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 void MCAsmInfoDarwin::anchor() { }
23 MCAsmInfoDarwin::MCAsmInfoDarwin() {
24 // Common settings for all Darwin targets.
26 HasSingleParameterDotFile = false;
27 HasSubsectionsViaSymbols = true;
29 AlignmentIsInBytes = false;
30 COMMDirectiveAlignmentIsInBytes = false;
31 LCOMMDirectiveAlignmentType = LCOMM::Log2Alignment;
32 InlineAsmStart = " InlineAsm Start";
33 InlineAsmEnd = " InlineAsm End";
36 HasWeakDefDirective = true;
37 HasWeakDefCanBeHiddenDirective = true;
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 HasStaticCtorDtorReferenceInStaticMode = true;
44 // FIXME: Darwin 10 and newer don't need this.
45 LinkerRequiresNonEmptyDwarfLines = true;
47 // FIXME: Change this once MC is the system assembler.
48 HasAggressiveSymbolFolding = false;
50 HiddenVisibilityAttr = MCSA_PrivateExtern;
51 HiddenDeclarationVisibilityAttr = MCSA_Invalid;
53 // Doesn't support protected visibility.
54 ProtectedVisibilityAttr = MCSA_Invalid;
56 HasDotTypeDotSizeDirective = false;
57 HasNoDeadStrip = true;
59 DwarfUsesRelocationsAcrossSections = false;