mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-27 15:29:51 +00:00
This compiles with no changes to clang/lld/lldb with MSVC and includes overloads to various functions which are used by those projects and llvm which have OwningPtr's as parameters. This should allow out of tree projects some time to move. There are also no changes to libs/Target, which should help out of tree targets have time to move, if necessary. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203083 91177308-0d34-0410-b5e6-96231b3b80d8
130 lines
3.9 KiB
C++
130 lines
3.9 KiB
C++
//===- Main.cpp - Top-Level TableGen implementation -----------------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// TableGen is a tool which can be used to build up a description of something,
|
|
// then invoke one or more "tablegen backends" to emit information about the
|
|
// description in some predefined format. In practice, this is used by the LLVM
|
|
// code generators to automate generation of a code generator through a
|
|
// high-level description of the target.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "TGParser.h"
|
|
#include "llvm/Support/CommandLine.h"
|
|
#include "llvm/Support/MemoryBuffer.h"
|
|
#include "llvm/Support/ToolOutputFile.h"
|
|
#include "llvm/Support/system_error.h"
|
|
#include "llvm/TableGen/Error.h"
|
|
#include "llvm/TableGen/Main.h"
|
|
#include "llvm/TableGen/Record.h"
|
|
#include <algorithm>
|
|
#include <cstdio>
|
|
using namespace llvm;
|
|
|
|
namespace {
|
|
cl::opt<std::string>
|
|
OutputFilename("o", cl::desc("Output filename"), cl::value_desc("filename"),
|
|
cl::init("-"));
|
|
|
|
cl::opt<std::string>
|
|
DependFilename("d",
|
|
cl::desc("Dependency filename"),
|
|
cl::value_desc("filename"),
|
|
cl::init(""));
|
|
|
|
cl::opt<std::string>
|
|
InputFilename(cl::Positional, cl::desc("<input file>"), cl::init("-"));
|
|
|
|
cl::list<std::string>
|
|
IncludeDirs("I", cl::desc("Directory of include files"),
|
|
cl::value_desc("directory"), cl::Prefix);
|
|
}
|
|
|
|
/// \brief Create a dependency file for `-d` option.
|
|
///
|
|
/// This functionality is really only for the benefit of the build system.
|
|
/// It is similar to GCC's `-M*` family of options.
|
|
static int createDependencyFile(const TGParser &Parser, const char *argv0) {
|
|
if (OutputFilename == "-") {
|
|
errs() << argv0 << ": the option -d must be used together with -o\n";
|
|
return 1;
|
|
}
|
|
std::string Error;
|
|
tool_output_file DepOut(DependFilename.c_str(), Error, sys::fs::F_Text);
|
|
if (!Error.empty()) {
|
|
errs() << argv0 << ": error opening " << DependFilename
|
|
<< ":" << Error << "\n";
|
|
return 1;
|
|
}
|
|
DepOut.os() << OutputFilename << ":";
|
|
const TGLexer::DependenciesMapTy &Dependencies = Parser.getDependencies();
|
|
for (TGLexer::DependenciesMapTy::const_iterator I = Dependencies.begin(),
|
|
E = Dependencies.end();
|
|
I != E; ++I) {
|
|
DepOut.os() << " " << I->first;
|
|
}
|
|
DepOut.os() << "\n";
|
|
DepOut.keep();
|
|
return 0;
|
|
}
|
|
|
|
namespace llvm {
|
|
|
|
int TableGenMain(char *argv0, TableGenMainFn *MainFn) {
|
|
RecordKeeper Records;
|
|
|
|
// Parse the input file.
|
|
std::unique_ptr<MemoryBuffer> File;
|
|
if (error_code ec =
|
|
MemoryBuffer::getFileOrSTDIN(InputFilename, File)) {
|
|
errs() << "Could not open input file '" << InputFilename << "': "
|
|
<< ec.message() <<"\n";
|
|
return 1;
|
|
}
|
|
MemoryBuffer *F = File.release();
|
|
|
|
// Tell SrcMgr about this buffer, which is what TGParser will pick up.
|
|
SrcMgr.AddNewSourceBuffer(F, SMLoc());
|
|
|
|
// Record the location of the include directory so that the lexer can find
|
|
// it later.
|
|
SrcMgr.setIncludeDirs(IncludeDirs);
|
|
|
|
TGParser Parser(SrcMgr, Records);
|
|
|
|
if (Parser.ParseFile())
|
|
return 1;
|
|
|
|
std::string Error;
|
|
tool_output_file Out(OutputFilename.c_str(), Error, sys::fs::F_Text);
|
|
if (!Error.empty()) {
|
|
errs() << argv0 << ": error opening " << OutputFilename
|
|
<< ":" << Error << "\n";
|
|
return 1;
|
|
}
|
|
if (!DependFilename.empty()) {
|
|
if (int Ret = createDependencyFile(Parser, argv0))
|
|
return Ret;
|
|
}
|
|
|
|
if (MainFn(Out.os(), Records))
|
|
return 1;
|
|
|
|
if (ErrorsPrinted > 0) {
|
|
errs() << argv0 << ": " << ErrorsPrinted << " errors.\n";
|
|
return 1;
|
|
}
|
|
|
|
// Declare success.
|
|
Out.keep();
|
|
return 0;
|
|
}
|
|
|
|
}
|