* cxxfilt.c: Treat mangled names specified on the command line in the same way

  as mangled names read from stdin.
  Add -i switch to disable the display of implementation details.
  Add -t switch to disable the demangling of types.
* NEWS: Mention the new switches.
* doc/binutils.texi (cxxfilt): Document the -i and -t switches.

1 files changed, 116 insertions, 134 deletions

diff --git a/binutils/cxxfilt.c b/binutils/cxxfilt.c
index a0e0a07594..bc692712dd 100644
--- a/binutils/cxxfilt.c
+++ b/binutils/cxxfilt.c
@@ -1,26 +1,26 @@
 /* Demangler for GNU C++ - main program
    Copyright 1989, 1991, 1994, 1995, 1996, 1997, 1998, 1999,
-   2000, 2001, 2002, 2003 Free Software Foundation, Inc.
+   2000, 2001, 2002, 2003, 2005 Free Software Foundation, Inc.
    Written by James Clark (jjc@jclark.uucp)
    Rewritten by Fred Fish (fnf@cygnus.com) for ARM and Lucid demangling
    Modified by Satish Pai (pai@apollo.hp.com) for HP demangling
 
-This file is part of GCC.
+   This file is part of GCC.
 
-GCC 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, or (at your option) any later
-version.
+   GCC 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, or (at your option) any later
+   version.
 
-GCC 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.
+   GCC 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 GCC; see the file COPYING.  If not, write to the Free
-Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
-02110-1301, USA.  */
+   You should have received a copy of the GNU General Public License
+   along with GCC; see the file COPYING.  If not, write to the Free
+   Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
+   02110-1301, USA.  */
 
 #include "config.h"
 #include "bfd.h"
@@ -30,26 +30,42 @@ Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
 #include "getopt.h"
 #include "safe-ctype.h"
 
-static int flags = DMGL_PARAMS | DMGL_ANSI | DMGL_VERBOSE;
+static int flags = DMGL_PARAMS | DMGL_ANSI | DMGL_VERBOSE | DMGL_TYPES;
+static int strip_underscore = TARGET_PREPENDS_UNDERSCORE;
 
-static void demangle_it (char *);
-static void usage (FILE *, int) ATTRIBUTE_NORETURN;
-static void print_demangler_list (FILE *);
+static const struct option long_options[] =
+{
+  {"strip-underscore", no_argument, NULL, '_'},
+  {"format", required_argument, NULL, 's'},
+  {"help", no_argument, NULL, 'h'},
+  {"no-params", no_argument, NULL, 'p'},
+  {"no-strip-underscores", no_argument, NULL, 'n'},
+  {"no-types", no_argument, NULL, 't'},
+  {"no-verbose", no_argument, NULL, 'i'},
+  {"version", no_argument, NULL, 'v'},
+  {NULL, no_argument, NULL, 0}
+};
 
 static void
 demangle_it (char *mangled_name)
 {
   char *result;
+  unsigned int skip_first = 0;
+
+  if (mangled_name[0] == '.' || mangled_name[0] == '$')
+    ++skip_first;
+  if (strip_underscore && mangled_name[skip_first] == '_')
+    ++skip_first;
+
+  result = cplus_demangle (mangled_name + skip_first, flags);
 
-  /* For command line args, also try to demangle type encodings.  */
-  result = cplus_demangle (mangled_name, flags | DMGL_TYPES);
   if (result == NULL)
-    {
-      printf ("%s\n", mangled_name);
-    }
+    puts (mangled_name);
   else
     {
-      printf ("%s\n", result);
+      if (mangled_name[0] == '.')
+	putchar ('.');
+      puts (result);
       free (result);
     }
 }
@@ -73,43 +89,32 @@ static void
 usage (FILE *stream, int status)
 {
   fprintf (stream, "\
-Usage: %s [-_] [-n] [--strip-underscores] [--no-strip-underscores]\n\
-       [-p] [--no-params]\n",
-	   program_name);
-
+Usage: %s [options] [mangled names]\n", program_name);
   fprintf (stream, "\
-       [-s ");
-  print_demangler_list (stream);
-  fprintf (stream, "]\n");
-
+Options are:\n\
+  [-_|--strip-underscore]     Ignore first leading underscore%s\n",
+	   TARGET_PREPENDS_UNDERSCORE ? " (default)" : "");
+  fprintf (stream, "\
+  [-n|--no-strip-underscore]  Do not ignore a leading underscore%s\n",
+	   TARGET_PREPENDS_UNDERSCORE ? "" : " (default)");
   fprintf (stream, "\
-       [--format ");
+  [-p|--no-params]            Do not display function arguments\n\
+  [-t|--no-types]             Do not try to demangle type encodings\n\
+  [-i|--no-verbose]           Do not show implementation details (if any)\n\
+  [-s|--format ");
   print_demangler_list (stream);
   fprintf (stream, "]\n");
 
   fprintf (stream, "\
-       [@file] [--help] [--version] [arg...]\n");
+  [@<file>]                   Read extra options from <file>\n\
+  [-h|--help]                 Display this information\n\
+  [-v|--version]              Show the version information\n\
+Demangled names are displayed to stdout.\n\
+If a name cannot be demangled it is just echoed to stdout.\n\
+If no names are provided on the command line, stdin is read.\n");
   exit (status);
 }
 
-static char mbuffer[32767];
-
-int strip_underscore = 0;
-
-static const struct option long_options[] = {
-  {"strip-underscores", no_argument, 0, '_'},
-  {"format", required_argument, 0, 's'},
-  {"help", no_argument, 0, 'h'},
-  {"no-params", no_argument, 0, 'p'},
-  {"no-strip-underscores", no_argument, 0, 'n'},
-  {"version", no_argument, 0, 'v'},
-  {0, no_argument, 0, 0}
-};
-
-static const char *standard_symbol_characters (void);
-
-static const char *hp_symbol_characters (void);
-
 /* Return the string of non-alnum characters that may occur
    as a valid symbol component, in the standard assembler symbol
    syntax.  */
@@ -120,7 +125,6 @@ standard_symbol_characters (void)
   return "_$.";
 }
 
-
 /* Return the string of non-alnum characters that may occur
    as a valid symbol name component in an HP object file.
 
@@ -162,7 +166,6 @@ extern int main (int, char **);
 int
 main (int argc, char **argv)
 {
-  char *result;
   int c;
   const char *valid_symbols;
   enum demangling_styles style = auto_demangling;
@@ -172,9 +175,7 @@ main (int argc, char **argv)
 
   expandargv (&argc, &argv);
 
-  strip_underscore = TARGET_PREPENDS_UNDERSCORE;
-
-  while ((c = getopt_long (argc, argv, "_nps:", long_options, (int *) 0)) != EOF)
+  while ((c = getopt_long (argc, argv, "_hinps:tv", long_options, (int *) 0)) != EOF)
     {
       switch (c)
 	{
@@ -189,24 +190,27 @@ main (int argc, char **argv)
 	case 'p':
 	  flags &= ~ DMGL_PARAMS;
 	  break;
+	case 't':
+	  flags &= ~ DMGL_TYPES;
+	  break;
+	case 'i':
+	  flags &= ~ DMGL_VERBOSE;
+	  break;
 	case 'v':
 	  print_version ("c++filt");
-	  return (0);
+	  return 0;
 	case '_':
 	  strip_underscore = 1;
 	  break;
 	case 's':
-	  {
-	    style = cplus_demangle_name_to_style (optarg);
-	    if (style == unknown_demangling)
-	      {
-		fprintf (stderr, "%s: unknown demangling style `%s'\n",
-			 program_name, optarg);
-		return (1);
-	      }
-	    else
-	      cplus_demangle_set_style (style);
-	  }
+	  style = cplus_demangle_name_to_style (optarg);
+	  if (style == unknown_demangling)
+	    {
+	      fprintf (stderr, "%s: unknown demangling style `%s'\n",
+		       program_name, optarg);
+	      return 1;
+	    }
+	  cplus_demangle_set_style (style);
 	  break;
 	}
     }
@@ -214,79 +218,57 @@ main (int argc, char **argv)
   if (optind < argc)
     {
       for ( ; optind < argc; optind++)
-	{
-	  demangle_it (argv[optind]);
-	}
+	demangle_it (argv[optind]);
+
+      return 0;
     }
-  else
+
+  switch (current_demangling_style)
     {
-      switch (current_demangling_style)
+    case gnu_demangling:
+    case lucid_demangling:
+    case arm_demangling:
+    case java_demangling:
+    case edg_demangling:
+    case gnat_demangling:
+    case gnu_v3_demangling:
+    case auto_demangling:
+      valid_symbols = standard_symbol_characters ();
+      break;
+    case hp_demangling:
+      valid_symbols = hp_symbol_characters ();
+      break;
+    default:
+      /* Folks should explicitly indicate the appropriate alphabet for
+	 each demangling.  Providing a default would allow the
+	 question to go unconsidered.  */
+      fatal ("Internal error: no symbol alphabet for current style");
+    }
+
+  for (;;)
+    {
+      static char mbuffer[32767];
+      unsigned i = 0;
+
+      c = getchar ();
+      /* Try to read a mangled name.  */
+      while (c != EOF && (ISALNUM (c) || strchr (valid_symbols, c)))
 	{
-	case gnu_demangling:
-	case lucid_demangling:
-	case arm_demangling:
-	case java_demangling:
-	case edg_demangling:
-	case gnat_demangling:
-	case gnu_v3_demangling:
-	case auto_demangling:
-	  valid_symbols = standard_symbol_characters ();
-	  break;
-	case hp_demangling:
-	  valid_symbols = hp_symbol_characters ();
-	  break;
-	default:
-	  /* Folks should explicitly indicate the appropriate alphabet for
-	     each demangling.  Providing a default would allow the
-	     question to go unconsidered.  */
-	  fatal ("Internal error: no symbol alphabet for current style");
+	  if (i >= sizeof (mbuffer) - 1)
+	    break;
+	  mbuffer[i++] = c;
+	  c = getchar ();
 	}
 
-      for (;;)
+      if (i > 0)
 	{
-	  unsigned i = 0;
-	  c = getchar ();
-	  /* Try to read a label.  */
-	  while (c != EOF && (ISALNUM (c) || strchr (valid_symbols, c)))
-	    {
-	      if (i >= sizeof (mbuffer) - 1)
-		break;
-	      mbuffer[i++] = c;
-	      c = getchar ();
-	    }
-	  if (i > 0)
-	    {
-	      unsigned skip_first = 0;
-
-	      mbuffer[i] = 0;
-	      if (mbuffer[0] == '.' || mbuffer[0] == '$')
-		++skip_first;
-	      if (strip_underscore && mbuffer[skip_first] == '_')
-		++skip_first;
-
-	      if (skip_first > i)
-		skip_first = i;
-
-	      flags |= (int) style;
-	      result = cplus_demangle (mbuffer + skip_first, flags);
-	      if (result)
-		{
-		  if (mbuffer[0] == '.')
-		    putc ('.', stdout);
-		  fputs (result, stdout);
-		  free (result);
-		}
-	      else
-		fputs (mbuffer, stdout);
-
-	      fflush (stdout);
-	    }
-	  if (c == EOF)
-	    break;
-	  putchar (c);
+	  mbuffer[i] = 0;
+	  demangle_it (mbuffer);
 	  fflush (stdout);
 	}
+      if (c == EOF)
+	break;
     }
 
-  return (0);
+  return 0;
 }