main.cpp revision dc87c52cd5645dd87380114462211574b63e6353 
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
32using namespace std;
33using namespace android;
34using namespace android::uirenderer;
35
36static auto CRASH_SIGNALS = {
37        SIGABRT,
38        SIGSEGV,
39        SIGBUS,
40};
41
42static map<int, struct sigaction> gSigChain;
43
44static 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
57static 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].num_backtrace_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
92static 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
118int main(int argc, char* argv[]) {
119    // Register a crash handler
120    struct sigaction sa;
121    memset(&sa, 0, sizeof(sa));
122    sa.sa_sigaction = &gtestSigHandler;
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