source/gnucompiler.cpp

   1 #include <msp/core/maputils.h>
   2 #include <msp/fs/utils.h>
   3 #include <msp/strings/format.h>
   4 #include <msp/strings/utils.h>
   5 #include "architecture.h"
   6 #include "builder.h"
   7 #include "component.h"
   8 #include "csourcefile.h"
   9 #include "externaltask.h"
  10 #include "gnucompiler.h"
  11 #include "objcsourcefile.h"
  12 #include "objectfile.h"
  13 #include "sourcefile.h"
  14 #include "sourcepackage.h"
  15
  16 using namespace std;
  17 using namespace Msp;
  18
  19 namespace {
  20
  21 const char *cpus[] =
  22 {
  23         "athlonxp", "athlon-xp",
  24         "armv7a",   "armv7-a",
  25         0
  26 };
  27
  28 }
  29
  30 GnuCompiler::GnuCompiler(Builder &b, const Architecture &a, const string &t):
  31         Tool(b, a, t),
  32         version(0)
  33 {
  34         if(tag=="CC")
  35         {
  36                 input_suffixes.push_back(".c");
  37                 aux_suffixes.push_back(".h");
  38         }
  39         else if(tag=="CXX")
  40         {
  41                 input_suffixes.push_back(".cpp");
  42                 input_suffixes.push_back(".cc");
  43                 aux_suffixes.push_back(".hpp");
  44         }
  45         else if(tag=="OBJC")
  46         {
  47                 input_suffixes.push_back(".m");
  48                 build_info.libs.push_back("objc");
  49         }
  50         else
  51                 throw invalid_argument("GnuCompiler::GnuCompiler");
  52
  53         set_command((tag=="CXX" ? "g++" : "gcc"), true);
  54 }
  55
  56 Target *GnuCompiler::create_source(const Component &comp, const FS::Path &path) const
  57 {
  58         if(tag=="OBJC")
  59                 return new ObjCSourceFile(builder, comp, path);
  60         else
  61                 return new CSourceFile(builder, comp, path);
  62 }
  63
  64 Target *GnuCompiler::create_source(const FS::Path &path) const
  65 {
  66         if(tag=="OBJC")
  67                 return new ObjCSourceFile(builder, path);
  68         else
  69                 return new CSourceFile(builder, path);
  70 }
  71
  72 Target *GnuCompiler::create_target(const vector<Target *> &sources, const string &)
  73 {
  74         if(sources.size()!=1)
  75                 throw invalid_argument("GnuCompiler::create_target");
  76         SourceFile &source = dynamic_cast<SourceFile &>(*sources.front());
  77         ObjectFile *obj = new ObjectFile(builder, *source.get_component(), source);
  78         obj->set_tool(*this);
  79         return obj;
  80 }
  81
  82 string GnuCompiler::create_build_signature(const BuildInfo &binfo) const
  83 {
  84         if(!executable)
  85                 return string();
  86
  87         string result = Tool::create_build_signature(binfo);
  88         if(!architecture->get_cpu().empty())
  89         {
  90                 result += ",m";
  91                 result += architecture->get_cpu();
  92         }
  93         if(binfo.debug || binfo.optimize)
  94                 result += ',';
  95         if(binfo.debug)
  96                 result += 'g';
  97         if(binfo.optimize)
  98         {
  99                 result += 'O';
 100                 result += (binfo.optimize>0 ? '0'+binfo.optimize : 's');
 101         }
 102         return result;
 103 }
 104
 105 void GnuCompiler::do_prepare()
 106 {
 107         executable = builder.get_vfs().find_binary(command);
 108         prepare_syspath();
 109         prepare_version();
 110 }
 111
 112 void GnuCompiler::prepare_syspath()
 113 {
 114         bool path_found = false;
 115         const FS::Path &sysroot = build_info.sysroot;
 116
 117         if(executable)
 118         {
 119                 ExternalTask::Arguments argv;
 120                 argv.push_back(executable->get_path().str());
 121                 argv.push_back("-Wp,-v");
 122                 argv.push_back("-E");
 123                 if(tag=="CXX")
 124                         argv.push_back("-xc++");
 125                 if(!sysroot.empty())
 126                         argv.push_back("--sysroot="+sysroot.str());
 127                 argv.push_back("-");
 128
 129                 builder.get_logger().log("auxcommands", "Running %s", join(argv.begin(), argv.end()));
 130                 try
 131                 {
 132                         string output = ExternalTask::run_and_capture_output(argv, FS::Path(), true);
 133                         string::size_type start = 0;
 134                         bool record_path = false;
 135                         while(start<output.size())
 136                         {
 137                                 string::size_type newline = output.find('\n', start);
 138                                 if(!output.compare(start, 34, "#include <...> search starts here:"))
 139                                 {
 140                                         record_path = true;
 141                                         path_found = true;
 142                                 }
 143                                 else if(!output.compare(start, 19, "End of search list."))
 144                                         record_path = false;
 145                                 else if(record_path)
 146                                 {
 147                                         FS::Path path = strip(output.substr(start, newline-start));
 148                                         builder.get_logger().log("tools", "Got %s system path: %s", tag, path);
 149                                         system_path.push_back(path);
 150                                 }
 151                                 start = newline+1;
 152                         }
 153                 }
 154                 catch(const runtime_error &)
 155                 { }
 156         }
 157
 158         if(!path_found)
 159         {
 160                 builder.get_logger().log("tools", "No %s system path found, using defaults", tag);
 161                 if(!sysroot.empty())
 162                         system_path.push_back(sysroot/"usr/include");
 163                 else if(architecture->is_native())
 164                         system_path.push_back("/usr/include");
 165                 else
 166                         system_path.push_back(format("/usr/%s/include", architecture->get_cross_prefix()));
 167         }
 168 }
 169
 170 void GnuCompiler::prepare_version()
 171 {
 172         if(!executable)
 173                 return;
 174
 175         prepare_version("-dumpversion");
 176         if(version>=0x70000)
 177                 prepare_version("-dumpfullversion");
 178         builder.get_logger().log("tools", "%s version is %d.%d.%d", FS::basename(executable->get_path()), version>>16, (version>>8)&0xFF, version&0xFF);
 179 }
 180
 181 void GnuCompiler::prepare_version(const string &arg)
 182 {
 183         ExternalTask::Arguments argv;
 184         argv.push_back(executable->get_path().str());
 185         argv.push_back(arg);
 186
 187         builder.get_logger().log("auxcommands", "Running %s", join(argv.begin(), argv.end()));
 188         try
 189         {
 190                 string version_str = strip(ExternalTask::run_and_capture_output(argv));
 191
 192                 vector<string> version_parts = split(version_str, '.');
 193                 version = 0;
 194                 for(unsigned i=0; (i<3 && i<version_parts.size()); ++i)
 195                         version |= lexical_cast<unsigned>(version_parts[i])<<(16-8*i);
 196         }
 197         catch(const runtime_error &)
 198         { }
 199 }
 200
 201 Task *GnuCompiler::run(const Target &target) const
 202 {
 203         const ObjectFile &object = dynamic_cast<const ObjectFile &>(target);
 204
 205         ExternalTask::Arguments argv;
 206         argv.push_back(executable->get_path().str());
 207         argv.push_back("-c");
 208
 209         BuildInfo binfo;
 210         target.collect_build_info(binfo);
 211
 212         string tag_for_std = (tag=="OBJC" ? "CC" : tag);
 213         if(binfo.standards.count(tag_for_std))
 214                 argv.push_back("-std="+get_item(binfo.standards, tag_for_std).str());
 215         if(tag=="OBJC" && binfo.standards.count(tag))
 216                 argv.push_back("-fobjc-std="+get_item(binfo.standards, tag).str());
 217
 218         if(binfo.warning_level>=1)
 219         {
 220                 argv.push_back("-Wall");
 221                 if(binfo.warning_level>=2)
 222                 {
 223                         argv.push_back("-Wextra");
 224                         argv.push_back("-Wundef");
 225                         if(version>=0x80000)
 226                                 argv.push_back("-Wno-cast-function-type");
 227                 }
 228                 if(binfo.warning_level>=3)
 229                 {
 230                         argv.push_back("-pedantic");
 231                         argv.push_back("-Wno-long-long");
 232                         argv.push_back("-Wshadow");
 233                         if(tag=="CC")
 234                         {
 235                                 argv.push_back("-Wc++-compat");
 236                                 argv.push_back("-Wstrict-prototypes");
 237                         }
 238                 }
 239                 if(binfo.warning_level>=4)
 240                 {
 241                         // Some truly paranoid warnings
 242                         argv.push_back("-Wstrict-overflow=4");
 243                         argv.push_back("-Wfloat-equal");
 244                         argv.push_back("-Wconversion");
 245                         argv.push_back("-Wwrite-strings");
 246                         argv.push_back("-Winline");
 247                 }
 248                 if(binfo.fatal_warnings)
 249                 {
 250                         argv.push_back("-Werror");
 251                         argv.push_back("-Wno-error=deprecated-declarations");
 252                 }
 253         }
 254
 255         const FS::Path &sysroot = binfo.sysroot;
 256         if(!sysroot.empty())
 257                 argv.push_back("--sysroot="+sysroot.str());
 258         for(const FS::Path &p: binfo.local_incpath)
 259         {
 260                 argv.push_back("-iquote");
 261                 argv.push_back(p.str());
 262         }
 263         for(const FS::Path &p: binfo.incpath)
 264                 argv.push_back("-I"+p.str());
 265
 266         for(const auto &kvp: binfo.defines)
 267         {
 268                 if(kvp.second.empty())
 269                         argv.push_back(format("-D%s", kvp.first));
 270                 else
 271                         argv.push_back(format("-D%s=%s", kvp.first, kvp.second));
 272         }
 273
 274         if(binfo.debug)
 275                 argv.push_back("-ggdb");
 276         if(binfo.optimize)
 277         {
 278                 if(binfo.optimize<0)
 279                         argv.push_back("-Os");
 280                 else
 281                         argv.push_back(format("-O%d", binfo.optimize));
 282                 if(binfo.debug)
 283                         argv.push_back("-fno-omit-frame-pointer");
 284         }
 285         if(binfo.threads && architecture->get_system()!="windows" && architecture->get_system()!="darwin")
 286                 argv.push_back("-pthread");
 287         if(object.is_used_in_shared_library() && architecture->get_system()!="windows")
 288                 argv.push_back("-fPIC");
 289
 290         if((architecture->get_type()=="x86" || architecture->get_type()=="ppc") && !architecture->is_native())
 291                 argv.push_back(format("-m%d", architecture->get_bits()));
 292
 293         string cpu = architecture->get_cpu();
 294         if(!cpu.empty())
 295         {
 296                 for(unsigned i=0; cpus[i]; i+=2)
 297                         if(cpu==cpus[i])
 298                         {
 299                                 cpu = cpus[i+1];
 300                                 break;
 301                         }
 302                 argv.push_back("-march="+cpu);
 303         }
 304
 305         if(!architecture->get_fpu().empty())
 306         {
 307                 if(architecture->get_type()=="x86")
 308                 {
 309                         if(architecture->get_fpu()=="387")
 310                                 argv.push_back("-mfpmath=387");
 311                         else if(!architecture->get_fpu().compare(0, 3, "sse"))
 312                                 argv.push_back("-mfpmath=sse");
 313
 314                         if(architecture->get_fpu()=="sse")
 315                                 argv.push_back("-msse2");
 316                         else if(architecture->get_fpu()=="sse3")
 317                                 argv.push_back("-msse3");
 318                         else if(architecture->get_fpu()=="sse4.1")
 319                                 argv.push_back("-msse4.1");
 320                 }
 321                 else if(architecture->get_type()=="arm")
 322                 {
 323                         argv.push_back("-mfpu="+architecture->get_fpu());
 324                         argv.push_back("-mfloat-abi=softfp");
 325                 }
 326         }
 327
 328         FS::Path obj_path = object.get_path();
 329         FS::Path src_path = object.get_source().get_path();
 330         FS::Path work_dir = object.get_component()->get_package().get_source_directory();
 331
 332         argv.push_back("-o");
 333         argv.push_back(relative(obj_path, work_dir).str());
 334         argv.push_back(relative(src_path, work_dir).str());
 335
 336         return new ExternalTask(argv, work_dir);
 337 }