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

[ Upstream commit fb40b05373 ]

'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: b4aff7513d ("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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Kuan-Ying Lee 2023-07-10 17:28:46 +08:00 committed by Greg Kroah-Hartman
parent 84f40e85bd
commit b49c9a2d85
2 changed files with 12 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
scripts/gdb/linux/constants.py.in
View File

@ -64,6 +64,9 @@ LX_GDBPARSED(IRQ_HIDDEN)
/* 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)

12
scripts/gdb/linux/modules.py
View File

@ -73,11 +73,17 @@ class LxLsmod(gdb.Command):
" " 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()