2019-07-09 21:21:01 +02:00
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//===- lib/MC/MCXCOFFStreamer.cpp - XCOFF Object Output -------------------===//
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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 assembles .s files and emits XCOFF .o object files.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/MC/MCXCOFFStreamer.h"
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#include "llvm/MC/MCAsmBackend.h"
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#include "llvm/MC/MCCodeEmitter.h"
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#include "llvm/MC/MCObjectWriter.h"
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#include "llvm/Support/TargetRegistry.h"
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using namespace llvm;
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MCXCOFFStreamer::MCXCOFFStreamer(MCContext &Context,
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std::unique_ptr<MCAsmBackend> MAB,
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std::unique_ptr<MCObjectWriter> OW,
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std::unique_ptr<MCCodeEmitter> Emitter)
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: MCObjectStreamer(Context, std::move(MAB), std::move(OW),
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std::move(Emitter)) {}
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bool MCXCOFFStreamer::EmitSymbolAttribute(MCSymbol *Symbol,
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MCSymbolAttr Attribute) {
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report_fatal_error("Symbol attributes not implemented for XCOFF.");
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}
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void MCXCOFFStreamer::EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
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unsigned ByteAlignment) {
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report_fatal_error("Emiting common symbols not implemented for XCOFF.");
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}
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void MCXCOFFStreamer::EmitZerofill(MCSection *Section, MCSymbol *Symbol,
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uint64_t Size, unsigned ByteAlignment,
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SMLoc Loc) {
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report_fatal_error("Zero fill not implemented for XCOFF.");
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}
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void MCXCOFFStreamer::EmitInstToData(const MCInst &Inst,
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const MCSubtargetInfo &) {
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report_fatal_error("Instruction emission not implemented for XCOFF.");
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}
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MCStreamer *llvm::createXCOFFStreamer(MCContext &Context,
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std::unique_ptr<MCAsmBackend> &&MAB,
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std::unique_ptr<MCObjectWriter> &&OW,
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std::unique_ptr<MCCodeEmitter> &&CE,
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bool RelaxAll) {
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MCXCOFFStreamer *S = new MCXCOFFStreamer(Context, std::move(MAB),
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std::move(OW), std::move(CE));
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if (RelaxAll)
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S->getAssembler().setRelaxAll(true);
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return S;
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}
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Enable assembly output of local commons for AIX
Summary:
This patch enable assembly output of local commons for AIX using .lcomm
directives. Adds a EmitXCOFFLocalCommonSymbol to MCStreamer so we can emit the
AIX version of .lcomm assembly directives which include a csect name. Handle the
case of BSS locals in PPCAIXAsmPrinter by using EmitXCOFFLocalCommonSymbol. Adds
a test for generating .lcomm on AIX Targets.
Reviewers: cebowleratibm, hubert.reinterpretcast, Xiangling_L, jasonliu, sfertile
Reviewed By: sfertile
Subscribers: wuzish, nemanjai, hiraditya, kbarton, MaskRay, jsji, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D64825
llvm-svn: 368306
2019-08-08 17:40:35 +02:00
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void MCXCOFFStreamer::EmitXCOFFLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size,
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unsigned ByteAlign) {
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2019-08-13 19:04:51 +02:00
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report_fatal_error("Emission of local commons not implemented yet.");
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}
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