syscall.sh / xtensa / futex

futex

fast user-space locking

sys_futex_time32(u32 *uaddr, int op, u32 val, const struct old_timespec32 *utime, u32 *uaddr2, u32 val3)
number191 (0xbf)
abicommon
entry pointsys_futex_time32
sinceLinux 5.0
man pagefutex(2)
sourceelixir.bootlin.com

Registers

registervalue
a2191, the syscall number
a6u32 *uaddr
a3int op
a4u32 val
a5const struct old_timespec32 *utime
a8u32 *uaddr2
a9u32 val3
a2the return value

Then run syscall to enter the kernel.

Same syscall on other architectures

Get this as JSON: https://api.syscall.sh/v2/syscalls/xtensa/futex