kernel: event_logger: remove kernel_event_logger

Move to more generic tracing hooks that can be implemented in different
ways and do not interfere with the kernel.

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

Author: nashif

arch/arc/core/cpu_idle.S

@@ -35,9 +35,9 @@ SECTION_VAR(BSS, k_cpu_sleep_mode)
 
 SECTION_FUNC(TEXT, k_cpu_idle)
 
-#ifdef CONFIG_KERNEL_EVENT_LOGGER_SLEEP
+#ifdef CONFIG_TRACING
 	push_s blink
-	jl    _sys_k_event_logger_enter_sleep
+	jl    sys_trace_idle
 	pop_s blink
 #endif
 
@@ -56,9 +56,9 @@ SECTION_FUNC(TEXT, k_cpu_idle)
  */
 SECTION_FUNC(TEXT, k_cpu_atomic_idle)
 
-#ifdef CONFIG_KERNEL_EVENT_LOGGER_SLEEP
+#ifdef CONFIG_TRACING
 	push_s blink
-	jl    _sys_k_event_logger_enter_sleep
+	jl    sys_trace_idle
 	pop_s blink
 #endif
 

arch/arc/core/isr_wrapper.S

@@ -332,29 +332,14 @@ rirq_path:
 	j_s [r2]
 #endif
 
-#ifdef CONFIG_KERNEL_EVENT_LOGGER_SLEEP
-GTEXT(_sys_k_event_logger_exit_sleep)
-
-.macro log_sleep_k_event
-	clri r0 /* do not interrupt event logger operations */
-	push_s r0
-	push_s blink
-	jl _sys_k_event_logger_exit_sleep
-	pop_s blink
-	pop_s r0
-	seti r0
-.endm
-#else
-	#define log_sleep_k_event
-#endif
-#if defined(CONFIG_KERNEL_EVENT_LOGGER_INTERRUPT)
-GTEXT(_sys_k_event_logger_interrupt)
+#if defined(CONFIG_TRACING)
+GTEXT(sys_trace_isr_enter)
 
 .macro log_interrupt_k_event
 	clri r0 /* do not interrupt event logger operations */
 	push_s r0
 	push_s blink
-	jl _sys_k_event_logger_interrupt
+	jl sys_trace_isr_enter
 	pop_s blink
 	pop_s r0
 	seti r0
@@ -395,7 +380,6 @@ SECTION_FUNC(TEXT, _isr_demux)
 	/* r0 is available to be stomped here, and exit_tickless_idle uses it */
 	exit_tickless_idle
 	log_interrupt_k_event
-	log_sleep_k_event
 
 	lr r0, [_ARC_V2_ICAUSE]
 	/* handle software triggered interrupt */

arch/arc/include/kernel_event_logger_arch.h renamed to arch/arc/include/tracing_arch.h

@@ -9,8 +9,8 @@
  * @brief Kernel event logger support for ARM
  */
 
-#ifndef __KERNEL_EVENT_LOGGER_ARCH_H__
-#define __KERNEL_EVENT_LOGGER_ARCH_H__
+#ifndef __KERNEL_TRACING_H__
+#define __KERNEL_TRACING_H__
 
 #ifdef __cplusplus
 extern "C" {
@@ -33,4 +33,4 @@ int _sys_current_irq_key_get(void)
 }
 #endif
 
-#endif /* __KERNEL_EVENT_LOGGER_ARCH_H__ */
+#endif /* __KERNEL_TRACING_H__ */

arch/arm/core/swap_helper.S

@@ -53,7 +53,7 @@ SECTION_FUNC(TEXT, __pendsv)
 #else
     pop {lr}
 #endif /* CONFIG_ARMV6_M_ARMV8_M_BASELINE */
-#endif /* CONFIG_KERNEL_EVENT_LOGGER_CONTEXT_SWITCH  */
+#endif /* CONFIG_TRACING */
 
     /* protect the kernel state while we play with the thread lists */
 #if defined(CONFIG_ARMV6_M_ARMV8_M_BASELINE)

arch/arm/include/kernel_event_logger_arch.h renamed to arch/arm/include/tracing_arch.h

@@ -9,8 +9,8 @@
  * @brief Kernel event logger support for ARM
  */
 
-#ifndef __KERNEL_EVENT_LOGGER_ARCH_H__
-#define __KERNEL_EVENT_LOGGER_ARCH_H__
+#ifndef __KERNEL_TRACING_H__
+#define __KERNEL_TRACING_H__
 
 #ifdef __cplusplus
 extern "C" {
@@ -34,4 +34,4 @@ int _sys_current_irq_key_get(void)
 }
 #endif
 
-#endif /* __KERNEL_EVENT_LOGGER_ARCH_H__ */
+#endif /* __KERNEL_TRACING_H__ */

arch/nios2/core/irq_manage.c

@@ -17,9 +17,9 @@
 #include <irq.h>
 #include <misc/printk.h>
 #include <sw_isr_table.h>
-#include <logging/kernel_event_logger.h>
 #include <ksched.h>
 #include <kswap.h>
+#include <tracing.h>
 
 void _irq_spurious(void *unused)
 {
@@ -86,9 +86,7 @@ void _enter_irq(u32_t ipending)
 	while (ipending) {
 		struct _isr_table_entry *ite;
 
-#ifdef CONFIG_KERNEL_EVENT_LOGGER_INTERRUPT
-		_sys_k_event_logger_interrupt();
-#endif
+		sys_trace_isr_enter();
 
 		index = find_lsb_set(ipending) - 1;
 		ipending &= ~(1 << index);
@@ -100,6 +98,7 @@ void _enter_irq(u32_t ipending)
 		read_timer_end_of_isr();
 #endif
 		ite->isr(ite->arg);
+		sys_trace_isr_exit();
 	}
 
 	_kernel.nested--;

arch/nios2/core/swap.S

@@ -13,7 +13,7 @@ GTEXT(__swap)
 GTEXT(_thread_entry_wrapper)
 
 /* imports */
-GTEXT(_sys_k_event_logger_context_switch)
+GTEXT(sys_trace_thread_switched_in)
 GTEXT(_k_neg_eagain)
 
 /* unsigned int __swap(unsigned int key)
@@ -84,8 +84,8 @@ SECTION_FUNC(exception.other, __swap)
 	ldw   r4, (r5)
 	stw   r4, _thread_offset_to_retval(r11)
 
-#if CONFIG_KERNEL_EVENT_LOGGER_CONTEXT_SWITCH
-	call _sys_k_event_logger_context_switch
+#if CONFIG_TRACING
+	call sys_trace_thread_switched_in
 	/* restore caller-saved r10 */
 	movhi r10, %hi(_kernel)
 	ori   r10, r10, %lo(_kernel)

arch/nios2/include/kernel_event_logger_arch.h renamed to arch/nios2/include/tracing_arch.h

@@ -9,8 +9,8 @@
  * @brief Kernel event logger support for Nios II
  */
 
-#ifndef __KERNEL_EVENT_LOGGER_ARCH_H__
-#define __KERNEL_EVENT_LOGGER_ARCH_H__
+#ifndef __KERNEL_TRACING_H__
+#define __KERNEL_TRACING_H__
 
 #include <arch/cpu.h>
 
@@ -38,4 +38,4 @@ static inline int _sys_current_irq_key_get(void)
 }
 #endif
 
-#endif /* __KERNEL_EVENT_LOGGER_ARCH_H__ */
+#endif /* __KERNEL_TRACING_H__ */

arch/posix/core/cpuhalt.c

@@ -19,7 +19,7 @@
 
 #include "posix_core.h"
 #include "posix_soc_if.h"
-#include "logging/kernel_event_logger.h"
+#include <tracing.h>
 
 /**
  *
@@ -35,7 +35,7 @@
  */
 void k_cpu_idle(void)
 {
-	_sys_k_event_logger_enter_sleep();
+	sys_trace_idle();
 	posix_irq_full_unlock();
 	posix_halt_cpu();
 }
@@ -62,6 +62,6 @@ void k_cpu_idle(void)
 
 void k_cpu_atomic_idle(unsigned int imask)
 {
-	_sys_k_event_logger_enter_sleep();
+	sys_trace_idle();
 	posix_atomic_halt_cpu(imask);
 }

arch/posix/core/swap.c

@@ -50,9 +50,7 @@ unsigned int __swap(unsigned int key)
 	_kernel.current->callee_saved.retval = -EAGAIN;
 	/* retval may be modified with a call to _set_thread_return_value() */
 
-#if CONFIG_KERNEL_EVENT_LOGGER_CONTEXT_SWITCH
-	_sys_k_event_logger_context_switch();
-#endif
+	sys_trace_thread_switched_in();
 
 	posix_thread_status_t *ready_thread_ptr =
 		(posix_thread_status_t *)