/* Work with executable files, for GDB.
- Copyright (C) 1988, 1989 Free Software Foundation, Inc.
-This file is part of GDB.
+ Copyright 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
+ 1997, 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation,
+ Inc.
-GDB 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 1, or (at your option)
-any later version.
+ This file is part of GDB.
-GDB 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.
+ 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.
-You should have received a copy of the GNU General Public License
-along with GDB; see the file COPYING. If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+ 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., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
-#include <stdio.h>
#include "defs.h"
-#include "param.h"
#include "frame.h"
#include "inferior.h"
#include "target.h"
+#include "gdbcmd.h"
+#include "language.h"
+#include "symfile.h"
+#include "objfiles.h"
+#include "completer.h"
+#include "value.h"
+#include "exec.h"
+#include "observer.h"
-#ifdef USG
-#include <sys/types.h>
-#endif
-
-#include <sys/param.h>
#include <fcntl.h>
+#include "readline/readline.h"
+#include "gdb_string.h"
#include "gdbcore.h"
-#ifdef STILL_NEEDED_FOR_DECSTATION
-#include <sys/dir.h> /* For DECstations */
-#include <sys/user.h> /* After a.out.h */
-#include <sys/file.h>
+#include <ctype.h>
+#include "gdb_stat.h"
+#ifndef O_BINARY
+#define O_BINARY 0
#endif
-#include <ctype.h>
-#include <sys/stat.h>
+#include "xcoffsolib.h"
+
+struct vmap *map_vmap (bfd *, bfd *);
+
+void (*deprecated_file_changed_hook) (char *);
+
+/* Prototypes for local functions */
+
+static void exec_close (int);
+
+static void file_command (char *, int);
+
+static void set_section_command (char *, int);
-extern char *getenv();
-extern void child_create_inferior (), child_attach ();
-extern void add_syms_addr_command ();
-extern void symbol_file_command ();
+static void exec_files_info (struct target_ops *);
+
+static int ignore (CORE_ADDR, bfd_byte *);
+
+static void init_exec_ops (void);
+
+void _initialize_exec (void);
+
+/* The target vector for executable files. */
+
+struct target_ops exec_ops;
/* The Binary File Descriptor handle for the executable file. */
bfd *exec_bfd = NULL;
-/* The base and bounds of the table of the exec file's sections. */
+/* Whether to open exec and core files read-only or read-write. */
-struct section_table *exec_sections, *exec_sections_end;
+int write_files = 0;
+static void
+show_write_files (struct ui_file *file, int from_tty,
+ struct cmd_list_element *c, const char *value)
+{
+ fprintf_filtered (file, _("Writing into executable and core files is %s.\n"),
+ value);
+}
-/* Forward decl */
-extern struct target_ops exec_ops;
+struct vmap *vmap;
void
-exec_close (quitting)
- int quitting;
+exec_open (char *args, int from_tty)
{
- if (exec_bfd) {
- bfd_close (exec_bfd);
- exec_bfd = NULL;
- }
+ target_preopen (from_tty);
+ exec_file_attach (args, from_tty);
+}
+
+static void
+exec_close (int quitting)
+{
+ int need_symtab_cleanup = 0;
+ struct vmap *vp, *nxt;
+
+ for (nxt = vmap; nxt != NULL;)
+ {
+ vp = nxt;
+ nxt = vp->nxt;
+
+ /* if there is an objfile associated with this bfd,
+ free_objfile() will do proper cleanup of objfile *and* bfd. */
+
+ if (vp->objfile)
+ {
+ free_objfile (vp->objfile);
+ need_symtab_cleanup = 1;
+ }
+ else if (vp->bfd != exec_bfd)
+ /* FIXME-leak: We should be freeing vp->name too, I think. */
+ if (!bfd_close (vp->bfd))
+ warning (_("cannot close \"%s\": %s"),
+ vp->name, bfd_errmsg (bfd_get_error ()));
+
+ /* FIXME: This routine is #if 0'd in symfile.c. What should we
+ be doing here? Should we just free everything in
+ vp->objfile->symtabs? Should free_objfile do that?
+ FIXME-as-well: free_objfile already free'd vp->name, so it isn't
+ valid here. */
+ free_named_symtabs (vp->name);
+ xfree (vp);
+ }
+
+ vmap = NULL;
+
+ if (exec_bfd)
+ {
+ char *name = bfd_get_filename (exec_bfd);
+
+ if (!bfd_close (exec_bfd))
+ warning (_("cannot close \"%s\": %s"),
+ name, bfd_errmsg (bfd_get_error ()));
+ xfree (name);
+ exec_bfd = NULL;
+ }
+
+ if (exec_ops.to_sections)
+ {
+ xfree (exec_ops.to_sections);
+ exec_ops.to_sections = NULL;
+ exec_ops.to_sections_end = NULL;
+ }
}
void
-exec_file_command (filename, from_tty)
- char *filename;
- int from_tty;
+exec_file_clear (int from_tty)
{
- target_preopen (from_tty);
+ /* Remove exec file. */
+ unpush_target (&exec_ops);
+ if (from_tty)
+ printf_unfiltered (_("No executable file now.\n"));
+}
+
+/* Process the first arg in ARGS as the new exec file.
+
+ This function is intended to be behave essentially the same
+ as exec_file_command, except that the latter will detect when
+ a target is being debugged, and will ask the user whether it
+ should be shut down first. (If the answer is "no", then the
+ new file is ignored.)
+
+ This file is used by exec_file_command, to do the work of opening
+ and processing the exec file after any prompting has happened.
+
+ And, it is used by child_attach, when the attach command was
+ given a pid but not a exec pathname, and the attach command could
+ figure out the pathname from the pid. (In this case, we shouldn't
+ ask the user whether the current target should be shut down --
+ we're supplying the exec pathname late for good reason.)
+
+ ARGS is assumed to be the filename. */
+
+void
+exec_file_attach (char *filename, int from_tty)
+{
/* Remove any previous exec file. */
unpush_target (&exec_ops);
/* Now open and digest the file the user requested, if any. */
- if (filename)
+ if (!filename)
+ {
+ if (from_tty)
+ printf_unfiltered (_("No executable file now.\n"));
+ }
+ else
{
char *scratch_pathname;
int scratch_chan;
-
- filename = tilde_expand (filename);
- make_cleanup (free, filename);
-
-/* FIXME, if writeable is set, open for read/write. */
- scratch_chan = openp (getenv ("PATH"), 1, filename, O_RDONLY, 0,
+
+ scratch_chan = openp (getenv ("PATH"), OPF_TRY_CWD_FIRST, filename,
+ write_files ? O_RDWR | O_BINARY : O_RDONLY | O_BINARY, 0,
&scratch_pathname);
+#if defined(__GO32__) || defined(_WIN32) || defined(__CYGWIN__)
+ if (scratch_chan < 0)
+ {
+ char *exename = alloca (strlen (filename) + 5);
+ strcat (strcpy (exename, filename), ".exe");
+ scratch_chan = openp (getenv ("PATH"), OPF_TRY_CWD_FIRST, exename,
+ write_files ? O_RDWR | O_BINARY : O_RDONLY | O_BINARY, 0,
+ &scratch_pathname);
+ }
+#endif
if (scratch_chan < 0)
perror_with_name (filename);
+ exec_bfd = bfd_fdopenr (scratch_pathname, gnutarget, scratch_chan);
- exec_bfd = bfd_fdopenr (scratch_pathname, NULL, scratch_chan);
if (!exec_bfd)
- error ("Could not open `%s' as an executable file: %s",
- scratch_pathname, bfd_errmsg (bfd_error));
+ error (_("\"%s\": could not open as an executable file: %s"),
+ scratch_pathname, bfd_errmsg (bfd_get_error ()));
+
+ /* At this point, scratch_pathname and exec_bfd->name both point to the
+ same malloc'd string. However exec_close() will attempt to free it
+ via the exec_bfd->name pointer, so we need to make another copy and
+ leave exec_bfd as the new owner of the original copy. */
+ scratch_pathname = xstrdup (scratch_pathname);
+ make_cleanup (xfree, scratch_pathname);
+
if (!bfd_check_format (exec_bfd, bfd_object))
- error ("\"%s\": not in executable format: %s.",
- scratch_pathname, bfd_errmsg (bfd_error));
-
-#if FIXME
-/* This code needs to be incorporated into BFD */
-#ifdef COFF_ENCAPSULATE
- /* If we have a coff header, it can give us better values for
- text_start and exec_data_start. This is particularly useful
- for remote debugging of embedded systems. */
- if (N_FLAGS(exec_aouthdr) & N_FLAGS_COFF_ENCAPSULATE)
{
- struct coffheader ch;
- int val;
- val = lseek (execchan, -(sizeof (AOUTHDR) + sizeof (ch)), 1);
- if (val == -1)
- perror_with_name (filename);
- val = myread (execchan, &ch, sizeof (ch));
- if (val < 0)
- perror_with_name (filename);
- text_start = ch.text_start;
- exec_data_start = ch.data_start;
- } else
-#endif
- {
- text_start =
- IS_OBJECT_FILE (exec_aouthdr) ? 0 : N_TXTADDR (exec_aouthdr);
- exec_data_start = IS_OBJECT_FILE (exec_aouthdr)
- ? exec_aouthdr.a_text : N_DATADDR (exec_aouthdr);
+ /* Make sure to close exec_bfd, or else "run" might try to use
+ it. */
+ exec_close (0);
+ error (_("\"%s\": not in executable format: %s"),
+ scratch_pathname, bfd_errmsg (bfd_get_error ()));
}
-#endif FIXME
- if (build_section_table (exec_bfd, &exec_sections, &exec_sections_end))
- error ("Can't find the file sections in `%s': %s",
- exec_bfd->filename, bfd_errmsg (bfd_error));
+ /* FIXME - This should only be run for RS6000, but the ifdef is a poor
+ way to accomplish. */
+#ifdef DEPRECATED_IBM6000_TARGET
+ /* Setup initial vmap. */
+
+ map_vmap (exec_bfd, 0);
+ if (vmap == NULL)
+ {
+ /* Make sure to close exec_bfd, or else "run" might try to use
+ it. */
+ exec_close (0);
+ error (_("\"%s\": can't find the file sections: %s"),
+ scratch_pathname, bfd_errmsg (bfd_get_error ()));
+ }
+#endif /* DEPRECATED_IBM6000_TARGET */
+
+ if (build_section_table (exec_bfd, &exec_ops.to_sections,
+ &exec_ops.to_sections_end))
+ {
+ /* Make sure to close exec_bfd, or else "run" might try to use
+ it. */
+ exec_close (0);
+ error (_("\"%s\": can't find the file sections: %s"),
+ scratch_pathname, bfd_errmsg (bfd_get_error ()));
+ }
+
+#ifdef DEPRECATED_HPUX_TEXT_END
+ DEPRECATED_HPUX_TEXT_END (&exec_ops);
+#endif
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);
+ if (deprecated_exec_file_display_hook)
+ (*deprecated_exec_file_display_hook) (filename);
}
- else if (from_tty)
- printf ("No exec file now.\n");
+ bfd_cache_close_all ();
+ observer_notify_executable_changed (NULL);
+}
+
+/* Process the first arg in ARGS as the new exec file.
+
+ Note that we have to explicitly ignore additional args, since we can
+ be called from file_command(), which also calls symbol_file_command()
+ which can take multiple args.
+
+ If ARGS is NULL, we just want to close the exec file. */
+
+static void
+exec_file_command (char *args, int from_tty)
+{
+ char **argv;
+ char *filename;
+
+ target_preopen (from_tty);
+
+ 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);
}
/* 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? */
-void
-file_command (arg, from_tty)
- char *arg;
- int from_tty;
+static void
+file_command (char *arg, int from_tty)
{
/* 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 (deprecated_file_changed_hook)
+ deprecated_file_changed_hook (arg);
}
-
\f
-/* Locate all mappable sections of a BFD file. */
-void
-add_to_section_table (abfd, asect, table_pp)
- bfd *abfd;
- sec_ptr asect;
- struct section_table **table_pp;
+/* 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
+add_to_section_table (bfd *abfd, struct bfd_section *asect,
+ void *table_pp_char)
{
+ struct section_table **table_pp = (struct section_table **) table_pp_char;
flagword aflag;
aflag = bfd_get_section_flags (abfd, asect);
- /* FIXME, we need to handle BSS segment here...it alloc's but doesn't load */
- if (!(aflag & SEC_LOAD))
+ if (!(aflag & SEC_ALLOC))
+ return;
+ if (0 == bfd_section_size (abfd, asect))
return;
- (*table_pp)->sec_ptr = asect;
+ (*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
-build_section_table (some_bfd, start, end)
- bfd *some_bfd;
- struct section_table **start, **end;
+build_section_table (struct bfd *some_bfd, struct section_table **start,
+ struct section_table **end)
{
unsigned count;
count = bfd_count_sections (some_bfd);
- if (count == 0)
- abort(); /* return 1? */
if (*start)
- free (*start);
+ xfree (* start);
*start = (struct section_table *) xmalloc (count * sizeof (**start));
*end = *start;
- bfd_map_over_sections (some_bfd, add_to_section_table, end);
+ bfd_map_over_sections (some_bfd, add_to_section_table, (char *) end);
if (*end > *start + count)
- abort();
+ internal_error (__FILE__, __LINE__, _("failed internal consistency check"));
/* We could realloc the table, but it probably loses for most files. */
return 0;
}
\f
+static void
+bfdsec_to_vmap (struct bfd *abfd, struct bfd_section *sect, void *arg3)
+{
+ 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 (strcmp (bfd_section_name (abfd, sect), ".text") == 0)
+ {
+ 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 (strcmp (bfd_section_name (abfd, sect), ".data") == 0)
+ {
+ 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 *
+map_vmap (bfd *abfd, bfd *arch)
+{
+ 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) : "";
+
+ 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;
+}
+\f
/* Read or write the exec file.
- Args are address within exec file, address within gdb address-space,
+ 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:
- 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.
+ 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.
- The same routine is used to handle both core and exec files;
- we just tail-call it with more arguments to select between them. */
+ The same routine is used to handle both core and exec files;
+ we just tail-call it with more arguments to select between them. */
int
-xfer_memory (memaddr, myaddr, len, write, abfd, sections, sections_end)
- CORE_ADDR memaddr;
- char *myaddr;
- int len;
- int write;
- bfd *abfd;
- struct section_table *sections, *sections_end;
+xfer_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len, int write,
+ struct mem_attrib *attrib, struct target_ops *target)
{
- boolean res;
+ int res;
struct section_table *p;
CORE_ADDR nextsectaddr, memend;
- boolean (*xfer_fn) ();
+ asection *section = NULL;
if (len <= 0)
- abort();
+ internal_error (__FILE__, __LINE__, _("failed internal consistency check"));
+
+ 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 = sections; p < sections_end; p++)
+ for (p = target->to_sections; p < target->to_sections_end; p++)
{
- if (p->addr <= memaddr)
- if (p->endaddr >= memend)
- {
- /* Entire transfer is within this section. */
- res = xfer_fn (abfd, p->sec_ptr, myaddr, memaddr - p->addr, len);
- return (res != false)? len: 0;
- }
- else if (p->endaddr <= memaddr)
- {
- /* This section ends before the transfer starts. */
- continue;
- }
- else
- {
- /* This section overlaps the transfer. Just do half. */
- len = p->endaddr - memaddr;
- res = xfer_fn (abfd, p->sec_ptr, myaddr, memaddr - p->addr, len);
- return (res != false)? len: 0;
- }
- else if (p->addr < nextsectaddr)
- nextsectaddr = p->addr;
+ if (overlay_debugging && section && p->the_bfd_section &&
+ strcmp (section->name, p->the_bfd_section->name) != 0)
+ continue; /* not the section we need */
+ if (memaddr >= p->addr)
+ {
+ if (memend <= p->endaddr)
+ {
+ /* Entire transfer is within this section. */
+ if (write)
+ res = bfd_set_section_contents (p->bfd, p->the_bfd_section,
+ myaddr, memaddr - p->addr,
+ len);
+ else
+ res = bfd_get_section_contents (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;
+ }
+ else
+ {
+ /* This section overlaps the transfer. Just do half. */
+ len = p->endaddr - memaddr;
+ if (write)
+ res = bfd_set_section_contents (p->bfd, p->the_bfd_section,
+ myaddr, memaddr - p->addr,
+ len);
+ else
+ res = bfd_get_section_contents (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)
- return 0; /* We can't help */
+ return 0; /* We can't help */
else
- return - (nextsectaddr - memaddr); /* Next boundary where we can help */
+ return -(nextsectaddr - memaddr); /* Next boundary where we can help */
}
+\f
+
+void
+print_section_info (struct target_ops *t, bfd *abfd)
+{
+ struct section_table *p;
+ /* FIXME: 16 is not wide enough when TARGET_ADDR_BIT > 64. */
+ int wid = TARGET_ADDR_BIT <= 32 ? 8 : 16;
-/* The function called by target_xfer_memory via our target_ops */
+ printf_filtered ("\t`%s', ", bfd_get_filename (abfd));
+ wrap_here (" ");
+ printf_filtered (_("file type %s.\n"), bfd_get_target (abfd));
+ if (abfd == exec_bfd)
+ {
+ printf_filtered (_("\tEntry point: "));
+ deprecated_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++)
+ {
+ printf_filtered ("\t%s", hex_string_custom (p->addr, wid));
+ printf_filtered (" - %s", hex_string_custom (p->endaddr, wid));
+
+ /* FIXME: A format of "08l" is not wide enough for file offsets
+ larger than 4GB. OTOH, making it "016l" isn't desirable either
+ since most output will then be much wider than necessary. It
+ may make sense to test the size of the file and choose the
+ format string accordingly. */
+ /* FIXME: i18n: Need to rewrite this sentence. */
+ if (info_verbose)
+ printf_filtered (" @ %s",
+ hex_string_custom (p->the_bfd_section->filepos, 8));
+ 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");
+ }
+}
-int
-exec_xfer_memory (memaddr, myaddr, len, write)
- CORE_ADDR memaddr;
- char *myaddr;
- int len;
- int write;
+static void
+exec_files_info (struct target_ops *t)
{
- return xfer_memory (memaddr, myaddr, len, write,
- exec_bfd, exec_sections, exec_sections_end);
+ print_section_info (t, exec_bfd);
+
+ if (vmap)
+ {
+ struct vmap *vp;
+
+ printf_unfiltered (_("\tMapping info for file `%s'.\n"), vmap->name);
+ printf_unfiltered ("\t %*s %*s %*s %*s %8.8s %s\n",
+ strlen_paddr (), "tstart",
+ strlen_paddr (), "tend",
+ strlen_paddr (), "dstart",
+ strlen_paddr (), "dend",
+ "section",
+ "file(member)");
+
+ for (vp = vmap; vp; vp = vp->nxt)
+ 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,
+ *vp->member ? "(" : "", vp->member,
+ *vp->member ? ")" : "");
+ }
}
+/* msnyder 5/21/99:
+ exec_set_section_offsets sets the offsets of all the sections
+ in the exec objfile. */
-#ifdef FIXME
-#ifdef REG_STACK_SEGMENT
-/* MOVE TO BFD... */
- /* Pyramids and AM29000s have an extra segment in the virtual address space
- for the (control) stack of register-window frames. The AM29000 folk
- call it the "register stack" rather than the "memory stack". */
- else if (memaddr >= reg_stack_start && memaddr < reg_stack_end)
- {
- i = min (len, reg_stack_end - memaddr);
- fileptr = memaddr - reg_stack_start + reg_stack_offset;
- wanna_xfer = coredata;
- }
-#endif /* REG_STACK_SEGMENT */
-#endif FIXME
-\f
-static void
-exec_files_info ()
+void
+exec_set_section_offsets (bfd_signed_vma text_off, bfd_signed_vma data_off,
+ bfd_signed_vma bss_off)
{
- struct section_table *p;
+ struct section_table *sect;
- printf ("\tExecutable file `%s'.\n", bfd_get_filename(exec_bfd));
+ for (sect = exec_ops.to_sections;
+ sect < exec_ops.to_sections_end;
+ sect++)
+ {
+ flagword flags;
- for (p = exec_sections; p < exec_sections_end; p++)
- printf("\texecutable from 0x%08x to 0x%08x is %s\n",
- p->addr, p->endaddr,
- bfd_section_name (exec_bfd, p->sec_ptr));
+ flags = bfd_get_section_flags (exec_bfd, sect->the_bfd_section);
+
+ if (flags & SEC_CODE)
+ {
+ sect->addr += text_off;
+ sect->endaddr += text_off;
+ }
+ else if (flags & (SEC_DATA | SEC_LOAD))
+ {
+ sect->addr += data_off;
+ sect->endaddr += data_off;
+ }
+ else if (flags & SEC_ALLOC)
+ {
+ sect->addr += bss_off;
+ sect->endaddr += bss_off;
+ }
+ }
}
static void
-set_section_command (args, from_tty)
- char *args;
- int from_tty;
+set_section_command (char *args, int from_tty)
{
struct section_table *p;
char *secname;
long offset;
if (args == 0)
- error ("Must specify section name and its virtual address");
+ error (_("Must specify section name and its virtual address"));
/* Parse out section name */
- for (secname = args; !isspace(*args); args++) ;
+ for (secname = args; !isspace (*args); args++);
seclen = args - secname;
/* Parse out new virtual address */
secaddr = parse_and_eval_address (args);
- for (p = exec_sections; p < exec_sections_end; p++) {
- if (!strncmp (secname, bfd_section_name (exec_bfd, p->sec_ptr), seclen)
- && bfd_section_name (exec_bfd, p->sec_ptr)[seclen] == '\0') {
- offset = secaddr - p->addr;
- p->addr += offset;
- p->endaddr += offset;
- exec_files_info();
- return;
+ 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;
+ }
}
- }
if (seclen >= sizeof (secprint))
seclen = sizeof (secprint) - 1;
strncpy (secprint, secname, seclen);
secprint[seclen] = '\0';
- error ("Section %s not found", secprint);
+ 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
+ignore (CORE_ADDR addr, bfd_byte *contents)
+{
+ return 0;
+}
+
+/* Find mapped memory. */
+
+extern void
+exec_set_find_memory_regions (int (*func) (int (*) (CORE_ADDR,
+ unsigned long,
+ int, int, int,
+ void *),
+ void *))
+{
+ exec_ops.to_find_memory_regions = func;
}
-struct target_ops exec_ops = {
- "exec", "Local exec file",
- "Use an executable file as a target.\n\
-Specify the filename of the executable file.",
- exec_file_command, exec_close, /* open, close */
- child_attach, 0, 0, 0, /* attach, detach, resume, wait, */
- 0, 0, /* fetch_registers, store_registers, */
- 0, 0, 0, /* prepare_to_store, conv_to, conv_from, */
- exec_xfer_memory, exec_files_info,
- 0, 0, /* insert_breakpoint, remove_breakpoint, */
- 0, 0, 0, 0, 0, /* terminal stuff */
- 0, 0, /* kill, load */
- add_syms_addr_command,
- 0, 0, /* call fn, lookup sym */
- child_create_inferior,
- 0, /* mourn_inferior */
- file_stratum, 0, /* next */
- 0, 1, 0, 0, 0, /* all mem, mem, stack, regs, exec */
- OPS_MAGIC, /* Always the last thing */
-};
+static char *exec_make_note_section (bfd *, int *);
+
+/* Fill in the exec file target vector. Very few entries need to be
+ defined. */
+
+static void
+init_exec_ops (void)
+{
+ 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.";
+ exec_ops.to_open = exec_open;
+ exec_ops.to_close = exec_close;
+ exec_ops.to_attach = find_default_attach;
+ exec_ops.deprecated_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_stratum = file_stratum;
+ exec_ops.to_has_memory = 1;
+ exec_ops.to_make_corefile_notes = exec_make_note_section;
+ exec_ops.to_magic = OPS_MAGIC;
+}
void
-_initialize_exec()
+_initialize_exec (void)
{
+ struct cmd_list_element *c;
- add_com ("file", class_files, file_command,
- "Use FILE as program to be debugged.\n\
+ 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.");
+No arg means to have no executable file and no symbols."), &cmdlist);
+ set_cmd_completer (c, filename_completer);
+ }
- add_com ("exec-file", class_files, exec_file_command,
- "Use FILE as program for getting contents of pure memory.\n\
+ c = add_cmd ("exec-file", class_files, exec_file_command, _("\
+Use FILE as program for getting contents of pure memory.\n\
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.");
+No arg means have no executable file."), &cmdlist);
+ set_cmd_completer (c, filename_completer);
- add_com ("section", class_files, set_section_command,
- "Change the base address of section SECTION of the exec file to ADDR.\n\
+ add_com ("section", class_files, set_section_command, _("\
+Change the base address of section SECTION of the exec file to ADDR.\n\
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.");
+``info files'' command lists all the sections and their addresses."));
+
+ add_setshow_boolean_cmd ("write", class_support, &write_files, _("\
+Set writing into executable and core files."), _("\
+Show writing into executable and core files."), NULL,
+ NULL,
+ show_write_files,
+ &setlist, &showlist);
add_target (&exec_ops);
}
+
+static char *
+exec_make_note_section (bfd *obfd, int *note_size)
+{
+ error (_("Can't create a corefile"));
+}
projects / deliverable / binutils-gdb.git / blobdiff