|  | # SPDX-License-Identifier: GPL-2.0 | 
|  | # Configuration heplers | 
|  |  | 
|  | cmd_merge_fragments = \ | 
|  | $(srctree)/scripts/kconfig/merge_config.sh \ | 
|  | $4 -m -O $(objtree) $(srctree)/arch/$(SRCARCH)/configs/$2 \ | 
|  | $(foreach config,$3,$(srctree)/arch/$(SRCARCH)/configs/$(config).config) | 
|  |  | 
|  | # Creates 'merged defconfigs' | 
|  | # --------------------------------------------------------------------------- | 
|  | # Usage: | 
|  | #   $(call merge_into_defconfig,base_config,config_fragment1 config_fragment2 ...) | 
|  | # | 
|  | # Input config fragments without '.config' suffix | 
|  | define merge_into_defconfig | 
|  | $(call cmd,merge_fragments,$1,$2) | 
|  | +$(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig | 
|  | endef | 
|  |  | 
|  |  | 
|  | # Creates 'merged defconfigs without warning about overrides' | 
|  | # --------------------------------------------------------------------------- | 
|  | # Usage: | 
|  | #   $(call merge_into_defconfig_override,base_config,config_fragment1 config_fragment2 ...) | 
|  | # | 
|  | # Input config fragments without '.config' suffix | 
|  | define merge_into_defconfig_override | 
|  | $(call cmd,merge_fragments,$1,$2,-Q) | 
|  | +$(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig | 
|  | endef |