//===----------------------------------------------------------------------===//
//
// Data structures for DWARF info entries.
-//
+//
//===----------------------------------------------------------------------===//
#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/MC/MCAsmInfo.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCSymbol.h"
-#include "llvm/Target/TargetData.h"
-#include "llvm/Support/Allocator.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/FormattedStream.h"
+#include "llvm/Support/LEB128.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.
///
void DIEAbbrev::Emit(AsmPrinter *AP) const {
// Emit its Dwarf tag type.
- // FIXME: Doing work even in non-asm-verbose runs.
AP->EmitULEB128(Tag, dwarf::TagString(Tag));
// Emit whether it has children DIEs.
- // FIXME: Doing work even in non-asm-verbose runs.
AP->EmitULEB128(ChildrenFlag, dwarf::ChildrenString(ChildrenFlag));
// For each attribute description.
const DIEAbbrevData &AttrData = Data[i];
// Emit attribute type.
- // FIXME: Doing work even in non-asm-verbose runs.
AP->EmitULEB128(AttrData.getAttribute(),
dwarf::AttributeString(AttrData.getAttribute()));
// Emit form type.
- // FIXME: Doing work even in non-asm-verbose runs.
AP->EmitULEB128(AttrData.getForm(),
dwarf::FormEncodingString(AttrData.getForm()));
}
delete Children[i];
}
+/// Climb up the parent chain to get the unit DIE to which this DIE
+/// belongs.
+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 ||
+ p->getTag() == dwarf::DW_TAG_type_unit)
+ return p;
+ p = p->getParent();
+ }
+ 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
-void DIE::print(raw_ostream &O, unsigned IncIndent) {
- IndentCount += IncIndent;
+void DIE::print(raw_ostream &O, unsigned IndentCount) const {
const std::string Indent(IndentCount, ' ');
bool isBlock = Abbrev.getTag() == 0;
O << "Size: " << Size << "\n";
}
- const SmallVector<DIEAbbrevData, 8> &Data = Abbrev.getData();
+ const SmallVectorImpl<DIEAbbrevData> &Data = Abbrev.getData();
IndentCount += 2;
for (unsigned i = 0, N = Data.size(); i < N; ++i) {
IndentCount -= 2;
for (unsigned j = 0, M = Children.size(); j < M; ++j) {
- Children[j]->print(O, 4);
+ Children[j]->print(O, IndentCount+4);
}
if (!isBlock) O << "\n";
- IndentCount -= IncIndent;
}
void DIE::dump() {
void DIEValue::anchor() { }
#ifndef NDEBUG
-void DIEValue::dump() {
+void DIEValue::dump() const {
print(dbgs());
}
#endif
/// 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_data1: Size = 1; break;
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_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;
case dwarf::DW_FORM_udata: Asm->EmitULEB128(Integer); return;
case dwarf::DW_FORM_sdata: Asm->EmitSLEB128(Integer); return;
case dwarf::DW_FORM_addr:
- Size = Asm->getTargetData().getPointerSize(); break;
+ Size = Asm->getDataLayout().getPointerSize(); break;
default: llvm_unreachable("DIE Value form not supported yet");
}
- Asm->OutStreamer.EmitIntValue(Integer, Size, 0/*addrspace*/);
+ Asm->OutStreamer.EmitIntValue(Integer, Size);
}
/// 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_data1: return sizeof(int8_t);
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_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_udata: return MCAsmInfo::getULEB128Size(Integer);
- case dwarf::DW_FORM_sdata: return MCAsmInfo::getSLEB128Size(Integer);
- case dwarf::DW_FORM_addr: return AP->getTargetData().getPointerSize();
+ case dwarf::DW_FORM_GNU_str_index: return getULEB128Size(Integer);
+ case dwarf::DW_FORM_GNU_addr_index: return getULEB128Size(Integer);
+ 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();
default: llvm_unreachable("DIE Value form not supported yet");
}
}
#ifndef NDEBUG
-void DIEInteger::print(raw_ostream &O) {
+void DIEInteger::print(raw_ostream &O) const {
O << "Int: " << (int64_t)Integer << " 0x";
O.write_hex(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), 0/*AddrSpace*/);
+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;
- return AP->getTargetData().getPointerSize();
+ return AP->getDataLayout().getPointerSize();
}
#ifndef NDEBUG
-void DIELabel::print(raw_ostream &O) {
+void DIELabel::print(raw_ostream &O) const {
O << "Lbl: " << Label->getName();
}
#endif
/// 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->getTargetData().getPointerSize();
+ return AP->getDataLayout().getPointerSize();
}
#ifndef NDEBUG
-void DIEDelta::print(raw_ostream &O) {
+void DIEDelta::print(raw_ostream &O) const {
O << "Del: " << LabelHi->getName() << "-" << LabelLo->getName();
}
#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) {
+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
+
+//===----------------------------------------------------------------------===//
+// DIELoc Implementation
+//===----------------------------------------------------------------------===//
+
+/// ComputeSize - calculate the size of the location expression.
+///
+unsigned DIELoc::ComputeSize(AsmPrinter *AP) const {
+ if (Size)
+ return Size;
+
+ unsigned Sz = 0;
+ const SmallVectorImpl<DIEAbbrevData> &AbbrevData = Abbrev.getData();
+ for (unsigned i = 0, N = Values.size(); i < N; ++i)
+ Sz += Values[i]->SizeOf(AP, AbbrevData[i].getForm());
+
+ return Sz;
+}
+
+/// EmitValue - Emit location data.
+///
+void DIELoc::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;
+ case dwarf::DW_FORM_block2: Asm->EmitInt16(Size); break;
+ case dwarf::DW_FORM_block4: Asm->EmitInt32(Size); break;
+ case dwarf::DW_FORM_block:
+ case dwarf::DW_FORM_exprloc:
+ 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());
+}
+
+/// SizeOf - Determine size of location data in bytes.
+///
+unsigned DIELoc::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);
+ case dwarf::DW_FORM_block4: return Size + sizeof(int32_t);
+ case dwarf::DW_FORM_block:
+ case dwarf::DW_FORM_exprloc:
+ return Size + getULEB128Size(Size);
+ default: llvm_unreachable("Improper form for block");
+ }
+}
+
+#ifndef NDEBUG
+void DIELoc::print(raw_ostream &O) const {
+ O << "ExprLoc: ";
+ DIE::print(O, 5);
+}
+#endif
+
//===----------------------------------------------------------------------===//
// DIEBlock Implementation
//===----------------------------------------------------------------------===//
/// ComputeSize - calculate the size of the block.
///
-unsigned DIEBlock::ComputeSize(AsmPrinter *AP) {
- if (!Size) {
- const SmallVector<DIEAbbrevData, 8> &AbbrevData = Abbrev.getData();
- for (unsigned i = 0, N = Values.size(); i < N; ++i)
- Size += Values[i]->SizeOf(AP, AbbrevData[i].getForm());
- }
+unsigned DIEBlock::ComputeSize(AsmPrinter *AP) const {
+ if (Size)
+ return Size;
+
+ unsigned Sz = 0;
+ const SmallVectorImpl<DIEAbbrevData> &AbbrevData = Abbrev.getData();
+ for (unsigned i = 0, N = Values.size(); i < N; ++i)
+ Sz += Values[i]->SizeOf(AP, AbbrevData[i].getForm());
- return Size;
+ return Sz;
}
/// 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;
case dwarf::DW_FORM_block: Asm->EmitULEB128(Size); break;
}
- const SmallVector<DIEAbbrevData, 8> &AbbrevData = Abbrev.getData();
+ const SmallVectorImpl<DIEAbbrevData> &AbbrevData = Abbrev.getData();
for (unsigned i = 0, N = Values.size(); i < N; ++i)
Values[i]->EmitValue(Asm, AbbrevData[i].getForm());
}
/// 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);
case dwarf::DW_FORM_block4: return Size + sizeof(int32_t);
- case dwarf::DW_FORM_block: return Size + MCAsmInfo::getULEB128Size(Size);
+ case dwarf::DW_FORM_block: return Size + getULEB128Size(Size);
default: llvm_unreachable("Improper form for block");
}
}
#ifndef NDEBUG
-void DIEBlock::print(raw_ostream &O) {
+void DIEBlock::print(raw_ostream &O) const {
O << "Blk: ";
DIE::print(O, 5);
}
projects / oota-llvm.git / blobdiff