static struct vmap *
add_vmap (LdInfo *ldi)
{
  bfd *abfd, *last;
  char *mem, *objname, *filename;
  struct objfile *obj;
  struct vmap *vp;
  int fd;
  ARCH64_DECL (arch64);

  /* This ldi structure was allocated using alloca() in 
     xcoff_relocate_symtab(). Now we need to have persistent object 
     and member names, so we should save them. */

  filename = LDI_FILENAME (ldi, arch64);
  mem = filename + strlen (filename) + 1;
  mem = xstrdup (mem);
  objname = xstrdup (filename);

  fd = LDI_FD (ldi, arch64);
  if (fd < 0)
    /* Note that this opens it once for every member; a possible
       enhancement would be to only open it once for every object.  */
    abfd = bfd_openr (objname, gnutarget);
  else
    abfd = bfd_fdopenr (objname, gnutarget, fd);
  if (!abfd)
    {
      warning (_("Could not open `%s' as an executable file: %s"),
	       objname, bfd_errmsg (bfd_get_error ()));
      return NULL;
    }

  /* make sure we have an object file */

  if (bfd_check_format (abfd, bfd_object))
    vp = map_vmap (abfd, 0);

  else if (bfd_check_format (abfd, bfd_archive))
    {
      last = 0;
      /* FIXME??? am I tossing BFDs?  bfd? */
      while ((last = bfd_openr_next_archived_file (abfd, last)))
	if (strcmp (mem, last->filename) == 0)
	  break;

      if (!last)
	{
	  warning (_("\"%s\": member \"%s\" missing."), objname, mem);
	  bfd_close (abfd);
	  return NULL;
	}

      if (!bfd_check_format (last, bfd_object))
	{
	  warning (_("\"%s\": member \"%s\" not in executable format: %s."),
		   objname, mem, bfd_errmsg (bfd_get_error ()));
	  bfd_close (last);
	  bfd_close (abfd);
	  return NULL;
	}

      vp = map_vmap (last, abfd);
    }
  else
    {
      warning (_("\"%s\": not in executable format: %s."),
	       objname, bfd_errmsg (bfd_get_error ()));
      bfd_close (abfd);
      return NULL;
    }
  obj = allocate_objfile (vp->bfd, 0);
  vp->objfile = obj;

  /* Always add symbols for the main objfile.  */
  if (vp == vmap || auto_solib_add)
    vmap_add_symbols (vp);
  return vp;
}
Exemple #2
0
static struct vmap *
add_vmap (LdInfo *ldi)
{
  bfd *abfd, *last;
  char *mem, *filename;
  struct objfile *obj;
  struct vmap *vp;
  int fd;
  ARCH64_DECL (arch64);

  /* This ldi structure was allocated using alloca() in 
     xcoff_relocate_symtab().  Now we need to have persistent object 
     and member names, so we should save them.  */

  filename = LDI_FILENAME (ldi, arch64);
  mem = filename + strlen (filename) + 1;
  mem = xstrdup (mem);

  fd = LDI_FD (ldi, arch64);
  abfd = gdb_bfd_open (filename, gnutarget, fd < 0 ? -1 : fd);
  if (!abfd)
    {
      warning (_("Could not open `%s' as an executable file: %s"),
	       filename, bfd_errmsg (bfd_get_error ()));
      return NULL;
    }

  /* Make sure we have an object file.  */

  if (bfd_check_format (abfd, bfd_object))
    vp = map_vmap (abfd, 0);

  else if (bfd_check_format (abfd, bfd_archive))
    {
      last = gdb_bfd_openr_next_archived_file (abfd, NULL);
      while (last != NULL)
	{
	  bfd *next;

	  if (strcmp (mem, last->filename) == 0)
	    break;

	  next = gdb_bfd_openr_next_archived_file (abfd, last);
	  gdb_bfd_unref (last);
	  last = next;
	}

      if (!last)
	{
	  warning (_("\"%s\": member \"%s\" missing."), filename, mem);
	  gdb_bfd_unref (abfd);
	  return NULL;
	}

      if (!bfd_check_format (last, bfd_object))
	{
	  warning (_("\"%s\": member \"%s\" not in executable format: %s."),
		   filename, mem, bfd_errmsg (bfd_get_error ()));
	  gdb_bfd_unref (last);
	  gdb_bfd_unref (abfd);
	  return NULL;
	}

      vp = map_vmap (last, abfd);
      /* map_vmap acquired a reference to LAST, so we can release
	 ours.  */
      gdb_bfd_unref (last);
    }
  else
    {
      warning (_("\"%s\": not in executable format: %s."),
	       filename, bfd_errmsg (bfd_get_error ()));
      gdb_bfd_unref (abfd);
      return NULL;
    }
  obj = allocate_objfile (vp->bfd, 0);
  vp->objfile = obj;

  /* Always add symbols for the main objfile.  */
  if (vp == vmap || auto_solib_add)
    vmap_add_symbols (vp);

  /* Anything needing a reference to ABFD has already acquired it, so
     release our local reference.  */
  gdb_bfd_unref (abfd);

  return vp;
}
Exemple #3
0
void
exec_file_attach (char *filename, int from_tty)
{
  /* Remove any previous exec file.  */
  exec_close ();

  /* Now open and digest the file the user requested, if any.  */

  if (!filename)
    {
      if (from_tty)
        printf_unfiltered (_("No executable file now.\n"));

      set_gdbarch_from_file (NULL);
    }
  else
    {
      struct cleanup *cleanups;
      char *scratch_pathname;
      int scratch_chan;
      struct target_section *sections = NULL, *sections_end = NULL;
      char **matching;

      scratch_chan = openp (getenv ("PATH"), OPF_TRY_CWD_FIRST, filename,
		   write_files ? O_RDWR | O_BINARY : O_RDONLY | O_BINARY,
			    &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,
	     &scratch_pathname);
	}
#endif
      if (scratch_chan < 0)
	perror_with_name (filename);
      exec_bfd = bfd_fopen (scratch_pathname, gnutarget,
			    write_files ? FOPEN_RUB : FOPEN_RB,
			    scratch_chan);

      if (!exec_bfd)
	{
	  close (scratch_chan);
	  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);
      cleanups = make_cleanup (xfree, scratch_pathname);

      if (!bfd_check_format_matches (exec_bfd, bfd_object, &matching))
	{
	  /* Make sure to close exec_bfd, or else "run" might try to use
	     it.  */
	  exec_close ();
	  error (_("\"%s\": not in executable format: %s"),
		 scratch_pathname,
		 gdb_bfd_errmsg (bfd_get_error (), matching));
	}

      /* 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 ();
	  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, &sections, &sections_end))
	{
	  /* Make sure to close exec_bfd, or else "run" might try to use
	     it.  */
	  exec_close ();
	  error (_("\"%s\": can't find the file sections: %s"),
		 scratch_pathname, bfd_errmsg (bfd_get_error ()));
	}

      exec_bfd_mtime = bfd_get_mtime (exec_bfd);

      validate_files ();

      set_gdbarch_from_file (exec_bfd);

      /* Add the executable's sections to the current address spaces'
	 list of sections.  This possibly pushes the exec_ops
	 target.  */
      add_target_sections (sections, sections_end);
      xfree (sections);

      /* Tell display code (if any) about the changed file name.  */
      if (deprecated_exec_file_display_hook)
	(*deprecated_exec_file_display_hook) (filename);

      do_cleanups (cleanups);
    }
  bfd_cache_close_all ();
  observer_notify_executable_changed ();
}
Exemple #4
0
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 (from_tty)
        printf_unfiltered ("No executable file now.\n");
    }
  else
    {
      char *scratch_pathname;
      int scratch_chan;

      scratch_chan = openp (getenv ("PATH"), 1, 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"), 1, 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);

      if (!exec_bfd)
	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))
	{
	  /* 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 ()));
	}

#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);
    }
}