Zephyr API Documentation  3.6.99
A Scalable Open Source RTOS
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xcc.h
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1/*
2 * Copyright (c) 2017 Intel Corporation
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7#ifndef ZEPHYR_INCLUDE_TOOLCHAIN_XCC_H_
8#define ZEPHYR_INCLUDE_TOOLCHAIN_XCC_H_
9
10#ifndef ZEPHYR_INCLUDE_TOOLCHAIN_H_
11#error Please do not include toolchain-specific headers directly, use <zephyr/toolchain.h> instead
12#endif
13
14/* toolchain/gcc.h errors out if __BYTE_ORDER__ cannot be determined
15 * there. However, __BYTE_ORDER__ is actually being defined later in
16 * this file. So define __BYTE_ORDER__ to skip the check in gcc.h
17 * and undefine after including gcc.h.
18 *
19 * Clang has it defined so there is no need to work around.
20 */
21#ifndef __clang__
22#define __BYTE_ORDER__
23#endif
24
25#ifdef __clang__
27#else
29#endif
30
31#ifndef __clang__
32#undef __BYTE_ORDER__
33#endif
34
35#include <stdbool.h>
36
37#ifndef __INT8_C
38#define __INT8_C(x) x
39#endif
40
41#ifndef INT8_C
42#define INT8_C(x) __INT8_C(x)
43#endif
44
45#ifndef __UINT8_C
46#define __UINT8_C(x) x ## U
47#endif
48
49#ifndef UINT8_C
50#define UINT8_C(x) __UINT8_C(x)
51#endif
52
53#ifndef __INT16_C
54#define __INT16_C(x) x
55#endif
56
57#ifndef INT16_C
58#define INT16_C(x) __INT16_C(x)
59#endif
60
61#ifndef __UINT16_C
62#define __UINT16_C(x) x ## U
63#endif
64
65#ifndef UINT16_C
66#define UINT16_C(x) __UINT16_C(x)
67#endif
68
69#ifndef __INT32_C
70#define __INT32_C(x) x
71#endif
72
73#ifndef INT32_C
74#define INT32_C(x) __INT32_C(x)
75#endif
76
77#ifndef __UINT32_C
78#define __UINT32_C(x) x ## U
79#endif
80
81#ifndef UINT32_C
82#define UINT32_C(x) __UINT32_C(x)
83#endif
84
85#ifndef __INT64_C
86#define __INT64_C(x) x
87#endif
88
89#ifndef INT64_C
90#define INT64_C(x) __INT64_C(x)
91#endif
92
93#ifndef __UINT64_C
94#define __UINT64_C(x) x ## ULL
95#endif
96
97#ifndef UINT64_C
98#define UINT64_C(x) __UINT64_C(x)
99#endif
100
101#ifndef __INTMAX_C
102#define __INTMAX_C(x) x
103#endif
104
105#ifndef INTMAX_C
106#define INTMAX_C(x) __INTMAX_C(x)
107#endif
108
109#ifndef __UINTMAX_C
110#define __UINTMAX_C(x) x ## ULL
111#endif
112
113#ifndef UINTMAX_C
114#define UINTMAX_C(x) __UINTMAX_C(x)
115#endif
116
117#ifndef __COUNTER__
118/* XCC (GCC-based compiler) doesn't support __COUNTER__
119 * but this should be good enough
120 */
121#define __COUNTER__ __LINE__
122#endif
123
124#undef __in_section_unique
125#define __in_section_unique(seg) \
126 __attribute__((section("." STRINGIFY(seg) "." STRINGIFY(__COUNTER__))))
127
128#undef __in_section_unique_named
129#define __in_section_unique_named(seg, name) \
130 __attribute__((section("." STRINGIFY(seg) \
131 "." STRINGIFY(__COUNTER__) \
132 "." STRINGIFY(name))))
133
134#ifndef __GCC_LINKER_CMD__
135#include <xtensa/config/core.h>
136
137/*
138 * XCC does not define the following macros with the expected names, but the
139 * HAL defines similar ones. Thus we include it and define the missing macros
140 * ourselves.
141 */
142#if XCHAL_MEMORY_ORDER == XTHAL_BIGENDIAN
143#define __BYTE_ORDER__ __ORDER_BIG_ENDIAN__
144#elif XCHAL_MEMORY_ORDER == XTHAL_LITTLEENDIAN
145#define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__
146#else
147#error "Cannot determine __BYTE_ORDER__"
148#endif
149
150#endif /* __GCC_LINKER_CMD__ */
151
152#define __builtin_unreachable() __builtin_trap()
153
154/* Not a full barrier, just a SW barrier */
155#define __sync_synchronize() do { __asm__ __volatile__ ("" ::: "memory"); } \
156 while (false)
157
158#ifdef __deprecated
159/*
160 * XCC does not support using deprecated attribute in enum,
161 * so just nullify it here to avoid compilation errors.
162 */
163#undef __deprecated
164#define __deprecated
165#endif
166
167#endif
GCC toolchain abstraction.