1 //===-- sanitizer_symbolizer_itanium.cc -----------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file is shared between the sanitizer run-time libraries. 11 // Itanium C++ ABI-specific implementation of symbolizer parts. 12 //===----------------------------------------------------------------------===// 13 14 #include "sanitizer_platform.h" 15 #if SANITIZER_MAC || SANITIZER_LINUX 16 17 #include "sanitizer_symbolizer.h" 18 19 #include <stdlib.h> 20 21 // C++ demangling function, as required by Itanium C++ ABI. This is weak, 22 // because we do not require a C++ ABI library to be linked to a program 23 // using sanitizers; if it's not present, we'll just use the mangled name. 24 namespace __cxxabiv1 { 25 extern "C" char *__cxa_demangle(const char *mangled, char *buffer, 26 size_t *length, int *status) 27 SANITIZER_WEAK_ATTRIBUTE; 28 } 29 30 const char *__sanitizer::DemangleCXXABI(const char *name) { 31 // FIXME: __cxa_demangle aggressively insists on allocating memory. 32 // There's not much we can do about that, short of providing our 33 // own demangler (libc++abi's implementation could be adapted so that 34 // it does not allocate). For now, we just call it anyway, and we leak 35 // the returned value. 36 if (__cxxabiv1::__cxa_demangle) 37 if (const char *demangled_name = 38 __cxxabiv1::__cxa_demangle(name, 0, 0, 0)) 39 return demangled_name; 40 41 return name; 42 } 43 44 #endif // SANITIZER_MAC || SANITIZER_LINUX 45
