Add support for statically-built plug-ins

[babeltrace.git] / include / babeltrace / plugin / component-factory-internal.h

diff --git a/include/babeltrace/plugin/component-factory-internal.h b/include/babeltrace/plugin/component-factory-internal.h
index 9cb07ec22f526ea79ed3e809f49f1fc728768773..10a2b7872b77a7794784cec53dd4df77b10210e9 100644 (file)
--- a/include/babeltrace/plugin/component-factory-internal.h
+++ b/include/babeltrace/plugin/component-factory-internal.h
@@ -36,6 +36,33 @@
 #include <babeltrace/plugin/plugin.h>
 #include <glib.h>
 
+#define SECTION_BEGIN(_name)   &__start_##_name
+#define SECTION_END(_name)     &__stop_##_name
+
+#define SECTION_ELEMENT_COUNT(_name) (SECTION_END(_name) - SECTION_BEGIN(_name))
+
+#define DECLARE_SECTION(_type, _name)                          \
+       extern _type const __start_##_name __attribute((weak)); \
+       extern _type const __stop_##_name __attribute((weak))
+
+#define DECLARE_PLUG_IN_SECTIONS                                               \
+       DECLARE_SECTION(bt_plugin_register_func, __plugin_register_funcs);      \
+       DECLARE_SECTION(const char *, __plugin_names);                          \
+       DECLARE_SECTION(const char *, __plugin_authors);                        \
+       DECLARE_SECTION(const char *, __plugin_licenses);                       \
+       DECLARE_SECTION(const char *, __plugin_descriptions)
+
+#define PRINT_SECTION(_printer, _name)                                 \
+       _printer("Section " #_name " [%p - %p], (%zu elements)\n",      \
+       SECTION_BEGIN(_name), SECTION_END(_name), SECTION_ELEMENT_COUNT(_name))
+
+#define PRINT_PLUG_IN_SECTIONS(_printer)                                       \
+       PRINT_SECTION(_printer, __plugin_register_funcs);                       \
+       PRINT_SECTION(_printer, __plugin_names);                                \
+       PRINT_SECTION(_printer, __plugin_authors);                              \
+       PRINT_SECTION(_printer, __plugin_licenses);                             \
+       PRINT_SECTION(_printer, __plugin_descriptions)
+
 struct bt_component_factory {
        struct bt_object base;
        /** Array of pointers to struct bt_component_class */