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 *** To edit the content of this header, modify the corresponding 11 *** source file (e.g. under external/kernel-headers/original/) then 12 *** run bionic/libc/kernel/tools/update_all.py 13 *** 14 *** Any manual change here will be lost the next time this script will 15 *** be run. You've been warned! 16 *** 17 **************************************************************************** 18 ****************************************************************************/ 19 #ifndef __ASM_CMPXCHG_H 20 #define __ASM_CMPXCHG_H 21 #include <linux/bitops.h> 22 #define xchg(ptr,v) ((__typeof__(*(ptr)))__xchg((unsigned long)(v),(ptr),sizeof(*(ptr)))) 23 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 24 struct __xchg_dummy { unsigned long a[100]; }; 25 #define __xg(x) ((struct __xchg_dummy *)(x)) 26 #define ll_low(x) *(((unsigned int*)&(x))+0) 27 #define ll_high(x) *(((unsigned int*)&(x))+1) 28 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 29 #define set_64bit(ptr,value) (__builtin_constant_p(value) ? __set_64bit_constant(ptr, value) : __set_64bit_var(ptr, value) ) 30 #define _set_64bit(ptr,value) (__builtin_constant_p(value) ? __set_64bit(ptr, (unsigned int)(value), (unsigned int)((value)>>32ULL) ) : __set_64bit(ptr, ll_low(value), ll_high(value)) ) 31 #define cmpxchg(ptr,o,n) ({ __typeof__(*(ptr)) __ret; if (likely(boot_cpu_data.x86 > 3)) __ret = __cmpxchg((ptr), (unsigned long)(o), (unsigned long)(n), sizeof(*(ptr))); else __ret = cmpxchg_386((ptr), (unsigned long)(o), (unsigned long)(n), sizeof(*(ptr))); __ret; }) 32 #define cmpxchg_local(ptr,o,n) ({ __typeof__(*(ptr)) __ret; if (likely(boot_cpu_data.x86 > 3)) __ret = __cmpxchg_local((ptr), (unsigned long)(o), (unsigned long)(n), sizeof(*(ptr))); else __ret = cmpxchg_386((ptr), (unsigned long)(o), (unsigned long)(n), sizeof(*(ptr))); __ret; }) 33 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 34 #define cmpxchg64(ptr,o,n) ((__typeof__(*(ptr)))__cmpxchg64((ptr),(unsigned long long)(o), (unsigned long long)(n))) 35 #define cmpxchg64_local(ptr,o,n) ((__typeof__(*(ptr)))__cmpxchg64_local((ptr),(unsigned long long)(o), (unsigned long long)(n))) 36 #endif 37