clang/lib/Headers/cetintrin.h

   1 /*===---- cetintrin.h - CET intrinsic --------------------------------------===
   2  *
   3  * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4  * See https://llvm.org/LICENSE.txt for license information.
   5  * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6  *
   7  *===-----------------------------------------------------------------------===
   8  */
   9
  10 #ifndef __IMMINTRIN_H
  11 #error "Never use <cetintrin.h> directly; include <immintrin.h> instead."
  12 #endif
  13
  14 #ifndef __CETINTRIN_H
  15 #define __CETINTRIN_H
  16
  17 /* Define the default attributes for the functions in this file. */
  18 #define __DEFAULT_FN_ATTRS                                                     \
  19   __attribute__((__always_inline__, __nodebug__, __target__("shstk")))
  20
  21 static __inline__ void __DEFAULT_FN_ATTRS _incsspd(int __a) {
  22   __builtin_ia32_incsspd((unsigned int)__a);
  23 }
  24
  25 #ifdef __x86_64__
  26 static __inline__ void __DEFAULT_FN_ATTRS _incsspq(unsigned long long __a) {
  27   __builtin_ia32_incsspq(__a);
  28 }
  29 #endif /* __x86_64__ */
  30
  31 #ifdef __x86_64__
  32 static __inline__ void __DEFAULT_FN_ATTRS _inc_ssp(unsigned int __a) {
  33   __builtin_ia32_incsspq(__a);
  34 }
  35 #else /* __x86_64__ */
  36 static __inline__ void __DEFAULT_FN_ATTRS _inc_ssp(unsigned int __a) {
  37   __builtin_ia32_incsspd(__a);
  38 }
  39 #endif /* __x86_64__ */
  40
  41 static __inline__ unsigned int __DEFAULT_FN_ATTRS _rdsspd(unsigned int __a) {
  42   return __builtin_ia32_rdsspd(__a);
  43 }
  44
  45 static __inline__ unsigned int __DEFAULT_FN_ATTRS _rdsspd_i32(void) {
  46 #pragma clang diagnostic push
  47 #pragma clang diagnostic ignored "-Wuninitialized"
  48   unsigned int t;
  49   return __builtin_ia32_rdsspd(t);
  50 #pragma clang diagnostic pop
  51 }
  52
  53 #ifdef __x86_64__
  54 static __inline__ unsigned long long __DEFAULT_FN_ATTRS _rdsspq(unsigned long long __a) {
  55   return __builtin_ia32_rdsspq(__a);
  56 }
  57
  58 static __inline__ unsigned long long __DEFAULT_FN_ATTRS _rdsspq_i64(void) {
  59 #pragma clang diagnostic push
  60 #pragma clang diagnostic ignored "-Wuninitialized"
  61   unsigned long long t;
  62   return __builtin_ia32_rdsspq(t);
  63 #pragma clang diagnostic pop
  64 }
  65 #endif /* __x86_64__ */
  66
  67 #ifdef __x86_64__
  68 static __inline__ unsigned long long __DEFAULT_FN_ATTRS _get_ssp(void) {
  69   return __builtin_ia32_rdsspq(0);
  70 }
  71 #else /* __x86_64__ */
  72 static __inline__ unsigned int __DEFAULT_FN_ATTRS _get_ssp(void) {
  73   return __builtin_ia32_rdsspd(0);
  74 }
  75 #endif /* __x86_64__ */
  76
  77 static __inline__ void __DEFAULT_FN_ATTRS _saveprevssp(void) {
  78   __builtin_ia32_saveprevssp();
  79 }
  80
  81 static __inline__ void __DEFAULT_FN_ATTRS _rstorssp(void * __p) {
  82   __builtin_ia32_rstorssp(__p);
  83 }
  84
  85 static __inline__ void __DEFAULT_FN_ATTRS _wrssd(unsigned int __a, void * __p) {
  86   __builtin_ia32_wrssd(__a, __p);
  87 }
  88
  89 #ifdef __x86_64__
  90 static __inline__ void __DEFAULT_FN_ATTRS _wrssq(unsigned long long __a, void * __p) {
  91   __builtin_ia32_wrssq(__a, __p);
  92 }
  93 #endif /* __x86_64__ */
  94
  95 static __inline__ void __DEFAULT_FN_ATTRS _wrussd(unsigned int __a, void * __p) {
  96   __builtin_ia32_wrussd(__a, __p);
  97 }
  98
  99 #ifdef __x86_64__
 100 static __inline__ void __DEFAULT_FN_ATTRS _wrussq(unsigned long long __a, void * __p) {
 101   __builtin_ia32_wrussq(__a, __p);
 102 }
 103 #endif /* __x86_64__ */
 104
 105 static __inline__ void __DEFAULT_FN_ATTRS _setssbsy(void) {
 106   __builtin_ia32_setssbsy();
 107 }
 108
 109 static __inline__ void __DEFAULT_FN_ATTRS _clrssbsy(void * __p) {
 110   __builtin_ia32_clrssbsy(__p);
 111 }
 112
 113 #undef __DEFAULT_FN_ATTRS
 114
 115 #endif /* __CETINTRIN_H */