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[cpu] perform check in separate function

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Signed-off-by: r4sas <r4sas@i2pmail.org>
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r4sas 2023-08-10 04:01:50 +03:00
parent 239a93485c
commit 968c6fee5b
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GPG key ID: 66F6C87B98EBCFE2
1 changed files with 33 additions and 8 deletions
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41
libi2pd/CPU.cpp
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@ -9,24 +9,49 @@
#include "CPU.h"
#include "Log.h"
#if defined(_MSC_VER)
#include <intrin.h>
#ifndef bit_AES
#define bit_AES (1 << 25)
#endif
#endif
namespace i2p
{
namespace cpu
{
bool aesni = false;
inline bool cpu_support_aes()
{
#if (_M_AMD64 || __x86_64__) || (_M_IX86 || __i386__)
#if defined(_MSC_VER)
int cpu_info[4];
__cpuid(cpu_info, 1);
return ((cpu_info[2] & bit_AES) != 0)
#elif defined(__clang__)
#if __clang_major__ >= 6
__builtin_cpu_init();
#endif
return __builtin_cpu_supports("aes");
#elif defined(__GNUC__)
__builtin_cpu_init();
return __builtin_cpu_supports("aes");
#else
return false;
#endif
#else
return false;
#endif
}
void Detect(bool AesSwitch, bool force)
{
#if defined(__x86_64__) || defined(__i386__)
__builtin_cpu_init ();
#if defined (_WIN32) && (WINVER == 0x0501) // WinXP
if (AesSwitch && force) { // only if forced
#else
if ((__builtin_cpu_supports ("aes") && AesSwitch) || (AesSwitch && force)) {
#endif
if ((cpu_support_aes() && AesSwitch) || (AesSwitch && force)) {
aesni = true;
}
#endif
LogPrint(eLogInfo, "AESNI ", (aesni ? "enabled" : "disabled"));
}
}