diff options
Diffstat (limited to 'tools/testing/selftests/bpf/progs/test_global_func_ctx_args.c')
-rw-r--r-- | tools/testing/selftests/bpf/progs/test_global_func_ctx_args.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/test_global_func_ctx_args.c b/tools/testing/selftests/bpf/progs/test_global_func_ctx_args.c index 7faa8eef05..9a06e5eb1f 100644 --- a/tools/testing/selftests/bpf/progs/test_global_func_ctx_args.c +++ b/tools/testing/selftests/bpf/progs/test_global_func_ctx_args.c @@ -102,3 +102,52 @@ int perf_event_ctx(void *ctx) { return perf_event_ctx_subprog(ctx); } + +/* this global subprog can be now called from many types of entry progs, each + * with different context type + */ +__weak int subprog_ctx_tag(void *ctx __arg_ctx) +{ + return bpf_get_stack(ctx, stack, sizeof(stack), 0); +} + +struct my_struct { int x; }; + +__weak int subprog_multi_ctx_tags(void *ctx1 __arg_ctx, + struct my_struct *mem, + void *ctx2 __arg_ctx) +{ + if (!mem) + return 0; + + return bpf_get_stack(ctx1, stack, sizeof(stack), 0) + + mem->x + + bpf_get_stack(ctx2, stack, sizeof(stack), 0); +} + +SEC("?raw_tp") +__success __log_level(2) +int arg_tag_ctx_raw_tp(void *ctx) +{ + struct my_struct x = { .x = 123 }; + + return subprog_ctx_tag(ctx) + subprog_multi_ctx_tags(ctx, &x, ctx); +} + +SEC("?perf_event") +__success __log_level(2) +int arg_tag_ctx_perf(void *ctx) +{ + struct my_struct x = { .x = 123 }; + + return subprog_ctx_tag(ctx) + subprog_multi_ctx_tags(ctx, &x, ctx); +} + +SEC("?kprobe") +__success __log_level(2) +int arg_tag_ctx_kprobe(void *ctx) +{ + struct my_struct x = { .x = 123 }; + + return subprog_ctx_tag(ctx) + subprog_multi_ctx_tags(ctx, &x, ctx); +} |