diff options
Diffstat (limited to 'lib')
-rw-r--r-- | lib/DebugInfo/DWARFContext.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/DebugInfo/DWARFContext.cpp b/lib/DebugInfo/DWARFContext.cpp index 5fd4280ba7..4fc0b301be 100644 --- a/lib/DebugInfo/DWARFContext.cpp +++ b/lib/DebugInfo/DWARFContext.cpp @@ -147,13 +147,19 @@ DILineInfo DWARFContext::getLineInfoForAddress(uint64_t address) { uint32_t cuOffset = getDebugAranges()->offsetAtIndex(arangeIndex); // Retrieve the compile unit. DWARFCompileUnit *cu = getCompileUnitForOffset(cuOffset); + if (!cu) + return DILineInfo("<invalid>", 0, 0); // Get the line table for this compile unit. const DWARFDebugLine::LineTable *lineTable = getLineTableForCompileUnit(cu); + if (!lineTable) + return DILineInfo("<invalid>", 0, 0); // Get the index of the row we're looking for in the line table. uint64_t hiPC = cu->getCompileUnitDIE()->getAttributeValueAsUnsigned(cu, DW_AT_high_pc, -1ULL); uint32_t rowIndex = lineTable->lookupAddress(address, hiPC); + if (rowIndex == -1U) + return DILineInfo("<invalid>", 0, 0); // From here, contruct the DILineInfo. const DWARFDebugLine::Row &row = lineTable->Rows[rowIndex]; |