Hi -
For that property, want to avoid embedding some project name in any kind
of interface, even an "unpublished" one, maybe "-Dsa.portable" for the
portable serviceability agent?
Thanks
Kevin
On 08/05/12 12:11, Staffan Larsen wrote:
The Serviceability Agent currently has an outage on Mac OS X compared
to other platforms in that we cannot read core files. We plan to
address this for 7u6 by incorporating code from a separate tool called
"kjdb" developed at Oracle. Kjdb is a cross-platform core-file
debugger written completely in Java that currently works on ELF
(solaris, linux) and Mach-O (mac) core files. Since it is written in
Java it can read core files from a different system than the system
you are running kjdb on, which is very useful.
The alternative to incorporating the kjdb technology would have been
to implement this in C as is done for the other platforms, but reusing
existing code saves us some trouble. The kjdb debugger backend will
automatically be enabled when you are opening a Mach-O core file (or
if you explicitly set the -Duse.kjdb property when starting SA).
The risks with this is that this is a large addition of relatively new
code to SA (around 100 files). It also means that debugging a live
process or a core file on OS X will use different debugger backends
which may have different behavior and bugs.
This change also adds a basic test that creates a core file and uses
SA to print the thread dumps in the core. This test runs on all
platforms, not just Mac OS X. Other than that test, some level of
manual testing has been done with various core files.
Please see the webrev at:
http://cr.openjdk.java.net/~sla/kjdb/webrev.01/
<http://cr.openjdk.java.net/%7Esla/kjdb/webrev.01/>
There are quite a number of added files in this webrev, so it's
probably best to concentrate on the changes in the existing files.
Thanks,
/Staffan
