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https://github.com/brain-hackers/u-boot-brain
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ba64a0bbb7
It is useful to have entries which can grow automatically to fill available space. Add support for this. Signed-off-by: Simon Glass <sjg@chromium.org>
101 lines
4.0 KiB
Python
101 lines
4.0 KiB
Python
# SPDX-License-Identifier: GPL-2.0+
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# Copyright (c) 2016 Google, Inc
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# Written by Simon Glass <sjg@chromium.org>
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#
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# Entry-type module for testing purposes. Not used in real images.
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#
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from collections import OrderedDict
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from entry import Entry, EntryArg
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import fdt_util
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import tools
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class Entry__testing(Entry):
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"""A fake entry used for testing
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This entry should not be used in normal images. It is a special entry with
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strange features used for testing.
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Properties / Entry arguments
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test-str-fdt: Test string, normally in the node
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test-int-fdt: Test integer, normally in the node
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test-str-arg: Test string, normally in the entry arguments
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test-int-arg: Test integer, normally in the entry arguments
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The entry has a single 'a' byte as its contents. Operation is controlled by
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a number of properties in the node, as follows:
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Properties:
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return-invalid-entry: Return an invalid entry from GetOffsets()
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return-unknown-contents: Refuse to provide any contents (to cause a
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failure)
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bad-update-contents: Implement ProcessContents() incorrectly so as to
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cause a failure
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never-complete-process-fdt: Refund to process the FDT (to cause a
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failure)
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require-args: Require that all used args are present (generating an
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error if not)
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force-bad-datatype: Force a call to GetEntryArgsOrProps() with a bad
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data type (generating an error)
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"""
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def __init__(self, section, etype, node):
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Entry.__init__(self, section, etype, node)
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self.return_invalid_entry = fdt_util.GetBool(self._node,
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'return-invalid-entry')
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self.return_unknown_contents = fdt_util.GetBool(self._node,
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'return-unknown-contents')
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self.bad_update_contents = fdt_util.GetBool(self._node,
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'bad-update-contents')
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self.return_contents_once = fdt_util.GetBool(self._node,
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'return-contents-once')
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# Set to True when the entry is ready to process the FDT.
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self.process_fdt_ready = False
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self.never_complete_process_fdt = fdt_util.GetBool(self._node,
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'never-complete-process-fdt')
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self.require_args = fdt_util.GetBool(self._node, 'require-args')
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# This should be picked up by GetEntryArgsOrProps()
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self.test_existing_prop = 'existing'
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self.force_bad_datatype = fdt_util.GetBool(self._node,
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'force-bad-datatype')
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(self.test_str_fdt, self.test_str_arg, self.test_int_fdt,
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self.test_int_arg, existing) = self.GetEntryArgsOrProps([
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EntryArg('test-str-fdt', str),
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EntryArg('test-str-arg', str),
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EntryArg('test-int-fdt', int),
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EntryArg('test-int-arg', int),
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EntryArg('test-existing-prop', str)], self.require_args)
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if self.force_bad_datatype:
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self.GetEntryArgsOrProps([EntryArg('test-bad-datatype-arg', bool)])
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self.return_contents = True
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def ObtainContents(self):
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if self.return_unknown_contents or not self.return_contents:
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return False
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self.data = 'a'
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self.contents_size = len(self.data)
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if self.return_contents_once:
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self.return_contents = False
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return True
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def GetOffsets(self):
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if self.return_invalid_entry :
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return {'invalid-entry': [1, 2]}
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return {}
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def ProcessContents(self):
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if self.bad_update_contents:
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# Request to update the conents with something larger, to cause a
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# failure.
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self.ProcessContentsUpdate('aa')
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def ProcessFdt(self, fdt):
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"""Force reprocessing the first time"""
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ready = self.process_fdt_ready
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if not self.never_complete_process_fdt:
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self.process_fdt_ready = True
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return ready
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