Kindly ping, any comment?
Cc linux-modules.
Thanks,
Kuan-Ying Lee
On Tue, 2023-06-20 at 17:48 +0800, Kuan-Ying Lee wrote:
> '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
>
> Fixes: b4aff7513df3 ("scripts/gdb: use mem instead of core_layout to
> get the module address")
> Signed-off-by: Kuan-Ying Lee <Kuan-Ying.Lee@xxxxxxxxxxxx>
> ---
> scripts/gdb/linux/constants.py.in | 3 +++
> scripts/gdb/linux/modules.py | 12 +++++++++---
> 2 files changed, 12 insertions(+), 3 deletions(-)
>
> diff --git a/scripts/gdb/linux/constants.py.in
> b/scripts/gdb/linux/constants.py.in
> index 50a92c4e9984..fab74ca9df6f 100644
> --- a/scripts/gdb/linux/constants.py.in
> +++ b/scripts/gdb/linux/constants.py.in
> @@ -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)
> diff --git a/scripts/gdb/linux/modules.py
> b/scripts/gdb/linux/modules.py
> index 261f28640f4c..84933c4c1083 100644
> --- a/scripts/gdb/linux/modules.py
> +++ b/scripts/gdb/linux/modules.py
> @@ -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]
> + total_size = 0
> + for i in range(constants.LX_MOD_TEXT,
> constants.LX_MOD_RO_AFTER_INIT + 1):
> + layout = module['mem'][i]
> + if i == constants.LX_MOD_TEXT:
> + text_addr = str(layout['base']).split()[0]
> + total_size += layout['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()
> --
> 2.18.0
>
