From: Yao Zi via Grub-devel <grub-devel@gnu.org>
To: The development of GNU GRUB <grub-devel@gnu.org>
Cc: Yao Zi <me@ziyao.cc>
Subject: Re: [question] CLion's autocorrect draws the GNU logo, is this a coincidence?
Date: Thu, 12 Mar 2026 09:21:06 +0000 [thread overview]
Message-ID: <abKFgjdG4WeAV2vM@pie> (raw)
In-Reply-To: <CAKtYDeMCPubPZ9NbfChj5BooNq0xA=Q4xSxAerhEVN5uEZ_sfg@mail.gmail.com>
On Wed, Mar 11, 2026 at 11:37:36PM +0300, Bardia Roshan Pajouh wrote:
> I was opening random grub files out of curiosity in CLion and came across a
> file named grub.chrp.in . The file is full of hex and
It isn't fully hex, it's in SGML format, and you could see tags like
<CHRP-BOOT> and <COMPATIBLE>. This is the bootinfo file defined by
PowerPC Microprocessor Common Hardware Reference Platform (CHRP) System
Binding to IEEE Std 1275‑1994[1], providing boot options information for
the firmware.
> CLions autocorrect
> highlights green under the hex in a way that it looks like the GNU logo. I
> was wondering if this was a coincidence or an easter egg. Sorry for wasting
> your time with this silly question.
The hex is enclosed by OS-BADGE-ICONS tag. Though isn't defined in the
CHRP specification, this seems to be an Apple extension (since it's used
by Apple's BootX, too[2]) for specifying icons for boot options. So I
don't think this is a coincidence.
Regards,
Yao Zi
[1]: https://stuff.mit.edu/afs/sipb/contrib/doc/specs/protocol/chrp/chrp1_7a.pd[2]: https://github.com/apple-oss-distributions/BootX/blob/814114e6a6cf10dfa512c520f5a1c1fb9c58a432/bootx.tproj/bootinfo.hdr#L8
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