scripts/gdb/linux/constants.py.in | 3 +++ scripts/gdb/linux/modules.py | 12 +++++++++--- 2 files changed, 12 insertions(+), 3 deletions(-)
'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@mediatek.com>
---
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()
--
2.18.0Kindly 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@mediatek.com>
> ---
> 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
>
> '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@mediatek.com>
> ---
Just one minor comment, but apart from that, feel free to add:
Reviewed-by: Pankaj Raghav <p.raghav@samsung.com>
> 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()
We could slightly modify the code to remove the special condition with `i == constants.LX_MOD_TEXT`:
(I made changes on top of your patch)
diff --git a/scripts/gdb/linux/modules.py b/scripts/gdb/linux/modules.py
index 84933c4c1083..f76a43bfa15f 100644
--- a/scripts/gdb/linux/modules.py
+++ b/scripts/gdb/linux/modules.py
@@ -73,12 +73,12 @@ class LxLsmod(gdb.Command):
" " if utils.get_long_type().sizeof == 8 else ""))
for module in module_list():
+ 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):
- layout = module['mem'][i]
- if i == constants.LX_MOD_TEXT:
- text_addr = str(layout['base']).split()[0]
- total_size += layout['size']
+ total_size += module['mem'][i]['size']
gdb.write("{address} {name:<19} {size:>8} {ref}".format(
address=text_addr,
On Tue, 2023-07-04 at 14:11 +0200, Pankaj Raghav wrote:
>
> External email : Please do not click links or open attachments until
> you have verified the sender or the content.
> > '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@mediatek.com>
> > ---
>
> Just one minor comment, but apart from that, feel free to add:
>
> Reviewed-by: Pankaj Raghav <p.raghav@samsung.com>
>
> > 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()
>
> We could slightly modify the code to remove the special condition
> with `i == constants.LX_MOD_TEXT`:
>
> (I made changes on top of your patch)
Thanks for your suggestion.
I will upload v2.
>
> diff --git a/scripts/gdb/linux/modules.py
> b/scripts/gdb/linux/modules.py
> index 84933c4c1083..f76a43bfa15f 100644
> --- a/scripts/gdb/linux/modules.py
> +++ b/scripts/gdb/linux/modules.py
> @@ -73,12 +73,12 @@ class LxLsmod(gdb.Command):
> " " if utils.get_long_type().sizeof == 8 else
> ""))
>
> for module in module_list():
> + 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):
> - layout = module['mem'][i]
> - if i == constants.LX_MOD_TEXT:
> - text_addr = str(layout['base']).split()[0]
> - total_size += layout['size']
> + total_size += module['mem'][i]['size']
>
> gdb.write("{address} {name:<19}
> {size:>8} {ref}".format(
> address=text_addr,
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