1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
//===-- asan_stack.h --------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// 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 "asan_flags.h"
#include "asan_thread.h"
#include "sanitizer_common/sanitizer_flags.h"
#include "sanitizer_common/sanitizer_stacktrace.h"
namespace __asan {
void PrintStack(StackTrace *stack);
void PrintStack(const uptr *trace, uptr size);
} // 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.
#if SANITIZER_WINDOWS
#define GET_STACK_TRACE_WITH_PC_AND_BP(max_s, pc, bp, fast) \
StackTrace stack; \
stack.Unwind(max_s, pc, bp, 0, 0, fast)
#else
#define GET_STACK_TRACE_WITH_PC_AND_BP(max_s, pc, bp, fast) \
StackTrace stack; \
{ \
AsanThread *t; \
stack.size = 0; \
if (asan_inited && (t = GetCurrentThread()) && !t->isUnwinding()) { \
uptr stack_top = t->stack_top(); \
uptr stack_bottom = t->stack_bottom(); \
ScopedUnwinding unwind_scope(t); \
stack.Unwind(max_s, pc, bp, stack_top, stack_bottom, fast); \
} \
}
#endif // SANITIZER_WINDOWS
// 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) \
GET_STACK_TRACE_WITH_PC_AND_BP(max_size, \
StackTrace::GetCurrentPc(), GET_CURRENT_FRAME(), fast)
#define GET_STACK_TRACE_FATAL(pc, bp) \
GET_STACK_TRACE_WITH_PC_AND_BP(kStackTraceMax, pc, bp, \
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(common_flags()->malloc_context_size, \
common_flags()->fast_unwind_on_malloc)
#define GET_STACK_TRACE_FREE GET_STACK_TRACE_MALLOC
#define PRINT_CURRENT_STACK() \
{ \
GET_STACK_TRACE(kStackTraceMax, \
common_flags()->fast_unwind_on_fatal); \
PrintStack(&stack); \
}
#endif // ASAN_STACK_H
|
