-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Dear List Members,
First of all, this will be a newbie question, sorry for it. Shortly, I have to port an old RTAI based kernelspace application to Xenomai userpace. This application uses FPU so we compile it hard float support. First step of the porting is switching the real-time extension. I am done with this, however I have some compilation warnings: WARNING: "_restfpr_22_x" [app.ko] undefined! WARNING: "_restfpr_29_x" [app.ko] undefined! WARNING: "_savefpr_22" [app.ko] undefined! WARNING: "_savefpr_29" [app.ko] undefined! I reproduced these warnings with the following example kernel module: http://pastebin.com/AAehcivx The corresponding Kbuild is: obj-m := fpu_test.o ccflags-y += -Iinclude/xenomai -Iinclude/xenomai/posix -mhard-float As I see, the missing functions should be in the C runtime library, however the kernel library (arch/powerpc/lib/crtsavres.S) contains only save/restore macros for general purpose registers. On the other hand, the Xenomai extensions provides kernelspace FPU facility and the T_FPU flag was turned on rt_task_create(). So, my question is, how can I eliminate this problem? The environment is the following: Toolchain: ELDK-5.2.1, powerpc, hard float. Kernel: linux-v3.2.21 Xenomai: v2.6.1 Any suggestion is highly appreciated. Thank you in advance! - -- Best regards, Norbert Bukuli -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBAgAGBQJRG5TkAAoJEJEs22zQJ00S86IIAIh0vYdLf5++r+0EZSkSGGD+ Mui9k9h4huRmUo31H9rWMJvU/DkJHAKrvoR/QBpQ1L6ty6xyeOoYhwzpEbW9e9TO uy9nxBeB3ORg6RFV6NLKaP6iifgifYJKkT89mEjts8hbXNoRyxZHJUNJuQtDNh45 JB3EuGKbjB5ItISXJupeKE4CXGMRHKxcHBiM3l1Nxq+zwrO+/CyGWtO+ZjWzEN4/ fiWIBMm3g/p82+KxTqTQLmmOA0/0aAZcO02mw/v8/dPm8Ty+K9jB0cIsakPifehm gDUVlg1r/uNEaj4KVc0exE6zdiWwhIq3brYAxfzbCeEpc4b+MeFDNyggYE8vi2M= =FKk7 -----END PGP SIGNATURE----- _______________________________________________ Xenomai mailing list [email protected] http://www.xenomai.org/mailman/listinfo/xenomai
