diff options
| author | Leonard Crestez | 2019-05-14 15:46:05 -0700 |
|---|---|---|
| committer | Linus Torvalds | 2019-05-14 19:52:52 -0700 |
| commit | 47d0d12855c9eee9dac72d2359f2ccfac3f7f501 (patch) | |
| tree | 2b5de8525f229a02432c8edc6a2aad79ca7ce103 /scripts/gdb | |
| parent | 494dbe02b6df0bd98f7353c21e0b9849a25d2dce (diff) | |
scripts/gdb: add hlist utilities
This allows easily examining kernel hlists in python.
Link: http://lkml.kernel.org/r/Message-ID:
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Cc: Jason Wessel <jason.wessel@windriver.com>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Kieran Bingham <kbingham@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'scripts/gdb')
| -rw-r--r-- | scripts/gdb/linux/lists.py | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/scripts/gdb/linux/lists.py b/scripts/gdb/linux/lists.py index 1987d756b36b..55356b66f8ea 100644 --- a/scripts/gdb/linux/lists.py +++ b/scripts/gdb/linux/lists.py @@ -16,6 +16,8 @@ import gdb from linux import utils list_head = utils.CachedType("struct list_head") +hlist_head = utils.CachedType("struct hlist_head") +hlist_node = utils.CachedType("struct hlist_node") def list_for_each(head): @@ -39,6 +41,27 @@ def list_for_each_entry(head, gdbtype, member): yield utils.container_of(node, gdbtype, member) +def hlist_for_each(head): + if head.type == hlist_head.get_type().pointer(): + head = head.dereference() + elif head.type != hlist_head.get_type(): + raise gdb.GdbError("Must be struct hlist_head not {}" + .format(head.type)) + + node = head['first'].dereference() + while node.address: + yield node.address + node = node['next'].dereference() + + +def hlist_for_each_entry(head, gdbtype, member): + for node in hlist_for_each(head): + if node.type != hlist_node.get_type().pointer(): + raise TypeError("Type {} found. Expected struct hlist_head *." + .format(node.type)) + yield utils.container_of(node, gdbtype, member) + + def list_check(head): nb = 0 if (head.type == list_head.get_type().pointer()): |