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-rw-r--r--libc/stdlib/Makefile4
-rw-r--r--libc/stdlib/posix_memalign.c42
2 files changed, 44 insertions, 2 deletions
diff --git a/libc/stdlib/Makefile b/libc/stdlib/Makefile
index 5a3ffe631..40d03521f 100644
--- a/libc/stdlib/Makefile
+++ b/libc/stdlib/Makefile
@@ -1,7 +1,7 @@
# Makefile for uClibc
#
# Copyright (C) 2000 by Lineo, inc.
-# Copyright (C) 2000,2001 Erik Andersen <andersen@uclibc.org>
+# Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org>
#
# This program 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
@@ -86,7 +86,7 @@ CSRC = abort.c getenv.c mkdtemp.c mktemp.c realpath.c mkstemp.c mkstemp64.c \
getpt.c ptsname.c grantpt.c unlockpt.c gcvt.c drand48-iter.c jrand48.c \
jrand48_r.c lrand48.c lrand48_r.c mrand48.c mrand48_r.c nrand48.c \
nrand48_r.c rand_r.c srand48.c srand48_r.c seed48.c seed48_r.c \
- valloc.c
+ valloc.c posix_memalign.c
ifeq ($(UCLIBC_HAS_FLOATS),y)
CSRC += drand48.c drand48_r.c erand48.c erand48_r.c
endif
diff --git a/libc/stdlib/posix_memalign.c b/libc/stdlib/posix_memalign.c
new file mode 100644
index 000000000..115fb8999
--- /dev/null
+++ b/libc/stdlib/posix_memalign.c
@@ -0,0 +1,42 @@
+/* vi: set sw=4 ts=4: */
+/* posix_memalign for uClibc
+ *
+ * Copyright (C) 1996-2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+ * Copyright (C) 2005 by Erik Andersen <andersen@uclibc.org>
+ *
+ * This program 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 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 Library General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <stdlib.h>
+#include <malloc.h>
+#include <sys/types.h>
+#include <errno.h>
+#include <sys/param.h>
+
+int posix_memalign(void **memptr, size_t alignment, size_t size)
+{
+ /* Make sure alignment is correct. */
+ if (alignment % sizeof(void *) != 0)
+ /* Skip these checks because the memalign() func does them for us
+ || !powerof2(alignment / sizeof(void *)) != 0
+ || alignment == 0
+ */
+ return EINVAL;
+
+ *memptr = memalign(alignment, size);
+
+ return (*memptr != NULL ? 0 : ENOMEM);
+}