Teresa Noviello wrote: > Hi! > I'm working with 989 svn version for the example > > examples/xenomai/posix/rtt-sender.c > > I'm trying to adapt the example to rtai-3.3. > > I have a problem compiling with these command lines: > > gcc - c -Wall -ggdb -o rtt-sender.o -I/usr/realtime/include > -I/usr/src/rtnet/trunk/rtnet/stack/include rtt-sender.c > > gcc -o rtt-sender -L/usr/realtime/lib -llxrt -lrtdm -lrt > rtt-sender.o-lpthread > > The program "rtt-sender" is successfully compiled so but the executable > works until the instruction > > "mq_open": there it gives Segmentation Fault. > > Compiling with: > > gcc - c -Wall -ggdb -o rtt-sender.o -I/usr/realtime/include > -I/usr/src/rtnet/trunk/rtnet/stack/include rtt-sender.c > > gcc -o rtt-sender -L/usr/realtime/lib -llxrt -lrtdm -lrt -lmqueue > rtt-sender.o -lpthread > > I have > > "ld: cannot find -lmqueue > collect2: ld returned 1 exit status > make: *** [sender] Error 1" > > Why? I have not got the mqueue dynamic library, is it so? > How can i install it? Can you link a tutorial for this? I've searched > for it > all day without results! > Do i have to patch the kernel to have mqueue compatibility?? >
The rtt-sender makes use of Xenomai's POSIX-conforming real-time mqueues (=>POSIX skin). So you have to look for something comparable on RTAI, either some wrapper (there used to exists something, but I don't know its current status) or RTAI-specific message queuing functions. Jan
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