1 /* Select target systems and architectures at runtime for GDB.
2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
4 Free Software Foundation, Inc.
5 Contributed by Cygnus Support.
7 This file is part of GDB.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 59 Temple Place - Suite 330,
22 Boston, MA 02111-1307, USA. */
26 #include "gdb_string.h"
41 static void target_info (char *, int);
43 static void cleanup_target (struct target_ops *);
45 static void maybe_kill_then_create_inferior (char *, char *, char **);
47 static void maybe_kill_then_attach (char *, int);
49 static void kill_or_be_killed (int);
51 static void default_terminal_info (char *, int);
53 static int default_region_size_ok_for_hw_watchpoint (int);
55 static int nosymbol (char *, CORE_ADDR *);
57 static void tcomplain (void);
59 static int nomemory (CORE_ADDR, char *, int, int, struct target_ops *);
61 static int return_zero (void);
63 static int return_one (void);
65 static int return_minus_one (void);
67 void target_ignore (void);
69 static void target_command (char *, int);
71 static struct target_ops *find_default_run_target (char *);
73 static void update_current_target (void);
75 static void nosupport_runtime (void);
77 static void normal_target_post_startup_inferior (ptid_t ptid);
79 /* Transfer LEN bytes between target address MEMADDR and GDB address
80 MYADDR. Returns 0 for success, errno code for failure (which
81 includes partial transfers -- if you want a more useful response to
82 partial transfers, try either target_read_memory_partial or
83 target_write_memory_partial). */
86 target_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write);
88 static void init_dummy_target (void);
90 static void debug_to_open (char *, int);
92 static void debug_to_close (int);
94 static void debug_to_attach (char *, int);
96 static void debug_to_detach (char *, int);
98 static void debug_to_resume (ptid_t, int, enum target_signal);
100 static ptid_t debug_to_wait (ptid_t, struct target_waitstatus *);
102 static void debug_to_fetch_registers (int);
104 static void debug_to_store_registers (int);
106 static void debug_to_prepare_to_store (void);
108 static int debug_to_xfer_memory (CORE_ADDR, char *, int, int,
109 struct mem_attrib *, struct target_ops *);
111 static void debug_to_files_info (struct target_ops *);
113 static int debug_to_insert_breakpoint (CORE_ADDR, char *);
115 static int debug_to_remove_breakpoint (CORE_ADDR, char *);
117 static int debug_to_can_use_hw_breakpoint (int, int, int);
119 static int debug_to_insert_hw_breakpoint (CORE_ADDR, char *);
121 static int debug_to_remove_hw_breakpoint (CORE_ADDR, char *);
123 static int debug_to_insert_watchpoint (CORE_ADDR, int, int);
125 static int debug_to_remove_watchpoint (CORE_ADDR, int, int);
127 static int debug_to_stopped_by_watchpoint (void);
129 static CORE_ADDR debug_to_stopped_data_address (void);
131 static int debug_to_region_size_ok_for_hw_watchpoint (int);
133 static void debug_to_terminal_init (void);
135 static void debug_to_terminal_inferior (void);
137 static void debug_to_terminal_ours_for_output (void);
139 static void debug_to_terminal_save_ours (void);
141 static void debug_to_terminal_ours (void);
143 static void debug_to_terminal_info (char *, int);
145 static void debug_to_kill (void);
147 static void debug_to_load (char *, int);
149 static int debug_to_lookup_symbol (char *, CORE_ADDR *);
151 static void debug_to_create_inferior (char *, char *, char **);
153 static void debug_to_mourn_inferior (void);
155 static int debug_to_can_run (void);
157 static void debug_to_notice_signals (ptid_t);
159 static int debug_to_thread_alive (ptid_t);
161 static void debug_to_stop (void);
163 static int debug_to_query (int /*char */ , char *, char *, int *);
165 /* Pointer to array of target architecture structures; the size of the
166 array; the current index into the array; the allocated size of the
168 struct target_ops **target_structs;
169 unsigned target_struct_size;
170 unsigned target_struct_index;
171 unsigned target_struct_allocsize;
172 #define DEFAULT_ALLOCSIZE 10
174 /* The initial current target, so that there is always a semi-valid
177 static struct target_ops dummy_target;
179 /* Top of target stack. */
181 struct target_stack_item *target_stack;
183 /* The target structure we are currently using to talk to a process
184 or file or whatever "inferior" we have. */
186 struct target_ops current_target;
188 /* Command list for target. */
190 static struct cmd_list_element *targetlist = NULL;
192 /* Nonzero if we are debugging an attached outside process
193 rather than an inferior. */
197 /* Non-zero if we want to see trace of target level stuff. */
199 static int targetdebug = 0;
201 static void setup_target_debug (void);
203 DCACHE *target_dcache;
205 /* The user just typed 'target' without the name of a target. */
209 target_command (char *arg, int from_tty)
211 fputs_filtered ("Argument required (target name). Try `help target'\n",
215 /* Add a possible target architecture to the list. */
218 add_target (struct target_ops *t)
222 target_struct_allocsize = DEFAULT_ALLOCSIZE;
223 target_structs = (struct target_ops **) xmalloc
224 (target_struct_allocsize * sizeof (*target_structs));
226 if (target_struct_size >= target_struct_allocsize)
228 target_struct_allocsize *= 2;
229 target_structs = (struct target_ops **)
230 xrealloc ((char *) target_structs,
231 target_struct_allocsize * sizeof (*target_structs));
233 target_structs[target_struct_size++] = t;
234 /* cleanup_target (t); */
236 if (targetlist == NULL)
237 add_prefix_cmd ("target", class_run, target_command,
238 "Connect to a target machine or process.\n\
239 The first argument is the type or protocol of the target machine.\n\
240 Remaining arguments are interpreted by the target protocol. For more\n\
241 information on the arguments for a particular protocol, type\n\
242 `help target ' followed by the protocol name.",
243 &targetlist, "target ", 0, &cmdlist);
244 add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, &targetlist);
255 target_load (char *arg, int from_tty)
257 dcache_invalidate (target_dcache);
258 (*current_target.to_load) (arg, from_tty);
263 nomemory (CORE_ADDR memaddr, char *myaddr, int len, int write,
264 struct target_ops *t)
266 errno = EIO; /* Can't read/write this location */
267 return 0; /* No bytes handled */
273 error ("You can't do that when your target is `%s'",
274 current_target.to_shortname);
280 error ("You can't do that without a process to debug.");
285 nosymbol (char *name, CORE_ADDR *addrp)
287 return 1; /* Symbol does not exist in target env */
292 nosupport_runtime (void)
294 if (ptid_equal (inferior_ptid, null_ptid))
297 error ("No run-time support for this");
303 default_terminal_info (char *args, int from_tty)
305 printf_unfiltered ("No saved terminal information.\n");
308 /* This is the default target_create_inferior and target_attach function.
309 If the current target is executing, it asks whether to kill it off.
310 If this function returns without calling error(), it has killed off
311 the target, and the operation should be attempted. */
314 kill_or_be_killed (int from_tty)
316 if (target_has_execution)
318 printf_unfiltered ("You are already running a program:\n");
319 target_files_info ();
320 if (query ("Kill it? "))
323 if (target_has_execution)
324 error ("Killing the program did not help.");
329 error ("Program not killed.");
336 maybe_kill_then_attach (char *args, int from_tty)
338 kill_or_be_killed (from_tty);
339 target_attach (args, from_tty);
343 maybe_kill_then_create_inferior (char *exec, char *args, char **env)
345 kill_or_be_killed (0);
346 target_create_inferior (exec, args, env);
349 /* Clean up a target struct so it no longer has any zero pointers in it.
350 We default entries, at least to stubs that print error messages. */
353 cleanup_target (struct target_ops *t)
356 #define de_fault(field, value) \
361 (void (*) (char *, int))
367 maybe_kill_then_attach);
368 de_fault (to_post_attach,
371 de_fault (to_require_attach,
372 maybe_kill_then_attach);
374 (void (*) (char *, int))
376 de_fault (to_require_detach,
377 (void (*) (int, char *, int))
380 (void (*) (ptid_t, int, enum target_signal))
383 (ptid_t (*) (ptid_t, struct target_waitstatus *))
385 de_fault (to_post_wait,
386 (void (*) (ptid_t, int))
388 de_fault (to_fetch_registers,
391 de_fault (to_store_registers,
394 de_fault (to_prepare_to_store,
397 de_fault (to_xfer_memory,
398 (int (*) (CORE_ADDR, char *, int, int, struct mem_attrib *, struct target_ops *))
400 de_fault (to_files_info,
401 (void (*) (struct target_ops *))
403 de_fault (to_insert_breakpoint,
404 memory_insert_breakpoint);
405 de_fault (to_remove_breakpoint,
406 memory_remove_breakpoint);
407 de_fault (to_can_use_hw_breakpoint,
408 (int (*) (int, int, int))
410 de_fault (to_insert_hw_breakpoint,
411 (int (*) (CORE_ADDR, char *))
413 de_fault (to_remove_hw_breakpoint,
414 (int (*) (CORE_ADDR, char *))
416 de_fault (to_insert_watchpoint,
417 (int (*) (CORE_ADDR, int, int))
419 de_fault (to_remove_watchpoint,
420 (int (*) (CORE_ADDR, int, int))
422 de_fault (to_stopped_by_watchpoint,
425 de_fault (to_stopped_data_address,
426 (CORE_ADDR (*) (void))
428 de_fault (to_region_size_ok_for_hw_watchpoint,
429 default_region_size_ok_for_hw_watchpoint);
430 de_fault (to_terminal_init,
433 de_fault (to_terminal_inferior,
436 de_fault (to_terminal_ours_for_output,
439 de_fault (to_terminal_ours,
442 de_fault (to_terminal_save_ours,
445 de_fault (to_terminal_info,
446 default_terminal_info);
451 (void (*) (char *, int))
453 de_fault (to_lookup_symbol,
454 (int (*) (char *, CORE_ADDR *))
456 de_fault (to_create_inferior,
457 maybe_kill_then_create_inferior);
458 de_fault (to_post_startup_inferior,
461 de_fault (to_acknowledge_created_inferior,
464 de_fault (to_insert_fork_catchpoint,
467 de_fault (to_remove_fork_catchpoint,
470 de_fault (to_insert_vfork_catchpoint,
473 de_fault (to_remove_vfork_catchpoint,
476 de_fault (to_follow_fork,
479 de_fault (to_insert_exec_catchpoint,
482 de_fault (to_remove_exec_catchpoint,
485 de_fault (to_reported_exec_events_per_exec_call,
488 de_fault (to_has_exited,
489 (int (*) (int, int, int *))
491 de_fault (to_mourn_inferior,
494 de_fault (to_can_run,
496 de_fault (to_notice_signals,
499 de_fault (to_thread_alive,
502 de_fault (to_find_new_threads,
505 de_fault (to_extra_thread_info,
506 (char *(*) (struct thread_info *))
512 (void (*) (char *, struct ui_file *))
514 de_fault (to_enable_exception_callback,
515 (struct symtab_and_line * (*) (enum exception_event_kind, int))
517 de_fault (to_get_current_exception_event,
518 (struct exception_event_record * (*) (void))
520 de_fault (to_pid_to_exec_file,
523 de_fault (to_can_async_p,
526 de_fault (to_is_async_p,
530 (void (*) (void (*) (enum inferior_event_type, void*), void*))
535 /* Go through the target stack from top to bottom, copying over zero entries in
536 current_target. In effect, we are doing class inheritance through the
537 pushed target vectors. */
540 update_current_target (void)
542 struct target_stack_item *item;
543 struct target_ops *t;
545 /* First, reset current_target */
546 memset (¤t_target, 0, sizeof current_target);
548 for (item = target_stack; item; item = item->next)
550 t = item->target_ops;
552 #define INHERIT(FIELD, TARGET) \
553 if (!current_target.FIELD) \
554 current_target.FIELD = TARGET->FIELD
556 INHERIT (to_shortname, t);
557 INHERIT (to_longname, t);
559 INHERIT (to_open, t);
560 INHERIT (to_close, t);
561 INHERIT (to_attach, t);
562 INHERIT (to_post_attach, t);
563 INHERIT (to_require_attach, t);
564 INHERIT (to_detach, t);
565 INHERIT (to_require_detach, t);
566 INHERIT (to_resume, t);
567 INHERIT (to_wait, t);
568 INHERIT (to_post_wait, t);
569 INHERIT (to_fetch_registers, t);
570 INHERIT (to_store_registers, t);
571 INHERIT (to_prepare_to_store, t);
572 INHERIT (to_xfer_memory, t);
573 INHERIT (to_files_info, t);
574 INHERIT (to_insert_breakpoint, t);
575 INHERIT (to_remove_breakpoint, t);
576 INHERIT (to_can_use_hw_breakpoint, t);
577 INHERIT (to_insert_hw_breakpoint, t);
578 INHERIT (to_remove_hw_breakpoint, t);
579 INHERIT (to_insert_watchpoint, t);
580 INHERIT (to_remove_watchpoint, t);
581 INHERIT (to_stopped_data_address, t);
582 INHERIT (to_stopped_by_watchpoint, t);
583 INHERIT (to_region_size_ok_for_hw_watchpoint, t);
584 INHERIT (to_terminal_init, t);
585 INHERIT (to_terminal_inferior, t);
586 INHERIT (to_terminal_ours_for_output, t);
587 INHERIT (to_terminal_ours, t);
588 INHERIT (to_terminal_save_ours, t);
589 INHERIT (to_terminal_info, t);
590 INHERIT (to_kill, t);
591 INHERIT (to_load, t);
592 INHERIT (to_lookup_symbol, t);
593 INHERIT (to_create_inferior, t);
594 INHERIT (to_post_startup_inferior, t);
595 INHERIT (to_acknowledge_created_inferior, t);
596 INHERIT (to_insert_fork_catchpoint, t);
597 INHERIT (to_remove_fork_catchpoint, t);
598 INHERIT (to_insert_vfork_catchpoint, t);
599 INHERIT (to_remove_vfork_catchpoint, t);
600 INHERIT (to_follow_fork, t);
601 INHERIT (to_insert_exec_catchpoint, t);
602 INHERIT (to_remove_exec_catchpoint, t);
603 INHERIT (to_reported_exec_events_per_exec_call, t);
604 INHERIT (to_has_exited, t);
605 INHERIT (to_mourn_inferior, t);
606 INHERIT (to_can_run, t);
607 INHERIT (to_notice_signals, t);
608 INHERIT (to_thread_alive, t);
609 INHERIT (to_find_new_threads, t);
610 INHERIT (to_pid_to_str, t);
611 INHERIT (to_extra_thread_info, t);
612 INHERIT (to_stop, t);
613 INHERIT (to_query, t);
614 INHERIT (to_rcmd, t);
615 INHERIT (to_enable_exception_callback, t);
616 INHERIT (to_get_current_exception_event, t);
617 INHERIT (to_pid_to_exec_file, t);
618 INHERIT (to_stratum, t);
619 INHERIT (DONT_USE, t);
620 INHERIT (to_has_all_memory, t);
621 INHERIT (to_has_memory, t);
622 INHERIT (to_has_stack, t);
623 INHERIT (to_has_registers, t);
624 INHERIT (to_has_execution, t);
625 INHERIT (to_has_thread_control, t);
626 INHERIT (to_sections, t);
627 INHERIT (to_sections_end, t);
628 INHERIT (to_can_async_p, t);
629 INHERIT (to_is_async_p, t);
630 INHERIT (to_async, t);
631 INHERIT (to_async_mask_value, t);
632 INHERIT (to_find_memory_regions, t);
633 INHERIT (to_make_corefile_notes, t);
634 INHERIT (to_get_thread_local_address, t);
635 INHERIT (to_magic, t);
641 /* Push a new target type into the stack of the existing target accessors,
642 possibly superseding some of the existing accessors.
644 Result is zero if the pushed target ended up on top of the stack,
645 nonzero if at least one target is on top of it.
647 Rather than allow an empty stack, we always have the dummy target at
648 the bottom stratum, so we can call the function vectors without
652 push_target (struct target_ops *t)
654 struct target_stack_item *cur, *prev, *tmp;
656 /* Check magic number. If wrong, it probably means someone changed
657 the struct definition, but not all the places that initialize one. */
658 if (t->to_magic != OPS_MAGIC)
660 fprintf_unfiltered (gdb_stderr,
661 "Magic number of %s target struct wrong\n",
663 internal_error (__FILE__, __LINE__, "failed internal consistency check");
666 /* Find the proper stratum to install this target in. */
668 for (prev = NULL, cur = target_stack; cur; prev = cur, cur = cur->next)
670 if ((int) (t->to_stratum) >= (int) (cur->target_ops->to_stratum))
674 /* If there's already targets at this stratum, remove them. */
677 while (t->to_stratum == cur->target_ops->to_stratum)
679 /* There's already something on this stratum. Close it off. */
680 if (cur->target_ops->to_close)
681 (cur->target_ops->to_close) (0);
683 prev->next = cur->next; /* Unchain old target_ops */
685 target_stack = cur->next; /* Unchain first on list */
691 /* We have removed all targets in our stratum, now add the new one. */
693 tmp = (struct target_stack_item *)
694 xmalloc (sizeof (struct target_stack_item));
703 update_current_target ();
705 cleanup_target (¤t_target); /* Fill in the gaps */
708 setup_target_debug ();
713 /* Remove a target_ops vector from the stack, wherever it may be.
714 Return how many times it was removed (0 or 1). */
717 unpush_target (struct target_ops *t)
719 struct target_stack_item *cur, *prev;
722 t->to_close (0); /* Let it clean up */
724 /* Look for the specified target. Note that we assume that a target
725 can only occur once in the target stack. */
727 for (cur = target_stack, prev = NULL; cur; prev = cur, cur = cur->next)
728 if (cur->target_ops == t)
732 return 0; /* Didn't find target_ops, quit now */
734 /* Unchain the target */
737 target_stack = cur->next;
739 prev->next = cur->next;
741 xfree (cur); /* Release the target_stack_item */
743 update_current_target ();
744 cleanup_target (¤t_target);
752 (current_target.to_close) (0); /* Let it clean up */
753 if (unpush_target (target_stack->target_ops) == 1)
756 fprintf_unfiltered (gdb_stderr,
757 "pop_target couldn't find target %s\n",
758 current_target.to_shortname);
759 internal_error (__FILE__, __LINE__, "failed internal consistency check");
763 #define MIN(A, B) (((A) <= (B)) ? (A) : (B))
765 /* target_read_string -- read a null terminated string, up to LEN bytes,
766 from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful.
767 Set *STRING to a pointer to malloc'd memory containing the data; the caller
768 is responsible for freeing it. Return the number of bytes successfully
772 target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop)
774 int tlen, origlen, offset, i;
778 int buffer_allocated;
780 unsigned int nbytes_read = 0;
782 /* Small for testing. */
783 buffer_allocated = 4;
784 buffer = xmalloc (buffer_allocated);
791 tlen = MIN (len, 4 - (memaddr & 3));
792 offset = memaddr & 3;
794 errcode = target_xfer_memory (memaddr & ~3, buf, 4, 0);
797 /* The transfer request might have crossed the boundary to an
798 unallocated region of memory. Retry the transfer, requesting
802 errcode = target_xfer_memory (memaddr, buf, 1, 0);
807 if (bufptr - buffer + tlen > buffer_allocated)
810 bytes = bufptr - buffer;
811 buffer_allocated *= 2;
812 buffer = xrealloc (buffer, buffer_allocated);
813 bufptr = buffer + bytes;
816 for (i = 0; i < tlen; i++)
818 *bufptr++ = buf[i + offset];
819 if (buf[i + offset] == '\000')
821 nbytes_read += i + 1;
838 /* Read LEN bytes of target memory at address MEMADDR, placing the results in
839 GDB's memory at MYADDR. Returns either 0 for success or an errno value
842 If an error occurs, no guarantee is made about the contents of the data at
843 MYADDR. In particular, the caller should not depend upon partial reads
844 filling the buffer with good data. There is no way for the caller to know
845 how much good data might have been transfered anyway. Callers that can
846 deal with partial reads should call target_read_memory_partial. */
849 target_read_memory (CORE_ADDR memaddr, char *myaddr, int len)
851 return target_xfer_memory (memaddr, myaddr, len, 0);
855 target_write_memory (CORE_ADDR memaddr, char *myaddr, int len)
857 return target_xfer_memory (memaddr, myaddr, len, 1);
860 static int trust_readonly = 0;
862 /* Move memory to or from the targets. The top target gets priority;
863 if it cannot handle it, it is offered to the next one down, etc.
865 Result is -1 on error, or the number of bytes transfered. */
868 do_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write,
869 struct mem_attrib *attrib)
873 struct target_ops *t;
874 struct target_stack_item *item;
876 /* Zero length requests are ok and require no work. */
880 /* to_xfer_memory is not guaranteed to set errno, even when it returns
884 if (!write && trust_readonly)
886 /* User-settable option, "trust-readonly-sections". If true,
887 then memory from any SEC_READONLY bfd section may be read
888 directly from the bfd file. */
890 struct section_table *secp;
892 for (secp = current_target.to_sections;
893 secp < current_target.to_sections_end;
896 if (bfd_get_section_flags (secp->bfd, secp->the_bfd_section)
898 if (memaddr >= secp->addr && memaddr < secp->endaddr)
899 return xfer_memory (memaddr, myaddr, len, 0,
900 attrib, ¤t_target);
904 /* The quick case is that the top target can handle the transfer. */
905 res = current_target.to_xfer_memory
906 (memaddr, myaddr, len, write, attrib, ¤t_target);
908 /* If res <= 0 then we call it again in the loop. Ah well. */
911 for (item = target_stack; item; item = item->next)
913 t = item->target_ops;
914 if (!t->to_has_memory)
917 res = t->to_xfer_memory (memaddr, myaddr, len, write, attrib, t);
919 break; /* Handled all or part of xfer */
920 if (t->to_has_all_memory)
932 /* Perform a memory transfer. Iterate until the entire region has
935 Result is 0 or errno value. */
938 target_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write)
942 struct mem_region *region;
944 /* Zero length requests are ok and require no work. */
952 region = lookup_mem_region(memaddr);
953 if (memaddr + len < region->hi)
956 reg_len = region->hi - memaddr;
958 switch (region->attrib.mode)
973 if (region->attrib.cache)
974 res = dcache_xfer_memory (target_dcache, memaddr, myaddr,
977 res = do_xfer_memory (memaddr, myaddr, reg_len, write,
982 /* If this address is for nonexistent memory, read zeros
983 if reading, or do nothing if writing. Return
986 memset (myaddr, 0, len);
1000 return 0; /* We managed to cover it all somehow. */
1004 /* Perform a partial memory transfer.
1006 Result is -1 on error, or the number of bytes transfered. */
1009 target_xfer_memory_partial (CORE_ADDR memaddr, char *myaddr, int len,
1010 int write_p, int *err)
1014 struct mem_region *region;
1016 /* Zero length requests are ok and require no work. */
1023 region = lookup_mem_region(memaddr);
1024 if (memaddr + len < region->hi)
1027 reg_len = region->hi - memaddr;
1029 switch (region->attrib.mode)
1048 if (region->attrib.cache)
1049 res = dcache_xfer_memory (target_dcache, memaddr, myaddr,
1052 res = do_xfer_memory (memaddr, myaddr, reg_len, write_p,
1070 target_read_memory_partial (CORE_ADDR memaddr, char *buf, int len, int *err)
1072 return target_xfer_memory_partial (memaddr, buf, len, 0, err);
1076 target_write_memory_partial (CORE_ADDR memaddr, char *buf, int len, int *err)
1078 return target_xfer_memory_partial (memaddr, buf, len, 1, err);
1083 target_info (char *args, int from_tty)
1085 struct target_ops *t;
1086 struct target_stack_item *item;
1087 int has_all_mem = 0;
1089 if (symfile_objfile != NULL)
1090 printf_unfiltered ("Symbols from \"%s\".\n", symfile_objfile->name);
1092 #ifdef FILES_INFO_HOOK
1093 if (FILES_INFO_HOOK ())
1097 for (item = target_stack; item; item = item->next)
1099 t = item->target_ops;
1101 if (!t->to_has_memory)
1104 if ((int) (t->to_stratum) <= (int) dummy_stratum)
1107 printf_unfiltered ("\tWhile running this, GDB does not access memory from...\n");
1108 printf_unfiltered ("%s:\n", t->to_longname);
1109 (t->to_files_info) (t);
1110 has_all_mem = t->to_has_all_memory;
1114 /* This is to be called by the open routine before it does
1118 target_preopen (int from_tty)
1122 if (target_has_execution)
1125 || query ("A program is being debugged already. Kill it? "))
1128 error ("Program not killed.");
1131 /* Calling target_kill may remove the target from the stack. But if
1132 it doesn't (which seems like a win for UDI), remove it now. */
1134 if (target_has_execution)
1138 /* Detach a target after doing deferred register stores. */
1141 target_detach (char *args, int from_tty)
1143 /* Handle any optimized stores to the inferior. */
1144 #ifdef DO_DEFERRED_STORES
1147 (current_target.to_detach) (args, from_tty);
1151 target_link (char *modname, CORE_ADDR *t_reloc)
1153 if (STREQ (current_target.to_shortname, "rombug"))
1155 (current_target.to_lookup_symbol) (modname, t_reloc);
1157 error ("Unable to link to %s and get relocation in rombug", modname);
1160 *t_reloc = (CORE_ADDR) -1;
1164 target_async_mask (int mask)
1166 int saved_async_masked_status = target_async_mask_value;
1167 target_async_mask_value = mask;
1168 return saved_async_masked_status;
1171 /* Look through the list of possible targets for a target that can
1172 execute a run or attach command without any other data. This is
1173 used to locate the default process stratum.
1175 Result is always valid (error() is called for errors). */
1177 static struct target_ops *
1178 find_default_run_target (char *do_mesg)
1180 struct target_ops **t;
1181 struct target_ops *runable = NULL;
1186 for (t = target_structs; t < target_structs + target_struct_size;
1189 if ((*t)->to_can_run && target_can_run (*t))
1197 error ("Don't know how to %s. Try \"help target\".", do_mesg);
1203 find_default_attach (char *args, int from_tty)
1205 struct target_ops *t;
1207 t = find_default_run_target ("attach");
1208 (t->to_attach) (args, from_tty);
1213 find_default_require_attach (char *args, int from_tty)
1215 struct target_ops *t;
1217 t = find_default_run_target ("require_attach");
1218 (t->to_require_attach) (args, from_tty);
1223 find_default_require_detach (int pid, char *args, int from_tty)
1225 struct target_ops *t;
1227 t = find_default_run_target ("require_detach");
1228 (t->to_require_detach) (pid, args, from_tty);
1233 find_default_create_inferior (char *exec_file, char *allargs, char **env)
1235 struct target_ops *t;
1237 t = find_default_run_target ("run");
1238 (t->to_create_inferior) (exec_file, allargs, env);
1243 default_region_size_ok_for_hw_watchpoint (int byte_count)
1245 return (byte_count <= REGISTER_SIZE);
1261 return_minus_one (void)
1267 * Resize the to_sections pointer. Also make sure that anyone that
1268 * was holding on to an old value of it gets updated.
1269 * Returns the old size.
1273 target_resize_to_sections (struct target_ops *target, int num_added)
1275 struct target_ops **t;
1276 struct section_table *old_value;
1279 old_value = target->to_sections;
1281 if (target->to_sections)
1283 old_count = target->to_sections_end - target->to_sections;
1284 target->to_sections = (struct section_table *)
1285 xrealloc ((char *) target->to_sections,
1286 (sizeof (struct section_table)) * (num_added + old_count));
1291 target->to_sections = (struct section_table *)
1292 xmalloc ((sizeof (struct section_table)) * num_added);
1294 target->to_sections_end = target->to_sections + (num_added + old_count);
1296 /* Check to see if anyone else was pointing to this structure.
1297 If old_value was null, then no one was. */
1301 for (t = target_structs; t < target_structs + target_struct_size;
1304 if ((*t)->to_sections == old_value)
1306 (*t)->to_sections = target->to_sections;
1307 (*t)->to_sections_end = target->to_sections_end;
1316 /* Remove all target sections taken from ABFD.
1318 Scan the current target stack for targets whose section tables
1319 refer to sections from BFD, and remove those sections. We use this
1320 when we notice that the inferior has unloaded a shared object, for
1323 remove_target_sections (bfd *abfd)
1325 struct target_ops **t;
1327 for (t = target_structs; t < target_structs + target_struct_size; t++)
1329 struct section_table *src, *dest;
1331 dest = (*t)->to_sections;
1332 for (src = (*t)->to_sections; src < (*t)->to_sections_end; src++)
1333 if (src->bfd != abfd)
1335 /* Keep this section. */
1336 if (dest < src) *dest = *src;
1340 /* If we've dropped any sections, resize the section table. */
1342 target_resize_to_sections (*t, dest - src);
1349 /* Find a single runnable target in the stack and return it. If for
1350 some reason there is more than one, return NULL. */
1353 find_run_target (void)
1355 struct target_ops **t;
1356 struct target_ops *runable = NULL;
1361 for (t = target_structs; t < target_structs + target_struct_size; ++t)
1363 if ((*t)->to_can_run && target_can_run (*t))
1370 return (count == 1 ? runable : NULL);
1373 /* Find a single core_stratum target in the list of targets and return it.
1374 If for some reason there is more than one, return NULL. */
1377 find_core_target (void)
1379 struct target_ops **t;
1380 struct target_ops *runable = NULL;
1385 for (t = target_structs; t < target_structs + target_struct_size;
1388 if ((*t)->to_stratum == core_stratum)
1395 return (count == 1 ? runable : NULL);
1399 * Find the next target down the stack from the specified target.
1403 find_target_beneath (struct target_ops *t)
1405 struct target_stack_item *cur;
1407 for (cur = target_stack; cur; cur = cur->next)
1408 if (cur->target_ops == t)
1411 if (cur == NULL || cur->next == NULL)
1414 return cur->next->target_ops;
1418 /* The inferior process has died. Long live the inferior! */
1421 generic_mourn_inferior (void)
1423 extern int show_breakpoint_hit_counts;
1425 inferior_ptid = null_ptid;
1427 breakpoint_init_inferior (inf_exited);
1428 registers_changed ();
1430 #ifdef CLEAR_DEFERRED_STORES
1431 /* Delete any pending stores to the inferior... */
1432 CLEAR_DEFERRED_STORES;
1435 reopen_exec_file ();
1436 reinit_frame_cache ();
1438 /* It is confusing to the user for ignore counts to stick around
1439 from previous runs of the inferior. So clear them. */
1440 /* However, it is more confusing for the ignore counts to disappear when
1441 using hit counts. So don't clear them if we're counting hits. */
1442 if (!show_breakpoint_hit_counts)
1443 breakpoint_clear_ignore_counts ();
1449 /* Helper function for child_wait and the Lynx derivatives of child_wait.
1450 HOSTSTATUS is the waitstatus from wait() or the equivalent; store our
1451 translation of that in OURSTATUS. */
1453 store_waitstatus (struct target_waitstatus *ourstatus, int hoststatus)
1455 #ifdef CHILD_SPECIAL_WAITSTATUS
1456 /* CHILD_SPECIAL_WAITSTATUS should return nonzero and set *OURSTATUS
1457 if it wants to deal with hoststatus. */
1458 if (CHILD_SPECIAL_WAITSTATUS (ourstatus, hoststatus))
1462 if (WIFEXITED (hoststatus))
1464 ourstatus->kind = TARGET_WAITKIND_EXITED;
1465 ourstatus->value.integer = WEXITSTATUS (hoststatus);
1467 else if (!WIFSTOPPED (hoststatus))
1469 ourstatus->kind = TARGET_WAITKIND_SIGNALLED;
1470 ourstatus->value.sig = target_signal_from_host (WTERMSIG (hoststatus));
1474 ourstatus->kind = TARGET_WAITKIND_STOPPED;
1475 ourstatus->value.sig = target_signal_from_host (WSTOPSIG (hoststatus));
1479 /* Returns zero to leave the inferior alone, one to interrupt it. */
1480 int (*target_activity_function) (void);
1481 int target_activity_fd;
1483 /* Convert a normal process ID to a string. Returns the string in a static
1487 normal_pid_to_str (ptid_t ptid)
1489 static char buf[30];
1491 sprintf (buf, "process %d", PIDGET (ptid));
1495 /* Some targets (such as ttrace-based HPUX) don't allow us to request
1496 notification of inferior events such as fork and vork immediately
1497 after the inferior is created. (This because of how gdb gets an
1498 inferior created via invoking a shell to do it. In such a scenario,
1499 if the shell init file has commands in it, the shell will fork and
1500 exec for each of those commands, and we will see each such fork
1503 This function is used by all targets that allow us to request
1504 notification of forks, etc at inferior creation time; e.g., in
1505 target_acknowledge_forked_child.
1508 normal_target_post_startup_inferior (ptid_t ptid)
1510 /* This space intentionally left blank. */
1513 /* Error-catcher for target_find_memory_regions */
1515 static int dummy_find_memory_regions (int (*ignore1) (), void *ignore2)
1517 error ("No target.");
1521 /* Error-catcher for target_make_corefile_notes */
1523 static char * dummy_make_corefile_notes (bfd *ignore1, int *ignore2)
1525 error ("No target.");
1529 /* Set up the handful of non-empty slots needed by the dummy target
1533 init_dummy_target (void)
1535 dummy_target.to_shortname = "None";
1536 dummy_target.to_longname = "None";
1537 dummy_target.to_doc = "";
1538 dummy_target.to_attach = find_default_attach;
1539 dummy_target.to_require_attach = find_default_require_attach;
1540 dummy_target.to_require_detach = find_default_require_detach;
1541 dummy_target.to_create_inferior = find_default_create_inferior;
1542 dummy_target.to_pid_to_str = normal_pid_to_str;
1543 dummy_target.to_stratum = dummy_stratum;
1544 dummy_target.to_find_memory_regions = dummy_find_memory_regions;
1545 dummy_target.to_make_corefile_notes = dummy_make_corefile_notes;
1546 dummy_target.to_magic = OPS_MAGIC;
1550 static struct target_ops debug_target;
1553 debug_to_open (char *args, int from_tty)
1555 debug_target.to_open (args, from_tty);
1557 fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty);
1561 debug_to_close (int quitting)
1563 debug_target.to_close (quitting);
1565 fprintf_unfiltered (gdb_stdlog, "target_close (%d)\n", quitting);
1569 debug_to_attach (char *args, int from_tty)
1571 debug_target.to_attach (args, from_tty);
1573 fprintf_unfiltered (gdb_stdlog, "target_attach (%s, %d)\n", args, from_tty);
1578 debug_to_post_attach (int pid)
1580 debug_target.to_post_attach (pid);
1582 fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid);
1586 debug_to_require_attach (char *args, int from_tty)
1588 debug_target.to_require_attach (args, from_tty);
1590 fprintf_unfiltered (gdb_stdlog,
1591 "target_require_attach (%s, %d)\n", args, from_tty);
1595 debug_to_detach (char *args, int from_tty)
1597 debug_target.to_detach (args, from_tty);
1599 fprintf_unfiltered (gdb_stdlog, "target_detach (%s, %d)\n", args, from_tty);
1603 debug_to_require_detach (int pid, char *args, int from_tty)
1605 debug_target.to_require_detach (pid, args, from_tty);
1607 fprintf_unfiltered (gdb_stdlog,
1608 "target_require_detach (%d, %s, %d)\n", pid, args, from_tty);
1612 debug_to_resume (ptid_t ptid, int step, enum target_signal siggnal)
1614 debug_target.to_resume (ptid, step, siggnal);
1616 fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n", PIDGET (ptid),
1617 step ? "step" : "continue",
1618 target_signal_to_name (siggnal));
1622 debug_to_wait (ptid_t ptid, struct target_waitstatus *status)
1626 retval = debug_target.to_wait (ptid, status);
1628 fprintf_unfiltered (gdb_stdlog,
1629 "target_wait (%d, status) = %d, ", PIDGET (ptid),
1631 fprintf_unfiltered (gdb_stdlog, "status->kind = ");
1632 switch (status->kind)
1634 case TARGET_WAITKIND_EXITED:
1635 fprintf_unfiltered (gdb_stdlog, "exited, status = %d\n",
1636 status->value.integer);
1638 case TARGET_WAITKIND_STOPPED:
1639 fprintf_unfiltered (gdb_stdlog, "stopped, signal = %s\n",
1640 target_signal_to_name (status->value.sig));
1642 case TARGET_WAITKIND_SIGNALLED:
1643 fprintf_unfiltered (gdb_stdlog, "signalled, signal = %s\n",
1644 target_signal_to_name (status->value.sig));
1646 case TARGET_WAITKIND_LOADED:
1647 fprintf_unfiltered (gdb_stdlog, "loaded\n");
1649 case TARGET_WAITKIND_FORKED:
1650 fprintf_unfiltered (gdb_stdlog, "forked\n");
1652 case TARGET_WAITKIND_VFORKED:
1653 fprintf_unfiltered (gdb_stdlog, "vforked\n");
1655 case TARGET_WAITKIND_EXECD:
1656 fprintf_unfiltered (gdb_stdlog, "execd\n");
1658 case TARGET_WAITKIND_SPURIOUS:
1659 fprintf_unfiltered (gdb_stdlog, "spurious\n");
1662 fprintf_unfiltered (gdb_stdlog, "unknown???\n");
1670 debug_to_post_wait (ptid_t ptid, int status)
1672 debug_target.to_post_wait (ptid, status);
1674 fprintf_unfiltered (gdb_stdlog, "target_post_wait (%d, %d)\n",
1675 PIDGET (ptid), status);
1679 debug_print_register (const char * func, int regno)
1681 fprintf_unfiltered (gdb_stdlog, "%s ", func);
1682 if (regno >= 0 && regno < NUM_REGS + NUM_PSEUDO_REGS
1683 && REGISTER_NAME (regno) != NULL && REGISTER_NAME (regno)[0] != '\0')
1684 fprintf_unfiltered (gdb_stdlog, "(%s)", REGISTER_NAME (regno));
1686 fprintf_unfiltered (gdb_stdlog, "(%d)", regno);
1690 unsigned char *buf = alloca (MAX_REGISTER_RAW_SIZE);
1691 deprecated_read_register_gen (regno, buf);
1692 fprintf_unfiltered (gdb_stdlog, " = ");
1693 for (i = 0; i < REGISTER_RAW_SIZE (regno); i++)
1695 fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]);
1697 if (REGISTER_RAW_SIZE (regno) <= sizeof (LONGEST))
1699 fprintf_unfiltered (gdb_stdlog, " 0x%s %s",
1700 paddr_nz (read_register (regno)),
1701 paddr_d (read_register (regno)));
1704 fprintf_unfiltered (gdb_stdlog, "\n");
1708 debug_to_fetch_registers (int regno)
1710 debug_target.to_fetch_registers (regno);
1711 debug_print_register ("target_fetch_registers", regno);
1715 debug_to_store_registers (int regno)
1717 debug_target.to_store_registers (regno);
1718 debug_print_register ("target_store_registers", regno);
1719 fprintf_unfiltered (gdb_stdlog, "\n");
1723 debug_to_prepare_to_store (void)
1725 debug_target.to_prepare_to_store ();
1727 fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n");
1731 debug_to_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write,
1732 struct mem_attrib *attrib,
1733 struct target_ops *target)
1737 retval = debug_target.to_xfer_memory (memaddr, myaddr, len, write,
1740 fprintf_unfiltered (gdb_stdlog,
1741 "target_xfer_memory (0x%x, xxx, %d, %s, xxx) = %d",
1742 (unsigned int) memaddr, /* possable truncate long long */
1743 len, write ? "write" : "read", retval);
1751 fputs_unfiltered (", bytes =", gdb_stdlog);
1752 for (i = 0; i < retval; i++)
1754 if ((((long) &(myaddr[i])) & 0xf) == 0)
1755 fprintf_unfiltered (gdb_stdlog, "\n");
1756 fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff);
1760 fputc_unfiltered ('\n', gdb_stdlog);
1766 debug_to_files_info (struct target_ops *target)
1768 debug_target.to_files_info (target);
1770 fprintf_unfiltered (gdb_stdlog, "target_files_info (xxx)\n");
1774 debug_to_insert_breakpoint (CORE_ADDR addr, char *save)
1778 retval = debug_target.to_insert_breakpoint (addr, save);
1780 fprintf_unfiltered (gdb_stdlog,
1781 "target_insert_breakpoint (0x%lx, xxx) = %ld\n",
1782 (unsigned long) addr,
1783 (unsigned long) retval);
1788 debug_to_remove_breakpoint (CORE_ADDR addr, char *save)
1792 retval = debug_target.to_remove_breakpoint (addr, save);
1794 fprintf_unfiltered (gdb_stdlog,
1795 "target_remove_breakpoint (0x%lx, xxx) = %ld\n",
1796 (unsigned long) addr,
1797 (unsigned long) retval);
1802 debug_to_can_use_hw_breakpoint (int type, int cnt, int from_tty)
1806 retval = debug_target.to_can_use_hw_breakpoint (type, cnt, from_tty);
1808 fprintf_unfiltered (gdb_stdlog,
1809 "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n",
1810 (unsigned long) type,
1811 (unsigned long) cnt,
1812 (unsigned long) from_tty,
1813 (unsigned long) retval);
1818 debug_to_region_size_ok_for_hw_watchpoint (int byte_count)
1822 retval = debug_target.to_region_size_ok_for_hw_watchpoint (byte_count);
1824 fprintf_unfiltered (gdb_stdlog,
1825 "TARGET_REGION_SIZE_OK_FOR_HW_WATCHPOINT (%ld) = 0x%lx\n",
1826 (unsigned long) byte_count,
1827 (unsigned long) retval);
1832 debug_to_stopped_by_watchpoint (void)
1836 retval = debug_target.to_stopped_by_watchpoint ();
1838 fprintf_unfiltered (gdb_stdlog,
1839 "STOPPED_BY_WATCHPOINT () = %ld\n",
1840 (unsigned long) retval);
1845 debug_to_stopped_data_address (void)
1849 retval = debug_target.to_stopped_data_address ();
1851 fprintf_unfiltered (gdb_stdlog,
1852 "target_stopped_data_address () = 0x%lx\n",
1853 (unsigned long) retval);
1858 debug_to_insert_hw_breakpoint (CORE_ADDR addr, char *save)
1862 retval = debug_target.to_insert_hw_breakpoint (addr, save);
1864 fprintf_unfiltered (gdb_stdlog,
1865 "target_insert_hw_breakpoint (0x%lx, xxx) = %ld\n",
1866 (unsigned long) addr,
1867 (unsigned long) retval);
1872 debug_to_remove_hw_breakpoint (CORE_ADDR addr, char *save)
1876 retval = debug_target.to_remove_hw_breakpoint (addr, save);
1878 fprintf_unfiltered (gdb_stdlog,
1879 "target_remove_hw_breakpoint (0x%lx, xxx) = %ld\n",
1880 (unsigned long) addr,
1881 (unsigned long) retval);
1886 debug_to_insert_watchpoint (CORE_ADDR addr, int len, int type)
1890 retval = debug_target.to_insert_watchpoint (addr, len, type);
1892 fprintf_unfiltered (gdb_stdlog,
1893 "target_insert_watchpoint (0x%lx, %d, %d) = %ld\n",
1894 (unsigned long) addr, len, type, (unsigned long) retval);
1899 debug_to_remove_watchpoint (CORE_ADDR addr, int len, int type)
1903 retval = debug_target.to_insert_watchpoint (addr, len, type);
1905 fprintf_unfiltered (gdb_stdlog,
1906 "target_insert_watchpoint (0x%lx, %d, %d) = %ld\n",
1907 (unsigned long) addr, len, type, (unsigned long) retval);
1912 debug_to_terminal_init (void)
1914 debug_target.to_terminal_init ();
1916 fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n");
1920 debug_to_terminal_inferior (void)
1922 debug_target.to_terminal_inferior ();
1924 fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n");
1928 debug_to_terminal_ours_for_output (void)
1930 debug_target.to_terminal_ours_for_output ();
1932 fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n");
1936 debug_to_terminal_ours (void)
1938 debug_target.to_terminal_ours ();
1940 fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n");
1944 debug_to_terminal_save_ours (void)
1946 debug_target.to_terminal_save_ours ();
1948 fprintf_unfiltered (gdb_stdlog, "target_terminal_save_ours ()\n");
1952 debug_to_terminal_info (char *arg, int from_tty)
1954 debug_target.to_terminal_info (arg, from_tty);
1956 fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg,
1961 debug_to_kill (void)
1963 debug_target.to_kill ();
1965 fprintf_unfiltered (gdb_stdlog, "target_kill ()\n");
1969 debug_to_load (char *args, int from_tty)
1971 debug_target.to_load (args, from_tty);
1973 fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty);
1977 debug_to_lookup_symbol (char *name, CORE_ADDR *addrp)
1981 retval = debug_target.to_lookup_symbol (name, addrp);
1983 fprintf_unfiltered (gdb_stdlog, "target_lookup_symbol (%s, xxx)\n", name);
1989 debug_to_create_inferior (char *exec_file, char *args, char **env)
1991 debug_target.to_create_inferior (exec_file, args, env);
1993 fprintf_unfiltered (gdb_stdlog, "target_create_inferior (%s, %s, xxx)\n",
1998 debug_to_post_startup_inferior (ptid_t ptid)
2000 debug_target.to_post_startup_inferior (ptid);
2002 fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n",
2007 debug_to_acknowledge_created_inferior (int pid)
2009 debug_target.to_acknowledge_created_inferior (pid);
2011 fprintf_unfiltered (gdb_stdlog, "target_acknowledge_created_inferior (%d)\n",
2016 debug_to_insert_fork_catchpoint (int pid)
2020 retval = debug_target.to_insert_fork_catchpoint (pid);
2022 fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d) = %d\n",
2029 debug_to_remove_fork_catchpoint (int pid)
2033 retval = debug_target.to_remove_fork_catchpoint (pid);
2035 fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n",
2042 debug_to_insert_vfork_catchpoint (int pid)
2046 retval = debug_target.to_insert_vfork_catchpoint (pid);
2048 fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d)= %d\n",
2055 debug_to_remove_vfork_catchpoint (int pid)
2059 retval = debug_target.to_remove_vfork_catchpoint (pid);
2061 fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n",
2068 debug_to_follow_fork (int follow_child)
2070 int retval = debug_target.to_follow_fork (follow_child);
2072 fprintf_unfiltered (gdb_stdlog, "target_follow_fork (%d) = %d\n",
2073 follow_child, retval);
2079 debug_to_insert_exec_catchpoint (int pid)
2083 retval = debug_target.to_insert_exec_catchpoint (pid);
2085 fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d) = %d\n",
2092 debug_to_remove_exec_catchpoint (int pid)
2096 retval = debug_target.to_remove_exec_catchpoint (pid);
2098 fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n",
2105 debug_to_reported_exec_events_per_exec_call (void)
2107 int reported_exec_events;
2109 reported_exec_events = debug_target.to_reported_exec_events_per_exec_call ();
2111 fprintf_unfiltered (gdb_stdlog,
2112 "target_reported_exec_events_per_exec_call () = %d\n",
2113 reported_exec_events);
2115 return reported_exec_events;
2119 debug_to_has_exited (int pid, int wait_status, int *exit_status)
2123 has_exited = debug_target.to_has_exited (pid, wait_status, exit_status);
2125 fprintf_unfiltered (gdb_stdlog, "target_has_exited (%d, %d, %d) = %d\n",
2126 pid, wait_status, *exit_status, has_exited);
2132 debug_to_mourn_inferior (void)
2134 debug_target.to_mourn_inferior ();
2136 fprintf_unfiltered (gdb_stdlog, "target_mourn_inferior ()\n");
2140 debug_to_can_run (void)
2144 retval = debug_target.to_can_run ();
2146 fprintf_unfiltered (gdb_stdlog, "target_can_run () = %d\n", retval);
2152 debug_to_notice_signals (ptid_t ptid)
2154 debug_target.to_notice_signals (ptid);
2156 fprintf_unfiltered (gdb_stdlog, "target_notice_signals (%d)\n",
2161 debug_to_thread_alive (ptid_t ptid)
2165 retval = debug_target.to_thread_alive (ptid);
2167 fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n",
2168 PIDGET (ptid), retval);
2174 debug_to_find_new_threads (void)
2176 debug_target.to_find_new_threads ();
2178 fputs_unfiltered ("target_find_new_threads ()\n", gdb_stdlog);
2182 debug_to_stop (void)
2184 debug_target.to_stop ();
2186 fprintf_unfiltered (gdb_stdlog, "target_stop ()\n");
2190 debug_to_query (int type, char *req, char *resp, int *siz)
2194 retval = debug_target.to_query (type, req, resp, siz);
2196 fprintf_unfiltered (gdb_stdlog, "target_query (%c, %s, %s, %d) = %d\n", type, req, resp, *siz, retval);
2202 debug_to_rcmd (char *command,
2203 struct ui_file *outbuf)
2205 debug_target.to_rcmd (command, outbuf);
2206 fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command);
2209 static struct symtab_and_line *
2210 debug_to_enable_exception_callback (enum exception_event_kind kind, int enable)
2212 struct symtab_and_line *result;
2213 result = debug_target.to_enable_exception_callback (kind, enable);
2214 fprintf_unfiltered (gdb_stdlog,
2215 "target get_exception_callback_sal (%d, %d)\n",
2220 static struct exception_event_record *
2221 debug_to_get_current_exception_event (void)
2223 struct exception_event_record *result;
2224 result = debug_target.to_get_current_exception_event ();
2225 fprintf_unfiltered (gdb_stdlog, "target get_current_exception_event ()\n");
2230 debug_to_pid_to_exec_file (int pid)
2234 exec_file = debug_target.to_pid_to_exec_file (pid);
2236 fprintf_unfiltered (gdb_stdlog, "target_pid_to_exec_file (%d) = %s\n",
2243 setup_target_debug (void)
2245 memcpy (&debug_target, ¤t_target, sizeof debug_target);
2247 current_target.to_open = debug_to_open;
2248 current_target.to_close = debug_to_close;
2249 current_target.to_attach = debug_to_attach;
2250 current_target.to_post_attach = debug_to_post_attach;
2251 current_target.to_require_attach = debug_to_require_attach;
2252 current_target.to_detach = debug_to_detach;
2253 current_target.to_require_detach = debug_to_require_detach;
2254 current_target.to_resume = debug_to_resume;
2255 current_target.to_wait = debug_to_wait;
2256 current_target.to_post_wait = debug_to_post_wait;
2257 current_target.to_fetch_registers = debug_to_fetch_registers;
2258 current_target.to_store_registers = debug_to_store_registers;
2259 current_target.to_prepare_to_store = debug_to_prepare_to_store;
2260 current_target.to_xfer_memory = debug_to_xfer_memory;
2261 current_target.to_files_info = debug_to_files_info;
2262 current_target.to_insert_breakpoint = debug_to_insert_breakpoint;
2263 current_target.to_remove_breakpoint = debug_to_remove_breakpoint;
2264 current_target.to_can_use_hw_breakpoint = debug_to_can_use_hw_breakpoint;
2265 current_target.to_insert_hw_breakpoint = debug_to_insert_hw_breakpoint;
2266 current_target.to_remove_hw_breakpoint = debug_to_remove_hw_breakpoint;
2267 current_target.to_insert_watchpoint = debug_to_insert_watchpoint;
2268 current_target.to_remove_watchpoint = debug_to_remove_watchpoint;
2269 current_target.to_stopped_by_watchpoint = debug_to_stopped_by_watchpoint;
2270 current_target.to_stopped_data_address = debug_to_stopped_data_address;
2271 current_target.to_region_size_ok_for_hw_watchpoint = debug_to_region_size_ok_for_hw_watchpoint;
2272 current_target.to_terminal_init = debug_to_terminal_init;
2273 current_target.to_terminal_inferior = debug_to_terminal_inferior;
2274 current_target.to_terminal_ours_for_output = debug_to_terminal_ours_for_output;
2275 current_target.to_terminal_ours = debug_to_terminal_ours;
2276 current_target.to_terminal_save_ours = debug_to_terminal_save_ours;
2277 current_target.to_terminal_info = debug_to_terminal_info;
2278 current_target.to_kill = debug_to_kill;
2279 current_target.to_load = debug_to_load;
2280 current_target.to_lookup_symbol = debug_to_lookup_symbol;
2281 current_target.to_create_inferior = debug_to_create_inferior;
2282 current_target.to_post_startup_inferior = debug_to_post_startup_inferior;
2283 current_target.to_acknowledge_created_inferior = debug_to_acknowledge_created_inferior;
2284 current_target.to_insert_fork_catchpoint = debug_to_insert_fork_catchpoint;
2285 current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint;
2286 current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint;
2287 current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint;
2288 current_target.to_follow_fork = debug_to_follow_fork;
2289 current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint;
2290 current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint;
2291 current_target.to_reported_exec_events_per_exec_call = debug_to_reported_exec_events_per_exec_call;
2292 current_target.to_has_exited = debug_to_has_exited;
2293 current_target.to_mourn_inferior = debug_to_mourn_inferior;
2294 current_target.to_can_run = debug_to_can_run;
2295 current_target.to_notice_signals = debug_to_notice_signals;
2296 current_target.to_thread_alive = debug_to_thread_alive;
2297 current_target.to_find_new_threads = debug_to_find_new_threads;
2298 current_target.to_stop = debug_to_stop;
2299 current_target.to_query = debug_to_query;
2300 current_target.to_rcmd = debug_to_rcmd;
2301 current_target.to_enable_exception_callback = debug_to_enable_exception_callback;
2302 current_target.to_get_current_exception_event = debug_to_get_current_exception_event;
2303 current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file;
2308 static char targ_desc[] =
2309 "Names of targets and files being debugged.\n\
2310 Shows the entire stack of targets currently in use (including the exec-file,\n\
2311 core-file, and process, if any), as well as the symbol file name.";
2314 do_monitor_command (char *cmd,
2317 if ((current_target.to_rcmd
2318 == (void (*) (char *, struct ui_file *)) tcomplain)
2319 || (current_target.to_rcmd == debug_to_rcmd
2320 && (debug_target.to_rcmd
2321 == (void (*) (char *, struct ui_file *)) tcomplain)))
2323 error ("\"monitor\" command not supported by this target.\n");
2325 target_rcmd (cmd, gdb_stdtarg);
2329 initialize_targets (void)
2331 init_dummy_target ();
2332 push_target (&dummy_target);
2334 add_info ("target", target_info, targ_desc);
2335 add_info ("files", target_info, targ_desc);
2338 (add_set_cmd ("target", class_maintenance, var_zinteger,
2339 (char *) &targetdebug,
2340 "Set target debugging.\n\
2341 When non-zero, target debugging is enabled.", &setdebuglist),
2344 add_setshow_boolean_cmd ("trust-readonly-sections", class_support,
2346 Set mode for reading from readonly sections.\n\
2347 When this mode is on, memory reads from readonly sections (such as .text)\n\
2348 will be read from the object file instead of from the target. This will\n\
2349 result in significant performance improvement for remote targets.", "\
2350 Show mode for reading from readonly sections.\n",
2352 &setlist, &showlist);
2354 add_com ("monitor", class_obscure, do_monitor_command,
2355 "Send a command to the remote monitor (remote targets only).");
2357 target_dcache = dcache_init ();