From: Matt Fleming <matt@console-pimps.org>
To: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>,
Maarten Lankhorst <maarten.lankhorst@canonical.com>,
Ulf Winkelvos <ulf@winkelvos.de>,
Matt Fleming <matt.fleming@intel.com>,
LKML <linux-kernel@vger.kernel.org>,
"x86@kernel.org" <x86@kernel.org>,
"linux-efi@vger.kernel.org" <linux-efi@vger.kernel.org>,
Seth Forshee <seth.forshee@canonical.com>,
Matthew Garrett <mjg59@srcf.ucam.org>
Subject: Re: [REGRESSION] "efi: efistub: Convert into static library" and preparation patches
Date: Thu, 4 Sep 2014 08:40:08 +0100 [thread overview]
Message-ID: <20140904074008.GJ3001@console-pimps.org> (raw)
In-Reply-To: <CAKv+Gu8VkW+unei3vGZxor6ZGuLwsmKktcBJfy3+bKrkrKgPyw@mail.gmail.com>
On Thu, 04 Sep, at 08:47:57AM, Ard Biesheuvel wrote:
>
> So how about we:
> - add ASSERT(_got == _egot, "GOT entries not supported in
> boot/compressed") to the linker script
> - #define __nogotentry __attribute__((visibility(hidden))) somewhere
> in compiler.h or wherever else it belongs
> - add the __nogotentry qualifiers to each extern that requires it,
> which is currently:
> early_serial_base
> efi_early
> free_mem_end_ptr
> free_mem_ptr
> real_mode
> - get rid of the fixup code in assembly
Seems fine to me since it was Peter who introduced the GOT fixup asm
code in the first place.
> Any idea what the oldest GCC is we should support?
I'm pretty sure we still support GCC 3.x.x. The symbol visibility
support was added in GCC 4.x right?
--
Matt Fleming, Intel Open Source Technology Center
next prev parent reply other threads:[~2014-09-04 7:40 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-02 15:25 [REGRESSION] "efi: efistub: Convert into static library" and preparation patches Maarten Lankhorst
2014-09-02 19:29 ` Matt Fleming
2014-09-03 6:06 ` Ard Biesheuvel
2014-09-03 8:27 ` Maarten Lankhorst
2014-09-03 12:18 ` Ard Biesheuvel
2014-09-03 15:30 ` Maarten Lankhorst
2014-09-03 15:37 ` Ard Biesheuvel
2014-09-03 17:59 ` Matt Fleming
2014-09-03 19:57 ` Ard Biesheuvel
2014-09-03 21:28 ` H. Peter Anvin
2014-09-04 10:48 ` Maarten Lankhorst
2014-09-04 11:19 ` Ard Biesheuvel
2014-09-04 11:24 ` Maarten Lankhorst
2014-09-04 12:54 ` Michael Brown
2014-09-04 19:12 ` Ard Biesheuvel
2014-09-04 21:25 ` Ard Biesheuvel
2014-09-04 21:37 ` Matt Fleming
2014-09-05 20:27 ` Matt Fleming
2014-09-08 12:55 ` Ard Biesheuvel
2014-09-08 13:01 ` Maarten Lankhorst
2014-09-08 13:16 ` Matt Fleming
2014-09-22 18:44 ` Josh Boyer
2014-09-22 21:07 ` Matt Fleming
2014-09-22 21:24 ` Josh Boyer
2014-09-03 21:47 ` H. Peter Anvin
2014-09-04 6:47 ` Ard Biesheuvel
2014-09-04 7:40 ` Matt Fleming [this message]
2014-09-04 7:50 ` Maarten Lankhorst
2014-09-04 7:29 ` Matt Fleming
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=20140904074008.GJ3001@console-pimps.org \
--to=matt@console-pimps.org \
--cc=ard.biesheuvel@linaro.org \
--cc=hpa@zytor.com \
--cc=linux-efi@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=maarten.lankhorst@canonical.com \
--cc=matt.fleming@intel.com \
--cc=mjg59@srcf.ucam.org \
--cc=seth.forshee@canonical.com \
--cc=ulf@winkelvos.de \
--cc=x86@kernel.org \
/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