forked from OSchip/llvm-project
[yaml2obj][obj2yaml][Object][test] - Improve testing of relocation types.
The intention was to remove the `Object/X86/yaml-elf-x86-rel-broken.yaml test`, This test is at the wrong place. `yaml-elf-x86-rel-broken.yaml` was introduced in rG892c6c86ea25dc97668ff1f1b7bf1108e85fa5ec to check that yaml2obj can use an arbitrary `Hex32` value as a relocation type. We have tests that check the similar functionality. I've improved them and removed the `yaml-elf-x86-rel-broken.yaml` Differential revision: https://reviews.llvm.org/D75679
This commit is contained in:
Georgii Rymar
parent
92c0cda928
commit
7391885d5c
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# RUN: yaml2obj %s -o %t
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# RUN: obj2yaml %t | FileCheck %s
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# CHECK: Relocations:
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# CHECK-NEXT: - Offset:
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# CHECK-NEXT: Symbol:
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# CHECK-NEXT: Type: 0x000000FF
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!ELF
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FileHeader:
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Class: ELFCLASS32
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Data: ELFDATA2LSB
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Type: ET_REL
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Machine: EM_386
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Sections:
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- Type: SHT_PROGBITS
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Name: .text
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Flags: [ SHF_ALLOC, SHF_EXECINSTR ]
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AddressAlign: 0x04
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Content: 0000000000000000
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- Type: SHT_REL
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Name: .rel.text
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Link: .symtab
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Info: .text
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AddressAlign: 0x04
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Relocations:
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- Offset: 0
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Symbol: main
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Type: 0xFF
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Symbols:
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- Name: main
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Binding: STB_GLOBAL
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## Show how obj2yaml dumps relocation types.
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## Show that obj2yaml is able to dump relocation types when `e_machine` kind is unknown.
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# RUN: yaml2obj %s -o %t1 -DMACHINE=0x1234
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# RUN: obj2yaml %t1 | FileCheck %s -DMACHINE=0x1234 -DFIRST=0x00000000 -DSECOND=0x00000001
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# CHECK: --- !ELF
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# CHECK-NEXT: FileHeader:
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# CHECK-NEXT: Class: ELFCLASS64
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# CHECK-NEXT: Data: ELFDATA2MSB
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# CHECK-NEXT: Type: ET_REL
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# CHECK-NEXT: Machine: [[MACHINE]]
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# CHECK-NEXT: Sections:
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# CHECK-NEXT: - Name: .rela.text
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# CHECK-NEXT: Type: SHT_RELA
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# CHECK-NEXT: EntSize: 0x0000000000000018
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# CHECK-NEXT: Relocations:
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# CHECK-NEXT: - Offset: 0x0000000000000009
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# CHECK-NEXT: Type: [[FIRST]]
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# CHECK-NEXT: - Offset: 0x0000000000000008
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# CHECK-NEXT: Type: [[SECOND]]
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# CHECK-NEXT: - Offset: 0x0000000000000007
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# CHECK-NEXT: Type: 0x0000007F
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# CHECK-NEXT: - Offset: 0x0000000000000006
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# CHECK-NEXT: Type: 0x000000FF
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# CHECK-NEXT: ...
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## Show how obj2yaml dumps relocation types when `e_machine` kind is known.
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## In this case unknown relocation types are dumped as hex values.
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## All known relocation types are printed as strings representing relocation names.
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# RUN: yaml2obj %s -o %t2 -DMACHINE=EM_X86_64
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# RUN: obj2yaml %t2 | FileCheck %s -DMACHINE=EM_X86_64 -DFIRST=R_X86_64_NONE -DSECOND=R_X86_64_64
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--- !ELF
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FileHeader:
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Class: ELFCLASS64
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Data: ELFDATA2MSB
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Type: ET_REL
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Machine: [[MACHINE]]
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Sections:
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- Name: .rela.text
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Type: SHT_RELA
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Relocations:
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## Test a few noticeable possible values: 0, 1, max(int8_t)=127, max(uint8_t)=0xFF=-1
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- Offset: 0x9
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Type: 0x0
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- Offset: 0x8
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Type: 0x1
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- Offset: 0x7
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Type: 0x7F
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- Offset: 0x6
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Type: 0xFF
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## Show that obj2yaml is able to dump relocations when `e_machine` is unknown.
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# RUN: yaml2obj %s -o %t1
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# RUN: obj2yaml %t1 | FileCheck %s
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# CHECK: --- !ELF
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# CHECK-NEXT: FileHeader:
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# CHECK-NEXT: Class: ELFCLASS64
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# CHECK-NEXT: Data: ELFDATA2MSB
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# CHECK-NEXT: Type: ET_REL
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# CHECK-NEXT: Machine: 0x1234
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# CHECK-NEXT: Sections:
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# CHECK-NEXT: - Name: .rela.text
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# CHECK-NEXT: Type: SHT_RELA
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# CHECK-NEXT: EntSize: 0x0000000000000018
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# CHECK-NEXT: Relocations:
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# CHECK-NEXT: - Offset: 0x0000000000000001
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# CHECK-NEXT: Type: 0x00000002
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# CHECK-NEXT: - Offset: 0x0000000000000003
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# CHECK-NEXT: Type: 0x00000004
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--- !ELF
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FileHeader:
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Class: ELFCLASS64
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Data: ELFDATA2MSB
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Type: ET_REL
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Machine: 0x1234
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Sections:
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- Name: .rela.text
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Type: SHT_RELA
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Relocations:
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- Offset: 0x1
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Type: 0x2
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- Offset: 0x3
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Type: 0x4
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## Here we test that an arbitrary hex value can be used for a relocation type.
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## Show that yaml2obj is able to produce relocations for an unknown e_machine kind properly.
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# RUN: yaml2obj %s -o %t1 -DMACHINE=0x1234
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# RUN: llvm-readelf %t1 --relocations | FileCheck %s -DFIRST=Unknown -DSECOND=Unknown
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# CHECK: Relocation section '.rela.text' at offset 0x40 contains 4 entries:
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# CHECK: Offset Info Type
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# CHECK-NEXT: 0000000000000009 0000000000000000 [[FIRST]] 0
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# CHECK-NEXT: 0000000000000008 0000000000000001 [[SECOND]] 0
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# CHECK-NEXT: 0000000000000007 000000000000007f Unknown 0
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# CHECK-NEXT: 0000000000000006 00000000000000ff Unknown 0
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## Show that yaml2obj is able to produce relocations for an arbitrary known e_machine kind properly.
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# RUN: yaml2obj %s -o %t2 -DMACHINE=EM_X86_64
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# RUN: llvm-readelf %t2 --relocations | FileCheck %s -DFIRST=R_X86_64_NONE -DSECOND=R_X86_64_64
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--- !ELF
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FileHeader:
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Class: ELFCLASS64
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Data: ELFDATA2MSB
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Type: ET_REL
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Machine: [[MACHINE]]
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Sections:
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- Name: .rela.text
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Type: SHT_RELA
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Relocations:
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## Test a few noticeable possible values: 0, 1, max(int8_t)=127, max(uint8_t)=0xFF=-1
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- Offset: 0x9
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Type: 0x0
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- Offset: 0x8
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Type: 0x1
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- Offset: 0x7
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Type: 0x7F
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- Offset: 0x6
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Type: 0xFF
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@ -1,24 +0,0 @@
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## Show that yaml2obj is able to write relocations for an unknown e_machine properly.
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# RUN: yaml2obj %s -o %t1
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# RUN: llvm-readelf %t1 --relocations | FileCheck %s
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# CHECK: Relocation section '.rela.text' at offset 0x40 contains 2 entries:
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# CHECK: Offset Info Type Symbol's Value Symbol's Name + Addend
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# CHECK-NEXT: 0000000000000001 0000000000000002 Unknown 0
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# CHECK-NEXT: 0000000000000003 0000000000000004 Unknown 0
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--- !ELF
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FileHeader:
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Class: ELFCLASS64
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Data: ELFDATA2MSB
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Type: ET_REL
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Machine: 0x1234
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Sections:
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- Name: .rela.text
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Type: SHT_RELA
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Relocations:
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- Offset: 0x1
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Type: 0x2
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- Offset: 0x3
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Type: 0x4
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