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binman: Move image-processing code into a function

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The Binman() function is very long. Split out the image code to make it
more manageable.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2019-07-20 12:23:24 -06:00
parent 1000096b06
commit b88e81c622
1 changed files with 57 additions and 46 deletions
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103
tools/binman/control.py
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@ -169,6 +169,62 @@ def ExtractEntries(image_fname, output_fname, outdir, entry_paths,
return einfos
def ProcessImage(image, update_fdt, write_map):
"""Perform all steps for this image, including checking and # writing it.
This means that errors found with a later image will be reported after
earlier images are already completed and written, but that does not seem
important.
Args:
image: Image to process
update_fdt: True to update the FDT wth entry offsets, etc.
write_map: True to write a map file
"""
image.GetEntryContents()
image.GetEntryOffsets()
# We need to pack the entries to figure out where everything
# should be placed. This sets the offset/size of each entry.
# However, after packing we call ProcessEntryContents() which
# may result in an entry changing size. In that case we need to
# do another pass. Since the device tree often contains the
# final offset/size information we try to make space for this in
# AddMissingProperties() above. However, if the device is
# compressed we cannot know this compressed size in advance,
# since changing an offset from 0x100 to 0x104 (for example) can
# alter the compressed size of the device tree. So we need a
# third pass for this.
passes = 3
for pack_pass in range(passes):
try:
image.PackEntries()
image.CheckSize()
image.CheckEntries()
except Exception as e:
if write_map:
fname = image.WriteMap()
print("Wrote map file '%s' to show errors" % fname)
raise
image.SetImagePos()
if update_fdt:
image.SetCalculatedProperties()
for dtb_item in state.GetFdts():
dtb_item.Sync()
sizes_ok = image.ProcessEntryContents()
if sizes_ok:
break
image.ResetForPack()
if not sizes_ok:
image.Raise('Entries expanded after packing (tried %s passes)' %
passes)
image.WriteSymbols()
image.BuildImage()
if write_map:
image.WriteMap()
def Binman(args):
"""The main control code for binman
@ -279,52 +335,7 @@ def Binman(args):
dtb_item.Flush()
for image in images.values():
# Perform all steps for this image, including checking and
# writing it. This means that errors found with a later
# image will be reported after earlier images are already
# completed and written, but that does not seem important.
image.GetEntryContents()
image.GetEntryOffsets()
# We need to pack the entries to figure out where everything
# should be placed. This sets the offset/size of each entry.
# However, after packing we call ProcessEntryContents() which
# may result in an entry changing size. In that case we need to
# do another pass. Since the device tree often contains the
# final offset/size information we try to make space for this in
# AddMissingProperties() above. However, if the device is
# compressed we cannot know this compressed size in advance,
# since changing an offset from 0x100 to 0x104 (for example) can
# alter the compressed size of the device tree. So we need a
# third pass for this.
passes = 3
for pack_pass in range(passes):
try:
image.PackEntries()
image.CheckSize()
image.CheckEntries()
except Exception as e:
if args.map:
fname = image.WriteMap()
print("Wrote map file '%s' to show errors" % fname)
raise
image.SetImagePos()
if args.update_fdt:
image.SetCalculatedProperties()
for dtb_item in state.GetFdts():
dtb_item.Sync()
sizes_ok = image.ProcessEntryContents()
if sizes_ok:
break
image.ResetForPack()
if not sizes_ok:
image.Raise('Entries expanded after packing (tried %s passes)' %
passes)
image.WriteSymbols()
image.BuildImage()
if args.map:
image.WriteMap()
ProcessImage(image, args.update_fdt, args.map)
# Write the updated FDTs to our output files
for dtb_item in state.GetFdts():