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How do you debug X86_64 relocation errors
- From: sean <seandarcy2 at gmail dot com>
- To: binutils at sources dot redhat dot com
- Date: Fri, 19 Aug 2005 22:58:42 -0400
- Subject: How do you debug X86_64 relocation errors
I'm trying to build ffmpeg on amd64, which has a x264
plugin. I built x264 with -fPIC which gives x264.a (dunno
why the devs only want a static lib).
When I try to build ffmpeg - also with -fPIC, I get:
gcc -shared -o libavcodec.so bitstream.o utils.o mem.o
allcodecs.o mpegvideo.o jrevdct.o jfdctfst.o jfdctint.o
[..........]
vorbis.o vp3.o vqavideo.o wmadec.o wnv1.o ws-snd1.o xan.o
xl.o pthread.o faad.o faac.o xvidff.o x264.o
libpostproc/postprocess.o mp3lameaudio.o oggvorbis.o
oggtheora.o -lm -lx264 -lz -ldl -lpthread -L../libavutil
-lavutil -lfaac -lxvidcore -lx264 -lmp3lame -lvorbisenc
-lvorbis -ltheora -logg -Wl,--warn-common -rdynamic -ldl
-I/usr/X11R6/include/X11
/usr/bin/ld:
/usr/lib/gcc/x86_64-redhat-linux/4.0.1/../../../../lib64/libx264.a(dct-a.o):
relocation R_X86_64_32 against `a local symbol' can not be
used when making a shared object; recompile with -fPIC
/usr/lib/gcc/x86_64-redhat-linux/4.0.1/../../../../lib64/libx264.a:
could not read symbols: Bad value
I've strewn -fPIC's all over the place. What else do you
look for?
sean