blob: ff56cfa3966d83baa8ceecc5e46549355e45365c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
|
# RUN: llvm-mc -triple bpfel -filetype=obj -o %t %s
# RUN: llvm-objdump -d -r %t | FileCheck --check-prefixes CHECK,CHECK-64 %s
# RUN: llvm-objdump -mattr=+alu32 -d -r %t | FileCheck --check-prefixes CHECK,CHECK-32 %s
// ======== BPF_LD Class ========
// Some extra whitespaces are deliberately added to test the parser.
r0 = * (u8 *)skb[0] // BPF_LD | BPF_ABS | BPF_B
r0 = *(u16 *)skb[2] // BPF_LD | BPF_ABS | BPF_H
r0 = * (u32*)skb[4] // BPF_LD | BPF_ABS | BPF_W
// CHECK: 30 00 00 00 00 00 00 00 r0 = *(u8 *)skb[0]
// CHECK: 28 00 00 00 02 00 00 00 r0 = *(u16 *)skb[2]
// CHECK: 20 00 00 00 04 00 00 00 r0 = *(u32 *)skb[4]
r0 = * (u8 *)skb[r0] // BPF_LD | BPF_IND | BPF_B
r0 = * (u16 *)skb[r1] // BPF_LD | BPF_IND | BPF_H
r0 = *(u32 *)skb[r2] // BPF_LD | BPF_IND | BPF_W
// CHECK: 50 00 00 00 00 00 00 00 r0 = *(u8 *)skb[r0]
// CHECK: 48 10 00 00 00 00 00 00 r0 = *(u16 *)skb[r1]
// CHECK: 40 20 00 00 00 00 00 00 r0 = *(u32 *)skb[r2]
r9 = 0xffffffff ll // BPF_LD | BPF_DW | BPF_IMM
r9 = 8589934591 ll // BPF_LD | BPF_DW | BPF_IMM
r9 = 0x1ffffffff ll // BPF_LD | BPF_DW | BPF_IMM
r9 = dummy_map ll // BPF_LD | BPF_DW | BPF_IMM
// CHECK: 18 09 00 00 ff ff ff ff 00 00 00 00 00 00 00 00 r9 = 4294967295 ll
// CHECK: 18 09 00 00 ff ff ff ff 00 00 00 00 01 00 00 00 r9 = 8589934591 ll
// CHECK: 18 09 00 00 ff ff ff ff 00 00 00 00 01 00 00 00 r9 = 8589934591 ll
// CHECK: 18 09 00 00 00 00 00 00 00 00 00 00 00 00 00 00 r9 = 0 ll
// CHECK: 0000000000000060: R_BPF_64_64 dummy_map
// ======== BPF_LDX Class ========
r5 = *(u8 *)(r0 + 0) // BPF_LDX | BPF_B
r6 = *(u16 *)(r1 + 8) // BPF_LDX | BPF_H
r7 = *(u32 *)(r2 + 16) // BPF_LDX | BPF_W
r8 = *(u64 *)(r3 - 30) // BPF_LDX | BPF_DW
// CHECK-64: 71 05 00 00 00 00 00 00 r5 = *(u8 *)(r0 + 0)
// CHECK-64: 69 16 08 00 00 00 00 00 r6 = *(u16 *)(r1 + 8)
// CHECK-64: 61 27 10 00 00 00 00 00 r7 = *(u32 *)(r2 + 16)
// CHECK-32: 71 05 00 00 00 00 00 00 w5 = *(u8 *)(r0 + 0)
// CHECK-32: 69 16 08 00 00 00 00 00 w6 = *(u16 *)(r1 + 8)
// CHECK-32: 61 27 10 00 00 00 00 00 w7 = *(u32 *)(r2 + 16)
// CHECK: 79 38 e2 ff 00 00 00 00 r8 = *(u64 *)(r3 - 30)
// ======== BPF_STX Class ========
*(u8 *)(r0 + 0) = r7 // BPF_STX | BPF_B
*(u16 *)(r1 + 8) = r8 // BPF_STX | BPF_H
*(u32 *)(r2 + 16) = r9 // BPF_STX | BPF_W
*(u64 *)(r3 - 30) = r10 // BPF_STX | BPF_DW
// CHECK-64: 73 70 00 00 00 00 00 00 *(u8 *)(r0 + 0) = r7
// CHECK-64: 6b 81 08 00 00 00 00 00 *(u16 *)(r1 + 8) = r8
// CHECK-64: 63 92 10 00 00 00 00 00 *(u32 *)(r2 + 16) = r9
// CHECK-32: 73 70 00 00 00 00 00 00 *(u8 *)(r0 + 0) = w7
// CHECK-32: 6b 81 08 00 00 00 00 00 *(u16 *)(r1 + 8) = w8
// CHECK-32: 63 92 10 00 00 00 00 00 *(u32 *)(r2 + 16) = w9
// CHECK: 7b a3 e2 ff 00 00 00 00 *(u64 *)(r3 - 30) = r10
lock *(u32 *)(r2 + 16) += r9 // BPF_STX | BPF_W | BPF_XADD
lock *(u64 *)(r3 - 30) += r10 // BPF_STX | BPF_DW | BPF_XADD
// CHECK-64: c3 92 10 00 00 00 00 00 lock *(u32 *)(r2 + 16) += r9
// CHECK-32: c3 92 10 00 00 00 00 00 lock *(u32 *)(r2 + 16) += w9
// CHECK: db a3 e2 ff 00 00 00 00 lock *(u64 *)(r3 - 30) += r10
// ======== BPF_JMP Class ========
goto Llabel0 // BPF_JA
call 1 // BPF_CALL
exit // BPF_EXIT
// CHECK: 05 00 1a 00 00 00 00 00 goto +26
// CHECK: 85 00 00 00 01 00 00 00 call 1
// CHECK: 95 00 00 00 00 00 00 00 exit
if r0 == r1 goto Llabel0 // BPF_JEQ | BPF_X
if r3 != r4 goto Llabel0 // BPF_JNE | BPF_X
// CHECK: 1d 10 17 00 00 00 00 00 if r0 == r1 goto +23
// CHECK: 5d 43 16 00 00 00 00 00 if r3 != r4 goto +22
if r1 > r2 goto Llabel0 // BPF_JGT | BPF_X
if r2 >= r3 goto Llabel0 // BPF_JGE | BPF_X
if r4 s> r5 goto Llabel0 // BPF_JSGT | BPF_X
if r5 s>= r6 goto Llabel0 // BPF_JSGE | BPF_X
// CHECK: 2d 21 15 00 00 00 00 00 if r1 > r2 goto +21
// CHECK: 3d 32 14 00 00 00 00 00 if r2 >= r3 goto +20
// CHECK: 6d 54 13 00 00 00 00 00 if r4 s> r5 goto +19
// CHECK: 7d 65 12 00 00 00 00 00 if r5 s>= r6 goto +18
if r6 < r7 goto Llabel0 // BPF_JLT | BPF_X
if r7 <= r8 goto Llabel0 // BPF_JLE | BPF_X
if r8 s< r9 goto Llabel0 // BPF_JSLT | BPF_X
if r9 s<= r10 goto Llabel0 // BPF_JSLE | BPF_X
// CHECK: ad 76 11 00 00 00 00 00 if r6 < r7 goto +17
// CHECK: bd 87 10 00 00 00 00 00 if r7 <= r8 goto +16
// CHECK: cd 98 0f 00 00 00 00 00 if r8 s< r9 goto +15
// CHECK: dd a9 0e 00 00 00 00 00 if r9 s<= r10 goto +14
if r0 == 0 goto Llabel0 // BPF_JEQ | BPF_K
if r3 != -1 goto Llabel0 // BPF_JNE | BPF_K
// CHECK: 15 00 0d 00 00 00 00 00 if r0 == 0 goto +13
// CHECK: 55 03 0c 00 ff ff ff ff if r3 != -1 goto +12
if r1 > 64 goto Llabel0 // BPF_JGT | BPF_K
if r2 >= 0xffffffff goto Llabel0 // BPF_JGE | BPF_K
if r4 s> 0xffffffff goto Llabel0 // BPF_JSGT | BPF_K
if r5 s>= 0x7fffffff goto Llabel0 // BPF_JSGE | BPF_K
// CHECK: 25 01 0b 00 40 00 00 00 if r1 > 64 goto +11
// CHECK: 35 02 0a 00 ff ff ff ff if r2 >= -1 goto +10
// CHECK: 65 04 09 00 ff ff ff ff if r4 s> -1 goto +9
// CHECK: 75 05 08 00 ff ff ff 7f if r5 s>= 2147483647 goto +8
if r6 < 0xff goto Llabel0 // BPF_JLT | BPF_K
if r7 <= 0xffff goto Llabel0 // BPF_JLE | BPF_K
if r8 s< 0 goto Llabel0 // BPF_JSLT | BPF_K
if r9 s<= -1 goto Llabel0 // BPF_JSLE | BPF_K
// CHECK: a5 06 07 00 ff 00 00 00 if r6 < 255 goto +7
// CHECK: b5 07 06 00 ff ff 00 00 if r7 <= 65535 goto +6
// CHECK: c5 08 05 00 00 00 00 00 if r8 s< 0 goto +5
// CHECK: d5 09 04 00 ff ff ff ff if r9 s<= -1 goto +4
// ======== BPF_ALU64 Class ========
r0 += r1 // BPF_ADD | BPF_X
r1 -= r2 // BPF_SUB | BPF_X
r2 *= r3 // BPF_MUL | BPF_X
r3 /= r4 // BPF_DIV | BPF_X
// CHECK: 0f 10 00 00 00 00 00 00 r0 += r1
// CHECK: 1f 21 00 00 00 00 00 00 r1 -= r2
// CHECK: 2f 32 00 00 00 00 00 00 r2 *= r3
// CHECK: 3f 43 00 00 00 00 00 00 r3 /= r4
Llabel0 :
r2 = -r2 // BPF_NEG
r4 |= r5 // BPF_OR | BPF_X
r5 &= r6 // BPF_AND | BPF_X
r6 <<= r7 // BPF_LSH | BPF_X
r7 >>= r8 // BPF_RSH | BPF_X
r8 ^= r9 // BPF_XOR | BPF_X
r9 = r10 // BPF_MOV | BPF_X
r10 s>>= r0 // BPF_ARSH | BPF_X
// CHECK:Llabel0:
// CHECK: 87 02 00 00 00 00 00 00 r2 = -r2
// CHECK: 4f 54 00 00 00 00 00 00 r4 |= r5
// CHECK: 5f 65 00 00 00 00 00 00 r5 &= r6
// CHECK: 6f 76 00 00 00 00 00 00 r6 <<= r7
// CHECK: 7f 87 00 00 00 00 00 00 r7 >>= r8
// CHECK: af 98 00 00 00 00 00 00 r8 ^= r9
// CHECK: bf a9 00 00 00 00 00 00 r9 = r10
// CHECK: cf 0a 00 00 00 00 00 00 r10 s>>= r0
r1 = be16 r1 // BPF_END | BPF_TO_BE
r2 = be32 r2 // BPF_END | BPF_TO_BE
r3 = be64 r3 // BPF_END | BPF_TO_BE
// CHECK: dc 01 00 00 10 00 00 00 r1 = be16 r1
// CHECK: dc 02 00 00 20 00 00 00 r2 = be32 r2
// CHECK: dc 03 00 00 40 00 00 00 r3 = be64 r3
r0 += 1 // BPF_ADD | BPF_K
r1 -= 0x1 // BPF_SUB | BPF_K
r2 *= -4 // BPF_MUL | BPF_K
r3 /= 5 // BPF_DIV | BPF_K
// CHECK: 07 00 00 00 01 00 00 00 r0 += 1
// CHECK: 17 01 00 00 01 00 00 00 r1 -= 1
// CHECK: 27 02 00 00 fc ff ff ff r2 *= -4
// CHECK: 37 03 00 00 05 00 00 00 r3 /= 5
r4 |= 0xff // BPF_OR | BPF_K
r5 &= 0xFF // BPF_AND | BPF_K
r6 <<= 63 // BPF_LSH | BPF_K
r7 >>= 32 // BPF_RSH | BPF_K
r8 ^= 0 // BPF_XOR | BPF_K
r9 = 1 // BPF_MOV | BPF_K
r9 = 0xffffffff // BPF_MOV | BPF_K
r10 s>>= 64 // BPF_ARSH | BPF_K
// CHECK: 47 04 00 00 ff 00 00 00 r4 |= 255
// CHECK: 57 05 00 00 ff 00 00 00 r5 &= 255
// CHECK: 67 06 00 00 3f 00 00 00 r6 <<= 63
// CHECK: 77 07 00 00 20 00 00 00 r7 >>= 32
// CHECK: a7 08 00 00 00 00 00 00 r8 ^= 0
// CHECK: b7 09 00 00 01 00 00 00 r9 = 1
// CHECK: b7 09 00 00 ff ff ff ff r9 = -1
// CHECK: c7 0a 00 00 40 00 00 00 r10 s>>= 64
|
