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2018-06-07Use size_t for blob lengths in utilfdt_read*David Gibson1-1/+1
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>
2018-06-07Consolidate utilfdt_read_len() variantsDavid Gibson1-2/+2
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>
2018-01-03fdtoverlay: Switch from using alloca to mallockevans@FreeBSD.org1-2/+2
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>
2017-09-27fdtoverlay: Sanity check blob sizeDavid Gibson1-0/+7
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>
2017-06-15fdtoverlay: A tool that applies overlaysPantelis Antoniou1-0/+168
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>