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Commit 861d9dd3 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'kbuild-fixes-v4.17-2' of... 

Merge tag 'kbuild-fixes-v4.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull more Kbuild fixes from Masahiro Yamada:

 - enable '-fno-tree-loop-im' only when supported

 - add '-fno-PIE' option before the asm-goto test

* tag 'kbuild-fixes-v4.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  Makefile: disable PIE before testing asm goto
  kbuild: gcov: enable -fno-tree-loop-im if supported
parents 7fbb6157 8438ee76

Makefile

+6 −3
Original line number Diff line number Diff line
@@ -500,6 +500,9 @@ RETPOLINE_CFLAGS_CLANG := -mretpoline-external-thunk 
RETPOLINE_CFLAGS := $(call cc-option,$(RETPOLINE_CFLAGS_GCC),$(call cc-option,$(RETPOLINE_CFLAGS_CLANG)))

export RETPOLINE_CFLAGS



KBUILD_CFLAGS	+= $(call cc-option,-fno-PIE)

KBUILD_AFLAGS	+= $(call cc-option,-fno-PIE)



# check for 'asm goto'

ifeq ($(call shell-cached,$(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC) $(KBUILD_CFLAGS)), y)

  CC_HAVE_ASM_GOTO := 1
@@ -621,9 +624,9 @@ endif # $(dot-config) 
# Defaults to vmlinux, but the arch makefile usually adds further targets

all: vmlinux



KBUILD_CFLAGS	+= $(call cc-option,-fno-PIE)

KBUILD_AFLAGS	+= $(call cc-option,-fno-PIE)

CFLAGS_GCOV	:= -fprofile-arcs -ftest-coverage -fno-tree-loop-im $(call cc-disable-warning,maybe-uninitialized,)

CFLAGS_GCOV	:= -fprofile-arcs -ftest-coverage \

	$(call cc-option,-fno-tree-loop-im) \

	$(call cc-disable-warning,maybe-uninitialized,)

export CFLAGS_GCOV CFLAGS_KCOV



# The arch Makefile can set ARCH_{CPP,A,C}FLAGS to override the default