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Thu, 10 Dec 2020 13:49:43 +0000 (UTC) X-Outflank-Mailman: Message body and most headers restored to incoming version X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 2a25ce89-4d1c-4c55-9d20-3c7fcb2b3913 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1607608199; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=uC8B/2alqBgSU7hoZ9+H0Qhhp1eKRr97cLOh0lFkCEo=; b=IOWaDCl4oVIs654F2uXzz8cwZ5dpzZcUsd1soPsoC88yNtkm9VRZvwQgyL/ffc2r/xJWgN x1KM2s1lELeVbEfLvH4jg4UUeAnKTLX12lPuwBgGmgrW4DMYik7+XbZ2n1SQp9uGMC2apL vkd1DZPZ/iCUsRc3l8SuQlk3txdpeDM= X-MC-Unique: d9qAt3hLPxmeeP3x39eJCw-1 From: marcandre.lureau@redhat.com To: qemu-devel@nongnu.org Cc: philmd@redhat.com, Richard Henderson , Laurent Vivier , Paul Durrant , xen-devel@lists.xenproject.org, Stefan Hajnoczi , Gerd Hoffmann , Stefano Stabellini , Anthony Perard , "Dr. David Alan Gilbert" , qemu-arm@nongnu.org, Paolo Bonzini , Peter Maydell , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Subject: [PATCH v3 07/13] compiler.h: explicit case for Clang printf attribute Date: Thu, 10 Dec 2020 17:47:46 +0400 Message-Id: <20201210134752.780923-8-marcandre.lureau@redhat.com> In-Reply-To: <20201210134752.780923-1-marcandre.lureau@redhat.com> References: <20201210134752.780923-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=marcandre.lureau@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @redhat.com) From: Marc-Andr=C3=A9 Lureau Since commit efc6c07 ("configure: Add a test for the minimum compiler version"), QEMU explicitely depends on GCC >=3D 4.8, we could thus drop earlier version checks. Except clang advertizes itself as GCC 4.2.1. Since clang doesn't support gnu_printf, make that case explicitely and drop GCC version check. Signed-off-by: Marc-Andr=C3=A9 Lureau Reviewed-by: Peter Maydell --- include/qemu/compiler.h | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) diff --git a/include/qemu/compiler.h b/include/qemu/compiler.h index 226ead6c90..6212295e52 100644 --- a/include/qemu/compiler.h +++ b/include/qemu/compiler.h @@ -99,18 +99,18 @@ #define QEMU_BUILD_BUG_ON_ZERO(x) (sizeof(QEMU_BUILD_BUG_ON_STRUCT(x)) - \ sizeof(QEMU_BUILD_BUG_ON_STRUCT(x))) =20 -#if defined __GNUC__ -# if !QEMU_GNUC_PREREQ(4, 4) - /* gcc versions before 4.4.x don't support gnu_printf, so use printf. */ -# define GCC_FMT_ATTR(n, m) __attribute__((format(printf, n, m))) -# else - /* Use gnu_printf when supported (qemu uses standard format strings). */ -# define GCC_FMT_ATTR(n, m) __attribute__((format(gnu_printf, n, m))) -# if defined(_WIN32) - /* Map __printf__ to __gnu_printf__ because we want standard format st= rings - * even when MinGW or GLib include files use __printf__. */ -# define __printf__ __gnu_printf__ -# endif +#if defined(__clang__) +/* clang doesn't support gnu_printf, so use printf. */ +# define GCC_FMT_ATTR(n, m) __attribute__((format(printf, n, m))) +#elif defined(__GNUC__) +/* Use gnu_printf (qemu uses standard format strings). */ +# define GCC_FMT_ATTR(n, m) __attribute__((format(gnu_printf, n, m))) +# if defined(_WIN32) +/* + * Map __printf__ to __gnu_printf__ because we want standard format string= s even + * when MinGW or GLib include files use __printf__. + */ +# define __printf__ __gnu_printf__ # endif #else #define GCC_FMT_ATTR(n, m) --=20 2.29.0