tracing: move tracing under subsys/

Tracing subsystem is growing and although related to debugging, it does
deserve to belong into its own subsystem.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>

subsys/CMakeLists.txt

@@ -19,5 +19,6 @@ add_subdirectory(fb)
 add_subdirectory(power)
 add_subdirectory(stats)
 add_subdirectory(testsuite)
+add_subdirectory(tracing)
 add_subdirectory_if_kconfig(jwt)
 add_subdirectory(canbus)

subsys/Kconfig

@@ -35,6 +35,8 @@ source "subsys/settings/Kconfig"
 
 source "subsys/testsuite/Kconfig"
 
+source "subsys/tracing/Kconfig"
+
 source "subsys/fb/Kconfig"
 
 source "subsys/jwt/Kconfig"

subsys/debug/CMakeLists.txt

@@ -9,5 +9,3 @@ zephyr_sources_ifdef(
   CONFIG_ASAN
   asan_hacks.c
   )
-
-add_subdirectory(tracing)

subsys/debug/Kconfig

@@ -39,133 +39,6 @@ config DEBUG
 	  only disables optimization, more debugging variants can be selected
 	  from here to allow more debugging.
 
-config TRACING
-	bool "Enabling Tracing"
-	help
-	  Enable system tracing. This requires a backend such as SEGGER
-	  Systemview to be enabled as well.
-
-if TRACING
-
-choice
-	prompt "Tracing Method"
-	default TRACING_ASYNC
-
-config TRACING_SYNC
-	bool "Synchronous Tracing"
-	select RING_BUFFER
-	help
-	  Enable synchronous tracing. This requires the backend to be
-	  very low-latency.
-
-config TRACING_ASYNC
-	bool "Asynchronous Tracing"
-	select RING_BUFFER
-	help
-	  Enable asynchronous tracing. This will buffer all the tracing
-	  packets to the ring buffer first, tracing thread will try to
-	  output as much data in ring buffer as possible when tracing
-	  thread get scheduled.
-
-endchoice
-
-config TRACING_THREAD_STACK_SIZE
-	int "Stack size of tracing thread"
-	default 1024
-	depends on TRACING_ASYNC
-	help
-	  Stack size of tracing thread.
-
-config TRACING_THREAD_WAIT_THRESHOLD
-	int "Tracing thread waiting threshold"
-	default 100
-	depends on TRACING_ASYNC
-	help
-	  Tracing thread waiting period given in milliseconds after
-	  every first packet put to tracing buffer.
-
-config TRACING_BUFFER_SIZE
-	int "Size of tracing buffer"
-	default 2048 if TRACING_ASYNC
-	default TRACING_PACKET_MAX_SIZE if TRACING_SYNC
-	range 32 65536
-	help
-	  Size of tracing buffer. If TRACING_ASYNC is enabled, tracing buffer
-	  is used as ring_buffer to buffer data packet and string packet. If
-	  TRACING_SYNC is enabled, it's used to hold the formated data.
-
-config TRACING_PACKET_MAX_SIZE
-	int "Max size of one tracing packet"
-	default 32
-	help
-	  Max size of one tracing packet.
-
-choice
-	prompt "Tracing Backend"
-	default TRACING_BACKEND_UART
-
-config TRACING_BACKEND_UART
-	bool "Enable UART backend"
-	depends on UART_CONSOLE
-	depends on TRACING_ASYNC
-	help
-	  When enabled backend is using UART to output tracing data.
-
-config TRACING_BACKEND_USB
-	bool "Enable USB backend"
-	depends on TRACING_ASYNC
-	help
-	  When enabled backend is using USB to output tracing data.
-
-config TRACING_BACKEND_POSIX
-	bool "Enable POSIX backend"
-	depends on TRACING_SYNC
-	depends on ARCH_POSIX
-	help
-	  When enabled backend is using posix API to output tracing
-	  data to file system.
-
-endchoice
-
-config TRACING_BACKEND_UART_NAME
-	string "Device Name of UART Device for UART backend"
-	default "$(dt_chosen_label,$(DT_CHOSEN_Z_CONSOLE))" if HAS_DTS
-	default "UART_0"
-	depends on TRACING_BACKEND_UART
-	help
-	  This option specifies the name of UART device to be used for
-	  tracing backend.
-
-config TRACING_USB_MPS
-	int "USB backend max packet size"
-	default 64
-	depends on TRACING_BACKEND_USB
-	help
-	  USB tracing backend max packet size(endpoint MPS).
-
-config TRACING_HANDLE_HOST_CMD
-	bool "Enable host cmd handle"
-	select UART_INTERRUPT_DRIVEN if TRACING_BACKEND_UART
-	help
-	  When enabled tracing will handle cmd from host to dynamically
-	  enable and disable tracing to have host capture tracing stream
-	  data conveniently.
-
-config TRACING_CMD_BUFFER_SIZE
-	int "Size of tracing cmd buffer"
-	default 32
-	range 32 128
-	help
-	  Size of tracing command buffer.
-
-config TRACING_ISR
-	bool "Enabling Tracing ISR"
-	help
-	  Enable tracing ISR. This requires the backend to be
-	  very low-latency.
-
-endif
-
 config ASAN
 	bool "Build with address sanitizer"
 	depends on ARCH_POSIX
@@ -409,53 +282,5 @@ config OPENOCD_SUPPORT
 	  OpenOCD to determine the state of running threads.  (This option
 	  selects CONFIG_THREAD_MONITOR, so all of its caveats are implied.)
 
-config TRACING_CPU_STATS
-	bool "Enable CPU usage tracing"
-	select THREAD_MONITOR
-	select THREAD_STACK_INFO
-	select TRACING
-	help
-	  Module provides information about percent of CPU usage based on
-	  tracing hooks for threads switching in and out, interrupts enters
-	  and exits (only distinguishes between idle thread, non idle thread
-	  and scheduler). Use provided API or enable automatic logging to
-	  get values.
-
-config TRACING_CPU_STATS_LOG
-	bool "Enable current CPU usage logging"
-	depends on TRACING_CPU_STATS
-	help
-	  Periodically displays information about CPU usage.
-
-config TRACING_CPU_STATS_INTERVAL
-	int "Logging interval for CPU measurements [ms]"
-	default 2000
-	depends on TRACING_CPU_STATS_LOG
-	help
-	  Time period of displaying information about CPU usage.
-
-config TRACING_CTF
-	bool "Tracing via Common Trace Format support"
-	select THREAD_MONITOR
-	select TRACING
-	help
-	  Enable tracing to a Common Trace Format stream.
-
-config TRACING_CTF_TIMESTAMP
-	bool "Enable CTF internal timestamp"
-	default y
-	help
-	  Timestamp prefix will be added to the beginning of CTF
-	  event internally.
-
-config TRACING_TEST
-	bool "Tracing for test usage"
-	depends on TRACING
-	help
-	  Enable tracing for testing kinds of format purpose. It must
-	  implement the tracing hooks defined in tracing_test.h
-
-
-source "subsys/debug/Kconfig.segger"
 
 endmenu

subsys/tracing/Kconfig

@@ -0,0 +1,182 @@
+# Debug configuration options
+
+# Copyright (c) 2015 Wind River Systems, Inc.
+# SPDX-License-Identifier: Apache-2.0
+
+DT_CHOSEN_Z_CONSOLE := zephyr,console
+
+config TRACING
+	bool "Enabling Tracing"
+	help
+	  Enable system tracing. This requires a backend such as SEGGER
+	  Systemview to be enabled as well.
+
+if TRACING
+
+choice
+	prompt "Tracing Method"
+	default TRACING_ASYNC
+
+config TRACING_SYNC
+	bool "Synchronous Tracing"
+	select RING_BUFFER
+	help
+	  Enable synchronous tracing. This requires the backend to be
+	  very low-latency.
+
+config TRACING_ASYNC
+	bool "Asynchronous Tracing"
+	select RING_BUFFER
+	help
+	  Enable asynchronous tracing. This will buffer all the tracing
+	  packets to the ring buffer first, tracing thread will try to
+	  output as much data in ring buffer as possible when tracing
+	  thread get scheduled.
+
+endchoice
+
+config TRACING_THREAD_STACK_SIZE
+	int "Stack size of tracing thread"
+	default 1024
+	depends on TRACING_ASYNC
+	help
+	  Stack size of tracing thread.
+
+config TRACING_THREAD_WAIT_THRESHOLD
+	int "Tracing thread waiting threshold"
+	default 100
+	depends on TRACING_ASYNC
+	help
+	  Tracing thread waiting period given in milliseconds after
+	  every first packet put to tracing buffer.
+
+config TRACING_BUFFER_SIZE
+	int "Size of tracing buffer"
+	default 2048 if TRACING_ASYNC
+	default TRACING_PACKET_MAX_SIZE if TRACING_SYNC
+	range 32 65536
+	help
+	  Size of tracing buffer. If TRACING_ASYNC is enabled, tracing buffer
+	  is used as ring_buffer to buffer data packet and string packet. If
+	  TRACING_SYNC is enabled, it's used to hold the formated data.
+
+config TRACING_PACKET_MAX_SIZE
+	int "Max size of one tracing packet"
+	default 32
+	help
+	  Max size of one tracing packet.
+
+choice
+	prompt "Tracing Backend"
+	default TRACING_BACKEND_UART
+
+config TRACING_BACKEND_UART
+	bool "Enable UART backend"
+	depends on UART_CONSOLE
+	depends on TRACING_ASYNC
+	help
+	  When enabled backend is using UART to output tracing data.
+
+config TRACING_BACKEND_USB
+	bool "Enable USB backend"
+	depends on TRACING_ASYNC
+	help
+	  When enabled backend is using USB to output tracing data.
+
+config TRACING_BACKEND_POSIX
+	bool "Enable POSIX backend"
+	depends on TRACING_SYNC
+	depends on ARCH_POSIX
+	help
+	  When enabled backend is using posix API to output tracing
+	  data to file system.
+
+endchoice
+
+config TRACING_BACKEND_UART_NAME
+	string "Device Name of UART Device for UART backend"
+	default "$(dt_chosen_label,$(DT_CHOSEN_Z_CONSOLE))" if HAS_DTS
+	default "UART_0"
+	depends on TRACING_BACKEND_UART
+	help
+	  This option specifies the name of UART device to be used for
+	  tracing backend.
+
+config TRACING_USB_MPS
+	int "USB backend max packet size"
+	default 64
+	depends on TRACING_BACKEND_USB
+	help
+	  USB tracing backend max packet size(endpoint MPS).
+
+config TRACING_HANDLE_HOST_CMD
+	bool "Enable host cmd handle"
+	select UART_INTERRUPT_DRIVEN if TRACING_BACKEND_UART
+	help
+	  When enabled tracing will handle cmd from host to dynamically
+	  enable and disable tracing to have host capture tracing stream
+	  data conveniently.
+
+config TRACING_CMD_BUFFER_SIZE
+	int "Size of tracing cmd buffer"
+	default 32
+	range 32 128
+	help
+	  Size of tracing command buffer.
+
+config TRACING_ISR
+	bool "Enabling Tracing ISR"
+	help
+	  Enable tracing ISR. This requires the backend to be
+	  very low-latency.
+
+endif
+
+config TRACING_CPU_STATS
+	bool "Enable CPU usage tracing"
+	select THREAD_MONITOR
+	select THREAD_STACK_INFO
+	select TRACING
+	help
+	  Module provides information about percent of CPU usage based on
+	  tracing hooks for threads switching in and out, interrupts enters
+	  and exits (only distinguishes between idle thread, non idle thread
+	  and scheduler). Use provided API or enable automatic logging to
+	  get values.
+
+config TRACING_CPU_STATS_LOG
+	bool "Enable current CPU usage logging"
+	depends on TRACING_CPU_STATS
+	help
+	  Periodically displays information about CPU usage.
+
+config TRACING_CPU_STATS_INTERVAL
+	int "Logging interval for CPU measurements [ms]"
+	default 2000
+	depends on TRACING_CPU_STATS_LOG
+	help
+	  Time period of displaying information about CPU usage.
+
+config TRACING_CTF
+	bool "Tracing via Common Trace Format support"
+	select THREAD_MONITOR
+	select TRACING
+	help
+	  Enable tracing to a Common Trace Format stream.
+
+config TRACING_CTF_TIMESTAMP
+	bool "Enable CTF internal timestamp"
+	default y
+	help
+	  Timestamp prefix will be added to the beginning of CTF
+	  event internally.
+
+config TRACING_TEST
+	bool "Tracing for test usage"
+	depends on TRACING
+	help
+	  Enable tracing for testing kinds of format purpose. It must
+	  implement the tracing hooks defined in tracing_test.h
+
+
+source "subsys/tracing/Kconfig.segger"