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Groups > linux.kernel > #1349030
| From | Kieran Bingham <kieran.bingham@linaro.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCHv3 13/13] scripts/gdb: Add lx_thread_info_by_pid helper |
| Date | 2016-03-03 12:50 +0100 |
| Message-ID | <r8zVy-6xi-53@gated-at.bofh.it> (permalink) |
| References | <r8zVv-6xi-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
The tasks module already provides helpers to find the task struct by
pid, and the thread_info by task struct; however this is cumbersome to
utilise on the gdb commandline.
Wrap these two functionalities together in an extra single helper to
allow exploring the thread info, from a PID value
Signed-off-by: Kieran Bingham <kieran.bingham@linaro.org>
---
scripts/gdb/linux/tasks.py | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/scripts/gdb/linux/tasks.py b/scripts/gdb/linux/tasks.py
index 862a4ae24d49..1bf949c43b76 100644
--- a/scripts/gdb/linux/tasks.py
+++ b/scripts/gdb/linux/tasks.py
@@ -114,3 +114,22 @@ variable."""
LxThreadInfoFunc()
+
+
+class LxThreadInfoByPidFunc (gdb.Function):
+ """Calculate Linux thread_info from task variable found by pid
+
+$lx_thread_info_by_pid(PID): Given PID, return the corresponding thread_info
+variable."""
+
+ def __init__(self):
+ super(LxThreadInfoByPidFunc, self).__init__("lx_thread_info_by_pid")
+
+ def invoke(self, pid):
+ task = get_task_by_pid(pid)
+ if task:
+ return get_thread_info(task.dereference())
+ else:
+ raise gdb.GdbError("No task of PID " + str(pid))
+
+LxThreadInfoByPidFunc()
--
2.5.0
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[PATCHv3 00/13] scripts/gdb: Linux awareness debug commands Kieran Bingham <kieran.bingham@linaro.org> - 2016-03-03 12:50 +0100 [PATCHv3 11/13] scripts/gdb: Add a Radix Tree Parser Kieran Bingham <kieran.bingham@linaro.org> - 2016-03-03 12:50 +0100 [PATCHv3 02/13] scripts/gdb: Provide kernel list item generators Kieran Bingham <kieran.bingham@linaro.org> - 2016-03-03 12:50 +0100 [PATCHv3 05/13] scripts/gdb: Support !CONFIG_MODULES gracefully Kieran Bingham <kieran.bingham@linaro.org> - 2016-03-03 12:50 +0100 [PATCHv3 01/13] scripts/gdb: Provide linux constants Kieran Bingham <kieran.bingham@linaro.org> - 2016-03-03 12:50 +0100 [PATCHv3 04/13] scripts/gdb: Provide exception catching parser Kieran Bingham <kieran.bingham@linaro.org> - 2016-03-03 12:50 +0100 [PATCHv3 13/13] scripts/gdb: Add lx_thread_info_by_pid helper Kieran Bingham <kieran.bingham@linaro.org> - 2016-03-03 12:50 +0100 [PATCHv3 10/13] scripts/gdb: Add cpu iterators Kieran Bingham <kieran.bingham@linaro.org> - 2016-03-03 12:50 +0100 [PATCHv3 12/13] scripts/gdb: Add interrupts command Kieran Bingham <kieran.bingham@linaro.org> - 2016-03-03 12:50 +0100 [PATCHv3 06/13] scripts/gdb: Provide a dentry_name VFS path helper Kieran Bingham <kieran.bingham@linaro.org> - 2016-03-03 12:50 +0100 [PATCHv3 08/13] scripts/gdb: Add mount point list command Kieran Bingham <kieran.bingham@linaro.org> - 2016-03-03 12:50 +0100 [PATCHv3 03/13] scripts/gdb: Convert modules usage to lists functions Kieran Bingham <kieran.bingham@linaro.org> - 2016-03-03 12:50 +0100
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