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 {
  33         if(tag=="CC")
  34         {
  35                 input_suffixes.push_back(".c");
  36                 aux_suffixes.push_back(".h");
  37         }
  38         else if(tag=="CXX")
  39         {
  40                 input_suffixes.push_back(".cpp");
  41                 input_suffixes.push_back(".cc");
  42                 aux_suffixes.push_back(".hpp");
  43         }
  44         else if(tag=="OBJC")
  45         {
  46                 input_suffixes.push_back(".m");
  47                 build_info.libs.push_back("objc");
  48         }
  49         else
  50                 throw invalid_argument("GnuCompiler::GnuCompiler");
  51
  52         set_command((tag=="CXX" ? "g++" : "gcc"), true);
  53         set_run(_run);
  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(ToolData &tool) const
 106 {
 107         tool.extra_data = 0U;
 108         prepare_syspath(tool);
 109         prepare_version(tool);
 110 }
 111
 112 void GnuCompiler::prepare_syspath(ToolData &tool) const
 113 {
 114         bool path_found = false;
 115         const FS::Path &sysroot = tool.build_info.sysroot;
 116         const std::string &tool_tag = static_cast<Tool &>(tool).get_tag();
 117
 118         const FileTarget *exe = static_cast<Tool &>(tool).get_executable();
 119         if(exe)
 120         {
 121                 ExternalTask::Arguments argv;
 122                 argv.push_back(exe->get_path().str());
 123                 argv.push_back("-Wp,-v");
 124                 argv.push_back("-E");
 125                 if(tag=="CXX")
 126                         argv.push_back("-xc++");
 127                 if(!sysroot.empty())
 128                         argv.push_back("--sysroot="+sysroot.str());
 129                 argv.push_back("-");
 130
 131                 builder.get_logger().log("auxcommands", "Running %s", join(argv.begin(), argv.end()));
 132                 try
 133                 {
 134                         string output = ExternalTask::run_and_capture_output(argv, FS::Path(), true);
 135                         string::size_type start = 0;
 136                         bool record_path = false;
 137                         while(start<output.size())
 138                         {
 139                                 string::size_type newline = output.find('\n', start);
 140                                 if(!output.compare(start, 34, "#include <...> search starts here:"))
 141                                 {
 142                                         record_path = true;
 143                                         path_found = true;
 144                                 }
 145                                 else if(!output.compare(start, 19, "End of search list."))
 146                                         record_path = false;
 147                                 else if(record_path)
 148                                 {
 149                                         FS::Path path = strip(output.substr(start, newline-start));
 150                                         builder.get_logger().log("tools", "Got %s system path: %s", tool_tag, path);
 151                                         tool.system_path.push_back(path);
 152                                 }
 153                                 start = newline+1;
 154                         }
 155                 }
 156                 catch(const runtime_error &)
 157                 { }
 158         }
 159
 160         if(!path_found)
 161         {
 162                 builder.get_logger().log("tools", "No %s system path found, using defaults", tool_tag);
 163                 const Architecture &arch = *static_cast<Tool &>(tool).get_architecture();
 164                 if(!sysroot.empty())
 165                         tool.system_path.push_back(sysroot/"usr/include");
 166                 else if(arch.is_native())
 167                         tool.system_path.push_back("/usr/include");
 168                 else
 169                         tool.system_path.push_back(format("/usr/%s/include", arch.get_cross_prefix()));
 170         }
 171 }
 172
 173 void GnuCompiler::prepare_version(ToolData &tool) const
 174 {
 175         const FileTarget *exe = static_cast<Tool &>(tool).get_executable();
 176         if(!exe)
 177                 return;
 178
 179         string exe_path = exe->get_path().str();
 180         unsigned version = query_version(exe_path, "-dumpversion");
 181         if(version>=0x70000)
 182         {
 183                 unsigned v = query_version(exe_path, "-dumpfullversion");
 184                 if(v)
 185                         version = v;
 186         }
 187         tool.extra_data = version;
 188         builder.get_logger().log("tools", "%s version is %d.%d.%d", FS::basename(exe->get_path()), version>>16, (version>>8)&0xFF, version&0xFF);
 189 }
 190
 191 unsigned GnuCompiler::query_version(const string &exe_path, const string &arg) const
 192 {
 193         ExternalTask::Arguments argv;
 194         argv.push_back(exe_path);
 195         argv.push_back(arg);
 196
 197         builder.get_logger().log("auxcommands", "Running %s", join(argv.begin(), argv.end()));
 198         try
 199         {
 200                 string version_str = strip(ExternalTask::run_and_capture_output(argv));
 201
 202                 vector<string> version_parts = split(version_str, '.');
 203                 unsigned ver = 0;
 204                 for(unsigned i=0; (i<3 && i<version_parts.size()); ++i)
 205                         ver |= lexical_cast<unsigned>(version_parts[i])<<(16-8*i);
 206                 return ver;
 207         }
 208         catch(const runtime_error &)
 209         { }
 210
 211         return 0;
 212 }
 213
 214 Task *GnuCompiler::_run(const ObjectFile &object)
 215 {
 216         const Tool &tool = *object.get_tool();
 217         const Architecture &arch = *tool.get_architecture();
 218
 219         ExternalTask::Arguments argv;
 220         argv.push_back(tool.get_executable()->get_path().str());
 221         argv.push_back("-c");
 222
 223         BuildInfo binfo;
 224         object.collect_build_info(binfo);
 225
 226         const std::string &tool_tag = tool.get_tag();
 227         string tag_for_std = (tool_tag=="OBJC" ? "CC" : tool_tag);
 228         if(binfo.standards.count(tag_for_std))
 229                 argv.push_back("-std="+get_item(binfo.standards, tag_for_std).str());
 230         if(tool_tag=="OBJC" && binfo.standards.count(tool_tag))
 231                 argv.push_back("-fobjc-std="+get_item(binfo.standards, tool_tag).str());
 232
 233         if(binfo.warning_level>=1)
 234         {
 235                 argv.push_back("-Wall");
 236                 if(binfo.warning_level>=2)
 237                 {
 238                         argv.push_back("-Wextra");
 239                         argv.push_back("-Wundef");
 240                         unsigned version = tool.get_extra_data();
 241                         if(version>=0x80000)
 242                                 argv.push_back("-Wno-cast-function-type");
 243                 }
 244                 if(binfo.warning_level>=3)
 245                 {
 246                         argv.push_back("-pedantic");
 247                         argv.push_back("-Wno-long-long");
 248                         argv.push_back("-Wshadow");
 249                         if(tool_tag=="CC")
 250                         {
 251                                 argv.push_back("-Wc++-compat");
 252                                 argv.push_back("-Wstrict-prototypes");
 253                         }
 254                 }
 255                 if(binfo.warning_level>=4)
 256                 {
 257                         // Some truly paranoid warnings
 258                         argv.push_back("-Wstrict-overflow=4");
 259                         argv.push_back("-Wfloat-equal");
 260                         argv.push_back("-Wconversion");
 261                         argv.push_back("-Wwrite-strings");
 262                         argv.push_back("-Winline");
 263                 }
 264                 if(binfo.fatal_warnings)
 265                 {
 266                         argv.push_back("-Werror");
 267                         argv.push_back("-Wno-error=deprecated-declarations");
 268                 }
 269         }
 270
 271         const FS::Path &sysroot = binfo.sysroot;
 272         if(!sysroot.empty())
 273                 argv.push_back("--sysroot="+sysroot.str());
 274         for(const FS::Path &p: binfo.local_incpath)
 275         {
 276                 argv.push_back("-iquote");
 277                 argv.push_back(p.str());
 278         }
 279         for(const FS::Path &p: binfo.incpath)
 280                 argv.push_back("-I"+p.str());
 281
 282         for(const auto &kvp: binfo.defines)
 283         {
 284                 if(kvp.second.empty())
 285                         argv.push_back(format("-D%s", kvp.first));
 286                 else
 287                         argv.push_back(format("-D%s=%s", kvp.first, kvp.second));
 288         }
 289
 290         if(binfo.debug)
 291                 argv.push_back("-ggdb");
 292         if(binfo.optimize)
 293         {
 294                 if(binfo.optimize<0)
 295                         argv.push_back("-Os");
 296                 else
 297                         argv.push_back(format("-O%d", binfo.optimize));
 298                 if(binfo.debug)
 299                         argv.push_back("-fno-omit-frame-pointer");
 300         }
 301         if(binfo.threads && arch.get_system()!="windows" && arch.get_system()!="darwin")
 302                 argv.push_back("-pthread");
 303         if(object.is_used_in_shared_library() && arch.get_system()!="windows")
 304                 argv.push_back("-fPIC");
 305
 306         if((arch.get_type()=="x86" || arch.get_type()=="ppc") && !arch.is_native())
 307                 argv.push_back(format("-m%d", arch.get_bits()));
 308
 309         string cpu = arch.get_cpu();
 310         if(!cpu.empty())
 311         {
 312                 for(unsigned i=0; cpus[i]; i+=2)
 313                         if(cpu==cpus[i])
 314                         {
 315                                 cpu = cpus[i+1];
 316                                 break;
 317                         }
 318                 argv.push_back("-march="+cpu);
 319         }
 320
 321         if(!arch.get_fpu().empty())
 322         {
 323                 if(arch.get_type()=="x86")
 324                 {
 325                         if(arch.get_fpu()=="387")
 326                                 argv.push_back("-mfpmath=387");
 327                         else if(!arch.get_fpu().compare(0, 3, "sse"))
 328                                 argv.push_back("-mfpmath=sse");
 329
 330                         if(arch.get_fpu()=="sse")
 331                                 argv.push_back("-msse2");
 332                         else if(arch.get_fpu()=="sse3")
 333                                 argv.push_back("-msse3");
 334                         else if(arch.get_fpu()=="sse4.1")
 335                                 argv.push_back("-msse4.1");
 336                 }
 337                 else if(arch.get_type()=="arm")
 338                 {
 339                         argv.push_back("-mfpu="+arch.get_fpu());
 340                         argv.push_back("-mfloat-abi=softfp");
 341                 }
 342         }
 343
 344         FS::Path obj_path = object.get_path();
 345         FS::Path src_path = object.get_source().get_path();
 346         FS::Path work_dir = object.get_component()->get_package().get_source_directory();
 347
 348         argv.push_back("-o");
 349         argv.push_back(relative(obj_path, work_dir).str());
 350         argv.push_back(relative(src_path, work_dir).str());
 351
 352         return new ExternalTask(argv, work_dir);
 353 }