[Xorg] [PATCH] fix configure.ac and Makefile.am to allow x86emu

Daniel Stone daniel at freedesktop.org
Wed Jul 14 11:14:01 PDT 2004

On Wed, Jul 14, 2004 at 05:47:12PM +0200, Kristian H??gsberg wrote:
> Jakub Piotr C??apa wrote:
> >Kristian H??gsberg wrote:
> >>Yes, I have the i830 driver running, but there were other problems: 
> >>since libvbe.a and libfb.a are linked into the Xorg binary at link 
> >>time, the linker throws aways .o files from the .a file that aren't 
> >>used by the server binary, e.g.
> >>
> >>[krh at dinky debrix]$ nm Xorg |grep fbPi
> >>0812b650 T fbPixmapToRegion
> >>
> >>no fbPictureInit, but maybe I'm doing something wrong? This happens to 
> >>vbeModes.o and fbpict.o so I added dummy references to symbols in 
> >>those files to get them linked in.  I810VideoInit() segfaults, but I 
> >>disabled that for now and then it works.
> >
> >
> >I posted a patch for this here. Look in the archives. The explanation of 
> >how is the symbol garbage collection working can also be found there.
> It's just the difference between linking against libvbe.a vs. linking 
> against the object files directly.  When you link against an archive, 
> the linker only includes those .o files that contain symbols referenced 
> by the application.  This is why it's enough to only reference one 
> symbol from each file to get it linked in.  On the other hand, if you 
> list the object files explicitly on the link command line all the object 
>  files are added to the application, wether or not they are used.
> Anyway, to get i830 going I added fbPictureInit and VBEGetModePool to 
> xf86sym.c:
> --- orig/hw/xorg/loader/xf86sym.c
> +++ mod/hw/xorg/loader/xf86sym.c
> @@ -1216,5 +1216,9 @@
>      /* shadowfb */
>      SYMFUNC(ShadowFBInit)
> +    /* KRH: Hack to pull in symbol defined in otherwise unused .o files */
> +    SYMFUNC(VBEGetModePool)
> +    SYMFUNC(fbPictureInit)
> +
>      {0, 0}
>  };

Thanks - merged as
daniel at fooishbar.org--2004/debrix--devel--0.1--patch--4.

For instructions on getting my archive via arch, please see
http://debrix.freedesktop.org - I intend to have a CVS mirror up soon.

Daniel Stone                                            <daniel at freedesktop.org>
freedesktop.org: powering your desktop                http://www.freedesktop.org
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