* configure.in (*-*-sunos*): Use trailing * to match all

[deliverable/binutils-gdb.git] / gdb / xm-sun3os4.h

diff --git a/gdb/xm-sun3os4.h b/gdb/xm-sun3os4.h
index b9ffc8d8aed94ff249d9f6ee34b068f089b2c089..cf23a4b0a5f4cd5efb870aa067466e639308f198 100644 (file)
--- a/gdb/xm-sun3os4.h
+++ b/gdb/xm-sun3os4.h
@@ -3,26 +3,46 @@
 
 This file is part of GDB.
 
-GDB is free software; you can redistribute it and/or modify
+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 1, or (at your option)
-any later version.
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
 
-GDB is distributed in the hope that it will be useful,
+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 GDB; see the file COPYING.  If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+along with this program; if not, write to the Free Software
+Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
 
 #include "xm-sun3.h"
 #define FPU
 
-/* There is a bug which can cause alloca to fail to allocate large
-   areas of memory one time in every 4096 (we think).  */
-/* chase@orc.olivetti.com says that 4 megabyte alloca's consistently fail,
-   even though the stack limit (SET_STACK_LIMIT_HUGE) has been set
-   to 250 megabytes.  */
+/* Large alloca's fail because the attempt to increase the stack limit in
+   main() fails because shared libraries are allocated just below the initial
+   stack limit.  The SunOS kernel will not allow the stack to grow into
+   the area occupied by the shared libraries.  Sun knows about this bug
+   but has no obvious fix for it.  */
 #define BROKEN_LARGE_ALLOCA
+
+/* SunOS 4.x has memory mapped files.  */
+
+#define HAVE_MMAP
+
+/* If you expect to use the mmalloc package to obtain mapped symbol files,
+   for now you have to specify some parameters that determine how gdb places
+   the mappings in it's address space.  See the comments in map_to_address()
+   for details.  This is expected to only be a short term solution.  Yes it
+   is a kludge.
+   FIXME:  Make this more automatic. */
+
+#define MMAP_BASE_ADDRESS      0xE0000000      /* First mapping here */
+#define MMAP_INCREMENT         0x01000000      /* Increment to next mapping */
+
+/* Prevent type conflicts between yacc malloc decls and defs.h */
+#define MALLOC_INCOMPATIBLE
+extern char *malloc();
+extern char *realloc();
+extern void free();