From: Philippe Gerum <rpm@xenomai.org>
To: Danilo De Lorenzo <danilo.delorenzo@mail.polimi.it>
Cc: Xenomai@xenomai.org
Subject: Re: [Xenomai] error on building xddp-echo example
Date: Thu, 19 Jul 2012 21:21:46 +0200 [thread overview]
Message-ID: <50085E4A.3090306@xenomai.org> (raw)
In-Reply-To: <CAHpmwf_XO1G=6fMiddivbG+ud0FZqjh6_sp0V=zEv+mstOKorQ@mail.gmail.com>
On 07/19/2012 07:18 PM, Danilo De Lorenzo wrote:
> I'm getting this error when compiling the examples in the ipc folder
>
> gcc -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 -lrtdm -Xlinker -rpath -Xlinker
> /usr/xenomai/lib xddp-echo.c -o xddp-echo
>
> /usr/bin/ld: /tmp/cc4VCXFp.o: undefined reference to symbol
> 'pthread_sigmask@@GLIBC_2.2.5'
> /usr/bin/ld: note: 'pthread_sigmask@@GLIBC_2.2.5' is defined in DSO
> /lib/x86_64-linux-gnu/libpthread.so.0 so try adding it to the linker
> command line
> /lib/x86_64-linux-gnu/libpthread.so.0: could not read symbols: Invalid
> operation
> collect2: ld returned 1 exit status
> make: *** [xddp-echo] Error 1
>
> Is this a xenomai bug or glibc library bug?
Linker wants to see references first, for pulling symbols. Does this help?
diff --git a/examples/rtdm/profiles/ipc/Makefile b/examples/rtdm/profiles/ipc/Makefile
index 15da135..4ea38f0 100644
--- a/examples/rtdm/profiles/ipc/Makefile
+++ b/examples/rtdm/profiles/ipc/Makefile
@@ -39,6 +39,9 @@ CFLAGS=$(shell $(XENOCONFIG) --skin=posix --cflags) $(MY_CFLAGS)
LDFLAGS=$(shell $(XENOCONFIG) --skin=posix --ldflags) $(MY_LDFLAGS) -lrtdm
+%: %.c
+ $(CC) -o $@ $< $(CFLAGS) $(LDFLAGS)
+
# Add the Xenomai libdir to the runtime library search path for the
# binary, to make life easier for beginners if Xenomai's libs are not
# in any default search path.
>
> Thanks
>
> Danilo
> _______________________________________________
> Xenomai mailing list
> Xenomai@xenomai.org
> http://www.xenomai.org/mailman/listinfo/xenomai
>
--
Philippe.
next prev parent reply other threads:[~2012-07-19 19:21 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CAHpmwf8eKDCN-4mzSpsgu64H+Kez_A+NPaqDCWOD8qHnU0oTmw@mail.gmail.com>
2012-07-19 17:18 ` [Xenomai] error on building xddp-echo example Danilo De Lorenzo
2012-07-19 17:37 ` Danilo De Lorenzo
2012-07-19 19:21 ` Philippe Gerum [this message]
2012-07-20 9:19 ` Danilo De Lorenzo
2012-07-21 18:35 ` Philippe Gerum
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