From: Kieran Bingham <kieran.bingham@linaro.org>
To: jan.kiszka@siemens.com, linux-kernel@vger.kernel.org
Cc: lee.jones@linaro.org, peter.griffin@linaro.org,
maxime.coquelin@st.com,
Kieran Bingham <kieran.bingham@linaro.org>,
Jeff Mahoney <jeffm@suse.com>
Subject: [PATCHv3 02/13] scripts/gdb: Provide kernel list item generators
Date: Thu, 3 Mar 2016 11:40:56 +0000 [thread overview]
Message-ID: <1457005267-843-3-git-send-email-kieran.bingham@linaro.org> (raw)
In-Reply-To: <1457005267-843-1-git-send-email-kieran.bingham@linaro.org>
Facilitate linked-list items by providing a generator to return
the dereferenced, and type-cast objects from a kernel linked list
CC: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Kieran Bingham <kieran.bingham@linaro.org>
---
Changes since v1:
* items function removed, and replaced with Jeff Mahoney's cleaner
implementations of list_for_each, and list_for_each_entry
---
scripts/gdb/linux/lists.py | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/scripts/gdb/linux/lists.py b/scripts/gdb/linux/lists.py
index 3a3775bc162b..9f4503738e26 100644
--- a/scripts/gdb/linux/lists.py
+++ b/scripts/gdb/linux/lists.py
@@ -18,6 +18,26 @@ from linux import utils
list_head = utils.CachedType("struct list_head")
+def list_for_each(head):
+ if head.type == list_head.get_type().pointer():
+ head = head.dereference()
+ elif head.type != list_head.get_type():
+ raise gdb.GdbError("Must be struct list_head not %s" % list_head.type)
+
+ node = head['next'].dereference()
+ while node.address != head.address:
+ yield node.address
+ node = node['next'].dereference()
+
+
+def list_for_each_entry(head, gdbtype, member):
+ for node in list_for_each(head):
+ if node.type != list_head.get_type().pointer():
+ raise TypeError("Type %s found. "
+ "Expected struct list_head *." % node.type)
+ yield utils.container_of(node, gdbtype, member)
+
+
def list_check(head):
nb = 0
if (head.type == list_head.get_type().pointer()):
--
2.5.0
next prev parent reply other threads:[~2016-03-03 11:47 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-03 11:40 [PATCHv3 00/13] scripts/gdb: Linux awareness debug commands Kieran Bingham
2016-03-03 11:40 ` [PATCHv3 01/13] scripts/gdb: Provide linux constants Kieran Bingham
2016-03-03 11:40 ` Kieran Bingham [this message]
2016-03-08 3:47 ` [PATCHv3 02/13] scripts/gdb: Provide kernel list item generators Jeff Mahoney
2016-03-08 7:55 ` Kieran Bingham
2016-03-03 11:40 ` [PATCHv3 03/13] scripts/gdb: Convert modules usage to lists functions Kieran Bingham
2016-03-03 11:40 ` [PATCHv3 04/13] scripts/gdb: Provide exception catching parser Kieran Bingham
2016-03-03 11:40 ` [PATCHv3 05/13] scripts/gdb: Support !CONFIG_MODULES gracefully Kieran Bingham
2016-03-03 11:41 ` [PATCHv3 06/13] scripts/gdb: Provide a dentry_name VFS path helper Kieran Bingham
2016-03-03 11:41 ` [PATCHv3 07/13] scripts/gdb: Add io resource readers Kieran Bingham
2016-03-03 11:41 ` [PATCHv3 08/13] scripts/gdb: Add mount point list command Kieran Bingham
2016-03-13 16:34 ` Jan Kiszka
2016-03-14 14:39 ` Kieran Bingham
2016-03-14 15:05 ` Jan Kiszka
2016-03-15 10:46 ` Kieran Bingham
2016-03-03 11:41 ` [PATCHv3 09/13] scripts/gdb: Add meminfo command Kieran Bingham
2016-03-13 16:34 ` Jan Kiszka
2016-03-13 18:16 ` Kieran Bingham
2016-03-13 19:08 ` Jan Kiszka
2016-03-14 12:13 ` Kieran Bingham
2016-03-03 11:41 ` [PATCHv3 10/13] scripts/gdb: Add cpu iterators Kieran Bingham
2016-03-13 16:33 ` Jan Kiszka
2016-03-13 18:39 ` Kieran Bingham
2016-03-03 11:41 ` [PATCHv3 11/13] scripts/gdb: Add a Radix Tree Parser Kieran Bingham
2016-03-03 11:41 ` [PATCHv3 12/13] scripts/gdb: Add interrupts command Kieran Bingham
2016-03-03 11:41 ` [PATCHv3 13/13] scripts/gdb: Add lx_thread_info_by_pid helper Kieran Bingham
2016-03-13 16:35 ` [PATCHv3 00/13] scripts/gdb: Linux awareness debug commands Jan Kiszka
2016-03-14 14:40 ` Kieran Bingham
2016-03-14 15:09 ` Jan Kiszka
2016-03-14 17:18 ` Kieran Bingham
2016-03-14 17:31 ` Jan Kiszka
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