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Groups > linux.debian.devel > #101612

Re: Wine MinGW system libraries

From Paul Wise <pabs@debian.org>
Newsgroups linux.debian.devel
Subject Re: Wine MinGW system libraries
Date 2021-09-09 07:20 +0200
Message-ID <CVkDD-3pF-3@gated-at.bofh.it> (permalink)
References (8 earlier) <CV0vf-7wz-1@gated-at.bofh.it> <CV0Yi-7W8-11@gated-at.bofh.it> <CV7ZL-3Qu-3@gated-at.bofh.it> <CVgTn-VZ-1@gated-at.bofh.it> <CVkaB-2YX-1@gated-at.bofh.it>
Organization Debian

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On Wed, 2021-09-08 at 23:47 -0500, Zebediah Figura wrote:

> Unfortunately, while thinking about the answer to this question, I 
> realized another snag, which I think really does make using 
> identically-named dynamic libraries impossible: if system library A 
> loads system library B dynamically, i.e. does the equivalent of a 
> dlopen(), we have no way of knowing which namespace to apply to it. 
> [AFAICT dlmopen() has this problem too, and just isn't meant for that
> use case.] Even rewriting the import table doesn't help here.

While loading library A into a namespace Foo, the loader could set a
process global variable containing the current namespace to load into,
and then have the dlopen equivalent use namespace Foo in preference to
the default namespace for the process. Then when library B is loaded it
will go into namespace Foo. Once loading library B and A has completed
the loader could revert to using the default namespace.

-- 
bye,
pabs

https://wiki.debian.org/PaulWise

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Thread

Wine MinGW system libraries Zebediah Figura <zfigura@codeweavers.com> - 2021-09-05 03:40 +0200
  Re: Wine MinGW system libraries Bastien ROUCARIES <roucaries.bastien@gmail.com> - 2021-09-05 09:20 +0200
    Re: Wine MinGW system libraries Stephen Kitt <skitt@debian.org> - 2021-09-05 18:30 +0200
    Re: Wine MinGW system libraries Adrian Bunk <bunk@debian.org> - 2021-09-12 10:00 +0200
      Re: Wine MinGW system libraries Bastien ROUCARIES <roucaries.bastien@gmail.com> - 2021-09-12 15:40 +0200
        Re: Wine MinGW system libraries Adrian Bunk <bunk@debian.org> - 2021-09-12 16:10 +0200
          Re: Wine MinGW system libraries Bastien ROUCARIES <roucaries.bastien@gmail.com> - 2021-09-12 16:20 +0200
            Re: Wine MinGW system libraries Adrian Bunk <bunk@debian.org> - 2021-09-12 16:40 +0200
              Re: Wine MinGW system libraries Bastien ROUCARIES <roucaries.bastien@gmail.com> - 2021-09-12 17:20 +0200
                Re: Wine MinGW system libraries Adrian Bunk <bunk@debian.org> - 2021-09-12 17:30 +0200
            Re: Wine MinGW system libraries Helmut Grohne <helmut@subdivi.de> - 2021-09-13 17:50 +0200
              Re: Wine MinGW system libraries Stephen Kitt <skitt@debian.org> - 2021-09-13 20:20 +0200
                Re: Wine MinGW system libraries Helmut Grohne <helmut@subdivi.de> - 2021-09-13 22:10 +0200
                Re: Wine MinGW system libraries Adrian Bunk <bunk@debian.org> - 2021-09-13 22:30 +0200
                Re: Wine MinGW system libraries Bastien ROUCARIES <roucaries.bastien@gmail.com> - 2021-09-13 23:00 +0200
                Re: Wine MinGW system libraries Adrian Bunk <bunk@debian.org> - 2021-09-13 23:40 +0200
      Re: Wine MinGW system libraries Stephen Kitt <skitt@debian.org> - 2021-09-12 17:40 +0200
        Re: Wine MinGW system libraries Adrian Bunk <bunk@debian.org> - 2021-09-12 18:40 +0200
          Re: Wine MinGW system libraries Stephen Kitt <skitt@debian.org> - 2021-09-12 19:10 +0200
            Re: Wine MinGW system libraries Adrian Bunk <bunk@debian.org> - 2021-09-12 20:20 +0200
              Re: Wine MinGW system libraries Stephen Kitt <skitt@debian.org> - 2021-09-13 20:30 +0200
  Re: Wine MinGW system libraries Stephen Kitt <skitt@debian.org> - 2021-09-05 18:20 +0200
    Re: Wine MinGW system libraries Zebediah Figura <zfigura@codeweavers.com> - 2021-09-05 19:20 +0200
      Re: Wine MinGW system libraries Stephen Kitt <skitt@debian.org> - 2021-09-06 09:10 +0200
        Re: Wine MinGW system libraries Bastien ROUCARIES <roucaries.bastien@gmail.com> - 2021-09-06 10:20 +0200
        Re: Wine MinGW system libraries Zebediah Figura <zfigura@codeweavers.com> - 2021-09-06 18:40 +0200
          Re: Wine MinGW system libraries Bastien ROUCARIES <roucaries.bastien@gmail.com> - 2021-09-06 21:00 +0200
            Re: Wine MinGW system libraries Zebediah Figura <zfigura@codeweavers.com> - 2021-09-07 00:00 +0200
              Re: Wine MinGW system libraries Paul Wise <pabs@debian.org> - 2021-09-07 02:50 +0200
                Re: Wine MinGW system libraries "Bastien Roucariès" <roucaries.bastien@gmail.com> - 2021-09-07 12:40 +0200
                Re: Wine MinGW system libraries Zebediah Figura <zfigura@codeweavers.com> - 2021-09-07 17:50 +0200
                Re: Wine MinGW system libraries Bastien ROUCARIES <roucaries.bastien@gmail.com> - 2021-09-07 19:30 +0200
                Re: Wine MinGW system libraries Bastien ROUCARIES <roucaries.bastien@gmail.com> - 2021-09-07 20:20 +0200
                Re: Wine MinGW system libraries Zebediah Figura <zfigura@codeweavers.com> - 2021-09-07 23:20 +0200
                Re: Wine MinGW system libraries Bastien ROUCARIES <roucaries.bastien@gmail.com> - 2021-09-08 01:50 +0200
                Re: Wine MinGW system libraries Bastien ROUCARIES <roucaries.bastien@gmail.com> - 2021-09-08 09:50 +0200
                Re: Wine MinGW system libraries Simon McVittie <smcv@debian.org> - 2021-09-08 10:20 +0200
                Re: Wine MinGW system libraries Zebediah Figura <zfigura@codeweavers.com> - 2021-09-08 17:50 +0200
                Re: Wine MinGW system libraries Paul Wise <pabs@debian.org> - 2021-09-09 03:20 +0200
                Re: Wine MinGW system libraries Zebediah Figura <zfigura@codeweavers.com> - 2021-09-09 06:50 +0200
                Re: Wine MinGW system libraries Paul Wise <pabs@debian.org> - 2021-09-09 07:20 +0200
                Re: Wine MinGW system libraries Zebediah Figura <zfigura@codeweavers.com> - 2021-09-09 07:40 +0200
                Re: Wine MinGW system libraries Paul Wise <pabs@debian.org> - 2021-09-09 07:50 +0200
                Re: Wine MinGW system libraries Zebediah Figura <zfigura@codeweavers.com> - 2021-09-09 08:10 +0200
                Re: Wine MinGW system libraries Paul Wise <pabs@debian.org> - 2021-09-09 09:40 +0200
                Re: Wine MinGW system libraries Bastien ROUCARIES <roucaries.bastien@gmail.com> - 2021-09-10 11:50 +0200
                Re: Wine MinGW system libraries Paul Wise <pabs@debian.org> - 2021-09-11 08:10 +0200
                Re: Wine MinGW system libraries Bastien ROUCARIES <roucaries.bastien@gmail.com> - 2021-09-12 17:20 +0200
                Re: Wine MinGW system libraries Paul Wise <pabs@debian.org> - 2021-09-08 01:10 +0200
                Re: Wine MinGW system libraries Bastien ROUCARIES <roucaries.bastien@gmail.com> - 2021-09-08 01:30 +0200
  Re: Wine MinGW system libraries Adrian Bunk <bunk@debian.org> - 2021-09-11 17:40 +0200
    Re: Wine MinGW system libraries Bastien ROUCARIES <roucaries.bastien@gmail.com> - 2021-09-11 20:10 +0200
  Re: Wine MinGW system libraries Zebediah Figura <zfigura@codeweavers.com> - 2022-04-17 02:30 +0200

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