Hi Steve
httpd is configured with "--enable-maintainer-mode".
For mod_perl:
/usr/local/bin/perl Makefile.PL MP_APXS=/usr/local/httpd-2.4.12/bin/apxs
MP_APR_CONFIG=/usr/local/httpd-2.4.12/bin/apr-1-config
and I found the following line in the resultant Makefile:
CCFLAGS = -D_REENTRANT -D_GNU_SOURCE -fPIC -fwrapv -fno-strict-aliasing -pipe
-fstack-protector -I/usr/local/include -D_LARGEFILE_SOURCE
-D_FILE_OFFSET_BITS=64 -DMOD_PERL -DMP_COMPAT_1X -DLINUX -D_REENTRANT
-D_GNU_SOURCE -DAP_DEBUG
Regards,
Jie
* Steve Hay <steve.m....@googlemail.com> wrote:
> Date: Thu, 9 Apr 2015 14:29:44 +0100
> From: Steve Hay <steve.m....@googlemail.com>
> To: Jie Gao <j....@sydney.edu.au>
> CC: "modperl@perl.apache.org" <modperl@perl.apache.org>, mod_perl Dev
> <d...@perl.apache.org>
> Subject: Re: Trunk: APR.so won't load
>
> Sorry for the slow reply.
>
> I cannot reproduce the problem here on Windows. Your example module
> loads up fine with all the "use APR" lines uncommented.
>
> The build system (and the means by which APR::* should be loadable
> without mod_perl.so being loaded) is different on Windows, but I did
> notice this:
>
> ap_strchr seems to only be used in xs\Apache2\Module\Apache2__Module.h
> but when I run Module.c through the preprocessor I find that ap_strchr
> gets changed to strchr, and the latter is simply imported from the C
> run-time library.
>
> I guess that's down to this code in httpd.h:
>
> #ifdef AP_DEBUG
>
> #undef strchr
> # define strchr(s, c) ap_strchr(s,c)
> #undef strrchr
> # define strrchr(s, c) ap_strrchr(s,c)
> #undef strstr
> # define strstr(s, c) ap_strstr(s,c)
>
> #else
>
> /** use this instead of strchr */
> # define ap_strchr(s, c) strchr(s, c)
> /** use this instead of strchr */
> # define ap_strchr_c(s, c) strchr(s, c)
> /** use this instead of strrchr */
> # define ap_strrchr(s, c) strrchr(s, c)
> /** use this instead of strrchr */
> # define ap_strrchr_c(s, c) strrchr(s, c)
> /** use this instead of strrstr*/
> # define ap_strstr(s, c) strstr(s, c)
> /** use this instead of strrstr*/
> # define ap_strstr_c(s, c) strstr(s, c)
>
> #endif
>
> so presumably I do not have AP_DEBUG defined for my build (even though
> it was a debug build).
>
> It looks like AP_DEBUG should not be defined, even in maintainer mode,
> according to an old Changes entry:
>
> remove -DAP_HAVE_DESIGNATED_INITIALIZER and -DAP_DEBUG from
> MP_MAINTAINER mode to avoid collisions [Joe Orton]
>
> but do you somehow have AP_DEBUG defined somewhere, which causes the
> replacement of ap_strchr with strchr to not happen for you?
>
>
> On 27 March 2015 at 09:14, Jie Gao <j....@sydney.edu.au> wrote:
> > Hi All
> >
> > I had some more time looking into this, and here's some info I can provide.
> >
> > --------------------------------------------------------------------------
> >
> > # readelf -a
> > /usr/local/lib/perl5/site_perl/5.20.2/x86_64-linux-thread-multi/auto/APR/APR.so
> > ELF Header:
> > Magic: 7f 45 4c 46 02 01 01 00 00 00 00 00 00 00 00 00
> > Class: ELF64
> > Data: 2's complement, little endian
> > Version: 1 (current)
> > OS/ABI: UNIX - System V
> > ABI Version: 0
> > Type: DYN (Shared object file)
> > Machine: Advanced Micro Devices X86-64
> > Version: 0x1
> > Entry point address: 0x1cb0
> > Start of program headers: 64 (bytes into file)
> > Start of section headers: 15480 (bytes into file)
> > Flags: 0x0
> > Size of this header: 64 (bytes)
> > Size of program headers: 56 (bytes)
> > Number of program headers: 6
> > Size of section headers: 64 (bytes)
> > Number of section headers: 29
> > Section header string table index: 26
> >
> > Section Headers:
> > [Nr] Name Type Address Offset
> > Size EntSize Flags Link Info Align
> > [ 0] NULL 0000000000000000 00000000
> > 0000000000000000 0000000000000000 0 0 0
> >
> > [ Lines removed for clarity ]
> >
> > Dynamic section at offset 0x36f8 contains 27 entries:
> > Tag Type Name/Value
> > 0x0000000000000001 (NEEDED) Shared library: [libaprutil-1.so.0]
> > 0x0000000000000001 (NEEDED) Shared library: [libexpat.so.1]
> > 0x0000000000000001 (NEEDED) Shared library: [libapr-1.so.0]
> > 0x0000000000000001 (NEEDED) Shared library: [librt.so.1]
> > 0x0000000000000001 (NEEDED) Shared library: [libcrypt.so.1]
> > 0x0000000000000001 (NEEDED) Shared library: [libpthread.so.0]
> > 0x0000000000000001 (NEEDED) Shared library: [libc.so.6]
> > 0x000000000000000f (RPATH) Library rpath:
> > [/usr/local/httpd-2.4.12/lib:/lib/../lib64]
> >
> > [ Lines removed for clarity ]
> >
> > Relocation section '.rela.plt' at offset 0x1300 contains 61 entries:
> > Offset Info Type Sym. Value Sym. Name +
> > Addend
> > 000000203930 000200000007 R_X86_64_JUMP_SLO 0000000000000000 Perl_mg_get + > > 0
> > 000000203938 000300000007 R_X86_64_JUMP_SLO 0000000000000000 Perl_sv_setiv
> > + 0
> > 000000203940 000400000007 R_X86_64_JUMP_SLO 0000000000000000 Perl_sv_bless
> > + 0
> > 000000203948 000500000007 R_X86_64_JUMP_SLO 0000000000000000 apr_strerror
> > + 0
> > 000000203950 000600000007 R_X86_64_JUMP_SLO 0000000000000000
> > Perl_require_pv + 0
> > 000000203958 000700000007 R_X86_64_JUMP_SLO 0000000000000000 Perl_warn + 0
> > 000000203960 000800000007 R_X86_64_JUMP_SLO 0000000000000000 PerlIO_printf
> > + 0
> > 000000203968 000900000007 R_X86_64_JUMP_SLO 0000000000000000 ap_strchr + 0
> >
> > [ Lines removed for clarity ]
> >
> > Symbol table '.dynsym' contains 86 entries:
> > Num: Value Size Type Bind Vis Ndx Name
> > 0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND
> > 1: 00000000000018b8 0 SECTION LOCAL DEFAULT 9
> > 2: 0000000000000000 0 NOTYPE GLOBAL DEFAULT UND Perl_mg_get
> > 3: 0000000000000000 0 NOTYPE GLOBAL DEFAULT UND Perl_sv_setiv
> > 4: 0000000000000000 0 NOTYPE GLOBAL DEFAULT UND Perl_sv_bless
> > 5: 0000000000000000 0 FUNC GLOBAL DEFAULT UND apr_strerror
> > 6: 0000000000000000 0 NOTYPE GLOBAL DEFAULT UND Perl_require_pv
> > 7: 0000000000000000 0 NOTYPE GLOBAL DEFAULT UND Perl_warn
> > 8: 0000000000000000 0 NOTYPE GLOBAL DEFAULT UND PerlIO_printf
> > 9: 0000000000000000 0 NOTYPE GLOBAL DEFAULT UND ap_strchr
> >
> >
> > [ Lines removed for clarity ]
> >
> > Symbol table '.symtab' contains 143 entries:
> > Num: Value Size Type Bind Vis Ndx Name
> > 0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND
> > 1: 0000000000000190 0 SECTION LOCAL DEFAULT 1
> >
> > [ Lines removed for clarity ]
> >
> > 69: 0000000000000000 0 NOTYPE GLOBAL DEFAULT UND ap_strchr
> >
> >
> > [ Lines removed for clarity ]
> >
> > --------------------------------------------------------------------------
> >
> > It seems that ap_strchr is not defined anywhere outside httpd, and not in
> > any of the shared libs. This seems to create the problem when building
> > a module with mod_perl or outside the mod_perl source.
> >
> > I find a somewhat related change by Stas in the past in the Changes file:
> >
> > bug reports generating code: [Stas]
> > - add (apr|apu)-config linking info
> > - show the full path to the config file used to get the data for the
> > report
> >
> > The APR and APR::* family of modules can now be used without having
> > to load mod_perl.so. On *nix, this is done by compiling the needed
> > functions from the appropriate sources used to build mod_perl.so
> > into APR.so, and then arranging for APR::* to 'use APR ()'. On Win32,
> > a static library of needed functions is built, and APR/APR::*
> > then link into this library [Stas, Joe Schaefer, Randy Kobes]
> >
> >
> > I hope this helps resolve this issue in any way.
> >
> >
> >
> >
> >
> > Regards,
> >
> > Jie
> >
> > * Jie Gao <j....@sydney.edu.au> wrote:
> >
> >> Date: Sun, 1 Mar 2015 17:30:45 +1100
> >> From: Jie Gao <j....@sydney.edu.au>
> >> To: "modperl@perl.apache.org" <modperl@perl.apache.org>, mod_perl Dev
> >> <d...@perl.apache.org>
> >> Subject: Trunk: APR.so won't load
> >> User-Agent: Mutt/1.5.21 (2010-09-15)
> >>
> >> I have got the source code from the trunk, "make test" mostly passed
> >> except for
> >> a threading issue, but I installed it anyway.
> >>
> >> Tried to load a test module, but it fails with the following error:
> >>
> >> # Error: Can't load
> >> '/usr/local/lib/perl5/site_perl/5.20.2/x86_64-linux-thread-multi/auto/APR/APR.so'
> >> for module APR:
> >> /usr/local/lib/perl5/site_perl/5.20.2/x86_64-linux-thread-multi/auto/APR/APR.so:
> >> undefined symbol: ap_strchr at
> >> /usr/local/lib/perl5/5.20.2/x86_64-linux-thread-multi/DynaLoader.pm line
> >> 193.
> >> # at
> >> /usr/local/lib/perl5/site_perl/5.20.2/x86_64-linux-thread-multi/APR/Table.pm
> >> line 23.
> >>
> >> The following test module loads OK, but fails if I uncomment any of the
> >> "use APR::*" lines:
> >>
> >> #-------------------------------------------------------------------------
> >>
> >> package mytest::mytestmodule;
> >>
> >> use 5.010001;
> >> use strict;
> >> use warnings;
> >> use Carp;
> >> $SIG{__DIE__} = \&Carp::confess;
> >>
> >> use mod_perl2;
> >> use Apache2::Connection();
> >> use Apache2::RequestRec();
> >> use Apache2::SubRequest();
> >> use Apache2::Access();
> >> use Apache2::RequestUtil();
> >> use Apache2::Response();
> >> use Apache2::Log();
> >> use Apache2::Util();
> >> use Apache2::Const ("-compile", qw(:common :methods :satisfy :auth
> >> MODE_READBYTES));
> >> use Apache2::URI();
> >> use Apache2::Filter ();
> >> #use APR::Const ("-compile", qw(:common SUCCESS BLOCK_READ));
> >> use IO::Socket qw(SOCK_STREAM);
> >> use Data::Dumper;
> >> use AnyDBM_File ();
> >> #use APR::Brigade ();
> >> #use APR::Bucket ();
> >> #use APR::Base64 ();
> >> #use APR::Table ();
> >> #use APR::URI ();
> >> use URI::Escape::XS qw/uri_escape uri_unescape/;
> >> #use Apache2::MPM();
> >>
> >> our $VERSION = '1.0.1';
> >>
> >> 1;
> >> __END__
> >>
> >> #-------------------------------------------------------------------------
> >>
> >> -------------8<---------- Start Bug Report ------------8<----------
> >> 1. Problem Description:
> >>
> >> [DESCRIBE THE PROBLEM HERE]
> >>
> >> 2. Used Components and their Configuration:
> >>
> >> *** mod_perl version 2.000009
> >>
> >> *** using /usr/local/src/mod_perl-2.0/lib/Apache2/BuildConfig.pm
> >>
> >> *** Makefile.PL options:
> >> MP_APR_CONFIG => /usr/local/httpd-2.4.12/bin/apr-1-config
> >> MP_APR_LIB => aprext
> >> MP_APXS => /usr/local/httpd-2.4.12/bin/apxs
> >> MP_COMPAT_1X => 1
> >> MP_GENERATE_XS => 1
> >> MP_LIBNAME => mod_perl
> >> MP_USE_DSO => 1
> >>
> >>
> >> *** /usr/local/httpd-2.4.12/bin/httpd -V
> >> Server version: Apache/2.4.12 (Unix)
> >> Server built: Feb 27 2015 20:05:23
> >> Server's Module Magic Number: 20120211:41
> >> Server loaded: APR 1.5.1, APR-UTIL 1.5.4
> >> Compiled using: APR 1.5.1, APR-UTIL 1.5.4
> >> Architecture: 64-bit
> >> Server MPM: worker
> >> threaded: yes (fixed thread count)
> >> forked: yes (variable process count)
> >> Server compiled with....
> >> -D APR_HAS_SENDFILE
> >> -D APR_HAS_MMAP
> >> -D APR_HAVE_IPV6 (IPv4-mapped addresses enabled)
> >> -D APR_USE_SYSVSEM_SERIALIZE
> >> -D APR_USE_PTHREAD_SERIALIZE
> >> -D SINGLE_LISTEN_UNSERIALIZED_ACCEPT
> >> -D APR_HAS_OTHER_CHILD
> >> -D AP_HAVE_RELIABLE_PIPED_LOGS
> >> -D DYNAMIC_MODULE_LIMIT=256
> >> -D HTTPD_ROOT="/usr/local/httpd-2.4.12"
> >> -D SUEXEC_BIN="/usr/local/httpd-2.4.12/bin/suexec"
> >>
> >>
> >> *** /usr/bin/ldd /usr/local/httpd-2.4.12/bin/httpd
> >> linux-vdso.so.1 => (0x00007fffcefff000)
> >> libpcre.so.0 => /lib64/libpcre.so.0 (0x000000327f400000)
> >> libaprutil-1.so.0 => /usr/local/httpd-2.4.12/lib/libaprutil-1.so.0
> >> (0x00007f3ba864c000)
> >> libexpat.so.1 => /lib64/libexpat.so.1 (0x0000003281c00000)
> >> libapr-1.so.0 => /usr/local/httpd-2.4.12/lib/libapr-1.so.0
> >> (0x00007f3ba8417000)
> >> librt.so.1 => /lib64/librt.so.1 (0x000000327dc00000)
> >> libcrypt.so.1 => /lib64/libcrypt.so.1 (0x00000036c2400000)
> >> libpthread.so.0 => /lib64/libpthread.so.0 (0x000000327d400000)
> >> libc.so.6 => /lib64/libc.so.6 (0x000000327d000000)
> >> /lib64/ld-linux-x86-64.so.2 (0x000000327cc00000)
> >> libfreebl3.so => /lib64/libfreebl3.so (0x00000036c2800000)
> >> libdl.so.2 => /lib64/libdl.so.2 (0x000000327d800000)
> >>
> >>
> >> *** (apr|apu)-config linking info
> >>
> >> -L/usr/local/httpd-2.4.12/lib -laprutil-1 -lexpat
> >> -L/usr/local/httpd-2.4.12/lib -lapr-1 -lrt -lcrypt -lpthread
> >>
> >>
> >>
> >> *** /usr/local/bin/perl -V
> >> Summary of my perl5 (revision 5 version 20 subversion 2) configuration:
> >>
> >> Platform:
> >> osname=linux, osvers=2.6.32-504.8.1.el6.x86_64,
> >> archname=x86_64-linux-thread-multi
> >> uname='linux xxx.xxx.xxx.xx 2.6.32-504.8.1.el6.x86_64 #1 smp fri dec
> >> 19 12:09:25 est 2014 x86_64 x86_64 x86_64 gnulinux '
> >> config_args='-Dusethreads -Dprefix=/usr/local -des -A ccflags=-fPIC'
> >> hint=recommended, useposix=true, d_sigaction=define
> >> useithreads=define, usemultiplicity=define
> >> use64bitint=define, use64bitall=define, uselongdouble=undef
> >> usemymalloc=n, bincompat5005=undef
> >> Compiler:
> >> cc='cc', ccflags ='-D_REENTRANT -D_GNU_SOURCE -fPIC -fwrapv
> >> -fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include
> >> -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64',
> >> optimize='-O2',
> >> cppflags='-D_REENTRANT -D_GNU_SOURCE -fPIC -fwrapv
> >> -fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include'
> >> ccversion='', gccversion='4.4.7 20120313 (Red Hat 4.4.7-11)',
> >> gccosandvers=''
> >> intsize=4, longsize=8, ptrsize=8, doublesize=8, byteorder=12345678
> >> d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=16
> >> ivtype='long', ivsize=8, nvtype='double', nvsize=8, Off_t='off_t',
> >> lseeksize=8
> >> alignbytes=8, prototype=define
> >> Linker and Libraries:
> >> ld='cc', ldflags =' -fstack-protector -L/usr/local/lib'
> >> libpth=/usr/local/lib /usr/lib /lib/../lib64 /usr/lib/../lib64 /lib
> >> /lib64 /usr/lib64 /usr/local/lib64
> >> libs=-lnsl -lgdbm -ldb -ldl -lm -lcrypt -lutil -lpthread -lc
> >> perllibs=-lnsl -ldl -lm -lcrypt -lutil -lpthread -lc
> >> libc=libc-2.12.so, so=so, useshrplib=false, libperl=libperl.a
> >> gnulibc_version='2.12'
> >> Dynamic Linking:
> >> dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E'
> >> cccdlflags='-fPIC', lddlflags='-shared -O2 -L/usr/local/lib
> >> -fstack-protector'
> >>
> >>
> >> Characteristics of this binary (from libperl):
> >> Compile-time options: HAS_TIMES MULTIPLICITY PERLIO_LAYERS
> >> PERL_DONT_CREATE_GVSV
> >> PERL_HASH_FUNC_ONE_AT_A_TIME_HARD
> >> PERL_IMPLICIT_CONTEXT PERL_MALLOC_WRAP
> >> PERL_NEW_COPY_ON_WRITE PERL_PRESERVE_IVUV
> >> USE_64_BIT_ALL USE_64_BIT_INT USE_ITHREADS
> >> USE_LARGE_FILES USE_LOCALE USE_LOCALE_COLLATE
> >> USE_LOCALE_CTYPE USE_LOCALE_NUMERIC USE_PERLIO
> >> USE_PERL_ATOF USE_REENTRANT_API
> >> Built under linux
> >> Compiled at Feb 25 2015 15:58:55
> >> %ENV:
> >> PERL_LWP_USE_HTTP_10="1"
> >> @INC:
> >> /usr/local/lib/perl5/site_perl/5.20.2/x86_64-linux-thread-multi
> >> /usr/local/lib/perl5/site_perl/5.20.2
> >> /usr/local/lib/perl5/5.20.2/x86_64-linux-thread-multi
> >> /usr/local/lib/perl5/5.20.2
> >> /usr/local/lib/perl5/site_perl/5.18.2
> >> /usr/local/lib/perl5/site_perl/5.18.0
> >> /usr/local/lib/perl5/site_perl
> >> .
> >>
> >> *** Packages of interest status:
> >>
> >> Apache2 : -
> >> Apache2::Request : -
> >> CGI : 3.65
> >> ExtUtils::MakeMaker: 6.98
> >> LWP : 5.837
> >> mod_perl : -
> >> mod_perl2 : 2.000009
> >>
> >>
> >> 3. This is the core dump trace: (if you get a core dump):
> >>
> >> [CORE TRACE COMES HERE]
> >>
> >> This report was generated by bin/mp2bug on Sun Mar 1 06:21:21 2015 GMT.
> >>
> >> -------------8<---------- End Bug Report --------------8<----------
> >>
> >> # ls -al /usr/local/httpd-2.4.12/lib/
> >> total 4108
> >> drwxr-xr-x. 4 root root 4096 Feb 27 20:07 .
> >> drwxr-xr-x. 15 root root 4096 Feb 27 20:07 ..
> >> -rw-r--r--. 1 root root 9262 Feb 27 20:07 apr.exp
> >> drwxr-xr-x. 2 root root 4096 Feb 27 20:07 apr-util-1
> >> -rw-r--r--. 1 root root 5272 Feb 27 20:07 aprutil.exp
> >> -rw-r--r--. 1 root root 1685642 Feb 27 20:07 libapr-1.a
> >> -rwxr-xr-x. 1 root root 969 Feb 27 20:07 libapr-1.la
> >> lrwxrwxrwx. 1 root root 17 Feb 27 20:07 libapr-1.so ->
> >> libapr-1.so.0.5.1
> >> lrwxrwxrwx. 1 root root 17 Feb 27 20:07 libapr-1.so.0 ->
> >> libapr-1.so.0.5.1
> >> -rwxr-xr-x. 1 root root 858051 Feb 27 20:07 libapr-1.so.0.5.1
> >> -rw-r--r--. 1 root root 1022024 Feb 27 20:07 libaprutil-1.a
> >> -rwxr-xr-x. 1 root root 1045 Feb 27 20:07 libaprutil-1.la
> >> lrwxrwxrwx. 1 root root 21 Feb 27 20:07 libaprutil-1.so ->
> >> libaprutil-1.so.0.5.4
> >> lrwxrwxrwx. 1 root root 21 Feb 27 20:07 libaprutil-1.so.0 ->
> >> libaprutil-1.so.0.5.4
> >> -rwxr-xr-x. 1 root root 589222 Feb 27 20:07 libaprutil-1.so.0.5.4
> >> drwxr-xr-x. 2 root root 4096 Feb 27 20:07 pkgconfig
> >>
> >>
> >>
> >>
> >>
> >>
> >> Regards,
> >>
> >>
> >> Jie.
> >>
> >>
> >>
