1 /* SPDX-License-Identifier: LGPL-2.1 OR MIT */ 2 /* 3 * Sysmacro definitions for NOLIBC 4 * Copyright (C) 2017-2021 Willy Tarreau <w@1wt.eu> 5 */ 6 7 /* make sure to include all global symbols */ 8 #include "../nolibc.h" 9 10 #ifndef _NOLIBC_SYS_SYSMACROS_H 11 #define _NOLIBC_SYS_SYSMACROS_H 12 13 #include "../std.h" 14 15 /* WARNING, it only deals with the 4096 first majors and 256 first minors */ 16 static __inline__ dev_t __nolibc_makedev(unsigned int maj, unsigned int min) 17 { 18 return ((maj & 0xfff) << 8) | (min & 0xff); 19 } 20 21 #define makedev(maj, min) __nolibc_makedev(maj, min) 22 23 static __inline__ unsigned int __nolibc_major(dev_t dev) 24 { 25 return (dev >> 8) & 0xfff; 26 } 27 28 #define major(dev) __nolibc_major(dev) 29 30 static __inline__ unsigned int __nolibc_minor(dev_t dev) 31 { 32 return dev & 0xff; 33 } 34 35 #define minor(dev) __nolibc_minor(dev) 36 37 #endif /* _NOLIBC_SYS_SYSMACROS_H */ 38