mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-19 02:52:53 +02:00
ae65e281f3
to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
299 lines
8.5 KiB
C++
299 lines
8.5 KiB
C++
//===- GraphWriter.cpp - Implements GraphWriter support routines ----------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file implements misc. GraphWriter support routines.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/Support/GraphWriter.h"
|
|
#include "llvm/ADT/SmallString.h"
|
|
#include "llvm/ADT/SmallVector.h"
|
|
#include "llvm/ADT/StringRef.h"
|
|
#include "llvm/Config/config.h"
|
|
#include "llvm/Support/CommandLine.h"
|
|
#include "llvm/Support/Compiler.h"
|
|
#include "llvm/Support/ErrorHandling.h"
|
|
#include "llvm/Support/ErrorOr.h"
|
|
#include "llvm/Support/FileSystem.h"
|
|
#include "llvm/Support/Program.h"
|
|
#include "llvm/Support/raw_ostream.h"
|
|
#include <cassert>
|
|
#include <system_error>
|
|
#include <string>
|
|
#include <vector>
|
|
|
|
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;
|
|
}
|
|
LLVM_FALLTHROUGH;
|
|
case '{': case '}':
|
|
case '<': case '>':
|
|
case '|': case '"':
|
|
Str.insert(Str.begin()+i, '\\'); // Escape character...
|
|
++i; // don't infinite loop
|
|
break;
|
|
}
|
|
return Str;
|
|
}
|
|
|
|
/// 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<StringRef> &args,
|
|
StringRef Filename, bool wait,
|
|
std::string &ErrMsg) {
|
|
if (wait) {
|
|
if (sys::ExecuteAndWait(ExecPath, args, None, {}, 0, 0, &ErrMsg)) {
|
|
errs() << "Error: " << ErrMsg << "\n";
|
|
return true;
|
|
}
|
|
sys::fs::remove(Filename);
|
|
errs() << " done. \n";
|
|
} else {
|
|
sys::ExecuteNoWait(ExecPath, args, None, {}, 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;
|
|
}
|
|
};
|
|
|
|
} // end anonymous 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");
|
|
}
|
|
|
|
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;
|
|
}
|