1 /* Core dump and executable file functions below target vector, for GDB.
3 Copyright (C) 1986-2015 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;
283 target_preopen (from_tty);
287 error (_("No core file specified. (Use `detach' "
288 "to stop debugging a core file.)"));
290 error (_("No core file specified."));
293 filename = tilde_expand (arg);
294 if (!IS_ABSOLUTE_PATH (filename))
296 temp = concat (current_directory, "/",
297 filename, (char *) NULL);
302 old_chain = make_cleanup (xfree, filename);
304 flags = O_BINARY | O_LARGEFILE;
309 scratch_chan = gdb_open_cloexec (filename, flags, 0);
310 if (scratch_chan < 0)
311 perror_with_name (filename);
313 temp_bfd = gdb_bfd_fopen (filename, gnutarget,
314 write_files ? FOPEN_RUB : FOPEN_RB,
316 if (temp_bfd == NULL)
317 perror_with_name (filename);
319 if (!bfd_check_format (temp_bfd, bfd_core)
320 && !gdb_check_format (temp_bfd))
322 /* Do it after the err msg */
323 /* FIXME: should be checking for errors from bfd_close (for one
324 thing, on error it does not free all the storage associated
326 make_cleanup_bfd_unref (temp_bfd);
327 error (_("\"%s\" is not a core dump: %s"),
328 filename, bfd_errmsg (bfd_get_error ()));
331 /* Looks semi-reasonable. Toss the old core file and work on the
334 do_cleanups (old_chain);
335 unpush_target (&core_ops);
337 old_chain = make_cleanup (core_close_cleanup, 0 /*ignore*/);
339 core_gdbarch = gdbarch_from_bfd (core_bfd);
341 /* Find a suitable core file handler to munch on core_bfd */
342 core_vec = sniff_core_bfd (core_bfd);
346 core_data = XCNEW (struct target_section_table);
348 /* Find the data section */
349 if (build_section_table (core_bfd,
350 &core_data->sections,
351 &core_data->sections_end))
352 error (_("\"%s\": Can't find sections: %s"),
353 bfd_get_filename (core_bfd), bfd_errmsg (bfd_get_error ()));
355 /* If we have no exec file, try to set the architecture from the
356 core file. We don't do this unconditionally since an exec file
357 typically contains more information that helps us determine the
358 architecture than a core file. */
360 set_gdbarch_from_file (core_bfd);
362 push_target (&core_ops);
363 discard_cleanups (old_chain);
365 /* Do this before acknowledging the inferior, so if
366 post_create_inferior throws (can happen easilly if you're loading
367 a core file with the wrong exec), we aren't left with threads
368 from the previous inferior. */
371 inferior_ptid = null_ptid;
373 /* Need to flush the register cache (and the frame cache) from a
374 previous debug session. If inferior_ptid ends up the same as the
375 last debug session --- e.g., b foo; run; gcore core1; step; gcore
376 core2; core core1; core core2 --- then there's potential for
377 get_current_regcache to return the cached regcache of the
378 previous session, and the frame cache being stale. */
379 registers_changed ();
381 /* Build up thread list from BFD sections, and possibly set the
382 current thread to the .reg/NN section matching the .reg
384 bfd_map_over_sections (core_bfd, add_to_thread_list,
385 bfd_get_section_by_name (core_bfd, ".reg"));
387 if (ptid_equal (inferior_ptid, null_ptid))
389 /* Either we found no .reg/NN section, and hence we have a
390 non-threaded core (single-threaded, from gdb's perspective),
391 or for some reason add_to_thread_list couldn't determine
392 which was the "main" thread. The latter case shouldn't
393 usually happen, but we're dealing with input here, which can
394 always be broken in different ways. */
395 struct thread_info *thread = first_thread_of_process (-1);
399 inferior_appeared (current_inferior (), CORELOW_PID);
400 inferior_ptid = pid_to_ptid (CORELOW_PID);
401 add_thread_silent (inferior_ptid);
404 switch_to_thread (thread->ptid);
407 post_create_inferior (&core_ops, from_tty);
409 /* Now go through the target stack looking for threads since there
410 may be a thread_stratum target loaded on top of target core by
411 now. The layer above should claim threads found in the BFD
415 target_update_thread_list ();
418 CATCH (except, RETURN_MASK_ERROR)
420 exception_print (gdb_stderr, except);
424 p = bfd_core_file_failing_command (core_bfd);
426 printf_filtered (_("Core was generated by `%s'.\n"), p);
428 /* Clearing any previous state of convenience variables. */
429 clear_exit_convenience_vars ();
431 siggy = bfd_core_file_failing_signal (core_bfd);
434 /* If we don't have a CORE_GDBARCH to work with, assume a native
435 core (map gdb_signal from host signals). If we do have
436 CORE_GDBARCH to work with, but no gdb_signal_from_target
437 implementation for that gdbarch, as a fallback measure,
438 assume the host signal mapping. It'll be correct for native
439 cores, but most likely incorrect for cross-cores. */
440 enum gdb_signal sig = (core_gdbarch != NULL
441 && gdbarch_gdb_signal_from_target_p (core_gdbarch)
442 ? gdbarch_gdb_signal_from_target (core_gdbarch,
444 : gdb_signal_from_host (siggy));
446 printf_filtered (_("Program terminated with signal %s, %s.\n"),
447 gdb_signal_to_name (sig), gdb_signal_to_string (sig));
449 /* Set the value of the internal variable $_exitsignal,
450 which holds the signal uncaught by the inferior. */
451 set_internalvar_integer (lookup_internalvar ("_exitsignal"),
455 /* Fetch all registers from core file. */
456 target_fetch_registers (get_current_regcache (), -1);
458 /* Now, set up the frame cache, and print the top of stack. */
459 reinit_frame_cache ();
460 print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC, 1);
462 /* Current thread should be NUM 1 but the user does not know that.
463 If a program is single threaded gdb in general does not mention
464 anything about threads. That is why the test is >= 2. */
465 if (thread_count () >= 2)
469 thread_command (NULL, from_tty);
471 CATCH (except, RETURN_MASK_ERROR)
473 exception_print (gdb_stderr, except);
480 core_detach (struct target_ops *ops, const char *args, int from_tty)
483 error (_("Too many arguments"));
485 reinit_frame_cache ();
487 printf_filtered (_("No core file now.\n"));
490 /* Try to retrieve registers from a section in core_bfd, and supply
491 them to core_vec->core_read_registers, as the register set numbered
494 If inferior_ptid's lwp member is zero, do the single-threaded
495 thing: look for a section named NAME. If inferior_ptid's lwp
496 member is non-zero, do the multi-threaded thing: look for a section
497 named "NAME/LWP", where LWP is the shortest ASCII decimal
498 representation of inferior_ptid's lwp member.
500 HUMAN_NAME is a human-readable name for the kind of registers the
501 NAME section contains, for use in error messages.
503 If REQUIRED is non-zero, print an error if the core file doesn't
504 have a section by the appropriate name. Otherwise, just do
508 get_core_register_section (struct regcache *regcache,
509 const struct regset *regset,
513 const char *human_name,
516 static char *section_name = NULL;
517 struct bfd_section *section;
521 xfree (section_name);
523 if (ptid_get_lwp (inferior_ptid))
524 section_name = xstrprintf ("%s/%ld", name,
525 ptid_get_lwp (inferior_ptid));
527 section_name = xstrdup (name);
529 section = bfd_get_section_by_name (core_bfd, section_name);
533 warning (_("Couldn't find %s registers in core file."),
538 size = bfd_section_size (core_bfd, section);
541 warning (_("Section `%s' in core file too small."), section_name);
544 if (size != min_size && !(regset->flags & REGSET_VARIABLE_SIZE))
546 warning (_("Unexpected size of section `%s' in core file."),
550 contents = (char *) alloca (size);
551 if (! bfd_get_section_contents (core_bfd, section, contents,
554 warning (_("Couldn't read %s registers from `%s' section in core file."),
561 regset->supply_regset (regset, regcache, -1, contents, size);
565 gdb_assert (core_vec);
566 core_vec->core_read_registers (regcache, contents, size, which,
568 bfd_section_vma (core_bfd, section)));
571 /* Callback for get_core_registers that handles a single core file
572 register note section. */
575 get_core_registers_cb (const char *sect_name, int size,
576 const struct regset *regset,
577 const char *human_name, void *cb_data)
579 struct regcache *regcache = (struct regcache *) cb_data;
582 if (strcmp (sect_name, ".reg") == 0)
585 if (human_name == NULL)
586 human_name = "general-purpose";
588 else if (strcmp (sect_name, ".reg2") == 0)
590 if (human_name == NULL)
591 human_name = "floating-point";
594 /* The 'which' parameter is only used when no regset is provided.
595 Thus we just set it to -1. */
596 get_core_register_section (regcache, regset, sect_name,
597 size, -1, human_name, required);
600 /* Get the registers out of a core file. This is the machine-
601 independent part. Fetch_core_registers is the machine-dependent
602 part, typically implemented in the xm-file for each
605 /* We just get all the registers, so we don't use regno. */
608 get_core_registers (struct target_ops *ops,
609 struct regcache *regcache, int regno)
612 struct gdbarch *gdbarch;
614 if (!(core_gdbarch && gdbarch_iterate_over_regset_sections_p (core_gdbarch))
615 && (core_vec == NULL || core_vec->core_read_registers == NULL))
617 fprintf_filtered (gdb_stderr,
618 "Can't fetch registers from this type of core file\n");
622 gdbarch = get_regcache_arch (regcache);
623 if (gdbarch_iterate_over_regset_sections_p (gdbarch))
624 gdbarch_iterate_over_regset_sections (gdbarch,
625 get_core_registers_cb,
626 (void *) regcache, NULL);
629 get_core_register_section (regcache, NULL,
630 ".reg", 0, 0, "general-purpose", 1);
631 get_core_register_section (regcache, NULL,
632 ".reg2", 0, 2, "floating-point", 0);
635 /* Mark all registers not found in the core as unavailable. */
636 for (i = 0; i < gdbarch_num_regs (get_regcache_arch (regcache)); i++)
637 if (regcache_register_status (regcache, i) == REG_UNKNOWN)
638 regcache_raw_supply (regcache, i, NULL);
642 core_files_info (struct target_ops *t)
644 print_section_info (core_data, core_bfd);
657 add_to_spuid_list (bfd *abfd, asection *asect, void *list_p)
659 struct spuid_list *list = list_p;
660 enum bfd_endian byte_order
661 = bfd_big_endian (abfd) ? BFD_ENDIAN_BIG : BFD_ENDIAN_LITTLE;
664 sscanf (bfd_section_name (abfd, asect), "SPU/%d/regs%n", &fd, &pos);
668 if (list->pos >= list->offset && list->pos + 4 <= list->offset + list->len)
670 store_unsigned_integer (list->buf + list->pos - list->offset,
677 /* Read siginfo data from the core, if possible. Returns -1 on
678 failure. Otherwise, returns the number of bytes read. ABFD is the
679 core file's BFD; READBUF, OFFSET, and LEN are all as specified by
680 the to_xfer_partial interface. */
683 get_core_siginfo (bfd *abfd, gdb_byte *readbuf, ULONGEST offset, ULONGEST len)
687 const char *name = ".note.linuxcore.siginfo";
689 if (ptid_get_lwp (inferior_ptid))
690 section_name = xstrprintf ("%s/%ld", name,
691 ptid_get_lwp (inferior_ptid));
693 section_name = xstrdup (name);
695 section = bfd_get_section_by_name (abfd, section_name);
696 xfree (section_name);
700 if (!bfd_get_section_contents (abfd, section, readbuf, offset, len))
706 static enum target_xfer_status
707 core_xfer_partial (struct target_ops *ops, enum target_object object,
708 const char *annex, gdb_byte *readbuf,
709 const gdb_byte *writebuf, ULONGEST offset,
710 ULONGEST len, ULONGEST *xfered_len)
714 case TARGET_OBJECT_MEMORY:
715 return section_table_xfer_memory_partial (readbuf, writebuf,
716 offset, len, xfered_len,
718 core_data->sections_end,
721 case TARGET_OBJECT_AUXV:
724 /* When the aux vector is stored in core file, BFD
725 represents this with a fake section called ".auxv". */
727 struct bfd_section *section;
730 section = bfd_get_section_by_name (core_bfd, ".auxv");
732 return TARGET_XFER_E_IO;
734 size = bfd_section_size (core_bfd, section);
736 return TARGET_XFER_EOF;
742 return TARGET_XFER_EOF;
743 if (!bfd_get_section_contents (core_bfd, section, readbuf,
744 (file_ptr) offset, size))
746 warning (_("Couldn't read NT_AUXV note in core file."));
747 return TARGET_XFER_E_IO;
750 *xfered_len = (ULONGEST) size;
751 return TARGET_XFER_OK;
753 return TARGET_XFER_E_IO;
755 case TARGET_OBJECT_WCOOKIE:
758 /* When the StackGhost cookie is stored in core file, BFD
759 represents this with a fake section called
762 struct bfd_section *section;
765 section = bfd_get_section_by_name (core_bfd, ".wcookie");
767 return TARGET_XFER_E_IO;
769 size = bfd_section_size (core_bfd, section);
771 return TARGET_XFER_EOF;
777 return TARGET_XFER_EOF;
778 if (!bfd_get_section_contents (core_bfd, section, readbuf,
779 (file_ptr) offset, size))
781 warning (_("Couldn't read StackGhost cookie in core file."));
782 return TARGET_XFER_E_IO;
785 *xfered_len = (ULONGEST) size;
786 return TARGET_XFER_OK;
789 return TARGET_XFER_E_IO;
791 case TARGET_OBJECT_LIBRARIES:
793 && gdbarch_core_xfer_shared_libraries_p (core_gdbarch))
796 return TARGET_XFER_E_IO;
799 *xfered_len = gdbarch_core_xfer_shared_libraries (core_gdbarch,
803 if (*xfered_len == 0)
804 return TARGET_XFER_EOF;
806 return TARGET_XFER_OK;
811 case TARGET_OBJECT_LIBRARIES_AIX:
813 && gdbarch_core_xfer_shared_libraries_aix_p (core_gdbarch))
816 return TARGET_XFER_E_IO;
820 = gdbarch_core_xfer_shared_libraries_aix (core_gdbarch,
824 if (*xfered_len == 0)
825 return TARGET_XFER_EOF;
827 return TARGET_XFER_OK;
832 case TARGET_OBJECT_SPU:
833 if (readbuf && annex)
835 /* When the SPU contexts are stored in a core file, BFD
836 represents this with a fake section called
839 struct bfd_section *section;
841 char sectionstr[100];
843 xsnprintf (sectionstr, sizeof sectionstr, "SPU/%s", annex);
845 section = bfd_get_section_by_name (core_bfd, sectionstr);
847 return TARGET_XFER_E_IO;
849 size = bfd_section_size (core_bfd, section);
851 return TARGET_XFER_EOF;
857 return TARGET_XFER_EOF;
858 if (!bfd_get_section_contents (core_bfd, section, readbuf,
859 (file_ptr) offset, size))
861 warning (_("Couldn't read SPU section in core file."));
862 return TARGET_XFER_E_IO;
865 *xfered_len = (ULONGEST) size;
866 return TARGET_XFER_OK;
870 /* NULL annex requests list of all present spuids. */
871 struct spuid_list list;
874 list.offset = offset;
878 bfd_map_over_sections (core_bfd, add_to_spuid_list, &list);
880 if (list.written == 0)
881 return TARGET_XFER_EOF;
884 *xfered_len = (ULONGEST) list.written;
885 return TARGET_XFER_OK;
888 return TARGET_XFER_E_IO;
890 case TARGET_OBJECT_SIGNAL_INFO:
893 LONGEST l = get_core_siginfo (core_bfd, readbuf, offset, len);
898 return TARGET_XFER_OK;
901 return TARGET_XFER_E_IO;
904 return ops->beneath->to_xfer_partial (ops->beneath, object,
906 writebuf, offset, len,
912 /* If mourn is being called in all the right places, this could be say
913 `gdb internal error' (since generic_mourn calls
914 breakpoint_init_inferior). */
917 ignore (struct target_ops *ops, struct gdbarch *gdbarch,
918 struct bp_target_info *bp_tgt)
924 /* Okay, let's be honest: threads gleaned from a core file aren't
925 exactly lively, are they? On the other hand, if we don't claim
926 that each & every one is alive, then we don't get any of them
927 to appear in an "info thread" command, which is quite a useful
931 core_thread_alive (struct target_ops *ops, ptid_t ptid)
936 /* Ask the current architecture what it knows about this core file.
937 That will be used, in turn, to pick a better architecture. This
938 wrapper could be avoided if targets got a chance to specialize
941 static const struct target_desc *
942 core_read_description (struct target_ops *target)
944 if (core_gdbarch && gdbarch_core_read_description_p (core_gdbarch))
946 const struct target_desc *result;
948 result = gdbarch_core_read_description (core_gdbarch,
954 return target->beneath->to_read_description (target->beneath);
958 core_pid_to_str (struct target_ops *ops, ptid_t ptid)
961 struct inferior *inf;
964 /* The preferred way is to have a gdbarch/OS specific
967 && gdbarch_core_pid_to_str_p (core_gdbarch))
968 return gdbarch_core_pid_to_str (core_gdbarch, ptid);
970 /* Otherwise, if we don't have one, we'll just fallback to
971 "process", with normal_pid_to_str. */
973 /* Try the LWPID field first. */
974 pid = ptid_get_lwp (ptid);
976 return normal_pid_to_str (pid_to_ptid (pid));
978 /* Otherwise, this isn't a "threaded" core -- use the PID field, but
979 only if it isn't a fake PID. */
980 inf = find_inferior_ptid (ptid);
981 if (inf != NULL && !inf->fake_pid_p)
982 return normal_pid_to_str (ptid);
984 /* No luck. We simply don't have a valid PID to print. */
985 xsnprintf (buf, sizeof buf, "<main task>");
990 core_has_memory (struct target_ops *ops)
992 return (core_bfd != NULL);
996 core_has_stack (struct target_ops *ops)
998 return (core_bfd != NULL);
1002 core_has_registers (struct target_ops *ops)
1004 return (core_bfd != NULL);
1007 /* Implement the to_info_proc method. */
1010 core_info_proc (struct target_ops *ops, const char *args,
1011 enum info_proc_what request)
1013 struct gdbarch *gdbarch = get_current_arch ();
1015 /* Since this is the core file target, call the 'core_info_proc'
1016 method on gdbarch, not 'info_proc'. */
1017 if (gdbarch_core_info_proc_p (gdbarch))
1018 gdbarch_core_info_proc (gdbarch, args, request);
1021 /* Fill in core_ops with its defined operations and properties. */
1024 init_core_ops (void)
1026 core_ops.to_shortname = "core";
1027 core_ops.to_longname = "Local core dump file";
1029 "Use a core file as a target. Specify the filename of the core file.";
1030 core_ops.to_open = core_open;
1031 core_ops.to_close = core_close;
1032 core_ops.to_detach = core_detach;
1033 core_ops.to_fetch_registers = get_core_registers;
1034 core_ops.to_xfer_partial = core_xfer_partial;
1035 core_ops.to_files_info = core_files_info;
1036 core_ops.to_insert_breakpoint = ignore;
1037 core_ops.to_remove_breakpoint = ignore;
1038 core_ops.to_thread_alive = core_thread_alive;
1039 core_ops.to_read_description = core_read_description;
1040 core_ops.to_pid_to_str = core_pid_to_str;
1041 core_ops.to_stratum = process_stratum;
1042 core_ops.to_has_memory = core_has_memory;
1043 core_ops.to_has_stack = core_has_stack;
1044 core_ops.to_has_registers = core_has_registers;
1045 core_ops.to_info_proc = core_info_proc;
1046 core_ops.to_magic = OPS_MAGIC;
1049 internal_error (__FILE__, __LINE__,
1050 _("init_core_ops: core target already exists (\"%s\")."),
1051 core_target->to_longname);
1052 core_target = &core_ops;
1056 _initialize_corelow (void)
1060 add_target_with_completer (&core_ops, filename_completer);