Diff: wolfcrypt/src/cpuid.c

Revision:

17:ff9d1e86ad5f

Parent:

16:048e5e270a58

--- a/wolfcrypt/src/cpuid.c	Tue Nov 19 14:32:16 2019 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,111 +0,0 @@
-/* cpuid.c
- *
- * Copyright (C) 2006-2017 wolfSSL Inc.
- *
- * This file is part of wolfSSL.
- *
- * wolfSSL 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 2 of the License, or
- * (at your option) any later version.
- *
- * wolfSSL 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 this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
- */
-
-
-#ifdef HAVE_CONFIG_H
-    #include <config.h>
-#endif
-
-#include <wolfssl/wolfcrypt/settings.h>
-
-#include <wolfssl/wolfcrypt/cpuid.h>
-
-#if (defined(WOLFSSL_X86_64_BUILD) || defined(USE_INTEL_SPEEDUP) || \
-     defined(WOLFSSL_AESNI)) && !defined(WOLFSSL_NO_ASM)
-    /* Each platform needs to query info type 1 from cpuid to see if aesni is
-     * supported. Also, let's setup a macro for proper linkage w/o ABI conflicts
-     */
-
-    #ifndef _MSC_VER
-        #define cpuid(reg, leaf, sub)\
-            __asm__ __volatile__ ("cpuid":\
-                "=a" (reg[0]), "=b" (reg[1]), "=c" (reg[2]), "=d" (reg[3]) :\
-                "a" (leaf), "c"(sub));
-
-        #define XASM_LINK(f) asm(f)
-    #else
-        #include <intrin.h>
-
-        #define cpuid(a,b,c) __cpuidex((int*)a,b,c)
-
-        #define XASM_LINK(f)
-    #endif /* _MSC_VER */
-
-    #define EAX 0
-    #define EBX 1
-    #define ECX 2
-    #define EDX 3
-
-    static word32 cpuid_check = 0;
-    static word32 cpuid_flags = 0;
-
-    static word32 cpuid_flag(word32 leaf, word32 sub, word32 num, word32 bit)
-    {
-        int got_intel_cpu = 0;
-        int got_amd_cpu = 0;
-        unsigned int reg[5];
-        reg[4] = '\0';
-        cpuid(reg, 0, 0);
-
-        /* check for Intel cpu */
-        if (XMEMCMP((char *)&(reg[EBX]), "Genu", 4) == 0 &&
-            XMEMCMP((char *)&(reg[EDX]), "ineI", 4) == 0 &&
-            XMEMCMP((char *)&(reg[ECX]), "ntel", 4) == 0) {
-            got_intel_cpu = 1;
-        }
-
-        /* check for AMD cpu */
-        if (XMEMCMP((char *)&(reg[EBX]), "Auth", 4) == 0 &&
-            XMEMCMP((char *)&(reg[EDX]), "enti", 4) == 0 &&
-            XMEMCMP((char *)&(reg[ECX]), "cAMD", 4) == 0) {
-            got_amd_cpu = 1;
-        }
-
-        if (got_intel_cpu || got_amd_cpu) {
-            cpuid(reg, leaf, sub);
-            return ((reg[num] >> bit) & 0x1);
-        }
-        return 0;
-    }
-
-
-    void cpuid_set_flags(void)
-    {
-        if (!cpuid_check) {
-            if (cpuid_flag(1, 0, ECX, 28)) { cpuid_flags |= CPUID_AVX1  ; }
-            if (cpuid_flag(7, 0, EBX,  5)) { cpuid_flags |= CPUID_AVX2  ; }
-            if (cpuid_flag(7, 0, EBX,  8)) { cpuid_flags |= CPUID_BMI2  ; }
-            if (cpuid_flag(1, 0, ECX, 30)) { cpuid_flags |= CPUID_RDRAND; }
-            if (cpuid_flag(7, 0, EBX, 18)) { cpuid_flags |= CPUID_RDSEED; }
-            if (cpuid_flag(1, 0, ECX, 26)) { cpuid_flags |= CPUID_AESNI ; }
-            if (cpuid_flag(7, 0, EBX, 19)) { cpuid_flags |= CPUID_ADX   ; }
-            cpuid_check = 1;
-        }
-    }
-
-    word32 cpuid_get_flags(void)
-    {
-        if (!cpuid_check)
-            cpuid_set_flags();
-        return cpuid_flags;
-    }
-#endif
-