xref: /xnu-10002.81.5/osfmk/machine/string.h (revision 5e3eaea39dcf651e66cb99ba7d70e32cc4a99587)
1*5e3eaea3SApple OSS Distributions /*
2*5e3eaea3SApple OSS Distributions  * Copyright (c) 2022 Apple Inc. All rights reserved.
3*5e3eaea3SApple OSS Distributions  *
4*5e3eaea3SApple OSS Distributions  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5*5e3eaea3SApple OSS Distributions  *
6*5e3eaea3SApple OSS Distributions  * This file contains Original Code and/or Modifications of Original Code
7*5e3eaea3SApple OSS Distributions  * as defined in and that are subject to the Apple Public Source License
8*5e3eaea3SApple OSS Distributions  * Version 2.0 (the 'License'). You may not use this file except in
9*5e3eaea3SApple OSS Distributions  * compliance with the License. The rights granted to you under the License
10*5e3eaea3SApple OSS Distributions  * may not be used to create, or enable the creation or redistribution of,
11*5e3eaea3SApple OSS Distributions  * unlawful or unlicensed copies of an Apple operating system, or to
12*5e3eaea3SApple OSS Distributions  * circumvent, violate, or enable the circumvention or violation of, any
13*5e3eaea3SApple OSS Distributions  * terms of an Apple operating system software license agreement.
14*5e3eaea3SApple OSS Distributions  *
15*5e3eaea3SApple OSS Distributions  * Please obtain a copy of the License at
16*5e3eaea3SApple OSS Distributions  * http://www.opensource.apple.com/apsl/ and read it before using this file.
17*5e3eaea3SApple OSS Distributions  *
18*5e3eaea3SApple OSS Distributions  * The Original Code and all software distributed under the License are
19*5e3eaea3SApple OSS Distributions  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20*5e3eaea3SApple OSS Distributions  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21*5e3eaea3SApple OSS Distributions  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22*5e3eaea3SApple OSS Distributions  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23*5e3eaea3SApple OSS Distributions  * Please see the License for the specific language governing rights and
24*5e3eaea3SApple OSS Distributions  * limitations under the License.
25*5e3eaea3SApple OSS Distributions  *
26*5e3eaea3SApple OSS Distributions  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27*5e3eaea3SApple OSS Distributions  */
28*5e3eaea3SApple OSS Distributions 
29*5e3eaea3SApple OSS Distributions #ifndef _MACHINE_STRING_H_
30*5e3eaea3SApple OSS Distributions #define _MACHINE_STRING_H_
31*5e3eaea3SApple OSS Distributions 
32*5e3eaea3SApple OSS Distributions #include <sys/cdefs.h>
33*5e3eaea3SApple OSS Distributions #include <types.h>
34*5e3eaea3SApple OSS Distributions 
35*5e3eaea3SApple OSS Distributions #if defined (__i386__) || defined (__x86_64__)
36*5e3eaea3SApple OSS Distributions #include "i386/string.h"
37*5e3eaea3SApple OSS Distributions #elif defined (__arm__) || defined (__arm64__)
38*5e3eaea3SApple OSS Distributions #include "arm/string.h"
39*5e3eaea3SApple OSS Distributions #else
40*5e3eaea3SApple OSS Distributions #error architecture not supported
41*5e3eaea3SApple OSS Distributions #endif
42*5e3eaea3SApple OSS Distributions 
43*5e3eaea3SApple OSS Distributions /*
44*5e3eaea3SApple OSS Distributions  * Below are prototypes that call into a precise symbol,
45*5e3eaea3SApple OSS Distributions  * and prevent the compiler from using a builtin.
46*5e3eaea3SApple OSS Distributions  */
47*5e3eaea3SApple OSS Distributions 
48*5e3eaea3SApple OSS Distributions /*
49*5e3eaea3SApple OSS Distributions  * Memory functions
50*5e3eaea3SApple OSS Distributions  */
51*5e3eaea3SApple OSS Distributions extern int bcmp_impl(const void *, const void *, size_t) asm("_bcmp");
52*5e3eaea3SApple OSS Distributions extern int memcmp_impl(const void *, const void *, size_t) asm("_memcmp");
53*5e3eaea3SApple OSS Distributions 
54*5e3eaea3SApple OSS Distributions extern void *bzero_impl(void *, const void *, size_t) asm("_bzero");
55*5e3eaea3SApple OSS Distributions extern void *memset_impl(void *, int c, size_t) asm("_memset");
56*5e3eaea3SApple OSS Distributions 
57*5e3eaea3SApple OSS Distributions extern void *memcpy_impl(void *, const void *, size_t) asm("_memcpy");
58*5e3eaea3SApple OSS Distributions extern void *memmove_impl(void *, const void *, size_t) asm("_memmove");
59*5e3eaea3SApple OSS Distributions extern void bcopy_impl(const void *, void *, size_t) asm("_bcopy");
60*5e3eaea3SApple OSS Distributions 
61*5e3eaea3SApple OSS Distributions /*
62*5e3eaea3SApple OSS Distributions  * String functions
63*5e3eaea3SApple OSS Distributions  */
64*5e3eaea3SApple OSS Distributions extern size_t strlen_impl(const char *) asm("_strlen");
65*5e3eaea3SApple OSS Distributions extern size_t strnlen_impl(const char *s, size_t) asm("_strnlen");
66*5e3eaea3SApple OSS Distributions 
67*5e3eaea3SApple OSS Distributions extern int strcmp_impl(const char *, const char *) asm("_strcmp");
68*5e3eaea3SApple OSS Distributions extern int strncmp_impl(const char *, const char *, size_t) asm("_strncmp");
69*5e3eaea3SApple OSS Distributions extern int strcasecmp_impl(const char *, const char *) asm("_strcasecmp");
70*5e3eaea3SApple OSS Distributions extern int strncasecmp_impl(const char *, const char *, size_t) asm("_strncasecmp");
71*5e3eaea3SApple OSS Distributions 
72*5e3eaea3SApple OSS Distributions extern char *strchr_impl(const char *, int) asm("_strchr");
73*5e3eaea3SApple OSS Distributions extern char *strrchr_impl(const char *, int) asm("_strrchr");
74*5e3eaea3SApple OSS Distributions extern char *strnstr_impl(const char *s, const char *, size_t) asm("_strnstr");
75*5e3eaea3SApple OSS Distributions 
76*5e3eaea3SApple OSS Distributions extern size_t strlcat_impl(char *, const char *, size_t) asm("_strlcat");
77*5e3eaea3SApple OSS Distributions extern size_t strlcpy_impl(char *, const char *, size_t) asm("_strlcpy");
78*5e3eaea3SApple OSS Distributions 
79*5e3eaea3SApple OSS Distributions /*
80*5e3eaea3SApple OSS Distributions  * Deprecated functions
81*5e3eaea3SApple OSS Distributions  */
82*5e3eaea3SApple OSS Distributions extern char *strncpy_impl(char *, const char *, size_t) asm("_strncpy");
83*5e3eaea3SApple OSS Distributions extern char *strncat_impl(char *, const char *, size_t) asm("_strncat");
84*5e3eaea3SApple OSS Distributions 
85*5e3eaea3SApple OSS Distributions #if CONFIG_VSPRINTF
86*5e3eaea3SApple OSS Distributions extern char *strcpy_impl(char *, const char *) asm("_strcpy");
87*5e3eaea3SApple OSS Distributions extern char *strcat_impl(char *, const char *) asm("_strcat");
88*5e3eaea3SApple OSS Distributions #endif
89*5e3eaea3SApple OSS Distributions 
90*5e3eaea3SApple OSS Distributions #endif /* _MACHINE_STRING_H_ */
91