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Ubuntu installs this as xdot, so finding xdot.py would fail. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185860 91177308-0d34-0410-b5e6-96231b3b80d8
224 lines
6.3 KiB
C++
224 lines
6.3 KiB
C++
//===-- GraphWriter.cpp - Implements GraphWriter support routines ---------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements misc. GraphWriter support routines.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Support/GraphWriter.h"
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#include "llvm/Config/config.h"
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/Path.h"
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#include "llvm/Support/Program.h"
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using namespace llvm;
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static cl::opt<bool> ViewBackground("view-background", cl::Hidden,
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cl::desc("Execute graph viewer in the background. Creates tmp file litter."));
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std::string llvm::DOT::EscapeString(const std::string &Label) {
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std::string Str(Label);
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for (unsigned i = 0; i != Str.length(); ++i)
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switch (Str[i]) {
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case '\n':
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Str.insert(Str.begin()+i, '\\'); // Escape character...
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++i;
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Str[i] = 'n';
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break;
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case '\t':
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Str.insert(Str.begin()+i, ' '); // Convert to two spaces
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++i;
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Str[i] = ' ';
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break;
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case '\\':
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if (i+1 != Str.length())
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switch (Str[i+1]) {
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case 'l': continue; // don't disturb \l
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case '|': case '{': case '}':
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Str.erase(Str.begin()+i); continue;
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default: break;
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}
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case '{': case '}':
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case '<': case '>':
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case '|': case '"':
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Str.insert(Str.begin()+i, '\\'); // Escape character...
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++i; // don't infinite loop
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break;
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}
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return Str;
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}
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/// \brief Get a color string for this node number. Simply round-robin selects
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/// from a reasonable number of colors.
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StringRef llvm::DOT::getColorString(unsigned ColorNumber) {
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static const int NumColors = 20;
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static const char* Colors[NumColors] = {
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"aaaaaa", "aa0000", "00aa00", "aa5500", "0055ff", "aa00aa", "00aaaa",
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"555555", "ff5555", "55ff55", "ffff55", "5555ff", "ff55ff", "55ffff",
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"ffaaaa", "aaffaa", "ffffaa", "aaaaff", "ffaaff", "aaffff"};
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return Colors[ColorNumber % NumColors];
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}
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std::string llvm::createGraphFilename(const Twine &Name, int &FD) {
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FD = -1;
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SmallString<128> Filename;
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error_code EC = sys::fs::createTemporaryFile(Name, "dot", FD, Filename);
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if (EC) {
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errs() << "Error: " << EC.message() << "\n";
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return "";
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}
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errs() << "Writing '" << Filename << "'... ";
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return Filename.str();
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}
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// Execute the graph viewer. Return true if successful.
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static bool LLVM_ATTRIBUTE_UNUSED
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ExecGraphViewer(StringRef ExecPath, std::vector<const char*> &args,
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StringRef Filename, bool wait, std::string &ErrMsg) {
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if (wait) {
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if (sys::ExecuteAndWait(ExecPath, &args[0],0,0,0,0,&ErrMsg)) {
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errs() << "Error: " << ErrMsg << "\n";
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return false;
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}
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bool Existed;
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sys::fs::remove(Filename, Existed);
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errs() << " done. \n";
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}
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else {
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sys::ExecuteNoWait(ExecPath, &args[0],0,0,0,&ErrMsg);
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errs() << "Remember to erase graph file: " << Filename.str() << "\n";
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}
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return true;
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}
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void llvm::DisplayGraph(StringRef FilenameRef, bool wait,
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GraphProgram::Name program) {
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std::string Filename = FilenameRef;
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wait &= !ViewBackground;
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std::string ErrMsg;
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#if HAVE_GRAPHVIZ
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std::string Graphviz(LLVM_PATH_GRAPHVIZ);
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std::vector<const char*> args;
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args.push_back(Graphviz.c_str());
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args.push_back(Filename.c_str());
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args.push_back(0);
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errs() << "Running 'Graphviz' program... ";
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if (!ExecGraphViewer(Graphviz, args, Filename, wait, ErrMsg))
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return;
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#elif HAVE_XDOT
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std::vector<const char*> args;
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args.push_back(LLVM_PATH_XDOT);
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args.push_back(Filename.c_str());
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switch (program) {
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case GraphProgram::DOT: args.push_back("-f"); args.push_back("dot"); break;
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case GraphProgram::FDP: args.push_back("-f"); args.push_back("fdp"); break;
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case GraphProgram::NEATO: args.push_back("-f"); args.push_back("neato");break;
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case GraphProgram::TWOPI: args.push_back("-f"); args.push_back("twopi");break;
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case GraphProgram::CIRCO: args.push_back("-f"); args.push_back("circo");break;
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}
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args.push_back(0);
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errs() << "Running 'xdot.py' program... ";
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if (!ExecGraphViewer(LLVM_PATH_XDOT, args, Filename, wait, ErrMsg))
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return;
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#elif (HAVE_GV && (HAVE_DOT || HAVE_FDP || HAVE_NEATO || \
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HAVE_TWOPI || HAVE_CIRCO))
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std::string PSFilename = Filename + ".ps";
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std::string prog;
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// Set default grapher
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#if HAVE_CIRCO
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prog = LLVM_PATH_CIRCO;
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#endif
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#if HAVE_TWOPI
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prog = LLVM_PATH_TWOPI;
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#endif
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#if HAVE_NEATO
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prog = LLVM_PATH_NEATO;
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#endif
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#if HAVE_FDP
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prog = LLVM_PATH_FDP;
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#endif
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#if HAVE_DOT
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prog = LLVM_PATH_DOT;
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#endif
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// Find which program the user wants
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#if HAVE_DOT
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if (program == GraphProgram::DOT)
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prog = LLVM_PATH_DOT;
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#endif
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#if (HAVE_FDP)
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if (program == GraphProgram::FDP)
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prog = LLVM_PATH_FDP;
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#endif
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#if (HAVE_NEATO)
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if (program == GraphProgram::NEATO)
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prog = LLVM_PATH_NEATO;
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#endif
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#if (HAVE_TWOPI)
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if (program == GraphProgram::TWOPI)
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prog = LLVM_PATH_TWOPI;
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#endif
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#if (HAVE_CIRCO)
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if (program == GraphProgram::CIRCO)
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prog = LLVM_PATH_CIRCO;
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#endif
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std::vector<const char*> args;
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args.push_back(prog.c_str());
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args.push_back("-Tps");
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args.push_back("-Nfontname=Courier");
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args.push_back("-Gsize=7.5,10");
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args.push_back(Filename.c_str());
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args.push_back("-o");
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args.push_back(PSFilename.c_str());
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args.push_back(0);
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errs() << "Running '" << prog << "' program... ";
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if (!ExecGraphViewer(prog, args, Filename, wait, ErrMsg))
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return;
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std::string gv(LLVM_PATH_GV);
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args.clear();
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args.push_back(gv.c_str());
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args.push_back(PSFilename.c_str());
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args.push_back("--spartan");
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args.push_back(0);
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ErrMsg.clear();
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if (!ExecGraphViewer(gv, args, PSFilename, wait, ErrMsg))
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return;
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#elif HAVE_DOTTY
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std::string dotty(LLVM_PATH_DOTTY);
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std::vector<const char*> args;
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args.push_back(dotty.c_str());
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args.push_back(Filename.c_str());
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args.push_back(0);
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// Dotty spawns another app and doesn't wait until it returns
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#if defined (__MINGW32__) || defined (_WINDOWS)
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wait = false;
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#endif
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errs() << "Running 'dotty' program... ";
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if (!ExecGraphViewer(dotty, args, Filename, wait, ErrMsg))
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return;
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#endif
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}
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