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2008 Feb 11
0
Project proposal for enhanced ustack/jstack
...he problem of inlined frames requires a two-pronged approach.
Firstly, dtrace needs a way to determine if there are virtual inlined
frames in a call frame, and then needs a way to display them. We
propose adding a additional variable value returned from ustack:helper
invocation, named ''vframe_count''. If the vframe_count is greater than
0, then that indicates that the frame in question contains multiple
virtual frames. DTrace would then loop over the vframe_count (likely to
some hard-set maximum limit) and invoke a new helper,
''dtrace:helper:ustack:vstack'', whi...