* config/mips/tm-mips.h (GDB_TARGET_IS_MIPS64): If not already

	defined, define as 0.
	(FIX_CALL_DUMMY): Rewrite to remove presumption that host and
	target are similar.
	* config/mips/tm-idt.h (TARGET_BYTE_ORDER_SELECTABLE): Define.
	* config/mips/tm-idtl.h (TARGET_BYTE_ORDER_SELECTABLE): Define.
	* config/mips/tm-idt64.h (TARGET_BYTE_ORDER_SELECTABLE): Define.
	(BREAKPOINT): Remove definition.
	* config/mips/tm-idtl64.h (TARGET_BYTE_ORDER_SELECTABLE): Define.
	(BREAKPOINT): Remove definition.
	* config/mips/tm-mips64.h (GDB_TARGET_IS_MIPS64): Define with a
	value of 1, rather than without a value.
	* config/mips/tm-bigmips64.h (GDB_TARGET_IS_MIPS64): Likewise.

7 files changed, 59 insertions, 52 deletions

diff --git a/gdb/config/mips/tm-bigmips64.h b/gdb/config/mips/tm-bigmips64.h
index a9161d8..1f45b18 100644
--- a/gdb/config/mips/tm-bigmips64.h
+++ b/gdb/config/mips/tm-bigmips64.h
@@ -18,7 +18,7 @@ You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
 
-#define GDB_TARGET_IS_MIPS64
+#define GDB_TARGET_IS_MIPS64 1
 
 /* force LONGEST to be long long in gdb */
 #define FORCE_LONG_LONG
diff --git a/gdb/config/mips/tm-idt.h b/gdb/config/mips/tm-idt.h
index bb4697d..e53e5e7 100644
--- a/gdb/config/mips/tm-idt.h
+++ b/gdb/config/mips/tm-idt.h
@@ -16,4 +16,6 @@ You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
 
+#define TARGET_BYTE_ORDER_SELECTABLE
+
 #include "mips/tm-bigmips.h"
diff --git a/gdb/config/mips/tm-idt64.h b/gdb/config/mips/tm-idt64.h
index 4f60ae4..51f0cd8 100644
--- a/gdb/config/mips/tm-idt64.h
+++ b/gdb/config/mips/tm-idt64.h
@@ -16,10 +16,6 @@ You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
 
-#include "mips/tm-bigmips64.h"
-
-/* The IDT board uses an unusual breakpoint value, and sometimes gets
-   confused when it sees the usual MIPS breakpoint instruction.  */
+#define TARGET_BYTE_ORDER_SELECTABLE
 
-#undef BREAKPOINT
-#define BREAKPOINT {0, 0, 0x0a, 0x0d}
+#include "mips/tm-bigmips64.h"
diff --git a/gdb/config/mips/tm-idtl.h b/gdb/config/mips/tm-idtl.h
index 3410bca..d00bb04 100644
--- a/gdb/config/mips/tm-idtl.h
+++ b/gdb/config/mips/tm-idtl.h
@@ -16,4 +16,6 @@ You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
 
+#define TARGET_BYTE_ORDER_SELECTABLE
+
 #include "mips/tm-mips.h"
diff --git a/gdb/config/mips/tm-idtl64.h b/gdb/config/mips/tm-idtl64.h
index dbe4eb5..73aa621 100644
--- a/gdb/config/mips/tm-idtl64.h
+++ b/gdb/config/mips/tm-idtl64.h
@@ -16,10 +16,6 @@ You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
 
-#include "mips/tm-mips64.h"
-
-/* The IDT board uses an unusual breakpoint value, and sometimes gets
-   confused when it sees the usual MIPS breakpoint instruction.  */
+#define TARGET_BYTE_ORDER_SELECTABLE
 
-#undef BREAKPOINT
-#define BREAKPOINT {0x0d, 0x0a, 0, 0}
+#include "mips/tm-mips64.h"
diff --git a/gdb/config/mips/tm-mips.h b/gdb/config/mips/tm-mips.h
index 3deb7b6..87fbfe6 100644
--- a/gdb/config/mips/tm-mips.h
+++ b/gdb/config/mips/tm-mips.h
@@ -27,6 +27,10 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
 #define TARGET_BYTE_ORDER LITTLE_ENDIAN
 #endif
 
+#if !defined (GDB_TARGET_IS_MIPS64)
+#define GDB_TARGET_IS_MIPS64 0
+#endif
+
 /* Floating point is IEEE compliant */
 #define IEEE_FLOAT
 
@@ -344,50 +348,57 @@ extern int in_sigtramp PARAMS ((CORE_ADDR, char *));
 /* Insert the specified number of args and function address
    into a call sequence of the above form stored at DUMMYNAME.  */
 
-#if TARGET_BYTE_ORDER == BIG_ENDIAN && ! defined (GDB_TARGET_IS_MIPS64)
 /* For big endian mips machines we need to switch the order of the
    words with a floating-point value (it was already coerced to a double
    by mips_push_arguments).  */
 #define FIX_CALL_DUMMY(dummyname, start_sp, fun, nargs, args, rettype, gcc_p) \
-  do {									\
-    ((int*)(dummyname))[11] |= ((unsigned long)(fun)) >> 16;		\
-    ((int*)(dummyname))[12] |= (unsigned short)(fun);			\
-    if (! mips_fpu) {							\
-      ((int *) (dummyname))[3] = 0; ((int *) (dummyname))[4] = 0;	\
-      ((int *) (dummyname))[5] = 0; ((int *) (dummyname))[6] = 0;	\
-    } else {								\
-      if (nargs > 0 &&							\
-	  TYPE_CODE(VALUE_TYPE(args[0])) == TYPE_CODE_FLT) {		\
-	if (TYPE_LENGTH(VALUE_TYPE(args[0])) > 8)			\
-	  error ("Can't pass floating point value of more than 8 bytes to a function"); \
-	((int *) (dummyname))[3] = MK_OP(OP_LDFPR,SP_REGNUM,12,4);	\
-	((int *) (dummyname))[4] = MK_OP(OP_LDFPR,SP_REGNUM,13,0);	\
-      }									\
-      if (nargs > 1 &&							\
-	  TYPE_CODE(VALUE_TYPE(args[1])) == TYPE_CODE_FLT) {		\
-	if (TYPE_LENGTH(VALUE_TYPE(args[1])) > 8)			\
-	  error ("Can't pass floating point value of more than 8 bytes to a function"); \
-	((int *) (dummyname))[5] = MK_OP(OP_LDFPR,SP_REGNUM,14,12);	\
-	((int *) (dummyname))[6] = MK_OP(OP_LDFPR,SP_REGNUM,15,8);	\
-      }									\
+  do									\
+    {									\
+      store_unsigned_integer						\
+	(dummyname + 11 * 4, 4,						\
+	 (extract_unsigned_integer (dummyname + 11 * 4, 4)		\
+	  | (((fun) >> 16) & 0xffff)));					\
+      store_unsigned_integer						\
+	(dummyname + 12 * 4, 4,						\
+	 (extract_unsigned_integer (dummyname + 12 * 4, 4)		\
+	  | ((fun) & 0xffff)));						\
+      if (! mips_fpu)							\
+	{								\
+	  store_unsigned_integer (dummyname + 3 * 4, 4,			\
+				  (unsigned LONGEST) 0);		\
+	  store_unsigned_integer (dummyname + 4 * 4, 4,			\
+				  (unsigned LONGEST) 0);		\
+	  store_unsigned_integer (dummyname + 5 * 4, 4,			\
+				  (unsigned LONGEST) 0);		\
+	  store_unsigned_integer (dummyname + 6 * 4, 4,			\
+				  (unsigned LONGEST) 0);		\
+	}								\
+      else if (TARGET_BYTE_ORDER == BIG_ENDIAN				\
+	       && ! GDB_TARGET_IS_MIPS64)				\
+	{								\
+	  if (nargs > 0							\
+	      && TYPE_CODE (VALUE_TYPE (args[0])) == TYPE_CODE_FLT)	\
+	    {								\
+	      if (TYPE_LENGTH (VALUE_TYPE (args[0])) > 8)		\
+		error ("floating point value too large to pass to function");\
+	      store_unsigned_integer					\
+		(dummyname + 3 * 4, 4, MK_OP (OP_LDFPR, SP_REGNUM, 12, 4));\
+	      store_unsigned_integer					\
+		(dummyname + 4 * 4, 4, MK_OP (OP_LDFPR, SP_REGNUM, 13, 0));\
+	    }								\
+	  if (nargs > 1							\
+	      && TYPE_CODE (VALUE_TYPE (args[1])) == TYPE_CODE_FLT)	\
+	    {								\
+	      if (TYPE_LENGTH (VALUE_TYPE (args[1])) > 8)		\
+		error ("floating point value too large to pass to function");\
+	      store_unsigned_integer					\
+		(dummyname + 5 * 4, 4, MK_OP (OP_LDFPR, SP_REGNUM, 14, 12));\
+	      store_unsigned_integer					\
+		(dummyname + 6 * 4, 4, MK_OP (OP_LDFPR, SP_REGNUM, 15, 8));\
+	    }								\
+	}								\
     }									\
-  } while (0)
-#else
-#define FIX_CALL_DUMMY(dummyname, start_sp, fun, nargs,	args, rettype, gcc_p)\
-  do \
-    { \
-      ((int*)(dummyname))[11] |= ((unsigned long)(fun)) >> 16; \
-      ((int*)(dummyname))[12] |= (unsigned short)(fun); \
-      if (! mips_fpu) \
-	{ \
-	  ((int *) (dummyname))[3] = 0; \
-	  ((int *) (dummyname))[4] = 0; \
-	  ((int *) (dummyname))[5] = 0; \
-	  ((int *) (dummyname))[6] = 0; \
-	} \
-    } \
   while (0)
-#endif
 
 /* There's a mess in stack frame creation.  See comments in blockframe.c
    near reference to INIT_FRAME_PC_FIRST.  */
diff --git a/gdb/config/mips/tm-mips64.h b/gdb/config/mips/tm-mips64.h
index 87afc21..10384f6 100644
--- a/gdb/config/mips/tm-mips64.h
+++ b/gdb/config/mips/tm-mips64.h
@@ -18,7 +18,7 @@ You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
 
-#define GDB_TARGET_IS_MIPS64
+#define GDB_TARGET_IS_MIPS64 1
 
 /* force LONGEST to be long long in gdb */
 #define FORCE_LONG_LONG