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[79.124.17.100]) by mx.google.com with ESMTP id 4fb4d7f45d1cf-5c42bb50a65si888614a12.28.2024.09.14.05.14.09; Sat, 14 Sep 2024 05:14:10 -0700 (PDT) Received-SPF: pass (google.com: domain of ffmpeg-devel-bounces@ffmpeg.org designates 79.124.17.100 as permitted sender) client-ip=79.124.17.100; Authentication-Results: mx.google.com; dkim=neutral (body hash did not verify) header.i=@comstyle.com header.s=default header.b=pF4IasXu; spf=pass (google.com: domain of ffmpeg-devel-bounces@ffmpeg.org designates 79.124.17.100 as permitted sender) smtp.mailfrom=ffmpeg-devel-bounces@ffmpeg.org Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 2B18568DB0B; Sat, 14 Sep 2024 06:57:08 +0300 (EEST) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from mail.comstyle.com (speedy.comstyle.com [206.51.28.2]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 5857668D9D1 for ; Sat, 14 Sep 2024 06:57:01 +0300 (EEST) Received: from mail.comstyle.com (localhost [127.0.0.1]) by mail.comstyle.com (Postfix) with ESMTP id 4X5HRv5hm3z8PbP for ; Fri, 13 Sep 2024 23:56:59 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed; d=comstyle.com; h=date :from:to:subject:message-id:mime-version:content-type; s= default; bh=AY0QcSTqHKA+2sC9ACBPKAH1R5TB8RUXUaPTpku7Cg0=; b=pF4I asXuKV5WoTyaXs4vJB9iplaHp7WZURHqrw7/rHHcDK03rzJrEvczWpHZbW1y6Ndy zrt0zJ8vW7re0aQTRm4NBiioZw0PYyrLhCmQ2HgnMvOPRQlo4mqhE5aeJDwnVU5k J8OlIoOmCfOGE63vdGg7ZYcq84kQioNds7EXF2s= DomainKey-Signature: a=rsa-sha1; c=nofws; d=comstyle.com; h=date:from:to :subject:message-id:mime-version:content-type; q=dns; s=default; b= LBKI+ITqMdc/5a8yfaQzIcUiwv+ajp2l+vfglZy5COMDiJ7DpIeBxlqSnBgcxPVh 2nfozlJ2OABd/KZZVzm9340YYSdl+WLV4/AvhptkBNfBn/2Fm0KpdUtbaV4Zw4vu BHpmT8B/b3IEmf5kkyC6klO8G6+orWFP2U25kFRwYbE= Received: from humpty.home.comstyle.com (unknown [IPv6:2001:470:b050:3:987a:688d:d31c:f11a]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA512) (No client certificate requested) (Authenticated sender: brad) by mail.comstyle.com (Postfix) with ESMTPSA id 4X5HRv3mg5z8PbN for ; Fri, 13 Sep 2024 23:56:59 -0400 (EDT) Date: Fri, 13 Sep 2024 23:56:58 -0400 From: Brad Smith To: ffmpeg-devel@ffmpeg.org Message-ID: MIME-Version: 1.0 Content-Disposition: inline Subject: [FFmpeg-devel] [PATCH v2] libavutil/ppc: Make use of getauxval() and elf_aux_info() on ppc X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" X-TUID: 6AutXQfJxMiy Subject: [PATCH] libavutil/ppc: Make use of getauxval() and elf_aux_info() on ppc Modern Linux has getauxval() and FreeBSD/OpenBSD ppc have elf_aux_info(). Signed-off-by: Brad Smith --- adjust to build with older glibc. libavutil/ppc/cpu.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/libavutil/ppc/cpu.c b/libavutil/ppc/cpu.c index 2b13cda662..5dd23013fb 100644 --- a/libavutil/ppc/cpu.c +++ b/libavutil/ppc/cpu.c @@ -20,6 +20,8 @@ #ifdef __APPLE__ #include +#elif HAVE_GETAUXVAL || HAVE_ELF_AUX_INFO +#include #elif defined(__linux__) #include #include @@ -56,6 +58,26 @@ int ff_get_cpu_flags_ppc(void) if (result == VECTORTYPE_ALTIVEC) return AV_CPU_FLAG_ALTIVEC; return 0; +#elif HAVE_GETAUXVAL || HAVE_ELF_AUX_INFO + int flags = 0; + + unsigned long hwcap = ff_getauxval(AT_HWCAP); +#ifdef PPC_FEATURE2_ARCH_2_07 + unsigned long hwcap2 = ff_getauxval(AT_HWCAP2); +#endif + + if (hwcap & PPC_FEATURE_HAS_ALTIVEC) + flags |= AV_CPU_FLAG_ALTIVEC; +#ifdef PPC_FEATURE_HAS_VSX + if (hwcap & PPC_FEATURE_HAS_VSX) + flags |= AV_CPU_FLAG_VSX; +#endif +#ifdef PPC_FEATURE2_ARCH_2_07 + if (hwcap2 & PPC_FEATURE2_ARCH_2_07) + flags |= AV_CPU_FLAG_POWER8; +#endif + + return flags; #elif defined(__APPLE__) || defined(__NetBSD__) || defined(__OpenBSD__) #if defined(__NetBSD__) || defined(__OpenBSD__) int sels[2] = {CTL_MACHDEP, CPU_ALTIVEC};