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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: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
This commit is contained in:
Thomas Weißschuh 2023-04-15 23:28:48 +02:00 committed by Paul E. McKenney
parent 404fa87c0e
commit 3ad09d72e4
1 changed files with 20 additions and 0 deletions
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20
tools/testing/selftests/nolibc/nolibc-test.c
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@ -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;