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scripts/gdb: convert ModuleList to generator function

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Analogously to the task list, convert the module list to a generator
function.  It noticeably simplifies the code.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Wessel <jason.wessel@windriver.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Ben Widawsky <ben@bwidawsk.net>
Cc: Borislav Petkov <bp@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jan Kiszka 2015-02-17 13:47:44 -08:00 committed by Linus Torvalds
parent 54e2289a34
commit fffb944c4e
2 changed files with 12 additions and 23 deletions
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29
scripts/gdb/linux/modules.py
View File

@ -19,31 +19,20 @@ from linux import cpus, utils
module_type = utils.CachedType("struct module") module_type = utils.CachedType("struct module")
class ModuleList: def module_list():
def __init__(self):
global module_type global module_type
self.module_ptr_type = module_type.get_type().pointer() module_ptr_type = module_type.get_type().pointer()
modules = gdb.parse_and_eval("modules") modules = gdb.parse_and_eval("modules")
self.curr_entry = modules['next'] entry = modules['next']
self.end_of_list = modules.address end_of_list = modules.address
def __iter__(self): while entry != end_of_list:
return self yield utils.container_of(entry, module_ptr_type, "list")
entry = entry['next']
def __next__(self):
entry = self.curr_entry
if entry != self.end_of_list:
self.curr_entry = entry['next']
return utils.container_of(entry, self.module_ptr_type, "list")
else:
raise StopIteration
def next(self):
return self.__next__()
def find_module_by_name(name): def find_module_by_name(name):
for module in ModuleList(): for module in module_list():
if module['name'].string() == name: if module['name'].string() == name:
return module return module
return None return None
@ -83,7 +72,7 @@ class LxLsmod(gdb.Command):
"Address{0} Module Size Used by\n".format( "Address{0} Module Size Used by\n".format(
" " if utils.get_long_type().sizeof == 8 else "")) " " if utils.get_long_type().sizeof == 8 else ""))
for module in ModuleList(): for module in module_list():
ref = 0 ref = 0
module_refptr = module['refptr'] module_refptr = module['refptr']
for cpu in cpus.CpuList("cpu_possible_mask"): for cpu in cpus.CpuList("cpu_possible_mask"):

2
scripts/gdb/linux/symbols.py
View File

@ -133,7 +133,7 @@ lx-symbols command."""
gdb.execute("symbol-file vmlinux") gdb.execute("symbol-file vmlinux")
self.loaded_modules = [] self.loaded_modules = []
module_list = modules.ModuleList() module_list = modules.module_list()
if not module_list: if not module_list:
gdb.write("no modules found\n") gdb.write("no modules found\n")
else: else: