u-boot.git/tools/binman/state.py, branch v2021.01

patman: Move to absolute imports

2020-04-26T20:25:21Z

At present patman sets the python path on startup so that it can access the libraries it needs. If we convert to use absolute imports this is not necessary. Move patman to use absolute imports. This requires changes in tools which use the patman libraries (which is most of them). Signed-off-by: Simon Glass

binman: Move to absolute imports

2020-04-26T20:25:21Z

At present binman sets the python path on startup so that it can access the libraries it needs. If we convert to use absolute imports this is not necessary. Move binman to use absolute imports. This enables removable of the path adjusting in Entry also. Signed-off-by: Simon Glass

binman: Update state when replacing device-tree entries

2019-07-29T15:38:06Z

Since the state module holds references to all the device trees used by binman, it must be updated when the device trees are updated. Add support for this. Signed-off-by: Simon Glass

binman: Support shrinking a entry after packing

2019-07-29T15:38:06Z

Sometimes an entry may shrink after it has already been packed. In that case we must repack the items. Of course it is always possible to just leave the entry at its original size and waste space at the end. This is what binman does by default, since there is the possibility of the entry changing size every time binman calculates its contents, thus causing a loop. Signed-off-by: Simon Glass

binman: Allow updating entries that change size

2019-07-29T15:38:06Z

So far we don't allow entries to change size when repacking. But this is not very useful since it is common for entries to change size after an updated binary is built, etc. Add support for this, respecting the original offset/size/alignment constraints of the image layout. For this to work the original image must have been created with the 'allow-repack' property. This does not support entry types with sub-entries such as files and CBFS, but it does support sections. Signed-off-by: Simon Glass

binman: Add info to allow safely repacking an image later

2019-07-29T15:38:06Z

At present it is not possible to discover the contraints to repacking an image (e.g. maximum section size) since this information is not preserved from the original image description. Add new 'orig-offset' and 'orig-size' properties to hold this. Add them to the main device tree in the image. Signed-off-by: Simon Glass

binman: Support updating entries in an existing image

2019-07-29T15:38:06Z

While it is useful and efficient to build images in a single pass from a unified description, it is sometimes desirable to update the image later. Add support for replace an existing file with one of the same size. This avoids needing to repack the file. Support for more advanced updates will come in future patches. Signed-off-by: Simon Glass

binman: Store the entry in output_fdt_files

2019-07-29T15:38:05Z

In some cases we want to access the Entry object for a particular device tree. This allows us to read its contents or update it. Add this information to output_fdt_files and provide a function to read it. Also rename output_fdt_files since its name is no-longer descriptive. Signed-off-by: Simon Glass

binman: Allow state functions to fail to return data

2019-07-29T15:38:05Z

At present these state functions raise an exception if they cannot find what is requested. But in some cases the information is optional (e.g. an fdtmap in a coming patch) so it is better to return gracefully. Update these two functions to return None when the data cannot be found. Signed-off-by: Simon Glass

binman: Drop state.fdt_set as this is not needed

2019-07-29T15:38:05Z

We can iterate through the output files so don't need this global anymore. Remove it. Signed-off-by: Simon Glass