diff options
Diffstat (limited to 'contrib/llvm/lib/CodeGen/AsmPrinter/AddressPool.cpp')
| -rw-r--r-- | contrib/llvm/lib/CodeGen/AsmPrinter/AddressPool.cpp | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/contrib/llvm/lib/CodeGen/AsmPrinter/AddressPool.cpp b/contrib/llvm/lib/CodeGen/AsmPrinter/AddressPool.cpp index c8305ad9c547..042243b79259 100644 --- a/contrib/llvm/lib/CodeGen/AsmPrinter/AddressPool.cpp +++ b/contrib/llvm/lib/CodeGen/AsmPrinter/AddressPool.cpp @@ -27,29 +27,35 @@ unsigned AddressPool::getIndex(const MCSymbol *Sym, bool TLS) { void AddressPool::emitHeader(AsmPrinter &Asm, MCSection *Section) { static const uint8_t AddrSize = Asm.getDataLayout().getPointerSize(); - Asm.OutStreamer->SwitchSection(Section); - uint64_t Length = sizeof(uint16_t) // version + sizeof(uint8_t) // address_size + sizeof(uint8_t) // segment_selector_size + AddrSize * Pool.size(); // entries + Asm.OutStreamer->AddComment("Length of contribution"); Asm.emitInt32(Length); // TODO: Support DWARF64 format. + Asm.OutStreamer->AddComment("DWARF version number"); Asm.emitInt16(Asm.getDwarfVersion()); + Asm.OutStreamer->AddComment("Address size"); Asm.emitInt8(AddrSize); + Asm.OutStreamer->AddComment("Segment selector size"); Asm.emitInt8(0); // TODO: Support non-zero segment_selector_size. } // Emit addresses into the section given. void AddressPool::emit(AsmPrinter &Asm, MCSection *AddrSection) { - if (Asm.getDwarfVersion() >= 5) - emitHeader(Asm, AddrSection); - - if (Pool.empty()) + if (isEmpty()) return; // Start the dwarf addr section. Asm.OutStreamer->SwitchSection(AddrSection); + if (Asm.getDwarfVersion() >= 5) + emitHeader(Asm, AddrSection); + + // Define the symbol that marks the start of the contribution. + // It is referenced via DW_AT_addr_base. + Asm.OutStreamer->EmitLabel(AddressTableBaseSym); + // Order the address pool entries by ID SmallVector<const MCExpr *, 64> Entries(Pool.size()); |