forked from OSchip/llvm-project
185 lines
4.8 KiB
C++
185 lines
4.8 KiB
C++
//===--- Triple.cpp - Target triple helper class --------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ADT/Triple.h"
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#include <cassert>
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#include <cstring>
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using namespace llvm;
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//
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const char *Triple::getArchTypeName(ArchType Kind) {
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switch (Kind) {
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case InvalidArch: return "<invalid>";
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case UnknownArch: return "unknown";
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case x86: return "i386";
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case x86_64: return "x86_64";
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case ppc: return "powerpc";
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case ppc64: return "powerpc64";
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}
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return "<invalid>";
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}
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const char *Triple::getVendorTypeName(VendorType Kind) {
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switch (Kind) {
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case UnknownVendor: return "unknown";
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case Apple: return "apple";
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case PC: return "PC";
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}
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return "<invalid>";
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}
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const char *Triple::getOSTypeName(OSType Kind) {
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switch (Kind) {
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case UnknownOS: return "unknown";
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case Darwin: return "darwin";
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case FreeBSD: return "freebsd";
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case Linux: return "linux";
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}
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return "<invalid>";
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}
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//
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void Triple::Parse() const {
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assert(!isInitialized() && "Invalid parse call.");
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std::string ArchName = getArchName();
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if (ArchName.size() == 4 && ArchName[0] == 'i' &&
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ArchName[2] == '8' && ArchName[3] == '6')
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Arch = x86;
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else if (ArchName == "amd64" || ArchName == "x86_64")
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Arch = x86_64;
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else if (ArchName == "powerpc")
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Arch = ppc;
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else if (ArchName == "powerpc64")
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Arch = ppc64;
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else
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Arch = UnknownArch;
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std::string VendorName = getVendorName();
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if (VendorName == "apple")
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Vendor = Apple;
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else if (VendorName == "pc")
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Vendor = PC;
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else
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Vendor = UnknownVendor;
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std::string OSName = getOSName();
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if (memcmp(&OSName[0], "darwin", 6) == 0)
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OS = Darwin;
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else if (memcmp(&OSName[0], "freebsd", 7) == 0)
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OS = FreeBSD;
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else if (memcmp(&OSName[0], "linux", 5) == 0)
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OS = Linux;
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else
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OS = UnknownOS;
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assert(isInitialized() && "Failed to initialize!");
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}
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static std::string extract(const std::string &A,
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std::string::size_type begin,
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std::string::size_type end) {
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if (begin == std::string::npos)
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return "";
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if (end == std::string::npos)
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return A.substr(begin);
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return A.substr(begin, end - begin);
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}
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static std::string extract1(const std::string &A,
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std::string::size_type begin,
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std::string::size_type end) {
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if (begin == std::string::npos || begin == end)
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return "";
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return extract(A, begin + 1, end);
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}
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std::string Triple::getArchName() const {
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std::string Tmp = Data;
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return extract(Tmp, 0, Tmp.find('-'));
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}
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std::string Triple::getVendorName() const {
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std::string Tmp = Data;
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Tmp = extract1(Tmp, Tmp.find('-'), std::string::npos);
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return extract(Tmp, 0, Tmp.find('-'));
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}
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std::string Triple::getOSName() const {
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std::string Tmp = Data;
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Tmp = extract1(Tmp, Tmp.find('-'), std::string::npos);
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Tmp = extract1(Tmp, Tmp.find('-'), std::string::npos);
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return extract(Tmp, 0, Tmp.find('-'));
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}
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std::string Triple::getEnvironmentName() const {
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std::string Tmp = Data;
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Tmp = extract1(Tmp, Tmp.find('-'), std::string::npos);
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Tmp = extract1(Tmp, Tmp.find('-'), std::string::npos);
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Tmp = extract1(Tmp, Tmp.find('-'), std::string::npos);
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return extract(Tmp, 0, std::string::npos);
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}
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std::string Triple::getOSAndEnvironmentName() const {
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std::string Tmp = Data;
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Tmp = extract1(Tmp, Tmp.find('-'), std::string::npos);
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Tmp = extract1(Tmp, Tmp.find('-'), std::string::npos);
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return extract(Tmp, 0, std::string::npos);
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}
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void Triple::setTriple(const std::string &Str) {
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Data = Str;
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Arch = InvalidArch;
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}
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void Triple::setArch(ArchType Kind) {
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setArchName(getArchTypeName(Kind));
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}
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void Triple::setVendor(VendorType Kind) {
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setVendorName(getVendorTypeName(Kind));
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}
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void Triple::setOS(OSType Kind) {
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setOSName(getOSTypeName(Kind));
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}
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void Triple::setArchName(const std::string &Str) {
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setTriple(Str + "-" + getVendorName() + "-" + getOSAndEnvironmentName());
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}
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void Triple::setVendorName(const std::string &Str) {
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setTriple(getArchName() + "-" + Str + "-" + getOSAndEnvironmentName());
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}
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void Triple::setOSName(const std::string &Str) {
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if (hasEnvironment())
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setTriple(getArchName() + "-" + getVendorName() + "-" + Str +
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"-" + getEnvironmentName());
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else
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setTriple(getArchName() + "-" + getVendorName() + "-" + Str);
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}
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void Triple::setEnvironmentName(const std::string &Str) {
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setTriple(getArchName() + "-" + getVendorName() + "-" + getOSName() +
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"-" + Str);
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}
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void Triple::setOSAndEnvironmentName(const std::string &Str) {
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setTriple(getArchName() + "-" + getVendorName() + "-" + Str);
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}
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