//===----------------------------------------------------------------------===//
#include "llvm/Support/GraphWriter.h"
-#include "llvm/System/Path.h"
-#include "llvm/System/Program.h"
#include "llvm/Config/config.h"
+#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/FileSystem.h"
+#include "llvm/Support/Program.h"
using namespace llvm;
+static cl::opt<bool> ViewBackground("view-background", cl::Hidden,
+ cl::desc("Execute graph viewer in the background. Creates tmp file litter."));
+
std::string llvm::DOT::EscapeString(const std::string &Label) {
std::string Str(Label);
for (unsigned i = 0; i != Str.length(); ++i)
return Str;
}
+/// \brief Get a color string for this node number. Simply round-robin selects
+/// from a reasonable number of colors.
+StringRef llvm::DOT::getColorString(unsigned ColorNumber) {
+ static const int NumColors = 20;
+ static const char* Colors[NumColors] = {
+ "aaaaaa", "aa0000", "00aa00", "aa5500", "0055ff", "aa00aa", "00aaaa",
+ "555555", "ff5555", "55ff55", "ffff55", "5555ff", "ff55ff", "55ffff",
+ "ffaaaa", "aaffaa", "ffffaa", "aaaaff", "ffaaff", "aaffff"};
+ return Colors[ColorNumber % NumColors];
+}
+
+std::string llvm::createGraphFilename(const Twine &Name, int &FD) {
+ FD = -1;
+ SmallString<128> Filename;
+ std::error_code EC = sys::fs::createTemporaryFile(Name, "dot", FD, Filename);
+ if (EC) {
+ errs() << "Error: " << EC.message() << "\n";
+ return "";
+ }
+
+ errs() << "Writing '" << Filename << "'... ";
+ return Filename.str();
+}
+
+// Execute the graph viewer. Return true if there were errors.
+static bool ExecGraphViewer(StringRef ExecPath, std::vector<const char *> &args,
+ StringRef Filename, bool wait,
+ std::string &ErrMsg) {
+ assert(args.back() == nullptr);
+ if (wait) {
+ if (sys::ExecuteAndWait(ExecPath, args.data(), nullptr, nullptr, 0, 0,
+ &ErrMsg)) {
+ errs() << "Error: " << ErrMsg << "\n";
+ return true;
+ }
+ sys::fs::remove(Filename);
+ errs() << " done. \n";
+ } else {
+ sys::ExecuteNoWait(ExecPath, args.data(), nullptr, nullptr, 0, &ErrMsg);
+ errs() << "Remember to erase graph file: " << Filename << "\n";
+ }
+ return false;
+}
+
+namespace {
+struct GraphSession {
+ std::string LogBuffer;
+ bool TryFindProgram(StringRef Names, std::string &ProgramPath) {
+ raw_string_ostream Log(LogBuffer);
+ SmallVector<StringRef, 8> parts;
+ Names.split(parts, '|');
+ for (auto Name : parts) {
+ if (ErrorOr<std::string> P = sys::findProgramByName(Name)) {
+ ProgramPath = *P;
+ return true;
+ }
+ Log << " Tried '" << Name << "'\n";
+ }
+ return false;
+ }
+};
+} // namespace
+static const char *getProgramName(GraphProgram::Name program) {
+ switch (program) {
+ case GraphProgram::DOT:
+ return "dot";
+ case GraphProgram::FDP:
+ return "fdp";
+ case GraphProgram::NEATO:
+ return "neato";
+ case GraphProgram::TWOPI:
+ return "twopi";
+ case GraphProgram::CIRCO:
+ return "circo";
+ }
+ llvm_unreachable("bad kind");
+}
-void llvm::DisplayGraph(const sys::Path &Filename, bool wait,
+bool llvm::DisplayGraph(StringRef FilenameRef, bool wait,
GraphProgram::Name program) {
+ std::string Filename = FilenameRef;
std::string ErrMsg;
-#if HAVE_GRAPHVIZ
- sys::Path Graphviz(LLVM_PATH_GRAPHVIZ);
-
- std::vector<const char*> args;
- args.push_back(Graphviz.c_str());
- args.push_back(Filename.c_str());
- args.push_back(0);
-
- errs() << "Running 'Graphviz' program... ";
- if (sys::Program::ExecuteAndWait(Graphviz, &args[0],0,0,0,0,&ErrMsg))
- errs() << "Error viewing graph " << Filename.str() << ": " << ErrMsg
- << "\n";
- else
- Filename.eraseFromDisk();
-
-#elif (HAVE_GV && (HAVE_DOT || HAVE_FDP || HAVE_NEATO || \
- HAVE_TWOPI || HAVE_CIRCO))
- sys::Path PSFilename = Filename;
- PSFilename.appendSuffix("ps");
-
- sys::Path prog;
-
- // Set default grapher
-#if HAVE_CIRCO
- prog = sys::Path(LLVM_PATH_CIRCO);
-#endif
-#if HAVE_TWOPI
- prog = sys::Path(LLVM_PATH_TWOPI);
-#endif
-#if HAVE_NEATO
- prog = sys::Path(LLVM_PATH_NEATO);
-#endif
-#if HAVE_FDP
- prog = sys::Path(LLVM_PATH_FDP);
-#endif
-#if HAVE_DOT
- prog = sys::Path(LLVM_PATH_DOT);
-#endif
+ std::string ViewerPath;
+ GraphSession S;
- // Find which program the user wants
-#if HAVE_DOT
- if (program == GraphProgram::DOT)
- prog = sys::Path(LLVM_PATH_DOT);
-#endif
-#if (HAVE_FDP)
- if (program == GraphProgram::FDP)
- prog = sys::Path(LLVM_PATH_FDP);
-#endif
-#if (HAVE_NEATO)
- if (program == GraphProgram::NEATO)
- prog = sys::Path(LLVM_PATH_NEATO);
+#ifdef __APPLE__
+ wait &= !ViewBackground;
+ if (S.TryFindProgram("open", ViewerPath)) {
+ std::vector<const char *> args;
+ args.push_back(ViewerPath.c_str());
+ if (wait)
+ args.push_back("-W");
+ args.push_back(Filename.c_str());
+ args.push_back(nullptr);
+ errs() << "Trying 'open' program... ";
+ if (!ExecGraphViewer(ViewerPath, args, Filename, wait, ErrMsg))
+ return false;
+ }
#endif
-#if (HAVE_TWOPI)
- if (program == GraphProgram::TWOPI)
- prog = sys::Path(LLVM_PATH_TWOPI);
+ if (S.TryFindProgram("xdg-open", ViewerPath)) {
+ std::vector<const char *> args;
+ args.push_back(ViewerPath.c_str());
+ args.push_back(Filename.c_str());
+ args.push_back(nullptr);
+ errs() << "Trying 'xdg-open' program... ";
+ if (!ExecGraphViewer(ViewerPath, args, Filename, wait, ErrMsg))
+ return false;
+ }
+
+ // 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 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 (HAVE_CIRCO)
- if (program == GraphProgram::CIRCO)
- prog = sys::Path(LLVM_PATH_CIRCO);
+ if (!Viewer && S.TryFindProgram("gv", ViewerPath))
+ Viewer = VK_Ghostview;
+ if (!Viewer && S.TryFindProgram("xdg-open", ViewerPath))
+ Viewer = VK_XDGOpen;
+#ifdef LLVM_ON_WIN32
+ if (!Viewer && S.TryFindProgram("cmd", ViewerPath)) {
+ Viewer = VK_CmdStart;
+ }
#endif
- std::vector<const char*> args;
- args.push_back(prog.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(0);
-
- errs() << "Running '" << prog.str() << "' program... ";
-
- if (sys::Program::ExecuteAndWait(prog, &args[0], 0, 0, 0, 0, &ErrMsg)) {
- errs() << "Error viewing graph " << Filename.str() << ": '"
- << ErrMsg << "\n";
- } else {
- errs() << " done. \n";
+ // 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<const char *> args;
+ args.push_back(GeneratorPath.c_str());
+ 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.c_str());
+ args.push_back("-o");
+ args.push_back(OutputFilename.c_str());
+ args.push_back(nullptr);
+
+ 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;
- sys::Path gv(LLVM_PATH_GV);
args.clear();
- args.push_back(gv.c_str());
- args.push_back(PSFilename.c_str());
- args.push_back("--spartan");
- args.push_back(0);
-
- ErrMsg.clear();
- if (wait) {
- if (sys::Program::ExecuteAndWait(gv, &args[0],0,0,0,0,&ErrMsg))
- errs() << "Error viewing graph: " << ErrMsg << "\n";
- Filename.eraseFromDisk();
- PSFilename.eraseFromDisk();
- }
- else {
- sys::Program::ExecuteNoWait(gv, &args[0],0,0,0,&ErrMsg);
- errs() << "Remember to erase graph files: " << Filename.str() << " "
- << PSFilename.str() << "\n";
+ args.push_back(ViewerPath.c_str());
+ switch (Viewer) {
+ case VK_OSXOpen:
+ args.push_back("-W");
+ args.push_back(OutputFilename.c_str());
+ break;
+ case VK_XDGOpen:
+ wait = false;
+ args.push_back(OutputFilename.c_str());
+ break;
+ case VK_Ghostview:
+ args.push_back("--spartan");
+ args.push_back(OutputFilename.c_str());
+ break;
+ case VK_CmdStart:
+ args.push_back("/S");
+ args.push_back("/C");
+ StartArg =
+ (StringRef("start ") + (wait ? "/WAIT " : "") + OutputFilename).str();
+ args.push_back(StartArg.c_str());
+ break;
+ case VK_None:
+ llvm_unreachable("Invalid viewer");
}
+ args.push_back(nullptr);
+
+ ErrMsg.clear();
+ return ExecGraphViewer(ViewerPath, args, OutputFilename, wait, ErrMsg);
}
-#elif HAVE_DOTTY
- sys::Path dotty(LLVM_PATH_DOTTY);
-
- std::vector<const char*> args;
- args.push_back(dotty.c_str());
- args.push_back(Filename.c_str());
- args.push_back(0);
-
- errs() << "Running 'dotty' program... ";
- if (sys::Program::ExecuteAndWait(dotty, &args[0],0,0,0,0,&ErrMsg)) {
- errs() << "Error viewing graph " << Filename.str() << ": "
- << ErrMsg << "\n";
- } else {
+
+ // 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
-#if defined (__MINGW32__) || defined (_WINDOWS)
- return;
+#ifdef LLVM_ON_WIN32
+ wait = false;
#endif
- Filename.eraseFromDisk();
+ errs() << "Running 'dotty' program... ";
+ return ExecGraphViewer(ViewerPath, args, Filename, wait, ErrMsg);
}
-#endif
+
+ errs() << "Error: Couldn't find a usable graph viewer program:\n";
+ errs() << S.LogBuffer << "\n";
+ return true;
}
projects / oota-llvm.git / blobdiff