Zephyr Project API 4.2.99
A Scalable Open Source RTOS
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structs.h
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1/*
2 * Copyright (c) BayLibre SAS
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7/*
8 * The purpose of this file is to provide essential/minimal architecture-
9 * specific structure definitions to be included in generic kernel
10 * structures.
11 *
12 * The following rules must be observed:
13 * 1. arch/structs.h shall not depend on kernel.h both directly and
14 * indirectly (i.e. it shall not include any header files that include
15 * kernel.h in their dependency chain).
16 * 2. kernel.h shall imply arch/structs.h via kernel_structs.h , such that
17 * it shall not be necessary to include arch/structs.h explicitly when
18 * kernel.h is included.
19 */
20
21#ifndef ZEPHYR_INCLUDE_ARCH_STRUCTS_H_
22#define ZEPHYR_INCLUDE_ARCH_STRUCTS_H_
23
24#if !defined(_ASMLANGUAGE)
25
26#if defined(CONFIG_ARM64)
28#elif defined(CONFIG_RISCV)
30#elif defined(CONFIG_ARM)
32#elif defined(CONFIG_X86) && !defined(CONFIG_X86_64)
34#elif defined(CONFIG_XTENSA)
36#else
37
38/* Default definitions when no architecture specific definitions exist. */
39
40/* Per CPU architecture specifics (empty) */
41struct _cpu_arch {
42#ifdef __cplusplus
43 /* This struct will have a size 0 in C which is not allowed in C++ (it'll have a size 1). To
44 * prevent this, we add a 1 byte dummy variable.
45 */
46 uint8_t dummy;
47#endif
48};
49
50#endif
51
52/* typedefs to be used with GEN_OFFSET_SYM(), etc. */
53typedef struct _cpu_arch _cpu_arch_t;
54
55#endif /* _ASMLANGUAGE */
56
57#endif /* ZEPHYR_INCLUDE_ARCH_STRUCTS_H_ */
__UINT8_TYPE__ uint8_t
Definition stdint.h:88