[FFmpeg-trac] #1713(build system:closed): Linkage fails due to relocations
FFmpeg
trac at avcodec.org
Fri Dec 7 08:52:51 CET 2012
#1713: Linkage fails due to relocations
-------------------------------------+-------------------------------------
Reporter: Krieger | Owner:
Type: defect | Status: closed
Priority: normal | Component: build
Version: git-master | system
Keywords: | Resolution: invalid
Blocking: | Blocked By:
Analyzed by developer: 0 | Reproduced by developer: 0
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Comment (by cehoyos):
Replying to [comment:3 rminsk]:
> Replying to [comment:1 Krieger]:
> > This is fixed by adding -Wl,-Bsymbolic to last linkage command:
> > {{{
> > gcc -fPIC -shared -o mylib.so mylib.o -Wl,-Bdynamic
$FFMPEG_PATH/libav{format,codec,util}.a
> > }}}
>
> Sorry about commenting on a closed case. I have the exact same problem.
I have compiled static libraries for ffmpeg with --enable-pic. Adding
-Wl,-Bdynamic did not help.
That would indicate that you do not have the same problem, but ...
> {{{
> g++ -fPIC -L/tools/shed/opensource/ffmpeg/1.0.1/payload/lib64
-L../../lib -shared audio.o lqt_ffmpeg.o params.o video.o -o lqt_ffmpeg.so
-Wl,-Bdynamic -lquicktime -lavformat -lavcodec -lswscale -lavutil -Wl
,--no-whole-archive
> /usr/bin/ld:
/tools/shed/opensource/ffmpeg/1.0.1/payload/lib64/libavcodec.a(h264_cabac.o):
relocation R_X86_64_PC32 against `ff_h264_cabac_tables' can not be used
when making a shared object; recompile with -fPIC
> /usr/bin/ld: final link failed: Bad value
> collect2: ld returned 1 exit status
> make: *** [lqt_ffmpeg.so] Error 1
> }}}
... please add the output if you add -Wl,-Bsymbolic to the command.
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1713#comment:4>
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