File optimize_harder_Ofast.patch of Package linux-px

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File optimize_harder_Ofast.patch of Package linux-px (Revision 9b471347ded3338a483d99de7e9add95)

Currently displaying revision 9b471347ded3338a483d99de7e9add95 , Show latest

diff --git a/Makefile b/Makefile
--- a/Makefile
+++ b/Makefile
@@ -442,7 +442,7 @@ endif
 HOSTPKG_CONFIG	= pkg-config

KBUILD_USERHOSTCFLAGS := -Wall -Wmissing-prototypes -Wstrict-prototypes \
-			 -O2 -fomit-frame-pointer -std=gnu11 \
+			 -Ofast -fomit-frame-pointer -std=gnu11 \
			 -Wdeclaration-after-statement
 KBUILD_USERCFLAGS  := $(KBUILD_USERHOSTCFLAGS) $(USERCFLAGS)
 KBUILD_USERLDFLAGS := $(USERLDFLAGS)
@@ -474,7 +474,7 @@ endif
 			    -Wclippy::dbg_macro

KBUILD_HOSTCFLAGS   := $(KBUILD_USERHOSTCFLAGS) $(HOST_LFS_CFLAGS) $(HOSTCFLAGS)
-KBUILD_HOSTCXXFLAGS := -Wall -O2 $(HOST_LFS_CFLAGS) $(HOSTCXXFLAGS)
+KBUILD_HOSTCXXFLAGS := -Wall -Ofast $(HOST_LFS_CFLAGS) $(HOSTCXXFLAGS)
 KBUILD_HOSTRUSTFLAGS := $(rust_common_flags) -O -Cstrip=debuginfo \
 			-Zallow-features= $(HOSTRUSTFLAGS)
 KBUILD_HOSTLDFLAGS  := $(HOST_LFS_LDFLAGS) $(HOSTLDFLAGS)
@@ -757,7 +757,7 @@ KBUILD_CFLAGS       += $(call cc-disable-warning, format-overflow)
 KBUILD_CFLAGS  += $(call cc-disable-warning, address-of-packed-member)

ifdef CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE
-KBUILD_CFLAGS += -O2
+KBUILD_CFLAGS += -Ofast
 KBUILD_RUSTFLAGS += -Copt-level=2
 else ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
 KBUILD_CFLAGS += -Os
diff --git a/init/Kconfig b/init/Kconfig
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -1401,10 +1401,10 @@ choice
 	default CC_OPTIMIZE_FOR_PERFORMANCE

config CC_OPTIMIZE_FOR_PERFORMANCE
-	bool "Optimize for performance (-O2)"
+	bool "Optimize for performance (-Ofast)"
 	help
 	  This is the default optimization level for the kernel, building
-	  with the "-O2" compiler flag for best performance and most
+	  with the "-Ofast" compiler flag for best performance and most
 	  helpful compile-time warnings.

config CC_OPTIMIZE_FOR_SIZE

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File optimize_harder_Ofast.patch of Package linux-px (Revision 9b471347ded3338a483d99de7e9add95)

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