[compiler-rt] a7538fe - [dfsan] Comment out ChainOrigin temporarily

[Jianzhou Zhao via llvm-commits]

Author: Jianzhou Zhao
Date: 2021-02-12T18:13:24Z
New Revision: a7538fee3a0256a8891e746823f7b0f0ade84e62

URL: https://github.com/llvm/llvm-project/commit/a7538fee3a0256a8891e746823f7b0f0ade84e62
DIFF: https://github.com/llvm/llvm-project/commit/a7538fee3a0256a8891e746823f7b0f0ade84e62.diff

LOG: [dfsan] Comment out ChainOrigin temporarily

It was added by D96160, will be used by D96564.
Some OS got errors if it is not used.
Comment it out for the time being.

Added: 
    

Modified: 
    compiler-rt/lib/dfsan/dfsan.cpp

Removed: 
    


################################################################################
diff  --git a/compiler-rt/lib/dfsan/dfsan.cpp b/compiler-rt/lib/dfsan/dfsan.cpp
index 7abdf68e48b9..748bd619b417 100644
--- a/compiler-rt/lib/dfsan/dfsan.cpp
+++ b/compiler-rt/lib/dfsan/dfsan.cpp
@@ -304,6 +304,7 @@ dfsan_label dfsan_create_label(const char *desc, void *userdata) {
     stack.Print();                      \
   }
 
+/*
 static u32 ChainOrigin(u32 id, StackTrace *stack, bool from_init = false) {
   // StackDepot is not async signal safe. Do not create new chains in a signal
   // handler.
@@ -326,6 +327,7 @@ static u32 ChainOrigin(u32 id, StackTrace *stack, bool from_init = false) {
   Origin chained = Origin::CreateChainedOrigin(o, stack);
   return chained.raw_id();
 }
+*/
 
 static void WriteShadowIfDifferent(dfsan_label label, uptr shadow_addr,
                                    uptr size) {