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 15typedef unsigned long old_sigset_t; /* at least 32 bits */ 16 17typedef 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__ 95struct 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 102struct 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 110typedef 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 */ 126struct 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