Add ThreadSnapshotMac

snapshot/thread_snapshot_mac.cc

Index: snapshot/thread_snapshot_mac.cc
diff --git a/snapshot/thread_snapshot_mac.cc b/snapshot/thread_snapshot_mac.cc
new file mode 100644
index 0000000000000000000000000000000000000000..ac61a217e85da05b9f08366c3db1e0624ad4f19e
--- /dev/null
+++ b/snapshot/thread_snapshot_mac.cc
@@ -0,0 +1,115 @@
+// 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/thread_snapshot_mac.h"
+
+#include "base/logging.h"
+#include "snapshot/cpu_context_mac.h"
+#include "util/mac/process_reader.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(
+    ProcessReader* process_reader,
+    const ProcessReader::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,
+                    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,
+                               NULL,
+                               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,
+                            NULL,
+                            0,
+                            &process_reader_thread.thread_context.t32,
+                            &process_reader_thread.float_context.f32,
+                            &process_reader_thread.debug_context.d32);
+  }
+#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_;
+}
+
+}  // namespace internal
+}  // namespace crashpad