llvm-project/llvm/lib/MC/MCAsmInfoDarwin.cpp

59 lines
1.9 KiB
C++

//===-- MCAsmInfoDarwin.cpp - Darwin asm properties -------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines target asm properties related what form asm statements
// should take in general on Darwin-based targets
//
//===----------------------------------------------------------------------===//
#include "llvm/MC/MCAsmInfoDarwin.h"
using namespace llvm;
MCAsmInfoDarwin::MCAsmInfoDarwin() {
// Common settings for all Darwin targets.
// Syntax:
GlobalPrefix = "_";
PrivateGlobalPrefix = "L";
LinkerPrivateGlobalPrefix = "l";
AllowQuotesInName = true;
HasSingleParameterDotFile = false;
HasSubsectionsViaSymbols = true;
AlignmentIsInBytes = false;
COMMDirectiveAlignmentIsInBytes = false;
InlineAsmStart = " InlineAsm Start";
InlineAsmEnd = " InlineAsm End";
// Directives:
WeakDefDirective = "\t.weak_definition ";
WeakRefDirective = "\t.weak_reference ";
ZeroDirective = "\t.space\t"; // ".space N" emits N zeros.
HasMachoZeroFillDirective = true; // Uses .zerofill
HasStaticCtorDtorReferenceInStaticMode = true;
HiddenVisibilityAttr = MCSA_PrivateExtern;
// Doesn't support protected visibility.
ProtectedVisibilityAttr = MCSA_Global;
HasDotTypeDotSizeDirective = false;
HasNoDeadStrip = true;
// Note: Even though darwin has the .lcomm directive, it is just a synonym for
// zerofill, so we prefer to use .zerofill.
// _foo.eh symbols are currently always exported so that the linker knows
// about them. This is not necessary on 10.6 and later, but it
// doesn't hurt anything.
// FIXME: I need to get this from Triple.
Is_EHSymbolPrivate = false;
GlobalEHDirective = "\t.globl\t";
SupportsWeakOmittedEHFrame = false;
}