From 58a8c505edcc13a92fa0444310c632334dbfb0b9 Mon Sep 17 00:00:00 2001
From: Paul Durrant <paul.durrant@citrix.com>
Date: Mon, 29 Jan 2018 15:48:17 +0000
Subject: [PATCH] Do more optimization in release builds and add /Qspectre flag

Spectre mitigations apparently only work on optimized code.

Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
---
 vs2017/xenvif/xenvif.vcxproj | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/vs2017/xenvif/xenvif.vcxproj b/vs2017/xenvif/xenvif.vcxproj
index 6bbc569..1ce7438 100644
--- a/vs2017/xenvif/xenvif.vcxproj
+++ b/vs2017/xenvif/xenvif.vcxproj
@@ -22,8 +22,9 @@
     <ClCompile>
       <AdditionalIncludeDirectories>$(WindowsSdkDir)\include\km;..\..\include;..\..\include\xen;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>__MODULE__="XENVIF";POOL_NX_OPTIN=1;NT_PROCESSOR_GROUPS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
       <WarningLevel>EnableAllWarnings</WarningLevel>
-      <DisableSpecificWarnings>4464;4711;4548;4820;4668;4255;6001;6054;28196;30030;30029;%(DisableSpecificWarnings)</DisableSpecificWarnings>
+      <DisableSpecificWarnings>4464;4711;4770;4548;4820;4668;4255;6001;6054;28196;30030;30029;%(DisableSpecificWarnings)</DisableSpecificWarnings>
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
       <EnablePREfast>true</EnablePREfast>
     </ClCompile>
@@ -33,7 +34,7 @@
     <Link>
       <ImageHasSafeExceptionHandlers>false</ImageHasSafeExceptionHandlers>
       <AdditionalDependencies>$(DDK_LIB_PATH)/Rtlver.lib;$(DDK_LIB_PATH)/libcntpr.lib;$(DDK_LIB_PATH)/aux_klib.lib;$(DDK_LIB_PATH)/ksecdd.lib;$(DDK_LIB_PATH)/procgrp.lib;%(AdditionalDependencies)</AdditionalDependencies>
-      <EnableCOMDATFolding>false</EnableCOMDATFolding>
+      <LinkTimeCodeGeneration>UseLinkTimeCodeGeneration</LinkTimeCodeGeneration>
     </Link>
     <Inf>
       <SpecifyArchitecture>true</SpecifyArchitecture>
@@ -58,6 +59,13 @@
       <Architecture>amd64</Architecture>
     </Inf>
   </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)'=='Windows 8 Release'">
+    <ClCompile>
+      <FavorSizeOrSpeed>Speed</FavorSizeOrSpeed>
+      <WholeProgramOptimization>true</WholeProgramOptimization>
+      <AdditionalOptions>/Qspectre %(AdditionalOptions)</AdditionalOptions>
+    </ClCompile>
+  </ItemDefinitionGroup>
   <ItemGroup>
     <FilesToPackage Include="$(TargetPath)" />
     <FilesToPackage Include="$(OutDir)$(TargetName).pdb" />
-- 
2.39.5