1fbt(7D)                             Devices                            fbt(7D)
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NAME

6       fbt - DTrace function boundary tracing provider
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DESCRIPTION

9       The  fbt  driver  is  a  DTrace  dynamic tracing provider that performs
10       dynamic instrumentation at function boundaries in the Solaris kernel.
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13       The function is the fundamental  unit  of  program  text.  In  a  well-
14       designed  system,  the  function  performs  a discrete and well-defined
15       operation on a specified object or series of like objects.  Most  func‐
16       tions  are  implemented by themselves calling functions on encapsulated
17       objects, but some functions —so-called "leaf functions"  —  are  imple‐
18       mented  without  making  further  function calls. The Function Boundary
19       Tracing fbt provider contains a mechanism for  instrumenting  the  vast
20       majority of functions in the kernel and offering the instrumentation as
21       a set of DTrace probes.
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24       The fbt driver is not a public interface and you access the  instrumen‐
25       tation  offered  by  this provider through DTrace. Refer to the Solaris
26       Dynamic Tracing Guide for a description of the public documented inter‐
27       faces  available  for the DTrace facility and the probes offered by the
28       fbt provider.
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ATTRIBUTES

31       See attributes(5) for a description of the following attributes:
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36       ┌─────────────────────────────┬─────────────────────────────┐
37       │      ATTRIBUTE TYPE         │      ATTRIBUTE VALUE        │
38       ├─────────────────────────────┼─────────────────────────────┤
39       │Availability                 │SUNWdtrp                     │
40       ├─────────────────────────────┼─────────────────────────────┤
41       │Interface Stability          │Private                      │
42       └─────────────────────────────┴─────────────────────────────┘
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SEE ALSO

45       dtrace(1M), attributes(5), dtrace(7D)
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48       Solaris Dynamic Tracing Guide
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52SunOS 5.11                        4 Sep 2003                           fbt(7D)
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