--- a/mkfs.ubifs/compr.c +++ b/mkfs.ubifs/compr.c @@ -24,7 +24,9 @@ #include #include #include +#ifndef WITHOUT_LZO #include +#endif #include #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)