-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();
-
- DataExtractor debug_info_data = cu->getDebugInfoExtractor();
-
- // Skip the abbreviation code so we are at the data for the attributes
- debug_info_data.getULEB128(&offset);
-
- uint32_t idx = 0;
- while (idx < attr_idx)
- DWARFFormValue::skipValue(AbbrevDecl->getFormByIndex(idx++),
- debug_info_data, &offset, cu);
-
- 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;
- }
- }
+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::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;
+}
+
+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::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;
+}
+
+uint64_t
+DWARFDebugInfoEntryMinimal::getRangesBaseAttribute(const DWARFUnit *U,
+ uint64_t FailValue) const {
+ uint64_t Result =
+ getAttributeValueAsSectionOffset(U, DW_AT_ranges_base, -1ULL);
+ if (Result != -1ULL)
+ return Result;
+ return getAttributeValueAsSectionOffset(U, DW_AT_GNU_ranges_base, FailValue);
+}
+
+bool DWARFDebugInfoEntryMinimal::getLowAndHighPC(const DWARFUnit *U,
+ uint64_t &LowPC,
+ uint64_t &HighPC) const {
+ LowPC = getAttributeValueAsAddress(U, DW_AT_low_pc, -1ULL);
+ if (LowPC == -1ULL)
+ return false;
+ HighPC = getAttributeValueAsAddress(U, DW_AT_high_pc, -1ULL);
+ if (HighPC == -1ULL) {
+ // Since DWARF4, DW_AT_high_pc may also be of class constant, in which case
+ // it represents function size.
+ HighPC = getAttributeValueAsUnsignedConstant(U, DW_AT_high_pc, -1ULL);
+ if (HighPC != -1ULL)
+ HighPC += LowPC;