TestGenerator: Add CROSSCOMPILING_EMULATOR support.

Prefix test commands with the CROSSCOMPILING_EMULATOR property
for target executables. This allows test suites to be run on the host
when crosscompiling.

1 files changed, 20 insertions, 1 deletions

diff --git a/Source/cmTestGenerator.cxx b/Source/cmTestGenerator.cxx
index f87a5353f0..add80fa688 100644
--- a/Source/cmTestGenerator.cxx
+++ b/Source/cmTestGenerator.cxx
@@ -82,11 +82,31 @@ void cmTestGenerator::GenerateScriptForConfig(std::ostream& os,
   // be translated.
   std::string exe = command[0];
   cmMakefile* mf = this->Test->GetMakefile();
+  cmLocalGenerator* lg = mf->GetLocalGenerator();
   cmTarget* target = mf->FindTargetToUse(exe);
   if(target && target->GetType() == cmTarget::EXECUTABLE)
     {
     // Use the target file on disk.
     exe = target->GetFullPath(config);
+
+    // Prepend with the emulator when cross compiling if required.
+    const char * emulator =
+      target->GetProperty("CROSSCOMPILING_EMULATOR");
+    if (emulator != 0)
+      {
+      std::vector<std::string> emulatorWithArgs;
+      cmSystemTools::ExpandListArgument(emulator, emulatorWithArgs);
+      std::string emulatorExe(emulatorWithArgs[0]);
+      cmSystemTools::ConvertToUnixSlashes(emulatorExe);
+      os << lg->EscapeForCMake(emulatorExe) << " ";
+      for(std::vector<std::string>::const_iterator ei =
+          emulatorWithArgs.begin()+1;
+          ei != emulatorWithArgs.end();
+          ++ei)
+        {
+        os << lg->EscapeForCMake(*ei) << " ";
+        }
+      }
     }
   else
     {
@@ -96,7 +116,6 @@ void cmTestGenerator::GenerateScriptForConfig(std::ostream& os,
     }
 
   // Generate the command line with full escapes.
-  cmLocalGenerator* lg = mf->GetLocalGenerator();
   os << lg->EscapeForCMake(exe);
   for(std::vector<std::string>::const_iterator ci = command.begin()+1;
       ci != command.end(); ++ci)