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From Egor Pasko <egor.pa...@gmail.com>
Subject Re: [drlvm] How to debug the drlvm with gdb?
Date Fri, 20 Oct 2006 12:33:53 GMT
On the 0x208 day of Apache Harmony Gregory Shimansky wrote:
> Egor Pasko wrote:
> > to debug on linux you should export LD_LIBRARY_PATH for GDB:
> > export LD_LIBRARY_PATH=$jre/bin:$jre/bin/default
> > (you know what $jre is:)
> > (news is that tere should be no slashess at the end of each path, and no
> > soft links inside, surprize, surprize:)
> There is a useful trick discovered by Ivan Volosyuk. To get the
> correct LD_LIBRARY_PATH which wouldn't trigger process re-execing in
> the launcher (this breaks gdb and you won't be able to debug VM) just
> run some java program which doesn't finish immediately. Then take a
> look at /proc/`pidof java`/environ and copy LD_LIBRARY_PATH setting
> from it. This is the exact string which launcher uses when it re-exacs
> the process. If you copy it exactly to LD_LIBRARY_PATH setting
> launcher won't do exec.

good trick! I remember it (and hope for eliminating a need to use:)

> Last time I checked one of directories had to have '/' in the end. So
> when things like this change it is safer to use this trick and use the
> string which current launcher wants.

Egor Pasko, Intel Managed Runtime Division

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