MIPS: lib: strncpy_user: Use macro to build the strncpy_from_user symbol
Build the __strncpy_from_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/strncpy_user.S b/arch/mips/lib/strncpy_user.S
index 92870b6..51b38ab1 100644
--- a/arch/mips/lib/strncpy_user.S
+++ b/arch/mips/lib/strncpy_user.S
@@ -28,16 +28,17 @@
* it happens at most some bytes of the exceptions handlers will be copied.
*/
-LEAF(__strncpy_from_user_asm)
+ .macro __BUILD_STRNCPY_ASM func
+LEAF(__strncpy_from_\func\()_asm)
LONG_L v0, TI_ADDR_LIMIT($28) # pointer ok?
and v0, a1
- bnez v0, .Lfault
+ bnez v0, .Lfault\@
-FEXPORT(__strncpy_from_user_nocheck_asm)
+FEXPORT(__strncpy_from_\func\()_nocheck_asm)
.set noreorder
move t0, zero
move v1, a1
-1: EX(lbu, v0, (v1), .Lfault)
+1: EX(lbu, v0, (v1), .Lfault\@)
PTR_ADDIU v1, 1
R10KCBARRIER(0(ra))
beqz v0, 2f
@@ -47,15 +48,19 @@
PTR_ADDIU a0, 1
2: PTR_ADDU v0, a1, t0
xor v0, a1
- bltz v0, .Lfault
+ bltz v0, .Lfault\@
nop
jr ra # return n
move v0, t0
- END(__strncpy_from_user_asm)
+ END(__strncpy_from_\func\()_asm)
-.Lfault: jr ra
+.Lfault\@: jr ra
li v0, -EFAULT
.section __ex_table,"a"
- PTR 1b, .Lfault
+ PTR 1b, .Lfault\@
.previous
+
+ .endm
+
+__BUILD_STRNCPY_ASM user