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Date:      Sat, 13 Jul 2024 08:57:20 -0600
From:      Warner Losh <imp@bsdimp.com>
To:        Konstantin Belousov <kostikbel@gmail.com>
Cc:        Warner Losh <imp@freebsd.org>, src-committers@freebsd.org,  dev-commits-src-all@freebsd.org, dev-commits-src-main@freebsd.org
Subject:   Re: git: fc3e5334ab89 - main - Fix "%hhi" conversion for kvprintf()
Message-ID:  <CANCZdfqdVLH7Xy0C7D3hSCjo%2Bem_WbU5vwb=BK9_SeB9wKtg_g@mail.gmail.com>
In-Reply-To: <Zn7S_J-H4Lg1GZcA@kib.kiev.ua>
References:  <202406281500.45SF0sOZ057462@gitrepo.freebsd.org> <Zn7S_J-H4Lg1GZcA@kib.kiev.ua>

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On Fri, Jun 28, 2024 at 9:13=E2=80=AFAM Konstantin Belousov <kostikbel@gmai=
l.com>
wrote:

> On Fri, Jun 28, 2024 at 03:00:54PM +0000, Warner Losh wrote:
> > The branch main has been updated by imp:
> >
> > URL:
> https://cgit.FreeBSD.org/src/commit/?id=3Dfc3e5334ab891eab22a4278384be6f9=
b74d6d91a
> >
> > commit fc3e5334ab891eab22a4278384be6f9b74d6d91a
> > Author:     Sebastian Huber <sebastian.huber@embedded-brains.de>
> > AuthorDate: 2024-06-13 11:01:31 +0000
> > Commit:     Warner Losh <imp@FreeBSD.org>
> > CommitDate: 2024-06-28 14:57:39 +0000
> >
> >     Fix "%hhi" conversion for kvprintf()
> >
> >     The signedness of "char" is implementation-dependent.
> >
> >     Reviewed by: imp,zlei,nightquick@proton.me
> >     Pull Request: https://github.com/freebsd/freebsd-src/pull/1290
> > ---
> >  sys/kern/subr_prf.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/sys/kern/subr_prf.c b/sys/kern/subr_prf.c
> > index e291a1fa00a6..4dc989e2d1f1 100644
> > --- a/sys/kern/subr_prf.c
> > +++ b/sys/kern/subr_prf.c
> > @@ -904,7 +904,7 @@ handle_sign:
> >                       else if (hflag)
> >                               num =3D (short)va_arg(ap, int);
> >                       else if (cflag)
> > -                             num =3D (char)va_arg(ap, int);
> > +                             num =3D (signed char)va_arg(ap, int);
> >                       else
> >                               num =3D va_arg(ap, int);
> >  number:
> Isn't the same fix needed for libexec/rtld-elf/rtld_printf.c ?
>

Oh I believe that it is. The code is different in appearance, but it's
clear that this is needed there too... I'm a little behind on things, but I
hadn't forgotten.

Warner

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<div dir=3D"ltr"><div dir=3D"ltr"><br></div><br><div class=3D"gmail_quote">=
<div dir=3D"ltr" class=3D"gmail_attr">On Fri, Jun 28, 2024 at 9:13=E2=80=AF=
AM Konstantin Belousov &lt;<a href=3D"mailto:kostikbel@gmail.com">kostikbel=
@gmail.com</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=
=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding=
-left:1ex">On Fri, Jun 28, 2024 at 03:00:54PM +0000, Warner Losh wrote:<br>
&gt; The branch main has been updated by imp:<br>
&gt; <br>
&gt; URL: <a href=3D"https://cgit.FreeBSD.org/src/commit/?id=3Dfc3e5334ab89=
1eab22a4278384be6f9b74d6d91a" rel=3D"noreferrer" target=3D"_blank">https://=
cgit.FreeBSD.org/src/commit/?id=3Dfc3e5334ab891eab22a4278384be6f9b74d6d91a<=
/a><br>
&gt; <br>
&gt; commit fc3e5334ab891eab22a4278384be6f9b74d6d91a<br>
&gt; Author:=C2=A0 =C2=A0 =C2=A0Sebastian Huber &lt;<a href=3D"mailto:sebas=
tian.huber@embedded-brains.de" target=3D"_blank">sebastian.huber@embedded-b=
rains.de</a>&gt;<br>
&gt; AuthorDate: 2024-06-13 11:01:31 +0000<br>
&gt; Commit:=C2=A0 =C2=A0 =C2=A0Warner Losh &lt;imp@FreeBSD.org&gt;<br>
&gt; CommitDate: 2024-06-28 14:57:39 +0000<br>
&gt; <br>
&gt;=C2=A0 =C2=A0 =C2=A0Fix &quot;%hhi&quot; conversion for kvprintf()<br>
&gt;=C2=A0 =C2=A0 =C2=A0<br>
&gt;=C2=A0 =C2=A0 =C2=A0The signedness of &quot;char&quot; is implementatio=
n-dependent.<br>
&gt;=C2=A0 =C2=A0 =C2=A0<br>
&gt;=C2=A0 =C2=A0 =C2=A0Reviewed by: imp,zlei,<a href=3D"mailto:nightquick@=
proton.me" target=3D"_blank">nightquick@proton.me</a><br>
&gt;=C2=A0 =C2=A0 =C2=A0Pull Request: <a href=3D"https://github.com/freebsd=
/freebsd-src/pull/1290" rel=3D"noreferrer" target=3D"_blank">https://github=
.com/freebsd/freebsd-src/pull/1290</a><br>
&gt; ---<br>
&gt;=C2=A0 sys/kern/subr_prf.c | 2 +-<br>
&gt;=C2=A0 1 file changed, 1 insertion(+), 1 deletion(-)<br>
&gt; <br>
&gt; diff --git a/sys/kern/subr_prf.c b/sys/kern/subr_prf.c<br>
&gt; index e291a1fa00a6..4dc989e2d1f1 100644<br>
&gt; --- a/sys/kern/subr_prf.c<br>
&gt; +++ b/sys/kern/subr_prf.c<br>
&gt; @@ -904,7 +904,7 @@ handle_sign:<br>
&gt;=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0else if (hflag)<br>
&gt;=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0num =3D (short)va_arg(ap, int);<br=
>
&gt;=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0else if (cflag)<br>
&gt; -=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0num =3D (char)va_arg(ap, int);<br>
&gt; +=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0num =3D (signed char)va_arg(ap, int);<br=
>
&gt;=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0else<br>
&gt;=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0num =3D va_arg(ap, int);<br>
&gt;=C2=A0 number:<br>
Isn&#39;t the same fix needed for libexec/rtld-elf/rtld_printf.c ?<br></blo=
ckquote><div><br></div><div>Oh I believe that it is. The code is different =
in appearance, but it&#39;s clear that this is needed there too... I&#39;m =
a little behind on things, but I hadn&#39;t forgotten.<br></div><div><br></=
div><div>Warner<br></div></div></div>

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