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Merge tag 'kbuild-fixes-v4.17-2' of git://git.kernel.org/pub/scm/linu…
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…x/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
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Linus Torvalds committed May 27, 2018
2 parents 7fbb615 + 8438ee7 commit 861d9dd
Showing 1 changed file with 6 additions and 3 deletions.
9 changes: 6 additions & 3 deletions Makefile
Original file line number Diff line number Diff line change
Expand Up @@ -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
Expand Down Expand Up @@ -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
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