diff options
Diffstat (limited to 'sys/arch/sh/sh/vm_machdep.c')
| -rw-r--r-- | sys/arch/sh/sh/vm_machdep.c | 45 |
1 files changed, 43 insertions, 2 deletions
diff --git a/sys/arch/sh/sh/vm_machdep.c b/sys/arch/sh/sh/vm_machdep.c index cc2ff5dce54..db0441c37a5 100644 --- a/sys/arch/sh/sh/vm_machdep.c +++ b/sys/arch/sh/sh/vm_machdep.c @@ -1,6 +1,22 @@ -/* $OpenBSD: vm_machdep.c,v 1.7 2006/11/17 08:35:43 deraadt Exp $ */ +/* $OpenBSD: vm_machdep.c,v 1.8 2007/03/02 06:11:54 miod Exp $ */ /* $NetBSD: vm_machdep.c,v 1.53 2006/08/31 16:49:21 matt Exp $ */ +/* + * Copyright (c) 2007 Miodrag Vallat. + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice, this permission notice, and the disclaimer below + * appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ /*- * Copyright (c) 2002 The NetBSD Foundation, Inc. All rights reserved. * Copyright (c) 1982, 1986 The Regents of the University of California. @@ -36,7 +52,6 @@ * * @(#)vm_machdep.c 7.3 (Berkeley) 5/13/91 */ - /*- * Copyright (c) 1995 Charles M. Hannum. All rights reserved. * Copyright (c) 1989, 1990 William Jolitz @@ -215,6 +230,19 @@ cpu_fork(struct proc *p1, struct proc *p2, void *stack, size_t stacksize, * kernel thread begin to run without restoring trapframe. */ sf->sf_sr = PSL_MD; /* kernel mode, interrupt enable */ + +#ifdef SH4 + if (CPU_IS_SH4) { + /* + * Propagate floating point registers to the new process + * (they are not in the trapframe). + */ + if (p1 == curproc) + fpu_save(&p1->p_md.md_pcb->pcb_fp); + bcopy(&p1->p_md.md_pcb->pcb_fp, &pcb->pcb_fp, + sizeof(struct fpreg)); + } +#endif } /* @@ -222,6 +250,7 @@ cpu_fork(struct proc *p1, struct proc *p2, void *stack, size_t stacksize, */ struct md_core { struct reg intreg; + struct fpreg fpreg; }; int @@ -242,6 +271,18 @@ cpu_coredump(struct proc *p, struct vnode *vp, struct ucred *cred, if (error) return error; +#ifdef SH4 + if (CPU_IS_SH4) { + error = process_read_fpregs(p, &md_core.fpreg); + if (error) + return error; + } +#endif +#ifdef SH3 + if (CPU_IS_SH3) + bzero(&md_core.fpreg, sizeof(md_core.fpreg)); +#endif + CORE_SETMAGIC(cseg, CORESEGMAGIC, MID_MACHINE, CORE_CPU); cseg.c_addr = 0; cseg.c_size = chdr->c_cpusize; |