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Kbuild fixes for v5.4 (3rc)

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- fix build error when compiling SPARC VDSO with CONFIG_COMPAT=y
 
  - pass correct --arch option to Sparse
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Merge tag 'kbuild-fixes-v5.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild fixes from Masahiro Yamada:

 - fix build error when compiling SPARC VDSO with CONFIG_COMPAT=y

 - pass correct --arch option to Sparse

* tag 'kbuild-fixes-v5.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  kbuild: tell sparse about the $ARCH
  sparc: vdso: fix build error of vdso32
This commit is contained in:
Linus Torvalds 2019-11-14 08:48:10 -08:00
commit 96b95eff4a
2 changed files with 5 additions and 2 deletions
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3
Makefile
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@ -917,6 +917,9 @@ ifeq ($(CONFIG_RELR),y)
LDFLAGS_vmlinux += --pack-dyn-relocs=relr
endif
# make the checker run with the right architecture
CHECKFLAGS += --arch=$(ARCH)
# insure the checker run with the right endianness
CHECKFLAGS += $(if $(CONFIG_CPU_BIG_ENDIAN),-mbig-endian,-mlittle-endian)

4
arch/sparc/vdso/Makefile
View File

@ -65,14 +65,14 @@ $(vobjs): KBUILD_CFLAGS := $(filter-out $(GCC_PLUGINS_CFLAGS) $(SPARC_REG_CFLAGS
#
# vDSO code runs in userspace and -pg doesn't help with profiling anyway.
#
CFLAGS_REMOVE_vdso-note.o = -pg
CFLAGS_REMOVE_vclock_gettime.o = -pg
CFLAGS_REMOVE_vdso32/vclock_gettime.o = -pg
$(obj)/%.so: OBJCOPYFLAGS := -S
$(obj)/%.so: $(obj)/%.so.dbg FORCE
$(call if_changed,objcopy)
CPPFLAGS_vdso32.lds = $(CPPFLAGS_vdso.lds)
CPPFLAGS_vdso32/vdso32.lds = $(CPPFLAGS_vdso.lds)
VDSO_LDFLAGS_vdso32.lds = -m elf32_sparc -soname linux-gate.so.1
#This makes sure the $(obj) subdirectory exists even though vdso32/