LCOV - code coverage report
Current view: top level - src/compat - cpuid.h (source / functions) Hit Total Coverage
Test: fuzz_coverage.info Lines: 3 3 100.0 %
Date: 2023-10-05 12:38:51 Functions: 1 1 100.0 %
Branches: 0 0 -

           Branch data     Line data    Source code
       1                 :            : // Copyright (c) 2017-2022 The Bitcoin Core developers
       2                 :            : // Distributed under the MIT software license, see the accompanying
       3                 :            : // file COPYING or http://www.opensource.org/licenses/mit-license.php.
       4                 :            : 
       5                 :            : #ifndef BITCOIN_COMPAT_CPUID_H
       6                 :            : #define BITCOIN_COMPAT_CPUID_H
       7                 :            : 
       8                 :            : #if defined(__x86_64__) || defined(__amd64__) || defined(__i386__)
       9                 :            : #define HAVE_GETCPUID
      10                 :            : 
      11                 :            : #include <cpuid.h>
      12                 :            : 
      13                 :            : #include <cstdint>
      14                 :            : 
      15                 :            : // We can't use cpuid.h's __get_cpuid as it does not support subleafs.
      16                 :        116 : void static inline GetCPUID(uint32_t leaf, uint32_t subleaf, uint32_t& a, uint32_t& b, uint32_t& c, uint32_t& d)
      17                 :            : {
      18                 :            : #ifdef __GNUC__
      19                 :        116 :     __cpuid_count(leaf, subleaf, a, b, c, d);
      20                 :            : #else
      21                 :            :   __asm__ ("cpuid" : "=a"(a), "=b"(b), "=c"(c), "=d"(d) : "0"(leaf), "2"(subleaf));
      22                 :            : #endif
      23                 :        116 : }
      24                 :            : 
      25                 :            : #endif // defined(__x86_64__) || defined(__amd64__) || defined(__i386__)
      26                 :            : #endif // BITCOIN_COMPAT_CPUID_H

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