1 /*
2 * Copyright (c) 2021-2024 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 <cstdio>
17 #include <cstdlib>
18 #include <cstring>
19 #include <securec.h>
20 #include <unistd.h>
21
22 #include "dfx_define.h"
23 #include "dfx_log.h"
24 #include "process_dumper.h"
25
26 #if defined(DEBUG_CRASH_LOCAL_HANDLER)
27 #include "dfx_signal_local_handler.h"
28 #endif
29
30 static const int DUMP_ARG_ONE = 1;
31 static const std::string DUMP_STACK_TAG_USAGE = "usage:";
32 static const std::string DUMP_STACK_TAG_FAILED = "failed:";
33
PrintCommandHelp()34 static void PrintCommandHelp()
35 {
36 printf("%s\nplease use dumpcatcher\n", DUMP_STACK_TAG_USAGE.c_str());
37 }
38
ParseParameters(int argc, char *argv[], bool &isSignalHdlr)39 static bool ParseParameters(int argc, char *argv[], bool &isSignalHdlr)
40 {
41 if (argc <= DUMP_ARG_ONE) {
42 return false;
43 }
44 DFXLOGD("[%{public}d]: argc: %{public}d, argv1: %{public}s", __LINE__, argc, argv[1]);
45
46 if (!strcmp("-signalhandler", argv[DUMP_ARG_ONE])) {
47 isSignalHdlr = true;
48 return true;
49 }
50 return false;
51 }
52
main(int argc, char *argv[])53 int main(int argc, char *argv[])
54 {
55 DFXLOGW("Start main function of processdump");
56 #if defined(DEBUG_CRASH_LOCAL_HANDLER)
57 DFX_InstallLocalSignalHandler();
58 #endif
59 if (signal(SIGCHLD, SIG_IGN) == SIG_ERR) {
60 DFXLOGE("Processdump ignore SIGCHLD failed.");
61 }
62
63 bool isSignalHdlr = false;
64
65 alarm(PROCESSDUMP_TIMEOUT);
66 setsid();
67
68 if (!ParseParameters(argc, argv, isSignalHdlr)) {
69 PrintCommandHelp();
70 return 0;
71 }
72
73 if (isSignalHdlr) {
74 OHOS::HiviewDFX::ProcessDumper::GetInstance().Dump();
75 }
76 #ifndef CLANG_COVERAGE
77 _exit(0);
78 #endif
79 return 0;
80 }
81