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fixframe
2008 Feb 11
0
Project proposal for enhanced ustack/jstack
...ize and the virtual frame
information is encoded in the VM data structures, it just needs to be
retrieved and used.
** Our Proposal
We propose to add two new "well-known" helpers to the ustack/jstack
mechanism. The first we''re tentatively calling
"dtrace:helper:ustack:fixframe". The fixframe helper, if it exists,
would be invoked by dtrace from within dtrace_getufpstack() if it
encounters a frame it cannot parse (due to an invalid frame pointer
register, for instance). The fixframe helper, defined by the
application being traced, would return new values for t...