Mailing List Archive: mod_backhand.so: please recompile it with -DEAPI -- How?

mod_backhand.so: please recompile it with -DEAPI -- How?

Sep 10, 2003, 9:34 AM

Post #1 of 4 (2878 views)

Hello,

after compiling mod_backhand.so (1.2.2) and copying it to /usr/lib/apache
(1.3.20) I get this message in /var/log/httpd/error_log:

[warn] Loaded DSO /usr/lib/apache/mod_backhand.so uses plain Apache 1.3
API, this module might crash under EAPI! (please recompile it with -DEAPI)

And then a lot of segmentation faults for many pids:

child pid 1969 exit signal Segmentation fault (11)

So I tried the following:

export CFLAGS='-DEAPI'
./precompile (in backhand dir)
./configure .... (in apache dir)
make (in apache dir)

The new mod_backhand.so has exactly the same size as the old one and it does
not change anything. But some files in apache_1.3.20/src/modules/backhand
contain "EAPI":

Makefile:EXTRA_CFLAGS=-DEAPI `$(SRCDIR)/apaci`
config.status:s%@CFLAGS@%-DEAPI%g

Can anyone help?

Kind Regard

Thomas

mod_backhand.so: please recompile it with -DEAPI -- How? [ In reply to ]

jesus at omniti

Sep 10, 2003, 10:07 AM

Post #2 of 4 (2745 views)

Permalink

On Wednesday, Sep 10, 2003, at 12:34 US/Eastern, Thomas Buehren wrote:

> Hello,
>
> after compiling mod_backhand.so (1.2.2) and copying it to
> /usr/lib/apache
> (1.3.20) I get this message in /var/log/httpd/error_log:
>
> [warn] Loaded DSO /usr/lib/apache/mod_backhand.so uses plain Apache
> 1.3
> API, this module might crash under EAPI! (please recompile it with
> -DEAPI)
>
> And then a lot of segmentation faults for many pids:
>
> child pid 1969 exit signal Segmentation fault (11)
>
> So I tried the following:
>
> export CFLAGS='-DEAPI'
> ./precompile (in backhand dir)
> ./configure .... (in apache dir)
> make (in apache dir)
>
> The new mod_backhand.so has exactly the same size as the old one and
> it does
> not change anything. But some files in
> apache_1.3.20/src/modules/backhand
> contain "EAPI":
>
> Makefile:EXTRA_CFLAGS=-DEAPI `$(SRCDIR)/apaci`
> config.status:s%@CFLAGS@%-DEAPI%g
>
> Can anyone help?

The EAPI only extends the Apache module structure. So, if you use gcc
as your compiler, it should not matter. gcc will auto fill any
unspecified module elements with NULL. So, the segfaults shouldn't be
from that.

Try using apxs to compile mod_backhand.
Get you Apache ready to go without mod_backhand, compile and install
(and test).
Then in the backhand dir:
./configure --with-apxs=/path/to/apache/bin/apxs
make
make install

// Theo Schlossnagle
// Principal Engineer -- http://www.omniti.com/~jesus/
// Postal Engine -- http://www.postalengine.com/
// Ecelerity: fastest MTA on earth

mod_backhand.so: please recompile it with -DEAPI -- How? [ In reply to ]

buehren_backhand at peperoni

Sep 10, 2003, 10:33 AM

Post #3 of 4 (2754 views)

Permalink

Hello,

thank you very much for the fast reply. mod_backhand.so is now 75 bytes
larger. But the result is the same (please recompile with -DEAPI and
segmentations faults)

BTW: make install said:
./mkinstalldirs /usr/local/bin
./mkinstalldirs /usr/local/lib
./mkinstalldirs /usr/local/info
make: INSTALL@: Command not found
make: *** [install] Error 127

So I copied mod_backhand.so to /usr/lib/apache and issued the last command
of "make install" manually: apxs -i -A -n backhand backhand.so. This put #
signs before LoadModule / AddModule mod_backhand in my httpd.conf, and
apache did not recognize any Backhand command, so i removed the # to load
the module. (Should it have been loaded without that through apxs?)

Thomas

> -----Original Message-----
> From: backhand-users-admin@lists.backhand.org
> [mailto:backhand-users-admin@lists.backhand.org]On Behalf Of Theo
> Schlossnagle
> Sent: Wednesday, September 10, 2003 7:08 PM
> To: backhand-users@lists.backhand.org
> Cc: Theo Schlossnagle
> Subject: Re: [m_b_users] mod_backhand.so: please recompile it with
> -DEAPI -- How?
>
>
>
> On Wednesday, Sep 10, 2003, at 12:34 US/Eastern, Thomas Buehren wrote:
>
> > Hello,
> >
> > after compiling mod_backhand.so (1.2.2) and copying it to
> > /usr/lib/apache
> > (1.3.20) I get this message in /var/log/httpd/error_log:
> >
> > [warn] Loaded DSO /usr/lib/apache/mod_backhand.so uses plain Apache
> > 1.3
> > API, this module might crash under EAPI! (please recompile it with
> > -DEAPI)
> >
> > And then a lot of segmentation faults for many pids:
> >
> > child pid 1969 exit signal Segmentation fault (11)
> >
> > So I tried the following:
> >
> > export CFLAGS='-DEAPI'
> > ./precompile (in backhand dir)
> > ./configure .... (in apache dir)
> > make (in apache dir)
> >
> > The new mod_backhand.so has exactly the same size as the old one and
> > it does
> > not change anything. But some files in
> > apache_1.3.20/src/modules/backhand
> > contain "EAPI":
> >
> > Makefile:EXTRA_CFLAGS=-DEAPI `$(SRCDIR)/apaci`
> > config.status:s%@CFLAGS@%-DEAPI%g
> >
> > Can anyone help?
>
> The EAPI only extends the Apache module structure. So, if you use gcc
> as your compiler, it should not matter. gcc will auto fill any
> unspecified module elements with NULL. So, the segfaults shouldn't be
> from that.
>
> Try using apxs to compile mod_backhand.
> Get you Apache ready to go without mod_backhand, compile and install
> (and test).
> Then in the backhand dir:
> ./configure --with-apxs=/path/to/apache/bin/apxs
> make
> make install
>
>
> // Theo Schlossnagle
> // Principal Engineer -- http://www.omniti.com/~jesus/
> // Postal Engine -- http://www.postalengine.com/
> // Ecelerity: fastest MTA on earth
>
>
> _______________________________________________
> backhand-users mailing list
> backhand-users@lists.backhand.org
> http://lists.backhand.org/mailman/listinfo/backhand-users
>

mod_backhand.so: please recompile it with -DEAPI -- How? [ In reply to ]

buehren_backhand at peperoni

Sep 10, 2003, 11:09 AM

Post #4 of 4 (2730 views)

Permalink

BTW: It works with the pre-compiled mod_backhand.so from SUSE 7.3
But there seem to be some errors in that, and I would like to update to the
newest version (1.2.2 I hope)
Thomas

> -----Original Message-----
> From: Thomas Buehren [mailto:buehren_backhand@peperoni.de]
> Sent: Wednesday, September 10, 2003 7:34 PM
> To: backhand-users@lists.backhand.org
> Subject: RE: [m_b_users] mod_backhand.so: please recompile it with
> -DEAPI -- How?
>
>
> Hello,
>
> thank you very much for the fast reply. mod_backhand.so is now 75
> bytes larger. But the result is the same (please recompile with
> -DEAPI and segmentations faults)
>
> BTW: make install said:
> ./mkinstalldirs /usr/local/bin
> ./mkinstalldirs /usr/local/lib
> ./mkinstalldirs /usr/local/info
> make: INSTALL@: Command not found
> make: *** [install] Error 127
>
> So I copied mod_backhand.so to /usr/lib/apache and issued the
> last command of "make install" manually: apxs -i -A -n backhand
> backhand.so. This put # signs before LoadModule / AddModule
> mod_backhand in my httpd.conf, and apache did not recognize any
> Backhand command, so i removed the # to load the module. (Should
> it have been loaded without that through apxs?)
>
> Thomas
>
>
> > -----Original Message-----
> > From: backhand-users-admin@lists.backhand.org
> > [mailto:backhand-users-admin@lists.backhand.org]On Behalf Of Theo
> > Schlossnagle
> > Sent: Wednesday, September 10, 2003 7:08 PM
> > To: backhand-users@lists.backhand.org
> > Cc: Theo Schlossnagle
> > Subject: Re: [m_b_users] mod_backhand.so: please recompile it with
> > -DEAPI -- How?
> >
> >
> >
> > On Wednesday, Sep 10, 2003, at 12:34 US/Eastern, Thomas Buehren wrote:
> >
> > > Hello,
> > >
> > > after compiling mod_backhand.so (1.2.2) and copying it to
> > > /usr/lib/apache
> > > (1.3.20) I get this message in /var/log/httpd/error_log:
> > >
> > > [warn] Loaded DSO /usr/lib/apache/mod_backhand.so uses plain Apache
> > > 1.3
> > > API, this module might crash under EAPI! (please recompile it with
> > > -DEAPI)
> > >
> > > And then a lot of segmentation faults for many pids:
> > >
> > > child pid 1969 exit signal Segmentation fault (11)
> > >
> > > So I tried the following:
> > >
> > > export CFLAGS='-DEAPI'
> > > ./precompile (in backhand dir)
> > > ./configure .... (in apache dir)
> > > make (in apache dir)
> > >
> > > The new mod_backhand.so has exactly the same size as the old one and
> > > it does
> > > not change anything. But some files in
> > > apache_1.3.20/src/modules/backhand
> > > contain "EAPI":
> > >
> > > Makefile:EXTRA_CFLAGS=-DEAPI `$(SRCDIR)/apaci`
> > > config.status:s%@CFLAGS@%-DEAPI%g
> > >
> > > Can anyone help?
> >
> > The EAPI only extends the Apache module structure. So, if you use gcc
> > as your compiler, it should not matter. gcc will auto fill any
> > unspecified module elements with NULL. So, the segfaults shouldn't be
> > from that.
> >
> > Try using apxs to compile mod_backhand.
> > Get you Apache ready to go without mod_backhand, compile and install
> > (and test).
> > Then in the backhand dir:
> > ./configure --with-apxs=/path/to/apache/bin/apxs
> > make
> > make install
> >
> >
> > // Theo Schlossnagle
> > // Principal Engineer -- http://www.omniti.com/~jesus/
> > // Postal Engine -- http://www.postalengine.com/
> > // Ecelerity: fastest MTA on earth
> >
> >
> > _______________________________________________
> > backhand-users mailing list
> > backhand-users@lists.backhand.org
> > http://lists.backhand.org/mailman/listinfo/backhand-users
> >