From: Jeff King <peff@peff.net>
To: "Randall S. Becker" <rsbecker@nexbridge.com>
Cc: "'Ævar Arnfjörð Bjarmason'" <avarab@gmail.com>,
git@vger.kernel.org, "'Junio C Hamano'" <gitster@pobox.com>
Subject: Re: [PATCH 6/6] git-compat-util.h: add __attribute__((printf)) to git_*printf*
Date: Mon, 12 Jul 2021 17:45:00 -0400 [thread overview]
Message-ID: <YOy33I+T0LsLHYoS@coredump.intra.peff.net> (raw)
In-Reply-To: <012b01d7775c$2ddcca60$89965f20$@nexbridge.com>
On Mon, Jul 12, 2021 at 04:26:16PM -0400, Randall S. Becker wrote:
> >> In practice this is redundant to the compiler's default printf format
> >> checking, since we mostly (entirely?) develop and test on platforms
> >> where SNPRINTF_RETURNS_BOGUS is not set. I'm doing this mainly for
> >> consistency with other code, now we don't need to think about why this
> >> particular case is different.
> >>
> >> See c4582f93a26 (Add compat/snprintf.c for systems that return bogus,
> >> 2008-03-05) for the commit that added these functions.
> >
> >I'm slightly lukewarm on general on adding this to a compat function.
> >Those are meant to be a lowest-common-denominator fallback, and we usually avoid fancy features or our usual styles there in favor of
> >simplicity.
> >
> >I guess this probably isn't _hurting_ anything, but it makes me wonder how many systems have a broken snprintf _and_ support the
> >attribute.
>
> NonStop does not support __attribute__ on any compiler I know of. This
> appears to be a gcc extension, so compat.c would create a gcc
> dependency, which is also not on the platform. snprintf is in place.
We already turn __attribute__ into a noop on unsupported platforms early
in git-compat-util.h (around line 443). So this would be OK, since the
snprintf macro hackery is later in the file (around line 786).
-Peff
next prev parent reply other threads:[~2021-07-12 21:45 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-10 8:47 [PATCH 0/6] add missing __attribute__((format)) Ævar Arnfjörð Bjarmason
2021-07-10 8:47 ` [PATCH 1/6] *.c static functions: don't forward-declare __attribute__ Ævar Arnfjörð Bjarmason
2021-07-10 8:47 ` [PATCH 2/6] sequencer.c: move static function to avoid forward decl Ævar Arnfjörð Bjarmason
2021-07-10 8:47 ` [PATCH 3/6] *.c static functions: add missing __attribute__((format)) Ævar Arnfjörð Bjarmason
2021-07-10 8:47 ` [PATCH 4/6] *.h: add a few " Ævar Arnfjörð Bjarmason
2021-07-11 23:05 ` Ævar Arnfjörð Bjarmason
2021-07-12 20:09 ` Jeff King
2021-07-10 8:47 ` [PATCH 5/6] bugreport.c: tweak cmd_bugreport() to use __attribute__((printf)) Ævar Arnfjörð Bjarmason
2021-07-12 19:39 ` Junio C Hamano
2021-07-10 8:47 ` [PATCH 6/6] git-compat-util.h: add __attribute__((printf)) to git_*printf* Ævar Arnfjörð Bjarmason
2021-07-12 20:13 ` Jeff King
2021-07-12 20:26 ` Randall S. Becker
2021-07-12 21:45 ` Jeff King [this message]
2021-07-12 21:58 ` Randall S. Becker
2021-07-12 20:14 ` [PATCH 0/6] add missing __attribute__((format)) Jeff King
2021-07-13 8:05 ` [PATCH v2 " Ævar Arnfjörð Bjarmason
2021-07-13 8:05 ` [PATCH v2 1/6] *.c static functions: don't forward-declare __attribute__ Ævar Arnfjörð Bjarmason
2021-07-13 8:05 ` [PATCH v2 2/6] sequencer.c: move static function to avoid forward decl Ævar Arnfjörð Bjarmason
2021-07-13 8:05 ` [PATCH v2 3/6] *.c static functions: add missing __attribute__((format)) Ævar Arnfjörð Bjarmason
2021-07-13 8:05 ` [PATCH v2 4/6] *.h: add a few " Ævar Arnfjörð Bjarmason
2021-07-13 8:05 ` [PATCH v2 5/6] advice.h: add missing __attribute__((format)) & fix usage Ævar Arnfjörð Bjarmason
2021-07-13 8:05 ` [PATCH v2 6/6] strbuf.h: add a comment about "missing" strftime() checking Ævar Arnfjörð Bjarmason
2021-07-13 21:15 ` Jeff King
2021-07-13 21:17 ` [PATCH v2 0/6] add missing __attribute__((format)) Jeff King
2021-07-13 22:29 ` Junio C Hamano
2021-07-13 23:05 ` Ævar Arnfjörð Bjarmason
2021-07-14 0:15 ` [PATCH v3 0/5] " Ævar Arnfjörð Bjarmason
2021-07-14 0:15 ` [PATCH v3 1/5] *.c static functions: don't forward-declare __attribute__ Ævar Arnfjörð Bjarmason
2021-07-14 0:15 ` [PATCH v3 2/5] sequencer.c: move static function to avoid forward decl Ævar Arnfjörð Bjarmason
2021-07-14 0:15 ` [PATCH v3 3/5] *.c static functions: add missing __attribute__((format)) Ævar Arnfjörð Bjarmason
2021-07-14 0:15 ` [PATCH v3 4/5] *.h: add a few " Ævar Arnfjörð Bjarmason
2021-07-14 0:15 ` [PATCH v3 5/5] advice.h: add missing __attribute__((format)) & fix usage Ævar Arnfjörð Bjarmason
2021-07-14 16:07 ` [PATCH v3 0/5] add missing __attribute__((format)) Junio C Hamano
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