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
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
|
## This test checks how we handle the --bb-addr-map option on relocatable
## object files.
# RUN: yaml2obj %s -o %t1.o
# RUN: llvm-readobj %t1.o --bb-addr-map | FileCheck %s
# CHECK: BBAddrMap [
# CHECK-NEXT: Function {
# CHECK-NEXT: At: 0x0
# CHECK-NEXT: Name: <?>
# CHECK-NEXT: BB Ranges [
# CHECK-NEXT: {
# CHECK-NEXT: Base Address: 0x0
# CHECK-NEXT: BB Entries [
# CHECK-NEXT: {
# CHECK-NEXT: ID: 0
# CHECK-NEXT: Offset: 0x0
# CHECK-NEXT: Size: 0xF
# CHECK-NEXT: HasReturn: Yes
# CHECK-NEXT: HasTailCall: No
# CHECK-NEXT: IsEHPad: No
# CHECK-NEXT: CanFallThrough: No
# CHECK-NEXT: HasIndirectBranch: No
# CHECK-NEXT: }
# CHECK-NEXT: ]
# CHECK-NEXT: }
# CHECK-NEXT: ]
# CHECK-NEXT: }
# CHECK-NEXT: Function {
# CHECK-NEXT: At: 0x10
# CHECK-NEXT: Name: <?>
# CHECK-NEXT: BB Ranges [
# CHECK-NEXT: {
# CHECK-NEXT: Base Address: 0x10
# CHECK-NEXT: BB Entries [
# CHECK-NEXT: {
# CHECK-NEXT: ID: 0
# CHECK-NEXT: Offset: 0x0
# CHECK-NEXT: Size: 0x11
# CHECK-NEXT: HasReturn: No
# CHECK-NEXT: HasTailCall: No
# CHECK-NEXT: IsEHPad: No
# CHECK-NEXT: CanFallThrough: Yes
# CHECK-NEXT: HasIndirectBranch: No
# CHECK-NEXT: }
# CHECK-NEXT: ]
# CHECK-NEXT: }
# CHECK-NEXT: ]
# CHECK-NEXT: }
# CHECK-NEXT: ]
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_REL
Machine: EM_X86_64
Sections:
- Name: .text
Type: SHT_PROGBITS
Flags: [ SHF_ALLOC, SHF_EXECINSTR ]
- Name: .llvm_bb_addr_map
Type: SHT_LLVM_BB_ADDR_MAP
Link: .text
Entries:
- Version: 2
BBRanges:
- BBEntries:
- ID: 0
AddressOffset: 0x0
Size: 0xF
Metadata: 0x1
- Version: 2
BBRanges:
- BBEntries:
- ID: 0
AddressOffset: 0x0
Size: 0x11
Metadata: 0x8
- Name: .rela.llvm_bb_addr_map
Type: SHT_RELA
Flags: [ SHF_INFO_LINK ]
Link: .symtab
Info: .llvm_bb_addr_map
Relocations:
- Offset: 0x2
Symbol: .text
Type: R_X86_64_64
- Offset: 0x11
Symbol: .text
Type: R_X86_64_64
Addend: 16
Symbols:
- Name: a
Section: .text
Value: 0x0
- Name: c
Section: .text
Value: 0x10
- Name: .text
Type: STT_SECTION
Section: .text
## Check that if we have a relocatable file and no relocation section for
## a SHT_LLVM_BB_ADDR_MAP section, we give the appropriate warnings.
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_REL
Machine: EM_X86_64
Sections:
- Name: .text
Type: SHT_PROGBITS
Flags: [ SHF_ALLOC, SHF_EXECINSTR ]
- Name: .llvm_bb_addr_map
Type: SHT_LLVM_BB_ADDR_MAP
Link: .text
# RUN: yaml2obj %s --docnum=2 -o %t2.o
# RUN: llvm-readobj %t2.o --bb-addr-map 2>&1 | FileCheck %s --check-prefix=NO-RELA -DFILE=%t2.o
# NO-RELA: warning: '[[FILE]]': unable to get relocation section for SHT_LLVM_BB_ADDR_MAP section with index 2
## Check that we get a warning if we expect a relocation and it is not present.
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_REL
Machine: EM_X86_64
Sections:
- Name: .text
Type: SHT_PROGBITS
Flags: [ SHF_ALLOC, SHF_EXECINSTR ]
- Name: .llvm_bb_addr_map
Type: SHT_LLVM_BB_ADDR_MAP
Link: .text
Entries:
- Version: 2
BBRanges:
- BBEntries:
- ID: 0
AddressOffset: 0x0
Size: 0xF
Metadata: 0x1
- Name: .rela.llvm_bb_addr_map
Type: SHT_RELA
Flags: [ SHF_INFO_LINK ]
Info: .llvm_bb_addr_map
# RUN: yaml2obj %s --docnum=3 -o %t3.o
# RUN: llvm-readobj %t3.o --bb-addr-map 2>&1 | FileCheck %s --check-prefix=MISSING-RELOCATION -DFILE=%t3.o
# MISSING-RELOCATION: warning: '[[FILE]]': unable to dump SHT_LLVM_BB_ADDR_MAP section with index 2: failed to get relocation data for offset: 2 in section SHT_LLVM_BB_ADDR_MAP section with index 2
## Check that if we have a missing relocated section, we fail and give the
## appropriate warning.
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_REL
Machine: EM_X86_64
Sections:
- Name: .rela.llvm_bb_addr_map
Type: SHT_RELA
Flags: [ SHF_INFO_LINK ]
Info: 0xFF
# RUN: yaml2obj %s --docnum=4 -o %t4.o
# RUN: llvm-readobj %t4.o --bb-addr-map 2>&1 | FileCheck %s --check-prefix=NO-RELOCATED-SECTION -DFILE=%t4.o
# NO-RELOCATED-SECTION: warning: '[[FILE]]': failed to get SHT_LLVM_BB_ADDR_MAP section(s): SHT_RELA section with index 1: failed to get a relocated section: invalid section index: 255
## Check that if we have an ET_DYN file with a .rela.dyn section, we don't get
## a warning about a missing relocation section and can get the baddrmap data.
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_DYN
Machine: EM_X86_64
Sections:
- Name: .rela.dyn
Type: SHT_RELA
Flags: [ SHF_ALLOC ]
- Name: .llvm_bb_addr_map
Type: SHT_LLVM_BB_ADDR_MAP
Flags: [ SHF_LINK_ORDER ]
Entries:
- Version: 2
BBRanges:
- BaseAddress: 0xF
BBEntries:
- ID: 0
AddressOffset: 0x0
Size: 0xF
Metadata: 0x1
# RUN: yaml2obj %s --docnum=5 -o %t5.o
# RUN: llvm-readobj %t5.o --bb-addr-map 2>&1 | FileCheck %s --check-prefix=ET-DYN-NO-WARNING -DFILE=%t5.o
# ET-DYN-NO-WARNING: BBAddrMap [
# ET-DYN-NO-WARNING: Function {
# ET-DYN-NO-WARNING: At: 0xF
# ET-DYN-NO-WARNING: Name: <?>
# ET-DYN-NO-WARNING: BB Ranges [
# ET-DYN-NO-WARNING: {
# ET-DYN-NO-WARNING: Base Address: 0xF
# ET-DYN-NO-WARNING: BB Entries [
# ET-DYN-NO-WARNING: {
# ET-DYN-NO-WARNING: ID: 0
# ET-DYN-NO-WARNING: Offset: 0x0
# ET-DYN-NO-WARNING: Size: 0xF
# ET-DYN-NO-WARNING: HasReturn: Yes
# ET-DYN-NO-WARNING: HasTailCall: No
# ET-DYN-NO-WARNING: IsEHPad: No
# ET-DYN-NO-WARNING: CanFallThrough: No
# ET-DYN-NO-WARNING: HasIndirectBranch: No
# ET-DYN-NO-WARNING: }
# ET-DYN-NO-WARNING: ]
# ET-DYN-NO-WARNING: }
# ET-DYN-NO-WARNING: ]
# ET-DYN-NO-WARNING: }
# ET-DYN-NO-WARNING: ]
|
