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2020-10-16scripts/gdb/tasks: add headers and improve spacing formatRitesh Harjani1-4/+5
With the patch. <e.g. o/p> TASK PID COMM 0xffffffff82c2b8c0 0 swapper/0 0xffff888a0ba20040 1 systemd 0xffff888a0ba24040 2 kthreadd 0xffff888a0ba28040 3 rcu_gp w/o 0xffffffff82c2b8c0 <init_task> 0 swapper/0 0xffff888a0ba20040 1 systemd 0xffff888a0ba24040 2 kthreadd 0xffff888a0ba28040 3 rcu_gp Signed-off-by: Ritesh Harjani <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Jan Kiszka <[email protected]> Cc: Kieran Bingham <[email protected]> Link: http://lkml.kernel.org/r/54c868c79b5fc364a8be7799891934a6fe6d1464.1597742951.git.riteshh@linux.ibm.com Signed-off-by: Linus Torvalds <[email protected]>
2019-05-14scripts/gdb: silence pep8 checksStephen Boyd1-0/+2
These scripts have some pep8 style warnings. Fix them up so that this directory is all pep8 clean. Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Stephen Boyd <[email protected]> Cc: Douglas Anderson <[email protected]> Cc: Nikolay Borisov <[email protected]> Cc: Kieran Bingham <[email protected]> Cc: Jan Kiszka <[email protected]> Cc: Jackie Liu <[email protected]> Cc: Jason Wessel <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2018-01-19scripts/gdb/linux/tasks.py: fix get_thread_infoXi Kangjie1-0/+2
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/[email protected] Fixes: 15f4eae70d36 ("x86: Move thread_info into task_struct") Signed-off-by: Xi Kangjie <[email protected]> Acked-by: Jan Kiszka <[email protected]> Acked-by: Kieran Bingham <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2016-05-23scripts/gdb: add lx_thread_info_by_pid helperKieran Bingham1-0/+19
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 Link: http://lkml.kernel.org/r/dadc5667f053ec811eb3e3033d99d937fedbc93b.1462865983.git.jan.kiszka@siemens.com Signed-off-by: Kieran Bingham <[email protected]> Signed-off-by: Jan Kiszka <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2015-06-30scripts/gdb: remove useless global instructionThiébaud Weksteen1-2/+0
Signed-off-by: Thiébaud Weksteen <[email protected]> Signed-off-by: Jan Kiszka <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2015-06-30scripts/gdb: add ps commandThiébaud Weksteen1-0/+16
Signed-off-by: Thiébaud Weksteen <[email protected]> Signed-off-by: Jan Kiszka <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2015-06-30scripts/gdb: fix PEP8 complianceThiébaud Weksteen1-0/+2
Signed-off-by: Thiébaud Weksteen <[email protected]> Signed-off-by: Jan Kiszka <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2015-02-17scripts/gdb: use a generator instead of iterator for task listDaniel Wagner1-30/+20
The iterator does not return any task_struct from the thread_group list because the first condition in the 'if not t or ...' will only be the first time None. Instead of keeping track of the state ourself in the next() function, we fall back using Python's generator. Signed-off-by: Daniel Wagner <[email protected]> Signed-off-by: Jan Kiszka <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Jason Wessel <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Ben Widawsky <[email protected]> Cc: Borislav Petkov <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2015-02-17scripts/gdb: port to python3 / gdb7.7Pantelis Koukousoulas1-1/+3
I tried to use these scripts in an ubuntu 14.04 host (gdb 7.7 compiled against python 3.3) but there were several errors. I believe this patch fixes these issues so that the commands now work (I tested lx-symbols, lx-dmesg, lx-lsmod). Main issues that needed to be resolved: * In python 2 iterators have a "next()" method. In python 3 it is __next__() instead (so let's just add both). * In older python versions there was an implicit conversion in object.__format__() (used when an object is in string.format()) where it was converting the object to str first and then calling str's __format__(). This has now been removed so we must explicitly convert to str the objects for which we need to keep this behavior. * In dmesg.py: in python 3 log_buf is now a "memoryview" object which needs to be converted to a string in order to use string methods like "splitlines()". Luckily memoryview exists in python 2.7.6 as well, so we can convert log_buf to memoryview and use the same code in both python 2 and python 3. This version of the patch has now been tested with gdb 7.7 and both python 3.4 and python 2.7.6 (I think asking for at least python 2.7.6 is a reasonable requirement instead of complicating the code with version checks etc). Signed-off-by: Pantelis Koukousoulas <[email protected]> Signed-off-by: Jan Kiszka <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Jason Wessel <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Ben Widawsky <[email protected]> Cc: Borislav Petkov <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2015-02-17scripts/gdb: add internal helper and convenience function to retrieve ↵Jan Kiszka1-0/+35
thread_info Add the internal helper get_thread_info that calculates the thread_info from a given task variable. Also export this service as a convenience function. Note: ia64 version is untested. Signed-off-by: Jan Kiszka <[email protected]> Cc: Tony Luck <[email protected]> Cc: Fenghua Yu <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Jason Wessel <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Ben Widawsky <[email protected]> Cc: Borislav Petkov <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2015-02-17scripts/gdb: add helper and convenience function to look up tasksJan Kiszka1-0/+27
Add the helper task_by_pid that can look up a task by its PID. Also export it as a convenience function. Signed-off-by: Jan Kiszka <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Jason Wessel <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Ben Widawsky <[email protected]> Cc: Borislav Petkov <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2015-02-17scripts/gdb: add task iteration classJan Kiszka1-0/+46
This class allows to iterate over all tasks of the target. Signed-off-by: Jan Kiszka <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Jason Wessel <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Ben Widawsky <[email protected]> Cc: Borislav Petkov <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
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