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301f3b0628
This allows to customize this field for "implicit" sections properly. Differential revision: https://reviews.llvm.org/D63487 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363777 91177308-0d34-0410-b5e6-96231b3b80d8
199 lines
4.9 KiB
YAML
199 lines
4.9 KiB
YAML
## For implicit dynamic symbol table sections, `Size` and/or `Content`
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## fields can also be specified in YAML. Here we test the behavior in
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## different cases.
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## When no `Size` or `Content` is specified for a dynamic symbol table section,
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## yaml2obj writes the default content.
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# RUN: yaml2obj --docnum=1 %s -o %t1
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# RUN: llvm-readelf %t1 --dyn-symbols | FileCheck %s --check-prefix=CASE1
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# CASE1: Symbol table '.dynsym' contains 2 entries:
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# CASE1-NEXT: Num: Value Size Type Bind Vis Ndx Name
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# CASE1-NEXT: 0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND
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# CASE1-NEXT: 1: 0000000000000000 0 NOTYPE GLOBAL DEFAULT UND foo
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# CASE1-EMPTY:
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--- !ELF
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FileHeader:
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Class: ELFCLASS64
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Data: ELFDATA2LSB
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Type: ET_DYN
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Machine: EM_X86_64
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Sections:
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- Name: .dynsym
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Type: SHT_DYNSYM
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DynamicSymbols:
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- Name: foo
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Binding: STB_GLOBAL
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## Specifying both `Size` and symbols at the same time is not allowed.
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# RUN: not yaml2obj --docnum=2 %s -o %t2 2>&1 | FileCheck %s --check-prefix=CASE2
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# CASE2: error: Cannot specify both `Size` and `DynamicSymbols` for symbol table section '.dynsym'.
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--- !ELF
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FileHeader:
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Class: ELFCLASS64
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Data: ELFDATA2LSB
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Type: ET_DYN
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Machine: EM_X86_64
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Sections:
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- Name: .dynsym
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Type: SHT_DYNSYM
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Size: 0x100
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DynamicSymbols:
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- Name: foo
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Binding: STB_GLOBAL
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## Specifying both `Content` and symbols at the same time is not allowed.
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# RUN: not yaml2obj --docnum=3 %s -o %t3 2>&1 | FileCheck %s --check-prefix=CASE3
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# CASE3: error: Cannot specify both `Content` and `DynamicSymbols` for symbol table section '.dynsym'.
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--- !ELF
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FileHeader:
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Class: ELFCLASS64
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Data: ELFDATA2LSB
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Type: ET_DYN
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Machine: EM_X86_64
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Sections:
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- Name: .dynsym
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Type: SHT_DYNSYM
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Content: "00"
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DynamicSymbols:
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- Name: foo
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Binding: STB_GLOBAL
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## Check we can use just `Content` to emit custom data in the symbol table section.
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# RUN: yaml2obj --docnum=4 %s -o %t4
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# RUN: llvm-readobj --section-data -S %t4 | FileCheck %s --check-prefix=CASE4
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# CASE4: Name: .dynsym
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# CASE4-NEXT: Type: SHT_DYNSYM
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# CASE4-NEXT: Flags [
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# CASE4-NEXT: SHF_ALLOC
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# CASE4-NEXT: ]
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# CASE4-NEXT: Address: 0x0
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# CASE4-NEXT: Offset: 0x180
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# CASE4-NEXT: Size: 2
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# CASE4-NEXT: Link: 0
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# CASE4-NEXT: Info: 1
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# CASE4-NEXT: AddressAlignment: 0
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# CASE4-NEXT: EntrySize: 24
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# CASE4-NEXT: SectionData (
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# CASE4-NEXT: 0000: 0123
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# CASE4-NEXT: )
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--- !ELF
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FileHeader:
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Class: ELFCLASS64
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Data: ELFDATA2LSB
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Type: ET_DYN
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Machine: EM_X86_64
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Sections:
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- Name: .dynsym
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Type: SHT_DYNSYM
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Content: "0123"
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## Check we can use just `Size` to emit custom data filled with zeroes
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## in the symbol table section.
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# RUN: yaml2obj --docnum=5 %s -o %t5
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# RUN: llvm-readobj --section-data -S %t5 | FileCheck %s --check-prefix=CASE5
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# CASE5: Name: .dynsym
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# CASE5-NEXT: Type: SHT_DYNSYM
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# CASE5-NEXT: Flags [
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# CASE5-NEXT: SHF_ALLOC
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# CASE5-NEXT: ]
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# CASE5-NEXT: Address: 0x0
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# CASE5-NEXT: Offset: 0x180
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# CASE5-NEXT: Size: 5
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# CASE5-NEXT: Link: 0
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# CASE5-NEXT: Info: 1
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# CASE5-NEXT: AddressAlignment: 0
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# CASE5-NEXT: EntrySize: 24
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# CASE5-NEXT: SectionData (
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# CASE5-NEXT: 0000: 00000000 00
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# CASE5-NEXT: )
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--- !ELF
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FileHeader:
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Class: ELFCLASS64
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Data: ELFDATA2LSB
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Type: ET_DYN
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Machine: EM_X86_64
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Sections:
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- Name: .dynsym
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Type: SHT_DYNSYM
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Size: 5
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## Check we can specify both `Size` and `Content` when size is greater
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## than content size. In this case zeroes are added as padding
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## after after the specified content.
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# RUN: yaml2obj --docnum=6 %s -o %t6
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# RUN: llvm-readobj %t6 --section-data -S | FileCheck %s --check-prefix=CASE6
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# CASE6: Name: .dynsym
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# CASE6-NEXT: Type: SHT_DYNSYM
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# CASE6-NEXT: Flags [
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# CASE6-NEXT: SHF_ALLOC
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# CASE6-NEXT: ]
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# CASE6-NEXT: Address: 0x0
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# CASE6-NEXT: Offset: 0x180
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# CASE6-NEXT: Size: 4
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# CASE6-NEXT: Link: 0
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# CASE6-NEXT: Info: 1
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# CASE6-NEXT: AddressAlignment: 0
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# CASE6-NEXT: EntrySize: 24
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# CASE6-NEXT: SectionData (
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# CASE6-NEXT: 0000: 01230000
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# CASE6-NEXT: )
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--- !ELF
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FileHeader:
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Class: ELFCLASS64
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Data: ELFDATA2LSB
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Type: ET_DYN
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Machine: EM_X86_64
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Sections:
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- Name: .dynsym
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Type: SHT_DYNSYM
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Content: "0123"
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Size: 4
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## Check we can specify both `Size` and `Content` when size is
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## equal to content size.
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# RUN: yaml2obj --docnum=7 %s -o %t7
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# RUN: llvm-readobj --section-data -S %t7 | FileCheck %s --check-prefix=CASE7
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# CASE7: Name: .dynsym
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# CASE7-NEXT: Type: SHT_DYNSYM
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# CASE7-NEXT: Flags [
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# CASE7-NEXT: SHF_ALLOC
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# CASE7-NEXT: ]
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# CASE7-NEXT: Address: 0x0
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# CASE7-NEXT: Offset: 0x180
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# CASE7-NEXT: Size: 2
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# CASE7-NEXT: Link: 0
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# CASE7-NEXT: Info: 1
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# CASE7-NEXT: AddressAlignment: 0
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# CASE7-NEXT: EntrySize: 24
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# CASE7-NEXT: SectionData (
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# CASE7-NEXT: 0000: 0123
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# CASE7-NEXT: )
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--- !ELF
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FileHeader:
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Class: ELFCLASS64
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Data: ELFDATA2LSB
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Type: ET_DYN
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Machine: EM_X86_64
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Sections:
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- Name: .dynsym
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Type: SHT_DYNSYM
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Content: "0123"
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Size: 2
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