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0924e56751
A PtraceBroker/Client pair implement a PtraceConnection over a socket. The broker runs in a process with `ptrace` capabilities for the target process and serves requests for the client over a socket. Bug: crashpad:30 Change-Id: Ied19bcedf84b46c8f68440fd1c284b2126470e5e Reviewed-on: https://chromium-review.googlesource.com/780397 Commit-Queue: Joshua Peraza <jperaza@chromium.org> Reviewed-by: Mark Mentovai <mark@chromium.org>
82 lines
2.2 KiB
C++
82 lines
2.2 KiB
C++
// Copyright 2017 The Crashpad Authors. All rights reserved.
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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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// http://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 "util/linux/ptracer.h"
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#include "build/build_config.h"
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#include "gtest/gtest.h"
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#include "test/linux/get_tls.h"
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#include "test/multiprocess.h"
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#include "util/file/file_io.h"
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#include "util/linux/scoped_ptrace_attach.h"
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namespace crashpad {
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namespace test {
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namespace {
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class SameBitnessTest : public Multiprocess {
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public:
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SameBitnessTest() : Multiprocess() {}
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~SameBitnessTest() {}
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private:
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void MultiprocessParent() override {
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LinuxVMAddress expected_tls;
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CheckedReadFileExactly(
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ReadPipeHandle(), &expected_tls, sizeof(expected_tls));
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#if defined(ARCH_CPU_64_BITS)
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constexpr bool am_64_bit = true;
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#else
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constexpr bool am_64_bit = false;
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#endif // ARCH_CPU_64_BITS
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ScopedPtraceAttach attach;
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ASSERT_TRUE(attach.ResetAttach(ChildPID()));
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Ptracer ptracer(am_64_bit, /* can_log= */ true);
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EXPECT_EQ(ptracer.Is64Bit(), am_64_bit);
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ThreadInfo thread_info;
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ASSERT_TRUE(ptracer.GetThreadInfo(ChildPID(), &thread_info));
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#if defined(ARCH_CPU_X86_64)
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EXPECT_EQ(thread_info.thread_context.t64.fs_base, expected_tls);
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#endif // ARCH_CPU_X86_64
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EXPECT_EQ(thread_info.thread_specific_data_address, expected_tls);
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}
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void MultiprocessChild() override {
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LinuxVMAddress expected_tls = GetTLS();
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CheckedWriteFile(WritePipeHandle(), &expected_tls, sizeof(expected_tls));
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CheckedReadFileAtEOF(ReadPipeHandle());
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}
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DISALLOW_COPY_AND_ASSIGN(SameBitnessTest);
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};
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TEST(Ptracer, SameBitness) {
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SameBitnessTest test;
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test.Run();
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}
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// TODO(jperaza): Test against a process with different bitness.
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} // namespace
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} // namespace test
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} // namespace crashpad
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