Aren/NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Fix SunOS user trace trap handling, from Gordon.

Browse Source
This commit is contained in:
scottr 1997-04-07 22:54:44 +00:00
parent eabfcc3f00
commit 396cf17033
1 changed files with 10 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
sys/arch/mac68k/mac68k/trap.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: trap.c,v 1.45 1997/01/20 04:30:05 scottr Exp $ */
/* $NetBSD: trap.c,v 1.46 1997/04/07 22:54:44 scottr Exp $ */
/*
* Copyright (c) 1988 University of Utah.
@ -424,13 +424,16 @@ copyfault:
case T_TRAP15|T_USER: /* Sun user trace trap */
#ifdef COMPAT_SUNOS
/*
* XXX This comment/code is not consistent XXX
* SunOS seems to use Trap #2 for some obscure
* fpu operations. So far, just ignore it, but
* DONT trap on it..
* SunOS uses Trap #2 for a "CPU cache flush"
* Just flush the on-chip caches and return.
* XXX - Too bad NetBSD uses trap 2...
*/
if (p->p_emul == &emul_sunos)
goto out;
if (p->p_emul == &emul_sunos) {
ICIA();
DCIU();
/* get out fast */
goto done;
}
#endif
frame.f_sr &= ~PSL_T;
i = SIGTRAP;