Merge tag 'kbuild-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy...

Pull Kbuild updates from Masahiro Yamada:

 - Clean up Makefiles and scripts

 - Improve clang support

 - Remove unneeded genhdr-y syntax

 - Remove unneeded cc-option-align macro

 - Introduce __cc-option macro and use it to fix x86 boot code compiler
   flags

* tag 'kbuild-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  kbuild: improve comments on KBUILD_SRC
  x86/build: Specify stack alignment for clang
  x86/build: Use __cc-option for boot code compiler options
  kbuild: Add __cc-option macro
  kbuild: remove cc-option-align
  kbuild: replace genhdr-y with generated-y
  kbuild: clang: Disable 'address-of-packed-member' warning
  kbuild: remove duplicated arch/*/include/generated/uapi include path
  kbuild: speed up checksyscalls.sh
  kbuild: simplify silent build (-s) detection

diff --cc Documentation/kbuild/makefiles.txt
Simple merge

diff --cc Makefile
Simple merge

diff --cc arch/arm/include/uapi/asm/Kbuild
index e9b098d6b7668341cf14b169defe2a899854aabc,424935e4515dd6fb8a9287c86538644f8919c710..5fb3368e70cbc86545354eb6f98ff93965940bee
--- 1/arch/arm/include/uapi/asm/Kbuild
--- 2/arch/arm/include/uapi/asm/Kbuild
+++ b/arch/arm/include/uapi/asm/Kbuild
@@@ -1,8 -1,6 +1,8 @@@
  # UAPI Header export list
  include include/uapi/asm-generic/Kbuild.asm
  
- genhdr-y += unistd-common.h
- genhdr-y += unistd-oabi.h
- genhdr-y += unistd-eabi.h
+ generated-y += unistd-common.h
+ generated-y += unistd-oabi.h
+ generated-y += unistd-eabi.h
 +
 +generic-y += siginfo.h

diff --cc arch/x86/Makefile
Simple merge