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 <yamad...@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)
--
1.8.3.2
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