libsanitizer/asan/asan_stack.cc

   1 //===-- asan_stack.cc -----------------------------------------------------===//
   2 //
   3 // This file is distributed under the University of Illinois Open Source
   4 // License. See LICENSE.TXT for details.
   5 //
   6 //===----------------------------------------------------------------------===//
   7 //
   8 // This file is a part of AddressSanitizer, an address sanity checker.
   9 //
  10 // Code for ASan stack trace.
  11 //===----------------------------------------------------------------------===//
  12 #include "asan_internal.h"
  13 #include "asan_stack.h"
  14 #include "sanitizer_common/sanitizer_atomic.h"
  15
  16 namespace __asan {
  17
  18 static atomic_uint32_t malloc_context_size;
  19
  20 void SetMallocContextSize(u32 size) {
  21   atomic_store(&malloc_context_size, size, memory_order_release);
  22 }
  23
  24 u32 GetMallocContextSize() {
  25   return atomic_load(&malloc_context_size, memory_order_acquire);
  26 }
  27
  28 }  // namespace __asan
  29
  30 // ------------------ Interface -------------- {{{1
  31
  32 extern "C" {
  33 SANITIZER_INTERFACE_ATTRIBUTE
  34 void __sanitizer_print_stack_trace() {
  35   using namespace __asan;
  36   PRINT_CURRENT_STACK();
  37 }
  38 }  // extern "C"