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https://github.com/zephyrproject-rtos/zephyr
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2b39dde39c
The microkernel server's stack area can be defined by the kernel library itself, without relying on sysgen to do it. Change-Id: I9359946ce9ca9138970db4e264fd25d8b92034c6 Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
100 lines
3.0 KiB
C
100 lines
3.0 KiB
C
/* global.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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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1) Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2) Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3) Neither the name of Wind River Systems nor the names of its contributors
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* may be used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "minik.h"
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#include "nanokernel.h"
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#include "nanok.h"
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#include "kticks.h" /* WL and timeslice stuff */
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#include <toolchain.h>
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#include <sections.h>
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#ifdef CONFIG_BOOT_TIME_MEASUREMENT
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#include <nanokernel/cpu.h>
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#endif
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extern void init_node(void); /* generated by SYSGEN */
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char __noinit _k_server_stack[CONFIG_MICROKERNEL_SERVER_STACK_SIZE];
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struct nano_stack __noinit _k_command_stack;
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#ifdef CONFIG_TASK_DEBUG
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int _k_debug_halt = 0;
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#endif
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#if CONFIG_COMMAND_STACK_SIZE <= 0
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#error COMMAND_STACK_SIZE must be greater than zero
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#endif
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uint32_t __noinit _k_server_command_stack_storage[CONFIG_COMMAND_STACK_SIZE];
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extern void K_swapper(int i1, int i2);
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void kernel_init(void)
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{
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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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* (an approximation, as kernel_init() is the first thing done by
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* main())
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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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* Note: most variables & data structure are globally initialized in
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* kernel_main.c
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*/
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init_node();
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#ifdef CONFIG_INIT_STACKS
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k_memset((char *)_k_server_command_stack_storage, 0xaa, sizeof(_k_server_command_stack_storage));
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#endif
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nano_stack_init(&_k_command_stack, _k_server_command_stack_storage);
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task_fiber_start(_k_server_stack,
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CONFIG_MICROKERNEL_SERVER_STACK_SIZE,
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K_swapper,
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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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init_drivers();
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#ifdef CONFIG_WORKLOAD_MONITOR
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workload_monitor_calibrate();
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#endif
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}
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