//
//===----------------------------------------------------------------------===//
+#include "llvm/TableGen/Main.h"
#include "TGParser.h"
-#include "TGPreprocessor.h"
-#include "llvm/ADT/OwningPtr.h"
#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/FileSystem.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/Record.h"
-#include "llvm/TableGen/TableGenAction.h"
#include <algorithm>
#include <cstdio>
+#include <system_error>
using namespace llvm;
-namespace {
- cl::opt<std::string>
- OutputFilename("o", cl::desc("Output filename"), cl::value_desc("filename"),
- cl::init("-"));
+static cl::opt<std::string>
+OutputFilename("o", cl::desc("Output filename"), cl::value_desc("filename"),
+ cl::init("-"));
+
+static cl::opt<std::string>
+DependFilename("d",
+ cl::desc("Dependency filename"),
+ cl::value_desc("filename"),
+ cl::init(""));
+
+static cl::opt<std::string>
+InputFilename(cl::Positional, cl::desc("<input file>"), cl::init("-"));
+
+static 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::error_code EC;
+ tool_output_file DepOut(DependFilename, EC, sys::fs::F_Text);
+ if (EC) {
+ errs() << argv0 << ": error opening " << DependFilename << ":"
+ << EC.message() << "\n";
+ return 1;
+ }
+ DepOut.os() << OutputFilename << ":";
+ for (const auto &Dep : Parser.getDependencies()) {
+ DepOut.os() << ' ' << Dep.first;
+ }
+ DepOut.os() << "\n";
+ DepOut.keep();
+ return 0;
+}
- cl::opt<std::string>
- DependFilename("d", cl::desc("Dependency filename"), cl::value_desc("filename"),
- cl::init(""));
+int llvm::TableGenMain(char *argv0, TableGenMainFn *MainFn) {
+ RecordKeeper Records;
- cl::opt<std::string>
- InputFilename(cl::Positional, cl::desc("<input file>"), cl::init("-"));
+ // Parse the input file.
+ ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr =
+ MemoryBuffer::getFileOrSTDIN(InputFilename);
+ if (std::error_code EC = FileOrErr.getError()) {
+ errs() << "Could not open input file '" << InputFilename
+ << "': " << EC.message() << "\n";
+ return 1;
+ }
- cl::list<std::string>
- IncludeDirs("I", cl::desc("Directory of include files"),
- cl::value_desc("directory"), cl::Prefix);
+ // Tell SrcMgr about this buffer, which is what TGParser will pick up.
+ SrcMgr.AddNewSourceBuffer(std::move(*FileOrErr), SMLoc());
- cl::opt<bool>
- PreprocessOnly("E",
- cl::desc("Stop after the preprocessing stage; "
- "This is work in progress and has no effect yet"),
- cl::init(false));
-}
+ // Record the location of the include directory so that the lexer can find
+ // it later.
+ SrcMgr.setIncludeDirs(IncludeDirs);
-namespace llvm {
+ TGParser Parser(SrcMgr, Records);
-int TableGenMain(char *argv0, TableGenAction &Action) {
- RecordKeeper Records;
+ if (Parser.ParseFile())
+ return 1;
- try {
- // Parse the input file.
- OwningPtr<MemoryBuffer> File;
- if (error_code ec = MemoryBuffer::getFileOrSTDIN(InputFilename.c_str(), File)) {
- errs() << "Could not open input file '" << InputFilename << "': "
- << ec.message() <<"\n";
- return 1;
- }
- MemoryBuffer *F = File.take();
-
- // 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);
-
- // TODO(clchiou): Integrate preprocessor into TGParser
- if (PreprocessOnly) {
- std::string Error;
- tool_output_file Out(OutputFilename.c_str(), Error);
- if (!Error.empty()) {
- errs() << argv0 << ": error opening " << OutputFilename
- << ":" << Error << "\n";
- return 1;
- }
- TGPreprocessor Preprocessor(SrcMgr, Out);
- if (Preprocessor.PreprocessFile())
- return 1;
- Out.keep();
- return 0;
- }
-
- TGParser Parser(SrcMgr, Records);
-
- if (Parser.ParseFile())
- return 1;
-
- std::string Error;
- tool_output_file Out(OutputFilename.c_str(), Error);
- if (!Error.empty()) {
- errs() << argv0 << ": error opening " << OutputFilename
- << ":" << Error << "\n";
- return 1;
- }
- if (!DependFilename.empty()) {
- if (OutputFilename == "-") {
- errs() << argv0 << ": the option -d must be used together with -o\n";
- return 1;
- }
- tool_output_file DepOut(DependFilename.c_str(), Error);
- if (!Error.empty()) {
- errs() << argv0 << ": error opening " << DependFilename
- << ":" << Error << "\n";
- return 1;
- }
- DepOut.os() << OutputFilename << ":";
- const std::vector<std::string> &Dependencies = Parser.getDependencies();
- for (std::vector<std::string>::const_iterator I = Dependencies.begin(),
- E = Dependencies.end();
- I != E; ++I) {
- DepOut.os() << " " << (*I);
- }
- DepOut.os() << "\n";
- DepOut.keep();
- }
-
- if (Action(Out.os(), Records))
- return 1;
-
- // Declare success.
- Out.keep();
- return 0;
-
- } catch (const TGError &Error) {
- PrintError(Error);
- } catch (const std::string &Error) {
- PrintError(Error);
- } catch (const char *Error) {
- PrintError(Error);
- } catch (...) {
- errs() << argv0 << ": Unknown unexpected exception occurred.\n";
+ std::error_code EC;
+ tool_output_file Out(OutputFilename, EC, sys::fs::F_Text);
+ if (EC) {
+ errs() << argv0 << ": error opening " << OutputFilename << ":"
+ << EC.message() << "\n";
+ return 1;
+ }
+ if (!DependFilename.empty()) {
+ if (int Ret = createDependencyFile(Parser, argv0))
+ return Ret;
}
- return 1;
-}
+ if (MainFn(Out.os(), Records))
+ return 1;
+
+ if (ErrorsPrinted > 0) {
+ errs() << argv0 << ": " << ErrorsPrinted << " errors.\n";
+ return 1;
+ }
+ // Declare success.
+ Out.keep();
+ return 0;
}
projects / oota-llvm.git / blobdiff