81 lines
2.8 KiB
Plaintext
81 lines
2.8 KiB
Plaintext
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# RUN: yaml2obj %s -o %t
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# RUN: llvm-objcopy --remove-section=.text.bar %t %t1
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# RUN: llvm-readobj --elf-section-groups %t1 | FileCheck %s
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# In this test the section .text.bar is getting removed, as a result,
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# the indices of the sections which go after .text.bar will change,
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# thus the fields Link, Info and the content of .group should be updated.
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# CHECK: Name: .group
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# CHECK-NEXT: Index: 1
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# CHECK-NEXT: Link: 3
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# CHECK-NEXT: Info: 2
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# CHECK-NEXT: Type: COMDAT (0x1)
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# CHECK-NEXT: Signature: foo
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# CHECK: .text.foo (2)
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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_REL
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Machine: EM_X86_64
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Sections:
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- Name: .group
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Type: SHT_GROUP
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Link: .symtab
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AddressAlign: 0x0000000000000004
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Info: foo
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Members:
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- SectionOrType: GRP_COMDAT
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- SectionOrType: .text.foo
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- Name: .text.bar
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Type: SHT_PROGBITS
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Flags: [ SHF_ALLOC, SHF_EXECINSTR ]
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AddressAlign: 0x0000000000000010
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- Name: .text.foo
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Type: SHT_PROGBITS
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Flags: [ SHF_ALLOC, SHF_EXECINSTR, SHF_GROUP ]
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AddressAlign: 0x0000000000000010
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Symbols:
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- Name: .text.bar
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Type: STT_SECTION
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Section: .text.bar
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- Name: .text.foo
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Type: STT_SECTION
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Section: .text.foo
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- Name: bar
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Type: STT_FUNC
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Section: .text.bar
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Size: 0x0000000000000000
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Binding: STB_WEAK
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- Name: foo
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Type: STT_FUNC
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Section: .text.foo
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Size: 0x0000000000000000
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Binding: STB_WEAK
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## This checks that tool will emit an error when trying to remove the symbol
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## table when we have a group section linked with symtab.
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# RUN: not llvm-objcopy -R .symtab %t %t2 2>&1 | FileCheck %s --check-prefix=ERR -DINPUT=%t
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# ERR: error: '[[INPUT]]': section '.symtab' cannot be removed because it is referenced by the group section '.group'
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## The '.symtab' section could be removed using --allow-broken-links option.
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# RUN: llvm-objcopy --allow-broken-links -R .symtab %t %t3
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# RUN: llvm-readelf --sections %t3 | FileCheck %s --check-prefix=SECTIONS
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# SECTIONS: There are 6 section headers
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# SECTIONS: Name Type Address Off Size ES Flg Lk Inf
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# SECTIONS-NEXT: NULL
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# SECTIONS-NEXT: .group {{.+}} {{.+}} {{.+}} {{.+}} {{.+}} 0 0
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# SECTIONS-NEXT: .text.bar
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# SECTIONS-NEXT: .text.foo
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# SECTIONS-NEXT: .strtab
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# SECTIONS-NEXT: .shstrtab
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## Show that llvm-objcopy can handle a group section with a zero sh_link and
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## sh_info fields.
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# RUN: llvm-objcopy --allow-broken-links -R .symtab %t3 %t4
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# RUN: cmp %t3 %t4
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