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How to generate stackdump of a program on HP-UX

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Subject: How to generate stackdump of a program on HP-UX

Leo Lai

Feb 28, 2006 19:57:55 GMT

Hi,

On Solaris, it's easy to generate a stackdump of a program. I just execute pstack <pid>. Is there a similar way to do this on HP-UX? I want to write a script that generates period stackdumps of a C++ process without killing the process.

Thanks!

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Alain Tesserot

Feb 28, 2006 20:31:23 GMT 7 pts

In hpux the command is called getcore <pid>

The following link should get you started.
http://h21007.www2.hp.com/dspp/tech/tech_TechSoftwareDetailPage_IDX/1,1703,1662,00.html

Leo Lai

Mar 1, 2006 14:30:23 GMT N/A: Question Author

I couldn't get "getcore <pid>" to work. Are you talking about the getcore command in gdb? When I execute `help getcore` in gdb, it tells me the correct usage of getcore is: getcore [ <packcore_dir> ]. It doesn't look like it takes pid as an argument. Is there another getcore command that you're referring to?

James R. Ferguson This member has accumulated 80000 or more points

Mar 1, 2006 14:37:15 GMT 7 pts

Hi Leo:

If you are Itanium based, have a look at the manpages for 'U_STACK_TRACE(3X)' and 'unwind(5)'.

Regards!

...JRF...

Alex Glennie This member has accumulated 7500 or more points

Mar 1, 2006 14:40:19 GMT 4 pts

not sure what a stackdump is but bt in gdb aka backtrace maybe what you are after ?

Leo Lai

Mar 1, 2006 14:46:39 GMT N/A: Question Author

Thanks all, but a developer at my company has provided me with the simplest way. I will share it with you here:

> gdb $EXE -pid $PID -command /home2/devuser3/bin/dropStack.txt > $OUTPUTFILE

$EXE is the full path to the executable,
$PID is the pid
$OUTPUTFILE is where you want to redirect output to

The content of the dropStack.txt file is:
set height 0
thread apply all bt
detach
quit

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