1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2 #ifndef _UAPI_ASM_POWERPC_SIGNAL_H 3 #define _UAPI_ASM_POWERPC_SIGNAL_H 4 5 #include <linux/types.h> 6 7 #define _NSIG 64 8 #ifdef __powerpc64__ 9 #define _NSIG_BPW 64 10 #else 11 #define _NSIG_BPW 32 12 #endif 13 #define _NSIG_WORDS (_NSIG / _NSIG_BPW) 14 15 typedef unsigned long old_sigset_t; /* at least 32 bits */ 16 17 typedef struct { 18 unsigned long sig[_NSIG_WORDS]; 19 } sigset_t; 20 21 #define SIGHUP 1 22 #define SIGINT 2 23 #define SIGQUIT 3 24 #define SIGILL 4 25 #define SIGTRAP 5 26 #define SIGABRT 6 27 #define SIGIOT 6 28 #define SIGBUS 7 29 #define SIGFPE 8 30 #define SIGKILL 9 31 #define SIGUSR1 10 32 #define SIGSEGV 11 33 #define SIGUSR2 12 34 #define SIGPIPE 13 35 #define SIGALRM 14 36 #define SIGTERM 15 37 #define SIGSTKFLT 16 38 #define SIGCHLD 17 39 #define SIGCONT 18 40 #define SIGSTOP 19 41 #define SIGTSTP 20 42 #define SIGTTIN 21 43 #define SIGTTOU 22 44 #define SIGURG 23 45 #define SIGXCPU 24 46 #define SIGXFSZ 25 47 #define SIGVTALRM 26 48 #define SIGPROF 27 49 #define SIGWINCH 28 50 #define SIGIO 29 51 #define SIGPOLL SIGIO 52 /* 53 #define SIGLOST 29 54 */ 55 #define SIGPWR 30 56 #define SIGSYS 31 57 #define SIGUNUSED 31 58 59 /* These should not be considered constants from userland. */ 60 #define SIGRTMIN 32 61 #define SIGRTMAX _NSIG 62 63 /* 64 * SA_FLAGS values: 65 * 66 * SA_ONSTACK is not currently supported, but will allow sigaltstack(2). 67 * SA_RESTART flag to get restarting signals (which were the default long ago) 68 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop. 69 * SA_RESETHAND clears the handler when the signal is delivered. 70 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies. 71 * SA_NODEFER prevents the current signal from being masked in the handler. 72 * 73 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single 74 * Unix names RESETHAND and NODEFER respectively. 75 */ 76 #define SA_NOCLDSTOP 0x00000001U 77 #define SA_NOCLDWAIT 0x00000002U 78 #define SA_SIGINFO 0x00000004U 79 #define SA_ONSTACK 0x08000000U 80 #define SA_RESTART 0x10000000U 81 #define SA_NODEFER 0x40000000U 82 #define SA_RESETHAND 0x80000000U 83 84 #define SA_NOMASK SA_NODEFER 85 #define SA_ONESHOT SA_RESETHAND 86 87 #define SA_RESTORER 0x04000000U 88 89 #define MINSIGSTKSZ 2048 90 #define SIGSTKSZ 8192 91 92 #include <asm-generic/signal-defs.h> 93 94 #ifndef __KERNEL__ 95 struct old_sigaction { 96 __sighandler_t sa_handler; 97 old_sigset_t sa_mask; 98 unsigned long sa_flags; 99 __sigrestore_t sa_restorer; 100 }; 101 102 struct sigaction { 103 __sighandler_t sa_handler; 104 unsigned long sa_flags; 105 __sigrestore_t sa_restorer; 106 sigset_t sa_mask; /* mask last for extensibility */ 107 }; 108 #endif 109 110 typedef struct sigaltstack { 111 void __user *ss_sp; 112 int ss_flags; 113 size_t ss_size; 114 } stack_t; 115 116 117 #ifndef __powerpc64__ 118 /* 119 * These are parameters to dbg_sigreturn syscall. They enable or 120 * disable certain debugging things that can be done from signal 121 * handlers. The dbg_sigreturn syscall *must* be called from a 122 * SA_SIGINFO signal so the ucontext can be passed to it. It takes an 123 * array of struct sig_dbg_op, which has the debug operations to 124 * perform before returning from the signal. 125 */ 126 struct sig_dbg_op { 127 int dbg_type; 128 unsigned long dbg_value; 129 }; 130 131 /* Enable or disable single-stepping. The value sets the state. */ 132 #define SIG_DBG_SINGLE_STEPPING 1 133 134 /* Enable or disable branch tracing. The value sets the state. */ 135 #define SIG_DBG_BRANCH_TRACING 2 136 #endif /* ! __powerpc64__ */ 137 138 #endif /* _UAPI_ASM_POWERPC_SIGNAL_H */ 139