| /**************************************************************************** |
| **************************************************************************** |
| *** |
| *** 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 _ASMARM_UACCESS_H |
| #define _ASMARM_UACCESS_H |
| |
| #include <linux/sched.h> |
| #include <asm/errno.h> |
| #include <asm/memory.h> |
| #include <asm/domain.h> |
| #include <asm/system.h> |
| |
| #define VERIFY_READ 0 |
| #define VERIFY_WRITE 1 |
| |
| struct exception_table_entry |
| { |
| unsigned long insn, fixup; |
| }; |
| |
| #define KERNEL_DS 0x00000000 |
| #define get_ds() (KERNEL_DS) |
| |
| #define USER_DS KERNEL_DS |
| |
| #define segment_eq(a,b) (1) |
| #define __addr_ok(addr) (1) |
| #define __range_ok(addr,size) (0) |
| #define get_fs() (KERNEL_DS) |
| |
| #define get_user(x,p) __get_user(x,p) |
| #define put_user(x,p) __put_user(x,p) |
| #define access_ok(type,addr,size) (__range_ok(addr,size) == 0) |
| #define __get_user(x,ptr) ({ long __gu_err = 0; __get_user_err((x),(ptr),__gu_err); __gu_err; }) |
| #define __get_user_error(x,ptr,err) ({ __get_user_err((x),(ptr),err); (void) 0; }) |
| #define __get_user_err(x,ptr,err) do { unsigned long __gu_addr = (unsigned long)(ptr); unsigned long __gu_val; __chk_user_ptr(ptr); switch (sizeof(*(ptr))) { case 1: __get_user_asm_byte(__gu_val,__gu_addr,err); break; case 2: __get_user_asm_half(__gu_val,__gu_addr,err); break; case 4: __get_user_asm_word(__gu_val,__gu_addr,err); break; default: (__gu_val) = __get_user_bad(); } (x) = (__typeof__(*(ptr)))__gu_val; } while (0) |
| #define __get_user_asm_byte(x,addr,err) __asm__ __volatile__( "1: ldrbt %1,[%2],#0\n" "2:\n" " .section .fixup,\"ax\"\n" " .align 2\n" "3: mov %0, %3\n" " mov %1, #0\n" " b 2b\n" " .previous\n" " .section __ex_table,\"a\"\n" " .align 3\n" " .long 1b, 3b\n" " .previous" : "+r" (err), "=&r" (x) : "r" (addr), "i" (-EFAULT) : "cc") |
| #ifndef __ARMEB__ |
| #define __get_user_asm_half(x,__gu_addr,err) ({ unsigned long __b1, __b2; __get_user_asm_byte(__b1, __gu_addr, err); __get_user_asm_byte(__b2, __gu_addr + 1, err); (x) = __b1 | (__b2 << 8); }) |
| #else |
| #define __get_user_asm_half(x,__gu_addr,err) ({ unsigned long __b1, __b2; __get_user_asm_byte(__b1, __gu_addr, err); __get_user_asm_byte(__b2, __gu_addr + 1, err); (x) = (__b1 << 8) | __b2; }) |
| #endif |
| #define __get_user_asm_word(x,addr,err) __asm__ __volatile__( "1: ldrt %1,[%2],#0\n" "2:\n" " .section .fixup,\"ax\"\n" " .align 2\n" "3: mov %0, %3\n" " mov %1, #0\n" " b 2b\n" " .previous\n" " .section __ex_table,\"a\"\n" " .align 3\n" " .long 1b, 3b\n" " .previous" : "+r" (err), "=&r" (x) : "r" (addr), "i" (-EFAULT) : "cc") |
| #define __put_user(x,ptr) ({ long __pu_err = 0; __put_user_err((x),(ptr),__pu_err); __pu_err; }) |
| #define __put_user_error(x,ptr,err) ({ __put_user_err((x),(ptr),err); (void) 0; }) |
| #define __put_user_err(x,ptr,err) do { unsigned long __pu_addr = (unsigned long)(ptr); __typeof__(*(ptr)) __pu_val = (x); __chk_user_ptr(ptr); switch (sizeof(*(ptr))) { case 1: __put_user_asm_byte(__pu_val,__pu_addr,err); break; case 2: __put_user_asm_half(__pu_val,__pu_addr,err); break; case 4: __put_user_asm_word(__pu_val,__pu_addr,err); break; case 8: __put_user_asm_dword(__pu_val,__pu_addr,err); break; default: __put_user_bad(); } } while (0) |
| #define __put_user_asm_byte(x,__pu_addr,err) __asm__ __volatile__( "1: strbt %1,[%2],#0\n" "2:\n" " .section .fixup,\"ax\"\n" " .align 2\n" "3: mov %0, %3\n" " b 2b\n" " .previous\n" " .section __ex_table,\"a\"\n" " .align 3\n" " .long 1b, 3b\n" " .previous" : "+r" (err) : "r" (x), "r" (__pu_addr), "i" (-EFAULT) : "cc") |
| #ifndef __ARMEB__ |
| #define __put_user_asm_half(x,__pu_addr,err) ({ unsigned long __temp = (unsigned long)(x); __put_user_asm_byte(__temp, __pu_addr, err); __put_user_asm_byte(__temp >> 8, __pu_addr + 1, err); }) |
| #else |
| #define __put_user_asm_half(x,__pu_addr,err) ({ unsigned long __temp = (unsigned long)(x); __put_user_asm_byte(__temp >> 8, __pu_addr, err); __put_user_asm_byte(__temp, __pu_addr + 1, err); }) |
| #endif |
| #define __put_user_asm_word(x,__pu_addr,err) __asm__ __volatile__( "1: strt %1,[%2],#0\n" "2:\n" " .section .fixup,\"ax\"\n" " .align 2\n" "3: mov %0, %3\n" " b 2b\n" " .previous\n" " .section __ex_table,\"a\"\n" " .align 3\n" " .long 1b, 3b\n" " .previous" : "+r" (err) : "r" (x), "r" (__pu_addr), "i" (-EFAULT) : "cc") |
| #ifndef __ARMEB__ |
| #define __reg_oper0 "%R2" |
| #define __reg_oper1 "%Q2" |
| #else |
| #define __reg_oper0 "%Q2" |
| #define __reg_oper1 "%R2" |
| #endif |
| #define __put_user_asm_dword(x,__pu_addr,err) __asm__ __volatile__( "1: strt " __reg_oper1 ", [%1], #4\n" "2: strt " __reg_oper0 ", [%1], #0\n" "3:\n" " .section .fixup,\"ax\"\n" " .align 2\n" "4: mov %0, %3\n" " b 3b\n" " .previous\n" " .section __ex_table,\"a\"\n" " .align 3\n" " .long 1b, 4b\n" " .long 2b, 4b\n" " .previous" : "+r" (err), "+r" (__pu_addr) : "r" (x), "i" (-EFAULT) : "cc") |
| #define __copy_from_user(to,from,n) (memcpy(to, (void __force *)from, n), 0) |
| #define __copy_to_user(to,from,n) (memcpy((void __force *)to, from, n), 0) |
| #define __clear_user(addr,n) (memset((void __force *)addr, 0, n), 0) |
| |
| #define __copy_to_user_inatomic __copy_to_user |
| #define __copy_from_user_inatomic __copy_from_user |
| #define strlen_user(s) strnlen_user(s, ~0UL >> 1) |
| #endif |
