Lines Matching full:probe

81 When a DTrace probe corresponding to a given trace point is enabled, threads
82 that execute the trace point will call a handler and cause the probe to fire.
84 to the DTrace framework when an enabled probe fires.
86 Multiple trace points may correspond to a single DTrace probe, allowing
89 For instance, a DTrace probe corresponding to the arrival of an IP packet into
125 Once a probe has been defined, trace points for that probe may be added to
127 DTrace probe identifiers consist of a provider, module, function and name, all
130 probe definition.
131 Note that probes should not specify a module name: the module name of a probe is
142 character (dash) is wanted in a probe name,
145 (double underscore) in the probe
161 It is strongly recommended that probe definitions include a declaration of their
170 This is mainly useful when porting probe definitions from other operating
174 the arguments of a probe defined using these macros will have types which match
177 types in the probe definition.
179 native argument types in the probe definition, and thus the native type is
183 scripts making use of the probe need not concern themselves with the underlying
186 probe argument.
198 such: existing D scripts may be broken if a probe is renamed or its arguments
226 The following probe definition will create a DTrace probe called
237 This particular probe would take a single argument: a pointer to the struct
239 Note that the module name of this probe is not specified.
241 Consider a DTrace probe which fires when the network stack receives an IP
243 Such a probe would be defined by multiple tracepoints:
269 In particular, the probe should fire when the kernel receives either an IPv4
272 Consider the ICMP probe discussed above.
299 Then the FreeBSD probe above can be defined with:
323 macros allow the module and function names of a probe to be specified as part of
324 a probe definition.
327 name of a probe should match the name of the module in which its defined.
329 will set the module name properly if it is left unspecified in the probe