Mesa from git master (head 3c3a2b51b85a90cfe670e1ca81ce86c8fa0d448d) has a undefined symbol in r600_dri.so, which prevents it from being loaded:
$ LIBGL_DEBUG=verbose glxinfo
libGL: OpenDriver: trying /usr/lib64/dri/r600_dri.so
libGL error: dlopen /usr/lib64/dri/r600_dri.so failed (/usr/lib64/dri/r600_dri.so: undefined symbol: _ZTVN10__cxxabiv120__si_class_type_infoE)
libGL error: unable to load driver: r600_dri.so
libGL error: driver pointer missing
libGL error: failed to load driver: r600
--with-dri-drivers= --with-gallium-drivers=swrast,r600 --enable-gallium-llvm --enable-gallium-egl --with-egl-platforms=x11,drm --enable-gles1 --enable-gles2 --enable-glx-tls --enable-texture-float --enable-shared-glapi
I tried adding radeonsi to the list and see if this fixes it, but in order to build this I have to install LLVM 3.2, which I'm not planning to do today.
This is the commit where this problems starts:
Perhaps this bug is related: https://bugs.freedesktop.org/show_bug.cgi?id=59226
Created attachment 72916 [details] [review]
targets/dri-r600: Force c++ linker in all cases
Could you test this patch?
I made a patch myself, and it works:
--- src/gallium/targets/dri-r600/Makefile.am.orig 2013-01-12 20:00:04.000000000 +0100
+++ src/gallium/targets/dri-r600/Makefile.am 2013-01-12 21:18:15.494000000 +0100
@@ -59,17 +59,13 @@
r600_dri_la_LINK = $(CXXLINK) $(r600_dri_la_LDFLAGS)
# Mention a dummy pure C++ file to trigger generation of the $(LINK) variable
nodist_EXTRA_r600_dri_la_SOURCES = dummy-cpp.cpp
r600_dri_la_LDFLAGS += $(LLVM_LDFLAGS)
r600_dri_la_LIBADD += $(LLVM_LIBS)
-r600_dri_la_LINK = $(LINK) $(r600_dri_la_LDFLAGS)
-# Mention a dummy pure C file to trigger generation of the $(LINK) variable
-nodist_EXTRA_r600_dri_la_SOURCES = dummy-c.c
# Provide compatibility with scripts for the old Mesa build system for
I'm gonna try your patch now.
Andreas, it works, eveyrthing is fine. Thanks.
*** Bug 59296 has been marked as a duplicate of this bug. ***
Yes the patch fixes the problem.
I assume you're going to commit this soon and close this bug report.
Let's keep this bug open until the fix is actually committed.
Fixed by 9da454f295062500ebb868e31eebcd5f753f83ff
on Jul 30, 2016 at 14:57:33.
(provided by the Example extension).