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use lazy evaluation to allow targets to override kernel config files

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@26714 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd 2011-04-17 21:47:44 +00:00
parent 0e460adef9
commit fbbdac4faa
1 changed files with 14 additions and 21 deletions
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35
include/target.mk
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@ -112,42 +112,35 @@ __config_name_list = $(1)/config-$(KERNEL_PATCHVER) $(1)/config-default
__config_list = $(firstword $(wildcard $(call __config_name_list,$(1))))
find_kernel_config=$(if $(__config_list),$(__config_list),$(lastword $(__config_name_list)))
GENERIC_LINUX_CONFIG:=$(call find_kernel_config,$(GENERIC_PLATFORM_DIR))
LINUX_TARGET_CONFIG:=$(call find_kernel_config,$(PLATFORM_DIR))
GENERIC_LINUX_CONFIG = $(call find_kernel_config,$(GENERIC_PLATFORM_DIR))
LINUX_TARGET_CONFIG = $(call find_kernel_config,$(PLATFORM_DIR))
ifneq ($(PLATFORM_DIR),$(PLATFORM_SUBDIR))
LINUX_SUBTARGET_CONFIG:=$(call find_kernel_config,$(PLATFORM_SUBDIR))
LINUX_SUBTARGET_CONFIG = $(call find_kernel_config,$(PLATFORM_SUBDIR))
endif
# config file list used for compiling
LINUX_KCONFIG_LIST := $(wildcard $(GENERIC_LINUX_CONFIG) $(LINUX_TARGET_CONFIG) $(LINUX_SUBTARGET_CONFIG) $(TOPDIR)/env/kernel-config)
LINUX_KCONFIG_LIST = $(wildcard $(GENERIC_LINUX_CONFIG) $(LINUX_TARGET_CONFIG) $(LINUX_SUBTARGET_CONFIG) $(TOPDIR)/env/kernel-config)
# default config list for reconfiguring
# defaults to subtarget if subtarget exists and target does not
# defaults to target otherwise
ifeq ($(if $(wildcard $(LINUX_TARGET_CONFIG)),,$(if $(LINUX_SUBTARGET_CONFIG),1)),1)
LINUX_RECONFIG_LIST := $(wildcard $(GENERIC_LINUX_CONFIG) $(LINUX_TARGET_CONFIG) $(LINUX_SUBTARGET_CONFIG))
LINUX_RECONFIG_TARGET := $(LINUX_SUBTARGET_CONFIG)
else
LINUX_RECONFIG_LIST := $(wildcard $(GENERIC_LINUX_CONFIG) $(LINUX_TARGET_CONFIG))
LINUX_RECONFIG_TARGET := $(LINUX_TARGET_CONFIG)
endif
USE_SUBTARGET_CONFIG = $(if $(wildcard $(LINUX_TARGET_CONFIG)),,$(if $(LINUX_SUBTARGET_CONFIG),1))
LINUX_RECONFIG_LIST = $(wildcard $(GENERIC_LINUX_CONFIG) $(LINUX_TARGET_CONFIG) $(if $(USE_SUBTARGET_CONFIG),$(LINUX_SUBTARGET_CONFIG)))
LINUX_RECONFIG_TARGET = $(if $(USE_SUBTARGET_CONFIG),$(LINUX_SUBTARGET_CONFIG),$(LINUX_TARGET_CONFIG))
# select the config file to be cahnged by kernel_menuconfig/kernel_oldconfig
ifeq ($(CONFIG_TARGET),platform)
LINUX_RECONFIG_LIST := $(wildcard $(GENERIC_LINUX_CONFIG) $(LINUX_TARGET_CONFIG))
LINUX_RECONFIG_TARGET := $(LINUX_TARGET_CONFIG)
LINUX_RECONFIG_LIST = $(wildcard $(GENERIC_LINUX_CONFIG) $(LINUX_TARGET_CONFIG))
LINUX_RECONFIG_TARGET = $(LINUX_TARGET_CONFIG)
endif
ifeq ($(CONFIG_TARGET),subtarget)
ifeq ($(wildcard $(LINUX_SUBTARGET_CONFIG)),)
$(error Subtarget not available, cannot reconfigure)
else
LINUX_RECONFIG_LIST := $(wildcard $(GENERIC_LINUX_CONFIG) $(LINUX_TARGET_CONFIG) $(LINUX_SUBTARGET_CONFIG))
LINUX_RECONFIG_TARGET := $(LINUX_SUBTARGET_CONFIG)
endif
LINUX_RECONFIG_LIST = $(wildcard $(GENERIC_LINUX_CONFIG) $(LINUX_TARGET_CONFIG) $(LINUX_SUBTARGET_CONFIG))
LINUX_RECONFIG_TARGET = $(LINUX_SUBTARGET_CONFIG)
endif
ifeq ($(CONFIG_TARGET),env)
LINUX_RECONFIG_LIST := $(LINUX_KCONFIG_LIST)
LINUX_RECONFIG_TARGET := $(TOPDIR)/env/kernel-config
LINUX_RECONFIG_LIST = $(LINUX_KCONFIG_LIST)
LINUX_RECONFIG_TARGET = $(TOPDIR)/env/kernel-config
endif
__linux_confcmd = $(SCRIPT_DIR)/kconfig.pl $(2) $(patsubst %,+,$(wordlist 2,9999,$(1))) $(1)