()\n", gdb_stdlog);
2086 debug_to_stop (void)
2088 debug_target.to_stop ();
2090 fprintf_unfiltered (gdb_stdlog, "target_stop ()\n");
2094 debug_to_query (int type, char *req, char *resp, int *siz)
2098 retval = debug_target.to_query (type, req, resp, siz);
2100 fprintf_unfiltered (gdb_stdlog, "target_query (%c, %s, %s, %d) = %d\n", type, req, resp, *siz, retval);
2106 debug_to_rcmd (char *command,
2107 struct ui_file *outbuf)
2109 debug_target.to_rcmd (command, outbuf);
2110 fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command);
2113 static struct symtab_and_line *
2114 debug_to_enable_exception_callback (enum exception_event_kind kind, int enable)
2116 struct symtab_and_line *result;
2117 result = debug_target.to_enable_exception_callback (kind, enable);
2118 fprintf_unfiltered (gdb_stdlog,
2119 "target get_exception_callback_sal (%d, %d)\n",
2124 static struct exception_event_record *
2125 debug_to_get_current_exception_event (void)
2127 struct exception_event_record *result;
2128 result = debug_target.to_get_current_exception_event ();
2129 fprintf_unfiltered (gdb_stdlog, "target get_current_exception_event ()\n");
2134 debug_to_pid_to_exec_file (int pid)
2138 exec_file = debug_target.to_pid_to_exec_file (pid);
2140 fprintf_unfiltered (gdb_stdlog, "target_pid_to_exec_file (%d) = %s\n",
2147 setup_target_debug (void)
2149 memcpy (&debug_target, ¤t_target, sizeof debug_target);
2151 current_target.to_open = debug_to_open;
2152 current_target.to_close = debug_to_close;
2153 current_target.to_attach = debug_to_attach;
2154 current_target.to_post_attach = debug_to_post_attach;
2155 current_target.to_require_attach = debug_to_require_attach;
2156 current_target.to_detach = debug_to_detach;
2157 current_target.to_require_detach = debug_to_require_detach;
2158 current_target.to_resume = debug_to_resume;
2159 current_target.to_wait = debug_to_wait;
2160 current_target.to_post_wait = debug_to_post_wait;
2161 current_target.to_fetch_registers = debug_to_fetch_registers;
2162 current_target.to_store_registers = debug_to_store_registers;
2163 current_target.to_prepare_to_store = debug_to_prepare_to_store;
2164 current_target.to_xfer_memory = debug_to_xfer_memory;
2165 current_target.to_files_info = debug_to_files_info;
2166 current_target.to_insert_breakpoint = debug_to_insert_breakpoint;
2167 current_target.to_remove_breakpoint = debug_to_remove_breakpoint;
2168 current_target.to_terminal_init = debug_to_terminal_init;
2169 current_target.to_terminal_inferior = debug_to_terminal_inferior;
2170 current_target.to_terminal_ours_for_output = debug_to_terminal_ours_for_output;
2171 current_target.to_terminal_ours = debug_to_terminal_ours;
2172 current_target.to_terminal_info = debug_to_terminal_info;
2173 current_target.to_kill = debug_to_kill;
2174 current_target.to_load = debug_to_load;
2175 current_target.to_lookup_symbol = debug_to_lookup_symbol;
2176 current_target.to_create_inferior = debug_to_create_inferior;
2177 current_target.to_post_startup_inferior = debug_to_post_startup_inferior;
2178 current_target.to_acknowledge_created_inferior = debug_to_acknowledge_created_inferior;
2179 current_target.to_clone_and_follow_inferior = debug_to_clone_and_follow_inferior;
2180 current_target.to_post_follow_inferior_by_clone = debug_to_post_follow_inferior_by_clone;
2181 current_target.to_insert_fork_catchpoint = debug_to_insert_fork_catchpoint;
2182 current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint;
2183 current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint;
2184 current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint;
2185 current_target.to_has_forked = debug_to_has_forked;
2186 current_target.to_has_vforked = debug_to_has_vforked;
2187 current_target.to_can_follow_vfork_prior_to_exec = debug_to_can_follow_vfork_prior_to_exec;
2188 current_target.to_post_follow_vfork = debug_to_post_follow_vfork;
2189 current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint;
2190 current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint;
2191 current_target.to_has_execd = debug_to_has_execd;
2192 current_target.to_reported_exec_events_per_exec_call = debug_to_reported_exec_events_per_exec_call;
2193 current_target.to_has_syscall_event = debug_to_has_syscall_event;
2194 current_target.to_has_exited = debug_to_has_exited;
2195 current_target.to_mourn_inferior = debug_to_mourn_inferior;
2196 current_target.to_can_run = debug_to_can_run;
2197 current_target.to_notice_signals = debug_to_notice_signals;
2198 current_target.to_thread_alive = debug_to_thread_alive;
2199 current_target.to_find_new_threads = debug_to_find_new_threads;
2200 current_target.to_stop = debug_to_stop;
2201 current_target.to_query = debug_to_query;
2202 current_target.to_rcmd = debug_to_rcmd;
2203 current_target.to_enable_exception_callback = debug_to_enable_exception_callback;
2204 current_target.to_get_current_exception_event = debug_to_get_current_exception_event;
2205 current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file;
2210 static char targ_desc[] =
2211 "Names of targets and files being debugged.\n\
2212 Shows the entire stack of targets currently in use (including the exec-file,\n\
2213 core-file, and process, if any), as well as the symbol file name.";
2216 do_monitor_command (char *cmd,
2219 if ((current_target.to_rcmd
2220 == (void (*) (char *, struct ui_file *)) tcomplain)
2221 || (current_target.to_rcmd == debug_to_rcmd
2222 && (debug_target.to_rcmd
2223 == (void (*) (char *, struct ui_file *)) tcomplain)))
2225 error ("\"monitor\" command not supported by this target.\n");
2227 target_rcmd (cmd, gdb_stdtarg);
2231 initialize_targets (void)
2233 init_dummy_target ();
2234 push_target (&dummy_target);
2236 add_info ("target", target_info, targ_desc);
2237 add_info ("files", target_info, targ_desc);
2240 add_set_cmd ("target", class_maintenance, var_zinteger,
2241 (char *) &targetdebug,
2242 "Set target debugging.\n\
2243 When non-zero, target debugging is enabled.", &setdebuglist),
2247 add_com ("monitor", class_obscure, do_monitor_command,
2248 "Send a command to the remote monitor (remote targets only).");
2250 target_dcache = dcache_init();