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[yaml2obj][obj2yaml] - Add support for dumping/parsing .dynamic sections.

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This teaches the tools to parse and dump
the .dynamic section and its dynamic tags.

Differential revision: https://reviews.llvm.org/D57691

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@353606 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
George Rimar
2019-02-09 11:34:28 +00:00
parent a7866b1030
commit 0993cc83b8
19 changed files with 623 additions and 125 deletions
Download Patch File Download Diff File Expand all files Collapse all files
lib/ObjectYAML/ELFYAML.cpp
+46
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@@ -661,6 +661,33 @@ void ScalarEnumerationTraits<ELFYAML::ELF_REL>::enumeration(
IO.enumFallback<Hex32>(Value);
}
void ScalarEnumerationTraits<ELFYAML::ELF_DYNTAG>::enumeration(
IO &IO, ELFYAML::ELF_DYNTAG &Value) {
const auto *Object = static_cast<ELFYAML::Object *>(IO.getContext());
assert(Object && "The IO context is not initialized");
// TODO: For simplicity we do not handle target specific flags. They are
// still supported and will be shown as a raw numeric values in the output.
#define MIPS_DYNAMIC_TAG(name, value)
#define HEXAGON_DYNAMIC_TAG(name, value)
#define PPC64_DYNAMIC_TAG(name, value)
// Also ignore marker tags such as DT_HIOS (maps to DT_VERNEEDNUM), etc.
#define DYNAMIC_TAG_MARKER(name, value)
#define STRINGIFY(X) (#X)
#define DYNAMIC_TAG(X, Y) IO.enumCase(Value, STRINGIFY(DT_##X), ELF::DT_##X);
#include "llvm/BinaryFormat/DynamicTags.def"
#undef MIPS_DYNAMIC_TAG
#undef HEXAGON_DYNAMIC_TAG
#undef PPC64_DYNAMIC_TAG
#undef DYNAMIC_TAG_MARKER
#undef STRINGIFY
#undef DYNAMIC_TAG
IO.enumFallback<Hex64>(Value);
}
void ScalarEnumerationTraits<ELFYAML::MIPS_AFL_REG>::enumeration(
IO &IO, ELFYAML::MIPS_AFL_REG &Value) {
#define ECase(X) IO.enumCase(Value, #X, Mips::AFL_##X)
@@ -831,6 +858,11 @@ static void commonSectionMapping(IO &IO, ELFYAML::Section &Section) {
IO.mapOptional("Info", Section.Info, StringRef());
}
static void sectionMapping(IO &IO, ELFYAML::DynamicSection &Section) {
commonSectionMapping(IO, Section);
IO.mapOptional("Entries", Section.Entries);
}
static void sectionMapping(IO &IO, ELFYAML::RawContentSection &Section) {
commonSectionMapping(IO, Section);
IO.mapOptional("Content", Section.Content);
@@ -891,6 +923,11 @@ void MappingTraits<std::unique_ptr<ELFYAML::Section>>::mapping(
IO.mapRequired("Type", sectionType);
switch (sectionType) {
case ELF::SHT_DYNAMIC:
if (!IO.outputting())
Section.reset(new ELFYAML::DynamicSection());
sectionMapping(IO, *cast<ELFYAML::DynamicSection>(Section.get()));
break;
case ELF::SHT_REL:
case ELF::SHT_RELA:
if (!IO.outputting())
@@ -952,6 +989,15 @@ struct NormalizedMips64RelType {
} // end anonymous namespace
void MappingTraits<ELFYAML::DynamicEntry>::mapping(IO &IO,
ELFYAML::DynamicEntry &Rel) {
const auto *Object = static_cast<ELFYAML::Object *>(IO.getContext());
assert(Object && "The IO context is not initialized");
IO.mapRequired("Tag", Rel.Tag);
IO.mapRequired("Value", Rel.Val);
}
void MappingTraits<ELFYAML::Relocation>::mapping(IO &IO,
ELFYAML::Relocation &Rel) {
const auto *Object = static_cast<ELFYAML::Object *>(IO.getContext());