llvm-project/llvm/test/tools/yaml2obj/ELF/section-link.yaml
Georgii Rymar a6436b0b3a [yaml2obj] - Make the 'Machine' key optional.
Currently we have to set 'Machine' to something in our
YAML descriptions. Usually we use 'EM_X86_64' for 64-bit targets
and 'EM_386' for 32-bit targets. At the same time, in fact, in most
cases our tests do not need a machine type and we can use
'EM_NONE'.

This is cleaner, because avoids the need of using a particular machine.

In this patch I've made the 'Machine' key optional (the default value,
when it is not specified is `EM_NONE`) and removed it (where possible)
from yaml2obj, obj2yaml and llvm-readobj tests.

There are few tests left where I decided not to remove it, because
I didn't want to touch CHECK lines or doing anything more complex
than a removing a "Machine: *" line and formatting lines around.

Differential revision: https://reviews.llvm.org/D86202
2020-08-20 11:40:51 +03:00

99 lines
2.4 KiB
YAML

# RUN: yaml2obj --docnum=1 %s -o %t1
# RUN: llvm-readobj --sections %t1 | FileCheck %s
# CHECK: Name: .text
# CHECK-NEXT: Type: SHT_PROGBITS
# CHECK-NEXT: Flags [
# CHECK-NEXT: SHF_ALLOC
# CHECK-NEXT: SHF_EXECINSTR
# CHECK-NEXT: ]
# CHECK-NEXT: Address:
# CHECK-NEXT: Offset:
# CHECK-NEXT: Size:
# CHECK-NEXT: Link: 12345
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_REL
Sections:
- Name: .text
Type: SHT_PROGBITS
Flags: [ SHF_ALLOC, SHF_EXECINSTR ]
Link: 12345
## Check we report an error when an unknown section is referenced via a Link field.
# RUN: not yaml2obj --docnum=2 %s 2>&1 | FileCheck %s --check-prefix=ERR
# ERR: error: unknown section referenced: '.unknown1' by YAML section '.foo'
# ERR-NEXT: error: unknown section referenced: '.unknown2' by YAML section '(index 2)'
# ERR-NEXT: error: unknown section referenced: '.unknown3' by YAML section '.bar'
# ERR-NEXT: error: unknown section referenced: '.unknown4' by YAML section '(index 4)'
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_REL
Sections:
- Name: .foo
Type: SHT_PROGBITS
Link: .unknown1
- Type: SHT_PROGBITS
Link: .unknown2
- Name: .bar
Type: SHT_PROGBITS
Link: .unknown3
- Type: SHT_PROGBITS
Link: .unknown4
## Check we link SHT_GROUP to a symbol table by default if it exists.
## Also, check we can set an arbitrary value for sh_link.
# RUN: yaml2obj --docnum=3 %s -o %t3
# RUN: llvm-readobj --sections %t3 | FileCheck %s --check-prefix=GROUP-LINK
# GROUP-LINK: Name: .group1
# GROUP-LINK: Link:
# GROUP-LINK-SAME: 3
# GROUP-LINK: Name: .group2
# GROUP-LINK: Link:
# GROUP-LINK-SAME: 255
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_REL
Sections:
- Name: .group1
Type: SHT_GROUP
Members:
- Name: .group2
Type: SHT_GROUP
Link: 0xFF
Members:
Symbols: []
## Check we set SHT_GROUP's link value to 0 when there is no symbol table.
# RUN: yaml2obj --docnum=4 %s -o %t4
# RUN: llvm-readobj --sections %t4 | FileCheck %s --check-prefix=GROUP-LINK-NOSYMTAB
# GROUP-LINK-NOSYMTAB: Name: .group
# GROUP-LINK-NOSYMTAB: Link:
# GROUP-LINK-NOSYMTAB-SAME: 0
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_REL
Sections:
- Name: .group
Type: SHT_GROUP
Members: