This is used in various selftests and will be handy when integrating those with nolibc.
Signed-off-by: Thomas Weißschuh thomas.weissschuh@linutronix.de --- tools/include/nolibc/time.h | 7 +++++++ tools/testing/selftests/nolibc/nolibc-test.c | 1 + 2 files changed, 8 insertions(+)
diff --git a/tools/include/nolibc/time.h b/tools/include/nolibc/time.h index 28a1549adb14e2087fa8fbdb7e9c35e1c3f22c2a..760133c574ece97165e3bba5616a387deaf07aff 100644 --- a/tools/include/nolibc/time.h +++ b/tools/include/nolibc/time.h @@ -105,6 +105,13 @@ int clock_settime(clockid_t clockid, struct timespec *tp) }
+static __inline__ +double difftime(time_t time1, time_t time2) +{ + return time1 - time2; +} + + static __attribute__((unused)) time_t time(time_t *tptr) { diff --git a/tools/testing/selftests/nolibc/nolibc-test.c b/tools/testing/selftests/nolibc/nolibc-test.c index aed71de4b4f3dd1f183c7fc25e5a5cee466600ed..fd8bab42e75157967658690005bc9142360fc135 100644 --- a/tools/testing/selftests/nolibc/nolibc-test.c +++ b/tools/testing/selftests/nolibc/nolibc-test.c @@ -1423,6 +1423,7 @@ int run_stdlib(int min, int max) CASE_TEST(toupper_noop); EXPECT_EQ(1, toupper('A'), 'A'); break; CASE_TEST(abs); EXPECT_EQ(1, abs(-10), 10); break; CASE_TEST(abs_noop); EXPECT_EQ(1, abs(10), 10); break; + CASE_TEST(difftime); EXPECT_EQ(1, difftime(200., 100.), 100.); break;
case __LINE__: return ret; /* must be last */