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build: clean up handling of the kernel config

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- support kernel config overlays in env/
- allow overriding the target kernel config with CONFIG_TARGET=platform|subtarget|env

SVN-Revision: 26498
This commit is contained in:
Felix Fietkau
2011-04-06 14:48:55 +00:00
parent a4e59b89b8
commit caf4747f0c
3 changed files with 53 additions and 22 deletions
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11
include/kernel-build.mk
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@@ -89,7 +89,7 @@ define BuildKernel
echo; \
) > $$@
$(STAMP_CONFIGURED): $(STAMP_PREPARED) $(LINUX_CONFIG) $(GENERIC_LINUX_CONFIG) $(TOPDIR)/.config
$(STAMP_CONFIGURED): $(STAMP_PREPARED) $(LINUX_KCONFIG_LIST) $(TOPDIR)/.config
$(Kernel/Configure)
touch $$@
@@ -114,13 +114,10 @@ define BuildKernel
$(MAKE) -C image compile TARGET_BUILD=
oldconfig menuconfig nconfig: $(STAMP_PREPARED) $(STAMP_CHECKED) FORCE
[ -e "$(LINUX_CONFIG)" ] || touch "$(LINUX_CONFIG)"
$(LINUX_CONFCMD) > $(LINUX_DIR)/.config
touch $(LINUX_CONFIG)
rm -f $(STAMP_CONFIGURED)
$(LINUX_RECONF_CMD) > $(LINUX_DIR)/.config
$(_SINGLE)$(MAKE) -C $(LINUX_DIR) $(KERNEL_MAKEOPTS) $$@
$(SCRIPT_DIR)/kconfig.pl '>' $(if $(LINUX_SUBCONFIG),'+' $(GENERIC_LINUX_CONFIG) $(LINUX_CONFIG),$(GENERIC_LINUX_CONFIG)) \
$(LINUX_DIR)/.config > $(if $(LINUX_SUBCONFIG),$(LINUX_SUBCONFIG),$(LINUX_CONFIG))
$(Kernel/Configure)
$(LINUX_RECONF_DIFF) $(LINUX_DIR)/.config > $(LINUX_RECONFIG_TARGET)
install: $(LINUX_DIR)/.image
+$(MAKE) -C image compile install TARGET_BUILD=