[dfsan] Comment out ChainOrigin temporarily

stephan-yichao-zhao · stephan-yichao-zhao · commit a7538fee3a02 · 2021-02-12T18:13:24.000Z
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.
diff --git 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) {

Original file line number	Diff line number	Diff line change
`@@ -304,6 +304,7 @@ dfsan_label dfsan_create_label(const char desc, void userdata) {`
`304`	`304`	`stack.Print(); \`
`305`	`305`	`}`
`306`	`306`
	`307`	`+/*`
`307`	`308`	`static u32 ChainOrigin(u32 id, StackTrace *stack, bool from_init = false) {`
`308`	`309`	`// StackDepot is not async signal safe. Do not create new chains in a signal`
`309`	`310`	`// handler.`
`@@ -326,6 +327,7 @@ static u32 ChainOrigin(u32 id, StackTrace *stack, bool from_init = false) {`
`326`	`327`	`Origin chained = Origin::CreateChainedOrigin(o, stack);`
`327`	`328`	`return chained.raw_id();`
`328`	`329`	`}`
	`330`	`+*/`
`329`	`331`
`330`	`332`	`static void WriteShadowIfDifferent(dfsan_label label, uptr shadow_addr,`
`331`	`333`	`uptr size) {`