structs.h

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/*
 * Copyright (c) BayLibre SAS
 *
 * SPDX-License-Identifier: Apache-2.0
 */
 
/*
 * The purpose of this file is to provide essential/minimal architecture-
 * specific structure definitions to be included in generic kernel
 * structures.
 *
 * The following rules must be observed:
 *  1. arch/structs.h shall not depend on kernel.h both directly and
 *     indirectly (i.e. it shall not include any header files that include
 *     kernel.h in their dependency chain).
 *  2. kernel.h shall imply arch/structs.h via kernel_structs.h , such that
 *     it shall not be necessary to include arch/structs.h explicitly when
 *     kernel.h is included.
 */
 
#ifndef ZEPHYR_INCLUDE_ARCH_STRUCTS_H_
#define ZEPHYR_INCLUDE_ARCH_STRUCTS_H_
 
#if !defined(_ASMLANGUAGE)
 
#if defined(CONFIG_ARM64)
#include <zephyr/arch/arm64/structs.h>
#elif defined(CONFIG_RISCV)
#include <zephyr/arch/riscv/structs.h>
#elif defined(CONFIG_ARM)
#include <zephyr/arch/arm/structs.h>
#elif defined(CONFIG_X86) && !defined(CONFIG_X86_64)
#include <zephyr/arch/x86/ia32/structs.h>
#elif defined(CONFIG_XTENSA)
#include <zephyr/arch/xtensa/structs.h>
#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
 
/* typedefs to be used with GEN_OFFSET_SYM(), etc. */
typedef struct _cpu_arch _cpu_arch_t;
 
#endif /* _ASMLANGUAGE */
 
#endif /* ZEPHYR_INCLUDE_ARCH_STRUCTS_H_ */