m68k: merge the non-MMU and MMU versions of signal.h

It is trivial to merge the non-MMU and MMU versions of signal.h.
Without a single file "make headers_install" is broken for m68k
(since each of the sub-varients of signal.h are not installed).

Signed-off-by: Greg Ungerer <gerg@uclinux.org>

1 files changed, 212 insertions, 4 deletions

diff --git a/arch/m68k/include/asm/signal.h b/arch/m68k/include/asm/signal.h
index 3c19988bd93c..08788fdefde0 100644
--- a/arch/m68k/include/asm/signal.h
+++ b/arch/m68k/include/asm/signal.h
@@ -1,5 +1,213 @@
-#ifdef __uClinux__
-#include "signal_no.h"
+#ifndef _M68K_SIGNAL_H
+#define _M68K_SIGNAL_H
+
+#include <linux/types.h>
+
+/* Avoid too many header ordering problems.  */
+struct siginfo;
+
+#ifdef __KERNEL__
+/* Most things should be clean enough to redefine this at will, if care
+   is taken to make libc match.  */
+
+#define _NSIG           64
+#define _NSIG_BPW       32
+#define _NSIG_WORDS     (_NSIG / _NSIG_BPW)
+
+typedef unsigned long old_sigset_t;             /* at least 32 bits */
+
+typedef struct {
+        unsigned long sig[_NSIG_WORDS];
+} sigset_t;
+
 #else
-#include "signal_mm.h"
-#endif
+/* Here we must cater to libcs that poke about in kernel headers.  */
+
+#define NSIG            32
+typedef unsigned long sigset_t;
+
+#endif /* __KERNEL__ */
+
+#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
+#define SIGRTMAX        _NSIG
+
+/*
+ * 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
+
+/*
+ * sigaltstack controls
+ */
+#define SS_ONSTACK      1
+#define SS_DISABLE      2
+
+#define MINSIGSTKSZ     2048
+#define SIGSTKSZ        8192
+
+#include <asm-generic/signal.h>
+
+#ifdef __KERNEL__
+struct old_sigaction {
+        __sighandler_t sa_handler;
+        old_sigset_t sa_mask;
+        unsigned long sa_flags;
+        __sigrestore_t sa_restorer;
+};
+
+struct sigaction {
+        __sighandler_t sa_handler;
+        unsigned long sa_flags;
+        __sigrestore_t sa_restorer;
+        sigset_t sa_mask;               /* mask last for extensibility */
+};
+
+struct k_sigaction {
+        struct sigaction sa;
+};
+#else
+/* Here we must cater to libcs that poke about in kernel headers.  */
+
+struct sigaction {
+        union {
+          __sighandler_t _sa_handler;
+          void (*_sa_sigaction)(int, struct siginfo *, void *);
+        } _u;
+        sigset_t sa_mask;
+        unsigned long sa_flags;
+        void (*sa_restorer)(void);
+};
+
+#define sa_handler      _u._sa_handler
+#define sa_sigaction    _u._sa_sigaction
+
+#endif /* __KERNEL__ */
+
+typedef struct sigaltstack {
+        void __user *ss_sp;
+        int ss_flags;
+        size_t ss_size;
+} stack_t;
+
+#ifdef __KERNEL__
+#include <asm/sigcontext.h>
+
+#ifndef __uClinux__
+#define __HAVE_ARCH_SIG_BITOPS
+
+static inline void sigaddset(sigset_t *set, int _sig)
+{
+        asm ("bfset %0{%1,#1}"
+                : "+od" (*set)
+                : "id" ((_sig - 1) ^ 31)
+                : "cc");
+}
+
+static inline void sigdelset(sigset_t *set, int _sig)
+{
+        asm ("bfclr %0{%1,#1}"
+                : "+od" (*set)
+                : "id" ((_sig - 1) ^ 31)
+                : "cc");
+}
+
+static inline int __const_sigismember(sigset_t *set, int _sig)
+{
+        unsigned long sig = _sig - 1;
+        return 1 & (set->sig[sig / _NSIG_BPW] >> (sig % _NSIG_BPW));
+}
+
+static inline int __gen_sigismember(sigset_t *set, int _sig)
+{
+        int ret;
+        asm ("bfextu %1{%2,#1},%0"
+                : "=d" (ret)
+                : "od" (*set), "id" ((_sig-1) ^ 31)
+                : "cc");
+        return ret;
+}
+
+#define sigismember(set,sig)                    \
+        (__builtin_constant_p(sig) ?            \
+         __const_sigismember(set,sig) :         \
+         __gen_sigismember(set,sig))
+
+static inline int sigfindinword(unsigned long word)
+{
+        asm ("bfffo %1{#0,#0},%0"
+                : "=d" (word)
+                : "d" (word & -word)
+                : "cc");
+        return word ^ 31;
+}
+
+struct pt_regs;
+extern void ptrace_signal_deliver(struct pt_regs *regs, void *cookie);
+
+#else
+
+#undef __HAVE_ARCH_SIG_BITOPS
+#define ptrace_signal_deliver(regs, cookie) do { } while (0)
+
+#endif /* __uClinux__ */
+#endif /* __KERNEL__ */
+
+#endif /* _M68K_SIGNAL_H */