1 //===-- asan_stack.h --------------------------------------------*- C++ -*-===// 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 a part of AddressSanitizer, an address sanity checker. 11 // 12 // ASan-private header for asan_stack.cc. 13 //===----------------------------------------------------------------------===// 14 #ifndef ASAN_STACK_H 15 #define ASAN_STACK_H 16 17 #include "sanitizer_common/sanitizer_stacktrace.h" 18 19 namespace __asan { 20 21 void GetStackTrace(StackTrace *stack, uptr max_s, uptr pc, uptr bp); 22 void PrintStack(StackTrace *stack); 23 24 } // namespace __asan 25 26 // Get the stack trace with the given pc and bp. 27 // The pc will be in the position 0 of the resulting stack trace. 28 // The bp may refer to the current frame or to the caller's frame. 29 // fast_unwind is currently unused. 30 #define GET_STACK_TRACE_WITH_PC_AND_BP(max_s, pc, bp) \ 31 StackTrace stack; \ 32 GetStackTrace(&stack, max_s, pc, bp) 33 34 // NOTE: A Rule of thumb is to retrieve stack trace in the interceptors 35 // as early as possible (in functions exposed to the user), as we generally 36 // don't want stack trace to contain functions from ASan internals. 37 38 #define GET_STACK_TRACE_HERE(max_size) \ 39 GET_STACK_TRACE_WITH_PC_AND_BP(max_size, \ 40 StackTrace::GetCurrentPc(), GET_CURRENT_FRAME()) 41 42 #define GET_STACK_TRACE_HERE_FOR_MALLOC \ 43 GET_STACK_TRACE_HERE(flags()->malloc_context_size) 44 45 #define GET_STACK_TRACE_HERE_FOR_FREE(ptr) \ 46 GET_STACK_TRACE_HERE(flags()->malloc_context_size) 47 48 #define PRINT_CURRENT_STACK() \ 49 { \ 50 GET_STACK_TRACE_HERE(kStackTraceMax); \ 51 PrintStack(&stack); \ 52 } 53 54 #endif // ASAN_STACK_H 55
