a7a447be0f
Imagine we have a YAML declaration of few sections: `foo1`, `<unnamed 2>`, `foo3`, `foo4`. To put them into segment we can do (1*): ``` Sections: - Section: foo1 - Section: foo4 ``` or we can use (2*): ``` Sections: - Section: foo1 - Section: foo3 - Section: foo4 ``` or (3*) : ``` Sections: - Section: foo1 ## "(index 2)" here is a name that we automatically created for a unnamed section. - Section: (index 2) - Section: foo3 - Section: foo4 ``` It looks really confusing that we don't have to list all of sections. At first I've tried to make this rule stricter and report an error when there is a gap (i.e. when a section is included into segment, but not listed explicitly). This did not work perfect, because such approach conflicts with unnamed sections/fills (see (3*)). This patch drops "Sections" key and introduces 2 keys instead: `FirstSec` and `LastSec`. Both are optional. Differential revision: https://reviews.llvm.org/D90458
75 lines
2.3 KiB
Plaintext
75 lines
2.3 KiB
Plaintext
# RUN: yaml2obj %s -o %t
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# RUN: llvm-objcopy --strip-all-gnu %t %t2
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# RUN: llvm-strip --strip-all-gnu %t -o %t3
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# RUN: llvm-readobj --file-headers --sections %t2 | FileCheck %s
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# RUN: cmp %t2 %t3
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# Show that the debug section in a segment was removed, to match GNU.
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# First validate that the offset in use is correct.
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# RUN: llvm-objcopy %t %t4
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# RUN: od -t x1 -N 4 -j 120 %t4 | FileCheck %s --ignore-case --check-prefix=COPY-BYTES
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# RUN: od -t x1 -N 4 -j 120 %t2 | FileCheck %s --ignore-case --check-prefix=STRIP-BYTES
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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: .debug_in_segment
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Type: SHT_PROGBITS
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Flags: [ ]
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Content: "deadbeef"
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- Name: .dynstr
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Type: SHT_STRTAB
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Flags: [ SHF_ALLOC ]
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- Name: .symtab.dyn
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Type: SHT_SYMTAB
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Flags: [ SHF_ALLOC ]
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Type: SHT_NOBITS
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- Name: .text
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Type: SHT_PROGBITS
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Flags: [ SHF_ALLOC, SHF_EXECINSTR ]
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Size: 4
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- Name: .debug_info
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Type: SHT_PROGBITS
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Flags: [ ]
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AddressAlign: 0x1
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Size: 4
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- Name: .debug_loc
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Type: SHT_PROGBITS
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Flags: [ SHF_ALLOC ]
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AddressAlign: 0x1
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Size: 4
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- Name: .comment
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Type: SHT_PROGBITS
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- Name: .random_section_name
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Type: SHT_PROGBITS
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- Name: .debug_not_a_real_debug_section
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Type: SHT_PROGBITS
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- Name: .rel.text
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Type: SHT_REL
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Info: .text
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- Name: .rela.text
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Type: SHT_RELA
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Info: .text
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ProgramHeaders:
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# Use an arbitrary segment type to show that the segment type is unimportant.
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- Type: 0x61234567
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FirstSec: .debug_in_segment
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LastSec: .debug_in_segment
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# CHECK: SectionHeaderCount: 8
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# CHECK: Name: .dynstr
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# CHECK: Name: .symtab.dyn
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# CHECK: Name: .text
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# CHECK: Name: .debug_loc
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# CHECK: Name: .comment
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# CHECK: Name: .random_section_name
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# CHECK: Name: .shstrtab
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# COPY-BYTES: de ad be ef
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# STRIP-BYTES: 00 00 00 00
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