1 /*
2 * Copyright (c) 2025 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 #include "decorative_dump_info.h"
16 #include "crash_exception.h"
17 #include "dfx_log.h"
18 #include "dump_utils.h"
19 #include "dfx_trace.h"
20 #include "process_dump_config.h"
21 #include "dfx_buffer_writer.h"
22 namespace OHOS {
23 namespace HiviewDFX {
24 REGISTER_DUMP_INFO_CLASS(OtherThreadDumpInfo);
25
UnwindStack(DfxProcess & process,const ProcessDumpRequest & request,Unwinder & unwinder)26 int OtherThreadDumpInfo::UnwindStack(DfxProcess& process, const ProcessDumpRequest& request, Unwinder& unwinder)
27 {
28 int unwindSuccessCnt = DecorativeDumpInfo::UnwindStack(process, request, unwinder);
29 DFXLOGI("unwind other thread dump start");
30 auto pid = process.GetVmPid();
31 if (pid == 0) {
32 DFXLOGW("vm pid is null, can not unwind other thread!");
33 return unwindSuccessCnt;
34 }
35 for (const auto &thread : process.GetOtherThreads()) {
36 auto regs = thread->GetThreadRegs();
37 unwinder.SetRegs(regs);
38 bool withRegs = regs != nullptr;
39 pid_t tid = thread->GetThreadInfo().nsTid;
40 if (!withRegs) {
41 DFXLOGI("not with regs");
42 DumpUtils::GetThreadKernelStack(*thread);
43 continue;
44 }
45 DFX_TRACE_START("OtherThreadUnwindRemote:%d", tid);
46 if (unwinder.UnwindRemote(pid, withRegs, ProcessDumpConfig::GetInstance().GetConfig().maxFrameNums)) {
47 unwindSuccessCnt++;
48 } else {
49 DFXLOGW("%{public}s, unwind tid(%{public}d) failed.", __func__, tid);
50 }
51 DFX_TRACE_FINISH();
52 DFX_TRACE_START("OtherThreadGetFrames:%d", tid);
53 thread->SetFrames(unwinder.GetFrames());
54 DFX_TRACE_FINISH();
55 #ifdef PARSE_LOCK_OWNER
56 DumpUtils::ParseLockInfo(unwinder, pid, tid);
57 #endif
58 ReportUnwinderException(unwinder.GetLastErrorCode());
59 }
60 return unwindSuccessCnt;
61 }
62
Print(DfxProcess & process,const ProcessDumpRequest & request,Unwinder & unwinder)63 void OtherThreadDumpInfo::Print(DfxProcess& process, const ProcessDumpRequest& request, Unwinder& unwinder)
64 {
65 DecorativeDumpInfo::Print(process, request, unwinder);
66 std::string dumpInfo;
67 if (request.type != ProcessDumpType::DUMP_TYPE_DUMP_CATCH && !process.GetOtherThreads().empty()) {
68 dumpInfo += "Other thread info:\n";
69 }
70 for (const auto &thread : process.GetOtherThreads()) {
71 dumpInfo += thread->ToString();
72 }
73 DfxBufferWriter::GetInstance().WriteMsg(dumpInfo);
74 }
75
Symbolize(DfxProcess & process,Unwinder & unwinder)76 void OtherThreadDumpInfo::Symbolize(DfxProcess& process, Unwinder& unwinder)
77 {
78 DecorativeDumpInfo::Symbolize(process, unwinder);
79 for (const auto &thread : process.GetOtherThreads()) {
80 DFX_TRACE_START("ParseSymbol otherThread:%d", thread->GetThreadInfo().nsTid);
81 thread->ParseSymbol(unwinder);
82 DFX_TRACE_FINISH();
83 }
84 }
85 }
86 }