1 #ifndef _ASMARM_SIGNAL_H 2 #define _ASMARM_SIGNAL_H 3 4 #include <linux/types.h> 5 6 /* Avoid too many header ordering problems. */ 7 struct siginfo; 8 9 #ifdef __KERNEL__ 10 /* Most things should be clean enough to redefine this at will, if care 11 is taken to make libc match. */ 12 13 #define _NSIG 64 14 #define _NSIG_BPW 32 15 #define _NSIG_WORDS (_NSIG / _NSIG_BPW) 16 17 typedef unsigned long old_sigset_t; /* at least 32 bits */ 18 19 typedef struct { 20 unsigned long sig[_NSIG_WORDS]; 21 } sigset_t; 22 23 #else 24 /* Here we must cater to libcs that poke about in kernel headers. */ 25 26 #define NSIG 32 27 typedef unsigned long sigset_t; 28 29 #endif /* __KERNEL__ */ 30 31 #define SIGHUP 1 32 #define SIGINT 2 33 #define SIGQUIT 3 34 #define SIGILL 4 35 #define SIGTRAP 5 36 #define SIGABRT 6 37 #define SIGIOT 6 38 #define SIGBUS 7 39 #define SIGFPE 8 40 #define SIGKILL 9 41 #define SIGUSR1 10 42 #define SIGSEGV 11 43 #define SIGUSR2 12 44 #define SIGPIPE 13 45 #define SIGALRM 14 46 #define SIGTERM 15 47 #define SIGSTKFLT 16 48 #define SIGCHLD 17 49 #define SIGCONT 18 50 #define SIGSTOP 19 51 #define SIGTSTP 20 52 #define SIGTTIN 21 53 #define SIGTTOU 22 54 #define SIGURG 23 55 #define SIGXCPU 24 56 #define SIGXFSZ 25 57 #define SIGVTALRM 26 58 #define SIGPROF 27 59 #define SIGWINCH 28 60 #define SIGIO 29 61 #define SIGPOLL SIGIO 62 /* 63 #define SIGLOST 29 64 */ 65 #define SIGPWR 30 66 #define SIGSYS 31 67 #define SIGUNUSED 31 68 69 /* These should not be considered constants from userland. */ 70 #define SIGRTMIN 32 71 #define SIGRTMAX _NSIG 72 73 #define SIGSWI 32 74 75 /* 76 * SA_FLAGS values: 77 * 78 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop. 79 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies. 80 * SA_SIGINFO deliver the signal with SIGINFO structs 81 * SA_THIRTYTWO delivers the signal in 32-bit mode, even if the task 82 * is running in 26-bit. 83 * SA_ONSTACK allows alternate signal stacks (see sigaltstack(2)). 84 * SA_RESTART flag to get restarting signals (which were the default long ago) 85 * SA_NODEFER prevents the current signal from being masked in the handler. 86 * SA_RESETHAND clears the handler when the signal is delivered. 87 * 88 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single 89 * Unix names RESETHAND and NODEFER respectively. 90 */ 91 #define SA_NOCLDSTOP 0x00000001 92 #define SA_NOCLDWAIT 0x00000002 93 #define SA_SIGINFO 0x00000004 94 #define SA_THIRTYTWO 0x02000000 95 #define SA_RESTORER 0x04000000 96 #define SA_ONSTACK 0x08000000 97 #define SA_RESTART 0x10000000 98 #define SA_NODEFER 0x40000000 99 #define SA_RESETHAND 0x80000000 100 101 #define SA_NOMASK SA_NODEFER 102 #define SA_ONESHOT SA_RESETHAND 103 104 105 /* 106 * sigaltstack controls 107 */ 108 #define SS_ONSTACK 1 109 #define SS_DISABLE 2 110 111 #define MINSIGSTKSZ 2048 112 #define SIGSTKSZ 8192 113 114 #include <asm-generic/signal.h> 115 116 #ifdef __KERNEL__ 117 struct old_sigaction { 118 __sighandler_t sa_handler; 119 old_sigset_t sa_mask; 120 unsigned long sa_flags; 121 __sigrestore_t sa_restorer; 122 }; 123 124 struct sigaction { 125 __sighandler_t sa_handler; 126 unsigned long sa_flags; 127 __sigrestore_t sa_restorer; 128 sigset_t sa_mask; /* mask last for extensibility */ 129 }; 130 131 struct k_sigaction { 132 struct sigaction sa; 133 }; 134 135 #else 136 /* Here we must cater to libcs that poke about in kernel headers. */ 137 138 struct sigaction { 139 union { 140 __sighandler_t _sa_handler; 141 void (*_sa_sigaction)(int, struct siginfo *, void *); 142 } _u; 143 sigset_t sa_mask; 144 unsigned long sa_flags; 145 void (*sa_restorer)(void); 146 }; 147 148 #define sa_handler _u._sa_handler 149 #define sa_sigaction _u._sa_sigaction 150 151 #endif /* __KERNEL__ */ 152 153 typedef struct sigaltstack { 154 void __user *ss_sp; 155 int ss_flags; 156 size_t ss_size; 157 } stack_t; 158 159 #ifdef __KERNEL__ 160 #include <asm/sigcontext.h> 161 #define ptrace_signal_deliver(regs, cookie) do { } while (0) 162 #endif 163 164 #endif 165