Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild

Pull kbuild updates from Michal Marek:

 - several cleanups in kbuild

 - serialize multiple *config targets so that 'make defconfig kvmconfig'
   works

 - The cc-ifversion macro got support for an else-branch

* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  kbuild,gcov: simplify kernel/gcov/Makefile more
  kbuild: allow cc-ifversion to have the argument for false condition
  kbuild,gcov: simplify kernel/gcov/Makefile
  kbuild,gcov: remove unnecessary workaround
  kbuild: do not add $(call ...) to invoke cc-version or cc-fullversion
  kbuild: fix cc-ifversion macro
  kbuild: drop $(version_h) from MRPROPER_FILES
  kbuild: use mixed-targets when two or more config targets are given
  kbuild: remove redundant line from bounds.h/asm-offsets.h
  kbuild: merge bounds.h and asm-offsets.h rules
  kbuild: Drop support for clean-rule

1 files changed, 5 insertions, 31 deletions

diff --git a/kernel/gcov/Makefile b/kernel/gcov/Makefile
index 52aa7e8de927..752d6486b67e 100644
--- a/kernel/gcov/Makefile
+++ b/kernel/gcov/Makefile
@@ -1,33 +1,7 @@
 ccflags-y := -DSRCTREE='"$(srctree)"' -DOBJTREE='"$(objtree)"'
 
-# if-lt
-# Usage VAR := $(call if-lt, $(a), $(b))
-# Returns 1 if (a < b)
-if-lt = $(shell [ $(1) -lt $(2) ] && echo 1)
-
-ifeq ($(CONFIG_GCOV_FORMAT_3_4),y)
-  cc-ver := 0304
-else ifeq ($(CONFIG_GCOV_FORMAT_4_7),y)
-  cc-ver := 0407
-else
-# Use cc-version if available, otherwise set 0
-#
-# scripts/Kbuild.include, which contains cc-version function, is not included
-# during make clean "make -f scripts/Makefile.clean obj=kernel/gcov"
-# Meaning cc-ver is empty causing if-lt test to fail with
-# "/bin/sh: line 0: [: -lt: unary operator expected" error mesage.
-# This has no affect on the clean phase, but the error message could be
-# confusing/annoying. So this dummy workaround sets cc-ver to zero if cc-version
-# is not available. We can probably move if-lt to Kbuild.include, so it's also
-# not defined during clean or to include Kbuild.include in
-# scripts/Makefile.clean. But the following workaround seems least invasive.
-  cc-ver := $(if $(call cc-version),$(call cc-version),0)
-endif
-
-obj-$(CONFIG_GCOV_KERNEL) := base.o fs.o
-
-ifeq ($(call if-lt, $(cc-ver), 0407),1)
-  obj-$(CONFIG_GCOV_KERNEL) += gcc_3_4.o
-else
-  obj-$(CONFIG_GCOV_KERNEL) += gcc_4_7.o
-endif
+obj-y := base.o fs.o
+obj-$(CONFIG_GCOV_FORMAT_3_4) += gcc_3_4.o
+obj-$(CONFIG_GCOV_FORMAT_4_7) += gcc_4_7.o
+obj-$(CONFIG_GCOV_FORMAT_AUTODETECT) += $(call cc-ifversion, -lt, 0407, \
+                                                        gcc_3_4.o, gcc_4_7.o)