cleanup: include/: move tracing.h to debug/tracing.h

move tracing.h to debug/tracing.h and
create a shim for backward-compatibility.

No functional changes to the headers.
A warning in the shim can be controlled with CONFIG_COMPAT_INCLUDES.

Related to #16539

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

arch/arm/core/irq_manage.c

@@ -23,7 +23,7 @@
 #include <sw_isr_table.h>
 #include <irq.h>
 #include <kernel_structs.h>
-#include <tracing.h>
+#include <debug/tracing.h>
 
 extern void __reserved(void);
 

arch/nios2/core/irq_manage.c

@@ -19,7 +19,7 @@
 #include <sw_isr_table.h>
 #include <ksched.h>
 #include <kswap.h>
-#include <tracing.h>
+#include <debug/tracing.h>
 
 void z_irq_spurious(void *unused)
 {

arch/posix/core/cpuhalt.c

@@ -22,7 +22,7 @@
 
 #include "posix_core.h"
 #include "posix_soc_if.h"
-#include <tracing.h>
+#include <debug/tracing.h>
 
 /**
  *

arch/x86/core/ia32/cpuhalt.c

@@ -24,7 +24,7 @@
  */
 
 #include <zephyr.h>
-#include <tracing.h>
+#include <debug/tracing.h>
 #include <arch/cpu.h>
 
 #ifdef CONFIG_BOOT_TIME_MEASUREMENT

arch/x86/core/ia32/irq_manage.c

@@ -20,7 +20,7 @@
 #include <misc/__assert.h>
 #include <misc/printk.h>
 #include <irq.h>
-#include <tracing.h>
+#include <debug/tracing.h>
 #include <kswap.h>
 #include <arch/x86/segmentation.h>
 

arch/x86_64/core/x86_64.c

@@ -5,7 +5,7 @@
  */
 #include <kernel_internal.h>
 #include <kernel_structs.h>
-#include <tracing.h>
+#include <debug/tracing.h>
 #include <ksched.h>
 #include <irq_offload.h>
 #include "xuk.h"

arch/xtensa/core/cpu_idle.c

@@ -3,7 +3,7 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
-#include <tracing.h>
+#include <debug/tracing.h>
 
 /*
  * @brief Put the CPU in low-power mode

boards/posix/native_posix/irq_handler.c

@@ -18,7 +18,7 @@
 #include "board_soc.h"
 #include "sw_isr_table.h"
 #include "soc.h"
-#include <tracing.h>
+#include <debug/tracing.h>
 
 typedef void (*normal_irq_f_ptr)(void *);
 typedef int (*direct_irq_f_ptr)(void);

boards/posix/nrf52_bsim/irq_handler.c

@@ -17,7 +17,7 @@
 #include "sw_isr_table.h"
 #include "soc.h"
 #include "bs_tracing.h"
-#include <tracing.h>
+#include <debug/tracing.h>
 #include "bstests.h"
 
 static bool CPU_will_be_awaken_from_WFE;

include/debug/tracing.h

@@ -0,0 +1,138 @@
+/*
+ * Copyright (c) 2018 Intel Corporation
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+#ifndef ZEPHYR_INCLUDE_DEBUG_TRACING_H_
+#define ZEPHYR_INCLUDE_DEBUG_TRACING_H_
+
+#include <kernel.h>
+
+/* Below IDs are used with systemview, not final to the zephyr tracing API */
+#define SYS_TRACE_ID_OFFSET                  (32u)
+
+#define SYS_TRACE_ID_MUTEX_INIT              (1u + SYS_TRACE_ID_OFFSET)
+#define SYS_TRACE_ID_MUTEX_UNLOCK            (2u + SYS_TRACE_ID_OFFSET)
+#define SYS_TRACE_ID_MUTEX_LOCK              (3u + SYS_TRACE_ID_OFFSET)
+#define SYS_TRACE_ID_SEMA_INIT               (4u + SYS_TRACE_ID_OFFSET)
+#define SYS_TRACE_ID_SEMA_GIVE               (5u + SYS_TRACE_ID_OFFSET)
+#define SYS_TRACE_ID_SEMA_TAKE               (6u + SYS_TRACE_ID_OFFSET)
+
+#ifdef CONFIG_TRACING
+void z_sys_trace_idle(void);
+void z_sys_trace_isr_enter(void);
+void z_sys_trace_isr_exit(void);
+void z_sys_trace_isr_exit_to_scheduler(void);
+void z_sys_trace_thread_switched_in(void);
+void z_sys_trace_thread_switched_out(void);
+#endif
+
+#ifdef CONFIG_SEGGER_SYSTEMVIEW
+#include "tracing_sysview.h"
+
+#elif defined CONFIG_TRACING_CPU_STATS
+#include "tracing_cpu_stats.h"
+
+#elif defined CONFIG_TRACING_CTF
+#include "tracing_ctf.h"
+
+#else
+
+/**
+ * @brief Called before a thread has been selected to run
+ */
+#define sys_trace_thread_switched_out()
+
+/**
+ * @brief Called after a thread has been selected to run
+ */
+#define sys_trace_thread_switched_in()
+
+/**
+ * @brief Called when setting priority of a thread
+ */
+#define sys_trace_thread_priority_set(thread)
+
+/**
+ * @brief Called when a thread is being created
+ */
+#define sys_trace_thread_create(thread)
+
+/**
+ * @brief Called when a thread is being aborted
+ *
+ */
+#define sys_trace_thread_abort(thread)
+
+/**
+ * @brief Called when a thread is being suspended
+ * @param thread Thread structure
+ */
+#define sys_trace_thread_suspend(thread)
+
+/**
+ * @brief Called when a thread is being resumed from suspension
+ * @param thread Thread structure
+ */
+#define sys_trace_thread_resume(thread)
+
+/**
+ * @brief Called when a thread is ready to run
+ * @param thread Thread structure
+ */
+#define sys_trace_thread_ready(thread)
+
+/**
+ * @brief Called when a thread is pending
+ * @param thread Thread structure
+ */
+#define sys_trace_thread_pend(thread)
+
+/**
+ * @brief Provide information about specific thread
+ * @param thread Thread structure
+ */
+#define sys_trace_thread_info(thread)
+
+/**
+ * @brief Called when entering an ISR
+ */
+#define sys_trace_isr_enter()
+
+/**
+ * @brief Called when exiting an ISR
+ */
+#define sys_trace_isr_exit()
+
+/**
+ * @brief Called when exiting an ISR and switching to scheduler
+ */
+#define sys_trace_isr_exit_to_scheduler()
+
+/**
+ * @brief Can be called with any id signifying a new call
+ * @param id ID of the operation that was started
+ */
+#define sys_trace_void(id)
+
+/**
+ * @brief Can be called with any id signifying ending a call
+ * @param id ID of the operation that was completed
+ */
+#define sys_trace_end_call(id)
+
+
+#define z_sys_trace_idle()
+
+#define z_sys_trace_isr_enter()
+
+#define z_sys_trace_isr_exit()
+
+#define z_sys_trace_isr_exit_to_scheduler()
+
+#define z_sys_trace_thread_switched_in()
+
+#define z_sys_trace_thread_switched_out()
+
+#endif
+#endif

include/kernel.h

@@ -5025,7 +5025,7 @@ __syscall int k_float_disable(struct k_thread *thread);
 }
 #endif
 
-#include <tracing.h>
+#include <debug/tracing.h>
 #include <syscalls/kernel.h>
 
 #endif /* !_ASMLANGUAGE */

include/tracing.h

@@ -1,138 +1,15 @@
 /*
- * Copyright (c) 2018 Intel Corporation
+ * Copyright (c) 2019 Intel Corporation
  *
  * SPDX-License-Identifier: Apache-2.0
  */
 #ifndef ZEPHYR_INCLUDE_TRACING_H_
 #define ZEPHYR_INCLUDE_TRACING_H_
 
-#include <kernel.h>
-
-/* Below IDs are used with systemview, not final to the zephyr tracing API */
-#define SYS_TRACE_ID_OFFSET                  (32u)
-
-#define SYS_TRACE_ID_MUTEX_INIT              (1u + SYS_TRACE_ID_OFFSET)
-#define SYS_TRACE_ID_MUTEX_UNLOCK            (2u + SYS_TRACE_ID_OFFSET)
-#define SYS_TRACE_ID_MUTEX_LOCK              (3u + SYS_TRACE_ID_OFFSET)
-#define SYS_TRACE_ID_SEMA_INIT               (4u + SYS_TRACE_ID_OFFSET)
-#define SYS_TRACE_ID_SEMA_GIVE               (5u + SYS_TRACE_ID_OFFSET)
-#define SYS_TRACE_ID_SEMA_TAKE               (6u + SYS_TRACE_ID_OFFSET)
-
-#ifdef CONFIG_TRACING
-void z_sys_trace_idle(void);
-void z_sys_trace_isr_enter(void);
-void z_sys_trace_isr_exit(void);
-void z_sys_trace_isr_exit_to_scheduler(void);
-void z_sys_trace_thread_switched_in(void);
-void z_sys_trace_thread_switched_out(void);
+#ifndef CONFIG_COMPAT_INCLUDES
+#warning "This header file has moved, include <debug/tracing.h> instead."
 #endif
 
-#ifdef CONFIG_SEGGER_SYSTEMVIEW
-#include "tracing_sysview.h"
-
-#elif defined CONFIG_TRACING_CPU_STATS
-#include "tracing_cpu_stats.h"
-
-#elif defined CONFIG_TRACING_CTF
-#include "tracing_ctf.h"
-
-#else
-
-/**
- * @brief Called before a thread has been selected to run
- */
-#define sys_trace_thread_switched_out()
-
-/**
- * @brief Called after a thread has been selected to run
- */
-#define sys_trace_thread_switched_in()
-
-/**
- * @brief Called when setting priority of a thread
- */
-#define sys_trace_thread_priority_set(thread)
-
-/**
- * @brief Called when a thread is being created
- */
-#define sys_trace_thread_create(thread)
-
-/**
- * @brief Called when a thread is being aborted
- *
- */
-#define sys_trace_thread_abort(thread)
-
-/**
- * @brief Called when a thread is being suspended
- * @param thread Thread structure
- */
-#define sys_trace_thread_suspend(thread)
-
-/**
- * @brief Called when a thread is being resumed from suspension
- * @param thread Thread structure
- */
-#define sys_trace_thread_resume(thread)
-
-/**
- * @brief Called when a thread is ready to run
- * @param thread Thread structure
- */
-#define sys_trace_thread_ready(thread)
-
-/**
- * @brief Called when a thread is pending
- * @param thread Thread structure
- */
-#define sys_trace_thread_pend(thread)
-
-/**
- * @brief Provide information about specific thread
- * @param thread Thread structure
- */
-#define sys_trace_thread_info(thread)
-
-/**
- * @brief Called when entering an ISR
- */
-#define sys_trace_isr_enter()
-
-/**
- * @brief Called when exiting an ISR
- */
-#define sys_trace_isr_exit()
-
-/**
- * @brief Called when exiting an ISR and switching to scheduler
- */
-#define sys_trace_isr_exit_to_scheduler()
-
-/**
- * @brief Can be called with any id signifying a new call
- * @param id ID of the operation that was started
- */
-#define sys_trace_void(id)
+#include <debug/tracing.h>
 
-/**
- * @brief Can be called with any id signifying ending a call
- * @param id ID of the operation that was completed
- */
-#define sys_trace_end_call(id)
-
-
-#define z_sys_trace_idle()
-
-#define z_sys_trace_isr_enter()
-
-#define z_sys_trace_isr_exit()
-
-#define z_sys_trace_isr_exit_to_scheduler()
-
-#define z_sys_trace_thread_switched_in()
-
-#define z_sys_trace_thread_switched_out()
-
-#endif
-#endif
+#endif /* ZEPHYR_INCLUDE_TRACING_H_ */

kernel/include/ksched.h

@@ -9,7 +9,7 @@
 
 #include <kernel_structs.h>
 #include <timeout_q.h>
-#include <tracing.h>
+#include <debug/tracing.h>
 #include <stdbool.h>
 
 BUILD_ASSERT(K_LOWEST_APPLICATION_THREAD_PRIO

kernel/init.c

@@ -31,7 +31,7 @@
 #include <kswap.h>
 #include <entropy.h>
 #include <logging/log_ctrl.h>
-#include <tracing.h>
+#include <debug/tracing.h>
 #include <stdbool.h>
 #include <misc/gcov.h>
 

kernel/mutex.c

@@ -36,7 +36,7 @@
 #include <errno.h>
 #include <init.h>
 #include <syscall_handler.h>
-#include <tracing.h>
+#include <debug/tracing.h>
 
 /* We use a global spinlock here because some of the synchronization
  * is protecting things like owner thread priorities which aren't

kernel/sem.c

@@ -27,7 +27,7 @@
 #include <ksched.h>
 #include <init.h>
 #include <syscall_handler.h>
-#include <tracing.h>
+#include <debug/tracing.h>
 
 /* We use a system-wide lock to synchronize semaphores, which has
  * unfortunate performance impact vs. using a per-object lock

kernel/thread.c

@@ -29,7 +29,7 @@
 #include <kernel_internal.h>
 #include <kswap.h>
 #include <init.h>
-#include <tracing.h>
+#include <debug/tracing.h>
 #include <stdbool.h>
 
 static struct k_spinlock lock;

soc/riscv32/riscv-privilege/common/idle.c

@@ -9,7 +9,7 @@
 #include <irq.h>
 #include <soc.h>
 
-#include <tracing.h>
+#include <debug/tracing.h>
 
 static ALWAYS_INLINE void riscv_idle(unsigned int key)
 {