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Adapt to new FPU save format in PCB.

This commit is contained in:
thorpej 2001-08-03 00:41:46 +00:00
parent 8c3ac05de9
commit 8f308d671e
4 changed files with 22 additions and 9 deletions
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7
sys/arch/i386/i386/freebsd_machdep.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: freebsd_machdep.c,v 1.27 2001/05/30 12:28:43 mrg Exp $ */
/* $NetBSD: freebsd_machdep.c,v 1.28 2001/08/03 00:41:46 thorpej Exp $ */
/*-
* Copyright (c) 1998, 2000 The NetBSD Foundation, Inc.
@ -68,7 +68,10 @@ freebsd_setregs(p, epp, stack)
register struct pcb *pcb = &p->p_addr->u_pcb;
setregs(p, epp, stack);
pcb->pcb_savefpu.sv_env.en_cw = __FreeBSD_NPXCW__;
if (i386_use_fxsave)
pcb->pcb_savefpu.sv_xmm.sv_env.en_cw = __FreeBSD_NPXCW__;
else
pcb->pcb_savefpu.sv_87.sv_env.en_cw = __FreeBSD_NPXCW__;
}
/*

7
sys/arch/i386/i386/ibcs2_machdep.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: ibcs2_machdep.c,v 1.15 2001/06/17 21:01:33 sommerfeld Exp $ */
/* $NetBSD: ibcs2_machdep.c,v 1.16 2001/08/03 00:41:46 thorpej Exp $ */
/*-
* Copyright (c) 1997, 2000 The NetBSD Foundation, Inc.
@ -75,7 +75,10 @@ ibcs2_setregs(p, epp, stack)
register struct trapframe *tf;
setregs(p, epp, stack);
pcb->pcb_savefpu.sv_env.en_cw = __iBCS2_NPXCW__;
if (i386_use_fxsave)
pcb->pcb_savefpu.sv_xmm.sv_env.en_cw = __iBCS2_NPXCW__;
else
pcb->pcb_savefpu.sv_87.sv_env.en_cw = __iBCS2_NPXCW__;
tf = p->p_md.md_regs;
tf->tf_eax = 0x2000000; /* XXX base of heap */
}

10
sys/arch/i386/i386/math_emulate.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: math_emulate.c,v 1.21 1999/04/22 00:23:33 fvdl Exp $ */
/* $NetBSD: math_emulate.c,v 1.22 2001/08/03 00:41:46 thorpej Exp $ */
/*
* expediant "port" of linux 8087 emulator to 386BSD, with apologies -wfj
@ -72,6 +72,7 @@ int
math_emulate(info)
struct trapframe *info;
{
struct proc *p = curproc;
u_short cw, code;
temp_real tmp;
char * address;
@ -86,10 +87,13 @@ math_emulate(info)
/* ever used fp? */
if ((curproc->p_md.md_flags & MDP_USEDFPU) == 0) {
cw = curproc->p_addr->u_pcb.pcb_savefpu.sv_env.en_cw;
if (i386_use_fxsave)
cw = p->p_addr->u_pcb.pcb_savefpu.sv_xmm.sv_env.en_cw;
else
cw = p->p_addr->u_pcb.pcb_savefpu.sv_87.sv_env.en_cw;
fninit();
I387.cwd = cw;
curproc->p_md.md_flags |= MDP_USEDFPU;
p->p_md.md_flags |= MDP_USEDFPU;
}
if (I387.cwd & I387.swd & 0x3f)

7
sys/arch/i386/i386/svr4_machdep.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: svr4_machdep.c,v 1.54 2001/07/13 23:32:26 kristerw Exp $ */
/* $NetBSD: svr4_machdep.c,v 1.55 2001/08/03 00:41:46 thorpej Exp $ */
/*-
* Copyright (c) 1994, 2000 The NetBSD Foundation, Inc.
@ -123,7 +123,10 @@ svr4_setregs(p, epp, stack)
register struct pcb *pcb = &p->p_addr->u_pcb;
setregs(p, epp, stack);
pcb->pcb_savefpu.sv_env.en_cw = __SVR4_NPXCW__;
if (i386_use_fxsave)
pcb->pcb_savefpu.sv_xmm.sv_env.en_cw = __SVR4_NPXCW__;
else
pcb->pcb_savefpu.sv_87.sv_env.en_cw = __SVR4_NPXCW__;
}
void *