Implement trampoline and handler for typed xray event tracing.

Summary:
Compiler-rt support first before defining the __xray_typedevent() lowering in
llvm. I'm looking for some early feedback before I touch much more code.

Reviewers: dberris

Subscribers: delcypher, llvm-commits, #sanitizers

Differential Revision: https://reviews.llvm.org/D43668

llvm-svn: 330218

1 files changed, 20 insertions, 0 deletions

diff --git a/compiler-rt/lib/xray/xray_fdr_logging_impl.h b/compiler-rt/lib/xray/xray_fdr_logging_impl.h
index ed0b5ca9022..3de310e9ca6 100644
--- a/compiler-rt/lib/xray/xray_fdr_logging_impl.h
+++ b/compiler-rt/lib/xray/xray_fdr_logging_impl.h
@@ -364,6 +364,16 @@ writeFunctionRecord(int FuncId, uint32_t TSCDelta,
     (void)Once;
     return;
   }
+  case XRayEntryType::TYPED_EVENT: {
+    static bool Once = [&] {
+      Report("Internal error: patched an XRay typed event call as a function; "
+             "func id = %d\n",
+             FuncId);
+      return true;
+    }();
+    (void)Once;
+    return;
+  }
   }
 
   std::memcpy(TLD.RecordPtr, &FuncRecord, sizeof(FunctionRecord));
@@ -689,6 +699,16 @@ inline void processFunctionHook(int32_t FuncId, XRayEntryType Entry,
     (void)Once;
     return;
   }
+  case XRayEntryType::TYPED_EVENT: {
+    static bool Once = [&] {
+      Report("Internal error: patched an XRay typed event call as a function; "
+             "func id = %d\n",
+             FuncId);
+      return true;
+    }();
+    (void)Once;
+    return;
+  }
   }
 
   writeFunctionRecord(FuncId, RecordTSCDelta, Entry);