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authorMarkus Wigge <mwigge@marcant.net>2010-07-27 15:37:37 +0000
committerMarkus Wigge <mwigge@marcant.net>2010-07-27 15:37:37 +0000
commit7a052dc79957fd5bc719e64b124afa0449b89171 (patch)
treed2ba5ae4ec954cd840195476307661249d19e493 /tools/firmware-utils
parent9afff8f6a643e296e0ca5aed1f74439ff15a8489 (diff)
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fix CRC32 calculation for sysupgrade
* reduce image size for CRC calculation by fs_mark size sysupgrade sometimes failed for me and I noticed that it was due to incorrect CRC values in trx-header after performing it. It seems that the fs_mark was completely included in the calculation and that it was nevertheless modified by sysupgrade while appending the jffs data. This only occurs for the first boot after sysupgrade as the flashmap driver recalculates the CRC to an even smaller area when it boots. SVN-Revision: 22396
Diffstat (limited to 'tools/firmware-utils')
-rw-r--r--tools/firmware-utils/src/trx.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/tools/firmware-utils/src/trx.c b/tools/firmware-utils/src/trx.c
index 7a64cfd..9697ad7 100644
--- a/tools/firmware-utils/src/trx.c
+++ b/tools/firmware-utils/src/trx.c
@@ -98,7 +98,7 @@ int main(int argc, char **argv)
int c, i, append = 0;
size_t n;
ssize_t n2;
- uint32_t cur_len;
+ uint32_t cur_len, fsmark=0;
unsigned long maxlen = TRX_MAX_LEN;
struct trx_header *p;
char trx_version = 1;
@@ -131,6 +131,8 @@ int main(int argc, char **argv)
cur_len += 4;
}
break;
+ case 'F':
+ fsmark = cur_len;
case 'A':
append = 1;
/* fall through */
@@ -269,10 +271,10 @@ int main(int argc, char **argv)
}
p->crc32 = crc32buf((char *) &p->flag_version,
- cur_len - offsetof(struct trx_header, flag_version));
+ (fsmark)?fsmark:cur_len - offsetof(struct trx_header, flag_version));
p->crc32 = STORE32_LE(p->crc32);
- p->len = STORE32_LE(cur_len);
+ p->len = (fsmark)?fsmark:cur_len - offsetof(struct trx_header, flag_version);
/* restore TRXv2 bin-header */
if (trx_version == 2) {