2009-06-24 01:03:06 +00:00
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//===- lib/MC/MCAsmStreamer.cpp - Text Assembly Output --------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/MC/MCStreamer.h"
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2014-04-24 14:33:36 +00:00
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#include "llvm/ADT/STLExtras.h"
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2015-01-14 11:23:27 +00:00
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#include "llvm/ADT/SmallString.h"
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2012-12-03 16:50:05 +00:00
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#include "llvm/ADT/StringExtras.h"
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#include "llvm/ADT/Twine.h"
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#include "llvm/MC/MCAsmBackend.h"
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2009-08-31 08:08:38 +00:00
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#include "llvm/MC/MCAsmInfo.h"
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2009-08-27 00:51:57 +00:00
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#include "llvm/MC/MCCodeEmitter.h"
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2009-06-24 01:03:06 +00:00
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#include "llvm/MC/MCContext.h"
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2009-08-31 08:08:38 +00:00
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#include "llvm/MC/MCExpr.h"
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2010-12-16 03:20:06 +00:00
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#include "llvm/MC/MCFixupKindInfo.h"
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2009-07-01 06:35:03 +00:00
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#include "llvm/MC/MCInst.h"
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2009-09-14 03:02:37 +00:00
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#include "llvm/MC/MCInstPrinter.h"
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2011-07-26 20:57:44 +00:00
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#include "llvm/MC/MCObjectFileInfo.h"
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2011-07-18 20:57:22 +00:00
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#include "llvm/MC/MCRegisterInfo.h"
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2011-07-20 05:58:47 +00:00
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#include "llvm/MC/MCSectionCOFF.h"
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2009-08-10 18:15:01 +00:00
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#include "llvm/MC/MCSectionMachO.h"
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2015-06-02 00:25:12 +00:00
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#include "llvm/MC/MCSymbolELF.h"
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2013-10-05 16:42:21 +00:00
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#include "llvm/Support/CommandLine.h"
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2009-07-11 20:10:48 +00:00
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#include "llvm/Support/ErrorHandling.h"
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2009-08-27 00:51:57 +00:00
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#include "llvm/Support/Format.h"
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2010-01-22 07:29:22 +00:00
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#include "llvm/Support/FormattedStream.h"
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2012-12-03 16:50:05 +00:00
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#include "llvm/Support/MathExtras.h"
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2013-06-11 22:21:28 +00:00
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#include "llvm/Support/Path.h"
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2010-12-19 20:43:38 +00:00
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#include <cctype>
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2009-06-24 01:03:06 +00:00
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using namespace llvm;
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namespace {
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2015-04-09 13:04:20 +00:00
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class MCAsmStreamer final : public MCStreamer {
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2015-04-09 21:06:08 +00:00
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std::unique_ptr<formatted_raw_ostream> OSOwner;
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2010-01-22 07:29:22 +00:00
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formatted_raw_ostream &OS;
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2013-06-18 07:20:20 +00:00
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const MCAsmInfo *MAI;
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2014-03-06 05:51:42 +00:00
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std::unique_ptr<MCInstPrinter> InstPrinter;
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std::unique_ptr<MCCodeEmitter> Emitter;
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std::unique_ptr<MCAsmBackend> AsmBackend;
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2010-09-22 18:16:55 +00:00
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2010-01-22 07:29:22 +00:00
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SmallString<128> CommentToEmit;
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2010-01-22 19:17:48 +00:00
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raw_svector_ostream CommentStream;
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2010-02-03 18:18:30 +00:00
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unsigned IsVerboseAsm : 1;
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unsigned ShowInst : 1;
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2011-10-17 23:05:28 +00:00
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unsigned UseDwarfDirectory : 1;
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2010-02-03 18:18:30 +00:00
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2011-05-30 20:20:15 +00:00
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void EmitRegisterName(int64_t Register);
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2014-11-03 12:19:03 +00:00
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void EmitCFIStartProcImpl(MCDwarfFrameInfo &Frame) override;
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2014-03-08 07:02:02 +00:00
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void EmitCFIEndProcImpl(MCDwarfFrameInfo &Frame) override;
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2011-05-30 20:20:15 +00:00
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2009-08-17 04:17:34 +00:00
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public:
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2015-04-09 21:06:08 +00:00
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MCAsmStreamer(MCContext &Context, std::unique_ptr<formatted_raw_ostream> os,
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2014-05-12 13:07:11 +00:00
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bool isVerboseAsm, bool useDwarfDirectory,
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2014-02-05 18:00:21 +00:00
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MCInstPrinter *printer, MCCodeEmitter *emitter,
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MCAsmBackend *asmbackend, bool showInst)
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2015-04-09 21:06:08 +00:00
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: MCStreamer(Context), OSOwner(std::move(os)), OS(*OSOwner),
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MAI(Context.getAsmInfo()), InstPrinter(printer), Emitter(emitter),
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AsmBackend(asmbackend), CommentStream(CommentToEmit),
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IsVerboseAsm(isVerboseAsm), ShowInst(showInst),
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UseDwarfDirectory(useDwarfDirectory) {
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2015-05-27 12:13:06 +00:00
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assert(InstPrinter);
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if (IsVerboseAsm)
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InstPrinter->setCommentStream(CommentStream);
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2010-02-10 00:10:18 +00:00
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}
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2009-06-24 01:03:06 +00:00
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2010-01-22 07:29:22 +00:00
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inline void EmitEOL() {
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2010-01-22 19:17:48 +00:00
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// If we don't have any comments, just emit a \n.
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if (!IsVerboseAsm) {
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2010-01-22 07:29:22 +00:00
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OS << '\n';
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return;
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}
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EmitCommentsAndEOL();
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}
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void EmitCommentsAndEOL();
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2010-02-02 23:37:42 +00:00
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/// isVerboseAsm - Return true if this streamer supports verbose assembly at
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/// all.
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2014-03-08 07:02:02 +00:00
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bool isVerboseAsm() const override { return IsVerboseAsm; }
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2010-09-22 18:16:55 +00:00
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2010-04-03 21:35:55 +00:00
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/// hasRawTextSupport - We support EmitRawText.
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2014-03-08 07:02:02 +00:00
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bool hasRawTextSupport() const override { return true; }
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2010-02-09 23:00:14 +00:00
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2010-01-22 18:21:35 +00:00
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/// AddComment - Add a comment that can be emitted to the generated .s
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2010-01-22 07:29:22 +00:00
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/// file if applicable as a QoI issue to make the output of the compiler
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/// more readable. This only affects the MCAsmStreamer, and only when
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/// verbose assembly output is enabled.
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2014-03-08 07:02:02 +00:00
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void AddComment(const Twine &T) override;
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2010-02-09 23:00:14 +00:00
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/// AddEncodingComment - Add a comment showing the encoding of an instruction.
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2014-03-08 07:07:08 +00:00
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void AddEncodingComment(const MCInst &Inst, const MCSubtargetInfo &);
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2010-02-09 23:00:14 +00:00
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2010-01-22 19:17:48 +00:00
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/// GetCommentOS - Return a raw_ostream that comments can be written to.
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/// Unlike AddComment, you are required to terminate comments with \n if you
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/// use this method.
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2014-03-08 07:02:02 +00:00
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raw_ostream &GetCommentOS() override {
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2010-01-22 19:17:48 +00:00
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if (!IsVerboseAsm)
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return nulls(); // Discard comments unless in verbose asm mode.
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return CommentStream;
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}
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2010-02-09 23:00:14 +00:00
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2014-03-02 09:09:27 +00:00
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void emitRawComment(const Twine &T, bool TabPrefix = true) override;
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2014-01-16 16:28:37 +00:00
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2010-01-22 19:52:01 +00:00
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/// AddBlankLine - Emit a blank line to a .s file to pretty it up.
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2014-03-08 07:02:02 +00:00
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void AddBlankLine() override {
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2010-01-22 19:52:01 +00:00
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EmitEOL();
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}
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2010-02-09 23:00:14 +00:00
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2009-08-17 04:17:34 +00:00
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/// @name MCStreamer Interface
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/// @{
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2009-06-24 01:03:06 +00:00
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2015-05-21 19:20:38 +00:00
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void ChangeSection(MCSection *Section, const MCExpr *Subsection) override;
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2014-03-08 07:02:02 +00:00
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2014-03-29 07:34:53 +00:00
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void EmitLOHDirective(MCLOHType Kind, const MCLOHArgs &Args) override;
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2014-03-08 07:02:02 +00:00
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void EmitLabel(MCSymbol *Symbol) override;
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void EmitAssemblerFlag(MCAssemblerFlag Flag) override;
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void EmitLinkerOptions(ArrayRef<std::string> Options) override;
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void EmitDataRegion(MCDataRegionType Kind) override;
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2014-03-18 22:09:05 +00:00
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void EmitVersionMin(MCVersionMinType Kind, unsigned Major, unsigned Minor,
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unsigned Update) override;
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2014-03-08 07:02:02 +00:00
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void EmitThumbFunc(MCSymbol *Func) override;
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void EmitAssignment(MCSymbol *Symbol, const MCExpr *Value) override;
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void EmitWeakReference(MCSymbol *Alias, const MCSymbol *Symbol) override;
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bool EmitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute) override;
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void EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue) override;
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void BeginCOFFSymbolDef(const MCSymbol *Symbol) override;
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void EmitCOFFSymbolStorageClass(int StorageClass) override;
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void EmitCOFFSymbolType(int Type) override;
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void EndCOFFSymbolDef() override;
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2015-05-30 04:56:02 +00:00
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void EmitCOFFSafeSEH(MCSymbol const *Symbol) override;
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2014-03-08 07:02:02 +00:00
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void EmitCOFFSectionIndex(MCSymbol const *Symbol) override;
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void EmitCOFFSecRel32(MCSymbol const *Symbol) override;
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2015-06-02 00:25:12 +00:00
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void emitELFSize(MCSymbolELF *Symbol, const MCExpr *Value) override;
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2014-03-08 07:02:02 +00:00
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void EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
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unsigned ByteAlignment) override;
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2009-07-14 18:17:10 +00:00
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2010-01-23 07:47:02 +00:00
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/// EmitLocalCommonSymbol - Emit a local common (.lcomm) symbol.
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///
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/// @param Symbol - The common symbol to emit.
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/// @param Size - The size of the common symbol.
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2012-08-23 16:54:08 +00:00
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/// @param ByteAlignment - The alignment of the common symbol in bytes.
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2014-03-08 07:02:02 +00:00
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void EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size,
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unsigned ByteAlignment) override;
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2015-05-21 19:20:38 +00:00
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void EmitZerofill(MCSection *Section, MCSymbol *Symbol = nullptr,
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2014-03-08 07:02:02 +00:00
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uint64_t Size = 0, unsigned ByteAlignment = 0) override;
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2015-05-21 19:20:38 +00:00
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void EmitTBSSSymbol(MCSection *Section, MCSymbol *Symbol, uint64_t Size,
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unsigned ByteAlignment = 0) override;
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2014-03-08 07:02:02 +00:00
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void EmitBytes(StringRef Data) override;
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2014-04-22 17:27:29 +00:00
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void EmitValueImpl(const MCExpr *Value, unsigned Size,
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const SMLoc &Loc = SMLoc()) override;
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2014-03-08 07:02:02 +00:00
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void EmitIntValue(uint64_t Value, unsigned Size) override;
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void EmitULEB128Value(const MCExpr *Value) override;
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void EmitSLEB128Value(const MCExpr *Value) override;
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void EmitGPRel64Value(const MCExpr *Value) override;
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void EmitGPRel32Value(const MCExpr *Value) override;
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void EmitFill(uint64_t NumBytes, uint8_t FillValue) override;
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void EmitValueToAlignment(unsigned ByteAlignment, int64_t Value = 0,
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unsigned ValueSize = 1,
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unsigned MaxBytesToEmit = 0) override;
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void EmitCodeAlignment(unsigned ByteAlignment,
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unsigned MaxBytesToEmit = 0) override;
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bool EmitValueToOffset(const MCExpr *Offset,
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unsigned char Value = 0) override;
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void EmitFileDirective(StringRef Filename) override;
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2014-03-17 01:52:11 +00:00
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unsigned EmitDwarfFileDirective(unsigned FileNo, StringRef Directory,
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StringRef Filename,
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unsigned CUID = 0) override;
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2014-03-08 07:02:02 +00:00
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void EmitDwarfLocDirective(unsigned FileNo, unsigned Line,
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unsigned Column, unsigned Flags,
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unsigned Isa, unsigned Discriminator,
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StringRef FileName) override;
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2014-04-01 08:07:52 +00:00
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MCSymbol *getDwarfLineTableSymbol(unsigned CUID) override;
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2014-03-08 07:02:02 +00:00
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void EmitIdent(StringRef IdentString) override;
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void EmitCFISections(bool EH, bool Debug) override;
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void EmitCFIDefCfa(int64_t Register, int64_t Offset) override;
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void EmitCFIDefCfaOffset(int64_t Offset) override;
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void EmitCFIDefCfaRegister(int64_t Register) override;
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void EmitCFIOffset(int64_t Register, int64_t Offset) override;
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void EmitCFIPersonality(const MCSymbol *Sym, unsigned Encoding) override;
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void EmitCFILsda(const MCSymbol *Sym, unsigned Encoding) override;
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void EmitCFIRememberState() override;
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void EmitCFIRestoreState() override;
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void EmitCFISameValue(int64_t Register) override;
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void EmitCFIRelOffset(int64_t Register, int64_t Offset) override;
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void EmitCFIAdjustCfaOffset(int64_t Adjustment) override;
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void EmitCFISignalFrame() override;
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void EmitCFIUndefined(int64_t Register) override;
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void EmitCFIRegister(int64_t Register1, int64_t Register2) override;
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void EmitCFIWindowSave() override;
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2014-06-29 01:52:01 +00:00
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void EmitWinCFIStartProc(const MCSymbol *Symbol) override;
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void EmitWinCFIEndProc() override;
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void EmitWinCFIStartChained() override;
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void EmitWinCFIEndChained() override;
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void EmitWinCFIPushReg(unsigned Register) override;
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void EmitWinCFISetFrame(unsigned Register, unsigned Offset) override;
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void EmitWinCFIAllocStack(unsigned Size) override;
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void EmitWinCFISaveReg(unsigned Register, unsigned Offset) override;
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void EmitWinCFISaveXMM(unsigned Register, unsigned Offset) override;
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void EmitWinCFIPushFrame(bool Code) override;
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void EmitWinCFIEndProlog() override;
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void EmitWinEHHandler(const MCSymbol *Sym, bool Unwind, bool Except) override;
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void EmitWinEHHandlerData() override;
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2014-03-08 07:02:02 +00:00
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void EmitInstruction(const MCInst &Inst, const MCSubtargetInfo &STI) override;
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void EmitBundleAlignMode(unsigned AlignPow2) override;
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void EmitBundleLock(bool AlignToEnd) override;
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void EmitBundleUnlock() override;
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2012-12-20 19:05:53 +00:00
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2010-09-22 18:18:30 +00:00
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/// EmitRawText - If this file is backed by an assembly streamer, this dumps
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2010-04-03 21:35:55 +00:00
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/// the specified string in the output .s file. This capability is
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/// indicated by the hasRawTextSupport() predicate.
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2014-03-08 07:02:02 +00:00
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void EmitRawTextImpl(StringRef String) override;
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2010-09-22 18:16:55 +00:00
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2014-03-08 07:02:02 +00:00
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void FinishImpl() override;
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2009-08-17 04:17:34 +00:00
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};
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2009-06-24 19:25:34 +00:00
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2009-08-17 04:17:34 +00:00
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} // end anonymous namespace.
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2009-06-24 01:03:06 +00:00
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2010-01-22 18:21:35 +00:00
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/// AddComment - Add a comment that can be emitted to the generated .s
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2010-01-22 07:29:22 +00:00
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/// file if applicable as a QoI issue to make the output of the compiler
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/// more readable. This only affects the MCAsmStreamer, and only when
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/// verbose assembly output is enabled.
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2010-01-22 18:21:35 +00:00
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void MCAsmStreamer::AddComment(const Twine &T) {
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2010-01-22 07:29:22 +00:00
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if (!IsVerboseAsm) return;
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2010-09-22 18:16:55 +00:00
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2010-01-22 19:17:48 +00:00
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// Make sure that CommentStream is flushed.
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CommentStream.flush();
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2010-09-22 18:16:55 +00:00
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2010-01-22 07:29:22 +00:00
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T.toVector(CommentToEmit);
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2010-01-22 19:17:48 +00:00
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// Each comment goes on its own line.
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CommentToEmit.push_back('\n');
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2010-09-22 18:16:55 +00:00
|
|
|
|
2010-01-22 21:16:10 +00:00
|
|
|
// Tell the comment stream that the vector changed underneath it.
|
|
|
|
CommentStream.resync();
|
2010-01-22 07:29:22 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
void MCAsmStreamer::EmitCommentsAndEOL() {
|
2010-01-22 19:17:48 +00:00
|
|
|
if (CommentToEmit.empty() && CommentStream.GetNumBytesInBuffer() == 0) {
|
|
|
|
OS << '\n';
|
|
|
|
return;
|
|
|
|
}
|
2010-09-22 18:16:55 +00:00
|
|
|
|
2010-01-22 19:17:48 +00:00
|
|
|
CommentStream.flush();
|
2015-03-18 10:17:07 +00:00
|
|
|
StringRef Comments = CommentToEmit;
|
2010-09-22 18:16:55 +00:00
|
|
|
|
2010-01-22 19:17:48 +00:00
|
|
|
assert(Comments.back() == '\n' &&
|
|
|
|
"Comment array not newline terminated");
|
|
|
|
do {
|
2010-01-22 07:29:22 +00:00
|
|
|
// Emit a line of comments.
|
2013-06-18 07:20:20 +00:00
|
|
|
OS.PadToColumn(MAI->getCommentColumn());
|
2010-01-22 07:29:22 +00:00
|
|
|
size_t Position = Comments.find('\n');
|
2013-06-18 07:20:20 +00:00
|
|
|
OS << MAI->getCommentString() << ' ' << Comments.substr(0, Position) <<'\n';
|
2010-09-22 18:16:55 +00:00
|
|
|
|
2010-01-22 07:29:22 +00:00
|
|
|
Comments = Comments.substr(Position+1);
|
2010-01-22 19:17:48 +00:00
|
|
|
} while (!Comments.empty());
|
2010-09-22 18:16:55 +00:00
|
|
|
|
2010-01-22 21:16:10 +00:00
|
|
|
CommentToEmit.clear();
|
|
|
|
// Tell the comment stream that the vector changed underneath it.
|
|
|
|
CommentStream.resync();
|
2010-01-22 07:29:22 +00:00
|
|
|
}
|
|
|
|
|
2009-06-25 21:03:18 +00:00
|
|
|
static inline int64_t truncateToSize(int64_t Value, unsigned Bytes) {
|
|
|
|
assert(Bytes && "Invalid size!");
|
|
|
|
return Value & ((uint64_t) (int64_t) -1 >> (64 - Bytes * 8));
|
|
|
|
}
|
|
|
|
|
2014-01-16 16:28:37 +00:00
|
|
|
void MCAsmStreamer::emitRawComment(const Twine &T, bool TabPrefix) {
|
|
|
|
if (TabPrefix)
|
|
|
|
OS << '\t';
|
|
|
|
OS << MAI->getCommentString() << T;
|
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
2015-05-21 19:20:38 +00:00
|
|
|
void MCAsmStreamer::ChangeSection(MCSection *Section,
|
2013-04-17 21:18:16 +00:00
|
|
|
const MCExpr *Subsection) {
|
2009-08-19 05:49:37 +00:00
|
|
|
assert(Section && "Cannot switch to a null section!");
|
2013-06-18 07:20:20 +00:00
|
|
|
Section->PrintSwitchToSection(*MAI, OS, Subsection);
|
2009-06-24 01:03:06 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
void MCAsmStreamer::EmitLabel(MCSymbol *Symbol) {
|
2009-08-22 07:22:36 +00:00
|
|
|
assert(Symbol->isUndefined() && "Cannot define a symbol twice!");
|
2011-04-27 15:21:19 +00:00
|
|
|
MCStreamer::EmitLabel(Symbol);
|
2009-06-24 17:00:42 +00:00
|
|
|
|
2015-06-09 00:31:39 +00:00
|
|
|
Symbol->print(OS, MAI);
|
|
|
|
OS << MAI->getLabelSuffix();
|
|
|
|
|
2010-01-22 07:36:39 +00:00
|
|
|
EmitEOL();
|
2009-06-24 01:03:06 +00:00
|
|
|
}
|
|
|
|
|
2014-03-29 07:34:53 +00:00
|
|
|
void MCAsmStreamer::EmitLOHDirective(MCLOHType Kind, const MCLOHArgs &Args) {
|
|
|
|
StringRef str = MCLOHIdToName(Kind);
|
|
|
|
|
|
|
|
#ifndef NDEBUG
|
|
|
|
int NbArgs = MCLOHIdToNbArgs(Kind);
|
|
|
|
assert(NbArgs != -1 && ((size_t)NbArgs) == Args.size() && "Malformed LOH!");
|
|
|
|
assert(str != "" && "Invalid LOH name");
|
|
|
|
#endif
|
|
|
|
|
|
|
|
OS << "\t" << MCLOHDirectiveName() << " " << str << "\t";
|
|
|
|
bool IsFirst = true;
|
|
|
|
for (MCLOHArgs::const_iterator It = Args.begin(), EndIt = Args.end();
|
|
|
|
It != EndIt; ++It) {
|
|
|
|
if (!IsFirst)
|
|
|
|
OS << ", ";
|
|
|
|
IsFirst = false;
|
2015-06-09 00:31:39 +00:00
|
|
|
(*It)->print(OS, MAI);
|
2014-03-29 07:34:53 +00:00
|
|
|
}
|
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
2010-01-23 06:39:22 +00:00
|
|
|
void MCAsmStreamer::EmitAssemblerFlag(MCAssemblerFlag Flag) {
|
2009-07-16 17:56:39 +00:00
|
|
|
switch (Flag) {
|
2010-09-30 02:45:56 +00:00
|
|
|
case MCAF_SyntaxUnified: OS << "\t.syntax unified"; break;
|
2010-01-23 06:39:22 +00:00
|
|
|
case MCAF_SubsectionsViaSymbols: OS << ".subsections_via_symbols"; break;
|
2013-06-18 07:20:20 +00:00
|
|
|
case MCAF_Code16: OS << '\t'<< MAI->getCode16Directive();break;
|
|
|
|
case MCAF_Code32: OS << '\t'<< MAI->getCode32Directive();break;
|
|
|
|
case MCAF_Code64: OS << '\t'<< MAI->getCode64Directive();break;
|
2009-07-16 17:56:39 +00:00
|
|
|
}
|
2010-01-22 07:36:39 +00:00
|
|
|
EmitEOL();
|
2009-07-13 21:03:15 +00:00
|
|
|
}
|
|
|
|
|
2013-01-18 01:25:48 +00:00
|
|
|
void MCAsmStreamer::EmitLinkerOptions(ArrayRef<std::string> Options) {
|
|
|
|
assert(!Options.empty() && "At least one option is required!");
|
|
|
|
OS << "\t.linker_option \"" << Options[0] << '"';
|
|
|
|
for (ArrayRef<std::string>::iterator it = Options.begin() + 1,
|
|
|
|
ie = Options.end(); it != ie; ++it) {
|
|
|
|
OS << ", " << '"' << *it << '"';
|
|
|
|
}
|
2013-01-18 19:37:00 +00:00
|
|
|
OS << "\n";
|
2013-01-18 01:25:48 +00:00
|
|
|
}
|
|
|
|
|
2012-05-18 19:12:01 +00:00
|
|
|
void MCAsmStreamer::EmitDataRegion(MCDataRegionType Kind) {
|
2013-06-18 07:20:20 +00:00
|
|
|
if (!MAI->doesSupportDataRegionDirectives())
|
2012-05-18 19:12:01 +00:00
|
|
|
return;
|
|
|
|
switch (Kind) {
|
|
|
|
case MCDR_DataRegion: OS << "\t.data_region"; break;
|
|
|
|
case MCDR_DataRegionJT8: OS << "\t.data_region jt8"; break;
|
|
|
|
case MCDR_DataRegionJT16: OS << "\t.data_region jt16"; break;
|
|
|
|
case MCDR_DataRegionJT32: OS << "\t.data_region jt32"; break;
|
|
|
|
case MCDR_DataRegionEnd: OS << "\t.end_data_region"; break;
|
|
|
|
}
|
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
2014-03-18 22:09:05 +00:00
|
|
|
void MCAsmStreamer::EmitVersionMin(MCVersionMinType Kind, unsigned Major,
|
|
|
|
unsigned Minor, unsigned Update) {
|
|
|
|
switch (Kind) {
|
|
|
|
case MCVM_IOSVersionMin: OS << "\t.ios_version_min"; break;
|
|
|
|
case MCVM_OSXVersionMin: OS << "\t.macosx_version_min"; break;
|
|
|
|
}
|
|
|
|
OS << " " << Major << ", " << Minor;
|
|
|
|
if (Update)
|
|
|
|
OS << ", " << Update;
|
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
2010-11-05 22:08:08 +00:00
|
|
|
void MCAsmStreamer::EmitThumbFunc(MCSymbol *Func) {
|
|
|
|
// This needs to emit to a temporary string to get properly quoted
|
|
|
|
// MCSymbols when they have spaces in them.
|
|
|
|
OS << "\t.thumb_func";
|
2011-05-16 16:17:21 +00:00
|
|
|
// Only Mach-O hasSubsectionsViaSymbols()
|
2015-06-09 00:31:39 +00:00
|
|
|
if (MAI->hasSubsectionsViaSymbols()) {
|
|
|
|
OS << '\t';
|
|
|
|
Func->print(OS, MAI);
|
|
|
|
}
|
2010-11-05 22:08:08 +00:00
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
2009-08-31 08:09:28 +00:00
|
|
|
void MCAsmStreamer::EmitAssignment(MCSymbol *Symbol, const MCExpr *Value) {
|
2015-06-09 00:31:39 +00:00
|
|
|
Symbol->print(OS, MAI);
|
|
|
|
OS << " = ";
|
|
|
|
Value->print(OS, MAI);
|
|
|
|
|
2010-01-22 07:36:39 +00:00
|
|
|
EmitEOL();
|
2009-10-16 01:34:54 +00:00
|
|
|
|
2014-03-20 09:44:49 +00:00
|
|
|
MCStreamer::EmitAssignment(Symbol, Value);
|
2009-06-24 01:03:06 +00:00
|
|
|
}
|
|
|
|
|
2010-11-01 14:28:48 +00:00
|
|
|
void MCAsmStreamer::EmitWeakReference(MCSymbol *Alias, const MCSymbol *Symbol) {
|
2015-06-09 00:31:39 +00:00
|
|
|
OS << ".weakref ";
|
|
|
|
Alias->print(OS, MAI);
|
|
|
|
OS << ", ";
|
|
|
|
Symbol->print(OS, MAI);
|
2010-11-01 14:28:48 +00:00
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
2013-08-09 01:52:03 +00:00
|
|
|
bool MCAsmStreamer::EmitSymbolAttribute(MCSymbol *Symbol,
|
2010-01-23 06:39:22 +00:00
|
|
|
MCSymbolAttr Attribute) {
|
2009-06-24 01:03:06 +00:00
|
|
|
switch (Attribute) {
|
2012-02-07 05:05:23 +00:00
|
|
|
case MCSA_Invalid: llvm_unreachable("Invalid symbol attribute");
|
2010-01-25 18:30:45 +00:00
|
|
|
case MCSA_ELF_TypeFunction: /// .type _foo, STT_FUNC # aka @function
|
|
|
|
case MCSA_ELF_TypeIndFunction: /// .type _foo, STT_GNU_IFUNC
|
|
|
|
case MCSA_ELF_TypeObject: /// .type _foo, STT_OBJECT # aka @object
|
|
|
|
case MCSA_ELF_TypeTLS: /// .type _foo, STT_TLS # aka @tls_object
|
|
|
|
case MCSA_ELF_TypeCommon: /// .type _foo, STT_COMMON # aka @common
|
|
|
|
case MCSA_ELF_TypeNoType: /// .type _foo, STT_NOTYPE # aka @notype
|
2010-11-13 04:55:06 +00:00
|
|
|
case MCSA_ELF_TypeGnuUniqueObject: /// .type _foo, @gnu_unique_object
|
2013-08-09 01:52:03 +00:00
|
|
|
if (!MAI->hasDotTypeDotSizeDirective())
|
|
|
|
return false; // Symbol attribute not supported
|
2015-06-09 00:31:39 +00:00
|
|
|
OS << "\t.type\t";
|
|
|
|
Symbol->print(OS, MAI);
|
|
|
|
OS << ',' << ((MAI->getCommentString()[0] != '@') ? '@' : '%');
|
2010-01-25 18:30:45 +00:00
|
|
|
switch (Attribute) {
|
2013-08-09 01:52:03 +00:00
|
|
|
default: return false;
|
2010-01-25 18:30:45 +00:00
|
|
|
case MCSA_ELF_TypeFunction: OS << "function"; break;
|
|
|
|
case MCSA_ELF_TypeIndFunction: OS << "gnu_indirect_function"; break;
|
|
|
|
case MCSA_ELF_TypeObject: OS << "object"; break;
|
|
|
|
case MCSA_ELF_TypeTLS: OS << "tls_object"; break;
|
|
|
|
case MCSA_ELF_TypeCommon: OS << "common"; break;
|
|
|
|
case MCSA_ELF_TypeNoType: OS << "no_type"; break;
|
2010-11-13 04:55:06 +00:00
|
|
|
case MCSA_ELF_TypeGnuUniqueObject: OS << "gnu_unique_object"; break;
|
2010-01-25 18:30:45 +00:00
|
|
|
}
|
|
|
|
EmitEOL();
|
2013-08-09 01:52:03 +00:00
|
|
|
return true;
|
2010-01-25 18:30:45 +00:00
|
|
|
case MCSA_Global: // .globl/.global
|
2013-06-18 07:20:20 +00:00
|
|
|
OS << MAI->getGlobalDirective();
|
2010-01-25 18:30:45 +00:00
|
|
|
break;
|
2010-06-21 20:35:01 +00:00
|
|
|
case MCSA_Hidden: OS << "\t.hidden\t"; break;
|
|
|
|
case MCSA_IndirectSymbol: OS << "\t.indirect_symbol\t"; break;
|
|
|
|
case MCSA_Internal: OS << "\t.internal\t"; break;
|
|
|
|
case MCSA_LazyReference: OS << "\t.lazy_reference\t"; break;
|
|
|
|
case MCSA_Local: OS << "\t.local\t"; break;
|
2014-12-24 04:11:42 +00:00
|
|
|
case MCSA_NoDeadStrip:
|
|
|
|
if (!MAI->hasNoDeadStrip())
|
|
|
|
return false;
|
|
|
|
OS << "\t.no_dead_strip\t";
|
|
|
|
break;
|
2010-11-19 18:39:33 +00:00
|
|
|
case MCSA_SymbolResolver: OS << "\t.symbol_resolver\t"; break;
|
2011-04-30 16:34:57 +00:00
|
|
|
case MCSA_PrivateExtern:
|
|
|
|
OS << "\t.private_extern\t";
|
|
|
|
break;
|
2010-06-21 20:35:01 +00:00
|
|
|
case MCSA_Protected: OS << "\t.protected\t"; break;
|
|
|
|
case MCSA_Reference: OS << "\t.reference\t"; break;
|
2014-12-01 21:16:17 +00:00
|
|
|
case MCSA_Weak: OS << MAI->getWeakDirective(); break;
|
2011-04-30 16:34:57 +00:00
|
|
|
case MCSA_WeakDefinition:
|
|
|
|
OS << "\t.weak_definition\t";
|
|
|
|
break;
|
2010-01-23 06:39:22 +00:00
|
|
|
// .weak_reference
|
2013-06-18 07:20:20 +00:00
|
|
|
case MCSA_WeakReference: OS << MAI->getWeakRefDirective(); break;
|
2010-07-08 17:22:42 +00:00
|
|
|
case MCSA_WeakDefAutoPrivate: OS << "\t.weak_def_can_be_hidden\t"; break;
|
2009-06-24 01:03:06 +00:00
|
|
|
}
|
|
|
|
|
2015-06-09 00:31:39 +00:00
|
|
|
Symbol->print(OS, MAI);
|
2010-01-22 07:36:39 +00:00
|
|
|
EmitEOL();
|
2013-08-09 01:52:03 +00:00
|
|
|
|
|
|
|
return true;
|
2009-06-24 01:03:06 +00:00
|
|
|
}
|
|
|
|
|
2009-07-14 18:17:10 +00:00
|
|
|
void MCAsmStreamer::EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue) {
|
2015-06-09 00:31:39 +00:00
|
|
|
OS << ".desc" << ' ';
|
|
|
|
Symbol->print(OS, MAI);
|
|
|
|
OS << ',' << DescValue;
|
2010-01-22 07:36:39 +00:00
|
|
|
EmitEOL();
|
2009-07-14 18:17:10 +00:00
|
|
|
}
|
|
|
|
|
2010-05-08 19:54:22 +00:00
|
|
|
void MCAsmStreamer::BeginCOFFSymbolDef(const MCSymbol *Symbol) {
|
2015-06-09 00:31:39 +00:00
|
|
|
OS << "\t.def\t ";
|
|
|
|
Symbol->print(OS, MAI);
|
|
|
|
OS << ';';
|
2010-05-08 19:54:22 +00:00
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
|
|
|
void MCAsmStreamer::EmitCOFFSymbolStorageClass (int StorageClass) {
|
|
|
|
OS << "\t.scl\t" << StorageClass << ';';
|
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
|
|
|
void MCAsmStreamer::EmitCOFFSymbolType (int Type) {
|
|
|
|
OS << "\t.type\t" << Type << ';';
|
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
|
|
|
void MCAsmStreamer::EndCOFFSymbolDef() {
|
|
|
|
OS << "\t.endef";
|
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
2015-05-30 04:56:02 +00:00
|
|
|
void MCAsmStreamer::EmitCOFFSafeSEH(MCSymbol const *Symbol) {
|
|
|
|
OS << "\t.safeseh\t" << *Symbol;
|
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
2013-12-20 18:15:00 +00:00
|
|
|
void MCAsmStreamer::EmitCOFFSectionIndex(MCSymbol const *Symbol) {
|
2015-06-09 00:31:39 +00:00
|
|
|
OS << "\t.secidx\t";
|
|
|
|
Symbol->print(OS, MAI);
|
2013-12-20 18:15:00 +00:00
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
2011-12-17 01:14:52 +00:00
|
|
|
void MCAsmStreamer::EmitCOFFSecRel32(MCSymbol const *Symbol) {
|
2015-06-09 00:31:39 +00:00
|
|
|
OS << "\t.secrel32\t";
|
|
|
|
Symbol->print(OS, MAI);
|
2011-12-17 01:14:52 +00:00
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
2015-06-02 00:25:12 +00:00
|
|
|
void MCAsmStreamer::emitELFSize(MCSymbolELF *Symbol, const MCExpr *Value) {
|
2013-06-18 07:20:20 +00:00
|
|
|
assert(MAI->hasDotTypeDotSizeDirective());
|
2015-06-09 00:31:39 +00:00
|
|
|
OS << "\t.size\t";
|
|
|
|
Symbol->print(OS, MAI);
|
|
|
|
OS << ", ";
|
|
|
|
Value->print(OS, MAI);
|
|
|
|
OS << '\n';
|
2010-01-25 07:52:13 +00:00
|
|
|
}
|
|
|
|
|
2010-01-23 07:47:02 +00:00
|
|
|
void MCAsmStreamer::EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
|
2009-08-30 06:17:16 +00:00
|
|
|
unsigned ByteAlignment) {
|
2013-09-23 17:56:20 +00:00
|
|
|
// Common symbols do not belong to any actual section.
|
2014-04-13 04:57:38 +00:00
|
|
|
AssignSection(Symbol, nullptr);
|
2013-09-19 23:21:01 +00:00
|
|
|
|
2015-06-09 00:31:39 +00:00
|
|
|
OS << "\t.comm\t";
|
|
|
|
Symbol->print(OS, MAI);
|
|
|
|
OS << ',' << Size;
|
|
|
|
|
2010-01-25 07:29:13 +00:00
|
|
|
if (ByteAlignment != 0) {
|
2013-06-18 07:20:20 +00:00
|
|
|
if (MAI->getCOMMDirectiveAlignmentIsInBytes())
|
2010-01-19 06:01:04 +00:00
|
|
|
OS << ',' << ByteAlignment;
|
|
|
|
else
|
|
|
|
OS << ',' << Log2_32(ByteAlignment);
|
|
|
|
}
|
2010-01-22 07:36:39 +00:00
|
|
|
EmitEOL();
|
2009-07-07 20:30:46 +00:00
|
|
|
}
|
|
|
|
|
2010-01-23 07:47:02 +00:00
|
|
|
/// EmitLocalCommonSymbol - Emit a local common (.lcomm) symbol.
|
|
|
|
///
|
|
|
|
/// @param Symbol - The common symbol to emit.
|
|
|
|
/// @param Size - The size of the common symbol.
|
2011-09-01 23:04:27 +00:00
|
|
|
void MCAsmStreamer::EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size,
|
|
|
|
unsigned ByteAlign) {
|
2013-09-23 17:56:20 +00:00
|
|
|
// Common symbols do not belong to any actual section.
|
2014-04-13 04:57:38 +00:00
|
|
|
AssignSection(Symbol, nullptr);
|
2013-09-19 23:21:01 +00:00
|
|
|
|
2015-06-09 00:31:39 +00:00
|
|
|
OS << "\t.lcomm\t";
|
|
|
|
Symbol->print(OS, MAI);
|
|
|
|
OS << ',' << Size;
|
|
|
|
|
2011-09-01 23:04:27 +00:00
|
|
|
if (ByteAlign > 1) {
|
2013-06-18 07:20:20 +00:00
|
|
|
switch (MAI->getLCOMMDirectiveAlignmentType()) {
|
2012-09-07 21:08:01 +00:00
|
|
|
case LCOMM::NoAlignment:
|
|
|
|
llvm_unreachable("alignment not supported on .lcomm!");
|
|
|
|
case LCOMM::ByteAlignment:
|
2012-09-07 17:25:13 +00:00
|
|
|
OS << ',' << ByteAlign;
|
2012-09-07 21:08:01 +00:00
|
|
|
break;
|
|
|
|
case LCOMM::Log2Alignment:
|
2012-09-07 17:25:13 +00:00
|
|
|
assert(isPowerOf2_32(ByteAlign) && "alignment must be a power of 2");
|
|
|
|
OS << ',' << Log2_32(ByteAlign);
|
2012-09-07 21:08:01 +00:00
|
|
|
break;
|
2012-09-07 17:25:13 +00:00
|
|
|
}
|
2011-09-01 23:04:27 +00:00
|
|
|
}
|
2010-01-23 07:47:02 +00:00
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
2015-05-21 19:20:38 +00:00
|
|
|
void MCAsmStreamer::EmitZerofill(MCSection *Section, MCSymbol *Symbol,
|
2012-06-22 20:14:46 +00:00
|
|
|
uint64_t Size, unsigned ByteAlignment) {
|
2013-09-19 23:21:01 +00:00
|
|
|
if (Symbol)
|
|
|
|
AssignSection(Symbol, Section);
|
|
|
|
|
2009-08-13 23:36:34 +00:00
|
|
|
// Note: a .zerofill directive does not switch sections.
|
2009-08-08 23:39:42 +00:00
|
|
|
OS << ".zerofill ";
|
2010-09-22 18:16:55 +00:00
|
|
|
|
2009-08-08 23:39:42 +00:00
|
|
|
// This is a mach-o specific directive.
|
2009-08-10 01:39:42 +00:00
|
|
|
const MCSectionMachO *MOSection = ((const MCSectionMachO*)Section);
|
2009-08-14 18:51:45 +00:00
|
|
|
OS << MOSection->getSegmentName() << "," << MOSection->getSectionName();
|
2010-09-22 18:16:55 +00:00
|
|
|
|
2014-04-13 04:57:38 +00:00
|
|
|
if (Symbol) {
|
2015-06-09 00:31:39 +00:00
|
|
|
OS << ',';
|
|
|
|
Symbol->print(OS, MAI);
|
|
|
|
OS << ',' << Size;
|
2009-08-30 06:17:16 +00:00
|
|
|
if (ByteAlignment != 0)
|
|
|
|
OS << ',' << Log2_32(ByteAlignment);
|
2009-07-10 22:20:30 +00:00
|
|
|
}
|
2010-01-22 07:36:39 +00:00
|
|
|
EmitEOL();
|
2009-07-10 22:20:30 +00:00
|
|
|
}
|
|
|
|
|
2010-05-17 02:13:02 +00:00
|
|
|
// .tbss sym, size, align
|
|
|
|
// This depends that the symbol has already been mangled from the original,
|
|
|
|
// e.g. _a.
|
2015-05-21 19:20:38 +00:00
|
|
|
void MCAsmStreamer::EmitTBSSSymbol(MCSection *Section, MCSymbol *Symbol,
|
2010-05-18 21:16:04 +00:00
|
|
|
uint64_t Size, unsigned ByteAlignment) {
|
2013-09-19 23:21:01 +00:00
|
|
|
AssignSection(Symbol, Section);
|
|
|
|
|
2014-04-13 04:57:38 +00:00
|
|
|
assert(Symbol && "Symbol shouldn't be NULL!");
|
2010-05-18 21:16:04 +00:00
|
|
|
// Instead of using the Section we'll just use the shortcut.
|
|
|
|
// This is a mach-o specific directive and section.
|
2015-06-09 00:31:39 +00:00
|
|
|
OS << ".tbss ";
|
|
|
|
Symbol->print(OS, MAI);
|
|
|
|
OS << ", " << Size;
|
2010-09-22 18:16:55 +00:00
|
|
|
|
2010-05-18 21:16:04 +00:00
|
|
|
// Output align if we have it. We default to 1 so don't bother printing
|
|
|
|
// that.
|
|
|
|
if (ByteAlignment > 1) OS << ", " << Log2_32(ByteAlignment);
|
2010-09-22 18:16:55 +00:00
|
|
|
|
2010-05-14 01:50:28 +00:00
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
2010-01-23 00:15:00 +00:00
|
|
|
static inline char toOctal(int X) { return (X&7)+'0'; }
|
|
|
|
|
2010-01-25 18:58:59 +00:00
|
|
|
static void PrintQuotedString(StringRef Data, raw_ostream &OS) {
|
|
|
|
OS << '"';
|
2010-09-22 18:16:55 +00:00
|
|
|
|
2010-01-25 18:58:59 +00:00
|
|
|
for (unsigned i = 0, e = Data.size(); i != e; ++i) {
|
|
|
|
unsigned char C = Data[i];
|
|
|
|
if (C == '"' || C == '\\') {
|
|
|
|
OS << '\\' << (char)C;
|
|
|
|
continue;
|
|
|
|
}
|
2010-09-22 18:16:55 +00:00
|
|
|
|
2010-01-25 18:58:59 +00:00
|
|
|
if (isprint((unsigned char)C)) {
|
|
|
|
OS << (char)C;
|
|
|
|
continue;
|
|
|
|
}
|
2010-09-22 18:16:55 +00:00
|
|
|
|
2010-01-25 18:58:59 +00:00
|
|
|
switch (C) {
|
|
|
|
case '\b': OS << "\\b"; break;
|
|
|
|
case '\f': OS << "\\f"; break;
|
|
|
|
case '\n': OS << "\\n"; break;
|
|
|
|
case '\r': OS << "\\r"; break;
|
|
|
|
case '\t': OS << "\\t"; break;
|
|
|
|
default:
|
|
|
|
OS << '\\';
|
|
|
|
OS << toOctal(C >> 6);
|
|
|
|
OS << toOctal(C >> 3);
|
|
|
|
OS << toOctal(C >> 0);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
2010-09-22 18:16:55 +00:00
|
|
|
|
2010-01-25 18:58:59 +00:00
|
|
|
OS << '"';
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2013-07-02 15:49:13 +00:00
|
|
|
void MCAsmStreamer::EmitBytes(StringRef Data) {
|
2013-04-17 21:18:16 +00:00
|
|
|
assert(getCurrentSection().first &&
|
|
|
|
"Cannot emit contents before setting section!");
|
2010-01-23 00:15:00 +00:00
|
|
|
if (Data.empty()) return;
|
2010-09-22 18:16:55 +00:00
|
|
|
|
2010-01-23 00:15:00 +00:00
|
|
|
if (Data.size() == 1) {
|
2013-07-02 15:49:13 +00:00
|
|
|
OS << MAI->getData8bitsDirective();
|
2010-01-23 00:15:00 +00:00
|
|
|
OS << (unsigned)(unsigned char)Data[0];
|
2010-01-22 07:36:39 +00:00
|
|
|
EmitEOL();
|
2010-01-23 00:15:00 +00:00
|
|
|
return;
|
2010-01-22 07:36:39 +00:00
|
|
|
}
|
2010-01-23 00:15:00 +00:00
|
|
|
|
|
|
|
// If the data ends with 0 and the target supports .asciz, use it, otherwise
|
|
|
|
// use .ascii
|
2013-06-18 07:20:20 +00:00
|
|
|
if (MAI->getAscizDirective() && Data.back() == 0) {
|
|
|
|
OS << MAI->getAscizDirective();
|
2010-01-23 00:15:00 +00:00
|
|
|
Data = Data.substr(0, Data.size()-1);
|
|
|
|
} else {
|
2013-06-18 07:20:20 +00:00
|
|
|
OS << MAI->getAsciiDirective();
|
2010-01-23 00:15:00 +00:00
|
|
|
}
|
|
|
|
|
2010-01-25 18:58:59 +00:00
|
|
|
PrintQuotedString(Data, OS);
|
2010-01-23 00:15:00 +00:00
|
|
|
EmitEOL();
|
2009-06-24 01:03:06 +00:00
|
|
|
}
|
|
|
|
|
2013-07-02 15:49:13 +00:00
|
|
|
void MCAsmStreamer::EmitIntValue(uint64_t Value, unsigned Size) {
|
2015-05-30 01:25:56 +00:00
|
|
|
EmitValue(MCConstantExpr::create(Value, getContext()), Size);
|
2010-12-03 02:54:21 +00:00
|
|
|
}
|
|
|
|
|
2014-04-22 17:27:29 +00:00
|
|
|
void MCAsmStreamer::EmitValueImpl(const MCExpr *Value, unsigned Size,
|
|
|
|
const SMLoc &Loc) {
|
2014-02-01 07:19:38 +00:00
|
|
|
assert(Size <= 8 && "Invalid size");
|
2013-04-17 21:18:16 +00:00
|
|
|
assert(getCurrentSection().first &&
|
|
|
|
"Cannot emit contents before setting section!");
|
2014-04-13 04:57:38 +00:00
|
|
|
const char *Directive = nullptr;
|
2010-01-19 22:03:38 +00:00
|
|
|
switch (Size) {
|
|
|
|
default: break;
|
2013-07-02 15:49:13 +00:00
|
|
|
case 1: Directive = MAI->getData8bitsDirective(); break;
|
|
|
|
case 2: Directive = MAI->getData16bitsDirective(); break;
|
|
|
|
case 4: Directive = MAI->getData32bitsDirective(); break;
|
2014-02-01 07:19:38 +00:00
|
|
|
case 8: Directive = MAI->getData64bitsDirective(); break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!Directive) {
|
2010-11-28 23:22:44 +00:00
|
|
|
int64_t IntValue;
|
2015-05-30 01:25:56 +00:00
|
|
|
if (!Value->evaluateAsAbsolute(IntValue))
|
2010-11-28 23:22:44 +00:00
|
|
|
report_fatal_error("Don't know how to emit this value.");
|
2014-02-01 07:19:38 +00:00
|
|
|
|
|
|
|
// We couldn't handle the requested integer size so we fallback by breaking
|
|
|
|
// the request down into several, smaller, integers. Since sizes greater
|
|
|
|
// than eight are invalid and size equivalent to eight should have been
|
|
|
|
// handled earlier, we use four bytes as our largest piece of granularity.
|
|
|
|
bool IsLittleEndian = MAI->isLittleEndian();
|
|
|
|
for (unsigned Emitted = 0; Emitted != Size;) {
|
|
|
|
unsigned Remaining = Size - Emitted;
|
|
|
|
// The size of our partial emission must be a power of two less than
|
|
|
|
// eight.
|
|
|
|
unsigned EmissionSize = PowerOf2Floor(Remaining);
|
|
|
|
if (EmissionSize > 4)
|
|
|
|
EmissionSize = 4;
|
|
|
|
// Calculate the byte offset of our partial emission taking into account
|
|
|
|
// the endianness of the target.
|
|
|
|
unsigned ByteOffset =
|
|
|
|
IsLittleEndian ? Emitted : (Remaining - EmissionSize);
|
|
|
|
uint64_t ValueToEmit = IntValue >> (ByteOffset * 8);
|
|
|
|
// We truncate our partial emission to fit within the bounds of the
|
|
|
|
// emission domain. This produces nicer output and silences potential
|
|
|
|
// truncation warnings when round tripping through another assembler.
|
2014-12-12 21:48:03 +00:00
|
|
|
uint64_t Shift = 64 - EmissionSize * 8;
|
2014-12-15 14:25:12 +00:00
|
|
|
assert(Shift < static_cast<uint64_t>(
|
2014-12-13 16:55:02 +00:00
|
|
|
std::numeric_limits<unsigned long long>::digits) &&
|
2014-12-12 21:48:03 +00:00
|
|
|
"undefined behavior");
|
|
|
|
ValueToEmit &= ~0ULL >> Shift;
|
2014-02-01 07:19:38 +00:00
|
|
|
EmitIntValue(ValueToEmit, EmissionSize);
|
|
|
|
Emitted += EmissionSize;
|
2010-01-20 06:45:39 +00:00
|
|
|
}
|
|
|
|
return;
|
2010-01-19 22:03:38 +00:00
|
|
|
}
|
2010-09-22 18:16:55 +00:00
|
|
|
|
2010-01-19 22:03:38 +00:00
|
|
|
assert(Directive && "Invalid size for machine code value!");
|
2015-06-09 00:31:39 +00:00
|
|
|
OS << Directive;
|
|
|
|
Value->print(OS, MAI);
|
2010-01-22 07:29:22 +00:00
|
|
|
EmitEOL();
|
2009-06-24 01:03:06 +00:00
|
|
|
}
|
|
|
|
|
2011-04-21 23:39:26 +00:00
|
|
|
void MCAsmStreamer::EmitULEB128Value(const MCExpr *Value) {
|
2010-11-19 04:10:13 +00:00
|
|
|
int64_t IntValue;
|
2015-05-30 01:25:56 +00:00
|
|
|
if (Value->evaluateAsAbsolute(IntValue)) {
|
2011-04-21 23:39:26 +00:00
|
|
|
EmitULEB128IntValue(IntValue);
|
2010-11-19 04:10:13 +00:00
|
|
|
return;
|
|
|
|
}
|
2015-06-09 00:31:39 +00:00
|
|
|
OS << ".uleb128 ";
|
|
|
|
Value->print(OS, MAI);
|
2010-11-02 17:22:24 +00:00
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
2011-04-21 23:39:26 +00:00
|
|
|
void MCAsmStreamer::EmitSLEB128Value(const MCExpr *Value) {
|
2010-11-19 04:10:13 +00:00
|
|
|
int64_t IntValue;
|
2015-05-30 01:25:56 +00:00
|
|
|
if (Value->evaluateAsAbsolute(IntValue)) {
|
2011-04-21 23:39:26 +00:00
|
|
|
EmitSLEB128IntValue(IntValue);
|
2010-11-19 04:10:13 +00:00
|
|
|
return;
|
|
|
|
}
|
2015-06-09 00:31:39 +00:00
|
|
|
OS << ".sleb128 ";
|
|
|
|
Value->print(OS, MAI);
|
2010-11-02 17:22:24 +00:00
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
2012-02-03 04:33:00 +00:00
|
|
|
void MCAsmStreamer::EmitGPRel64Value(const MCExpr *Value) {
|
2014-04-13 04:57:38 +00:00
|
|
|
assert(MAI->getGPRel64Directive() != nullptr);
|
2015-06-09 00:31:39 +00:00
|
|
|
OS << MAI->getGPRel64Directive();
|
|
|
|
Value->print(OS, MAI);
|
2012-02-03 04:33:00 +00:00
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
2010-01-25 21:28:50 +00:00
|
|
|
void MCAsmStreamer::EmitGPRel32Value(const MCExpr *Value) {
|
2014-04-13 04:57:38 +00:00
|
|
|
assert(MAI->getGPRel32Directive() != nullptr);
|
2015-06-09 00:31:39 +00:00
|
|
|
OS << MAI->getGPRel32Directive();
|
|
|
|
Value->print(OS, MAI);
|
2010-01-25 21:28:50 +00:00
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2010-01-19 18:52:28 +00:00
|
|
|
/// EmitFill - Emit NumBytes bytes worth of the value specified by
|
|
|
|
/// FillValue. This implements directives such as '.space'.
|
2013-07-02 15:49:13 +00:00
|
|
|
void MCAsmStreamer::EmitFill(uint64_t NumBytes, uint8_t FillValue) {
|
2010-01-19 18:58:52 +00:00
|
|
|
if (NumBytes == 0) return;
|
2010-09-22 18:16:55 +00:00
|
|
|
|
2013-07-02 15:49:13 +00:00
|
|
|
if (const char *ZeroDirective = MAI->getZeroDirective()) {
|
|
|
|
OS << ZeroDirective << NumBytes;
|
|
|
|
if (FillValue != 0)
|
|
|
|
OS << ',' << (int)FillValue;
|
|
|
|
EmitEOL();
|
|
|
|
return;
|
|
|
|
}
|
2010-01-19 19:46:13 +00:00
|
|
|
|
|
|
|
// Emit a byte at a time.
|
2013-07-02 15:49:13 +00:00
|
|
|
MCStreamer::EmitFill(NumBytes, FillValue);
|
2010-01-19 18:52:28 +00:00
|
|
|
}
|
|
|
|
|
2009-06-24 19:25:34 +00:00
|
|
|
void MCAsmStreamer::EmitValueToAlignment(unsigned ByteAlignment, int64_t Value,
|
|
|
|
unsigned ValueSize,
|
|
|
|
unsigned MaxBytesToEmit) {
|
2009-08-19 06:12:02 +00:00
|
|
|
// Some assemblers don't support non-power of two alignments, so we always
|
|
|
|
// emit alignments as a power of two if possible.
|
|
|
|
if (isPowerOf2_32(ByteAlignment)) {
|
2009-08-19 06:35:36 +00:00
|
|
|
switch (ValueSize) {
|
2014-02-04 18:39:51 +00:00
|
|
|
default:
|
|
|
|
llvm_unreachable("Invalid size for machine code value!");
|
|
|
|
case 1:
|
|
|
|
OS << "\t.align\t";
|
|
|
|
break;
|
|
|
|
case 2:
|
|
|
|
OS << ".p2alignw ";
|
|
|
|
break;
|
|
|
|
case 4:
|
|
|
|
OS << ".p2alignl ";
|
|
|
|
break;
|
|
|
|
case 8:
|
|
|
|
llvm_unreachable("Unsupported alignment size!");
|
2009-08-19 06:35:36 +00:00
|
|
|
}
|
2010-09-22 18:16:55 +00:00
|
|
|
|
2013-06-18 07:20:20 +00:00
|
|
|
if (MAI->getAlignmentIsInBytes())
|
2009-08-19 06:12:02 +00:00
|
|
|
OS << ByteAlignment;
|
|
|
|
else
|
|
|
|
OS << Log2_32(ByteAlignment);
|
|
|
|
|
|
|
|
if (Value || MaxBytesToEmit) {
|
2009-09-03 04:01:10 +00:00
|
|
|
OS << ", 0x";
|
|
|
|
OS.write_hex(truncateToSize(Value, ValueSize));
|
2009-06-24 19:25:34 +00:00
|
|
|
|
2010-09-22 18:16:55 +00:00
|
|
|
if (MaxBytesToEmit)
|
2009-08-19 06:12:02 +00:00
|
|
|
OS << ", " << MaxBytesToEmit;
|
|
|
|
}
|
2010-01-22 07:36:39 +00:00
|
|
|
EmitEOL();
|
2009-08-19 06:12:02 +00:00
|
|
|
return;
|
|
|
|
}
|
2010-09-22 18:16:55 +00:00
|
|
|
|
2009-08-19 06:12:02 +00:00
|
|
|
// Non-power of two alignment. This is not widely supported by assemblers.
|
2009-08-22 21:43:10 +00:00
|
|
|
// FIXME: Parameterize this based on MAI.
|
2009-06-24 19:25:34 +00:00
|
|
|
switch (ValueSize) {
|
2009-08-19 06:12:02 +00:00
|
|
|
default: llvm_unreachable("Invalid size for machine code value!");
|
|
|
|
case 1: OS << ".balign"; break;
|
|
|
|
case 2: OS << ".balignw"; break;
|
|
|
|
case 4: OS << ".balignl"; break;
|
|
|
|
case 8: llvm_unreachable("Unsupported alignment size!");
|
2009-06-24 19:25:34 +00:00
|
|
|
}
|
|
|
|
|
2009-08-19 06:12:02 +00:00
|
|
|
OS << ' ' << ByteAlignment;
|
2009-06-25 21:03:18 +00:00
|
|
|
OS << ", " << truncateToSize(Value, ValueSize);
|
2010-09-22 18:16:55 +00:00
|
|
|
if (MaxBytesToEmit)
|
2009-06-24 19:25:34 +00:00
|
|
|
OS << ", " << MaxBytesToEmit;
|
2010-01-22 07:36:39 +00:00
|
|
|
EmitEOL();
|
2009-06-24 19:25:34 +00:00
|
|
|
}
|
|
|
|
|
2010-02-23 18:26:34 +00:00
|
|
|
void MCAsmStreamer::EmitCodeAlignment(unsigned ByteAlignment,
|
|
|
|
unsigned MaxBytesToEmit) {
|
2010-02-23 18:44:31 +00:00
|
|
|
// Emit with a text fill value.
|
2013-06-18 07:20:20 +00:00
|
|
|
EmitValueToAlignment(ByteAlignment, MAI->getTextAlignFillValue(),
|
2010-02-23 18:44:31 +00:00
|
|
|
1, MaxBytesToEmit);
|
2010-02-23 18:26:34 +00:00
|
|
|
}
|
|
|
|
|
2012-01-27 00:37:08 +00:00
|
|
|
bool MCAsmStreamer::EmitValueToOffset(const MCExpr *Offset,
|
2009-06-24 19:25:34 +00:00
|
|
|
unsigned char Value) {
|
|
|
|
// FIXME: Verify that Offset is associated with the current section.
|
2015-06-09 00:31:39 +00:00
|
|
|
OS << ".org ";
|
|
|
|
Offset->print(OS, MAI);
|
|
|
|
OS << ", " << (unsigned)Value;
|
2010-01-22 07:36:39 +00:00
|
|
|
EmitEOL();
|
2012-01-27 00:37:08 +00:00
|
|
|
return false;
|
2009-06-24 19:25:34 +00:00
|
|
|
}
|
|
|
|
|
2010-01-25 18:58:59 +00:00
|
|
|
|
|
|
|
void MCAsmStreamer::EmitFileDirective(StringRef Filename) {
|
2013-06-18 07:20:20 +00:00
|
|
|
assert(MAI->hasSingleParameterDotFile());
|
2010-01-25 18:58:59 +00:00
|
|
|
OS << "\t.file\t";
|
|
|
|
PrintQuotedString(Filename, OS);
|
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
2014-03-17 01:52:11 +00:00
|
|
|
unsigned MCAsmStreamer::EmitDwarfFileDirective(unsigned FileNo,
|
|
|
|
StringRef Directory,
|
|
|
|
StringRef Filename,
|
|
|
|
unsigned CUID) {
|
2014-03-17 18:13:58 +00:00
|
|
|
assert(CUID == 0);
|
|
|
|
|
|
|
|
MCDwarfLineTable &Table = getContext().getMCDwarfLineTable(CUID);
|
|
|
|
unsigned NumFiles = Table.getMCDwarfFiles().size();
|
|
|
|
FileNo = Table.getFile(Directory, Filename, FileNo);
|
|
|
|
if (FileNo == 0)
|
|
|
|
return 0;
|
|
|
|
if (NumFiles == Table.getMCDwarfFiles().size())
|
|
|
|
return FileNo;
|
|
|
|
|
|
|
|
SmallString<128> FullPathName;
|
|
|
|
|
2011-10-17 23:05:28 +00:00
|
|
|
if (!UseDwarfDirectory && !Directory.empty()) {
|
|
|
|
if (sys::path::is_absolute(Filename))
|
2014-03-17 18:13:58 +00:00
|
|
|
Directory = "";
|
|
|
|
else {
|
|
|
|
FullPathName = Directory;
|
|
|
|
sys::path::append(FullPathName, Filename);
|
|
|
|
Directory = "";
|
|
|
|
Filename = FullPathName;
|
|
|
|
}
|
2011-10-17 23:05:28 +00:00
|
|
|
}
|
|
|
|
|
2014-02-05 18:00:21 +00:00
|
|
|
OS << "\t.file\t" << FileNo << ' ';
|
|
|
|
if (!Directory.empty()) {
|
|
|
|
PrintQuotedString(Directory, OS);
|
|
|
|
OS << ' ';
|
2010-11-19 02:26:16 +00:00
|
|
|
}
|
2014-02-05 18:00:21 +00:00
|
|
|
PrintQuotedString(Filename, OS);
|
|
|
|
EmitEOL();
|
|
|
|
|
2014-03-17 18:13:58 +00:00
|
|
|
return FileNo;
|
2010-11-16 21:20:32 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
void MCAsmStreamer::EmitDwarfLocDirective(unsigned FileNo, unsigned Line,
|
|
|
|
unsigned Column, unsigned Flags,
|
|
|
|
unsigned Isa,
|
2011-04-18 20:26:49 +00:00
|
|
|
unsigned Discriminator,
|
|
|
|
StringRef FileName) {
|
2010-11-16 21:20:32 +00:00
|
|
|
OS << "\t.loc\t" << FileNo << " " << Line << " " << Column;
|
|
|
|
if (Flags & DWARF2_FLAG_BASIC_BLOCK)
|
|
|
|
OS << " basic_block";
|
|
|
|
if (Flags & DWARF2_FLAG_PROLOGUE_END)
|
|
|
|
OS << " prologue_end";
|
|
|
|
if (Flags & DWARF2_FLAG_EPILOGUE_BEGIN)
|
|
|
|
OS << " epilogue_begin";
|
|
|
|
|
|
|
|
unsigned OldFlags = getContext().getCurrentDwarfLoc().getFlags();
|
|
|
|
if ((Flags & DWARF2_FLAG_IS_STMT) != (OldFlags & DWARF2_FLAG_IS_STMT)) {
|
|
|
|
OS << " is_stmt ";
|
|
|
|
|
|
|
|
if (Flags & DWARF2_FLAG_IS_STMT)
|
|
|
|
OS << "1";
|
|
|
|
else
|
|
|
|
OS << "0";
|
|
|
|
}
|
|
|
|
|
|
|
|
if (Isa)
|
2014-02-13 20:05:03 +00:00
|
|
|
OS << " isa " << Isa;
|
2010-11-16 21:20:32 +00:00
|
|
|
if (Discriminator)
|
2014-02-13 20:05:03 +00:00
|
|
|
OS << " discriminator " << Discriminator;
|
2011-04-18 20:26:49 +00:00
|
|
|
|
|
|
|
if (IsVerboseAsm) {
|
2013-06-18 07:20:20 +00:00
|
|
|
OS.PadToColumn(MAI->getCommentColumn());
|
|
|
|
OS << MAI->getCommentString() << ' ' << FileName << ':'
|
2011-04-18 20:26:49 +00:00
|
|
|
<< Line << ':' << Column;
|
|
|
|
}
|
2010-11-16 21:20:32 +00:00
|
|
|
EmitEOL();
|
2014-12-30 22:47:13 +00:00
|
|
|
this->MCStreamer::EmitDwarfLocDirective(FileNo, Line, Column, Flags,
|
|
|
|
Isa, Discriminator, FileName);
|
2010-01-25 18:58:59 +00:00
|
|
|
}
|
|
|
|
|
2014-04-01 08:07:52 +00:00
|
|
|
MCSymbol *MCAsmStreamer::getDwarfLineTableSymbol(unsigned CUID) {
|
|
|
|
// Always use the zeroth line table, since asm syntax only supports one line
|
|
|
|
// table for now.
|
|
|
|
return MCStreamer::getDwarfLineTableSymbol(0);
|
|
|
|
}
|
|
|
|
|
2013-10-16 01:05:45 +00:00
|
|
|
void MCAsmStreamer::EmitIdent(StringRef IdentString) {
|
|
|
|
assert(MAI->hasIdentDirective() && ".ident directive not supported");
|
|
|
|
OS << "\t.ident\t";
|
|
|
|
PrintQuotedString(IdentString, OS);
|
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
2011-05-10 13:39:48 +00:00
|
|
|
void MCAsmStreamer::EmitCFISections(bool EH, bool Debug) {
|
|
|
|
MCStreamer::EmitCFISections(EH, Debug);
|
|
|
|
OS << "\t.cfi_sections ";
|
|
|
|
if (EH) {
|
|
|
|
OS << ".eh_frame";
|
|
|
|
if (Debug)
|
|
|
|
OS << ", .debug_frame";
|
|
|
|
} else if (Debug) {
|
|
|
|
OS << ".debug_frame";
|
|
|
|
}
|
|
|
|
|
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
2014-11-03 12:19:03 +00:00
|
|
|
void MCAsmStreamer::EmitCFIStartProcImpl(MCDwarfFrameInfo &Frame) {
|
2011-01-14 21:57:39 +00:00
|
|
|
OS << "\t.cfi_startproc";
|
2014-01-27 17:20:25 +00:00
|
|
|
if (Frame.IsSimple)
|
|
|
|
OS << " simple";
|
2010-11-22 14:27:24 +00:00
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
2012-01-09 00:17:29 +00:00
|
|
|
void MCAsmStreamer::EmitCFIEndProcImpl(MCDwarfFrameInfo &Frame) {
|
2014-06-25 00:13:59 +00:00
|
|
|
MCStreamer::EmitCFIEndProcImpl(Frame);
|
2011-01-14 21:57:39 +00:00
|
|
|
OS << "\t.cfi_endproc";
|
2010-11-22 14:27:24 +00:00
|
|
|
EmitEOL();
|
2011-04-12 23:59:07 +00:00
|
|
|
}
|
2010-11-22 14:27:24 +00:00
|
|
|
|
2011-05-30 20:20:15 +00:00
|
|
|
void MCAsmStreamer::EmitRegisterName(int64_t Register) {
|
2015-05-27 12:13:06 +00:00
|
|
|
if (!MAI->useDwarfRegNumForCFI()) {
|
2013-06-18 07:20:20 +00:00
|
|
|
const MCRegisterInfo *MRI = getContext().getRegisterInfo();
|
|
|
|
unsigned LLVMRegister = MRI->getLLVMRegNum(Register, true);
|
2011-06-02 02:34:55 +00:00
|
|
|
InstPrinter->printRegName(OS, LLVMRegister);
|
2011-05-30 20:20:15 +00:00
|
|
|
} else {
|
|
|
|
OS << Register;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2011-04-12 23:59:07 +00:00
|
|
|
void MCAsmStreamer::EmitCFIDefCfa(int64_t Register, int64_t Offset) {
|
2011-04-29 21:41:06 +00:00
|
|
|
MCStreamer::EmitCFIDefCfa(Register, Offset);
|
2011-05-30 20:20:15 +00:00
|
|
|
OS << "\t.cfi_def_cfa ";
|
|
|
|
EmitRegisterName(Register);
|
|
|
|
OS << ", " << Offset;
|
2011-04-29 21:41:06 +00:00
|
|
|
EmitEOL();
|
2010-11-22 14:27:24 +00:00
|
|
|
}
|
|
|
|
|
2011-04-12 23:59:07 +00:00
|
|
|
void MCAsmStreamer::EmitCFIDefCfaOffset(int64_t Offset) {
|
|
|
|
MCStreamer::EmitCFIDefCfaOffset(Offset);
|
2011-01-14 21:57:39 +00:00
|
|
|
OS << "\t.cfi_def_cfa_offset " << Offset;
|
2010-11-22 14:27:24 +00:00
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
2011-04-12 23:59:07 +00:00
|
|
|
void MCAsmStreamer::EmitCFIDefCfaRegister(int64_t Register) {
|
|
|
|
MCStreamer::EmitCFIDefCfaRegister(Register);
|
2011-05-30 20:20:15 +00:00
|
|
|
OS << "\t.cfi_def_cfa_register ";
|
|
|
|
EmitRegisterName(Register);
|
2010-11-22 14:27:24 +00:00
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
2011-04-12 23:59:07 +00:00
|
|
|
void MCAsmStreamer::EmitCFIOffset(int64_t Register, int64_t Offset) {
|
|
|
|
this->MCStreamer::EmitCFIOffset(Register, Offset);
|
2011-05-30 20:20:15 +00:00
|
|
|
OS << "\t.cfi_offset ";
|
|
|
|
EmitRegisterName(Register);
|
|
|
|
OS << ", " << Offset;
|
2010-11-22 14:27:24 +00:00
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
2011-04-12 23:59:07 +00:00
|
|
|
void MCAsmStreamer::EmitCFIPersonality(const MCSymbol *Sym,
|
2010-12-27 00:36:05 +00:00
|
|
|
unsigned Encoding) {
|
2011-04-12 23:59:07 +00:00
|
|
|
MCStreamer::EmitCFIPersonality(Sym, Encoding);
|
2015-06-09 00:31:39 +00:00
|
|
|
OS << "\t.cfi_personality " << Encoding << ", ";
|
|
|
|
Sym->print(OS, MAI);
|
2010-11-22 14:27:24 +00:00
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
2011-04-12 23:59:07 +00:00
|
|
|
void MCAsmStreamer::EmitCFILsda(const MCSymbol *Sym, unsigned Encoding) {
|
|
|
|
MCStreamer::EmitCFILsda(Sym, Encoding);
|
2015-06-09 00:31:39 +00:00
|
|
|
OS << "\t.cfi_lsda " << Encoding << ", ";
|
|
|
|
Sym->print(OS, MAI);
|
2010-11-22 14:27:24 +00:00
|
|
|
EmitEOL();
|
2011-04-12 23:59:07 +00:00
|
|
|
}
|
2010-11-22 14:27:24 +00:00
|
|
|
|
2011-04-12 23:59:07 +00:00
|
|
|
void MCAsmStreamer::EmitCFIRememberState() {
|
|
|
|
MCStreamer::EmitCFIRememberState();
|
|
|
|
OS << "\t.cfi_remember_state";
|
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
|
|
|
void MCAsmStreamer::EmitCFIRestoreState() {
|
|
|
|
MCStreamer::EmitCFIRestoreState();
|
|
|
|
OS << "\t.cfi_restore_state";
|
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
|
|
|
void MCAsmStreamer::EmitCFISameValue(int64_t Register) {
|
|
|
|
MCStreamer::EmitCFISameValue(Register);
|
2011-05-30 20:20:15 +00:00
|
|
|
OS << "\t.cfi_same_value ";
|
|
|
|
EmitRegisterName(Register);
|
2011-04-12 23:59:07 +00:00
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
|
|
|
void MCAsmStreamer::EmitCFIRelOffset(int64_t Register, int64_t Offset) {
|
|
|
|
MCStreamer::EmitCFIRelOffset(Register, Offset);
|
2011-05-30 20:20:15 +00:00
|
|
|
OS << "\t.cfi_rel_offset ";
|
|
|
|
EmitRegisterName(Register);
|
|
|
|
OS << ", " << Offset;
|
2011-04-12 23:59:07 +00:00
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
|
|
|
void MCAsmStreamer::EmitCFIAdjustCfaOffset(int64_t Adjustment) {
|
|
|
|
MCStreamer::EmitCFIAdjustCfaOffset(Adjustment);
|
|
|
|
OS << "\t.cfi_adjust_cfa_offset " << Adjustment;
|
|
|
|
EmitEOL();
|
2010-11-22 14:27:24 +00:00
|
|
|
}
|
|
|
|
|
2012-01-23 21:51:52 +00:00
|
|
|
void MCAsmStreamer::EmitCFISignalFrame() {
|
|
|
|
MCStreamer::EmitCFISignalFrame();
|
2012-05-31 00:53:18 +00:00
|
|
|
OS << "\t.cfi_signal_frame";
|
2012-01-23 21:51:52 +00:00
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
2012-11-23 16:59:41 +00:00
|
|
|
void MCAsmStreamer::EmitCFIUndefined(int64_t Register) {
|
|
|
|
MCStreamer::EmitCFIUndefined(Register);
|
|
|
|
OS << "\t.cfi_undefined " << Register;
|
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
2012-11-25 15:14:49 +00:00
|
|
|
void MCAsmStreamer::EmitCFIRegister(int64_t Register1, int64_t Register2) {
|
|
|
|
MCStreamer::EmitCFIRegister(Register1, Register2);
|
|
|
|
OS << "\t.cfi_register " << Register1 << ", " << Register2;
|
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
2013-09-26 14:49:40 +00:00
|
|
|
void MCAsmStreamer::EmitCFIWindowSave() {
|
|
|
|
MCStreamer::EmitCFIWindowSave();
|
|
|
|
OS << "\t.cfi_window_save";
|
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
2014-06-29 01:52:01 +00:00
|
|
|
void MCAsmStreamer::EmitWinCFIStartProc(const MCSymbol *Symbol) {
|
|
|
|
MCStreamer::EmitWinCFIStartProc(Symbol);
|
2011-05-20 18:19:22 +00:00
|
|
|
|
2015-06-09 00:31:39 +00:00
|
|
|
OS << ".seh_proc ";
|
|
|
|
Symbol->print(OS, MAI);
|
2011-05-18 04:58:05 +00:00
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
2014-06-29 01:52:01 +00:00
|
|
|
void MCAsmStreamer::EmitWinCFIEndProc() {
|
|
|
|
MCStreamer::EmitWinCFIEndProc();
|
2011-05-20 18:19:22 +00:00
|
|
|
|
2011-05-19 17:46:39 +00:00
|
|
|
OS << "\t.seh_endproc";
|
2011-05-18 04:58:05 +00:00
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
2014-06-29 01:52:01 +00:00
|
|
|
void MCAsmStreamer::EmitWinCFIStartChained() {
|
|
|
|
MCStreamer::EmitWinCFIStartChained();
|
2011-05-20 18:19:22 +00:00
|
|
|
|
2011-05-19 17:46:39 +00:00
|
|
|
OS << "\t.seh_startchained";
|
2011-05-18 20:54:10 +00:00
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
2014-06-29 01:52:01 +00:00
|
|
|
void MCAsmStreamer::EmitWinCFIEndChained() {
|
|
|
|
MCStreamer::EmitWinCFIEndChained();
|
2011-05-20 18:19:22 +00:00
|
|
|
|
2011-05-19 17:46:39 +00:00
|
|
|
OS << "\t.seh_endchained";
|
2011-05-18 20:54:10 +00:00
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
2014-06-29 01:52:01 +00:00
|
|
|
void MCAsmStreamer::EmitWinEHHandler(const MCSymbol *Sym, bool Unwind,
|
|
|
|
bool Except) {
|
|
|
|
MCStreamer::EmitWinEHHandler(Sym, Unwind, Except);
|
2011-05-20 18:19:22 +00:00
|
|
|
|
2015-06-09 00:31:39 +00:00
|
|
|
OS << "\t.seh_handler ";
|
|
|
|
Sym->print(OS, MAI);
|
2011-05-19 17:46:39 +00:00
|
|
|
if (Unwind)
|
|
|
|
OS << ", @unwind";
|
|
|
|
if (Except)
|
|
|
|
OS << ", @except";
|
2011-05-18 20:54:10 +00:00
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
2014-06-29 01:52:01 +00:00
|
|
|
void MCAsmStreamer::EmitWinEHHandlerData() {
|
|
|
|
MCStreamer::EmitWinEHHandlerData();
|
2011-05-20 18:19:22 +00:00
|
|
|
|
2011-05-25 21:43:45 +00:00
|
|
|
// Switch sections. Don't call SwitchSection directly, because that will
|
|
|
|
// cause the section switch to be visible in the emitted assembly.
|
|
|
|
// We only do this so the section switch that terminates the handler
|
|
|
|
// data block is visible.
|
2014-08-03 18:51:17 +00:00
|
|
|
WinEH::FrameInfo *CurFrame = getCurrentWinFrameInfo();
|
2015-05-29 17:00:57 +00:00
|
|
|
MCSection *XData =
|
|
|
|
WinEH::UnwindEmitter::getXDataSection(CurFrame->Function, getContext());
|
|
|
|
SwitchSectionNoChange(XData);
|
2011-05-25 21:43:45 +00:00
|
|
|
|
2011-05-19 17:46:39 +00:00
|
|
|
OS << "\t.seh_handlerdata";
|
2011-05-18 20:54:10 +00:00
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
2014-06-29 01:52:01 +00:00
|
|
|
void MCAsmStreamer::EmitWinCFIPushReg(unsigned Register) {
|
|
|
|
MCStreamer::EmitWinCFIPushReg(Register);
|
2011-05-20 18:19:22 +00:00
|
|
|
|
2014-06-10 20:16:36 +00:00
|
|
|
OS << "\t.seh_pushreg " << Register;
|
2011-05-18 04:58:05 +00:00
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
2014-06-29 01:52:01 +00:00
|
|
|
void MCAsmStreamer::EmitWinCFISetFrame(unsigned Register, unsigned Offset) {
|
|
|
|
MCStreamer::EmitWinCFISetFrame(Register, Offset);
|
2011-05-20 18:19:22 +00:00
|
|
|
|
2014-06-10 20:16:36 +00:00
|
|
|
OS << "\t.seh_setframe " << Register << ", " << Offset;
|
2011-05-18 04:58:05 +00:00
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
2014-06-29 01:52:01 +00:00
|
|
|
void MCAsmStreamer::EmitWinCFIAllocStack(unsigned Size) {
|
|
|
|
MCStreamer::EmitWinCFIAllocStack(Size);
|
2011-05-20 18:19:22 +00:00
|
|
|
|
2011-05-19 17:46:39 +00:00
|
|
|
OS << "\t.seh_stackalloc " << Size;
|
2011-05-18 04:58:05 +00:00
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
2014-06-29 01:52:01 +00:00
|
|
|
void MCAsmStreamer::EmitWinCFISaveReg(unsigned Register, unsigned Offset) {
|
|
|
|
MCStreamer::EmitWinCFISaveReg(Register, Offset);
|
2011-05-20 18:19:22 +00:00
|
|
|
|
2014-06-10 20:16:36 +00:00
|
|
|
OS << "\t.seh_savereg " << Register << ", " << Offset;
|
2011-05-19 17:46:39 +00:00
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
2014-06-29 01:52:01 +00:00
|
|
|
void MCAsmStreamer::EmitWinCFISaveXMM(unsigned Register, unsigned Offset) {
|
|
|
|
MCStreamer::EmitWinCFISaveXMM(Register, Offset);
|
2011-05-20 18:19:22 +00:00
|
|
|
|
2014-06-10 20:16:36 +00:00
|
|
|
OS << "\t.seh_savexmm " << Register << ", " << Offset;
|
2011-05-18 04:58:05 +00:00
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
2014-06-29 01:52:01 +00:00
|
|
|
void MCAsmStreamer::EmitWinCFIPushFrame(bool Code) {
|
|
|
|
MCStreamer::EmitWinCFIPushFrame(Code);
|
2011-05-20 18:19:22 +00:00
|
|
|
|
2011-05-19 17:46:39 +00:00
|
|
|
OS << "\t.seh_pushframe";
|
2011-05-18 04:58:05 +00:00
|
|
|
if (Code)
|
2011-05-19 17:46:39 +00:00
|
|
|
OS << " @code";
|
2011-05-18 04:58:05 +00:00
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
2014-06-29 01:52:01 +00:00
|
|
|
void MCAsmStreamer::EmitWinCFIEndProlog(void) {
|
|
|
|
MCStreamer::EmitWinCFIEndProlog();
|
2011-05-20 18:19:22 +00:00
|
|
|
|
2011-05-19 17:46:39 +00:00
|
|
|
OS << "\t.seh_endprologue";
|
2011-05-18 04:58:05 +00:00
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
2014-01-28 23:13:07 +00:00
|
|
|
void MCAsmStreamer::AddEncodingComment(const MCInst &Inst,
|
|
|
|
const MCSubtargetInfo &STI) {
|
2010-02-09 23:00:14 +00:00
|
|
|
raw_ostream &OS = GetCommentOS();
|
|
|
|
SmallString<256> Code;
|
|
|
|
SmallVector<MCFixup, 4> Fixups;
|
2014-06-26 22:52:05 +00:00
|
|
|
raw_svector_ostream VecOS(Code);
|
2015-05-15 19:13:16 +00:00
|
|
|
Emitter->encodeInstruction(Inst, VecOS, Fixups, STI);
|
2014-06-26 22:52:05 +00:00
|
|
|
VecOS.flush();
|
2010-01-25 18:58:59 +00:00
|
|
|
|
2010-02-09 23:00:14 +00:00
|
|
|
// If we are showing fixups, create symbolic markers in the encoded
|
|
|
|
// representation. We do this by making a per-bit map to the fixup item index,
|
|
|
|
// then trying to display it as nicely as possible.
|
2010-02-10 01:41:14 +00:00
|
|
|
SmallVector<uint8_t, 64> FixupMap;
|
|
|
|
FixupMap.resize(Code.size() * 8);
|
2010-02-09 23:00:14 +00:00
|
|
|
for (unsigned i = 0, e = Code.size() * 8; i != e; ++i)
|
|
|
|
FixupMap[i] = 0;
|
|
|
|
|
|
|
|
for (unsigned i = 0, e = Fixups.size(); i != e; ++i) {
|
|
|
|
MCFixup &F = Fixups[i];
|
2010-12-16 03:20:06 +00:00
|
|
|
const MCFixupKindInfo &Info = AsmBackend->getFixupKindInfo(F.getKind());
|
2010-02-09 23:00:14 +00:00
|
|
|
for (unsigned j = 0; j != Info.TargetSize; ++j) {
|
|
|
|
unsigned Index = F.getOffset() * 8 + Info.TargetOffset + j;
|
|
|
|
assert(Index < Code.size() * 8 && "Invalid offset in fixup!");
|
|
|
|
FixupMap[Index] = 1 + i;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2011-07-08 22:49:42 +00:00
|
|
|
// FIXME: Note the fixup comments for Thumb2 are completely bogus since the
|
2011-01-13 23:27:39 +00:00
|
|
|
// high order halfword of a 32-bit Thumb2 instruction is emitted first.
|
2010-02-09 23:00:14 +00:00
|
|
|
OS << "encoding: [";
|
|
|
|
for (unsigned i = 0, e = Code.size(); i != e; ++i) {
|
|
|
|
if (i)
|
|
|
|
OS << ',';
|
|
|
|
|
|
|
|
// See if all bits are the same map entry.
|
|
|
|
uint8_t MapEntry = FixupMap[i * 8 + 0];
|
|
|
|
for (unsigned j = 1; j != 8; ++j) {
|
|
|
|
if (FixupMap[i * 8 + j] == MapEntry)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
MapEntry = uint8_t(~0U);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (MapEntry != uint8_t(~0U)) {
|
|
|
|
if (MapEntry == 0) {
|
|
|
|
OS << format("0x%02x", uint8_t(Code[i]));
|
|
|
|
} else {
|
2011-01-13 21:45:26 +00:00
|
|
|
if (Code[i]) {
|
2011-01-13 23:27:39 +00:00
|
|
|
// FIXME: Some of the 8 bits require fix up.
|
2011-01-13 21:45:26 +00:00
|
|
|
OS << format("0x%02x", uint8_t(Code[i])) << '\''
|
|
|
|
<< char('A' + MapEntry - 1) << '\'';
|
|
|
|
} else
|
|
|
|
OS << char('A' + MapEntry - 1);
|
2010-02-09 23:00:14 +00:00
|
|
|
}
|
|
|
|
} else {
|
|
|
|
// Otherwise, write out in binary.
|
|
|
|
OS << "0b";
|
2011-06-23 09:09:15 +00:00
|
|
|
for (unsigned j = 8; j--;) {
|
2010-02-09 23:00:14 +00:00
|
|
|
unsigned Bit = (Code[i] >> j) & 1;
|
2011-03-27 01:44:40 +00:00
|
|
|
|
2010-11-15 05:56:19 +00:00
|
|
|
unsigned FixupBit;
|
2013-06-18 07:20:20 +00:00
|
|
|
if (MAI->isLittleEndian())
|
2010-11-15 05:56:19 +00:00
|
|
|
FixupBit = i * 8 + j;
|
|
|
|
else
|
|
|
|
FixupBit = i * 8 + (7-j);
|
2011-03-27 01:44:40 +00:00
|
|
|
|
2011-06-23 09:09:15 +00:00
|
|
|
if (uint8_t MapEntry = FixupMap[FixupBit]) {
|
|
|
|
assert(Bit == 0 && "Encoder wrote into fixed up bit!");
|
|
|
|
OS << char('A' + MapEntry - 1);
|
2010-02-09 23:00:14 +00:00
|
|
|
} else
|
|
|
|
OS << Bit;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
OS << "]\n";
|
|
|
|
|
|
|
|
for (unsigned i = 0, e = Fixups.size(); i != e; ++i) {
|
|
|
|
MCFixup &F = Fixups[i];
|
2010-12-16 03:20:06 +00:00
|
|
|
const MCFixupKindInfo &Info = AsmBackend->getFixupKindInfo(F.getKind());
|
2010-02-09 23:00:14 +00:00
|
|
|
OS << " fixup " << char('A' + i) << " - " << "offset: " << F.getOffset()
|
2010-02-10 04:47:08 +00:00
|
|
|
<< ", value: " << *F.getValue() << ", kind: " << Info.Name << "\n";
|
2010-02-09 23:00:14 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2014-01-28 23:12:42 +00:00
|
|
|
void MCAsmStreamer::EmitInstruction(const MCInst &Inst, const MCSubtargetInfo &STI) {
|
2013-04-17 21:18:16 +00:00
|
|
|
assert(getCurrentSection().first &&
|
|
|
|
"Cannot emit contents before setting section!");
|
2010-02-09 23:00:14 +00:00
|
|
|
|
|
|
|
// Show the encoding in a comment if we have a code emitter.
|
|
|
|
if (Emitter)
|
2014-01-28 23:13:07 +00:00
|
|
|
AddEncodingComment(Inst, STI);
|
2010-02-09 23:00:14 +00:00
|
|
|
|
2010-02-09 00:54:51 +00:00
|
|
|
// Show the MCInst if enabled.
|
2010-05-26 15:18:13 +00:00
|
|
|
if (ShowInst) {
|
2015-02-05 00:58:51 +00:00
|
|
|
Inst.dump_pretty(GetCommentOS(), InstPrinter.get(), "\n ");
|
2010-05-26 15:18:13 +00:00
|
|
|
GetCommentOS() << "\n";
|
|
|
|
}
|
|
|
|
|
2015-06-18 20:43:22 +00:00
|
|
|
if(getTargetStreamer())
|
|
|
|
getTargetStreamer()->prettyPrintAsm(*InstPrinter, OS, Inst, STI);
|
|
|
|
else
|
|
|
|
InstPrinter->printInst(&Inst, OS, "", STI);
|
2015-05-27 12:13:06 +00:00
|
|
|
|
2010-01-22 07:36:39 +00:00
|
|
|
EmitEOL();
|
2009-06-24 01:03:06 +00:00
|
|
|
}
|
|
|
|
|
2012-12-20 19:05:53 +00:00
|
|
|
void MCAsmStreamer::EmitBundleAlignMode(unsigned AlignPow2) {
|
|
|
|
OS << "\t.bundle_align_mode " << AlignPow2;
|
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
2013-01-07 21:51:08 +00:00
|
|
|
void MCAsmStreamer::EmitBundleLock(bool AlignToEnd) {
|
2012-12-20 19:05:53 +00:00
|
|
|
OS << "\t.bundle_lock";
|
2013-01-07 21:51:08 +00:00
|
|
|
if (AlignToEnd)
|
|
|
|
OS << " align_to_end";
|
2012-12-20 19:05:53 +00:00
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
|
|
|
void MCAsmStreamer::EmitBundleUnlock() {
|
|
|
|
OS << "\t.bundle_unlock";
|
|
|
|
EmitEOL();
|
|
|
|
}
|
|
|
|
|
2010-09-22 18:18:30 +00:00
|
|
|
/// EmitRawText - If this file is backed by an assembly streamer, this dumps
|
2010-04-03 21:35:55 +00:00
|
|
|
/// the specified string in the output .s file. This capability is
|
|
|
|
/// indicated by the hasRawTextSupport() predicate.
|
2013-10-24 22:43:10 +00:00
|
|
|
void MCAsmStreamer::EmitRawTextImpl(StringRef String) {
|
2010-04-03 22:06:56 +00:00
|
|
|
if (!String.empty() && String.back() == '\n')
|
|
|
|
String = String.substr(0, String.size()-1);
|
2010-04-03 21:35:55 +00:00
|
|
|
OS << String;
|
2010-04-03 22:06:56 +00:00
|
|
|
EmitEOL();
|
2010-04-03 21:35:55 +00:00
|
|
|
}
|
|
|
|
|
2012-01-07 03:13:18 +00:00
|
|
|
void MCAsmStreamer::FinishImpl() {
|
2011-12-09 18:09:40 +00:00
|
|
|
// If we are generating dwarf for assembly source files dump out the sections.
|
|
|
|
if (getContext().getGenDwarfForAssembly())
|
2014-04-01 07:35:52 +00:00
|
|
|
MCGenDwarfInfo::Emit(this);
|
|
|
|
|
|
|
|
// Emit the label for the line table, if requested - since the rest of the
|
|
|
|
// line table will be defined by .loc/.file directives, and not emitted
|
|
|
|
// directly, the label is the only work required here.
|
|
|
|
auto &Tables = getContext().getMCDwarfLineTables();
|
|
|
|
if (!Tables.empty()) {
|
2014-04-01 08:07:52 +00:00
|
|
|
assert(Tables.size() == 1 && "asm output only supports one line table");
|
2014-04-01 07:35:52 +00:00
|
|
|
if (auto *Label = Tables.begin()->second.getLabel()) {
|
|
|
|
SwitchSection(getContext().getObjectFileInfo()->getDwarfLineSection());
|
|
|
|
EmitLabel(Label);
|
|
|
|
}
|
|
|
|
}
|
2009-06-24 01:03:06 +00:00
|
|
|
}
|
2013-09-09 19:48:37 +00:00
|
|
|
|
2010-01-22 07:29:22 +00:00
|
|
|
MCStreamer *llvm::createAsmStreamer(MCContext &Context,
|
2015-04-09 21:06:08 +00:00
|
|
|
std::unique_ptr<formatted_raw_ostream> OS,
|
2014-05-07 13:00:43 +00:00
|
|
|
bool isVerboseAsm, bool useDwarfDirectory,
|
|
|
|
MCInstPrinter *IP, MCCodeEmitter *CE,
|
|
|
|
MCAsmBackend *MAB, bool ShowInst) {
|
2015-04-09 21:06:08 +00:00
|
|
|
return new MCAsmStreamer(Context, std::move(OS), isVerboseAsm,
|
|
|
|
useDwarfDirectory, IP, CE, MAB, ShowInst);
|
2009-06-24 01:03:06 +00:00
|
|
|
}
|