Merge tag 'kbuild-v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild updates from Masahiro Yamada:

 - Remove potentially incomplete targets when Kbuid is interrupted by
   SIGINT etc in case GNU Make may miss to do that when stderr is piped
   to another program.

 - Rewrite the single target build so it works more correctly.

 - Fix rpm-pkg builds with V=1.

 - List top-level subdirectories in ./Kbuild.

 - Ignore auto-generated __kstrtab_* and __kstrtabns_* symbols in
   kallsyms.

 - Avoid two different modules in lib/zstd/ having shared code, which
   potentially causes building the common code as build-in and modular
   back-and-forth.

 - Unify two modpost invocations to optimize the build process.

 - Remove head-y syntax in favor of linker scripts for placing
   particular sections in the head of vmlinux.

 - Bump the minimal GNU Make version to 3.82.

 - Clean up misc Makefiles and scripts.

* tag 'kbuild-v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (41 commits)
  docs: bump minimal GNU Make version to 3.82
  ia64: simplify esi object addition in Makefile
  Revert "kbuild: Check if linker supports the -X option"
  kbuild: rebuild .vmlinux.export.o when its prerequisite is updated
  kbuild: move modules.builtin(.modinfo) rules to Makefile.vmlinux_o
  zstd: Fixing mixed module-builtin objects
  kallsyms: ignore __kstrtab_* and __kstrtabns_* symbols
  kallsyms: take the input file instead of reading stdin
  kallsyms: drop duplicated ignore patterns from kallsyms.c
  kbuild: reuse mksysmap output for kallsyms
  mksysmap: update comment about __crc_*
  kbuild: remove head-y syntax
  kbuild: use obj-y instead extra-y for objects placed at the head
  kbuild: hide error checker logs for V=1 builds
  kbuild: re-run modpost when it is updated
  kbuild: unify two modpost invocations
  kbuild: move vmlinux.o rule to the top Makefile
  kbuild: move .vmlinux.objs rule to Makefile.modpost
  kbuild: list sub-directories in ./Kbuild
  Makefile.compiler: replace cc-ifversion with compiler-specific macros
  ...

3 files changed, 11 insertions, 23 deletions

diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index 19470d29de16..dc4cbf0a5ca9 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -232,18 +232,6 @@ KBUILD_CFLAGS += $(cpu-as-y)
 KBUILD_AFLAGS += $(aflags-y)
 KBUILD_CFLAGS += $(cflags-y)
 
-head-$(CONFIG_PPC64)		:= arch/powerpc/kernel/head_64.o
-head-$(CONFIG_PPC_BOOK3S_32)	:= arch/powerpc/kernel/head_book3s_32.o
-head-$(CONFIG_PPC_8xx)		:= arch/powerpc/kernel/head_8xx.o
-head-$(CONFIG_40x)		:= arch/powerpc/kernel/head_40x.o
-head-$(CONFIG_44x)		:= arch/powerpc/kernel/head_44x.o
-head-$(CONFIG_PPC_85xx)	:= arch/powerpc/kernel/head_85xx.o
-
-head-$(CONFIG_PPC64)		+= arch/powerpc/kernel/entry_64.o
-head-$(CONFIG_PPC_FPU)		+= arch/powerpc/kernel/fpu.o
-head-$(CONFIG_ALTIVEC)		+= arch/powerpc/kernel/vector.o
-head-$(CONFIG_PPC_OF_BOOT_TRAMPOLINE)  += arch/powerpc/kernel/prom_init.o
-
 # Default to zImage, override when needed
 all: zImage
 
diff --git a/arch/powerpc/boot/wrapper b/arch/powerpc/boot/wrapper
index 55978f32fa77..5bdd4dd20bbb 100755
--- a/arch/powerpc/boot/wrapper
+++ b/arch/powerpc/boot/wrapper
@@ -433,7 +433,7 @@ fi
 # Extract kernel version information, some platforms want to include
 # it in the image header
 version=`${CROSS}strings "$kernel" | grep '^Linux version [-0-9.]' | \
-    cut -d' ' -f3`
+    head -n1 | cut -d' ' -f3`
 if [ -n "$version" ]; then
     uboot_version="-n Linux-$version"
 fi
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index 1f121c188805..68ea30fb373e 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -116,12 +116,12 @@ obj-$(CONFIG_PPC_E500)		+= cpu_setup_e500.o
 obj-$(CONFIG_PPC_DOORBELL)	+= dbell.o
 obj-$(CONFIG_JUMP_LABEL)	+= jump_label.o
 
-extra-$(CONFIG_PPC64)		:= head_64.o
-extra-$(CONFIG_PPC_BOOK3S_32)	:= head_book3s_32.o
-extra-$(CONFIG_40x)		:= head_40x.o
-extra-$(CONFIG_44x)		:= head_44x.o
-extra-$(CONFIG_PPC_85xx)	:= head_85xx.o
-extra-$(CONFIG_PPC_8xx)		:= head_8xx.o
+obj-$(CONFIG_PPC64)		+= head_64.o
+obj-$(CONFIG_PPC_BOOK3S_32)	+= head_book3s_32.o
+obj-$(CONFIG_40x)		+= head_40x.o
+obj-$(CONFIG_44x)		+= head_44x.o
+obj-$(CONFIG_PPC_8xx)		+= head_8xx.o
+obj-$(CONFIG_FSL_BOOKE)		+= head_85xx.o
 extra-y				+= vmlinux.lds
 
 obj-$(CONFIG_RELOCATABLE)	+= reloc_$(BITS).o
@@ -196,10 +196,10 @@ KCOV_INSTRUMENT_paca.o := n
 CFLAGS_setup_64.o		+= -fno-stack-protector
 CFLAGS_paca.o			+= -fno-stack-protector
 
-extra-$(CONFIG_PPC_FPU)		+= fpu.o
-extra-$(CONFIG_ALTIVEC)		+= vector.o
-extra-$(CONFIG_PPC64)		+= entry_64.o
-extra-$(CONFIG_PPC_OF_BOOT_TRAMPOLINE)	+= prom_init.o
+obj-$(CONFIG_PPC_FPU)		+= fpu.o
+obj-$(CONFIG_ALTIVEC)		+= vector.o
+obj-$(CONFIG_PPC64)		+= entry_64.o
+obj-$(CONFIG_PPC_OF_BOOT_TRAMPOLINE)	+= prom_init.o
 
 extra-$(CONFIG_PPC_OF_BOOT_TRAMPOLINE)	+= prom_init_check