19 #ifndef _COBALT_ASM_GENERIC_SYSCALL_H
20 #define _COBALT_ASM_GENERIC_SYSCALL_H
22 #include <linux/types.h>
23 #include <asm/uaccess.h>
24 #include <asm/xenomai/features.h>
25 #include <asm/xenomai/wrappers.h>
26 #include <asm/xenomai/machine.h>
27 #include <cobalt/uapi/asm-generic/syscall.h>
29 #define access_rok(addr, size) access_ok(VERIFY_READ, (addr), (size))
30 #define access_wok(addr, size) access_ok(VERIFY_WRITE, (addr), (size))
32 #define __xn_reg_arglist(regs) \
33 __xn_reg_arg1(regs), \
34 __xn_reg_arg2(regs), \
35 __xn_reg_arg3(regs), \
36 __xn_reg_arg4(regs), \
39 #define __xn_copy_from_user(dstP, srcP, n) __copy_from_user_inatomic(dstP, srcP, n)
40 #define __xn_copy_to_user(dstP, srcP, n) __copy_to_user_inatomic(dstP, srcP, n)
41 #define __xn_put_user(src, dstP) __put_user_inatomic(src, dstP)
42 #define __xn_get_user(dst, srcP) __get_user_inatomic(dst, srcP)
43 #define __xn_strncpy_from_user(dstP, srcP, n) strncpy_from_user(dstP, srcP, n)
45 static inline int cobalt_copy_from_user(
void *dst,
const void __user *src,
48 return (!access_rok(src, size) ||
49 __xn_copy_from_user(dst, src, size)) ? -EFAULT : 0;
52 static inline int cobalt_copy_to_user(
void __user *dst,
const void *src,
55 return (!access_wok(dst, size) ||
56 __xn_copy_to_user(dst, src, size)) ? -EFAULT : 0;
59 static inline int cobalt_strncpy_from_user(
char *dst,
const char __user *src,
62 if (unlikely(!access_rok(src, 1)))
65 return __xn_strncpy_from_user(dst, src, count);
69 #define __COBALT_COMPAT_BIT 0x1
71 #define __COBALT_COMPATX_BIT 0x2