efi_loader: refactor efi_setup_loaded_image()

Create the handle of loaded images and the EFI_LOADED_IMAGE_PROTOCOL
inside efi_setup_loaded_image(). Do not use local variables.

Currently we expect the loaded image handle to point to the loaded image
protocol. Additionally we have appended private fields to the protocol.

With the patch the handle points to a loaded image object and the private
fields are added here. This matches how we handle the net and the gop
object.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
diff --git a/include/efi_loader.h b/include/efi_loader.h
index 5d522f1..34e44c6 100644
--- a/include/efi_loader.h
+++ b/include/efi_loader.h
@@ -184,6 +184,20 @@
 };
 
 /**
+ * struct efi_loaded_image_obj - handle of a loaded image
+ */
+struct efi_loaded_image_obj {
+	/* Generic EFI object parent class data */
+	struct efi_object parent;
+	void *reloc_base;
+	aligned_u64 reloc_size;
+	efi_status_t exit_status;
+	struct jmp_buf_data exit_jmp;
+	EFIAPI efi_status_t (*entry)(efi_handle_t image_handle,
+				     struct efi_system_table *st);
+};
+
+/**
  * struct efi_event
  *
  * @link:		Link to list of all events
@@ -264,7 +278,8 @@
 /* Called from places to check whether a timer expired */
 void efi_timer_check(void);
 /* PE loader implementation */
-void *efi_load_pe(void *efi, struct efi_loaded_image *loaded_image_info);
+void *efi_load_pe(struct efi_loaded_image_obj *handle, void *efi,
+		  struct efi_loaded_image *loaded_image_info);
 /* Called once to store the pristine gd pointer */
 void efi_save_gd(void);
 /* Special case handler for error/abort that just tries to dtrt to get
@@ -345,14 +360,12 @@
 /* Adds new or overrides configuration table entry to the system table */
 efi_status_t efi_install_configuration_table(const efi_guid_t *guid, void *table);
 /* Sets up a loaded image */
-efi_status_t efi_setup_loaded_image(
-			struct efi_loaded_image *info, struct efi_object *obj,
-			struct efi_device_path *device_path,
-			struct efi_device_path *file_path);
+efi_status_t efi_setup_loaded_image(struct efi_device_path *device_path,
+				    struct efi_device_path *file_path,
+				    struct efi_loaded_image_obj **handle_ptr,
+				    struct efi_loaded_image **info_ptr);
 efi_status_t efi_load_image_from_path(struct efi_device_path *file_path,
 				      void **buffer);
-/* Print information about a loaded image */
-efi_status_t efi_print_image_info(struct efi_loaded_image *image, void *pc);
 /* Print information about all loaded images */
 void efi_print_image_infos(void *pc);