diff options
Diffstat (limited to 'llvm/lib/MC/ELFObjectWriter.cpp')
-rw-r--r-- | llvm/lib/MC/ELFObjectWriter.cpp | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/llvm/lib/MC/ELFObjectWriter.cpp b/llvm/lib/MC/ELFObjectWriter.cpp index 3bce1211920..0a54627f8cd 100644 --- a/llvm/lib/MC/ELFObjectWriter.cpp +++ b/llvm/lib/MC/ELFObjectWriter.cpp @@ -787,6 +787,25 @@ bool ELFObjectWriter::shouldRelocateWithSymbol(const MCAssembler &Asm, return false; } +static const MCSymbol *getWeakRef(const MCSymbolRefExpr &Ref) { + const MCSymbol &Sym = Ref.getSymbol(); + + if (Ref.getKind() == MCSymbolRefExpr::VK_WEAKREF) + return &Sym; + + if (!Sym.isVariable()) + return nullptr; + + const MCExpr *Expr = Sym.getVariableValue(); + const auto *Inner = dyn_cast<MCSymbolRefExpr>(Expr); + if (!Inner) + return nullptr; + + if (Inner->getKind() == MCSymbolRefExpr::VK_WEAKREF) + return &Inner->getSymbol(); + return nullptr; +} + void ELFObjectWriter::RecordRelocation(const MCAssembler &Asm, const MCAsmLayout &Layout, const MCFragment *Fragment, @@ -872,8 +891,8 @@ void ELFObjectWriter::RecordRelocation(const MCAssembler &Asm, if (const MCSymbol *R = Renames.lookup(SymA)) SymA = R; - if (RefA->getKind() == MCSymbolRefExpr::VK_WEAKREF) - WeakrefUsedInReloc.insert(SymA); + if (const MCSymbol *WeakRef = getWeakRef(*RefA)) + WeakrefUsedInReloc.insert(WeakRef); else UsedInReloc.insert(SymA); } |