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Diffstat (limited to 'libsanitizer/asan/asan_stack.h')
| -rw-r--r-- | libsanitizer/asan/asan_stack.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/libsanitizer/asan/asan_stack.h b/libsanitizer/asan/asan_stack.h new file mode 100644 index 00000000000..da622ed8eec --- /dev/null +++ b/libsanitizer/asan/asan_stack.h @@ -0,0 +1,52 @@ +//===-- asan_stack.h --------------------------------------------*- C++ -*-===// +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file is a part of AddressSanitizer, an address sanity checker. +// +// ASan-private header for asan_stack.cc. +//===----------------------------------------------------------------------===// +#ifndef ASAN_STACK_H +#define ASAN_STACK_H + +#include "sanitizer_common/sanitizer_stacktrace.h" + +namespace __asan { + +void GetStackTrace(StackTrace *stack, uptr max_s, uptr pc, uptr bp); +void PrintStack(StackTrace *stack); + +} // namespace __asan + +// Get the stack trace with the given pc and bp. +// The pc will be in the position 0 of the resulting stack trace. +// The bp may refer to the current frame or to the caller's frame. +// fast_unwind is currently unused. +#define GET_STACK_TRACE_WITH_PC_AND_BP(max_s, pc, bp) \ + StackTrace stack; \ + GetStackTrace(&stack, max_s, pc, bp) + +// NOTE: A Rule of thumb is to retrieve stack trace in the interceptors +// as early as possible (in functions exposed to the user), as we generally +// don't want stack trace to contain functions from ASan internals. + +#define GET_STACK_TRACE_HERE(max_size) \ + GET_STACK_TRACE_WITH_PC_AND_BP(max_size, \ + StackTrace::GetCurrentPc(), GET_CURRENT_FRAME()) + +#define GET_STACK_TRACE_HERE_FOR_MALLOC \ + GET_STACK_TRACE_HERE(flags()->malloc_context_size) + +#define GET_STACK_TRACE_HERE_FOR_FREE(ptr) \ + GET_STACK_TRACE_HERE(flags()->malloc_context_size) + +#define PRINT_CURRENT_STACK() \ + { \ + GET_STACK_TRACE_HERE(kStackTraceMax); \ + PrintStack(&stack); \ + } + +#endif // ASAN_STACK_H |