linux-kernel - Re: [PATCH 3/9] efi/x86: Move efi stub globals from .bss to .data

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Message-ID: <20200409210847.GA1312580@rani.riverdale.lan>
Date:   Thu, 9 Apr 2020 17:08:47 -0400
From:   Arvind Sankar <nivedita@...m.mit.edu>
To:     Brian Gerst <brgerst@...il.com>
Cc:     Ard Biesheuvel <ardb@...nel.org>, linux-efi@...r.kernel.org,
        Ingo Molnar <mingo@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Arnd Bergmann <arnd@...db.de>,
        Arvind Sankar <nivedita@...m.mit.edu>,
        Borislav Petkov <bp@...e.de>,
        Colin Ian King <colin.king@...onical.com>,
        Gary Lin <glin@...e.com>, Jiri Slaby <jslaby@...e.cz>,
        Sergey Shatunov <me@...k.pw>, Takashi Iwai <tiwai@...e.de>
Subject: Re: [PATCH 3/9] efi/x86: Move efi stub globals from .bss to .data

On Thu, Apr 09, 2020 at 04:53:07PM -0400, Brian Gerst wrote:
> > Can we use the -fno-zero-initialized-in-bss compiler flag instead of
> > explicitly marking global variables?
> 
> Scratch that.  Apparently it only works when a variable is explicitly
> initialized to zero.
> 
> --
> Brian Gerst

Right, there doesn't seem to be a compiler option to turn off the use of
.bss altogether.