1999-04-16 01:35:26 +00:00
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/* Work with executable files, for GDB.
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2001-03-06 08:22:02 +00:00
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Copyright 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
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1998, 1999, 2000, 2001
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1999-07-07 20:19:36 +00:00
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Free Software Foundation, Inc.
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1999-04-16 01:35:26 +00:00
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1999-07-07 20:19:36 +00:00
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This file is part of GDB.
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1999-04-16 01:35:26 +00:00
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1999-07-07 20:19:36 +00:00
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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1999-04-16 01:35:26 +00:00
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1999-07-07 20:19:36 +00:00
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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1999-04-16 01:35:26 +00:00
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1999-07-07 20:19:36 +00:00
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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1999-04-16 01:35:26 +00:00
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#include "defs.h"
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#include "frame.h"
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#include "inferior.h"
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#include "target.h"
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#include "gdbcmd.h"
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#include "language.h"
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#include "symfile.h"
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#include "objfiles.h"
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2000-11-30 Fernando Nasser <fnasser@redhat.com>
* linespec.h: New file. Declarations for linespec.c.
* linespec.c, alpha-tdep.c, breakpoint.c, parse.c, source.c,
symtab.c, tracepoint.c: Include the above.
* completer.c: New file. Line completion stuff for GDB.
(get_gdb_completer_word_break_characters,
get_gdb_completer_quote_characters): New functions. Accessors for
useful completer internal data.
(filename_completer, line_completion_function, skip_quoted): Moved
here from top.c.
* completer.h: New file. Declarations for the above.
* linespec.c (decode_line_1): Use
get_gdb_completer_word_break_characters and
get_gdb_completer_quote_characters.
* top.c: Include completer.h.
(filename_completer, line_completion_function, skip_quoted):
Moved to completer.c.
* corefile.c, exec.c, source.c, symfile.c, linespec.c: Include
completer.h.
* Makefile.in (SFILES): Add completer.c.
(COMMON_OBS): Add completer.o.
(completer.o): New target.
(linespec.o, alpha-tdep.o, breakpoint.o, parse.o, source.o,
symtab.o, tracepoint.o): Add linespec.h to dependencies list.
(corefile.o, exec.o, source.o, symfile.o, linespec.o): Add completer.h
to dependencies list.
2000-12-01 00:43:47 +00:00
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#include "completer.h"
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1999-04-16 01:35:26 +00:00
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#ifdef USG
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#include <sys/types.h>
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#endif
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#include <fcntl.h>
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#include "gdb_string.h"
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#include "gdbcore.h"
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#include <ctype.h>
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#include "gdb_stat.h"
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#ifndef O_BINARY
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#define O_BINARY 0
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#endif
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#include "xcoffsolib.h"
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2000-05-28 01:12:42 +00:00
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struct vmap *map_vmap (bfd *, bfd *);
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1999-04-16 01:35:26 +00:00
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2000-06-04 00:41:10 +00:00
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void (*file_changed_hook) (char *);
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1999-04-16 01:35:26 +00:00
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/* Prototypes for local functions */
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2000-05-28 01:12:42 +00:00
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static void add_to_section_table (bfd *, sec_ptr, PTR);
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1999-04-16 01:35:26 +00:00
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2000-05-28 01:12:42 +00:00
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static void exec_close (int);
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1999-04-16 01:35:26 +00:00
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2000-05-28 01:12:42 +00:00
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static void file_command (char *, int);
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1999-04-16 01:35:26 +00:00
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2000-05-28 01:12:42 +00:00
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static void set_section_command (char *, int);
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1999-04-16 01:35:26 +00:00
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2000-05-28 01:12:42 +00:00
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static void exec_files_info (struct target_ops *);
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1999-04-16 01:35:26 +00:00
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2000-05-28 01:12:42 +00:00
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static void bfdsec_to_vmap (bfd *, sec_ptr, PTR);
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1999-04-16 01:35:26 +00:00
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2000-05-28 01:12:42 +00:00
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static int ignore (CORE_ADDR, char *);
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1999-04-16 01:35:26 +00:00
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2000-05-28 01:12:42 +00:00
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static void init_exec_ops (void);
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1999-04-16 01:35:26 +00:00
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2000-05-28 01:12:42 +00:00
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void _initialize_exec (void);
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1999-04-16 01:35:26 +00:00
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extern int info_verbose;
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/* The target vector for executable files. */
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struct target_ops exec_ops;
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/* The Binary File Descriptor handle for the executable file. */
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bfd *exec_bfd = NULL;
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/* Whether to open exec and core files read-only or read-write. */
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int write_files = 0;
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/* Text start and end addresses (KLUDGE) if needed */
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#ifndef NEED_TEXT_START_END
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#define NEED_TEXT_START_END (0)
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#endif
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CORE_ADDR text_start = 0;
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1999-07-07 20:19:36 +00:00
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CORE_ADDR text_end = 0;
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1999-04-16 01:35:26 +00:00
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struct vmap *vmap;
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2001-01-27 00:43:26 +00:00
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void
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exec_open (char *args, int from_tty)
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{
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target_preopen (from_tty);
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exec_file_attach (args, from_tty);
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}
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1999-04-16 01:35:26 +00:00
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/* ARGSUSED */
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static void
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2000-07-30 01:48:28 +00:00
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exec_close (int quitting)
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1999-04-16 01:35:26 +00:00
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{
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int need_symtab_cleanup = 0;
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struct vmap *vp, *nxt;
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1999-07-07 20:19:36 +00:00
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for (nxt = vmap; nxt != NULL;)
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1999-04-16 01:35:26 +00:00
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{
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vp = nxt;
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nxt = vp->nxt;
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/* if there is an objfile associated with this bfd,
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1999-07-07 20:19:36 +00:00
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free_objfile() will do proper cleanup of objfile *and* bfd. */
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1999-04-16 01:35:26 +00:00
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if (vp->objfile)
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{
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free_objfile (vp->objfile);
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need_symtab_cleanup = 1;
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}
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else if (vp->bfd != exec_bfd)
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/* FIXME-leak: We should be freeing vp->name too, I think. */
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if (!bfd_close (vp->bfd))
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warning ("cannot close \"%s\": %s",
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vp->name, bfd_errmsg (bfd_get_error ()));
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/* FIXME: This routine is #if 0'd in symfile.c. What should we
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1999-07-07 20:19:36 +00:00
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be doing here? Should we just free everything in
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vp->objfile->symtabs? Should free_objfile do that?
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FIXME-as-well: free_objfile already free'd vp->name, so it isn't
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valid here. */
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1999-04-16 01:35:26 +00:00
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free_named_symtabs (vp->name);
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2000-12-15 01:01:51 +00:00
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xfree (vp);
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1999-04-16 01:35:26 +00:00
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}
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vmap = NULL;
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if (exec_bfd)
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{
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char *name = bfd_get_filename (exec_bfd);
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if (!bfd_close (exec_bfd))
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warning ("cannot close \"%s\": %s",
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name, bfd_errmsg (bfd_get_error ()));
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2000-12-15 01:01:51 +00:00
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xfree (name);
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1999-04-16 01:35:26 +00:00
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exec_bfd = NULL;
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}
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if (exec_ops.to_sections)
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{
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2000-12-15 01:01:51 +00:00
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xfree (exec_ops.to_sections);
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1999-04-16 01:35:26 +00:00
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exec_ops.to_sections = NULL;
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exec_ops.to_sections_end = NULL;
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}
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}
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2001-01-27 00:43:26 +00:00
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void
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exec_file_clear (int from_tty)
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{
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/* Remove exec file. */
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unpush_target (&exec_ops);
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if (from_tty)
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printf_unfiltered ("No executable file now.\n");
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}
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1999-04-16 01:35:26 +00:00
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/* Process the first arg in ARGS as the new exec file.
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1999-07-07 20:19:36 +00:00
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This function is intended to be behave essentially the same
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as exec_file_command, except that the latter will detect when
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a target is being debugged, and will ask the user whether it
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should be shut down first. (If the answer is "no", then the
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new file is ignored.)
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1999-04-16 01:35:26 +00:00
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1999-07-07 20:19:36 +00:00
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This file is used by exec_file_command, to do the work of opening
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and processing the exec file after any prompting has happened.
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1999-04-16 01:35:26 +00:00
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1999-07-07 20:19:36 +00:00
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And, it is used by child_attach, when the attach command was
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given a pid but not a exec pathname, and the attach command could
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figure out the pathname from the pid. (In this case, we shouldn't
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ask the user whether the current target should be shut down --
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2001-01-27 00:43:26 +00:00
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we're supplying the exec pathname late for good reason.)
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ARGS is assumed to be the filename. */
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1999-04-16 01:35:26 +00:00
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void
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2001-01-27 00:43:26 +00:00
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exec_file_attach (char *filename, int from_tty)
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1999-04-16 01:35:26 +00:00
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{
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/* Remove any previous exec file. */
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unpush_target (&exec_ops);
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/* Now open and digest the file the user requested, if any. */
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2001-01-27 00:43:26 +00:00
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if (!filename)
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{
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if (from_tty)
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printf_unfiltered ("No executable file now.\n");
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}
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else
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1999-04-16 01:35:26 +00:00
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{
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char *scratch_pathname;
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int scratch_chan;
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1999-07-07 20:19:36 +00:00
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scratch_chan = openp (getenv ("PATH"), 1, filename,
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write_files ? O_RDWR | O_BINARY : O_RDONLY | O_BINARY, 0,
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1999-04-16 01:35:26 +00:00
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&scratch_pathname);
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2000-06-11 16:07:51 +00:00
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#if defined(__GO32__) || defined(_WIN32) || defined(__CYGWIN__)
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1999-04-16 01:35:26 +00:00
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if (scratch_chan < 0)
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1999-07-07 20:19:36 +00:00
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{
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char *exename = alloca (strlen (filename) + 5);
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strcat (strcpy (exename, filename), ".exe");
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scratch_chan = openp (getenv ("PATH"), 1, exename, write_files ?
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O_RDWR | O_BINARY : O_RDONLY | O_BINARY, 0, &scratch_pathname);
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}
|
1999-04-16 01:35:26 +00:00
|
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#endif
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if (scratch_chan < 0)
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perror_with_name (filename);
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exec_bfd = bfd_fdopenr (scratch_pathname, gnutarget, scratch_chan);
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if (!exec_bfd)
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error ("\"%s\": could not open as an executable file: %s",
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scratch_pathname, bfd_errmsg (bfd_get_error ()));
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/* At this point, scratch_pathname and exec_bfd->name both point to the
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1999-07-07 20:19:36 +00:00
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same malloc'd string. However exec_close() will attempt to free it
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via the exec_bfd->name pointer, so we need to make another copy and
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leave exec_bfd as the new owner of the original copy. */
|
1999-12-07 03:56:43 +00:00
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scratch_pathname = xstrdup (scratch_pathname);
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2000-12-15 01:01:51 +00:00
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make_cleanup (xfree, scratch_pathname);
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1999-07-07 20:19:36 +00:00
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1999-04-16 01:35:26 +00:00
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if (!bfd_check_format (exec_bfd, bfd_object))
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{
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/* Make sure to close exec_bfd, or else "run" might try to use
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it. */
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exec_close (0);
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error ("\"%s\": not in executable format: %s",
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scratch_pathname, bfd_errmsg (bfd_get_error ()));
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}
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/* FIXME - This should only be run for RS6000, but the ifdef is a poor
|
1999-07-07 20:19:36 +00:00
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way to accomplish. */
|
1999-04-16 01:35:26 +00:00
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#ifdef IBM6000_TARGET
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/* Setup initial vmap. */
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map_vmap (exec_bfd, 0);
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if (vmap == NULL)
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{
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/* Make sure to close exec_bfd, or else "run" might try to use
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it. */
|
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|
exec_close (0);
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error ("\"%s\": can't find the file sections: %s",
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|
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|
scratch_pathname, bfd_errmsg (bfd_get_error ()));
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}
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|
#endif /* IBM6000_TARGET */
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|
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|
if (build_section_table (exec_bfd, &exec_ops.to_sections,
|
1999-07-07 20:19:36 +00:00
|
|
|
|
&exec_ops.to_sections_end))
|
1999-04-16 01:35:26 +00:00
|
|
|
|
{
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|
/* Make sure to close exec_bfd, or else "run" might try to use
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|
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it. */
|
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|
|
exec_close (0);
|
1999-07-07 20:19:36 +00:00
|
|
|
|
error ("\"%s\": can't find the file sections: %s",
|
1999-04-16 01:35:26 +00:00
|
|
|
|
scratch_pathname, bfd_errmsg (bfd_get_error ()));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* text_end is sometimes used for where to put call dummies. A
|
1999-07-07 20:19:36 +00:00
|
|
|
|
few ports use these for other purposes too. */
|
1999-04-16 01:35:26 +00:00
|
|
|
|
if (NEED_TEXT_START_END)
|
|
|
|
|
{
|
|
|
|
|
struct section_table *p;
|
1999-07-07 20:19:36 +00:00
|
|
|
|
|
1999-04-16 01:35:26 +00:00
|
|
|
|
/* Set text_start to the lowest address of the start of any
|
|
|
|
|
readonly code section and set text_end to the highest
|
|
|
|
|
address of the end of any readonly code section. */
|
|
|
|
|
/* FIXME: The comment above does not match the code. The
|
|
|
|
|
code checks for sections with are either code *or*
|
|
|
|
|
readonly. */
|
1999-07-07 20:19:36 +00:00
|
|
|
|
text_start = ~(CORE_ADDR) 0;
|
|
|
|
|
text_end = (CORE_ADDR) 0;
|
1999-04-16 01:35:26 +00:00
|
|
|
|
for (p = exec_ops.to_sections; p < exec_ops.to_sections_end; p++)
|
|
|
|
|
if (bfd_get_section_flags (p->bfd, p->the_bfd_section)
|
|
|
|
|
& (SEC_CODE | SEC_READONLY))
|
|
|
|
|
{
|
1999-07-07 20:19:36 +00:00
|
|
|
|
if (text_start > p->addr)
|
1999-04-16 01:35:26 +00:00
|
|
|
|
text_start = p->addr;
|
|
|
|
|
if (text_end < p->endaddr)
|
|
|
|
|
text_end = p->endaddr;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
validate_files ();
|
|
|
|
|
|
|
|
|
|
set_gdbarch_from_file (exec_bfd);
|
|
|
|
|
|
|
|
|
|
push_target (&exec_ops);
|
|
|
|
|
|
|
|
|
|
/* Tell display code (if any) about the changed file name. */
|
|
|
|
|
if (exec_file_display_hook)
|
|
|
|
|
(*exec_file_display_hook) (filename);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Process the first arg in ARGS as the new exec file.
|
|
|
|
|
|
1999-07-07 20:19:36 +00:00
|
|
|
|
Note that we have to explicitly ignore additional args, since we can
|
|
|
|
|
be called from file_command(), which also calls symbol_file_command()
|
2001-01-27 00:43:26 +00:00
|
|
|
|
which can take multiple args.
|
|
|
|
|
|
|
|
|
|
If ARGS is NULL, we just want to close the exec file. */
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2001-01-27 00:43:26 +00:00
|
|
|
|
static void
|
2000-07-30 01:48:28 +00:00
|
|
|
|
exec_file_command (char *args, int from_tty)
|
1999-04-16 01:35:26 +00:00
|
|
|
|
{
|
2001-01-27 00:43:26 +00:00
|
|
|
|
char **argv;
|
|
|
|
|
char *filename;
|
|
|
|
|
|
1999-04-16 01:35:26 +00:00
|
|
|
|
target_preopen (from_tty);
|
2001-01-27 00:43:26 +00:00
|
|
|
|
|
|
|
|
|
if (args)
|
|
|
|
|
{
|
|
|
|
|
/* Scan through the args and pick up the first non option arg
|
|
|
|
|
as the filename. */
|
|
|
|
|
|
|
|
|
|
argv = buildargv (args);
|
|
|
|
|
if (argv == NULL)
|
|
|
|
|
nomem (0);
|
|
|
|
|
|
|
|
|
|
make_cleanup_freeargv (argv);
|
|
|
|
|
|
|
|
|
|
for (; (*argv != NULL) && (**argv == '-'); argv++)
|
|
|
|
|
{;
|
|
|
|
|
}
|
|
|
|
|
if (*argv == NULL)
|
|
|
|
|
error ("No executable file name was specified");
|
|
|
|
|
|
|
|
|
|
filename = tilde_expand (*argv);
|
|
|
|
|
make_cleanup (xfree, filename);
|
|
|
|
|
exec_file_attach (filename, from_tty);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
exec_file_attach (NULL, from_tty);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Set both the exec file and the symbol file, in one command.
|
|
|
|
|
What a novelty. Why did GDB go through four major releases before this
|
|
|
|
|
command was added? */
|
|
|
|
|
|
|
|
|
|
static void
|
2000-07-30 01:48:28 +00:00
|
|
|
|
file_command (char *arg, int from_tty)
|
1999-04-16 01:35:26 +00:00
|
|
|
|
{
|
|
|
|
|
/* FIXME, if we lose on reading the symbol file, we should revert
|
|
|
|
|
the exec file, but that's rough. */
|
|
|
|
|
exec_file_command (arg, from_tty);
|
|
|
|
|
symbol_file_command (arg, from_tty);
|
|
|
|
|
if (file_changed_hook)
|
|
|
|
|
file_changed_hook (arg);
|
|
|
|
|
}
|
|
|
|
|
|
1999-07-07 20:19:36 +00:00
|
|
|
|
|
1999-04-16 01:35:26 +00:00
|
|
|
|
/* Locate all mappable sections of a BFD file.
|
|
|
|
|
table_pp_char is a char * to get it through bfd_map_over_sections;
|
|
|
|
|
we cast it back to its proper type. */
|
|
|
|
|
|
|
|
|
|
static void
|
2000-07-30 01:48:28 +00:00
|
|
|
|
add_to_section_table (bfd *abfd, sec_ptr asect, PTR table_pp_char)
|
1999-04-16 01:35:26 +00:00
|
|
|
|
{
|
1999-07-07 20:19:36 +00:00
|
|
|
|
struct section_table **table_pp = (struct section_table **) table_pp_char;
|
1999-04-16 01:35:26 +00:00
|
|
|
|
flagword aflag;
|
|
|
|
|
|
|
|
|
|
aflag = bfd_get_section_flags (abfd, asect);
|
|
|
|
|
if (!(aflag & SEC_ALLOC))
|
|
|
|
|
return;
|
|
|
|
|
if (0 == bfd_section_size (abfd, asect))
|
|
|
|
|
return;
|
|
|
|
|
(*table_pp)->bfd = abfd;
|
|
|
|
|
(*table_pp)->the_bfd_section = asect;
|
|
|
|
|
(*table_pp)->addr = bfd_section_vma (abfd, asect);
|
|
|
|
|
(*table_pp)->endaddr = (*table_pp)->addr + bfd_section_size (abfd, asect);
|
|
|
|
|
(*table_pp)++;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Builds a section table, given args BFD, SECTABLE_PTR, SECEND_PTR.
|
|
|
|
|
Returns 0 if OK, 1 on error. */
|
|
|
|
|
|
|
|
|
|
int
|
2000-07-30 01:48:28 +00:00
|
|
|
|
build_section_table (bfd *some_bfd, struct section_table **start,
|
|
|
|
|
struct section_table **end)
|
1999-04-16 01:35:26 +00:00
|
|
|
|
{
|
|
|
|
|
unsigned count;
|
|
|
|
|
|
|
|
|
|
count = bfd_count_sections (some_bfd);
|
|
|
|
|
if (*start)
|
2000-12-15 01:01:51 +00:00
|
|
|
|
xfree (* start);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
*start = (struct section_table *) xmalloc (count * sizeof (**start));
|
|
|
|
|
*end = *start;
|
1999-07-07 20:19:36 +00:00
|
|
|
|
bfd_map_over_sections (some_bfd, add_to_section_table, (char *) end);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
if (*end > *start + count)
|
2001-02-25 04:45:12 +00:00
|
|
|
|
internal_error (__FILE__, __LINE__, "failed internal consistency check");
|
1999-04-16 01:35:26 +00:00
|
|
|
|
/* We could realloc the table, but it probably loses for most files. */
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
2000-07-30 01:48:28 +00:00
|
|
|
|
bfdsec_to_vmap (bfd *abfd, sec_ptr sect, PTR arg3)
|
1999-04-16 01:35:26 +00:00
|
|
|
|
{
|
|
|
|
|
struct vmap_and_bfd *vmap_bfd = (struct vmap_and_bfd *) arg3;
|
|
|
|
|
struct vmap *vp;
|
|
|
|
|
|
|
|
|
|
vp = vmap_bfd->pvmap;
|
|
|
|
|
|
|
|
|
|
if ((bfd_get_section_flags (abfd, sect) & SEC_LOAD) == 0)
|
|
|
|
|
return;
|
|
|
|
|
|
|
|
|
|
if (STREQ (bfd_section_name (abfd, sect), ".text"))
|
|
|
|
|
{
|
|
|
|
|
vp->tstart = bfd_section_vma (abfd, sect);
|
|
|
|
|
vp->tend = vp->tstart + bfd_section_size (abfd, sect);
|
|
|
|
|
vp->tvma = bfd_section_vma (abfd, sect);
|
|
|
|
|
vp->toffs = sect->filepos;
|
|
|
|
|
}
|
|
|
|
|
else if (STREQ (bfd_section_name (abfd, sect), ".data"))
|
|
|
|
|
{
|
|
|
|
|
vp->dstart = bfd_section_vma (abfd, sect);
|
|
|
|
|
vp->dend = vp->dstart + bfd_section_size (abfd, sect);
|
|
|
|
|
vp->dvma = bfd_section_vma (abfd, sect);
|
|
|
|
|
}
|
|
|
|
|
/* Silently ignore other types of sections. (FIXME?) */
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Make a vmap for ABFD which might be a member of the archive ARCH.
|
|
|
|
|
Return the new vmap. */
|
|
|
|
|
|
|
|
|
|
struct vmap *
|
2000-07-30 01:48:28 +00:00
|
|
|
|
map_vmap (bfd *abfd, bfd *arch)
|
1999-04-16 01:35:26 +00:00
|
|
|
|
{
|
|
|
|
|
struct vmap_and_bfd vmap_bfd;
|
|
|
|
|
struct vmap *vp, **vpp;
|
|
|
|
|
|
|
|
|
|
vp = (struct vmap *) xmalloc (sizeof (*vp));
|
|
|
|
|
memset ((char *) vp, '\0', sizeof (*vp));
|
|
|
|
|
vp->nxt = 0;
|
|
|
|
|
vp->bfd = abfd;
|
|
|
|
|
vp->name = bfd_get_filename (arch ? arch : abfd);
|
|
|
|
|
vp->member = arch ? bfd_get_filename (abfd) : "";
|
1999-07-07 20:19:36 +00:00
|
|
|
|
|
1999-04-16 01:35:26 +00:00
|
|
|
|
vmap_bfd.pbfd = arch;
|
|
|
|
|
vmap_bfd.pvmap = vp;
|
|
|
|
|
bfd_map_over_sections (abfd, bfdsec_to_vmap, &vmap_bfd);
|
|
|
|
|
|
|
|
|
|
/* Find the end of the list and append. */
|
|
|
|
|
for (vpp = &vmap; *vpp; vpp = &(*vpp)->nxt)
|
|
|
|
|
;
|
|
|
|
|
*vpp = vp;
|
|
|
|
|
|
|
|
|
|
return vp;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Read or write the exec file.
|
|
|
|
|
|
|
|
|
|
Args are address within a BFD file, address within gdb address-space,
|
|
|
|
|
length, and a flag indicating whether to read or write.
|
|
|
|
|
|
|
|
|
|
Result is a length:
|
|
|
|
|
|
1999-07-07 20:19:36 +00:00
|
|
|
|
0: We cannot handle this address and length.
|
|
|
|
|
> 0: We have handled N bytes starting at this address.
|
|
|
|
|
(If N == length, we did it all.) We might be able
|
|
|
|
|
to handle more bytes beyond this length, but no
|
|
|
|
|
promises.
|
|
|
|
|
< 0: We cannot handle this address, but if somebody
|
|
|
|
|
else handles (-N) bytes, we can start from there.
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
1999-07-07 20:19:36 +00:00
|
|
|
|
The same routine is used to handle both core and exec files;
|
|
|
|
|
we just tail-call it with more arguments to select between them. */
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
|
|
|
|
int
|
2000-07-30 01:48:28 +00:00
|
|
|
|
xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write,
|
* exec.c (xfer_memory): Add attrib argument.
* infptrace.c (child_xfer_memory): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
* remote-adapt.c (adapt_xfer_inferior_memory): Likewise.
* remote-array.c (array_xfer_memory): Likewise.
* remote-bug.c (bug_xfer_memory): Likewise.
* remote-e7000.c (e7000_xfer_inferior_memory): Likewise.
* remote-eb.c (eb_xfer_inferior_memory): Likewise.
* remote-es.c (es1800_xfer_inferior_memory): Likewise.
* remote-mips.c (mips_xfer_memory): Likewise.
* remote-mm.c (mm_xfer_inferior_memory): Likewise.
* remote-nindy.c (nindy_xfer_inferior_memory): Likewise.
* remote-os9k.c (rombug_xfer_inferior_memory): Likewise.
* remote-rdi.c (arm_rdi_xfer_memory): Likewise.
* remote-rdp.c (remote_rdp_xfer_inferior_memory): Likewise.
* remote-sds.c (sds_xfer_memory): Likewise.
* remote-sim.c (gdbsim_xfer_inferior_memory): Likewise.
* remote-st.c (st2000_xfer_inferior_memory): Likewise.
* remote-udi.c (udi_xfer_inferior_memory): Likewise.
* remote-vx.c (vx_xfer_memory): Likewise.
* remote.c (remote_xfer_memory): Likewise.
* target.c (debug_to_xfer_memory, do_xfer_memory): Likewise.
* target.h (child_xfer_memory, do_xfer_memory, xfer_memory): Likewise.
* target.h (#include "memattr.h"): Added.
(target_ops.to_xfer_memory): Add attrib argument.
* wince.c (_initialize_inftarg): Removed call to set_dcache_state.
* dcache.h (set_dcache_state): Removed declaration.
* dcache.c (set_dcache_state): Removed definition
* dcache.c: Update module comment, as dcache is now enabled and
disabled with memory region attributes instead of by the global
variable "remotecache". Add comment describing the interaction
between dcache and memory region attributes.
(dcache_xfer_memory): Add comment describing benefits of moving
cache writeback to a higher level.
(dcache_struct): Removed cache_has_stuff field. This was used to
record whether the cache had been accessed in order to invalidate
it when it was disabled. However, this is not needed because the
cache is write through and the code that enables, disables, and
deletes memory regions invalidate the cache. Add comment which
suggests that we could be more selective and only invalidate those
cache lines containing data from those memory regions.
(dcache_invalidate): Updated.
(dcache_xfer_memory): Updated.
(dcache_alloc): Don't abort() if dcache_enabled_p is clear.
(dcache_xfer_memory): Removed code that called do_xfer_memory() to
perform a uncached transfer if dcache_enabled_p was clear. This
function is now only called if caching is enabled for the memory
region.
(dcache_info): Always print cache info.
* target.c (do_xfer_memory): Add attrib argument.
(target_xfer_memory, target_xfer_memory_partial): Break transfer
into chunks defined by memory regions, pass region attributes to
do_xfer_memory().
* dcache.c (dcache_read_line, dcache_write_line): Likewise.
* Makefile.in (SFILES): Add memattr.c.
(COMMON_OBS): Add memattr.o.
(dcache.o): Add target.h to dependencies.
* memattr.c: New file.
* memattr.h: Likewise.
2001-01-23 22:48:56 +00:00
|
|
|
|
struct mem_attrib *attrib,
|
2000-07-30 01:48:28 +00:00
|
|
|
|
struct target_ops *target)
|
1999-04-16 01:35:26 +00:00
|
|
|
|
{
|
|
|
|
|
boolean res;
|
|
|
|
|
struct section_table *p;
|
|
|
|
|
CORE_ADDR nextsectaddr, memend;
|
2000-06-04 00:41:10 +00:00
|
|
|
|
boolean (*xfer_fn) (bfd *, sec_ptr, PTR, file_ptr, bfd_size_type);
|
2001-03-22 23:58:37 +00:00
|
|
|
|
asection *section = NULL;
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
|
|
|
|
if (len <= 0)
|
2001-02-25 04:45:12 +00:00
|
|
|
|
internal_error (__FILE__, __LINE__, "failed internal consistency check");
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
|
|
|
|
if (overlay_debugging)
|
|
|
|
|
{
|
|
|
|
|
section = find_pc_overlay (memaddr);
|
|
|
|
|
if (pc_in_unmapped_range (memaddr, section))
|
|
|
|
|
memaddr = overlay_mapped_address (memaddr, section);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
memend = memaddr + len;
|
|
|
|
|
xfer_fn = write ? bfd_set_section_contents : bfd_get_section_contents;
|
|
|
|
|
nextsectaddr = memend;
|
|
|
|
|
|
|
|
|
|
for (p = target->to_sections; p < target->to_sections_end; p++)
|
|
|
|
|
{
|
|
|
|
|
if (overlay_debugging && section && p->the_bfd_section &&
|
|
|
|
|
strcmp (section->name, p->the_bfd_section->name) != 0)
|
1999-07-07 20:19:36 +00:00
|
|
|
|
continue; /* not the section we need */
|
1999-04-16 01:35:26 +00:00
|
|
|
|
if (memaddr >= p->addr)
|
1999-07-07 20:19:36 +00:00
|
|
|
|
if (memend <= p->endaddr)
|
1999-04-16 01:35:26 +00:00
|
|
|
|
{
|
|
|
|
|
/* Entire transfer is within this section. */
|
|
|
|
|
res = xfer_fn (p->bfd, p->the_bfd_section, myaddr,
|
|
|
|
|
memaddr - p->addr, len);
|
|
|
|
|
return (res != 0) ? len : 0;
|
|
|
|
|
}
|
|
|
|
|
else if (memaddr >= p->endaddr)
|
|
|
|
|
{
|
|
|
|
|
/* This section ends before the transfer starts. */
|
|
|
|
|
continue;
|
|
|
|
|
}
|
1999-07-07 20:19:36 +00:00
|
|
|
|
else
|
1999-04-16 01:35:26 +00:00
|
|
|
|
{
|
|
|
|
|
/* This section overlaps the transfer. Just do half. */
|
|
|
|
|
len = p->endaddr - memaddr;
|
|
|
|
|
res = xfer_fn (p->bfd, p->the_bfd_section, myaddr,
|
|
|
|
|
memaddr - p->addr, len);
|
|
|
|
|
return (res != 0) ? len : 0;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
nextsectaddr = min (nextsectaddr, p->addr);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (nextsectaddr >= memend)
|
1999-07-07 20:19:36 +00:00
|
|
|
|
return 0; /* We can't help */
|
1999-04-16 01:35:26 +00:00
|
|
|
|
else
|
1999-07-07 20:19:36 +00:00
|
|
|
|
return -(nextsectaddr - memaddr); /* Next boundary where we can help */
|
1999-04-16 01:35:26 +00:00
|
|
|
|
}
|
|
|
|
|
|
1999-07-07 20:19:36 +00:00
|
|
|
|
|
1999-04-16 01:35:26 +00:00
|
|
|
|
void
|
2000-07-30 01:48:28 +00:00
|
|
|
|
print_section_info (struct target_ops *t, bfd *abfd)
|
1999-04-16 01:35:26 +00:00
|
|
|
|
{
|
|
|
|
|
struct section_table *p;
|
|
|
|
|
|
1999-07-07 20:19:36 +00:00
|
|
|
|
printf_filtered ("\t`%s', ", bfd_get_filename (abfd));
|
1999-04-16 01:35:26 +00:00
|
|
|
|
wrap_here (" ");
|
1999-07-07 20:19:36 +00:00
|
|
|
|
printf_filtered ("file type %s.\n", bfd_get_target (abfd));
|
1999-04-16 01:35:26 +00:00
|
|
|
|
if (abfd == exec_bfd)
|
|
|
|
|
{
|
|
|
|
|
printf_filtered ("\tEntry point: ");
|
|
|
|
|
print_address_numeric (bfd_get_start_address (abfd), 1, gdb_stdout);
|
|
|
|
|
printf_filtered ("\n");
|
|
|
|
|
}
|
|
|
|
|
for (p = t->to_sections; p < t->to_sections_end; p++)
|
|
|
|
|
{
|
|
|
|
|
/* FIXME-32x64 need a print_address_numeric with field width */
|
|
|
|
|
printf_filtered ("\t%s", local_hex_string_custom ((unsigned long) p->addr, "08l"));
|
|
|
|
|
printf_filtered (" - %s", local_hex_string_custom ((unsigned long) p->endaddr, "08l"));
|
|
|
|
|
if (info_verbose)
|
|
|
|
|
printf_filtered (" @ %s",
|
|
|
|
|
local_hex_string_custom ((unsigned long) p->the_bfd_section->filepos, "08l"));
|
|
|
|
|
printf_filtered (" is %s", bfd_section_name (p->bfd, p->the_bfd_section));
|
|
|
|
|
if (p->bfd != abfd)
|
|
|
|
|
{
|
|
|
|
|
printf_filtered (" in %s", bfd_get_filename (p->bfd));
|
|
|
|
|
}
|
|
|
|
|
printf_filtered ("\n");
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
2000-07-30 01:48:28 +00:00
|
|
|
|
exec_files_info (struct target_ops *t)
|
1999-04-16 01:35:26 +00:00
|
|
|
|
{
|
|
|
|
|
print_section_info (t, exec_bfd);
|
|
|
|
|
|
|
|
|
|
if (vmap)
|
|
|
|
|
{
|
|
|
|
|
struct vmap *vp;
|
|
|
|
|
|
|
|
|
|
printf_unfiltered ("\tMapping info for file `%s'.\n", vmap->name);
|
1999-09-09 00:02:17 +00:00
|
|
|
|
printf_unfiltered ("\t %*s %*s %*s %*s %8.8s %s\n",
|
|
|
|
|
strlen_paddr (), "tstart",
|
|
|
|
|
strlen_paddr (), "tend",
|
|
|
|
|
strlen_paddr (), "dstart",
|
|
|
|
|
strlen_paddr (), "dend",
|
|
|
|
|
"section",
|
1999-07-07 20:19:36 +00:00
|
|
|
|
"file(member)");
|
|
|
|
|
|
|
|
|
|
for (vp = vmap; vp; vp = vp->nxt)
|
1999-09-09 00:02:17 +00:00
|
|
|
|
printf_unfiltered ("\t0x%s 0x%s 0x%s 0x%s %s%s%s%s\n",
|
|
|
|
|
paddr (vp->tstart),
|
|
|
|
|
paddr (vp->tend),
|
|
|
|
|
paddr (vp->dstart),
|
|
|
|
|
paddr (vp->dend),
|
|
|
|
|
vp->name,
|
1999-07-07 20:19:36 +00:00
|
|
|
|
*vp->member ? "(" : "", vp->member,
|
|
|
|
|
*vp->member ? ")" : "");
|
1999-04-16 01:35:26 +00:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
1999-06-14 18:08:47 +00:00
|
|
|
|
/* msnyder 5/21/99:
|
|
|
|
|
exec_set_section_offsets sets the offsets of all the sections
|
|
|
|
|
in the exec objfile. */
|
|
|
|
|
|
|
|
|
|
void
|
2000-07-30 01:48:28 +00:00
|
|
|
|
exec_set_section_offsets (bfd_signed_vma text_off, bfd_signed_vma data_off,
|
|
|
|
|
bfd_signed_vma bss_off)
|
1999-06-14 18:08:47 +00:00
|
|
|
|
{
|
|
|
|
|
struct section_table *sect;
|
1999-07-07 20:19:36 +00:00
|
|
|
|
|
|
|
|
|
for (sect = exec_ops.to_sections;
|
|
|
|
|
sect < exec_ops.to_sections_end;
|
1999-06-14 18:08:47 +00:00
|
|
|
|
sect++)
|
|
|
|
|
{
|
|
|
|
|
flagword flags;
|
|
|
|
|
|
|
|
|
|
flags = bfd_get_section_flags (exec_bfd, sect->the_bfd_section);
|
|
|
|
|
|
|
|
|
|
if (flags & SEC_CODE)
|
|
|
|
|
{
|
1999-07-07 20:19:36 +00:00
|
|
|
|
sect->addr += text_off;
|
1999-06-14 18:08:47 +00:00
|
|
|
|
sect->endaddr += text_off;
|
|
|
|
|
}
|
|
|
|
|
else if (flags & (SEC_DATA | SEC_LOAD))
|
|
|
|
|
{
|
1999-07-07 20:19:36 +00:00
|
|
|
|
sect->addr += data_off;
|
1999-06-14 18:08:47 +00:00
|
|
|
|
sect->endaddr += data_off;
|
|
|
|
|
}
|
|
|
|
|
else if (flags & SEC_ALLOC)
|
|
|
|
|
{
|
1999-07-07 20:19:36 +00:00
|
|
|
|
sect->addr += bss_off;
|
1999-06-14 18:08:47 +00:00
|
|
|
|
sect->endaddr += bss_off;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
1999-04-16 01:35:26 +00:00
|
|
|
|
static void
|
2000-07-30 01:48:28 +00:00
|
|
|
|
set_section_command (char *args, int from_tty)
|
1999-04-16 01:35:26 +00:00
|
|
|
|
{
|
|
|
|
|
struct section_table *p;
|
|
|
|
|
char *secname;
|
|
|
|
|
unsigned seclen;
|
|
|
|
|
unsigned long secaddr;
|
|
|
|
|
char secprint[100];
|
|
|
|
|
long offset;
|
|
|
|
|
|
|
|
|
|
if (args == 0)
|
|
|
|
|
error ("Must specify section name and its virtual address");
|
|
|
|
|
|
|
|
|
|
/* Parse out section name */
|
1999-07-07 20:19:36 +00:00
|
|
|
|
for (secname = args; !isspace (*args); args++);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
seclen = args - secname;
|
|
|
|
|
|
|
|
|
|
/* Parse out new virtual address */
|
|
|
|
|
secaddr = parse_and_eval_address (args);
|
|
|
|
|
|
1999-07-07 20:19:36 +00:00
|
|
|
|
for (p = exec_ops.to_sections; p < exec_ops.to_sections_end; p++)
|
|
|
|
|
{
|
|
|
|
|
if (!strncmp (secname, bfd_section_name (exec_bfd, p->the_bfd_section), seclen)
|
|
|
|
|
&& bfd_section_name (exec_bfd, p->the_bfd_section)[seclen] == '\0')
|
|
|
|
|
{
|
|
|
|
|
offset = secaddr - p->addr;
|
|
|
|
|
p->addr += offset;
|
|
|
|
|
p->endaddr += offset;
|
|
|
|
|
if (from_tty)
|
|
|
|
|
exec_files_info (&exec_ops);
|
|
|
|
|
return;
|
|
|
|
|
}
|
1999-04-16 01:35:26 +00:00
|
|
|
|
}
|
|
|
|
|
if (seclen >= sizeof (secprint))
|
|
|
|
|
seclen = sizeof (secprint) - 1;
|
|
|
|
|
strncpy (secprint, secname, seclen);
|
|
|
|
|
secprint[seclen] = '\0';
|
|
|
|
|
error ("Section %s not found", secprint);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* If mourn is being called in all the right places, this could be say
|
|
|
|
|
`gdb internal error' (since generic_mourn calls
|
|
|
|
|
breakpoint_init_inferior). */
|
|
|
|
|
|
|
|
|
|
static int
|
2000-07-30 01:48:28 +00:00
|
|
|
|
ignore (CORE_ADDR addr, char *contents)
|
1999-04-16 01:35:26 +00:00
|
|
|
|
{
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Fill in the exec file target vector. Very few entries need to be
|
|
|
|
|
defined. */
|
|
|
|
|
|
|
|
|
|
void
|
2000-07-30 01:48:28 +00:00
|
|
|
|
init_exec_ops (void)
|
1999-04-16 01:35:26 +00:00
|
|
|
|
{
|
|
|
|
|
exec_ops.to_shortname = "exec";
|
|
|
|
|
exec_ops.to_longname = "Local exec file";
|
|
|
|
|
exec_ops.to_doc = "Use an executable file as a target.\n\
|
|
|
|
|
Specify the filename of the executable file.";
|
2001-01-27 00:43:26 +00:00
|
|
|
|
exec_ops.to_open = exec_open;
|
1999-04-16 01:35:26 +00:00
|
|
|
|
exec_ops.to_close = exec_close;
|
|
|
|
|
exec_ops.to_attach = find_default_attach;
|
|
|
|
|
exec_ops.to_require_attach = find_default_require_attach;
|
|
|
|
|
exec_ops.to_require_detach = find_default_require_detach;
|
|
|
|
|
exec_ops.to_xfer_memory = xfer_memory;
|
|
|
|
|
exec_ops.to_files_info = exec_files_info;
|
|
|
|
|
exec_ops.to_insert_breakpoint = ignore;
|
|
|
|
|
exec_ops.to_remove_breakpoint = ignore;
|
|
|
|
|
exec_ops.to_create_inferior = find_default_create_inferior;
|
|
|
|
|
exec_ops.to_clone_and_follow_inferior = find_default_clone_and_follow_inferior;
|
|
|
|
|
exec_ops.to_stratum = file_stratum;
|
|
|
|
|
exec_ops.to_has_memory = 1;
|
1999-07-07 20:19:36 +00:00
|
|
|
|
exec_ops.to_magic = OPS_MAGIC;
|
1999-04-16 01:35:26 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void
|
2000-07-30 01:48:28 +00:00
|
|
|
|
_initialize_exec (void)
|
1999-04-16 01:35:26 +00:00
|
|
|
|
{
|
|
|
|
|
struct cmd_list_element *c;
|
|
|
|
|
|
|
|
|
|
init_exec_ops ();
|
|
|
|
|
|
|
|
|
|
if (!dbx_commands)
|
|
|
|
|
{
|
|
|
|
|
c = add_cmd ("file", class_files, file_command,
|
|
|
|
|
"Use FILE as program to be debugged.\n\
|
|
|
|
|
It is read for its symbols, for getting the contents of pure memory,\n\
|
|
|
|
|
and it is the program executed when you use the `run' command.\n\
|
|
|
|
|
If FILE cannot be found as specified, your execution directory path\n\
|
|
|
|
|
($PATH) is searched for a command of that name.\n\
|
|
|
|
|
No arg means to have no executable file and no symbols.", &cmdlist);
|
|
|
|
|
c->completer = filename_completer;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
c = add_cmd ("exec-file", class_files, exec_file_command,
|
1999-07-07 20:19:36 +00:00
|
|
|
|
"Use FILE as program for getting contents of pure memory.\n\
|
1999-04-16 01:35:26 +00:00
|
|
|
|
If FILE cannot be found as specified, your execution directory path\n\
|
|
|
|
|
is searched for a command of that name.\n\
|
|
|
|
|
No arg means have no executable file.", &cmdlist);
|
|
|
|
|
c->completer = filename_completer;
|
|
|
|
|
|
|
|
|
|
add_com ("section", class_files, set_section_command,
|
1999-07-07 20:19:36 +00:00
|
|
|
|
"Change the base address of section SECTION of the exec file to ADDR.\n\
|
1999-04-16 01:35:26 +00:00
|
|
|
|
This can be used if the exec file does not contain section addresses,\n\
|
|
|
|
|
(such as in the a.out format), or when the addresses specified in the\n\
|
|
|
|
|
file itself are wrong. Each section must be changed separately. The\n\
|
|
|
|
|
``info files'' command lists all the sections and their addresses.");
|
|
|
|
|
|
|
|
|
|
add_show_from_set
|
1999-07-07 20:19:36 +00:00
|
|
|
|
(add_set_cmd ("write", class_support, var_boolean, (char *) &write_files,
|
1999-04-16 01:35:26 +00:00
|
|
|
|
"Set writing into executable and core files.",
|
|
|
|
|
&setlist),
|
|
|
|
|
&showlist);
|
1999-07-07 20:19:36 +00:00
|
|
|
|
|
1999-04-16 01:35:26 +00:00
|
|
|
|
add_target (&exec_ops);
|
|
|
|
|
}
|