pchome / perf2afdo

Parts from google/autofdo and google/perf_data_converter:quipper

perf2afdo

Parts from google/autofdo and google/perf_data_converter:quipper

See https://github.com/google/autofdo and https://github.com/google/perf_data_converter/tree/master/src/quipper

WIP! For use in Gentoo

Original sources mostly unchanged, dependencies pressent in Gentoo portage tree are skipped, tests are skipped

• quipper state : 4140ba0c070936db508c0688a9a1c63b6854f0ed
• autofdo state : db9ca300dd8fa367136fe4a34cc10b8668ded256

The only patch currently required (will be applied by ebuild):

--- a/sample_reader.cc
+++ b/sample_reader.cc
@@ -212,7 +212,7 @@
   // focus_binary_re_ is used to match the binary name with the samples.
   for (const auto &event : parser.parsed_events()) {
     if (!event.event_ptr ||
-        event.event_ptr->header().type() != PERF_RECORD_SAMPLE) {
+        event.event_ptr->header().type() != quipper::perf_event_type::PERF_RECORD_SAMPLE) {
       continue;
     }
     if (MatchBinary(event.dso_and_offset.dso_name(), focus_binary)) {

Build manually

# First: apply patch for sample_reader.cc
# Next: use following commands
meson --buildtype="release" --prefix /tmp/perf2afdo /tmp/perf2afdo.x86_64
cd /tmp/perf2afdo.x86_64
# optional step (see "meson configure" command):
#meson configure -Dcpp_args="-fwhole-program"
ninja -j4 install