Makefile: Add a target to create the .cfg files

A common requirement when converting CONFIG options to Kconfig is to check
that the effective configuration has not changed due to the conversion. Add
a target which creates this configuration (in the form of u-boot.cfg) but
does not build U-Boot. This speeds up the checking.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2016-11-13 14:25:50 -07:00
parent 0317724e6c
commit 1bd876301b

View file

@ -821,6 +821,8 @@ append = cat $(filter-out $< $(PHONY), $^) >> $@
quiet_cmd_pad_cat = CAT $@
cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
cfg: u-boot.cfg
all: $(ALL-y)
ifeq ($(CONFIG_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y)
@echo "===================== WARNING ======================"
@ -1527,6 +1529,7 @@ help:
@echo ' cscope - Generate cscope index'
@echo ' ubootrelease - Output the release version string (use with make -s)'
@echo ' ubootversion - Output the version stored in Makefile (use with make -s)'
@echo " cfg - Don't build, just create the .cfg files"
@echo ''
@echo 'Static analysers'
@echo ' checkstack - Generate a list of stack hogs'