rte_trace_point_register.h

/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright(C) 2020 Marvell International Ltd.
 */

#ifndef _RTE_TRACE_POINT_REGISTER_H_
#define _RTE_TRACE_POINT_REGISTER_H_

#ifdef __cplusplus
extern "C" {
#endif

#ifdef _RTE_TRACE_POINT_H_
#error for registration, include this file first before <rte_trace_point.h>
#endif

#include <rte_per_lcore.h>
#include <rte_trace_point.h>

RTE_DECLARE_PER_LCORE(volatile int, trace_point_sz);

#define RTE_TRACE_POINT_REGISTER(trace, name) \
rte_trace_point_t __rte_section("__rte_trace_point") __##trace; \
static const char __##trace##_name[] = RTE_STR(name); \
RTE_INIT(trace##_init) \
{ \
    __rte_trace_point_register(&__##trace, __##trace##_name, \
        (void (*)(void)) trace); \
}

#define __rte_trace_point_emit_header_generic(t) \
    RTE_PER_LCORE(trace_point_sz) = __RTE_TRACE_EVENT_HEADER_SZ

#define __rte_trace_point_emit_header_fp(t) \
    __rte_trace_point_emit_header_generic(t)

#define __rte_trace_point_emit(in, type) \
do { \
    RTE_BUILD_BUG_ON(sizeof(type) != sizeof(typeof(in))); \
    __rte_trace_point_emit_field(sizeof(type), RTE_STR(in), \
        RTE_STR(type)); \
} while (0)

#define rte_trace_point_emit_string(in) \
do { \
    RTE_SET_USED(in); \
    __rte_trace_point_emit_field(__RTE_TRACE_EMIT_STRING_LEN_MAX, \
        RTE_STR(in)"[32]", "string_bounded_t"); \
} while (0)

#define rte_trace_point_emit_blob(in, len) \
do { \
    RTE_SET_USED(in); \
    __rte_trace_point_emit(len, uint8_t); \
    __rte_trace_point_emit_field(RTE_TRACE_BLOB_LEN_MAX, \
        RTE_STR(in)"[" RTE_STR(RTE_TRACE_BLOB_LEN_MAX)"]", \
        RTE_STR(uint8_t)); \
} while (0)

#ifdef __cplusplus
}
#endif

#endif /* _RTE_TRACE_POINT_REGISTER_H_ */