//
//===----------------------------------------------------------------------===//
-#include "DIE.h"
+#include "llvm/CodeGen/DIE.h"
+#include "DwarfCompileUnit.h"
#include "DwarfDebug.h"
#include "DwarfUnit.h"
#include "llvm/ADT/Twine.h"
#include "llvm/CodeGen/AsmPrinter.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/MC/MCAsmInfo.h"
+#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCSymbol.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/FormattedStream.h"
#include "llvm/Support/LEB128.h"
#include "llvm/Support/MD5.h"
+#include "llvm/Support/raw_ostream.h"
using namespace llvm;
//===----------------------------------------------------------------------===//
/// Emit - Print the abbreviation using the specified asm printer.
///
-void DIEAbbrev::Emit(AsmPrinter *AP) const {
+void DIEAbbrev::Emit(const AsmPrinter *AP) const {
// Emit its Dwarf tag type.
AP->EmitULEB128(Tag, dwarf::TagString(Tag));
void DIEAbbrev::dump() { print(dbgs()); }
#endif
-//===----------------------------------------------------------------------===//
-// DIE Implementation
-//===----------------------------------------------------------------------===//
-
-DIE::~DIE() {
- for (unsigned i = 0, N = Children.size(); i < N; ++i)
- delete Children[i];
+DIEAbbrev DIE::generateAbbrev() const {
+ DIEAbbrev Abbrev(Tag, hasChildren());
+ for (const DIEValue &V : Values)
+ Abbrev.AddAttribute(V.getAttribute(), V.getForm());
+ return Abbrev;
}
/// Climb up the parent chain to get the unit DIE to which this DIE
return p;
p = p->getParent();
}
- return NULL;
+ return nullptr;
}
-DIEValue *DIE::findAttribute(dwarf::Attribute Attribute) const {
- const SmallVectorImpl<DIEValue *> &Values = getValues();
- const DIEAbbrev &Abbrevs = getAbbrev();
-
+DIEValue DIE::findAttribute(dwarf::Attribute Attribute) const {
// Iterate through all the attributes until we find the one we're
// looking for, if we can't find it return NULL.
- for (size_t i = 0; i < Values.size(); ++i)
- if (Abbrevs.getData()[i].getAttribute() == Attribute)
- return Values[i];
- return NULL;
+ for (const auto &V : values())
+ if (V.getAttribute() == Attribute)
+ return V;
+ return DIEValue();
}
#ifndef NDEBUG
void DIE::print(raw_ostream &O, unsigned IndentCount) const {
const std::string Indent(IndentCount, ' ');
- bool isBlock = Abbrev.getTag() == 0;
+ bool isBlock = getTag() == 0;
if (!isBlock) {
O << Indent
<< ", Size: " << Size << "\n";
O << Indent
- << dwarf::TagString(Abbrev.getTag())
+ << dwarf::TagString(getTag())
<< " "
- << dwarf::ChildrenString(Abbrev.hasChildren()) << "\n";
+ << dwarf::ChildrenString(hasChildren()) << "\n";
} else {
O << "Size: " << Size << "\n";
}
- const SmallVectorImpl<DIEAbbrevData> &Data = Abbrev.getData();
-
IndentCount += 2;
- for (unsigned i = 0, N = Data.size(); i < N; ++i) {
+ unsigned I = 0;
+ for (const auto &V : Values) {
O << Indent;
if (!isBlock)
- O << dwarf::AttributeString(Data[i].getAttribute());
+ O << dwarf::AttributeString(V.getAttribute());
else
- O << "Blk[" << i << "]";
+ O << "Blk[" << I++ << "]";
- O << " "
- << dwarf::FormEncodingString(Data[i].getForm())
- << " ";
- Values[i]->print(O);
+ O << " " << dwarf::FormEncodingString(V.getForm()) << " ";
+ V.print(O);
O << "\n";
}
IndentCount -= 2;
- for (unsigned j = 0, M = Children.size(); j < M; ++j) {
- Children[j]->print(O, IndentCount+4);
- }
+ for (const auto &Child : children())
+ Child.print(O, IndentCount + 4);
if (!isBlock) O << "\n";
}
}
#endif
-void DIEValue::anchor() { }
+void DIEValue::EmitValue(const AsmPrinter *AP) const {
+ switch (Ty) {
+ case isNone:
+ llvm_unreachable("Expected valid DIEValue");
+#define HANDLE_DIEVALUE(T) \
+ case is##T: \
+ getDIE##T().EmitValue(AP, Form); \
+ break;
+#include "llvm/CodeGen/DIEValue.def"
+ }
+}
+
+unsigned DIEValue::SizeOf(const AsmPrinter *AP) const {
+ switch (Ty) {
+ case isNone:
+ llvm_unreachable("Expected valid DIEValue");
+#define HANDLE_DIEVALUE(T) \
+ case is##T: \
+ return getDIE##T().SizeOf(AP, Form);
+#include "llvm/CodeGen/DIEValue.def"
+ }
+ llvm_unreachable("Unknown DIE kind");
+}
#ifndef NDEBUG
+void DIEValue::print(raw_ostream &O) const {
+ switch (Ty) {
+ case isNone:
+ llvm_unreachable("Expected valid DIEValue");
+#define HANDLE_DIEVALUE(T) \
+ case is##T: \
+ getDIE##T().print(O); \
+ break;
+#include "llvm/CodeGen/DIEValue.def"
+ }
+}
+
void DIEValue::dump() const {
print(dbgs());
}
/// EmitValue - Emit integer of appropriate size.
///
-void DIEInteger::EmitValue(AsmPrinter *Asm, dwarf::Form Form) const {
+void DIEInteger::EmitValue(const AsmPrinter *Asm, dwarf::Form Form) const {
unsigned Size = ~0U;
switch (Form) {
case dwarf::DW_FORM_flag_present:
// Emit something to keep the lines and comments in sync.
// FIXME: Is there a better way to do this?
- Asm->OutStreamer.AddBlankLine();
+ Asm->OutStreamer->AddBlankLine();
return;
case dwarf::DW_FORM_flag: // Fall thru
case dwarf::DW_FORM_ref1: // Fall thru
case dwarf::DW_FORM_ref2: // Fall thru
case dwarf::DW_FORM_data2: Size = 2; break;
case dwarf::DW_FORM_sec_offset: // Fall thru
+ case dwarf::DW_FORM_strp: // Fall thru
case dwarf::DW_FORM_ref4: // Fall thru
case dwarf::DW_FORM_data4: Size = 4; break;
case dwarf::DW_FORM_ref8: // Fall thru
case dwarf::DW_FORM_sdata: Asm->EmitSLEB128(Integer); return;
case dwarf::DW_FORM_addr:
Size = Asm->getDataLayout().getPointerSize(); break;
+ case dwarf::DW_FORM_ref_addr:
+ Size = SizeOf(Asm, dwarf::DW_FORM_ref_addr);
+ break;
default: llvm_unreachable("DIE Value form not supported yet");
}
- Asm->OutStreamer.EmitIntValue(Integer, Size);
+ Asm->OutStreamer->EmitIntValue(Integer, Size);
}
/// SizeOf - Determine size of integer value in bytes.
///
-unsigned DIEInteger::SizeOf(AsmPrinter *AP, dwarf::Form Form) const {
+unsigned DIEInteger::SizeOf(const AsmPrinter *AP, dwarf::Form Form) const {
switch (Form) {
case dwarf::DW_FORM_flag_present: return 0;
case dwarf::DW_FORM_flag: // Fall thru
case dwarf::DW_FORM_ref2: // Fall thru
case dwarf::DW_FORM_data2: return sizeof(int16_t);
case dwarf::DW_FORM_sec_offset: // Fall thru
+ case dwarf::DW_FORM_strp: // Fall thru
case dwarf::DW_FORM_ref4: // Fall thru
case dwarf::DW_FORM_data4: return sizeof(int32_t);
case dwarf::DW_FORM_ref8: // Fall thru
case dwarf::DW_FORM_udata: return getULEB128Size(Integer);
case dwarf::DW_FORM_sdata: return getSLEB128Size(Integer);
case dwarf::DW_FORM_addr: return AP->getDataLayout().getPointerSize();
+ case dwarf::DW_FORM_ref_addr:
+ if (AP->OutStreamer->getContext().getDwarfVersion() == 2)
+ return AP->getDataLayout().getPointerSize();
+ return sizeof(int32_t);
default: llvm_unreachable("DIE Value form not supported yet");
}
}
/// EmitValue - Emit expression value.
///
-void DIEExpr::EmitValue(AsmPrinter *AP, dwarf::Form Form) const {
- AP->OutStreamer.EmitValue(Expr, SizeOf(AP, Form));
+void DIEExpr::EmitValue(const AsmPrinter *AP, dwarf::Form Form) const {
+ AP->OutStreamer->EmitValue(Expr, SizeOf(AP, Form));
}
/// SizeOf - Determine size of expression value in bytes.
///
-unsigned DIEExpr::SizeOf(AsmPrinter *AP, dwarf::Form Form) const {
+unsigned DIEExpr::SizeOf(const AsmPrinter *AP, dwarf::Form Form) const {
if (Form == dwarf::DW_FORM_data4) return 4;
if (Form == dwarf::DW_FORM_sec_offset) return 4;
if (Form == dwarf::DW_FORM_strp) return 4;
}
#ifndef NDEBUG
-void DIEExpr::print(raw_ostream &O) const {
- O << "Expr: ";
- Expr->print(O);
-}
+void DIEExpr::print(raw_ostream &O) const { O << "Expr: " << *Expr; }
#endif
//===----------------------------------------------------------------------===//
/// EmitValue - Emit label value.
///
-void DIELabel::EmitValue(AsmPrinter *AP, dwarf::Form Form) const {
+void DIELabel::EmitValue(const AsmPrinter *AP, dwarf::Form Form) const {
AP->EmitLabelReference(Label, SizeOf(AP, Form),
Form == dwarf::DW_FORM_strp ||
Form == dwarf::DW_FORM_sec_offset ||
/// SizeOf - Determine size of label value in bytes.
///
-unsigned DIELabel::SizeOf(AsmPrinter *AP, dwarf::Form Form) const {
+unsigned DIELabel::SizeOf(const AsmPrinter *AP, dwarf::Form Form) const {
if (Form == dwarf::DW_FORM_data4) return 4;
if (Form == dwarf::DW_FORM_sec_offset) return 4;
if (Form == dwarf::DW_FORM_strp) return 4;
}
#ifndef NDEBUG
-void DIELabel::print(raw_ostream &O) const {
- O << "Lbl: " << Label->getName();
-}
+void DIELabel::print(raw_ostream &O) const { O << "Lbl: " << Label->getName(); }
#endif
//===----------------------------------------------------------------------===//
/// EmitValue - Emit delta value.
///
-void DIEDelta::EmitValue(AsmPrinter *AP, dwarf::Form Form) const {
+void DIEDelta::EmitValue(const AsmPrinter *AP, dwarf::Form Form) const {
AP->EmitLabelDifference(LabelHi, LabelLo, SizeOf(AP, Form));
}
/// SizeOf - Determine size of delta value in bytes.
///
-unsigned DIEDelta::SizeOf(AsmPrinter *AP, dwarf::Form Form) const {
+unsigned DIEDelta::SizeOf(const AsmPrinter *AP, dwarf::Form Form) const {
if (Form == dwarf::DW_FORM_data4) return 4;
if (Form == dwarf::DW_FORM_sec_offset) return 4;
if (Form == dwarf::DW_FORM_strp) return 4;
/// EmitValue - Emit string value.
///
-void DIEString::EmitValue(AsmPrinter *AP, dwarf::Form Form) const {
- Access->EmitValue(AP, Form);
+void DIEString::EmitValue(const AsmPrinter *AP, dwarf::Form Form) const {
+ assert(
+ (Form == dwarf::DW_FORM_strp || Form == dwarf::DW_FORM_GNU_str_index) &&
+ "Expected valid string form");
+
+ // Index of string in symbol table.
+ if (Form == dwarf::DW_FORM_GNU_str_index) {
+ DIEInteger(S.getIndex()).EmitValue(AP, Form);
+ return;
+ }
+
+ // Relocatable symbol.
+ assert(Form == dwarf::DW_FORM_strp);
+ if (AP->MAI->doesDwarfUseRelocationsAcrossSections()) {
+ DIELabel(S.getSymbol()).EmitValue(AP, Form);
+ return;
+ }
+
+ // Offset into symbol table.
+ DIEInteger(S.getOffset()).EmitValue(AP, Form);
}
/// SizeOf - Determine size of delta value in bytes.
///
-unsigned DIEString::SizeOf(AsmPrinter *AP, dwarf::Form Form) const {
- return Access->SizeOf(AP, Form);
+unsigned DIEString::SizeOf(const AsmPrinter *AP, dwarf::Form Form) const {
+ assert(
+ (Form == dwarf::DW_FORM_strp || Form == dwarf::DW_FORM_GNU_str_index) &&
+ "Expected valid string form");
+
+ // Index of string in symbol table.
+ if (Form == dwarf::DW_FORM_GNU_str_index)
+ return DIEInteger(S.getIndex()).SizeOf(AP, Form);
+
+ // Relocatable symbol.
+ if (AP->MAI->doesDwarfUseRelocationsAcrossSections())
+ return DIELabel(S.getSymbol()).SizeOf(AP, Form);
+
+ // Offset into symbol table.
+ return DIEInteger(S.getOffset()).SizeOf(AP, Form);
}
#ifndef NDEBUG
void DIEString::print(raw_ostream &O) const {
- O << "String: " << Str << "\tSymbol: ";
- Access->print(O);
+ O << "String: " << S.getString();
}
#endif
/// EmitValue - Emit debug information entry offset.
///
-void DIEEntry::EmitValue(AsmPrinter *AP, dwarf::Form Form) const {
+void DIEEntry::EmitValue(const AsmPrinter *AP, dwarf::Form Form) const {
if (Form == dwarf::DW_FORM_ref_addr) {
const DwarfDebug *DD = AP->getDwarfDebug();
AP->EmitLabelPlusOffset(CU->getSectionSym(), Addr,
DIEEntry::getRefAddrSize(AP));
else
- AP->EmitLabelOffsetDifference(CU->getSectionSym(), Addr,
- CU->getSectionSym(),
- DIEEntry::getRefAddrSize(AP));
+ AP->OutStreamer->EmitIntValue(Addr, DIEEntry::getRefAddrSize(AP));
} else
AP->EmitInt32(Entry->getOffset());
}
-unsigned DIEEntry::getRefAddrSize(AsmPrinter *AP) {
+unsigned DIEEntry::getRefAddrSize(const AsmPrinter *AP) {
// DWARF4: References that use the attribute form DW_FORM_ref_addr are
// specified to be four bytes in the DWARF 32-bit format and eight bytes
// in the DWARF 64-bit format, while DWARF Version 2 specifies that such
#ifndef NDEBUG
void DIEEntry::print(raw_ostream &O) const {
- O << format("Die: 0x%lx", (long)(intptr_t)Entry);
+ O << format("Die: 0x%lx", (long)(intptr_t)&Entry);
}
#endif
//===----------------------------------------------------------------------===//
// DIETypeSignature Implementation
//===----------------------------------------------------------------------===//
-void DIETypeSignature::EmitValue(AsmPrinter *Asm, dwarf::Form Form) const {
+void DIETypeSignature::EmitValue(const AsmPrinter *Asm,
+ dwarf::Form Form) const {
assert(Form == dwarf::DW_FORM_ref_sig8);
- Asm->OutStreamer.EmitIntValue(Unit.getTypeSignature(), 8);
+ Asm->OutStreamer->EmitIntValue(Unit->getTypeSignature(), 8);
}
#ifndef NDEBUG
void DIETypeSignature::print(raw_ostream &O) const {
- O << format("Type Unit: 0x%lx", Unit.getTypeSignature());
+ O << format("Type Unit: 0x%lx", Unit->getTypeSignature());
}
-
-void DIETypeSignature::dump() const { print(dbgs()); }
#endif
//===----------------------------------------------------------------------===//
/// ComputeSize - calculate the size of the location expression.
///
-unsigned DIELoc::ComputeSize(AsmPrinter *AP) const {
+unsigned DIELoc::ComputeSize(const AsmPrinter *AP) const {
if (!Size) {
- const SmallVectorImpl<DIEAbbrevData> &AbbrevData = Abbrev.getData();
- for (unsigned i = 0, N = Values.size(); i < N; ++i)
- Size += Values[i]->SizeOf(AP, AbbrevData[i].getForm());
+ for (const auto &V : Values)
+ Size += V.SizeOf(AP);
}
return Size;
/// EmitValue - Emit location data.
///
-void DIELoc::EmitValue(AsmPrinter *Asm, dwarf::Form Form) const {
+void DIELoc::EmitValue(const AsmPrinter *Asm, dwarf::Form Form) const {
switch (Form) {
default: llvm_unreachable("Improper form for block");
case dwarf::DW_FORM_block1: Asm->EmitInt8(Size); break;
Asm->EmitULEB128(Size); break;
}
- const SmallVectorImpl<DIEAbbrevData> &AbbrevData = Abbrev.getData();
- for (unsigned i = 0, N = Values.size(); i < N; ++i)
- Values[i]->EmitValue(Asm, AbbrevData[i].getForm());
+ for (const auto &V : Values)
+ V.EmitValue(Asm);
}
/// SizeOf - Determine size of location data in bytes.
///
-unsigned DIELoc::SizeOf(AsmPrinter *AP, dwarf::Form Form) const {
+unsigned DIELoc::SizeOf(const AsmPrinter *AP, dwarf::Form Form) const {
switch (Form) {
case dwarf::DW_FORM_block1: return Size + sizeof(int8_t);
case dwarf::DW_FORM_block2: return Size + sizeof(int16_t);
/// ComputeSize - calculate the size of the block.
///
-unsigned DIEBlock::ComputeSize(AsmPrinter *AP) const {
+unsigned DIEBlock::ComputeSize(const AsmPrinter *AP) const {
if (!Size) {
- const SmallVectorImpl<DIEAbbrevData> &AbbrevData = Abbrev.getData();
- for (unsigned i = 0, N = Values.size(); i < N; ++i)
- Size += Values[i]->SizeOf(AP, AbbrevData[i].getForm());
+ for (const auto &V : Values)
+ Size += V.SizeOf(AP);
}
return Size;
/// EmitValue - Emit block data.
///
-void DIEBlock::EmitValue(AsmPrinter *Asm, dwarf::Form Form) const {
+void DIEBlock::EmitValue(const AsmPrinter *Asm, dwarf::Form Form) const {
switch (Form) {
default: llvm_unreachable("Improper form for block");
case dwarf::DW_FORM_block1: Asm->EmitInt8(Size); break;
case dwarf::DW_FORM_block: Asm->EmitULEB128(Size); break;
}
- const SmallVectorImpl<DIEAbbrevData> &AbbrevData = Abbrev.getData();
- for (unsigned i = 0, N = Values.size(); i < N; ++i)
- Values[i]->EmitValue(Asm, AbbrevData[i].getForm());
+ for (const auto &V : Values)
+ V.EmitValue(Asm);
}
/// SizeOf - Determine size of block data in bytes.
///
-unsigned DIEBlock::SizeOf(AsmPrinter *AP, dwarf::Form Form) const {
+unsigned DIEBlock::SizeOf(const AsmPrinter *AP, dwarf::Form Form) const {
switch (Form) {
case dwarf::DW_FORM_block1: return Size + sizeof(int8_t);
case dwarf::DW_FORM_block2: return Size + sizeof(int16_t);
// DIELocList Implementation
//===----------------------------------------------------------------------===//
-unsigned DIELocList::SizeOf(AsmPrinter *AP, dwarf::Form Form) const {
+unsigned DIELocList::SizeOf(const AsmPrinter *AP, dwarf::Form Form) const {
if (Form == dwarf::DW_FORM_data4)
return 4;
if (Form == dwarf::DW_FORM_sec_offset)
/// EmitValue - Emit label value.
///
-void DIELocList::EmitValue(AsmPrinter *AP, dwarf::Form Form) const {
+void DIELocList::EmitValue(const AsmPrinter *AP, dwarf::Form Form) const {
DwarfDebug *DD = AP->getDwarfDebug();
- MCSymbol *Label = DD->getDebugLocEntries()[Index].Label;
-
- if (AP->MAI->doesDwarfUseRelocationsAcrossSections() && !DD->useSplitDwarf())
- AP->EmitSectionOffset(Label, DD->getDebugLocSym());
- else
- AP->EmitLabelDifference(Label, DD->getDebugLocSym(), 4);
+ MCSymbol *Label = DD->getDebugLocs().getList(Index).Label;
+ AP->emitDwarfSymbolReference(Label, /*ForceOffset*/ DD->useSplitDwarf());
}
#ifndef NDEBUG
-void DIELocList::print(raw_ostream &O) const {
- O << "LocList: " << Index;
-
-}
+void DIELocList::print(raw_ostream &O) const { O << "LocList: " << Index; }
#endif
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