diff options
| author | anton <anton@cvs.openbsd.org> | 2018-08-19 11:42:34 +0000 |
|---|---|---|
| committer | anton <anton@cvs.openbsd.org> | 2018-08-19 11:42:34 +0000 |
| commit | ccc7f034a58f63768110e9b4b82324eee3597706 (patch) | |
| tree | c9496c52dfbf2469806099cdfbb26e5d108f4c88 /sys/kern | |
| parent | 63e6caa26564e0dc0de5c358a1401413ea2b7e8c (diff) | |
Add kcov(4), a kernel code coverage tracing driver. It's used in conjunction
with the syzkaller kernel fuzzer. So far, 8 distinct panics have been found and
fixed. This effort will continue.
kcov is limited to architectures using Clang as their default compiler and is
not enabled by default.
With help from mpi@, thanks!
ok kettenis@ mpi@ visa@
Diffstat (limited to 'sys/kern')
| -rw-r--r-- | sys/kern/kern_exit.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/sys/kern/kern_exit.c b/sys/kern/kern_exit.c index 4e1f1dee000..4bacf19e3de 100644 --- a/sys/kern/kern_exit.c +++ b/sys/kern/kern_exit.c @@ -1,4 +1,4 @@ -/* $OpenBSD: kern_exit.c,v 1.166 2018/08/13 15:26:17 visa Exp $ */ +/* $OpenBSD: kern_exit.c,v 1.167 2018/08/19 11:42:33 anton Exp $ */ /* $NetBSD: kern_exit.c,v 1.39 1996/04/22 01:38:25 christos Exp $ */ /* @@ -56,6 +56,7 @@ #include <sys/filedesc.h> #include <sys/signalvar.h> #include <sys/sched.h> +#include <sys/kcov.h> #include <sys/ktrace.h> #include <sys/pool.h> #include <sys/mutex.h> @@ -189,6 +190,10 @@ exit1(struct proc *p, int rv, int flags) acct_process(p); #endif +#ifdef KCOV + kcov_exit(p); +#endif + #ifdef KTRACE /* release trace file */ if (pr->ps_tracevp) |