lib/librte_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 _RTE_TRACE_POINT_H_
   9 #error for registration, include this file first before <rte_trace_point.h>
  10 #endif
  11
  12 #include <rte_per_lcore.h>
  13 #include <rte_trace_point.h>
  14
  15 RTE_DECLARE_PER_LCORE(volatile int, trace_point_sz);
  16
  17 #define RTE_TRACE_POINT_REGISTER(trace, name) \
  18 rte_trace_point_t __attribute__((section("__rte_trace_point"))) __##trace; \
  19 RTE_INIT(trace##_init) \
  20 { \
  21         __rte_trace_point_register(&__##trace, RTE_STR(name), \
  22                 (void (*)(void)) trace); \
  23 }
  24
  25 #define __rte_trace_point_emit_header_generic(t) \
  26         RTE_PER_LCORE(trace_point_sz) = __RTE_TRACE_EVENT_HEADER_SZ
  27
  28 #define __rte_trace_point_emit_header_fp(t) \
  29         __rte_trace_point_emit_header_generic(t)
  30
  31 #define __rte_trace_point_emit(in, type) \
  32 do { \
  33         RTE_BUILD_BUG_ON(sizeof(type) != sizeof(typeof(in))); \
  34         __rte_trace_point_emit_field(sizeof(type), RTE_STR(in), \
  35                 RTE_STR(type)); \
  36 } while (0)
  37
  38 #define rte_trace_point_emit_string(in) \
  39 do { \
  40         RTE_SET_USED(in); \
  41         __rte_trace_point_emit_field(__RTE_TRACE_EMIT_STRING_LEN_MAX, \
  42                 RTE_STR(in)"[32]", "string_bounded_t"); \
  43 } while (0)
  44
  45 #endif /* _RTE_TRACE_POINT_REGISTER_H_ */