I would like to compile a version of the libav* libraries with tsan
knowledge. The configure script seems to have gcc-tsan as one toolchain
option. However that does not work for me, failing the compilation
test. My configure line is:
./configure --enable-gpl \
--toolchain=gcc-tsan \
--enable-shared \
--enable-pic \
--enable-gray \
--enable-runtime-cpudetect \
--enable-bzlib \
--enable-libfreetype \
--enable-libmp3lame \
--enable-libtheora \
--enable-libvorbis \
--enable-libopus \
--enable-libass \
--enable-libvpx \
--enable-libx264 \
--enable-libwebp \
--enable-zlib
The ffbuild/config.log reports at the end:
test_ld cc
test_cc
BEGIN /tmp/ffconf.AKKqustf/test.c
1 int main(void){ return 0; }
END /tmp/ffconf.AKKqustf/test.c
gcc -fsanitize=thread -fPIE -fPIC -c -o /tmp/ffconf.AKKqustf/test.o
/tmp/ffconf.AKKqustf/test.c
gcc -fsanitize=thread -pie -fPIC -o /tmp/ffconf.AKKqustf/test
/tmp/ffconf.AKKqustf/test.o
FATAL: ThreadSanitizer: unexpected memory mapping
0x55ebd936b000-0x55ebd936c000
C compiler test failed.
I am probably doing something silly and wrong. Can someone point me in
the right direction?
--
Gonzalo Garramuño
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