* config/mips/xm-makeva.h: New file implements va_list alignment

restrictions for mips hosts.

gdb/config/mips/xm-makeva.h

@@ -0,0 +1,35 @@
+/* Copyright (C) 1993 Free Software Foundation, Inc.
+
+This file is part of GDB.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+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.  */
+
+/* Mips hosts need aligned va_list arguments.  */
+
+#define MAKEVA_ARG(list, argaddr, argsize) \
+  { \
+    int rounded_argsize; \
+    if (argsize > 8) \
+      /* Currently this never happens; printf_command only uses argsize */ \
+      /* of sizeof (int), sizeof (double), or sizeof (long long).  */ \
+      error ("MAKEVA_ARG not fully written for mips"); \
+    if (argsize <= 4) \
+      rounded_argsize = 4; \
+    else if (argsize <= 8) \
+      rounded_argsize = 8; \
+    list->argindex = (list->argindex + rounded_argsize - 1) & -rounded_argsize; \
+    memcpy (&list->aligner.arg_bytes[list->argindex], argaddr, argsize); \
+    list->argindex += argsize; \
+  }