#include "llvm/Config/config.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/FileSystem.h"
-#include "llvm/Support/Path.h"
#include "llvm/Support/Program.h"
using namespace llvm;
std::string llvm::createGraphFilename(const Twine &Name, int &FD) {
FD = -1;
SmallString<128> Filename;
- error_code EC = sys::fs::createTemporaryFile(Name, "dot", FD, Filename);
+ std::error_code EC = sys::fs::createTemporaryFile(Name, "dot", FD, Filename);
if (EC) {
errs() << "Error: " << EC.message() << "\n";
return "";
return Filename.str();
}
-// Execute the graph viewer. Return true if successful.
-static bool LLVM_ATTRIBUTE_UNUSED
-ExecGraphViewer(StringRef ExecPath, std::vector<const char*> &args,
- StringRef Filename, bool wait, std::string &ErrMsg) {
+// 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[0],0,0,0,0,&ErrMsg)) {
+ if (sys::ExecuteAndWait(ExecPath, args.data(), nullptr, nullptr, 0, 0,
+ &ErrMsg)) {
errs() << "Error: " << ErrMsg << "\n";
- return false;
+ return true;
}
- bool Existed;
- sys::fs::remove(Filename, Existed);
+ 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";
}
- else {
- sys::ExecuteNoWait(ExecPath, &args[0],0,0,0,&ErrMsg);
- errs() << "Remember to erase graph file: " << Filename.str() << "\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;
}
- return true;
+};
+} // 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(StringRef FilenameRef, bool wait,
+bool llvm::DisplayGraph(StringRef FilenameRef, bool wait,
GraphProgram::Name program) {
std::string Filename = FilenameRef;
- wait &= !ViewBackground;
std::string ErrMsg;
-#if HAVE_GRAPHVIZ
- std::string 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);
+ std::string ViewerPath;
+ GraphSession S;
- errs() << "Running 'Graphviz' program... ";
- if (!ExecGraphViewer(Graphviz, args, Filename, wait, ErrMsg))
- return;
+#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 (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;
+ }
-#elif HAVE_XDOT_PY
- std::vector<const char*> args;
- args.push_back(LLVM_PATH_XDOT_PY);
- args.push_back(Filename.c_str());
+ // 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);
- switch (program) {
- case GraphProgram::DOT: args.push_back("-f"); args.push_back("dot"); break;
- case GraphProgram::FDP: args.push_back("-f"); args.push_back("fdp"); break;
- case GraphProgram::NEATO: args.push_back("-f"); args.push_back("neato");break;
- case GraphProgram::TWOPI: args.push_back("-f"); args.push_back("twopi");break;
- case GraphProgram::CIRCO: args.push_back("-f"); args.push_back("circo");break;
+ errs() << "Running 'Graphviz' program... ";
+ return ExecGraphViewer(ViewerPath, args, Filename, wait, ErrMsg);
}
- args.push_back(0);
+ // 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());
- errs() << "Running 'xdot.py' program... ";
- if (!ExecGraphViewer(LLVM_PATH_XDOT_PY, args, Filename, wait, ErrMsg))
- return;
+ args.push_back("-f");
+ args.push_back(getProgramName(program));
-#elif (HAVE_GV && (HAVE_DOT || HAVE_FDP || HAVE_NEATO || \
- HAVE_TWOPI || HAVE_CIRCO))
- std::string PSFilename = Filename + ".ps";
- std::string prog;
+ args.push_back(nullptr);
- // Set default grapher
-#if HAVE_CIRCO
- prog = LLVM_PATH_CIRCO;
-#endif
-#if HAVE_TWOPI
- prog = LLVM_PATH_TWOPI;
-#endif
-#if HAVE_NEATO
- prog = LLVM_PATH_NEATO;
-#endif
-#if HAVE_FDP
- prog = LLVM_PATH_FDP;
-#endif
-#if HAVE_DOT
- prog = LLVM_PATH_DOT;
-#endif
+ errs() << "Running 'xdot.py' program... ";
+ return ExecGraphViewer(ViewerPath, args, Filename, wait, ErrMsg);
+ }
- // Find which program the user wants
-#if HAVE_DOT
- if (program == GraphProgram::DOT)
- prog = LLVM_PATH_DOT;
-#endif
-#if (HAVE_FDP)
- if (program == GraphProgram::FDP)
- prog = LLVM_PATH_FDP;
+ 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_NEATO)
- if (program == GraphProgram::NEATO)
- prog = LLVM_PATH_NEATO;
-#endif
-#if (HAVE_TWOPI)
- if (program == GraphProgram::TWOPI)
- prog = LLVM_PATH_TWOPI;
-#endif
-#if (HAVE_CIRCO)
- if (program == GraphProgram::CIRCO)
- prog = 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);
+ // 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");
- errs() << "Running '" << prog << "' program... ";
+ 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);
- if (!ExecGraphViewer(prog, args, Filename, wait, ErrMsg))
- return;
+ errs() << "Running '" << GeneratorPath << "' program... ";
- std::string 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);
+ if (ExecGraphViewer(GeneratorPath, args, Filename, true, ErrMsg))
+ return true;
- ErrMsg.clear();
- if (!ExecGraphViewer(gv, args, PSFilename, wait, ErrMsg))
- return;
+ // The lifetime of StartArg must include the call of ExecGraphViewer
+ // because the args are passed as vector of char*.
+ std::string StartArg;
-#elif HAVE_DOTTY
- std::string dotty(LLVM_PATH_DOTTY);
+ args.clear();
+ 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);
+ }
- std::vector<const char*> args;
- args.push_back(dotty.c_str());
- args.push_back(Filename.c_str());
- args.push_back(0);
+ // 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)
- wait = false;
-#endif
- errs() << "Running 'dotty' program... ";
- if (!ExecGraphViewer(dotty, args, Filename, wait, ErrMsg))
- return;
+#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;
}
projects / oota-llvm.git / blobdiff