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-rw-r--r--arch/powerpc/boot/string.S37
1 files changed, 37 insertions, 0 deletions
diff --git a/arch/powerpc/boot/string.S b/arch/powerpc/boot/string.S
index ac3d43b6a324..643e4cb2f11d 100644
--- a/arch/powerpc/boot/string.S
+++ b/arch/powerpc/boot/string.S
@@ -49,6 +49,17 @@ strcat:
49 bne 1b 49 bne 1b
50 blr 50 blr
51 51
52 .globl strchr
53strchr:
54 addi r3,r3,-1
551: lbzu r0,1(r3)
56 cmpw 0,r0,r4
57 beqlr
58 cmpwi 0,r0,0
59 bne 1b
60 li r3,0
61 blr
62
52 .globl strcmp 63 .globl strcmp
53strcmp: 64strcmp:
54 addi r5,r3,-1 65 addi r5,r3,-1
@@ -61,6 +72,19 @@ strcmp:
61 beq 1b 72 beq 1b
62 blr 73 blr
63 74
75 .globl strncmp
76strncmp:
77 mtctr r5
78 addi r5,r3,-1
79 addi r4,r4,-1
801: lbzu r3,1(r5)
81 cmpwi 1,r3,0
82 lbzu r0,1(r4)
83 subf. r3,r0,r3
84 beqlr 1
85 bdnzt eq,1b
86 blr
87
64 .globl strlen 88 .globl strlen
65strlen: 89strlen:
66 addi r4,r3,-1 90 addi r4,r3,-1
@@ -195,6 +219,19 @@ backwards_memcpy:
195 mtctr r7 219 mtctr r7
196 b 1b 220 b 1b
197 221
222 .globl memchr
223memchr:
224 cmpwi 0,r5,0
225 blelr
226 mtctr r5
227 addi r3,r3,-1
2281: lbzu r0,1(r3)
229 cmpw r0,r4
230 beqlr
231 bdnz 1b
232 li r3,0
233 blr
234
198 .globl memcmp 235 .globl memcmp
199memcmp: 236memcmp:
200 cmpwi 0,r5,0 237 cmpwi 0,r5,0