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yani is offline yani
2008-03-27 , 14:07
Posts: 35 | Thanked: 18 times | Joined on Dec 2007
#1
Hi everyone,

I've been busy porting mythtv to OS2008 recently, however I haven't been able to include the ARMv4l/ARM5vte or ARMV6 assembler optimized libavcodec code because the default toolchain that scratchbox uses errors out with the following error whenever I try

gcc -c -pipe -fomit-frame-pointer -O3 -DNDEBUG -fPIC -DPIC -pthread -g -Wall -Wno-switch -Wdisabled-optimization -Wpointer-arith -Wredundant-decls -w -D_REENTRANT -DPIC -fPIC -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -DPREFIX=\"/usr\" -DLIBDIR=\"/usr/lib\" -DHAVE_AV_CONFIG_H -D_LARGEFILE_SOURCE -DQT_THREAD_SUPPORT -DQT_SHARED -DQT_TABLET_SUPPORT -I/usr/share/qt3/mkspecs/default -I. -I. -I.. -I../.. -I../libavutil -I../libswscale -I/targets/CHINOOK_ARMEL/usr/include/qt3 -o dsputil.o dsputil.c
dsputil.c: In function `rd8x8_c':
dsputil.c:3514: internal compiler error: in assign_stack_temp_for_type, at function.c:658
Please submit a full bug report,
with preprocessed source if appropriate.
Send email to arm-gnu@codesourcery.com for instructions.
make[3]: *** [dsputil.o] Error 1
make[3]: Leaving directory `/home/yani/mythbuild/mythtv-0.21/libs/libavcodec'
make[2]: *** [sub-libavcodec] Error 2
make[2]: Leaving directory `/home/yani/mythbuild/mythtv-0.21/libs'
make[1]: *** [sub-libs] Error 2
make[1]: Leaving directory `/home/yani/mythbuild/mythtv-0.21'
make: *** [build-stamp] Error 2
However when I use the cs2007q3-glibc2.5-arm7 toolchain in the scratchbox everything compiles fine, but trying to run on the N810 I get

Nokia-N810-50-2:~# mythfrontend
mythfrontend: /usr/lib/libstdc++.so.6: version `GLIBCXX_3.4.9' not found (required by mythfrontend)
So obviously the cs2007q3-glibc2.5-arm7 toolchain is compiled against a newer glibc++ than on the devices :-(

Does anyone have a toolchain that would be able to deal with the assembly code, or have any pointers on how to build my own version of the cs2007q3-glibc2.5-arm7 toolchain against the older glibc++?
 
Serge is offline Serge
2008-03-27 , 16:06
Posts: 503 | Thanked: 267 times | Joined on Jul 2006 @ Helsinki
#2
This problem has been already fixed in ffmpeg SVN and the patch (with the explanation of the problem - both gcc and ffmpeg are at fault) can be found here:
http://lists.mplayerhq.hu/pipermail/...ry/042058.html
 
yani is offline yani
2008-03-27 , 16:25
Posts: 35 | Thanked: 18 times | Joined on Dec 2007
#3
Thanks a lot! :-) I'm going to try the patch now, perhaps I should just use your mplayer libavcodec code though, were there any other significant changes you made to it?

By the way what tool chain do you use for building mplayer?
Last edited by yani; 2008-03-27 at 16:27.
 
Serge is offline Serge
2008-03-27 , 17:15
Posts: 503 | Thanked: 267 times | Joined on Jul 2006 @ Helsinki
#4
Originally Posted by yani View Post
Thanks a lot! :-) I'm going to try the patch now, perhaps I should just use your mplayer libavcodec code though, were there any other significant changes you made to it?
There were some changes. But upgrade to more recent upstream version is now needed anyway.

By the way what tool chain do you use for building mplayer?
Just a standard toolchain from maemo SDK.
 
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