/* * Copyright © 2019, VideoLAN and dav1d authors * Copyright © 2019, Janne Grunau * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, this *    list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright notice, *    this list of conditions and the following disclaimer in the documentation *    and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "config.h" #include "common/attributes.h" #include "src/ppc/cpu.h" #if (defined(HAVE_GETAUXVAL) || defined(HAVE_ELF_AUX_INFO)) && ARCH_PPC64LE#include <sys/auxv.h>#define HAVE_AUX#endif COLD unsigned dav1d_get_cpu_flags_ppc(void) {    unsigned flags = 0;#if defined(HAVE_GETAUXVAL) && ARCH_PPC64LE    unsigned long hw_cap = getauxval(AT_HWCAP);#elif defined(HAVE_ELF_AUX_INFO) && ARCH_PPC64LE    unsigned long hw_cap = 0;    elf_aux_info(AT_HWCAP, &hw_cap, sizeof(hw_cap));#endif#ifdef HAVE_AUX    flags |= (hw_cap & PPC_FEATURE_HAS_VSX) ? DAV1D_PPC_CPU_FLAG_VSX : 0;#endif    return flags;}