using namespace llvm;
using namespace dwarf;
-void DWARFDebugInfoEntryMinimal::dump(raw_ostream &OS,
- const DWARFCompileUnit *cu,
+void DWARFDebugInfoEntryMinimal::dump(raw_ostream &OS, const DWARFUnit *u,
unsigned recurseDepth,
unsigned indent) const {
- DataExtractor debug_info_data = cu->getDebugInfoExtractor();
+ DataExtractor debug_info_data = u->getDebugInfoExtractor();
uint32_t offset = Offset;
if (debug_info_data.isValidOffset(offset)) {
for (uint32_t i = 0; i != numAttributes; ++i) {
uint16_t attr = AbbrevDecl->getAttrByIndex(i);
uint16_t form = AbbrevDecl->getFormByIndex(i);
- dumpAttribute(OS, cu, &offset, attr, form, indent);
+ dumpAttribute(OS, u, &offset, attr, form, indent);
}
const DWARFDebugInfoEntryMinimal *child = getFirstChild();
if (recurseDepth > 0 && child) {
while (child) {
- child->dump(OS, cu, recurseDepth-1, indent+2);
+ child->dump(OS, u, recurseDepth-1, indent+2);
child = child->getSibling();
}
}
}
void DWARFDebugInfoEntryMinimal::dumpAttribute(raw_ostream &OS,
- const DWARFCompileUnit *cu,
- uint32_t* offset_ptr,
- uint16_t attr,
- uint16_t form,
+ const DWARFUnit *u,
+ uint32_t *offset_ptr,
+ uint16_t attr, uint16_t form,
unsigned indent) const {
- OS << format("0x%8.8x: ", *offset_ptr);
+ OS << " ";
OS.indent(indent+2);
const char *attrString = AttributeString(attr);
if (attrString)
DWARFFormValue formValue(form);
- if (!formValue.extractValue(cu->getDebugInfoExtractor(), offset_ptr, cu))
+ if (!formValue.extractValue(u->getDebugInfoExtractor(), offset_ptr, u))
return;
OS << "\t(";
- formValue.dump(OS, cu);
+ formValue.dump(OS, u);
OS << ")\n";
}
-bool DWARFDebugInfoEntryMinimal::extractFast(const DWARFCompileUnit *CU,
+bool DWARFDebugInfoEntryMinimal::extractFast(const DWARFUnit *U,
const uint8_t *FixedFormSizes,
uint32_t *OffsetPtr) {
Offset = *OffsetPtr;
- DataExtractor DebugInfoData = CU->getDebugInfoExtractor();
+ DataExtractor DebugInfoData = U->getDebugInfoExtractor();
uint64_t AbbrCode = DebugInfoData.getULEB128(OffsetPtr);
if (0 == AbbrCode) {
// NULL debug tag entry.
AbbrevDecl = NULL;
return true;
}
- AbbrevDecl = CU->getAbbreviations()->getAbbreviationDeclaration(AbbrCode);
+ AbbrevDecl = U->getAbbreviations()->getAbbreviationDeclaration(AbbrCode);
assert(AbbrevDecl);
assert(FixedFormSizes); // For best performance this should be specified!
if (FixedFormSize)
*OffsetPtr += FixedFormSize;
else if (!DWARFFormValue::skipValue(Form, DebugInfoData, OffsetPtr,
- CU)) {
+ U)) {
// Restore the original offset.
*OffsetPtr = Offset;
return false;
return true;
}
-bool
-DWARFDebugInfoEntryMinimal::extract(const DWARFCompileUnit *CU,
- uint32_t *OffsetPtr) {
- DataExtractor DebugInfoData = CU->getDebugInfoExtractor();
- const uint32_t CUEndOffset = CU->getNextCompileUnitOffset();
+bool DWARFDebugInfoEntryMinimal::extract(const DWARFUnit *U,
+ uint32_t *OffsetPtr) {
+ DataExtractor DebugInfoData = U->getDebugInfoExtractor();
+ const uint32_t UEndOffset = U->getNextUnitOffset();
Offset = *OffsetPtr;
- if ((Offset >= CUEndOffset) || !DebugInfoData.isValidOffset(Offset))
+ if ((Offset >= UEndOffset) || !DebugInfoData.isValidOffset(Offset))
return false;
uint64_t AbbrCode = DebugInfoData.getULEB128(OffsetPtr);
if (0 == AbbrCode) {
AbbrevDecl = NULL;
return true;
}
- AbbrevDecl = CU->getAbbreviations()->getAbbreviationDeclaration(AbbrCode);
+ AbbrevDecl = U->getAbbreviations()->getAbbreviationDeclaration(AbbrCode);
if (0 == AbbrevDecl) {
// Restore the original offset.
*OffsetPtr = Offset;
}
bool IsCompileUnitTag = (AbbrevDecl->getTag() == DW_TAG_compile_unit);
if (IsCompileUnitTag)
- const_cast<DWARFCompileUnit*>(CU)->setBaseAddress(0);
+ const_cast<DWARFUnit *>(U)->setBaseAddress(0);
// Skip all data in the .debug_info for the attributes
for (uint32_t i = 0, n = AbbrevDecl->getNumAttributes(); i < n; ++i) {
if (IsCompileUnitTag &&
((Attr == DW_AT_entry_pc) || (Attr == DW_AT_low_pc))) {
DWARFFormValue FormValue(Form);
- if (FormValue.extractValue(DebugInfoData, OffsetPtr, CU)) {
- if (Attr == DW_AT_low_pc || Attr == DW_AT_entry_pc)
- const_cast<DWARFCompileUnit*>(CU)
- ->setBaseAddress(FormValue.getUnsigned());
+ if (FormValue.extractValue(DebugInfoData, OffsetPtr, U)) {
+ if (Attr == DW_AT_low_pc || Attr == DW_AT_entry_pc) {
+ Optional<uint64_t> BaseAddr = FormValue.getAsAddress(U);
+ if (BaseAddr.hasValue())
+ const_cast<DWARFUnit *>(U)->setBaseAddress(BaseAddr.getValue());
+ }
}
- } else if (!DWARFFormValue::skipValue(Form, DebugInfoData, OffsetPtr,
- CU)) {
+ } else if (!DWARFFormValue::skipValue(Form, DebugInfoData, OffsetPtr, U)) {
// Restore the original offset.
*OffsetPtr = Offset;
return false;
Tag == DW_TAG_inlined_subroutine;
}
-uint32_t
-DWARFDebugInfoEntryMinimal::getAttributeValue(const DWARFCompileUnit *cu,
- const uint16_t attr,
- DWARFFormValue &form_value,
- uint32_t *end_attr_offset_ptr)
- const {
- if (AbbrevDecl) {
- uint32_t attr_idx = AbbrevDecl->findAttributeIndex(attr);
-
- if (attr_idx != -1U) {
- uint32_t offset = getOffset();
+bool DWARFDebugInfoEntryMinimal::getAttributeValue(
+ const DWARFUnit *U, const uint16_t Attr, DWARFFormValue &FormValue) const {
+ if (!AbbrevDecl)
+ return false;
- DataExtractor debug_info_data = cu->getDebugInfoExtractor();
+ uint32_t AttrIdx = AbbrevDecl->findAttributeIndex(Attr);
+ if (AttrIdx == -1U)
+ return false;
- // Skip the abbreviation code so we are at the data for the attributes
- debug_info_data.getULEB128(&offset);
+ DataExtractor DebugInfoData = U->getDebugInfoExtractor();
+ uint32_t DebugInfoOffset = getOffset();
- uint32_t idx = 0;
- while (idx < attr_idx)
- DWARFFormValue::skipValue(AbbrevDecl->getFormByIndex(idx++),
- debug_info_data, &offset, cu);
+ // Skip the abbreviation code so we are at the data for the attributes
+ DebugInfoData.getULEB128(&DebugInfoOffset);
- const uint32_t attr_offset = offset;
- form_value = DWARFFormValue(AbbrevDecl->getFormByIndex(idx));
- if (form_value.extractValue(debug_info_data, &offset, cu)) {
- if (end_attr_offset_ptr)
- *end_attr_offset_ptr = offset;
- return attr_offset;
- }
- }
+ // Skip preceding attribute values.
+ for (uint32_t i = 0; i < AttrIdx; ++i) {
+ DWARFFormValue::skipValue(AbbrevDecl->getFormByIndex(i),
+ DebugInfoData, &DebugInfoOffset, U);
}
- return 0;
+ FormValue = DWARFFormValue(AbbrevDecl->getFormByIndex(AttrIdx));
+ return FormValue.extractValue(DebugInfoData, &DebugInfoOffset, U);
}
-const char*
-DWARFDebugInfoEntryMinimal::getAttributeValueAsString(
- const DWARFCompileUnit* cu,
- const uint16_t attr,
- const char* fail_value)
- const {
- DWARFFormValue form_value;
- if (getAttributeValue(cu, attr, form_value)) {
- DataExtractor stringExtractor(cu->getStringSection(), false, 0);
- return form_value.getAsCString(&stringExtractor);
- }
- return fail_value;
+const char *DWARFDebugInfoEntryMinimal::getAttributeValueAsString(
+ const DWARFUnit *U, const uint16_t Attr, const char *FailValue) const {
+ DWARFFormValue FormValue;
+ if (!getAttributeValue(U, Attr, FormValue))
+ return FailValue;
+ Optional<const char *> Result = FormValue.getAsCString(U);
+ return Result.hasValue() ? Result.getValue() : FailValue;
+}
+
+uint64_t DWARFDebugInfoEntryMinimal::getAttributeValueAsAddress(
+ const DWARFUnit *U, const uint16_t Attr, uint64_t FailValue) const {
+ DWARFFormValue FormValue;
+ if (!getAttributeValue(U, Attr, FormValue))
+ return FailValue;
+ Optional<uint64_t> Result = FormValue.getAsAddress(U);
+ return Result.hasValue() ? Result.getValue() : FailValue;
}
-uint64_t
-DWARFDebugInfoEntryMinimal::getAttributeValueAsUnsigned(
- const DWARFCompileUnit* cu,
- const uint16_t attr,
- uint64_t fail_value) const {
- DWARFFormValue form_value;
- if (getAttributeValue(cu, attr, form_value))
- return form_value.getUnsigned();
- return fail_value;
+uint64_t DWARFDebugInfoEntryMinimal::getAttributeValueAsUnsignedConstant(
+ const DWARFUnit *U, const uint16_t Attr, uint64_t FailValue) const {
+ DWARFFormValue FormValue;
+ if (!getAttributeValue(U, Attr, FormValue))
+ return FailValue;
+ Optional<uint64_t> Result = FormValue.getAsUnsignedConstant();
+ return Result.hasValue() ? Result.getValue() : FailValue;
}
-int64_t
-DWARFDebugInfoEntryMinimal::getAttributeValueAsSigned(
- const DWARFCompileUnit* cu,
- const uint16_t attr,
- int64_t fail_value) const {
- DWARFFormValue form_value;
- if (getAttributeValue(cu, attr, form_value))
- return form_value.getSigned();
- return fail_value;
+uint64_t DWARFDebugInfoEntryMinimal::getAttributeValueAsReference(
+ const DWARFUnit *U, const uint16_t Attr, uint64_t FailValue) const {
+ DWARFFormValue FormValue;
+ if (!getAttributeValue(U, Attr, FormValue))
+ return FailValue;
+ Optional<uint64_t> Result = FormValue.getAsReference(U);
+ return Result.hasValue() ? Result.getValue() : FailValue;
}
-uint64_t
-DWARFDebugInfoEntryMinimal::getAttributeValueAsReference(
- const DWARFCompileUnit* cu,
- const uint16_t attr,
- uint64_t fail_value)
- const {
- DWARFFormValue form_value;
- if (getAttributeValue(cu, attr, form_value))
- return form_value.getReference(cu);
- return fail_value;
+uint64_t DWARFDebugInfoEntryMinimal::getAttributeValueAsSectionOffset(
+ const DWARFUnit *U, const uint16_t Attr, uint64_t FailValue) const {
+ DWARFFormValue FormValue;
+ if (!getAttributeValue(U, Attr, FormValue))
+ return FailValue;
+ Optional<uint64_t> Result = FormValue.getAsSectionOffset();
+ return Result.hasValue() ? Result.getValue() : FailValue;
}
-bool DWARFDebugInfoEntryMinimal::getLowAndHighPC(const DWARFCompileUnit *CU,
+bool DWARFDebugInfoEntryMinimal::getLowAndHighPC(const DWARFUnit *U,
uint64_t &LowPC,
uint64_t &HighPC) const {
HighPC = -1ULL;
- LowPC = getAttributeValueAsUnsigned(CU, DW_AT_low_pc, -1ULL);
+ LowPC = getAttributeValueAsAddress(U, DW_AT_low_pc, -1ULL);
+ // FIXME: Check if HighPC is of class constant (it has different semantics).
if (LowPC != -1ULL)
- HighPC = getAttributeValueAsUnsigned(CU, DW_AT_high_pc, -1ULL);
+ HighPC = getAttributeValueAsAddress(U, DW_AT_high_pc, -1ULL);
return (HighPC != -1ULL);
}
-void
-DWARFDebugInfoEntryMinimal::buildAddressRangeTable(const DWARFCompileUnit *CU,
- DWARFDebugAranges *DebugAranges)
- const {
+void DWARFDebugInfoEntryMinimal::buildAddressRangeTable(
+ const DWARFUnit *U, DWARFDebugAranges *DebugAranges,
+ uint32_t UOffsetInAranges) const {
if (AbbrevDecl) {
if (isSubprogramDIE()) {
uint64_t LowPC, HighPC;
- if (getLowAndHighPC(CU, LowPC, HighPC)) {
- DebugAranges->appendRange(CU->getOffset(), LowPC, HighPC);
- }
+ if (getLowAndHighPC(U, LowPC, HighPC))
+ DebugAranges->appendRange(UOffsetInAranges, LowPC, HighPC);
// FIXME: try to append ranges from .debug_ranges section.
}
- const DWARFDebugInfoEntryMinimal *child = getFirstChild();
- while (child) {
- child->buildAddressRangeTable(CU, DebugAranges);
- child = child->getSibling();
+ const DWARFDebugInfoEntryMinimal *Child = getFirstChild();
+ while (Child) {
+ Child->buildAddressRangeTable(U, DebugAranges, UOffsetInAranges);
+ Child = Child->getSibling();
}
}
}
-bool
-DWARFDebugInfoEntryMinimal::addressRangeContainsAddress(
- const DWARFCompileUnit *CU,
- const uint64_t Address)
- const {
+bool DWARFDebugInfoEntryMinimal::addressRangeContainsAddress(
+ const DWARFUnit *U, const uint64_t Address) const {
if (isNULL())
return false;
uint64_t LowPC, HighPC;
- if (getLowAndHighPC(CU, LowPC, HighPC))
+ if (getLowAndHighPC(U, LowPC, HighPC))
return (LowPC <= Address && Address <= HighPC);
// Try to get address ranges from .debug_ranges section.
- uint32_t RangesOffset = getAttributeValueAsReference(CU, DW_AT_ranges, -1U);
+ uint32_t RangesOffset =
+ getAttributeValueAsSectionOffset(U, DW_AT_ranges, -1U);
if (RangesOffset != -1U) {
DWARFDebugRangeList RangeList;
- if (CU->extractRangeList(RangesOffset, RangeList))
- return RangeList.containsAddress(CU->getBaseAddress(), Address);
+ if (U->extractRangeList(RangesOffset, RangeList))
+ return RangeList.containsAddress(U->getBaseAddress(), Address);
}
return false;
}
-const char*
-DWARFDebugInfoEntryMinimal::getSubroutineName(const DWARFCompileUnit *CU)
- const {
+const char *
+DWARFDebugInfoEntryMinimal::getSubroutineName(const DWARFUnit *U) const {
if (!isSubroutineDIE())
return 0;
// Try to get mangled name if possible.
if (const char *name =
- getAttributeValueAsString(CU, DW_AT_MIPS_linkage_name, 0))
+ getAttributeValueAsString(U, DW_AT_MIPS_linkage_name, 0))
return name;
- if (const char *name = getAttributeValueAsString(CU, DW_AT_linkage_name, 0))
+ if (const char *name = getAttributeValueAsString(U, DW_AT_linkage_name, 0))
return name;
- if (const char *name = getAttributeValueAsString(CU, DW_AT_name, 0))
+ if (const char *name = getAttributeValueAsString(U, DW_AT_name, 0))
return name;
// Try to get name from specification DIE.
uint32_t spec_ref =
- getAttributeValueAsReference(CU, DW_AT_specification, -1U);
+ getAttributeValueAsReference(U, DW_AT_specification, -1U);
if (spec_ref != -1U) {
DWARFDebugInfoEntryMinimal spec_die;
- if (spec_die.extract(CU, &spec_ref)) {
- if (const char *name = spec_die.getSubroutineName(CU))
+ if (spec_die.extract(U, &spec_ref)) {
+ if (const char *name = spec_die.getSubroutineName(U))
return name;
}
}
// Try to get name from abstract origin DIE.
uint32_t abs_origin_ref =
- getAttributeValueAsReference(CU, DW_AT_abstract_origin, -1U);
+ getAttributeValueAsReference(U, DW_AT_abstract_origin, -1U);
if (abs_origin_ref != -1U) {
DWARFDebugInfoEntryMinimal abs_origin_die;
- if (abs_origin_die.extract(CU, &abs_origin_ref)) {
- if (const char *name = abs_origin_die.getSubroutineName(CU))
+ if (abs_origin_die.extract(U, &abs_origin_ref)) {
+ if (const char *name = abs_origin_die.getSubroutineName(U))
return name;
}
}
return 0;
}
-void DWARFDebugInfoEntryMinimal::getCallerFrame(const DWARFCompileUnit *CU,
+void DWARFDebugInfoEntryMinimal::getCallerFrame(const DWARFUnit *U,
uint32_t &CallFile,
uint32_t &CallLine,
uint32_t &CallColumn) const {
- CallFile = getAttributeValueAsUnsigned(CU, DW_AT_call_file, 0);
- CallLine = getAttributeValueAsUnsigned(CU, DW_AT_call_line, 0);
- CallColumn = getAttributeValueAsUnsigned(CU, DW_AT_call_column, 0);
+ CallFile = getAttributeValueAsUnsignedConstant(U, DW_AT_call_file, 0);
+ CallLine = getAttributeValueAsUnsignedConstant(U, DW_AT_call_line, 0);
+ CallColumn = getAttributeValueAsUnsignedConstant(U, DW_AT_call_column, 0);
}
DWARFDebugInfoEntryInlinedChain
DWARFDebugInfoEntryMinimal::getInlinedChainForAddress(
- const DWARFCompileUnit *CU, const uint64_t Address) const {
+ const DWARFUnit *U, const uint64_t Address) const {
DWARFDebugInfoEntryInlinedChain InlinedChain;
- InlinedChain.CU = CU;
+ InlinedChain.U = U;
if (isNULL())
return InlinedChain;
for (const DWARFDebugInfoEntryMinimal *DIE = this; DIE; ) {
// Try to get child which also contains provided address.
const DWARFDebugInfoEntryMinimal *Child = DIE->getFirstChild();
while (Child) {
- if (Child->addressRangeContainsAddress(CU, Address)) {
+ if (Child->addressRangeContainsAddress(U, Address)) {
// Assume there is only one such child.
break;
}
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