dummy/linux-stable-mirror
1
0
Fork 1
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ synced 2025-04-19 20:58:31 +09:00
Code Issues Packages Projects Releases Wiki Activity

scripts/gdb/linux/symbols.py: address changes to module_sect_attrs

Browse Source 
When loading symbols from kernel modules we used to iterate
from 0 to module_sect_attrs::nsections, in order to
retrieve their name and address.

However module_sect_attrs::nsections has been removed from
the struct by a previous commit.

Re-arrange the iteration by accessing all items in
module_sect_attrs::grp::bin_attrs[] until NULL is found
(it's a NULL terminated array).

At the same time the symbol address cannot be extracted
from module_sect_attrs::attrs[]::address anymore because
it has also been deleted. Fetch it from
module_sect_attrs::grp::bin_attrs[]::private as described
in 4b2c11e4aaf7.

Link: https://lkml.kernel.org/r/20250221204034.4430-1-antonio@mandelbit.com
Fixes: d8959b947a8d ("module: sysfs: Drop member 'module_sect_attrs::nsections'")
Fixes: 4b2c11e4aaf7 ("module: sysfs: Drop member 'module_sect_attr::address'")
Signed-off-by: Antonio Quartulli <antonio@mandelbit.com>
Reviewed-by: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Thomas Weißschuh <linux@weissschuh.net>
Cc: Kieran Bingham <kbingham@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Antonio Quartulli 2025-02-21 21:40:34 +01:00 committed by Andrew Morton
parent f873136416
commit e0349c46cb
1 changed files with 9 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
scripts/gdb/linux/symbols.py
View File

@ -15,6 +15,7 @@ import gdb
import os
import re
from itertools import count
from linux import modules, utils, constants
@ -95,10 +96,14 @@ lx-symbols command."""
except gdb.error:
return str(module_addr)
attrs = sect_attrs['attrs']
section_name_to_address = {
attrs[n]['battr']['attr']['name'].string(): attrs[n]['address']
for n in range(int(sect_attrs['nsections']))}
section_name_to_address = {}
for i in count():
# this is a NULL terminated array
if sect_attrs['grp']['bin_attrs'][i] == 0x0:
break
attr = sect_attrs['grp']['bin_attrs'][i].dereference()
section_name_to_address[attr['attr']['name'].string()] = attr['private']
textaddr = section_name_to_address.get(".text", module_addr)
args = []