Add new -d option to tblgen. It writes a make(1)-style dependency file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132395 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/TableGen.cpp b/utils/TableGen/TableGen.cpp
index d88a2d6..fb941c4 100644
--- a/utils/TableGen/TableGen.cpp
+++ b/utils/TableGen/TableGen.cpp
@@ -173,6 +173,10 @@
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>
@@ -192,34 +196,6 @@
SrcMgr.PrintMessage(ErrorLoc, Msg, "error");
}
-
-
-/// ParseFile - this function begins the parsing of the specified tablegen
-/// file.
-static bool ParseFile(const std::string &Filename,
- const std::vector<std::string> &IncludeDirs,
- SourceMgr &SrcMgr,
- RecordKeeper &Records) {
- OwningPtr<MemoryBuffer> File;
- if (error_code ec = MemoryBuffer::getFileOrSTDIN(Filename.c_str(), File)) {
- errs() << "Could not open input file '" << Filename << "': "
- << ec.message() <<"\n";
- return true;
- }
- 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);
-
- TGParser Parser(SrcMgr, Records);
-
- return Parser.ParseFile();
-}
-
int main(int argc, char **argv) {
RecordKeeper Records;
@@ -230,7 +206,24 @@
try {
// Parse the input file.
- if (ParseFile(InputFilename, IncludeDirs, SrcMgr, Records))
+ 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);
+
+ TGParser Parser(SrcMgr, Records);
+
+ if (Parser.ParseFile())
return 1;
std::string Error;
@@ -240,6 +233,27 @@
<< ":" << Error << "\n";
return 1;
}
+ if (!DependFilename.empty()) {
+ if (OutputFilename == "-") {
+ errs() << argv[0] << ": the option -d must be used together with -o\n";
+ return 1;
+ }
+ tool_output_file DepOut(DependFilename.c_str(), Error);
+ if (!Error.empty()) {
+ errs() << argv[0] << ": error opening " << DependFilename
+ << ":" << Error << "\n";
+ return 1;
+ }
+ DepOut.os() << DependFilename << ":";
+ 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();
+ }
switch (Action) {
case PrintRecords: