return res;
}
-extern long __strnlen_kernel_nocheck_asm(const char __user *s, long n);
-extern long __strnlen_user_nocheck_asm(const char __user *s, long n);
-
-/* Returns: 0 if bad, string length+1 (memory size) of string if ok */
-static inline long __strnlen_user(const char __user *s, long n)
-{
- long res;
-
- if (eva_kernel_access()) {
- __asm__ __volatile__(
- "move\t$4, %1\n\t"
- "move\t$5, %2\n\t"
- __MODULE_JAL(__strnlen_kernel_nocheck_asm)
- "move\t%0, $2"
- : "=r" (res)
- : "r" (s), "r" (n)
- : "$2", "$4", "$5", __UA_t0, "$31");
- } else {
- might_fault();
- __asm__ __volatile__(
- "move\t$4, %1\n\t"
- "move\t$5, %2\n\t"
- __MODULE_JAL(__strnlen_user_nocheck_asm)
- "move\t%0, $2"
- : "=r" (res)
- : "r" (s), "r" (n)
- : "$2", "$4", "$5", __UA_t0, "$31");
- }
-
- return res;
-}
-
extern long __strnlen_kernel_asm(const char __user *s, long n);
extern long __strnlen_user_asm(const char __user *s, long n);
and v0, a0
bnez v0, .Lfault\@
-FEXPORT(__strnlen_\func\()_nocheck_asm)
move v0, a0
PTR_ADDU a1, a0 # stop pointer
1:
#ifndef CONFIG_EVA
/* Set aliases */
.global __strnlen_user_asm
- .global __strnlen_user_nocheck_asm
.set __strnlen_user_asm, __strnlen_kernel_asm
- .set __strnlen_user_nocheck_asm, __strnlen_kernel_nocheck_asm
EXPORT_SYMBOL(__strnlen_user_asm)
-EXPORT_SYMBOL(__strnlen_user_nocheck_asm)
#endif
__BUILD_STRNLEN_ASM kernel
EXPORT_SYMBOL(__strnlen_kernel_asm)
-EXPORT_SYMBOL(__strnlen_kernel_nocheck_asm)
#ifdef CONFIG_EVA
__BUILD_STRNLEN_ASM user
.set pop
EXPORT_SYMBOL(__strnlen_user_asm)
-EXPORT_SYMBOL(__strnlen_user_nocheck_asm)
#endif