commit ca54a7b7a6d7d04a2d02966c41c7f371dea8edfb
author Oliver Nguyen <olivernguyen@google.com> Mon Nov 02 14:08:07 2020 -0800
committer Oliver Nguyen <olivernguyen@google.com> Wed Nov 11 14:55:58 2020 -0800
tree a0757df9678569d1dfddfb970b5c814f39d46564
parent bcf87898d7cf86511c91f2e122723b1b5ad8841e

Create a pool of 20 measurement files per library for coverage.

Reduces disk space usage for commonly used libraries by merging coverage
data across processes.

Bug: 171338125
Test: Forrest run of coverage tests
Change-Id: I2b9e94871fc5d66971c5b7e725b296bcd721ccf2

rootdir/Android.mk

diff --git a/rootdir/Android.mk b/rootdir/Android.mk
index 2bceb75..c4c8768 100644
--- a/rootdir/Android.mk
+++ b/rootdir/Android.mk
@@ -69,7 +69,7 @@
 
 EXPORT_GLOBAL_CLANG_COVERAGE_OPTIONS :=
 ifeq ($(CLANG_COVERAGE),true)
-  EXPORT_GLOBAL_CLANG_COVERAGE_OPTIONS := export LLVM_PROFILE_FILE /data/misc/trace/clang-%p-%m.profraw
+  EXPORT_GLOBAL_CLANG_COVERAGE_OPTIONS := export LLVM_PROFILE_FILE /data/misc/trace/clang-%20m.profraw
 endif
 
 # Put it here instead of in init.rc module definition,