1 /*
2 * Copyright (c) 2023 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "CrashHandler.h"
17
18 #include <csignal>
19 #include <cstdlib>
20 #include <execinfo.h>
21 #include <sstream>
22 #include <unistd.h>
23
24 #include "PreviewerEngineLog.h"
25 #include "PublicMethods.h"
26
27 using namespace std;
28
29 static void *oldBacetrace[10] = { nullptr };
30 static size_t oldSize = 0;
31
InitExceptionHandler()32 void CrashHandler::InitExceptionHandler()
33 {
34 if (signal(SIGSEGV, ApplicationCrashHandler) == SIG_ERR) {
35 ELOG("InitExceptionHandler failed");
36 return;
37 }
38 }
39
ApplicationCrashHandler(int signal)40 void CrashHandler::ApplicationCrashHandler(int signal)
41 {
42 // get void*'s for all entries on the stack
43 const uint32_t MAX_STACK_SIZE = 128;
44 int len = 10;
45 void *array[len];
46 size_t size = backtrace(array, MAX_STACK_SIZE);
47 bool isSame = true;
48 if (oldSize == size) {
49 for (size_t i = 0; i < size; i++) {
50 if (oldBacetrace[i] != array[i]) {
51 isSame = false;
52 }
53 }
54 }
55 if (isSame) {
56 return;
57 }
58 // print crash log head
59 int8_t crashBeginLog[] = "[JsEngine Crash]Engine Crash Info Begin.\n";
60 write(STDERR_FILENO, crashBeginLog, sizeof(crashBeginLog) - 1);
61 int8_t stackIntLog[PublicMethods::MAX_ITOA_BIT] = {0};
62 uint32_t itoaLength = PublicMethods::Ulltoa(signal, stackIntLog);
63 int8_t signalLog[] = "[JsEngine Crash]Error: signal : 0x";
64 write(STDERR_FILENO, signalLog, sizeof(signalLog) - 1);
65 write(STDERR_FILENO, stackIntLog, itoaLength);
66 // print out all the frames to stdout
67 backtrace_symbols_fd(array, size, STDERR_FILENO);
68 std::fill(oldBacetrace, oldBacetrace + len, nullptr);
69 std::copy(array, array + len, oldBacetrace);
70 oldSize = size;
71 // print crash log end
72 int8_t crashEndLog[] = "\n[JsEngine Crash]Engine Crash Info End.\n";
73 write(STDERR_FILENO, crashEndLog, sizeof(crashEndLog) - 1);
74 }