Upstream | cc2ee17 | 1970-01-12 13:46:40 +0000 | [diff] [blame^] | 1 | /** |
| 2 | * @file demangle_symbol.cpp |
| 3 | * Demangle a C++ symbol |
| 4 | * |
| 5 | * @remark Copyright 2002 OProfile authors |
| 6 | * @remark Read the file COPYING |
| 7 | * |
| 8 | * @author John Levon |
| 9 | */ |
| 10 | |
| 11 | #include "config.h" |
| 12 | |
| 13 | #include "demangle_symbol.h" |
| 14 | #include "op_regex.h" |
| 15 | |
| 16 | // from libiberty |
| 17 | /*@{\name demangle option parameter */ |
| 18 | #ifndef DMGL_PARAMS |
| 19 | # define DMGL_PARAMS (1 << 0) /**< Include function args */ |
| 20 | #endif |
| 21 | #ifndef DMGL_ANSI |
| 22 | # define DMGL_ANSI (1 << 1) /**< Include const, volatile, etc */ |
| 23 | #endif |
| 24 | /*@}*/ |
| 25 | extern "C" char * cplus_demangle(char const * mangled, int options); |
| 26 | |
| 27 | using namespace std; |
| 28 | |
| 29 | namespace options { |
| 30 | extern demangle_type demangle; |
| 31 | } |
| 32 | |
| 33 | string const demangle_symbol(string const & name) |
| 34 | { |
| 35 | if (options::demangle == dmt_none) |
| 36 | return name; |
| 37 | |
| 38 | // Do not try to strip leading underscore, this leads to many |
| 39 | // C++ demangling failures. |
| 40 | char * unmangled = cplus_demangle(name.c_str(), DMGL_PARAMS | DMGL_ANSI); |
| 41 | |
| 42 | if (!unmangled) |
| 43 | return name; |
| 44 | |
| 45 | string result(unmangled); |
| 46 | free(unmangled); |
| 47 | |
| 48 | if (options::demangle == dmt_smart) { |
| 49 | static bool init = false; |
| 50 | static regular_expression_replace regex; |
| 51 | if (init == false) { |
| 52 | setup_regex(regex, OP_DATADIR "/stl.pat"); |
| 53 | init = true; |
| 54 | } |
| 55 | // we don't protect against exception here, pattern must be |
| 56 | // right and user can easily work-around by using -d |
| 57 | regex.execute(result); |
| 58 | } |
| 59 | |
| 60 | return result; |
| 61 | } |