gdb using Windows paths in dlopen()ed modules?

Yaakov Selkowitz yselkowitz@cygwin.com
Wed Apr 13 02:17:00 GMT 2016


On 2016-04-12 10:20, Marco Atzeri wrote:
> On 22/02/2016 10:00, Yaakov Selkowitz wrote:
>> The following packages have been uploaded to the Cygwin distribution:
>>
>> * mesa-11.0.9-2
>> * dri-drivers-11.0.9-2
>> * libglapi0-11.0.9-2
>> * libGL1-11.0.9-2
>> * libGL-devel-11.0.9-2
>> * libOSMesa8-11.0.9-2
>> * libOSMesa-devel-11.0.9-2
>> * libEGL1-11.0.9-2
>> * libEGL-devel-11.0.9-2
>> * libGLESv2_2-11.0.9-2
>> * libGLESv2-devel-11.0.9-2
>> * windowsdriproto-11.0.9-2
>>
>> Mesa is an open-source implementation of the OpenGL specification, a
>> system
>> for rendering interactive 3D graphics.
>>
>> Complete documentation on OpenGL usage and configuration can be found
>> here:
>>
>> http://x.cygwin.com/docs/ug/using-glx.html
>>
>> This release has been rebuilt for LLVM 3.7.
>>
>> --
>> Yaakov
>>
>
> Hi Yaakov,
> we found a case where the 32bit is segfaulting
> while dri-drivers-11.0.9-1
> works fine.
> For reference:
> https://cygwin.com/ml/cygwin/2016-04/msg00245.html
> https://cygwin.com/ml/cygwin/2016-04/msg00251.html
>
> To replicate with octave is enough :
> run from xterm
>    /usr/bin/octave-cli-4.0.1.exe
>
>   x=1:100;
>   plot(x,x)
>
> as dri-drivers seems absent from mesa-debuginfo
> I can not provide you a meaningful backtrace:
>
> #0  0xfc6d00a0 in ?? ()
> #1  0x43934357 in gallium_dri!__driDriverGetExtensions_swrast ()
>     from E:/cygwin/lib/dri/swrast_dri.so
[snip]
 > #14 0x4fc1ae48 in glutJoystickGetCenter () from /usr/bin/cygglut-3.dll

Corinna,

I'm seeing this as well.  Any idea why gdb is using with dlopen()ed 
modules?  This is preventing it from finding the split debuginfo.

-- 
Yaakov

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