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[yaml2obj][ELF] Add dummy .strtab section.

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This will be needed later for holding symbol names, due to the libObject
issue mentioned in the commit message of r184161.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184242 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Sean Silva 2013-06-18 21:37:50 +00:00
parent f2db8dfa84
commit a7bd8549fd
1 changed files with 11 additions and 3 deletions
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14
tools/yaml2obj/yaml2elf.cpp
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@ -177,10 +177,10 @@ static int writeELF(raw_ostream &OS, const ELFYAML::Object &Doc) {
zero(S.AddressAlign);
Sections.insert(Sections.begin(), S);
}
// "+ 1" for string table.
Header.e_shnum = Sections.size() + 1;
// "+ 2" for string table and section header string table.
Header.e_shnum = Sections.size() + 2;
// Place section header string table last.
Header.e_shstrndx = Sections.size();
Header.e_shstrndx = Sections.size() + 1;
SectionNameToIdxMap SN2I;
for (unsigned i = 0, e = Sections.size(); i != e; ++i) {
@ -230,6 +230,13 @@ static int writeELF(raw_ostream &OS, const ELFYAML::Object &Doc) {
SHeaders.push_back(SHeader);
}
// .strtab string table header. Currently emitted empty.
StringTableBuilder DotStrTab;
Elf_Shdr DotStrTabSHeader;
zero(DotStrTabSHeader);
DotStrTabSHeader.sh_name = SHStrTab.addString(StringRef(".strtab"));
createStringTableSectionHeader(DotStrTabSHeader, DotStrTab, CBA);
// Section header string table header.
Elf_Shdr SHStrTabSHeader;
zero(SHStrTabSHeader);
@ -237,6 +244,7 @@ static int writeELF(raw_ostream &OS, const ELFYAML::Object &Doc) {
OS.write((const char *)&Header, sizeof(Header));
writeVectorData(OS, SHeaders);
OS.write((const char *)&DotStrTabSHeader, sizeof(DotStrTabSHeader));
OS.write((const char *)&SHStrTabSHeader, sizeof(SHStrTabSHeader));
CBA.writeBlobToStream(OS);
return 0;