[src/trunk]: src/sys/arch/arm/arm When creating a mcontext, make sure the PSR...

[matt <matt%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/d662eff025d1
branches:  trunk
changeset: 331538:d662eff025d1
user:      matt <matt%NetBSD.org@localhost>
date:      Wed Aug 13 21:10:31 2014 +0000

description:
When creating a mcontext, make sure the PSR we are saving is actually valid.

diffstat:

 sys/arch/arm/arm/sig_machdep.c |  7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)

diffs (28 lines):

diff -r 2be7b540dfa1 -r d662eff025d1 sys/arch/arm/arm/sig_machdep.c
--- a/sys/arch/arm/arm/sig_machdep.c    Wed Aug 13 20:56:21 2014 +0000
+++ b/sys/arch/arm/arm/sig_machdep.c    Wed Aug 13 21:10:31 2014 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: sig_machdep.c,v 1.47 2013/08/18 06:28:18 matt Exp $    */
+/*     $NetBSD: sig_machdep.c,v 1.48 2014/08/13 21:10:31 matt Exp $    */
 
 /*
  * Copyright (c) 1994-1998 Mark Brinicombe.
@@ -44,7 +44,7 @@
 
 #include <sys/param.h>
 
-__KERNEL_RCSID(0, "$NetBSD: sig_machdep.c,v 1.47 2013/08/18 06:28:18 matt Exp $");
+__KERNEL_RCSID(0, "$NetBSD: sig_machdep.c,v 1.48 2014/08/13 21:10:31 matt Exp $");
 
 #include <sys/mount.h>         /* XXX only needed by syscallargs.h */
 #include <sys/cpu.h>
@@ -184,6 +184,9 @@
        gr[_REG_PC]   = tf->tf_pc;
        gr[_REG_CPSR] = tf->tf_spsr;
 
+       KASSERTMSG(VALID_R15_PSR(gr[_REG_PC], gr[_REG_CPSR]), "%#x %#x",
+           gr[_REG_PC], gr[_REG_CPSR]);
+
        if ((ras_pc = (__greg_t)ras_lookup(l->l_proc,
            (void *) gr[_REG_PC])) != -1)
                gr[_REG_PC] = ras_pc;