]> git.tdb.fi Git - builder.git/blobdiff - source/gnulinker.cpp
Redesign GnuLinker to work without subtools
[builder.git] / source / gnulinker.cpp
index ee4f02dd2fd520bd4e05402b596dbcd718601eae..619c9e784b3a00ec5bd22e2e537afb90da9e85d9 100644 (file)
@@ -3,12 +3,16 @@
 #include <msp/fs/dir.h>
 #include <msp/fs/utils.h>
 #include <msp/strings/format.h>
+#include <msp/strings/utils.h>
 #include "builder.h"
 #include "component.h"
 #include "executable.h"
+#include "exportdefinitions.h"
 #include "externaltask.h"
-#include "gnucxxcompiler.h"
+#include "gnucompiler.h"
 #include "gnulinker.h"
+#include "importlibrary.h"
+#include "installedfile.h"
 #include "objectfile.h"
 #include "sharedlibrary.h"
 #include "sourcepackage.h"
 using namespace std;
 using namespace Msp;
 
-GnuLinker::GnuLinker(Builder &b):
-       Tool(b, "LINK")
+GnuLinker::GnuLinker(Builder &b, const Architecture &a):
+       Tool(b, a, "LINK")
 {
        input_suffixes.push_back(".o");
        input_suffixes.push_back(".a");
 
-       const Architecture &arch = builder.get_current_arch();
-       if(arch.is_native())
-       {
-               system_path.push_back("/lib");
-               system_path.push_back("/usr/lib");
-               if(arch.match_name("pc-32-linux"))
-                       system_path.push_back("/usr/lib/i386-linux-gnu");
-               else if(arch.match_name("pc-64-linux"))
-                       system_path.push_back("/usr/lib/x86_64-linux-gnu");
-       }
-       else
-               system_path.push_back("/usr/"+arch.get_cross_prefix()+"/lib");
+       processing_unit = COMPONENT;
+
+       set_command("gcc");
+       set_run(_run);
 }
 
-Target *GnuLinker::create_target(const list<Target *> &sources, const std::string &arg) const
+Target *GnuLinker::create_target(const vector<Target *> &sources, const string &arg)
 {
        if(sources.empty())
                throw invalid_argument("GnuLinker::create_target");
-       list<ObjectFile *> objs;
-       for(list<Target *>::const_iterator i=sources.begin(); i!=sources.end(); ++i)
-       {
-               if(ObjectFile *obj = dynamic_cast<ObjectFile *>(*i))
-                       objs.push_back(obj);
-               else
-                       throw invalid_argument("GnuLinker::create_target");
-       }
+       vector<ObjectFile *> objs;
+       objs.reserve(sources.size());
+       for(Target *s: sources)
+               objs.push_back(&dynamic_cast<ObjectFile &>(*s));
 
-       const Component &comp = objs.front()->get_component();
+       const Component &comp = *objs.front()->get_component();
        Binary *bin = 0;
        if(arg=="shared")
-               bin = new SharedLibrary(builder, comp, objs);
+       {
+               SharedLibrary *shlib = new SharedLibrary(builder, comp, objs);
+               if(architecture->get_system()=="windows")
+               {
+                       Tool &dlltool = builder.get_toolchain().get_tool("DLL");
+                       dlltool.create_target(*shlib);
+               }
+               bin = shlib;
+       }
        else
                bin = new Executable(builder, comp, objs);
        bin->set_tool(*this);
        return bin;
 }
 
-Task *GnuLinker::run(const Target &target) const
+Target *GnuLinker::create_install(Target &target) const
 {
-       const Binary &bin = dynamic_cast<const Binary &>(target);
+       if(SharedLibrary *shlib = dynamic_cast<SharedLibrary *>(&target))
+       {
+               Tool &copy = builder.get_toolchain().get_tool("CP");
+               InstalledFile *inst_tgt = dynamic_cast<InstalledFile *>(copy.create_target(target));
+               if(architecture->get_system()=="windows")
+                       builder.get_build_graph().add_installed_target(*shlib->get_import_library());
+               else
+               {
+                       string link_name = architecture->create_filename<SharedLibrary>(shlib->get_libname());
+                       if(link_name!=FS::basename(inst_tgt->get_path()))
+                               inst_tgt->set_symlink(link_name);
+               }
+               return inst_tgt;
+       }
+       else
+               return 0;
+}
 
-       string command = "gcc";
+string GnuLinker::create_build_signature(const BuildInfo &binfo) const
+{
+       string result = Tool::create_build_signature(binfo);
+       result += ',';
+       if(binfo.libmode<=BuildInfo::STATIC)
+               result += 't';
+       else
+               result += 'd';
+       if(binfo.strip)
+               result += 's';
+       if(!binfo.libs.empty())
+       {
+               result += ",l";
+               result += join(binfo.libs.begin(), binfo.libs.end(), ",l");
+       }
+       return result;
+}
+
+void GnuLinker::do_prepare()
+{
+       bool path_found = false;
+       const FS::Path &sysroot = build_info.sysroot;
+
+       if(executable)
+       {
+               ExternalTask::Arguments argv;
+               argv.push_back(executable->get_path().str());
+               argv.push_back("-Wl,--verbose");
+               argv.push_back("-nostdlib");
+               if(!sysroot.empty())
+                       argv.push_back("--sysroot="+sysroot.str());
 
-       const Target::Dependencies &depends = target.get_depends();
-       for(Target::Dependencies::const_iterator i=depends.begin(); i!=depends.end(); ++i)
-               if(ObjectFile *obj = dynamic_cast<ObjectFile *>(*i))
+               builder.get_logger().log("auxcommands", "Running %s", join(argv.begin(), argv.end()));
+               try
                {
-                       const Tool *tool = obj->get_tool();
-                       if(tool->get_tag()=="CXX")
-                               command = "g++";
+                       string output = ExternalTask::run_and_capture_output(argv, FS::Path(), true);
+                       string::size_type start = 0;
+                       while(start<output.size())
+                       {
+                               string::size_type search_dir = output.find("SEARCH_DIR(\"", start);
+                               if(search_dir==string::npos)
+                                       break;
+
+                               search_dir += 12;
+                               string::size_type end = output.find("\");", search_dir);
+                               if(end==string::npos)
+                                       break;
+
+                               FS::Path path;
+                               if(!output.compare(search_dir, 2, "=/"))
+                               {
+                                       search_dir += 2;
+                                       if(sysroot.empty())
+                                               path = "/";
+                                       else
+                                               path = sysroot;
+                               }
+
+                               path /= output.substr(search_dir, end-search_dir);
+                               builder.get_logger().log("tools", "Got %s system path: %s", tag, path);
+                               system_path.push_back(path);
+                               path_found = true;
+
+                               start = end+3;
+                       }
                }
+               catch(...)
+               { }
+       }
 
-       vector<string> argv;
-       argv.push_back(command);
+       if(!path_found)
+       {
+               builder.get_logger().log("tools", "No %s system path found, using defaults", tag);
+               if(!sysroot.empty())
+                       system_path.push_back(sysroot/"usr/lib");
+               else if(architecture->is_native())
+               {
+                       system_path.push_back("/lib");
+                       system_path.push_back("/usr/lib");
+                       if(architecture->match_name("pc-32-linux"))
+                       {
+                               system_path.push_back("/lib/i386-linux-gnu");
+                               system_path.push_back("/usr/lib/i386-linux-gnu");
+                       }
+                       else if(architecture->match_name("pc-64-linux"))
+                       {
+                               system_path.push_back("/lib/x86_64-linux-gnu");
+                               system_path.push_back("/usr/lib/x86_64-linux-gnu");
+                       }
+               }
+               else
+                       system_path.push_back(format("/usr/%s/lib", architecture->get_cross_prefix()));
+       }
+}
+
+Task *GnuLinker::_run(const Binary &bin)
+{
+       const Tool &tool = *bin.get_tool();
+       const Builder &builder = tool.get_builder();
+       const Architecture &arch = *tool.get_architecture();
+
+       ExternalTask::Arguments argv;
+       argv.push_back(tool.get_executable()->get_path().str());
 
-       const Component &comp = *bin.get_component();
+       FS::Path work_dir = bin.get_component()->get_package().get_source_directory();
 
        if(const SharedLibrary *shlib = dynamic_cast<const SharedLibrary *>(&bin))
        {
                argv.push_back("-shared");
                argv.push_back("-fPIC");
-               if(!shlib->get_soname().empty())
-                       argv.push_back("-Wl,-soname,"+shlib->get_soname());
+               if(arch.get_system()!="windows" && !shlib->get_soname().empty())
+               {
+                       if(arch.get_system()=="darwin")
+                       {
+                               argv.push_back("-install_name");
+                               argv.push_back(shlib->get_soname());
+
+                               const string &ver = shlib->get_package()->get_version();
+                               const string &if_ver = shlib->get_package()->get_interface_version();
+                               if(!ver.empty() && !if_ver.empty())
+                               {
+                                       argv.push_back("-current_version");
+                                       argv.push_back(ver);
+                                       argv.push_back("-compatibility_version");
+                                       argv.push_back(if_ver);
+                               }
+                       }
+                       else
+                               argv.push_back("-Wl,-soname,"+shlib->get_soname());
+               }
        }
-       else if(comp.get_package().get_library_mode()==ALL_STATIC)
-               argv.push_back("-static");
 
-       const BuildInfo &binfo = comp.get_build_info();
-       for(list<string>::const_iterator i=binfo.libpath.begin(); i!=binfo.libpath.end(); ++i)
-               argv.push_back("-L"+*i);
+       BuildInfo binfo;
+       bin.collect_build_info(binfo);
+
+       const FS::Path &sysroot = binfo.sysroot;
+       if(!sysroot.empty())
+               argv.push_back("--sysroot="+sysroot.str());
+
+       FS::Path lib_dir = builder.get_prefix()/"lib";
+       if(binfo.rpath_mode==BuildInfo::ABSOLUTE)
+               argv.push_back("-Wl,-rpath,"+lib_dir.str());
+       else
+       {
+               if(binfo.rpath_mode==BuildInfo::RELATIVE)
+                       argv.push_back("-Wl,-rpath,$ORIGIN/../lib");
+               argv.push_back("-Wl,-rpath-link,"+lib_dir.str());
+       }
+
+       for(const FS::Path &p: binfo.libpath)
+               argv.push_back("-L"+p.str());
        if(binfo.strip)
                argv.push_back("-s");
-       if(binfo.threads)
+       if(binfo.threads && arch.get_system()!="windows" && arch.get_system()!="darwin")
                argv.push_back("-pthread");
 
-       const Architecture &arch = builder.get_current_arch();
        const Architecture &native_arch = builder.get_native_arch();
-       if(arch.get_bits()!=native_arch.get_bits())
+       if(arch.is_native() && arch.get_bits()!=native_arch.get_bits())
                argv.push_back(format("-m%d", arch.get_bits()));
 
-       FS::Path work_dir = comp.get_package().get_source();
-
        argv.push_back("-o");
        argv.push_back(relative(bin.get_path(), work_dir).str());
-       for(Target::Dependencies::const_iterator i=depends.begin(); i!=depends.end(); ++i)
+
+       for(const string &s: binfo.keep_symbols)
+               argv.push_back("-u"+s);
+
+       bool static_link_ok = (binfo.libmode<=BuildInfo::STATIC);
+
+       bool has_cplusplus = false;
+       for(Target *d: bin.get_dependencies())
        {
-               Target *tgt = (*i)->get_real_target();
+               FileTarget *file = dynamic_cast<FileTarget *>(d);
+               Target *tgt = d->get_real_target();
 
                if(ObjectFile *obj = dynamic_cast<ObjectFile *>(tgt))
+               {
                        argv.push_back(relative(obj->get_path(), work_dir).str());
+                       if(obj->get_tool()->get_tag()=="CXX")
+                               has_cplusplus = true;
+               }
                else if(StaticLibrary *stlib = dynamic_cast<StaticLibrary *>(tgt))
-                       argv.push_back(stlib->get_path().str());
+                       argv.push_back((file?file:stlib)->get_path().str());
                else if(SharedLibrary *shlib = dynamic_cast<SharedLibrary *>(tgt))
+               {
                        argv.push_back("-l"+shlib->get_libname());
+                       static_link_ok = false;
+               }
+               else if(ImportLibrary *imp = dynamic_cast<ImportLibrary *>(tgt))
+               {
+                       shlib = imp->get_shared_library();
+                       if(shlib)
+                               argv.push_back("-l"+shlib->get_libname());
+                       else
+                               argv.push_back((file?file:imp)->get_path().str());
+                       static_link_ok = false;
+               }
        }
 
-       if(!builder.get_dry_run())
-               FS::mkpath(FS::dirname(bin.get_path()), 0755);
+       for(const string &l: binfo.libs)
+               if(l.size()>10 && !l.compare(l.size()-10, 10, ".framework"))
+               {
+                       argv.push_back("-framework");
+                       argv.push_back(l.substr(0, l.size()-10));
+               }
+
+       if(has_cplusplus)
+               argv.push_back("-lstdc++");
+
+       if(static_link_ok)
+               argv.push_back("-static");
+       else
+       {
+               if(has_cplusplus)
+               {
+                       auto i = binfo.libmodes.find("stdc++");
+                       if(i!=binfo.libmodes.end() && i->second<=BuildInfo::STATIC)
+                               argv.push_back("-static-libstdc++");
+               }
+
+               if(arch.get_system()=="windows")
+                       argv.push_back("-Wl,--enable-auto-import");
+       }
 
        return new ExternalTask(argv, work_dir);
 }