/arch/ia64/kernel/sigframe.h

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