diff options
Diffstat (limited to 'usr/src/uts/sun4/os/intr.c')
| -rw-r--r-- | usr/src/uts/sun4/os/intr.c | 28 |
1 files changed, 26 insertions, 2 deletions
diff --git a/usr/src/uts/sun4/os/intr.c b/usr/src/uts/sun4/os/intr.c index 15fcca1791..6ccf1da742 100644 --- a/usr/src/uts/sun4/os/intr.c +++ b/usr/src/uts/sun4/os/intr.c @@ -19,7 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2006 Sun Microsystems, Inc. All rights reserved. + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ @@ -43,6 +43,7 @@ #include <vm/seg_kp.h> #include <sys/debug.h> #include <sys/cyclic.h> +#include <sys/kdi_impl.h> #include <sys/cpu_sgnblk_defs.h> @@ -130,9 +131,32 @@ poke_cpu_intr(caddr_t arg1, caddr_t arg2) } /* - * siron - primitive for sun/os/softint.c + * kmdb uses siron (and thus setsoftint) while the world is stopped in order to + * inform its driver component that there's work to be done. We need to keep + * DTrace from instrumenting kmdb's siron and setsoftint. We duplicate siron, + * giving kmdb's version a kdi_ prefix to keep DTrace at bay. The + * implementation of setsoftint is complicated enough that we don't want to + * duplicate it, but at the same time we don't want to preclude tracing either. + * The meat of setsoftint() therefore goes into kdi_setsoftint, with + * setsoftint() implemented as a wrapper. This allows tracing, while still + * providing a way for kmdb to sneak in unmolested. */ void +kdi_siron(void) +{ + if (siron_inum != 0) + kdi_setsoftint(siron_inum); + else + siron_pending = 1; +} + +void +setsoftint(uint64_t inum) +{ + kdi_setsoftint(inum); +} + +void siron(void) { if (siron_inum != 0) |