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Date:      Fri, 03 Feb 2017 11:20:17 -0700
From:      Ian Lepore <ian@freebsd.org>
To:        Toomas Soome <tsoome@me.com>
Cc:        Toomas Soome <tsoome@FreeBSD.org>, src-committers <src-committers@freebsd.org>, svn-src-all@freebsd.org, svn-src-head@freebsd.org
Subject:   Re: svn commit: r313166 - head/sys/boot/efi/libefi
Message-ID:  <1486146017.3017.193.camel@freebsd.org>
In-Reply-To: <19994E26-42EE-4E12-9867-1E53FA2A7F81@me.com>
References:  <201702031639.v13GdAXQ074031@repo.freebsd.org> <1486140447.3017.189.camel@freebsd.org> <19994E26-42EE-4E12-9867-1E53FA2A7F81@me.com>

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On Fri, 2017-02-03 at 18:52 +0200, Toomas Soome wrote:
> > 
> > On 3. veebr 2017, at 18:47, Ian Lepore <ian@freebsd.org> wrote:
> > 
> > On Fri, 2017-02-03 at 16:39 +0000, Toomas Soome wrote:
> > > 
> > > Author: tsoome
> > > Date: Fri Feb  3 16:39:10 2017
> > > New Revision: 313166
> > > URL: https://svnweb.freebsd.org/changeset/base/313166
> > > 
> > > Log:
> > >   loader: libefi/env.c warnings in arm build
> > >   
> > >   The arm build has revealed some of the warnings, the fix for
> > > CHAR16
> > >   warning is to switch the warning off for env.c (same as for
> > > efinet.c).
> > >   
> > How is disabling the warning instead of just fixing it the right
> > thing
> > to do?  I think disabling a printf format warning is never the
> > right
> > thing to do, it just turns a compile warning into a runtime
> > failure.
> 
> I would love to see the correct fix - as all UEFI chars are 2 byte;
> but thats up to arm experts. I just do not know the details why the
> arm is stuck with 4 byte wchar_t there - Im sure they do not have
> this just for fun:)
> 
> rgds,
> toomas

Hmm, looks like the right fix is to add -fshort-wchar to CFLAGS, but
it's got to be consistant across all the libraries that get linked, and
some of them are used in the non-efi case too.  I'll have a closer look
 at whether we can fix it properly over the next few days.

-- Ian




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