The directory tools/ is always built before common/. So when envcrc tool is necessary in common/Makefile, it already exists.
Signed-off-by: Masahiro Yamada yamada.m@jp.panasonic.com ---
Here is the more detailed explanation.
(1) tools/ is always built before common/
See around line 540 of $(TOPDIR)/Makefile.
$(LIBS): depend $(SUBDIR_TOOLS) $(MAKE) $(build) $(dir $(subst $(obj),,$@))
(2) common/env_embedded.o is compiled only when CONFIG_ENV_IS_EMBEDDED=y or CONFIG_ENV_IS_IN_EEPROM=y CONFIG_ENV_IS_IN_FLASH=y or CONFIG_ENV_IS_NVRAM=y.
See around line 35 of common/Makeile
extra-$(CONFIG_ENV_IS_EMBEDDED) += env_embedded.o obj-$(CONFIG_ENV_IS_IN_EEPROM) += env_embedded.o extra-$(CONFIG_ENV_IS_IN_FLASH) += env_embedded.o obj-$(CONFIG_ENV_IS_IN_NVRAM) += env_embedded.o
(3) For all of the cases, tools/envcrc is generated.
See around line 35 of tools/Makefile
ENVCRC-$(CONFIG_ENV_IS_EMBEDDED) = y ENVCRC-$(CONFIG_ENV_IS_IN_DATAFLASH) = y ENVCRC-$(CONFIG_ENV_IS_IN_EEPROM) = y ENVCRC-$(CONFIG_ENV_IS_IN_FLASH) = y ENVCRC-$(CONFIG_ENV_IS_IN_ONENAND) = y ENVCRC-$(CONFIG_ENV_IS_IN_NAND) = y ENVCRC-$(CONFIG_ENV_IS_IN_NVRAM) = y ENVCRC-$(CONFIG_ENV_IS_IN_SPI_FLASH) = y CONFIG_BUILD_ENVCRC ?= $(ENVCRC-y)
common/Makefile | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/common/Makefile b/common/Makefile index 32acbf9..74404be 100644 --- a/common/Makefile +++ b/common/Makefile @@ -232,14 +232,11 @@ obj-y += stdio.o
CPPFLAGS += -I..
-$(obj)env_embedded.o: $(src)env_embedded.c $(obj)../tools/envcrc +$(obj)env_embedded.o: $(src)env_embedded.c $(CC) $(AFLAGS) -Wa,--no-warn \ -DENV_CRC=$(shell $(obj)../tools/envcrc) \ -c -o $@ $(src)env_embedded.c
-$(obj)../tools/envcrc: - $(MAKE) -C ../tools - # SEE README.arm-unaligned-accesses $(obj)hush.o: CFLAGS += $(PLATFORM_NO_UNALIGNED) $(obj)fdt_support.o: CFLAGS += $(PLATFORM_NO_UNALIGNED)