107 lines
2.7 KiB
C
107 lines
2.7 KiB
C
/* k_init.c */
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/*
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* Copyright (c) 1997-2010, 2012-2014 Wind River Systems, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <microkernel.h>
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#include <micro_private.h>
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#include <nano_private.h>
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#include <string.h>
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#include <toolchain.h>
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#include <sections.h>
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#include <device.h>
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#include <init.h>
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#ifdef CONFIG_BOOT_TIME_MEASUREMENT
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#include <arch/cpu.h>
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#endif
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extern void _k_init_dynamic(void); /* defined by sysgen */
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char __noinit __stack _k_server_stack[CONFIG_MICROKERNEL_SERVER_STACK_SIZE];
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#ifdef CONFIG_TASK_DEBUG
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int _k_debug_halt;
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#endif
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#ifdef CONFIG_INIT_STACKS
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static uint32_t _k_server_command_stack_storage
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[CONFIG_COMMAND_STACK_SIZE] = {
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[0 ... CONFIG_COMMAND_STACK_SIZE - 1] = 0xAAAAAAAA };
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#else
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static uint32_t __noinit _k_server_command_stack_storage
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[CONFIG_COMMAND_STACK_SIZE];
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#endif
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struct nano_stack _k_command_stack = {NULL,
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_k_server_command_stack_storage,
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_k_server_command_stack_storage};
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extern void _k_server(int unused1, int unused2);
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extern int _k_kernel_idle(void);
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/**
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*
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* @brief Mainline for microkernel's idle task
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*
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* This routine completes kernel initialization and starts any application
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* tasks in the EXE task group. From then on it takes care of doing idle
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* processing whenever there is no other work for the kernel to do.
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*
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* @return N/A
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*/
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void _main(void)
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{
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_sys_device_do_config_level(_SYS_INIT_LEVEL_NANOKERNEL);
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#ifdef CONFIG_BOOT_TIME_MEASUREMENT
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/*
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* record timestamp for microkernel's _main() function
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*/
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extern uint64_t __main_tsc;
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__main_tsc = _NanoTscRead();
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#endif
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/*
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* Most variables and data structure are statically initialized in
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* kernel_main.c: this only initializes what must be dynamically
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* initialized at runtime.
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*/
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_k_init_dynamic();
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task_fiber_start(_k_server_stack,
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CONFIG_MICROKERNEL_SERVER_STACK_SIZE,
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_k_server,
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0,
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0,
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CONFIG_MICROKERNEL_SERVER_PRIORITY,
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0);
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_sys_device_do_config_level(_SYS_INIT_LEVEL_MICROKERNEL);
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_sys_device_do_config_level(_SYS_INIT_LEVEL_APPLICATION);
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#ifdef CONFIG_WORKLOAD_MONITOR
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_k_workload_monitor_calibrate();
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#endif
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task_group_start(EXE_GROUP);
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_k_kernel_idle();
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}
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