From 5ff54dedf35bfee7a16eb9f8fb7ecadf7d5564cb Mon Sep 17 00:00:00 2001 From: Feng Zhou Date: Thu, 20 Apr 2023 11:27:35 +0800 Subject: selftests/bpf: Add test to access integer type of variable array Add prog test for accessing integer type of variable array in tracing program. In addition, hook load_balance function to access sd->span[0], only to confirm whether the load is successful. Because there is no direct way to trigger load_balance call. Co-developed-by: Chengming Zhou Signed-off-by: Chengming Zhou Signed-off-by: Feng Zhou Link: https://lore.kernel.org/r/20230420032735.27760-3-zhoufeng.zf@bytedance.com Signed-off-by: Alexei Starovoitov --- tools/testing/selftests/bpf/progs/tracing_struct.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'tools/testing/selftests/bpf/progs/tracing_struct.c') diff --git a/tools/testing/selftests/bpf/progs/tracing_struct.c b/tools/testing/selftests/bpf/progs/tracing_struct.c index e718f0ebee7d..c435a3a8328a 100644 --- a/tools/testing/selftests/bpf/progs/tracing_struct.c +++ b/tools/testing/selftests/bpf/progs/tracing_struct.c @@ -13,12 +13,18 @@ struct bpf_testmod_struct_arg_2 { long b; }; +struct bpf_testmod_struct_arg_3 { + int a; + int b[]; +}; + long t1_a_a, t1_a_b, t1_b, t1_c, t1_ret, t1_nregs; __u64 t1_reg0, t1_reg1, t1_reg2, t1_reg3; long t2_a, t2_b_a, t2_b_b, t2_c, t2_ret; long t3_a, t3_b, t3_c_a, t3_c_b, t3_ret; long t4_a_a, t4_b, t4_c, t4_d, t4_e_a, t4_e_b, t4_ret; long t5_ret; +int t6; SEC("fentry/bpf_testmod_test_struct_arg_1") int BPF_PROG2(test_struct_arg_1, struct bpf_testmod_struct_arg_2, a, int, b, int, c) @@ -117,4 +123,11 @@ int BPF_PROG2(test_struct_arg_10, int, ret) return 0; } +SEC("fentry/bpf_testmod_test_struct_arg_6") +int BPF_PROG2(test_struct_arg_11, struct bpf_testmod_struct_arg_3 *, a) +{ + t6 = a->b[0]; + return 0; +} + char _license[] SEC("license") = "GPL"; -- cgit v1.2.3-70-g09d2