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/*
* Copyright (C) 2016 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "LeakChecker.h"
#include "TestUtils.h"
#include <memunreachable/memunreachable.h>
#include <unistd.h>
#include <cstdio>
#include <iostream>
#include <unordered_set>
using namespace std;
namespace android {
namespace uirenderer {
namespace test {
static void logUnreachable(initializer_list<UnreachableMemoryInfo> infolist) {
// merge them all
UnreachableMemoryInfo merged;
unordered_set<uintptr_t> addrs;
merged.allocation_bytes = 0;
merged.leak_bytes = 0;
merged.num_allocations = 0;
merged.num_leaks = 0;
for (auto& info : infolist) {
// We'll be a little hazzy about these ones and just hope the biggest
// is the most accurate
merged.allocation_bytes = max(merged.allocation_bytes, info.allocation_bytes);
merged.num_allocations = max(merged.num_allocations, info.num_allocations);
for (auto& leak : info.leaks) {
if (addrs.find(leak.begin) == addrs.end()) {
merged.leaks.push_back(leak);
merged.num_leaks++;
merged.leak_bytes += leak.size;
addrs.insert(leak.begin);
}
}
}
// Now log the result
if (merged.num_leaks) {
cout << endl << "Leaked memory!" << endl;
if (!merged.leaks[0].backtrace.num_frames) {
cout << "Re-run with 'export LIBC_DEBUG_MALLOC_OPTIONS=backtrace' to get backtraces"
<< endl;
}
cout << merged.ToString(false);
}
}
void LeakChecker::checkForLeaks() {
// TODO: Until we can shutdown the RT thread we need to do this in
// two passes as GetUnreachableMemory has limited insight into
// thread-local caches so some leaks will not be properly tagged as leaks
UnreachableMemoryInfo rtMemInfo;
TestUtils::runOnRenderThread([&rtMemInfo](renderthread::RenderThread& thread) {
// Check for leaks
if (!GetUnreachableMemory(rtMemInfo)) {
cerr << "Failed to get unreachable memory!" << endl;
return;
}
});
UnreachableMemoryInfo uiMemInfo;
if (!GetUnreachableMemory(uiMemInfo)) {
cerr << "Failed to get unreachable memory!" << endl;
return;
}
logUnreachable({rtMemInfo, uiMemInfo});
}
} /* namespace test */
} /* namespace uirenderer */
} /* namespace android */
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