[llvm-commits] [llvm] r169603 - in /llvm/trunk: include/llvm/MC/MCELFStreamer.h lib/MC/MCELFStreamer.cpp
Logan Chien
tzuhsiang.chien at gmail.com
Fri Dec 7 07:50:40 PST 2012
Author: logan
Date: Fri Dec 7 09:50:40 2012
New Revision: 169603
URL: http://llvm.org/viewvc/llvm-project?rev=169603&view=rev
Log:
Split MCELFStreamer into a header file.
Added:
llvm/trunk/include/llvm/MC/MCELFStreamer.h
Modified:
llvm/trunk/lib/MC/MCELFStreamer.cpp
Added: llvm/trunk/include/llvm/MC/MCELFStreamer.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/MC/MCELFStreamer.h?rev=169603&view=auto
==============================================================================
--- llvm/trunk/include/llvm/MC/MCELFStreamer.h (added)
+++ llvm/trunk/include/llvm/MC/MCELFStreamer.h Fri Dec 7 09:50:40 2012
@@ -0,0 +1,109 @@
+//===- MCELFStreamer.h - MCStreamer ELF Object File Interface ---*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_MC_MCELFSTREAMER_H
+#define LLVM_MC_MCELFSTREAMER_H
+
+#include "llvm/ADT/SmallPtrSet.h"
+#include "llvm/MC/MCDirectives.h"
+#include "llvm/MC/MCObjectStreamer.h"
+#include "llvm/MC/SectionKind.h"
+
+#include <vector>
+
+#include <stdint.h>
+
+namespace llvm {
+class MCAsmBackend;
+class MCAssembler;
+class MCCodeEmitter;
+class MCExpr;
+class MCInst;
+class MCSymbol;
+class MCSymbolData;
+class raw_ostream;
+
+class MCELFStreamer : public MCObjectStreamer {
+public:
+ MCELFStreamer(MCContext &Context, MCAsmBackend &TAB,
+ raw_ostream &OS, MCCodeEmitter *Emitter)
+ : MCObjectStreamer(Context, TAB, OS, Emitter) {}
+
+ MCELFStreamer(MCContext &Context, MCAsmBackend &TAB,
+ raw_ostream &OS, MCCodeEmitter *Emitter,
+ MCAssembler *Assembler)
+ : MCObjectStreamer(Context, TAB, OS, Emitter, Assembler) {}
+
+ virtual ~MCELFStreamer();
+
+ /// @name MCStreamer Interface
+ /// @{
+
+ virtual void InitSections();
+ virtual void ChangeSection(const MCSection *Section);
+ virtual void EmitLabel(MCSymbol *Symbol);
+ virtual void EmitAssemblerFlag(MCAssemblerFlag Flag);
+ virtual void EmitThumbFunc(MCSymbol *Func);
+ virtual void EmitAssignment(MCSymbol *Symbol, const MCExpr *Value);
+ virtual void EmitWeakReference(MCSymbol *Alias, const MCSymbol *Symbol);
+ virtual void EmitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute);
+ virtual void EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue);
+ virtual void EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
+ unsigned ByteAlignment);
+ virtual void BeginCOFFSymbolDef(const MCSymbol *Symbol);
+ virtual void EmitCOFFSymbolStorageClass(int StorageClass);
+ virtual void EmitCOFFSymbolType(int Type);
+ virtual void EndCOFFSymbolDef();
+
+ virtual void EmitELFSize(MCSymbol *Symbol, const MCExpr *Value);
+
+ virtual void EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size,
+ unsigned ByteAlignment);
+
+ virtual void EmitZerofill(const MCSection *Section, MCSymbol *Symbol = 0,
+ uint64_t Size = 0, unsigned ByteAlignment = 0);
+ virtual void EmitTBSSSymbol(const MCSection *Section, MCSymbol *Symbol,
+ uint64_t Size, unsigned ByteAlignment = 0);
+ virtual void EmitValueImpl(const MCExpr *Value, unsigned Size,
+ unsigned AddrSpace);
+
+ virtual void EmitFileDirective(StringRef Filename);
+
+ virtual void EmitTCEntry(const MCSymbol &S);
+
+ virtual void FinishImpl();
+ /// @}
+
+private:
+ virtual void EmitInstToFragment(const MCInst &Inst);
+ virtual void EmitInstToData(const MCInst &Inst);
+
+ void fixSymbolsInTLSFixups(const MCExpr *expr);
+
+ struct LocalCommon {
+ MCSymbolData *SD;
+ uint64_t Size;
+ unsigned ByteAlignment;
+ };
+
+ std::vector<LocalCommon> LocalCommons;
+
+ SmallPtrSet<MCSymbol *, 16> BindingExplicitlySet;
+
+
+ void SetSection(StringRef Section, unsigned Type, unsigned Flags,
+ SectionKind Kind);
+ void SetSectionData();
+ void SetSectionText();
+ void SetSectionBss();
+};
+
+} // end namespace llvm
+
+#endif
Modified: llvm/trunk/lib/MC/MCELFStreamer.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/MC/MCELFStreamer.cpp?rev=169603&r1=169602&r2=169603&view=diff
==============================================================================
--- llvm/trunk/lib/MC/MCELFStreamer.cpp (original)
+++ llvm/trunk/lib/MC/MCELFStreamer.cpp Fri Dec 7 09:50:40 2012
@@ -11,7 +11,8 @@
//
//===----------------------------------------------------------------------===//
-#include "llvm/MC/MCStreamer.h"
+#include "llvm/MC/MCELFStreamer.h"
+
#include "MCELF.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/StringExtras.h"
@@ -35,117 +36,37 @@
using namespace llvm;
-namespace {
-class MCELFStreamer : public MCObjectStreamer {
-public:
- MCELFStreamer(MCContext &Context, MCAsmBackend &TAB,
- raw_ostream &OS, MCCodeEmitter *Emitter)
- : MCObjectStreamer(Context, TAB, OS, Emitter) {}
-
- MCELFStreamer(MCContext &Context, MCAsmBackend &TAB,
- raw_ostream &OS, MCCodeEmitter *Emitter,
- MCAssembler *Assembler)
- : MCObjectStreamer(Context, TAB, OS, Emitter, Assembler) {}
-
-
- ~MCELFStreamer() {}
-
- /// @name MCStreamer Interface
- /// @{
-
- virtual void InitSections();
- virtual void ChangeSection(const MCSection *Section);
- virtual void EmitLabel(MCSymbol *Symbol);
- virtual void EmitAssemblerFlag(MCAssemblerFlag Flag);
- virtual void EmitThumbFunc(MCSymbol *Func);
- virtual void EmitAssignment(MCSymbol *Symbol, const MCExpr *Value);
- virtual void EmitWeakReference(MCSymbol *Alias, const MCSymbol *Symbol);
- virtual void EmitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute);
- virtual void EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue) {
- llvm_unreachable("ELF doesn't support this directive");
- }
- virtual void EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
- unsigned ByteAlignment);
- virtual void BeginCOFFSymbolDef(const MCSymbol *Symbol) {
- llvm_unreachable("ELF doesn't support this directive");
- }
-
- virtual void EmitCOFFSymbolStorageClass(int StorageClass) {
- llvm_unreachable("ELF doesn't support this directive");
- }
-
- virtual void EmitCOFFSymbolType(int Type) {
- llvm_unreachable("ELF doesn't support this directive");
- }
-
- virtual void EndCOFFSymbolDef() {
- llvm_unreachable("ELF doesn't support this directive");
- }
-
- virtual void EmitELFSize(MCSymbol *Symbol, const MCExpr *Value) {
- MCSymbolData &SD = getAssembler().getOrCreateSymbolData(*Symbol);
- SD.setSize(Value);
- }
-
- virtual void EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size,
- unsigned ByteAlignment);
-
- virtual void EmitZerofill(const MCSection *Section, MCSymbol *Symbol = 0,
- uint64_t Size = 0, unsigned ByteAlignment = 0) {
- llvm_unreachable("ELF doesn't support this directive");
- }
- virtual void EmitTBSSSymbol(const MCSection *Section, MCSymbol *Symbol,
- uint64_t Size, unsigned ByteAlignment = 0) {
- llvm_unreachable("ELF doesn't support this directive");
- }
- virtual void EmitValueImpl(const MCExpr *Value, unsigned Size,
- unsigned AddrSpace);
-
- virtual void EmitFileDirective(StringRef Filename);
-
- virtual void EmitTCEntry(const MCSymbol &S);
- virtual void FinishImpl();
-
-private:
- virtual void EmitInstToFragment(const MCInst &Inst);
- virtual void EmitInstToData(const MCInst &Inst);
+inline void MCELFStreamer::SetSection(StringRef Section, unsigned Type,
+ unsigned Flags, SectionKind Kind) {
+ SwitchSection(getContext().getELFSection(Section, Type, Flags, Kind));
+}
- void fixSymbolsInTLSFixups(const MCExpr *expr);
+inline void MCELFStreamer::SetSectionData() {
+ SetSection(".data",
+ ELF::SHT_PROGBITS,
+ ELF::SHF_WRITE | ELF::SHF_ALLOC,
+ SectionKind::getDataRel());
+ EmitCodeAlignment(4, 0);
+}
- struct LocalCommon {
- MCSymbolData *SD;
- uint64_t Size;
- unsigned ByteAlignment;
- };
- std::vector<LocalCommon> LocalCommons;
+inline void MCELFStreamer::SetSectionText() {
+ SetSection(".text",
+ ELF::SHT_PROGBITS,
+ ELF::SHF_EXECINSTR | ELF::SHF_ALLOC,
+ SectionKind::getText());
+ EmitCodeAlignment(4, 0);
+}
- SmallPtrSet<MCSymbol *, 16> BindingExplicitlySet;
- /// @}
- void SetSection(StringRef Section, unsigned Type, unsigned Flags,
- SectionKind Kind) {
- SwitchSection(getContext().getELFSection(Section, Type, Flags, Kind));
- }
+inline void MCELFStreamer::SetSectionBss() {
+ SetSection(".bss",
+ ELF::SHT_NOBITS,
+ ELF::SHF_WRITE | ELF::SHF_ALLOC,
+ SectionKind::getBSS());
+ EmitCodeAlignment(4, 0);
+}
- void SetSectionData() {
- SetSection(".data", ELF::SHT_PROGBITS,
- ELF::SHF_WRITE |ELF::SHF_ALLOC,
- SectionKind::getDataRel());
- EmitCodeAlignment(4, 0);
- }
- void SetSectionText() {
- SetSection(".text", ELF::SHT_PROGBITS,
- ELF::SHF_EXECINSTR |
- ELF::SHF_ALLOC, SectionKind::getText());
- EmitCodeAlignment(4, 0);
- }
- void SetSectionBss() {
- SetSection(".bss", ELF::SHT_NOBITS,
- ELF::SHF_WRITE |
- ELF::SHF_ALLOC, SectionKind::getBSS());
- EmitCodeAlignment(4, 0);
- }
-};
+MCELFStreamer::~MCELFStreamer() {
}
void MCELFStreamer::InitSections() {
@@ -341,6 +262,11 @@
SD.setSize(MCConstantExpr::Create(Size, getContext()));
}
+void MCELFStreamer::EmitELFSize(MCSymbol *Symbol, const MCExpr *Value) {
+ MCSymbolData &SD = getAssembler().getOrCreateSymbolData(*Symbol);
+ SD.setSize(Value);
+}
+
void MCELFStreamer::EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size,
unsigned ByteAlignment) {
// FIXME: Should this be caught and done earlier?
@@ -487,3 +413,33 @@
S->getAssembler().setNoExecStack(true);
return S;
}
+
+void MCELFStreamer::EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue) {
+ llvm_unreachable("ELF doesn't support this directive");
+}
+
+void MCELFStreamer::BeginCOFFSymbolDef(const MCSymbol *Symbol) {
+ llvm_unreachable("ELF doesn't support this directive");
+}
+
+void MCELFStreamer::EmitCOFFSymbolStorageClass(int StorageClass) {
+ llvm_unreachable("ELF doesn't support this directive");
+}
+
+void MCELFStreamer::EmitCOFFSymbolType(int Type) {
+ llvm_unreachable("ELF doesn't support this directive");
+}
+
+void MCELFStreamer::EndCOFFSymbolDef() {
+ llvm_unreachable("ELF doesn't support this directive");
+}
+
+void MCELFStreamer::EmitZerofill(const MCSection *Section, MCSymbol *Symbol,
+ uint64_t Size, unsigned ByteAlignment) {
+ llvm_unreachable("ELF doesn't support this directive");
+}
+
+void MCELFStreamer::EmitTBSSSymbol(const MCSection *Section, MCSymbol *Symbol,
+ uint64_t Size, unsigned ByteAlignment) {
+ llvm_unreachable("ELF doesn't support this directive");
+}
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