+Fri Sep 25 09:52:47 1992 K. Richard Pixley (rich@sendai.cygnus.com)
+
+ Separate core functions along target vector in preparation for
+ native support. Functions above vector now live in core.c. Those
+ below in corelow.c.
+
+ * core.c (solib_add_stub, core_close, core_open, core_detach,
+ get_core_registers, core_files_info, core_ops): moved to corelow.c
+ (_initialize_core): removed addition of core_ops target.
+ * corelow.c: new file.
+ (solib_add_stub, core_close, core_open, core_detach,
+ get_core_registers, core_files_info, core_ops): moved from core.c
+ (_initialize_corelow): new function.
+ * gdbcore.h (core_open, core_detach): added prototypes.
+ (core_ops): add forward declaration.
+ * Makefile.in (SFILES_MAINDIR): add core.c
+ (OBS): add core.o
+ (TSOBS): change core.o to corelow.o
+
Wed Sep 23 11:14:53 1992 Stu Grossman (grossman at cygnus.com)
* m68k-tdep.c (m68k_saved_pc_after_call): Use 'GDB_TARGET_IS_SUN3'
-/* Work with core dump and executable files, for GDB.
+/* Core dump and executable file functions above target vector, for GDB.
Copyright 1986, 1987, 1989, 1991, 1992 Free Software Foundation, Inc.
This file is part of GDB.
#include "target.h"
#include "gdbcore.h"
-#ifdef SOLIB_ADD
-static int
-solib_add_stub PARAMS ((char *));
-#endif
-
-static void
-core_close PARAMS ((int));
-
-static void
-core_open PARAMS ((char *, int));
-
-static void
-core_detach PARAMS ((char *, int));
-
-static void
-get_core_registers PARAMS ((int));
-
-static void
-core_files_info PARAMS ((struct target_ops *));
-
extern char registers[];
/* Hook for `exec_file_command' command to call. */
bfd *core_bfd = NULL;
-/* Forward decl */
-extern struct target_ops core_ops;
-
\f
-/* Discard all vestiges of any previous core file
- and mark data and stack spaces as empty. */
-
-/* ARGSUSED */
-static void
-core_close (quitting)
- int quitting;
-{
- if (core_bfd) {
- free (bfd_get_filename (core_bfd));
- bfd_close (core_bfd);
- core_bfd = NULL;
-#ifdef CLEAR_SOLIB
- CLEAR_SOLIB ();
-#endif
- if (core_ops.to_sections) {
- free ((PTR)core_ops.to_sections);
- core_ops.to_sections = NULL;
- core_ops.to_sections_end = NULL;
- }
- }
-}
-
-#ifdef SOLIB_ADD
-/* Stub function for catch_errors around shared library hacking. */
-
-static int
-solib_add_stub (from_tty)
- char *from_tty;
-{
- SOLIB_ADD (NULL, (int)from_tty, &core_ops);
- return 0;
-}
-#endif /* SOLIB_ADD */
-
-/* This routine opens and sets up the core file bfd */
-
-static void
-core_open (filename, from_tty)
- char *filename;
- int from_tty;
-{
- const char *p;
- int siggy;
- struct cleanup *old_chain;
- char *temp;
- bfd *temp_bfd;
- int ontop;
- int scratch_chan;
-
- target_preopen (from_tty);
- if (!filename)
- {
- error (core_bfd?
- "No core file specified. (Use `detach' to stop debugging a core file.)"
- : "No core file specified.");
- }
-
- filename = tilde_expand (filename);
- if (filename[0] != '/') {
- temp = concat (current_directory, "/", filename, NULL);
- free (filename);
- filename = temp;
- }
-
- old_chain = make_cleanup (free, filename);
-
- scratch_chan = open (filename, write_files? O_RDWR: O_RDONLY, 0);
- if (scratch_chan < 0)
- perror_with_name (filename);
-
- temp_bfd = bfd_fdopenr (filename, NULL, scratch_chan);
- if (temp_bfd == NULL)
- {
- perror_with_name (filename);
- }
-
- if (!bfd_check_format (temp_bfd, bfd_core))
- {
- /* Do it after the err msg */
- make_cleanup (bfd_close, temp_bfd);
- error ("\"%s\" is not a core dump: %s", filename, bfd_errmsg(bfd_error));
- }
-
- /* Looks semi-reasonable. Toss the old core file and work on the new. */
-
- discard_cleanups (old_chain); /* Don't free filename any more */
- unpush_target (&core_ops);
- core_bfd = temp_bfd;
- old_chain = make_cleanup (core_close, core_bfd);
-
- validate_files ();
-
- /* Find the data section */
- if (build_section_table (core_bfd, &core_ops.to_sections,
- &core_ops.to_sections_end))
- error ("Can't find sections in `%s': %s", bfd_get_filename(core_bfd),
- bfd_errmsg (bfd_error));
-
- ontop = !push_target (&core_ops);
- discard_cleanups (old_chain);
-
- p = bfd_core_file_failing_command (core_bfd);
- if (p)
- printf_filtered ("Core was generated by `%s'.\n", p);
-
- siggy = bfd_core_file_failing_signal (core_bfd);
- if (siggy > 0)
- printf_filtered ("Program terminated with signal %d, %s.\n", siggy,
- safe_strsignal (siggy));
-
- if (ontop) {
- /* Fetch all registers from core file */
- target_fetch_registers (-1);
-
- /* Add symbols and section mappings for any shared libraries */
-#ifdef SOLIB_ADD
- catch_errors (solib_add_stub, (char *)from_tty, (char *)0);
-#endif
-
- /* Now, set up the frame cache, and print the top of stack */
- set_current_frame (create_new_frame (read_register (FP_REGNUM),
- read_pc ()));
- select_frame (get_current_frame (), 0);
- print_stack_frame (selected_frame, selected_frame_level, 1);
- } else {
- warning (
-"you won't be able to access this core file until you terminate\n\
-your %s; do ``info files''", current_target->to_longname);
- }
-}
-
-static void
-core_detach (args, from_tty)
- char *args;
- int from_tty;
-{
- if (args)
- error ("Too many arguments");
- unpush_target (&core_ops);
- if (from_tty)
- printf_filtered ("No core file now.\n");
-}
-
/* Backward compatability with old way of specifying core files. */
void
int from_tty;
{
dont_repeat (); /* Either way, seems bogus. */
+
if (!filename)
core_detach (filename, from_tty);
else
return NULL;
}
-static void
-core_files_info (t)
- struct target_ops *t;
-{
- print_section_info (t, core_bfd);
-}
\f
/* Report a memory error with error(). */
return -1; /* for lint */
}
\f
-/* Get the registers out of a core file. This is the machine-
- independent part. Fetch_core_registers is the machine-dependent
- part, typically implemented in the xm-file for each architecture. */
-
-/* We just get all the registers, so we don't use regno. */
-/* ARGSUSED */
-static void
-get_core_registers (regno)
- int regno;
-{
- sec_ptr reg_sec;
- unsigned size;
- char *the_regs;
-
- reg_sec = bfd_get_section_by_name (core_bfd, ".reg");
- if (!reg_sec) goto cant;
- size = bfd_section_size (core_bfd, reg_sec);
- the_regs = alloca (size);
- if (bfd_get_section_contents (core_bfd, reg_sec, the_regs, (file_ptr)0, size))
- {
- fetch_core_registers (the_regs, size, 0,
- (unsigned) bfd_section_vma (abfd,reg_sec));
- }
- else
- {
-cant:
- fprintf_filtered (stderr, "Couldn't fetch registers from core file: %s\n",
- bfd_errmsg (bfd_error));
- }
-
- /* Now do it again for the float registers, if they exist. */
- reg_sec = bfd_get_section_by_name (core_bfd, ".reg2");
- if (reg_sec) {
- size = bfd_section_size (core_bfd, reg_sec);
- the_regs = alloca (size);
- if (bfd_get_section_contents (core_bfd, reg_sec, the_regs, (file_ptr)0,
- size))
- {
- fetch_core_registers (the_regs, size, 2,
- (unsigned) bfd_section_vma (abfd,reg_sec));
- }
- else
- {
- fprintf_filtered (stderr, "Couldn't fetch register set 2 from core file: %s\n",
- bfd_errmsg (bfd_error));
- }
- }
- registers_fetched();
-}
-\f
-struct target_ops core_ops = {
- "core", "Local core dump file",
- "Use a core file as a target. Specify the filename of the core file.",
- core_open, core_close,
- find_default_attach, core_detach, 0, 0, /* resume, wait */
- get_core_registers,
- 0, 0, /* store_regs, prepare_to_store */
- xfer_memory, core_files_info,
- 0, 0, /* core_insert_breakpoint, core_remove_breakpoint, */
- 0, 0, 0, 0, 0, /* terminal stuff */
- 0, 0, 0, /* kill, load, lookup sym */
- find_default_create_inferior, 0, /* mourn_inferior */
- 0, /* can_run */
- core_stratum, 0, /* next */
- 0, 1, 1, 1, 0, /* all mem, mem, stack, regs, exec */
- 0, 0, /* section pointers */
- OPS_MAGIC, /* Always the last thing */
-};
-
void
_initialize_core()
{
"Use FILE as core dump for examining memory and registers.\n\
No arg means have no core file. This command has been superseded by the\n\
`target core' and `detach' commands.");
- add_target (&core_ops);
+
}
--- /dev/null
+/* Core dump and executable file functions below target vector, for GDB.
+ Copyright 1986, 1987, 1989, 1991, 1992 Free Software Foundation, Inc.
+
+This file is part of GDB.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#include "defs.h"
+#include <errno.h>
+#include <signal.h>
+#include <fcntl.h>
+#include "frame.h" /* required by inferior.h */
+#include "inferior.h"
+#include "symtab.h"
+#include "command.h"
+#include "bfd.h"
+#include "target.h"
+#include "gdbcore.h"
+
+static void
+core_files_info PARAMS ((struct target_ops *));
+
+#ifdef SOLIB_ADD
+static int
+solib_add_stub PARAMS ((char *));
+#endif
+
+static void
+core_close PARAMS ((int));
+
+static void
+get_core_registers PARAMS ((int));
+
+/* Discard all vestiges of any previous core file
+ and mark data and stack spaces as empty. */
+
+/* ARGSUSED */
+static void
+core_close (quitting)
+ int quitting;
+{
+ if (core_bfd) {
+ free (bfd_get_filename (core_bfd));
+ bfd_close (core_bfd);
+ core_bfd = NULL;
+#ifdef CLEAR_SOLIB
+ CLEAR_SOLIB ();
+#endif
+ if (core_ops.to_sections) {
+ free ((PTR)core_ops.to_sections);
+ core_ops.to_sections = NULL;
+ core_ops.to_sections_end = NULL;
+ }
+ }
+}
+
+#ifdef SOLIB_ADD
+/* Stub function for catch_errors around shared library hacking. */
+
+static int
+solib_add_stub (from_tty)
+ char *from_tty;
+{
+ SOLIB_ADD (NULL, (int)from_tty, &core_ops);
+ return 0;
+}
+#endif /* SOLIB_ADD */
+
+/* This routine opens and sets up the core file bfd */
+
+void
+core_open (filename, from_tty)
+ char *filename;
+ int from_tty;
+{
+ const char *p;
+ int siggy;
+ struct cleanup *old_chain;
+ char *temp;
+ bfd *temp_bfd;
+ int ontop;
+ int scratch_chan;
+
+ target_preopen (from_tty);
+ if (!filename)
+ {
+ error (core_bfd?
+ "No core file specified. (Use `detach' to stop debugging a core file.)"
+ : "No core file specified.");
+ }
+
+ filename = tilde_expand (filename);
+ if (filename[0] != '/') {
+ temp = concat (current_directory, "/", filename, NULL);
+ free (filename);
+ filename = temp;
+ }
+
+ old_chain = make_cleanup (free, filename);
+
+ scratch_chan = open (filename, write_files? O_RDWR: O_RDONLY, 0);
+ if (scratch_chan < 0)
+ perror_with_name (filename);
+
+ temp_bfd = bfd_fdopenr (filename, NULL, scratch_chan);
+ if (temp_bfd == NULL)
+ {
+ perror_with_name (filename);
+ }
+
+ if (!bfd_check_format (temp_bfd, bfd_core))
+ {
+ /* Do it after the err msg */
+ make_cleanup (bfd_close, temp_bfd);
+ error ("\"%s\" is not a core dump: %s", filename, bfd_errmsg(bfd_error));
+ }
+
+ /* Looks semi-reasonable. Toss the old core file and work on the new. */
+
+ discard_cleanups (old_chain); /* Don't free filename any more */
+ unpush_target (&core_ops);
+ core_bfd = temp_bfd;
+ old_chain = make_cleanup (core_close, core_bfd);
+
+ validate_files ();
+
+ /* Find the data section */
+ if (build_section_table (core_bfd, &core_ops.to_sections,
+ &core_ops.to_sections_end))
+ error ("Can't find sections in `%s': %s", bfd_get_filename(core_bfd),
+ bfd_errmsg (bfd_error));
+
+ ontop = !push_target (&core_ops);
+ discard_cleanups (old_chain);
+
+ p = bfd_core_file_failing_command (core_bfd);
+ if (p)
+ printf_filtered ("Core was generated by `%s'.\n", p);
+
+ siggy = bfd_core_file_failing_signal (core_bfd);
+ if (siggy > 0)
+ printf_filtered ("Program terminated with signal %d, %s.\n", siggy,
+ safe_strsignal (siggy));
+
+ if (ontop) {
+ /* Fetch all registers from core file */
+ target_fetch_registers (-1);
+
+ /* Add symbols and section mappings for any shared libraries */
+#ifdef SOLIB_ADD
+ catch_errors (solib_add_stub, (char *)from_tty, (char *)0);
+#endif
+
+ /* Now, set up the frame cache, and print the top of stack */
+ set_current_frame (create_new_frame (read_register (FP_REGNUM),
+ read_pc ()));
+ select_frame (get_current_frame (), 0);
+ print_stack_frame (selected_frame, selected_frame_level, 1);
+ } else {
+ warning (
+"you won't be able to access this core file until you terminate\n\
+your %s; do ``info files''", current_target->to_longname);
+ }
+}
+
+void
+core_detach (args, from_tty)
+ char *args;
+ int from_tty;
+{
+ if (args)
+ error ("Too many arguments");
+ unpush_target (&core_ops);
+ if (from_tty)
+ printf_filtered ("No core file now.\n");
+}
+
+/* Get the registers out of a core file. This is the machine-
+ independent part. Fetch_core_registers is the machine-dependent
+ part, typically implemented in the xm-file for each architecture. */
+
+/* We just get all the registers, so we don't use regno. */
+/* ARGSUSED */
+static void
+get_core_registers (regno)
+ int regno;
+{
+ sec_ptr reg_sec;
+ unsigned size;
+ char *the_regs;
+
+ reg_sec = bfd_get_section_by_name (core_bfd, ".reg");
+ if (!reg_sec) goto cant;
+ size = bfd_section_size (core_bfd, reg_sec);
+ the_regs = alloca (size);
+ if (bfd_get_section_contents (core_bfd, reg_sec, the_regs, (file_ptr)0, size))
+ {
+ fetch_core_registers (the_regs, size, 0,
+ (unsigned) bfd_section_vma (abfd,reg_sec));
+ }
+ else
+ {
+cant:
+ fprintf_filtered (stderr, "Couldn't fetch registers from core file: %s\n",
+ bfd_errmsg (bfd_error));
+ }
+
+ /* Now do it again for the float registers, if they exist. */
+ reg_sec = bfd_get_section_by_name (core_bfd, ".reg2");
+ if (reg_sec) {
+ size = bfd_section_size (core_bfd, reg_sec);
+ the_regs = alloca (size);
+ if (bfd_get_section_contents (core_bfd, reg_sec, the_regs, (file_ptr)0,
+ size))
+ {
+ fetch_core_registers (the_regs, size, 2,
+ (unsigned) bfd_section_vma (abfd,reg_sec));
+ }
+ else
+ {
+ fprintf_filtered (stderr, "Couldn't fetch register set 2 from core file: %s\n",
+ bfd_errmsg (bfd_error));
+ }
+ }
+ registers_fetched();
+}
+
+static void
+core_files_info (t)
+ struct target_ops *t;
+{
+ print_section_info (t, core_bfd);
+}
+\f
+struct target_ops core_ops = {
+ "core", "Local core dump file",
+ "Use a core file as a target. Specify the filename of the core file.",
+ core_open, core_close,
+ find_default_attach, core_detach, 0, 0, /* resume, wait */
+ get_core_registers,
+ 0, 0, /* store_regs, prepare_to_store */
+ xfer_memory, core_files_info,
+ 0, 0, /* core_insert_breakpoint, core_remove_breakpoint, */
+ 0, 0, 0, 0, 0, /* terminal stuff */
+ 0, 0, 0, /* kill, load, lookup sym */
+ find_default_create_inferior, 0, /* mourn_inferior */
+ 0, /* can_run */
+ core_stratum, 0, /* next */
+ 0, 1, 1, 1, 0, /* all mem, mem, stack, regs, exec */
+ 0, 0, /* section pointers */
+ OPS_MAGIC, /* Always the last thing */
+};
+
+void
+_initialize_corelow()
+{
+ add_target (&core_ops);
+}
projects / external / binutils.git / commitdiff