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      1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
      2 #ifndef _UAPI_ASMARM_SIGNAL_H
      3 #define _UAPI_ASMARM_SIGNAL_H
      4 
      5 #include <linux/types.h>
      6 
      7 /* Avoid too many header ordering problems.  */
      8 struct siginfo;
      9 
     10 #ifndef __KERNEL__
     11 /* Here we must cater to libcs that poke about in kernel headers.  */
     12 
     13 #define NSIG		32
     14 typedef unsigned long sigset_t;
     15 
     16 #endif /* __KERNEL__ */
     17 
     18 #define SIGHUP		 1
     19 #define SIGINT		 2
     20 #define SIGQUIT		 3
     21 #define SIGILL		 4
     22 #define SIGTRAP		 5
     23 #define SIGABRT		 6
     24 #define SIGIOT		 6
     25 #define SIGBUS		 7
     26 #define SIGFPE		 8
     27 #define SIGKILL		 9
     28 #define SIGUSR1		10
     29 #define SIGSEGV		11
     30 #define SIGUSR2		12
     31 #define SIGPIPE		13
     32 #define SIGALRM		14
     33 #define SIGTERM		15
     34 #define SIGSTKFLT	16
     35 #define SIGCHLD		17
     36 #define SIGCONT		18
     37 #define SIGSTOP		19
     38 #define SIGTSTP		20
     39 #define SIGTTIN		21
     40 #define SIGTTOU		22
     41 #define SIGURG		23
     42 #define SIGXCPU		24
     43 #define SIGXFSZ		25
     44 #define SIGVTALRM	26
     45 #define SIGPROF		27
     46 #define SIGWINCH	28
     47 #define SIGIO		29
     48 #define SIGPOLL		SIGIO
     49 /*
     50 #define SIGLOST		29
     51 */
     52 #define SIGPWR		30
     53 #define SIGSYS		31
     54 #define	SIGUNUSED	31
     55 
     56 /* These should not be considered constants from userland.  */
     57 #define SIGRTMIN	32
     58 #define SIGRTMAX	_NSIG
     59 
     60 #define SIGSWI		32
     61 
     62 /*
     63  * SA_FLAGS values:
     64  *
     65  * SA_NOCLDSTOP		flag to turn off SIGCHLD when children stop.
     66  * SA_NOCLDWAIT		flag on SIGCHLD to inhibit zombies.
     67  * SA_SIGINFO		deliver the signal with SIGINFO structs
     68  * SA_THIRTYTWO		delivers the signal in 32-bit mode, even if the task
     69  *			is running in 26-bit.
     70  * SA_ONSTACK		allows alternate signal stacks (see sigaltstack(2)).
     71  * SA_RESTART		flag to get restarting signals (which were the default long ago)
     72  * SA_NODEFER		prevents the current signal from being masked in the handler.
     73  * SA_RESETHAND		clears the handler when the signal is delivered.
     74  *
     75  * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
     76  * Unix names RESETHAND and NODEFER respectively.
     77  */
     78 #define SA_NOCLDSTOP	0x00000001
     79 #define SA_NOCLDWAIT	0x00000002
     80 #define SA_SIGINFO	0x00000004
     81 #define SA_THIRTYTWO	0x02000000
     82 #define SA_RESTORER	0x04000000
     83 #define SA_ONSTACK	0x08000000
     84 #define SA_RESTART	0x10000000
     85 #define SA_NODEFER	0x40000000
     86 #define SA_RESETHAND	0x80000000
     87 
     88 #define SA_NOMASK	SA_NODEFER
     89 #define SA_ONESHOT	SA_RESETHAND
     90 
     91 #define MINSIGSTKSZ	2048
     92 #define SIGSTKSZ	8192
     93 
     94 #include <asm-generic/signal-defs.h>
     95 
     96 #ifndef __KERNEL__
     97 /* Here we must cater to libcs that poke about in kernel headers.  */
     98 
     99 struct sigaction {
    100 	union {
    101 	  __sighandler_t _sa_handler;
    102 	  void (*_sa_sigaction)(int, struct siginfo *, void *);
    103 	} _u;
    104 	sigset_t sa_mask;
    105 	unsigned long sa_flags;
    106 	void (*sa_restorer)(void);
    107 };
    108 
    109 #define sa_handler	_u._sa_handler
    110 #define sa_sigaction	_u._sa_sigaction
    111 
    112 #endif /* __KERNEL__ */
    113 
    114 typedef struct sigaltstack {
    115 	void __user *ss_sp;
    116 	int ss_flags;
    117 	size_t ss_size;
    118 } stack_t;
    119 
    120 
    121 #endif /* _UAPI_ASMARM_SIGNAL_H */
    122