diff options
author | Zack Weinberg <zackw@panix.com> | 2002-09-17 07:09:47 +0000 |
---|---|---|
committer | Zack Weinberg <zackw@panix.com> | 2002-09-17 07:09:47 +0000 |
commit | bb279dc026b594e88ac81c8f185465fdbe9351da (patch) | |
tree | 7e1a7a0bd4ae00646ca806df2c73b74488f49288 /binutils/cxxfilt.c | |
parent | d9025a1885f5d21a2589fd3fa0156263e01a301f (diff) | |
download | binutils-gdb-bb279dc026b594e88ac81c8f185465fdbe9351da.tar.gz |
binutils:
* Makefile.am (CFILES): Add cxxfilt.c.
(cxxfilt_SOURCES): Now just cxxfilt.c $(BULIBS).
(cxxfilt_LDADD): Delete.
Remove all references to underscore.c.
Regen dependencies.
* configure.in: Define TARGET_PREPENDS_UNDERSCORE in
config.h from $UNDERSCORE, rather than AC_SUBSTing it.
* binutils/cxxfilt.c: Moved here from gcc/cp, minor
adjustments to fit into binutils framework.
* configure, config.in, Makefile.in, doc/Makefile.in: Regenerate.
gcc/cp:
* Make-lang.in: Remove all references to the demangler.
* cxxfilt.c: Moved to binutils.
Diffstat (limited to 'binutils/cxxfilt.c')
-rw-r--r-- | binutils/cxxfilt.c | 294 |
1 files changed, 294 insertions, 0 deletions
diff --git a/binutils/cxxfilt.c b/binutils/cxxfilt.c new file mode 100644 index 00000000000..e4289c8ea1b --- /dev/null +++ b/binutils/cxxfilt.c @@ -0,0 +1,294 @@ +/* Demangler for GNU C++ - main program + Copyright 1989, 1991, 1994, 1995, 1996, 1997, 1998, 1999, + 2000, 2001, 2002 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 PARAMS ((char *)); +static void usage PARAMS ((FILE *, int)) ATTRIBUTE_NORETURN; +static void print_demangler_list PARAMS ((FILE *)); + +static void +demangle_it (mangled_name) + 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 (stream) + 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 (stream, status) + FILE *stream; + int status; +{ + fprintf (stream, "\ +Usage: %s [-_] [-n] [--strip-underscores] [--no-strip-underscores] \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-strip-underscores", no_argument, 0, 'n'}, + {"version", no_argument, 0, 'v'}, + {0, no_argument, 0, 0} +}; + +static const char * +standard_symbol_characters PARAMS ((void)); + +static const char * +hp_symbol_characters PARAMS ((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 () +{ + 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 () +{ + return "_$.<>#,*&[]:(){}"; +} + +extern int main PARAMS ((int, char **)); + +int +main (argc, argv) + int argc; + char **argv; +{ + char *result; + int c; + const char *valid_symbols; + enum demangling_styles style = auto_demangling; + + program_name = argv[0]; + xmalloc_set_program_name (program_name); + + strip_underscore = TARGET_PREPENDS_UNDERSCORE; + + while ((c = getopt_long (argc, argv, "_ns:", long_options, (int *) 0)) != EOF) + { + switch (c) + { + case '?': + usage (stderr, 1); + break; + case 'h': + usage (stdout, 0); + case 'n': + strip_underscore = 0; + break; + case 'v': + print_version ("c++filt"); + return (0); + case '_': + strip_underscore = 1; + break; + case 's': + { + style = cplus_demangle_name_to_style (optarg); + if (style == unknown_demangling) + { + fprintf (stderr, "%s: unknown demangling style `%s'\n", + program_name, optarg); + return (1); + } + else + cplus_demangle_set_style (style); + } + break; + } + } + + if (optind < argc) + { + for ( ; optind < argc; optind++) + { + demangle_it (argv[optind]); + } + } + else + { + switch (current_demangling_style) + { + case gnu_demangling: + case lucid_demangling: + case arm_demangling: + case java_demangling: + case edg_demangling: + case gnat_demangling: + case gnu_v3_demangling: + case auto_demangling: + valid_symbols = standard_symbol_characters (); + break; + case hp_demangling: + valid_symbols = hp_symbol_characters (); + break; + default: + /* Folks should explicitly indicate the appropriate alphabet for + each demangling. Providing a default would allow the + question to go unconsidered. */ + fatal ("Internal error: no symbol alphabet for current style"); + } + + for (;;) + { + int i = 0; + c = getchar (); + /* Try to read a label. */ + while (c != EOF && (ISALNUM (c) || strchr (valid_symbols, c))) + { + if (i >= MBUF_SIZE-1) + break; + mbuffer[i++] = c; + c = getchar (); + } + if (i > 0) + { + int skip_first = 0; + + mbuffer[i] = 0; + if (mbuffer[0] == '.' || mbuffer[0] == '$') + ++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); +} |