More Weird Perl .dll Errors

Rafael Kitover rkitover@cpan.org
Wed Jan 19 08:31:00 GMT 2011


On 1/17/2011 2:28 PM, Reini Urban wrote:
> 2011/1/15 Rafael Kitover:
>> Hi Reini,
>>
>> I'm not having any luck:
>>
>> $ perl -MClass::XSAccessor -le 1
>> Can't load
>> '/usr/lib/perl5/site_perl/5.10/i686-cygwin/auto/Class/XSAccessor/XSAccessor.dll'
>> for module Class::X
>> SAccessor: No such file or directory at
>> /usr/lib/perl5/5.10/i686-cygwin/XSLoader.pm line 70.
>>   at /usr/lib/perl5/site_perl/5.10/i686-cygwin/Class/XSAccessor.pm line 11
>> Compilation failed in require.
>> BEGIN failed--compilation aborted.
>>
>> $ perlrebase
>> ...
>> ReBaseImage
>> (/usr/lib/perl5/site_perl/5.10/i686-cygwin/auto/Class/XSAccessor/XSAccessor.dll)
>> failed with last e
>> rror = 6
>
> bad, not loadable.
>
>> $ ls -l
>> /usr/lib/perl5/site_perl/5.10/i686-cygwin/auto/Class/XSAccessor/XSAccessor.dll
>> -rwxr-xrwx 1 rkitover None 500002 Jan 15 15:41
>
> The o+w perm will fail for -T taint mode, but this is not the problem here.
>
>> /usr/lib/perl5/site_perl/5.10/i686-cygwin/auto/Class/XSAccessor/
>> XSAccessor.dll
>>
>> $ peflags
>> /usr/lib/perl5/site_perl/5.10/i686-cygwin/auto/Class/XSAccessor/XSAccessor.dll
>> /usr/lib/perl5/site_perl/5.10/i686-cygwin/auto/Class/XSAccessor/XSAccessor.dll:
>> coff(0x2106) pe(0x8000)
>
> good
>
>> $ imagebase
>> /usr/lib/perl5/site_perl/5.10/i686-cygwin/auto/Class/XSAccessor/XSAccessor.dll
>> 68640000
>
> good.
>
>> $ ldd
>> /usr/lib/perl5/site_perl/5.10/i686-cygwin/auto/Class/XSAccessor/XSAccessor.dll
>>         ntdll.dll =>  /cygdrive/c/Windows/SysWOW64/ntdll.dll (0x77480000)
>>         kernel32.dll =>  /cygdrive/c/Windows/syswow64/kernel32.dll
>> (0x75530000)
>>         KERNELBASE.dll =>  /cygdrive/c/Windows/syswow64/KERNELBASE.dll
>> (0x74d70000)
>
> bad.
> This is all?
> If so you have a mingw perl dll here, which cannot be loaded by cygwin perl.

So the question becomes, how did I get a mingw dll? I used the CPAN 
shell to install this module just like any other module.

The modules that work give me correct output:

$ perl -MSub::Name -le 1

rkitover@eeebox ~
$ ldd /usr/lib/perl5/site_perl/5.10/i686-cygwin/auto/Sub/Name/Name.dll
         ntdll.dll => /cygdrive/c/Windows/SysWOW64/ntdll.dll (0x77100000)
         kernel32.dll => /cygdrive/c/Windows/syswow64/kernel32.dll 
(0x76670000)
         KERNELBASE.dll => /cygdrive/c/Windows/syswow64/KERNELBASE.dll 
(0x75690000)
         cygwin1.dll => /usr/bin/cygwin1.dll (0x61000000)
         ADVAPI32.DLL => /cygdrive/c/Windows/syswow64/ADVAPI32.DLL 
(0x74d00000)
         msvcrt.dll => /cygdrive/c/Windows/syswow64/msvcrt.dll (0x74910000)
         sechost.dll => /cygdrive/c/Windows/SysWOW64/sechost.dll 
(0x75370000)
         RPCRT4.dll => /cygdrive/c/Windows/syswow64/RPCRT4.dll (0x74f90000)
         SspiCli.dll => /cygdrive/c/Windows/syswow64/SspiCli.dll 
(0x74750000)
         CRYPTBASE.dll => /cygdrive/c/Windows/syswow64/CRYPTBASE.dll 
(0x74740000)
         cyggcc_s-1.dll => /usr/bin/cyggcc_s-1.dll (0x70e20000)
         cygperl5_10.dll => /usr/bin/cygperl5_10.dll (0x57010000)
         cygcrypt-0.dll => /usr/bin/cygcrypt-0.dll (0x6fb70000)
         cygssp-0.dll => /usr/bin/cygssp-0.dll (0x70220000)

After 'look'ing into Class::XSAccessor:

perl Makefile.PL
make
...

$ ldd blib/arch/auto/Class/XSAccessor/XSAccessor.dll
         ntdll.dll => /cygdrive/c/Windows/SysWOW64/ntdll.dll (0x77100000)
         kernel32.dll => /cygdrive/c/Windows/syswow64/kernel32.dll 
(0x76670000)
         KERNELBASE.dll => /cygdrive/c/Windows/syswow64/KERNELBASE.dll 
(0x75690000)
         cygwin1.dll => /usr/bin/cygwin1.dll (0x61000000)
         ADVAPI32.DLL => /cygdrive/c/Windows/syswow64/ADVAPI32.DLL 
(0x74d00000)
         msvcrt.dll => /cygdrive/c/Windows/syswow64/msvcrt.dll (0x74910000)
         sechost.dll => /cygdrive/c/Windows/SysWOW64/sechost.dll 
(0x75370000)
         RPCRT4.dll => /cygdrive/c/Windows/syswow64/RPCRT4.dll (0x74f90000)
         SspiCli.dll => /cygdrive/c/Windows/syswow64/SspiCli.dll 
(0x74750000)
         CRYPTBASE.dll => /cygdrive/c/Windows/syswow64/CRYPTBASE.dll 
(0x74740000)
         cyggcc_s-1.dll => /usr/bin/cyggcc_s-1.dll (0x70e20000)
         cygperl5_10.dll => /usr/bin/cygperl5_10.dll (0x57010000)
         cygcrypt-0.dll => /usr/bin/cygcrypt-0.dll (0x6fb70000)
         cygssp-0.dll => /usr/bin/cygssp-0.dll (0x70220000)

That all looks good.

$ make test
PERL_DL_NONLAZY=1 /usr/bin/perl.exe "-MExtUtils::Command::MM" "-e" 
"test_harness(0, 'blib/lib', 'blib/arch')" t
/*.t
...
...
All tests successful.
Files=23, Tests=451, 14 wallclock secs ( 0.75 usr  0.45 sys +  6.36 cusr 
  5.55 csys = 13.12 CPU)
Result: PASS

So that one works.

$ make install
Files found in blib/arch: installing files in blib/lib into architecture 
dependent library tree
Installing 
/usr/lib/perl5/site_perl/5.10/i686-cygwin/auto/Class/XSAccessor/XSAccessor.dll
Appending installation info to /usr/lib/perl5/5.10/i686-cygwin/perllocal.pod

$ ldd 
/usr/lib/perl5/site_perl/5.10/i686-cygwin/auto/Class/XSAccessor/XSAccessor.dll
         ntdll.dll => /cygdrive/c/Windows/SysWOW64/ntdll.dll (0x77100000)
         kernel32.dll => /cygdrive/c/Windows/syswow64/kernel32.dll 
(0x76670000)
         KERNELBASE.dll => /cygdrive/c/Windows/syswow64/KERNELBASE.dll 
(0x75690000)

What the fuck just happened there?

On the theory that EU::MM is doing something weird that breaks it, I 
tried this:

$ rm -f 
/usr/lib/perl5/site_perl/5.10/i686-cygwin/auto/Class/XSAccessor/XSAccessor.dll

$ cp blib/arch/auto/Class/XSAccessor/XSAccessor.dll 
/usr/lib/perl5/site_perl/5.10/i686-cygwin/auto/Class/XSAcc
essor/XSAccessor.dll

$ ldd 
/usr/lib/perl5/site_perl/5.10/i686-cygwin/auto/Class/XSAccessor/XSAccessor.dll
         ntdll.dll => /cygdrive/c/Windows/SysWOW64/ntdll.dll (0x77100000)
         kernel32.dll => /cygdrive/c/Windows/syswow64/kernel32.dll 
(0x76670000)
         KERNELBASE.dll => /cygdrive/c/Windows/syswow64/KERNELBASE.dll 
(0x75690000)

How do you explain this? I just made a copy of the .dll, and that breaks it!

And it's only a copy into that specific location.

$ cp blib/arch/auto/Class/XSAccessor/XSAccessor.dll  .
$ ldd ./XSAccessor.dll
         ntdll.dll => /cygdrive/c/Windows/SysWOW64/ntdll.dll (0x77100000)
         kernel32.dll => /cygdrive/c/Windows/syswow64/kernel32.dll 
(0x76670000)
         KERNELBASE.dll => /cygdrive/c/Windows/syswow64/KERNELBASE.dll 
(0x75690000)
         cygwin1.dll => /usr/bin/cygwin1.dll (0x61000000)
         ADVAPI32.DLL => /cygdrive/c/Windows/syswow64/ADVAPI32.DLL 
(0x74d00000)
         msvcrt.dll => /cygdrive/c/Windows/syswow64/msvcrt.dll (0x74910000)
         sechost.dll => /cygdrive/c/Windows/SysWOW64/sechost.dll 
(0x75370000)
         RPCRT4.dll => /cygdrive/c/Windows/syswow64/RPCRT4.dll (0x74f90000)
         SspiCli.dll => /cygdrive/c/Windows/syswow64/SspiCli.dll 
(0x74750000)
         CRYPTBASE.dll => /cygdrive/c/Windows/syswow64/CRYPTBASE.dll 
(0x74740000)
         cyggcc_s-1.dll => /usr/bin/cyggcc_s-1.dll (0x70e20000)
         cygperl5_10.dll => /usr/bin/cygperl5_10.dll (0x57010000)
         cygcrypt-0.dll => /usr/bin/cygcrypt-0.dll (0x6fb70000)
         cygssp-0.dll => /usr/bin/cygssp-0.dll (0x70220000)

>
> mine:
> $ ldd /usr/lib/perl5/site_perl/5.10/i686-cygwin/auto/Class/XSAccessor/XSAccessor.dll
>          ntdll.dll =>  /cygdrive/c/Windows/SYSTEM32/ntdll.dll (0x77990000)
>          kernel32.dll =>  /cygdrive/c/Windows/system32/kernel32.dll (0x77120000)
>          KERNELBASE.dll =>  /cygdrive/c/Windows/system32/KERNELBASE.dll
> (0x75b90000)
>          cygwin1.dll =>  /usr/bin/cygwin1.dll (0x61000000)
>          ADVAPI32.DLL =>  /cygdrive/c/Windows/system32/ADVAPI32.DLL (0x76e20000)
>          msvcrt.dll =>  /cygdrive/c/Windows/system32/msvcrt.dll (0x75de0000)
>          sechost.dll =>  /cygdrive/c/Windows/SYSTEM32/sechost.dll (0x76190000)
>          RPCRT4.dll =>  /cygdrive/c/Windows/system32/RPCRT4.dll (0x77020000)
>          cyggcc_s-1.dll =>  /usr/bin/cyggcc_s-1.dll (0x67f00000)
>          cygperl5_10.dll =>  /usr/bin/cygperl5_10.dll (0x56010000)
>          cygcrypt-0.dll =>  /usr/bin/cygcrypt-0.dll (0x72fe0000)
>          cygssp-0.dll =>  /usr/bin/cygssp-0.dll (0x67280000)
>          SspiCli.dll =>  /cygdrive/c/Windows/system32/SspiCli.dll (0x759f0000)
>
>> On 1/14/2011 12:00 PM, Reini Urban wrote:
>>>
>>> 2011/1/14 Rafael Kitover:
>>>>
>>>> I tried both peflagsall and rebaseall with a -T list including all .dlls
>>>> under /usr/lib/perl5 as well as /usr/bin/cygperl5_10.dll
>>>>
>>>> But the error for MOP.dll persists.
>>>
>>> The Class::MOP and Sub::Name dll's are different beasts.
>>> If they do not load, (even windows refuses to load them apparently)
>>> you'll have to recompile them, followed by a perlrebase.
>>>
>>>> I'm not sure that when I tried the rebaseall it ran through to
>>>> completion,
>>>> because it gave me this error:
>>>>
>>>> FixImage (/usr/x86_64-w64-mingw32/sys-root/mingw/bin/libgcc_s_sjlj-1.dll)
>>>> failed with last error = 13
>>>
>>> You have to exclude all mingw dll's from rebaseall.
>>> This will be fixed in the next rebase package.
>>>
>>>> This is Windows 7 64bit
>>>>
>>>> On 1/14/2011 4:35 AM, Matthias Andree wrote:
>>>>>
>>>>> Am 14.01.2011 10:21, schrieb Rafael Kitover:
>>>>>>
>>>>>> Something weird happened to my Class::MOP .dll :
>>>>>>
>>>>>> $ perl -MClass::MOP -le 1
>>>>>> Can't load
>>>>>> '/usr/lib/perl5/site_perl/5.10/i686-cygwin/auto/Class/MOP/MOP.dll' for
>>>>>> module Class::MOP: No such fi
>>>>>> le or directory at /usr/lib/perl5/5.10/i686-cygwin/XSLoader.pm line 70.
>>>>>>    at /usr/lib/perl5/site_perl/5.10/i686-cygwin/Class/MOP.pm line 38
>>>>>> Compilation failed in require.
>>>>>> BEGIN failed--compilation aborted.
>>>>>>
>>>>>> If I try to run perlrebase, I get this:
>>>>>>
>>>>>> ...
>>>>>> /usr/lib/perl5/5.10/i686-cygwin/auto/Time/Piece/Piece.dll: new base =
>>>>>> 57900000, new size = 10000
>>>>>> /usr/lib/perl5/5.10/i686-cygwin/auto/Unicode/Normalize/Normalize.dll:
>>>>>> new base = 57910000, new size = 50000
>>>>>> /usr/lib/perl5/5.10/i686-cygwin/auto/Win32/Win32.dll: new base =
>>>>>> 57960000, new size = 20000
>>>>>> /usr/lib/perl5/5.10/i686-cygwin/auto/Win32API/File/File.dll: new base =
>>>>>> 57980000, new size = 30000
>>>>>> ReBaseImage
>>>>>> (/usr/lib/perl5/site_perl/5.10/i686-cygwin/auto/Class/MOP/MOP.dll)
>>>>>> failed with last error = 6
>>>
>>> Either no write+exec permission or broken dependency.
>>>
>>>>>> I tried doing a "notest force install Class::MOP" in CPAN shell, same
>>>>>> error after the installation finishes.
>>>
>>> If it's not the perm (unlikely), check the imagebase of your new dll:
>>>
>>> $ cat ~/bin/imagebase
>>> #!/bin/sh
>>> objdump -p $1 |grep ImageBase |cut -c12-
>>>
>>> $ imagebase
>>> /usr/lib/perl5/site_perl/5.10/i686-cygwin/auto/Class/MOP/MOP.dll
>>> 66c00000
>>>
>>> And check the bases of the dependant dll's also: Anything below
>>> 0x4000_0000 is broken.
>>>
>>> $ ldd /usr/lib/perl5/site_perl/5.10/i686-cygwin/auto/Class/MOP/MOP.dll
>>>          ntdll.dll =>    /cygdrive/c/Windows/SYSTEM32/ntdll.dll (0x778b0000)
>>>          kernel32.dll =>    /cygdrive/c/Windows/system32/kernel32.dll
>>> (0x777d0000)
>>>          KERNELBASE.dll =>    /cygdrive/c/Windows/system32/KERNELBASE.dll
>>> (0x75cb0000)
>>>          cygwin1.dll =>    /usr/bin/cygwin1.dll (0x61000000)
>>>          ADVAPI32.DLL =>    /cygdrive/c/Windows/system32/ADVAPI32.DLL
>>> (0x77730000)
>>>          msvcrt.dll =>    /cygdrive/c/Windows/system32/msvcrt.dll
>>> (0x76600000)
>>>          sechost.dll =>    /cygdrive/c/Windows/SYSTEM32/sechost.dll
>>> (0x767e0000)
>>>          RPCRT4.dll =>    /cygdrive/c/Windows/system32/RPCRT4.dll
>>> (0x766b0000)
>>>          cyggcc_s-1.dll =>    /usr/bin/cyggcc_s-1.dll (0x67f00000)
>>>          cygperl5_10.dll =>    /usr/bin/cygperl5_10.dll (0x56010000)
>>>          cygcrypt-0.dll =>    /usr/bin/cygcrypt-0.dll (0x694d0000)
>>>          cygssp-0.dll =>    /usr/bin/cygssp-0.dll (0x67280000)
>>>          SspiCli.dll =>    /cygdrive/c/Windows/system32/SspiCli.dll
>>> (0x75910000)
>>>
>>>>>> I tried rebooting and running perlrebase again, same error.
>>>>>
>>>>> Try rebaseall, or if you're under Vista or 7, peflagsall.

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