tree 25e41920b8a38d01ec904a2d1a1498c1364c07fb
parent 889e29aae6a7cbd3c6f8dae44f67e054e083a8b6
author David Srbecky <dsrbecky@google.com> 1544016246 +0000
committer David Srbecky <dsrbecky@google.com> 1544806058 +0000

Pack JIT mini-debug-infos together.

We currently produce one in-memory ELF file per JITed method,
which has significant overheads due to the ELF file headers.

Pack several of those files together regularly to save space.
Similarly, prune information about methods which were GCed.

This reduces the size of JIT mini-debug-info by factor of 10.
The final overhead is 5% to 10% relative to the JIT code size.

Test: ./art/test.py -b -r -t 137
Change-Id: Idfaff8ed9a209e871e815e527f24f36c63a57bbf