/* 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"
-#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 <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);
+
+static void exec_files_info (struct target_ops *);
+
+static int ignore (CORE_ADDR, char *);
-extern char *getenv();
-extern void child_create_inferior (), child_attach ();
-extern void add_syms_addr_command ();
-extern void symbol_file_command ();
+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;
-/* 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)
{
+ /* 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 ()));
+ }
+
+ /* 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 ()));
}
-#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));
+#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);
+ }
+ bfd_cache_close_all ();
+}
+
+/* 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 if (from_tty)
- printf ("No exec file now.\n");
+ 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)
+ 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 (DEPRECATED_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 (DEPRECATED_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 *
+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, char *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
-/* The function called by target_xfer_memory via our target_ops */
+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;
-int
-exec_xfer_memory (memaddr, myaddr, len, write)
- CORE_ADDR memaddr;
- char *myaddr;
- int len;
- int write;
+ 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");
+ }
+}
+
+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. */
+
+void
+exec_set_section_offsets (bfd_signed_vma text_off, bfd_signed_vma data_off,
+ bfd_signed_vma bss_off)
+{
+ struct section_table *sect;
+
+ for (sect = exec_ops.to_sections;
+ sect < exec_ops.to_sections_end;
+ sect++)
+ {
+ flagword flags;
+
+ 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;
+ }
+ }
+}
-#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 ()
+set_section_command (char *args, int from_tty)
{
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 */
+ for (secname = args; !isspace (*args); args++);
+ seclen = args - secname;
+
+ /* Parse out new virtual address */
+ secaddr = parse_and_eval_address (args);
+
+ 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);
+}
+
+/* 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, char *contents)
+{
+ return 0;
+}
- printf ("\tExecutable file `%s'.\n", bfd_get_filename(exec_bfd));
+/* Find mapped memory. */
- 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));
+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",
- 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;
+
+ init_exec_ops ();
- add_com ("file", class_files, file_command,
- "Use FILE as program to be debugged.\n\
+ 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\
+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.");
+
+ deprecated_add_show_from_set
+ (add_set_cmd ("write", class_support, var_boolean, (char *) &write_files,
+ "Set writing into executable and core 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