diff options
Diffstat (limited to 'lld/ELF/InputSection.cpp')
| -rw-r--r-- | lld/ELF/InputSection.cpp | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/lld/ELF/InputSection.cpp b/lld/ELF/InputSection.cpp index 3e8d093e6d2..d077c017ca7 100644 --- a/lld/ELF/InputSection.cpp +++ b/lld/ELF/InputSection.cpp @@ -412,7 +412,8 @@ void InputSection::copyRelocations(uint8_t *Buf, ArrayRef<RelTy> Rels) { for (const RelTy &Rel : Rels) { RelType Type = Rel.getType(Config->IsMips64EL); - Symbol &Sym = getFile<ELFT>()->getRelocTargetSym(Rel); + const ObjFile<ELFT> *File = getFile<ELFT>(); + Symbol &Sym = File->getRelocTargetSym(Rel); auto *P = reinterpret_cast<typename ELFT::Rela *>(Buf); Buf += sizeof(RelTy); @@ -435,10 +436,23 @@ void InputSection::copyRelocations(uint8_t *Buf, ArrayRef<RelTy> Rels) { // .eh_frame is horribly special and can reference discarded sections. To // avoid having to parse and recreate .eh_frame, we just replace any // relocation in it pointing to discarded sections with R_*_NONE, which - // hopefully creates a frame that is ignored at runtime. + // hopefully creates a frame that is ignored at runtime. Also, don't warn + // on .gcc_except_table and debug sections. + // + // See the comment in maybeReportUndefined for PPC64 .toc . auto *D = dyn_cast<Defined>(&Sym); if (!D) { - error("STT_SECTION symbol should be defined"); + if (!Sec->Name.startswith(".debug") && + !Sec->Name.startswith(".zdebug") && Sec->Name != ".eh_frame" && + Sec->Name != ".gcc_except_table" && Sec->Name != ".toc") { + uint32_t SecIdx = cast<Undefined>(Sym).DiscardedSecIdx; + Elf_Shdr_Impl<ELFT> Sec = + CHECK(File->getObj().sections(), File)[SecIdx]; + warn("relocation refers to a discarded section: " + + CHECK(File->getObj().getSectionName(&Sec), File) + + "\n>>> referenced by " + getObjMsg(P->r_offset)); + } + P->setSymbolAndType(0, 0, false); continue; } SectionBase *Section = D->Section->Repl; |
