build: suppress unnecessary kernel config rewrites to speed up build
Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 48143
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1 changed files with 10 additions and 5 deletions
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@ -80,6 +80,7 @@ ifeq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),y)
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endif
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define Kernel/SetInitramfs
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rm -f $(LINUX_DIR)/.config.prev
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mv $(LINUX_DIR)/.config $(LINUX_DIR)/.config.old
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$(call Kernel/SetInitramfs/PreConfigure)
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echo 'CONFIG_INITRAMFS_ROOT_UID=$(shell id -u)' >> $(LINUX_DIR)/.config
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@ -96,9 +97,9 @@ else
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endif
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define Kernel/SetNoInitramfs
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mv $(LINUX_DIR)/.config $(LINUX_DIR)/.config.old
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grep -v INITRAMFS $(LINUX_DIR)/.config.old > $(LINUX_DIR)/.config
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echo 'CONFIG_INITRAMFS_SOURCE=""' >> $(LINUX_DIR)/.config
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mv $(LINUX_DIR)/.config.set $(LINUX_DIR)/.config.old
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grep -v INITRAMFS $(LINUX_DIR)/.config.old > $(LINUX_DIR)/.config.set
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echo 'CONFIG_INITRAMFS_SOURCE=""' >> $(LINUX_DIR)/.config.set
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endef
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define Kernel/Configure/Default
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@ -109,11 +110,15 @@ define Kernel/Configure/Default
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echo "# CONFIG_KALLSYMS_ALL is not set" >> $(LINUX_DIR)/.config.target
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echo "# CONFIG_KALLSYMS_UNCOMPRESSED is not set" >> $(LINUX_DIR)/.config.target
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$(SCRIPT_DIR)/metadata.pl kconfig $(TMP_DIR)/.packageinfo $(TOPDIR)/.config $(KERNEL_PATCHVER) > $(LINUX_DIR)/.config.override
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$(SCRIPT_DIR)/kconfig.pl 'm+' '+' $(LINUX_DIR)/.config.target /dev/null $(LINUX_DIR)/.config.override > $(LINUX_DIR)/.config
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$(SCRIPT_DIR)/kconfig.pl 'm+' '+' $(LINUX_DIR)/.config.target /dev/null $(LINUX_DIR)/.config.override > $(LINUX_DIR)/.config.set
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$(call Kernel/SetNoInitramfs)
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rm -rf $(KERNEL_BUILD_DIR)/modules
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cmp -s $(LINUX_DIR)/.config.set $(LINUX_DIR)/.config.prev || { \
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cp $(LINUX_DIR)/.config.set $(LINUX_DIR)/.config; \
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cp $(LINUX_DIR)/.config.set $(LINUX_DIR)/.config.prev; \
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}
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$(_SINGLE) [ -d $(LINUX_DIR)/user_headers ] || $(MAKE) $(KERNEL_MAKEOPTS) INSTALL_HDR_PATH=$(LINUX_DIR)/user_headers headers_install
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$(SH_FUNC) grep '=[ym]' $(LINUX_DIR)/.config | LC_ALL=C sort | md5s > $(LINUX_DIR)/.vermagic
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$(SH_FUNC) grep '=[ym]' $(LINUX_DIR)/.config.set | LC_ALL=C sort | md5s > $(LINUX_DIR)/.vermagic
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endef
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define Kernel/Configure/Initramfs
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