diff options
Diffstat (limited to 'regress')
| -rw-r--r-- | regress/sys/dev/kcov/Makefile | 3 | ||||
| -rw-r--r-- | regress/sys/dev/kcov/kcov.c | 23 |
2 files changed, 24 insertions, 2 deletions
diff --git a/regress/sys/dev/kcov/Makefile b/regress/sys/dev/kcov/Makefile index 29daeb60add..5a6cd6ef285 100644 --- a/regress/sys/dev/kcov/Makefile +++ b/regress/sys/dev/kcov/Makefile @@ -1,4 +1,4 @@ -# $OpenBSD: Makefile,v 1.6 2018/12/27 19:38:01 anton Exp $ +# $OpenBSD: Makefile,v 1.7 2019/01/16 19:28:36 anton Exp $ PROG= kcov WARNINGS= yes @@ -13,6 +13,7 @@ TESTS+= coverage TESTS+= dying TESTS+= exec TESTS+= fork +TESTS+= mmap TESTS+= open TESTS+= state diff --git a/regress/sys/dev/kcov/kcov.c b/regress/sys/dev/kcov/kcov.c index 28d7ee3ed3e..c12513c7603 100644 --- a/regress/sys/dev/kcov/kcov.c +++ b/regress/sys/dev/kcov/kcov.c @@ -1,4 +1,4 @@ -/* $OpenBSD: kcov.c,v 1.6 2019/01/03 08:51:31 anton Exp $ */ +/* $OpenBSD: kcov.c,v 1.7 2019/01/16 19:28:37 anton Exp $ */ /* * Copyright (c) 2018 Anton Lindqvist <anton@openbsd.org> @@ -35,6 +35,7 @@ static int test_coverage(int, int); static int test_dying(int, int); static int test_exec(int, int); static int test_fork(int, int); +static int test_mmap(int, int); static int test_open(int, int); static int test_state(int, int); @@ -62,6 +63,7 @@ main(int argc, char *argv[]) { "dying", test_dying, 1 }, { "exec", test_exec, 1 }, { "fork", test_fork, 1 }, + { "mmap", test_mmap, 1 }, { "open", test_open, 0 }, { "state", test_state, 1 }, { NULL, NULL, 0 }, @@ -340,6 +342,25 @@ test_fork(int fd, int mode) } /* + * Calling mmap() after enable is not allowed. + */ +static int +test_mmap(int fd, int mode) +{ + void *cover; + + kcov_enable(fd, mode); + cover = mmap(NULL, bufsize * sizeof(unsigned long), + PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); + if (cover != MAP_FAILED) { + warnx("expected mmap to fail"); + return 1; + } + + return 0; +} + +/* * Open /dev/kcov more than once. */ static int |