diff options
| -rw-r--r-- | src/common/Makefile.am | 3 | ||||
| -rw-r--r-- | src/common/cpu.c | 100 | ||||
| -rw-r--r-- | src/common/cpu.h | 50 |
3 files changed, 153 insertions, 0 deletions
diff --git a/src/common/Makefile.am b/src/common/Makefile.am index 638eee0..2f6fd6d 100644 --- a/src/common/Makefile.am +++ b/src/common/Makefile.am @@ -9,6 +9,7 @@ libcommon_la_SOURCES = \ bits.h bits.c \ compression.h compression.c \ cpp.h \ + cpu.h cpu.c \ dllist.h dllist.c \ endianness.h endianness.c \ environment.h environment.c \ @@ -37,6 +38,8 @@ libcommon_la_SOURCES += \ endif +cpu.lo: CFLAGS += -mavx512f + libcommon_la_CFLAGS = $(TOOLKIT_CFLAGS) $(LIBXML_CFLAGS) if BUILD_CURL_SUPPORT diff --git a/src/common/cpu.c b/src/common/cpu.c new file mode 100644 index 0000000..968def5 --- /dev/null +++ b/src/common/cpu.c @@ -0,0 +1,100 @@ + +/* Chrysalide - Outil d'analyse de fichiers binaires + * cpu.c - obtention d'indications de fonctionnalités liées au CPU + * + * Copyright (C) 2022 Cyrille Bagard + * + * This file is part of Chrysalide. + * + * Chrysalide is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3 of the License, or + * (at your option) any later version. + * + * Chrysalide is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with Chrysalide. If not, see <http://www.gnu.org/licenses/>. + */ + + +#include "cpu.h" + + + +/****************************************************************************** +* * +* Paramètres : - * +* * +* Description : Indique les capacités de calculs parallèles anticipées. * +* * +* Retour : Fonctionnalités disponibles lors de la compilation. * +* * +* Remarques : - * +* * +******************************************************************************/ + +CPUSMIDFeature get_supported_cpu_smid_feature(void) +{ + CPUSMIDFeature result; /* Indications à retourner */ + + result = CSF_NONE; + + /** + * $ gcc -mavx512f -dM -E - < /dev/null | grep AVX + * #define __AVX512F__ 1 + * #define __AVX__ 1 + * #define __AVX2__ 1 + */ + +#ifdef __AVX2__ + result |= CSF_AVX2; +#endif + +#ifdef __AVX512F__ + result |= CSF_AVX512; +#endif + + return result; + +} + + +/****************************************************************************** +* * +* Paramètres : - * +* * +* Description : Indique les capacités de calculs parallèles sollicitables. * +* * +* Retour : Fonctionnalités disponibles dans l'environnement. * +* * +* Remarques : - * +* * +******************************************************************************/ + +CPUSMIDFeature get_avalaible_cpu_smid_feature(void) +{ + CPUSMIDFeature result; /* Indications à retourner */ + + result = CSF_NONE; + + /** + * Cf. Documentations suivantes : + * - https://www.intel.com/content/dam/develop/external/us/en/documents/how-to-detect-new-instruction-support-in-the-4th-generation-intel-core-processor-family.pdf + * - https://gcc.gnu.org/onlinedocs/gcc/x86-Built-in-Functions.html + */ + + __builtin_cpu_init(); + + if (__builtin_cpu_supports("ssse3")) + result |= CSF_AVX2; + + if (__builtin_cpu_supports("avx512f")) + result |= CSF_AVX512; + + return result; + +} diff --git a/src/common/cpu.h b/src/common/cpu.h new file mode 100644 index 0000000..58e53bd --- /dev/null +++ b/src/common/cpu.h @@ -0,0 +1,50 @@ + +/* Chrysalide - Outil d'analyse de fichiers binaires + * cpu.h - prototypes pour l'obtention d'indications de fonctionnalités liées au CPU + * + * Copyright (C) 2022 Cyrille Bagard + * + * This file is part of Chrysalide. + * + * Chrysalide is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3 of the License, or + * (at your option) any later version. + * + * Chrysalide is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with Chrysalide. If not, see <http://www.gnu.org/licenses/>. + */ + + +#ifndef _COMMON_CPU_H +#define _COMMON_CPU_H + + + +/* Indication de capacité de calculs parallèles */ +typedef enum _CPUSMIDFeature +{ + CSF_NONE = (0 << 0), /* Absence d'indication */ + + CSF_AVX2 = (1 << 0), /* Advanced Vector Extensions */ + CSF_AVX512 = (1 << 1), /* Advanced Vector Extensions */ + + CSF_ALL = ((1 << 2) - 1), + +} CPUSMIDFeature; + + +/* Indique les capacités de calculs parallèles anticipées. */ +CPUSMIDFeature get_supported_cpu_smid_feature(void); + +/* Indique les capacités de calculs parallèles sollicitables. */ +CPUSMIDFeature get_avalaible_cpu_smid_feature(void); + + + +#endif /* _COMMON_CPU_H */ |