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 <cstdlib> 12 13 #include "config.h" 14 15 #include "demangle_symbol.h" 16 #include "demangle_java_symbol.h" 17 #include "op_regex.h" 18 19 // from libiberty 20 /*@{\name demangle option parameter */ 21 #ifndef DMGL_PARAMS 22 # define DMGL_PARAMS (1 << 0) /**< Include function args */ 23 #endif 24 #ifndef DMGL_ANSI 25 # define DMGL_ANSI (1 << 1) /**< Include const, volatile, etc */ 26 #endif 27 /*@}*/ 28 extern "C" char * cplus_demangle(char const * mangled, int options); 29 30 using namespace std; 31 32 namespace options { 33 extern demangle_type demangle; 34 } 35 36 string const demangle_symbol(string const & name) 37 { 38 if (options::demangle == dmt_none) 39 return name; 40 41 // Do not try to strip leading underscore, as this leads to many 42 // C++ demangling failures. However we strip off a leading '.' 43 // as generated on PPC64 44 string const & tmp = (name[0] == '.' ? name.substr(1) : name); 45 char * unmangled = cplus_demangle(tmp.c_str(), DMGL_PARAMS | DMGL_ANSI); 46 47 if (!unmangled) { 48 string result = demangle_java_symbol(name); 49 if (!result.empty()) 50 return result; 51 return name; 52 } 53 54 string result(unmangled); 55 free(unmangled); 56 57 if (options::demangle == dmt_smart) { 58 static bool init = false; 59 static regular_expression_replace regex; 60 if (init == false) { 61 setup_regex(regex, OP_DATADIR "/stl.pat"); 62 init = true; 63 } 64 // we don't protect against exception here, pattern must be 65 // right and user can easily work-around by using -d 66 regex.execute(result); 67 } 68 69 return result; 70 } 71
