summaryrefslogtreecommitdiff
path: root/sys/dev
diff options
context:
space:
mode:
authordarran <darran@NetBSD.org>2010-03-12 21:53:15 +0000
committerdarran <darran@NetBSD.org>2010-03-12 21:53:15 +0000
commitf6bf8007733aee8ad503c371794355334c9bdde2 (patch)
treeb764f3919d808f96974ec7d27a6e7bf65e1c5917 /sys/dev
parent38c72d335c0a214b4e0f41ad8cc13730d5c11ee9 (diff)
DTrace: Add the Function Boundary Trace (FBT) provider moduile. This
module instruments every function in the kernel with entry and exit probes. These probes are true zero-effect probes in that they don't exist in the code until they are enabled. The probes are enabled by directly patching the function entry and exit points to make jumps into the dtrace framework. This gives us over 29,000 trace points in the kernel.
Diffstat (limited to 'sys/dev')
0 files changed, 0 insertions, 0 deletions