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Code Issues Projects Releases Wiki Activity

1) make DIE take AsmPrinter instead of DwarfPrinter.

Browse Source 
2) change DwarfDebug to not inherit from DwarfPrinter.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100372 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2010-04-05 00:13:49 +00:00
parent 02b86b93dc
commit d38fee8ddc
7 changed files with 151 additions and 130 deletions
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17
include/llvm/CodeGen/AsmPrinter.h
View File

@ -51,6 +51,7 @@ namespace llvm {
class Mangler;
class MCAsmInfo;
class TargetLoweringObjectFile;
class TargetData;
class Twine;
class Type;
@ -95,12 +96,6 @@ namespace llvm {
///
MCSymbol *CurrentFnSym;
/// getObjFileLowering - Return information about object file lowering.
TargetLoweringObjectFile &getObjFileLowering() const;
/// getCurrentSection() - Return the current section we are emitting to.
const MCSection *getCurrentSection() const;
private:
// GCMetadataPrinters - The garbage collection metadata printer table.
void *GCMetadataPrinters; // Really a DenseMap.
@ -129,6 +124,16 @@ namespace llvm {
///
unsigned getFunctionNumber() const;
/// getObjFileLowering - Return information about object file lowering.
TargetLoweringObjectFile &getObjFileLowering() const;
/// getTargetData - Return information about data layout.
const TargetData &getTargetData() const;
/// getCurrentSection() - Return the current section we are emitting to.
const MCSection *getCurrentSection() const;
//===------------------------------------------------------------------===//
// MachineFunctionPass Implementation.
//===------------------------------------------------------------------===//

7
lib/CodeGen/AsmPrinter/AsmPrinter.cpp
View File

@ -90,12 +90,19 @@ TargetLoweringObjectFile &AsmPrinter::getObjFileLowering() const {
return TM.getTargetLowering()->getObjFileLowering();
}
/// getTargetData - Return information about data layout.
const TargetData &AsmPrinter::getTargetData() const {
return *TM.getTargetData();
}
/// getCurrentSection() - Return the current section we are emitting to.
const MCSection *AsmPrinter::getCurrentSection() const {
return OutStreamer.getCurrentSection();
}
void AsmPrinter::getAnalysisUsage(AnalysisUsage &AU) const {
AU.setPreservesAll();
MachineFunctionPass::getAnalysisUsage(AU);

47
lib/CodeGen/AsmPrinter/DIE.cpp
View File

@ -12,7 +12,6 @@
//===----------------------------------------------------------------------===//
#include "DIE.h"
#include "DwarfPrinter.h"
#include "llvm/ADT/Twine.h"
#include "llvm/CodeGen/AsmPrinter.h"
#include "llvm/MC/MCAsmInfo.h"
@ -54,14 +53,14 @@ void DIEAbbrev::Profile(FoldingSetNodeID &ID) const {
/// Emit - Print the abbreviation using the specified asm printer.
///
void DIEAbbrev::Emit(const DwarfPrinter *DP) const {
void DIEAbbrev::Emit(AsmPrinter *AP) const {
// Emit its Dwarf tag type.
// FIXME: Doing work even in non-asm-verbose runs.
DP->getAsm()->EmitULEB128(Tag, dwarf::TagString(Tag));
AP->EmitULEB128(Tag, dwarf::TagString(Tag));
// Emit whether it has children DIEs.
// FIXME: Doing work even in non-asm-verbose runs.
DP->getAsm()->EmitULEB128(ChildrenFlag, dwarf::ChildrenString(ChildrenFlag));
AP->EmitULEB128(ChildrenFlag, dwarf::ChildrenString(ChildrenFlag));
// For each attribute description.
for (unsigned i = 0, N = Data.size(); i < N; ++i) {
@ -69,18 +68,18 @@ void DIEAbbrev::Emit(const DwarfPrinter *DP) const {
// Emit attribute type.
// FIXME: Doing work even in non-asm-verbose runs.
DP->getAsm()->EmitULEB128(AttrData.getAttribute(),
AP->EmitULEB128(AttrData.getAttribute(),
dwarf::AttributeString(AttrData.getAttribute()));
// Emit form type.
// FIXME: Doing work even in non-asm-verbose runs.
DP->getAsm()->EmitULEB128(AttrData.getForm(),
dwarf::FormEncodingString(AttrData.getForm()));
AP->EmitULEB128(AttrData.getForm(),
dwarf::FormEncodingString(AttrData.getForm()));
}
// Mark end of abbreviation.
DP->getAsm()->EmitULEB128(0, "EOM(1)");
DP->getAsm()->EmitULEB128(0, "EOM(2)");
AP->EmitULEB128(0, "EOM(1)");
AP->EmitULEB128(0, "EOM(2)");
}
#ifndef NDEBUG
@ -188,8 +187,7 @@ void DIEValue::dump() {
/// EmitValue - Emit integer of appropriate size.
///
void DIEInteger::EmitValue(DwarfPrinter *D, unsigned Form) const {
const AsmPrinter *Asm = D->getAsm();
void DIEInteger::EmitValue(AsmPrinter *Asm, unsigned Form) const {
unsigned Size = ~0U;
switch (Form) {
case dwarf::DW_FORM_flag: // Fall thru
@ -241,10 +239,10 @@ void DIEInteger::print(raw_ostream &O) {
/// EmitValue - Emit string value.
///
void DIEString::EmitValue(DwarfPrinter *D, unsigned Form) const {
D->getAsm()->OutStreamer.EmitBytes(Str, /*addrspace*/0);
void DIEString::EmitValue(AsmPrinter *AP, unsigned Form) const {
AP->OutStreamer.EmitBytes(Str, /*addrspace*/0);
// Emit nul terminator.
D->getAsm()->OutStreamer.EmitIntValue(0, 1, /*addrspace*/0);
AP->OutStreamer.EmitIntValue(0, 1, /*addrspace*/0);
}
#ifndef NDEBUG
@ -259,10 +257,10 @@ void DIEString::print(raw_ostream &O) {
/// EmitValue - Emit label value.
///
void DIELabel::EmitValue(DwarfPrinter *D, unsigned Form) const {
void DIELabel::EmitValue(AsmPrinter *AP, unsigned Form) const {
bool IsSmall = Form == dwarf::DW_FORM_data4;
unsigned Size = IsSmall ? 4 : D->getTargetData()->getPointerSize();
D->getAsm()->OutStreamer.EmitSymbolValue(Label, Size, 0/*AddrSpace*/);
unsigned Size = IsSmall ? 4 : AP->getTargetData().getPointerSize();
AP->OutStreamer.EmitSymbolValue(Label, Size, 0/*AddrSpace*/);
}
/// SizeOf - Determine size of label value in bytes.
@ -284,9 +282,9 @@ void DIELabel::print(raw_ostream &O) {
/// EmitValue - Emit delta value.
///
void DIEDelta::EmitValue(DwarfPrinter *D, unsigned Form) const {
D->getAsm()->EmitLabelDifference(LabelHi, LabelLo,
SizeOf(D->getTargetData(), Form));
void DIEDelta::EmitValue(AsmPrinter *AP, unsigned Form) const {
AP->EmitLabelDifference(LabelHi, LabelLo,
SizeOf(&AP->getTargetData(), Form));
}
/// SizeOf - Determine size of delta value in bytes.
@ -308,8 +306,8 @@ void DIEDelta::print(raw_ostream &O) {
/// EmitValue - Emit debug information entry offset.
///
void DIEEntry::EmitValue(DwarfPrinter *D, unsigned Form) const {
D->getAsm()->EmitInt32(Entry->getOffset());
void DIEEntry::EmitValue(AsmPrinter *AP, unsigned Form) const {
AP->EmitInt32(Entry->getOffset());
}
#ifndef NDEBUG
@ -336,8 +334,7 @@ unsigned DIEBlock::ComputeSize(const TargetData *TD) {
/// EmitValue - Emit block data.
///
void DIEBlock::EmitValue(DwarfPrinter *D, unsigned Form) const {
const AsmPrinter *Asm = D->getAsm();
void DIEBlock::EmitValue(AsmPrinter *Asm, unsigned Form) const {
switch (Form) {
default: assert(0 && "Improper form for block"); break;
case dwarf::DW_FORM_block1: Asm->EmitInt8(Size); break;
@ -348,7 +345,7 @@ void DIEBlock::EmitValue(DwarfPrinter *D, unsigned Form) const {
const SmallVector<DIEAbbrevData, 8> &AbbrevData = Abbrev.getData();
for (unsigned i = 0, N = Values.size(); i < N; ++i)
Values[i]->EmitValue(D, AbbrevData[i].getForm());
Values[i]->EmitValue(Asm, AbbrevData[i].getForm());
}
/// SizeOf - Determine size of block data in bytes.

17
lib/CodeGen/AsmPrinter/DIE.h
View File

@ -22,7 +22,6 @@
namespace llvm {
class AsmPrinter;
class DwarfPrinter;
class TargetData;
class MCSymbol;
class raw_ostream;
@ -101,7 +100,7 @@ namespace llvm {
/// Emit - Print the abbreviation using the specified asm printer.
///
void Emit(const DwarfPrinter *DP) const;
void Emit(AsmPrinter *AP) const;
#ifndef NDEBUG
void print(raw_ostream &O);
@ -221,7 +220,7 @@ namespace llvm {
/// EmitValue - Emit value via the Dwarf writer.
///
virtual void EmitValue(DwarfPrinter *D, unsigned Form) const = 0;
virtual void EmitValue(AsmPrinter *AP, unsigned Form) const = 0;
/// SizeOf - Return the size of a value in bytes.
///
@ -261,7 +260,7 @@ namespace llvm {
/// EmitValue - Emit integer of appropriate size.
///
virtual void EmitValue(DwarfPrinter *D, unsigned Form) const;
virtual void EmitValue(AsmPrinter *AP, unsigned Form) const;
/// SizeOf - Determine size of integer value in bytes.
///
@ -287,7 +286,7 @@ namespace llvm {
/// EmitValue - Emit string value.
///
virtual void EmitValue(DwarfPrinter *D, unsigned Form) const;
virtual void EmitValue(AsmPrinter *AP, unsigned Form) const;
/// SizeOf - Determine size of string value in bytes.
///
@ -314,7 +313,7 @@ namespace llvm {
/// EmitValue - Emit label value.
///
virtual void EmitValue(DwarfPrinter *D, unsigned Form) const;
virtual void EmitValue(AsmPrinter *AP, unsigned Form) const;
/// SizeOf - Determine size of label value in bytes.
///
@ -341,7 +340,7 @@ namespace llvm {
/// EmitValue - Emit delta value.
///
virtual void EmitValue(DwarfPrinter *D, unsigned Form) const;
virtual void EmitValue(AsmPrinter *AP, unsigned Form) const;
/// SizeOf - Determine size of delta value in bytes.
///
@ -369,7 +368,7 @@ namespace llvm {
/// EmitValue - Emit debug information entry offset.
///
virtual void EmitValue(DwarfPrinter *D, unsigned Form) const;
virtual void EmitValue(AsmPrinter *AP, unsigned Form) const;
/// SizeOf - Determine size of debug information entry in bytes.
///
@ -411,7 +410,7 @@ namespace llvm {
/// EmitValue - Emit block data.
///
virtual void EmitValue(DwarfPrinter *D, unsigned Form) const;
virtual void EmitValue(AsmPrinter *AP, unsigned Form) const;
/// SizeOf - Determine size of block data in bytes.
///

183
lib/CodeGen/AsmPrinter/DwarfDebug.cpp
View File

@ -300,7 +300,7 @@ DbgScope::~DbgScope() {
} // end llvm namespace
DwarfDebug::DwarfDebug(AsmPrinter *A)
: DwarfPrinter(A), ModuleCU(0),
: Asm(A), MMI(Asm->MMI), ModuleCU(0),
AbbreviationsSet(InitAbbreviationsSetSize), shouldEmit(false),
CurrentFnDbgScope(0), DebugTimer(0) {
NextStringPoolNumber = 0;
@ -403,7 +403,7 @@ void DwarfDebug::addDelta(DIE *Die, unsigned Attribute, unsigned Form,
///
void DwarfDebug::addBlock(DIE *Die, unsigned Attribute, unsigned Form,
DIEBlock *Block) {
Block->ComputeSize(TD);
Block->ComputeSize(&Asm->getTargetData());
DIEBlocks.push_back(Block); // Memoize so we can call the destructor later on.
Die->addValue(Attribute, Block->BestForm(), Block);
}
@ -557,6 +557,7 @@ void DwarfDebug::addComplexAddress(DbgVariable *&DV, DIE *Die,
// Decode the original location, and use that as the start of the byref
// variable's location.
const TargetRegisterInfo *RI = Asm->TM.getRegisterInfo();
unsigned Reg = RI->getDwarfRegNum(Location.getReg(), false);
DIEBlock *Block = new (DIEValueAllocator) DIEBlock();
@ -697,6 +698,7 @@ void DwarfDebug::addBlockByrefAddress(DbgVariable *&DV, DIE *Die,
// Decode the original location, and use that as the start of the byref
// variable's location.
const TargetRegisterInfo *RI = Asm->TM.getRegisterInfo();
unsigned Reg = RI->getDwarfRegNum(Location.getReg(), false);
DIEBlock *Block = new (DIEValueAllocator) DIEBlock();
@ -752,6 +754,7 @@ void DwarfDebug::addBlockByrefAddress(DbgVariable *&DV, DIE *Die,
/// provided.
void DwarfDebug::addAddress(DIE *Die, unsigned Attribute,
const MachineLocation &Location) {
const TargetRegisterInfo *RI = Asm->TM.getRegisterInfo();
unsigned Reg = RI->getDwarfRegNum(Location.getReg(), false);
DIEBlock *Block = new (DIEValueAllocator) DIEBlock();
@ -1118,7 +1121,8 @@ DIE *DwarfDebug::createMemberDIE(const DIDerivedType &DT) {
Offset -= FieldOffset;
// Maybe we need to work from the other end.
if (TD->isLittleEndian()) Offset = FieldSize - (Offset + Size);
if (Asm->getTargetData().isLittleEndian())
Offset = FieldSize - (Offset + Size);
addUInt(MemberDie, dwarf::DW_AT_bit_offset, 0, Offset);
// Here WD_AT_data_member_location points to the anonymous
@ -1276,7 +1280,7 @@ DbgScope *DwarfDebug::getUpdatedDbgScope(MDNode *N, const MachineInstr *MI,
if (!Parent && !InlinedAt) {
StringRef SPName = DISubprogram(N).getLinkageName();
if (SPName == MF->getFunction()->getName())
if (SPName == Asm->MF->getFunction()->getName())
CurrentFnDbgScope = NScope;
}
@ -1320,50 +1324,51 @@ DbgScope *DwarfDebug::getOrCreateAbstractScope(MDNode *N) {
/// If there are global variables in this scope then create and insert
/// DIEs for these variables.
DIE *DwarfDebug::updateSubprogramScopeDIE(MDNode *SPNode) {
DIE *SPDie = ModuleCU->getDIE(SPNode);
assert(SPDie && "Unable to find subprogram DIE!");
DISubprogram SP(SPNode);
DIE *SPDie = ModuleCU->getDIE(SPNode);
assert(SPDie && "Unable to find subprogram DIE!");
DISubprogram SP(SPNode);
// There is not any need to generate specification DIE for a function
// defined at compile unit level. If a function is defined inside another
// function then gdb prefers the definition at top level and but does not
// expect specification DIE in parent function. So avoid creating
// specification DIE for a function defined inside a function.
if (SP.isDefinition() && !SP.getContext().isCompileUnit() &&
!SP.getContext().isFile() && !SP.getContext().isSubprogram()) {
addUInt(SPDie, dwarf::DW_AT_declaration, dwarf::DW_FORM_flag, 1);
// Add arguments.
DICompositeType SPTy = SP.getType();
DIArray Args = SPTy.getTypeArray();
unsigned SPTag = SPTy.getTag();
if (SPTag == dwarf::DW_TAG_subroutine_type)
for (unsigned i = 1, N = Args.getNumElements(); i < N; ++i) {
DIE *Arg = new DIE(dwarf::DW_TAG_formal_parameter);
DIType ATy = DIType(DIType(Args.getElement(i).getNode()));
addType(Arg, ATy);
if (ATy.isArtificial())
addUInt(Arg, dwarf::DW_AT_artificial, dwarf::DW_FORM_flag, 1);
SPDie->addChild(Arg);
}
DIE *SPDeclDie = SPDie;
SPDie = new DIE(dwarf::DW_TAG_subprogram);
addDIEEntry(SPDie, dwarf::DW_AT_specification, dwarf::DW_FORM_ref4,
SPDeclDie);
ModuleCU->addDie(SPDie);
}
// There is not any need to generate specification DIE for a function
// defined at compile unit level. If a function is defined inside another
// function then gdb prefers the definition at top level and but does not
// expect specification DIE in parent function. So avoid creating
// specification DIE for a function defined inside a function.
if (SP.isDefinition() && !SP.getContext().isCompileUnit() &&
!SP.getContext().isFile() && !SP.getContext().isSubprogram()) {
addUInt(SPDie, dwarf::DW_AT_declaration, dwarf::DW_FORM_flag, 1);
// Add arguments.
DICompositeType SPTy = SP.getType();
DIArray Args = SPTy.getTypeArray();
unsigned SPTag = SPTy.getTag();
if (SPTag == dwarf::DW_TAG_subroutine_type)
for (unsigned i = 1, N = Args.getNumElements(); i < N; ++i) {
DIE *Arg = new DIE(dwarf::DW_TAG_formal_parameter);
DIType ATy = DIType(DIType(Args.getElement(i).getNode()));
addType(Arg, ATy);
if (ATy.isArtificial())
addUInt(Arg, dwarf::DW_AT_artificial, dwarf::DW_FORM_flag, 1);
SPDie->addChild(Arg);
}
DIE *SPDeclDie = SPDie;
SPDie = new DIE(dwarf::DW_TAG_subprogram);
addDIEEntry(SPDie, dwarf::DW_AT_specification, dwarf::DW_FORM_ref4,
SPDeclDie);
ModuleCU->addDie(SPDie);
}
addLabel(SPDie, dwarf::DW_AT_low_pc, dwarf::DW_FORM_addr,
Asm->GetTempSymbol("func_begin", Asm->getFunctionNumber()));
addLabel(SPDie, dwarf::DW_AT_high_pc, dwarf::DW_FORM_addr,
Asm->GetTempSymbol("func_end", Asm->getFunctionNumber()));
const TargetRegisterInfo *RI = Asm->TM.getRegisterInfo();
MachineLocation Location(RI->getFrameRegister(*Asm->MF));
addAddress(SPDie, dwarf::DW_AT_frame_base, Location);
addLabel(SPDie, dwarf::DW_AT_low_pc, dwarf::DW_FORM_addr,
Asm->GetTempSymbol("func_begin", SubprogramCount));
addLabel(SPDie, dwarf::DW_AT_high_pc, dwarf::DW_FORM_addr,
Asm->GetTempSymbol("func_end", SubprogramCount));
MachineLocation Location(RI->getFrameRegister(*MF));
addAddress(SPDie, dwarf::DW_AT_frame_base, Location);
if (!DISubprogram(SPNode).isLocalToUnit())
addUInt(SPDie, dwarf::DW_AT_external, dwarf::DW_FORM_flag, 1);
return SPDie;
if (!DISubprogram(SPNode).isLocalToUnit())
addUInt(SPDie, dwarf::DW_AT_external, dwarf::DW_FORM_flag, 1);
return SPDie;
}
/// constructLexicalScope - Construct new DW_TAG_lexical_block
@ -1381,9 +1386,10 @@ DIE *DwarfDebug::constructLexicalScopeDIE(DbgScope *Scope) {
return ScopeDIE;
addLabel(ScopeDIE, dwarf::DW_AT_low_pc, dwarf::DW_FORM_addr,
Start ? Start : Asm->GetTempSymbol("func_begin", SubprogramCount));
Start ? Start : Asm->GetTempSymbol("func_begin",
Asm->getFunctionNumber()));
addLabel(ScopeDIE, dwarf::DW_AT_high_pc, dwarf::DW_FORM_addr,
End ? End : Asm->GetTempSymbol("func_end", SubprogramCount));
End ? End : Asm->GetTempSymbol("func_end",Asm->getFunctionNumber()));
return ScopeDIE;
}
@ -1523,7 +1529,8 @@ DIE *DwarfDebug::constructVariableDIE(DbgVariable *DV, DbgScope *Scope) {
} else {
MachineLocation Location;
unsigned FrameReg;
int Offset = RI->getFrameIndexReference(*MF, DV->getFrameIndex(),
const TargetRegisterInfo *RI = Asm->TM.getRegisterInfo();
int Offset = RI->getFrameIndexReference(*Asm->MF, DV->getFrameIndex(),
FrameReg);
Location.set(FrameReg, Offset);
@ -1784,9 +1791,7 @@ void DwarfDebug::constructSubprogramDIE(MDNode *N) {
/// content. Create global DIEs and emit initial debug info sections.
/// This is inovked by the target AsmPrinter.
void DwarfDebug::beginModule(Module *M) {
this->M = M;
if (!MAI->doesSupportDebugInformation())
if (!Asm->MAI->doesSupportDebugInformation())
return;
TimeRegion Timer(DebugTimer);
@ -1825,7 +1830,7 @@ void DwarfDebug::beginModule(Module *M) {
// Print out .file directives to specify files for .loc directives. These are
// printed out early so that they precede any .loc directives.
if (MAI->hasDotLocAndDotFile()) {
if (Asm->MAI->hasDotLocAndDotFile()) {
for (unsigned i = 1, e = getNumSourceIds()+1; i != e; ++i) {
// Remember source id starts at 1.
std::pair<unsigned, unsigned> Id = getSourceDirectoryAndFileIds(i);
@ -1981,7 +1986,7 @@ DbgVariable *DwarfDebug::findAbstractVariable(DIVariable &Var,
void DwarfDebug::collectVariableInfo() {
if (!MMI) return;
const LLVMContext &Ctx = MF->getFunction()->getContext();
const LLVMContext &Ctx = Asm->MF->getFunction()->getContext();
MachineModuleInfo::VariableDbgInfoMapTy &VMap = MMI->getVariableDbgInfo();
for (MachineModuleInfo::VariableDbgInfoMapTy::iterator VI = VMap.begin(),
@ -2007,7 +2012,7 @@ void DwarfDebug::collectVariableInfo() {
}
// Collect variable information from DBG_VALUE machine instructions;
for (MachineFunction::const_iterator I = MF->begin(), E = MF->end();
for (MachineFunction::const_iterator I = Asm->MF->begin(), E = Asm->MF->end();
I != E; ++I) {
for (MachineBasicBlock::const_iterator II = I->begin(), IE = I->end();
II != IE; ++II) {
@ -2059,7 +2064,7 @@ void DwarfDebug::beginScope(const MachineInstr *MI) {
if (DL == PrevInstLoc)
return;
MDNode *Scope = DL.getScope(MF->getFunction()->getContext());
MDNode *Scope = DL.getScope(Asm->MF->getFunction()->getContext());
// FIXME: Should only verify each scope once!
if (!DIScope(Scope).Verify())
@ -2152,10 +2157,10 @@ bool DwarfDebug::extractScopeInformation() {
DenseMap<const MachineInstr *, unsigned> MIIndexMap;
unsigned MIIndex = 0;
LLVMContext &Ctx = MF->getFunction()->getContext();
LLVMContext &Ctx = Asm->MF->getFunction()->getContext();
// Scan each instruction and create scopes. First build working set of scopes.
for (MachineFunction::const_iterator I = MF->begin(), E = MF->end();
for (MachineFunction::const_iterator I = Asm->MF->begin(), E = Asm->MF->end();
I != E; ++I) {
for (MachineBasicBlock::const_iterator II = I->begin(), IE = I->end();
II != IE; ++II) {
@ -2179,7 +2184,7 @@ bool DwarfDebug::extractScopeInformation() {
// Build scope hierarchy using working set of scopes.
for (MachineFunction::const_iterator I = MF->begin(), E = MF->end();
for (MachineFunction::const_iterator I = Asm->MF->begin(), E = Asm->MF->end();
I != E; ++I) {
for (MachineBasicBlock::const_iterator II = I->begin(), IE = I->end();
II != IE; ++II) {
@ -2247,19 +2252,17 @@ bool DwarfDebug::extractScopeInformation() {
/// beginFunction - Gather pre-function debug information. Assumes being
/// emitted immediately after the function entry point.
void DwarfDebug::beginFunction(const MachineFunction *MF) {
this->MF = MF;
if (!ShouldEmitDwarfDebug()) return;
TimeRegion Timer(DebugTimer);
if (!extractScopeInformation())
return;
TimeRegion Timer(DebugTimer);
collectVariableInfo();
// Assumes in correct section after the entry point.
Asm->OutStreamer.EmitLabel(Asm->GetTempSymbol("func_begin",
++SubprogramCount));
Asm->getFunctionNumber()));
// Emit label for the implicitly defined dbg.stoppoint at the start of the
// function.
@ -2291,7 +2294,8 @@ void DwarfDebug::endFunction(const MachineFunction *MF) {
if (CurrentFnDbgScope) {
// Define end label for subprogram.
Asm->OutStreamer.EmitLabel(Asm->GetTempSymbol("func_end", SubprogramCount));
Asm->OutStreamer.EmitLabel(Asm->GetTempSymbol("func_end",
Asm->getFunctionNumber()));
// Get function line info.
if (!Lines.empty()) {
@ -2311,7 +2315,7 @@ void DwarfDebug::endFunction(const MachineFunction *MF) {
constructScopeDIE(CurrentFnDbgScope);
DebugFrames.push_back(FunctionDebugFrameInfo(SubprogramCount,
DebugFrames.push_back(FunctionDebugFrameInfo(Asm->getFunctionNumber(),
MMI->getFrameMoves()));
}
@ -2409,7 +2413,7 @@ DwarfDebug::computeSizeAndOffset(DIE *Die, unsigned Offset, bool Last) {
// Size the DIE attribute values.
for (unsigned i = 0, N = Values.size(); i < N; ++i)
// Size attribute value.
Offset += Values[i]->SizeOf(TD, AbbrevData[i].getForm());
Offset += Values[i]->SizeOf(&Asm->getTargetData(), AbbrevData[i].getForm());
// Size the DIE children if any.
if (!Children.empty()) {
@ -2459,7 +2463,7 @@ void DwarfDebug::EmitSectionLabels() {
const TargetLoweringObjectFile &TLOF = Asm->getObjFileLowering();
// Dwarf sections base addresses.
if (MAI->doesDwarfRequireFrameSection()) {
if (Asm->MAI->doesDwarfRequireFrameSection()) {
DwarfFrameSectionSym =
EmitSectionSym(Asm, TLOF.getDwarfFrameSection(), "section_debug_frame");
}
@ -2525,7 +2529,7 @@ void DwarfDebug::emitDIE(DIE *Die) {
}
default:
// Emit an attribute using the defined form.
Values[i]->EmitValue(this, Form);
Values[i]->EmitValue(Asm, Form);
break;
}
}
@ -2570,7 +2574,7 @@ void DwarfDebug::emitDebugInfo() {
Asm->EmitSectionOffset(Asm->GetTempSymbol("abbrev_begin"),
DwarfAbbrevSectionSym);
Asm->OutStreamer.AddComment("Address Size (in bytes)");
Asm->EmitInt8(TD->getPointerSize());
Asm->EmitInt8(Asm->getTargetData().getPointerSize());
emitDIE(Die);
// FIXME - extra padding for gdb bug.
@ -2602,7 +2606,7 @@ void DwarfDebug::emitAbbreviations() const {
Asm->EmitULEB128(Abbrev->getNumber(), "Abbreviation Code");
// Emit the abbreviations data.
Abbrev->Emit(this);
Abbrev->Emit(Asm);
}
// Mark end of abbreviations.
@ -2621,14 +2625,15 @@ void DwarfDebug::emitEndOfLineMatrix(unsigned SectionEnd) {
Asm->EmitInt8(0);
Asm->OutStreamer.AddComment("Op size");
Asm->EmitInt8(TD->getPointerSize() + 1);
Asm->EmitInt8(Asm->getTargetData().getPointerSize() + 1);
Asm->OutStreamer.AddComment("DW_LNE_set_address");
Asm->EmitInt8(dwarf::DW_LNE_set_address);
Asm->OutStreamer.AddComment("Section end label");
Asm->OutStreamer.EmitSymbolValue(Asm->GetTempSymbol("section_end",SectionEnd),
TD->getPointerSize(), 0/*AddrSpace*/);
Asm->getTargetData().getPointerSize(),
0/*AddrSpace*/);
// Mark end of matrix.
Asm->OutStreamer.AddComment("DW_LNE_end_sequence");
@ -2642,7 +2647,7 @@ void DwarfDebug::emitEndOfLineMatrix(unsigned SectionEnd) {
void DwarfDebug::emitDebugLines() {
// If the target is using .loc/.file, the assembler will be emitting the
// .debug_line table automatically.
if (MAI->hasDotLocAndDotFile())
if (Asm->MAI->hasDotLocAndDotFile())
return;
// Minimum line delta, thus ranging from -10..(255-10).
@ -2759,13 +2764,14 @@ void DwarfDebug::emitDebugLines() {
Asm->OutStreamer.AddComment("Extended Op");
Asm->EmitInt8(0);
Asm->OutStreamer.AddComment("Op size");
Asm->EmitInt8(TD->getPointerSize() + 1);
Asm->EmitInt8(Asm->getTargetData().getPointerSize() + 1);
Asm->OutStreamer.AddComment("DW_LNE_set_address");
Asm->EmitInt8(dwarf::DW_LNE_set_address);
Asm->OutStreamer.AddComment("Location label");
Asm->OutStreamer.EmitSymbolValue(Label, TD->getPointerSize(),
Asm->OutStreamer.EmitSymbolValue(Label,
Asm->getTargetData().getPointerSize(),
0/*AddrSpace*/);
// If change of source, then switch to the new source.
@ -2820,13 +2826,13 @@ void DwarfDebug::emitDebugLines() {
/// emitCommonDebugFrame - Emit common frame info into a debug frame section.
///
void DwarfDebug::emitCommonDebugFrame() {
if (!MAI->doesDwarfRequireFrameSection())
if (!Asm->MAI->doesDwarfRequireFrameSection())
return;
int stackGrowth =
Asm->TM.getFrameInfo()->getStackGrowthDirection() ==
TargetFrameInfo::StackGrowsUp ?
TD->getPointerSize() : -TD->getPointerSize();
int stackGrowth = Asm->getTargetData().getPointerSize();
if (Asm->TM.getFrameInfo()->getStackGrowthDirection() ==
TargetFrameInfo::StackGrowsDown)
stackGrowth *= -1;
// Start the dwarf frame section.
Asm->OutStreamer.SwitchSection(
@ -2847,6 +2853,7 @@ void DwarfDebug::emitCommonDebugFrame() {
Asm->EmitULEB128(1, "CIE Code Alignment Factor");
Asm->EmitSLEB128(stackGrowth, "CIE Data Alignment Factor");
Asm->OutStreamer.AddComment("CIE RA Column");
const TargetRegisterInfo *RI = Asm->TM.getRegisterInfo();
Asm->EmitInt8(RI->getDwarfRegNum(RI->getRARegister(), false));
std::vector<MachineMove> Moves;
@ -2862,7 +2869,7 @@ void DwarfDebug::emitCommonDebugFrame() {
/// section.
void DwarfDebug::
emitFunctionDebugFrame(const FunctionDebugFrameInfo &DebugFrameInfo) {
if (!MAI->doesDwarfRequireFrameSection())
if (!Asm->MAI->doesDwarfRequireFrameSection())
return;
// Start the dwarf frame section.
@ -2886,12 +2893,13 @@ emitFunctionDebugFrame(const FunctionDebugFrameInfo &DebugFrameInfo) {
MCSymbol *FuncBeginSym =
Asm->GetTempSymbol("func_begin", DebugFrameInfo.Number);
Asm->OutStreamer.EmitSymbolValue(FuncBeginSym,
TD->getPointerSize(), 0/*AddrSpace*/);
Asm->getTargetData().getPointerSize(),
0/*AddrSpace*/);
Asm->OutStreamer.AddComment("FDE address range");
Asm->EmitLabelDifference(Asm->GetTempSymbol("func_end",DebugFrameInfo.Number),
FuncBeginSym, TD->getPointerSize());
FuncBeginSym, Asm->getTargetData().getPointerSize());
Asm->EmitFrameMoves(DebugFrameInfo.Moves, FuncBeginSym, false);
@ -3072,7 +3080,7 @@ void DwarfDebug::emitDebugMacInfo() {
/// __debug_info section, and the low_pc is the starting address for the
/// inlining instance.
void DwarfDebug::emitDebugInlineInfo() {
if (!MAI->doesDwarfUsesInlineInfoSection())
if (!Asm->MAI->doesDwarfUsesInlineInfoSection())
return;
if (!ModuleCU)
@ -3090,7 +3098,7 @@ void DwarfDebug::emitDebugInlineInfo() {
Asm->OutStreamer.AddComment("Dwarf Version");
Asm->EmitInt16(dwarf::DWARF_VERSION);
Asm->OutStreamer.AddComment("Address Size (in bytes)");
Asm->EmitInt8(TD->getPointerSize());
Asm->EmitInt8(Asm->getTargetData().getPointerSize());
for (SmallVector<MDNode *, 4>::iterator I = InlinedSPNodes.begin(),
E = InlinedSPNodes.end(); I != E; ++I) {
@ -3121,7 +3129,8 @@ void DwarfDebug::emitDebugInlineInfo() {
Asm->EmitInt32(LI->second->getOffset());
if (Asm->isVerbose()) Asm->OutStreamer.AddComment("low_pc");
Asm->OutStreamer.EmitSymbolValue(LI->first, TD->getPointerSize(), 0);
Asm->OutStreamer.EmitSymbolValue(LI->first,
Asm->getTargetData().getPointerSize(),0);
}
}

8
lib/CodeGen/AsmPrinter/DwarfDebug.h
View File

@ -15,7 +15,6 @@
#define CODEGEN_ASMPRINTER_DWARFDEBUG_H__
#include "DIE.h"
#include "DwarfPrinter.h"
#include "llvm/CodeGen/AsmPrinter.h"
#include "llvm/CodeGen/MachineLocation.h"
#include "llvm/Analysis/DebugInfo.h"
@ -58,7 +57,12 @@ public:
MCSymbol *getLabel() const { return Label; }
};
class DwarfDebug : public DwarfPrinter {
class DwarfDebug {
/// Asm - Target of Dwarf emission.
AsmPrinter *Asm;
/// MMI - Collected machine module information.
MachineModuleInfo *MMI;
//===--------------------------------------------------------------------===//
// Attributes used to construct specific Dwarf sections.
//

2
lib/CodeGen/AsmPrinter/DwarfWriter.cpp
View File

@ -65,7 +65,7 @@ void DwarfWriter::EndFunction(const MachineFunction *MF) {
DD->endFunction(MF);
DE->EndFunction();
if (MachineModuleInfo *MMI = DD->getMMI() ? DD->getMMI() : DE->getMMI())
if (MachineModuleInfo *MMI = DE->getMMI())
// Clear function debug information.
MMI->EndFunction();
}