1 /* SPDX-License-Identifier: GPL-2.0 */ 2 struct sigscratch { 3 unsigned long scratch_unat; /* ar.unat for the general registers saved in pt */ 4 unsigned long ar_pfs; /* for syscalls, the user-level function-state */ 5 struct pt_regs pt; 6 }; 7 8 struct sigframe { 9 /* 10 * Place signal handler args where user-level unwinder can find them easily. 11 * DO NOT MOVE THESE. They are part of the IA-64 Linux ABI and there is 12 * user-level code that depends on their presence! 13 */ 14 unsigned long arg0; /* signum */ 15 unsigned long arg1; /* siginfo pointer */ 16 unsigned long arg2; /* sigcontext pointer */ 17 /* 18 * End of architected state. 19 */ 20 21 void __user *handler; /* pointer to the plabel of the signal handler */ 22 struct siginfo info; 23 struct sigcontext sc; 24 }; 25 26 extern void ia64_do_signal (struct sigscratch *, long); 27