1 /* Core dump and executable file functions below target vector, for GDB.
3 Copyright (C) 1986-2017 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
21 #include "arch-utils.h"
24 #ifdef HAVE_SYS_FILE_H
25 #include <sys/file.h> /* needed for F_OK and friends */
27 #include "frame.h" /* required by inferior.h */
35 #include "gdbthread.h"
40 #include "readline/readline.h"
42 #include "filenames.h"
43 #include "progspace.h"
46 #include "completer.h"
47 #include "filestuff.h"
53 /* List of all available core_fns. On gdb startup, each core file
54 register reader calls deprecated_add_core_fns() to register
55 information on each core format it is prepared to read. */
57 static struct core_fns
*core_file_fns
= NULL
;
59 /* The core_fns for a core file handler that is prepared to read the
60 core file currently open on core_bfd. */
62 static struct core_fns
*core_vec
= NULL
;
64 /* FIXME: kettenis/20031023: Eventually this variable should
67 static struct gdbarch
*core_gdbarch
= NULL
;
69 /* Per-core data. Currently, only the section table. Note that these
70 target sections are *not* mapped in the current address spaces' set
71 of target sections --- those should come only from pure executable
72 or shared library bfds. The core bfd sections are an
73 implementation detail of the core target, just like ptrace is for
74 unix child targets. */
75 static struct target_section_table
*core_data
;
77 static void core_files_info (struct target_ops
*);
79 static struct core_fns
*sniff_core_bfd (bfd
*);
81 static int gdb_check_format (bfd
*);
83 static void core_close (struct target_ops
*self
);
85 static void core_close_cleanup (void *ignore
);
87 static void add_to_thread_list (bfd
*, asection
*, void *);
89 static void init_core_ops (void);
91 void _initialize_corelow (void);
93 static struct target_ops core_ops
;
95 /* An arbitrary identifier for the core inferior. */
98 /* Link a new core_fns into the global core_file_fns list. Called on
99 gdb startup by the _initialize routine in each core file register
100 reader, to register information about each format the reader is
101 prepared to handle. */
104 deprecated_add_core_fns (struct core_fns
*cf
)
106 cf
->next
= core_file_fns
;
110 /* The default function that core file handlers can use to examine a
111 core file BFD and decide whether or not to accept the job of
112 reading the core file. */
115 default_core_sniffer (struct core_fns
*our_fns
, bfd
*abfd
)
119 result
= (bfd_get_flavour (abfd
) == our_fns
-> core_flavour
);
123 /* Walk through the list of core functions to find a set that can
124 handle the core file open on ABFD. Returns pointer to set that is
127 static struct core_fns
*
128 sniff_core_bfd (bfd
*abfd
)
131 struct core_fns
*yummy
= NULL
;
134 /* Don't sniff if we have support for register sets in
136 if (core_gdbarch
&& gdbarch_iterate_over_regset_sections_p (core_gdbarch
))
139 for (cf
= core_file_fns
; cf
!= NULL
; cf
= cf
->next
)
141 if (cf
->core_sniffer (cf
, abfd
))
149 warning (_("\"%s\": ambiguous core format, %d handlers match"),
150 bfd_get_filename (abfd
), matches
);
152 else if (matches
== 0)
153 error (_("\"%s\": no core file handler recognizes format"),
154 bfd_get_filename (abfd
));
159 /* The default is to reject every core file format we see. Either
160 BFD has to recognize it, or we have to provide a function in the
161 core file handler that recognizes it. */
164 default_check_format (bfd
*abfd
)
169 /* Attempt to recognize core file formats that BFD rejects. */
172 gdb_check_format (bfd
*abfd
)
176 for (cf
= core_file_fns
; cf
!= NULL
; cf
= cf
->next
)
178 if (cf
->check_format (abfd
))
186 /* Discard all vestiges of any previous core file and mark data and
187 stack spaces as empty. */
190 core_close (struct target_ops
*self
)
194 int pid
= ptid_get_pid (inferior_ptid
);
195 inferior_ptid
= null_ptid
; /* Avoid confusion from thread
198 exit_inferior_silent (pid
);
200 /* Clear out solib state while the bfd is still open. See
201 comments in clear_solib in solib.c. */
206 xfree (core_data
->sections
);
211 gdb_bfd_unref (core_bfd
);
219 core_close_cleanup (void *ignore
)
224 /* Look for sections whose names start with `.reg/' so that we can
225 extract the list of threads in a core file. */
228 add_to_thread_list (bfd
*abfd
, asection
*asect
, void *reg_sect_arg
)
233 asection
*reg_sect
= (asection
*) reg_sect_arg
;
235 struct inferior
*inf
;
237 if (!startswith (bfd_section_name (abfd
, asect
), ".reg/"))
240 core_tid
= atoi (bfd_section_name (abfd
, asect
) + 5);
242 pid
= bfd_core_file_pid (core_bfd
);
251 inf
= current_inferior ();
254 inferior_appeared (inf
, pid
);
255 inf
->fake_pid_p
= fake_pid_p
;
258 ptid
= ptid_build (pid
, lwpid
, 0);
262 /* Warning, Will Robinson, looking at BFD private data! */
265 && asect
->filepos
== reg_sect
->filepos
) /* Did we find .reg? */
266 inferior_ptid
= ptid
; /* Yes, make it current. */
269 /* This routine opens and sets up the core file bfd. */
272 core_open (const char *arg
, int from_tty
)
276 struct cleanup
*old_chain
;
282 target_preopen (from_tty
);
286 error (_("No core file specified. (Use `detach' "
287 "to stop debugging a core file.)"));
289 error (_("No core file specified."));
292 filename
= tilde_expand (arg
);
293 if (!IS_ABSOLUTE_PATH (filename
))
295 temp
= concat (current_directory
, "/",
296 filename
, (char *) NULL
);
301 old_chain
= make_cleanup (xfree
, filename
);
303 flags
= O_BINARY
| O_LARGEFILE
;
308 scratch_chan
= gdb_open_cloexec (filename
, flags
, 0);
309 if (scratch_chan
< 0)
310 perror_with_name (filename
);
312 gdb_bfd_ref_ptr
temp_bfd (gdb_bfd_fopen (filename
, gnutarget
,
313 write_files
? FOPEN_RUB
: FOPEN_RB
,
315 if (temp_bfd
== NULL
)
316 perror_with_name (filename
);
318 if (!bfd_check_format (temp_bfd
.get (), bfd_core
)
319 && !gdb_check_format (temp_bfd
.get ()))
321 /* Do it after the err msg */
322 /* FIXME: should be checking for errors from bfd_close (for one
323 thing, on error it does not free all the storage associated
325 error (_("\"%s\" is not a core dump: %s"),
326 filename
, bfd_errmsg (bfd_get_error ()));
329 /* Looks semi-reasonable. Toss the old core file and work on the
332 do_cleanups (old_chain
);
333 unpush_target (&core_ops
);
334 core_bfd
= temp_bfd
.release ();
335 old_chain
= make_cleanup (core_close_cleanup
, 0 /*ignore*/);
337 core_gdbarch
= gdbarch_from_bfd (core_bfd
);
339 /* Find a suitable core file handler to munch on core_bfd */
340 core_vec
= sniff_core_bfd (core_bfd
);
344 core_data
= XCNEW (struct target_section_table
);
346 /* Find the data section */
347 if (build_section_table (core_bfd
,
348 &core_data
->sections
,
349 &core_data
->sections_end
))
350 error (_("\"%s\": Can't find sections: %s"),
351 bfd_get_filename (core_bfd
), bfd_errmsg (bfd_get_error ()));
353 /* If we have no exec file, try to set the architecture from the
354 core file. We don't do this unconditionally since an exec file
355 typically contains more information that helps us determine the
356 architecture than a core file. */
358 set_gdbarch_from_file (core_bfd
);
360 push_target (&core_ops
);
361 discard_cleanups (old_chain
);
363 /* Do this before acknowledging the inferior, so if
364 post_create_inferior throws (can happen easilly if you're loading
365 a core file with the wrong exec), we aren't left with threads
366 from the previous inferior. */
369 inferior_ptid
= null_ptid
;
371 /* Need to flush the register cache (and the frame cache) from a
372 previous debug session. If inferior_ptid ends up the same as the
373 last debug session --- e.g., b foo; run; gcore core1; step; gcore
374 core2; core core1; core core2 --- then there's potential for
375 get_current_regcache to return the cached regcache of the
376 previous session, and the frame cache being stale. */
377 registers_changed ();
379 /* Build up thread list from BFD sections, and possibly set the
380 current thread to the .reg/NN section matching the .reg
382 bfd_map_over_sections (core_bfd
, add_to_thread_list
,
383 bfd_get_section_by_name (core_bfd
, ".reg"));
385 if (ptid_equal (inferior_ptid
, null_ptid
))
387 /* Either we found no .reg/NN section, and hence we have a
388 non-threaded core (single-threaded, from gdb's perspective),
389 or for some reason add_to_thread_list couldn't determine
390 which was the "main" thread. The latter case shouldn't
391 usually happen, but we're dealing with input here, which can
392 always be broken in different ways. */
393 struct thread_info
*thread
= first_thread_of_process (-1);
397 inferior_appeared (current_inferior (), CORELOW_PID
);
398 inferior_ptid
= pid_to_ptid (CORELOW_PID
);
399 add_thread_silent (inferior_ptid
);
402 switch_to_thread (thread
->ptid
);
405 post_create_inferior (&core_ops
, from_tty
);
407 /* Now go through the target stack looking for threads since there
408 may be a thread_stratum target loaded on top of target core by
409 now. The layer above should claim threads found in the BFD
413 target_update_thread_list ();
416 CATCH (except
, RETURN_MASK_ERROR
)
418 exception_print (gdb_stderr
, except
);
422 p
= bfd_core_file_failing_command (core_bfd
);
424 printf_filtered (_("Core was generated by `%s'.\n"), p
);
426 /* Clearing any previous state of convenience variables. */
427 clear_exit_convenience_vars ();
429 siggy
= bfd_core_file_failing_signal (core_bfd
);
432 /* If we don't have a CORE_GDBARCH to work with, assume a native
433 core (map gdb_signal from host signals). If we do have
434 CORE_GDBARCH to work with, but no gdb_signal_from_target
435 implementation for that gdbarch, as a fallback measure,
436 assume the host signal mapping. It'll be correct for native
437 cores, but most likely incorrect for cross-cores. */
438 enum gdb_signal sig
= (core_gdbarch
!= NULL
439 && gdbarch_gdb_signal_from_target_p (core_gdbarch
)
440 ? gdbarch_gdb_signal_from_target (core_gdbarch
,
442 : gdb_signal_from_host (siggy
));
444 printf_filtered (_("Program terminated with signal %s, %s.\n"),
445 gdb_signal_to_name (sig
), gdb_signal_to_string (sig
));
447 /* Set the value of the internal variable $_exitsignal,
448 which holds the signal uncaught by the inferior. */
449 set_internalvar_integer (lookup_internalvar ("_exitsignal"),
453 /* Fetch all registers from core file. */
454 target_fetch_registers (get_current_regcache (), -1);
456 /* Now, set up the frame cache, and print the top of stack. */
457 reinit_frame_cache ();
458 print_stack_frame (get_selected_frame (NULL
), 1, SRC_AND_LOC
, 1);
460 /* Current thread should be NUM 1 but the user does not know that.
461 If a program is single threaded gdb in general does not mention
462 anything about threads. That is why the test is >= 2. */
463 if (thread_count () >= 2)
467 thread_command (NULL
, from_tty
);
469 CATCH (except
, RETURN_MASK_ERROR
)
471 exception_print (gdb_stderr
, except
);
478 core_detach (struct target_ops
*ops
, const char *args
, int from_tty
)
481 error (_("Too many arguments"));
483 reinit_frame_cache ();
485 printf_filtered (_("No core file now.\n"));
488 /* Try to retrieve registers from a section in core_bfd, and supply
489 them to core_vec->core_read_registers, as the register set numbered
492 If ptid's lwp member is zero, do the single-threaded
493 thing: look for a section named NAME. If ptid's lwp
494 member is non-zero, do the multi-threaded thing: look for a section
495 named "NAME/LWP", where LWP is the shortest ASCII decimal
496 representation of ptid's lwp member.
498 HUMAN_NAME is a human-readable name for the kind of registers the
499 NAME section contains, for use in error messages.
501 If REQUIRED is non-zero, print an error if the core file doesn't
502 have a section by the appropriate name. Otherwise, just do
506 get_core_register_section (struct regcache
*regcache
,
507 const struct regset
*regset
,
511 const char *human_name
,
514 struct bfd_section
*section
;
517 bool variable_size_section
= (regset
!= NULL
518 && regset
->flags
& REGSET_VARIABLE_SIZE
);
520 thread_section_name
section_name (name
, regcache
->ptid ());
522 section
= bfd_get_section_by_name (core_bfd
, section_name
.c_str ());
526 warning (_("Couldn't find %s registers in core file."),
531 size
= bfd_section_size (core_bfd
, section
);
534 warning (_("Section `%s' in core file too small."),
535 section_name
.c_str ());
538 if (size
!= min_size
&& !variable_size_section
)
540 warning (_("Unexpected size of section `%s' in core file."),
541 section_name
.c_str ());
544 contents
= (char *) alloca (size
);
545 if (! bfd_get_section_contents (core_bfd
, section
, contents
,
548 warning (_("Couldn't read %s registers from `%s' section in core file."),
549 human_name
, section_name
.c_str ());
555 regset
->supply_regset (regset
, regcache
, -1, contents
, size
);
559 gdb_assert (core_vec
);
560 core_vec
->core_read_registers (regcache
, contents
, size
, which
,
562 bfd_section_vma (core_bfd
, section
)));
565 /* Callback for get_core_registers that handles a single core file
566 register note section. */
569 get_core_registers_cb (const char *sect_name
, int size
,
570 const struct regset
*regset
,
571 const char *human_name
, void *cb_data
)
573 struct regcache
*regcache
= (struct regcache
*) cb_data
;
576 if (strcmp (sect_name
, ".reg") == 0)
579 if (human_name
== NULL
)
580 human_name
= "general-purpose";
582 else if (strcmp (sect_name
, ".reg2") == 0)
584 if (human_name
== NULL
)
585 human_name
= "floating-point";
588 /* The 'which' parameter is only used when no regset is provided.
589 Thus we just set it to -1. */
590 get_core_register_section (regcache
, regset
, sect_name
,
591 size
, -1, human_name
, required
);
594 /* Get the registers out of a core file. This is the machine-
595 independent part. Fetch_core_registers is the machine-dependent
596 part, typically implemented in the xm-file for each
599 /* We just get all the registers, so we don't use regno. */
602 get_core_registers (struct target_ops
*ops
,
603 struct regcache
*regcache
, int regno
)
606 struct gdbarch
*gdbarch
;
608 if (!(core_gdbarch
&& gdbarch_iterate_over_regset_sections_p (core_gdbarch
))
609 && (core_vec
== NULL
|| core_vec
->core_read_registers
== NULL
))
611 fprintf_filtered (gdb_stderr
,
612 "Can't fetch registers from this type of core file\n");
616 gdbarch
= get_regcache_arch (regcache
);
617 if (gdbarch_iterate_over_regset_sections_p (gdbarch
))
618 gdbarch_iterate_over_regset_sections (gdbarch
,
619 get_core_registers_cb
,
620 (void *) regcache
, NULL
);
623 get_core_register_section (regcache
, NULL
,
624 ".reg", 0, 0, "general-purpose", 1);
625 get_core_register_section (regcache
, NULL
,
626 ".reg2", 0, 2, "floating-point", 0);
629 /* Mark all registers not found in the core as unavailable. */
630 for (i
= 0; i
< gdbarch_num_regs (get_regcache_arch (regcache
)); i
++)
631 if (regcache_register_status (regcache
, i
) == REG_UNKNOWN
)
632 regcache_raw_supply (regcache
, i
, NULL
);
636 core_files_info (struct target_ops
*t
)
638 print_section_info (core_data
, core_bfd
);
651 add_to_spuid_list (bfd
*abfd
, asection
*asect
, void *list_p
)
653 struct spuid_list
*list
= (struct spuid_list
*) list_p
;
654 enum bfd_endian byte_order
655 = bfd_big_endian (abfd
) ? BFD_ENDIAN_BIG
: BFD_ENDIAN_LITTLE
;
658 sscanf (bfd_section_name (abfd
, asect
), "SPU/%d/regs%n", &fd
, &pos
);
662 if (list
->pos
>= list
->offset
&& list
->pos
+ 4 <= list
->offset
+ list
->len
)
664 store_unsigned_integer (list
->buf
+ list
->pos
- list
->offset
,
671 /* Read siginfo data from the core, if possible. Returns -1 on
672 failure. Otherwise, returns the number of bytes read. ABFD is the
673 core file's BFD; READBUF, OFFSET, and LEN are all as specified by
674 the to_xfer_partial interface. */
677 get_core_siginfo (bfd
*abfd
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
)
679 thread_section_name
section_name (".note.linuxcore.siginfo", inferior_ptid
);
680 asection
*section
= bfd_get_section_by_name (abfd
, section_name
.c_str ());
684 if (!bfd_get_section_contents (abfd
, section
, readbuf
, offset
, len
))
690 static enum target_xfer_status
691 core_xfer_partial (struct target_ops
*ops
, enum target_object object
,
692 const char *annex
, gdb_byte
*readbuf
,
693 const gdb_byte
*writebuf
, ULONGEST offset
,
694 ULONGEST len
, ULONGEST
*xfered_len
)
698 case TARGET_OBJECT_MEMORY
:
699 return section_table_xfer_memory_partial (readbuf
, writebuf
,
700 offset
, len
, xfered_len
,
702 core_data
->sections_end
,
705 case TARGET_OBJECT_AUXV
:
708 /* When the aux vector is stored in core file, BFD
709 represents this with a fake section called ".auxv". */
711 struct bfd_section
*section
;
714 section
= bfd_get_section_by_name (core_bfd
, ".auxv");
716 return TARGET_XFER_E_IO
;
718 size
= bfd_section_size (core_bfd
, section
);
720 return TARGET_XFER_EOF
;
726 return TARGET_XFER_EOF
;
727 if (!bfd_get_section_contents (core_bfd
, section
, readbuf
,
728 (file_ptr
) offset
, size
))
730 warning (_("Couldn't read NT_AUXV note in core file."));
731 return TARGET_XFER_E_IO
;
734 *xfered_len
= (ULONGEST
) size
;
735 return TARGET_XFER_OK
;
737 return TARGET_XFER_E_IO
;
739 case TARGET_OBJECT_WCOOKIE
:
742 /* When the StackGhost cookie is stored in core file, BFD
743 represents this with a fake section called
746 struct bfd_section
*section
;
749 section
= bfd_get_section_by_name (core_bfd
, ".wcookie");
751 return TARGET_XFER_E_IO
;
753 size
= bfd_section_size (core_bfd
, section
);
755 return TARGET_XFER_EOF
;
761 return TARGET_XFER_EOF
;
762 if (!bfd_get_section_contents (core_bfd
, section
, readbuf
,
763 (file_ptr
) offset
, size
))
765 warning (_("Couldn't read StackGhost cookie in core file."));
766 return TARGET_XFER_E_IO
;
769 *xfered_len
= (ULONGEST
) size
;
770 return TARGET_XFER_OK
;
773 return TARGET_XFER_E_IO
;
775 case TARGET_OBJECT_LIBRARIES
:
777 && gdbarch_core_xfer_shared_libraries_p (core_gdbarch
))
780 return TARGET_XFER_E_IO
;
783 *xfered_len
= gdbarch_core_xfer_shared_libraries (core_gdbarch
,
787 if (*xfered_len
== 0)
788 return TARGET_XFER_EOF
;
790 return TARGET_XFER_OK
;
795 case TARGET_OBJECT_LIBRARIES_AIX
:
797 && gdbarch_core_xfer_shared_libraries_aix_p (core_gdbarch
))
800 return TARGET_XFER_E_IO
;
804 = gdbarch_core_xfer_shared_libraries_aix (core_gdbarch
,
808 if (*xfered_len
== 0)
809 return TARGET_XFER_EOF
;
811 return TARGET_XFER_OK
;
816 case TARGET_OBJECT_SPU
:
817 if (readbuf
&& annex
)
819 /* When the SPU contexts are stored in a core file, BFD
820 represents this with a fake section called
823 struct bfd_section
*section
;
825 char sectionstr
[100];
827 xsnprintf (sectionstr
, sizeof sectionstr
, "SPU/%s", annex
);
829 section
= bfd_get_section_by_name (core_bfd
, sectionstr
);
831 return TARGET_XFER_E_IO
;
833 size
= bfd_section_size (core_bfd
, section
);
835 return TARGET_XFER_EOF
;
841 return TARGET_XFER_EOF
;
842 if (!bfd_get_section_contents (core_bfd
, section
, readbuf
,
843 (file_ptr
) offset
, size
))
845 warning (_("Couldn't read SPU section in core file."));
846 return TARGET_XFER_E_IO
;
849 *xfered_len
= (ULONGEST
) size
;
850 return TARGET_XFER_OK
;
854 /* NULL annex requests list of all present spuids. */
855 struct spuid_list list
;
858 list
.offset
= offset
;
862 bfd_map_over_sections (core_bfd
, add_to_spuid_list
, &list
);
864 if (list
.written
== 0)
865 return TARGET_XFER_EOF
;
868 *xfered_len
= (ULONGEST
) list
.written
;
869 return TARGET_XFER_OK
;
872 return TARGET_XFER_E_IO
;
874 case TARGET_OBJECT_SIGNAL_INFO
:
877 LONGEST l
= get_core_siginfo (core_bfd
, readbuf
, offset
, len
);
882 return TARGET_XFER_OK
;
885 return TARGET_XFER_E_IO
;
888 return ops
->beneath
->to_xfer_partial (ops
->beneath
, object
,
890 writebuf
, offset
, len
,
896 /* If mourn is being called in all the right places, this could be say
897 `gdb internal error' (since generic_mourn calls
898 breakpoint_init_inferior). */
901 ignore (struct target_ops
*ops
, struct gdbarch
*gdbarch
,
902 struct bp_target_info
*bp_tgt
)
907 /* Implement the to_remove_breakpoint method. */
910 core_remove_breakpoint (struct target_ops
*ops
, struct gdbarch
*gdbarch
,
911 struct bp_target_info
*bp_tgt
,
912 enum remove_bp_reason reason
)
918 /* Okay, let's be honest: threads gleaned from a core file aren't
919 exactly lively, are they? On the other hand, if we don't claim
920 that each & every one is alive, then we don't get any of them
921 to appear in an "info thread" command, which is quite a useful
925 core_thread_alive (struct target_ops
*ops
, ptid_t ptid
)
930 /* Ask the current architecture what it knows about this core file.
931 That will be used, in turn, to pick a better architecture. This
932 wrapper could be avoided if targets got a chance to specialize
935 static const struct target_desc
*
936 core_read_description (struct target_ops
*target
)
938 if (core_gdbarch
&& gdbarch_core_read_description_p (core_gdbarch
))
940 const struct target_desc
*result
;
942 result
= gdbarch_core_read_description (core_gdbarch
,
948 return target
->beneath
->to_read_description (target
->beneath
);
952 core_pid_to_str (struct target_ops
*ops
, ptid_t ptid
)
955 struct inferior
*inf
;
958 /* The preferred way is to have a gdbarch/OS specific
961 && gdbarch_core_pid_to_str_p (core_gdbarch
))
962 return gdbarch_core_pid_to_str (core_gdbarch
, ptid
);
964 /* Otherwise, if we don't have one, we'll just fallback to
965 "process", with normal_pid_to_str. */
967 /* Try the LWPID field first. */
968 pid
= ptid_get_lwp (ptid
);
970 return normal_pid_to_str (pid_to_ptid (pid
));
972 /* Otherwise, this isn't a "threaded" core -- use the PID field, but
973 only if it isn't a fake PID. */
974 inf
= find_inferior_ptid (ptid
);
975 if (inf
!= NULL
&& !inf
->fake_pid_p
)
976 return normal_pid_to_str (ptid
);
978 /* No luck. We simply don't have a valid PID to print. */
979 xsnprintf (buf
, sizeof buf
, "<main task>");
984 core_thread_name (struct target_ops
*self
, struct thread_info
*thr
)
987 && gdbarch_core_thread_name_p (core_gdbarch
))
988 return gdbarch_core_thread_name (core_gdbarch
, thr
);
993 core_has_memory (struct target_ops
*ops
)
995 return (core_bfd
!= NULL
);
999 core_has_stack (struct target_ops
*ops
)
1001 return (core_bfd
!= NULL
);
1005 core_has_registers (struct target_ops
*ops
)
1007 return (core_bfd
!= NULL
);
1010 /* Implement the to_info_proc method. */
1013 core_info_proc (struct target_ops
*ops
, const char *args
,
1014 enum info_proc_what request
)
1016 struct gdbarch
*gdbarch
= get_current_arch ();
1018 /* Since this is the core file target, call the 'core_info_proc'
1019 method on gdbarch, not 'info_proc'. */
1020 if (gdbarch_core_info_proc_p (gdbarch
))
1021 gdbarch_core_info_proc (gdbarch
, args
, request
);
1024 /* Fill in core_ops with its defined operations and properties. */
1027 init_core_ops (void)
1029 core_ops
.to_shortname
= "core";
1030 core_ops
.to_longname
= "Local core dump file";
1032 "Use a core file as a target. Specify the filename of the core file.";
1033 core_ops
.to_open
= core_open
;
1034 core_ops
.to_close
= core_close
;
1035 core_ops
.to_detach
= core_detach
;
1036 core_ops
.to_fetch_registers
= get_core_registers
;
1037 core_ops
.to_xfer_partial
= core_xfer_partial
;
1038 core_ops
.to_files_info
= core_files_info
;
1039 core_ops
.to_insert_breakpoint
= ignore
;
1040 core_ops
.to_remove_breakpoint
= core_remove_breakpoint
;
1041 core_ops
.to_thread_alive
= core_thread_alive
;
1042 core_ops
.to_read_description
= core_read_description
;
1043 core_ops
.to_pid_to_str
= core_pid_to_str
;
1044 core_ops
.to_thread_name
= core_thread_name
;
1045 core_ops
.to_stratum
= process_stratum
;
1046 core_ops
.to_has_memory
= core_has_memory
;
1047 core_ops
.to_has_stack
= core_has_stack
;
1048 core_ops
.to_has_registers
= core_has_registers
;
1049 core_ops
.to_info_proc
= core_info_proc
;
1050 core_ops
.to_magic
= OPS_MAGIC
;
1053 internal_error (__FILE__
, __LINE__
,
1054 _("init_core_ops: core target already exists (\"%s\")."),
1055 core_target
->to_longname
);
1056 core_target
= &core_ops
;
1060 _initialize_corelow (void)
1064 add_target_with_completer (&core_ops
, filename_completer
);