mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-27 08:35:10 +07:00
ca3f172c19
Commit 2f35c41f58 ("module: Replace module_ref with atomic_t refcnt")
changes the way refcnt is handled but did not update the gdb script to
use the new variable.
Since refcnt is not per-cpu anymore, we can directly read its value.
Signed-off-by: Adrien Schildknecht <adrien+dev@schischi.me>
Reviewed-by: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Pantelis Koukousoulas <pktoss@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
97 lines
2.7 KiB
Python
97 lines
2.7 KiB
Python
#
|
|
# gdb helper commands and functions for Linux kernel debugging
|
|
#
|
|
# module tools
|
|
#
|
|
# Copyright (c) Siemens AG, 2013
|
|
#
|
|
# Authors:
|
|
# Jan Kiszka <jan.kiszka@siemens.com>
|
|
#
|
|
# This work is licensed under the terms of the GNU GPL version 2.
|
|
#
|
|
|
|
import gdb
|
|
|
|
from linux import cpus, utils
|
|
|
|
|
|
module_type = utils.CachedType("struct module")
|
|
|
|
|
|
def module_list():
|
|
global module_type
|
|
module_ptr_type = module_type.get_type().pointer()
|
|
modules = gdb.parse_and_eval("modules")
|
|
entry = modules['next']
|
|
end_of_list = modules.address
|
|
|
|
while entry != end_of_list:
|
|
yield utils.container_of(entry, module_ptr_type, "list")
|
|
entry = entry['next']
|
|
|
|
|
|
def find_module_by_name(name):
|
|
for module in module_list():
|
|
if module['name'].string() == name:
|
|
return module
|
|
return None
|
|
|
|
|
|
class LxModule(gdb.Function):
|
|
"""Find module by name and return the module variable.
|
|
|
|
$lx_module("MODULE"): Given the name MODULE, iterate over all loaded modules
|
|
of the target and return that module variable which MODULE matches."""
|
|
|
|
def __init__(self):
|
|
super(LxModule, self).__init__("lx_module")
|
|
|
|
def invoke(self, mod_name):
|
|
mod_name = mod_name.string()
|
|
module = find_module_by_name(mod_name)
|
|
if module:
|
|
return module.dereference()
|
|
else:
|
|
raise gdb.GdbError("Unable to find MODULE " + mod_name)
|
|
|
|
|
|
LxModule()
|
|
|
|
|
|
class LxLsmod(gdb.Command):
|
|
"""List currently loaded modules."""
|
|
|
|
_module_use_type = utils.CachedType("struct module_use")
|
|
|
|
def __init__(self):
|
|
super(LxLsmod, self).__init__("lx-lsmod", gdb.COMMAND_DATA)
|
|
|
|
def invoke(self, arg, from_tty):
|
|
gdb.write(
|
|
"Address{0} Module Size Used by\n".format(
|
|
" " if utils.get_long_type().sizeof == 8 else ""))
|
|
|
|
for module in module_list():
|
|
gdb.write("{address} {name:<19} {size:>8} {ref}".format(
|
|
address=str(module['module_core']).split()[0],
|
|
name=module['name'].string(),
|
|
size=str(module['core_size']),
|
|
ref=str(module['refcnt']['counter'])))
|
|
|
|
source_list = module['source_list']
|
|
t = self._module_use_type.get_type().pointer()
|
|
entry = source_list['next']
|
|
first = True
|
|
while entry != source_list.address:
|
|
use = utils.container_of(entry, t, "source_list")
|
|
gdb.write("{separator}{name}".format(
|
|
separator=" " if first else ",",
|
|
name=use['source']['name'].string()))
|
|
first = False
|
|
entry = entry['next']
|
|
gdb.write("\n")
|
|
|
|
|
|
LxLsmod()
|