mirror of
https://github.com/chromium/crashpad.git
synced 2024-12-29 08:39:44 +08:00
6dac7ecdf5
This is essentially based on a search for “^ *const [^*&]*=[^(]*$” Change-Id: Id571119d0b9a64c6f387eccd51cea7c9eb530e13 Reviewed-on: https://chromium-review.googlesource.com/585555 Reviewed-by: Leonard Mosescu <mosescu@chromium.org>
101 lines
2.9 KiB
C++
101 lines
2.9 KiB
C++
// Copyright 2017 The Crashpad Authors. All rights reserved.
|
|
//
|
|
// 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/thread_info.h"
|
|
|
|
#include "build/build_config.h"
|
|
#include "gtest/gtest.h"
|
|
#include "test/multiprocess.h"
|
|
#include "util/file/file_io.h"
|
|
#include "util/misc/from_pointer_cast.h"
|
|
|
|
namespace crashpad {
|
|
namespace test {
|
|
namespace {
|
|
|
|
class SameBitnessTest : public Multiprocess {
|
|
public:
|
|
SameBitnessTest() : Multiprocess() {}
|
|
~SameBitnessTest() {}
|
|
|
|
private:
|
|
void MultiprocessParent() override {
|
|
LinuxVMAddress expected_tls;
|
|
CheckedReadFileExactly(
|
|
ReadPipeHandle(), &expected_tls, sizeof(expected_tls));
|
|
|
|
ThreadInfo thread_info;
|
|
ASSERT_TRUE(thread_info.Initialize(ChildPID()));
|
|
|
|
#if defined(ARCH_CPU_64_BITS)
|
|
constexpr bool am_64_bit = true;
|
|
#else
|
|
constexpr bool am_64_bit = false;
|
|
#endif // ARCH_CPU_64_BITS
|
|
|
|
EXPECT_EQ(thread_info.Is64Bit(), am_64_bit);
|
|
|
|
ThreadContext thread_context;
|
|
thread_info.GetGeneralPurposeRegisters(&thread_context);
|
|
|
|
#if defined(ARCH_CPU_X86_64)
|
|
EXPECT_EQ(thread_context.t64.fs_base, expected_tls);
|
|
#endif // ARCH_CPU_X86_64
|
|
|
|
FloatContext float_context;
|
|
EXPECT_TRUE(thread_info.GetFloatingPointRegisters(&float_context));
|
|
|
|
LinuxVMAddress tls_address;
|
|
ASSERT_TRUE(thread_info.GetThreadArea(&tls_address));
|
|
EXPECT_EQ(tls_address, expected_tls);
|
|
}
|
|
|
|
void MultiprocessChild() override {
|
|
LinuxVMAddress expected_tls;
|
|
#if defined(ARCH_CPU_ARMEL)
|
|
// 0xffff0fe0 is the address of the kernel user helper __kuser_get_tls().
|
|
auto kuser_get_tls = reinterpret_cast<void* (*)()>(0xffff0fe0);
|
|
expected_tls = FromPointerCast<LinuxVMAddress>(kuser_get_tls());
|
|
#elif defined(ARCH_CPU_ARM64)
|
|
// Linux/aarch64 places the tls address in system register tpidr_el0.
|
|
asm("mrs %0, tpidr_el0" : "=r"(expected_tls));
|
|
#elif defined(ARCH_CPU_X86)
|
|
uint32_t expected_tls_32;
|
|
asm("movl %%gs:0x0, %0" : "=r"(expected_tls_32));
|
|
expected_tls = expected_tls_32;
|
|
#elif defined(ARCH_CPU_X86_64)
|
|
asm("movq %%fs:0x0, %0" : "=r"(expected_tls));
|
|
#else
|
|
#error Port.
|
|
#endif // ARCH_CPU_ARMEL
|
|
|
|
CheckedWriteFile(WritePipeHandle(), &expected_tls, sizeof(expected_tls));
|
|
|
|
CheckedReadFileAtEOF(ReadPipeHandle());
|
|
}
|
|
|
|
DISALLOW_COPY_AND_ASSIGN(SameBitnessTest);
|
|
};
|
|
|
|
TEST(ThreadInfo, SameBitness) {
|
|
SameBitnessTest test;
|
|
test.Run();
|
|
}
|
|
|
|
// TODO(jperaza): Test against a process with different bitness.
|
|
|
|
} // namespace
|
|
} // namespace test
|
|
} // namespace crashpad
|