45 lines
1.5 KiB
Python
45 lines
1.5 KiB
Python
class KthreadListDumpCmd(gdb.Command):
|
|
"""Prints the kthread list"""
|
|
|
|
def __init__(self):
|
|
super(KthreadListDumpCmd, self).__init__(
|
|
"kthread_list_dump", gdb.COMMAND_USER
|
|
)
|
|
|
|
def _kthread_list_to_str(self, val):
|
|
"""Walk through the Kthread list.
|
|
|
|
We will simply follow the 'next' pointers until we encounter the HEAD again
|
|
"""
|
|
idx = 0
|
|
head = val
|
|
kthread_ptr = val
|
|
result = ""
|
|
while kthread_ptr != 0 and (idx == 0 or kthread_ptr != head) :
|
|
name = kthread_ptr["name"]
|
|
result += "\n%d: Addr: 0x%x, name: %s" % (idx, kthread_ptr, name)
|
|
kthread_ptr = kthread_ptr["next"]
|
|
idx += 1
|
|
result = ("Found a Linked List with %d kthread:" % idx) + result
|
|
return result
|
|
|
|
def complete(self, text, word):
|
|
# We expect the argument passed to be a symbol so fallback to the
|
|
# internal tab-completion handler for symbols
|
|
return gdb.COMPLETE_SYMBOL
|
|
|
|
def invoke(self, args, from_tty):
|
|
# We can pass args here and use Python CLI utilities like argparse
|
|
# to do argument parsing
|
|
print("Args Passed: %s" % args)
|
|
|
|
kthread_ptr_val = gdb.parse_and_eval(args)
|
|
if str(kthread_ptr_val.type) != "struct kthread *":
|
|
print("Expected pointer argument of type (struct kthread *)")
|
|
return
|
|
|
|
print(self._kthread_list_to_str(kthread_ptr_val))
|
|
|
|
KthreadListDumpCmd()
|
|
|