diff options
Diffstat (limited to 'util/cbfstool')
| -rw-r--r-- | util/cbfstool/cbfstool.c | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/util/cbfstool/cbfstool.c b/util/cbfstool/cbfstool.c index 2d8483ba0b..7a714275f7 100644 --- a/util/cbfstool/cbfstool.c +++ b/util/cbfstool/cbfstool.c @@ -91,6 +91,7 @@ static struct param { .hash = VB2_HASH_INVALID, .headeroffset = ~0, .region_name = SECTION_NAME_PRIMARY_CBFS, + .u64val = -1, }; static bool region_is_flashmap(const char *region) @@ -985,8 +986,18 @@ static int cbfs_write(void) buffer_delete(&new_content); return 1; } - WARN("Written area will abut %s of target region: any unused space will keep its current contents\n", - param.fill_partial_upward ? "bottom" : "top"); + if (param.u64val == (uint64_t)-1) { + WARN("Written area will abut %s of target region: any unused space will keep its current contents\n", + param.fill_partial_upward ? "bottom" : "top"); + } else if (param.u64val > 0xff) { + ERROR("given fill value (%x) is larger than a byte\n", (unsigned)(param.u64val & 0xff)); + buffer_delete(&new_content); + return 1; + } else { + memset(buffer_get(param.image_region), + param.u64val & 0xff, + buffer_size(param.image_region)); + } if (param.fill_partial_downward) offset = param.image_region->size - new_content.size; } @@ -1094,7 +1105,7 @@ static const struct command commands[] = { {"read", "r:f:vh?", cbfs_read, true, false}, {"remove", "H:r:n:vh?", cbfs_remove, true, true}, {"update-fit", "H:r:n:x:vh?", cbfs_update_fit, true, true}, - {"write", "r:f:Fudvh?", cbfs_write, true, true}, + {"write", "r:f:i:Fudvh?", cbfs_write, true, true}, }; static struct option long_options[] = { @@ -1240,7 +1251,7 @@ static void usage(char *name) "Show the contents of the ROM\n" " extract [-r image,regions] [-m ARCH] -n NAME -f FILE " "Extracts a raw payload from ROM\n" - " write [-F] -r image,regions -f file [-u | -d] " + " write [-F] -r image,regions -f file [-u | -d] [-i int] " "Write file into same-size [or larger] raw region\n" " read [-r fmap-region] -f file " "Extract raw region contents into binary file\n" |