mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-21 18:29:46 +00:00
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221547 91177308-0d34-0410-b5e6-96231b3b80d8
244 lines
7.2 KiB
C++
244 lines
7.2 KiB
C++
//===-- GraphWriter.cpp - Implements GraphWriter support routines ---------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file implements misc. GraphWriter support routines.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/Support/GraphWriter.h"
|
|
#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;
|
|
|
|
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)
|
|
switch (Str[i]) {
|
|
case '\n':
|
|
Str.insert(Str.begin()+i, '\\'); // Escape character...
|
|
++i;
|
|
Str[i] = 'n';
|
|
break;
|
|
case '\t':
|
|
Str.insert(Str.begin()+i, ' '); // Convert to two spaces
|
|
++i;
|
|
Str[i] = ' ';
|
|
break;
|
|
case '\\':
|
|
if (i+1 != Str.length())
|
|
switch (Str[i+1]) {
|
|
case 'l': continue; // don't disturb \l
|
|
case '|': case '{': case '}':
|
|
Str.erase(Str.begin()+i); continue;
|
|
default: break;
|
|
}
|
|
case '{': case '}':
|
|
case '<': case '>':
|
|
case '|': case '"':
|
|
Str.insert(Str.begin()+i, '\\'); // Escape character...
|
|
++i; // don't infinite loop
|
|
break;
|
|
}
|
|
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.str() << "\n";
|
|
}
|
|
return false;
|
|
}
|
|
|
|
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;
|
|
}
|
|
};
|
|
|
|
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");
|
|
}
|
|
|
|
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;
|
|
}
|