diff options
Diffstat (limited to 'util/cbfstool/cbfstool.c')
| -rw-r--r-- | util/cbfstool/cbfstool.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/util/cbfstool/cbfstool.c b/util/cbfstool/cbfstool.c index 5e7d904151..3263a91c05 100644 --- a/util/cbfstool/cbfstool.c +++ b/util/cbfstool/cbfstool.c @@ -1121,6 +1121,23 @@ static int cbfs_expand(void) return cbfs_expand_to_region(param.image_region); } +static int cbfs_truncate(void) +{ + struct buffer src_buf; + + /* Obtain the source region. */ + if (!partitioned_file_read_region(&src_buf, param.image_file, + param.region_name)) { + ERROR("Region not found in image: %s\n", param.source_region); + return 1; + } + + uint32_t size; + int result = cbfs_truncate_space(param.image_region, &size); + printf("0x%x\n", size); + return result; +} + static const struct command commands[] = { {"add", "H:r:f:n:t:c:b:a:yvA:gh?", cbfs_add, true, true}, {"add-flat-binary", "H:r:f:n:l:e:c:b:vA:gh?", cbfs_add_flat_binary, @@ -1142,6 +1159,7 @@ static const struct command commands[] = { {"update-fit", "H:r:n:x:vh?", cbfs_update_fit, true, true}, {"write", "r:f:i:Fudvh?", cbfs_write, true, true}, {"expand", "r:h?", cbfs_expand, true, true}, + {"truncate", "r:h?", cbfs_truncate, true, true}, }; static struct option long_options[] = { @@ -1291,6 +1309,8 @@ static void usage(char *name) "Write file into same-size [or larger] raw region\n" " read [-r fmap-region] -f file " "Extract raw region contents into binary file\n" + " truncate [-r fmap-region] " + "Truncate CBFS and print new size on stdout\n" " expand [-r fmap-region] " "Expand CBFS to span entire region\n" " update-fit [-r image,regions] -n MICROCODE_BLOB_NAME \\\n" |