From: Paul Eggert <eggert@cs.ucla.edu>
Date: Sat, 30 Jan 2016 22:20:57 +0000 (-0800)
Subject: Shrink static heap a bit
X-Git-Tag: emacs-26.0.90~2776
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=2ee29634fe25352fb320bc0e04e0cae3eca5ad97;p=emacs.git

Shrink static heap a bit

* src/sheap.h: Include lisp.h, for Lisp_Object.
(STATIC_HEAP_SIZE): Now an enum constant, not a macro.
Make it 2 MiB * sizeof (Lisp_Object), which is a bit more
conservative than the old value.
(Bug#22086)
---

diff --git a/src/sheap.h b/src/sheap.h
index 4af3cf482b1..db059d287c4 100644
--- a/src/sheap.h
+++ b/src/sheap.h
@@ -18,12 +18,12 @@ You should have received a copy of the GNU General Public License
 along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include <stddef.h>
+#include "lisp.h"
 
-#ifdef ENABLE_CHECKING
-# define STATIC_HEAP_SIZE (28 * 1024 * 1024)
-#else
-# define STATIC_HEAP_SIZE (19 * 1024 * 1024)
-#endif
+/* Size of the static heap.  Guess a value that is probably too large,
+   by up to a factor of two or so.  Typically the unused part is not
+   paged in and so does not cost much.  */
+enum { STATIC_HEAP_SIZE = sizeof (Lisp_Object) << 21 };
 
 extern char bss_sbrk_buffer[STATIC_HEAP_SIZE];
 extern char *max_bss_sbrk_ptr;