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//===--- Driver.cpp - Clang GCC Compatible Driver -----------------------*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "clang/Driver/Driver.h"
#include "clang/Driver/Arg.h"
#include "clang/Driver/ArgList.h"
#include "clang/Driver/Compilation.h"
#include "clang/Driver/Option.h"
#include "clang/Driver/Options.h"
#include "llvm/Support/raw_ostream.h"
using namespace clang::driver;
Driver::Driver(const char *_Name, const char *_Dir)
: Opts(new OptTable()),
Name(_Name), Dir(_Dir), Host(0),
CCCIsCXX(false), CCCEcho(false),
CCCNoClang(false), CCCNoClangCXX(false), CCCNoClangCPP(false)
{
}
Driver::~Driver() {
delete Opts;
}
ArgList *Driver::ParseArgStrings(const char **ArgBegin, const char **ArgEnd) {
ArgList *Args = new ArgList(ArgBegin, ArgEnd);
unsigned Index = 0, End = ArgEnd - ArgBegin;
while (Index < End) {
unsigned Prev = Index;
Arg *A = getOpts().ParseOneArg(*Args, Index, End);
if (A)
Args->append(A);
assert(Index > Prev && "Parser failed to consume argument.");
}
return Args;
}
Compilation *Driver::BuildCompilation(int argc, const char **argv) {
// FIXME: This stuff needs to go into the Compilation, not the
// driver.
bool CCCPrintOptions = false, CCCPrintPhases = false;
const char **Start = argv + 1, **End = argv + argc;
// Read -ccc args.
//
// FIXME: We need to figure out where this behavior should
// live. Most of it should be outside in the client; the parts that
// aren't should have proper options, either by introducing new ones
// or by overloading gcc ones like -V or -b.
for (; Start != End && memcmp(*Start, "-ccc-", 5) == 0; ++Start) {
const char *Opt = *Start + 5;
if (!strcmp(Opt, "print-options")) {
CCCPrintOptions = true;
} else if (!strcmp(Opt, "print-phases")) {
CCCPrintPhases = true;
} else if (!strcmp(Opt, "cxx")) {
CCCIsCXX = true;
} else if (!strcmp(Opt, "echo")) {
CCCEcho = true;
} else if (!strcmp(Opt, "no-clang")) {
CCCNoClang = true;
} else if (!strcmp(Opt, "no-clang-cxx")) {
CCCNoClangCXX = true;
} else if (!strcmp(Opt, "no-clang-cpp")) {
CCCNoClangCPP = true;
} else if (!strcmp(Opt, "clang-archs")) {
assert(Start+1 < End && "FIXME: -ccc- argument handling.");
const char *Cur = *++Start;
for (;;) {
const char *Next = strchr(Cur, ',');
if (Next) {
CCCClangArchs.insert(std::string(Cur, Next));
Cur = Next + 1;
} else {
CCCClangArchs.insert(std::string(Cur));
break;
}
}
} else if (!strcmp(Opt, "host-bits")) {
assert(Start+1 < End && "FIXME: -ccc- argument handling.");
HostBits = *++Start;
} else if (!strcmp(Opt, "host-machine")) {
assert(Start+1 < End && "FIXME: -ccc- argument handling.");
HostMachine = *++Start;
} else if (!strcmp(Opt, "host-release")) {
assert(Start+1 < End && "FIXME: -ccc- argument handling.");
HostRelease = *++Start;
} else if (!strcmp(Opt, "host-system")) {
assert(Start+1 < End && "FIXME: -ccc- argument handling.");
HostSystem = *++Start;
} else {
// FIXME: Error handling.
llvm::errs() << "invalid option: " << *Start << "\n";
exit(1);
}
}
ArgList *Args = ParseArgStrings(Start, End);
// FIXME: This behavior shouldn't be here.
if (CCCPrintOptions) {
PrintOptions(Args);
exit(0);
}
assert(0 && "FIXME: Implement");
return new Compilation();
}
void Driver::PrintOptions(const ArgList *Args) {
unsigned i = 0;
for (ArgList::const_iterator it = Args->begin(), ie = Args->end();
it != ie; ++it, ++i) {
Arg *A = *it;
llvm::errs() << "Option " << i << " - "
<< "Name: \"" << A->getOption().getName() << "\", "
<< "Values: {";
for (unsigned j = 0; j < A->getNumValues(); ++j) {
if (j)
llvm::errs() << ", ";
llvm::errs() << '"' << A->getValue(*Args, j) << '"';
}
llvm::errs() << "}\n";
}
}
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