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 GlobalPrefix = "_"; 27 PrivateGlobalPrefix = "L"; 28 LinkerPrivateGlobalPrefix = "l"; 29 AllowQuotesInName = true; 30 HasSingleParameterDotFile = false; 31 HasSubsectionsViaSymbols = true; 32 33 AlignmentIsInBytes = false; 34 COMMDirectiveAlignmentIsInBytes = false; 35 LCOMMDirectiveAlignmentType = LCOMM::Log2Alignment; 36 InlineAsmStart = " InlineAsm Start"; 37 InlineAsmEnd = " InlineAsm End"; 38 39 // Directives: 40 WeakDefDirective = "\t.weak_definition "; 41 WeakRefDirective = "\t.weak_reference "; 42 ZeroDirective = "\t.space\t"; // ".space N" emits N zeros. 43 HasMachoZeroFillDirective = true; // Uses .zerofill 44 HasMachoTBSSDirective = true; // Uses .tbss 45 HasStaticCtorDtorReferenceInStaticMode = true; 46 47 // FIXME: Darwin 10 and newer don't need this. 48 LinkerRequiresNonEmptyDwarfLines = true; 49 50 // FIXME: Change this once MC is the system assembler. 51 HasAggressiveSymbolFolding = false; 52 53 HiddenVisibilityAttr = MCSA_PrivateExtern; 54 HiddenDeclarationVisibilityAttr = MCSA_Invalid; 55 56 // Doesn't support protected visibility. 57 ProtectedVisibilityAttr = MCSA_Invalid; 58 59 HasDotTypeDotSizeDirective = false; 60 HasNoDeadStrip = true; 61 HasSymbolResolver = true; 62 63 DwarfUsesRelocationsAcrossSections = false; 64 } 65
