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tools/mtd-utils: update mkfs.ubifs XZ support

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SVN-Revision: 30796
This commit is contained in:
Gabor Juhos 2012-03-03 10:08:31 +00:00
parent c503f44f9c
commit 087747cd43
1 changed files with 148 additions and 30 deletions
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178
tools/mtd-utils/patches/136-mkfs.ubifs-xz-support.patch
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@ -217,51 +217,169 @@
rm -f $(BUILDDIR)/hashtable/*.o cscope.*
--- a/mkfs.ubifs/mkfs.ubifs.c
+++ b/mkfs.ubifs/mkfs.ubifs.c
@@ -178,8 +178,8 @@ static const char *helptext =
@@ -98,6 +98,9 @@ struct ubifs_info info_;
static struct ubifs_info *c = &info_;
static libubi_t ubi;
+static int force_compr_set;
+static int force_compr;
+
/* Debug levels are: 0 (none), 1 (statistics), 2 (files) ,3 (more details) */
int debug_level;
int verbose;
@@ -132,7 +135,7 @@ static struct inum_mapping **hash_table;
/* Inode creation sequence number */
static unsigned long long creat_sqnum;
-static const char *optstring = "d:r:m:o:D:h?vVe:c:g:f:Fp:k:x:X:j:R:l:j:UQq";
+static const char *optstring = "d:r:m:o:D:h?vVe:c:g:f:Fp:k:x:X:y:j:R:l:j:UQq";
static const struct option longopts[] = {
{"root", 1, NULL, 'r'},
@@ -149,6 +152,7 @@ static const struct option longopts[] =
{"reserved", 1, NULL, 'R'},
{"compr", 1, NULL, 'x'},
{"favor-percent", 1, NULL, 'X'},
+ {"force-compr", 1, NULL, 'y'},
{"fanout", 1, NULL, 'f'},
{"space-fixup", 0, NULL, 'F'},
{"keyhash", 1, NULL, 'k'},
@@ -178,11 +182,13 @@ static const char *helptext =
"-o, --output=FILE output to FILE\n"
"-j, --jrn-size=SIZE journal size\n"
"-R, --reserved=SIZE how much space should be reserved for the super-user\n"
-"-x, --compr=TYPE compression type - \"lzo\", \"favor_lzo\", \"zlib\" or\n"
-" \"none\" (default: \"lzo\")\n"
+"-x, --compr=TYPE compression type - \"lzo\", \"favor_lzo\", \"zlib\",\n"
+" \"xz\" or \"none\" (default: \"lzo\")\n"
+"-x, --compr=TYPE default compression type - \"lzo\", \"favor_lzo\",\n"
+" \"zlib\" or \"none\" (default: \"lzo\")\n"
"-X, --favor-percent may only be used with favor LZO compression and defines\n"
" how many percent better zlib should compress to make\n"
" mkfs.ubifs use zlib instead of LZO (default 20%)\n"
@@ -208,7 +208,7 @@ static const char *helptext =
"-h, --help display this help text\n\n"
"Note, SIZE is specified in bytes, but it may also be specified in Kilobytes,\n"
"Megabytes, and Gigabytes if a KiB, MiB, or GiB suffix is used.\n\n"
-"If you specify \"lzo\" or \"zlib\" compressors, mkfs.ubifs will use this compressor\n"
+"If you specify \"lzo\", \"xz\" or \"zlib\" compressors, mkfs.ubifs will use this compressor\n"
"for all data. The \"none\" disables any data compression. The \"favor_lzo\" is not\n"
"really a separate compressor. It is just a method of combining \"lzo\" and \"zlib\"\n"
"compressors. Namely, mkfs.ubifs tries to compress data with both \"lzo\" and \"zlib\"\n"
@@ -653,10 +653,13 @@ static int get_options(int argc, char**a
c->favor_lzo = 1;
else if (strcmp(optarg, "zlib") == 0)
c->default_compr = UBIFS_COMPR_ZLIB;
+ else if (strcmp(optarg, "xz") == 0)
+ c->default_compr = UBIFS_COMPR_XZ;
else if (strcmp(optarg, "none") == 0)
c->default_compr = UBIFS_COMPR_NONE;
else if (strcmp(optarg, "lzo") != 0)
+"-y, --force-compr=TYPE force to build the fs with different compression -\n"
+" \"lzo\", \"zlib\" or \"none\"\n"
"-f, --fanout=NUM fanout NUM (default: 8)\n"
"-F, --space-fixup file-system free space has to be fixed up on first mount\n"
" (requires kernel version 3.0 or greater)\n"
@@ -530,6 +536,43 @@ static int open_ubi(const char *node)
return 0;
}
+static const char *get_compr_str(int compr)
+{
+ switch (compr) {
+ case UBIFS_COMPR_LZO:
+ return "lzo";
+ case UBIFS_COMPR_ZLIB:
+ return "zlib";
+ case UBIFS_COMPR_XZ:
+ return "xz";
+ case UBIFS_COMPR_NONE:
+ return "none";
+ }
+
+ return "unknown";
+}
+
+static int get_compr_option(char *opt, int *compr_type, int *favor_lzo)
+{
+ *compr_type = UBIFS_COMPR_LZO;
+
+ if (favor_lzo)
+ *favor_lzo = 0;
+
+ if (favor_lzo && strcmp(optarg, "favor_lzo") == 0)
+ *favor_lzo = 1;
+ else if (strcmp(optarg, "zlib") == 0)
+ *compr_type = UBIFS_COMPR_ZLIB;
+ else if (strcmp(optarg, "xz") == 0)
+ *compr_type = UBIFS_COMPR_XZ;
+ else if (strcmp(optarg, "none") == 0)
+ *compr_type = UBIFS_COMPR_NONE;
+ else if (strcmp(optarg, "lzo") != 0)
+ return -1;
+
+ return 0;
+}
+
static int get_options(int argc, char**argv)
{
int opt, i;
@@ -649,14 +692,13 @@ static int get_options(int argc, char**a
return err_msg("bad key hash");
break;
case 'x':
- if (strcmp(optarg, "favor_lzo") == 0)
- c->favor_lzo = 1;
- else if (strcmp(optarg, "zlib") == 0)
- c->default_compr = UBIFS_COMPR_ZLIB;
- else if (strcmp(optarg, "none") == 0)
- c->default_compr = UBIFS_COMPR_NONE;
- else if (strcmp(optarg, "lzo") != 0)
- return err_msg("bad compressor name");
+ if (get_compr_option(optarg, &c->default_compr,
+ &c->favor_lzo))
+ return err_msg("bad compressor name '%s'",
+ optarg);
+ optarg);
+ if (c->default_compr == UBIFS_COMPR_XZ)
+ return err_msg("'%s' can't be used as default compressor",
+ optarg);
break;
case 'X':
c->favor_percent = strtol(optarg, &endp, 0);
@@ -765,6 +768,9 @@ static int get_options(int argc, char**a
case UBIFS_COMPR_ZLIB:
printf("\tcompr: zlib\n");
@@ -665,6 +707,12 @@ static int get_options(int argc, char**a
return err_msg("bad favor LZO percent '%s'",
optarg);
break;
+ case UBIFS_COMPR_XZ:
+ printf("\tcompr: xz\n");
+ case 'y':
+ if (get_compr_option(optarg, &force_compr, NULL))
+ return err_msg("bad forced compressor name '%s'",
+ optarg);
+ force_compr_set = 1;
+ break;
case UBIFS_COMPR_NONE:
printf("\tcompr: none\n");
break;
case 'j':
c->max_bud_bytes = get_bytes(optarg);
if (c->max_bud_bytes <= 0)
@@ -749,6 +797,9 @@ static int get_options(int argc, char**a
c->min_io_size = 8;
c->rp_size = add_space_overhead(c->rp_size);
+ if (force_compr_set == 0)
+ force_compr = c->default_compr;
+
if (verbose) {
printf("mkfs.ubifs\n");
printf("\troot: %s\n", root);
@@ -758,17 +809,10 @@ static int get_options(int argc, char**a
printf("\toutput: %s\n", output);
printf("\tjrn_size: %llu\n", c->max_bud_bytes);
printf("\treserved: %llu\n", c->rp_size);
- switch (c->default_compr) {
- case UBIFS_COMPR_LZO:
- printf("\tcompr: lzo\n");
- break;
- case UBIFS_COMPR_ZLIB:
- printf("\tcompr: zlib\n");
- break;
- case UBIFS_COMPR_NONE:
- printf("\tcompr: none\n");
- break;
- }
+ printf("\tcompr: %s\n", get_compr_str(c->default_compr));
+ if (forced_compr_set)
+ printf("\tforced compr: %s\n",
+ get_compr_str(force_compr));
printf("\tkeyhash: %s\n", (c->key_hash == key_r5_hash) ?
"r5" : "test");
printf("\tfanout: %d\n", c->fanout);
@@ -1353,7 +1397,7 @@ static int add_file(const char *path_nam
use_compr = UBIFS_COMPR_LZO;
else
#endif
- use_compr = c->default_compr;
+ use_compr = force_compr;
compr_type = compress_data(buf, bytes_read, &dn->data,
&out_len, use_compr);
dn->compr_type = cpu_to_le16(compr_type);
--- a/mkfs.ubifs/mkfs.ubifs.h
+++ b/mkfs.ubifs/mkfs.ubifs.h
@@ -77,6 +77,9 @@