tree 07cd2ba3dcd98ec4bff361f6dae4b6efebdc2e8d
parent 634ea28f78c4a138e6a1de54eae8696095422415
author buzbee <buzbee@google.com> 1344982197 -0700
committer buzbee <buzbee@google.com> 1344985472 -0700

Callee-save frame fix

Previously, the callee-frame stubs tried to be a little too efficient
in stack usage by re-using the storage allocated for the Method* to pass
an argument.  Unfortunately, if the compiler decided to do a tail-call
optimization on the called routine, it could end up re-using that same
slot for outgoing arguments (thus clobbering the Method*, and breaking
a subsequent stack crawl).

This CL fixes the problem by not re-using the Method* slot (at the cost
of a few extra instructions and 16 bytes of stack).

Change-Id: Ibce43ed84f81a8e332c2e77674e355c338efaaf0