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On the vax, the trapsignal() call will change frame->sp to point to a 

callg on the user's stack that calls the user's signal handler, so do
the skip_opcode() before calling trapsignal().  A floating point
overflow no longer causes a signal loop.  This should stop the native
compile hangs trying to compile src/lib/libm/complex/catan.ln.
This commit is contained in:
mhitch 2009-02-18 17:32:12 +00:00
parent ad57574aad
commit 9259dea89c
1 changed files with 4 additions and 3 deletions
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7
sys/arch/vax/vax/trap.c
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@ -1,4 +1,4 @@
/* $NetBSD: trap.c,v 1.117 2009/02/16 23:55:31 christos Exp $ */
/* $NetBSD: trap.c,v 1.118 2009/02/18 17:32:12 mhitch Exp $ */
/*
* Copyright (c) 1994 Ludd, University of Lule}, Sweden.
@ -33,7 +33,7 @@
/* All bugs are subject to removal without further notice */
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: trap.c,v 1.117 2009/02/16 23:55:31 christos Exp $");
__KERNEL_RCSID(0, "$NetBSD: trap.c,v 1.118 2009/02/18 17:32:12 mhitch Exp $");
#include "opt_ddb.h"
#include "opt_multiprocessor.h"
@ -325,7 +325,6 @@ if(faultdebug)printf("trap accflt type %lx, code %lx, pc %lx, psl %lx\n",
ksi.ksi_trap = frame->trap;
ksi.ksi_addr = (void *)frame->code;
ksi.ksi_code = code;
trapsignal(l, &ksi);
/*
* Arithmetic exceptions can be of two kinds:
@ -340,6 +339,8 @@ if(faultdebug)printf("trap accflt type %lx, code %lx, pc %lx, psl %lx\n",
*/
if (type == (T_ARITHFLT | T_USER) && (frame->code & 8))
frame->pc = skip_opcode(frame->pc);
trapsignal(l, &ksi);
}
if (!usermode)