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[ELFYAML] Fix handling SHT_NOBITS sections by obj2yaml/yaml2obj tools

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SHT_NOBITS sections do not have content in an object file. Now the yaml2obj
tool does not accept `Content` field for such sections, and the obj2yaml
tool does not attempt to read the section content from a file.

Restore r241350 and r241352.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241377 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Simon Atanasyan
2015-07-03 23:00:54 +00:00
parent b811509613
commit afc0340d96
6 changed files with 53 additions and 4 deletions
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10
lib/Object/ELFYAML.cpp
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@@ -627,6 +627,11 @@ static void sectionMapping(IO &IO, ELFYAML::RawContentSection &Section) {
IO.mapOptional("Size", Section.Size, Hex64(Section.Content.binary_size()));
}
static void sectionMapping(IO &IO, ELFYAML::NoBitsSection &Section) {
commonSectionMapping(IO, Section);
IO.mapOptional("Size", Section.Size, Hex64(0));
}
static void sectionMapping(IO &IO, ELFYAML::RelocationSection &Section) {
commonSectionMapping(IO, Section);
IO.mapOptional("Relocations", Section.Relocations);
@@ -682,6 +687,11 @@ void MappingTraits<std::unique_ptr<ELFYAML::Section>>::mapping(
Section.reset(new ELFYAML::Group());
groupSectionMapping(IO, *cast<ELFYAML::Group>(Section.get()));
break;
case ELF::SHT_NOBITS:
if (!IO.outputting())
Section.reset(new ELFYAML::NoBitsSection());
sectionMapping(IO, *cast<ELFYAML::NoBitsSection>(Section.get()));
break;
case ELF::SHT_MIPS_ABIFLAGS:
if (!IO.outputting())
Section.reset(new ELFYAML::MipsABIFlags());