diff options
Diffstat (limited to 'libc/kernel/arch-mips/asm/uaccess.h')
| -rw-r--r-- | libc/kernel/arch-mips/asm/uaccess.h | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/libc/kernel/arch-mips/asm/uaccess.h b/libc/kernel/arch-mips/asm/uaccess.h index 3703af3..96025d3 100644 --- a/libc/kernel/arch-mips/asm/uaccess.h +++ b/libc/kernel/arch-mips/asm/uaccess.h @@ -23,35 +23,45 @@ /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ #include <linux/thread_info.h> #include <asm-generic/uaccess.h> +#define __UA_LIMIT 0x80000000UL +#define __UA_ADDR ".word" +/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ +#define __UA_LA "la" +#define __UA_ADDU "addu" +#define __UA_t0 "$8" +#define __UA_t1 "$9" +/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ #define KERNEL_DS ((mm_segment_t) { 0UL }) #define USER_DS ((mm_segment_t) { __UA_LIMIT }) -/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ #define VERIFY_READ 0 #define VERIFY_WRITE 1 +/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ #define get_ds() (KERNEL_DS) #define get_fs() (current_thread_info()->addr_limit) -/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ #define set_fs(x) (current_thread_info()->addr_limit = (x)) #define segment_eq(a, b) ((a).seg == (b).seg) +/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ #define __ua_size(size) ((__builtin_constant_p(size) && (signed long) (size) > 0) ? 0 : (size)) #define __access_mask get_fs().seg -/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ #define __access_ok(addr, size, mask) (((signed long)((mask) & ((addr) | ((addr) + (size)) | __ua_size(size)))) == 0) #define access_ok(type, addr, size) likely(__access_ok((unsigned long)(addr), (size), __access_mask)) +/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ #define put_user(x,ptr) __put_user_check((x), (ptr), sizeof(*(ptr))) #define get_user(x,ptr) __get_user_check((x), (ptr), sizeof(*(ptr))) -/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ #define __put_user(x,ptr) __put_user_nocheck((x), (ptr), sizeof(*(ptr))) #define __get_user(x,ptr) __get_user_nocheck((x), (ptr), sizeof(*(ptr))) +/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ struct __large_struct { unsigned long buf[100]; }; #define __m(x) (*(struct __large_struct __user *)(x)) -/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ +#define __GET_USER_DW(val, ptr) __get_user_asm_ll32(val, ptr) #define __get_user_common(val, size, ptr) do { switch (size) { case 1: __get_user_asm(val, "lb", ptr); break; case 2: __get_user_asm(val, "lh", ptr); break; case 4: __get_user_asm(val, "lw", ptr); break; case 8: __GET_USER_DW(val, ptr); break; default: __get_user_unknown(); break; } } while (0) +/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ #define __get_user_nocheck(x, ptr, size) ({ long __gu_err; __get_user_common((x), size, ptr); __gu_err; }) #define __get_user_check(x, ptr, size) ({ long __gu_err = -EFAULT; const __typeof__(*(ptr)) __user * __gu_ptr = (ptr); if (likely(access_ok(VERIFY_READ, __gu_ptr, size))) __get_user_common((x), size, __gu_ptr); __gu_err; }) #define __get_user_asm(val, insn, addr) { long __gu_tmp; __asm__ __volatile__( "1: " insn " %1, %3 \n" "2: \n" " .section .fixup,\"ax\" \n" "3: li %0, %4 \n" " j 2b \n" " .previous \n" " .section __ex_table,\"a\" \n" " "__UA_ADDR "\t1b, 3b \n" " .previous \n" : "=r" (__gu_err), "=r" (__gu_tmp) : "0" (0), "o" (__m(addr)), "i" (-EFAULT)); (val) = (__typeof__(*(addr))) __gu_tmp; } -/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ #define __get_user_asm_ll32(val, addr) { union { unsigned long long l; __typeof__(*(addr)) t; } __gu_tmp; __asm__ __volatile__( "1: lw %1, (%3) \n" "2: lw %D1, 4(%3) \n" "3: .section .fixup,\"ax\" \n" "4: li %0, %4 \n" " move %1, $0 \n" " move %D1, $0 \n" " j 3b \n" " .previous \n" " .section __ex_table,\"a\" \n" " " __UA_ADDR " 1b, 4b \n" " " __UA_ADDR " 2b, 4b \n" " .previous \n" : "=r" (__gu_err), "=&r" (__gu_tmp.l) : "0" (0), "r" (addr), "i" (-EFAULT)); (val) = __gu_tmp.t; } +/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ +#define __PUT_USER_DW(ptr) __put_user_asm_ll32(ptr) #define __put_user_nocheck(x, ptr, size) ({ __typeof__(*(ptr)) __pu_val; long __pu_err = 0; __pu_val = (x); switch (size) { case 1: __put_user_asm("sb", ptr); break; case 2: __put_user_asm("sh", ptr); break; case 4: __put_user_asm("sw", ptr); break; case 8: __PUT_USER_DW(ptr); break; default: __put_user_unknown(); break; } __pu_err; }) #define __put_user_check(x, ptr, size) ({ __typeof__(*(ptr)) __user *__pu_addr = (ptr); __typeof__(*(ptr)) __pu_val = (x); long __pu_err = -EFAULT; if (likely(access_ok(VERIFY_WRITE, __pu_addr, size))) { switch (size) { case 1: __put_user_asm("sb", __pu_addr); break; case 2: __put_user_asm("sh", __pu_addr); break; case 4: __put_user_asm("sw", __pu_addr); break; case 8: __PUT_USER_DW(__pu_addr); break; default: __put_user_unknown(); break; } } __pu_err; }) #define __put_user_asm(insn, ptr) { __asm__ __volatile__( "1: " insn " %z2, %3 # __put_user_asm\n" "2: \n" " .section .fixup,\"ax\" \n" "3: li %0, %4 \n" " j 2b \n" " .previous \n" " .section __ex_table,\"a\" \n" " " __UA_ADDR " 1b, 3b \n" " .previous \n" : "=r" (__pu_err) : "0" (0), "Jr" (__pu_val), "o" (__m(ptr)), "i" (-EFAULT)); } |