bool llvm::DisplayGraph(StringRef FilenameRef, bool wait,
GraphProgram::Name program) {
std::string Filename = FilenameRef;
std::string ErrMsg;
std::string ViewerPath;
GraphSession S;
#ifdef __APPLE__
wait &= !ViewBackground;
if (S.TryFindProgram("open", ViewerPath)) {
std::vector<StringRef> args;
args.push_back(ViewerPath);
if (wait)
args.push_back("-W");
args.push_back(Filename);
errs() << "Trying 'open' program... ";
if (!ExecGraphViewer(ViewerPath, args, Filename, wait, ErrMsg))
return false;
}
#endif
if (S.TryFindProgram("xdg-open", ViewerPath)) {
std::vector<StringRef> args;
args.push_back(ViewerPath);
args.push_back(Filename);
errs() << "Trying 'xdg-open' program... ";
if (!ExecGraphViewer(ViewerPath, args, Filename, wait, ErrMsg))
return false;
}
// Graphviz
if (S.TryFindProgram("Graphviz", ViewerPath)) {
std::vector<StringRef> args;
args.push_back(ViewerPath);
args.push_back(Filename);
errs() << "Running 'Graphviz' program... ";
return ExecGraphViewer(ViewerPath, args, Filename, wait, ErrMsg);
}
// xdot
if (S.TryFindProgram("xdot|xdot.py", ViewerPath)) {
std::vector<StringRef> args;
args.push_back(ViewerPath);
args.push_back(Filename);
args.push_back("-f");
args.push_back(getProgramName(program));
errs() << "Running 'xdot.py' program... ";
return ExecGraphViewer(ViewerPath, args, Filename, wait, ErrMsg);
}
enum ViewerKind {
VK_None,
VK_OSXOpen,
VK_XDGOpen,
VK_Ghostview,
VK_CmdStart
};
ViewerKind Viewer = VK_None;
#ifdef __APPLE__
if (!Viewer && S.TryFindProgram("open", ViewerPath))
Viewer = VK_OSXOpen;
#endif
if (!Viewer && S.TryFindProgram("gv", ViewerPath))
Viewer = VK_Ghostview;
if (!Viewer && S.TryFindProgram("xdg-open", ViewerPath))
Viewer = VK_XDGOpen;
#ifdef _WIN32
if (!Viewer && S.TryFindProgram("cmd", ViewerPath)) {
Viewer = VK_CmdStart;
}
#endif
// PostScript or PDF graph generator + PostScript/PDF viewer
std::string GeneratorPath;
if (Viewer &&
(S.TryFindProgram(getProgramName(program), GeneratorPath) ||
S.TryFindProgram("dot|fdp|neato|twopi|circo", GeneratorPath))) {
std::string OutputFilename =
Filename + (Viewer == VK_CmdStart ? ".pdf" : ".ps");
std::vector<StringRef> args;
args.push_back(GeneratorPath);
if (Viewer == VK_CmdStart)
args.push_back("-Tpdf");
else
args.push_back("-Tps");
args.push_back("-Nfontname=Courier");
args.push_back("-Gsize=7.5,10");
args.push_back(Filename);
args.push_back("-o");
args.push_back(OutputFilename);
errs() << "Running '" << GeneratorPath << "' program... ";
if (ExecGraphViewer(GeneratorPath, args, Filename, true, ErrMsg))
return true;
// The lifetime of StartArg must include the call of ExecGraphViewer
// because the args are passed as vector of char*.
std::string StartArg;
args.clear();
args.push_back(ViewerPath);
switch (Viewer) {
case VK_OSXOpen:
args.push_back("-W");
args.push_back(OutputFilename);
break;
case VK_XDGOpen:
wait = false;
args.push_back(OutputFilename);
break;
case VK_Ghostview:
args.push_back("--spartan");
args.push_back(OutputFilename);
break;
case VK_CmdStart:
args.push_back("/S");
args.push_back("/C");
StartArg =
(StringRef("start ") + (wait ? "/WAIT " : "") + OutputFilename).str();
args.push_back(StartArg);
break;
case VK_None:
llvm_unreachable("Invalid viewer");
}
ErrMsg.clear();
return ExecGraphViewer(ViewerPath, args, OutputFilename, wait, ErrMsg);
}
// dotty
if (S.TryFindProgram("dotty", ViewerPath)) {
std::vector<StringRef> args;
args.push_back(ViewerPath);
args.push_back(Filename);
// Dotty spawns another app and doesn't wait until it returns
#ifdef _WIN32
wait = false;
#endif
errs() << "Running 'dotty' program... ";
return ExecGraphViewer(ViewerPath, args, Filename, wait, ErrMsg);
}
errs() << "Error: Couldn't find a usable graph viewer program:\n";
errs() << S.LogBuffer << "\n";
return true;
}
bool llvm::DisplayGraph(StringRef FilenameRef, bool wait,
GraphProgram::Name program) {
std::string Filename = FilenameRef;
wait &= !ViewBackground;
std::string ErrMsg;
std::string ViewerPath;
GraphSession S;
// Graphviz
if (S.TryFindProgram("Graphviz", ViewerPath)) {
std::vector<const char *> args;
args.push_back(ViewerPath.c_str());
args.push_back(Filename.c_str());
args.push_back(nullptr);
errs() << "Running 'Graphviz' program... ";
return ExecGraphViewer(ViewerPath, args, Filename, wait, ErrMsg);
}
// xdot
if (S.TryFindProgram("xdot|xdot.py", ViewerPath)) {
std::vector<const char *> args;
args.push_back(ViewerPath.c_str());
args.push_back(Filename.c_str());
args.push_back("-f");
args.push_back(getProgramName(program));
args.push_back(nullptr);
errs() << "Running 'xdot.py' program... ";
return ExecGraphViewer(ViewerPath, args, Filename, wait, ErrMsg);
}
enum PSViewerKind { PSV_None, PSV_OSXOpen, PSV_XDGOpen, PSV_Ghostview };
PSViewerKind PSViewer = PSV_None;
#ifdef __APPLE__
if (!PSViewer && S.TryFindProgram("open", ViewerPath))
PSViewer = PSV_OSXOpen;
#endif
if (!PSViewer && S.TryFindProgram("gv", ViewerPath))
PSViewer = PSV_Ghostview;
if (!PSViewer && S.TryFindProgram("xdg-open", ViewerPath))
PSViewer = PSV_XDGOpen;
// PostScript graph generator + PostScript viewer
std::string GeneratorPath;
if (PSViewer &&
(S.TryFindProgram(getProgramName(program), GeneratorPath) ||
S.TryFindProgram("dot|fdp|neato|twopi|circo", GeneratorPath))) {
std::string PSFilename = Filename + ".ps";
std::vector<const char *> args;
args.push_back(GeneratorPath.c_str());
args.push_back("-Tps");
args.push_back("-Nfontname=Courier");
args.push_back("-Gsize=7.5,10");
args.push_back(Filename.c_str());
args.push_back("-o");
args.push_back(PSFilename.c_str());
args.push_back(nullptr);
errs() << "Running '" << GeneratorPath << "' program... ";
if (ExecGraphViewer(GeneratorPath, args, Filename, wait, ErrMsg))
return true;
args.clear();
args.push_back(ViewerPath.c_str());
switch (PSViewer) {
case PSV_OSXOpen:
args.push_back("-W");
args.push_back(PSFilename.c_str());
break;
case PSV_XDGOpen:
wait = false;
args.push_back(PSFilename.c_str());
break;
case PSV_Ghostview:
args.push_back("--spartan");
args.push_back(PSFilename.c_str());
break;
case PSV_None:
llvm_unreachable("Invalid viewer");
}
args.push_back(nullptr);
ErrMsg.clear();
return ExecGraphViewer(ViewerPath, args, PSFilename, wait, ErrMsg);
}
// dotty
if (S.TryFindProgram("dotty", ViewerPath)) {
std::vector<const char *> args;
args.push_back(ViewerPath.c_str());
args.push_back(Filename.c_str());
args.push_back(nullptr);
// Dotty spawns another app and doesn't wait until it returns
#ifdef LLVM_ON_WIN32
wait = false;
#endif
errs() << "Running 'dotty' program... ";
return ExecGraphViewer(ViewerPath, args, Filename, wait, ErrMsg);
}
errs() << "Error: Couldn't find a usable graph viewer program:\n";
errs() << S.LogBuffer << "\n";
return true;
}