Re: firefox-112

[Izumi Tsutsui <tsutsui%ceres.dti.ne.jp@localhost>]

> 4. It turns out our xsrc Mesa had an old TLS patch from tnn@ in pkgsrc
>    Mesa, dating to 2019, which introduced the definition of
>    _glapi_tls_Context into libGL.so:
> 
>       commit e81a0f50af920255e5c0c0df06ae2d08d5cdc554
>       Author: maya <maya%NetBSD.org@localhost>
>       Date:   Tue Apr 9 14:14:59 2019 +0000
> 
>           Add workaround for non-zero initialized initial-exec TLS variables.
>           NetBSD doesn't support these with dlopen.
> 
>           Ref:
>           https://bugs.freedesktop.org/show_bug.cgi?id=35268
>           https://mail-index.netbsd.org/pkgsrc-users/2015/09/11/msg022180.html
>           http://gnats.netbsd.org/50277
> 
>           Fixes dlopen of libGL reported by prlw1 on current users.
>           From tnn, via pkgsrc/graphics/MesaLib*.
> 
>    That patch was since updated by tnn@ in 2020:
> 
>       commit 0e33e24256c28aed530eb25e07d1c2f23bdf1e12
>       Author: tnn <tnn%pkgsrc.org@localhost>   
>       Date:   Wed Feb 19 21:03:41 2020 +0000
> 
>           MesaLib: fix issues in TLS dispatch code on NetBSD/amd64. Bump.
> 
>           - workaround for toolchain/50277 had bitrotted after meson switch
>           - make tls dispatch stub template behave correct (with input from joerg@)
>           - double alignment of stubs to accommodate slightly larger code size
> 
>           Fixes among other things Xorg crash in glamor_egl_init().
> 
>    But we have not applied the updated patch to xsrc.

BTW,

- netbsd-9 has patched one in xsrc/external/mit/MesaLib
  but not in xsrc/external/mit/MesaLib.old
- in netbsd-9 xsrc/external/mit/MesaLib is for HAVE_MESA_VER=18,
  xsrc/external/mit/MesaLib.old is for HAVE_MESA_VER=10, and
  HAVE_MESA_VER=18 (i.e. MesaLib) is the default

- netbsd-10 also has patched one in xsrc/external/mit/MesaLib
  but not in xsrc/external/mit/MesaLib.old
- in netbsd-10 xsrc/external/mit/MesaLib is for HAVE_MESA_VER=21,
  xsrc/external/mit/MesaLib.old is for HAVE_MESA_VER=19, and
  HAVE_MESA_VER=19 (i.e. MesaLib.old) is the default

I'm not sure if these transitions are intentional.

---
Izumi Tsutsui