linux-kernel - Re: [PATCH v2] scripts/gdb: use mem instead of core

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Message-ID: <ZDdSd8iB2n6r/ccB@bombadil.infradead.org>
Date:   Wed, 12 Apr 2023 17:53:11 -0700
From:   Luis Chamberlain <mcgrof@...nel.org>
To:     Pankaj Raghav <p.raghav@...sung.com>
Cc:     jan.kiszka@...mens.com, kbingham@...nel.org, gost.dev@...sung.com,
        linux-kernel@...r.kernel.org, song@...nel.org
Subject: Re: [PATCH v2] scripts/gdb: use mem instead of core_layout to get
 the module address

On Wed, Apr 12, 2023 at 10:25:18PM +0200, Pankaj Raghav wrote:
> commit ac3b43283923 ("module: replace module_layout with module_memory")
> changed the struct module data structure from module_layout to
> module_memory. The core_layout member which is used while loading
> modules are not available anymore leading to the following error while
> running gdb:
> 
> (gdb) lx-symbols
> loading vmlinux
> Python Exception <class 'gdb.error'>: There is no member named core_layout.
> Error occurred in Python: There is no member named core_layout.
> 
> Replace core_layout with its new counterpart mem[MOD_TEXT].
> 
> Fixes: ac3b43283923 ("module: replace module_layout with module_memory")
> Signed-off-by: Pankaj Raghav <p.raghav@...sung.com>
> ---
>  scripts/gdb/linux/constants.py.in | 3 +++
>  scripts/gdb/linux/modules.py      | 4 ++--
>  scripts/gdb/linux/symbols.py      | 4 ++--
>  3 files changed, 7 insertions(+), 4 deletions(-)
> 
> diff --git a/scripts/gdb/linux/constants.py.in b/scripts/gdb/linux/constants.py.in
> index 36fd2b145853..471300ba176c 100644
> --- a/scripts/gdb/linux/constants.py.in
> +++ b/scripts/gdb/linux/constants.py.in
> @@ -62,6 +62,9 @@ LX_GDBPARSED(hrtimer_resolution)
>  LX_GDBPARSED(IRQD_LEVEL)
>  LX_GDBPARSED(IRQ_HIDDEN)
>  
> +/* linux/module.h */
> +LX_GDBPARSED(MOD_TEXT)

Should we just fill in the rest of the other sections too while at it?

  Luis