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configs: define CONFIG_SPL_SIZE_LIMIT 

A new configuration variable CONFIG_SPL_SIZE_LIMIT is introduced to define
the board specific maximum size for the SPL file.

Use Makefile function size_check() to implement the test.

Depending on the size of CONFIG_SPL_SIZE_LIMIT an error like the following
is thrown:

spl/u-boot-spl.bin exceeds file size limit:
  limit:  30720 bytes
  actual: 33426 bytes
  excess: 2706 bytes
make: *** [Makefile:1663: spl/u-boot-spl.bin] Error 1

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
This commit is contained in:
Heinrich Schuchardt 2019-04-02 19:19:06 +02:00 committed by Tom Rini
parent 219dee7e38
commit 0a0f23142f
2 changed files with 16 additions and 0 deletions
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8
Kconfig
View File

@ -173,6 +173,14 @@ config TPL_SYS_MALLOC_F_LEN
particular needs this to operate, so that it can allocate the
initial serial device and any others that are needed.
config SPL_SIZE_LIMIT
int "Maximum size of SPL image"
depends on SPL
default 0
help
Specifies the maximum length of the U-Boot SPL image.
If this value is zero, it is ignored.
menuconfig EXPERT
bool "Configure standard U-Boot features (expert users)"
default y

8
Makefile
View File

@ -796,6 +796,12 @@ else
BOARD_SIZE_CHECK =
endif
ifneq ($(CONFIG_SPL_SIZE_LIMIT),0)
SPL_SIZE_CHECK = @$(call size_check,$@,$(CONFIG_SPL_SIZE_LIMIT))
else
SPL_SIZE_CHECK =
endif
# Statically apply RELA-style relocations (currently arm64 only)
# This is useful for arm64 where static relocation needs to be performed on
# the raw binary, but certain simulators only accept an ELF file (but don't
@ -1712,6 +1718,8 @@ u-boot.lds: $(LDSCRIPT) prepare FORCE
spl/u-boot-spl.bin: spl/u-boot-spl
@:
$(SPL_SIZE_CHECK)
spl/u-boot-spl: tools prepare \
$(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \
$(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb)