From mboxrd@z Thu Jan  1 00:00:00 1970
From: Erik Sommer <erik.sommer@domain.hid>
In-Reply-To: <414be62.7ed9feda.4ecf92ea.afbae@domain.hid>
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	<414be62.7ed9feda.4ecf92ea.afbae@domain.hid>
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Date: Fri, 25 Nov 2011 14:33:30 +0100
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Subject: Re: [Xenomai-help] can't link math.h in a userspace programm
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To: Robert <robert-km@domain.hid>
Cc: xenomai@xenomai.org

Hello,

thanks for the help. This was only one of the faults. But I have fixed
it now.

Erik
Am Freitag, den 25.11.2011, 14:06 +0100 schrieb Robert:
> Hi,
> have You tried to add '-lm' to LDFLAGS?
> It adds math library while linking program.
> 
> 
> Dnia 23 listopada 2011 10:38 Erik Sommer <erik.sommer@domain.hid> napisał(a):
> 
> > Hello,
> > 
> > I'm programming a userspace Xenomai-Programm für a Xilinx PowerPC
> > (additional Information without FPU). I include the math.h because I
> > have to use arcustangens and arcuscosinus. When compiling the programm
> > it seems so like the linker can't do his job for math.h.
> > 
> > minimal example:
> > 
> > "
> > #include <stdbool.h>// boolescher Datentyp
> > #include <native/task.h>
> > #include <native/timer.h>
> > #include <rtdm/rtdm.h>
> > #include <sys/mman.h>
> > #include <stdio.h>
> > #include <fcntl.h>
> > #include <unistd.h>
> > #include <math.h>
> > 
> > void user_task(void *cookie){
> > ...
> > Vektor.y_w=0.5*atan(Vektor.y/reg->l_O);
> > ...
> > }
> > "
> > 
> > the Makefile:
> > 
> > "
> > # Name der zu erstellenden Programmdatei
> > PROG=pu10_Las_Vek
> > 
> > # Liste der C-Dateien im Verzeichnis
> > C_DAT=$(wildcard *.c)
> > 
> > 
> > # Variablen für die Benutzung des ELDK-Compilers
> > ARCH=powerpc
> > 
> > #Xenomai Installations Pfad
> > DESTDIR=../usersupport/root
> > #DESTDIR=/mnt/albatros_projekte/PU10/pu10_sw/PU10_Xenomai/xenomai_build/root
> > XENO := $(DESTDIR)/usr/xenomai
> > 
> > XENOCONFIG=$(shell PATH=$(XENO):$(XENO)/bin:$(PATH) which xeno-config
> > 2>/dev/null)
> > 
> > CC=$(shell $(XENOCONFIG) --cc)
> > 
> > CFLAGS=$(shell export DESTDIR="$(DESTDIR)"; $(XENOCONFIG) --skin native
> > --cflags) $(MY_CFLAGS)
> > 
> > LDFLAGS=$(shell export DESTDIR="$(DESTDIR)"; $(XENOCONFIG) --skin native
> > --ldflags) $(MY_LDFLAGS) -lnative -lrtdm
> > 
> > #Xenomai Library Pfad in binary hinzufügen
> > LPATH=/usr/xenomai/lib
> > #LDFLAGS+=-Xlinker -rpath -Xlinker $(shell $(XENOCONFIG) --libdir)
> > LDFLAGS+=-Xlinker -rpath -Xlinker $(LPATH) 
> > 
> > $(PROG):: 
> > 	$(CC) -Wall $(CFLAGS) $(LDFLAGS) -L/usr/lib -I/usr/include
> > $(C_DAT) ../defines.h ../regbank.h -o $(PROG)	
> > 
> > clean::
> > 	$(RM) $(PROG) *.o
> > "
> > 
> > I hope for some hints.
> > 
> > Erik 
> > 
> > 
> > 
> > 
> > _______________________________________________
> > Xenomai-help mailing list
> > Xenomai-help@domain.hid
> > https://mail.gna.org/listinfo/xenomai-help
> >