Commit Graph

4 Commits

Author SHA1 Message Date
Simon Glass
6c223fda1e binman: Allow device-tree entries to be compressed
At present the logic skips the blob class' handling of compression, so
this is not supported with device tree entries. Fix this.

Signed-off-by: Simon Glass <sjg@chromium.org>
2019-07-24 12:54:08 -07:00
Simon Glass
a0dcaf2049 binman: Add a return value to ProcessContentsUpdate()
At present if this function tries to update the contents such that the
size changes, it raises an error. We plan to add the ability to change
the size of entries after packing is completed, since in some cases it is
not possible to determine the size in advance.

An example of this is with a compressed device tree, where the values
of the device tree change in SetCalculatedProperties() or
ProcessEntryContents(). While the device tree itself does not change size,
since placeholders for any new properties have already bee added by
AddMissingProperties(), we cannot predict the size of the device tree
after compression. If a value changes from 0 to 0x1234 (say), then the
compressed device tree may expand.

As a first step towards supporting this, make ProcessContentsUpdate()
return a value indicating whether the content size is OK. For now this is
always True (since otherwise binman raises an error), but later patches
will adjust this.

Signed-off-by: Simon Glass <sjg@chromium.org>
2019-07-24 12:54:08 -07:00
Simon Glass
7f9e00a2a6 binman: Call ProcessUpdateContents() consistently
SetContents() should only be called to set the contents of an entry from
within the ObtainContents() call, since it has no guard against increasing
the size of the contents, thus triggering incorrect operation.

Change all such calls to use ProcessUpdateContents() instead.

Signed-off-by: Simon Glass <sjg@chromium.org>
2019-07-24 12:54:08 -07:00
Simon Glass
6ed45ba0a8 binman: Support updating all device tree files
Binman currently supports updating the main device tree with things like
the position of each entry. Extend this support to SPL and TPL as well,
since they may need (a subset of) this information.

Also adjust DTB output files to have a .out extension since this seems
clearer than having a .dtb extension with 'out' in the name somwhere.

Also add a few missing comments and update the DT setup code to use
ReadFile and WriteFile().

Signed-off-by: Simon Glass <sjg@chromium.org>
2018-09-28 11:09:01 -06:00