crashpad/util/linux/ptracer_test.cc
Mark Mentovai 6278690abe Update copyright boilerplate, 2022 edition (Crashpad)
sed -i '' -E -e 's/Copyright (.+) The Crashpad Authors\. All rights reserved\.$/Copyright \1 The Crashpad Authors/' $(git grep -El 'Copyright (.+) The Crashpad Authors\. All rights reserved\.$')

Bug: chromium:1098010
Change-Id: I8d6138469ddbe3d281a5d83f64cf918ec2491611
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3878262
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
2022-09-06 23:54:07 +00:00

84 lines
2.3 KiB
C++

// Copyright 2017 The Crashpad 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 "util/linux/ptracer.h"
#include "build/build_config.h"
#include "gtest/gtest.h"
#include "test/linux/get_tls.h"
#include "test/multiprocess.h"
#include "util/file/file_io.h"
#include "util/linux/scoped_ptrace_attach.h"
namespace crashpad {
namespace test {
namespace {
class SameBitnessTest : public Multiprocess {
public:
SameBitnessTest() : Multiprocess() {}
SameBitnessTest(const SameBitnessTest&) = delete;
SameBitnessTest& operator=(const SameBitnessTest&) = delete;
~SameBitnessTest() {}
private:
void MultiprocessParent() override {
LinuxVMAddress expected_tls;
CheckedReadFileExactly(
ReadPipeHandle(), &expected_tls, sizeof(expected_tls));
#if defined(ARCH_CPU_64_BITS)
constexpr bool am_64_bit = true;
#else
constexpr bool am_64_bit = false;
#endif // ARCH_CPU_64_BITS
ScopedPtraceAttach attach;
ASSERT_TRUE(attach.ResetAttach(ChildPID()));
Ptracer ptracer(am_64_bit, /* can_log= */ true);
EXPECT_EQ(ptracer.Is64Bit(), am_64_bit);
ThreadInfo thread_info;
ASSERT_TRUE(ptracer.GetThreadInfo(ChildPID(), &thread_info));
#if defined(ARCH_CPU_X86_64)
EXPECT_EQ(thread_info.thread_context.t64.fs_base, expected_tls);
#endif // ARCH_CPU_X86_64
EXPECT_EQ(thread_info.thread_specific_data_address, expected_tls);
}
void MultiprocessChild() override {
LinuxVMAddress expected_tls = GetTLS();
CheckedWriteFile(WritePipeHandle(), &expected_tls, sizeof(expected_tls));
CheckedReadFileAtEOF(ReadPipeHandle());
}
};
TEST(Ptracer, SameBitness) {
SameBitnessTest test;
test.Run();
}
// TODO(jperaza): Test against a process with different bitness.
} // namespace
} // namespace test
} // namespace crashpad