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[ELF] Optimize obj.getSectionIndex. NFC

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This commit is contained in:
Fangrui Song
2022-01-29 18:01:58 -08:00
parent 5d00d37617
commit ee647d4c96
1 changed files with 10 additions and 3 deletions
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13
lld/ELF/InputFiles.cpp
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@@ -1054,8 +1054,11 @@ void ObjFile<ELFT>::initializeSymbols(const object::ELFFile<ELFT> &obj) {
for (size_t i = 0, end = firstGlobal; i != end; ++i) {
const Elf_Sym &eSym = eSyms[i];
const uint32_t secIdx = check(obj.getSectionIndex(eSym, eSyms, shndxTable));
uint32_t secIdx = eSym.st_shndx;
if (LLVM_UNLIKELY(secIdx == SHN_XINDEX))
secIdx = check(getExtendedSymbolTableIndex<ELFT>(eSym, i, shndxTable));
else if (secIdx >= SHN_LORESERVE)
secIdx = 0;
if (LLVM_UNLIKELY(secIdx >= sections.size()))
fatal(toString(this) + ": invalid section index: " + Twine(secIdx));
if (LLVM_UNLIKELY(eSym.getBinding() != STB_LOCAL))
@@ -1095,7 +1098,11 @@ void ObjFile<ELFT>::initializeSymbols(const object::ELFFile<ELFT> &obj) {
Twine(firstGlobal) + ")");
continue;
}
const uint32_t secIdx = check(obj.getSectionIndex(eSym, eSyms, shndxTable));
uint32_t secIdx = eSym.st_shndx;
if (LLVM_UNLIKELY(secIdx == SHN_XINDEX))
secIdx = check(getExtendedSymbolTableIndex<ELFT>(eSym, i, shndxTable));
else if (secIdx >= SHN_LORESERVE)
secIdx = 0;
if (LLVM_UNLIKELY(secIdx >= sections.size()))
fatal(toString(this) + ": invalid section index: " + Twine(secIdx));
InputSectionBase *sec = sections[secIdx];