4a470114fa
Consistently place C++ use of extern "C" after all include directives, within the negative branch of _ASMLANGUAGE if used. Remove extern "C" support from files that don't declare objects or functions. In arch/arc/arch.h the extern "C" in the including context is left active during an include to avoid more complex restructuring. Background from issue #17997: Declarations that use C linkage should be placed within extern "C" so the language linkage is correct when the header is included by a C++ compiler. Similarly #include directives should be outside the extern "C" to ensure the language-specific default linkage is applied to any declarations provided by the included header. See: https://en.cppreference.com/w/cpp/language/language_linkage Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
90 lines
1.9 KiB
C
90 lines
1.9 KiB
C
/*
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* Copyright (c) 2014-2016 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 Private kernel definitions
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*
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* This file contains private kernel structures definitions and various
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* other definitions for the ARCv2 processor architecture.
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*
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* This file is also included by assembly language files which must #define
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* _ASMLANGUAGE before including this header file. Note that kernel
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* assembly source files obtains structure offset values via "absolute
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* symbols" in the offsets.o module.
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*/
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#ifndef ZEPHYR_ARCH_ARC_INCLUDE_KERNEL_ARCH_FUNC_H_
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#define ZEPHYR_ARCH_ARC_INCLUDE_KERNEL_ARCH_FUNC_H_
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#if !defined(_ASMLANGUAGE)
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#ifdef CONFIG_CPU_ARCV2
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#include <v2/cache.h>
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#include <v2/irq.h>
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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static ALWAYS_INLINE _cpu_t *z_arch_curr_cpu(void)
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{
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#ifdef CONFIG_SMP
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u32_t core;
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core = z_arc_v2_core_id();
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return &_kernel.cpus[core];
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#else
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return &_kernel.cpus[0];
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#endif
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}
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static ALWAYS_INLINE void kernel_arch_init(void)
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{
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z_irq_setup();
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_current_cpu->irq_stack =
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Z_THREAD_STACK_BUFFER(_interrupt_stack) + CONFIG_ISR_STACK_SIZE;
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}
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/**
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*
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* @brief Indicates the interrupt number of the highest priority
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* active interrupt
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*
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* @return IRQ number
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*/
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static ALWAYS_INLINE int Z_INTERRUPT_CAUSE(void)
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{
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u32_t irq_num = z_arc_v2_aux_reg_read(_ARC_V2_ICAUSE);
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return irq_num;
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}
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#define z_is_in_isr z_arc_v2_irq_unit_is_in_isr
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extern void z_thread_entry_wrapper(void);
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extern void z_user_thread_entry_wrapper(void);
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extern void z_arc_userspace_enter(k_thread_entry_t user_entry, void *p1,
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void *p2, void *p3, u32_t stack, u32_t size);
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extern void z_arch_switch(void *switch_to, void **switched_from);
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extern void z_arc_fatal_error(unsigned int reason, const z_arch_esf_t *esf);
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extern void z_arch_sched_ipi(void);
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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_ARCH_ARC_INCLUDE_KERNEL_ARCH_FUNC_H_ */
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