1 //===-- MCAsmInfoDarwin.cpp - Darwin asm properties -------------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file defines target asm properties related what form asm statements 11 // should take in general on Darwin-based targets 12 // 13 //===----------------------------------------------------------------------===// 14 15 #include "llvm/MC/MCAsmInfoDarwin.h" 16 #include "llvm/MC/MCContext.h" 17 #include "llvm/MC/MCExpr.h" 18 #include "llvm/MC/MCStreamer.h" 19 using namespace llvm; 20 21 void MCAsmInfoDarwin::anchor() { } 22 23 MCAsmInfoDarwin::MCAsmInfoDarwin() { 24 // Common settings for all Darwin targets. 25 // Syntax: 26 LinkerPrivateGlobalPrefix = "l"; 27 HasSingleParameterDotFile = false; 28 HasSubsectionsViaSymbols = true; 29 30 AlignmentIsInBytes = false; 31 COMMDirectiveAlignmentIsInBytes = false; 32 LCOMMDirectiveAlignmentType = LCOMM::Log2Alignment; 33 InlineAsmStart = " InlineAsm Start"; 34 InlineAsmEnd = " InlineAsm End"; 35 36 // Directives: 37 HasWeakDefDirective = true; 38 HasWeakDefCanBeHiddenDirective = true; 39 WeakRefDirective = "\t.weak_reference "; 40 ZeroDirective = "\t.space\t"; // ".space N" emits N zeros. 41 HasMachoZeroFillDirective = true; // Uses .zerofill 42 HasMachoTBSSDirective = true; // Uses .tbss 43 HasStaticCtorDtorReferenceInStaticMode = true; 44 45 // FIXME: Darwin 10 and newer don't need this. 46 LinkerRequiresNonEmptyDwarfLines = true; 47 48 // FIXME: Change this once MC is the system assembler. 49 HasAggressiveSymbolFolding = false; 50 51 HiddenVisibilityAttr = MCSA_PrivateExtern; 52 HiddenDeclarationVisibilityAttr = MCSA_Invalid; 53 54 // Doesn't support protected visibility. 55 ProtectedVisibilityAttr = MCSA_Invalid; 56 57 HasDotTypeDotSizeDirective = false; 58 HasNoDeadStrip = true; 59 60 DwarfUsesRelocationsAcrossSections = false; 61 62 UseIntegratedAssembler = true; 63 } 64
