source/mingwdlltool.cpp

   1 #include <cstdlib>
   2 #include <msp/fs/utils.h>
   3 #include <msp/strings/format.h>
   4 #include "builder.h"
   5 #include "component.h"
   6 #include "exportdefinitions.h"
   7 #include "externaltask.h"
   8 #include "importlibrary.h"
   9 #include "installedfile.h"
  10 #include "mingwdlltool.h"
  11 #include "objectfile.h"
  12 #include "sharedlibrary.h"
  13 #include "sourcepackage.h"
  14
  15 using namespace std;
  16 using namespace Msp;
  17
  18 MingwDllTool::MingwDllTool(Builder &b, const Architecture &a):
  19         Tool(b, a, "DLL")
  20 {
  21         set_command("dlltool", true);
  22         set_run(_run);
  23 }
  24
  25 Target *MingwDllTool::create_target(const vector<Target *> &sources, const string &)
  26 {
  27         if(sources.size()!=1)
  28                 throw invalid_argument("MingwDllTool::create_target");
  29         SharedLibrary &shlib = dynamic_cast<SharedLibrary &>(*sources.front());
  30
  31         vector<ObjectFile *> objs;
  32         objs.reserve(shlib.get_dependencies().size());
  33         for(Target *d: shlib.get_dependencies())
  34                 if(ObjectFile *obj = dynamic_cast<ObjectFile *>(d))
  35                         objs.push_back(obj);
  36
  37         ExportDefinitions *exp = new ExportDefinitions(builder, *shlib.get_component(), objs);
  38         exp->set_tool(*this);
  39
  40         ImportLibrary *imp = new ImportLibrary(builder, *shlib.get_component(), shlib, *exp);
  41         imp->set_tool(*this);
  42
  43         return imp;
  44 }
  45
  46 Target *MingwDllTool::create_install(Target &target) const
  47 {
  48         if(ImportLibrary *imp = dynamic_cast<ImportLibrary *>(&target))
  49         {
  50                 Tool &copy = builder.get_toolchain().get_tool("CP");
  51                 InstalledFile *inst_tgt = dynamic_cast<InstalledFile *>(copy.create_target(target));
  52                 string link_name = format("lib%s.dll.a", imp->get_shared_library()->get_libname());
  53                 if(link_name!=FS::basename(inst_tgt->get_path()))
  54                         inst_tgt->set_symlink(link_name);
  55                 return inst_tgt;
  56         }
  57         else
  58                 return 0;
  59 }
  60
  61 Task *MingwDllTool::_run(const Target &target)
  62 {
  63         const Tool &tool = *target.get_tool();
  64
  65         const ImportLibrary *imp = dynamic_cast<const ImportLibrary *>(&target);
  66         const ExportDefinitions *exp = 0;
  67         if(imp)
  68                 exp = &dynamic_cast<const ExportDefinitions &>(*imp->get_dependencies().front());
  69         else
  70                 exp = dynamic_cast<const ExportDefinitions *>(&target);
  71         if(!imp && !exp)
  72                 throw invalid_argument("MingwDllTool::run");
  73
  74         vector<string> argv;
  75         argv.push_back(tool.get_executable()->get_path().str());
  76
  77         /* dlltool is stupid and puts temporary files in the working directory by
  78         default */
  79         argv.push_back("--temp-prefix");
  80         char random[8];
  81         for(unsigned i=0; i<8; ++i)
  82                 random[i] = 'a'+(rand()%26);
  83         argv.push_back(string("/tmp/")+string(random, 8));
  84
  85         const Component &comp = *target.get_component();
  86         FS::Path work_dir = comp.get_package().get_source_directory();
  87
  88         if(imp)
  89         {
  90                 const SharedLibrary &shlib = *imp->get_shared_library();
  91
  92                 argv.push_back("-d");
  93                 argv.push_back(relative(exp->get_path(), work_dir).str());
  94
  95                 argv.push_back("-D");
  96                 if(shlib.get_install_filename().empty())
  97                         argv.push_back(FS::basename(shlib.get_path()));
  98                 else
  99                         argv.push_back(shlib.get_install_filename());
 100
 101                 argv.push_back("-l");
 102                 argv.push_back(relative(imp->get_path(), work_dir).str());
 103         }
 104         else
 105         {
 106                 for(Target *d: exp->get_dependencies())
 107                         if(ObjectFile *obj = dynamic_cast<ObjectFile *>(d))
 108                                 argv.push_back(relative(obj->get_path(), work_dir).str());
 109
 110                 // XXX Should use dllexport, but that has some other problems to solve
 111                 argv.push_back("--export-all-symbols");
 112
 113                 argv.push_back("-z");
 114                 argv.push_back(relative(exp->get_path(), work_dir).str());
 115         }
 116
 117         return new ExternalTask(argv, work_dir);
 118 }