clang  3.7.0
ia32intrin.h
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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 */
static __inline__ unsigned int __attribute__((__always_inline__, __nodebug__)) __readeflags(void)
Definition: ia32intrin.h:57