symmisc.c

早期freebsd实现

		: (TYPE_CODE (SYMBOL_TYPE (symbol)) == TYPE_CODE_STRUCT
		   ? "struct" : "union")),
	       SYMBOL_NAME (symbol));
	  type_print_1 (SYMBOL_TYPE (symbol), "", outfile, 1, depth);
	}
      fprintf (outfile, ";\n");
    }
  else
    {
      if (SYMBOL_CLASS (symbol) == LOC_TYPEDEF)
	fprintf (outfile, "typedef ");
      if (SYMBOL_TYPE (symbol))
	{
	  /* Print details of types, except for enums where it's clutter.  */
	  type_print_1 (SYMBOL_TYPE (symbol), SYMBOL_NAME (symbol), outfile,
			TYPE_CODE (SYMBOL_TYPE (symbol)) != TYPE_CODE_ENUM,
			depth);
	  fprintf (outfile, "; ");
	}
      else
	fprintf (outfile, "%s ", SYMBOL_NAME (symbol));

      switch (SYMBOL_CLASS (symbol))
	{
	case LOC_CONST:
	  fprintf (outfile, "const %ld (0x%lx),",
		   SYMBOL_VALUE (symbol), SYMBOL_VALUE (symbol));
	  break;

	case LOC_CONST_BYTES:
	  fprintf (outfile, "const %u hex bytes:",
		   TYPE_LENGTH (SYMBOL_TYPE (symbol)));
	  {
	    unsigned i;
	    for (i = 0; i < TYPE_LENGTH (SYMBOL_TYPE (symbol)); i++)
	      fprintf (outfile, " %2x",
			 (unsigned)SYMBOL_VALUE_BYTES (symbol) [i]);
	    fprintf (outfile, ",");
	  }
	  break;

	case LOC_STATIC:
	  fprintf (outfile, "static at 0x%x,", SYMBOL_VALUE_ADDRESS (symbol));
	  break;

	case LOC_REGISTER:
	  fprintf (outfile, "register %ld,", SYMBOL_VALUE (symbol));
	  break;

	case LOC_ARG:
	  if (SYMBOL_BASEREG_VALID (symbol))
	    {
	      fprintf (outfile, "arg at 0x%lx from register %d,",
		       SYMBOL_VALUE (symbol), SYMBOL_BASEREG (symbol));
	    }
	  else
	    {
	      fprintf (outfile, "arg at 0x%lx,", SYMBOL_VALUE (symbol));
	    }
	  break;

	case LOC_LOCAL_ARG:
	  if (SYMBOL_BASEREG_VALID (symbol))
	    {
	      fprintf (outfile, "arg at offset 0x%lx from register %d,",
		       SYMBOL_VALUE (symbol), SYMBOL_BASEREG (symbol));
	    }
	  else
	    {
	      fprintf (outfile, "arg at offset 0x%lx from fp,",
		       SYMBOL_VALUE (symbol));
	    }

	case LOC_REF_ARG:
	  fprintf (outfile, "reference arg at 0x%lx,", SYMBOL_VALUE (symbol));
	  break;

	case LOC_REGPARM:
	  fprintf (outfile, "parameter register %ld,", SYMBOL_VALUE (symbol));
	  break;

	case LOC_LOCAL:
	  if (SYMBOL_BASEREG_VALID (symbol))
	    {
	      fprintf (outfile, "local at 0x%lx from register %d",
		       SYMBOL_VALUE (symbol), SYMBOL_BASEREG (symbol));
	    }
	  else
	    {
	      fprintf (outfile, "local at 0x%lx,", SYMBOL_VALUE (symbol));
	    }
	  break;

	case LOC_TYPEDEF:
	  break;

	case LOC_LABEL:
	  fprintf (outfile, "label at 0x%lx", SYMBOL_VALUE_ADDRESS (symbol));
	  break;

	case LOC_BLOCK:
	  fprintf (outfile, "block (object 0x%x) starting at 0x%x,",
		   (unsigned int) SYMBOL_BLOCK_VALUE (symbol),
		   BLOCK_START (SYMBOL_BLOCK_VALUE (symbol)));
	  break;

        default:
	  fprintf (outfile, "botched symbol class %x", SYMBOL_CLASS (symbol));
	  break;
	}
    }
  fprintf (outfile, "\n");
}

void
maintenance_print_psymbols (args, from_tty)
     char *args;
     int from_tty;
{
  char **argv;
  FILE *outfile;
  struct cleanup *cleanups;
  char *symname = NULL;
  char *filename = DEV_TTY;
  struct objfile *objfile;
  struct partial_symtab *ps;

  dont_repeat ();

  if (args == NULL)
    {
      error ("print-psymbols takes an output file name and optional symbol file name");
    }
  else if ((argv = buildargv (args)) == NULL)
    {
      nomem (0);
    }
  cleanups = make_cleanup (freeargv, (char *) argv);

  if (argv[0] != NULL)
    {
      filename = argv[0];
      /* If a second arg is supplied, it is a source file name to match on */
      if (argv[1] != NULL)
	{
	  symname = argv[1];
	}
    }

  filename = tilde_expand (filename);
  make_cleanup (free, filename);
  
  outfile = fopen (filename, "w");
  if (outfile == 0)
    perror_with_name (filename);
  make_cleanup (fclose, outfile);

  immediate_quit++;
  ALL_PSYMTABS (objfile, ps)
    if (symname == NULL || (strcmp (symname, ps -> filename) == 0))
      dump_psymtab (objfile, ps, outfile);
  immediate_quit--;
  do_cleanups (cleanups);
}

static void
print_partial_symbol (p, count, what, outfile)
     struct partial_symbol *p;
     int count;
     char *what;
     FILE *outfile;
{

  fprintf_filtered (outfile, "  %s partial symbols:\n", what);
  while (count-- > 0)
    {
      fprintf_filtered (outfile, "    `%s', ", SYMBOL_NAME(p));
      switch (SYMBOL_NAMESPACE (p))
	{
	case UNDEF_NAMESPACE:
	  fputs_filtered ("undefined namespace, ", outfile);
	  break;
	case VAR_NAMESPACE:
	  /* This is the usual thing -- don't print it */
	  break;
	case STRUCT_NAMESPACE:
	  fputs_filtered ("struct namespace, ", outfile);
	  break;
	case LABEL_NAMESPACE:
	  fputs_filtered ("label namespace, ", outfile);
	  break;
	default:
	  fputs_filtered ("<invalid namespace>, ", outfile);
	  break;
	}
      switch (SYMBOL_CLASS (p))
	{
	case LOC_UNDEF:
	  fputs_filtered ("undefined", outfile);
	  break;
	case LOC_CONST:
	  fputs_filtered ("constant int", outfile);
	  break;
	case LOC_STATIC:
	  fputs_filtered ("static", outfile);
	  break;
	case LOC_REGISTER:
	  fputs_filtered ("register", outfile);
	  break;
	case LOC_ARG:
	  fputs_filtered ("pass by value", outfile);
	  break;
	case LOC_REF_ARG:
	  fputs_filtered ("pass by reference", outfile);
	  break;
	case LOC_REGPARM:
	  fputs_filtered ("register parameter", outfile);
	  break;
	case LOC_LOCAL:
	  fputs_filtered ("stack parameter", outfile);
	  break;
	case LOC_TYPEDEF:
	  fputs_filtered ("type", outfile);
	  break;
	case LOC_LABEL:
	  fputs_filtered ("label", outfile);
	  break;
	case LOC_BLOCK:
	  fputs_filtered ("function", outfile);
	  break;
	case LOC_CONST_BYTES:
	  fputs_filtered ("constant bytes", outfile);
	  break;
	case LOC_LOCAL_ARG:
	  fputs_filtered ("shuffled arg", outfile);
	  break;
	default:
	  fputs_filtered ("<invalid location>", outfile);
	  break;
	}
      fputs_filtered (", ", outfile);
      fprintf_filtered (outfile, "0x%x\n", SYMBOL_VALUE (p));
      p++;
    }
}

void
maintenance_print_msymbols (args, from_tty)
     char *args;
     int from_tty;
{
  char **argv;
  FILE *outfile;
  struct cleanup *cleanups;
  char *filename = DEV_TTY;
  char *symname = NULL;
  struct objfile *objfile;

  dont_repeat ();

  if (args == NULL)
    {
      error ("print-msymbols takes an output file name and optional symbol file name");
    }
  else if ((argv = buildargv (args)) == NULL)
    {
      nomem (0);
    }
  cleanups = make_cleanup (freeargv, argv);

  if (argv[0] != NULL)
    {
      filename = argv[0];
      /* If a second arg is supplied, it is a source file name to match on */
      if (argv[1] != NULL)
	{
	  symname = argv[1];
	}
    }

  filename = tilde_expand (filename);
  make_cleanup (free, filename);
  
  outfile = fopen (filename, "w");
  if (outfile == 0)
    perror_with_name (filename);
  make_cleanup (fclose, outfile);

  immediate_quit++;
  ALL_OBJFILES (objfile)
    if (symname == NULL || (strcmp (symname, objfile -> name) == 0))
      dump_msymbols (objfile, outfile);
  immediate_quit--;
  fprintf_filtered (outfile, "\n\n");
  do_cleanups (cleanups);
}

void
maintenance_print_objfiles (ignore, from_tty)
     char *ignore;
     int from_tty;
{
  struct objfile *objfile;

  dont_repeat ();

  immediate_quit++;
  ALL_OBJFILES (objfile)
    dump_objfile (objfile);
  immediate_quit--;
}


/* Return the nexting depth of a block within other blocks in its symtab.  */

static int
block_depth (block)
     struct block *block;
{
  register int i = 0;
  while (block = BLOCK_SUPERBLOCK (block)) i++;
  return i;
}

#endif	/* MAINTENANCE_CMDS */


/* Increase the space allocated for LISTP, which is probably
   global_psymbol_list or static_psymbol_list. This space will eventually
   be freed in free_objfile().  */

void
extend_psymbol_list (listp, objfile)
     register struct psymbol_allocation_list *listp;
     struct objfile *objfile;
{
  int new_size;
  if (listp->size == 0)
    {
      new_size = 255;
      listp->list = (struct partial_symbol *)
	xmmalloc (objfile -> md, new_size * sizeof (struct partial_symbol));
    }
  else
    {
      new_size = listp->size * 2;
      listp->list = (struct partial_symbol *)
	xmrealloc (objfile -> md, (char *) listp->list,
		   new_size * sizeof (struct partial_symbol));
    }
  /* Next assumes we only went one over.  Should be good if
     program works correctly */
  listp->next = listp->list + listp->size;
  listp->size = new_size;
}

#ifdef DEBUG

/* The work performed by this function is normally done by the macro
   ADD_PSYMBOL_TO_LIST defined in symfile.h.  When debugging gdb, this
   function makes things easier. */

void
add_psymbol_to_list (name, namelength, namespace, class, listp, psymval)
     char *name;
     int namelength;
     enum namespace namespace;
     enum address_class class;
     struct psymbol_allocation_list *listp;
     unsigned long psymval;
{
  register struct partial_symbol *psym;

  if (listp -> next >= listp -> list + listp -> size)
    extend_psymbol_list (listp, objfile);
  psym = listp -> next++;
  SYMBOL_NAME (psym) = (char *) obstack_alloc (&objfile->psymbol_obstack,
					       namelength + 1);
  memcpy (SYMBOL_NAME (psym), name, namelength);
  SYMBOL_NAME (psym)[namelength] = '\0';
  SYMBOL_NAMESPACE (psym) = namespace;
  SYMBOL_CLASS (psym) = class;
  SYMBOL_VALUE (psym) = psymval;
}

/* The work performed by this function is normally done by the macro
   ADD_PSYMBOL_ADDR_TO_LIST defined in symfile.h.  When debugging gdb, this
   function makes things easier. */

void
add_psymbol_addr_to_list (name, namelength, namespace, class, listp, psymval)
     char *name;
     int namelength;
     enum namespace namespace;
     enum address_class class;
     struct psymbol_allocation_list *listp;
     CORE_ADDR psymval;
{
  register struct partial_symbol *psym;

  if (listp -> next >= listp -> list + listp -> size)
    extend_psymbol_list (listp, objfile);
  psym = listp -> next++;
  SYMBOL_NAME (psym) = (char *) obstack_alloc (&objfile->psymbol_obstack,
					       namelength + 1);
  memcpy (SYMBOL_NAME (psym), name, namelength);
  SYMBOL_NAME (psym)[namelength] = '\0';
  SYMBOL_NAMESPACE (psym) = namespace;
  SYMBOL_CLASS (psym) = class;
  SYMBOL_VALUE_ADDRESS (psym) = psymval;
}

#endif /* DEBUG */