$NetBSD: patch-ag,v 1.7 2009/07/10 19:58:12 abs Exp $

(unfortunately) incomplete patch to update NetBSD/m68k to be closer to working

--- config/m68k/netbsd1/md.h.orig	2009-02-05 20:12:32.000000000 +0000
+++ config/m68k/netbsd1/md.h
@@ -17,34 +17,65 @@
 #include "m68k/common.h"
 #include "m68k/threads.h"
 
+#if defined(HAVE_SIGNAL_H)
+#include <signal.h>
+#endif
+#if defined(HAVE_SYS_RESOURCE_H)
+#include <sys/resource.h>
+#endif
+#if defined(HAVE_SYS_SIGNAL_H)
+#include <sys/signal.h>
+#endif
+#if defined(HAVE_UNISTD_H)
+#include <unistd.h>
+#endif
+
 /*
  * Alignment in structure is 8 bytes packed
  */
 #define ALIGNMENT_OF_SIZE(S)    ((S) < 8 ? (S) : 8)
 
 /*
- * Stack offset.
- * This is the offset into the setjmp buffer where the stack pointer is
- * stored.
+ * Redefine stack pointer offset.
  */
-#define SP_OFFSET       2
+#undef SP_OFFSET
+#define SP_OFFSET 2
 
-/**/
-/* Extra exception handling information. */
-/**/
-#include <signal.h>
+#if defined(HAVE_SYS_UCONTEXT_H)
+#include <sys/ucontext.h>
 
-#define	SIGNAL_ARGS(sig, sc) int sig, int code, struct sigcontext *sc
+/* older netbsd's could have this macro missing, so we provide it */
+#ifndef _UC_MACHINE_SP
+#define _UC_MACHINE_SP(uc)      ((uc)->uc_mcontext.__gregs[_REG_UESP])
+#endif
+#ifndef _UC_MACHINE_PC
+#define _UC_MACHINE_PC(uc)      ((uc)->uc_mcontext.__gregs[_REG_EIP])
+#endif
+
+#define SIGCONTEXT ucontext_t
+
+#define SIGNAL_ARGS(sig, sc) int sig, siginfo_t *__si, void *sc
+#define SIGNAL_CONTEXT_POINTER(scp) SIGCONTEXT *scp
+#define SIGNAL_PC(scp) _UC_MACHINE_PC(((SIGCONTEXT *)(scp)))
+#define STACK_POINTER(scp) _UC_MACHINE_SP(((SIGCONTEXT *)(scp)))
+#define GET_SIGNAL_CONTEXT_POINTER(sc) (sc)
+
+#else
+
+#define SIGNAL_ARGS(sig, sc) int sig, int __code, struct sigcontext *sc
 #define SIGNAL_CONTEXT_POINTER(scp) struct sigcontext *scp
-#define GET_SIGNAL_CONTEXT_POINTER(scp) (scp)
-#define SIGNAL_PC(scp) ((uintp)(scp)->sc_pc)
+#define GET_SIGNAL_CONTEXT_POINTER(sc) (sc)
+#define SIGNAL_PC(scp) (scp)->sc_pc
+#define STACK_POINTER(scp) (scp)->sc_sp
 
-#include "kaffe-unix-stack.h"
+#endif
 
 #if defined(TRANSLATOR)
 #include "jit-md.h"
 #endif
 
+#include "kaffe-unix-stack.h"
+
 /*
  * sysdepCallMethod supports:
  *