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Add new -d option to tblgen. It writes a make(1)-style dependency file.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132395 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Joerg Sonnenberger
2011-06-01 13:10:15 +00:00
parent b6fbec3a54
commit dd137903e4
7 changed files with 68 additions and 36 deletions
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utils/TableGen/TableGen.cpp
+43 -29
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@@ -172,6 +172,10 @@ namespace {
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("-"));
@@ -192,34 +196,6 @@ void llvm::PrintError(SMLoc ErrorLoc, const Twine &Msg) {
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 @@ int main(int argc, char **argv) {
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 @@ int main(int argc, char **argv) {
<< ":" << 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: