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[yaml2obj][ELF] Allow symbols to reference sections.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184468 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Sean Silva 2013-06-20 20:59:41 +00:00
parent c18f66e70d
commit 6525e92b32
4 changed files with 11 additions and 0 deletions
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1
include/llvm/Object/ELFYAML.h
View File

@ -57,6 +57,7 @@ struct Symbol {
StringRef Name;
ELF_STB Binding;
ELF_STT Type;
StringRef Section;
};
struct Section {
StringRef Name;

1
lib/Object/ELFYAML.cpp
View File

@ -315,6 +315,7 @@ void MappingTraits<ELFYAML::Symbol>::mapping(IO &IO, ELFYAML::Symbol &Symbol) {
IO.mapOptional("Name", Symbol.Name, StringRef());
IO.mapOptional("Binding", Symbol.Binding, ELFYAML::ELF_STB(0));
IO.mapOptional("Type", Symbol.Type, ELFYAML::ELF_STT(0));
IO.mapOptional("Section", Symbol.Section, StringRef());
}
void MappingTraits<ELFYAML::Section>::mapping(IO &IO,

2
test/Object/yaml2obj-elf-symbol-basic.yaml
View File

@ -15,6 +15,7 @@ Sections:
- Name: main
Binding: STB_GLOBAL
Type: STT_FUNC
Section: .text
# CHECK: Symbols [
# CHECK-NEXT: Symbol {
@ -23,3 +24,4 @@ Sections:
# CHECK-NEXT: Name: main
# CHECK: Binding: Global
# CHECK-NEXT: Type: Function
# CHECK: Section: .text

7
tools/yaml2obj/yaml2elf.cpp
View File

@ -199,6 +199,13 @@ static void handleSymtabSectionHeader(
if (!Sym.Name.empty())
Symbol.st_name = State.getStringTable().addString(Sym.Name);
Symbol.setBindingAndType(Sym.Binding, Sym.Type);
unsigned Index;
if (State.getSN2I().lookupSection(Sym.Section, Index)) {
errs() << "error: Unknown section referenced: '" << Sym.Section
<< "' by YAML symbol " << Sym.Name << ".\n";
exit(1);
}
Symbol.st_shndx = Index;
Syms.push_back(Symbol);
}