X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=lib%2Fbch.c;h=c4fac77d611456b116b663b0553d4325c6861fda;hb=e731af4893f7741c66254161ad9b6f5280369895;hp=7f4ca927085775a3e7122f0a7a561c0b67256340;hpb=e390e8709149664ff96cf19384264c84573f3082;p=oweals%2Fu-boot.git

diff --git a/lib/bch.c b/lib/bch.c
index 7f4ca92708..c4fac77d61 100644
--- a/lib/bch.c
+++ b/lib/bch.c
@@ -1,19 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Generic binary BCH encoding/decoding library
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- *
- * 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 General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc., 51
- * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
  * Copyright © 2011 Parrot S.A.
  *
  * Author: Ivan Djelic <ivan.djelic@parrot.com>
@@ -65,10 +53,38 @@
  * finite fields GF(2^q). In Rapport de recherche INRIA no 2829, 1996.
  */
 
+#ifndef USE_HOSTCC
 #include <common.h>
 #include <ubi_uboot.h>
 
 #include <linux/bitops.h>
+#else
+#include <errno.h>
+#if defined(__FreeBSD__)
+#include <sys/endian.h>
+#elif defined(__APPLE__)
+#include <machine/endian.h>
+#include <libkern/OSByteOrder.h>
+#else
+#include <endian.h>
+#endif
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+#undef cpu_to_be32
+#if defined(__APPLE__)
+#define cpu_to_be32 OSSwapHostToBigInt32
+#else
+#define cpu_to_be32 htobe32
+#endif
+#define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
+#define kmalloc(size, flags)	malloc(size)
+#define kzalloc(size, flags)	calloc(1, size)
+#define kfree free
+#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
+#endif
+
 #include <asm/byteorder.h>
 #include <linux/bch.h>
 
@@ -106,6 +122,39 @@ struct gf_poly_deg1 {
 	unsigned int   c[2];
 };
 
+#ifdef USE_HOSTCC
+#if !defined(__DragonFly__) && !defined(__FreeBSD__) && !defined(__APPLE__)
+static int fls(int x)
+{
+	int r = 32;
+
+	if (!x)
+		return 0;
+	if (!(x & 0xffff0000u)) {
+		x <<= 16;
+		r -= 16;
+	}
+	if (!(x & 0xff000000u)) {
+		x <<= 8;
+		r -= 8;
+	}
+	if (!(x & 0xf0000000u)) {
+		x <<= 4;
+		r -= 4;
+	}
+	if (!(x & 0xc0000000u)) {
+		x <<= 2;
+		r -= 2;
+	}
+	if (!(x & 0x80000000u)) {
+		x <<= 1;
+		r -= 1;
+	}
+	return r;
+}
+#endif
+#endif
+
 /*
  * same as encode_bch(), but process input data one byte at a time
  */