Add -fobjc-trace to emit a call before and after each Objective-C message send

for hooking in code flow visualisation applications.  

llvm-svn: 154321

1 files changed, 3 insertions, 0 deletions

diff --git a/clang/lib/Frontend/CompilerInvocation.cpp b/clang/lib/Frontend/CompilerInvocation.cpp
index 02947c778c3..aae0b48e75e 100644
--- a/clang/lib/Frontend/CompilerInvocation.cpp
+++ b/clang/lib/Frontend/CompilerInvocation.cpp
@@ -249,6 +249,8 @@ static void CodeGenOptsToArgs(const CodeGenOptions &Opts, ToArgsList &Res) {
     Res.push_back("-mconstructor-aliases");
   if (Opts.ObjCAutoRefCountExceptions)
     Res.push_back("-fobjc-arc-eh");
+  if (Opts.ObjCTrace)
+    Res.push_back("-fobjc-trace");
   if (!Opts.DebugPass.empty()) {
     Res.push_back("-mdebug-pass", Opts.DebugPass);
   }
@@ -1109,6 +1111,7 @@ static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK,
 
   Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose);
   Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions);
+  Opts.ObjCTrace = Args.hasArg(OPT_fobjc_trace);
   Opts.ObjCRuntimeHasARC = Args.hasArg(OPT_fobjc_runtime_has_arc);
   Opts.ObjCRuntimeHasTerminate = Args.hasArg(OPT_fobjc_runtime_has_terminate);
   Opts.CUDAIsDevice = Args.hasArg(OPT_fcuda_is_device);