diff options
Diffstat (limited to 'test/perf/linux/signal_benchmark.cc')
-rw-r--r-- | test/perf/linux/signal_benchmark.cc | 61 |
1 files changed, 0 insertions, 61 deletions
diff --git a/test/perf/linux/signal_benchmark.cc b/test/perf/linux/signal_benchmark.cc deleted file mode 100644 index cec679191..000000000 --- a/test/perf/linux/signal_benchmark.cc +++ /dev/null @@ -1,61 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// 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 <signal.h> -#include <string.h> - -#include "gtest/gtest.h" -#include "benchmark/benchmark.h" -#include "test/util/logging.h" -#include "test/util/test_util.h" - -namespace gvisor { -namespace testing { - -namespace { - -void FixupHandler(int sig, siginfo_t* si, void* void_ctx) { - static unsigned int dataval = 0; - - // Skip the offending instruction. - ucontext_t* ctx = reinterpret_cast<ucontext_t*>(void_ctx); - ctx->uc_mcontext.gregs[REG_RAX] = reinterpret_cast<greg_t>(&dataval); -} - -void BM_FaultSignalFixup(benchmark::State& state) { - // Set up the signal handler. - struct sigaction sa = {}; - sigemptyset(&sa.sa_mask); - sa.sa_sigaction = FixupHandler; - sa.sa_flags = SA_SIGINFO; - TEST_CHECK(sigaction(SIGSEGV, &sa, nullptr) == 0); - - // Fault, fault, fault. - for (auto _ : state) { - // Trigger the segfault. - asm volatile( - "movq $0, %%rax\n" - "movq $0x77777777, (%%rax)\n" - : - : - : "rax"); - } -} - -BENCHMARK(BM_FaultSignalFixup)->UseRealTime(); - -} // namespace - -} // namespace testing -} // namespace gvisor |