4f99a38b06
The struct _caller_saved is not used. Most architectures put automatically the registers onto stack, in others architectures the exception code does it. Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
72 lines
1.4 KiB
C
72 lines
1.4 KiB
C
/*
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* Copyright (c) 2017 Intel Corporation
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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 Per-arch thread definition
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*
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* This file contains definitions for
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*
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* struct _thread_arch
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* struct _callee_saved
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*
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* necessary to instantiate instances of struct k_thread.
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*/
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#ifndef ZEPHYR_ARCH_ARC_INCLUDE_KERNEL_ARCH_THREAD_H_
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#define ZEPHYR_ARCH_ARC_INCLUDE_KERNEL_ARCH_THREAD_H_
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/*
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* Reason a thread has relinquished control: threads can only be in the NONE
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* or COOP state, threads can be one in the four.
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*/
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#define _CAUSE_NONE 0
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#define _CAUSE_COOP 1
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#define _CAUSE_RIRQ 2
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#define _CAUSE_FIRQ 3
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#ifndef _ASMLANGUAGE
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#include <zephyr/types.h>
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struct _callee_saved {
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u32_t sp; /* r28 */
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};
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typedef struct _callee_saved _callee_saved_t;
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struct _thread_arch {
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/* interrupt key when relinquishing control */
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u32_t intlock_key;
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/* one of the _CAUSE_xxxx definitions above */
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int relinquish_cause;
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/* return value from z_swap */
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unsigned int return_value;
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#ifdef CONFIG_ARC_STACK_CHECKING
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/* High address of stack region, stack grows downward from this
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* location. Usesd for hardware stack checking
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*/
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u32_t k_stack_base;
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u32_t k_stack_top;
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#ifdef CONFIG_USERSPACE
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u32_t u_stack_base;
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u32_t u_stack_top;
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#endif
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#endif
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#ifdef CONFIG_USERSPACE
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u32_t priv_stack_start;
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#endif
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};
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typedef struct _thread_arch _thread_arch_t;
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#endif /* _ASMLANGUAGE */
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#endif /* ZEPHYR_ARCH_ARC_INCLUDE_KERNEL_ARCH_THREAD_H_ */
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