From: Segher Boessenkool <segher@kernel.crashing.org>
To: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Jason Wang <wangborong@cdjrlc.com>,
benh@kernel.crashing.org, yukuai3@huawei.com,
linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] macintosh: no need to initilise statics to 0
Date: Tue, 17 Aug 2021 12:44:20 -0500 [thread overview]
Message-ID: <20210817174420.GG1583@gate.crashing.org> (raw)
In-Reply-To: <2105ef52-b736-cc18-def9-02ac174d1922@csgroup.eu>
On Tue, Aug 17, 2021 at 01:59:33PM +0200, Christophe Leroy wrote:
>
>
> Le 17/08/2021 à 13:51, Jason Wang a écrit :
> >Global static variables dont need to be initialised to 0. Because
> >the compiler will initilise them.
>
> It is not the compiler, it is the Kernel. It is done here:
>
> https://elixir.bootlin.com/linux/v5.14-rc6/source/arch/powerpc/kernel/early_32.c
This implements part of the C language: everything with static storage
duration (which includes all global objects, not just those marked
"static") is initialized.
> Among those 44 changes, only 2 are related to the commit's description.
Yeah. Don't do that please :-/
Segher
next prev parent reply other threads:[~2021-08-17 17:47 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-17 11:51 [PATCH] macintosh: no need to initilise statics to 0 Jason Wang
2021-08-17 11:59 ` Christophe Leroy
2021-08-17 17:44 ` Segher Boessenkool [this message]
2021-08-17 18:05 ` Joe Perches
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210817174420.GG1583@gate.crashing.org \
--to=segher@kernel.crashing.org \
--cc=benh@kernel.crashing.org \
--cc=christophe.leroy@csgroup.eu \
--cc=linux-kernel@vger.kernel.org \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=wangborong@cdjrlc.com \
--cc=yukuai3@huawei.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).