2946cd7010
to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
125 lines
3.4 KiB
C++
125 lines
3.4 KiB
C++
//===-- ARMMCAsmInfo.cpp - ARM asm properties -----------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains the declarations of the ARMMCAsmInfo properties.
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//
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//===----------------------------------------------------------------------===//
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#include "ARMMCAsmInfo.h"
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#include "llvm/ADT/Triple.h"
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using namespace llvm;
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void ARMMCAsmInfoDarwin::anchor() { }
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ARMMCAsmInfoDarwin::ARMMCAsmInfoDarwin(const Triple &TheTriple) {
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if ((TheTriple.getArch() == Triple::armeb) ||
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(TheTriple.getArch() == Triple::thumbeb))
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IsLittleEndian = false;
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Data64bitsDirective = nullptr;
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CommentString = "@";
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Code16Directive = ".code\t16";
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Code32Directive = ".code\t32";
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UseDataRegionDirectives = true;
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SupportsDebugInformation = true;
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// Conditional Thumb 4-byte instructions can have an implicit IT.
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MaxInstLength = 6;
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// Exceptions handling
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ExceptionsType = (TheTriple.isOSDarwin() && !TheTriple.isWatchABI())
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? ExceptionHandling::SjLj
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: ExceptionHandling::DwarfCFI;
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UseIntegratedAssembler = true;
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}
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void ARMELFMCAsmInfo::anchor() { }
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ARMELFMCAsmInfo::ARMELFMCAsmInfo(const Triple &TheTriple) {
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if ((TheTriple.getArch() == Triple::armeb) ||
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(TheTriple.getArch() == Triple::thumbeb))
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IsLittleEndian = false;
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// ".comm align is in bytes but .align is pow-2."
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AlignmentIsInBytes = false;
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Data64bitsDirective = nullptr;
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CommentString = "@";
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Code16Directive = ".code\t16";
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Code32Directive = ".code\t32";
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SupportsDebugInformation = true;
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// Conditional Thumb 4-byte instructions can have an implicit IT.
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MaxInstLength = 6;
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// Exceptions handling
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switch (TheTriple.getOS()) {
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case Triple::NetBSD:
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ExceptionsType = ExceptionHandling::DwarfCFI;
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break;
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default:
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ExceptionsType = ExceptionHandling::ARM;
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break;
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}
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// foo(plt) instead of foo@plt
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UseParensForSymbolVariant = true;
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UseIntegratedAssembler = true;
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}
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void ARMELFMCAsmInfo::setUseIntegratedAssembler(bool Value) {
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UseIntegratedAssembler = Value;
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if (!UseIntegratedAssembler) {
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// gas doesn't handle VFP register names in cfi directives,
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// so don't use register names with external assembler.
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// See https://sourceware.org/bugzilla/show_bug.cgi?id=16694
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DwarfRegNumForCFI = true;
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}
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}
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void ARMCOFFMCAsmInfoMicrosoft::anchor() { }
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ARMCOFFMCAsmInfoMicrosoft::ARMCOFFMCAsmInfoMicrosoft() {
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AlignmentIsInBytes = false;
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ExceptionsType = ExceptionHandling::WinEH;
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PrivateGlobalPrefix = "$M";
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PrivateLabelPrefix = "$M";
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CommentString = ";";
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// Conditional Thumb 4-byte instructions can have an implicit IT.
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MaxInstLength = 6;
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}
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void ARMCOFFMCAsmInfoGNU::anchor() { }
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ARMCOFFMCAsmInfoGNU::ARMCOFFMCAsmInfoGNU() {
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AlignmentIsInBytes = false;
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HasSingleParameterDotFile = true;
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CommentString = "@";
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Code16Directive = ".code\t16";
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Code32Directive = ".code\t32";
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PrivateGlobalPrefix = ".L";
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PrivateLabelPrefix = ".L";
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SupportsDebugInformation = true;
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ExceptionsType = ExceptionHandling::DwarfCFI;
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UseParensForSymbolVariant = true;
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UseIntegratedAssembler = true;
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DwarfRegNumForCFI = false;
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// Conditional Thumb 4-byte instructions can have an implicit IT.
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MaxInstLength = 6;
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}
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