From: Rong Xu <xur@google.com>

ChangeLog:

V7: (1) Resolved a conflict by rebasing to kbuild/kbuild-next-unstable.
    (2) Separated the '--thin' to 'T' change into its own patch to
        preserve Masahiro's original version.
V6: Change '--thin' back to 'T' in Makefile.vmlinux_a to fix
    reported the build error from old ar.
V5: Handle single quote escaping in echo _c_flags to fix
    Piotr Gorski's reported error.

V4: This is based on the reimplementation provided by Masahiro Yamada
on May 26. The difference is that this version now saves the compiler
flags (_c_flags) from the Front-End (FE) compilation and re-uses them
for the subsequent Back-End (BE) compilation.

Rong Xu (3):
  kbuild: move vmlinux.a build rule to scripts/Makefile.vmlinux_a
  kbuild: change --thin back to 'T' in $(AR)
  kbuild: distributed build support for Clang ThinLTO

 .gitignore                 |  2 +
 Makefile                   | 25 +++++-------
 arch/Kconfig               | 19 +++++++++
 scripts/Makefile.lib       |  7 ++++
 scripts/Makefile.thinlto   | 40 ++++++++++++++++++
 scripts/Makefile.vmlinux_a | 83 ++++++++++++++++++++++++++++++++++++++
 scripts/mod/modpost.c      | 15 +++++--
 7 files changed, 174 insertions(+), 17 deletions(-)
 create mode 100644 scripts/Makefile.thinlto
 create mode 100644 scripts/Makefile.vmlinux_a


base-commit: dcc99abebfa1e9ca70f8af8695b6682ad7597bf2
-- 
2.53.0.1018.g2bb0e51243-goog