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Oracle Solaris Dynamic Tracing Guide     Oracle Solaris 11 Information Library
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Document Information


1.  About DTrace

2.  D Programming Language

3.  Aggregations

4.  Actions and Subroutines

5.  Buffers and Buffering

6.  Output Formatting

7.  Speculative Tracing

8.  dtrace(1M) Utility

9.  Scripting

10.  Options and Tunables

11.  Providers

12.  User Process Tracing

13.  Statically Defined Tracing for User Applications

14.  Security

15.  Anonymous Tracing

16.  Postmortem Tracing

17.  Performance Considerations

18.  Stability

Stability Levels

Dependency Classes

Interface Attributes

USDT Interfaces

Stability Computations and Reports

Stability Enforcement

19.  Translators

20.  Versioning

Stability Enforcement

When developing a DTrace script or layered tool, you may wish to identify the specific source of stability issues or ensure that your program has a desired set of stability attributes. You can use the dtrace -x amin=_attributes_ option to force the D compiler to produce an error when any attributes computation results in a triplet of attributes less than the minimum values you specify on the command-line. The following example demonstrates the use of -x amin using a snippet of D program source. Notice that attributes are specified using three labels delimited by / in the usual order.

# dtrace -x amin=Evolving/Evolving/Common \
    -ev -n dtrace:::BEGIN'{trace(curthread->t_procp);}'
dtrace: invalid probe specifier dtrace:::BEGIN{trace(curthread->t_procp);}: \
    in action list: attributes for scalar curthread (Stable/Private/Common) \
    are less than predefined minimum