Upgraded to mh-e version 6.1.1.

[bpt/emacs.git] / src / mem-limits.h

diff --git a/src/mem-limits.h b/src/mem-limits.h
index 1878e69..6783577 100644 (file)
--- a/src/mem-limits.h
+++ b/src/mem-limits.h
@@ -1,5 +1,5 @@
 /* Includes for memory limit warnings.
-   Copyright (C) 1990, 1993 Free Software Foundation, Inc.
+   Copyright (C) 1990, 1993, 1994, 1995, 1996 Free Software Foundation, Inc.
 
 This file is part of GNU Emacs.
 
@@ -15,20 +15,29 @@ GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
 along with GNU Emacs; see the file COPYING.  If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
 
 #ifdef MSDOS
 #include <dpmi.h>
+extern int etext;
 #endif
 
+/* Some systems need this before <sys/resource.h>.  */
+#include <sys/types.h>
+
 #ifdef _LIBC
 
 #include <sys/resource.h>
 #define BSD4_2                 /* Tell code below to use getrlimit.  */
 
-#else
+/* Old Linux startup code won't define __data_start.  */
+extern int etext, __data_start; weak_extern (__data_start)
+#define start_of_data()        (&__data_start ?: &etext)
+
+#else /* not _LIBC */
 
-#if defined (__osf__) && (defined (__mips) || defined (mips))
+#if defined (__osf__) && (defined (__mips) || defined (mips) || defined(__alpha))
 #include <sys/time.h>
 #include <sys/resource.h>
 #endif
@@ -40,7 +49,9 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
 #ifndef BSD4_2
 #ifndef USG
 #ifndef MSDOS
+#ifndef WINDOWSNT
 #include <sys/vlimit.h>
+#endif /* not WINDOWSNT */
 #endif /* not MSDOS */
 #endif /* not USG */
 #else /* if BSD4_2 */
@@ -48,17 +59,11 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
 #include <sys/resource.h>
 #endif /* BSD4_2 */
 
-#endif /* _LIBC */
-
 #ifdef emacs
 /* The important properties of this type are that 1) it's a pointer, and
    2) arithmetic on it should work as if the size of the object pointed
    to has a size of 1.  */
-#ifdef __STDC__
-typedef void *POINTER;
-#else
-typedef char *POINTER;
-#endif
+typedef POINTER_TYPE *POINTER;
 
 typedef unsigned long SIZE;
 
@@ -70,30 +75,45 @@ typedef unsigned long SIZE;
 extern POINTER start_of_data ();
 #ifdef DATA_SEG_BITS
 #define EXCEEDS_LISP_PTR(ptr) \
-  (((unsigned int) (ptr) & ~DATA_SEG_BITS) >> VALBITS)
+  (((EMACS_UINT) (ptr) & ~DATA_SEG_BITS) >> VALBITS)
 #else
-#define EXCEEDS_LISP_PTR(ptr) ((unsigned int) (ptr) >> VALBITS)
+#define EXCEEDS_LISP_PTR(ptr) ((EMACS_UINT) (ptr) >> VALBITS)
 #endif
 
-#ifdef BSD
+#ifdef DATA_START
+#define start_of_data() ((char *)DATA_START)
+#endif
+
+#ifdef BSD_SYSTEM
 #ifndef DATA_SEG_BITS
+#ifndef DATA_START
 extern char etext;
 #define start_of_data() &etext
 #endif
 #endif
+#endif
 
-#else  /* Not emacs */ 
+#else  /* not emacs */
 extern char etext;
 #define start_of_data() &etext
-#endif /* Not emacs */
+#endif /* not emacs */
+
+#endif /* not _LIBC */
 
-  
 
 /* start of data space; can be changed by calling malloc_init */
 static POINTER data_space_start;
 
 /* Number of bytes of writable memory we can expect to be able to get */
-static unsigned int lim_data;
+static unsigned long lim_data;
+
+#ifdef NO_LIM_DATA
+static void
+get_lim_data ()
+{
+  lim_data = -1;
+}
+#else /* not NO_LIM_DATA */
 
 #ifdef USG
 
@@ -105,7 +125,7 @@ get_lim_data ()
   lim_data = -1;
 
   /* Use the ulimit call, if we seem to have it.  */
-#if !defined (ULIMIT_BREAK_VALUE) || defined (LINUX)
+#if !defined (ULIMIT_BREAK_VALUE) || defined (GNU_LINUX)
   lim_data = ulimit (3, 0);
 #endif
 
@@ -119,6 +139,16 @@ get_lim_data ()
 }
 
 #else /* not USG */
+#ifdef WINDOWSNT
+
+static void
+get_lim_data ()
+{
+  extern unsigned long reserved_heap_size;
+  lim_data = reserved_heap_size;
+}
+
+#else
 #if !defined (BSD4_2) && !defined (__osf__)
 
 #ifdef MSDOS
@@ -153,4 +183,6 @@ get_lim_data ()
 #endif
 }
 #endif /* BSD4_2 */
+#endif /* not WINDOWSNT */
 #endif /* not USG */
+#endif /* not NO_LIM_DATA */