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| author | Eduard Zingerman <eddyz87@gmail.com> | 2024-03-06 12:45:23 +0200 |
|---|---|---|
| committer | Andrii Nakryiko <andrii@kernel.org> | 2024-03-06 15:18:15 -0800 |
| commit | 651d49f15b2a84b3bcfe950fa99c3672b9619dbd (patch) | |
| tree | eea5bdf4b6fe6d7b31445339fba8e799bf8ad623 /tools/testing/selftests/bpf/progs/struct_ops_autocreate2.c | |
| parent | fe9d049c3da06373a1a35914b7f695509e4cb1fe (diff) | |
| download | linux-651d49f15b2a84b3bcfe950fa99c3672b9619dbd.tar.gz linux-651d49f15b2a84b3bcfe950fa99c3672b9619dbd.tar.bz2 linux-651d49f15b2a84b3bcfe950fa99c3672b9619dbd.zip | |
selftests/bpf: Verify struct_ops autoload/autocreate sync
Check that autocreate flags of struct_ops map cause autoload of
struct_ops corresponding programs:
- when struct_ops program is referenced only from a map for which
autocreate is set to false, that program should not be loaded;
- when struct_ops program with autoload == false is set to be used
from a map with autocreate == true using shadow var,
that program should be loaded;
- when struct_ops program is not referenced from any map object load
should fail.
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20240306104529.6453-10-eddyz87@gmail.com
Diffstat (limited to 'tools/testing/selftests/bpf/progs/struct_ops_autocreate2.c')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/struct_ops_autocreate2.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/struct_ops_autocreate2.c b/tools/testing/selftests/bpf/progs/struct_ops_autocreate2.c new file mode 100644 index 000000000000..6049d9c902d3 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/struct_ops_autocreate2.c @@ -0,0 +1,32 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include <linux/bpf.h> +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_tracing.h> + +char _license[] SEC("license") = "GPL"; + +int test_1_result = 0; + +SEC("?struct_ops/test_1") +int BPF_PROG(foo) +{ + test_1_result = 42; + return 0; +} + +SEC("?struct_ops/test_1") +int BPF_PROG(bar) +{ + test_1_result = 24; + return 0; +} + +struct bpf_testmod_ops { + int (*test_1)(void); +}; + +SEC(".struct_ops.link") +struct bpf_testmod_ops testmod_1 = { + .test_1 = (void *)bar +}; |