ae1a75b82e
One of the stack sentinel policies was to check the sentinel any time a cooperative context switch is done (i.e, _Swap is called). This was done by adding a hook to _check_stack_sentinel in every arch's __swap function. This way is cleaner as we just have the hook in one inline function rather than implemented in several different assembly dialects. The check upon interrupt is now made unconditionally rather than checking if we are calling __swap, since the check now is only called on cooperative _Swap(). The interrupt is always serviced first. Issue: ZEP-2244 Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
98 lines
2.0 KiB
C
98 lines
2.0 KiB
C
/*
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* Copyright (c) 2010-2012, 2014-2015 Wind River Systems, Inc.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/**
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* @file
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* @brief Architecture-independent private kernel APIs
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*
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* This file contains private kernel APIs that are not architecture-specific.
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*/
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#ifndef _NANO_INTERNAL__H_
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#define _NANO_INTERNAL__H_
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#include <kernel.h>
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#define K_NUM_PRIORITIES \
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(CONFIG_NUM_COOP_PRIORITIES + CONFIG_NUM_PREEMPT_PRIORITIES + 1)
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#define K_NUM_PRIO_BITMAPS ((K_NUM_PRIORITIES + 31) >> 5)
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#ifndef _ASMLANGUAGE
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Early boot functions */
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void _bss_zero(void);
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#ifdef CONFIG_XIP
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void _data_copy(void);
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#else
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static inline void _data_copy(void)
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{
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/* Do nothing */
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}
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#endif
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FUNC_NORETURN void _Cstart(void);
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extern FUNC_NORETURN void _thread_entry(void (*)(void *, void *, void *),
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void *, void *, void *);
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extern void _new_thread(struct k_thread *thread, char *pStack, size_t stackSize,
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void (*pEntry)(void *, void *, void *),
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void *p1, void *p2, void *p3,
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int prio, unsigned int options);
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/* context switching and scheduling-related routines */
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extern unsigned int __swap(unsigned int key);
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#ifdef CONFIG_TIMESLICING
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extern void _update_time_slice_before_swap(void);
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#endif
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#ifdef CONFIG_STACK_SENTINEL
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extern void _check_stack_sentinel(void);
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#endif
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static inline unsigned int _Swap(unsigned int key)
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{
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#ifdef CONFIG_STACK_SENTINEL
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_check_stack_sentinel();
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#endif
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#ifdef CONFIG_TIMESLICING
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_update_time_slice_before_swap();
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#endif
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return __swap(key);
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}
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/* set and clear essential fiber/task flag */
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extern void _thread_essential_set(void);
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extern void _thread_essential_clear(void);
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/* clean up when a thread is aborted */
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#if defined(CONFIG_THREAD_MONITOR)
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extern void _thread_monitor_exit(struct k_thread *thread);
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#else
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#define _thread_monitor_exit(thread) \
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do {/* nothing */ \
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} while (0)
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#endif /* CONFIG_THREAD_MONITOR */
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#ifdef __cplusplus
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}
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#endif
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#endif /* _ASMLANGUAGE */
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#endif /* _NANO_INTERNAL__H_ */
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