X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fgnulinker.cpp;h=2d37a4d93533b4486d865a043f691f3725ff4aa5;hb=bf0883b6dd3946612922aa1b7c04a87d06442df7;hp=837e7c7e64ff5baed9926ab1db5006a8f924245f;hpb=000deb52a1374bcedfec5d201c53c1842438ceba;p=builder.git

diff --git a/source/gnulinker.cpp b/source/gnulinker.cpp
index 837e7c7..2d37a4d 100644
--- a/source/gnulinker.cpp
+++ b/source/gnulinker.cpp
@@ -27,17 +27,7 @@ GnuLinker::GnuLinker(Builder &b, const Architecture &a):
 	input_suffixes.push_back(".o");
 	input_suffixes.push_back(".a");
 
-	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("/usr/lib/i386-linux-gnu");
-		else if(architecture->match_name("pc-64-linux"))
-			system_path.push_back("/usr/lib/x86_64-linux-gnu");
-	}
-	else
-		system_path.push_back("/usr/"+architecture->get_cross_prefix()+"/lib");
+	processing_unit = COMPONENT;
 
 	default_linker = new Linker(*this, "CC");
 	cxx_linker = new Linker(*this, "CXX");
@@ -95,8 +85,7 @@ Target *GnuLinker::create_install(Target &target) const
 			builder.get_build_graph().add_installed_target(*shlib->get_import_library());
 		else
 		{
-			const Pattern &pattern = architecture->get_shared_library_patterns().front();
-			string link_name = pattern.apply(shlib->get_libname());
+			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);
 		}
@@ -106,6 +95,89 @@ Target *GnuLinker::create_install(Target &target) const
 		return 0;
 }
 
+void GnuLinker::do_prepare()
+{
+	bool path_found = false;
+	const FS::Path &sysroot = build_info.sysroot;
+
+	Tool &compiler = builder.get_toolchain().get_tool("CC");
+	if(dynamic_cast<GnuCompiler *>(&compiler))
+	{
+		compiler.prepare();
+		FileTarget *compiler_exe = compiler.get_executable();
+		if(compiler_exe)
+		{
+			ExternalTask::Arguments argv;
+			argv.push_back(compiler_exe->get_path().str());
+			argv.push_back("-Wl,--verbose");
+			argv.push_back("-nostdlib");
+			if(!sysroot.empty())
+				argv.push_back("--sysroot="+sysroot.str());
+
+			builder.get_logger().log("auxcommands", format("Running %s", join(argv.begin(), argv.end())));
+			try
+			{
+				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", format("Got %s system path: %s", tag, path));
+					system_path.push_back(path);
+					path_found = true;
+
+					start = end+3;
+				}
+			}
+			catch(...)
+			{ }
+		}
+	}
+
+	if(!path_found)
+	{
+		builder.get_logger().log("tools", format("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("/usr/"+architecture->get_cross_prefix()+"/lib");
+	}
+}
+
 Task *GnuLinker::run(const Target &) const
 {
 	throw logic_error("GnuLinker should not be run directly");
@@ -124,16 +196,6 @@ GnuLinker::Linker::Linker(GnuLinker &p, const string &ct):
 		throw invalid_argument("GnuLinker::Linker::Linker");
 }
 
-Target *GnuLinker::Linker::create_target(const list<Target *> &sources, const string &arg)
-{
-	return parent.create_target(sources, arg);
-}
-
-Target *GnuLinker::Linker::create_install(Target &target) const
-{
-	return parent.create_install(target);
-}
-
 string GnuLinker::Linker::create_build_signature(const BuildInfo &binfo) const
 {
 	string result = FS::basename(executable->get_path());
@@ -154,6 +216,10 @@ string GnuLinker::Linker::create_build_signature(const BuildInfo &binfo) const
 
 void GnuLinker::Linker::do_prepare()
 {
+	parent.prepare();
+	build_info = parent.get_build_info();
+	system_path = parent.get_system_path();
+
 	Tool &compiler = builder.get_toolchain().get_tool(compiler_tag);
 	if(dynamic_cast<GnuCompiler *>(&compiler))
 	{
@@ -169,9 +235,7 @@ Task *GnuLinker::Linker::run(const Target &target) const
 	vector<string> argv;
 	argv.push_back(executable->get_path().str());
 
-	const Component &comp = *bin.get_component();
-
-	FS::Path work_dir = comp.get_package().get_source_directory();
+	FS::Path work_dir = bin.get_component()->get_package().get_source_directory();
 
 	if(const SharedLibrary *shlib = dynamic_cast<const SharedLibrary *>(&bin))
 	{
@@ -199,7 +263,23 @@ Task *GnuLinker::Linker::run(const Target &target) const
 		}
 	}
 
-	const BuildInfo &binfo = comp.get_build_info();
+	BuildInfo binfo;
+	target.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(BuildInfo::PathList::const_iterator i=binfo.libpath.begin(); i!=binfo.libpath.end(); ++i)
 		argv.push_back("-L"+i->str());
 	if(binfo.strip)
@@ -208,14 +288,16 @@ Task *GnuLinker::Linker::run(const Target &target) const
 		argv.push_back("-pthread");
 
 	const Architecture &native_arch = builder.get_native_arch();
-	if(architecture->get_bits()!=native_arch.get_bits())
+	if(architecture->is_native() && architecture->get_bits()!=native_arch.get_bits())
 		argv.push_back(format("-m%d", architecture->get_bits()));
 
 	argv.push_back("-o");
 	argv.push_back(relative(bin.get_path(), work_dir).str());
 
+	for(BuildInfo::WordList::const_iterator i=binfo.keep_symbols.begin(); i!=binfo.keep_symbols.end(); ++i)
+		argv.push_back("-u"+*i);
+
 	bool static_link_ok = (binfo.libmode<=BuildInfo::STATIC);
-	bool need_l_objc = false;
 
 	const Target::Dependencies &depends = target.get_dependencies();
 	for(Target::Dependencies::const_iterator i=depends.begin(); i!=depends.end(); ++i)
@@ -224,13 +306,7 @@ Task *GnuLinker::Linker::run(const Target &target) const
 		Target *tgt = (*i)->get_real_target();
 
 		if(ObjectFile *obj = dynamic_cast<ObjectFile *>(tgt))
-		{
 			argv.push_back(relative(obj->get_path(), work_dir).str());
-			/* XXX This is a hack.  A more generic way is needed for tools to pass
-			information down the chain. */
-			if(obj->get_tool()->get_tag()=="OBJC")
-				need_l_objc = true;
-		}
 		else if(StaticLibrary *stlib = dynamic_cast<StaticLibrary *>(tgt))
 			argv.push_back((file?file:stlib)->get_path().str());
 		else if(SharedLibrary *shlib = dynamic_cast<SharedLibrary *>(tgt))
@@ -256,12 +332,20 @@ Task *GnuLinker::Linker::run(const Target &target) const
 			argv.push_back(i->substr(0, i->size()-10));
 		}
 
-	if(need_l_objc)
-		argv.push_back("-lobjc");
 	if(static_link_ok)
 		argv.push_back("-static");
-	else if(architecture->get_system()=="windows")
-		argv.push_back("-Wl,--enable-auto-import");
+	else
+	{
+		if(compiler_tag=="CXX")
+		{
+			BuildInfo::LibModeMap::const_iterator i = binfo.libmodes.find("stdc++");
+			if(i!=binfo.libmodes.end() && i->second<=BuildInfo::STATIC)
+				argv.push_back("-static-libstdc++");
+		}
+
+		if(architecture->get_system()=="windows")
+			argv.push_back("-Wl,--enable-auto-import");
+	}
 
 	return new ExternalTask(argv, work_dir);
 }