scripts/gdb: change kernel config dumping method

MAGIC_START("IKCFG_ST") and MAGIC_END("IKCFG_ED") are moved out from the kernel_config_data variable. Thus, we parse kernel_config_data directly instead of considering offset of MAGIC_START and MAGIC_END. Fixes: 13610aa ("kernel/configs: use .incbin directive to embed config_data.gz") Signed-off-by: Kuan-Ying Lee <[email protected]> Signed-off-by: Masahiro Yamada <[email protected]>
ambv · Jun 11, 2022 · 1f7a6cf · 1f7a6cf
1 parent da4288b
commit 1f7a6cf
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/scripts/gdb/linux/config.py b/scripts/gdb/linux/config.py
@@ -24,9 +24,9 @@ def invoke(self, arg, from_tty):
             filename = arg
 
         try:
-            py_config_ptr = gdb.parse_and_eval("kernel_config_data + 8")
-            py_config_size = gdb.parse_and_eval(
-                    "sizeof(kernel_config_data) - 1 - 8 * 2")
+            py_config_ptr = gdb.parse_and_eval("&kernel_config_data")
+            py_config_ptr_end = gdb.parse_and_eval("&kernel_config_data_end")
+            py_config_size = py_config_ptr_end - py_config_ptr
         except gdb.error as e:
             raise gdb.GdbError("Can't find config, enable CONFIG_IKCONFIG?")