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-- f4c7e510922668c68be4aa79a00867c3d3ca9f95 by Derek Mauro <dmauro@google.com>: Many improvements to LeakChecker builds The presence of the LeakChecker is now detected when possible. GCC users using LeakChecker in standalone mode still need to use -DLEAK_CHECKER. This is now documented in the header. The hacky targets used for testing leak checking have been removed in favor of testing in AddressSanitizer mode on Kokoro. Fixes #885 Fixes #1153 PiperOrigin-RevId: 441203393 Change-Id: Ibe64ef6b104bcaf31839ff7184e558cc86abdd1c -- 5c70a23aa83b8152ab95d2cf21662fc63c80ef7d by Abseil Team <absl-team@google.com>: Add a benchmark for stacktrace PiperOrigin-RevId: 441196473 Change-Id: I4c9aa2e797aa2cae09abfaaee3abe5c09eb62fc4 -- 50b406052273b9d5bad04a7860a96e4d5d956c02 by Abseil Team <absl-team@google.com>: Internal change. PiperOrigin-RevId: 441114481 Change-Id: I667af7a50d5631ca91289dd24c91ba90233e0184 -- 568b4eaac120b420bce5290179d407d2b57d5bae by Dino Radakovic <dinor@google.com>: Internal change PiperOrigin-RevId: 440894155 Change-Id: Ia587ffc65a8321126585fb363b7c0ca8cc2a0da2 -- d53948eace4f3a10ac5a6c1496dc51b81adc412c by Abseil Team <absl-team@google.com>: Explicitly give internal linkage to symbols which are not used outside of their translation units. PiperOrigin-RevId: 440424519 Change-Id: I531c5e229d443375483b7550a34f48042589a99b GitOrigin-RevId: f4c7e510922668c68be4aa79a00867c3d3ca9f95
56 lines
1.7 KiB
C++
56 lines
1.7 KiB
C++
// Copyright 2022 The Abseil Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "absl/base/attributes.h"
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#include "absl/base/config.h"
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#include "absl/base/optimization.h"
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#include "absl/debugging/stacktrace.h"
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#include "benchmark/benchmark.h"
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namespace absl {
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ABSL_NAMESPACE_BEGIN
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namespace {
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static constexpr int kMaxStackDepth = 100;
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static constexpr int kCacheSize = (1 << 16);
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void* pcs[kMaxStackDepth];
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ABSL_ATTRIBUTE_NOINLINE void func(benchmark::State& state, int x, int depth) {
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if (x <= 0) {
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// Touch a significant amount of memory so that the stack is likely to be
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// not cached in the L1 cache.
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state.PauseTiming();
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int* arr = new int[kCacheSize];
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for (int i = 0; i < kCacheSize; ++i) benchmark::DoNotOptimize(arr[i] = 100);
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delete[] arr;
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state.ResumeTiming();
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benchmark::DoNotOptimize(absl::GetStackTrace(pcs, depth, 0));
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return;
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}
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ABSL_BLOCK_TAIL_CALL_OPTIMIZATION();
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func(state, --x, depth);
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}
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void BM_GetStackTrace(benchmark::State& state) {
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int depth = state.range(0);
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for (auto s : state) {
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func(state, depth, depth);
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}
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}
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BENCHMARK(BM_GetStackTrace)->DenseRange(10, kMaxStackDepth, 10);
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} // namespace
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ABSL_NAMESPACE_END
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} // namespace absl
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