1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
|
//
// Copyright (c) 2008-2013 Travis Geiselbrecht
//
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file or at
// https://opensource.org/licenses/MIT
//
// Copyright 2016 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#pragma once
#define __CONCAT1(x, y) x ## y
#define __CONCAT(x, y) __CONCAT1(x, y)
#ifndef __ASSEMBLY__
#if __GNUC__ || __clang__
#define likely(x) __builtin_expect(!!(x), 1)
#define unlikely(x) __builtin_expect(!!(x), 0)
#define __UNUSED __attribute__((__unused__))
#define __USED __attribute__((__used__))
#define __PACKED __attribute__((packed))
#define __ALIGNED(x) __attribute__((aligned(x)))
#define __PRINTFLIKE(__fmt,__varargs) __attribute__((__format__ (__printf__, __fmt, __varargs)))
#define __SCANFLIKE(__fmt,__varargs) __attribute__((__format__ (__scanf__, __fmt, __varargs)))
#define __SECTION(x) __USED __attribute((section(x)))
#define __PURE __attribute((pure))
#define __CONST __attribute((const))
#define __NO_RETURN __attribute__((noreturn))
#define __MALLOC __attribute__((malloc))
#define __WEAK __attribute__((weak))
#define __GNU_INLINE __attribute__((gnu_inline))
#define __GET_CALLER(x) __builtin_return_address(0)
#define __GET_FRAME(x) __builtin_frame_address(0)
#define __NAKED __attribute__((naked))
#define __ISCONSTANT(x) __builtin_constant_p(x)
#define __NO_INLINE __attribute((noinline))
#define __SRAM __NO_INLINE __SECTION(".sram.text")
#define __CONSTRUCTOR __attribute__((constructor))
#define __DESTRUCTOR __attribute__((destructor))
#define __RESTRICT __restrict
#define INCBIN(symname, sizename, filename, section) \
__asm__ (".section " section "; .balign 4; .globl "#symname); \
__asm__ (""#symname ":\n.incbin \"" filename "\""); \
__asm__ (".balign 1; "#symname "_end:"); \
__asm__ (".balign 4; .globl "#sizename); \
__asm__ (""#sizename ": .long "#symname "_end - "#symname); \
__asm__ (".previous"); \
extern unsigned char symname[]; \
extern unsigned int sizename
#define INCFILE(symname, sizename, filename) INCBIN(symname, sizename, filename, ".rodata")
/* look for gcc 3.0 and above */
#if (__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__ >= 0)
#define __ALWAYS_INLINE __attribute__((always_inline))
#else
#define __ALWAYS_INLINE
#endif
/* look for gcc 3.1 and above */
#if !defined(__DEPRECATED) // seems to be built in in some versions of the compiler
#if (__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1)
#define __DEPRECATED __attribute((deprecated))
#else
#define __DEPRECATED
#endif
#endif
/* look for gcc 3.3 and above */
#if (__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__ >= 3)
/* the may_alias attribute was introduced in gcc 3.3; before that, there
* was no way to specify aliasiang rules on a type-by-type basis */
#define __MAY_ALIAS __attribute__((may_alias))
/* nonnull was added in gcc 3.3 as well */
#define __NONNULL(x) __attribute((nonnull x))
#else
#define __MAY_ALIAS
#define __NONNULL(x)
#endif
/* look for gcc 3.4 and above */
#if (__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4)
#define __WARN_UNUSED_RESULT __attribute((warn_unused_result))
#else
#define __WARN_UNUSED_RESULT
#endif
#if defined(__clang__)
/* Clang does not support externally_visible, used should be similar. */
#define __EXTERNALLY_VISIBLE __attribute__((used))
#elif (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 1)
#define __EXTERNALLY_VISIBLE __attribute__((externally_visible))
#else
#define __EXTERNALLY_VISIBLE
#endif
#if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5) || defined(__clang__)
#define __UNREACHABLE __builtin_unreachable()
#else
#define __UNREACHABLE
#endif
#if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6) || defined(__clang__)
#ifdef __cplusplus
#define STATIC_ASSERT(e) static_assert(e, #e)
#else
#define STATIC_ASSERT(e) _Static_assert(e, #e)
#endif
#else
#define STATIC_ASSERT(e) extern char (*ct_assert(void)) [sizeof(char[1 - 2*!(e)])]
#endif
/* compiler fence */
#define CF do { __asm__ volatile("" ::: "memory"); } while(0)
#define __WEAK_ALIAS(x) __attribute__((weak, alias(x)))
#define __ALIAS(x) __attribute__((alias(x)))
#define __EXPORT __attribute__ ((visibility("default")))
#define __LOCAL __attribute__ ((visibility("hidden")))
#define __THREAD __thread
#define __offsetof(type, field) __builtin_offsetof(type, field)
#if defined(__cplusplus) && __cplusplus >= 201703L
#define __FALLTHROUGH [[fallthrough]]
#elif defined(__cplusplus) && defined(__clang__)
#define __FALLTHROUGH [[clang::fallthrough]]
#elif __GNUC__ >= 7
#define __FALLTHROUGH __attribute__((__fallthrough__))
#else
#define __FALLTHROUGH do {} while (0)
#endif
#ifndef __clang__
#define __LEAF_FN __attribute__((__leaf__))
#define __OPTIMIZE(x) __attribute__((optimize(x)))
#define __THREAD_ANNOTATION(x)
#define __has_feature(x) 0
#else
#define __LEAF_FN
#define __OPTIMIZE(x)
#define __THREAD_ANNOTATION(x) __attribute__((x))
#endif
// Publicly exposed thread annotation macros. These have a long and ugly name to
// minimize the chance of collision with consumers of Zircon's public headers.
#define __TA_CAPABILITY(x) __THREAD_ANNOTATION(__capability__(x))
#define __TA_GUARDED(x) __THREAD_ANNOTATION(__guarded_by__(x))
#define __TA_ACQUIRE(...) __THREAD_ANNOTATION(__acquire_capability__(__VA_ARGS__))
#define __TA_TRY_ACQUIRE(...) __THREAD_ANNOTATION(__try_acquire_capability__(__VA_ARGS__))
#define __TA_ACQUIRED_BEFORE(...) __THREAD_ANNOTATION(__acquired_before__(__VA_ARGS__))
#define __TA_ACQUIRED_AFTER(...) __THREAD_ANNOTATION(__acquired_after__(__VA_ARGS__))
#define __TA_RELEASE(...) __THREAD_ANNOTATION(__release_capability__(__VA_ARGS__))
#define __TA_REQUIRES(...) __THREAD_ANNOTATION(__requires_capability__(__VA_ARGS__))
#define __TA_EXCLUDES(...) __THREAD_ANNOTATION(__locks_excluded__(__VA_ARGS__))
#define __TA_RETURN_CAPABILITY(x) __THREAD_ANNOTATION(__lock_returned__(x))
#define __TA_SCOPED_CAPABILITY __THREAD_ANNOTATION(__scoped_lockable__)
#define __TA_NO_THREAD_SAFETY_ANALYSIS __THREAD_ANNOTATION(__no_thread_safety_analysis__)
#else
#define likely(x) (x)
#define unlikely(x) (x)
#define __UNUSED
#define __PACKED
#define __ALIGNED(x)
#define __PRINTFLIKE(__fmt,__varargs)
#define __SCANFLIKE(__fmt,__varargs)
#define __SECTION(x)
#define __PURE
#define __CONST
#define __NONNULL(x)
#define __DEPRECATED
#define __WARN_UNUSED_RESULT
#define __ALWAYS_INLINE
#define __MAY_ALIAS
#define __NO_RETURN
#endif
#endif
/* TODO: add type check */
#if !defined(countof)
#define countof(a) (sizeof(a) / sizeof((a)[0]))
#endif
/* CPP header guards */
#ifdef __cplusplus
#define __BEGIN_CDECLS extern "C" {
#define __END_CDECLS }
#else
#define __BEGIN_CDECLS
#define __END_CDECLS
#endif
|
