DIInliningInfo ModuleInfo::symbolizeInlinedCode(
uint64_t ModuleOffset, const LLVMSymbolizer::Options &Opts) const {
DIInliningInfo InlinedContext;
if (DebugInfoContext) {
InlinedContext = DebugInfoContext->getInliningInfoForAddress(
ModuleOffset, getDILineInfoSpecifierFlags(Opts));
}
// Make sure there is at least one frame in context.
if (InlinedContext.getNumberOfFrames() == 0) {
InlinedContext.addFrame(DILineInfo());
}
// Override the function name in lower frame with name from symbol table.
if (Opts.PrintFunctions && Opts.UseSymbolTable) {
DIInliningInfo PatchedInlinedContext;
for (uint32_t i = 0, n = InlinedContext.getNumberOfFrames(); i < n; i++) {
DILineInfo LineInfo = InlinedContext.getFrame(i);
if (i == n - 1) {
std::string FunctionName;
uint64_t Start, Size;
if (getNameFromSymbolTable(SymbolRef::ST_Function, ModuleOffset,
FunctionName, Start, Size)) {
patchFunctionNameInDILineInfo(FunctionName, LineInfo);
}
}
PatchedInlinedContext.addFrame(LineInfo);
}
InlinedContext = PatchedInlinedContext;
}
return InlinedContext;
}
DIPrinter &DIPrinter::operator<<(const DIInliningInfo &Info) {
uint32_t FramesNum = Info.getNumberOfFrames();
if (FramesNum == 0) {
printName(DILineInfo(), false);
return *this;
}
for (uint32_t i = 0; i < FramesNum; i++)
printName(Info.getFrame(i), i > 0);
return *this;
}
std::string LLVMSymbolizer::symbolizeCode(const std::string &ModuleName,
uint64_t ModuleOffset) {
ModuleInfo *Info = getOrCreateModuleInfo(ModuleName);
if (Info == 0)
return printDILineInfo(DILineInfo());
if (Opts.PrintInlining) {
DIInliningInfo InlinedContext =
Info->symbolizeInlinedCode(ModuleOffset, Opts);
uint32_t FramesNum = InlinedContext.getNumberOfFrames();
assert(FramesNum > 0);
std::string Result;
for (uint32_t i = 0; i < FramesNum; i++) {
DILineInfo LineInfo = InlinedContext.getFrame(i);
Result += printDILineInfo(LineInfo);
}
return Result;
}
DILineInfo LineInfo = Info->symbolizeCode(ModuleOffset, Opts);
return printDILineInfo(LineInfo);
}
static void patchFunctionNameInDILineInfo(const std::string &NewFunctionName,
DILineInfo &LineInfo) {
std::string FileName = LineInfo.getFileName();
LineInfo = DILineInfo(StringRef(FileName), StringRef(NewFunctionName),
LineInfo.getLine(), LineInfo.getColumn());
}
