tree 2b40d18a733bf80e0a2ffcf9689448d1c53bcaaf
parent 99f599aecaf74363561fade10fdb836d438e12e1
author Yabin Cui <yabinc@google.com> 1721169144 -0700
committer Yabin Cui <yabinc@google.com> 1721174681 -0700

simpleperf: Support compressing init_map feature section

init_map section stores system wide mmap info, which can
be about 50MB. So compress it when -z is used.

Before the compression:
$ ./simpleperf record -e cs-etm --duration 1 -a
$ ./simpleperf dump | grep init_map
feature section for init_map: offset 41951616, size 66181976

After the compression:
$ ./simpleperf record -e cs-etm --duration 1 -a -z
$ ./simpleperf dump | grep init_map
feature section for init_map: offset 19630208, size 1987611

Bug: 343557442
Test: run simpleperf_unit_test
Change-Id: Ifcd9d86ee01f0b37fe95d288d8834bcd17b63429