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
|
/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef _LIBBACKTRACE_BACKTRACE_IMPL_H
#define _LIBBACKTRACE_BACKTRACE_IMPL_H
#include <backtrace/Backtrace.h>
#include <backtrace/BacktraceMap.h>
#include <sys/types.h>
#include <ucontext.h>
class BacktraceImpl {
public:
virtual ~BacktraceImpl() { }
virtual bool Unwind(size_t num_ignore_frames, ucontext_t* ucontext) = 0;
// The name returned is not demangled, Backtrace::GetFunctionName()
// takes care of demangling the name.
virtual std::string GetFunctionNameRaw(uintptr_t pc, uintptr_t* offset) = 0;
void SetParent(Backtrace* backtrace) { backtrace_obj_ = backtrace; }
inline pid_t Pid() { return backtrace_obj_->Pid(); }
inline pid_t Tid() { return backtrace_obj_->Tid(); }
inline const backtrace_map_t* FindMap(uintptr_t addr) {
return backtrace_obj_->FindMap(addr);
}
inline std::string GetFunctionName(uintptr_t pc, uintptr_t* offset) {
return backtrace_obj_->GetFunctionName(pc, offset);
}
inline BacktraceMap* GetMap() { return backtrace_obj_->GetMap(); }
protected:
inline std::vector<backtrace_frame_data_t>* GetFrames() { return &backtrace_obj_->frames_; }
Backtrace* backtrace_obj_;
};
class BacktraceCurrent : public Backtrace {
public:
BacktraceCurrent(BacktraceImpl* impl, BacktraceMap* map);
virtual ~BacktraceCurrent();
bool ReadWord(uintptr_t ptr, word_t* out_value);
};
class BacktracePtrace : public Backtrace {
public:
BacktracePtrace(BacktraceImpl* impl, pid_t pid, pid_t tid, BacktraceMap* map);
virtual ~BacktracePtrace();
bool ReadWord(uintptr_t ptr, word_t* out_value);
};
Backtrace* CreateCurrentObj(BacktraceMap* map);
Backtrace* CreatePtraceObj(pid_t pid, pid_t tid, BacktraceMap* map);
Backtrace* CreateThreadObj(pid_t tid, BacktraceMap* map);
#endif // _LIBBACKTRACE_BACKTRACE_IMPL_H
|
