| commit | 8245eb4ddd340769192febf597e80de96603d79d | [log] [tgz] |
|---|---|---|
| author | Andreas Gampe <agampe@google.com> | Thu Mar 17 21:27:19 2016 -0700 |
| committer | Andreas Gampe <agampe@google.com> | Fri Mar 18 10:56:03 2016 -0700 |
| tree | 300244b9c07c104741ad6ae38fc6f56b375de5fa | |
| parent | 02d97c3727a4c7fb611b73fac1a0ff19568de2c9 [diff] |
ART: Speed up stack guard page install Only the main thread doesn't have its stack mapped in under normal conditions. Reading each page is a lot of overhead and we should try to avoid it. Rewrite to first try a (non-fatal) protect. If the outcome is a success, finish. Otherwise do the stack mapping, and try again. Bug: 27718174 (cherry picked from commit 2c2d2a05eaf81d07df27418f8dfd68de6fa28ac1) Change-Id: I16b214567585ed2f09970f618ccdec7eed219fd3