1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
|
/****************************************************************************
****************************************************************************
***
*** This header was automatically generated from a Linux kernel header
*** of the same name, to make information necessary for userspace to
*** call into the kernel available to libc. It contains only constants,
*** structures, and macros generated from the original header, and thus,
*** contains no copyrightable information.
***
****************************************************************************
****************************************************************************/
#ifndef __ASM_SH_UACCESS_32_H
#define __ASM_SH_UACCESS_32_H
#define __get_user_size(x,ptr,size,retval) do { retval = 0; switch (size) { case 1: __get_user_asm(x, ptr, retval, "b"); break; case 2: __get_user_asm(x, ptr, retval, "w"); break; case 4: __get_user_asm(x, ptr, retval, "l"); break; default: __get_user_unknown(); break; } } while (0)
#define __get_user_asm(x, addr, err, insn) ({ __asm__ __volatile__( "1:\n\t" "mov." insn " %2, %1\n\t" "2:\n" ".section .fixup,\"ax\"\n" "3:\n\t" "mov #0, %1\n\t" "mov.l 4f, %0\n\t" "jmp @%0\n\t" " mov %3, %0\n\t" ".balign 4\n" "4: .long 2b\n\t" ".previous\n" ".section __ex_table,\"a\"\n\t" ".long 1b, 3b\n\t" ".previous" :"=&r" (err), "=&r" (x) :"m" (__m(addr)), "i" (-EFAULT), "0" (err)); })
#define __put_user_size(x,ptr,size,retval) do { retval = 0; switch (size) { case 1: __put_user_asm(x, ptr, retval, "b"); break; case 2: __put_user_asm(x, ptr, retval, "w"); break; case 4: __put_user_asm(x, ptr, retval, "l"); break; case 8: __put_user_u64(x, ptr, retval); break; default: __put_user_unknown(); } } while (0)
#define __put_user_asm(x, addr, err, insn) do { __asm__ __volatile__ ( "1:\n\t" "mov." insn " %1, %2\n\t" "2:\n" ".section .fixup,\"ax\"\n" "3:\n\t" "mov.l 4f, %0\n\t" "jmp @%0\n\t" " mov %3, %0\n\t" ".balign 4\n" "4: .long 2b\n\t" ".previous\n" ".section __ex_table,\"a\"\n\t" ".long 1b, 3b\n\t" ".previous" : "=&r" (err) : "r" (x), "m" (__m(addr)), "i" (-EFAULT), "0" (err) : "memory" ); } while (0)
#define __put_user_u64(val,addr,retval) ({ __asm__ __volatile__( "1:\n\t" "mov.l %R1,%2\n\t" "mov.l %S1,%T2\n\t" "2:\n" ".section .fixup,\"ax\"\n" "3:\n\t" "mov.l 4f,%0\n\t" "jmp @%0\n\t" " mov %3,%0\n\t" ".balign 4\n" "4: .long 2b\n\t" ".previous\n" ".section __ex_table,\"a\"\n\t" ".long 1b, 3b\n\t" ".previous" : "=r" (retval) : "r" (val), "m" (__m(addr)), "i" (-EFAULT), "0" (retval) : "memory"); })
#endif
|
