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

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

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

arch/m68k/include/asm/siginfo.h

@@ -1,5 +1,97 @@
-#ifdef __uClinux__
-#include "siginfo_no.h"
+#ifndef _M68K_SIGINFO_H
+#define _M68K_SIGINFO_H
+
+#ifndef __uClinux__
+#define HAVE_ARCH_SIGINFO_T
+#define HAVE_ARCH_COPY_SIGINFO
+#endif
+
+#include <asm-generic/siginfo.h>
+
+#ifndef __uClinux__
+
+typedef struct siginfo {
+	int si_signo;
+	int si_errno;
+	int si_code;
+
+	union {
+		int _pad[SI_PAD_SIZE];
+
+		/* kill() */
+		struct {
+			__kernel_pid_t _pid;	/* sender's pid */
+			__kernel_uid_t _uid;	/* backwards compatibility */
+			__kernel_uid32_t _uid32; /* sender's uid */
+		} _kill;
+
+		/* POSIX.1b timers */
+		struct {
+			timer_t _tid;		/* timer id */
+			int _overrun;		/* overrun count */
+			char _pad[sizeof( __ARCH_SI_UID_T) - sizeof(int)];
+			sigval_t _sigval;	/* same as below */
+			int _sys_private;       /* not to be passed to user */
+		} _timer;
+
+		/* POSIX.1b signals */
+		struct {
+			__kernel_pid_t _pid;	/* sender's pid */
+			__kernel_uid_t _uid;	/* backwards compatibility */
+			sigval_t _sigval;
+			__kernel_uid32_t _uid32; /* sender's uid */
+		} _rt;
+
+		/* SIGCHLD */
+		struct {
+			__kernel_pid_t _pid;	/* which child */
+			__kernel_uid_t _uid;	/* backwards compatibility */
+			int _status;		/* exit code */
+			clock_t _utime;
+			clock_t _stime;
+			__kernel_uid32_t _uid32; /* sender's uid */
+		} _sigchld;
+
+		/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
+		struct {
+			void *_addr; /* faulting insn/memory ref. */
+		} _sigfault;
+
+		/* SIGPOLL */
+		struct {
+			int _band;	/* POLL_IN, POLL_OUT, POLL_MSG */
+			int _fd;
+		} _sigpoll;
+	} _sifields;
+} siginfo_t;
+
+#define UID16_SIGINFO_COMPAT_NEEDED
+
+/*
+ * How these fields are to be accessed.
+ */
+#undef si_uid
+#ifdef __KERNEL__
+#define si_uid		_sifields._kill._uid32
+#define si_uid16	_sifields._kill._uid
 #else
-#include "siginfo_mm.h"
+#define si_uid		_sifields._kill._uid
+#endif
+
+#ifdef __KERNEL__
+
+#include <linux/string.h>
+
+static inline void copy_siginfo(struct siginfo *to, struct siginfo *from)
+{
+	if (from->si_code < 0)
+		memcpy(to, from, sizeof(*to));
+	else
+		/* _sigchld is currently the largest know union member */
+		memcpy(to, from, 3*sizeof(int) + sizeof(from->_sifields._sigchld));
+}
+
+#endif /* __KERNEL__ */
+#endif /* !__uClinux__ */
+
 #endif