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|
--- a/mkfs.ubifs/compr.c
+++ b/mkfs.ubifs/compr.c
@@ -24,7 +24,6 @@
#include <stdio.h>
#include <stdint.h>
#include <string.h>
-#include <lzo/lzo1x.h>
#include <linux/types.h>
#define crc32 __zlib_crc32
@@ -34,7 +33,6 @@
#include "compr.h"
#include "mkfs.ubifs.h"
-static void *lzo_mem;
static unsigned long long errcnt = 0;
static struct ubifs_info *c = &info_;
@@ -85,6 +83,25 @@ static int zlib_deflate(void *in_buf, si
return 0;
}
+#ifndef WITHOUT_LZO
+#include <lzo/lzo1x.h>
+
+static void *lzo_mem;
+
+static int lzo_init(void)
+{
+ lzo_mem = malloc(LZO1X_999_MEM_COMPRESS);
+ if (!lzo_mem)
+ return -1;
+
+ return 0;
+}
+
+static void lzo_fini(void)
+{
+ free(lzo_mem);
+}
+
static int lzo_compress(void *in_buf, size_t in_len, void *out_buf,
size_t *out_len)
{
@@ -102,6 +119,12 @@ static int lzo_compress(void *in_buf, si
return 0;
}
+#else
+static inline int lzo_compress(void *in_buf, size_t in_len, void *out_buf,
+ size_t *out_len) { return -1; }
+static inline int lzo_init(void) { return 0; }
+static inline void lzo_fini(void) { }
+#endif
static int no_compress(void *in_buf, size_t in_len, void *out_buf,
size_t *out_len)
@@ -122,7 +145,6 @@ static int favor_lzo_compress(void *in_b
lzo_len = zlib_len = *out_len;
lzo_ret = lzo_compress(in_buf, in_len, out_buf, &lzo_len);
zlib_ret = zlib_deflate(in_buf, in_len, zlib_buf, &zlib_len);
-
if (lzo_ret && zlib_ret)
/* Both compressors failed */
return -1;
@@ -197,23 +219,28 @@ int compress_data(void *in_buf, size_t i
int init_compression(void)
{
- lzo_mem = malloc(LZO1X_999_MEM_COMPRESS);
- if (!lzo_mem)
- return -1;
+ int ret;
+
+ ret = lzo_init();
+ if (ret)
+ goto err;
zlib_buf = malloc(UBIFS_BLOCK_SIZE * WORST_COMPR_FACTOR);
- if (!zlib_buf) {
- free(lzo_mem);
- return -1;
- }
+ if (!zlib_buf)
+ goto err_lzo;
return 0;
+
+err_lzo:
+ lzo_fini();
+err:
+ return ret;
}
void destroy_compression(void)
{
free(zlib_buf);
- free(lzo_mem);
+ lzo_fini();
if (errcnt)
fprintf(stderr, "%llu compression errors occurred\n", errcnt);
}
--- a/Makefile
+++ b/Makefile
@@ -108,7 +108,13 @@ $(call _mkdep,lib/,libmtd.a)
obj-mkfs.ubifs = crc16.o lpt.o compr.o devtable.o \
hashtable/hashtable.o hashtable/hashtable_itr.o
LDFLAGS_mkfs.ubifs = $(ZLIBLDFLAGS) $(LZOLDFLAGS) $(UUIDLDFLAGS)
-LDLIBS_mkfs.ubifs = -lz -llzo2 -lm -luuid
+ifeq ($(WITHOUT_LZO), 1)
+ CPPFLAGS += -DWITHOUT_LZO
+else
+ LZOLDLIBS = -llzo2
+endif
+
+LDLIBS_mkfs.ubifs = -lz $(LZOLDLIBS) -lm -luuid
$(call mkdep,mkfs.ubifs/,mkfs.ubifs,,ubi-utils/libubi.a)
#
|
