DILineInfoTable DWARFContext::getLineInfoForAddressRange(uint64_t Address,
uint64_t Size,
DILineInfoSpecifier Specifier) {
DILineInfoTable Lines;
DWARFCompileUnit *CU = getCompileUnitForAddress(Address);
if (!CU)
return Lines;
std::string FunctionName = "<invalid>";
if (Specifier.needs(DILineInfoSpecifier::FunctionName)) {
// The address may correspond to instruction in some inlined function,
// so we have to build the chain of inlined functions and take the
// name of the topmost function in it.
const DWARFDebugInfoEntryMinimal::InlinedChain &InlinedChain =
CU->getInlinedChainForAddress(Address);
if (InlinedChain.size() > 0) {
const DWARFDebugInfoEntryMinimal &TopFunctionDIE = InlinedChain[0];
if (const char *Name = TopFunctionDIE.getSubroutineName(CU))
FunctionName = Name;
}
}
StringRef FuncNameRef = StringRef(FunctionName);
// If the Specifier says we don't need FileLineInfo, just
// return the top-most function at the starting address.
if (!Specifier.needs(DILineInfoSpecifier::FileLineInfo)) {
Lines.push_back(std::make_pair(Address,
DILineInfo(StringRef("<invalid>"),
FuncNameRef, 0, 0)));
return Lines;
}
const DWARFLineTable *LineTable = getLineTableForCompileUnit(CU);
const bool NeedsAbsoluteFilePath =
Specifier.needs(DILineInfoSpecifier::AbsoluteFilePath);
// Get the index of row we're looking for in the line table.
std::vector<uint32_t> RowVector;
if (!LineTable->lookupAddressRange(Address, Size, RowVector))
return Lines;
uint32_t NumRows = RowVector.size();
for (uint32_t i = 0; i < NumRows; ++i) {
uint32_t RowIndex = RowVector[i];
// Take file number and line/column from the row.
const DWARFDebugLine::Row &Row = LineTable->Rows[RowIndex];
std::string FileName = "<invalid>";
getFileNameForCompileUnit(CU, LineTable, Row.File,
NeedsAbsoluteFilePath, FileName);
Lines.push_back(std::make_pair(Row.Address,
DILineInfo(StringRef(FileName),
FuncNameRef, Row.Line, Row.Column)));
}
return Lines;
}
DILineInfoTable DWARFContext::getLineInfoForAddressRange(uint64_t Address,
uint64_t Size,
DILineInfoSpecifier Specifier) {
DILineInfoTable Lines;
DWARFCompileUnit *CU = getCompileUnitForAddress(Address);
if (!CU)
return Lines;
std::string FunctionName = "<invalid>";
if (Specifier.needs(DILineInfoSpecifier::FunctionName)) {
getFunctionNameForAddress(CU, Address, FunctionName);
}
// If the Specifier says we don't need FileLineInfo, just
// return the top-most function at the starting address.
if (!Specifier.needs(DILineInfoSpecifier::FileLineInfo)) {
DILineInfo Result;
Result.FunctionName = FunctionName;
Lines.push_back(std::make_pair(Address, Result));
return Lines;
}
const DWARFLineTable *LineTable = getLineTableForCompileUnit(CU);
const bool NeedsAbsoluteFilePath =
Specifier.needs(DILineInfoSpecifier::AbsoluteFilePath);
// Get the index of row we're looking for in the line table.
std::vector<uint32_t> RowVector;
if (!LineTable->lookupAddressRange(Address, Size, RowVector))
return Lines;
for (uint32_t RowIndex : RowVector) {
// Take file number and line/column from the row.
const DWARFDebugLine::Row &Row = LineTable->Rows[RowIndex];
DILineInfo Result;
getFileNameForCompileUnit(CU, LineTable, Row.File, NeedsAbsoluteFilePath,
Result.FileName);
Result.FunctionName = FunctionName;
Result.Line = Row.Line;
Result.Column = Row.Column;
Lines.push_back(std::make_pair(Row.Address, Result));
}
return Lines;
}
DILineInfoTable
PDBContext::getLineInfoForAddressRange(uint64_t Address, uint64_t Size,
DILineInfoSpecifier Specifier) {
if (Size == 0)
return DILineInfoTable();
DILineInfoTable Table;
auto LineNumbers = Session->findLineNumbersByAddress(Address, Size);
if (!LineNumbers || LineNumbers->getChildCount() == 0)
return Table;
while (auto LineInfo = LineNumbers->getNext()) {
DILineInfo LineEntry =
getLineInfoForAddress(LineInfo->getVirtualAddress(), Specifier);
Table.push_back(std::make_pair(LineInfo->getVirtualAddress(), LineEntry));
}
return Table;
}
