linux-kernel - Re: [PATCH 2/3] scripts/gdb: fix lx-timerlist for Python3

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Message-ID: <TYYP286MB17633E7DDA7739F53B1C4CF2C69F9@TYYP286MB1763.JPNP286.PROD.OUTLOOK.COM>
Date:   Thu, 4 Aug 2022 16:50:05 +0800
From:   Peng Liu <pngliu@...mail.com>
To:     jan.kiszka@...mens.com, kbingham@...nel.org
Cc:     linux-kernel@...r.kernel.org, Peng Liu <liupeng17@...ovo.com>
Subject: Re: [PATCH 2/3] scripts/gdb: fix lx-timerlist for Python3

ping

On 2022/7/20 20:27, pngliu@...mail.com wrote:
> From: Peng Liu <liupeng17@...ovo.com>
>
> Below incompatibilities between Python2 and Python3 made lx-timerlist
> fail to run under Python3.
>
> o xrange() is replaced by range() in Python3
> o bytes and str are different types in Python3
> o the return value of Inferior.read_memory() is memoryview object in
>    Python3
>
> Signed-off-by: Peng Liu <liupeng17@...ovo.com>
> ---
>   scripts/gdb/linux/timerlist.py | 4 +++-
>   scripts/gdb/linux/utils.py     | 5 ++++-
>   2 files changed, 7 insertions(+), 2 deletions(-)
>
> diff --git a/scripts/gdb/linux/timerlist.py b/scripts/gdb/linux/timerlist.py
> index 44e39dc3eb64..8281da068c5b 100644
> --- a/scripts/gdb/linux/timerlist.py
> +++ b/scripts/gdb/linux/timerlist.py
> @@ -72,7 +72,7 @@ def print_cpu(hrtimer_bases, cpu, max_clock_bases):
>       ts = cpus.per_cpu(tick_sched_ptr, cpu)
>   
>       text = "cpu: {}\n".format(cpu)
> -    for i in xrange(max_clock_bases):
> +    for i in range(max_clock_bases):
>           text += " clock {}:\n".format(i)
>           text += print_base(cpu_base['clock_base'][i])
>   
> @@ -157,6 +157,8 @@ def pr_cpumask(mask):
>       num_bytes = (nr_cpu_ids + 7) / 8
>       buf = utils.read_memoryview(inf, bits, num_bytes).tobytes()
>       buf = binascii.b2a_hex(buf)
> +    if type(buf) is not str:
> +        buf=buf.decode()
>   
>       chunks = []
>       i = num_bytes
> diff --git a/scripts/gdb/linux/utils.py b/scripts/gdb/linux/utils.py
> index ff7c1799d588..db59f986c7fd 100644
> --- a/scripts/gdb/linux/utils.py
> +++ b/scripts/gdb/linux/utils.py
> @@ -89,7 +89,10 @@ def get_target_endianness():
>   
>   
>   def read_memoryview(inf, start, length):
> -    return memoryview(inf.read_memory(start, length))
> +    m = inf.read_memory(start, length)
> +    if type(m) is memoryview:
> +        return m
> +    return memoryview(m)
>   
>   
>   def read_u16(buffer, offset):