base: remove dependency from deprecated config lib

Issue #1959

repos/base/src/lib/ldso/include/linker.h

@@ -53,6 +53,13 @@ namespace Linker {
 	 */
 	extern bool bind_now;
 
+	/**
+	 * Print diagnostic information
+	 *
+	 * The value corresponds to the config attribute "ld_verbose".
+	 */
+	extern bool verbose;
+
 	/**
 	 * Find symbol via index
 	 *

repos/base/src/lib/ldso/main.cc

@@ -14,7 +14,7 @@
 /* Genode includes */
 #include <base/component.h>
 #include <base/printf.h>
-#include <os/config.h>
+#include <base/attached_rom_dataspace.h>
 #include <util/list.h>
 #include <util/string.h>
 #include <base/thread.h>
@@ -37,6 +37,7 @@ namespace Linker {
 
 static    Binary *binary = 0;
 bool      Linker::bind_now = false;
+bool      Linker::verbose  = false;
 Link_map *Link_map::first;
 
 /**
@@ -550,11 +551,13 @@ void Component::construct(Genode::Env &env)
 	if (!Ld::linker()->file())
 		Ld::linker()->load_phdr();
 
-	/* read configuration */
+	/* read configuration, release ROM afterwards */
 	try {
-		/* bind immediately */
-		bind_now = Genode::config()->xml_node().attribute("ld_bind_now").has_value("yes");
-	} catch (...) { }
+		Genode::Attached_rom_dataspace config(env, "config");
+
+		bind_now = config.xml().attribute_value("ld_bind_now", false);
+		verbose  = config.xml().attribute_value("ld_verbose",  false);
+	} catch (Genode::Rom_connection::Rom_connection_failed) { }
 
 	/* load binary and all dependencies */
 	try {
@@ -566,7 +569,7 @@ void Component::construct(Genode::Env &env)
 
 	/* print loaded object information */
 	try {
-		if (Genode::config()->xml_node().attribute("ld_verbose").has_value("yes")) {
+		if (verbose) {
 			PINF("  %lx .. %lx: stack area",
 			     Genode::Thread::stack_area_virtual_base(),
 			     Genode::Thread::stack_area_virtual_base() +

repos/base/src/lib/ldso/shared_object.cc

@@ -11,9 +11,6 @@
  * under the terms of the GNU General Public License version 2.
  */
 
-/* Genode includes */
-#include <os/config.h>
-
 /* local includes */
 #include <linker.h>
 
@@ -70,7 +67,7 @@ Genode::Shared_object::Shared_object(char const *file, unsigned flags)
 
 		/* print loaded object information */
 		try {
-			if (Genode::config()->xml_node().attribute("ld_verbose").has_value("yes"))
+			if (Linker::verbose)
 				Linker::dump_link_map(to_root(_handle)->dep.head()->obj);
 		} catch (...) {  }
 

repos/base/src/test/thread/main.cc

@@ -18,11 +18,10 @@
 #include <base/thread.h>
 #include <base/component.h>
 #include <base/heap.h>
-#include <os/config.h>
+#include <base/attached_rom_dataspace.h>
 #include <util/volatile_object.h>
 #include <cpu_session/connection.h>
 
-
 using namespace Genode;
 
 
@@ -340,7 +339,7 @@ void Component::construct(Env &env)
 {
 	log("--- thread test started ---");
 
-	Xml_node config = Genode::config()->xml_node();
+	Attached_rom_dataspace config(env, "config");
 
 	try {
 		test_stack_alloc(env);
@@ -348,7 +347,7 @@ void Component::construct(Env &env)
 		test_main_thread();
 		test_cpu_session(env);
 
-		if (config.has_sub_node("pause_resume"))
+		if (config.xml().has_sub_node("pause_resume"))
 			test_pause_resume(env);
 
 		test_create_as_many_threads(env);

repos/base/src/test/thread/target.mk

@@ -1,3 +1,3 @@
 TARGET = test-thread
 SRC_CC = main.cc
-LIBS   = base config
+LIBS   = base