MIPS: lib: strnlen_user: Use macro to build the strnlen_user symbol
Build the __strnlen_user symbol using a macro. In EVA mode we will
need to use similar code to do the userspace load operations so
it is better if we use a macro to avoid code duplications.
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
diff --git a/arch/mips/lib/strnlen_user.S b/arch/mips/lib/strnlen_user.S
index fcacea5..4422160 100644
--- a/arch/mips/lib/strnlen_user.S
+++ b/arch/mips/lib/strnlen_user.S
@@ -25,22 +25,26 @@
* bytes. There's nothing secret there. On 64-bit accessing beyond
* the maximum is a tad hairier ...
*/
-LEAF(__strnlen_user_asm)
+ .macro __BUILD_STRNLEN_ASM func
+LEAF(__strnlen_\func\()_asm)
LONG_L v0, TI_ADDR_LIMIT($28) # pointer ok?
and v0, a0
- bnez v0, .Lfault
+ bnez v0, .Lfault\@
-FEXPORT(__strnlen_user_nocheck_asm)
+FEXPORT(__strnlen_\func\()_nocheck_asm)
move v0, a0
PTR_ADDU a1, a0 # stop pointer
1: beq v0, a1, 1f # limit reached?
- EX(lb, t0, (v0), .Lfault)
+ EX(lb, t0, (v0), .Lfault\@)
PTR_ADDIU v0, 1
bnez t0, 1b
1: PTR_SUBU v0, a0
jr ra
- END(__strnlen_user_asm)
+ END(__strnlen_\func\()_asm)
-.Lfault:
+.Lfault\@:
move v0, zero
jr ra
+ .endm
+
+__BUILD_STRNLEN_ASM user