Hi Andrii, The documentation for bpf_core_enum_value says that a missing enum_value will make the macro return 0: * 64-bit value, if specified enum type and its enumerator value are * present in target kernel's BTF; * 0, if no matching enum and/or enum value within that enum is found. */ #define bpf_core_enum_value(enum_type, enum_value) However, the enumval___err_missing test asserts that bpf_core_enum_value with a missing value will poison the result if I understand correctly. $ sudo ./test_progs -n 31/77 -vvv ... libbpf: prog 'test_core_enumval': relo #9: kind <enumval_value> (11), spec is [5] typedef anon_enum::ANON_ENUM_VAL2 = 32 libbpf: prog 'test_core_enumval': relo #9: non-matching candidate #0 [6] typedef anon_enum___err_missing::ANON_ENUM_VAL1___err_missing = 273 libbpf: prog 'test_core_enumval': relo #9: no matching targets found libbpf: prog 'test_core_enumval': relo #9: substituting insn #48 w/ invalid insn libbpf: prog 'test_core_enumval': relo #9: substituting insn #47 w/ invalid insn libbpf: load bpf program failed: Invalid argument What is the correct behaviour in this case? Lorenz -- Lorenz Bauer | Systems Engineer 6th Floor, County Hall/The Riverside Building, SE1 7PB, UK www.cloudflare.com
