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fdt: Add Kconfig options to control code size

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For better or worse libfdt recent grew a lot of code that checks the
validity of the device tree in great detail. When using unsigned or
unverified data this makes things safer, but it does add to code size.

Add some controls to select the trade-off between safety and code size.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
This commit is contained in:
Simon Glass
2019-10-27 09:47:40 -06:00
parent 8659895350
commit 0d76afc032
2 changed files with 35 additions and 1 deletions
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3
lib/libfdt/Makefile
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@@ -22,4 +22,5 @@ obj-y += fdt_ro.o
# U-Boot own file
obj-y += fdt_region.o
ccflags-y := -I$(srctree)/scripts/dtc/libfdt
ccflags-y := -I$(srctree)/scripts/dtc/libfdt \
-DFDT_ASSUME_MASK=$(CONFIG_$(SPL_TPL_)OF_LIBFDT_ASSUME_MASK)