Re: [PHP-DEV] Troubles with DL'ed module From: Sterling Hughes (sterling <email protected>)
Date: 04/30/01

On Mon, 30 Apr 2001, Andi Gutmans wrote:

> Your module is probably causing some memory corruption. The best way to
> debug it is building the module statically into PHP. You need to copy it to
> ext/your_module/ (assuming you have a standard config.m4).
> Then in php4/ run ./buildconf and you should see your module when you do
> ./configure --help.
> ./configure and compile PHP with your module statically (best is even as a
> CGI) and then you can really debug it and see if it's a problem with the
> build as a shared library or if you have some bugs.
>

also, configuring with --enable-debug often helps...

-Sterling

> Andi
>
> At 11:01 AM 4/30/2001 -0500, Brian Foddy wrote:
> >Andi Gutmans wrote:
> > >
> > > Did you compile with debug on or off?
> > > Please try without debug in both PHP and your module and let us know if
> > > something changes.
> > > Also can you try and load it via php.ini (extension=module.so) and not with
> > > dl().
> > >
> >
> >
> >I rebuilt php 4.0.4p1 with debug off, rebuilt my module with debug off,
> >and switched from using DL to the extension load in the php.ini.
> >Unfortunately I still get the same coredump at the same line, just
> >a different constant.
> >
> >As before I can step though it with the debugger and the address
> >it cores in is viewable and has data.
> >
> >My gut is telling me its a build problem. Some address not aligned
> >right or something. For example shouldn't the -KPIC have been
> >used in the build argument list to libtool?
> >
> >But yet, in a seperate install without my new module the
> >same version of php on the same machine is running in production
> >very stable.
> >
> >Any ideas?
> >Brian
> >
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