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path: root/tools/mtd-utils/patches/135-mkubifs_optional_lzo.patch
blob: 86c6489a63c15b5f17fa47c443f81a86af4c09a9 (plain)
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--- a/mkfs.ubifs/compr.c
+++ b/mkfs.ubifs/compr.c
@@ -24,7 +24,9 @@
 #include <stdio.h>
 #include <stdint.h>
 #include <string.h>
+#ifndef WITHOUT_LZO
 #include <lzo/lzo1x.h>
+#endif
 #include <linux/types.h>
 
 #define crc32 __zlib_crc32
@@ -35,7 +37,9 @@
 #include "ubifs-media.h"
 #include "mkfs.ubifs.h"
 
+#ifndef WITHOUT_LZO
 static void *lzo_mem;
+#endif
 static unsigned long long errcnt = 0;
 static struct ubifs_info *c = &info_;
 
@@ -86,6 +90,7 @@ static int zlib_deflate(void *in_buf, si
 	return 0;
 }
 
+#ifndef WITHOUT_LZO
 static int lzo_compress(void *in_buf, size_t in_len, void *out_buf,
 			size_t *out_len)
 {
@@ -103,6 +108,7 @@ static int lzo_compress(void *in_buf, si
 
 	return 0;
 }
+#endif
 
 static int no_compress(void *in_buf, size_t in_len, void *out_buf,
 		       size_t *out_len)
@@ -120,14 +126,20 @@ static int favor_lzo_compress(void *in_b
 	int lzo_ret, zlib_ret;
 	size_t lzo_len, zlib_len;
 
+#ifndef WITHOUT_LZO
 	lzo_len = zlib_len = *out_len;
 	lzo_ret = lzo_compress(in_buf, in_len, out_buf, &lzo_len);
+#endif
 	zlib_ret = zlib_deflate(in_buf, in_len, zlib_buf, &zlib_len);
-
+#ifndef WITHOUT_LZO
 	if (lzo_ret && zlib_ret)
+#else
+	if (zlib_ret)
+#endif
 		/* Both compressors failed */
 		return -1;
 
+#ifndef WITHOUT_LZO
 	if (!lzo_ret && !zlib_ret) {
 		double percent;
 
@@ -152,6 +164,7 @@ select_lzo:
 	*out_len = lzo_len;
 	*type = MKFS_UBIFS_COMPR_LZO;
 	return 0;
+#endif
 
 select_zlib:
 	*out_len = zlib_len;
@@ -174,9 +187,11 @@ int compress_data(void *in_buf, size_t i
 		ret = favor_lzo_compress(in_buf, in_len, out_buf, out_len, &type);
 	else {
 		switch (type) {
+#ifndef WITHOUT_LZO
 		case MKFS_UBIFS_COMPR_LZO:
 			ret = lzo_compress(in_buf, in_len, out_buf, out_len);
 			break;
+#endif
 		case MKFS_UBIFS_COMPR_ZLIB:
 			ret = zlib_deflate(in_buf, in_len, out_buf, out_len);
 			break;
@@ -198,13 +213,17 @@ int compress_data(void *in_buf, size_t i
 
 int init_compression(void)
 {
+#ifndef WITHOUT_LZO
 	lzo_mem = malloc(LZO1X_999_MEM_COMPRESS);
 	if (!lzo_mem)
 		return -1;
+#endif
 
 	zlib_buf = malloc(UBIFS_BLOCK_SIZE * WORST_COMPR_FACTOR);
 	if (!zlib_buf) {
+#ifndef WITHOUT_LZO
 		free(lzo_mem);
+#endif
 		return -1;
 	}
 
@@ -214,7 +233,9 @@ int init_compression(void)
 void destroy_compression(void)
 {
 	free(zlib_buf);
+#ifndef WITHOUT_LZO
 	free(lzo_mem);
+#endif
 	if (errcnt)
 		fprintf(stderr, "%llu compression errors occurred\n", errcnt);
 }
--- a/mkfs.ubifs/Makefile
+++ b/mkfs.ubifs/Makefile
@@ -6,7 +6,13 @@ ALL_SOURCES=*.[ch] hashtable/*.[ch]
 
 TARGETS = mkfs.ubifs
 
-LDLIBS_mkfs.ubifs = -lz -llzo2 -lm -luuid -L$(BUILDDIR)/../ubi-utils/ -lubi
+ifeq ($(WITHOUT_LZO), 1)
+  CPPFLAGS += -DWITHOUT_LZO
+else
+  LZOLDLIBS = -llzo2
+endif
+
+LDLIBS_mkfs.ubifs = -lz $(LZOLDLIBS) -lm -luuid -L$(BUILDDIR)/../ubi-utils/ -lubi
 LDLIBS_mkfs.ubifs += -L$(BUILDDIR)/../lib -lmtd
 LDLIBS_mkfs.ubifs += $(ZLIBLDFLAGS) $(LZOLDFLAGS)