Move landisk to hardware floating point. At the moment the FPU context is

always saved upon context switches, as FPU registers are heavily used for
long long computations (don't ask). Gcc default to -m4.

Credits to drahn@ otto@ and deraadt@ for feedback and help testing.

Upgrade procedure if you don't want to use the damn snapshots:
- build and install new kernel, reboot off it
- build new gcc, do not install it yet
- make includes
- install new gcc
- build and install lib/csu and lib/libc
- make build

1 files changed, 4 insertions, 1 deletions

diff --git a/sys/arch/sh/include/cpu.h b/sys/arch/sh/include/cpu.h
index 28bd05964d9..721d3275b77 100644
--- a/sys/arch/sh/include/cpu.h
+++ b/sys/arch/sh/include/cpu.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: cpu.h,v 1.4 2007/01/15 22:22:19 martin Exp $	*/
+/*	$OpenBSD: cpu.h,v 1.5 2007/03/02 06:11:54 miod Exp $	*/
 /*	$NetBSD: cpu.h,v 1.41 2006/01/21 04:24:12 uwe Exp $	*/
 
 /*-
@@ -204,6 +204,9 @@ void _cpu_spin(uint32_t);	/* for delay loop. */
 void delay(int);
 struct pcb;
 void savectx(struct pcb *);
+struct fpreg;
+void fpu_save(struct fpreg *);
+void fpu_restore(struct fpreg *);
 void dumpsys(void);
 #endif /* _KERNEL */
 #endif /* !_SH_CPU_H_ */