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# Helper/utility functions to work with the IMAGE_BOOT_FILES variable and its
# expected behvaior with regards to the contents of the DEPLOY_DIR_IMAGE.
#
# The use of these functions assume that the deploy directory is populated with
# any dependent files/etc. Such that the recipe using these functions depends
# on the recipe that provides the files being used/queried.
def boot_files_split_expand(d):
# IMAGE_BOOT_FILES has extra renaming info in the format '<source>;<target>'
for f in (d.getVar("IMAGE_BOOT_FILES") or "").split(" "):
parts = f.split(";", 1)
sources = [parts[0]]
if "*" in parts[0]:
# has glob part
import glob
deployroot = d.getVar("DEPLOY_DIR_IMAGE")
sources = []
for i in glob.glob(os.path.join(deployroot, parts[0])):
sources.append(os.path.basename(i))
# for all sources, yield an entry
for s in sources:
if len(parts) == 2:
yield s, parts[1]
yield s, s
def boot_files_bitstream(d):
expectedfiles = [("bitstream", True)]
expectedexts = [(".bit", True), (".bin", False)]
# search for bitstream paths, use the renamed file. First matching is used
for source, target in boot_files_split_expand(d):
# skip boot.bin and u-boot.bin, it is not a bitstream
skip = ["boot.bin", "u-boot.bin"]
if source in skip or target in skip:
continue
for e, t in expectedfiles:
if source == e or target == e:
return target, t
for e, t in expectedexts:
if source.endswith(e) or target.endswith(e):
return target, t
return "", False
def boot_files_dtb_filepath(d):
dtbs = (d.getVar("IMAGE_BOOT_FILES") or "").split(" ")
for source, target in boot_files_split_expand(d):
if target.endswith(".dtb"):
return target
return ""
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