From 651d49f15b2a84b3bcfe950fa99c3672b9619dbd Mon Sep 17 00:00:00 2001 From: Eduard Zingerman Date: Wed, 6 Mar 2024 12:45:23 +0200 Subject: 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 Signed-off-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/20240306104529.6453-10-eddyz87@gmail.com --- .../selftests/bpf/progs/struct_ops_autocreate2.c | 32 ++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 tools/testing/selftests/bpf/progs/struct_ops_autocreate2.c (limited to 'tools/testing/selftests/bpf/progs/struct_ops_autocreate2.c') 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 +#include +#include + +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 +}; -- cgit