win: Implement exception snapshot

snapshot/win/thread_snapshot_win.cc

 // Copyright 2015 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/win/thread_snapshot_win.h"
 
 #include "base/logging.h"
+#include "snapshot/win/cpu_context_win.h"
 #include "snapshot/win/process_reader_win.h"
 
 namespace crashpad {
 namespace internal {
 
-namespace {
-
-void InitializeX64Context(const CONTEXT& context,
-                          CPUContextX86_64* out) {
-  out->rax = context.Rax;
-  out->rbx = context.Rbx;
-  out->rcx = context.Rcx;
-  out->rdx = context.Rdx;
-  out->rdi = context.Rdi;
-  out->rsi = context.Rsi;
-  out->rbp = context.Rbp;
-  out->rsp = context.Rsp;
-  out->r8 = context.R8;
-  out->r9 = context.R9;
-  out->r10 = context.R10;
-  out->r11 = context.R11;
-  out->r12 = context.R12;
-  out->r13 = context.R13;
-  out->r14 = context.R14;
-  out->r15 = context.R15;
-  out->rip = context.Rip;
-  out->rflags = context.EFlags;
-  out->cs = context.SegCs;
-  out->fs = context.SegFs;
-  out->gs = context.SegGs;
-
-  out->dr0 = context.Dr0;
-  out->dr1 = context.Dr1;
-  out->dr2 = context.Dr2;
-  out->dr3 = context.Dr3;
-  // DR4 and DR5 are obsolete synonyms for DR6 and DR7, see
-  // http://en.wikipedia.org/wiki/X86_debug_register.
-  out->dr4 = context.Dr6;
-  out->dr5 = context.Dr7;
-  out->dr6 = context.Dr6;
-  out->dr7 = context.Dr7;
-
-  static_assert(sizeof(out->fxsave) == sizeof(context.FltSave),
-                "types must be equivalent");
-  memcpy(&out->fxsave, &context.FltSave.ControlWord, sizeof(out->fxsave));
-}
-
-void InitializeX86Context(const CONTEXT& context,
-                          CPUContextX86* out) {
-  CHECK(false) << "TODO(scottmg) InitializeX86Context()";
-}
-
-}  // namespace
-
 ThreadSnapshotWin::ThreadSnapshotWin()
     : ThreadSnapshot(), context_(), stack_(), thread_(), initialized_() {
 }
 
 ThreadSnapshotWin::~ThreadSnapshotWin() {
 }
 
 bool ThreadSnapshotWin::Initialize(
     ProcessReaderWin* process_reader,
     const ProcessReaderWin::Thread& process_reader_thread) {
@@ skipping 44 matching lines @@
   return thread_.priority;
 }
 
 uint64_t ThreadSnapshotWin::ThreadSpecificDataAddress() const {
   INITIALIZATION_STATE_DCHECK_VALID(initialized_);
   return thread_.teb;
 }
 
 }  // namespace internal
 }  // namespace crashpad