From 7ae4b6de1d29b544f4a35bbf01cf5b398de89f4c Mon Sep 17 00:00:00 2001
From: Zachary Turner <zturner@google.com>
Date: Thu, 18 Dec 2014 18:21:33 +0000
Subject: [PATCH] Only compile RegisterContextWindows_x86.cpp for x86 host
 architecture.

This fixes compilation failures in the 64-bit build of LLDB on Windows.

Patch by Aidan Dodds

Differential Revision: http://reviews.llvm.org/D6704

llvm-svn: 224528
---
 lldb/source/Host/windows/HostThreadWindows.cpp          | 10 +++++++++-
 lldb/source/Plugins/Process/Windows/CMakeLists.txt      | 17 +++++++++++++++--
 .../Plugins/Process/Windows/TargetThreadWindows.cpp     | 16 ++++++++++++++--
 .../Windows/{ => x86}/RegisterContextWindows_x86.cpp    |  0
 .../Windows/{ => x86}/RegisterContextWindows_x86.h      |  0
 5 files changed, 38 insertions(+), 5 deletions(-)
 rename lldb/source/Plugins/Process/Windows/{ => x86}/RegisterContextWindows_x86.cpp (100%)
 rename lldb/source/Plugins/Process/Windows/{ => x86}/RegisterContextWindows_x86.h (100%)

diff --git a/lldb/source/Host/windows/HostThreadWindows.cpp b/lldb/source/Host/windows/HostThreadWindows.cpp
index 2597fa2..d59064f 100644
--- a/lldb/source/Host/windows/HostThreadWindows.cpp
+++ b/lldb/source/Host/windows/HostThreadWindows.cpp
@@ -17,6 +17,14 @@
 using namespace lldb;
 using namespace lldb_private;
 
+namespace
+{
+void __stdcall ExitThreadProxy(ULONG_PTR dwExitCode)
+{
+    ::ExitThread(dwExitCode);
+}
+}
+
 HostThreadWindows::HostThreadWindows()
     : HostNativeThreadBase()
     , m_owns_handle(true)
@@ -69,7 +77,7 @@ HostThreadWindows::Cancel()
 {
     Error error;
 
-    DWORD result = ::QueueUserAPC(::ExitThread, m_thread, 0);
+    DWORD result = ::QueueUserAPC(::ExitThreadProxy, m_thread, 0);
     error.SetError(result, eErrorTypeWin32);
     return error;
 }
diff --git a/lldb/source/Plugins/Process/Windows/CMakeLists.txt b/lldb/source/Plugins/Process/Windows/CMakeLists.txt
index e0110e3..dce4560 100644
--- a/lldb/source/Plugins/Process/Windows/CMakeLists.txt
+++ b/lldb/source/Plugins/Process/Windows/CMakeLists.txt
@@ -1,14 +1,27 @@
 set(LLVM_NO_RTTI 1)
 
+macro(add_process_windows_subdirectory group)
+  list(APPEND PROC_WINDOWS_SOURCES ${ARGN})
+  source_group(${group} FILES ${ARGN})
+endmacro()
+
 include_directories(.)
 include_directories(../Utility)
 
-add_lldb_library(lldbPluginProcessWindows
+add_process_windows_subdirectory(common
   DebuggerThread.cpp
   DynamicLoaderWindows.cpp
   LocalDebugDelegate.cpp
   ProcessWindows.cpp
-  RegisterContextWindows_x86.cpp
   TargetThreadWindows.cpp
   )
 
+if (CMAKE_SIZEOF_VOID_P EQUAL 4)
+  add_process_windows_subdirectory(x86
+  x86/RegisterContextWindows_x86.cpp
+  )
+endif()
+
+add_lldb_library(lldbPluginProcessWindows
+  ${PROC_WINDOWS_SOURCES}
+  )
diff --git a/lldb/source/Plugins/Process/Windows/TargetThreadWindows.cpp b/lldb/source/Plugins/Process/Windows/TargetThreadWindows.cpp
index 1c33f21..2f5ddc9 100644
--- a/lldb/source/Plugins/Process/Windows/TargetThreadWindows.cpp
+++ b/lldb/source/Plugins/Process/Windows/TargetThreadWindows.cpp
@@ -15,9 +15,12 @@
 
 #include "TargetThreadWindows.h"
 #include "ProcessWindows.h"
-#include "RegisterContextWindows_x86.h"
 #include "UnwindLLDB.h"
 
+#if !defined(_WIN64)
+#include "x86/RegisterContextWindows_x86.h"
+#endif
+
 using namespace lldb;
 using namespace lldb_private;
 
@@ -72,10 +75,19 @@ TargetThreadWindows::CreateRegisterContextForFrameIndex(uint32_t idx)
         switch (arch.GetMachine())
         {
             case llvm::Triple::x86:
+#if defined(_WIN64)
+                // FIXME: This is a Wow64 process, create a RegisterContextWindows_Wow64
+#else
                 m_reg_context_sp.reset(new RegisterContextWindows_x86(*this, idx));
+#endif
                 break;
+            case llvm::Triple::x86_64:
+#if defined(_WIN64)
+                // FIXME: This is a 64-bit process, create a RegisterContextWindows_x86_64
+#else
+                // LLDB is 32-bit, but the target process is 64-bit.  We probably can't debug this.
+#endif
             default:
-                // FIXME: Support x64 by creating a RegisterContextWindows_x86_64
                 break;
         }
     }
diff --git a/lldb/source/Plugins/Process/Windows/RegisterContextWindows_x86.cpp b/lldb/source/Plugins/Process/Windows/x86/RegisterContextWindows_x86.cpp
similarity index 100%
rename from lldb/source/Plugins/Process/Windows/RegisterContextWindows_x86.cpp
rename to lldb/source/Plugins/Process/Windows/x86/RegisterContextWindows_x86.cpp
diff --git a/lldb/source/Plugins/Process/Windows/RegisterContextWindows_x86.h b/lldb/source/Plugins/Process/Windows/x86/RegisterContextWindows_x86.h
similarity index 100%
rename from lldb/source/Plugins/Process/Windows/RegisterContextWindows_x86.h
rename to lldb/source/Plugins/Process/Windows/x86/RegisterContextWindows_x86.h
-- 
2.7.4