tree 27ca0bccbc376f530c83906b3fac670426d6008e
parent ef4b3bb4dc2c1c5b0b29209f6d3ea2126be3be0d
author Bill Buzbee <buzbee@google.com> 1257892292 -0800
committer Bill Buzbee <buzbee@google.com> 1257893798 -0800

Jit stress mode: translate everything we can and self verify.

This represents a general clean-up of some existing command-line
options: -Xjitthreshold:num and -Xjitblocking.  The jit threshold
controls how quickly we treat a Dalvik address as a potential trace
head.  Normally this is set around 200 (and the range is 0..255, where
0 is in effect 256 and 1 means begin trace selection on first visit).

-Xjitblocking forces the system to pause execution whenever a translation
request is made and resume when that translation is complete.  Normally
the system make a request but continues execution (to avoid jitter).

Additionally, if WITH_SELF_VERIFICATION is defined, we force blocking
to be true, and set the threshold to 1.  And finally, we treat
threshold==1 as a special case and disable the 2nd-level trace-building
filter - which causes the system to immediately start trace selection.