tree 885ac53534860a477ec4c99c27e1c3f847edbd86
parent fe98a0ff85454b68f5af3940458bdf7aa962670e
author Yabin Cui <yabinc@google.com> 1614906841 -0800
committer Yabin Cui <yabinc@google.com> 1614970400 -0800

simpleperf: refactor debug_unwind cmd.

debug_unwind cmd was used to unwind perf.data generated by --no-unwind,
and generate a new perf.data with UnwindingResultRecord.
To prepare supporting debug unwinding by --keep-failed-unwinding-debug-info,
this patch refactors debug_unwind cmd as below:
1. Add --unwind-sample for unwinding samples. Move this function to
SampleUnwinder class.
2. Change output format from perf.data to text, which is easier to use.

Bug: 181075274
Test: run simpleperf_unit_test
Change-Id: I9210e9c6da2a8978b42fa2226f0bb4d4bf771744