linux-kernel - [PATCHv2 2/2] tasks: Add headers and improve spacing format

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Message-Id: <54c868c79b5fc364a8be7799891934a6fe6d1464.1597742951.git.riteshh@linux.ibm.com>
Date:   Tue, 18 Aug 2020 15:05:01 +0530
From:   Ritesh Harjani <riteshh@...ux.ibm.com>
To:     Jan Kiszka <jan.kiszka@...mens.com>,
        Kieran Bingham <kbingham@...nel.org>
Cc:     linux-kernel@...r.kernel.org,
        Ritesh Harjani <riteshh@...ux.ibm.com>
Subject: [PATCHv2 2/2] tasks: Add headers and improve spacing format

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 <riteshh@...ux.ibm.com>
---
 scripts/gdb/linux/tasks.py | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/scripts/gdb/linux/tasks.py b/scripts/gdb/linux/tasks.py
index 0301dc1e0138..17ec19e9b5bf 100644
--- a/scripts/gdb/linux/tasks.py
+++ b/scripts/gdb/linux/tasks.py
@@ -73,11 +73,12 @@ class LxPs(gdb.Command):
         super(LxPs, self).__init__("lx-ps", gdb.COMMAND_DATA)
 
     def invoke(self, arg, from_tty):
+        gdb.write("{:>10} {:>12} {:>7}\n".format("TASK", "PID", "COMM"))
         for task in task_lists():
-            gdb.write("{address} {pid} {comm}\n".format(
-                address=task,
-                pid=task["pid"],
-                comm=task["comm"].string()))
+            gdb.write("{} {:^5} {}\n".format(
+                task.format_string().split()[0],
+                task["pid"].format_string(),
+                task["comm"].string()))
 
 
 LxPs()
-- 
2.25.4