kernel: remove all remaining references to nanokernel

Change-Id: I43067508898bc092879f7fe9d656ccca6fd92ab2
Signed-off-by: Anas Nashif <anas.nashif@intel.com>

arch/arm/soc/st_stm32/stm32f3/soc.c

@@ -9,7 +9,7 @@
  * @brief System/hardware module for STM32F3 processor
  */
 
-#include <nanokernel.h>
+#include <kernel.h>
 #include <device.h>
 #include <init.h>
 #include <soc.h>

arch/riscv32/core/cpu_idle.c

@@ -9,11 +9,11 @@
 /*
  * In RISC-V there is no conventional way to handle CPU power save.
  * Each RISC-V SOC handles it in its own way.
- * Hence, by default, nano_cpu_idle and nano_cpu_atomic_idle functions just
+ * Hence, by default, k_cpu_idle and k_cpu_atomic_idle functions just
  * unlock interrupts and return to the caller, without issuing any CPU power
  * saving instruction.
  *
- * Nonetheless, define the default nano_cpu_idle and nano_cpu_atomic_idle
+ * Nonetheless, define the default k_cpu_idle and k_cpu_atomic_idle
  * functions as weak functions, so that they can be replaced at the SOC-level.
  */
 
@@ -36,10 +36,6 @@ void __weak k_cpu_idle(void)
  *
  * @brief Atomically re-enable interrupts and enter low power mode
  *
- * This function is utilized by the nanokernel object "wait" APIs for tasks,
- * e.g. nano_task_lifo_get(), nano_task_sem_take(),
- * nano_task_stack_pop(), and nano_task_fifo_get().
- *
  * INTERNAL
  * The requirements for k_cpu_atomic_idle() are as follows:
  * 1) The enablement of interrupts and entering a low-power mode needs to be

arch/riscv32/core/fatal.c

@@ -4,8 +4,7 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
-#include <nanokernel.h>
-#include <arch/cpu.h>
+#include <kernel.h>
 #include <kernel_structs.h>
 #include <inttypes.h>
 
@@ -50,7 +49,7 @@ const NANO_ESF _default_esf = {
 
 /**
  *
- * @brief Nanokernel fatal error handler
+ * @brief Fatal error handler
  *
  * This routine is called when a fatal error condition is detected by either
  * hardware or software.

arch/riscv32/include/kernel_arch_func.h

@@ -22,8 +22,8 @@ extern "C" {
 #endif
 
 #ifndef _ASMLANGUAGE
-void nano_cpu_idle(void);
-void nano_cpu_atomic_idle(unsigned int key);
+void k_cpu_idle(void);
+void k_cpu_atomic_idle(unsigned int key);
 
 static ALWAYS_INLINE void nanoArchInit(void)
 {

arch/xtensa/core/Makefile

@@ -2,7 +2,7 @@ ccflags-y += -I$(srctree)/kernel/unified/include
 asflags-y += -I$(srctree)/kernel/unified/include --longcalls
 
 ifdef CONFIG_ATOMIC_OPERATIONS_C
-# Use C routines from kernel/nanokernel/atomic.c
+# Use C routines from kernel/atomic_c.c
 obj-atomic=
 else
 # Use our own routines implmented in assembly

arch/xtensa/core/cpu_idle.c

@@ -26,7 +26,7 @@ void k_cpu_idle(void)
  *
  * This function exits with interrupts restored to <key>.
  *
- * void nano_cpu_atomic_idle(unsigned int key)
+ * void k_cpu_atomic_idle(unsigned int key)
  */
 void k_cpu_atomic_idle(unsigned int key)
 {

arch/xtensa/core/fatal.c

@@ -28,7 +28,7 @@ const NANO_ESF _default_esf = {
 
 /**
  *
- * @brief Nanokernel fatal error handler
+ * @brief Fatal error handler
  *
  * This routine is called when fatal error conditions are detected by software
  * and is responsible only for reporting the error. Once reported, it then

arch/xtensa/core/irq_offload.c

@@ -3,7 +3,7 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
-#include <nanokernel.h>
+#include <kernel.h>
 #include <irq_offload.h>
 #include <arch/xtensa/arch.h>
 #include <xtensa_api.h>

arch/xtensa/core/offsets/offsets.c

@@ -9,11 +9,11 @@
  * @brief Xtensa kernel structure member offset definition file
  *
  * This module is responsible for the generation of the absolute symbols whose
- * value represents the member offsets for various Xtensa nanokernel
+ * value represents the member offsets for various Xtensa kernel
  * structures.
  *
  * All of the absolute symbols defined by this module will be present in the
- * final kernel or nanokernel ELF image (due to the linker's reference to
+ * final kernel or kernel ELF image (due to the linker's reference to
  * the _OffsetAbsSyms symbol).
  *
  * INTERNAL

arch/xtensa/core/xtensa_vectors.S

@@ -198,7 +198,7 @@
     #endif
 
 #ifdef CONFIG_SYS_POWER_MANAGEMENT
-#if defined(CONFIG_NANOKERNEL) && defined(CONFIG_TICKLESS_IDLE)
+#if defined(CONFIG_TICKLESS_IDLE)
     call0   _power_save_idle_exit
 #else
     movi    a3, _kernel
@@ -218,7 +218,7 @@
     call4   _sys_power_save_idle_exit
 #endif /* __XTENSA_CALL0_ABI__ */
 10:
-#endif /* defined(CONFIG_NANOKERNEL) && defined(CONFIG_TICKLESS_IDLE) */
+#endif /* defined(CONFIG_TICKLESS_IDLE) */
 #endif /* CONFIG_SYS_POWER_MANAGEMENT */
 
     /* Now look up in the dispatch table and call user ISR if any. */

arch/xtensa/include/kernel_arch_func.h

@@ -31,7 +31,7 @@ extern void _xt_coproc_init(void);
  * @brief Performs architecture-specific initialization
  *
  * This routine performs architecture-specific initialization of the
- * nanokernel.  Trivial stuff is done inline; more complex initialization is
+ * kernel.  Trivial stuff is done inline; more complex initialization is
  * done via function calls.
  *
  * @return N/A
@@ -66,7 +66,7 @@ _set_thread_return_value(struct k_thread *thread, unsigned int value)
 	thread->callee_saved.retval = value;
 }
 
-extern void nano_cpu_atomic_idle(unsigned int imask);
+extern void k_cpu_atomic_idle(unsigned int imask);
 
 /*
  * Required by the core kernel even though we don't have to do anything on this

drivers/pinmux/stm32/pinmux_board_stm3210c_eval.c

@@ -4,7 +4,7 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
-#include <nanokernel.h>
+#include <kernel.h>
 #include <device.h>
 #include <init.h>
 #include <pinmux.h>

drivers/pinmux/stm32/pinmux_board_stm32373c_eval.c

@@ -4,7 +4,7 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
-#include <nanokernel.h>
+#include <kernel.h>
 #include <device.h>
 #include <init.h>
 #include <pinmux.h>

drivers/timer/xtensa_sys_timer.c

@@ -3,8 +3,8 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
+#include <kernel.h>
 #include <stdint.h>
-#include <nanokernel.h>
 #include <system_timer.h>
 #include <xtensa_rtos.h>
 

include/arch/x86/arch.h

@@ -260,7 +260,7 @@ extern void _arch_isr_direct_footer(int maybe_swap);
 	static inline int name##_body(void)
 
 /**
- * @brief Nanokernel Exception Stack Frame
+ * @brief Exception Stack Frame
  *
  * A pointer to an "exception stack frame" (ESF) is passed as an argument
  * to exception handlers registered via nanoCpuExcConnect().  As the system
@@ -288,7 +288,7 @@ typedef struct nanoEsf {
 } NANO_ESF;
 
 /**
- * @brief Nanokernel "interrupt stack frame" (ISF)
+ * @brief "interrupt stack frame" (ISF)
  *
  * An "interrupt stack frame" (ISF) as constructed by the processor and the
  * interrupt wrapper function _interrupt_enter().  As the system always
@@ -491,7 +491,7 @@ extern void	k_cpu_idle(void);
 extern uint32_t _timer_cycle_get_32(void);
 #define _arch_k_cycle_get_32()	_timer_cycle_get_32()
 
-/** Nanokernel provided routine to report any detected fatal error. */
+/** kernel provided routine to report any detected fatal error. */
 extern FUNC_NORETURN void _NanoFatalErrorHandler(unsigned int reason,
 						 const NANO_ESF * pEsf);
 /** User provided routine to handle any detected fatal error post reporting. */

include/arch/xtensa/exc.h

@@ -8,7 +8,7 @@
  * @file
  * @brief Xtensa public exception handling
  *
- * Xtensa-specific nanokernel exception handling interface. Included by
+ * Xtensa-specific kernel exception handling interface. Included by
  * arch/xtensa/arch.h.
  */
 
@@ -22,7 +22,7 @@ extern "C" {
 #ifdef _ASMLANGUAGE
 #else
 /**
- * @brief Nanokernel Exception Stack Frame
+ * @brief Exception Stack Frame
  *
  * A pointer to an "exception stack frame" (ESF) is passed as an argument
  * to exception handlers registered via nanoCpuExcConnect().

tests/benchmarks/object_footprint/README.txt

@@ -1,4 +1,4 @@
-Title: Nanokernel Object Footprint Measurement
+Title: Object Footprint Measurement
 
 Description:
 This sample builds multiple kernels with different configurations

tests/drivers/build_all/src/main.c

@@ -11,7 +11,6 @@
 /*
  * @file
  * @brief Hello World demo
- * Nanokernel version of hello world demo
  */
 
 

tests/drivers/enc28j60/src/main.c

@@ -11,7 +11,6 @@
 /*
  * @file
  * @brief Hello World demo
- * Nanokernel version of hello world demo
  */
 
 

tests/drivers/nsim_uart/src/main.c

@@ -11,7 +11,6 @@
 /*
  * @file
  * @brief Hello World demo
- * Nanokernel version of hello world demo
  */
 
 

tests/drivers/quark_clock/src/main.c

@@ -11,7 +11,6 @@
 /*
  * @file
  * @brief Hello World demo
- * Nanokernel version of hello world demo
  */
 
 

tests/kernel/fp_sharing/src/main.c

@@ -270,7 +270,7 @@ void load_store_high(void)
 		 *
 		 * The initial byte value, and thus the contents of the entire
 		 * float_reg_set structure, must be different for each
-		 * thread to effectively test the nanokernel's ability to
+		 * thread to effectively test the kernel's ability to
 		 * properly save/restore the floating point values during a
 		 * context switch.
 		 */
@@ -289,10 +289,10 @@ void load_store_high(void)
 		 * The goal of the loading all floating point registers with
 		 * values that differ from the values used in other threads is
 		 * to help determine whether the floating point register
-		 * save/restore mechanism in the nanokernel's context switcher
+		 * save/restore mechanism in the kernel's context switcher
 		 * is operating correctly.
 		 *
-		 * When a subsequent nano_fiber_timer_test() invocation is
+		 * When a subsequent k_timer_test() invocation is
 		 * performed, a (cooperative) context switch back to the
 		 * preempted task will occur. This context switch should result
 		 * in restoring the state of the task's floating point
@@ -307,9 +307,9 @@ void load_store_high(void)
 		 * system clock tick, so that lower priority threads get a
 		 * chance to run.
 		 *
-		 * This exercises the ability of the nanokernel to restore the
+		 * This exercises the ability of the kernel to restore the
 		 * FPU state of a low priority thread _and_ the ability of the
-		 * nanokernel to provide a "clean" FPU state to this thread
+		 * kernel to provide a "clean" FPU state to this thread
 		 * once the sleep ends.
 		 */
 

tests/kernel/fp_sharing/src/pi.c

@@ -128,9 +128,9 @@ void calculate_pi_high(void)
 		 * system clock tick, so that lower priority threads get a
 		 * chance to run.
 		 *
-		 * This exercises the ability of the nanokernel to restore the
+		 * This exercises the ability of the kernel to restore the
 		 * FPU state of a low priority thread _and_ the ability of the
-		 * nanokernel to provide a "clean" FPU state to this thread
+		 * kernel to provide a "clean" FPU state to this thread
 		 * once the sleep ends.
 		 */
 

tests/kernel/mem_safe/README.txt

@@ -9,10 +9,10 @@ intended.
 
 Building and Running Project:
 
-This nanokernel project outputs to the console.  It can be built and executed
+This project outputs to the console.  It can be built and executed
 on QEMU as follows:
 
-    make qemu
+    make run
 
 ---------------------------------------------------------------------------
 

tests/kernel/obj_tracing/src/main.c

@@ -18,12 +18,6 @@ char __stack phil_stack[N_PHILOSOPHERS][STSIZE];
 char __stack mon_stack[STSIZE];
 struct k_sem forks[N_PHILOSOPHERS];
 
-/**
- *
- * @brief Nanokernel entry point
- *
- */
-
 int main(void)
 {
 	int i;

tests/kernel/workq/work_queue/README.txt

@@ -8,10 +8,10 @@ A simple application verifying the workqueue API
 
 Building and Running Project:
 
-This nanokernel project outputs to the console.  It can be built and executed
+This kernel project outputs to the console.  It can be built and executed
 on QEMU as follows:
 
-    make qemu
+    make run
 
 --------------------------------------------------------------------------------
 

tests/kernel/workq/work_queue/src/main.c

@@ -7,7 +7,6 @@
 #include <stdbool.h>
 
 #include <zephyr.h>
-#include <nanokernel.h>
 #include <tc_util.h>
 #include <misc/util.h>
 #include <misc/nano_work.h>