On 10/06/2017 03:58 AM, Giulio Moro wrote: > On Xenomai 3.0.5, if I compile a program with the posix skin and I try to run > it with `--session=mySessionName`, it errors as it cannot find the > `--session` option. This is strange, because main() is definitely getting > wrapped: if I run `--help`, it does show some Xenomai command-line options: > --main-prio=<prio> main thread priority > --print-buffer-size=<bytes> size of a print relay buffer (16k) > --print-buffer-count=<num> number of print relay buffers (4) > --print-buffer-syncdelay=<ms> max delay of output synchronization (100 ms) > --cpu-affinity=<cpu[,cpu]...> set CPU affinity of threads > --[no-]sanity disable/enable sanity checks > --verbose[=level] set verbosity to desired level [=1] > --silent, --quiet same as --verbose=0 > --trace[=level] set tracing to desired level [=1] > --version get version information > --dump-config dump configuration settings > --help display help > > When I build a program with the Alchemy skin, then `--session` works just > fine, and `--help` displays a number of additional options: > --alchemy-clock-resolution=<ns> tick value (default 1ns, tickless) > --mem-pool-size=<size[K|M|G]> size of the main heap > --no-registry suppress object registration > --shared-registry enable public access to registry > --registry-root=<path> root path of registry > --session=<label>[/<group>] enable shared session > > I am linking with `/usr/xenomai/bin/xeno-config --ldflags --skin=posix`, > which gives the following on my system (Beaglebone Black, kernel 4.4.87) > -Wl,--no-as-needed -Wl,@/usr/xenomai/lib/cobalt.wrappers > -Wl,@/usr/xenomai/lib/modechk.wrappers /usr/xenomai/lib/xenomai/bootstrap.o > -Wl,--wrap=main -Wl,--dynamic-list=/usr/xenomai/lib/dynlist.ld > -L/usr/xenomai/lib -lcobalt -lmodechk -lpthread -lrt >
This feature is implemented by the so-called "copperplate" interface libalchemy depends on. The POSIX API does not depend on copperplate, so you don't have support for multi-process sessions when linking against libcobalt exclusively. See there http://xenomai.org/start-here/. -- Philippe. _______________________________________________ Xenomai mailing list [email protected] https://xenomai.org/mailman/listinfo/xenomai
