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Index: head/include/malloc_np.h
===================================================================
--- head/include/malloc_np.h
+++ head/include/malloc_np.h
@@ -122,6 +122,9 @@
void __dallocx(void *ptr, int flags);
void __sdallocx(void *ptr, size_t size, int flags);
size_t __nallocx(size_t size, int flags);
+
+void *memalign(size_t, size_t) __malloc_like __alloc_align(1)
+ __alloc_size(2);
__END_DECLS
#undef __MyBool
Index: head/lib/libc/gen/Makefile.inc
===================================================================
--- head/lib/libc/gen/Makefile.inc
+++ head/lib/libc/gen/Makefile.inc
@@ -98,6 +98,7 @@
libc_dlopen.c \
lockf.c \
lrand48.c \
+ memalign.c \
mrand48.c \
nftw.c \
nftw-compat11.c \
Index: head/lib/libc/gen/Symbol.map
===================================================================
--- head/lib/libc/gen/Symbol.map
+++ head/lib/libc/gen/Symbol.map
@@ -423,6 +423,7 @@
};
FBSD_1.6 {
+ memalign;
sigandset;
sigisemptyset;
sigorset;
Index: head/lib/libc/gen/memalign.c
===================================================================
--- head/lib/libc/gen/memalign.c
+++ head/lib/libc/gen/memalign.c
@@ -0,0 +1,40 @@
+/*-
+ * Copyright (c) 2020 The FreeBSD Foundation
+ * All rights reserved.
+ *
+ * This software was developed by Konstantin Belousov
+ * under sponsorship from the FreeBSD Foundation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <stdlib.h>
+
+void *
+memalign(size_t align, size_t size)
+{
+ return (aligned_alloc(align, roundup(size, align)));
+}

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