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"
18 MCAsmInfoDarwin::MCAsmInfoDarwin() {
19 // Common settings for all Darwin targets.
22 PrivateGlobalPrefix = "L";
23 LinkerPrivateGlobalPrefix = "l";
24 AllowQuotesInName = true;
25 HasSingleParameterDotFile = false;
26 HasSubsectionsViaSymbols = true;
28 AlignmentIsInBytes = false;
29 COMMDirectiveAlignmentIsInBytes = false;
30 InlineAsmStart = " InlineAsm Start";
31 InlineAsmEnd = " InlineAsm End";
34 WeakDefDirective = "\t.weak_definition ";
35 WeakRefDirective = "\t.weak_reference ";
36 ZeroDirective = "\t.space\t"; // ".space N" emits N zeros.
37 HasMachoZeroFillDirective = true; // Uses .zerofill
38 HasStaticCtorDtorReferenceInStaticMode = true;
40 HiddenVisibilityAttr = MCSA_PrivateExtern;
41 // Doesn't support protected visibility.
42 ProtectedVisibilityAttr = MCSA_Global;
45 HasDotTypeDotSizeDirective = false;
46 HasNoDeadStrip = true;
47 // Note: Even though darwin has the .lcomm directive, it is just a synonym for
48 // zerofill, so we prefer to use .zerofill.
50 // _foo.eh symbols are currently always exported so that the linker knows
51 // about them. This is not necessary on 10.6 and later, but it
52 // doesn't hurt anything.
53 // FIXME: I need to get this from Triple.
54 Is_EHSymbolPrivate = false;
55 GlobalEHDirective = "\t.globl\t";
56 SupportsWeakOmittedEHFrame = false;