~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

TOMOYO Linux Cross Reference
Linux/tools/testing/selftests/x86/helpers.h

Version: ~ [ linux-6.1-rc7 ] ~ [ linux-6.0.10 ] ~ [ linux-5.19.17 ] ~ [ linux-5.18.19 ] ~ [ linux-5.17.15 ] ~ [ linux-5.16.20 ] ~ [ linux-5.15.80 ] ~ [ linux-5.14.21 ] ~ [ linux-5.13.19 ] ~ [ linux-5.12.19 ] ~ [ linux-5.11.22 ] ~ [ linux-5.10.156 ] ~ [ linux-5.9.16 ] ~ [ linux-5.8.18 ] ~ [ linux-5.7.19 ] ~ [ linux-5.6.19 ] ~ [ linux-5.5.19 ] ~ [ linux-5.4.225 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.267 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.300 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.334 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.302 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.10.108 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.9 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 // SPDX-License-Identifier: GPL-2.0-only
  2 #ifndef __SELFTESTS_X86_HELPERS_H
  3 #define __SELFTESTS_X86_HELPERS_H
  4 
  5 #include <asm/processor-flags.h>
  6 
  7 static inline unsigned long get_eflags(void)
  8 {
  9         unsigned long eflags;
 10 
 11         asm volatile (
 12 #ifdef __x86_64__
 13                 "subq $128, %%rsp\n\t"
 14                 "pushfq\n\t"
 15                 "popq %0\n\t"
 16                 "addq $128, %%rsp"
 17 #else
 18                 "pushfl\n\t"
 19                 "popl %0"
 20 #endif
 21                 : "=r" (eflags) :: "memory");
 22 
 23         return eflags;
 24 }
 25 
 26 static inline void set_eflags(unsigned long eflags)
 27 {
 28         asm volatile (
 29 #ifdef __x86_64__
 30                 "subq $128, %%rsp\n\t"
 31                 "pushq %0\n\t"
 32                 "popfq\n\t"
 33                 "addq $128, %%rsp"
 34 #else
 35                 "pushl %0\n\t"
 36                 "popfl"
 37 #endif
 38                 :: "r" (eflags) : "flags", "memory");
 39 }
 40 
 41 #endif /* __SELFTESTS_X86_HELPERS_H */
 42 

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | Wiki (Japanese) | Wiki (English) | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

osdn.jp