From: Rafał Miłecki Date: Wed, 15 Jun 2022 08:41:37 +0000 (+0200) Subject: kernel: use KCFLAGS for passing EXTRA_OPTIMIZATION flags X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=1d42af720c6b6dcfcdd0b89bce386fca1607dcb3;p=openwrt%2Fstaging%2F981213.git kernel: use KCFLAGS for passing EXTRA_OPTIMIZATION flags This uses kernel's generic variable and doesn't require patching it with a custom Makefile change. It's expected *not* to change any behaviour. Signed-off-by: Rafał Miłecki --- diff --git a/include/kernel.mk b/include/kernel.mk index 01b737f132..ffc9ea5260 100644 --- a/include/kernel.mk +++ b/include/kernel.mk @@ -101,7 +101,7 @@ endif KERNEL_MAKE = $(MAKE) $(KERNEL_MAKEOPTS) KERNEL_MAKE_FLAGS = \ - KCFLAGS="$(call iremap,$(BUILD_DIR),$(notdir $(BUILD_DIR)))" \ + KCFLAGS="$(call iremap,$(BUILD_DIR),$(notdir $(BUILD_DIR))) $(call qstrip,$(CONFIG_EXTRA_OPTIMIZATION))" \ HOSTCFLAGS="$(HOST_CFLAGS) -Wall -Wmissing-prototypes -Wstrict-prototypes" \ CROSS_COMPILE="$(KERNEL_CROSS)" \ ARCH="$(LINUX_KARCH)" \ diff --git a/target/linux/generic/pending-5.10/201-extra_optimization.patch b/target/linux/generic/pending-5.10/201-extra_optimization.patch index cb1de80764..dcf39c574f 100644 --- a/target/linux/generic/pending-5.10/201-extra_optimization.patch +++ b/target/linux/generic/pending-5.10/201-extra_optimization.patch @@ -14,18 +14,12 @@ Signed-off-by: Felix Fietkau --- a/Makefile +++ b/Makefile -@@ -735,11 +735,11 @@ KBUILD_CFLAGS += $(call cc-disable-warni - KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member) - - ifdef CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE --KBUILD_CFLAGS += -O2 -+KBUILD_CFLAGS += -O2 $(EXTRA_OPTIMIZATION) +@@ -739,7 +739,7 @@ KBUILD_CFLAGS += -O2 else ifdef CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE_O3 --KBUILD_CFLAGS += -O3 -+KBUILD_CFLAGS += -O3 $(EXTRA_OPTIMIZATION) + KBUILD_CFLAGS += -O3 else ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE -KBUILD_CFLAGS += -Os -+KBUILD_CFLAGS += -Os -fno-reorder-blocks -fno-tree-ch $(EXTRA_OPTIMIZATION) ++KBUILD_CFLAGS += -Os -fno-reorder-blocks -fno-tree-ch endif # Tell gcc to never replace conditional load with a non-conditional one diff --git a/target/linux/generic/pending-5.15/201-extra_optimization.patch b/target/linux/generic/pending-5.15/201-extra_optimization.patch index 5300a5c4ab..96e93dde9b 100644 --- a/target/linux/generic/pending-5.15/201-extra_optimization.patch +++ b/target/linux/generic/pending-5.15/201-extra_optimization.patch @@ -14,18 +14,12 @@ Signed-off-by: Felix Fietkau --- a/Makefile +++ b/Makefile -@@ -752,11 +752,11 @@ KBUILD_CFLAGS += $(call cc-disable-warni - KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member) - - ifdef CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE --KBUILD_CFLAGS += -O2 -+KBUILD_CFLAGS += -O2 $(EXTRA_OPTIMIZATION) +@@ -756,7 +756,7 @@ KBUILD_CFLAGS += -O2 else ifdef CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE_O3 --KBUILD_CFLAGS += -O3 -+KBUILD_CFLAGS += -O3 $(EXTRA_OPTIMIZATION) + KBUILD_CFLAGS += -O3 else ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE -KBUILD_CFLAGS += -Os -+KBUILD_CFLAGS += -Os -fno-reorder-blocks -fno-tree-ch $(EXTRA_OPTIMIZATION) ++KBUILD_CFLAGS += -Os -fno-reorder-blocks -fno-tree-ch endif # Tell gcc to never replace conditional load with a non-conditional one