1 /*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "gtest/gtest.h"
18
19 #include "Caches.h"
20 #include "thread/TaskManager.h"
21 #include "tests/common/TestUtils.h"
22
23 #include <memunreachable/memunreachable.h>
24
25 #include <cstdio>
26 #include <iostream>
27 #include <map>
28 #include <unordered_set>
29 #include <signal.h>
30 #include <unistd.h>
31
32 using namespace std;
33 using namespace android;
34 using namespace android::uirenderer;
35
36 static auto CRASH_SIGNALS = {
37 SIGABRT,
38 SIGSEGV,
39 SIGBUS,
40 };
41
42 static map<int, struct sigaction> gSigChain;
43
gtestSigHandler(int sig,siginfo_t * siginfo,void * context)44 static void gtestSigHandler(int sig, siginfo_t* siginfo, void* context) {
45 auto testinfo = ::testing::UnitTest::GetInstance()->current_test_info();
46 printf("[ FAILED ] %s.%s\n", testinfo->test_case_name(),
47 testinfo->name());
48 printf("[ FATAL! ] Process crashed, aborting tests!\n");
49 fflush(stdout);
50
51 // restore the default sighandler and re-raise
52 struct sigaction sa = gSigChain[sig];
53 sigaction(sig, &sa, nullptr);
54 raise(sig);
55 }
56
logUnreachable(initializer_list<UnreachableMemoryInfo> infolist)57 static void logUnreachable(initializer_list<UnreachableMemoryInfo> infolist) {
58 // merge them all
59 UnreachableMemoryInfo merged;
60 unordered_set<uintptr_t> addrs;
61 merged.allocation_bytes = 0;
62 merged.leak_bytes = 0;
63 merged.num_allocations = 0;
64 merged.num_leaks = 0;
65 for (auto& info : infolist) {
66 // We'll be a little hazzy about these ones and just hope the biggest
67 // is the most accurate
68 merged.allocation_bytes = max(merged.allocation_bytes, info.allocation_bytes);
69 merged.num_allocations = max(merged.num_allocations, info.num_allocations);
70 for (auto& leak : info.leaks) {
71 if (addrs.find(leak.begin) == addrs.end()) {
72 merged.leaks.push_back(leak);
73 merged.num_leaks++;
74 merged.leak_bytes += leak.size;
75 addrs.insert(leak.begin);
76 }
77 }
78 }
79
80 // Now log the result
81 if (merged.num_leaks) {
82 cout << endl << "Leaked memory!" << endl;
83 if (!merged.leaks[0].backtrace.num_frames) {
84 cout << "Re-run with 'setprop libc.debug.malloc.program hwui_unit_test'"
85 << endl << "and 'setprop libc.debug.malloc.options backtrace=8'"
86 << " to get backtraces" << endl;
87 }
88 cout << merged.ToString(false);
89 }
90 }
91
checkForLeaks()92 static void checkForLeaks() {
93 // TODO: Until we can shutdown the RT thread we need to do this in
94 // two passes as GetUnreachableMemory has limited insight into
95 // thread-local caches so some leaks will not be properly tagged as leaks
96 nsecs_t before = systemTime();
97 UnreachableMemoryInfo rtMemInfo;
98 TestUtils::runOnRenderThread([&rtMemInfo](renderthread::RenderThread& thread) {
99 if (Caches::hasInstance()) {
100 Caches::getInstance().tasks.stop();
101 }
102 // Check for leaks
103 if (!GetUnreachableMemory(rtMemInfo)) {
104 cerr << "Failed to get unreachable memory!" << endl;
105 return;
106 }
107 });
108 UnreachableMemoryInfo uiMemInfo;
109 if (!GetUnreachableMemory(uiMemInfo)) {
110 cerr << "Failed to get unreachable memory!" << endl;
111 return;
112 }
113 logUnreachable({rtMemInfo, uiMemInfo});
114 nsecs_t after = systemTime();
115 cout << "Leak check took " << ns2ms(after - before) << "ms" << endl;
116 }
117
main(int argc,char * argv[])118 int main(int argc, char* argv[]) {
119 // Register a crash handler
120 struct sigaction sa;
121 memset(&sa, 0, sizeof(sa));
122 sa.sa_sigaction = >estSigHandler;
123 sa.sa_flags = SA_SIGINFO;
124 for (auto sig : CRASH_SIGNALS) {
125 struct sigaction old_sa;
126 sigaction(sig, &sa, &old_sa);
127 gSigChain.insert(pair<int, struct sigaction>(sig, old_sa));
128 }
129
130 // Run the tests
131 testing::InitGoogleTest(&argc, argv);
132 int ret = RUN_ALL_TESTS();
133 checkForLeaks();
134 return ret;
135 }
136
137