^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) #undef TRACE_SYSTEM_VAR
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) #ifdef CONFIG_BPF_EVENTS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #undef __entry
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #define __entry entry
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #undef __get_dynamic_array
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #define __get_dynamic_array(field) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) ((void *)__entry + (__entry->__data_loc_##field & 0xffff))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #undef __get_dynamic_array_len
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #define __get_dynamic_array_len(field) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) ((__entry->__data_loc_##field >> 16) & 0xffff)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #undef __get_str
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #define __get_str(field) ((char *)__get_dynamic_array(field))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #undef __get_bitmask
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #define __get_bitmask(field) (char *)__get_dynamic_array(field)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #undef __perf_count
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #define __perf_count(c) (c)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #undef __perf_task
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #define __perf_task(t) (t)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) /* cast any integer, pointer, or small struct to u64 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #define UINTTYPE(size) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) __typeof__(__builtin_choose_expr(size == 1, (u8)1, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) __builtin_choose_expr(size == 2, (u16)2, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) __builtin_choose_expr(size == 4, (u32)3, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) __builtin_choose_expr(size == 8, (u64)4, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) (void)5)))))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #define __CAST_TO_U64(x) ({ \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) typeof(x) __src = (x); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) UINTTYPE(sizeof(x)) __dst; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) memcpy(&__dst, &__src, sizeof(__dst)); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) (u64)__dst; })
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #define __CAST1(a,...) __CAST_TO_U64(a)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #define __CAST2(a,...) __CAST_TO_U64(a), __CAST1(__VA_ARGS__)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #define __CAST3(a,...) __CAST_TO_U64(a), __CAST2(__VA_ARGS__)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #define __CAST4(a,...) __CAST_TO_U64(a), __CAST3(__VA_ARGS__)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) #define __CAST5(a,...) __CAST_TO_U64(a), __CAST4(__VA_ARGS__)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) #define __CAST6(a,...) __CAST_TO_U64(a), __CAST5(__VA_ARGS__)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) #define __CAST7(a,...) __CAST_TO_U64(a), __CAST6(__VA_ARGS__)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) #define __CAST8(a,...) __CAST_TO_U64(a), __CAST7(__VA_ARGS__)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) #define __CAST9(a,...) __CAST_TO_U64(a), __CAST8(__VA_ARGS__)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) #define __CAST10(a,...) __CAST_TO_U64(a), __CAST9(__VA_ARGS__)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) #define __CAST11(a,...) __CAST_TO_U64(a), __CAST10(__VA_ARGS__)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) #define __CAST12(a,...) __CAST_TO_U64(a), __CAST11(__VA_ARGS__)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) /* tracepoints with more than 12 arguments will hit build error */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) #define CAST_TO_U64(...) CONCATENATE(__CAST, COUNT_ARGS(__VA_ARGS__))(__VA_ARGS__)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) #undef DECLARE_EVENT_CLASS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) #define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) static notrace void \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) __bpf_trace_##call(void *__data, proto) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) struct bpf_prog *prog = __data; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) CONCATENATE(bpf_trace_run, COUNT_ARGS(args))(prog, CAST_TO_U64(args)); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) * This part is compiled out, it is only here as a build time check
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) * to make sure that if the tracepoint handling changes, the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) * bpf probe will fail to compile unless it too is updated.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) #define __DEFINE_EVENT(template, call, proto, args, size) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) static inline void bpf_test_probe_##call(void) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) check_trace_callback_type_##call(__bpf_trace_##template); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) } \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) typedef void (*btf_trace_##call)(void *__data, proto); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) static union { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) struct bpf_raw_event_map event; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) btf_trace_##call handler; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) } __bpf_trace_tp_map_##call __used \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) __section("__bpf_raw_tp_map") = { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) .event = { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) .tp = &__tracepoint_##call, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) .bpf_func = __bpf_trace_##template, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) .num_args = COUNT_ARGS(args), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) .writable_size = size, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) }, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) #define FIRST(x, ...) x
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) #undef DEFINE_EVENT_WRITABLE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) #define DEFINE_EVENT_WRITABLE(template, call, proto, args, size) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) static inline void bpf_test_buffer_##call(void) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) /* BUILD_BUG_ON() is ignored if the code is completely eliminated, but \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) * BUILD_BUG_ON_ZERO() uses a different mechanism that is not \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) * dead-code-eliminated. \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) */ \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) FIRST(proto); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) (void)BUILD_BUG_ON_ZERO(size != sizeof(*FIRST(args))); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) } \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) __DEFINE_EVENT(template, call, PARAMS(proto), PARAMS(args), size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) #undef DEFINE_EVENT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) #define DEFINE_EVENT(template, call, proto, args) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) __DEFINE_EVENT(template, call, PARAMS(proto), PARAMS(args), 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) #undef DEFINE_EVENT_PRINT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) #define DEFINE_EVENT_PRINT(template, name, proto, args, print) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) #include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) #undef DEFINE_EVENT_WRITABLE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) #undef __DEFINE_EVENT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) #undef FIRST
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) #endif /* CONFIG_BPF_EVENTS */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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