mirror of
https://github.com/zephyrproject-rtos/zephyr
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1d7505cd7a
Tracing backed is not checking if the chosen backed specifies the init function and is asuming its always present which could not be true. Signed-off-by: Emil Obalski <emil.obalski@nordicsemi.no>
109 lines
2.2 KiB
C
109 lines
2.2 KiB
C
/*
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* Copyright (c) 2019 Intel corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef _TRACE_BACKEND_H
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#define _TRACE_BACKEND_H
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#include <string.h>
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#include <sys/util.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief Tracing backend
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* @defgroup Tracing_backend Tracing backend
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* @{
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* @}
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*/
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struct tracing_backend;
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/**
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* @brief Tracing backend API.
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*/
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struct tracing_backend_api {
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void (*init)(void);
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void (*output)(const struct tracing_backend *backend,
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uint8_t *data, uint32_t length);
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};
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/**
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* @brief Tracing backend structure.
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*/
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struct tracing_backend {
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const char *name;
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const struct tracing_backend_api *api;
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};
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/**
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* @brief Create tracing_backend instance.
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*
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* @param _name Instance name.
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* @param _api Tracing backend API.
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*/
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#define TRACING_BACKEND_DEFINE(_name, _api) \
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static const Z_STRUCT_SECTION_ITERABLE(tracing_backend, _name) = \
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{ \
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.name = STRINGIFY(_name), \
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.api = &_api \
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}
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/**
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* @brief Initialize tracing backend.
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*
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* @param backend Pointer to tracing_backend instance.
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*/
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static inline void tracing_backend_init(
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const struct tracing_backend *backend)
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{
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if (backend && backend->api && backend->api->init) {
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backend->api->init();
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}
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}
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/**
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* @brief Output tracing packet with tracing backend.
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*
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* @param backend Pointer to tracing_backend instance.
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* @param data Address of outputing buffer.
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* @param length Length of outputing buffer.
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*/
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static inline void tracing_backend_output(
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const struct tracing_backend *backend,
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uint8_t *data, uint32_t length)
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{
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if (backend && backend->api) {
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backend->api->output(backend, data, length);
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}
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}
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/**
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* @brief Get tracing backend based on the name of
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* tracing backend in tracing backend section.
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*
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* @param name Name of wanted tracing backend.
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*
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* @return Pointer of the wanted backend or NULL.
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*/
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static inline struct tracing_backend *tracing_backend_get(char *name)
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{
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Z_STRUCT_SECTION_FOREACH(tracing_backend, backend) {
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if (strcmp(backend->name, name) == 0) {
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return backend;
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}
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}
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return NULL;
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}
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#ifdef __cplusplus
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}
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#endif
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#endif
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