Commit 3ad09d72 authored by Thomas Weißschuh's avatar Thomas Weißschuh Committed by Paul E. McKenney
Browse files

tools/nolibc: add testcase for fork()/waitpid() 



On s390 the arguments to clone() which is used by fork() are different
than other archs.
Make sure everything works correctly.

Signed-off-by: default avatarThomas Weißschuh <linux@weissschuh.net>
Signed-off-by: default avatarWilly Tarreau <w@1wt.eu>
Signed-off-by: default avatarPaul E. McKenney <paulmck@kernel.org>
parent 404fa87c

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

+20 −0
Original line number Diff line number Diff line
@@ -474,6 +474,25 @@ static int test_getpagesize(void) 
	return !c;

}



static int test_fork(void)

{

	int status;

	pid_t pid = fork();



	switch (pid) {

	case -1:

		return 1;



	case 0:

		exit(123);



	default:

		pid = waitpid(pid, &status, 0);



		return pid == -1 || !WIFEXITED(status) || WEXITSTATUS(status) != 123;

	}

}



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

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

 */
@@ -530,6 +549,7 @@ int run_syscall(int min, int max) 
		CASE_TEST(dup3_0);            tmp = dup3(0, 100, 0);  EXPECT_SYSNE(1, tmp, -1); close(tmp); break;

		CASE_TEST(dup3_m1);           tmp = dup3(-1, 100, 0); EXPECT_SYSER(1, tmp, -1, EBADF); if (tmp != -1) close(tmp); break;

		CASE_TEST(execve_root);       EXPECT_SYSER(1, execve("/", (char*[]){ [0] = "/", [1] = NULL }, NULL), -1, EACCES); break;

		CASE_TEST(fork);              EXPECT_SYSZR(1, test_fork()); break;

		CASE_TEST(getdents64_root);   EXPECT_SYSNE(1, test_getdents64("/"), -1); break;

		CASE_TEST(getdents64_null);   EXPECT_SYSER(1, test_getdents64("/dev/null"), -1, ENOTDIR); break;

		CASE_TEST(gettimeofday_null); EXPECT_SYSZR(1, gettimeofday(NULL, NULL)); break;