Contributors: 4
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Andrew Lutomirski |
201 |
92.63% |
5 |
62.50% |
| Chang S. Bae |
12 |
5.53% |
1 |
12.50% |
| Muhammad Usama Anjum |
3 |
1.38% |
1 |
12.50% |
| Thomas Gleixner |
1 |
0.46% |
1 |
12.50% |
| Total |
217 |
|
8 |
|
// SPDX-License-Identifier: GPL-2.0-only
#ifndef __SELFTESTS_X86_HELPERS_H
#define __SELFTESTS_X86_HELPERS_H
#include <signal.h>
#include <string.h>
#include <asm/processor-flags.h>
#include "../kselftest.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
}
static inline void sethandler(int sig, void (*handler)(int, siginfo_t *, void *), int flags)
{
struct sigaction sa;
memset(&sa, 0, sizeof(sa));
sa.sa_sigaction = handler;
sa.sa_flags = SA_SIGINFO | flags;
sigemptyset(&sa.sa_mask);
if (sigaction(sig, &sa, 0))
ksft_exit_fail_msg("sigaction failed");
}
static inline void clearhandler(int sig)
{
struct sigaction sa;
memset(&sa, 0, sizeof(sa));
sa.sa_handler = SIG_DFL;
sigemptyset(&sa.sa_mask);
if (sigaction(sig, &sa, 0))
ksft_exit_fail_msg("sigaction failed");
}
#endif /* __SELFTESTS_X86_HELPERS_H */