Let tools have a say in installing their targets

[builder.git] / source / gnulinker.cpp

diff --git a/source/gnulinker.cpp b/source/gnulinker.cpp
index df0adbc8eff36944b66053d4e83a371902671d66..d2ea51e96c9a3e36387f0f64198aa2c4242443f9 100644 (file)
--- a/source/gnulinker.cpp
+++ b/source/gnulinker.cpp
@@ -3,6 +3,7 @@
 #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"
@@ -17,24 +18,23 @@
 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())
+       if(architecture->is_native())
        {
                system_path.push_back("/lib");
                system_path.push_back("/usr/lib");
-               if(arch.match_name("pc-32-linux"))
+               if(architecture->match_name("pc-32-linux"))
                        system_path.push_back("/usr/lib/i386-linux-gnu");
-               else if(arch.match_name("pc-64-linux"))
+               else if(architecture->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");
+               system_path.push_back("/usr/"+architecture->get_cross_prefix()+"/lib");
 
        default_linker = new Linker(*this, "CC");
        cxx_linker = new Linker(*this, "CXX");
@@ -64,7 +64,7 @@ Target *GnuLinker::create_target(const list<Target *> &sources, const string &ar
                        throw invalid_argument("GnuLinker::create_target");
        }
 
-       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);
@@ -95,6 +95,8 @@ GnuLinker::Linker::Linker(GnuLinker &p, const string &compiler_tag):
                        command = "g++";
                else
                        throw invalid_argument("GnuLinker::Linker::Linker");
+               if(architecture->is_cross())
+                       command = format("%s-%s", architecture->get_cross_prefix(), command);
                executable = builder.get_vfs().find_binary(command);
        }
 }
@@ -104,6 +106,21 @@ Target *GnuLinker::Linker::create_target(const list<Target *> &sources, const st
        return parent.create_target(sources, arg);
 }
 
+string GnuLinker::Linker::create_build_signature(const BuildInfo &binfo) const
+{
+       string result = FS::basename(executable->get_path());
+       result += ',';
+       if(binfo.libmode<=BuildInfo::STATIC)
+               result += 't';
+       else
+               result += 'd';
+       if(binfo.strip)
+               result += 's';
+       result += ",l";
+       result += join(binfo.libs.begin(), binfo.libs.end(), ",l");
+       return result;
+}
+
 Task *GnuLinker::Linker::run(const Target &target) const
 {
        const Binary &bin = dynamic_cast<const Binary &>(target);
@@ -120,8 +137,6 @@ Task *GnuLinker::Linker::run(const Target &target) const
                if(!shlib->get_soname().empty())
                        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(BuildInfo::PathList::const_iterator i=binfo.libpath.begin(); i!=binfo.libpath.end(); ++i)
@@ -131,17 +146,18 @@ Task *GnuLinker::Linker::run(const Target &target) const
        if(binfo.threads)
                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())
-               argv.push_back(format("-m%d", arch.get_bits()));
+       if(architecture->get_bits()!=native_arch.get_bits())
+               argv.push_back(format("-m%d", architecture->get_bits()));
 
-       FS::Path work_dir = comp.get_package().get_source();
+       FS::Path work_dir = comp.get_package().get_source_directory();
 
        argv.push_back("-o");
        argv.push_back(relative(bin.get_path(), work_dir).str());
 
-       const Target::Dependencies &depends = target.get_depends();
+       bool static_link_ok = (binfo.libmode<=BuildInfo::STATIC);
+
+       const Target::Dependencies &depends = target.get_dependencies();
        for(Target::Dependencies::const_iterator i=depends.begin(); i!=depends.end(); ++i)
        {
                Target *tgt = (*i)->get_real_target();
@@ -151,11 +167,16 @@ Task *GnuLinker::Linker::run(const Target &target) const
                else if(StaticLibrary *stlib = dynamic_cast<StaticLibrary *>(tgt))
                        argv.push_back(stlib->get_path().str());
                else if(SharedLibrary *shlib = dynamic_cast<SharedLibrary *>(tgt))
+               {
                        argv.push_back("-l"+shlib->get_libname());
+                       static_link_ok = false;
+               }
        }
 
-       if(!builder.get_dry_run())
-               FS::mkpath(FS::dirname(bin.get_path()), 0755);
+       if(static_link_ok)
+               argv.push_back("-static");
+       else if(architecture->get_system()=="windows")
+               argv.push_back("-Wl,--enable-auto-import");
 
        return new ExternalTask(argv, work_dir);
 }