Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) struct sigscratch {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) 	unsigned long scratch_unat;	/* ar.unat for the general registers saved in pt */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) 	unsigned long ar_pfs;		/* for syscalls, the user-level function-state  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) 	struct pt_regs pt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) struct sigframe {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 	 * Place signal handler args where user-level unwinder can find them easily.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 	 * DO NOT MOVE THESE.  They are part of the IA-64 Linux ABI and there is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 	 * user-level code that depends on their presence!
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 	unsigned long arg0;		/* signum */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 	unsigned long arg1;		/* siginfo pointer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 	unsigned long arg2;		/* sigcontext pointer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	 * End of architected state.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 	void __user *handler;		/* pointer to the plabel of the signal handler */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	struct siginfo info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	struct sigcontext sc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) extern void ia64_do_signal (struct sigscratch *, long);