asan_stack.cc revision 274201
1238106Sdes//===-- asan_stack.cc -----------------------------------------------------===// 2238106Sdes// 3238106Sdes// The LLVM Compiler Infrastructure 4238106Sdes// 5238106Sdes// This file is distributed under the University of Illinois Open Source 6238106Sdes// License. See LICENSE.TXT for details. 7238106Sdes// 8238106Sdes//===----------------------------------------------------------------------===// 9238106Sdes// 10238106Sdes// This file is a part of AddressSanitizer, an address sanity checker. 11238106Sdes// 12238106Sdes// Code for ASan stack trace. 13238106Sdes//===----------------------------------------------------------------------===// 14238106Sdes#include "asan_internal.h" 15238106Sdes#include "asan_flags.h" 16238106Sdes#include "asan_stack.h" 17238106Sdes#include "sanitizer_common/sanitizer_flags.h" 18238106Sdes 19238106Sdesnamespace __asan { 20238106Sdes 21238106Sdesstatic bool MaybeCallAsanSymbolize(const void *pc, char *out_buffer, 22238106Sdes int out_size) { 23238106Sdes return (&__asan_symbolize) ? __asan_symbolize(pc, out_buffer, out_size) 24238106Sdes : false; 25238106Sdes} 26238106Sdes 27238106Sdesvoid PrintStack(const uptr *trace, uptr size) { 28238106Sdes StackTrace::PrintStack(trace, size, MaybeCallAsanSymbolize); 29238106Sdes} 30238106Sdes 31238106Sdesvoid PrintStack(StackTrace *stack) { 32238106Sdes PrintStack(stack->trace, stack->size); 33238106Sdes} 34238106Sdes 35238106Sdes} // namespace __asan 36238106Sdes 37238106Sdes// ------------------ Interface -------------- {{{1 38238106Sdes 39238106Sdes// Provide default implementation of __asan_symbolize that does nothing 40238106Sdes// and may be overriden by user if he wants to use his own symbolization. 41238106Sdes// ASan on Windows has its own implementation of this. 42238106Sdes#if !SANITIZER_WINDOWS && !SANITIZER_SUPPORTS_WEAK_HOOKS 43238106SdesSANITIZER_INTERFACE_ATTRIBUTE SANITIZER_WEAK_ATTRIBUTE NOINLINE 44238106Sdesbool __asan_symbolize(const void *pc, char *out_buffer, int out_size) { 45238106Sdes return false; 46238106Sdes} 47238106Sdes#endif 48238106Sdes