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| author | Xi Kangjie <imxikangjie@gmail.com> | 2018-01-18 16:34:00 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-01-19 10:09:41 -0800 |
| commit | 883d50f56d263f70fd73c0d96b09eb36c34e9305 (patch) | |
| tree | 02e9e827233616e37837735b7a61b62c77d97f55 /scripts | |
| parent | be9fa663d325a102de53c9ab6d00a31dcb36bb73 (diff) | |
| download | linux-883d50f56d263f70fd73c0d96b09eb36c34e9305.tar.gz linux-883d50f56d263f70fd73c0d96b09eb36c34e9305.tar.bz2 linux-883d50f56d263f70fd73c0d96b09eb36c34e9305.zip | |
scripts/gdb/linux/tasks.py: fix get_thread_info
Since kernel 4.9, the thread_info has been moved into task_struct, no
longer locates at the bottom of kernel stack.
See commits c65eacbe290b ("sched/core: Allow putting thread_info into
task_struct") and 15f4eae70d36 ("x86: Move thread_info into
task_struct").
Before fix:
(gdb) set $current = $lx_current()
(gdb) p $lx_thread_info($current)
$1 = {flags = 1470918301}
(gdb) p $current.thread_info
$2 = {flags = 2147483648}
After fix:
(gdb) p $lx_thread_info($current)
$1 = {flags = 2147483648}
(gdb) p $current.thread_info
$2 = {flags = 2147483648}
Link: http://lkml.kernel.org/r/20180118210159.17223-1-imxikangjie@gmail.com
Fixes: 15f4eae70d36 ("x86: Move thread_info into task_struct")
Signed-off-by: Xi Kangjie <imxikangjie@gmail.com>
Acked-by: Jan Kiszka <jan.kiszka@siemens.com>
Acked-by: Kieran Bingham <kbingham@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'scripts')
| -rw-r--r-- | scripts/gdb/linux/tasks.py | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/scripts/gdb/linux/tasks.py b/scripts/gdb/linux/tasks.py index 1bf949c43b76..f6ab3ccf698f 100644 --- a/scripts/gdb/linux/tasks.py +++ b/scripts/gdb/linux/tasks.py @@ -96,6 +96,8 @@ def get_thread_info(task): thread_info_addr = task.address + ia64_task_size thread_info = thread_info_addr.cast(thread_info_ptr_type) else: + if task.type.fields()[0].type == thread_info_type.get_type(): + return task['thread_info'] thread_info = task['stack'].cast(thread_info_ptr_type) return thread_info.dereference() |