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-rw-r--r--arch/powerpc/lib/string.S14
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/powerpc/lib/string.S b/arch/powerpc/lib/string.S
index c4c622d8e6a..49eb1f1a2bb 100644
--- a/arch/powerpc/lib/string.S
+++ b/arch/powerpc/lib/string.S
@@ -75,6 +75,20 @@ _GLOBAL(strcmp)
beq 1b
blr
+_GLOBAL(strncmp)
+ PPC_LCMPI r5,0
+ beqlr
+ mtctr r5
+ addi r5,r3,-1
+ addi r4,r4,-1
+1: lbzu r3,1(r5)
+ cmpwi 1,r3,0
+ lbzu r0,1(r4)
+ subf. r3,r0,r3
+ beqlr 1
+ bdnzt eq,1b
+ blr
+
_GLOBAL(strlen)
addi r4,r3,-1
1: lbzu r0,1(r4)