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Signed-off-by: Uwe Kleine-König <uwe@kleine-koenig.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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fdtoverlay doesn't have a -t option, so explaining the type formats and
modifier prefixes doesn't make much sense.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Message-Id: <20230315100819.13387-1-u.kleine-koenig@pengutronix.de>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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At present the tool terminates its execution if one of the overlays passed
as command-line arguments can't be successfully read or applied, but the exit
code of the process is zero, making failures hard to detect inside scripts.
Signed-off-by: Valter Minute <valter.minute@toradex.com>
Message-Id: <20191009123256.14248-1-valter.minute@toradex.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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At present the fdtoverlay tool allocates space for its output based on a
calculation of the worse case size based on the size of the input blobs.
Except.. that certain edge cases with very long target paths can actually
exceed that "worst case" calculation.
This reworks the code to instead dynamically reallocate the output buffer
if we run out of space at any point.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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Make several improvements to the error messages from the fdtoverlay helper
program: improve brevity, consistently quote filenames and print symbolic
errors from libfdt rather than a raw error number.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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The fdtoverlay helper program checks if it has read a base blob which is
incomplete: that is, where the amount of data read in is less that the
declared size of the blob.
This applies the same check for safety to each overlay blob as well.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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Replace instances of GPLv2 or later boilerplate with SPDX tags.
Signed-off-by: Rob Herring <robh@kernel.org>
Message-Id: <20190620211944.9378-2-robh@kernel.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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It's more appropriate than off_t since it is, after all, a size not an
offset.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
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There are no less than _four_ variants on utilfdt_read() which is a bit
excessive. The _len() variants are particularly pointless, since we can
achieve the same thing with very little extra verbosity by using the usual
convention of ignoring return parameters if they're NULL. So, get rid of
them (we keep the shorter names without _len, but add now-optional len
parameters).
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
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alloca entails a complicated header situation when using other platforms, where
some split it out in alloca.h while others include it as a standard part of
stdlib.h.
The cons don't seem to outweigh the pros, so switch it to malloc.
Signed-off-by: Kyle Evans <kevans@FreeBSD.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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The fdtoverlay utility reads in the base fdt blob, then expands it to make
room for all the overlays requested. However, it uses the totalsize field
of the base blob without verifying that it actually read all of it in (it's
possible the blob file could have been truncated).
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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Since libfdt support overlay application on FDT blobs, provide
a command line tool that applies an arbitrary number of
overlays, one after another to a base fdt blob and output
the result in the given file.
Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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