Re^12: if Digest::SHA1 loaded Can't load LibXML/LibXML.dll Invalid access to memory location

[bulk88]

in reply to Re^11: if Digest::SHA1 loaded Can't load LibXML/LibXML.dll Invalid access to memory location
in thread if Digest::SHA1 loaded Can't load LibXML/LibXML.dll Invalid access to memory location

Both ok and broken loaded correctly without error. Win32::LoadLibrary returns a handle for both and reading that handle as a mem block, the first 2 letters were MZ (dll/exe magic). Can not reproduce.

[syphilis]

Win32::LoadLibrary returns a handle for both

Yep - just checked, and Win32::LoadLibrary loads them both just fine for me, too.
Which means ... what ... it's a DynaLoader bug ?

For my check, I ran this script (as per the one you posted earlier in this thread):

use warnings;
use strict;
use Win32;

my $ret = Win32::LoadLibrary('C:\sisyphusion\PLplot_broken.dll');
print "ret=$ret glr=".Win32::GetLastError()."\n";

$ret = Win32::LoadLibrary('C:\sisyphusion\PLplot_ok.dll');
print "ret=$ret glr=".Win32::GetLastError()."\n";

and that produced the following output:

ret=1647050752 glr=0
ret=1659895808 glr=0

It's not just 5.8.9 where this happens, but also 5.8.8, 5.14.0. 5.16.0 (and perhaps other perls as well).

Cheers,
Rob

[bulk88]

I got "Can't load PDL::Core module at C:/sperl/589/perl/lib/DynaLoader.pm line 249.", and "Can't load PDL::Core module" is a croak in BOOT of PLplot.dll when I did

perl -MDynaLoader -e"@PDL::Graphics::PLplot::ISA = ('DynaLoader'); Dyn
+aLoader::bootstrap('PDL::Graphics::PLplot');"

with broken dll. Are you sure you are not mixing win64 and win32 dlls/perls? Are you sure you dont have a win64 libgcc_s_dw2-1.dll in your path or dll search path http://msdn.microsoft.com/en-us/library/windows/desktop/ms682586%28v=vs.85%29.aspx#alternate_search_order_for_desktop_applications?

[syphilis]

I got "Can't load PDL::Core module at C:/sperl/589/perl/lib/DynaLoader.pm line 249." ... with broken dll.

I get that, too - with *both* broken dll *and* ok dll
With the ok dll:

C:\>pmver PDL::Graphics::PLplot
0.61

C:\>perl -MDynaLoader -e"@PDL::Graphics::PLplot::ISA = ('DynaLoader');
+ DynaLoader::bootstrap('PDL::Graphics::PLplot');"
Can't load PDL::Core module at C:/MinGW/perl589/lib/DynaLoader.pm line
+ 249.

Then switch to the broken dll:

C:\>pmver PDL::Graphics::PLplot
Can't load 'C:/MinGW/perl589/site/lib/auto/PDL/Graphics/PLplot/PLplot.
+dll' for module PDL::Graphics::PLplot: load_file:%1 is not a valid Wi
+n32 application at C:
/MinGW/perl589/lib/DynaLoader.pm line 226.
 at -e line 1
Compilation failed in require at -e line 1.

C:\>perl -MDynaLoader -e"@PDL::Graphics::PLplot::ISA = ('DynaLoader');
+ DynaLoader::bootstrap('PDL::Graphics::PLplot
');"
Can't load PDL::Core module at C:/MinGW/perl589/lib/DynaLoader.pm line
+ 249.

I don't know what to make of that - the PDL::Graphics::PLplot module is fine so long as I use the ok dll.
Doesn't this merely demonstrate that PDL::Graphics::PLplot has a dependency on PDL::Core ?

Cheers,
Rob