source/gnucompiler.cpp

   1 #include <msp/fs/dir.h>
   2 #include <msp/fs/utils.h>
   3 #include <msp/strings/format.h>
   4 #include "architecture.h"
   5 #include "builder.h"
   6 #include "component.h"
   7 #include "externaltask.h"
   8 #include "gnucompiler.h"
   9 #include "objectfile.h"
  10 #include "sourcefile.h"
  11 #include "sourcepackage.h"
  12
  13 using namespace std;
  14 using namespace Msp;
  15
  16 GnuCompiler::GnuCompiler(Builder &b, const Architecture &a, const string &t, const string &c):
  17         Tool(b, a, t)
  18 {
  19         string command = c;
  20         if(architecture->is_cross())
  21                 command = format("%s-%s", architecture->get_cross_prefix(), command);
  22         executable = builder.get_vfs().find_binary(command);
  23
  24         if(architecture->is_native())
  25                 system_path.push_back("/usr/include");
  26         else
  27                 system_path.push_back("/usr/"+architecture->get_cross_prefix()+"/include");
  28 }
  29
  30 Target *GnuCompiler::create_target(const list<Target *> &sources, const string &) const
  31 {
  32         if(sources.size()!=1)
  33                 throw invalid_argument("GnuCCompiler::create_target");
  34         SourceFile &source = dynamic_cast<SourceFile &>(*sources.front());
  35         ObjectFile *obj = new ObjectFile(builder, *source.get_component(), source);
  36         obj->set_tool(*this);
  37         return obj;
  38 }
  39
  40 string GnuCompiler::create_build_signature(const BuildInfo &binfo) const
  41 {
  42         string result = FS::basename(executable->get_path());
  43         result += ',';
  44         if(binfo.debug)
  45                 result += 'g';
  46         if(binfo.optimize)
  47         {
  48                 result += 'O';
  49                 result += (binfo.optimize>0 ? '0'+binfo.optimize : 's');
  50         }
  51         return result;
  52 }
  53
  54 Task *GnuCompiler::run(const Target &target) const
  55 {
  56         const ObjectFile &object = dynamic_cast<const ObjectFile &>(target);
  57         const Component &comp = *object.get_component();
  58
  59         ExternalTask::Arguments argv;
  60         argv.push_back(executable->get_path().str());
  61         argv.push_back("-c");
  62
  63         const BuildInfo &binfo = comp.get_build_info();
  64         if(binfo.warning_level>=1)
  65         {
  66                 argv.push_back("-Wall");
  67                 if(binfo.warning_level>=2)
  68                 {
  69                         argv.push_back("-Wextra");
  70                         argv.push_back("-Wundef");
  71                 }
  72                 if(binfo.warning_level>=3)
  73                 {
  74                         argv.push_back("-pedantic");
  75                         argv.push_back("-Wno-long-long");
  76                         argv.push_back("-Wshadow");
  77                         argv.push_back("-Winline");
  78                         if(tag=="CC")
  79                         {
  80                                 argv.push_back("-Wc++-compat");
  81                                 argv.push_back("-Wstrict-prototypes");
  82                         }
  83                 }
  84                 if(binfo.warning_level>=4)
  85                 {
  86                         // Some truly paranoid warnings
  87                         argv.push_back("-Wstrict-overflow=4");
  88                         argv.push_back("-Wfloat-equal");
  89                         argv.push_back("-Wconversion");
  90                         argv.push_back("-Wwrite-strings");
  91                 }
  92                 if(binfo.fatal_warnings)
  93                         argv.push_back("-Werror");
  94         }
  95         for(BuildInfo::PathList::const_iterator i=binfo.incpath.begin(); i!=binfo.incpath.end(); ++i)
  96                 argv.push_back("-I"+i->str());
  97         for(BuildInfo::DefineMap::const_iterator i=binfo.defines.begin(); i!=binfo.defines.end(); ++i)
  98         {
  99                 if(i->second.empty())
 100                         argv.push_back(format("-D%s", i->first));
 101                 else
 102                         argv.push_back(format("-D%s=%s", i->first, i->second));
 103         }
 104         if(binfo.debug)
 105                 argv.push_back("-ggdb");
 106         if(binfo.optimize)
 107         {
 108                 if(binfo.optimize<0)
 109                         argv.push_back("-Os");
 110                 else
 111                         argv.push_back(format("-O%d", binfo.optimize));
 112         }
 113         if(binfo.threads)
 114                 argv.push_back("-pthread");
 115         if(comp.get_type()==Component::LIBRARY && architecture->get_system()!="windows")
 116                 argv.push_back("-fPIC");
 117
 118         const Architecture &native_arch = builder.get_native_arch();
 119         if(architecture->get_bits()!=native_arch.get_bits())
 120                 argv.push_back(format("-m%d", architecture->get_bits()));
 121
 122         const string &cpu = architecture->get_cpu();
 123         if(!cpu.empty())
 124                 argv.push_back("-march="+cpu);
 125
 126         FS::Path obj_path = object.get_path();
 127         FS::Path src_path = object.get_source().get_path();
 128         FS::Path work_dir = comp.get_package().get_source_directory();
 129
 130         argv.push_back("-o");
 131         argv.push_back(relative(obj_path, work_dir).str());
 132         argv.push_back(relative(src_path, work_dir).str());
 133
 134         if(!builder.get_dry_run())
 135                 FS::mkpath(FS::dirname(obj_path), 0755);
 136
 137         return new ExternalTask(argv, work_dir);
 138 }