commit 88b9d89098a2556f39a104ffe389f38d2ecfc3a6
author Nicolas Geoffray <ngeoffray@google.com> Thu Mar 30 17:56:24 2023 +0100
committer Nicolas Geoffray <ngeoffray@google.com> Tue Apr 04 09:39:11 2023 +0000
tree c805ad19f2ef3d12cba49da4c77085527f8e3a29
parent 41c3de26503b7e9ff8cd3dd480cf12a8cca8af83

Add trace points for class loading.

To augment traces and debug potential class loading hotspots.

Test: m
Change-Id: Iefb33e90e21ee1c597f6e4accd4cca83245fbd6e

runtime/class_linker.cc

diff --git a/runtime/class_linker.cc b/runtime/class_linker.cc
index da7b845..cdd07f6 100644
--- a/runtime/class_linker.cc
+++ b/runtime/class_linker.cc
@@ -3351,6 +3351,7 @@
                                                Handle<mirror::ClassLoader> class_loader,
                                                const DexFile& dex_file,
                                                const dex::ClassDef& dex_class_def) {
+  ScopedTrace trace([&]() { return android::base::StringPrintf("Defining %s", descriptor); });
   ScopedDefiningClass sdc(self);
   StackHandleScope<3> hs(self);
   metrics::AutoTimer timer{GetMetrics()->ClassLoadingTotalTime()};