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Server : LiteSpeed System : Linux srv526460274 5.15.0-164-generic #174-Ubuntu SMP Fri Nov 14 20:25:16 UTC 2025 x86_64 User : kerao9884 ( 1082) PHP Version : 8.0.30 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare, Directory : /usr/src/linux-headers-5.15.0-138-generic/arch/sh/include/asm/ |
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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ASM_SH_FUTEX_CAS_H
#define __ASM_SH_FUTEX_CAS_H
static inline int atomic_futex_op_cmpxchg_inatomic(u32 *uval,
u32 __user *uaddr,
u32 oldval, u32 newval)
{
int err = 0;
__asm__ __volatile__(
"1:\n\t"
"cas.l %2, %1, @r0\n"
"2:\n\t"
#ifdef CONFIG_MMU
".section .fixup,\"ax\"\n"
"3:\n\t"
"mov.l 4f, %0\n\t"
"jmp @%0\n\t"
" mov %3, %0\n\t"
".balign 4\n"
"4: .long 2b\n\t"
".previous\n"
".section __ex_table,\"a\"\n\t"
".long 1b, 3b\n\t"
".previous"
#endif
:"+r" (err), "+r" (newval)
:"r" (oldval), "i" (-EFAULT), "z" (uaddr)
:"t", "memory");
if (err) return err;
*uval = newval;
return 0;
}
#endif /* __ASM_SH_FUTEX_CAS_H */