source/architecture.cpp

   1 #include <limits>
   2 #include <msp/strings/format.h>
   3 #include <msp/strings/utils.h>
   4 #include "architecture.h"
   5 #include "builder.h"
   6 #include "executable.h"
   7 #include "importlibrary.h"
   8 #include "objectfile.h"
   9 #include "sharedlibrary.h"
  10 #include "staticlibrary.h"
  11 #include "sysutils.h"
  12
  13 using namespace std;
  14 using namespace Msp;
  15
  16 namespace {
  17
  18 const char *types[] =
  19 {
  20         "x86",
  21         "arm",
  22         "ppc",
  23         0
  24 };
  25
  26 const char *cpus[] =
  27 {
  28         "i386",       "x86",
  29         "i486",       "x86",
  30         "pentium",    "x86",
  31         "pentiumpro", "x86",
  32         "pentium2",   "x86",
  33         "pentium3",   "x86",
  34         "pentium4",   "x86",
  35         "core2",      "x86",
  36         "nehalem",    "x86",
  37         "k6",         "x86",
  38         "athlon",     "x86",
  39         "athlonxp",   "x86",
  40         "athlon64",   "x86",
  41         "armv5",      "arm",
  42         "armv6",      "arm",
  43         "armv7",      "arm",
  44         "armv7a",     "arm",
  45         0
  46 };
  47
  48 const char *fpus[] =
  49 {
  50         "387",   "x86",
  51         "sse",   "x86",
  52         "vfpv3", "arm",
  53         "neon",  "arm",
  54         0
  55 };
  56
  57 const char *systems[] =
  58 {
  59         "linux",
  60         "freebsd",
  61         "darwin",
  62         "windows",
  63         "android",
  64         0
  65 };
  66
  67 const char *toolchains[] =
  68 {
  69         "gnu",
  70         "clang",
  71         0
  72 };
  73
  74 const char *aliases[] =
  75 {
  76         "pc",              "x86",
  77         "x86_64",          "x86-64",
  78         "x64",             "x86-64",
  79         "amd64",           "x86-64",
  80         "i586",            "pentium",
  81         "i686",            "pentiumpro",
  82         "corei7",          "nehalem",
  83         "win32",           "windows-32",
  84         "win64",           "windows-64",
  85         "power macintosh", "ppc",
  86         "armeabi",         "arm",
  87         "v7a",             "armv7a",
  88         "gcc",             "gnu",
  89         "mingw",           "windows-gnu",
  90         0
  91 };
  92
  93 }
  94
  95 Architecture::Architecture(Builder &b, const string &spec):
  96         builder(b),
  97         bits(0),
  98         native(false)
  99 {
 100         if(spec.empty())
 101         {
 102                 parse_specification(get_system_type());
 103                 // We really only want to set type for the default arch
 104                 cpu.clear();
 105                 bits = sizeof(void *)*numeric_limits<unsigned char>::digits;
 106                 native = true;
 107         }
 108         else
 109         {
 110                 parse_specification(spec);
 111                 const Architecture &native_arch = builder.get_native_arch();
 112                 if(type.empty())
 113                         type = native_arch.type;
 114                 if(system.empty())
 115                         system = native_arch.system;
 116                 if(!bits)
 117                 {
 118                         if(type==native_arch.type)
 119                                 bits = native_arch.bits;
 120                         else
 121                                 bits = 32;
 122                 }
 123
 124                 if(type!=native_arch.type || system!=native_arch.system)
 125                         cross_prefix = format("%s-%s", type, system);
 126                 else if(bits==native_arch.bits)
 127                         native = true;
 128         }
 129
 130         if(toolchain.empty())
 131         {
 132                 if((system=="darwin" || system=="freebsd") && builder.get_vfs().find_binary("clang"))
 133                         toolchain = "clang";
 134                 else
 135                         toolchain = "gnu";
 136         }
 137
 138         name = type;
 139         if(!cpu.empty())
 140                 name += format("-%s", cpu);
 141         if(!fpu.empty())
 142                 name += format("-%s", fpu);
 143         name += format("-%d-%s-%s", bits, system, toolchain);
 144
 145         add_pattern<ObjectFile>("%.o");
 146         if(system=="windows")
 147         {
 148                 add_pattern<SharedLibrary>("%.dll");
 149                 add_pattern<SharedLibrary>("lib%.dll");
 150                 add_pattern<ImportLibrary>("lib%.dll.a");
 151                 add_pattern<StaticLibrary>("lib%.a");
 152                 add_pattern<StaticLibrary>("%.lib");
 153                 add_pattern<Executable>("%.exe");
 154         }
 155         else
 156         {
 157                 if(system=="darwin")
 158                         add_pattern<SharedLibrary>("lib%.dylib");
 159                 else
 160                         add_pattern<SharedLibrary>("lib%.so");
 161                 add_pattern<StaticLibrary>("lib%.a");
 162                 add_pattern<Executable>("%");
 163         }
 164 }
 165
 166 bool Architecture::match_name(const string &pattern) const
 167 {
 168         bool negate = (pattern[0]=='!');
 169         vector<string> parts = split(pattern.substr(negate), "-");
 170         resolve_aliases(parts);
 171         for(vector<string>::const_iterator i=parts.begin(); i!=parts.end(); ++i)
 172         {
 173                 if((*i=="32" && bits==32) || (*i=="64" && bits==64))
 174                         ;
 175                 else if(*i!=type && *i!=cpu && *i!=fpu && *i!=system && *i!=toolchain)
 176                         return negate;
 177         }
 178         return !negate;
 179 }
 180
 181 string Architecture::best_match(const vector<string> &names) const
 182 {
 183         string best;
 184         unsigned best_size = 0;
 185         for(vector<string>::const_iterator i=names.begin(); i!=names.end(); ++i)
 186                 if(match_name(*i))
 187                 {
 188                         /* TODO Do full parse and alias resolution here?  Otherwise x86 and
 189                         x86_64 are treated as equally good, even though the latter is more
 190                         specific. */
 191                         unsigned size = 1;
 192                         for(string::const_iterator j=i->begin(); j!=i->end(); ++j)
 193                                 size += (*j=='-');
 194
 195                         if(size>best_size)
 196                         {
 197                                 best = *i;
 198                                 best_size = size;
 199                         }
 200                 }
 201
 202         return best;
 203 }
 204
 205 template<typename T>
 206 void Architecture::add_pattern(const string &pat)
 207 {
 208         filename_patterns[typeid(T).name()].push_back(Pattern(pat));
 209 }
 210
 211 void Architecture::resolve_aliases(vector<string> &parts)
 212 {
 213         for(unsigned i=0; i<parts.size(); ++i)
 214         {
 215                 const string &part = parts[i];
 216                 const char *replace = 0;
 217                 for(unsigned j=0; (!replace && aliases[j]); j+=2)
 218                         if(part==aliases[j])
 219                                 replace = aliases[j+1];
 220
 221                 if(replace)
 222                 {
 223                         bool has_dash = false;
 224                         for(const char *c=replace; (!has_dash && *c); ++c)
 225                                 has_dash = (*c=='-');
 226
 227                         if(has_dash)
 228                         {
 229                                 vector<string> rparts = split(replace, "-");
 230                                 parts[i] = rparts[0];
 231                                 parts.insert(parts.begin()+i+1, rparts.begin()+1, rparts.end());
 232                                 i += rparts.size()-1;
 233                         }
 234                         else
 235                                 parts[i] = replace;
 236                 }
 237         }
 238 }
 239
 240 void Architecture::parse_specification(const string &spec)
 241 {
 242         vector<string> parts = split(spec, "-");
 243         resolve_aliases(parts);
 244         for(vector<string>::const_iterator i=parts.begin(); i!=parts.end(); ++i)
 245         {
 246                 bool ok = false;
 247
 248                 for(unsigned j=0; (!ok && types[j]); ++j)
 249                         if(*i==types[j])
 250                         {
 251                                 if(!type.empty() && *i!=type)
 252                                         throw invalid_argument("Conflicting type specification");
 253                                 type = *i;
 254                                 ok = true;
 255                         }
 256
 257                 for(unsigned j=0; (!ok && cpus[j]); j+=2)
 258                         if(*i==cpus[j])
 259                         {
 260                                 if(type.empty())
 261                                         type = cpus[j+1];
 262                                 else if(cpus[j+1]!=type)
 263                                         throw invalid_argument("Conflicting CPU specification");
 264                                 cpu = *i;
 265                                 ok = true;
 266                         }
 267
 268                 for(unsigned j=0; (!ok && fpus[j]); j+=2)
 269                         if(*i==fpus[j])
 270                         {
 271                                 if(fpus[j+1]!=type)
 272                                         throw invalid_argument("Conflicting FPU specification");
 273                                 fpu = *i;
 274                                 ok = true;
 275                         }
 276
 277                 for(unsigned j=0; (!ok && systems[j]); ++j)
 278                         if(*i==systems[j])
 279                         {
 280                                 system = *i;
 281                                 ok = true;
 282                         }
 283
 284                 for(unsigned j=0; (!ok && toolchains[j]); ++j)
 285                         if(*i==toolchains[j])
 286                         {
 287                                 toolchain = *i;
 288                                 ok = true;
 289                         }
 290
 291                 if(!ok && (*i=="32" || *i=="64"))
 292                 {
 293                         bits = lexical_cast<unsigned>(*i);
 294                         ok = true;
 295                 }
 296
 297                 if(!ok)
 298                         throw invalid_argument("Unrecognized part in arch specification: "+*i);
 299         }
 300 }
 301
 302
 303 Architecture::Loader::Loader(Architecture &a):
 304         DataFile::ObjectLoader<Architecture>(a)
 305 {
 306         add("prefix", &Architecture::cross_prefix);
 307 }