diff options
Diffstat (limited to 'tools/testing/selftests/x86/helpers.h')
| -rw-r--r-- | tools/testing/selftests/x86/helpers.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/tools/testing/selftests/x86/helpers.h b/tools/testing/selftests/x86/helpers.h new file mode 100644 index 0000000000..4ef42c4559 --- /dev/null +++ b/tools/testing/selftests/x86/helpers.h @@ -0,0 +1,25 @@ +// SPDX-License-Identifier: GPL-2.0-only +#ifndef __SELFTESTS_X86_HELPERS_H +#define __SELFTESTS_X86_HELPERS_H + +#include <asm/processor-flags.h> + +static inline unsigned long get_eflags(void) +{ +#ifdef __x86_64__ + return __builtin_ia32_readeflags_u64(); +#else + return __builtin_ia32_readeflags_u32(); +#endif +} + +static inline void set_eflags(unsigned long eflags) +{ +#ifdef __x86_64__ + __builtin_ia32_writeeflags_u64(eflags); +#else + __builtin_ia32_writeeflags_u32(eflags); +#endif +} + +#endif /* __SELFTESTS_X86_HELPERS_H */ |