1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2 #ifndef _UAPI_ASM_X86_SIGNAL_H 3 #define _UAPI_ASM_X86_SIGNAL_H 4 5 #ifndef __ASSEMBLY__ 6 #include <linux/types.h> 7 #include <linux/time.h> 8 #include <linux/compiler.h> 9 10 /* Avoid too many header ordering problems. */ 11 struct siginfo; 12 13 #ifndef __KERNEL__ 14 /* Here we must cater to libcs that poke about in kernel headers. */ 15 16 #define NSIG 32 17 typedef unsigned long sigset_t; 18 19 #endif /* __KERNEL__ */ 20 #endif /* __ASSEMBLY__ */ 21 22 23 #define SIGHUP 1 24 #define SIGINT 2 25 #define SIGQUIT 3 26 #define SIGILL 4 27 #define SIGTRAP 5 28 #define SIGABRT 6 29 #define SIGIOT 6 30 #define SIGBUS 7 31 #define SIGFPE 8 32 #define SIGKILL 9 33 #define SIGUSR1 10 34 #define SIGSEGV 11 35 #define SIGUSR2 12 36 #define SIGPIPE 13 37 #define SIGALRM 14 38 #define SIGTERM 15 39 #define SIGSTKFLT 16 40 #define SIGCHLD 17 41 #define SIGCONT 18 42 #define SIGSTOP 19 43 #define SIGTSTP 20 44 #define SIGTTIN 21 45 #define SIGTTOU 22 46 #define SIGURG 23 47 #define SIGXCPU 24 48 #define SIGXFSZ 25 49 #define SIGVTALRM 26 50 #define SIGPROF 27 51 #define SIGWINCH 28 52 #define SIGIO 29 53 #define SIGPOLL SIGIO 54 /* 55 #define SIGLOST 29 56 */ 57 #define SIGPWR 30 58 #define SIGSYS 31 59 #define SIGUNUSED 31 60 61 /* These should not be considered constants from userland. */ 62 #define SIGRTMIN 32 63 #define SIGRTMAX _NSIG 64 65 /* 66 * SA_FLAGS values: 67 * 68 * SA_ONSTACK indicates that a registered stack_t will be used. 69 * SA_RESTART flag to get restarting signals (which were the default long ago) 70 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop. 71 * SA_RESETHAND clears the handler when the signal is delivered. 72 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies. 73 * SA_NODEFER prevents the current signal from being masked in the handler. 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 0x00000001u 79 #define SA_NOCLDWAIT 0x00000002u 80 #define SA_SIGINFO 0x00000004u 81 #define SA_ONSTACK 0x08000000u 82 #define SA_RESTART 0x10000000u 83 #define SA_NODEFER 0x40000000u 84 #define SA_RESETHAND 0x80000000u 85 86 #define SA_NOMASK SA_NODEFER 87 #define SA_ONESHOT SA_RESETHAND 88 89 #define SA_RESTORER 0x04000000 90 91 #define MINSIGSTKSZ 2048 92 #define SIGSTKSZ 8192 93 94 #include <asm-generic/signal-defs.h> 95 96 #ifndef __ASSEMBLY__ 97 98 99 # ifndef __KERNEL__ 100 /* Here we must cater to libcs that poke about in kernel headers. */ 101 #ifdef __i386__ 102 103 struct sigaction { 104 union { 105 __sighandler_t _sa_handler; 106 void (*_sa_sigaction)(int, struct siginfo *, void *); 107 } _u; 108 sigset_t sa_mask; 109 unsigned long sa_flags; 110 void (*sa_restorer)(void); 111 }; 112 113 #define sa_handler _u._sa_handler 114 #define sa_sigaction _u._sa_sigaction 115 116 #else /* __i386__ */ 117 118 struct sigaction { 119 __sighandler_t sa_handler; 120 unsigned long sa_flags; 121 __sigrestore_t sa_restorer; 122 sigset_t sa_mask; /* mask last for extensibility */ 123 }; 124 125 #endif /* !__i386__ */ 126 # endif /* ! __KERNEL__ */ 127 128 typedef struct sigaltstack { 129 void __user *ss_sp; 130 int ss_flags; 131 size_t ss_size; 132 } stack_t; 133 134 #endif /* __ASSEMBLY__ */ 135 136 #endif /* _UAPI_ASM_X86_SIGNAL_H */ 137