/* SPDX-License-Identifier: GPL-2.0 */ struct sigscratch { unsigned long scratch_unat; /* ar.unat for the general registers saved in pt */ unsigned long ar_pfs; /* for syscalls, the user-level function-state */ struct pt_regs pt; }; struct sigframe { /* * Place signal handler args where user-level unwinder can find them easily. * DO NOT MOVE THESE. They are part of the IA-64 Linux ABI and there is * user-level code that depends on their presence! */ unsigned long arg0; /* signum */ unsigned long arg1; /* siginfo pointer */ unsigned long arg2; /* sigcontext pointer */ /* * End of architected state. */ void __user *handler; /* pointer to the plabel of the signal handler */ struct siginfo info; struct sigcontext sc; }; extern void ia64_do_signal (struct sigscratch *, long);