Commit a290296a authored by Ammar Faizi's avatar Ammar Faizi Committed by Paul E. McKenney
Browse files

selftests/nolibc: Add `getpagesize(2)` selftest 



Test the getpagesize() function. Make sure it returns the correct
value.

Signed-off-by: default avatarAmmar Faizi <ammarfaizi2@gnuweeb.org>
Signed-off-by: default avatarWilly Tarreau <w@1wt.eu>
Signed-off-by: default avatarPaul E. McKenney <paulmck@kernel.org>
parent 7efd762e

tools/testing/selftests/nolibc/nolibc-test.c

+30 −0
Original line number Diff line number Diff line
@@ -442,6 +442,35 @@ int test_getdents64(const char *dir) 
	return ret;

}



static int test_getpagesize(void)

{

	long x = getpagesize();

	int c;



	if (x < 0)

		return x;



#if defined(__x86_64__) || defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__i686__)

	/*

	 * x86 family is always 4K page.

	 */

	c = (x == 4096);

#elif defined(__aarch64__)

	/*

	 * Linux aarch64 supports three values of page size: 4K, 16K, and 64K

	 * which are selected at kernel compilation time.

	 */

	c = (x == 4096 || x == (16 * 1024) || x == (64 * 1024));

#else

	/*

	 * Assuming other architectures must have at least 4K page.

	 */

	c = (x >= 4096);

#endif



	return !c;

}



/* Run syscall tests between IDs <min> and <max>.

 * Return 0 on success, non-zero on failure.

 */
@@ -502,6 +531,7 @@ int run_syscall(int min, int max) 
		CASE_TEST(gettimeofday_bad2); EXPECT_SYSER(1, gettimeofday(NULL, (void *)1), -1, EFAULT); break;

		CASE_TEST(gettimeofday_bad2); EXPECT_SYSER(1, gettimeofday(NULL, (void *)1), -1, EFAULT); break;

#endif

		CASE_TEST(getpagesize);       EXPECT_SYSZR(1, test_getpagesize()); break;

		CASE_TEST(ioctl_tiocinq);     EXPECT_SYSZR(1, ioctl(0, TIOCINQ, &tmp)); break;

		CASE_TEST(ioctl_tiocinq);     EXPECT_SYSZR(1, ioctl(0, TIOCINQ, &tmp)); break;

		CASE_TEST(link_root1);        EXPECT_SYSER(1, link("/", "/"), -1, EEXIST); break;