Keeping 'struct timespec' and 'struct __kernel_timespec' compatible allows the source code to stay simple.
Validate that the types stay compatible.
Signed-off-by: Thomas Weißschuh linux@weissschuh.net Acked-by: Willy Tarreau w@1wt.eu --- tools/testing/selftests/nolibc/nolibc-test.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+)
diff --git a/tools/testing/selftests/nolibc/nolibc-test.c b/tools/testing/selftests/nolibc/nolibc-test.c index 6888b20af259..72bcdbdbb2d3 100644 --- a/tools/testing/selftests/nolibc/nolibc-test.c +++ b/tools/testing/selftests/nolibc/nolibc-test.c @@ -1430,6 +1430,32 @@ int test_difftime(void) return 0; }
+int test_time_types(void) +{ + struct __kernel_timespec kts; + struct timespec ts; + + if (!__builtin_types_compatible_p(time_t, __kernel_time64_t)) + return 1; + + if (sizeof(ts) != sizeof(kts)) + return 1; + + if (!__builtin_types_compatible_p(__typeof__(ts.tv_sec), __typeof__(kts.tv_sec))) + return 1; + + if (!__builtin_types_compatible_p(__typeof__(ts.tv_nsec), __typeof__(kts.tv_nsec))) + return 1; + + if (offsetof(__typeof__(ts), tv_sec) != offsetof(__typeof__(kts), tv_sec)) + return 1; + + if (offsetof(__typeof__(ts), tv_nsec) != offsetof(__typeof__(kts), tv_nsec)) + return 1; + + return 0; +} + int run_stdlib(int min, int max) { int test; @@ -1555,6 +1581,7 @@ int run_stdlib(int min, int max) CASE_TEST(difftime); EXPECT_ZR(1, test_difftime()); break; CASE_TEST(memchr_foobar6_o); EXPECT_STREQ(1, memchr("foobar", 'o', 6), "oobar"); break; CASE_TEST(memchr_foobar3_b); EXPECT_STRZR(1, memchr("foobar", 'b', 3)); break; + CASE_TEST(time_types); EXPECT_ZR(1, test_time_types()); break;
case __LINE__: return ret; /* must be last */