diff options
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c')
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c b/tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c index f29fc789c14b..92c20803ea76 100644 --- a/tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c +++ b/tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c @@ -111,7 +111,7 @@ static void test_fexit_bpf2bpf_common(const char *obj_file, struct bpf_link_info link_info; struct bpf_program *pos; const char *pos_sec_name; - char *tgt_name; + const char *tgt_name; __s32 btf_id; tgt_name = strstr(prog_name[i], "/"); @@ -347,6 +347,17 @@ static void test_func_sockmap_update(void) prog_name, false, NULL); } +static void test_func_replace_void(void) +{ + const char *prog_name[] = { + "freplace/foo", + }; + test_fexit_bpf2bpf_common("./freplace_void.bpf.o", + "./test_global_func7.bpf.o", + ARRAY_SIZE(prog_name), + prog_name, false, NULL); +} + static void test_obj_load_failure_common(const char *obj_file, const char *target_obj_file, const char *exp_msg) @@ -432,6 +443,15 @@ static void test_func_replace_global_func(void) prog_name, false, NULL); } +static void test_func_replace_int_with_void(void) +{ + /* Make sure we can't freplace with the wrong type */ + test_obj_load_failure_common("freplace_int_with_void.bpf.o", + "./test_global_func2.bpf.o", + "Return type UNKNOWN of test_freplace_int_with_void()" + " doesn't match type INT of global_func2()"); +} + static int find_prog_btf_id(const char *name, __u32 attach_prog_fd) { struct bpf_prog_info info = {}; @@ -597,4 +617,8 @@ void serial_test_fexit_bpf2bpf(void) test_fentry_to_cgroup_bpf(); if (test__start_subtest("func_replace_progmap")) test_func_replace_progmap(); + if (test__start_subtest("freplace_int_with_void")) + test_func_replace_int_with_void(); + if (test__start_subtest("freplace_void")) + test_func_replace_void(); } |