commit 61a1b988fd0ff47283c1eaed706d96cf9b6b852e
author Yi Kong <yikong@google.com> Thu Jan 30 21:15:12 2020 +0800
committer Yi Kong <yikong@google.com> Thu Jan 30 21:15:12 2020 +0800
tree a191057b148f17430899638c61f372d054befab1
parent 041ac6f2ce8c4807596e6369cca643443019b9f0

Add -fdebug-info-for-profiling flag to emit more debug info for sampling pgo

Test: m
Bug: 79161490
Change-Id: I25cfbf78b27d653286dc7f956743f8855b852b35

cc/pgo.go

diff --git a/cc/pgo.go b/cc/pgo.go
index e341d03..6c39d83 100644
--- a/cc/pgo.go
+++ b/cc/pgo.go
@@ -41,7 +41,7 @@
 var pgoProfileProjectsConfigKey = android.NewOnceKey("PgoProfileProjects")
 
 const profileInstrumentFlag = "-fprofile-generate=/data/local/tmp"
-const profileSamplingFlag = "-gline-tables-only"
+const profileSamplingFlag = "-gmlt -fdebug-info-for-profiling"
 const profileUseInstrumentFormat = "-fprofile-use=%s"
 const profileUseSamplingFormat = "-fprofile-sample-use=%s"