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
1992-09-25 19:03:55 +02:00
|
|
|
|
/* Core dump and executable file functions above target vector, for GDB.
|
1992-02-21 02:33:14 +01:00
|
|
|
|
Copyright 1986, 1987, 1989, 1991, 1992 Free Software Foundation, Inc.
|
1991-03-28 17:28:29 +01:00
|
|
|
|
|
|
|
|
|
This file is part of GDB.
|
|
|
|
|
|
1991-06-04 09:31:55 +02:00
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
1991-03-28 17:28:29 +01:00
|
|
|
|
it under the terms of the GNU General Public License as published by
|
1991-06-04 09:31:55 +02:00
|
|
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
|
|
|
(at your option) any later version.
|
1991-03-28 17:28:29 +01:00
|
|
|
|
|
1991-06-04 09:31:55 +02:00
|
|
|
|
This program is distributed in the hope that it will be useful,
|
1991-03-28 17:28:29 +01:00
|
|
|
|
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
|
1991-06-04 09:31:55 +02:00
|
|
|
|
along with this program; if not, write to the Free Software
|
|
|
|
|
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
|
1991-03-28 17:28:29 +01:00
|
|
|
|
|
1992-03-04 00:26:26 +01:00
|
|
|
|
#include "defs.h"
|
1991-03-28 17:28:29 +01:00
|
|
|
|
#include <errno.h>
|
|
|
|
|
#include <signal.h>
|
Make writing to files work properly. (Fixes to BFD are also needed.)
* core.c (core_open): Open file ourselves, read or r/w, depending on
write_files. Use bfd_fdopenr.
* gdbcore.h (write_files): New variable.
* exec.c (write_files): Define variable, add set&show for it.
(exec_file_command): Use write_files to open for read or r/write.
Make shared library reading happen automatically. These changes
are mostly from Peter Schauer <pes@regent.e-technik.tu-muenchen.de>.
* inferior.h (stop_soon_quietly): Add to exported variables.
* infrun.c (child_create_inferior): call solib hook, if defined.
(child_attach): call solib hook, if defined.
* solib.c: Include inferior.h. Add from_tty to so_list as kludge.
(find_solib): Use lookup_misc_func rather than hand-rolled.
(symbol_add_stub): New stub for catch_errors.
(solib_add): Avoid output if !from_tty. Catch errors rather
than just calling symbol_file_add and bombing.
(solib_create_inferior_hook): Interface with the target process
to let it read and alloc shared libs, then figure out what it did.
* core.c (validate_files): Fix typo, soften warning.
(Fix from Hiroto Kagotani <kagotani@cs.titech.ac.jp>.)
* utils.c (fputs_demangled): Avoid duplicate printing if
demangling is off. (Fix from J.T. Conklin <jtc@cayenne.com>.)
* infrun.c (proceed): Cast -1 to (CORE_ADDR) before comparing.
(Fix from pierre@la.tce.com (Pierre Willard).)
* main.c (catch_errors): Change argument to a char * from an int,
since a char * can point to a struct full of glop, but an int
is not guaranteed to be able to hold a pointer.
* breakpoint.c (breakpoint_cond_eval, bpstat_stop_status,
breakpoint_re_set_one, breakpoint_re_set): Adapt.
* core.c (core_open, solib_add_stub): Adapt.
* remote-vx.c (symbol_stub, add_symbol_stub, callers): Adapt.
1991-09-04 09:43:50 +02:00
|
|
|
|
#include <fcntl.h>
|
1991-03-28 17:28:29 +01:00
|
|
|
|
#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"
|
1993-03-31 23:43:25 +02:00
|
|
|
|
#include "dis-asm.h"
|
1991-03-28 17:28:29 +01:00
|
|
|
|
|
|
|
|
|
extern char registers[];
|
|
|
|
|
|
|
|
|
|
/* Hook for `exec_file_command' command to call. */
|
|
|
|
|
|
1992-02-21 02:33:14 +01:00
|
|
|
|
void (*exec_file_display_hook) PARAMS ((char *)) = NULL;
|
1991-03-28 17:28:29 +01:00
|
|
|
|
|
|
|
|
|
/* Binary file diddling handle for the core file. */
|
|
|
|
|
|
|
|
|
|
bfd *core_bfd = NULL;
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* Backward compatability with old way of specifying core files. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
core_file_command (filename, from_tty)
|
|
|
|
|
char *filename;
|
|
|
|
|
int from_tty;
|
|
|
|
|
{
|
1992-09-29 22:51:16 +01:00
|
|
|
|
struct target_ops *t;
|
1992-10-15 14:42:10 +01:00
|
|
|
|
|
1991-04-05 11:02:10 +02:00
|
|
|
|
dont_repeat (); /* Either way, seems bogus. */
|
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
1992-09-25 19:03:55 +02:00
|
|
|
|
|
1992-09-29 22:51:16 +01:00
|
|
|
|
t = find_core_target ();
|
|
|
|
|
if (t != NULL)
|
|
|
|
|
if (!filename)
|
|
|
|
|
(t->to_detach) (filename, from_tty);
|
|
|
|
|
else
|
|
|
|
|
(t->to_open) (filename, from_tty);
|
1991-03-28 17:28:29 +01:00
|
|
|
|
else
|
1992-10-15 14:42:10 +01:00
|
|
|
|
error ("GDB can't read core files on this machine.");
|
1991-03-28 17:28:29 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* Call this to specify the hook for exec_file_command to call back.
|
|
|
|
|
This is called from the x-window display code. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
specify_exec_file_hook (hook)
|
1992-02-21 02:33:14 +01:00
|
|
|
|
void (*hook) PARAMS ((char *));
|
1991-03-28 17:28:29 +01:00
|
|
|
|
{
|
|
|
|
|
exec_file_display_hook = hook;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* The exec file must be closed before running an inferior.
|
|
|
|
|
If it is needed again after the inferior dies, it must
|
|
|
|
|
be reopened. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
close_exec_file ()
|
|
|
|
|
{
|
|
|
|
|
#ifdef FIXME
|
|
|
|
|
if (exec_bfd)
|
|
|
|
|
bfd_tempclose (exec_bfd);
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
reopen_exec_file ()
|
|
|
|
|
{
|
|
|
|
|
#ifdef FIXME
|
|
|
|
|
if (exec_bfd)
|
|
|
|
|
bfd_reopen (exec_bfd);
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* If we have both a core file and an exec file,
|
1991-08-14 02:01:20 +02:00
|
|
|
|
print a warning if they don't go together. */
|
1991-03-28 17:28:29 +01:00
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
validate_files ()
|
|
|
|
|
{
|
|
|
|
|
if (exec_bfd && core_bfd)
|
|
|
|
|
{
|
Make writing to files work properly. (Fixes to BFD are also needed.)
* core.c (core_open): Open file ourselves, read or r/w, depending on
write_files. Use bfd_fdopenr.
* gdbcore.h (write_files): New variable.
* exec.c (write_files): Define variable, add set&show for it.
(exec_file_command): Use write_files to open for read or r/write.
Make shared library reading happen automatically. These changes
are mostly from Peter Schauer <pes@regent.e-technik.tu-muenchen.de>.
* inferior.h (stop_soon_quietly): Add to exported variables.
* infrun.c (child_create_inferior): call solib hook, if defined.
(child_attach): call solib hook, if defined.
* solib.c: Include inferior.h. Add from_tty to so_list as kludge.
(find_solib): Use lookup_misc_func rather than hand-rolled.
(symbol_add_stub): New stub for catch_errors.
(solib_add): Avoid output if !from_tty. Catch errors rather
than just calling symbol_file_add and bombing.
(solib_create_inferior_hook): Interface with the target process
to let it read and alloc shared libs, then figure out what it did.
* core.c (validate_files): Fix typo, soften warning.
(Fix from Hiroto Kagotani <kagotani@cs.titech.ac.jp>.)
* utils.c (fputs_demangled): Avoid duplicate printing if
demangling is off. (Fix from J.T. Conklin <jtc@cayenne.com>.)
* infrun.c (proceed): Cast -1 to (CORE_ADDR) before comparing.
(Fix from pierre@la.tce.com (Pierre Willard).)
* main.c (catch_errors): Change argument to a char * from an int,
since a char * can point to a struct full of glop, but an int
is not guaranteed to be able to hold a pointer.
* breakpoint.c (breakpoint_cond_eval, bpstat_stop_status,
breakpoint_re_set_one, breakpoint_re_set): Adapt.
* core.c (core_open, solib_add_stub): Adapt.
* remote-vx.c (symbol_stub, add_symbol_stub, callers): Adapt.
1991-09-04 09:43:50 +02:00
|
|
|
|
if (!core_file_matches_executable_p (core_bfd, exec_bfd))
|
1992-04-24 03:45:47 +02:00
|
|
|
|
warning ("core file may not match specified executable file.");
|
1991-03-28 17:28:29 +01:00
|
|
|
|
else if (bfd_get_mtime(exec_bfd) > bfd_get_mtime(core_bfd))
|
1992-04-24 03:45:47 +02:00
|
|
|
|
warning ("exec file is newer than core file.");
|
1991-03-28 17:28:29 +01:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Return the name of the executable file as a string.
|
|
|
|
|
ERR nonzero means get error if there is none specified;
|
|
|
|
|
otherwise return 0 in that case. */
|
|
|
|
|
|
|
|
|
|
char *
|
|
|
|
|
get_exec_file (err)
|
|
|
|
|
int err;
|
|
|
|
|
{
|
|
|
|
|
if (exec_bfd) return bfd_get_filename(exec_bfd);
|
|
|
|
|
if (!err) return NULL;
|
|
|
|
|
|
|
|
|
|
error ("No executable file specified.\n\
|
|
|
|
|
Use the \"file\" or \"exec-file\" command.");
|
|
|
|
|
return NULL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
1992-02-21 02:33:14 +01:00
|
|
|
|
/* Report a memory error with error(). */
|
|
|
|
|
|
1991-03-28 17:28:29 +01:00
|
|
|
|
void
|
|
|
|
|
memory_error (status, memaddr)
|
|
|
|
|
int status;
|
|
|
|
|
CORE_ADDR memaddr;
|
|
|
|
|
{
|
|
|
|
|
|
|
|
|
|
if (status == EIO)
|
|
|
|
|
{
|
|
|
|
|
/* Actually, address between memaddr and memaddr + len
|
|
|
|
|
was out of bounds. */
|
1991-09-19 11:13:50 +02:00
|
|
|
|
error ("Cannot access memory at address %s.", local_hex_string(memaddr));
|
1991-03-28 17:28:29 +01:00
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
1992-04-22 18:46:47 +02:00
|
|
|
|
error ("Error accessing memory address %s: %s.",
|
|
|
|
|
local_hex_string (memaddr), safe_strerror (status));
|
1991-03-28 17:28:29 +01:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Same as target_read_memory, but report an error if can't read. */
|
|
|
|
|
void
|
|
|
|
|
read_memory (memaddr, myaddr, len)
|
|
|
|
|
CORE_ADDR memaddr;
|
|
|
|
|
char *myaddr;
|
|
|
|
|
int len;
|
|
|
|
|
{
|
|
|
|
|
int status;
|
|
|
|
|
status = target_read_memory (memaddr, myaddr, len);
|
|
|
|
|
if (status != 0)
|
|
|
|
|
memory_error (status, memaddr);
|
|
|
|
|
}
|
|
|
|
|
|
1993-03-31 23:43:25 +02:00
|
|
|
|
/* Like target_read_memory, but slightly different parameters. */
|
|
|
|
|
int
|
|
|
|
|
dis_asm_read_memory (memaddr, myaddr, len, info)
|
|
|
|
|
bfd_vma memaddr;
|
|
|
|
|
bfd_byte *myaddr;
|
|
|
|
|
int len;
|
|
|
|
|
disassemble_info *info;
|
|
|
|
|
{
|
|
|
|
|
return target_read_memory (memaddr, myaddr, len);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Like memory_error with slightly different parameters. */
|
|
|
|
|
void
|
|
|
|
|
dis_asm_memory_error (status, memaddr, info)
|
|
|
|
|
int status;
|
|
|
|
|
bfd_vma memaddr;
|
|
|
|
|
disassemble_info *info;
|
|
|
|
|
{
|
|
|
|
|
memory_error (status, memaddr);
|
|
|
|
|
}
|
|
|
|
|
|
1991-03-28 17:28:29 +01:00
|
|
|
|
/* Same as target_write_memory, but report an error if can't write. */
|
|
|
|
|
void
|
|
|
|
|
write_memory (memaddr, myaddr, len)
|
|
|
|
|
CORE_ADDR memaddr;
|
|
|
|
|
char *myaddr;
|
|
|
|
|
int len;
|
|
|
|
|
{
|
|
|
|
|
int status;
|
|
|
|
|
|
|
|
|
|
status = target_write_memory (memaddr, myaddr, len);
|
|
|
|
|
if (status != 0)
|
|
|
|
|
memory_error (status, memaddr);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Read an integer from debugged memory, given address and number of bytes. */
|
|
|
|
|
|
|
|
|
|
long
|
|
|
|
|
read_memory_integer (memaddr, len)
|
|
|
|
|
CORE_ADDR memaddr;
|
|
|
|
|
int len;
|
|
|
|
|
{
|
|
|
|
|
char cbuf;
|
|
|
|
|
short sbuf;
|
|
|
|
|
int ibuf;
|
|
|
|
|
long lbuf;
|
|
|
|
|
|
|
|
|
|
if (len == sizeof (char))
|
|
|
|
|
{
|
|
|
|
|
read_memory (memaddr, &cbuf, len);
|
|
|
|
|
return cbuf;
|
|
|
|
|
}
|
|
|
|
|
if (len == sizeof (short))
|
|
|
|
|
{
|
|
|
|
|
read_memory (memaddr, (char *)&sbuf, len);
|
|
|
|
|
SWAP_TARGET_AND_HOST (&sbuf, sizeof (short));
|
|
|
|
|
return sbuf;
|
|
|
|
|
}
|
|
|
|
|
if (len == sizeof (int))
|
|
|
|
|
{
|
|
|
|
|
read_memory (memaddr, (char *)&ibuf, len);
|
|
|
|
|
SWAP_TARGET_AND_HOST (&ibuf, sizeof (int));
|
|
|
|
|
return ibuf;
|
|
|
|
|
}
|
|
|
|
|
if (len == sizeof (lbuf))
|
|
|
|
|
{
|
|
|
|
|
read_memory (memaddr, (char *)&lbuf, len);
|
|
|
|
|
SWAP_TARGET_AND_HOST (&lbuf, sizeof (lbuf));
|
|
|
|
|
return lbuf;
|
|
|
|
|
}
|
|
|
|
|
error ("Cannot handle integers of %d bytes.", len);
|
|
|
|
|
return -1; /* for lint */
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
_initialize_core()
|
|
|
|
|
{
|
|
|
|
|
|
|
|
|
|
add_com ("core-file", class_files, core_file_command,
|
|
|
|
|
"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.");
|
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
1992-09-25 19:03:55 +02:00
|
|
|
|
|
1991-03-28 17:28:29 +01:00
|
|
|
|
}
|