DebugInfo: Introduce the notion of "form classes"
Summary:
Use DWARF4 table of form classes to fetch attributes from DIE
in a more consistent way. This shouldn't change the functionality and
serves as a refactoring for upcoming change: DW_AT_high_pc has different
semantics depending on its form class.
Reviewers: dblaikie, echristo
Reviewed By: echristo
CC: echristo, llvm-commits
Differential Revision: http://llvm-reviews.chandlerc.com/D1961
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193553 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/DebugInfo/DWARFContext.cpp b/lib/DebugInfo/DWARFContext.cpp
index 9dc8f14..6056de7 100644
--- a/lib/DebugInfo/DWARFContext.cpp
+++ b/lib/DebugInfo/DWARFContext.cpp
@@ -102,8 +102,8 @@
DWARFCompileUnit *cu = getCompileUnitAtIndex(i);
savedAddressByteSize = cu->getAddressByteSize();
unsigned stmtOffset =
- cu->getCompileUnitDIE()->getAttributeValueAsUnsigned(cu, DW_AT_stmt_list,
- -1U);
+ cu->getCompileUnitDIE()->getAttributeValueAsSectionOffset(
+ cu, DW_AT_stmt_list, -1U);
if (stmtOffset != -1U) {
DataExtractor lineData(getLineSection().Data, isLittleEndian(),
savedAddressByteSize);
@@ -262,8 +262,8 @@
Line.reset(new DWARFDebugLine(&getLineSection().Relocs));
unsigned stmtOffset =
- cu->getCompileUnitDIE()->getAttributeValueAsUnsigned(cu, DW_AT_stmt_list,
- -1U);
+ cu->getCompileUnitDIE()->getAttributeValueAsSectionOffset(
+ cu, DW_AT_stmt_list, -1U);
if (stmtOffset == -1U)
return 0; // No line table for this compile unit.