Re: [Mesa3d-users] undefined symbol in egl/egl_x11_swrast.so and init problems

[Keith W. <ke...@vm...>]

This may be related to the attached patch.  Please let me know if this
improves things & I'll commit

Keith

On Thu, 2010-03-11 at 07:57 -0800, Chia-I Wu wrote:
> On Thu, Mar 11, 2010 at 10:06 PM, Andreas Pokorny
> <and...@gm...> wrote:
> > Hi,
> >
> > I work on: b8656c4825b9e054f05258773ba012e41d4fcdee
> >
> > I have two rather strange problems using egl. I have implemented a
> > egl/es2/libX11 based renderer shared object file. The shared object
> > file gets loaded and initialized using dlopen/dlsym. Then when the
> > renderer is supposed to initialize EGL, and to create a window I run
> > into runtime symbol lookup errors.
> >
> > ./Startup: symbol lookup error: /usr/local/lib/egl/egl_x11_swrast.so:
> > undefined symbol: _eglInitDriverFallbacks
> It seems _eglInitDriverFallbacks in libEGL.so is not resolved when
> egl_x11_swrast.so is loaded.  I am not quite sure about your setup (who dlopen
> who?).  Do you have a sample code that reproduces your setup or the issue?
> > When I add the following to the makefiles - it seems to work.
> >
> > --- a/src/gallium/winsys/drm/swrast/egl/Makefile
> > +++ b/src/gallium/winsys/drm/swrast/egl/Makefile
> > @@ -3,7 +3,7 @@ include $(TOP)/configs/current
> >
> >  EGL_DRIVER_NAME = swrast
> >  EGL_DRIVER_SOURCES = dummy.c
> > -EGL_DRIVER_LIBS =
> > +EGL_DRIVER_LIBS = -lEGL
> >
> >  EGL_DRIVER_PIPES = \
> >        $(TOP)/src/gallium/winsys/drm/swrast/core/libswrastdrm.a \
> >
> > Then the eglInitialize() command still fails because of something else.
> >
> > When I run the application with the following settings:
> > EGL_DRIVER=egl_x11_swrast
> > EGL_SOFTWARE=1
> > EGL_DISPLAY=x11
> > EGL_LOG_LEVEL=debug
> >
> > I get:
> >
> > libEGL debug: dlopen(/usr/local/lib/egl/egl_x11_swrast.so)
> > libEGL info: use software fallback
> > libEGL warning: No supported client API
> > libEGL debug: no state tracker supports config 0x21
> > ... till ...
> > libEGL debug: no state tracker supports config 0x98
> > libEGL debug: EGL user error 0x3001 (other) in eglInitialize(unable to
> > add configs)
> > The demos in mesa/progs/egl give me the same output. While the demos
> > in mesa/progs/{es2,es1}/xegl and work. Any ideas what I am doing
> > wrong?
> >From which directory do you build your libGL?  You need to use the one from
> src/gallium/winsys/xlib (or src/gallium/targets/libgl-xlib/ in today's git).
> Have a look at the OpenGL section in docs/egl.html.
>