forked from OSchip/llvm-project
91 lines
3.4 KiB
C++
91 lines
3.4 KiB
C++
//===--- CreateInvocationFromCommandLine.cpp - CompilerInvocation from Args ==//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// Construct a compiler invocation object for command line driver arguments
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "clang/Frontend/Utils.h"
|
|
#include "clang/Frontend/CompilerInstance.h"
|
|
#include "clang/Frontend/DiagnosticOptions.h"
|
|
#include "clang/Frontend/FrontendDiagnostic.h"
|
|
#include "clang/Driver/Compilation.h"
|
|
#include "clang/Driver/Driver.h"
|
|
#include "clang/Driver/ArgList.h"
|
|
#include "clang/Driver/Options.h"
|
|
#include "clang/Driver/Tool.h"
|
|
#include "llvm/Support/Host.h"
|
|
using namespace clang;
|
|
|
|
/// createInvocationFromCommandLine - Construct a compiler invocation object for
|
|
/// a command line argument vector.
|
|
///
|
|
/// \return A CompilerInvocation, or 0 if none was built for the given
|
|
/// argument vector.
|
|
CompilerInvocation *
|
|
clang::createInvocationFromCommandLine(llvm::ArrayRef<const char *> ArgList,
|
|
llvm::IntrusiveRefCntPtr<Diagnostic> Diags) {
|
|
if (!Diags.getPtr()) {
|
|
// No diagnostics engine was provided, so create our own diagnostics object
|
|
// with the default options.
|
|
DiagnosticOptions DiagOpts;
|
|
Diags = CompilerInstance::createDiagnostics(DiagOpts, ArgList.size(),
|
|
ArgList.begin());
|
|
}
|
|
|
|
llvm::SmallVector<const char *, 16> Args;
|
|
Args.push_back("<clang>"); // FIXME: Remove dummy argument.
|
|
Args.insert(Args.end(), ArgList.begin(), ArgList.end());
|
|
|
|
// FIXME: Find a cleaner way to force the driver into restricted modes. We
|
|
// also want to force it to use clang.
|
|
Args.push_back("-fsyntax-only");
|
|
|
|
// FIXME: We shouldn't have to pass in the path info.
|
|
driver::Driver TheDriver("clang", llvm::sys::getHostTriple(),
|
|
"a.out", false, false, *Diags);
|
|
|
|
// Don't check that inputs exist, they may have been remapped.
|
|
TheDriver.setCheckInputsExist(false);
|
|
|
|
llvm::OwningPtr<driver::Compilation> C(TheDriver.BuildCompilation(Args));
|
|
|
|
// Just print the cc1 options if -### was present.
|
|
if (C->getArgs().hasArg(driver::options::OPT__HASH_HASH_HASH)) {
|
|
C->PrintJob(llvm::errs(), C->getJobs(), "\n", true);
|
|
return 0;
|
|
}
|
|
|
|
// We expect to get back exactly one command job, if we didn't something
|
|
// failed.
|
|
const driver::JobList &Jobs = C->getJobs();
|
|
if (Jobs.size() != 1 || !isa<driver::Command>(Jobs.begin())) {
|
|
llvm::SmallString<256> Msg;
|
|
llvm::raw_svector_ostream OS(Msg);
|
|
C->PrintJob(OS, C->getJobs(), "; ", true);
|
|
Diags->Report(diag::err_fe_expected_compiler_job) << OS.str();
|
|
return 0;
|
|
}
|
|
|
|
const driver::Command *Cmd = cast<driver::Command>(*Jobs.begin());
|
|
if (llvm::StringRef(Cmd->getCreator().getName()) != "clang") {
|
|
Diags->Report(diag::err_fe_expected_clang_command);
|
|
return 0;
|
|
}
|
|
|
|
const driver::ArgStringList &CCArgs = Cmd->getArguments();
|
|
CompilerInvocation *CI = new CompilerInvocation();
|
|
CompilerInvocation::CreateFromArgs(*CI,
|
|
const_cast<const char **>(CCArgs.data()),
|
|
const_cast<const char **>(CCArgs.data()) +
|
|
CCArgs.size(),
|
|
*Diags);
|
|
return CI;
|
|
}
|