| sergeyv | 7dc370b | 2016-06-17 11:21:11 -0700 | [diff] [blame^] | 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 "LeakChecker.h" |
| 18 | |
| 19 | #include "Caches.h" |
| 20 | #include "TestUtils.h" |
| 21 | |
| 22 | #include <cstdio> |
| 23 | #include <iostream> |
| 24 | #include <memunreachable/memunreachable.h> |
| 25 | #include <unistd.h> |
| 26 | #include <unordered_set> |
| 27 | |
| 28 | using namespace std; |
| 29 | |
| 30 | namespace android { |
| 31 | namespace uirenderer { |
| 32 | namespace test { |
| 33 | |
| 34 | static void logUnreachable(initializer_list<UnreachableMemoryInfo> infolist) { |
| 35 | // merge them all |
| 36 | UnreachableMemoryInfo merged; |
| 37 | unordered_set<uintptr_t> addrs; |
| 38 | merged.allocation_bytes = 0; |
| 39 | merged.leak_bytes = 0; |
| 40 | merged.num_allocations = 0; |
| 41 | merged.num_leaks = 0; |
| 42 | for (auto& info : infolist) { |
| 43 | // We'll be a little hazzy about these ones and just hope the biggest |
| 44 | // is the most accurate |
| 45 | merged.allocation_bytes = max(merged.allocation_bytes, info.allocation_bytes); |
| 46 | merged.num_allocations = max(merged.num_allocations, info.num_allocations); |
| 47 | for (auto& leak : info.leaks) { |
| 48 | if (addrs.find(leak.begin) == addrs.end()) { |
| 49 | merged.leaks.push_back(leak); |
| 50 | merged.num_leaks++; |
| 51 | merged.leak_bytes += leak.size; |
| 52 | addrs.insert(leak.begin); |
| 53 | } |
| 54 | } |
| 55 | } |
| 56 | |
| 57 | // Now log the result |
| 58 | if (merged.num_leaks) { |
| 59 | cout << endl << "Leaked memory!" << endl; |
| 60 | if (!merged.leaks[0].backtrace.num_frames) { |
| 61 | cout << "Re-run with 'setprop libc.debug.malloc.program hwui_unit_test'" |
| 62 | << endl << "and 'setprop libc.debug.malloc.options backtrace=8'" |
| 63 | << " to get backtraces" << endl; |
| 64 | } |
| 65 | cout << merged.ToString(false); |
| 66 | } |
| 67 | } |
| 68 | |
| 69 | void LeakChecker::checkForLeaks() { |
| 70 | // TODO: Until we can shutdown the RT thread we need to do this in |
| 71 | // two passes as GetUnreachableMemory has limited insight into |
| 72 | // thread-local caches so some leaks will not be properly tagged as leaks |
| 73 | nsecs_t before = systemTime(); |
| 74 | UnreachableMemoryInfo rtMemInfo; |
| 75 | TestUtils::runOnRenderThread([&rtMemInfo](renderthread::RenderThread& thread) { |
| 76 | if (Caches::hasInstance()) { |
| 77 | Caches::getInstance().tasks.stop(); |
| 78 | } |
| 79 | // Check for leaks |
| 80 | if (!GetUnreachableMemory(rtMemInfo)) { |
| 81 | cerr << "Failed to get unreachable memory!" << endl; |
| 82 | return; |
| 83 | } |
| 84 | }); |
| 85 | UnreachableMemoryInfo uiMemInfo; |
| 86 | if (!GetUnreachableMemory(uiMemInfo)) { |
| 87 | cerr << "Failed to get unreachable memory!" << endl; |
| 88 | return; |
| 89 | } |
| 90 | logUnreachable({rtMemInfo, uiMemInfo}); |
| 91 | nsecs_t after = systemTime(); |
| 92 | cout << "Leak check took " << ns2ms(after - before) << "ms" << endl; |
| 93 | } |
| 94 | |
| 95 | } /* namespace test */ |
| 96 | } /* namespace uirenderer */ |
| 97 | } /* namespace android */ |