source/architecture.cpp

   1 /* $Id$
   2
   3 This file is part of builder
   4 Copyright © 2007-2010  Mikko Rasa, Mikkosoft Productions
   5 Distributed under the LGPL
   6 */
   7
   8 #include <limits>
   9 #ifndef WIN32
  10 #include <sys/utsname.h>
  11 #endif
  12 #include <msp/strings/formatter.h>
  13 #include <msp/strings/utils.h>
  14 #include "architecture.h"
  15 #include "builder.h"
  16
  17 using namespace std;
  18 using namespace Msp;
  19
  20 namespace {
  21
  22 const char *types[] =
  23 {
  24         "pc",
  25         "arm",
  26         0
  27 };
  28
  29 const char *cpus[] =
  30 {
  31         "i386",       "pc",
  32         "i486",       "pc",
  33         "pentium",    "pc",
  34         "pentiumpro", "pc",
  35         "pentium2",   "pc",
  36         "pentium3",   "pc",
  37         "pentium4",   "pc",
  38         "core2",      "pc",
  39         "k6",         "pc",
  40         "athlon",     "pc",
  41         "athlonxp",   "pc",
  42         "athlon64",   "pc",
  43         "armv5",      "arm",
  44         0
  45 };
  46
  47 const char *systems[] =
  48 {
  49         "linux",
  50         "freebsd",
  51         "windows",
  52         0
  53 };
  54
  55 const char *aliases[] =
  56 {
  57         "i586",  "pentium",
  58         "i686",  "pentiumpro",
  59         "win32", "windows",
  60         0
  61 };
  62
  63 }
  64
  65 Architecture::Architecture(Builder &b, const string &spec):
  66         builder(b),
  67         bits(0),
  68         native(false)
  69 {
  70         if(spec.empty())
  71         {
  72 #ifdef WIN32
  73                 system = "windows";
  74 #else
  75                 utsname un;
  76                 if(uname(&un)==0)
  77                 {
  78                         system = tolower(un.sysname);
  79                         parse_specification(tolower(un.machine));
  80                         // We really only want to set type for the default arch
  81                         cpu.clear();
  82                 }
  83 #endif
  84                 bits = sizeof(void *)*numeric_limits<unsigned char>::digits;
  85                 native = true;
  86         }
  87         else
  88         {
  89                 parse_specification(spec);
  90                 const Architecture &native_arch = builder.get_native_arch();
  91                 if(type.empty())
  92                         type = native_arch.type;
  93                 if(cpu.empty())
  94                         cpu = native_arch.cpu;
  95                 if(system.empty())
  96                         system = native_arch.system;
  97                 if(!bits)
  98                 {
  99                         if(type==native_arch.type)
 100                                 bits = native_arch.bits;
 101                         else
 102                                 bits = 32;
 103                 }
 104
 105                 if(type!=native_arch.type || system!=native_arch.system)
 106                         cross_prefix = format("%s-%s", type, system);
 107                 else if(bits!=native_arch.bits)
 108                 {
 109                         build_info.cflags.push_back(format("-m%d", bits));
 110                         build_info.ldflags.push_back(format("-m%d", bits));
 111                 }
 112                 else
 113                         native = true;
 114
 115                 if(!cpu.empty())
 116                         build_info.cflags.push_back(format("-march=%s", cpu));
 117         }
 118         name = type;
 119         if(!cpu.empty())
 120                 name += format("-%s", cpu);
 121         name += format("-%d-%s", bits, system);
 122 }
 123
 124 void Architecture::set_tool(const string &t, const string &p)
 125 {
 126         tools[t] = p;
 127 }
 128
 129 void Architecture::set_cross_prefix(const string &p)
 130 {
 131         cross_prefix = p;
 132 }
 133
 134 std::string Architecture::get_tool(const string &t) const
 135 {
 136         StringMap::const_iterator i = tools.find(t);
 137         if(i!=tools.end())
 138         {
 139                 if(i->second[0]=='-')
 140                         return cross_prefix+i->second;
 141                 else
 142                         return i->second;
 143         }
 144
 145         const Architecture &native_arch = builder.get_native_arch();
 146         if(this!=&native_arch)
 147         {
 148                 if(!cross_prefix.empty())
 149                         return cross_prefix+"-"+native_arch.get_tool(t);
 150                 else
 151                         return native_arch.get_tool(t);
 152         }
 153         else
 154                 throw KeyError("Unknown tool", t);
 155 }
 156
 157 bool Architecture::match_name(const string &pattern) const
 158 {
 159         vector<string> parts = split(pattern, "-");
 160         for(vector<string>::const_iterator i=parts.begin(); i!=parts.end(); ++i)
 161         {
 162                 string part = resolve_alias(*i);
 163                 if(part!=type && part!=cpu && part!=system)
 164                         return false;
 165         }
 166         return true;
 167 }
 168
 169 string Architecture::resolve_alias(const string &part) const
 170 {
 171         for(unsigned j=0; aliases[j]; j+=2)
 172                 if(part==aliases[j])
 173                         return aliases[j+1];
 174
 175         return part;
 176 }
 177
 178 void Architecture::parse_specification(const string &spec)
 179 {
 180         vector<string> parts = split(spec, "-");
 181         for(vector<string>::const_iterator i=parts.begin(); i!=parts.end(); ++i)
 182         {
 183                 string part = resolve_alias(*i);
 184
 185                 bool ok = false;
 186
 187                 for(unsigned j=0; (!ok && types[j]); ++j)
 188                         if(part==types[j])
 189                         {
 190                                 if(!type.empty() && part!=type)
 191                                         throw InvalidParameterValue("Conflicting type specification");
 192                                 type = part;
 193                                 ok = true;
 194                         }
 195
 196                 for(unsigned j=0; (!ok && cpus[j]); j+=2)
 197                         if(part==cpus[j])
 198                         {
 199                                 if(type.empty())
 200                                         type = cpus[j+1];
 201                                 else if(cpus[j+1]!=type)
 202                                         throw InvalidParameterValue("Conflicting CPU specification");
 203                                 cpu = part;
 204                                 ok = true;
 205                         }
 206
 207                 for(unsigned j=0; (!ok && systems[j]); ++j)
 208                         if(part==systems[j])
 209                         {
 210                                 system = part;
 211                                 ok = true;
 212                         }
 213
 214                 if(!ok && (part=="32" || part=="64"))
 215                 {
 216                         bits = lexical_cast<unsigned>(part);
 217                         ok = true;
 218                 }
 219
 220                 if(!ok)
 221                         throw InvalidParameterValue("Unrecognized part in arch specification: "+*i);
 222         }
 223 }
 224
 225
 226 Architecture::Loader::Loader(Architecture &a):
 227         arch(a)
 228 {
 229         add("prefix", &Architecture::cross_prefix);
 230         add("tool",   &Loader::tool);
 231 }
 232
 233 void Architecture::Loader::tool(const string &t, const string &p)
 234 {
 235         arch.tools[t] = p;
 236 }