| /* Demangler for GNU C++ - main program |
| Copyright 1989, 1991, 1994, 1995, 1996, 1997, 1998, 1999, |
| 2000, 2001, 2002, 2003 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. |
| |
| 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. |
| |
| 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, 59 Temple Place - Suite 330, Boston, MA |
| 02111-1307, USA. */ |
| |
| #include "config.h" |
| #include "bfd.h" |
| #include "bucomm.h" |
| #include "libiberty.h" |
| #include "demangle.h" |
| #include "getopt.h" |
| #include "safe-ctype.h" |
| |
| static int flags = DMGL_PARAMS | DMGL_ANSI | DMGL_VERBOSE; |
| |
| static void demangle_it (char *); |
| static void usage (FILE *, int) ATTRIBUTE_NORETURN; |
| static void print_demangler_list (FILE *); |
| |
| static void |
| demangle_it (char *mangled_name) |
| { |
| char *result; |
| |
| /* 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); |
| } |
| else |
| { |
| printf ("%s\n", result); |
| free (result); |
| } |
| } |
| |
| static void |
| print_demangler_list (FILE *stream) |
| { |
| const struct demangler_engine *demangler; |
| |
| fprintf (stream, "{%s", libiberty_demanglers->demangling_style_name); |
| |
| for (demangler = libiberty_demanglers + 1; |
| demangler->demangling_style != unknown_demangling; |
| ++demangler) |
| fprintf (stream, ",%s", demangler->demangling_style_name); |
| |
| fprintf (stream, "}"); |
| } |
| |
| static void |
| usage (FILE *stream, int status) |
| { |
| fprintf (stream, "\ |
| Usage: %s [-_] [-n] [--strip-underscores] [--no-strip-underscores]\n\ |
| [-p] [--no-params]\n", |
| program_name); |
| |
| fprintf (stream, "\ |
| [-s "); |
| print_demangler_list (stream); |
| fprintf (stream, "]\n"); |
| |
| fprintf (stream, "\ |
| [--format "); |
| print_demangler_list (stream); |
| fprintf (stream, "]\n"); |
| |
| fprintf (stream, "\ |
| [--help] [--version] [arg...]\n"); |
| exit (status); |
| } |
| |
| #define MBUF_SIZE 32767 |
| char mbuffer[MBUF_SIZE]; |
| |
| 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. */ |
| |
| static const char * |
| standard_symbol_characters (void) |
| { |
| return "_$."; |
| } |
| |
| |
| /* Return the string of non-alnum characters that may occur |
| as a valid symbol name component in an HP object file. |
| |
| Note that, since HP's compiler generates object code straight from |
| C++ source, without going through an assembler, its mangled |
| identifiers can use all sorts of characters that no assembler would |
| tolerate, so the alphabet this function creates is a little odd. |
| Here are some sample mangled identifiers offered by HP: |
| |
| typeid*__XT24AddressIndExpClassMember_ |
| [Vftptr]key:__dt__32OrdinaryCompareIndExpClassMemberFv |
| __ct__Q2_9Elf64_Dyn18{unnamed.union.#1}Fv |
| |
| This still seems really weird to me, since nowhere else in this |
| file is there anything to recognize curly brackets, parens, etc. |
| I've talked with Srikanth <srikanth@cup.hp.com>, and he assures me |
| this is right, but I still strongly suspect that there's a |
| misunderstanding here. |
| |
| If we decide it's better for c++filt to use HP's assembler syntax |
| to scrape identifiers out of its input, here's the definition of |
| the symbol name syntax from the HP assembler manual: |
| |
| Symbols are composed of uppercase and lowercase letters, decimal |
| digits, dollar symbol, period (.), ampersand (&), pound sign(#) and |
| underscore (_). A symbol can begin with a letter, digit underscore or |
| dollar sign. If a symbol begins with a digit, it must contain a |
| non-digit character. |
| |
| So have fun. */ |
| static const char * |
| hp_symbol_characters (void) |
| { |
| return "_$.<>#,*&[]:(){}"; |
| } |
| |
| 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; |
| |
| program_name = argv[0]; |
| xmalloc_set_program_name (program_name); |
| |
| strip_underscore = TARGET_PREPENDS_UNDERSCORE; |
| |
| while ((c = getopt_long (argc, argv, "_nps:", long_options, (int *) 0)) != EOF) |
| { |
| switch (c) |
| { |
| case '?': |
| usage (stderr, 1); |
| break; |
| case 'h': |
| usage (stdout, 0); |
| case 'n': |
| strip_underscore = 0; |
| break; |
| case 'p': |
| flags &= ~ DMGL_PARAMS; |
| break; |
| case 'v': |
| print_version ("c++filt"); |
| 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); |
| } |
| break; |
| } |
| } |
| |
| if (optind < argc) |
| { |
| for ( ; optind < argc; optind++) |
| { |
| demangle_it (argv[optind]); |
| } |
| } |
| else |
| { |
| 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 (;;) |
| { |
| int i = 0; |
| c = getchar (); |
| /* Try to read a label. */ |
| while (c != EOF && (ISALNUM (c) || strchr (valid_symbols, c))) |
| { |
| if (i >= MBUF_SIZE-1) |
| break; |
| mbuffer[i++] = c; |
| c = getchar (); |
| } |
| if (i > 0) |
| { |
| int 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); |
| fflush (stdout); |
| } |
| } |
| |
| return (0); |
| } |