1/*
2 *
3 * honggfuzz - architecture dependent code
4 * -----------------------------------------
5 *
6 * Author: Robert Swiecki <swiecki@google.com>
7 *
8 * Copyright 2010-2015 by Google Inc. All Rights Reserved.
9 *
10 * Licensed under the Apache License, Version 2.0 (the "License"); you may
11 * not use this file except in compliance with the License. You may obtain
12 * a copy of the License at
13 *
14 * http://www.apache.org/licenses/LICENSE-2.0
15 *
16 * Unless required by applicable law or agreed to in writing, software
17 * distributed under the License is distributed on an "AS IS" BASIS,
18 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
19 * implied. See the License for the specific language governing
20 * permissions and limitations under the License.
21 *
22 */
23
24#ifndef _HF_LINUX_UNWIND_H_
25#define _HF_LINUX_UNWIND_H_
26
27#include <linux/limits.h>
28#include <sys/types.h>
29
30/* String buffer size for function names in stack traces produced from libunwind */
31#define _HF_FUNC_NAME_SZ 256  // Should be alright for mangled C++ procs too
32
33#define _HF_MAX_FUNCS 80
34typedef struct {
35    void* pc;
36
37    /* If ASan custom parsing, function not available without symbolication */
38    char func[_HF_FUNC_NAME_SZ];
39
40    /*
41     * If libuwind proc maps is used to retrieve map name
42     * If ASan custom parsing it's retrieved from generated report file
43     */
44    char mapName[PATH_MAX];
45
46    /*
47     * If libunwind + bfd symbolizer, line is actual symbol file line
48     * If libunwind + custom (e.g. Android), line is offset from function symbol
49     * If ASan custom parsing, line is offset from matching map load base address
50     */
51    size_t line;
52} funcs_t;
53
54extern size_t arch_unwindStack(pid_t pid, funcs_t* funcs);
55extern char* arch_btContainsSymbol(
56    size_t symbolsListSz, char** symbolsList, size_t num_frames, funcs_t* funcs);
57
58#endif
59