systemtap-steved - Unnamed repository; edit this file to name it for gitweb.

	Commit message (Collapse)	Author	Age	Files	Lines
*	Fix the edge-case of MAXTRYLOCK=0	Josh Stone	2010-03-11	1	-13/+17
\| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \|	We didn't really have good semantics for what is meant by MAXTRYLOCK=0, so when skipped.exp tried it, we ended up locking the variable and then reporting a skip without ever unlocking it. This is now cleaning up the semantics such that MAXTRYLOCK defines how many times we should loop if the lock is busy. Thus MAXTRYLOCK=0 means we try only once and fail immediately. The testcase was accidentally creating contention due to the broken unlock behavior. We now have to try a bit harder to create real contention, so some lengthy delays are inserted to hoard the lock. * runtime/probe_lock.h (stp_probe_lock): Fix the skip behavior. * testsuite/systemtap.base/skipped.exp: Add a big udelay.
*	Refactor probe locking into shared functions	Josh Stone	2009-10-21	1	-0/+68
	For scripts with thousands of probes, we save a fair amount of code-gen time in pass-4 by having the common locking code extracted into shared functions. * runtime/probe_lock.h (stp_lock_probe, stp_unlock_probe): New. * translate.cxx (c_unparser::emit_lock_decls): New, emits a static const array of locks needed for each probe. (c_unparser::emit_locks): Just call stp_lock_probe. (c_unparser::emit_unlocks): Just call stp_unlock_probe.