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