#include <linux/compiler.h>
#include <linux/errno.h>
#include <linux/prefetch.h>
+#include <linux/lockdep.h>
#include <asm/page.h>
-#define ARCH_HAS_SEARCH_EXTABLE
-
-extern void __put_user_1(void);
-extern void __put_user_2(void);
-extern void __put_user_4(void);
-extern void __put_user_8(void);
-extern void __put_user_bad(void);
-
-#define __put_user_x(size, ret, x, ptr) \
- asm volatile("call __put_user_" #size \
- :"=a" (ret) \
- :"c" (ptr),"a" (x) \
- :"ebx")
-
-#define put_user(x, ptr) \
- __put_user_check((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr)))
-
-#define __get_user(x, ptr) \
- __get_user_nocheck((x), (ptr), sizeof(*(ptr)))
-#define __put_user(x, ptr) \
- __put_user_nocheck((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr)))
-
-#define __get_user_unaligned __get_user
-#define __put_user_unaligned __put_user
-
-#define __put_user_nocheck(x, ptr, size) \
-({ \
- int __pu_err; \
- __put_user_size((x), (ptr), (size), __pu_err); \
- __pu_err; \
-})
-
-
-#define __put_user_check(x, ptr, size) \
-({ \
- int __pu_err; \
- typeof(*(ptr)) __user *__pu_addr = (ptr); \
- switch (size) { \
- case 1: \
- __put_user_x(1, __pu_err, x, __pu_addr); \
- break; \
- case 2: \
- __put_user_x(2, __pu_err, x, __pu_addr); \
- break; \
- case 4: \
- __put_user_x(4, __pu_err, x, __pu_addr); \
- break; \
- case 8: \
- __put_user_x(8, __pu_err, x, __pu_addr); \
- break; \
- default: \
- __put_user_bad(); \
- } \
- __pu_err; \
-})
-
-#define __put_user_size(x, ptr, size, retval) \
-do { \
- retval = 0; \
- __chk_user_ptr(ptr); \
- switch (size) { \
- case 1: \
- __put_user_asm(x, ptr, retval, "b", "b", "iq", -EFAULT);\
- break; \
- case 2: \
- __put_user_asm(x, ptr, retval, "w", "w", "ir", -EFAULT);\
- break; \
- case 4: \
- __put_user_asm(x, ptr, retval, "l", "k", "ir", -EFAULT);\
- break; \
- case 8: \
- __put_user_asm(x, ptr, retval, "q", "", "Zr", -EFAULT); \
- break; \
- default: \
- __put_user_bad(); \
- } \
-} while (0)
-
-/* FIXME: this hack is definitely wrong -AK */
-struct __large_struct { unsigned long buf[100]; };
-#define __m(x) (*(struct __large_struct __user *)(x))
-
-/*
- * Tell gcc we read from memory instead of writing: this is because
- * we do not write to any memory gcc knows about, so there are no
- * aliasing issues.
- */
-#define __put_user_asm(x, addr, err, itype, rtype, ltype, errno) \
- asm volatile("1: mov"itype" %"rtype"1,%2\n" \
- "2:\n" \
- ".section .fixup, \"ax\"\n" \
- "3: mov %3,%0\n" \
- " jmp 2b\n" \
- ".previous\n" \
- _ASM_EXTABLE(1b, 3b) \
- : "=r"(err) \
- : ltype (x), "m" (__m(addr)), "i" (errno), "0" (err))
-
-
-#define __get_user_nocheck(x, ptr, size) \
-({ \
- int __gu_err; \
- unsigned long __gu_val; \
- __get_user_size(__gu_val, (ptr), (size), __gu_err); \
- (x) = (__force typeof(*(ptr)))__gu_val; \
- __gu_err; \
-})
-
-#define __get_user_size(x, ptr, size, retval) \
-do { \
- retval = 0; \
- __chk_user_ptr(ptr); \
- switch (size) { \
- case 1: \
- __get_user_asm(x, ptr, retval, "b", "b", "=q", -EFAULT);\
- break; \
- case 2: \
- __get_user_asm(x, ptr, retval, "w", "w", "=r", -EFAULT);\
- break; \
- case 4: \
- __get_user_asm(x, ptr, retval, "l", "k", "=r", -EFAULT);\
- break; \
- case 8: \
- __get_user_asm(x, ptr, retval, "q", "", "=r", -EFAULT); \
- break; \
- default: \
- (x) = __get_user_bad(); \
- } \
-} while (0)
-
-#define __get_user_asm(x, addr, err, itype, rtype, ltype, errno) \
- asm volatile("1: mov"itype" %2,%"rtype"1\n" \
- "2:\n" \
- ".section .fixup, \"ax\"\n" \
- "3: mov %3,%0\n" \
- " xor"itype" %"rtype"1,%"rtype"1\n" \
- " jmp 2b\n" \
- ".previous\n" \
- _ASM_EXTABLE(1b, 3b) \
- : "=r" (err), ltype (x) \
- : "m" (__m(addr)), "i"(errno), "0"(err))
-
/*
* Copy To/From Userspace
*/
return copy_user_generic((__force void *)dst, src, size);
}
-#define ARCH_HAS_NOCACHE_UACCESS 1
extern long __copy_user_nocache(void *dst, const void __user *src,
unsigned size, int zerorest);
return __copy_user_nocache(dst, src, size, 0);
}
+unsigned long
+copy_user_handle_tail(char *to, char *from, unsigned len, unsigned zerorest);
+
#endif /* __X86_64_UACCESS_H */
projects / linux-2.6-omap-h63xx.git / blobdiff