bpf/prog_tests/linked_maps.c

0001 // SPDX-License-Identifier: GPL-2.0
0002 /* Copyright (c) 2021 Facebook */
0003
0004 #include <test_progs.h>
0005 #include <sys/syscall.h>
0006 #include "linked_maps.skel.h"
0007
0008 void test_linked_maps(void)
0009 {
0010     int err;
0011     struct linked_maps *skel;
0012
0013     skel = linked_maps__open_and_load();
0014     if (!ASSERT_OK_PTR(skel, "skel_open"))
0015         return;
0016
0017     err = linked_maps__attach(skel);
0018     if (!ASSERT_OK(err, "skel_attach"))
0019         goto cleanup;
0020
0021     /* trigger */
0022     syscall(SYS_getpgid);
0023
0024     ASSERT_EQ(skel->bss->output_first1, 2000, "output_first1");
0025     ASSERT_EQ(skel->bss->output_second1, 2, "output_second1");
0026     ASSERT_EQ(skel->bss->output_weak1, 2, "output_weak1");
0027
0028 cleanup:
0029     linked_maps__destroy(skel);
0030 }