structs.h

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/*
 * Copyright (c) 2023 Arm Limited (or its affiliates). All rights reserved.
 * SPDX-License-Identifier: Apache-2.0
 */
 
#ifndef ZEPHYR_INCLUDE_ARCH_ARM_STRUCTS_H_
#define ZEPHYR_INCLUDE_ARCH_ARM_STRUCTS_H_
 
#include <zephyr/types.h>
 
#if defined(CONFIG_CPU_AARCH32_CORTEX_A) || defined(CONFIG_CPU_AARCH32_CORTEX_R)
/* Per CPU architecture specifics */
struct _cpu_arch {
        int8_t exc_depth;
#if defined(CONFIG_ARM_TRACK_ACTIVE_IRQ)
        /*
         * INTID currently being serviced on this CPU, biased by one so
         * that the zero-initialized boot state reads as "none". Maintained
         * by the ISR wrapper; read through arch_irq_get_active().
         */
        uint32_t active_irq;
#endif
};
 
#else
 
/* Default definitions when no architecture specific definitions exist. */
 
/* Per CPU architecture specifics (empty) */
struct _cpu_arch {
#ifdef __cplusplus
        /* This struct will have a size 0 in C which is not allowed in C++ (it'll have a size 1). To
         * prevent this, we add a 1 byte dummy variable.
         */
        uint8_t dummy;
#endif
};
 
#endif
 
#endif /* ZEPHYR_INCLUDE_ARCH_ARM_STRUCTS_H_ */