Differential D29104 Diff 88967 lib/MC/ELFObjectWriter.cpp

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lib/MC/ELFObjectWriter.cpp

Show First 20 Lines • Show All 1,147 Lines • ▼ Show 20 Lines	void ELFObjectWriter::writeSection(const SectionIndexMapTy &SectionIndexMap,

case ELF::SHT_DYNAMIC:		case ELF::SHT_DYNAMIC:
llvm_unreachable("SHT_DYNAMIC in a relocatable object");		llvm_unreachable("SHT_DYNAMIC in a relocatable object");

case ELF::SHT_REL:		case ELF::SHT_REL:
case ELF::SHT_RELA: {		case ELF::SHT_RELA: {
sh_link = SymbolTableIndex;		sh_link = SymbolTableIndex;
assert(sh_link && ".symtab not found");		assert(sh_link && ".symtab not found");
const MCSectionELF *InfoSection = Section.getAssociatedSection();		const MCSectionELF *InfoSection = Section.getRelInfoSection();
sh_info = SectionIndexMap.lookup(InfoSection);		sh_info = SectionIndexMap.lookup(InfoSection);
break;		break;
}		}

case ELF::SHT_SYMTAB:		case ELF::SHT_SYMTAB:
case ELF::SHT_DYNSYM:		case ELF::SHT_DYNSYM:
sh_link = StringTableIndex;		sh_link = StringTableIndex;
sh_info = LastLocalSymbolIndex;		sh_info = LastLocalSymbolIndex;
break;		break;

case ELF::SHT_SYMTAB_SHNDX:		case ELF::SHT_SYMTAB_SHNDX:
sh_link = SymbolTableIndex;		sh_link = SymbolTableIndex;
break;		break;

case ELF::SHT_GROUP:		case ELF::SHT_GROUP:
sh_link = SymbolTableIndex;		sh_link = SymbolTableIndex;
sh_info = GroupSymbolIndex;		sh_info = GroupSymbolIndex;
break;		break;
}		}

if (Section.getFlags() & ELF::SHF_LINK_ORDER)		if (Section.getFlags() & ELF::SHF_LINK_ORDER) {
sh_link = SectionIndexMap.lookup(Section.getAssociatedSection());		const MCSymbol *Sym = Section.getAssociatedSymbol();
		assert(Sym && Sym->isInSection());
		const MCSectionELF *Sec = dyn_cast<MCSectionELF>(&Sym->getSection());
		sh_link = SectionIndexMap.lookup(Sec);
		}

WriteSecHdrEntry(StrTabBuilder.getOffset(Section.getSectionName()),		WriteSecHdrEntry(StrTabBuilder.getOffset(Section.getSectionName()),
Section.getType(), Section.getFlags(), 0, Offset, Size,		Section.getType(), Section.getFlags(), 0, Offset, Size,
sh_link, sh_info, Section.getAlignment(),		sh_link, sh_info, Section.getAlignment(),
Section.getEntrySize());		Section.getEntrySize());
}		}

void ELFObjectWriter::writeSectionHeader(		void ELFObjectWriter::writeSectionHeader(
▲ Show 20 Lines • Show All 107 Lines • ▼ Show 20 Lines	void ELFObjectWriter::writeObject(MCAssembler &Asm,
computeSymbolTable(Asm, Layout, SectionIndexMap, RevGroupMap, SectionOffsets);		computeSymbolTable(Asm, Layout, SectionIndexMap, RevGroupMap, SectionOffsets);

for (MCSectionELF *RelSection : Relocations) {		for (MCSectionELF *RelSection : Relocations) {
align(RelSection->getAlignment());		align(RelSection->getAlignment());

// Remember the offset into the file for this section.		// Remember the offset into the file for this section.
uint64_t SecStart = getStream().tell();		uint64_t SecStart = getStream().tell();

writeRelocations(Asm, *RelSection->getAssociatedSection());		writeRelocations(Asm, *RelSection->getRelInfoSection());

uint64_t SecEnd = getStream().tell();		uint64_t SecEnd = getStream().tell();
SectionOffsets[RelSection] = std::make_pair(SecStart, SecEnd);		SectionOffsets[RelSection] = std::make_pair(SecStart, SecEnd);
}		}

{		{
uint64_t SecStart = getStream().tell();		uint64_t SecStart = getStream().tell();
const MCSectionELF *Sec = createStringTable(Ctx);		const MCSectionELF *Sec = createStringTable(Ctx);
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