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//===-- ARMMCAsmInfo.cpp - ARM asm properties -----------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file contains the declarations of the ARMMCAsmInfo properties.
//
//===----------------------------------------------------------------------===//
#include "ARMMCAsmInfo.h"
#include "llvm/ADT/Triple.h"
using namespace llvm;
void ARMMCAsmInfoDarwin::anchor() { }
ARMMCAsmInfoDarwin::ARMMCAsmInfoDarwin(const Triple &TheTriple) {
if ((TheTriple.getArch() == Triple::armeb) ||
(TheTriple.getArch() == Triple::thumbeb))
IsLittleEndian = false;
Data64bitsDirective = nullptr;
CommentString = "@";
Code16Directive = ".code\t16";
Code32Directive = ".code\t32";
UseDataRegionDirectives = true;
SupportsDebugInformation = true;
// Conditional Thumb 4-byte instructions can have an implicit IT.
MaxInstLength = 6;
// Exceptions handling
ExceptionsType = (TheTriple.isOSDarwin() && !TheTriple.isWatchABI())
? ExceptionHandling::SjLj
: ExceptionHandling::DwarfCFI;
}
void ARMELFMCAsmInfo::anchor() { }
ARMELFMCAsmInfo::ARMELFMCAsmInfo(const Triple &TheTriple) {
if ((TheTriple.getArch() == Triple::armeb) ||
(TheTriple.getArch() == Triple::thumbeb))
IsLittleEndian = false;
// ".comm align is in bytes but .align is pow-2."
AlignmentIsInBytes = false;
Data64bitsDirective = nullptr;
CommentString = "@";
Code16Directive = ".code\t16";
Code32Directive = ".code\t32";
SupportsDebugInformation = true;
// Conditional Thumb 4-byte instructions can have an implicit IT.
MaxInstLength = 6;
// Exceptions handling
switch (TheTriple.getOS()) {
case Triple::NetBSD:
ExceptionsType = ExceptionHandling::DwarfCFI;
break;
default:
ExceptionsType = ExceptionHandling::ARM;
break;
}
// foo(plt) instead of foo@plt
UseParensForSymbolVariant = true;
}
void ARMELFMCAsmInfo::setUseIntegratedAssembler(bool Value) {
UseIntegratedAssembler = Value;
if (!UseIntegratedAssembler) {
// gas doesn't handle VFP register names in cfi directives,
// so don't use register names with external assembler.
// See https://sourceware.org/bugzilla/show_bug.cgi?id=16694
DwarfRegNumForCFI = true;
}
}
void ARMCOFFMCAsmInfoMicrosoft::anchor() { }
ARMCOFFMCAsmInfoMicrosoft::ARMCOFFMCAsmInfoMicrosoft() {
AlignmentIsInBytes = false;
SupportsDebugInformation = true;
ExceptionsType = ExceptionHandling::WinEH;
PrivateGlobalPrefix = "$M";
PrivateLabelPrefix = "$M";
CommentString = ";";
// Conditional Thumb 4-byte instructions can have an implicit IT.
MaxInstLength = 6;
}
void ARMCOFFMCAsmInfoGNU::anchor() { }
ARMCOFFMCAsmInfoGNU::ARMCOFFMCAsmInfoGNU() {
AlignmentIsInBytes = false;
HasSingleParameterDotFile = true;
CommentString = "@";
Code16Directive = ".code\t16";
Code32Directive = ".code\t32";
PrivateGlobalPrefix = ".L";
PrivateLabelPrefix = ".L";
SupportsDebugInformation = true;
ExceptionsType = ExceptionHandling::DwarfCFI;
UseParensForSymbolVariant = true;
DwarfRegNumForCFI = false;
// Conditional Thumb 4-byte instructions can have an implicit IT.
MaxInstLength = 6;
}
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