From bf7fc9986e20f664958fc227547fd8d2fdcf863e Mon Sep 17 00:00:00 2001 From: Abseil Team Date: Mon, 5 Feb 2018 05:38:45 -0800 Subject: Changes imported from Abseil "staging" branch: - b00fb48c537d494ab775bc6701acfb8e100d8b88 Add a test utility for measuring stack consumption. by Derek Mauro GitOrigin-RevId: b00fb48c537d494ab775bc6701acfb8e100d8b88 Change-Id: I00466a6d6c14911c12d34f62a4144925748e3f61 --- absl/debugging/internal/stack_consumption_test.cc | 48 +++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 absl/debugging/internal/stack_consumption_test.cc (limited to 'absl/debugging/internal/stack_consumption_test.cc') diff --git a/absl/debugging/internal/stack_consumption_test.cc b/absl/debugging/internal/stack_consumption_test.cc new file mode 100644 index 000000000000..5ce3846ec449 --- /dev/null +++ b/absl/debugging/internal/stack_consumption_test.cc @@ -0,0 +1,48 @@ +// +// Copyright 2018 The Abseil 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 "absl/debugging/internal/stack_consumption.h" + +#ifdef ABSL_INTERNAL_HAVE_DEBUGGING_STACK_CONSUMPTION + +#include + +#include "gtest/gtest.h" +#include "absl/base/internal/raw_logging.h" + +namespace absl { +namespace debugging_internal { +namespace { + +static void SimpleSignalHandler(int signo) { + char buf[100]; + memset(buf, 'a', sizeof(buf)); + + // Never true, but prevents compiler from optimizing buf out. + if (signo == 0) { + ABSL_RAW_LOG(INFO, "%p", static_cast(buf)); + } +} + +TEST(SignalHandlerStackConsumptionTest, MeasuresStackConsumption) { + // Our handler should consume reasonable number of bytes. + EXPECT_GE(GetSignalHandlerStackConsumption(SimpleSignalHandler), 100); +} + +} // namespace +} // namespace debugging_internal +} // namespace absl + +#endif // ABSL_INTERNAL_HAVE_DEBUGGING_STACK_CONSUMPTION -- cgit 1.4.1