diff --git a/bsp/hc32/tools/sdk_dist.py b/bsp/hc32/tools/sdk_dist.py
index 4bbeb459505..300e66ab528 100644
--- a/bsp/hc32/tools/sdk_dist.py
+++ b/bsp/hc32/tools/sdk_dist.py
@@ -13,8 +13,9 @@ def dist_do_building(BSP_ROOT, dist_dir):
     print("=> copy hc32 bsp library")
     library_dir = os.path.join(dist_dir, 'libraries')
     library_path = os.path.join(os.path.dirname(BSP_ROOT), 'libraries')
-    bsp_copy_files(os.path.join(library_path, rtconfig.BSP_LIBRARY_TYPE),
-                   os.path.join(library_dir, rtconfig.BSP_LIBRARY_TYPE))
+    if rtconfig.BSP_LIBRARY_TYPE is not None:
+        bsp_copy_files(os.path.join(library_path, rtconfig.BSP_LIBRARY_TYPE),
+                    os.path.join(library_dir, rtconfig.BSP_LIBRARY_TYPE))
 
     print("=> copy bsp drivers")
     bsp_copy_files(os.path.join(library_path, 'hc32_drivers'), os.path.join(library_dir, 'hc32_drivers'))
diff --git a/components/drivers/block/partitions/efi.h b/components/drivers/block/partitions/efi.h
index 6a10ec884f4..72300d69c18 100644
--- a/components/drivers/block/partitions/efi.h
+++ b/components/drivers/block/partitions/efi.h
@@ -30,14 +30,14 @@
 #ifndef __UUID_H__
 #define UUID_SIZE 16
 
-typedef struct
+typedef rt_packed(struct
 {
     rt_uint8_t b[UUID_SIZE];
-} guid_t;
+} guid_t);
 #endif /* __UUID_H__ */
 
 #ifndef __EFI_H__
-typedef guid_t efi_guid_t rt_align(4);
+typedef rt_packed(guid_t) efi_guid_t rt_align(4);
 
 #define EFI_GUID(a, b, c, d...) (efi_guid_t)                                \
 {{                                                                          \
diff --git a/components/drivers/include/drivers/nvme.h b/components/drivers/include/drivers/nvme.h
index 1eca5d9caa3..4df2c420f9e 100644
--- a/components/drivers/include/drivers/nvme.h
+++ b/components/drivers/include/drivers/nvme.h
@@ -717,12 +717,12 @@ enum
     RT_NVME_CTRL_CTRATT_UUID_LIST               = 1 << 9,
 };
 
-struct rt_nvme_lba_format
+rt_packed(struct rt_nvme_lba_format
 {
     rt_le16_t   ms;         /* Metadata size */
     rt_uint8_t  ds;         /* Data size */
     rt_uint8_t  rp;         /* Relative performance */
-};
+});
 
 rt_packed(struct rt_nvme_id_ns
 {
diff --git a/include/rtcompiler.h b/include/rtcompiler.h
index 012c85cb608..27adcaef37e 100644
--- a/include/rtcompiler.h
+++ b/include/rtcompiler.h
@@ -19,7 +19,7 @@
 #if __ARMCC_VERSION >= 6010050
 #define rt_packed(declare)          declare __attribute__((packed))
 #else
-#define rt_packed(declare)          declare
+#define rt_packed(declare)          __packed declare
 #endif
 #define rt_weak                     __attribute__((weak))
 #define rt_typeof                   __typeof