Add a selftest for PIDFD_INFO_EXIT behavior.
Signed-off-by: Christian Brauner <brauner@xxxxxxxxxx>
---
tools/testing/selftests/pidfd/pidfd_info_test.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/tools/testing/selftests/pidfd/pidfd_info_test.c b/tools/testing/selftests/pidfd/pidfd_info_test.c
index cc1d3d5eba59..2a5742a2a55f 100644
--- a/tools/testing/selftests/pidfd/pidfd_info_test.c
+++ b/tools/testing/selftests/pidfd/pidfd_info_test.c
@@ -143,4 +143,22 @@ TEST_F(pidfd_info, sigkill_exit)
ASSERT_FALSE(!!(info.mask & PIDFD_INFO_EXIT));
}
+TEST_F(pidfd_info, sigkill_reaped)
+{
+ struct pidfd_info info = {
+ .mask = PIDFD_INFO_CGROUPID,
+ };
+
+ /* Process has already been reaped and PIDFD_INFO_EXIT hasn't been set. */
+ ASSERT_NE(ioctl(self->child_pidfd2, PIDFD_GET_INFO, &info), 0);
+ ASSERT_EQ(errno, ESRCH);
+
+ info.mask = PIDFD_INFO_CGROUPID | PIDFD_INFO_EXIT;
+ ASSERT_EQ(ioctl(self->child_pidfd2, PIDFD_GET_INFO, &info), 0);
+ ASSERT_FALSE(!!(info.mask & PIDFD_INFO_CREDS));
+ ASSERT_TRUE(!!(info.mask & PIDFD_INFO_EXIT));
+ ASSERT_TRUE(WIFSIGNALED(info.exit_code));
+ ASSERT_EQ(WTERMSIG(info.exit_code), SIGKILL);
+}
+
TEST_HARNESS_MAIN
--
2.47.2
