//===----------------------------------------------------------------------===//
#include "DIE.h"
+#include "DwarfDebug.h"
+#include "DwarfUnit.h"
#include "llvm/ADT/Twine.h"
#include "llvm/CodeGen/AsmPrinter.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/FormattedStream.h"
+#include "llvm/Support/MD5.h"
using namespace llvm;
//===----------------------------------------------------------------------===//
/// Profile - Used to gather unique data for the abbreviation folding set.
///
void DIEAbbrevData::Profile(FoldingSetNodeID &ID) const {
- ID.AddInteger(Attribute);
- ID.AddInteger(Form);
+ // Explicitly cast to an integer type for which FoldingSetNodeID has
+ // overloads. Otherwise MSVC 2010 thinks this call is ambiguous.
+ ID.AddInteger(unsigned(Attribute));
+ ID.AddInteger(unsigned(Form));
}
//===----------------------------------------------------------------------===//
/// Profile - Used to gather unique data for the abbreviation folding set.
///
void DIEAbbrev::Profile(FoldingSetNodeID &ID) const {
- ID.AddInteger(Tag);
+ ID.AddInteger(unsigned(Tag));
ID.AddInteger(ChildrenFlag);
// For each attribute description.
delete Children[i];
}
-/// Climb up the parent chain to get the compile unit DIE to which this DIE
+/// Climb up the parent chain to get the unit DIE to which this DIE
/// belongs.
-DIE *DIE::getCompileUnit() {
- DIE *p = this;
+const DIE *DIE::getUnit() const {
+ const DIE *Cu = getUnitOrNull();
+ assert(Cu && "We should not have orphaned DIEs.");
+ return Cu;
+}
+
+/// Climb up the parent chain to get the unit DIE this DIE belongs
+/// to. Return NULL if DIE is not added to an owner yet.
+const DIE *DIE::getUnitOrNull() const {
+ const DIE *p = this;
while (p) {
- if (p->getTag() == dwarf::DW_TAG_compile_unit)
+ if (p->getTag() == dwarf::DW_TAG_compile_unit ||
+ p->getTag() == dwarf::DW_TAG_type_unit)
return p;
p = p->getParent();
}
- llvm_unreachable("We should not have orphaned DIEs.");
+ return NULL;
+}
+
+DIEValue *DIE::findAttribute(uint16_t Attribute) const {
+ const SmallVectorImpl<DIEValue *> &Values = getValues();
+ const DIEAbbrev &Abbrevs = getAbbrev();
+
+ // 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;
}
#ifndef NDEBUG
/// EmitValue - Emit integer of appropriate size.
///
-void DIEInteger::EmitValue(AsmPrinter *Asm, unsigned Form) const {
+void DIEInteger::EmitValue(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?
- if (Asm->OutStreamer.hasRawTextSupport())
- Asm->OutStreamer.EmitRawText(StringRef(""));
+ Asm->OutStreamer.AddBlankLine();
return;
case dwarf::DW_FORM_flag: // Fall thru
case dwarf::DW_FORM_ref1: // 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_ref_sig8: // Fall thru
case dwarf::DW_FORM_data8: Size = 8; break;
case dwarf::DW_FORM_GNU_str_index: Asm->EmitULEB128(Integer); return;
case dwarf::DW_FORM_GNU_addr_index: Asm->EmitULEB128(Integer); return;
/// SizeOf - Determine size of integer value in bytes.
///
-unsigned DIEInteger::SizeOf(AsmPrinter *AP, unsigned Form) const {
+unsigned DIEInteger::SizeOf(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_ref4: // Fall thru
case dwarf::DW_FORM_data4: return sizeof(int32_t);
case dwarf::DW_FORM_ref8: // Fall thru
+ case dwarf::DW_FORM_ref_sig8: // Fall thru
case dwarf::DW_FORM_data8: return sizeof(int64_t);
case dwarf::DW_FORM_GNU_str_index: return MCAsmInfo::getULEB128Size(Integer);
case dwarf::DW_FORM_GNU_addr_index: return MCAsmInfo::getULEB128Size(Integer);
}
#endif
+//===----------------------------------------------------------------------===//
+// DIEExpr Implementation
+//===----------------------------------------------------------------------===//
+
+/// EmitValue - Emit expression value.
+///
+void DIEExpr::EmitValue(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 {
+ 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;
+ return AP->getDataLayout().getPointerSize();
+}
+
+#ifndef NDEBUG
+void DIEExpr::print(raw_ostream &O) const {
+ O << "Expr: ";
+ Expr->print(O);
+}
+#endif
+
//===----------------------------------------------------------------------===//
// DIELabel Implementation
//===----------------------------------------------------------------------===//
/// EmitValue - Emit label value.
///
-void DIELabel::EmitValue(AsmPrinter *AP, unsigned Form) const {
- AP->OutStreamer.EmitSymbolValue(Label, SizeOf(AP, Form));
+void DIELabel::EmitValue(AsmPrinter *AP, dwarf::Form Form) const {
+ AP->EmitLabelReference(Label, SizeOf(AP, Form),
+ Form == dwarf::DW_FORM_strp ||
+ Form == dwarf::DW_FORM_sec_offset ||
+ Form == dwarf::DW_FORM_ref_addr);
}
/// SizeOf - Determine size of label value in bytes.
///
-unsigned DIELabel::SizeOf(AsmPrinter *AP, unsigned Form) const {
+unsigned DIELabel::SizeOf(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 delta value.
///
-void DIEDelta::EmitValue(AsmPrinter *AP, unsigned Form) const {
+void DIEDelta::EmitValue(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, unsigned Form) const {
+unsigned DIEDelta::SizeOf(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;
return AP->getDataLayout().getPointerSize();
}
}
#endif
+//===----------------------------------------------------------------------===//
+// DIEString Implementation
+//===----------------------------------------------------------------------===//
+
+/// EmitValue - Emit string value.
+///
+void DIEString::EmitValue(AsmPrinter *AP, dwarf::Form Form) const {
+ Access->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);
+}
+
+#ifndef NDEBUG
+void DIEString::print(raw_ostream &O) const {
+ O << "String: " << Str << "\tSymbol: ";
+ Access->print(O);
+}
+#endif
+
//===----------------------------------------------------------------------===//
// DIEEntry Implementation
//===----------------------------------------------------------------------===//
/// EmitValue - Emit debug information entry offset.
///
-void DIEEntry::EmitValue(AsmPrinter *AP, unsigned Form) const {
+void DIEEntry::EmitValue(AsmPrinter *AP, dwarf::Form Form) const {
AP->EmitInt32(Entry->getOffset());
}
+unsigned DIEEntry::getRefAddrSize(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
+ // references have the same size as an address on the target system.
+ const DwarfDebug *DD = AP->getDwarfDebug();
+ assert(DD && "Expected Dwarf Debug info to be available");
+ if (DD->getDwarfVersion() == 2)
+ return AP->getDataLayout().getPointerSize();
+ return sizeof(int32_t);
+}
+
#ifndef NDEBUG
void DIEEntry::print(raw_ostream &O) const {
O << format("Die: 0x%lx", (long)(intptr_t)Entry);
}
#endif
+//===----------------------------------------------------------------------===//
+// DIETypeSignature Implementation
+//===----------------------------------------------------------------------===//
+void DIETypeSignature::EmitValue(AsmPrinter *Asm, dwarf::Form Form) const {
+ assert(Form == dwarf::DW_FORM_ref_sig8);
+ Asm->OutStreamer.EmitIntValue(Unit.getTypeSignature(), 8);
+}
+
+#ifndef NDEBUG
+void DIETypeSignature::print(raw_ostream &O) const {
+ O << format("Type Unit: 0x%lx", Unit.getTypeSignature());
+}
+
+void DIETypeSignature::dump() const { print(dbgs()); }
+#endif
+
//===----------------------------------------------------------------------===//
// DIEBlock Implementation
//===----------------------------------------------------------------------===//
/// EmitValue - Emit block data.
///
-void DIEBlock::EmitValue(AsmPrinter *Asm, unsigned Form) const {
+void DIEBlock::EmitValue(AsmPrinter *Asm, dwarf::Form Form) const {
switch (Form) {
default: llvm_unreachable("Improper form for block");
case dwarf::DW_FORM_block1: Asm->EmitInt8(Size); break;
/// SizeOf - Determine size of block data in bytes.
///
-unsigned DIEBlock::SizeOf(AsmPrinter *AP, unsigned Form) const {
+unsigned DIEBlock::SizeOf(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);
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