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-rw-r--r--contrib/llvm/lib/CodeGen/AsmPrinter/DIE.cpp137
1 files changed, 110 insertions, 27 deletions
diff --git a/contrib/llvm/lib/CodeGen/AsmPrinter/DIE.cpp b/contrib/llvm/lib/CodeGen/AsmPrinter/DIE.cpp
index 673867a..e39b374 100644
--- a/contrib/llvm/lib/CodeGen/AsmPrinter/DIE.cpp
+++ b/contrib/llvm/lib/CodeGen/AsmPrinter/DIE.cpp
@@ -12,6 +12,7 @@
//===----------------------------------------------------------------------===//
#include "DIE.h"
+#include "DwarfDebug.h"
#include "llvm/ADT/Twine.h"
#include "llvm/CodeGen/AsmPrinter.h"
#include "llvm/IR/DataLayout.h"
@@ -23,6 +24,7 @@
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/FormattedStream.h"
+#include "llvm/Support/MD5.h"
using namespace llvm;
//===----------------------------------------------------------------------===//
@@ -32,8 +34,10 @@ 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));
}
//===----------------------------------------------------------------------===//
@@ -43,7 +47,7 @@ void DIEAbbrevData::Profile(FoldingSetNodeID &ID) const {
/// 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.
@@ -55,11 +59,9 @@ void DIEAbbrev::Profile(FoldingSetNodeID &ID) const {
///
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.
@@ -67,12 +69,10 @@ void DIEAbbrev::Emit(AsmPrinter *AP) const {
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()));
}
@@ -114,14 +114,34 @@ DIE::~DIE() {
/// Climb up the parent chain to get the compile unit DIE to which this DIE
/// belongs.
-DIE *DIE::getCompileUnit() const {
- DIE *p = getParent();
+const DIE *DIE::getCompileUnit() const {
+ const DIE *Cu = getCompileUnitOrNull();
+ assert(Cu && "We should not have orphaned DIEs.");
+ return Cu;
+}
+
+/// Climb up the parent chain to get the compile unit DIE this DIE belongs
+/// to. Return NULL if DIE is not added to an owner yet.
+const DIE *DIE::getCompileUnitOrNull() const {
+ const DIE *p = this;
while (p) {
if (p->getTag() == dwarf::DW_TAG_compile_unit)
return p;
p = p->getParent();
}
- llvm_unreachable("We should not have orphaned DIEs.");
+ return NULL;
+}
+
+DIEValue *DIE::findAttribute(uint16_t Attribute) {
+ 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
@@ -178,7 +198,7 @@ void DIE::dump() {
void DIEValue::anchor() { }
#ifndef NDEBUG
-void DIEValue::dump() {
+void DIEValue::dump() const {
print(dbgs());
}
#endif
@@ -189,14 +209,14 @@ void DIEValue::dump() {
/// 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.EmitRawText("");
return;
case dwarf::DW_FORM_flag: // Fall thru
case dwarf::DW_FORM_ref1: // Fall thru
@@ -221,7 +241,7 @@ void DIEInteger::EmitValue(AsmPrinter *Asm, unsigned Form) const {
/// 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
@@ -244,25 +264,54 @@ unsigned DIEInteger::SizeOf(AsmPrinter *AP, unsigned Form) const {
}
#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));
+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;
@@ -270,7 +319,7 @@ unsigned DIELabel::SizeOf(AsmPrinter *AP, unsigned Form) const {
}
#ifndef NDEBUG
-void DIELabel::print(raw_ostream &O) {
+void DIELabel::print(raw_ostream &O) const {
O << "Lbl: " << Label->getName();
}
#endif
@@ -281,36 +330,70 @@ void DIELabel::print(raw_ostream &O) {
/// 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();
}
#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.
+ if (AP->getDwarfDebug()->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
@@ -333,7 +416,7 @@ unsigned DIEBlock::ComputeSize(AsmPrinter *AP) {
/// 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;
@@ -349,7 +432,7 @@ void DIEBlock::EmitValue(AsmPrinter *Asm, unsigned Form) const {
/// 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);
@@ -360,7 +443,7 @@ unsigned DIEBlock::SizeOf(AsmPrinter *AP, unsigned Form) const {
}
#ifndef NDEBUG
-void DIEBlock::print(raw_ostream &O) {
+void DIEBlock::print(raw_ostream &O) const {
O << "Blk: ";
DIE::print(O, 5);
}
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