diff options
Diffstat (limited to 'tools/testing/selftests/x86/helpers.h')
| -rw-r--r-- | tools/testing/selftests/x86/helpers.h | 24 |
1 files changed, 4 insertions, 20 deletions
diff --git a/tools/testing/selftests/x86/helpers.h b/tools/testing/selftests/x86/helpers.h index f5ff2a2615df..4ef42c4559a9 100644 --- a/tools/testing/selftests/x86/helpers.h +++ b/tools/testing/selftests/x86/helpers.h @@ -6,36 +6,20 @@ static inline unsigned long get_eflags(void) { - unsigned long eflags; - - asm volatile ( #ifdef __x86_64__ - "subq $128, %%rsp\n\t" - "pushfq\n\t" - "popq %0\n\t" - "addq $128, %%rsp" + return __builtin_ia32_readeflags_u64(); #else - "pushfl\n\t" - "popl %0" + return __builtin_ia32_readeflags_u32(); #endif - : "=r" (eflags) :: "memory"); - - return eflags; } static inline void set_eflags(unsigned long eflags) { - asm volatile ( #ifdef __x86_64__ - "subq $128, %%rsp\n\t" - "pushq %0\n\t" - "popfq\n\t" - "addq $128, %%rsp" + __builtin_ia32_writeeflags_u64(eflags); #else - "pushl %0\n\t" - "popfl" + __builtin_ia32_writeeflags_u32(eflags); #endif - :: "r" (eflags) : "flags", "memory"); } #endif /* __SELFTESTS_X86_HELPERS_H */ |