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-rw-r--r--include/llvm/CodeGen/MachineModuleInfo.h3
-rw-r--r--include/llvm/MC/MCContext.h7
-rw-r--r--include/llvm/MC/MCDwarf.h18
-rw-r--r--include/llvm/MC/MCObjectStreamer.h3
-rw-r--r--include/llvm/MC/MCStreamer.h39
-rw-r--r--include/llvm/Target/TargetAsmBackend.h4
-rw-r--r--include/llvm/Target/TargetAsmInfo.h75
-rw-r--r--include/llvm/Target/TargetRegistry.h9
-rw-r--r--lib/CodeGen/ELFWriter.cpp3
-rw-r--r--lib/CodeGen/LLVMTargetMachine.cpp31
-rw-r--r--lib/CodeGen/MachineModuleInfo.cpp7
-rw-r--r--lib/CodeGen/TargetLoweringObjectFileImpl.cpp2
-rw-r--r--lib/MC/MCAsmStreamer.cpp63
-rw-r--r--lib/MC/MCContext.cpp8
-rw-r--r--lib/MC/MCDisassembler/EDDisassembler.cpp2
-rw-r--r--lib/MC/MCDwarf.cpp210
-rw-r--r--lib/MC/MCELFStreamer.cpp11
-rw-r--r--lib/MC/MCLoggingStreamer.cpp5
-rw-r--r--lib/MC/MCMachOStreamer.cpp10
-rw-r--r--lib/MC/MCNullStreamer.cpp4
-rw-r--r--lib/MC/MCObjectStreamer.cpp14
-rw-r--r--lib/MC/MCStreamer.cpp58
-rw-r--r--lib/Target/CBackend/CBackend.cpp2
-rw-r--r--lib/Target/CMakeLists.txt1
-rw-r--r--lib/Target/PTX/PTXMCAsmStreamer.cpp25
-rw-r--r--lib/Target/PTX/PTXTargetMachine.cpp2
-rw-r--r--lib/Target/TargetAsmInfo.cpp27
-rw-r--r--lib/Target/X86/X86AsmBackend.cpp23
-rw-r--r--test/MC/ELF/cfi.s41
-rw-r--r--test/MC/ELF/empty-dwarf-lines.s2
-rw-r--r--tools/llvm-mc/llvm-mc.cpp17
-rw-r--r--tools/lto/LTOCodeGenerator.cpp2
-rw-r--r--tools/lto/LTOModule.cpp2
33 files changed, 554 insertions, 176 deletions
diff --git a/include/llvm/CodeGen/MachineModuleInfo.h b/include/llvm/CodeGen/MachineModuleInfo.h
index febb9dd990b..9ea27b4b027 100644
--- a/include/llvm/CodeGen/MachineModuleInfo.h
+++ b/include/llvm/CodeGen/MachineModuleInfo.h
@@ -170,7 +170,8 @@ public:
VariableDbgInfoMapTy VariableDbgInfo;
MachineModuleInfo(); // DUMMY CONSTRUCTOR, DO NOT CALL.
- MachineModuleInfo(const MCAsmInfo &MAI); // Real constructor.
+ // Real constructor.
+ MachineModuleInfo(const MCAsmInfo &MAI, const TargetAsmInfo *TAI);
~MachineModuleInfo();
bool doInitialization();
diff --git a/include/llvm/MC/MCContext.h b/include/llvm/MC/MCContext.h
index 7968e1e27d9..7b26d549377 100644
--- a/include/llvm/MC/MCContext.h
+++ b/include/llvm/MC/MCContext.h
@@ -29,6 +29,7 @@ namespace llvm {
class MCLineSection;
class StringRef;
class Twine;
+ class TargetAsmInfo;
class MCSectionMachO;
class MCSectionELF;
@@ -42,6 +43,8 @@ namespace llvm {
/// The MCAsmInfo for this target.
const MCAsmInfo &MAI;
+ const TargetAsmInfo *TAI;
+
/// Symbols - Bindings of names to symbols.
StringMap<MCSymbol*> Symbols;
@@ -99,11 +102,13 @@ namespace llvm {
MCSymbol *CreateSymbol(StringRef Name);
public:
- explicit MCContext(const MCAsmInfo &MAI);
+ explicit MCContext(const MCAsmInfo &MAI, const TargetAsmInfo *TAI);
~MCContext();
const MCAsmInfo &getAsmInfo() const { return MAI; }
+ const TargetAsmInfo &getTargetAsmInfo() const { return *TAI; }
+
/// @name Symbol Management
/// @{
diff --git a/include/llvm/MC/MCDwarf.h b/include/llvm/MC/MCDwarf.h
index 46177be2303..81e06514281 100644
--- a/include/llvm/MC/MCDwarf.h
+++ b/include/llvm/MC/MCDwarf.h
@@ -22,6 +22,7 @@
#include <vector>
namespace llvm {
+ class MachineMove;
class MCContext;
class MCSection;
class MCSectionData;
@@ -208,7 +209,7 @@ namespace llvm {
//
// This emits the Dwarf file and the line tables.
//
- static void Emit(MCStreamer *MCOS, const MCSection *DwarfLineSection);
+ static void Emit(MCStreamer *MCOS);
};
class MCDwarfLineAddr {
@@ -224,6 +225,21 @@ namespace llvm {
static void Write(MCObjectWriter *OW,
int64_t LineDelta, uint64_t AddrDelta);
};
+
+ struct MCDwarfFrameInfo {
+ MCSymbol *Begin;
+ MCSymbol *End;
+ const MCSymbol *Personality;
+ const MCSymbol *Lsda;
+ };
+
+ class MCDwarfFrameEmitter {
+ public:
+ //
+ // This emits the frame info section.
+ //
+ static void Emit(MCStreamer &streamer);
+ };
} // end namespace llvm
#endif
diff --git a/include/llvm/MC/MCObjectStreamer.h b/include/llvm/MC/MCObjectStreamer.h
index c6dd96068ff..17ba09e3a0b 100644
--- a/include/llvm/MC/MCObjectStreamer.h
+++ b/include/llvm/MC/MCObjectStreamer.h
@@ -59,7 +59,8 @@ public:
/// @{
virtual void EmitLabel(MCSymbol *Symbol);
- virtual void EmitValue(const MCExpr *Value, unsigned Size,unsigned AddrSpace);
+ virtual void EmitValueImpl(const MCExpr *Value, unsigned Size,
+ bool isPCRel, unsigned AddrSpace);
virtual void EmitULEB128Value(const MCExpr *Value, unsigned AddrSpace = 0);
virtual void EmitSLEB128Value(const MCExpr *Value, unsigned AddrSpace = 0);
virtual void EmitWeakReference(MCSymbol *Alias, const MCSymbol *Symbol);
diff --git a/include/llvm/MC/MCStreamer.h b/include/llvm/MC/MCStreamer.h
index d4c759d248c..00c1600b324 100644
--- a/include/llvm/MC/MCStreamer.h
+++ b/include/llvm/MC/MCStreamer.h
@@ -16,6 +16,7 @@
#include "llvm/Support/DataTypes.h"
#include "llvm/MC/MCDirectives.h"
+#include "llvm/MC/MCDwarf.h"
namespace llvm {
class MCAsmInfo;
@@ -48,6 +49,9 @@ namespace llvm {
MCStreamer(const MCStreamer&); // DO NOT IMPLEMENT
MCStreamer &operator=(const MCStreamer&); // DO NOT IMPLEMENT
+ void EmitSymbolValue(const MCSymbol *Sym, unsigned Size,
+ bool isPCRel, unsigned AddrSpace);
+
protected:
MCStreamer(MCContext &Ctx);
@@ -59,11 +63,23 @@ namespace llvm {
/// is kept up to date by SwitchSection.
const MCSection *PrevSection;
+ std::vector<MCDwarfFrameInfo> FrameInfos;
+ MCDwarfFrameInfo *getCurrentFrameInfo();
+ void EnsureValidFrame();
+
public:
virtual ~MCStreamer();
MCContext &getContext() const { return Context; }
+ unsigned getNumFrameInfos() {
+ return FrameInfos.size();
+ }
+
+ const MCDwarfFrameInfo &getFrameInfo(unsigned i) {
+ return FrameInfos[i];
+ }
+
/// @name Assembly File Formatting.
/// @{
@@ -241,8 +257,13 @@ namespace llvm {
/// @param Value - The value to emit.
/// @param Size - The size of the integer (in bytes) to emit. This must
/// match a native machine width.
- virtual void EmitValue(const MCExpr *Value, unsigned Size,
- unsigned AddrSpace = 0) = 0;
+ virtual void EmitValueImpl(const MCExpr *Value, unsigned Size,
+ bool isPCRel, unsigned AddrSpace) = 0;
+
+ void EmitValue(const MCExpr *Value, unsigned Size, unsigned AddrSpace = 0);
+
+ void EmitPCRelValue(const MCExpr *Value, unsigned Size,
+ unsigned AddrSpace = 0);
/// EmitIntValue - Special case of EmitValue that avoids the client having
/// to pass in a MCExpr for constant integers.
@@ -275,6 +296,9 @@ namespace llvm {
void EmitSymbolValue(const MCSymbol *Sym, unsigned Size,
unsigned AddrSpace = 0);
+ void EmitPCRelSymbolValue(const MCSymbol *Sym, unsigned Size,
+ unsigned AddrSpace = 0);
+
/// EmitGPRel32Value - Emit the expression @p Value into the output as a
/// gprel32 (32-bit GP relative) value.
///
@@ -405,19 +429,12 @@ namespace llvm {
/// \param ShowInst - Whether to show the MCInst representation inline with
/// the assembly.
MCStreamer *createAsmStreamer(MCContext &Ctx, formatted_raw_ostream &OS,
- bool isLittleEndian, bool isVerboseAsm,
+ bool isVerboseAsm,
+ bool useLoc,
MCInstPrinter *InstPrint = 0,
MCCodeEmitter *CE = 0,
bool ShowInst = false);
- MCStreamer *createAsmStreamerNoLoc(MCContext &Ctx, formatted_raw_ostream &OS,
- bool isLittleEndian, bool isVerboseAsm,
- const TargetLoweringObjectFile *TLOF,
- int PointerSize,
- MCInstPrinter *InstPrint = 0,
- MCCodeEmitter *CE = 0,
- bool ShowInst = false);
-
/// createMachOStreamer - Create a machine code streamer which will generate
/// Mach-O format object files.
///
diff --git a/include/llvm/Target/TargetAsmBackend.h b/include/llvm/Target/TargetAsmBackend.h
index 4805e1966f2..e204a5fed57 100644
--- a/include/llvm/Target/TargetAsmBackend.h
+++ b/include/llvm/Target/TargetAsmBackend.h
@@ -21,7 +21,6 @@ class MCObjectWriter;
class MCSection;
template<typename T>
class SmallVectorImpl;
-class Target;
class raw_ostream;
/// TargetAsmBackend - Generic interface to target specific assembler backends.
@@ -81,9 +80,6 @@ public:
return true;
}
- /// getPointerSize - Get the pointer size in bytes.
- virtual unsigned getPointerSize() const = 0;
-
/// ApplyFixup - Apply the \arg Value for given \arg Fixup into the provided
/// data fragment, at the offset specified by the fixup and following the
/// fixup kind as appropriate.
diff --git a/include/llvm/Target/TargetAsmInfo.h b/include/llvm/Target/TargetAsmInfo.h
new file mode 100644
index 00000000000..cfe60e671a6
--- /dev/null
+++ b/include/llvm/Target/TargetAsmInfo.h
@@ -0,0 +1,75 @@
+//===-- llvm/Target/TargetAsmInfo.h -----------------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Interface to provide the information necessary for producing assembly files.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_TARGET_TARGETASMINFO_H
+#define LLVM_TARGET_TARGETASMINFO_H
+
+#include "llvm/CodeGen/MachineLocation.h"
+#include "llvm/Target/TargetLoweringObjectFile.h"
+#include "llvm/Target/TargetFrameInfo.h"
+#include "llvm/Target/TargetRegisterInfo.h"
+
+namespace llvm {
+ class MCSection;
+ class MCContext;
+ class TargetMachine;
+ class TargetLoweringObjectFile;
+
+class TargetAsmInfo {
+ unsigned PointerSize;
+ bool IsLittleEndian;
+ TargetFrameInfo::StackDirection StackDir;
+ const TargetRegisterInfo *TRI;
+ std::vector<MachineMove> InitialFrameState;
+ const TargetLoweringObjectFile *TLOF;
+
+public:
+ explicit TargetAsmInfo(const TargetMachine &TM);
+
+ /// getPointerSize - Get the pointer size in bytes.
+ unsigned getPointerSize() const {
+ return PointerSize;
+ }
+
+ /// islittleendian - True if the target is little endian.
+ bool isLittleEndian() const {
+ return IsLittleEndian;
+ }
+
+ TargetFrameInfo::StackDirection getStackGrowthDirection() const {
+ return StackDir;
+ }
+
+ const MCSection *getDwarfLineSection() const {
+ return TLOF->getDwarfLineSection();
+ }
+
+ const MCSection *getEHFrameSection() const {
+ return TLOF->getEHFrameSection();
+ }
+
+ unsigned getDwarfRARegNum(bool isEH) const {
+ return TRI->getDwarfRegNum(TRI->getRARegister(), isEH);
+ }
+
+ const std::vector<MachineMove> &getInitialFrameState() const {
+ return InitialFrameState;
+ }
+
+ int getDwarfRegNum(unsigned RegNum, bool isEH) const {
+ return TRI->getDwarfRegNum(RegNum, isEH);
+ }
+};
+
+}
+#endif
diff --git a/include/llvm/Target/TargetRegistry.h b/include/llvm/Target/TargetRegistry.h
index abffb5852a6..fe2146b8d8f 100644
--- a/include/llvm/Target/TargetRegistry.h
+++ b/include/llvm/Target/TargetRegistry.h
@@ -42,7 +42,8 @@ namespace llvm {
class formatted_raw_ostream;
MCStreamer *createAsmStreamer(MCContext &Ctx, formatted_raw_ostream &OS,
- bool isLittleEndian, bool isVerboseAsm,
+ bool isVerboseAsm,
+ bool useLoc,
MCInstPrinter *InstPrint,
MCCodeEmitter *CE,
bool ShowInst);
@@ -90,8 +91,8 @@ namespace llvm {
bool RelaxAll);
typedef MCStreamer *(*AsmStreamerCtorTy)(MCContext &Ctx,
formatted_raw_ostream &OS,
- bool isLittleEndian,
bool isVerboseAsm,
+ bool useLoc,
MCInstPrinter *InstPrint,
MCCodeEmitter *CE,
bool ShowInst);
@@ -318,13 +319,13 @@ namespace llvm {
/// createAsmStreamer - Create a target specific MCStreamer.
MCStreamer *createAsmStreamer(MCContext &Ctx,
formatted_raw_ostream &OS,
- bool isLittleEndian,
bool isVerboseAsm,
+ bool useLoc,
MCInstPrinter *InstPrint,
MCCodeEmitter *CE,
bool ShowInst) const {
// AsmStreamerCtorFn is default to llvm::createAsmStreamer
- return AsmStreamerCtorFn(Ctx, OS, isLittleEndian, isVerboseAsm,
+ return AsmStreamerCtorFn(Ctx, OS, isVerboseAsm, useLoc,
InstPrint, CE, ShowInst);
}
diff --git a/lib/CodeGen/ELFWriter.cpp b/lib/CodeGen/ELFWriter.cpp
index d14728d8a36..2da62449320 100644
--- a/lib/CodeGen/ELFWriter.cpp
+++ b/lib/CodeGen/ELFWriter.cpp
@@ -45,6 +45,7 @@
#include "llvm/MC/MCSectionELF.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/Target/Mangler.h"
+#include "llvm/Target/TargetAsmInfo.h"
#include "llvm/Target/TargetData.h"
#include "llvm/Target/TargetELFWriterInfo.h"
#include "llvm/Target/TargetLowering.h"
@@ -64,7 +65,7 @@ char ELFWriter::ID = 0;
ELFWriter::ELFWriter(raw_ostream &o, TargetMachine &tm)
: MachineFunctionPass(ID), O(o), TM(tm),
- OutContext(*new MCContext(*TM.getMCAsmInfo())),
+ OutContext(*new MCContext(*TM.getMCAsmInfo(), new TargetAsmInfo(tm))),
TLOF(TM.getTargetLowering()->getObjFileLowering()),
is64Bit(TM.getTargetData()->getPointerSizeInBits() == 64),
isLittleEndian(TM.getTargetData()->isLittleEndian()),
diff --git a/lib/CodeGen/LLVMTargetMachine.cpp b/lib/CodeGen/LLVMTargetMachine.cpp
index 5954f62da95..af94365218c 100644
--- a/lib/CodeGen/LLVMTargetMachine.cpp
+++ b/lib/CodeGen/LLVMTargetMachine.cpp
@@ -24,6 +24,7 @@
#include "llvm/Target/TargetOptions.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCStreamer.h"
+#include "llvm/Target/TargetAsmInfo.h"
#include "llvm/Target/TargetData.h"
#include "llvm/Target/TargetRegistry.h"
#include "llvm/Transforms/Scalar.h"
@@ -145,27 +146,12 @@ bool LLVMTargetMachine::addPassesToEmitFile(PassManagerBase &PM,
if (ShowMCEncoding)
MCE = getTarget().createCodeEmitter(*this, *Context);
- const TargetLoweringObjectFile &TLOF =
- getTargetLowering()->getObjFileLowering();
- int PointerSize = getTargetData()->getPointerSize();
-
- MCStreamer *S;
- if (hasMCUseLoc())
- S = getTarget().createAsmStreamer(*Context, Out,
- getTargetData()->isLittleEndian(),
- getVerboseAsm(),
- InstPrinter,
- MCE,
- ShowMCInst);
- else
- S = createAsmStreamerNoLoc(*Context, Out,
- getTargetData()->isLittleEndian(),
- getVerboseAsm(),
- &TLOF,
- PointerSize,
- InstPrinter,
- MCE,
- ShowMCInst);
+ MCStreamer *S = getTarget().createAsmStreamer(*Context, Out,
+ getVerboseAsm(),
+ hasMCUseLoc(),
+ InstPrinter,
+ MCE,
+ ShowMCInst);
AsmStreamer.reset(S);
break;
}
@@ -344,7 +330,8 @@ bool LLVMTargetMachine::addCommonCodeGenPasses(PassManagerBase &PM,
// Install a MachineModuleInfo class, which is an immutable pass that holds
// all the per-module stuff we're generating, including MCContext.
- MachineModuleInfo *MMI = new MachineModuleInfo(*getMCAsmInfo());
+ TargetAsmInfo *TAI = new TargetAsmInfo(*this);
+ MachineModuleInfo *MMI = new MachineModuleInfo(*getMCAsmInfo(), TAI);
PM.add(MMI);
OutContext = &MMI->getContext(); // Return the MCContext specifically by-ref.
diff --git a/lib/CodeGen/MachineModuleInfo.cpp b/lib/CodeGen/MachineModuleInfo.cpp
index 79622e8df3e..fadc594efcb 100644
--- a/lib/CodeGen/MachineModuleInfo.cpp
+++ b/lib/CodeGen/MachineModuleInfo.cpp
@@ -253,8 +253,9 @@ void MMIAddrLabelMapCallbackPtr::allUsesReplacedWith(Value *V2) {
//===----------------------------------------------------------------------===//
-MachineModuleInfo::MachineModuleInfo(const MCAsmInfo &MAI)
-: ImmutablePass(ID), Context(MAI),
+MachineModuleInfo::MachineModuleInfo(const MCAsmInfo &MAI,
+ const TargetAsmInfo *TAI)
+: ImmutablePass(ID), Context(MAI, TAI),
ObjFileMMI(0),
CurCallSite(0), CallsEHReturn(0), CallsUnwindInit(0), DbgInfoAvailable(false),
CallsExternalVAFunctionWithFloatingPointArguments(false) {
@@ -266,7 +267,7 @@ MachineModuleInfo::MachineModuleInfo(const MCAsmInfo &MAI)
}
MachineModuleInfo::MachineModuleInfo()
-: ImmutablePass(ID), Context(*(MCAsmInfo*)0) {
+: ImmutablePass(ID), Context(*(MCAsmInfo*)0, NULL) {
assert(0 && "This MachineModuleInfo constructor should never be called, MMI "
"should always be explicitly constructed by LLVMTargetMachine");
abort();
diff --git a/lib/CodeGen/TargetLoweringObjectFileImpl.cpp b/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
index 944ed26f542..abc01a28776 100644
--- a/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
+++ b/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
@@ -135,7 +135,7 @@ void TargetLoweringObjectFileELF::Initialize(MCContext &Ctx,
SectionKind::getReadOnly());
EHFrameSection =
getContext().getELFSection(".eh_frame", MCSectionELF::SHT_PROGBITS,
- MCSectionELF::SHF_ALLOC |MCSectionELF::SHF_WRITE,
+ MCSectionELF::SHF_ALLOC,
SectionKind::getDataRel());
// Debug Info Sections.
diff --git a/lib/MC/MCAsmStreamer.cpp b/lib/MC/MCAsmStreamer.cpp
index ce85e462b3d..a1c02208a0b 100644
--- a/lib/MC/MCAsmStreamer.cpp
+++ b/lib/MC/MCAsmStreamer.cpp
@@ -24,6 +24,7 @@
#include "llvm/Support/Format.h"
#include "llvm/Support/FormattedStream.h"
#include "llvm/Target/TargetLoweringObjectFile.h"
+#include "llvm/Target/TargetAsmInfo.h"
using namespace llvm;
namespace {
@@ -37,32 +38,26 @@ class MCAsmStreamer : public MCStreamer {
SmallString<128> CommentToEmit;
raw_svector_ostream CommentStream;
- const TargetLoweringObjectFile *TLOF;
- int PointerSize;
-
- unsigned IsLittleEndian : 1;
unsigned IsVerboseAsm : 1;
unsigned ShowInst : 1;
+ unsigned UseLoc : 1;
bool needsSet(const MCExpr *Value);
public:
MCAsmStreamer(MCContext &Context, formatted_raw_ostream &os,
- bool isLittleEndian, bool isVerboseAsm,
- const TargetLoweringObjectFile *tlof, int pointerSize,
+ bool isVerboseAsm,
+ bool useLoc,
MCInstPrinter *printer, MCCodeEmitter *emitter, bool showInst)
: MCStreamer(Context), OS(os), MAI(Context.getAsmInfo()),
InstPrinter(printer), Emitter(emitter), CommentStream(CommentToEmit),
- TLOF(tlof), PointerSize(pointerSize),
- IsLittleEndian(isLittleEndian), IsVerboseAsm(isVerboseAsm),
- ShowInst(showInst) {
+ IsVerboseAsm(isVerboseAsm),
+ ShowInst(showInst), UseLoc(useLoc) {
if (InstPrinter && IsVerboseAsm)
InstPrinter->setCommentStream(CommentStream);
}
~MCAsmStreamer() {}
- bool isLittleEndian() const { return IsLittleEndian; }
-
inline void EmitEOL() {
// If we don't have any comments, just emit a \n.
if (!IsVerboseAsm) {
@@ -152,7 +147,8 @@ public:
virtual void EmitBytes(StringRef Data, unsigned AddrSpace);
- virtual void EmitValue(const MCExpr *Value, unsigned Size,unsigned AddrSpace);
+ virtual void EmitValueImpl(const MCExpr *Value, unsigned Size,
+ bool isPCRel, unsigned AddrSpace);
virtual void EmitIntValue(uint64_t Value, unsigned Size,
unsigned AddrSpace = 0);
@@ -307,7 +303,8 @@ void MCAsmStreamer::EmitWeakReference(MCSymbol *Alias, const MCSymbol *Symbol) {
void MCAsmStreamer::EmitDwarfAdvanceLineAddr(int64_t LineDelta,
const MCSymbol *LastLabel,
const MCSymbol *Label) {
- EmitDwarfSetLineAddr(LineDelta, Label, PointerSize);
+ EmitDwarfSetLineAddr(LineDelta, Label,
+ getContext().getTargetAsmInfo().getPointerSize());
}
void MCAsmStreamer::EmitSymbolAttribute(MCSymbol *Symbol,
@@ -512,9 +509,10 @@ void MCAsmStreamer::EmitIntValue(uint64_t Value, unsigned Size,
EmitValue(MCConstantExpr::Create(Value, getContext()), Size, AddrSpace);
}
-void MCAsmStreamer::EmitValue(const MCExpr *Value, unsigned Size,
- unsigned AddrSpace) {
+void MCAsmStreamer::EmitValueImpl(const MCExpr *Value, unsigned Size,
+ bool isPCRel, unsigned AddrSpace) {
assert(CurSection && "Cannot emit contents before setting section!");
+ assert(!isPCRel && "Cannot emit pc relative relocations!");
const char *Directive = 0;
switch (Size) {
default: break;
@@ -528,7 +526,7 @@ void MCAsmStreamer::EmitValue(const MCExpr *Value, unsigned Size,
int64_t IntValue;
if (!Value->EvaluateAsAbsolute(IntValue))
report_fatal_error("Don't know how to emit this value.");
- if (isLittleEndian()) {
+ if (getContext().getTargetAsmInfo().isLittleEndian()) {
EmitIntValue((uint32_t)(IntValue >> 0 ), 4, AddrSpace);
EmitIntValue((uint32_t)(IntValue >> 32), 4, AddrSpace);
} else {
@@ -662,7 +660,7 @@ void MCAsmStreamer::EmitFileDirective(StringRef Filename) {
}
bool MCAsmStreamer::EmitDwarfFileDirective(unsigned FileNo, StringRef Filename){
- if (!TLOF) {
+ if (UseLoc) {
OS << "\t.file\t" << FileNo << ' ';
PrintQuotedString(Filename, OS);
EmitEOL();
@@ -676,7 +674,7 @@ void MCAsmStreamer::EmitDwarfLocDirective(unsigned FileNo, unsigned Line,
unsigned Discriminator) {
this->MCStreamer::EmitDwarfLocDirective(FileNo, Line, Column, Flags,
Isa, Discriminator);
- if (TLOF)
+ if (!UseLoc)
return;
OS << "\t.loc\t" << FileNo << " " << Line << " " << Column;
@@ -829,7 +827,7 @@ void MCAsmStreamer::AddEncodingComment(const MCInst &Inst) {
unsigned Bit = (Code[i] >> j) & 1;
unsigned FixupBit;
- if (IsLittleEndian)
+ if (getContext().getTargetAsmInfo().isLittleEndian())
FixupBit = i * 8 + j;
else
FixupBit = i * 8 + (7-j);
@@ -855,7 +853,7 @@ void MCAsmStreamer::AddEncodingComment(const MCInst &Inst) {
void MCAsmStreamer::EmitInstruction(const MCInst &Inst) {
assert(CurSection && "Cannot emit contents before setting section!");
- if (TLOF)
+ if (!UseLoc)
MCLineEntry::Make(this, getCurrentSection());
// Show the encoding in a comment if we have a code emitter.
@@ -888,28 +886,15 @@ void MCAsmStreamer::EmitRawText(StringRef String) {
void MCAsmStreamer::Finish() {
// Dump out the dwarf file & directory tables and line tables.
- if (getContext().hasDwarfFiles() && TLOF)
- MCDwarfFileTable::Emit(this, TLOF->getDwarfLineSection());
+ if (getContext().hasDwarfFiles() && !UseLoc)
+ MCDwarfFileTable::Emit(this);
}
MCStreamer *llvm::createAsmStreamer(MCContext &Context,
formatted_raw_ostream &OS,
- bool isLittleEndian,
- bool isVerboseAsm, MCInstPrinter *IP,
+ bool isVerboseAsm, bool useLoc,
+ MCInstPrinter *IP,
MCCodeEmitter *CE, bool ShowInst) {
- return new MCAsmStreamer(Context, OS, isLittleEndian, isVerboseAsm,
- NULL, 0, IP, CE, ShowInst);
-}
-
-
-MCStreamer *llvm::createAsmStreamerNoLoc(MCContext &Context,
- formatted_raw_ostream &OS,
- bool isLittleEndian,
- bool isVerboseAsm,
- const TargetLoweringObjectFile *TLOF,
- int PointerSize,
- MCInstPrinter *IP,
- MCCodeEmitter *CE, bool ShowInst) {
- return new MCAsmStreamer(Context, OS, isLittleEndian, isVerboseAsm,
- TLOF, PointerSize, IP, CE, ShowInst);
+ return new MCAsmStreamer(Context, OS, isVerboseAsm, useLoc,
+ IP, CE, ShowInst);
}
diff --git a/lib/MC/MCContext.cpp b/lib/MC/MCContext.cpp
index a1bc9d8b6f5..839c08d8a26 100644
--- a/lib/MC/MCContext.cpp
+++ b/lib/MC/MCContext.cpp
@@ -15,6 +15,7 @@
#include "llvm/MC/MCSymbol.h"
#include "llvm/MC/MCLabel.h"
#include "llvm/MC/MCDwarf.h"
+#include "llvm/Target/TargetAsmInfo.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/Twine.h"
using namespace llvm;
@@ -24,8 +25,9 @@ typedef StringMap<const MCSectionELF*> ELFUniqueMapTy;
typedef StringMap<const MCSectionCOFF*> COFFUniqueMapTy;
-MCContext::MCContext(const MCAsmInfo &mai) : MAI(mai), NextUniqueID(0),
- CurrentDwarfLoc(0,0,0,DWARF2_FLAG_IS_STMT,0,0) {
+MCContext::MCContext(const MCAsmInfo &mai, const TargetAsmInfo *tai) :
+ MAI(mai), TAI(tai), NextUniqueID(0),
+ CurrentDwarfLoc(0,0,0,DWARF2_FLAG_IS_STMT,0,0) {
MachOUniquingMap = 0;
ELFUniquingMap = 0;
COFFUniquingMap = 0;
@@ -48,6 +50,8 @@ MCContext::~MCContext() {
// If the stream for the .secure_log_unique directive was created free it.
delete (raw_ostream*)SecureLog;
+
+ delete TAI;
}
//===----------------------------------------------------------------------===//
diff --git a/lib/MC/MCDisassembler/EDDisassembler.cpp b/lib/MC/MCDisassembler/EDDisassembler.cpp
index 697b3d9c051..2fd14db2a45 100644
--- a/lib/MC/MCDisassembler/EDDisassembler.cpp
+++ b/lib/MC/MCDisassembler/EDDisassembler.cpp
@@ -354,7 +354,7 @@ int EDDisassembler::parseInst(SmallVectorImpl<MCParsedAsmOperand*> &operands,
SourceMgr sourceMgr;
sourceMgr.AddNewSourceBuffer(buf, SMLoc()); // ownership of buf handed over
- MCContext context(*AsmInfo);
+ MCContext context(*AsmInfo, NULL);
OwningPtr<MCStreamer> streamer(createNullStreamer(context));
OwningPtr<MCAsmParser> genericParser(createMCAsmParser(*Tgt, sourceMgr,
context, *streamer,
diff --git a/lib/MC/MCDwarf.cpp b/lib/MC/MCDwarf.cpp
index d7540ce077d..c1de31bf069 100644
--- a/lib/MC/MCDwarf.cpp
+++ b/lib/MC/MCDwarf.cpp
@@ -19,6 +19,7 @@
#include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Target/TargetAsmBackend.h"
+#include "llvm/Target/TargetAsmInfo.h"
using namespace llvm;
// Given a special op, return the address skip amount (in units of
@@ -125,8 +126,7 @@ static inline const MCExpr *MakeStartMinusEndExpr(const MCStreamer &MCOS,
//
static inline void EmitDwarfLineTable(MCStreamer *MCOS,
const MCSection *Section,
- const MCLineSection *LineSection,
- const MCSection *DwarfLineSection) {
+ const MCLineSection *LineSection) {
unsigned FileNum = 1;
unsigned LastLine = 1;
unsigned Column = 0;
@@ -185,13 +185,15 @@ static inline void EmitDwarfLineTable(MCStreamer *MCOS,
// Switch to the section to be able to create a symbol at its end.
MCOS->SwitchSection(Section);
+
+ MCContext &context = MCOS->getContext();
// Create a symbol at the end of the section.
- MCSymbol *SectionEnd = MCOS->getContext().CreateTempSymbol();
+ MCSymbol *SectionEnd = context.CreateTempSymbol();
// Set the value of the symbol, as we are at the end of the section.
MCOS->EmitLabel(SectionEnd);
// Switch back the the dwarf line section.
- MCOS->SwitchSection(DwarfLineSection);
+ MCOS->SwitchSection(context.getTargetAsmInfo().getDwarfLineSection());
MCOS->EmitDwarfAdvanceLineAddr(INT64_MAX, LastLabel, SectionEnd);
}
@@ -199,18 +201,18 @@ static inline void EmitDwarfLineTable(MCStreamer *MCOS,
//
// This emits the Dwarf file and the line tables.
//
-void MCDwarfFileTable::Emit(MCStreamer *MCOS,
- const MCSection *DwarfLineSection) {
+void MCDwarfFileTable::Emit(MCStreamer *MCOS) {
+ MCContext &context = MCOS->getContext();
// Switch to the section where the table will be emitted into.
- MCOS->SwitchSection(DwarfLineSection);
+ MCOS->SwitchSection(context.getTargetAsmInfo().getDwarfLineSection());
// Create a symbol at the beginning of this section.
- MCSymbol *LineStartSym = MCOS->getContext().CreateTempSymbol();
+ MCSymbol *LineStartSym = context.CreateTempSymbol();
// Set the value of the symbol, as we are at the start of the section.
MCOS->EmitLabel(LineStartSym);
// Create a symbol for the end of the section (to be set when we get there).
- MCSymbol *LineEndSym = MCOS->getContext().CreateTempSymbol();
+ MCSymbol *LineEndSym = context.CreateTempSymbol();
// The first 4 bytes is the total length of the information for this
// compilation unit (not including these 4 bytes for the length).
@@ -221,7 +223,7 @@ void MCDwarfFileTable::Emit(MCStreamer *MCOS,
MCOS->EmitIntValue(2, 2);
// Create a symbol for the end of the prologue (to be set when we get there).
- MCSymbol *ProEndSym = MCOS->getContext().CreateTempSymbol(); // Lprologue_end
+ MCSymbol *ProEndSym = context.CreateTempSymbol(); // Lprologue_end
// Length of the prologue, is the next 4 bytes. Which is the start of the
// section to the end of the prologue. Not including the 4 bytes for the
@@ -256,7 +258,7 @@ void MCDwarfFileTable::Emit(MCStreamer *MCOS,
// First the directory table.
const std::vector<StringRef> &MCDwarfDirs =
- MCOS->getContext().getMCDwarfDirs();
+ context.getMCDwarfDirs();
for (unsigned i = 0; i < MCDwarfDirs.size(); i++) {
MCOS->EmitBytes(MCDwarfDirs[i], 0); // the DirectoryName
MCOS->EmitBytes(StringRef("\0", 1), 0); // the null term. of the string
@@ -290,7 +292,7 @@ void MCDwarfFileTable::Emit(MCStreamer *MCOS,
++it) {
const MCSection *Sec = *it;
const MCLineSection *Line = MCLineSections.lookup(Sec);
- EmitDwarfLineTable(MCOS, Sec, Line, DwarfLineSection);
+ EmitDwarfLineTable(MCOS, Sec, Line);
// Now delete the MCLineSections that were created in MCLineEntry::Make()
// and used to emit the line table.
@@ -425,3 +427,187 @@ void MCDwarfFile::dump() const {
print(dbgs());
}
+static int getDataAlignmentFactor(MCStreamer &streamer) {
+ MCContext &context = streamer.getContext();
+ const TargetAsmInfo &asmInfo = context.getTargetAsmInfo();
+ int size = asmInfo.getPointerSize();
+ if (asmInfo.getStackGrowthDirection() == TargetFrameInfo::StackGrowsUp)
+ return size;
+ else
+ return -size;
+}
+
+/// EmitFrameMoves - Emit frame instructions to describe the layout of the
+/// frame.
+static void EmitFrameMoves(MCStreamer &streamer,
+ const std::vector<MachineMove> &Moves,
+ MCSymbol *BaseLabel, bool isEH) {
+ MCContext &context = streamer.getContext();
+ const TargetAsmInfo &asmInfo = context.getTargetAsmInfo();
+ int dataAlignmentFactor = getDataAlignmentFactor(streamer);
+
+ for (unsigned i = 0, N = Moves.size(); i < N; ++i) {
+ const MachineMove &Move = Moves[i];
+ MCSymbol *Label = Move.getLabel();
+ // Throw out move if the label is invalid.
+ if (Label && !Label->isDefined()) continue; // Not emitted, in dead code.
+
+ const MachineLocation &Dst = Move.getDestination();
+ const MachineLocation &Src = Move.getSource();
+
+ // Advance row if new location.
+ if (BaseLabel && Label) {
+ MCSymbol *ThisSym = Label;
+ if (ThisSym != BaseLabel) {
+ streamer.EmitIntValue(dwarf::DW_CFA_advance_loc4, 1);
+ const MCExpr *Length = MakeStartMinusEndExpr(streamer, *BaseLabel,
+ *ThisSym, 4);
+ streamer.EmitValue(Length, 4);
+ BaseLabel = ThisSym;
+ }
+ }
+
+ // If advancing cfa.
+ if (Dst.isReg() && Dst.getReg() == MachineLocation::VirtualFP) {
+ assert(!Src.isReg() && "Machine move not supported yet.");
+
+ if (Src.getReg() == MachineLocation::VirtualFP) {
+ streamer.EmitIntValue(dwarf::DW_CFA_def_cfa_offset, 1);
+ } else {
+ streamer.EmitIntValue(dwarf::DW_CFA_def_cfa, 1);
+ streamer.EmitULEB128IntValue(asmInfo.getDwarfRegNum(Src.getReg(), isEH),
+ 1);
+ }
+
+ streamer.EmitULEB128IntValue(-Src.getOffset(), 1);
+ continue;
+ }
+
+ if (Src.isReg() && Src.getReg() == MachineLocation::VirtualFP) {
+ assert(Dst.isReg() && "Machine move not supported yet.");
+ streamer.EmitIntValue(dwarf::DW_CFA_def_cfa_register, 1);
+ streamer.EmitULEB128IntValue(asmInfo.getDwarfRegNum(Dst.getReg(), isEH));
+ continue;
+ }
+
+ unsigned Reg = asmInfo.getDwarfRegNum(Src.getReg(), isEH);
+ int Offset = Dst.getOffset() / dataAlignmentFactor;
+
+ if (Offset < 0) {
+ streamer.EmitIntValue(dwarf::DW_CFA_offset_extended_sf, 1);
+ streamer.EmitULEB128IntValue(Reg);
+ streamer.EmitSLEB128IntValue(Offset);
+ } else if (Reg < 64) {
+ streamer.EmitIntValue(dwarf::DW_CFA_offset + Reg, 1);
+ streamer.EmitULEB128IntValue(Offset, 1);
+ } else {
+ streamer.EmitIntValue(dwarf::DW_CFA_offset_extended, 1);
+ streamer.EmitULEB128IntValue(Reg, 1);
+ streamer.EmitULEB128IntValue(Offset, 1);
+ }
+ }
+}
+
+static const MCSymbol &EmitCIE(MCStreamer &streamer) {
+ MCContext &context = streamer.getContext();
+ const TargetAsmInfo &asmInfo = context.getTargetAsmInfo();
+ const MCSection &section = *asmInfo.getEHFrameSection();
+ streamer.SwitchSection(&section);
+ MCSymbol *sectionStart = streamer.getContext().CreateTempSymbol();
+ MCSymbol *sectionEnd = streamer.getContext().CreateTempSymbol();
+
+ // Length
+ const MCExpr *Length = MakeStartMinusEndExpr(streamer, *sectionStart,
+ *sectionEnd, 4);
+ streamer.EmitLabel(sectionStart);
+ streamer.EmitValue(Length, 4);
+
+ // CIE ID
+ streamer.EmitIntValue(0, 4);
+
+ // Version
+ streamer.EmitIntValue(dwarf::DW_CIE_VERSION, 1);
+
+ // Augmentation String
+ SmallString<8> Augmentation;
+ Augmentation += "zR";
+ streamer.EmitBytes(Augmentation.str(), 0);
+ streamer.EmitIntValue(0, 1);
+
+ // Code Alignment Factor
+ streamer.EmitULEB128IntValue(1);
+
+ // Data Alignment Factor
+ streamer.EmitSLEB128IntValue(getDataAlignmentFactor(streamer));
+
+ // Return Address Register
+ streamer.EmitULEB128IntValue(asmInfo.getDwarfRARegNum(true));
+
+ // Augmentation Data Length (optional)
+ MCSymbol *augmentationStart = streamer.getContext().CreateTempSymbol();
+ MCSymbol *augmentationEnd = streamer.getContext().CreateTempSymbol();
+ const MCExpr *augmentationLength = MakeStartMinusEndExpr(streamer,
+ *augmentationStart,
+ *augmentationEnd, 0);
+ streamer.EmitULEB128Value(augmentationLength);
+
+ // Augmentation Data (optional)
+ streamer.EmitLabel(augmentationStart);
+ streamer.EmitIntValue(dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4, 1);
+ streamer.EmitLabel(augmentationEnd);
+
+ // Initial Instructions
+
+ const std::vector<MachineMove> Moves = asmInfo.getInitialFrameState();
+
+ EmitFrameMoves(streamer, Moves, NULL, true);
+
+ // Padding
+ streamer.EmitValueToAlignment(asmInfo.getPointerSize());
+
+ streamer.EmitLabel(sectionEnd);
+ return *sectionStart;
+}
+
+static void EmitFDE(MCStreamer &streamer,
+ const MCSymbol &cieStart,
+ const MCDwarfFrameInfo &frame) {
+ MCContext &context = streamer.getContext();
+ const TargetAsmInfo &asmInfo = context.getTargetAsmInfo();
+ MCSymbol *fdeStart = streamer.getContext().CreateTempSymbol();
+ MCSymbol *fdeEnd = streamer.getContext().CreateTempSymbol();
+
+ // Length
+ const MCExpr *Length = MakeStartMinusEndExpr(streamer, *fdeStart, *fdeEnd, 0);
+ streamer.EmitValue(Length, 4);
+
+ streamer.EmitLabel(fdeStart);
+ // CIE Pointer
+ const MCExpr *offset = MakeStartMinusEndExpr(streamer, cieStart, *fdeStart,
+ 0);
+ streamer.EmitValue(offset, 4);
+
+ // PC Begin
+ streamer.EmitPCRelSymbolValue(frame.Begin, 4);
+
+ // PC Range
+ const MCExpr *Range = MakeStartMinusEndExpr(streamer, *frame.Begin,
+ *frame.End, 0);
+ streamer.EmitValue(Range, 4);
+
+ // Augmentation Data Length
+ streamer.EmitULEB128IntValue(0);
+
+ // Augmentation Data
+ // Call Frame Instructions
+
+ // Padding
+ streamer.EmitValueToAlignment(asmInfo.getPointerSize());
+ streamer.EmitLabel(fdeEnd);
+}
+
+void MCDwarfFrameEmitter::Emit(MCStreamer &streamer) {
+ const MCSymbol &cieStart = EmitCIE(streamer);
+ for (unsigned i = 0, n = streamer.getNumFrameInfos(); i < n; ++i)
+ EmitFDE(streamer, cieStart, streamer.getFrameInfo(i));
+}
diff --git a/lib/MC/MCELFStreamer.cpp b/lib/MC/MCELFStreamer.cpp
index 18d8fa39edd..6900b247ce8 100644
--- a/lib/MC/MCELFStreamer.cpp
+++ b/lib/MC/MCELFStreamer.cpp
@@ -30,6 +30,7 @@
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Target/TargetAsmBackend.h"
+#include "llvm/Target/TargetAsmInfo.h"
using namespace llvm;
@@ -478,14 +479,8 @@ void MCELFStreamer::EmitInstToData(const MCInst &Inst) {
}
void MCELFStreamer::Finish() {
- // FIXME: duplicated code with the MachO streamer.
- // Dump out the dwarf file & directory tables and line tables.
- if (getContext().hasDwarfFiles()) {
- const MCSection *DwarfLineSection =
- getContext().getELFSection(".debug_line", 0, 0,
- SectionKind::getDataRelLocal());
- MCDwarfFileTable::Emit(this, DwarfLineSection);
- }
+ if (!FrameInfos.empty())
+ MCDwarfFrameEmitter::Emit(*this);
for (std::vector<LocalCommon>::const_iterator i = LocalCommons.begin(),
e = LocalCommons.end();
diff --git a/lib/MC/MCLoggingStreamer.cpp b/lib/MC/MCLoggingStreamer.cpp
index 134554b8006..d9474813837 100644
--- a/lib/MC/MCLoggingStreamer.cpp
+++ b/lib/MC/MCLoggingStreamer.cpp
@@ -154,9 +154,10 @@ public:
return Child->EmitBytes(Data, AddrSpace);
}
- virtual void EmitValue(const MCExpr *Value, unsigned Size,unsigned AddrSpace){
+ virtual void EmitValueImpl(const MCExpr *Value, unsigned Size,
+ bool isPCRel, unsigned AddrSpace){
LogCall("EmitValue");
- return Child->EmitValue(Value, Size, AddrSpace);
+ return Child->EmitValueImpl(Value, Size, isPCRel, AddrSpace);
}
virtual void EmitULEB128Value(const MCExpr *Value,
diff --git a/lib/MC/MCMachOStreamer.cpp b/lib/MC/MCMachOStreamer.cpp
index 47060234b38..df1e7d8e2b5 100644
--- a/lib/MC/MCMachOStreamer.cpp
+++ b/lib/MC/MCMachOStreamer.cpp
@@ -24,6 +24,7 @@
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Target/TargetAsmBackend.h"
+#include "llvm/Target/TargetAsmInfo.h"
using namespace llvm;
@@ -354,15 +355,6 @@ void MCMachOStreamer::EmitInstToData(const MCInst &Inst) {
}
void MCMachOStreamer::Finish() {
- // Dump out the dwarf file & directory tables and line tables.
- if (getContext().hasDwarfFiles()) {
- const MCSection *DwarfLineSection = getContext().getMachOSection("__DWARF",
- "__debug_line",
- MCSectionMachO::S_ATTR_DEBUG,
- 0, SectionKind::getDataRelLocal());
- MCDwarfFileTable::Emit(this, DwarfLineSection);
- }
-
// We have to set the fragment atom associations so we can relax properly for
// Mach-O.
diff --git a/lib/MC/MCNullStreamer.cpp b/lib/MC/MCNullStreamer.cpp
index c8f9c636174..b9393ffd2e9 100644
--- a/lib/MC/MCNullStreamer.cpp
+++ b/lib/MC/MCNullStreamer.cpp
@@ -68,8 +68,8 @@ namespace {
uint64_t Size, unsigned ByteAlignment) {}
virtual void EmitBytes(StringRef Data, unsigned AddrSpace) {}
- virtual void EmitValue(const MCExpr *Value, unsigned Size,
- unsigned AddrSpace) {}
+ virtual void EmitValueImpl(const MCExpr *Value, unsigned Size,
+ bool isPCRel, unsigned AddrSpace) {}
virtual void EmitULEB128Value(const MCExpr *Value,
unsigned AddrSpace = 0) {}
virtual void EmitSLEB128Value(const MCExpr *Value,
diff --git a/lib/MC/MCObjectStreamer.cpp b/lib/MC/MCObjectStreamer.cpp
index 683f2c6adc6..7d3006a712c 100644
--- a/lib/MC/MCObjectStreamer.cpp
+++ b/lib/MC/MCObjectStreamer.cpp
@@ -12,10 +12,12 @@
#include "llvm/Support/ErrorHandling.h"
#include "llvm/MC/MCAssembler.h"
#include "llvm/MC/MCCodeEmitter.h"
+#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCDwarf.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCSymbol.h"
#include "llvm/Target/TargetAsmBackend.h"
+#include "llvm/Target/TargetAsmInfo.h"
using namespace llvm;
MCObjectStreamer::MCObjectStreamer(MCContext &Context, TargetAsmBackend &TAB,
@@ -74,8 +76,8 @@ const MCExpr *MCObjectStreamer::AddValueSymbols(const MCExpr *Value) {
return Value;
}
-void MCObjectStreamer::EmitValue(const MCExpr *Value, unsigned Size,
- unsigned AddrSpace) {
+void MCObjectStreamer::EmitValueImpl(const MCExpr *Value, unsigned Size,
+ bool isPCRel, unsigned AddrSpace) {
assert(AddrSpace == 0 && "Address space must be 0!");
MCDataFragment *DF = getOrCreateDataFragment();
@@ -87,7 +89,7 @@ void MCObjectStreamer::EmitValue(const MCExpr *Value, unsigned Size,
}
DF->addFixup(MCFixup::Create(DF->getContents().size(),
AddValueSymbols(Value),
- MCFixup::getKindForSize(Size, false)));
+ MCFixup::getKindForSize(Size, isPCRel)));
DF->getContents().resize(DF->getContents().size() + Size, 0);
}
@@ -189,7 +191,7 @@ void MCObjectStreamer::EmitDwarfAdvanceLineAddr(int64_t LineDelta,
const MCSymbol *LastLabel,
const MCSymbol *Label) {
if (!LastLabel) {
- int PointerSize = getAssembler().getBackend().getPointerSize();
+ int PointerSize = getContext().getTargetAsmInfo().getPointerSize();
EmitDwarfSetLineAddr(LineDelta, Label, PointerSize);
return;
}
@@ -215,5 +217,9 @@ void MCObjectStreamer::EmitValueToOffset(const MCExpr *Offset,
}
void MCObjectStreamer::Finish() {
+ // Dump out the dwarf file & directory tables and line tables.
+ if (getContext().hasDwarfFiles())
+ MCDwarfFileTable::Emit(this);
+
getAssembler().Finish();
}
diff --git a/lib/MC/MCStreamer.cpp b/lib/MC/MCStreamer.cpp
index e003a953ade..6f9692d2274 100644
--- a/lib/MC/MCStreamer.cpp
+++ b/lib/MC/MCStreamer.cpp
@@ -85,9 +85,31 @@ void MCStreamer::EmitAbsValue(const MCExpr *Value, unsigned Size,
EmitSymbolValue(ABS, Size, AddrSpace);
}
+
+void MCStreamer::EmitValue(const MCExpr *Value, unsigned Size,
+ unsigned AddrSpace) {
+ EmitValueImpl(Value, Size, false, AddrSpace);
+}
+
+void MCStreamer::EmitPCRelValue(const MCExpr *Value, unsigned Size,
+ unsigned AddrSpace) {
+ EmitValueImpl(Value, Size, true, AddrSpace);
+}
+
+void MCStreamer::EmitSymbolValue(const MCSymbol *Sym, unsigned Size,
+ bool isPCRel, unsigned AddrSpace) {
+ EmitValueImpl(MCSymbolRefExpr::Create(Sym, getContext()), Size, isPCRel,
+ AddrSpace);
+}
+
void MCStreamer::EmitSymbolValue(const MCSymbol *Sym, unsigned Size,
unsigned AddrSpace) {
- EmitValue(MCSymbolRefExpr::Create(Sym, getContext()), Size, AddrSpace);
+ EmitSymbolValue(Sym, Size, false, AddrSpace);
+}
+
+void MCStreamer::EmitPCRelSymbolValue(const MCSymbol *Sym, unsigned Size,
+ unsigned AddrSpace) {
+ EmitSymbolValue(Sym, Size, true, AddrSpace);
}
void MCStreamer::EmitGPRel32Value(const MCExpr *Value) {
@@ -116,31 +138,65 @@ void MCStreamer::EmitDwarfLocDirective(unsigned FileNo, unsigned Line,
Discriminator);
}
+MCDwarfFrameInfo *MCStreamer::getCurrentFrameInfo() {
+ if (FrameInfos.empty())
+ return NULL;
+ return &FrameInfos.back();
+}
+
+void MCStreamer::EnsureValidFrame() {
+ MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
+ if (!CurFrame || CurFrame->End)
+ report_fatal_error("No open frame");
+}
+
bool MCStreamer::EmitCFIStartProc() {
+ MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
+ if (CurFrame && !CurFrame->End) {
+ report_fatal_error("Starting a frame before finishing the previous one!");
+ return true;
+ }
+ MCDwarfFrameInfo Frame = {0, 0, 0, 0};
+ Frame.Begin = getContext().CreateTempSymbol();
+ EmitLabel(Frame.Begin);
+ FrameInfos.push_back(Frame);
return false;
}
bool MCStreamer::EmitCFIEndProc() {
+ EnsureValidFrame();
+ MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
+ CurFrame->End = getContext().CreateTempSymbol();
+ EmitLabel(CurFrame->End);
return false;
}
bool MCStreamer::EmitCFIDefCfaOffset(int64_t Offset) {
+ EnsureValidFrame();
return false;
}
bool MCStreamer::EmitCFIDefCfaRegister(int64_t Register) {
+ EnsureValidFrame();
return false;
}
bool MCStreamer::EmitCFIOffset(int64_t Register, int64_t Offset) {
+ EnsureValidFrame();
return false;
}
bool MCStreamer::EmitCFIPersonality(const MCSymbol *Sym) {
+ EnsureValidFrame();
+ MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
+ CurFrame->Personality = Sym;
return false;
}
bool MCStreamer::EmitCFILsda(const MCSymbol *Sym) {
+ EnsureValidFrame();
+ MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
+ CurFrame->Lsda = Sym;
return false;
}
diff --git a/lib/Target/CBackend/CBackend.cpp b/lib/Target/CBackend/CBackend.cpp
index c89fe06d99b..6c555a3e9d1 100644
--- a/lib/Target/CBackend/CBackend.cpp
+++ b/lib/Target/CBackend/CBackend.cpp
@@ -1755,7 +1755,7 @@ bool CWriter::doInitialization(Module &M) {
TAsm = Match->createAsmInfo(Triple);
#endif
TAsm = new CBEMCAsmInfo();
- TCtx = new MCContext(*TAsm);
+ TCtx = new MCContext(*TAsm, NULL);
Mang = new Mangler(*TCtx, *TD);
// Keep track of which functions are static ctors/dtors so they can have
diff --git a/lib/Target/CMakeLists.txt b/lib/Target/CMakeLists.txt
index 43ebdac528c..4e62d96e464 100644
--- a/lib/Target/CMakeLists.txt
+++ b/lib/Target/CMakeLists.txt
@@ -2,6 +2,7 @@ add_llvm_library(LLVMTarget
Mangler.cpp
SubtargetFeature.cpp
Target.cpp
+ TargetAsmInfo.cpp
TargetAsmLexer.cpp
TargetData.cpp
TargetELFWriterInfo.cpp
diff --git a/lib/Target/PTX/PTXMCAsmStreamer.cpp b/lib/Target/PTX/PTXMCAsmStreamer.cpp
index 4e517ad76a2..ec9dc960be7 100644
--- a/lib/Target/PTX/PTXMCAsmStreamer.cpp
+++ b/lib/Target/PTX/PTXMCAsmStreamer.cpp
@@ -23,6 +23,7 @@
#include "llvm/Support/Format.h"
#include "llvm/Support/FormattedStream.h"
#include "llvm/Support/raw_ostream.h"
+#include "llvm/Target/TargetAsmInfo.h"
using namespace llvm;
@@ -36,21 +37,19 @@ class PTXMCAsmStreamer : public MCStreamer {
SmallString<128> CommentToEmit;
raw_svector_ostream CommentStream;
- unsigned IsLittleEndian : 1;
unsigned IsVerboseAsm : 1;
unsigned ShowInst : 1;
public:
PTXMCAsmStreamer(MCContext &Context,
formatted_raw_ostream &os,
- bool isLittleEndian,
- bool isVerboseAsm,
+ bool isVerboseAsm, bool useLoc,
MCInstPrinter *printer,
MCCodeEmitter *emitter,
bool showInst)
: MCStreamer(Context), OS(os), MAI(Context.getAsmInfo()),
InstPrinter(printer), Emitter(emitter), CommentStream(CommentToEmit),
- IsLittleEndian(isLittleEndian), IsVerboseAsm(isVerboseAsm),
+ IsVerboseAsm(isVerboseAsm),
ShowInst(showInst) {
if (InstPrinter && IsVerboseAsm)
InstPrinter->setCommentStream(CommentStream);
@@ -58,8 +57,6 @@ public:
~PTXMCAsmStreamer() {}
- bool isLittleEndian() const { return IsLittleEndian; }
-
inline void EmitEOL() {
// If we don't have any comments, just emit a \n.
if (!IsVerboseAsm) {
@@ -147,7 +144,8 @@ public:
virtual void EmitBytes(StringRef Data, unsigned AddrSpace);
- virtual void EmitValue(const MCExpr *Value, unsigned Size,unsigned AddrSpace);
+ virtual void EmitValueImpl(const MCExpr *Value, unsigned Size,
+ bool isPCRel, unsigned AddrSpace);
virtual void EmitULEB128Value(const MCExpr *Value, unsigned AddrSpace = 0);
virtual void EmitSLEB128Value(const MCExpr *Value, unsigned AddrSpace = 0);
virtual void EmitGPRel32Value(const MCExpr *Value);
@@ -359,9 +357,10 @@ void PTXMCAsmStreamer::EmitBytes(StringRef Data, unsigned AddrSpace) {
EmitEOL();
}
-void PTXMCAsmStreamer::EmitValue(const MCExpr *Value, unsigned Size,
- unsigned AddrSpace) {
+void PTXMCAsmStreamer::EmitValueImpl(const MCExpr *Value, unsigned Size,
+ bool isPCRel, unsigned AddrSpace) {
assert(CurSection && "Cannot emit contents before setting section!");
+ assert(!isPCRel && "Cannot emit pc relative relocations!");
const char *Directive = 0;
switch (Size) {
default: break;
@@ -375,7 +374,7 @@ void PTXMCAsmStreamer::EmitValue(const MCExpr *Value, unsigned Size,
int64_t IntValue;
if (!Value->EvaluateAsAbsolute(IntValue))
report_fatal_error("Don't know how to emit this value.");
- if (isLittleEndian()) {
+ if (getContext().getTargetAsmInfo().isLittleEndian()) {
EmitIntValue((uint32_t)(IntValue >> 0 ), 4, AddrSpace);
EmitIntValue((uint32_t)(IntValue >> 32), 4, AddrSpace);
} else {
@@ -539,10 +538,10 @@ void PTXMCAsmStreamer::Finish() {}
namespace llvm {
MCStreamer *createPTXAsmStreamer(MCContext &Context,
formatted_raw_ostream &OS,
- bool isLittleEndian,
- bool isVerboseAsm, MCInstPrinter *IP,
+ bool isVerboseAsm, bool useLoc,
+ MCInstPrinter *IP,
MCCodeEmitter *CE, bool ShowInst) {
- return new PTXMCAsmStreamer(Context, OS, isLittleEndian, isVerboseAsm,
+ return new PTXMCAsmStreamer(Context, OS, isVerboseAsm, useLoc,
IP, CE, ShowInst);
}
}
diff --git a/lib/Target/PTX/PTXTargetMachine.cpp b/lib/Target/PTX/PTXTargetMachine.cpp
index f62a5299a11..0e9f5181ed5 100644
--- a/lib/Target/PTX/PTXTargetMachine.cpp
+++ b/lib/Target/PTX/PTXTargetMachine.cpp
@@ -21,7 +21,7 @@ using namespace llvm;
namespace llvm {
MCStreamer *createPTXAsmStreamer(MCContext &Ctx, formatted_raw_ostream &OS,
- bool isLittleEndian, bool isVerboseAsm,
+ bool isVerboseAsm, bool useLoc,
MCInstPrinter *InstPrint,
MCCodeEmitter *CE,
bool ShowInst);
diff --git a/lib/Target/TargetAsmInfo.cpp b/lib/Target/TargetAsmInfo.cpp
new file mode 100644
index 00000000000..30b73c46a79
--- /dev/null
+++ b/lib/Target/TargetAsmInfo.cpp
@@ -0,0 +1,27 @@
+//===-- llvm/Target/TargetAsmInfo.cpp - Target Assembly Info --------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Target/TargetAsmInfo.h"
+#include "llvm/Target/TargetData.h"
+#include "llvm/Target/TargetLowering.h"
+#include "llvm/Target/TargetLoweringObjectFile.h"
+#include "llvm/Target/TargetMachine.h"
+#include "llvm/Target/TargetRegisterInfo.h"
+using namespace llvm;
+
+TargetAsmInfo::TargetAsmInfo(const TargetMachine &TM) {
+ TLOF = &TM.getTargetLowering()->getObjFileLowering();
+ const TargetData &TD = *TM.getTargetData();
+ IsLittleEndian = TD.isLittleEndian();
+ PointerSize = TD.getPointerSize();
+ const TargetFrameInfo &TFI = *TM.getFrameInfo();
+ StackDir = TFI.getStackGrowthDirection();
+ TRI = TM.getRegisterInfo();
+ TFI.getInitialFrameState(InitialFrameState);
+}
diff --git a/lib/Target/X86/X86AsmBackend.cpp b/lib/Target/X86/X86AsmBackend.cpp
index 5626fd7afd3..f251585f3b1 100644
--- a/lib/Target/X86/X86AsmBackend.cpp
+++ b/lib/Target/X86/X86AsmBackend.cpp
@@ -279,10 +279,6 @@ public:
ELFX86_32AsmBackend(const Target &T, Triple::OSType OSType)
: ELFX86AsmBackend(T, OSType) {}
- unsigned getPointerSize() const {
- return 4;
- }
-
MCObjectWriter *createObjectWriter(raw_ostream &OS) const {
return createELFObjectWriter(OS, /*Is64Bit=*/false,
OSType, ELF::EM_386,
@@ -296,10 +292,6 @@ public:
ELFX86_64AsmBackend(const Target &T, Triple::OSType OSType)
: ELFX86AsmBackend(T, OSType) {}
- unsigned getPointerSize() const {
- return 8;
- }
-
MCObjectWriter *createObjectWriter(raw_ostream &OS) const {
return createELFObjectWriter(OS, /*Is64Bit=*/true,
OSType, ELF::EM_X86_64,
@@ -323,13 +315,6 @@ public:
return Format;
}
- unsigned getPointerSize() const {
- if (Is64Bit)
- return 8;
- else
- return 4;
- }
-
MCObjectWriter *createObjectWriter(raw_ostream &OS) const {
return createWinCOFFObjectWriter(OS, Is64Bit);
}
@@ -354,10 +339,6 @@ public:
DarwinX86_32AsmBackend(const Target &T)
: DarwinX86AsmBackend(T) {}
- unsigned getPointerSize() const {
- return 4;
- }
-
MCObjectWriter *createObjectWriter(raw_ostream &OS) const {
return createMachObjectWriter(OS, /*Is64Bit=*/false,
object::mach::CTM_i386,
@@ -373,10 +354,6 @@ public:
HasReliableSymbolDifference = true;
}
- unsigned getPointerSize() const {
- return 8;
- }
-
MCObjectWriter *createObjectWriter(raw_ostream &OS) const {
return createMachObjectWriter(OS, /*Is64Bit=*/true,
object::mach::CTM_x86_64,
diff --git a/test/MC/ELF/cfi.s b/test/MC/ELF/cfi.s
new file mode 100644
index 00000000000..df62d7de06c
--- /dev/null
+++ b/test/MC/ELF/cfi.s
@@ -0,0 +1,41 @@
+// RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o - | elf-dump --dump-section-data | FileCheck %s
+
+f:
+ .cfi_startproc
+ nop
+ .cfi_endproc
+
+// CHECK: # Section 0x00000004
+// CHECK-NEXT: (('sh_name', 0x00000012) # '.eh_frame'
+// CHECK-NEXT: ('sh_type', 0x00000001)
+// CHECK-NEXT: ('sh_flags', 0x00000002)
+// CHECK-NEXT: ('sh_addr', 0x00000000)
+// CHECK-NEXT: ('sh_offset', 0x00000048)
+// CHECK-NEXT: ('sh_size', 0x00000030)
+// CHECK-NEXT: ('sh_link', 0x00000000)
+// CHECK-NEXT: ('sh_info', 0x00000000)
+// CHECK-NEXT: ('sh_addralign', 0x00000008)
+// CHECK-NEXT: ('sh_entsize', 0x00000000)
+// CHECK-NEXT: ('_section_data', '14000000 00000000 017a5200 01781001 1b0c0708 90010000 14000000 1c000000 00000000 01000000 00000000 00000000')
+// CHECK-NEXT: ),
+
+// CHECK: # Section 0x00000008
+// CHECK-NEXT: (('sh_name', 0x00000036) # '.rela.eh_frame'
+// CHECK-NEXT: ('sh_type', 0x00000004)
+// CHECK-NEXT: ('sh_flags', 0x00000000)
+// CHECK-NEXT: ('sh_addr', 0x00000000)
+// CHECK-NEXT: ('sh_offset', 0x00000158)
+// CHECK-NEXT: ('sh_size', 0x00000018)
+// CHECK-NEXT: ('sh_link', 0x00000006)
+// CHECK-NEXT: ('sh_info', 0x00000004)
+// CHECK-NEXT: ('sh_addralign', 0x00000008)
+// CHECK-NEXT: ('sh_entsize', 0x00000018)
+// CHECK-NEXT: ('_relocations', [
+// CHECK-NEXT: # Relocation 0x00000000
+// CHECK-NEXT: (('r_offset', 0x00000020)
+// CHECK-NEXT: ('r_sym', 0x00000002)
+// CHECK-NEXT: ('r_type', 0x00000002)
+// CHECK-NEXT: ('r_addend', 0x00000000)
+// CHECK-NEXT: ),
+// CHECK-NEXT: ])
+// CHECK-NEXT: ),
diff --git a/test/MC/ELF/empty-dwarf-lines.s b/test/MC/ELF/empty-dwarf-lines.s
index 81d98711e9d..0f791ae2aa3 100644
--- a/test/MC/ELF/empty-dwarf-lines.s
+++ b/test/MC/ELF/empty-dwarf-lines.s
@@ -9,7 +9,7 @@ c:
// CHECK: # Section 0x00000004
// CHECK-NEXT: (('sh_name', 0x00000012) # '.debug_line'
-// CHECK-NEXT: ('sh_type', 0x00000000)
+// CHECK-NEXT: ('sh_type', 0x00000001)
// CHECK-NEXT: ('sh_flags', 0x00000000)
// CHECK-NEXT: ('sh_addr', 0x00000000)
// CHECK-NEXT: ('sh_offset', 0x00000044)
diff --git a/tools/llvm-mc/llvm-mc.cpp b/tools/llvm-mc/llvm-mc.cpp
index 46eb3727d66..c59c80a0501 100644
--- a/tools/llvm-mc/llvm-mc.cpp
+++ b/tools/llvm-mc/llvm-mc.cpp
@@ -24,6 +24,9 @@
#include "llvm/Target/TargetData.h"
#include "llvm/Target/TargetRegistry.h"
#include "llvm/Target/SubtargetFeature.h" // FIXME.
+#include "llvm/Target/TargetAsmInfo.h" // FIXME.
+#include "llvm/Target/TargetLowering.h" // FIXME.
+#include "llvm/Target/TargetLoweringObjectFile.h" // FIXME.
#include "llvm/Target/TargetMachine.h" // FIXME.
#include "llvm/Target/TargetSelect.h"
#include "llvm/ADT/OwningPtr.h"
@@ -298,8 +301,6 @@ static int AssembleInput(const char *ProgName) {
llvm::OwningPtr<MCAsmInfo> MAI(TheTarget->createAsmInfo(TripleName));
assert(MAI && "Unable to create target asm info!");
- MCContext Ctx(*MAI);
-
// Package up features to be passed to target/subtarget
std::string FeaturesStr;
if (MCPU.size()) {
@@ -321,6 +322,9 @@ static int AssembleInput(const char *ProgName) {
return 1;
}
+ const TargetAsmInfo *tai = new TargetAsmInfo(*TM);
+ MCContext Ctx(*MAI, tai);
+
OwningPtr<tool_output_file> Out(GetOutputStream());
if (!Out)
return 1;
@@ -328,15 +332,18 @@ static int AssembleInput(const char *ProgName) {
formatted_raw_ostream FOS(Out->os());
OwningPtr<MCStreamer> Str;
+ const TargetLoweringObjectFile &TLOF =
+ TM->getTargetLowering()->getObjFileLowering();
+ const_cast<TargetLoweringObjectFile&>(TLOF).Initialize(Ctx, *TM);
+
if (FileType == OFT_AssemblyFile) {
MCInstPrinter *IP =
TheTarget->createMCInstPrinter(OutputAsmVariant, *MAI);
MCCodeEmitter *CE = 0;
if (ShowEncoding)
CE = TheTarget->createCodeEmitter(*TM, Ctx);
- Str.reset(TheTarget->createAsmStreamer(Ctx, FOS,
- TM->getTargetData()->isLittleEndian(),
- /*asmverbose*/true, IP, CE, ShowInst));
+ Str.reset(TheTarget->createAsmStreamer(Ctx, FOS, /*asmverbose*/true,
+ /*useLoc*/ true, IP, CE, ShowInst));
} else if (FileType == OFT_Null) {
Str.reset(createNullStreamer(Ctx));
} else {
diff --git a/tools/lto/LTOCodeGenerator.cpp b/tools/lto/LTOCodeGenerator.cpp
index f1c5680adda..d49e6a77b30 100644
--- a/tools/lto/LTOCodeGenerator.cpp
+++ b/tools/lto/LTOCodeGenerator.cpp
@@ -347,7 +347,7 @@ void LTOCodeGenerator::applyScopeRestrictions() {
// mark which symbols can not be internalized
if (!_mustPreserveSymbols.empty()) {
- MCContext Context(*_target->getMCAsmInfo());
+ MCContext Context(*_target->getMCAsmInfo(), NULL);
Mangler mangler(Context, *_target->getTargetData());
std::vector<const char*> mustPreserveList;
for (Module::iterator f = mergedModule->begin(),
diff --git a/tools/lto/LTOModule.cpp b/tools/lto/LTOModule.cpp
index 2453e2b2c2d..a33b8b473e2 100644
--- a/tools/lto/LTOModule.cpp
+++ b/tools/lto/LTOModule.cpp
@@ -428,7 +428,7 @@ void LTOModule::lazyParseSymbols() {
_symbolsParsed = true;
// Use mangler to add GlobalPrefix to names to match linker names.
- MCContext Context(*_target->getMCAsmInfo());
+ MCContext Context(*_target->getMCAsmInfo(), NULL);
Mangler mangler(Context, *_target->getTargetData());
// add functions