148 lines
3.6 KiB
C
148 lines
3.6 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 ZEPHYR_KERNEL_INCLUDE_KERNEL_INTERNAL_H_
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#define ZEPHYR_KERNEL_INCLUDE_KERNEL_INTERNAL_H_
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#include <kernel.h>
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#include <kernel_arch_interface.h>
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#include <string.h>
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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 z_bss_zero(void);
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#ifdef CONFIG_XIP
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void z_data_copy(void);
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#else
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static inline void z_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 z_cstart(void);
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extern FUNC_NORETURN void z_thread_entry(k_thread_entry_t entry,
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void *p1, void *p2, void *p3);
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extern char *z_setup_new_thread(struct k_thread *new_thread,
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k_thread_stack_t *stack, size_t stack_size,
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k_thread_entry_t entry,
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void *p1, void *p2, void *p3,
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int prio, uint32_t options, const char *name);
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/**
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* @brief Allocate some memory from the current thread's resource pool
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*
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* Threads may be assigned a resource pool, which will be used to allocate
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* memory on behalf of certain kernel and driver APIs. Memory reserved
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* in this way should be freed with k_free().
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*
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* If called from an ISR, the k_malloc() system heap will be used if it exists.
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*
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* @param size Memory allocation size
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* @return A pointer to the allocated memory, or NULL if there is insufficient
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* RAM in the pool or there is no pool to draw memory from
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*/
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void *z_thread_malloc(size_t size);
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/* set and clear essential thread flag */
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extern void z_thread_essential_set(void);
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extern void z_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 z_thread_monitor_exit(struct k_thread *thread);
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#else
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#define z_thread_monitor_exit(thread) \
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do {/* nothing */ \
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} while (false)
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#endif /* CONFIG_THREAD_MONITOR */
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#ifdef CONFIG_USE_SWITCH
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/* This is a arch function traditionally, but when the switch-based
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* z_swap() is in use it's a simple inline provided by the kernel.
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*/
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static ALWAYS_INLINE void
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arch_thread_return_value_set(struct k_thread *thread, unsigned int value)
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{
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thread->swap_retval = value;
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}
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#endif
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static ALWAYS_INLINE void
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z_thread_return_value_set_with_data(struct k_thread *thread,
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unsigned int value,
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void *data)
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{
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arch_thread_return_value_set(thread, value);
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thread->base.swap_data = data;
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}
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extern void z_smp_init(void);
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extern void smp_timer_init(void);
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extern void z_early_boot_rand_get(uint8_t *buf, size_t length);
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#if CONFIG_STACK_POINTER_RANDOM
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extern int z_stack_adjust_initialized;
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#endif
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#ifdef CONFIG_BOOT_TIME_MEASUREMENT
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extern uint32_t z_timestamp_main; /* timestamp when main task starts */
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extern uint32_t z_timestamp_idle; /* timestamp when CPU goes idle */
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#endif
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extern struct k_thread z_main_thread;
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#ifdef CONFIG_MULTITHREADING
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extern struct k_thread z_idle_threads[CONFIG_MP_NUM_CPUS];
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#endif
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extern K_KERNEL_STACK_ARRAY_DEFINE(z_interrupt_stacks, CONFIG_MP_NUM_CPUS,
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CONFIG_ISR_STACK_SIZE);
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#ifdef CONFIG_GEN_PRIV_STACKS
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extern uint8_t *z_priv_stack_find(k_thread_stack_t *stack);
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#endif
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#ifdef CONFIG_USERSPACE
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bool z_stack_is_user_capable(k_thread_stack_t *stack);
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#endif /* CONFIG_USERSPACE */
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#ifdef CONFIG_GDBSTUB
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struct gdb_ctx;
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/* Should be called by the arch layer. This is the gdbstub main loop
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* and synchronously communicate with gdb on host.
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*/
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extern int z_gdb_main_loop(struct gdb_ctx *ctx, bool start);
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#endif
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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 /* ZEPHYR_KERNEL_INCLUDE_KERNEL_INTERNAL_H_ */
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