From a3298f7790316322c60b7f2e618fb2ae01819a17 Mon Sep 17 00:00:00 2001
From: Pascal Bach <pascal.bach@siemens.com>
Date: Mon, 15 Sep 2014 15:46:43 +0200
Subject: [PATCH] VS: Teach VS >= 10 generator about Windows CE

When CMAKE_SYSTEM_NAME is 'WindowsCE':

* Set the Subsystem and EntryPointSymbol accordingly.
* When CMAKE_SYSTEM_VERSION is 8.0 (Windows CE 2013),
  select the CE800 toolset by default.
---
 Source/cmGlobalVisualStudio10Generator.cxx | 48 +++++++++++++++++++++-
 Source/cmGlobalVisualStudio10Generator.h   |  7 ++++
 Source/cmVisualStudio10TargetGenerator.cxx | 20 ++++++++-
 3 files changed, 72 insertions(+), 3 deletions(-)

diff --git a/Source/cmGlobalVisualStudio10Generator.cxx b/Source/cmGlobalVisualStudio10Generator.cxx
index e2d4645fa..e947c5488 100644
--- a/Source/cmGlobalVisualStudio10Generator.cxx
+++ b/Source/cmGlobalVisualStudio10Generator.cxx
@@ -97,6 +97,7 @@ cmGlobalVisualStudio10Generator::cmGlobalVisualStudio10Generator(
   this->ExpressEdition = cmSystemTools::ReadRegistryValue(
     "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VCExpress\\10.0\\Setup\\VC;"
     "ProductDir", vc10Express, cmSystemTools::KeyWOW64_32);
+  this->SystemIsWindowsCE = false;
   this->SystemIsWindowsPhone = false;
   this->SystemIsWindowsStore = false;
   this->MSBuildCommandInitialized = false;
@@ -152,6 +153,16 @@ bool
 cmGlobalVisualStudio10Generator::SetGeneratorToolset(std::string const& ts,
                                                      cmMakefile* mf)
 {
+  if (this->SystemIsWindowsCE && ts.empty() &&
+      this->DefaultPlatformToolset.empty())
+    {
+    cmOStringStream e;
+    e << this->GetName() << " Windows CE version '" << this->SystemVersion
+      << "' requires CMAKE_GENERATOR_TOOLSET to be set.";
+    mf->IssueMessage(cmake::FATAL_ERROR, e.str());
+    return false;
+    }
+
   this->GeneratorToolset = ts;
   if(const char* toolset = this->GetPlatformToolset())
     {
@@ -163,7 +174,15 @@ cmGlobalVisualStudio10Generator::SetGeneratorToolset(std::string const& ts,
 //----------------------------------------------------------------------------
 bool cmGlobalVisualStudio10Generator::InitializeSystem(cmMakefile* mf)
 {
-  if(this->SystemName == "WindowsPhone")
+  if (this->SystemName == "WindowsCE")
+    {
+    this->SystemIsWindowsCE = true;
+    if (!this->InitializeWindowsCE(mf))
+      {
+      return false;
+      }
+    }
+  else if(this->SystemName == "WindowsPhone")
     {
     this->SystemIsWindowsPhone = true;
     if(!this->InitializeWindowsPhone(mf))
@@ -182,6 +201,23 @@ bool cmGlobalVisualStudio10Generator::InitializeSystem(cmMakefile* mf)
   return true;
 }
 
+//----------------------------------------------------------------------------
+bool cmGlobalVisualStudio10Generator::InitializeWindowsCE(cmMakefile* mf)
+{
+  if (this->DefaultPlatformName != "Win32")
+    {
+    cmOStringStream e;
+    e << "CMAKE_SYSTEM_NAME is 'WindowsCE' but CMAKE_GENERATOR "
+      << "specifies a platform too: '" << this->GetName() << "'";
+    mf->IssueMessage(cmake::FATAL_ERROR, e.str());
+    return false;
+    }
+
+  this->DefaultPlatformToolset = this->SelectWindowsCEToolset();
+
+  return true;
+}
+
 //----------------------------------------------------------------------------
 bool cmGlobalVisualStudio10Generator::InitializeWindowsPhone(cmMakefile* mf)
 {
@@ -200,6 +236,16 @@ bool cmGlobalVisualStudio10Generator::InitializeWindowsStore(cmMakefile* mf)
   return false;
 }
 
+//----------------------------------------------------------------------------
+std::string cmGlobalVisualStudio10Generator::SelectWindowsCEToolset() const
+{
+  if (this->SystemVersion == "8.0")
+    {
+    return "CE800";
+    }
+  return "";
+}
+
 //----------------------------------------------------------------------------
 void cmGlobalVisualStudio10Generator::WriteSLNHeader(std::ostream& fout)
 {
diff --git a/Source/cmGlobalVisualStudio10Generator.h b/Source/cmGlobalVisualStudio10Generator.h
index f1ff9a462..c02d204e4 100644
--- a/Source/cmGlobalVisualStudio10Generator.h
+++ b/Source/cmGlobalVisualStudio10Generator.h
@@ -68,6 +68,10 @@ public:
   /** Return the CMAKE_SYSTEM_VERSION.  */
   std::string const& GetSystemVersion() const { return this->SystemVersion; }
 
+  /** Return true if building for WindowsCE */
+  bool TargetsWindowsCE() const
+    { return this->SystemIsWindowsCE; }
+
   /** Return true if building for WindowsPhone */
   bool TargetsWindowsPhone() const
     { return this->SystemIsWindowsPhone; }
@@ -105,8 +109,10 @@ public:
 protected:
   virtual void Generate();
   virtual bool InitializeSystem(cmMakefile* mf);
+  virtual bool InitializeWindowsCE(cmMakefile* mf);
   virtual bool InitializeWindowsPhone(cmMakefile* mf);
   virtual bool InitializeWindowsStore(cmMakefile* mf);
+  virtual std::string SelectWindowsCEToolset() const;
   virtual std::string SelectWindowsPhoneToolset() const { return ""; }
   virtual std::string SelectWindowsStoreToolset() const { return ""; }
 
@@ -118,6 +124,7 @@ protected:
   std::string DefaultPlatformToolset;
   std::string SystemName;
   std::string SystemVersion;
+  bool SystemIsWindowsCE;
   bool SystemIsWindowsPhone;
   bool SystemIsWindowsStore;
   bool ExpressEdition;
diff --git a/Source/cmVisualStudio10TargetGenerator.cxx b/Source/cmVisualStudio10TargetGenerator.cxx
index c525b7ce1..4b5c83f68 100644
--- a/Source/cmVisualStudio10TargetGenerator.cxx
+++ b/Source/cmVisualStudio10TargetGenerator.cxx
@@ -2115,11 +2115,27 @@ cmVisualStudio10TargetGenerator::ComputeLinkOptions(std::string const& config)
 
     if ( this->Target->GetPropertyAsBool("WIN32_EXECUTABLE") )
       {
-      linkOptions.AddFlag("SubSystem", "Windows");
+      if (this->GlobalGenerator->TargetsWindowsCE())
+        {
+        linkOptions.AddFlag("SubSystem", "WindowsCE");
+        linkOptions.AddFlag("EntryPointSymbol", "WinMainCRTStartup");
+        }
+      else
+        {
+        linkOptions.AddFlag("SubSystem", "Windows");
+        }
       }
     else
       {
-      linkOptions.AddFlag("SubSystem", "Console");
+      if (this->GlobalGenerator->TargetsWindowsCE())
+        {
+        linkOptions.AddFlag("SubSystem", "WindowsCE");
+        linkOptions.AddFlag("EntryPointSymbol", "mainACRTStartup");
+        }
+      else
+        {
+        linkOptions.AddFlag("SubSystem", "Console");
+        };
       }
 
     if(const char* stackVal =