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| author | Eduard Zingerman <eddyz87@gmail.com> | 2023-04-21 01:23:16 +0200 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2023-04-21 01:49:16 +0200 |
| commit | 5b22f4d1436b2693c7176a76be0ba6d30503bf7c (patch) | |
| tree | b238b17a89f346931b2fd66f66e43188a8c50329 /tools/testing/selftests/bpf/test_progs.h | |
| parent | selftests/bpf: fix __retval() being always ignored (diff) | |
| download | linux-5b22f4d1436b2693c7176a76be0ba6d30503bf7c.tar.xz linux-5b22f4d1436b2693c7176a76be0ba6d30503bf7c.zip | |
selftests/bpf: add pre bpf_prog_test_run_opts() callback for test_loader
When a test case is annotated with __retval tag the test_loader engine
would use libbpf's bpf_prog_test_run_opts() to do a test run of the
program and compare retvals.
This commit allows to perform arbitrary actions on bpf object right
before test loader invokes bpf_prog_test_run_opts(). This could be
used to setup some state for program execution, e.g. fill some maps.
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20230420232317.2181776-4-eddyz87@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools/testing/selftests/bpf/test_progs.h')
| -rw-r--r-- | tools/testing/selftests/bpf/test_progs.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/test_progs.h b/tools/testing/selftests/bpf/test_progs.h index 10ba43250668..0ed3134333d4 100644 --- a/tools/testing/selftests/bpf/test_progs.h +++ b/tools/testing/selftests/bpf/test_progs.h @@ -424,14 +424,23 @@ int get_bpf_max_tramp_links(void); #define BPF_TESTMOD_TEST_FILE "/sys/kernel/bpf_testmod" +typedef int (*pre_execution_cb)(struct bpf_object *obj); + struct test_loader { char *log_buf; size_t log_buf_sz; size_t next_match_pos; + pre_execution_cb pre_execution_cb; struct bpf_object *obj; }; +static inline void test_loader__set_pre_execution_cb(struct test_loader *tester, + pre_execution_cb cb) +{ + tester->pre_execution_cb = cb; +} + typedef const void *(*skel_elf_bytes_fn)(size_t *sz); extern void test_loader__run_subtests(struct test_loader *tester, |