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      1 /* ===-------- ia32intrin.h ---------------------------------------------------===
      2  *
      3  * Permission is hereby granted, free of charge, to any person obtaining a copy
      4  * of this software and associated documentation files (the "Software"), to deal
      5  * in the Software without restriction, including without limitation the rights
      6  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
      7  * copies of the Software, and to permit persons to whom the Software is
      8  * furnished to do so, subject to the following conditions:
      9  *
     10  * The above copyright notice and this permission notice shall be included in
     11  * all copies or substantial portions of the Software.
     12  *
     13  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     14  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     15  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
     16  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     17  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
     18  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
     19  * THE SOFTWARE.
     20  *
     21  *===-----------------------------------------------------------------------===
     22  */
     23 
     24 #ifndef __X86INTRIN_H
     25 #error "Never use <ia32intrin.h> directly; include <x86intrin.h> instead."
     26 #endif
     27 
     28 #ifndef __IA32INTRIN_H
     29 #define __IA32INTRIN_H
     30 
     31 #ifdef __x86_64__
     32 static __inline__ unsigned long long __attribute__((__always_inline__, __nodebug__))
     33 __readeflags(void)
     34 {
     35   unsigned long long __res = 0;
     36   __asm__ __volatile__ ("pushf\n\t"
     37                         "popq %0\n"
     38                         :"=r"(__res)
     39                         :
     40                         :
     41                        );
     42   return __res;
     43 }
     44 
     45 static __inline__ void __attribute__((__always_inline__, __nodebug__))
     46 __writeeflags(unsigned long long __f)
     47 {
     48   __asm__ __volatile__ ("pushq %0\n\t"
     49                         "popf\n"
     50                         :
     51                         :"r"(__f)
     52                         :"flags"
     53                        );
     54 }
     55 
     56 #else /* !__x86_64__ */
     57 static __inline__ unsigned int __attribute__((__always_inline__, __nodebug__))
     58 __readeflags(void)
     59 {
     60   unsigned int __res = 0;
     61   __asm__ __volatile__ ("pushf\n\t"
     62                         "popl %0\n"
     63                         :"=r"(__res)
     64                         :
     65                         :
     66                        );
     67   return __res;
     68 }
     69 
     70 static __inline__ void __attribute__((__always_inline__, __nodebug__))
     71 __writeeflags(unsigned int __f)
     72 {
     73   __asm__ __volatile__ ("pushl %0\n\t"
     74                         "popf\n"
     75                         :
     76                         :"r"(__f)
     77                         :"flags"
     78                        );
     79 }
     80 #endif /* !__x86_64__ */
     81 
     82 static __inline__ unsigned long long __attribute__((__always_inline__, __nodebug__))
     83 __rdpmc(int __A) {
     84   return __builtin_ia32_rdpmc(__A);
     85 }
     86 
     87 /* __rdtsc */
     88 static __inline__ unsigned long long __attribute__((__always_inline__, __nodebug__))
     89 __rdtsc(void) {
     90   return __builtin_ia32_rdtsc();
     91 }
     92 
     93 /* __rdtscp */
     94 static __inline__ unsigned long long __attribute__((__always_inline__, __nodebug__))
     95 __rdtscp(unsigned int *__A) {
     96   return __builtin_ia32_rdtscp(__A);
     97 }
     98 
     99 #define _rdtsc() __rdtsc()
    100 
    101 #endif /* __IA32INTRIN_H */
    102