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
179
180
181
182
183
184
185
186
187
188
189
190
191
192
|
# Tests RISC-V relocations. We provide a .debug_info section with multiple
# DW_AT_high_pc entries (that's one of the attributes for which relocations are
# resolved by llvm-dwarfdump) and we add a relocation for each of them.
#
# RUN: yaml2obj %s | llvm-dwarfdump - | FileCheck %s
# To add more tests you need to modify the Content of the .debug_abbrev and
# .debug_info sections. To do that create a test.s which matches the assembly
# code below, run the command that follows and copy over the "Content" value of
# the respective sections:
#
# ```
# $ cat test.s
# .section .debug_abbrev,"",@progbits
# .byte 1 # Abbreviation Code
# .byte 0x11 # DW_TAG_compile_unit
# .byte 0 # DW_CHILDREN_no
#
# # Add a DW_AT_high_pc for each relocation we test.
# .rept 14 # (UPDATE HERE)
# .byte 0x12 # DW_AT_high_pc
# .byte 0x01 # DW_FORM_addr
# .endr
#
# .byte 0 # EOM(1)
# .byte 0 # EOM(2)
# .byte 0 # EOM(3)
#
# .section .debug_info,"",@progbits
# .4byte 2+4+1+1+8*14 # Length of Unit (UPDATE HERE)
# .2byte 4 # DWARF version number
# .4byte .debug_abbrev # Offset Into Abbrev. Section
# .byte 8 # Address Size (in bytes)
# .byte 1 # Abbrev 1
# .8byte 0x00000000000042 # Test 1
# .8byte 0x00000000000042 # Test 2
# .8byte 0x00000000000042 # Test 3
# .8byte 0x00000000000042 # Test 4
# .8byte 0x00000000000042 # Test 5
# .8byte 0x00000000000042 # Test 6
# .8byte 0x00000000000042 # Test 7
# .8byte 0x00000000000042 # Test 8
# .8byte 0x00000000004242 # Test 9
# .8byte 0x00000000004242 # Test 10
# .8byte 0x00000042424242 # Test 11
# .8byte 0x00000042424242 # Test 12
# .8byte 0x42424242424242 # Test 13
# .8byte 0x42424242424242 # Test 14
# $ llvm-mc test.s -filetype obj -triple riscv64 -o - | obj2yaml
# ```
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_REL
Machine: EM_RISCV
Sections:
- Name: .debug_abbrev
Type: SHT_PROGBITS
Content: 01110012011201120112011201120112011201120112011201120112011201000000
- Name: .debug_info
Type: SHT_PROGBITS
Content: 78000000040000000000080142000000000000004200000000000000420000000000000042000000000000004200000000000000420000000000000042000000000000004200000000000000424200000000000042420000000000004242424200000000424242420000000042424242424242004242424242424200
- Name: .rela.debug_info
Type: SHT_RELA
Flags: [ SHF_INFO_LINK ]
Link: .symtab
EntSize: 0x0000000000000018
Info: .debug_info
Relocations:
# Test 1
# 0x42 with R_RISCV_NONE(0x1) = 0x42
# CHECK: DW_AT_high_pc (0x0000000000000042)
- Offset: 0x000000000000000C # 0xC + 8*0
Symbol: v1
Type: R_RISCV_NONE
# Test 2
# 0x42 with R_RISCV_32(0xFFFFFFFFFFFFFFFF) = 0x00000000FFFFFFFF
# CHECK-NEXT: DW_AT_high_pc (0x00000000ffffffff)
- Offset: 0x0000000000000014 # 0xC + 8*1
Symbol: vFFFFFFFFFFFFFFFF
Type: R_RISCV_32
# Test 3
# 0x42 with R_RISCV_32_PCREL(0x4) = 0x4-0x1C = 0x00000000FFFFFFE8
# CHECK-NEXT: DW_AT_high_pc (0x00000000ffffffe8)
- Offset: 0x000000000000001C # 0xC + 8*2
Symbol: v4
Type: R_RISCV_32_PCREL
# Test 4
# 0x42 with R_RISCV_64(0xFFFFFFFFFFFFFFFF) = 0xFFFFFFFFFFFFFFFF
# CHECK-NEXT: DW_AT_high_pc (0xffffffffffffffff)
- Offset: 0x0000000000000024 # 0xC + 8*3
Symbol: vFFFFFFFFFFFFFFFF
Type: R_RISCV_64
# Test 5
# 0x42 with R_RISCV_SET6(1) = 0x41
# CHECK-NEXT: DW_AT_high_pc (0x0000000000000041)
- Offset: 0x000000000000002C # 0xC + 8*4
Symbol: v1
Type: R_RISCV_SET6
# Test 6
# 0x42 with R_RISCV_SUB6(0x4) = 0x7E
# CHECK-NEXT: DW_AT_high_pc (0x000000000000007e)
- Offset: 0x0000000000000034 # 0xC + 8*5
Symbol: v4
Type: R_RISCV_SUB6
# Test 7
# 0x42 with R_RISCV_ADD8(0x04020103) = 0x45
# CHECK-NEXT: DW_AT_high_pc (0x0000000000000045)
- Offset: 0x000000000000003C # 0xC + 8*6
Symbol: v04020103
Type: R_RISCV_ADD8
# Test 8
# 0x42 with R_RISCV_SUB8(0x04020103) = 0x3F
# CHECK-NEXT: DW_AT_high_pc (0x000000000000003f)
- Offset: 0x0000000000000044 # 0xC + 8*7
Symbol: v04020103
Type: R_RISCV_SUB8
# Test 9
# 0x4242 with R_RISCV_ADD16(0x04020103) = 0x4345
# CHECK-NEXT: DW_AT_high_pc (0x0000000000004345)
- Offset: 0x000000000000004C # 0xC + 8*8
Symbol: v04020103
Type: R_RISCV_ADD16
# Test 10
# 0x4242 with R_RISCV_SUB16(0x04020103) = 0x413F
# CHECK-NEXT: DW_AT_high_pc (0x000000000000413f)
- Offset: 0x0000000000000054 # 0xC + 8*9
Symbol: v04020103
Type: R_RISCV_SUB16
# Test 11
# 0x42424242 with R_RISCV_ADD32(0x04020103) = 0x46444345
# CHECK-NEXT: DW_AT_high_pc (0x0000000046444345)
- Offset: 0x000000000000005C # 0xC + 8*10
Symbol: v04020103
Type: R_RISCV_ADD32
# Test 12
# 0x42424242 with R_RISCV_SUB32(0x04020103) = 0x3E40413F
# CHECK-NEXT: DW_AT_high_pc (0x000000003e40413f)
- Offset: 0x0000000000000064 # 0xC + 8*11
Symbol: v04020103
Type: R_RISCV_SUB32
# Test 13
# 0x0042424242424242 with R_RISCV_ADD64(0x0100000000000000) = 0x0142424242424242
# CHECK-NEXT: DW_AT_high_pc (0x0142424242424242)
- Offset: 0x000000000000006C # 0xC + 8*12
Symbol: v0100000000000000
Type: R_RISCV_ADD64
# Test 14
# 0x0042424242424242 with R_RISCV_SUB64(0x0100000000000000) = 0xFF42424242424242
# CHECK-NEXT: DW_AT_high_pc (0xff42424242424242)
- Offset: 0x0000000000000074 # 0xC + 8*13
Symbol: v0100000000000000
Type: R_RISCV_SUB64
Symbols:
- Name: v1
Type: STT_SECTION
Section: .debug_info
Value: 0x0000000000000001
- Name: v4
Type: STT_SECTION
Section: .debug_info
Value: 0x0000000000000004
- Name: v04020103
Type: STT_SECTION
Section: .debug_info
Value: 0x0000000004020103
- Name: vFFFFFFFFFFFFFFFF
Type: STT_SECTION
Section: .debug_info
Value: 0xFFFFFFFFFFFFFFFF
- Name: v0100000000000000
Type: STT_SECTION
Section: .debug_info
Value: 0x0100000000000000
...
|
