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8 #include <asm/assembly.h>
9 #include <linux/linkage.h>
10
11 .section .text.hot
12 .level PA_ASM_LEVEL
13
14 t0 = r20
15 t1 = r21
16 t2 = r22
17
18 ENTRY_CFI(strlen, frame=0,no_calls)
19 or,COND(<>) arg0,r0,ret0
20 b,l,n .Lstrlen_null_ptr,r0
21 depwi 0,31,2,ret0
22 cmpb,COND(<>) arg0,ret0,.Lstrlen_not_aligned
23 ldw,ma 4(ret0),t0
24 cmpib,tr 0,r0,.Lstrlen_loop
25 uxor,nbz r0,t0,r0
26 .Lstrlen_not_aligned:
27 uaddcm arg0,ret0,t1
28 shladd t1,3,r0,t1
29 mtsar t1
30 depwi -1,%sar,32,t0
31 uxor,nbz r0,t0,r0
32 .Lstrlen_loop:
33 b,l,n .Lstrlen_end_loop,r0
34 ldw,ma 4(ret0),t0
35 cmpib,tr 0,r0,.Lstrlen_loop
36 uxor,nbz r0,t0,r0
37 .Lstrlen_end_loop:
38 extrw,u,<> t0,7,8,r0
39 addib,tr,n -3,ret0,.Lstrlen_out
40 extrw,u,<> t0,15,8,r0
41 addib,tr,n -2,ret0,.Lstrlen_out
42 extrw,u,<> t0,23,8,r0
43 addi -1,ret0,ret0
44 .Lstrlen_out:
45 bv r0(rp)
46 uaddcm ret0,arg0,ret0
47 .Lstrlen_null_ptr:
48 bv,n r0(rp)
49 ENDPROC_CFI(strlen)
50
51
52 ENTRY_CFI(strcpy, frame=0,no_calls)
53 ldb 0(arg1),t0
54 stb t0,0(arg0)
55 ldo 0(arg0),ret0
56 ldo 1(arg1),t1
57 cmpb,= r0,t0,2f
58 ldo 1(arg0),t2
59 1: ldb 0(t1),arg1
60 stb arg1,0(t2)
61 ldo 1(t1),t1
62 cmpb,<> r0,arg1,1b
63 ldo 1(t2),t2
64 2: bv,n r0(rp)
65 ENDPROC_CFI(strcpy)
66
67
68 ENTRY_CFI(strncpy, frame=0,no_calls)
69 ldb 0(arg1),t0
70 stb t0,0(arg0)
71 ldo 1(arg1),t1
72 ldo 0(arg0),ret0
73 cmpb,= r0,t0,2f
74 ldo 1(arg0),arg1
75 1: ldo -1(arg2),arg2
76 cmpb,COND(=),n r0,arg2,2f
77 ldb 0(t1),arg0
78 stb arg0,0(arg1)
79 ldo 1(t1),t1
80 cmpb,<> r0,arg0,1b
81 ldo 1(arg1),arg1
82 2: bv,n r0(rp)
83 ENDPROC_CFI(strncpy)
84
85
86 ENTRY_CFI(strcat, frame=0,no_calls)
87 ldb 0(arg0),t0
88 cmpb,= t0,r0,2f
89 ldo 0(arg0),ret0
90 ldo 1(arg0),arg0
91 1: ldb 0(arg0),t1
92 cmpb,<>,n r0,t1,1b
93 ldo 1(arg0),arg0
94 2: ldb 0(arg1),t2
95 stb t2,0(arg0)
96 ldo 1(arg0),arg0
97 ldb 0(arg1),t0
98 cmpb,<> r0,t0,2b
99 ldo 1(arg1),arg1
100 bv,n r0(rp)
101 ENDPROC_CFI(strcat)
102
103
104 ENTRY_CFI(memset, frame=0,no_calls)
105 copy arg0,ret0
106 cmpb,COND(=) r0,arg0,4f
107 copy arg0,t2
108 cmpb,COND(=) r0,arg2,4f
109 ldo -1(arg2),arg3
110 subi -1,arg3,t0
111 subi 0,t0,t1
112 cmpiclr,COND(>=) 0,t1,arg2
113 ldo -1(t1),arg2
114 extru arg2,31,2,arg0
115 2: stb arg1,0(t2)
116 ldo 1(t2),t2
117 addib,>= -1,arg0,2b
118 ldo -1(arg3),arg3
119 cmpiclr,COND(<=) 4,arg2,r0
120 b,l,n 4f,r0
121 #ifdef CONFIG_64BIT
122 depd,* r0,63,2,arg2
123 #else
124 depw r0,31,2,arg2
125 #endif
126 ldo 1(t2),t2
127 3: stb arg1,-1(t2)
128 stb arg1,0(t2)
129 stb arg1,1(t2)
130 stb arg1,2(t2)
131 addib,COND(>) -4,arg2,3b
132 ldo 4(t2),t2
133 4: bv,n r0(rp)
134 ENDPROC_CFI(memset)
135
136 .end