simpleperf: add --symdir option in report-sample command.
--symdir option is used to provide a directory containing files with
symbols. Mutliple --symdir options can be used to provide more than
one directories. For each symbol directory, simpleperf collects build
id for all elf files under it recursively. Then simpleperf can use
the collected build ids to find files with symbols.
Also fix an error in GetCompleteProcessName().
Bug: 111687223
Test: run simpleperf_unit_test.
Change-Id: Ieac5ebf7451ae85ca15c3eae37bac3c89615580b
7 files changed