72 lines
2.7 KiB
C
72 lines
2.7 KiB
C
|
//===-- asan_stack.h --------------------------------------------*- C++ -*-===//
|
||
|
|
//
|
||
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
||
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
||
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
||
|
|
//
|
||
|
|
//===----------------------------------------------------------------------===//
|
||
|
|
//
|
||
|
|
// This file is a part of AddressSanitizer, an address sanity checker.
|
||
|
|
//
|
||
|
|
// ASan-private header for asan_stack.cpp.
|
||
|
|
//===----------------------------------------------------------------------===//
|
||
|
|
|
||
|
|
#ifndef ASAN_STACK_H
|
||
|
|
#define ASAN_STACK_H
|
||
|
|
|
||
|
|
#include "asan_flags.h"
|
||
|
|
#include "asan_thread.h"
|
||
|
|
#include "sanitizer_common/sanitizer_flags.h"
|
||
|
|
#include "sanitizer_common/sanitizer_stacktrace.h"
|
||
|
|
|
||
|
|
namespace __asan {
|
||
|
|
|
||
|
|
static const u32 kDefaultMallocContextSize = 30;
|
||
|
|
|
||
|
|
void SetMallocContextSize(u32 size);
|
||
|
|
u32 GetMallocContextSize();
|
||
|
|
|
||
|
|
} // namespace __asan
|
||
|
|
|
||
|
|
// 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(max_size, fast) \
|
||
|
|
BufferedStackTrace stack; \
|
||
|
|
if (max_size <= 2) { \
|
||
|
|
stack.size = max_size; \
|
||
|
|
if (max_size > 0) { \
|
||
|
|
stack.top_frame_bp = GET_CURRENT_FRAME(); \
|
||
|
|
stack.trace_buffer[0] = StackTrace::GetCurrentPc(); \
|
||
|
|
if (max_size > 1) stack.trace_buffer[1] = GET_CALLER_PC(); \
|
||
|
|
} \
|
||
|
|
} else { \
|
||
|
|
stack.Unwind(StackTrace::GetCurrentPc(), \
|
||
|
|
GET_CURRENT_FRAME(), nullptr, fast, max_size); \
|
||
|
|
}
|
||
|
|
|
||
|
|
#define GET_STACK_TRACE_FATAL(pc, bp) \
|
||
|
|
BufferedStackTrace stack; \
|
||
|
|
stack.Unwind(pc, bp, nullptr, \
|
||
|
|
common_flags()->fast_unwind_on_fatal)
|
||
|
|
|
||
|
|
#define GET_STACK_TRACE_FATAL_HERE \
|
||
|
|
GET_STACK_TRACE(kStackTraceMax, common_flags()->fast_unwind_on_fatal)
|
||
|
|
|
||
|
|
#define GET_STACK_TRACE_THREAD \
|
||
|
|
GET_STACK_TRACE(kStackTraceMax, true)
|
||
|
|
|
||
|
|
#define GET_STACK_TRACE_MALLOC \
|
||
|
|
GET_STACK_TRACE(GetMallocContextSize(), common_flags()->fast_unwind_on_malloc)
|
||
|
|
|
||
|
|
#define GET_STACK_TRACE_FREE GET_STACK_TRACE_MALLOC
|
||
|
|
|
||
|
|
#define PRINT_CURRENT_STACK() \
|
||
|
|
{ \
|
||
|
|
GET_STACK_TRACE_FATAL_HERE; \
|
||
|
|
stack.Print(); \
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif // ASAN_STACK_H
|