Support bpf_get_func_arg() for BPF_TRACE_RAW_TP by getting the function argument count from "prog->aux->attach_func_proto" during verifier inline.
Changes v2 -> v1: * for nr_args, skip first 'void *__data' argument in btf_trace_##name typedef * check the result4 and result5 in the selftests * v1: https://lore.kernel.org/bpf/[email protected]/ Menglong Dong (2): bpf: support bpf_get_func_arg() for BPF_TRACE_RAW_TP selftests/bpf: test bpf_get_func_arg() for tp_btf kernel/bpf/verifier.c | 36 +++++++++++++-- kernel/trace/bpf_trace.c | 4 +- .../bpf/prog_tests/get_func_args_test.c | 3 ++ .../selftests/bpf/progs/get_func_args_test.c | 45 +++++++++++++++++++ .../bpf/test_kmods/bpf_testmod-events.h | 10 +++++ .../selftests/bpf/test_kmods/bpf_testmod.c | 4 ++ 6 files changed, 96 insertions(+), 6 deletions(-) -- 2.52.0
