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 --- v4 use function size_check() split off change in tinker-rk3288_defconfig --- Kconfig | 8 ++++++++ Makefile | 8 ++++++++ 2 files changed, 16 insertions(+)
diff --git a/Kconfig b/Kconfig index 305b265ed7..69212bf58f 100644 --- a/Kconfig +++ b/Kconfig @@ -172,6 +172,14 @@ 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 diff --git a/Makefile b/Makefile index 6398117e64..073ef2b387 100644 --- a/Makefile +++ b/Makefile @@ -789,6 +789,12 @@ 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 @@ -1654,6 +1660,8 @@ 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) -- 2.20.1