1 //===-- MCAsmInfoDarwin.cpp - Darwin asm properties -------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file defines target asm properties related what form asm statements
11 // should take in general on Darwin-based targets
13 //===----------------------------------------------------------------------===//
15 #include "llvm/MC/MCAsmInfoDarwin.h"
16 #include "llvm/MC/MCContext.h"
17 #include "llvm/MC/MCExpr.h"
18 #include "llvm/MC/MCStreamer.h"
21 MCAsmInfoDarwin::MCAsmInfoDarwin() {
22 // Common settings for all Darwin targets.
25 PrivateGlobalPrefix = "L";
26 LinkerPrivateGlobalPrefix = "l";
27 AllowQuotesInName = true;
28 HasSingleParameterDotFile = false;
29 HasSubsectionsViaSymbols = true;
31 AlignmentIsInBytes = false;
32 COMMDirectiveAlignmentIsInBytes = false;
33 InlineAsmStart = " InlineAsm Start";
34 InlineAsmEnd = " InlineAsm End";
37 WeakDefDirective = "\t.weak_definition ";
38 WeakRefDirective = "\t.weak_reference ";
39 ZeroDirective = "\t.space\t"; // ".space N" emits N zeros.
40 HasMachoZeroFillDirective = true; // Uses .zerofill
41 HasMachoTBSSDirective = true; // Uses .tbss
42 StructorOutputOrder = Structors::PriorityOrder;
43 HasStaticCtorDtorReferenceInStaticMode = true;
45 CodeBegin = "L$start$code$";
46 DataBegin = "L$start$data$";
47 JT8Begin = "L$start$jt8$";
48 JT16Begin = "L$start$jt16$";
49 JT32Begin = "L$start$jt32$";
50 SupportsDataRegions = true;
52 // FIXME: Darwin 10 and newer don't need this.
53 LinkerRequiresNonEmptyDwarfLines = true;
55 // FIXME: Change this once MC is the system assembler.
56 HasAggressiveSymbolFolding = false;
58 HiddenVisibilityAttr = MCSA_PrivateExtern;
59 HiddenDeclarationVisibilityAttr = MCSA_Invalid;
60 // Doesn't support protected visibility.
61 ProtectedVisibilityAttr = MCSA_Global;
63 HasDotTypeDotSizeDirective = false;
64 HasNoDeadStrip = true;
65 HasSymbolResolver = true;
67 DwarfRequiresRelocationForSectionOffset = false;
68 DwarfUsesLabelOffsetForRanges = false;
69 DwarfUsesRelocationsForStringPool = false;