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@@ -1,13 +1,266 @@
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+#ifndef _ASM_X86_SIGNAL_H
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+#define _ASM_X86_SIGNAL_H
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+
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+#ifndef __ASSEMBLY__
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+#include <linux/types.h>
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+#include <linux/time.h>
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+#include <linux/compiler.h>
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+
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+/* Avoid too many header ordering problems. */
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+struct siginfo;
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+
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#ifdef __KERNEL__
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-# ifdef CONFIG_X86_32
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-# include "signal_32.h"
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-# else
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-# include "signal_64.h"
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-# endif
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+#include <linux/linkage.h>
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+
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+/* Most things should be clean enough to redefine this at will, if care
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+ is taken to make libc match. */
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+
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+#define _NSIG 64
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+
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+#ifdef __i386__
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+# define _NSIG_BPW 32
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#else
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-# ifdef __i386__
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-# include "signal_32.h"
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-# else
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-# include "signal_64.h"
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-# endif
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+# define _NSIG_BPW 64
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+#endif
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+
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+#define _NSIG_WORDS (_NSIG / _NSIG_BPW)
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+
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+typedef unsigned long old_sigset_t; /* at least 32 bits */
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+
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+typedef struct {
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+ unsigned long sig[_NSIG_WORDS];
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+} sigset_t;
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+
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+#else
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+/* Here we must cater to libcs that poke about in kernel headers. */
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+
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+#define NSIG 32
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+typedef unsigned long sigset_t;
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+
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+#endif /* __KERNEL__ */
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+#endif /* __ASSEMBLY__ */
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+
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+#define SIGHUP 1
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+#define SIGINT 2
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+#define SIGQUIT 3
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+#define SIGILL 4
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+#define SIGTRAP 5
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+#define SIGABRT 6
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+#define SIGIOT 6
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+#define SIGBUS 7
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+#define SIGFPE 8
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+#define SIGKILL 9
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+#define SIGUSR1 10
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+#define SIGSEGV 11
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+#define SIGUSR2 12
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+#define SIGPIPE 13
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+#define SIGALRM 14
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+#define SIGTERM 15
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+#define SIGSTKFLT 16
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+#define SIGCHLD 17
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+#define SIGCONT 18
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+#define SIGSTOP 19
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+#define SIGTSTP 20
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+#define SIGTTIN 21
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+#define SIGTTOU 22
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+#define SIGURG 23
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+#define SIGXCPU 24
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+#define SIGXFSZ 25
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+#define SIGVTALRM 26
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+#define SIGPROF 27
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+#define SIGWINCH 28
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+#define SIGIO 29
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+#define SIGPOLL SIGIO
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+/*
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+#define SIGLOST 29
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+*/
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+#define SIGPWR 30
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+#define SIGSYS 31
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+#define SIGUNUSED 31
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+
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+/* These should not be considered constants from userland. */
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+#define SIGRTMIN 32
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+#define SIGRTMAX _NSIG
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+
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+/*
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+ * SA_FLAGS values:
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+ *
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+ * SA_ONSTACK indicates that a registered stack_t will be used.
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+ * SA_RESTART flag to get restarting signals (which were the default long ago)
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+ * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
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+ * SA_RESETHAND clears the handler when the signal is delivered.
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+ * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
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+ * SA_NODEFER prevents the current signal from being masked in the handler.
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+ *
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+ * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
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+ * Unix names RESETHAND and NODEFER respectively.
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+ */
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+#define SA_NOCLDSTOP 0x00000001u
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+#define SA_NOCLDWAIT 0x00000002u
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+#define SA_SIGINFO 0x00000004u
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+#define SA_ONSTACK 0x08000000u
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+#define SA_RESTART 0x10000000u
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+#define SA_NODEFER 0x40000000u
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+#define SA_RESETHAND 0x80000000u
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+
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+#define SA_NOMASK SA_NODEFER
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+#define SA_ONESHOT SA_RESETHAND
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+
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+#define SA_RESTORER 0x04000000
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+
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+/*
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+ * sigaltstack controls
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+ */
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+#define SS_ONSTACK 1
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+#define SS_DISABLE 2
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+
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+#define MINSIGSTKSZ 2048
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+#define SIGSTKSZ 8192
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+
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+#include <asm-generic/signal.h>
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+
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+#ifndef __ASSEMBLY__
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+
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+#ifdef __i386__
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+# ifdef __KERNEL__
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+struct old_sigaction {
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+ __sighandler_t sa_handler;
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+ old_sigset_t sa_mask;
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+ unsigned long sa_flags;
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+ __sigrestore_t sa_restorer;
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+};
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+
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+struct sigaction {
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+ __sighandler_t sa_handler;
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+ unsigned long sa_flags;
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+ __sigrestore_t sa_restorer;
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+ sigset_t sa_mask; /* mask last for extensibility */
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+};
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+
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+struct k_sigaction {
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+ struct sigaction sa;
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+};
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+# else /* __KERNEL__ */
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+/* Here we must cater to libcs that poke about in kernel headers. */
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+
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+struct sigaction {
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+ union {
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+ __sighandler_t _sa_handler;
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+ void (*_sa_sigaction)(int, struct siginfo *, void *);
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+ } _u;
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+ sigset_t sa_mask;
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+ unsigned long sa_flags;
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+ void (*sa_restorer)(void);
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+};
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+
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+#define sa_handler _u._sa_handler
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+#define sa_sigaction _u._sa_sigaction
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+
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+# endif /* ! __KERNEL__ */
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+#else /* __i386__ */
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+
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+struct sigaction {
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+ __sighandler_t sa_handler;
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+ unsigned long sa_flags;
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+ __sigrestore_t sa_restorer;
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+ sigset_t sa_mask; /* mask last for extensibility */
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+};
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+
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+struct k_sigaction {
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+ struct sigaction sa;
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+};
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+
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+#endif /* !__i386__ */
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+
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+typedef struct sigaltstack {
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+ void __user *ss_sp;
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+ int ss_flags;
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+ size_t ss_size;
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+} stack_t;
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+
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+#ifdef __KERNEL__
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+#include <asm/sigcontext.h>
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+
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+#ifdef __386__
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+
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+#define __HAVE_ARCH_SIG_BITOPS
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+
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+#define sigaddset(set,sig) \
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+ (__builtin_constantp(sig) ? \
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+ __const_sigaddset((set),(sig)) : \
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+ __gen_sigaddset((set),(sig)))
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+
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+static __inline__ void __gen_sigaddset(sigset_t *set, int _sig)
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+{
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+ __asm__("btsl %1,%0" : "+m"(*set) : "Ir"(_sig - 1) : "cc");
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+}
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+
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+static __inline__ void __const_sigaddset(sigset_t *set, int _sig)
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+{
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+ unsigned long sig = _sig - 1;
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+ set->sig[sig / _NSIG_BPW] |= 1 << (sig % _NSIG_BPW);
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+}
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+
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+#define sigdelset(set,sig) \
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+ (__builtin_constant_p(sig) ? \
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+ __const_sigdelset((set),(sig)) : \
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+ __gen_sigdelset((set),(sig)))
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+
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+
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+static __inline__ void __gen_sigdelset(sigset_t *set, int _sig)
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+{
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+ __asm__("btrl %1,%0" : "+m"(*set) : "Ir"(_sig - 1) : "cc");
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+}
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+
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+static __inline__ void __const_sigdelset(sigset_t *set, int _sig)
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+{
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+ unsigned long sig = _sig - 1;
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+ set->sig[sig / _NSIG_BPW] &= ~(1 << (sig % _NSIG_BPW));
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+}
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+
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+static __inline__ int __const_sigismember(sigset_t *set, int _sig)
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+{
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+ unsigned long sig = _sig - 1;
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+ return 1 & (set->sig[sig / _NSIG_BPW] >> (sig % _NSIG_BPW));
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+}
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+
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+static __inline__ int __gen_sigismember(sigset_t *set, int _sig)
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+{
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+ int ret;
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+ __asm__("btl %2,%1\n\tsbbl %0,%0"
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+ : "=r"(ret) : "m"(*set), "Ir"(_sig-1) : "cc");
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+ return ret;
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+}
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+
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+#define sigismember(set,sig) \
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+ (__builtin_constant_p(sig) ? \
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+ __const_sigismember((set),(sig)) : \
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+ __gen_sigismember((set),(sig)))
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+
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+static __inline__ int sigfindinword(unsigned long word)
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+{
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+ __asm__("bsfl %1,%0" : "=r"(word) : "rm"(word) : "cc");
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+ return word;
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+}
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+
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+struct pt_regs;
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+
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+#define ptrace_signal_deliver(regs, cookie) \
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+ do { \
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+ if (current->ptrace & PT_DTRACE) { \
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+ current->ptrace &= ~PT_DTRACE; \
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+ (regs)->eflags &= ~TF_MASK; \
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+ } \
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+ } while (0)
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+
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+#else /* __i386__ */
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+
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+#undef __HAVE_ARCH_SIG_BITOPS
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+
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+#define ptrace_signal_deliver(regs, cookie) do { } while (0)
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+
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+#endif /* !__i386__ */
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+#endif /* __KERNEL__ */
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+#endif /* __ASSEMBLY__ */
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+
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#endif
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Thomas Gleixner