New memory malloc malloc library, based on GNU malloc.

1 files changed, 39 insertions, 0 deletions

diff --git a/mmalloc/mvalloc.c b/mmalloc/mvalloc.c
new file mode 100644
index 0000000..683bad0
--- /dev/null
+++ b/mmalloc/mvalloc.c
@@ -0,0 +1,39 @@
+/* Allocate memory on a page boundary.
+   Copyright (C) 1991 Free Software Foundation, Inc.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include "mmalloc.h"
+
+/* Cache the pagesize for the current host machine.  Note that if the host
+   does not readily provide a getpagesize() function, we need to emulate it
+   elsewhere, not clutter up this file with lots of kluges to try to figure
+   it out. */
+
+static size_t pagesize;
+
+PTR
+mvalloc (md, size)
+  PTR md;
+  size_t size;
+{
+  if (pagesize == 0)
+    {
+      pagesize = getpagesize ();
+    }
+
+  return (mmemalign (md, pagesize, size));
+}