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https://github.com/RPCS3/llvm.git
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George Rimar
38d4353156
This patch tries to resolve problems faced in D68943 and uses some of the code written by Konrad Wilhelm Kleine in that patch. Previously, yaml2obj tool always created a .symtab section. This patch changes that. With it we only create it when have a "Symbols:" tag in the YAML document or when we need to create it because it is used by another section(s). obj2yaml follows the new behavior and does not print "Symbols:" anymore when there is no symbol table. Differential revision: https://reviews.llvm.org/D69041 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375361 91177308-0d34-0410-b5e6-96231b3b80d8
81 lines
1.8 KiB
YAML
81 lines
1.8 KiB
YAML
## For implicit symbol table sections, the `Flags` field can also
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## be specified in YAML. Here we test the behavior in different cases.
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## When flags are not explicitly specified, yaml2obj assigns no flags
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## for .symtab and the SHF_ALLOC flag for .dynsym by default.
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# RUN: yaml2obj --docnum=1 %s -o %t1
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# RUN: llvm-readobj %t1 -S | FileCheck %s --check-prefix=CASE1
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# CASE1: Name: .symtab
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# CASE1-NEXT: Type: SHT_SYMTAB
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# CASE1-NEXT: Flags [
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# CASE1-NEXT: ]
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# CASE1: Name: .dynsym
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# CASE1-NEXT: Type: SHT_DYNSYM
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# CASE1-NEXT: Flags [
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# CASE1-NEXT: SHF_ALLOC
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# CASE1-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: .symtab
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Type: SHT_SYMTAB
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- Name: .dynsym
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Type: SHT_DYNSYM
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## Check we can set arbitrary flags for .symtab/.dynsym.
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# RUN: yaml2obj --docnum=2 %s -o %t2
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# RUN: llvm-readobj %t2 -S | FileCheck %s --check-prefix=CASE2
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# CASE2: Name: .symtab
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# CASE2-NEXT: Type: SHT_SYMTAB
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# CASE2-NEXT: Flags [
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# CASE2-NEXT: SHF_ALLOC
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# CASE2-NEXT: SHF_STRINGS
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# CASE2-NEXT: ]
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# CASE2: Name: .dynsym
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# CASE2-NEXT: Type: SHT_DYNSYM
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# CASE2-NEXT: Flags [
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# CASE2-NEXT: SHF_STRINGS
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# CASE2-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: .symtab
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Type: SHT_SYMTAB
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Flags: [ SHF_ALLOC, SHF_STRINGS ]
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- Name: .dynsym
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Type: SHT_DYNSYM
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Flags: [ SHF_STRINGS ]
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## Check no flags are set by default for .symtab when it is not
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## described in the YAML.
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# RUN: yaml2obj --docnum=3 %s -o %t3
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# RUN: llvm-readobj %t3 -S | FileCheck %s --check-prefix=CASE3
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# CASE3: Name: .symtab
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# CASE3-NEXT: Type: SHT_SYMTAB
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# CASE3-NEXT: Flags [
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# CASE3-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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Symbols: []
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