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llvm-mirror/test/tools/obj2yaml/ELF/verdef-section.yaml
Georgii Rymar fc516b0eae [yaml2obj/obj2yaml] - Improve dumping/creating of ELF versioning sections.
This makes the following improvements.

For `SHT_GNU_versym`:
 * yaml2obj: set `sh_link` to index of `.dynsym` section automatically.
For `SHT_GNU_verdef`:
 * yaml2obj: set `sh_link` to index of `.dynstr` section automatically.
 * yaml2obj: set `sh_info` field automatically.
 * obj2yaml: don't dump the `Info` field when its value matches the number of version definitions.
For `SHT_GNU_verneed`:
 * yaml2obj: set `sh_link` to index of `.dynstr` section automatically.
 * yaml2obj: set `sh_info` field automatically.
 * obj2yaml: don't dump the `Info` field when its value matches the number of version dependencies.

Also, simplifies few test cases.

Differential revision: https://reviews.llvm.org/D94956
2021-01-21 10:36:48 +03:00

84 lines
2.5 KiB
YAML

## Check how we dump SHT_GNU_verdef sections.
## Check we don't dump the `Info` field when its value is equal
## to the number of version definitions.
# RUN: yaml2obj %s -o %t
# RUN: obj2yaml %t | FileCheck %s
# CHECK: - Name: .gnu.version_d
# CHECK-NEXT: Type: SHT_GNU_verdef
# CHECK-NEXT: Flags: [ SHF_ALLOC ]
# CHECK-NEXT: Address: 0x230
# CHECK-NEXT: Link: .dynstr
# CHECK-NEXT: AddressAlign: 0x4
# INFO-NEXT: Info: 0x4
# CHECK-NEXT: Entries:
# CHECK-NEXT: - Names:
# CHECK-NEXT: - VERSION_0
# CHECK-NEXT: - Flags: 2
# CHECK-NEXT: VersionNdx: 2
# CHECK-NEXT: Hash: 108387921
# CHECK-NEXT: Names:
# CHECK-NEXT: - VERSION_1
# CHECK-NEXT: - Flags: 3
# CHECK-NEXT: VersionNdx: 3
# CHECK-NEXT: Hash: 108387922
# CHECK-NEXT: Names:
# CHECK-NEXT: - VERSION_2
# CHECK-NEXT: - VERSION_3
# CHECK-NEXT: - VERSION_4
# CHECK-NEXT: - Name:
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_DYN
Sections:
- Name: .gnu.version_d
Type: SHT_GNU_verdef
Flags: [ SHF_ALLOC ]
Address: 0x230
AddressAlign: 0x4
Info: [[INFO=<none>]]
Entries:
## An entry that has all fields explicitly set to their default values.
## Used to check that we don't dump them.
- Version: [[VERSION=1]]
Flags: 0
VersionNdx: 0
Hash: 0
Names:
- VERSION_0
## An entry with arbitrary values.
- Flags: 2
VersionNdx: 2
Hash: 108387921
Names:
- VERSION_1
## Another entry with arbitrary values and version predecessors.
- Flags: 3
VersionNdx: 3
Hash: 108387922
Names:
- VERSION_2
- VERSION_3
- VERSION_4
## Needed to emit the .dynstr section.
DynamicSymbols: []
## Check we dump the `Info` field when its value is not equal
## to the number of version definitions.
# RUN: yaml2obj %s -DINFO=0x4 -o %t.info
# RUN: obj2yaml %t.info | FileCheck %s --check-prefixes=CHECK,INFO
## Document that we are not able to dump a version definition which
## has a version revision (vd_version) that is not equal to 1.
# RUN: yaml2obj %s -DVERSION=2 -o %t.version
# RUN: not obj2yaml %t.version 2>&1 | \
# RUN: FileCheck %s -DFILE=%t.version --check-prefix=VERSION-ERR
# VERSION-ERR: Error reading file: [[FILE]]: invalid SHT_GNU_verdef section version: 2