objcopy.c

基于4个mips核的noc设计

	case 'g':
	case 'd':	/* Historic BSD alias for -g.  Used by early NetBSD.  */
	  strip_symbols = STRIP_DEBUG;
	  break;
	case OPTION_STRIP_UNNEEDED:
	  strip_symbols = STRIP_UNNEEDED;
	  break;
	case 'K':
	  add_specific_symbol (optarg, &keep_specific_list);
	  break;
	case 'N':
	  add_specific_symbol (optarg, &strip_specific_list);
	  break;
	case 'o':
	  output_file = optarg;
	  break;
	case 'p':
	  preserve_dates = true;
	  break;
	case 'x':
	  discard_locals = LOCALS_ALL;
	  break;
	case 'X':
	  discard_locals = LOCALS_START_L;
	  break;
	case 'v':
	  verbose = true;
	  break;
	case 'V':
	  show_version = true;
	  break;
	case 0:
	  break;		/* we've been given a long option */
	case 'h':
	  strip_usage (stdout, 0);
	default:
	  strip_usage (stderr, 1);
	}
    }

  if (show_version)
    print_version ("strip");

  /* Default is to strip all symbols.  */
  if (strip_symbols == STRIP_UNDEF
      && discard_locals == LOCALS_UNDEF
      && strip_specific_list == NULL)
    strip_symbols = STRIP_ALL;

  if (output_target == (char *) NULL)
    output_target = input_target;

  i = optind;
  if (i == argc
      || (output_file != NULL && (i + 1) < argc))
    strip_usage (stderr, 1);

  for (; i < argc; i++)
    {
      int hold_status = status;
      struct stat statbuf;
      char *tmpname;

      if (preserve_dates)
	{
	  if (stat (argv[i], &statbuf) < 0)
	    {
	      non_fatal (_("%s: cannot stat: %s"), argv[i], strerror (errno));
	      continue;
	    }
	}

      if (output_file != NULL)
	tmpname = output_file;
      else
	tmpname = make_tempname (argv[i]);
      status = 0;

      copy_file (argv[i], tmpname, input_target, output_target);
      if (status == 0)
	{
	  if (preserve_dates)
	    set_times (tmpname, &statbuf);
	  if (output_file == NULL)
	    smart_rename (tmpname, argv[i], preserve_dates);
	  status = hold_status;
	}
      else
	unlink (tmpname);
      if (output_file == NULL)
	free (tmpname);
    }

  return 0;
}

static int
copy_main (argc, argv)
     int argc;
     char *argv[];
{
  char *input_filename = NULL, *output_filename = NULL;
  char *input_target = NULL, *output_target = NULL;
  boolean show_version = false;
  boolean change_warn = true;
  int c;
  struct section_list *p;
  struct stat statbuf;

  while ((c = getopt_long (argc, argv, "b:i:I:j:K:N:s:O:d:F:L:R:SpgxXVvW:",
			   copy_options, (int *) 0)) != EOF)
    {
      switch (c)
	{
	case 'b':
	  copy_byte = atoi (optarg);
	  if (copy_byte < 0)
	    fatal (_("byte number must be non-negative"));
	  break;

	case 'i':
	  interleave = atoi (optarg);
	  if (interleave < 1)
	    fatal (_("interleave must be positive"));
	  break;

	case 'I':
	case 's':		/* "source" - 'I' is preferred */
	  input_target = optarg;
	  break;

	case 'O':
	case 'd':		/* "destination" - 'O' is preferred */
	  output_target = optarg;
	  break;

	case 'F':
	  input_target = output_target = optarg;
	  break;

	case 'j':
	  p = find_section_list (optarg, true);
	  if (p->remove)
	    fatal (_("%s both copied and removed"), optarg);
	  p->copy = true;
	  sections_copied = true;
	  break;

	case 'R':
	  p = find_section_list (optarg, true);
	  if (p->copy)
	    fatal (_("%s both copied and removed"), optarg);
	  p->remove = true;
	  sections_removed = true;
	  break;

	case 'S':
	  strip_symbols = STRIP_ALL;
	  break;

	case 'g':
	  strip_symbols = STRIP_DEBUG;
	  break;

	case OPTION_STRIP_UNNEEDED:
	  strip_symbols = STRIP_UNNEEDED;
	  break;

	case 'K':
	  add_specific_symbol (optarg, &keep_specific_list);
	  break;

	case 'N':
	  add_specific_symbol (optarg, &strip_specific_list);
	  break;

	case 'L':
	  add_specific_symbol (optarg, &localize_specific_list);
	  break;

	case 'G':
	  add_specific_symbol (optarg, &keepglobal_specific_list);
	  break;

	case 'W':
	  add_specific_symbol (optarg, &weaken_specific_list);
	  break;

	case 'p':
	  preserve_dates = true;
	  break;

	case 'x':
	  discard_locals = LOCALS_ALL;
	  break;

	case 'X':
	  discard_locals = LOCALS_START_L;
	  break;

	case 'v':
	  verbose = true;
	  break;

	case 'V':
	  show_version = true;
	  break;

	case OPTION_WEAKEN:
	  weaken = true;
	  break;

	case OPTION_ADD_SECTION:
	  {
	    const char *s;
	    struct stat st;
	    struct section_add *pa;
	    int len;
	    char *name;
	    FILE *f;

	    s = strchr (optarg, '=');

	    if (s == NULL)
	      fatal (_("bad format for %s"), "--add-section");

	    if (stat (s + 1, & st) < 0)
	      fatal (_("cannot stat: %s: %s"), s + 1, strerror (errno));

	    pa = (struct section_add *) xmalloc (sizeof (struct section_add));

	    len = s - optarg;
	    name = (char *) xmalloc (len + 1);
	    strncpy (name, optarg, len);
	    name[len] = '\0';
	    pa->name = name;

	    pa->filename = s + 1;

	    pa->size = st.st_size;

	    pa->contents = (bfd_byte *) xmalloc (pa->size);
	    f = fopen (pa->filename, FOPEN_RB);

	    if (f == NULL)
	      fatal (_("cannot open: %s: %s"), pa->filename, strerror (errno));

	    if (fread (pa->contents, 1, pa->size, f) == 0
		|| ferror (f))
	      fatal (_("%s: fread failed"), pa->filename);

	    fclose (f);

	    pa->next = add_sections;
	    add_sections = pa;
	  }
	  break;

	case OPTION_CHANGE_START:
	  change_start = parse_vma (optarg, "--change-start");
	  break;

	case OPTION_CHANGE_SECTION_ADDRESS:
	case OPTION_CHANGE_SECTION_LMA:
	case OPTION_CHANGE_SECTION_VMA:
	  {
	    const char *s;
	    int len;
	    char *name;
	    char *option = NULL;
	    bfd_vma val;
	    enum change_action what = CHANGE_IGNORE;

	    switch (c)
	      {
	      case OPTION_CHANGE_SECTION_ADDRESS:
		option = "--change-section-address";
		break;
	      case OPTION_CHANGE_SECTION_LMA:
		option = "--change-section-lma";
		break;
	      case OPTION_CHANGE_SECTION_VMA:
		option = "--change-section-vma";
		break;
	      }

	    s = strchr (optarg, '=');
	    if (s == NULL)
	      {
		s = strchr (optarg, '+');
		if (s == NULL)
		  {
		    s = strchr (optarg, '-');
		    if (s == NULL)
		      fatal (_("bad format for %s"), option);
		  }
	      }

	    len = s - optarg;
	    name = (char *) xmalloc (len + 1);
	    strncpy (name, optarg, len);
	    name[len] = '\0';

	    p = find_section_list (name, true);

	    val = parse_vma (s + 1, option);

	    switch (*s)
	      {
	      case '=': what = CHANGE_SET; break;
	      case '-': val  = - val; /* Drop through.  */
	      case '+': what = CHANGE_MODIFY; break;
	      }

	    switch (c)
	      {
	      case OPTION_CHANGE_SECTION_ADDRESS:
		p->change_vma = what;
		p->vma_val    = val;
		/* Drop through.  */

	      case OPTION_CHANGE_SECTION_LMA:
		p->change_lma = what;
		p->lma_val    = val;
		break;

	      case OPTION_CHANGE_SECTION_VMA:
		p->change_vma = what;
		p->vma_val    = val;
		break;
	      }
	  }
	  break;

	case OPTION_CHANGE_ADDRESSES:
	  change_section_address = parse_vma (optarg, "--change-addresses");
	  change_start = change_section_address;
	  break;

	case OPTION_CHANGE_WARNINGS:
	  change_warn = true;
	  break;

	case OPTION_CHANGE_LEADING_CHAR:
	  change_leading_char = true;
	  break;

	case OPTION_DEBUGGING:
	  convert_debugging = true;
	  break;

	case OPTION_GAP_FILL:
	  {
	    bfd_vma gap_fill_vma;

	    gap_fill_vma = parse_vma (optarg, "--gap-fill");
	    gap_fill = (bfd_byte) gap_fill_vma;
	    if ((bfd_vma) gap_fill != gap_fill_vma)
	      {
		char buff[20];

		sprintf_vma (buff, gap_fill_vma);

		non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"),
			   buff, gap_fill);
	      }
	    gap_fill_set = true;
	  }
	  break;

	case OPTION_NO_CHANGE_WARNINGS:
	  change_warn = false;
	  break;

	case OPTION_PAD_TO:
	  pad_to = parse_vma (optarg, "--pad-to");
	  pad_to_set = true;
	  break;

	case OPTION_REMOVE_LEADING_CHAR:
	  remove_leading_char = true;
	  break;

	case OPTION_REDEFINE_SYM:
	  {
	    /* Push this redefinition onto redefine_symbol_list.  */

	    int len;
	    const char *s;
	    const char *nextarg;
	    char *source, *target;

	    s = strchr (optarg, '=');
	    if (s == NULL)
	      {
		fatal (_("bad format for %s"), "--redefine-sym");
	      }

	    len = s - optarg;
	    source = (char *) xmalloc (len + 1);
	    strncpy (source, optarg, len);
	    source[len] = '\0';

	    nextarg = s + 1;
	    len = strlen (nextarg);
	    target = (char *) xmalloc (len + 1);
	    strcpy (target, nextarg);

	    redefine_list_append (source, target);

	    free (source);
	    free (target);
	  }
	  break;

	case OPTION_SET_SECTION_FLAGS:
	  {
	    const char *s;
	    int len;
	    char *name;

	    s = strchr (optarg, '=');
	    if (s == NULL)
	      fatal (_("bad format for %s"), "--set-section-flags");

	    len = s - optarg;
	    name = (char *) xmalloc (len + 1);
	    strncpy (name, optarg, len);
	    name[len] = '\0';

	    p = find_section_list (name, true);

	    p->set_flags = true;
	    p->flags = parse_flags (s + 1);
	  }
	  break;

	case OPTION_SET_START:
	  set_start = parse_vma (optarg, "--set-start");
	  set_start_set = true;
	  break;

        case OPTION_SREC_LEN:
          Chunk = parse_vma (optarg, "--srec-len");
          break;

        case OPTION_SREC_FORCES3:
	  S3Forced = true;
          break;

	case OPTION_STRIP_SYMBOLS:
	  add_specific_symbols (optarg, &strip_specific_list);
	  break;

	case OPTION_KEEP_SYMBOLS:
	  add_specific_symbols (optarg, &keep_specific_list);
	  break;

	case OPTION_LOCALIZE_SYMBOLS:
	  add_specific_symbols (optarg, &localize_specific_list);
	  break;

	case OPTION_KEEPGLOBAL_SYMBOLS:
	  add_specific_symbols (optarg, &keepglobal_specific_list);