On 05/08/2012 05:13 AM, Vikram Dhillon wrote: > Hi all, > > I recently compiled and installed a xenomai patched kernel but I am > currently having some issues compiling sample code that came with the > xenomai kernel. So here's what is happening: > > ================================================================================================= > root@zion:/usr/src/xenomai-2.6.0/examples/posix# make > XENO=/usr/xenomai/ KSRC=/usr/src/linux-2.6.38.8-xenomai/ > --xeno-cflags is deprecated, use --skin=name --cflags instead > --xeno-ldflags is deprecated, use --skin=name --ldflags instead > gcc -DCONSUMER -I/usr/xenomai/include -D_GNU_SOURCE -D_REENTRANT -Wall > -Werror-implicit-function-declaration -pipe -D__XENO__ > -I/usr/xenomai/include/posix -Wl,@/usr/xenomai/lib/posix.wrappers > -L/usr/xenomai/lib -lpthread_rt -lxenomai -lpthread -lrt -Xlinker > -rpath -Xlinker /usr/xenomai/lib satch.c -o satch > /usr/bin/ld: /tmp/ccLV0g8I.o: undefined reference to symbol > 'pthread_cancel@@GLIBC_2.0' > /usr/bin/ld: note: 'pthread_cancel@@GLIBC_2.0' is defined in DSO > /lib/i386-linux-gnu/libpthread.so.0 so try adding it to the linker > command line > /lib/i386-linux-gnu/libpthread.so.0: could not read symbols: Invalid operation > collect2: ld returned 1 exit status > make: *** [satch] Error 1 > =================================================================================================
This is a strange error, are you sure you are not mixing a 64 bits toolchain with 32 bits libraries? Did xenomai compilation run correctly otherwise? Do xenomai tests run, such as latency for instance? > > > Linker issue here, the program satch in posix directory won't compile, > first change in the posix makefile: > ================================================================================================= > CFLAGS=-DCONSUMER $(shell $(XENOCONFIG) --skin=posix --cflags) $(APP_CFLAGS) > LDFLAGS=$(shell $(XENOCONFIG) --skin=posix --ldflags) $(APP_LDFLAGS) > ================================================================================================= > > > Then, the program still doesn't compile so I actually had to remove > the lpthread switch in compiling: > ================================================================================================= > vikram@zion:/usr/src/xenomai-2.6.0/examples/posix$ gcc -DCONSUMER > -I/usr/xenomai/include -D_GNU_SOURCE -D_REENTRANT -Wall > -Werror-implicit-function-declaration -pipe -D__XENO__ > -I/usr/xenomai/include/posix -Wl,@/usr/xenomai/lib/posix.wrappers > -L/usr/xenomai/lib -lpthread_rt -lxenomai -lrt -Xlinker -rpath > -Xlinker /usr/xenomai/lib satch.c -o satch > vikram@zion:/usr/src/xenomai-2.6.0/examples/posix$ ls > Makefile Makefile~ README satch satch.c > vikram@zion:/usr/src/xenomai-2.6.0/examples/posix$ ./satch > Xenomai: binding failed: Operation not permitted. > ================================================================================================= > > Can anyone tell me what is causing the issue here? Thanks! This one usually means that you are not running the example as root user. > > - Vikram > > _______________________________________________ > Xenomai-help mailing list > Xenomai-help@gna.org > https://mail.gna.org/listinfo/xenomai-help > -- Gilles. _______________________________________________ Xenomai-help mailing list Xenomai-help@gna.org https://mail.gna.org/listinfo/xenomai-help
