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 }
  54
  55 Target *GnuCompiler::create_source(const Component &comp, const FS::Path &path) const
  56 {
  57         if(tag=="OBJC")
  58                 return new ObjCSourceFile(builder, comp, path);
  59         else
  60                 return new CSourceFile(builder, comp, path);
  61 }
  62
  63 Target *GnuCompiler::create_source(const FS::Path &path) const
  64 {
  65         if(tag=="OBJC")
  66                 return new ObjCSourceFile(builder, path);
  67         else
  68                 return new CSourceFile(builder, path);
  69 }
  70
  71 Target *GnuCompiler::create_target(const list<Target *> &sources, const string &)
  72 {
  73         if(sources.size()!=1)
  74                 throw invalid_argument("GnuCCompiler::create_target");
  75         SourceFile &source = dynamic_cast<SourceFile &>(*sources.front());
  76         ObjectFile *obj = new ObjectFile(builder, *source.get_component(), source);
  77         obj->set_tool(*this);
  78         return obj;
  79 }
  80
  81 string GnuCompiler::create_build_signature(const BuildInfo &binfo) const
  82 {
  83         string result = FS::basename(executable->get_path());
  84         if(!architecture->get_cpu().empty())
  85         {
  86                 result += ",m";
  87                 result += architecture->get_cpu();
  88         }
  89         result += ',';
  90         if(binfo.debug)
  91                 result += 'g';
  92         if(binfo.optimize)
  93         {
  94                 result += 'O';
  95                 result += (binfo.optimize>0 ? '0'+binfo.optimize : 's');
  96         }
  97         return result;
  98 }
  99
 100 void GnuCompiler::do_prepare()
 101 {
 102         bool path_found = false;
 103         const FS::Path &sysroot = build_info.sysroot;
 104
 105         executable = builder.get_vfs().find_binary(command);
 106         if(executable)
 107         {
 108                 ExternalTask::Arguments argv;
 109                 argv.push_back(executable->get_path().str());
 110                 argv.push_back("-Wp,-v");
 111                 argv.push_back("-E");
 112                 if(tag=="CXX")
 113                         argv.push_back("-xc++");
 114                 if(!sysroot.empty())
 115                         argv.push_back("--sysroot="+sysroot.str());
 116                 argv.push_back("-");
 117
 118                 builder.get_logger().log("auxcommands", format("Running %s", join(argv.begin(), argv.end())));
 119                 try
 120                 {
 121                         string output = ExternalTask::run_and_capture_output(argv, FS::Path(), true);
 122                         string::size_type start = 0;
 123                         bool record_path = false;
 124                         while(start<output.size())
 125                         {
 126                                 string::size_type newline = output.find('\n', start);
 127                                 if(!output.compare(start, 34, "#include <...> search starts here:"))
 128                                 {
 129                                         record_path = true;
 130                                         path_found = true;
 131                                 }
 132                                 else if(!output.compare(start, 19, "End of search list."))
 133                                         record_path = false;
 134                                 else if(record_path)
 135                                 {
 136                                         FS::Path path = strip(output.substr(start, newline-start));
 137                                         builder.get_logger().log("tools", format("Got %s system path: %s", tag, path));
 138                                         system_path.push_back(path);
 139                                 }
 140                                 start = newline+1;
 141                         }
 142                 }
 143                 catch(const runtime_error &e)
 144                 { }
 145         }
 146
 147         if(!path_found)
 148         {
 149                 builder.get_logger().log("tools", format("No %s system path found, using defaults", tag));
 150                 if(!sysroot.empty())
 151                         system_path.push_back(sysroot/"usr/include");
 152                 else if(architecture->is_native())
 153                         system_path.push_back("/usr/include");
 154                 else
 155                         system_path.push_back("/usr/"+architecture->get_cross_prefix()+"/include");
 156         }
 157 }
 158
 159 Task *GnuCompiler::run(const Target &target) const
 160 {
 161         const ObjectFile &object = dynamic_cast<const ObjectFile &>(target);
 162
 163         ExternalTask::Arguments argv;
 164         argv.push_back(executable->get_path().str());
 165         argv.push_back("-c");
 166
 167         BuildInfo binfo;
 168         target.collect_build_info(binfo);
 169
 170         string tag_for_std = (tag=="OBJC" ? "CC" : tag);
 171         if(binfo.standards.count(tag_for_std))
 172                 argv.push_back("-std="+get_item(binfo.standards, tag_for_std));
 173         if(tag=="OBJC" && binfo.standards.count(tag))
 174                 argv.push_back("-fobjc-std="+get_item(binfo.standards, tag));
 175
 176         if(binfo.warning_level>=1)
 177         {
 178                 argv.push_back("-Wall");
 179                 if(binfo.warning_level>=2)
 180                 {
 181                         argv.push_back("-Wextra");
 182                         argv.push_back("-Wundef");
 183                 }
 184                 if(binfo.warning_level>=3)
 185                 {
 186                         argv.push_back("-pedantic");
 187                         argv.push_back("-Wno-long-long");
 188                         argv.push_back("-Wshadow");
 189                         if(tag=="CC")
 190                         {
 191                                 argv.push_back("-Wc++-compat");
 192                                 argv.push_back("-Wstrict-prototypes");
 193                         }
 194                 }
 195                 if(binfo.warning_level>=4)
 196                 {
 197                         // Some truly paranoid warnings
 198                         argv.push_back("-Wstrict-overflow=4");
 199                         argv.push_back("-Wfloat-equal");
 200                         argv.push_back("-Wconversion");
 201                         argv.push_back("-Wwrite-strings");
 202                         argv.push_back("-Winline");
 203                 }
 204                 if(binfo.fatal_warnings)
 205                 {
 206                         argv.push_back("-Werror");
 207                         argv.push_back("-Wno-error=deprecated-declarations");
 208                 }
 209         }
 210
 211         const FS::Path &sysroot = binfo.sysroot;
 212         if(!sysroot.empty())
 213                 argv.push_back("--sysroot="+sysroot.str());
 214         for(BuildInfo::PathList::const_iterator i=binfo.local_incpath.begin(); i!=binfo.local_incpath.end(); ++i)
 215         {
 216                 argv.push_back("-iquote");
 217                 argv.push_back(i->str());
 218         }
 219         for(BuildInfo::PathList::const_iterator i=binfo.incpath.begin(); i!=binfo.incpath.end(); ++i)
 220                 argv.push_back("-I"+i->str());
 221
 222         for(BuildInfo::DefineMap::const_iterator i=binfo.defines.begin(); i!=binfo.defines.end(); ++i)
 223         {
 224                 if(i->second.empty())
 225                         argv.push_back(format("-D%s", i->first));
 226                 else
 227                         argv.push_back(format("-D%s=%s", i->first, i->second));
 228         }
 229
 230         if(binfo.debug)
 231                 argv.push_back("-ggdb");
 232         if(binfo.optimize)
 233         {
 234                 if(binfo.optimize<0)
 235                         argv.push_back("-Os");
 236                 else
 237                         argv.push_back(format("-O%d", binfo.optimize));
 238         }
 239         if(binfo.threads && architecture->get_system()!="windows" && architecture->get_system()!="darwin")
 240                 argv.push_back("-pthread");
 241         if(object.is_used_in_shared_library() && architecture->get_system()!="windows")
 242                 argv.push_back("-fPIC");
 243
 244         const Architecture &native_arch = builder.get_native_arch();
 245         if(architecture->is_native() && architecture->get_bits()!=native_arch.get_bits())
 246                 argv.push_back(format("-m%d", architecture->get_bits()));
 247
 248         string cpu = architecture->get_cpu();
 249         if(!cpu.empty())
 250         {
 251                 for(unsigned i=0; cpus[i]; i+=2)
 252                         if(cpu==cpus[i])
 253                         {
 254                                 cpu = cpus[i+1];
 255                                 break;
 256                         }
 257                 argv.push_back("-march="+cpu);
 258         }
 259
 260         if(!architecture->get_fpu().empty())
 261         {
 262                 if(architecture->get_type()=="x86")
 263                 {
 264                         argv.push_back("-mfpmath="+architecture->get_fpu());
 265                         if(architecture->get_fpu()=="sse")
 266                                 argv.push_back("-msse2");
 267                 }
 268                 else if(architecture->get_type()=="arm")
 269                 {
 270                         argv.push_back("-mfpu="+architecture->get_fpu());
 271                         argv.push_back("-mfloat-abi=softfp");
 272                 }
 273         }
 274
 275         FS::Path obj_path = object.get_path();
 276         FS::Path src_path = object.get_source().get_path();
 277         FS::Path work_dir = object.get_component()->get_package().get_source_directory();
 278
 279         argv.push_back("-o");
 280         argv.push_back(relative(obj_path, work_dir).str());
 281         argv.push_back(relative(src_path, work_dir).str());
 282
 283         return new ExternalTask(argv, work_dir);
 284 }