It is useful to be able to access the size of an image in SPL, with
something like:
binman_sym_declare(unsigned long, u_boot_any, size);
...
ulong u_boot_size = binman_sym(ulong, u_boot_any, size);
Add support for this and update the tests.
Signed-off-by: Simon Glass <sjg@chromium.org>
Entries which include a section and need to obtain its contents call
GetData(), as with any other entry. But the current implementation of this
method in entry_Section requires the size of the section to be known. If
it is unknown, an error is produced, since size is None:
TypeError: can't multiply sequence by non-int of type 'NoneType'
There is no need to know the size in advance since the code can be
adjusted to build up the section piece by piece, instead of patching each
entry into an existing bytearray.
Update the code to handle this and add a test.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present we only support symbols inside binaries which are at the top
level of an image. This restrictions seems unreasonable since more complex
images may want to group binaries within different sections.
Relax the restriction, adding a new _SetupTplElf() helper function.
Also fix a typo in the comment for testTpl().
Signed-off-by: Simon Glass <sjg@chromium.org>
At present this entry does not work correctly when a FIT image is used as
the input. It updates the FIT instead of the output image. The test passed
because the FIT image happened to have the right data already.
Fix it.
Signed-off-by: Simon Glass <sjg@chromium.org>
A Firmware Image Table (FIT) is a data structure defined by Intel which
contains information about various things needed by the SoC, such as
microcode.
Add support for this entry as well as the pointer to it. The contents of
FIT are fixed at present. Future work is needed to support adding
microcode, etc.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present these two sections of code are linked together into a single
2KB chunk in a single file. Some Intel SoCs like to have a FIT (Firmware
Interface Table) in the ROM and the pointer for this needs to go at
0xffffffc0 which is in the middle of these two sections.
Make use of the new 'reset' entry and change the existing 16-bit entry to
include just the 16-bit data.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present binman has a single entry type for the 16-bit code code needed
to start up an x86 processor. This entry is intended to include both the
reset vector itself as well as the code to move to 32-bit mode.
However this is not very flexible since in some cases other data needs to
be included at the top of the SPI flash, in between these two pieces. For
example Intel requires that a FIT (Firmware Image Table) pointer be placed
0x40 bytes before the end of the ROM.
To deal with this, add a new reset entry for just the reset vector. A
subsequent change will adjust the existing 'start16' entry.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present the Intel IFWI entry uses 'replace' without the 'ifwi-' prefix.
This is a fairly generic name which might conflict with the main Entry
base class at some point, if more features are added. Add a prefix.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present if libfdt is not available binman can't do anything much.
Improve the situation a little.
Ideally there should be a test to cover this, but I'm not quite sure how
to fake this.
Signed-off-by: Simon Glass <sjg@chromium.org>
(fixed up missing ReadChildData() enty test)
The image-header currently sets it offset assuming that skip-at-start is
zero. This does not work on x86 where offsets end at 4GB. Add in this
value so that the offset is correct.
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Bin Meng <bmeng.cn@gmail.com>
Some x86 sections have special offsets which currently result in empty
data being returned from the 'extract' command. Fix this by taking account
of the skip-at-start property.
Add a little more debugging while we are here.
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Bin Meng <bmeng.cn@gmail.com>
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 <sjg@chromium.org>
At present binman cannot replace data within a CBFS since it does not
allow rewriting of the files in that CBFS. Implement this by using the
new WriteData() method to handle the case.
Add a header to compressed data so that the amount of compressed data can
be determined without reference to the size of the containing entry. This
allows the entry to be larger that the contents, without causing errors in
decompression. This is necessary to cope with a compressed device tree
being updated in such a way that it shrinks after the entry size is
already set (an obscure case). It is not used with CBFS since it has its
own metadata for this. Increase the number of passes allowed to resolve
the position of entries, to handle this case.
Add a test for this new logic.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present this method assumes that the parent section does not need
to recalculate its position or adjust any metadata it may contain. But
when the entry changes size this may not be true. Also if the parent
section is more than just a container (e.g. it is a CBFS) then the
section may need to regenerate its output.
Add a new WriteChildData() method to sections and call this from the
WriteData() method, to handle this situation.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present we simply extract the data directly from entries using the
image_pos information. This happens to work on current entry types, but
cannot work if the entry type encodes the data in some way. Update the
ReadData() method to provide the data by calling a new ReadChildData()
method in the parent. This allows the entry_Section class, or possibly
any other container class, to return the correct data in all cases.
Signed-off-by: Simon Glass <sjg@chromium.org>
The Intel descriptor must always appear at the start of an (x86) image,
so it is supposed to position itself there always. However there is no
explicit test for this. Add one and fix a bug introduced by the recent
change to adjust Entry to read the node in a separate call.
Signed-off-by: Simon Glass <sjg@chromium.org>
The FMAP is not intended to show the files inside a CBFS. The FMAP can be
used to locate the CBFS itself, but then the CBFS must be read to find out
what is in it.
Update the FMAP to work this way and add some debugging while we are here.
Signed-off-by: Simon Glass <sjg@chromium.org>
Sometimes entries shrink after packing. As a start towards supporting
this, update the _testing entry to handle the test case.
Signed-off-by: Simon Glass <sjg@chromium.org>
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 <sjg@chromium.org>
The positioning does not currently work correctly if at the end of an
image with no fixed size. Also if the header is in the middle of an image
it can cause a gap in the image since the header position is normally at
the image end, so entries after it are placed after the end of the image.
Fix these problems and add more tests to cover these cases.
Signed-off-by: Simon Glass <sjg@chromium.org>
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 <sjg@chromium.org>
When updating an existing image where the size of all entries remains the
same, we should not need to regenerate the fdtmap. Update the entry to
return the same fdtmap as was read from the image.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present we have an 'image' property in the entry for this purpose, but
this is not necessary and seems error-prone in the presence of
inheritance. Add a function instead. The Entry_section class overrides
this with a special version, since top-level sections are in fact images,
since Image inherits Entry_section.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present the Entry constructor sets up the object and then immediately
reads its device-tree node to obtain its properties.
This breaks a convention that constructors should not do any processing.
A consequence is that we must pass all arguments to the constructor and
cannot have the node-reading proceed in a different way unless we pass
flags to that constructor. We already have a 'test' flag in a few cases,
and now need to control whether the 'orig_offset' and 'orig_size'
properties are set or not.
Adjust the code to require a separate call to ReadNode() after
construction. The Image class remains as it was.
Signed-off-by: Simon Glass <sjg@chromium.org>
Since binman supports multiple images it is useful to know which one
created the image that has been read. Then it is possible to look up that
name in the 'master' device tree (containing the description of all
images).
Add a property for this.
Signed-off-by: Simon Glass <sjg@chromium.org>
When modifying an image it is convenient to load the data from the file
into each entry so that it can be reprocessed. Add a new LoadData() method
to handle this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Use the new logging feature to log information about progress with
packing. This is useful to see how binman is figuring things out.
Also update elf.py to use the same feature.
Signed-off-by: Simon Glass <sjg@chromium.org>
It makes more sense to use entry type as the key for this dictionary,
since the filename can in principle be anything. Make this change and also
rename fdt_files and add a comment to explain it better.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present the FDTs are keyed by their default filename (not their actual
filename). It seems easier to key by the entry type, since this is always
the same for each FDT type.
To do this, add a new Entry method called GetFdtEtype(). This is necessary
since some entry types contain a device tree which are not the simple
three entry types 'u-boot-dtb', 'u-boot-spl' or 'u-boot-tpl'.
The code already returns a dict for GetFdt(). Update the value of that
dict to include the filename so that existing code can work.
Signed-off-by: Simon Glass <sjg@chromium.org>
This function name conflicts with Fdt.Node.GetFdt() which has a different
purpose. Rename it to avoid confusion.
The new name suggests it is indexed by entry type rather than filename.
This will be tidied up in a future commit.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present this function returns a set of device-tree filenames. It has no
way of returning the actual device-tree object. Change it to a dictionary
so that we can add this feature in a future patch.
Also drop fdt_set since it is no-longer used.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present we check the filename to see if an entry holds a device-tree
file. It is easier to use the base class designed for this purpose.
Move this method implementation into Entry_blob_dtb and update the default
one to return an empty set.
Signed-off-by: Simon Glass <sjg@chromium.org>
CBFS is a bit like a section but with a custom format. Provide the list of
entries and the compression type to binman so that it can extract the data
from the CBFS, just like any other part of the image.
Signed-off-by: Simon Glass <sjg@chromium.org>
It is useful to be able to extract entry contents from an image to see
what is inside. Add a simple function to read the contents of an entry,
decompressing it by default.
Signed-off-by: Simon Glass <sjg@chromium.org>
When support for sections (and thus hierarchical images) was added to
binman, the decision was made to create a new Section class which could
be used by both Image and an Entry_section class. The decision between
using inheritance and composition was tricky to make, but in the end it
was decided that Image was different enough from Entry that it made sense
to put the implementation of sections in an entirely separate class. It
also has the advantage that core Image code does have to rely on an entry
class in the etype directory.
This work was mostly completed in commit:
8f1da50ccc "binman: Refactor much of the image code into 'section'
As a result of this, the Section class has its own version of things like
offset and size and these must be kept in sync with the parent
Entry_section class in some cases.
In the last year it has become apparent that the cost of keeping things in
sync is larger than expected, since more and more code wants to access
these properties.
An alternative approach, previously considered and rejected, now seems
better.
Adjust Image to be a subclass of Entry_section. Move the code from Section
(in bsection.py) to Entry_section and delete Section. Update all tests
accordingly.
This requires substantial changes to Image. Overall the changes reduce
code size by about 240 lines. While much of that is just boilerplate from
Section, there are quite a few functions in Entry_section which now do not
need to be overiden from Entry. This suggests the change is beneficial
even without further functionality being added.
A side benefit is that the properties of sections are now consistent with
other entries. This fixes a problem in testListCmd() where some properties
are missing for sections.
Unfortunately this is a very large commit since it is not feasible to do
the migration piecemeal. Given the substantial tests available and the
100% code coverage of binman, we should be able to do this safely.
Signed-off-by: Simon Glass <sjg@chromium.org>
Add support for locating an image's Fdt map which is used to determine
the contents and structure of the image.
Signed-off-by: Simon Glass <sjg@chromium.org>
It is useful to be able to summarise all the entries in an image, e.g. to
display this to this user. Add a new ListEntries() method to Entry, and
set up a way to call it through the Image class.
Signed-off-by: Simon Glass <sjg@chromium.org>
It is useful to add the CBFS file information (offset, size, etc.) into
the FDT so that the layout is complete. Add support for this.
Signed-off-by: Simon Glass <sjg@chromium.org>
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>
Add support for detecting entries that change size after they have already
been packed, and re-running packing when it happens.
This removes the limitation that entry size cannot change after
PackEntries() is called.
Signed-off-by: Simon Glass <sjg@chromium.org>
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>
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>
At present entry modules can only be accessed using Entry.Lookup() or
Entry.Create(). Most of the time this is fine, but sometimes a module
needs to provide constants or helper functions useful to other modules.
It is easier in this case to use 'import'.
Add an __init__ file to permit this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Compression is currently available only with blobs. However we want to
report the compression algorithm and uncompressed size for all entries,
so that other entry types can support compression. This will help with
the forthcoming 'list' feature which lists entries in the image.
Move the compression properties into the base class. Also fix up the docs
which had the wrong property name.
Signed-off-by: Simon Glass <sjg@chromium.org>
It is useful to be able to quickly locate the FDT map in the image. An
easy way to do this is with a pointer at the start or end of the image.
Add an 'image header' entry, which places a magic number followed by a
pointer to the FDT map. This can be located at the start or end of the
image, or at a chosen location.
As part of this, update GetSiblingImagePos() to detect missing siblings.
Signed-off-by: Simon Glass <sjg@chromium.org>
An FDT map is an entry which holds a full description of the image
entries, in FDT format. It can be discovered using the magic string at
its start. Tools can locate and read this entry to find out what entries
are in the image and where each entry is located.
Signed-off-by: Simon Glass <sjg@chromium.org>
A feature of CBFS is that it allows files to be positioned at particular
offset (as with binman in general). This is useful to support
execute-in-place (XIP) code, since this may not be relocatable.
Add a new cbfs-offset property to control this.
Signed-off-by: Simon Glass <sjg@chromium.org>
An Integrated Firmware Image is used to hold various binaries used for
booting with Apollolake and some later devices. Add support for this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Add support for putting CBFSs (Coreboot Filesystems) in an image. This
allows binman to produce firmware images used by coreboot to boot.
Signed-off-by: Simon Glass <sjg@chromium.org>
We currenty support using the ELF file in U-Boot proper and SPL, but not
TPL. Add this as it is useful both with sandbox and for CBFS to allow
adding TPL as a 'stage'.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present text entries use an indirect method to specify the text to use,
with a label pointing to the text itself.
Allow the text to be directly written into the node. This is more
convenient in cases where the text is constant.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present having a descriptor means that there is an ME (Intel
Management Engine) entry as well. The descriptor provides the ME location
and assumes that it is present.
For some SoCs this is not true. Before providing the location of a
potentially non-existent entry, check if it is present.
Update the comment in the ME entry also.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present binman requires that the Intel descriptor has an explicit
offset. Generally this is 0 since the descriptor is at the start of the
image. Add a default to handle this, so users don't need to specify the
offset.
Signed-off-by: Simon Glass <sjg@chromium.org>
FD is a bit confusing so write this out in full. Also avoid splitting the
string so that people can grep for the error message more easily.
Signed-off-by: Simon Glass <sjg@chromium.org>
This code reads a binary value and then uses it as a string to look up
another value. Add conversions to make this work as expected on Python 3.
Signed-off-by: Simon Glass <sjg@chromium.org>
This needs special care to ensure that the bytes type is used for
binary data. Add conversion code to deal with strings and bytes
correctly.
Signed-off-by: Simon Glass <sjg@chromium.org>
With Python 3 we want to use the 'bytes' type instead of 'str'. Adjust the
code accordingly so that it works on both Python 2 and Python 3.
Signed-off-by: Simon Glass <sjg@chromium.org>
The method of multiplying a character by a number works well for creating
a repeated string in Python 2. But in Python 3 we need to use bytes()
instead, to avoid unicode problems, since 'bytes' is no-longer just an
alias of 'str'.
Create a function to handle this detail and call it from the relevant
places in binman.
Signed-off-by: Simon Glass <sjg@chromium.org>
The lz4 utility inserts binary data in its output which cannot always be
converted to unicode (nor should it be). Fix this by using the new binary
mode for program output.
Signed-off-by: Simon Glass <sjg@chromium.org>
Python 3 requires this, and Python 2 allows it. Convert the code over to
ensure compatibility with Python 3.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present sections are always placed automatically. Even if an 'offset'
property is provided it is ignored. Update the logic to support an offset
for sections.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
An important property is missing. Update the entry comment to include
this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
It is not good practice to raise an exception in a constructor. In this
case the 'text' entry may not actually be used, if -i is used to filter
out the images that get built.
Move the exception to where the data is actually used.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
At present, stripped files don't have the right pathname which means that
blob compression cannot be used. Fix this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Some platforms use this instead of FSP to set up the platform, including
memory. Add support for this in binman. This is needed for
chromebook_samus, for example.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
For sandbox we want to put ELF files in the image since that is what we
need to execute. Add support for this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Normally x86 platforms use the end-at-4gb option. This currently produces
an FMAP with positions which have a large offset. The use of end-at-4gb is
a useful convenience within binman, but we don't really want to export
a map with these offsets.
Fix this by subtracting the 'skip at start' parameter.
Also put the code which convers names to fmap format, for clarity.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present sections have no record of their parent so it is not possible
to traverse up the tree to the root and figure out the position of a
section within the image.
Change the constructor to record this information.
Signed-off-by: Simon Glass <sjg@chromium.org>
When TPL is used on x86 we may want to program the microcode (at least for
the first CPU) early in boot. Add support for this by refactoring the
existing code to be more generic.
Signed-off-by: Simon Glass <sjg@chromium.org>
In some cases it is useful to add a group of files to the image and be
able to access them at run-time. Of course it is possible to generate
the binman config file with a set of blobs each with a filename. But for
convenience, add an entry type which can do this.
Add required support (for adding nodes and string properties) into the
state module.
Signed-off-by: Simon Glass <sjg@chromium.org>
Add support for compressing blob entries. This can help reduce image sizes
for many types of data. It requires that the firmware be able to
decompress the data at run-time.
Signed-off-by: Simon Glass <sjg@chromium.org>
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>
At present the control module has state information in it, since it is the
primary user of this. But it is a bit odd to have entries and other
modules importing control to obtain this information.
It seems better to have a dedicated state module, which control can use as
well. Create a new module using code from control and update other modules
to use it.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present if there are two vblock entries an image their contents are
written to the same file in the output directory. This prevents checking
the contents of each separately.
Fix this by adding part of the entry path to the filename, and add some
missing comments.
Signed-off-by: Simon Glass <sjg@chromium.org>
Sometimes we want to include TPL for x86 platforms, such as when we want
to select between different SPL images (e.g. for Chrome OS verified boot).
Add support for this.
Signed-off-by: Simon Glass <sjg@chromium.org>
When the value of a text entry is not provided an execption is generated
talking about a None type. This is confusing. Add a more explanatory error
and a test for this case.
Signed-off-by: Simon Glass <sjg@chromium.org>
This entry contains the PowerPC mpc85xx boot page and resetvec
sections.
Signed-off-by: Jagdish Gediya <jagdish.gediya@nxp.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: York Sun <york.sun@nxp.com>
This function name is too generic for its purpose and is therefore
confusing. It actually only applies to blobs, so rename it to indicate
this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Add support for U-Boot's TPL and TPL device tree. Also fix a few comments
in the other device-tree entries.
Signed-off-by: Simon Glass <sjg@chromium.org>
It is sometimes useful to have an area of the image which is all zeroes,
or all 0xff. This can often be achieved by padding the size of an an
existing entry and setting the pad byte for an entry or image.
But it is useful to have an explicit means of adding blocks of repeating
data to the image. Add a 'fill' entry type to handle this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Add an entry type which can hold a Chrome OS EC.
To make this work a new entry type is created, which supports getting a
blob filename from the command line.
Signed-off-by: Simon Glass <sjg@chromium.org>
Add an entry which can hold an FMAP region as used by flashrom, an
open-source flashing tool used on Linux x86 machines. This provides a
simplified non-hierarchical view of the entries in the image and has a
signature at the start to allow flashrom to find it in the image.
Signed-off-by: Simon Glass <sjg@chromium.org>
Binman supports quite a number of different entries now. The operation of
these is not always obvious but at present the source code is the only
reference for understanding how an entry works.
Add a way to create documentation (from the source code) which can be put
in a new 'README.entries' file.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present only the more complex entries are documented. It is useful to
have documentation for all entries in one place.
As a first step, add and expand the documentation to cover all entries.
Signed-off-by: Simon Glass <sjg@chromium.org>
It is useful to able to write an identifying string to the image within an
entry. Add a 'text' entry type to handle this. The actual text is
typically passed to binman on the command line. The text is not itself
nul-terminated but this can be achieved if required by setting the size of
the entry to something larger than the text.
Signed-off-by: Simon Glass <sjg@chromium.org>
Sometimes it is useful to pass binman the value of an entry property from
the command line. For example some entries need access to files and it is
not always convenient to put these filenames in the image definition
(device tree).
Add a -a option which can be used like this:
-a<prop>=<value>
where
<prop> is the property to set
<value> is the value to set it to
Signed-off-by: Simon Glass <sjg@chromium.org>
At present each entry has an offset within its parent section. This is
useful for figuring out how entries relate to one another. However it
is sometimes necessary to locate an entry within an image, regardless
of which sections it is nested inside.
Add a new 'image-pos' property to provide this information. Also add
some documentation for the -u option binman provides, which updates the
device tree with final entry information.
Since the image position is a better symbol to use for the position of
U-Boot as obtained by SPL, update the SPL symbols to use this instead of
offset, which might be incorrect if hierarchical sections are used.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present the .map file produced for each image does not include the
overall image size. This is useful information.
Update the code to generate it in the .map file as well as the updated
FDT. Also fix a few comments while we are here.
Signed-off-by: Simon Glass <sjg@chromium.org>
After some thought, I believe there is an unfortunate naming flaw in
binman. Entries have a position and size, but now that we support
hierarchical sections it is unclear whether a position should be an
absolute position within the image, or a relative position within its
parent section.
At present 'position' actually means the relative position. This indicates
a need for an 'image position' for code that wants to find the location of
an entry without having to do calculations back through parents to
discover this image position.
A better name for the current 'position' or 'pos' is 'offset'. It is not
always an absolute position, but it is always an offset from its parent
offset.
It is unfortunate to rename this concept now, 18 months after binman was
introduced. However I believe it is the right thing to do. The impact is
mostly limited to binman itself and a few changes to in-tree users to
binman:
tegra
sunxi
x86
The change makes old binman definitions (e.g. downstream or out-of-tree)
incompatible if they use the 'pos = <...>' property. Later work will
adjust binman to generate an error when it is used.
Signed-off-by: Simon Glass <sjg@chromium.org>