crashpad/snapshot/mac/thread_snapshot_mac.cc
Mark Mentovai 809939c9d1 mac: Crashpad for macOS on arm64, phase 1: build it
This gets all production code for Chrome building, excluding tests.
There aren’t any guarantees that anything works yet.

This is mostly a lot of CPU context shuffling.

In contrast to macOS on x86, there’s no need to support 32-bit arm on
macOS, because this new platform is 64-bit-only from its inception.

Bug: crashpad:345
Change-Id: I187239b6a969005a3458af7fe30c44147a57f95f
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2285961
Reviewed-by: Robert Sesek <rsesek@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
2020-07-08 16:18:40 +00:00

132 lines
4.3 KiB
C++

// Copyright 2014 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 "snapshot/mac/thread_snapshot_mac.h"
#include "base/check_op.h"
#include "snapshot/mac/cpu_context_mac.h"
#include "snapshot/mac/process_reader_mac.h"
namespace crashpad {
namespace internal {
ThreadSnapshotMac::ThreadSnapshotMac()
: ThreadSnapshot(),
context_union_(),
context_(),
stack_(),
thread_id_(0),
thread_specific_data_address_(0),
thread_(MACH_PORT_NULL),
suspend_count_(0),
priority_(0),
initialized_() {
}
ThreadSnapshotMac::~ThreadSnapshotMac() {
}
bool ThreadSnapshotMac::Initialize(
ProcessReaderMac* process_reader,
const ProcessReaderMac::Thread& process_reader_thread) {
INITIALIZATION_STATE_SET_INITIALIZING(initialized_);
thread_ = process_reader_thread.port;
thread_id_ = process_reader_thread.id;
suspend_count_ = process_reader_thread.suspend_count;
priority_ = process_reader_thread.priority;
thread_specific_data_address_ =
process_reader_thread.thread_specific_data_address;
stack_.Initialize(process_reader->Memory(),
process_reader_thread.stack_region_address,
process_reader_thread.stack_region_size);
#if defined(ARCH_CPU_X86_FAMILY)
if (process_reader->Is64Bit()) {
context_.architecture = kCPUArchitectureX86_64;
context_.x86_64 = &context_union_.x86_64;
InitializeCPUContextX86_64(context_.x86_64,
THREAD_STATE_NONE,
nullptr,
0,
&process_reader_thread.thread_context.t64,
&process_reader_thread.float_context.f64,
&process_reader_thread.debug_context.d64);
} else {
context_.architecture = kCPUArchitectureX86;
context_.x86 = &context_union_.x86;
InitializeCPUContextX86(context_.x86,
THREAD_STATE_NONE,
nullptr,
0,
&process_reader_thread.thread_context.t32,
&process_reader_thread.float_context.f32,
&process_reader_thread.debug_context.d32);
}
#elif defined(ARCH_CPU_ARM64)
context_.architecture = kCPUArchitectureARM64;
context_.arm64 = &context_union_.arm64;
InitializeCPUContextARM64(context_.arm64,
THREAD_STATE_NONE,
nullptr,
0,
&process_reader_thread.thread_context,
&process_reader_thread.float_context,
&process_reader_thread.debug_context);
#else
#error Port to your CPU architecture
#endif
INITIALIZATION_STATE_SET_VALID(initialized_);
return true;
}
const CPUContext* ThreadSnapshotMac::Context() const {
INITIALIZATION_STATE_DCHECK_VALID(initialized_);
return &context_;
}
const MemorySnapshot* ThreadSnapshotMac::Stack() const {
INITIALIZATION_STATE_DCHECK_VALID(initialized_);
return &stack_;
}
uint64_t ThreadSnapshotMac::ThreadID() const {
INITIALIZATION_STATE_DCHECK_VALID(initialized_);
return thread_id_;
}
int ThreadSnapshotMac::SuspendCount() const {
INITIALIZATION_STATE_DCHECK_VALID(initialized_);
return suspend_count_;
}
int ThreadSnapshotMac::Priority() const {
INITIALIZATION_STATE_DCHECK_VALID(initialized_);
return priority_;
}
uint64_t ThreadSnapshotMac::ThreadSpecificDataAddress() const {
INITIALIZATION_STATE_DCHECK_VALID(initialized_);
return thread_specific_data_address_;
}
std::vector<const MemorySnapshot*> ThreadSnapshotMac::ExtraMemory() const {
return std::vector<const MemorySnapshot*>();
}
} // namespace internal
} // namespace crashpad