1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2/* 3 * include/asm-xtensa/signal.h 4 * 5 * Swiped from SH. 6 * 7 * This file is subject to the terms and conditions of the GNU General Public 8 * License. See the file "COPYING" in the main directory of this archive 9 * for more details. 10 * 11 * Copyright (C) 2001 - 2005 Tensilica Inc. 12 */ 13 14#ifndef _UAPI_XTENSA_SIGNAL_H 15#define _UAPI_XTENSA_SIGNAL_H 16 17 18#define _NSIG 64 19#define _NSIG_BPW 32 20#define _NSIG_WORDS (_NSIG / _NSIG_BPW) 21 22#ifndef __ASSEMBLY__ 23 24#include <linux/types.h> 25 26/* Avoid too many header ordering problems. */ 27struct siginfo; 28typedef unsigned long old_sigset_t; /* at least 32 bits */ 29typedef struct { 30 unsigned long sig[_NSIG_WORDS]; 31} sigset_t; 32 33#endif 34 35#define SIGHUP 1 36#define SIGINT 2 37#define SIGQUIT 3 38#define SIGILL 4 39#define SIGTRAP 5 40#define SIGABRT 6 41#define SIGIOT 6 42#define SIGBUS 7 43#define SIGFPE 8 44#define SIGKILL 9 45#define SIGUSR1 10 46#define SIGSEGV 11 47#define SIGUSR2 12 48#define SIGPIPE 13 49#define SIGALRM 14 50#define SIGTERM 15 51#define SIGSTKFLT 16 52#define SIGCHLD 17 53#define SIGCONT 18 54#define SIGSTOP 19 55#define SIGTSTP 20 56#define SIGTTIN 21 57#define SIGTTOU 22 58#define SIGURG 23 59#define SIGXCPU 24 60#define SIGXFSZ 25 61#define SIGVTALRM 26 62#define SIGPROF 27 63#define SIGWINCH 28 64#define SIGIO 29 65#define SIGPOLL SIGIO 66/* #define SIGLOST 29 */ 67#define SIGPWR 30 68#define SIGSYS 31 69#define SIGUNUSED 31 70 71/* These should not be considered constants from userland. */ 72#define SIGRTMIN 32 73#define SIGRTMAX (_NSIG-1) 74 75/* 76 * SA_FLAGS values: 77 * 78 * SA_ONSTACK indicates that a registered stack_t will be used. 79 * SA_RESTART flag to get restarting signals (which were the default long ago) 80 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop. 81 * SA_RESETHAND clears the handler when the signal is delivered. 82 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies. 83 * SA_NODEFER prevents the current signal from being masked in the handler. 84 * 85 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single 86 * Unix names RESETHAND and NODEFER respectively. 87 */ 88#define SA_NOCLDSTOP 0x00000001 89#define SA_NOCLDWAIT 0x00000002 /* not supported yet */ 90#define SA_SIGINFO 0x00000004 91#define SA_ONSTACK 0x08000000 92#define SA_RESTART 0x10000000 93#define SA_NODEFER 0x40000000 94#define SA_RESETHAND 0x80000000 95 96#define SA_NOMASK SA_NODEFER 97#define SA_ONESHOT SA_RESETHAND 98 99#define SA_RESTORER 0x04000000 100 101#define MINSIGSTKSZ 2048 102#define SIGSTKSZ 8192 103 104#ifndef __ASSEMBLY__ 105 106#include <asm-generic/signal-defs.h> 107 108#ifndef __KERNEL__ 109 110/* Here we must cater to libcs that poke about in kernel headers. */ 111 112struct sigaction { 113 union { 114 __sighandler_t _sa_handler; 115 void (*_sa_sigaction)(int, struct siginfo *, void *); 116 } _u; 117 sigset_t sa_mask; 118 unsigned long sa_flags; 119 void (*sa_restorer)(void); 120}; 121 122#define sa_handler _u._sa_handler 123#define sa_sigaction _u._sa_sigaction 124 125#endif /* __KERNEL__ */ 126 127typedef struct sigaltstack { 128 void *ss_sp; 129 int ss_flags; 130 size_t ss_size; 131} stack_t; 132 133#endif /* __ASSEMBLY__ */ 134#endif /* _UAPI_XTENSA_SIGNAL_H */ 135