logging: Add logging v2 implementation for log_msg

Added implementation of log_msg2 which is creating log messages
using cbprintf packaging and storing them in circular ring buffer
(mpsg_pbuf).

Signed-off-by: Krzysztof Chruscinski <[email protected]>

Author: nordic-krch

include/linker/common-rom.ld

@@ -153,6 +153,13 @@
 	} GROUP_LINK_IN(ROMABLE_REGION)
 #endif /* CONFIG_PCIE */
 
+	SECTION_DATA_PROLOGUE(log_strings_sections,,)
+	{
+		__log_strings_start = .;
+		KEEP(*(SORT(.log_strings*)));
+		__log_strings_end = .;
+	} GROUP_ROM_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
+
 	SECTION_DATA_PROLOGUE(log_const_sections,,)
 	{
 		__log_const_start = .;

include/logging/log_core.h

@@ -7,6 +7,7 @@
 #define ZEPHYR_INCLUDE_LOGGING_LOG_CORE_H_
 
 #include <logging/log_msg.h>
+#include <logging/log_core2.h>
 #include <logging/log_instance.h>
 #include <stdbool.h>
 #include <stdint.h>
@@ -438,6 +439,7 @@ enum log_strdup_action {
 			  LOG_LEVEL_INTERNAL_RAW_STRING, NULL, 0, __VA_ARGS__);\
 } while (0)
 
+
 /** @brief Get name of the log source.
  *
  * @param source_id Source ID.

include/logging/log_core2.h

@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2021 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+#ifndef ZEPHYR_INCLUDE_LOGGING_LOG_CORE2_H_
+#define ZEPHYR_INCLUDE_LOGGING_LOG_CORE2_H_
+
+#include <logging/log_msg2.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define Z_TRACING_LOG_TRACE(id) do { \
+	Z_TRACING_LOG_HDR_INIT(_msg, id); \
+	z_log_msg2_put_trace(_msg); \
+} while (0)
+
+#define Z_TRACING_LOG_TRACE_PTR(id, ptr) do { \
+	Z_TRACING_LOG_HDR_INIT(_msg, id); \
+	z_log_msg2_put_trace_ptr(_msg, ptr); \
+} while (0)
+
+void z_log_msg2_put_trace(struct log_msg2_trace trace);
+
+void z_log_msg2_put_trace_ptr(struct log_msg2_trace hdr, void *data);
+
+
+/** @brief Initialize module for handling logging message. */
+void z_log_msg2_init(void);
+
+/** @brief Allocate log message.
+ *
+ * @param wlen Length in 32 bit words.
+ *
+ * @return allocated space or null if cannot be allocated.
+ */
+struct log_msg2 *z_log_msg2_alloc(uint32_t wlen);
+
+/** @brief Commit log message.
+ *
+ * @param msg Message.
+ */
+void z_log_msg2_commit(struct log_msg2 *msg);
+
+/** @brief Get pending log message.
+ *
+ * @param[out] len Message length in bytes is written is @p len is not null.
+ *
+ * @param Message or null if no pending messages.
+ */
+union log_msg2_generic *z_log_msg2_claim(void);
+
+/** @brief Free message.
+ *
+ * @param msg Message.
+ */
+void z_log_msg2_free(union log_msg2_generic *msg);
+
+/** @brief Check if there are any message pending.
+ *
+ * @retval true if at least one message is pending.
+ * @retval false if no message is pending.
+ */
+bool z_log_msg2_pending(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ZEPHYR_INCLUDE_LOGGING_LOG_CORE2_H_ */

include/logging/log_ctrl.h

@@ -6,14 +6,14 @@
 #ifndef ZEPHYR_INCLUDE_LOGGING_LOG_CTRL_H_
 #define ZEPHYR_INCLUDE_LOGGING_LOG_CTRL_H_
 
-#include <logging/log_backend.h>
 #include <kernel.h>
+#include <logging/log_backend.h>
+#include <logging/log_msg.h>
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
-
 /**
  * @brief Logger
  * @defgroup logger Logger system
@@ -29,7 +29,7 @@ extern "C" {
  * @{
  */
 
-typedef uint32_t (*timestamp_get_t)(void);
+typedef log_timestamp_t (*log_timestamp_get_t)(void);
 
 /** @brief Function system initialization of the logger.
  *
@@ -63,7 +63,8 @@ void log_thread_set(k_tid_t process_tid);
  *
  * @return 0 on success or error.
  */
-int log_set_timestamp_func(timestamp_get_t timestamp_getter, uint32_t freq);
+int log_set_timestamp_func(log_timestamp_get_t timestamp_getter,
+			   uint32_t freq);
 
 /**
  * @brief Switch the logger subsystem to the panic mode.

include/logging/log_msg.h

@@ -9,6 +9,7 @@
 #include <sys/atomic.h>
 #include <sys/util.h>
 #include <string.h>
+#include <logging/log_msg2.h>
 
 #ifdef __cplusplus
 extern "C" {