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//===--- HostInfo.cpp - Host specific information -----------------------*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "clang/Driver/HostInfo.h"
#include "clang/Driver/Arg.h"
#include "clang/Driver/ArgList.h"
#include "clang/Driver/Option.h"
#include "clang/Driver/Options.h"
#include "llvm/ADT/StringMap.h"
#include "llvm/Support/Compiler.h"
#include <cassert>
using namespace clang::driver;
HostInfo::HostInfo(const char *_Arch, const char *_Platform,
const char *_OS)
: Arch(_Arch), Platform(_Platform), OS(_OS)
{
}
HostInfo::~HostInfo() {
}
namespace VISIBILITY_HIDDEN {
// Darwin Host Info
/// DarwinHostInfo - Darwin host information implementation.
class DarwinHostInfo : public HostInfo {
/// Darwin version of host.
unsigned DarwinVersion[3];
/// GCC version to use on this host.
unsigned GCCVersion[3];
/// Cache of tool chains we have created.
mutable llvm::StringMap<ToolChain*> ToolChains;
public:
DarwinHostInfo(const char *Arch, const char *Platform, const char *OS);
virtual bool useDriverDriver() const;
virtual ToolChain *getToolChain(const ArgList &Args,
const char *ArchName) const;
};
DarwinHostInfo::DarwinHostInfo(const char *_Arch, const char *_Platform,
const char *_OS)
: HostInfo(_Arch, _Platform, _OS) {
assert((getArchName() == "i386" || getArchName() == "x86_64" ||
getArchName() == "ppc" || getArchName() == "ppc64") &&
"Unknown Darwin arch.");
// FIXME: How to deal with errors?
// We can only call 4.2.1 for now.
GCCVersion[0] = 4;
GCCVersion[1] = 2;
GCCVersion[2] = 1;
}
bool DarwinHostInfo::useDriverDriver() const {
return true;
}
ToolChain *DarwinHostInfo::getToolChain(const ArgList &Args,
const char *ArchName) const {
if (!ArchName) {
ArchName = getArchName().c_str();
// If no arch name is specified, infer it from the host and
// -m32/-m64.
if (Arg *A = Args.getLastArg(options::OPT_m32, options::OPT_m64)) {
if (getArchName() == "i386" || getArchName() == "x86_64") {
ArchName =
(A->getOption().getId() == options::OPT_m32) ? "i386" : "x86_64";
} else if (getArchName() == "ppc" || getArchName() == "ppc64") {
ArchName =
(A->getOption().getId() == options::OPT_m32) ? "ppc" : "ppc64";
}
}
}
ToolChain *&TC = ToolChains[ArchName];
if (!TC) {
TC = 0;
#if 0
if (ArchName == "i386")
TC = new Darwin_X86_ToolChain(ArchName);
else if (ArchName == "x86_64")
TC = new Darwin_X86_ToolChain(ArchName);
else
TC = new Darwin_GCC_ToolChain(ArchName);
#endif
}
return TC;
}
// Unknown Host Info
/// UnknownHostInfo - Generic host information to use for unknown
/// hosts.
class UnknownHostInfo : public HostInfo {
/// Cache of tool chains we have created.
mutable llvm::StringMap<ToolChain*> ToolChains;
public:
UnknownHostInfo(const char *Arch, const char *Platform, const char *OS);
virtual bool useDriverDriver() const;
virtual ToolChain *getToolChain(const ArgList &Args,
const char *ArchName) const;
};
UnknownHostInfo::UnknownHostInfo(const char *Arch, const char *Platform,
const char *OS)
: HostInfo(Arch, Platform, OS) {
}
bool UnknownHostInfo::useDriverDriver() const {
return false;
}
ToolChain *UnknownHostInfo::getToolChain(const ArgList &Args,
const char *ArchName) const {
assert(!ArchName &&
"Unexpected arch name on platform without driver driver support.");
// Automatically handle some instances of -m32/-m64 we know about.
ArchName = getArchName().c_str();
if (Arg *A = Args.getLastArg(options::OPT_m32, options::OPT_m64)) {
if (getArchName() == "i386" || getArchName() == "x86_64") {
ArchName =
(A->getOption().getId() == options::OPT_m32) ? "i386" : "x86_64";
} else if (getArchName() == "ppc" || getArchName() == "ppc64") {
ArchName =
(A->getOption().getId() == options::OPT_m32) ? "ppc" : "ppc64";
}
}
ToolChain *&TC = ToolChains[ArchName];
if (!TC)
TC = 0; //new Generic_GCC_ToolChain(ArchName);
return 0;
}
}
const HostInfo *clang::driver::createDarwinHostInfo(const char *Arch,
const char *Platform,
const char *OS) {
return new DarwinHostInfo(Arch, Platform, OS);
}
const HostInfo *clang::driver::createUnknownHostInfo(const char *Arch,
const char *Platform,
const char *OS) {
return new UnknownHostInfo(Arch, Platform, OS);
}
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