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-rw-r--r--scripts/gdb/linux/vmalloc.py8
1 files changed, 6 insertions, 2 deletions
diff --git a/scripts/gdb/linux/vmalloc.py b/scripts/gdb/linux/vmalloc.py
index 48e4a4fae7bb..d3c8a0274d1e 100644
--- a/scripts/gdb/linux/vmalloc.py
+++ b/scripts/gdb/linux/vmalloc.py
@@ -10,8 +10,9 @@ import gdb
import re
from linux import lists, utils, stackdepot, constants, mm
-vmap_area_type = utils.CachedType('struct vmap_area')
-vmap_area_ptr_type = vmap_area_type.get_type().pointer()
+if constants.LX_CONFIG_MMU:
+ vmap_area_type = utils.CachedType('struct vmap_area')
+ vmap_area_ptr_type = vmap_area_type.get_type().pointer()
def is_vmalloc_addr(x):
pg_ops = mm.page_ops().ops
@@ -25,6 +26,9 @@ class LxVmallocInfo(gdb.Command):
super(LxVmallocInfo, self).__init__("lx-vmallocinfo", gdb.COMMAND_DATA)
def invoke(self, arg, from_tty):
+ if not constants.LX_CONFIG_MMU:
+ raise gdb.GdbError("Requires MMU support")
+
vmap_area_list = gdb.parse_and_eval('vmap_area_list')
for vmap_area in lists.list_for_each_entry(vmap_area_list, vmap_area_ptr_type, "list"):
if not vmap_area['vm']: