1 /**************************************************************************** 2 **************************************************************************** 3 *** 4 *** This header was automatically generated from a Linux kernel header 5 *** of the same name, to make information necessary for userspace to 6 *** call into the kernel available to libc. It contains only constants, 7 *** structures, and macros generated from the original header, and thus, 8 *** contains no copyrightable information. 9 *** 10 **************************************************************************** 11 ****************************************************************************/ 12 #ifndef __ASM_SH_SEGMENT_H 13 #define __ASM_SH_SEGMENT_H 14 15 #ifndef __ASSEMBLY__ 16 17 typedef struct { 18 unsigned long seg; 19 } mm_segment_t; 20 21 #define MAKE_MM_SEG(s) ((mm_segment_t) { (s) }) 22 23 #define KERNEL_DS MAKE_MM_SEG(0xFFFFFFFFUL) 24 #define USER_DS MAKE_MM_SEG(PAGE_OFFSET) 25 26 #define segment_eq(a,b) ((a).seg == (b).seg) 27 28 #define get_ds() (KERNEL_DS) 29 30 #define get_fs() (current_thread_info()->addr_limit) 31 #define set_fs(x) (current_thread_info()->addr_limit = (x)) 32 33 #endif 34 #endif 35