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
|
//===--- rtsan_stack.cpp - Realtime Sanitizer -------------------*- 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
//
//===----------------------------------------------------------------------===//
//
//===----------------------------------------------------------------------===//
#include "rtsan_stack.h"
#include <sanitizer_common/sanitizer_flags.h>
#include <sanitizer_common/sanitizer_stacktrace.h>
using namespace __sanitizer;
using namespace __rtsan;
// We must define our own implementation of this method for our runtime.
// This one is just copied from UBSan.
namespace __sanitizer {
void BufferedStackTrace::UnwindImpl(uptr pc, uptr bp, void *context,
bool request_fast, u32 max_depth) {
uptr top = 0;
uptr bottom = 0;
GetThreadStackTopAndBottom(false, &top, &bottom);
bool fast = StackTrace::WillUseFastUnwind(request_fast);
Unwind(max_depth, pc, bp, context, top, bottom, fast);
}
} // namespace __sanitizer
static void SetGlobalStackTraceFormat() {
SetCommonFlagsDefaults();
CommonFlags cf;
cf.CopyFrom(*common_flags());
cf.stack_trace_format = "DEFAULT";
cf.external_symbolizer_path = GetEnv("RTSAN_SYMBOLIZER_PATH");
OverrideCommonFlags(cf);
}
void __rtsan::PrintStackTrace() {
BufferedStackTrace stack{};
GET_CURRENT_PC_BP;
stack.Unwind(pc, bp, nullptr, common_flags()->fast_unwind_on_fatal);
SetGlobalStackTraceFormat();
stack.Print();
}
|
