X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fgnulinker.cpp;h=75a1bac280609086da046f86e3c71e1cc115d5e5;hb=8f8f10fe41bbb68866e8fb05f8cbab0b325dc7da;hp=a56d716780817cdd63f3e9536584bc242ac19b78;hpb=f182274c67f6e22cef57df560d33cd180a72f167;p=builder.git

diff --git a/source/gnulinker.cpp b/source/gnulinker.cpp
index a56d716..75a1bac 100644
--- a/source/gnulinker.cpp
+++ b/source/gnulinker.cpp
@@ -21,13 +21,18 @@
 using namespace std;
 using namespace Msp;
 
-GnuLinker::GnuLinker(Builder &b, const Architecture &a):
+GnuLinker::GnuLinker(Builder &b, const Architecture &a, const FS::Path &sysroot):
 	Tool(b, a, "LINK")
 {
 	input_suffixes.push_back(".o");
 	input_suffixes.push_back(".a");
 
-	if(architecture->is_native())
+	if(!sysroot.empty())
+	{
+		build_info.sysroot = sysroot;
+		system_path.push_back(sysroot/"usr"/"lib");
+	}
+	else if(architecture->is_native())
 	{
 		system_path.push_back("/lib");
 		system_path.push_back("/usr/lib");
@@ -144,8 +149,11 @@ string GnuLinker::Linker::create_build_signature(const BuildInfo &binfo) const
 		result += 'd';
 	if(binfo.strip)
 		result += 's';
-	result += ",l";
-	result += join(binfo.libs.begin(), binfo.libs.end(), ",l");
+	if(!binfo.libs.empty())
+	{
+		result += ",l";
+		result += join(binfo.libs.begin(), binfo.libs.end(), ",l");
+	}
 	return result;
 }
 
@@ -166,9 +174,7 @@ 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))
 	{
@@ -196,7 +202,13 @@ 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());
+
 	for(BuildInfo::PathList::const_iterator i=binfo.libpath.begin(); i!=binfo.libpath.end(); ++i)
 		argv.push_back("-L"+i->str());
 	if(binfo.strip)
@@ -205,14 +217,16 @@ 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)
@@ -221,13 +235,7 @@ 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))
@@ -253,8 +261,6 @@ 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")