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From: "David E. Wheeler" <david@kineticode.com>
To: Philippe M. Chiasson <gozer@ectoplasm.org>
In-Reply-To: <481030D5.9030702@ectoplasm.org>
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Subject: Re: Bus Error with mod_perl 2.04
Date: Wed, 28 May 2008 21:54:26 -0700
References: <9EE60171-AE84-47B8-B72F-607AE4D3EB14@kineticode.com>
 <480EEB44.3050206@ectoplasm.org>
 <A3BB9804-FC28-4166-BCB7-C51BDF92A36E@kineticode.com>
 <A78BBC77-AD23-4AD2-BC1B-72094BF78592@kineticode.com>
 <DB01CB84-748E-4F92-9017-74A8ADFC6065@kineticode.com>
 <481030D5.9030702@ectoplasm.org>

On Apr 24, 2008, at 00:03, Philippe M. Chiasson wrote:

> Nah, the core file by itself is not exactly super usefull. You just =20=

> have
> to figure out how to get a debugging build. Also, I've tried to =20
> reproduce
> this on OS X/Apache 2.2.8 prefork/ Perl 5.10 without any luck.
>
> Can you post the exact details on how you built each of these ?
>
> For me, it goes something like:
>
> perl> ./Configure -des \
>  -Doptimize=3D-g \
>  -Dprefix=3D$HOME/opt/perl.org/perl/5.10.0/debug

For me:

perl-5.10.0> sh Configure -des \
  -Duseshrplib\
  -Dprefix=3D/usr/local/perl-5.10.0.d \
  -Doptimize=3D'-g'

> apache> CFLAGS=3D"-g" ./configure \
>  --with-included-apr \
>  --with-mpm=3Dprefork \
>  --enable-maintainer-mode \
>  --enable-modules=3Dall \
>  --neable-mods-shared=3Dmax \
>  --prefix=3D$HOME/opt/apache.org/httpd/2.2.8/prefork-debug

For me:

httpd-2.2.8>export CPPFLAGS=3D"-I/usr/local/include"
export LDFLAGS=3D"-L/usr/local/lib"
export CFLAGS=3D"-DAP_UNSAFE_ERROR_LOG_UNESCAPED -g"
./configure \
  --prefix=3D/usr/local/apache2 \
  --with-mpm=3Dprefork \
  --enable-dav \
  --enable-dav-fs \
  --enable-log-config \
  --enable-authn-file \
  --enable-authz-host \
  --enable-authz-group \
  --enable-authz-user \
  --prefix=3D/usr/local/apache2.d \
  --enable-mods-shared=3D"rewrite info worker proxy deflate mod_auth =20
include ssl env mime-magic auth_digest expires dav dav_fs perl"

So I added the -g to CFLAGS. I didn't have that before. Instead I used =20=

--enable-maintainer-mode as documented in

   =
http://perl.apache.org/docs/2.0/devel/debug/c.html#Analyzing_Dumped_Core_F=
iles

Is that out of date, perhaps?

> mod_perl> perl Makefile.PL \
>  MP_APXS=3D$HOME/opt/apache.org/httpd/2.2.8/prefork-debug/bin/apxs
>  MP_MAINTAINER=3D1 \
>  MP_DEBUG=3D1

For me:

mod_perl-2.0.4>/usr/local/perl-5.10.0.d/bin/perl Makefile.PL \
  MP_AP_PREFIX=3D/usr/local/apache2.d \
  MP_MAINTAINER=3D1 \
  MP_PROMPT_DEFAULT=3D1 \

The above URL doesn't have the MP_MAINTAINER=3D1 bit, but I followed =20
your lead. Should it have that?

Ah, bloody hell! Now I get this:

# make
cd "src/modules/perl" && make
cc -I/usr/local/src/mod_perl-2.0.4/src/modules/perl -I/usr/local/src/=20
mod_perl-2.0.4/xs -I/usr/include/apr-1 -I/usr/include/apr-1  -I/usr/=20
local/apache2.d/include -fno-common -DPERL_DARWIN -no-cpp-precomp -=20
DDEBUGGING -fno-strict-aliasing -pipe -I/usr/local/include -I/usr/=20
local/perl-5.10.0.d/lib/5.10.0/darwin-2level/CORE -DMOD_PERL -Wall -=20
Wmissing-prototypes -Wstrict-prototypes -Wmissing-declarations -Werror =20=

-Wdeclaration-after-statement -DMP_COMPAT_1X -DMP_DEBUG -DMP_TRACE -=20
DDARWIN -DSIGPROCMASK_SETS_THREAD_MASK -no-cpp-precomp -g  \
	-c mod_perl.c && mv mod_perl.o mod_perl.lo
In file included from /usr/local/perl-5.10.0.d/lib/5.10.0/=20
darwin-2level/CORE/perl.h:2382,
                  from modperl_perl_includes.h:65,
                  from modperl_common_includes.h:24,
                  from mod_perl.h:21,
                  from mod_perl.c:17:
/usr/local/perl-5.10.0.d/lib/5.10.0/darwin-2level/CORE/handy.h:85:1: =20
error: "bool" redefined
In file included from /usr/include/mach-o/dyld.h:29,
                  from /usr/include/apr-1/apr_portable.h:166,
                  from /usr/local/apache2.d/include/http_protocol.h:31,
                  from modperl_apache_includes.h:30,
                  from mod_perl.h:20,
                  from mod_perl.c:17:
/usr/lib/gcc/i686-apple-darwin9/4.0.1/include/stdbool.h:36:1: error: =20
this is the location of the previous definition
cc1: warnings being treated as errors
In file included from modperl_perl_includes.h:65,
                  from modperl_common_includes.h:24,
                  from mod_perl.h:21,
                  from mod_perl.c:17:
/usr/local/perl-5.10.0.d/lib/5.10.0/darwin-2level/CORE/perl.h:3969: =20
warning: function declaration isn=92t a prototype
In file included from modperl_io_apache.h:22,
                  from modperl_io.h:20,
                  from mod_perl.h:83,
                  from mod_perl.c:17:
/usr/local/perl-5.10.0.d/lib/5.10.0/darwin-2level/CORE/perliol.h:173: =20=

warning: function declaration isn=92t a prototype
mod_perl.c: In function =91modperl_response_handler=92:
mod_perl.c:1019: warning: unused variable =91rcfg=92
make[1]: *** [mod_perl.lo] Error 1
make: *** [modperl_lib] Error 2

WTF? I could have sworn I built a debugging mod_perl before. Could it =20=

be choking on Perl 5.10 here, too?

Thanks,

David=

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