#include "llvm/DebugInfo/Symbolize/DIPrinter.h"
#include "llvm/DebugInfo/DIContext.h"
+#include "llvm/Support/LineIterator.h"
namespace llvm {
namespace symbolize {
static const char kDILineInfoBadString[] = "<invalid>";
static const char kBadString[] = "??";
-DIPrinter &DIPrinter::operator<<(const DILineInfo &Info) {
+// Prints source code around in the FileName the Line.
+void DIPrinter::printContext(std::string FileName, int64_t Line) {
+ if (PrintSourceContext <= 0)
+ return;
+
+ ErrorOr<std::unique_ptr<MemoryBuffer>> BufOrErr =
+ MemoryBuffer::getFile(FileName);
+ if (!BufOrErr)
+ return;
+
+ std::unique_ptr<MemoryBuffer> Buf = std::move(BufOrErr.get());
+ int64_t FirstLine = std::max(1l, Line - PrintSourceContext / 2);
+ int64_t LastLine = FirstLine + PrintSourceContext;
+ size_t MaxLineNumberWidth = std::ceil(std::log10(LastLine));
+
+ for (line_iterator I = line_iterator(*Buf, false);
+ !I.is_at_eof() && I.line_number() <= LastLine; ++I) {
+ int64_t L = I.line_number();
+ if (L >= FirstLine && L <= LastLine) {
+ OS << format_decimal(L, MaxLineNumberWidth);
+ if (L == Line)
+ OS << " >: ";
+ else
+ OS << " : ";
+ OS << *I << "\n";
+ }
+ }
+}
+
+void DIPrinter::print(const DILineInfo &Info, bool Inlined) {
if (PrintFunctionNames) {
std::string FunctionName = Info.FunctionName;
if (FunctionName == kDILineInfoBadString)
FunctionName = kBadString;
- OS << FunctionName << "\n";
+
+ StringRef Delimiter = (PrintPretty == true) ? " at " : "\n";
+ StringRef Prefix = (PrintPretty && Inlined) ? " (inlined by) " : "";
+ OS << Prefix << FunctionName << Delimiter;
}
std::string Filename = Info.FileName;
if (Filename == kDILineInfoBadString)
Filename = kBadString;
OS << Filename << ":" << Info.Line << ":" << Info.Column << "\n";
+ printContext(Filename, Info.Line);
+}
+
+DIPrinter &DIPrinter::operator<<(const DILineInfo &Info) {
+ print(Info, false);
return *this;
}
DIPrinter &DIPrinter::operator<<(const DIInliningInfo &Info) {
uint32_t FramesNum = Info.getNumberOfFrames();
- if (FramesNum == 0)
- return (*this << DILineInfo());
- for (uint32_t i = 0; i < FramesNum; i++) {
- *this << Info.getFrame(i);
+ if (FramesNum == 0) {
+ print(DILineInfo(), false);
+ return *this;
}
+ for (uint32_t i = 0; i < FramesNum; i++)
+ print(Info.getFrame(i), i > 0);
return *this;
}