commit fb40b0537342e1acd5c2daf2ff6780c1d0d2883c
author Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com> Mon Jul 10 17:28:46 2023 +0800
committer Andrew Morton <akpm@linux-foundation.org> Fri Aug 18 10:18:58 2023 -0700
tree a44cea1f9349242ba7881ea6de25b95e4f1efa77
parent 02d7f74a04b1299ab2a0a9095f0e2d5aa3aed553

scripts/gdb: fix 'lx-lsmod' show the wrong size

'lsmod' shows total core layout size, so we need to sum up all the
sections in core layout in gdb scripts.

/ # lsmod
kasan_test 200704 0 - Live 0xffff80007f640000

Before patch:
(gdb) lx-lsmod
Address            Module                  Size  Used by
0xffff80007f640000 kasan_test             36864  0

After patch:
(gdb) lx-lsmod
Address            Module                  Size  Used by
0xffff80007f640000 kasan_test            200704  0

Link: https://lkml.kernel.org/r/20230710092852.31049-1-Kuan-Ying.Lee@mediatek.com
Fixes: b4aff7513df3 ("scripts/gdb: use mem instead of core_layout to get the module address")
Signed-off-by: Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com>
Reviewed-by: Pankaj Raghav <p.raghav@samsung.com>
Cc: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Cc: Chinwen Chang <chinwen.chang@mediatek.com>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Kieran Bingham <kbingham@kernel.org>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Qun-Wei Lin <qun-wei.lin@mediatek.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

scripts/gdb/linux/constants.py.in

diff --git a/scripts/gdb/linux/constants.py.in b/scripts/gdb/linux/constants.py.in
index 50a92c4..fab74ca 100644
--- a/scripts/gdb/linux/constants.py.in
+++ b/scripts/gdb/linux/constants.py.in
@@ -64,6 +64,9 @@
 
 /* linux/module.h */
 LX_GDBPARSED(MOD_TEXT)
+LX_GDBPARSED(MOD_DATA)
+LX_GDBPARSED(MOD_RODATA)
+LX_GDBPARSED(MOD_RO_AFTER_INIT)
 
 /* linux/mount.h */
 LX_VALUE(MNT_NOSUID)

scripts/gdb/linux/modules.py

diff --git a/scripts/gdb/linux/modules.py b/scripts/gdb/linux/modules.py
index 261f286..f76a43b 100644
--- a/scripts/gdb/linux/modules.py
+++ b/scripts/gdb/linux/modules.py
@@ -73,11 +73,17 @@
                 "        " if utils.get_long_type().sizeof == 8 else ""))
 
         for module in module_list():
-            layout = module['mem'][constants.LX_MOD_TEXT]
+            text = module['mem'][constants.LX_MOD_TEXT]
+            text_addr = str(text['base']).split()[0]
+            total_size = 0
+
+            for i in range(constants.LX_MOD_TEXT, constants.LX_MOD_RO_AFTER_INIT + 1):
+                total_size += module['mem'][i]['size']
+
             gdb.write("{address} {name:<19} {size:>8}  {ref}".format(
-                address=str(layout['base']).split()[0],
+                address=text_addr,
                 name=module['name'].string(),
-                size=str(layout['size']),
+                size=str(total_size),
                 ref=str(module['refcnt']['counter'] - 1)))
 
             t = self._module_use_type.get_type().pointer()