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Initialise the FPSCR to a sane value.

This commit is contained in:
scw 2003-01-20 20:09:59 +00:00
parent 3f4a1907c6
commit 11e9fa3a9b
2 changed files with 15 additions and 3 deletions
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8
lib/libc/arch/sh5/gen/_lwp.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: _lwp.c,v 1.1 2003/01/19 23:05:01 scw Exp $ */
/* $NetBSD: _lwp.c,v 1.2 2003/01/20 20:09:59 scw Exp $ */
/*-
* Copyright (c) 2001 The NetBSD Foundation, Inc.
@ -40,6 +40,7 @@
#include <ucontext.h>
#include <lwp.h>
#include <stdlib.h>
#include <machine/fpu.h>
void
_lwp_makecontext(ucontext_t *u, void (*start)(void *),
@ -87,4 +88,9 @@ _lwp_makecontext(ucontext_t *u, void (*start)(void *),
gr[_REG_TR(5)] = 0;
gr[_REG_TR(6)] = 0;
gr[_REG_TR(7)] = 0;
/*
* Ensure the FPSCR is valid
*/
u->uc_mcontext.__fpregs.__fp_scr = SH5_FPSCR_DN_FLUSH_ZERO;
}

10
lib/libc/arch/sh5/gen/makecontext.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: makecontext.c,v 1.1 2003/01/19 23:05:02 scw Exp $ */
/* $NetBSD: makecontext.c,v 1.2 2003/01/20 20:09:59 scw Exp $ */
/*
* Copyright 2003 Wasabi Systems, Inc.
@ -38,7 +38,7 @@
#include <sys/cdefs.h>
#if defined(LIBC_SCCS) && !defined(lint)
__RCSID("$NetBSD: makecontext.c,v 1.1 2003/01/19 23:05:02 scw Exp $");
__RCSID("$NetBSD: makecontext.c,v 1.2 2003/01/20 20:09:59 scw Exp $");
#endif
#include <sys/types.h>
@ -47,6 +47,7 @@ __RCSID("$NetBSD: makecontext.c,v 1.1 2003/01/19 23:05:02 scw Exp $");
#include "extern.h"
#include <stdarg.h>
#include <machine/fpu.h>
void
makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...)
@ -94,6 +95,11 @@ makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...)
gr[_REG_TR(6)] = 0;
gr[_REG_TR(7)] = 0;
/*
* Ensure the FPSCR is valid
*/
ucp->uc_mcontext.__fpregs.__fp_scr = SH5_FPSCR_DN_FLUSH_ZERO;
va_start(ap, argc);
/*