lib/eal/include/rte_trace_point_register.h

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(C) 2020 Marvell International Ltd.
   3  */
   4
   5 #ifndef _RTE_TRACE_POINT_REGISTER_H_
   6 #define _RTE_TRACE_POINT_REGISTER_H_
   7
   8 #ifdef __cplusplus
   9 extern "C" {
  10 #endif
  11
  12 #ifdef _RTE_TRACE_POINT_H_
  13 #error for registration, include this file first before <rte_trace_point.h>
  14 #endif
  15
  16 #include <rte_per_lcore.h>
  17 #include <rte_trace_point.h>
  18
  19 RTE_DECLARE_PER_LCORE(volatile int, trace_point_sz);
  20
  21 #define RTE_TRACE_POINT_REGISTER(trace, name) \
  22 rte_trace_point_t __attribute__((section("__rte_trace_point"))) __##trace; \
  23 RTE_INIT(trace##_init) \
  24 { \
  25         __rte_trace_point_register(&__##trace, RTE_STR(name), \
  26                 (void (*)(void)) trace); \
  27 }
  28
  29 #define __rte_trace_point_emit_header_generic(t) \
  30         RTE_PER_LCORE(trace_point_sz) = __RTE_TRACE_EVENT_HEADER_SZ
  31
  32 #define __rte_trace_point_emit_header_fp(t) \
  33         __rte_trace_point_emit_header_generic(t)
  34
  35 #define __rte_trace_point_emit(in, type) \
  36 do { \
  37         RTE_BUILD_BUG_ON(sizeof(type) != sizeof(typeof(in))); \
  38         __rte_trace_point_emit_field(sizeof(type), RTE_STR(in), \
  39                 RTE_STR(type)); \
  40 } while (0)
  41
  42 #define rte_trace_point_emit_string(in) \
  43 do { \
  44         RTE_SET_USED(in); \
  45         __rte_trace_point_emit_field(__RTE_TRACE_EMIT_STRING_LEN_MAX, \
  46                 RTE_STR(in)"[32]", "string_bounded_t"); \
  47 } while (0)
  48
  49 #ifdef __cplusplus
  50 }
  51 #endif
  52
  53 #endif /* _RTE_TRACE_POINT_REGISTER_H_ */