Per discussions with Erik, 'valloc.c' should be built on top of whichever

memory allocator you choose. Unfortunately, the 'malloc-930716' needs a
fair amount of work before it is functional. For now, changes have been
made to add the 'valloc' call and it works properly with the plain 'malloc'
allocator.

1 files changed, 61 insertions, 0 deletions

diff --git a/libc/stdlib/valloc.c b/libc/stdlib/valloc.c
new file mode 100644
index 000000000..bfb9efd2a
--- /dev/null
+++ b/libc/stdlib/valloc.c
@@ -0,0 +1,61 @@
+/* vi: set sw=4 ts=4: */
+/* Allocate memory on a page boundary.
+   Copyright (C) 1991, 1992 Free Software Foundation, Inc.
+
+This 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.
+
+This 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 this library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.
+
+   The author may be reached (Email) at the address mike@@ai.mit.edu,
+   or (US mail) as Mike Haertel c/o Free Software Foundation.  */
+
+#include <stdlib.h>
+#include "malloc.h"
+
+#ifdef	 emacs
+#include "config.h"
+#endif
+
+#ifdef	__GNU_LIBRARY__
+extern size_t __getpagesize __P ((void));
+#else
+#ifndef	USG
+extern size_t getpagesize __P ((void));
+#define	__getpagesize()	getpagesize()
+#else
+#include <sys/param.h>
+#ifdef	EXEC_PAGESIZE
+#define	__getpagesize()	EXEC_PAGESIZE
+#else /* No EXEC_PAGESIZE.  */
+#ifdef	NBPG
+#ifndef	CLSIZE
+#define	CLSIZE	1
+#endif /* No CLSIZE.  */
+#define	__getpagesize()	(NBPG * CLSIZE)
+#else /* No NBPG.  */
+#define	__getpagesize()	NBPC
+#endif /* NBPG.  */
+#endif /* EXEC_PAGESIZE.  */
+#endif /* USG.  */
+#endif
+
+static size_t pagesize;
+
+__ptr_t valloc (size_t size)
+{
+	if (pagesize == 0)
+		pagesize = __getpagesize ();
+
+	return memalign (pagesize, size);
+}