summaryrefslogtreecommitdiff
path: root/include/asm-generic/signal.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-generic/signal.h')
-rw-r--r--include/asm-generic/signal.h137
1 files changed, 120 insertions, 17 deletions
diff --git a/include/asm-generic/signal.h b/include/asm-generic/signal.h
index dae1d8720076..555c0aee8a47 100644
--- a/include/asm-generic/signal.h
+++ b/include/asm-generic/signal.h
@@ -1,28 +1,131 @@
#ifndef __ASM_GENERIC_SIGNAL_H
#define __ASM_GENERIC_SIGNAL_H
-#include <linux/compiler.h>
+#include <linux/types.h>
-#ifndef SIG_BLOCK
-#define SIG_BLOCK 0 /* for blocking signals */
-#endif
-#ifndef SIG_UNBLOCK
-#define SIG_UNBLOCK 1 /* for unblocking signals */
-#endif
-#ifndef SIG_SETMASK
-#define SIG_SETMASK 2 /* for setting the signal mask */
+#define _NSIG 64
+#define _NSIG_BPW __BITS_PER_LONG
+#define _NSIG_WORDS (_NSIG / _NSIG_BPW)
+
+#define SIGHUP 1
+#define SIGINT 2
+#define SIGQUIT 3
+#define SIGILL 4
+#define SIGTRAP 5
+#define SIGABRT 6
+#define SIGIOT 6
+#define SIGBUS 7
+#define SIGFPE 8
+#define SIGKILL 9
+#define SIGUSR1 10
+#define SIGSEGV 11
+#define SIGUSR2 12
+#define SIGPIPE 13
+#define SIGALRM 14
+#define SIGTERM 15
+#define SIGSTKFLT 16
+#define SIGCHLD 17
+#define SIGCONT 18
+#define SIGSTOP 19
+#define SIGTSTP 20
+#define SIGTTIN 21
+#define SIGTTOU 22
+#define SIGURG 23
+#define SIGXCPU 24
+#define SIGXFSZ 25
+#define SIGVTALRM 26
+#define SIGPROF 27
+#define SIGWINCH 28
+#define SIGIO 29
+#define SIGPOLL SIGIO
+/*
+#define SIGLOST 29
+*/
+#define SIGPWR 30
+#define SIGSYS 31
+#define SIGUNUSED 31
+
+/* These should not be considered constants from userland. */
+#define SIGRTMIN 32
+#ifndef SIGRTMAX
+#define SIGRTMAX _NSIG
#endif
+/*
+ * SA_FLAGS values:
+ *
+ * SA_ONSTACK indicates that a registered stack_t will be used.
+ * SA_RESTART flag to get restarting signals (which were the default long ago)
+ * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
+ * SA_RESETHAND clears the handler when the signal is delivered.
+ * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
+ * SA_NODEFER prevents the current signal from being masked in the handler.
+ *
+ * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
+ * Unix names RESETHAND and NODEFER respectively.
+ */
+#define SA_NOCLDSTOP 0x00000001
+#define SA_NOCLDWAIT 0x00000002
+#define SA_SIGINFO 0x00000004
+#define SA_ONSTACK 0x08000000
+#define SA_RESTART 0x10000000
+#define SA_NODEFER 0x40000000
+#define SA_RESETHAND 0x80000000
+
+#define SA_NOMASK SA_NODEFER
+#define SA_ONESHOT SA_RESETHAND
+
+/*
+ * New architectures should not define the obsolete
+ * SA_RESTORER 0x04000000
+ */
+
+/*
+ * sigaltstack controls
+ */
+#define SS_ONSTACK 1
+#define SS_DISABLE 2
+
+#define MINSIGSTKSZ 2048
+#define SIGSTKSZ 8192
+
#ifndef __ASSEMBLY__
-typedef void __signalfn_t(int);
-typedef __signalfn_t __user *__sighandler_t;
+typedef struct {
+ unsigned long sig[_NSIG_WORDS];
+} sigset_t;
+
+/* not actually used, but required for linux/syscalls.h */
+typedef unsigned long old_sigset_t;
-typedef void __restorefn_t(void);
-typedef __restorefn_t __user *__sigrestore_t;
+#include <asm-generic/signal-defs.h>
-#define SIG_DFL ((__force __sighandler_t)0) /* default signal handling */
-#define SIG_IGN ((__force __sighandler_t)1) /* ignore signal */
-#define SIG_ERR ((__force __sighandler_t)-1) /* error return from signal */
+struct sigaction {
+ __sighandler_t sa_handler;
+ unsigned long sa_flags;
+#ifdef SA_RESTORER
+ __sigrestore_t sa_restorer;
#endif
+ sigset_t sa_mask; /* mask last for extensibility */
+};
+
+struct k_sigaction {
+ struct sigaction sa;
+};
+
+typedef struct sigaltstack {
+ void __user *ss_sp;
+ int ss_flags;
+ size_t ss_size;
+} stack_t;
+
+#ifdef __KERNEL__
+
+#include <asm/sigcontext.h>
+#undef __HAVE_ARCH_SIG_BITOPS
+
+#define ptrace_signal_deliver(regs, cookie) do { } while (0)
+
+#endif /* __KERNEL__ */
+#endif /* __ASSEMBLY__ */
-#endif /* __ASM_GENERIC_SIGNAL_H */
+#endif /* _ASM_GENERIC_SIGNAL_H */