lib/module: use RTLD_NODELETE as a workaround for buggy dlclose

lib/module.c

@@ -38,7 +38,9 @@ static int load_library(struct kr_module *module, const char *name, const char *
 		return kr_error(ENOMEM);
 	}
 
-	module->lib = dlopen(lib_path, RTLD_LAZY);
+	/* Workaround for buggy _fini/__attribute__((destructor)) and dlclose(),
+	 * this keeps the library mapped until the program finishes though. */
+	module->lib = dlopen(lib_path, RTLD_NOW | RTLD_NODELETE);
 	if (module->lib) {
 		return kr_ok();
 	}

tests/test_module.c

@@ -19,8 +19,6 @@
 
 #include "lib/module.h"
 
-mm_ctx_t global_mm;
-
 static void test_module_params(void **state)
 {
 	struct kr_module module;
@@ -45,15 +43,13 @@ static void test_module_c(void **state)
 
 static void test_module_go(void **state)
 {
+	/* Mock Go module fails on version check. */
 	struct kr_module module;
 	assert_int_equal(kr_module_load(&module, "mock_gomodule", "tests"), kr_error(ENOTSUP));
-	kr_module_unload(&module);
 }
 
 int main(void)
 {
-	test_mm_ctx_init(&global_mm);
-
 	const UnitTest tests[] = {
 		unit_test(test_module_params),
 		unit_test(test_module_builtin),

tests/tests.mk

@@ -58,7 +58,7 @@ $(eval $(call make_shared,_test_integration,tests))
 
 # Targets
 .PHONY: check-integration check-unit tests tests-clean
-check-integration: check-unit libmock_calls _test_integration
+check-integration: libmock_calls _test_integration
 	$(call preload_LIBS) tests/test_integration.py tests/testdata
 check-unit: $(foreach test,$(tests_BIN),$(test)-run)
 tests: check-unit check-integration