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Add a few assertions to verify non-privileged processor state for userland

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and 32bit address mapping for 32bit processes.
This commit is contained in:
martin 2015-11-06 15:25:42 +00:00
parent 6e1ae27534
commit 79ee181a4a
1 changed files with 17 additions and 2 deletions
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19
sys/arch/sparc64/sparc64/syscall.c
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@ -1,4 +1,4 @@
/* $NetBSD: syscall.c,v 1.43 2014/03/07 22:51:27 nakayama Exp $ */
/* $NetBSD: syscall.c,v 1.44 2015/11/06 15:25:42 martin Exp $ */
/*-
* Copyright (c) 2005 The NetBSD Foundation, Inc.
@ -79,7 +79,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: syscall.c,v 1.43 2014/03/07 22:51:27 nakayama Exp $");
__KERNEL_RCSID(0, "$NetBSD: syscall.c,v 1.44 2015/11/06 15:25:42 martin Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -309,6 +309,21 @@ syscall(struct trapframe64 *tf, register_t code, register_t pc)
rval[0] = 0;
rval[1] = tf->tf_out[1];
#ifdef DIAGNOSTIC
KASSERT(p->p_pid != 0);
KASSERTMSG(!(tf->tf_tstate & TSTATE_PRIV),
"syscall %ld, pid %d trap frame %p tstate %lx is privileged %s\n",
code, p->p_pid, tf, tf->tf_tstate,
(tf->tf_tstate & TSTATE_PRIV)?"yes":"no");
if (p->p_flag & PK_32) {
KASSERTMSG(tf->tf_tstate & TSTATE_AM,
"32bit syscall %ld, pid %d trap frame %p tstate %lx "
"has AM %s\n",
code, p->p_pid, tf, tf->tf_tstate,
(tf->tf_tstate & TSTATE_AM)?"yes":"no");
}
#endif
error = sy_invoke(callp, l, args.r, rval, code);
switch (error) {