factor

Author	SHA1	Message	Date
Joe Groff	1089816b21	vm: release memory used by sampler vectors	2011-11-02 13:23:08 -07:00
Joe Groff	40bc8459db	vm: bottom_frame method for contexts ctx->callstack_bottom - 1 -- the fuck does that mean?!	2011-11-02 13:23:07 -07:00
Joe Groff	be5c7476d7	vm: don't allocate callstack samples on data heap Invoking a GC during a safepoint has some complications, so stuff the callstack samples in a vector instead.	2011-11-02 13:23:07 -07:00
Joe Groff	80fb7788d9	vm: groundwork for sampling profiler Set up the state necessary to collect samples. We still need to add GC support for walking the sample set, and the compiler needs to register GC roots before safepoints as well. We also need primitives to expose the data to Factor for reporting.	2011-11-02 13:23:06 -07:00