From 53df62e6f94e30bc8f099af7c858d38a94fddf4b Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sat, 18 Oct 2008 19:03:30 +0200
Subject: Use dlopen() directly and don't depend on GModule

---
 acinclude.m4    |  8 --------
 configure.ac    |  4 +++-
 src/Makefile.am |  9 +++++----
 src/plugin.c    | 62 +++++++++++++++++++++++++--------------------------------
 4 files changed, 35 insertions(+), 48 deletions(-)

diff --git a/acinclude.m4 b/acinclude.m4
index 45dd9096..c779a843 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -115,14 +115,6 @@ AC_DEFUN([AC_PATH_GLIB], [
 	AC_SUBST(GLIB_LIBS)
 ])
 
-AC_DEFUN([AC_PATH_GMODULE], [
-	PKG_CHECK_MODULES(GMODULE, gmodule-2.0, dummy=yes,
-				AC_MSG_ERROR(GModule library is required))
-	AC_CHECK_LIB(dl, dlopen, dummy=yes, dummy=no)
-	AC_SUBST(GMODULE_CFLAGS)
-	AC_SUBST(GMODULE_LIBS)
-])
-
 AC_DEFUN([AC_PATH_GSTREAMER], [
 	PKG_CHECK_MODULES(GSTREAMER, gstreamer-0.10 gstreamer-plugins-base-0.10, gstreamer_found=yes, gstreamer_found=no)
 	AC_SUBST(GSTREAMER_CFLAGS)
diff --git a/configure.ac b/configure.ac
index 8fa7282b..31000a2b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -26,9 +26,11 @@ GTK_DOC_CHECK
 
 AC_FUNC_PPOLL
 
+AC_CHECK_LIB(dl, dlopen, dummy=yes,
+			AC_MSG_ERROR(dynamic linking loader is required))
+
 AC_PATH_DBUS
 AC_PATH_GLIB
-AC_PATH_GMODULE
 AC_PATH_ALSA
 AC_PATH_GSTREAMER
 AC_PATH_USB
diff --git a/src/Makefile.am b/src/Makefile.am
index 2a353a47..af525773 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -22,7 +22,9 @@ bluetoothd_SOURCES = main.c security.c hcid.h sdpd.h \
 	device.h device.c dbus-common.c dbus-common.h dbus-hci.h dbus-hci.c
 
 bluetoothd_LDADD = $(top_builddir)/common/libhelper.a \
-	@GDBUS_LIBS@ @GMODULE_LIBS@ @GLIB_LIBS@ @DBUS_LIBS@ @BLUEZ_LIBS@
+			@GDBUS_LIBS@ @GLIB_LIBS@ @DBUS_LIBS@ @BLUEZ_LIBS@ -ldl
+
+bluetoothd_LDFLAGS = -Wl,--export-dynamic
 
 if MAINTAINER_MODE
 plugindir = $(abs_top_srcdir)/plugins
@@ -30,9 +32,8 @@ else
 plugindir = $(libdir)/bluetooth/plugins
 endif
 
-AM_CFLAGS = @BLUEZ_CFLAGS@ @DBUS_CFLAGS@ \
-		@GLIB_CFLAGS@ @GMODULE_CFLAGS@ @GDBUS_CFLAGS@ \
-					-DPLUGINDIR=\""$(plugindir)"\"
+AM_CFLAGS = @BLUEZ_CFLAGS@ @DBUS_CFLAGS@ @GLIB_CFLAGS@ @GDBUS_CFLAGS@ \
+						-DPLUGINDIR=\""$(plugindir)"\"
 
 INCLUDES = -I$(top_srcdir)/common
 
diff --git a/src/plugin.c b/src/plugin.c
index 380d482c..ca4de256 100644
--- a/src/plugin.c
+++ b/src/plugin.c
@@ -25,40 +25,42 @@
 #include <config.h>
 #endif
 
-#include <glib.h>
-#include <gmodule.h>
+#include <errno.h>
+#include <dlfcn.h>
 #include <string.h>
-
 #include <sys/stat.h>
-#include <errno.h>
-
-#include <bluetooth/bluetooth.h>
 
-#include "logging.h"
+#include <glib.h>
 
 #include "plugin.h"
+#include "logging.h"
 
 static GSList *plugins = NULL;
 
 struct bluetooth_plugin {
-	GModule *module;
+	void *handle;
 	struct bluetooth_plugin_desc *desc;
 };
 
-static gboolean add_plugin(GModule *module, struct bluetooth_plugin_desc *desc)
+static gboolean add_plugin(void *handle, struct bluetooth_plugin_desc *desc)
 {
 	struct bluetooth_plugin *plugin;
 
-	if (desc->init() < 0)
+	if (desc->init == NULL)
 		return FALSE;
 
 	plugin = g_try_new0(struct bluetooth_plugin, 1);
 	if (plugin == NULL)
 		return FALSE;
 
-	plugin->module = module;
+	plugin->handle = handle;
 	plugin->desc = desc;
 
+	if (desc->init() < 0) {
+		g_free(plugin);
+		return FALSE;
+	}
+
 	plugins = g_slist_append(plugins, plugin);
 
 	return TRUE;
@@ -110,8 +112,8 @@ gboolean plugin_init(GKeyFile *config)
 	}
 
 	while ((file = g_dir_read_name(dir)) != NULL) {
-		GModule *module;
 		struct bluetooth_plugin_desc *desc;
+		void *handle;
 		gchar *filename;
 		struct stat st;
 
@@ -125,39 +127,31 @@ gboolean plugin_init(GKeyFile *config)
 		filename = g_build_filename(PLUGINDIR, file, NULL);
 
 		if (stat(filename, &st) < 0) {
-			error("Can't load plugin %s: %s (%d)", filename,
-				strerror(errno), errno);
+			error("Can't find plugin %s: %s", filename,
+							strerror(errno));
 			g_free(filename);
 			continue;
 		}
 
-		module = g_module_open(filename, G_MODULE_BIND_LOCAL);
-		if (module == NULL) {
-			error("Can't load plugin: %s", g_module_error());
+		handle = dlopen(filename, RTLD_NOW);
+		if (handle == NULL) {
+			error("Can't load plugin %s: %s", filename,
+								dlerror());
 			g_free(filename);
 			continue;
 		}
 
 		g_free(filename);
 
-		debug("%s", g_module_name(module));
-
-		if (g_module_symbol(module, "bluetooth_plugin_desc",
-					(gpointer) &desc) == FALSE) {
-			error("Can't load plugin description");
-			g_module_close(module);
+		desc = dlsym(handle, "bluetooth_plugin_desc");
+		if (desc == NULL) {
+			error("Can't load plugin description: %s", dlerror());
+			dlclose(handle);
 			continue;
 		}
 
-		if (desc == NULL || desc->init == NULL) {
-			g_module_close(module);
-			continue;
-		}
-
-		if (add_plugin(module, desc) == FALSE) {
-			error("Can't init plugin %s", g_module_name(module));
-			g_module_close(module);
-		}
+		if (add_plugin(handle, desc) == FALSE)
+			dlclose(handle);
 	}
 
 	g_dir_close(dir);
@@ -176,12 +170,10 @@ void plugin_cleanup(void)
 	for (list = plugins; list; list = list->next) {
 		struct bluetooth_plugin *plugin = list->data;
 
-		debug("%s", g_module_name(plugin->module));
-
 		if (plugin->desc->exit)
 			plugin->desc->exit();
 
-		g_module_close(plugin->module);
+		dlclose(plugin->handle);
 
 		g_free(plugin);
 	}
-- 
cgit