Commit f5df87b8 authored by Nicholas Piggin's avatar Nicholas Piggin Committed by Michael Ellerman
Browse files

powerpc/build: Remove -pipe from compilation flags 



x86 removed -pipe in commit 437e88ab ("x86/build: Remove -pipe from
KBUILD_CFLAGS") and the newer arm64 and riscv seem to have never used it,
so that seems to be the way the world's going.

Compile performance building defconfig on a POWER10 PowerNV system
was in the noise after 10 builds each. No point in adding options unless
they help something, so remove it.

Signed-off-by: default avatarNicholas Piggin <npiggin@gmail.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230606064830.184083-1-npiggin@gmail.com
parent 8bce81db

arch/powerpc/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -166,7 +166,7 @@ asinstr := $(call as-instr,lis 9$(comma)foo@high,-DHAVE_AS_ATHIGH=1) 
KBUILD_CPPFLAGS	+= -I $(srctree)/arch/$(ARCH) $(asinstr)

KBUILD_AFLAGS	+= $(AFLAGS-y)

KBUILD_CFLAGS	+= $(call cc-option,-msoft-float)

KBUILD_CFLAGS	+= -pipe $(CFLAGS-y)

KBUILD_CFLAGS	+= $(CFLAGS-y)

CPP		= $(CC) -E $(KBUILD_CFLAGS)



CHECKFLAGS	+= -m$(BITS) -D__powerpc__ -D__powerpc$(BITS)__

arch/powerpc/boot/Makefile

+2 −2
Original line number Diff line number Diff line
@@ -71,7 +71,7 @@ endif 
BOOTCPPFLAGS	:= -nostdinc $(LINUXINCLUDE)

BOOTCPPFLAGS	+= -isystem $(shell $(BOOTCC) -print-file-name=include)



BOOTCFLAGS	:= -pipe $(BOOTTARGETFLAGS) \

BOOTCFLAGS	:= $(BOOTTARGETFLAGS) \

		   -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \

		   -fno-strict-aliasing -O2 \

		   -msoft-float -mno-altivec -mno-vsx \
@@ -81,7 +81,7 @@ BOOTCFLAGS := -pipe $(BOOTTARGETFLAGS) \ 
		   $(call cc-option,-mno-spe) $(call cc-option,-mspe=no) \

		   -fomit-frame-pointer -fno-builtin -fPIC



BOOTAFLAGS	:= -pipe $(BOOTTARGETFLAGS) -D__ASSEMBLY__

BOOTAFLAGS	:= $(BOOTTARGETFLAGS) -D__ASSEMBLY__



BOOTARFLAGS	:= -crD