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 <gtest/gtest.h>
17 
18 #include <cstdio>
19 #include <thread>
20 #include <unistd.h>
21 #include <malloc.h>
22 #include <securec.h>
23 #include "dfx_ptrace.h"
24 #include "dfx_regs_get.h"
25 #include "unwinder.h"
26 
27 using namespace testing;
28 using namespace testing::ext;
29 
30 namespace OHOS {
31 namespace HiviewDFX {
32 #undef LOG_DOMAIN
33 #undef LOG_TAG
34 #define LOG_TAG "DfxUnwinderPacTest"
35 #define LOG_DOMAIN 0xD002D11
36 
37 class UnwinderPacTest : public testing::Test {
38 public:
SetUpTestCase()39     static void SetUpTestCase() {}
TearDownTestCase()40     static void TearDownTestCase() {}
SetUp()41     void SetUp() {}
TearDown()42     void TearDown() {}
43 };
44 
45 /**
46  * @tc.name: UnwinderPacTest001
47  * @tc.desc: test unwinder unwind interface with pac
48  * @tc.type: FUNC
49  */
50 HWTEST_F(UnwinderPacTest, UnwinderPacTest001, TestSize.Level2)
51 {
52     GTEST_LOG_(INFO) << "UnwinderPacTest001: start.";
53     static pid_t pid = getpid();
54     pid_t child = fork();
55     if (child == 0) {
56         GTEST_LOG_(INFO) << "pid: " << pid << ", ppid:" << getppid();
57         auto unwinder = std::make_shared<Unwinder>(pid);
58         bool unwRet = DfxPtrace::Attach(pid);
59         EXPECT_EQ(true, unwRet) << "UnwinderPacTest001: Attach:" << unwRet;
60         auto regs = DfxRegs::CreateRemoteRegs(pid);
61         auto maps = DfxMaps::Create(pid);
62         unwinder->SetRegs(regs);
63         UnwindContext context;
64         context.pid = pid;
65         context.regs = regs;
66         context.maps = maps;
67         unwRet = unwinder->Unwind(&context);
68         EXPECT_EQ(true, unwRet) << "UnwinderPacTest001: Unwind:" << unwRet;
69         auto frames = unwinder->GetFrames();
70         ASSERT_GT(frames.size(), 1);
71         GTEST_LOG_(INFO) << "frames:\n" << Unwinder::GetFramesStr(frames);
72         DfxPtrace::Detach(pid);
73         _exit(0);
74     }
75 
76     int status;
77     int ret = wait(&status);
78     ASSERT_EQ(status, 0);
79     GTEST_LOG_(INFO) << "Status:" << status << " Result:" << ret;
80     GTEST_LOG_(INFO) << "UnwinderPacTest001: end.";
81 }
82 
83 /**
84  * @tc.name: UnwinderPacTest002
85  * @tc.desc: test unwinder FpStep interface with pac
86  * @tc.type: FUNC
87  */
88 HWTEST_F(UnwinderPacTest, UnwinderPacTest002, TestSize.Level2)
89 {
90     GTEST_LOG_(INFO) << "UnwinderPacTest002: start.";
91 #if defined(__aarch64__)
92     static pid_t pid = getpid();
93     pid_t child = fork();
94     if (child == 0) {
95         GTEST_LOG_(INFO) << "pid: " << pid << ", ppid:" << getppid();
96         auto unwinder = std::make_shared<Unwinder>(pid);
97         bool unwRet = DfxPtrace::Attach(pid);
98         EXPECT_EQ(true, unwRet) << "UnwinderPacTest002: Attach:" << unwRet;
99         auto regs = DfxRegs::CreateRemoteRegs(pid);
100         unwinder->SetRegs(regs);
101         UnwindContext context;
102         context.pid = pid;
103         context.regs = regs;
104         unwRet = unwinder->UnwindByFp(&context);
105         ASSERT_TRUE(unwRet) << "UnwinderPacTest002: unwRet:" << unwRet;
106         DfxPtrace::Detach(pid);
107         _exit(0);
108     }
109 
110     int status;
111     int ret = wait(&status);
112     ASSERT_EQ(status, 0);
113     GTEST_LOG_(INFO) << "Status:" << status << " Result:" << ret;
114 #endif
115     GTEST_LOG_(INFO) << "UnwinderPacTest002: end.";
116 }
117 } // namespace HiviewDFX
118 } // namepsace OHOS