mysql static probes demo

[Mark Wielaard]

Hi Stan,

On Fri, 2009-01-23 at 15:29 -0500, Stan Cox wrote:
> Here is a demo of mysql being probed.

Wow, that is a really great demo!
What mysql source did you take and how did you configure/build it?

I did have some troubles with the new python wrapper to get postgres to
compile. I believe you should handle the creating of the output filename
differently when there has been no -o option given (and not add
extensions when it is given). I am attaching my local change.

Still trying to figure out how to actually enable the postgres probes
with the new runtime support though. All I am getting is:
        pattern '/usr/bin/postgres' matches module '/usr/bin/postgres'
        focused on module '/usr/bin/postgres = [0x8047000-0x841bb60,
        bias 0x0] file /usr/lib/debug/usr/bin/postgres.debug ELF machine
        i?86 (code 3)
        focused on module '/usr/bin/postgres'
        semantic error: no match while resolving probe point
        process("/usr/bin/postgres").statement(1869379436)
        dwarf_builder releasing user dwflpp /usr/bin/postgres
        semantic error: no probes found
Need to look into why.

Cheers,

Mark
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