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         set_run(_run);
  55 }
  56
  57 Target *GnuCompiler::create_source(const Component &comp, const FS::Path &path) const
  58 {
  59         if(tag=="OBJC")
  60                 return new ObjCSourceFile(builder, comp, path);
  61         else
  62                 return new CSourceFile(builder, comp, path);
  63 }
  64
  65 Target *GnuCompiler::create_source(const FS::Path &path) const
  66 {
  67         if(tag=="OBJC")
  68                 return new ObjCSourceFile(builder, path);
  69         else
  70                 return new CSourceFile(builder, path);
  71 }
  72
  73 Target *GnuCompiler::create_target(const vector<Target *> &sources, const string &)
  74 {
  75         if(sources.size()!=1)
  76                 throw invalid_argument("GnuCompiler::create_target");
  77         SourceFile &source = dynamic_cast<SourceFile &>(*sources.front());
  78         ObjectFile *obj = new ObjectFile(builder, *source.get_component(), source);
  79         obj->set_tool(*this);
  80         return obj;
  81 }
  82
  83 string GnuCompiler::create_build_signature(const BuildInfo &binfo) const
  84 {
  85         if(!executable)
  86                 return string();
  87
  88         string result = Tool::create_build_signature(binfo);
  89         if(!architecture->get_cpu().empty())
  90         {
  91                 result += ",m";
  92                 result += architecture->get_cpu();
  93         }
  94         if(binfo.debug || binfo.optimize)
  95                 result += ',';
  96         if(binfo.debug)
  97                 result += 'g';
  98         if(binfo.optimize)
  99         {
 100                 result += 'O';
 101                 result += (binfo.optimize>0 ? '0'+binfo.optimize : 's');
 102         }
 103         return result;
 104 }
 105
 106 void GnuCompiler::do_prepare()
 107 {
 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 ObjectFile &object)
 202 {
 203         const GnuCompiler &tool = dynamic_cast<const GnuCompiler &>(*object.get_tool());
 204         const Architecture &arch = *tool.get_architecture();
 205
 206         ExternalTask::Arguments argv;
 207         argv.push_back(tool.get_executable()->get_path().str());
 208         argv.push_back("-c");
 209
 210         BuildInfo binfo;
 211         object.collect_build_info(binfo);
 212
 213         const std::string &tool_tag = tool.get_tag();
 214         string tag_for_std = (tool_tag=="OBJC" ? "CC" : tool_tag);
 215         if(binfo.standards.count(tag_for_std))
 216                 argv.push_back("-std="+get_item(binfo.standards, tag_for_std).str());
 217         if(tool_tag=="OBJC" && binfo.standards.count(tool_tag))
 218                 argv.push_back("-fobjc-std="+get_item(binfo.standards, tool_tag).str());
 219
 220         if(binfo.warning_level>=1)
 221         {
 222                 argv.push_back("-Wall");
 223                 if(binfo.warning_level>=2)
 224                 {
 225                         argv.push_back("-Wextra");
 226                         argv.push_back("-Wundef");
 227                         if(tool.version>=0x80000)
 228                                 argv.push_back("-Wno-cast-function-type");
 229                 }
 230                 if(binfo.warning_level>=3)
 231                 {
 232                         argv.push_back("-pedantic");
 233                         argv.push_back("-Wno-long-long");
 234                         argv.push_back("-Wshadow");
 235                         if(tool_tag=="CC")
 236                         {
 237                                 argv.push_back("-Wc++-compat");
 238                                 argv.push_back("-Wstrict-prototypes");
 239                         }
 240                 }
 241                 if(binfo.warning_level>=4)
 242                 {
 243                         // Some truly paranoid warnings
 244                         argv.push_back("-Wstrict-overflow=4");
 245                         argv.push_back("-Wfloat-equal");
 246                         argv.push_back("-Wconversion");
 247                         argv.push_back("-Wwrite-strings");
 248                         argv.push_back("-Winline");
 249                 }
 250                 if(binfo.fatal_warnings)
 251                 {
 252                         argv.push_back("-Werror");
 253                         argv.push_back("-Wno-error=deprecated-declarations");
 254                 }
 255         }
 256
 257         const FS::Path &sysroot = binfo.sysroot;
 258         if(!sysroot.empty())
 259                 argv.push_back("--sysroot="+sysroot.str());
 260         for(const FS::Path &p: binfo.local_incpath)
 261         {
 262                 argv.push_back("-iquote");
 263                 argv.push_back(p.str());
 264         }
 265         for(const FS::Path &p: binfo.incpath)
 266                 argv.push_back("-I"+p.str());
 267
 268         for(const auto &kvp: binfo.defines)
 269         {
 270                 if(kvp.second.empty())
 271                         argv.push_back(format("-D%s", kvp.first));
 272                 else
 273                         argv.push_back(format("-D%s=%s", kvp.first, kvp.second));
 274         }
 275
 276         if(binfo.debug)
 277                 argv.push_back("-ggdb");
 278         if(binfo.optimize)
 279         {
 280                 if(binfo.optimize<0)
 281                         argv.push_back("-Os");
 282                 else
 283                         argv.push_back(format("-O%d", binfo.optimize));
 284                 if(binfo.debug)
 285                         argv.push_back("-fno-omit-frame-pointer");
 286         }
 287         if(binfo.threads && arch.get_system()!="windows" && arch.get_system()!="darwin")
 288                 argv.push_back("-pthread");
 289         if(object.is_used_in_shared_library() && arch.get_system()!="windows")
 290                 argv.push_back("-fPIC");
 291
 292         if((arch.get_type()=="x86" || arch.get_type()=="ppc") && !arch.is_native())
 293                 argv.push_back(format("-m%d", arch.get_bits()));
 294
 295         string cpu = arch.get_cpu();
 296         if(!cpu.empty())
 297         {
 298                 for(unsigned i=0; cpus[i]; i+=2)
 299                         if(cpu==cpus[i])
 300                         {
 301                                 cpu = cpus[i+1];
 302                                 break;
 303                         }
 304                 argv.push_back("-march="+cpu);
 305         }
 306
 307         if(!arch.get_fpu().empty())
 308         {
 309                 if(arch.get_type()=="x86")
 310                 {
 311                         if(arch.get_fpu()=="387")
 312                                 argv.push_back("-mfpmath=387");
 313                         else if(!arch.get_fpu().compare(0, 3, "sse"))
 314                                 argv.push_back("-mfpmath=sse");
 315
 316                         if(arch.get_fpu()=="sse")
 317                                 argv.push_back("-msse2");
 318                         else if(arch.get_fpu()=="sse3")
 319                                 argv.push_back("-msse3");
 320                         else if(arch.get_fpu()=="sse4.1")
 321                                 argv.push_back("-msse4.1");
 322                 }
 323                 else if(arch.get_type()=="arm")
 324                 {
 325                         argv.push_back("-mfpu="+arch.get_fpu());
 326                         argv.push_back("-mfloat-abi=softfp");
 327                 }
 328         }
 329
 330         FS::Path obj_path = object.get_path();
 331         FS::Path src_path = object.get_source().get_path();
 332         FS::Path work_dir = object.get_component()->get_package().get_source_directory();
 333
 334         argv.push_back("-o");
 335         argv.push_back(relative(obj_path, work_dir).str());
 336         argv.push_back(relative(src_path, work_dir).str());
 337
 338         return new ExternalTask(argv, work_dir);
 339 }