[GIT PULL] Kbuild updates for v5.5-rc1

[Masahiro Yamada]

Hi Linus,

Please pull Kbuild updates for v5.5-rc1.

You will see merge conflicts in two files
when pulling it.


[1] Just delete include/Kbuild, please.
[2] The fix-up for drivers/gpu/drm/i915/Kconfig.debug
    is available in linux-next.

Thanks.



The following changes since commit 31f4f5b495a62c9a8b15b1c3581acd5efeb9af8c:

  Linux 5.4-rc7 (2019-11-10 16:17:15 -0800)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild.git
tags/kbuild-v5.5

for you to fetch changes up to d21b7e6b985c15ff75e8668b0282ec5104391901:

  MAINTAINERS: update Kbuild/Kconfig maintainer's email address
(2019-12-01 16:13:01 +0900)

----------------------------------------------------------------
Kbuild updates for v5.5

 - remove unneeded asm headers from hexagon, ia64

 - add 'dir-pkg' target, which works like 'tar-pkg' but skips archiving

 - add 'helpnewconfig' target, which shows help for new CONFIG options

 - support 'make nsdeps' for external modules

 - make rebuilds faster by deleting $(wildcard $^) checks

 - remove compile tests for kernel-space headers

 - refactor modpost to simplify modversion handling

 - make single target builds faster

 - optimize and clean up scripts/kallsyms.c

 - refactor various Makefiles and scripts

----------------------------------------------------------------
Alyssa Ross (1):
      kconfig: be more helpful if pkg-config is missing

Bhaskar Chowdhury (2):
      scripts: setlocalversion: replace backquote to dollar parenthesis
      scripts/ver_linux: add Bison and Flex to the checklist

Geert Uytterhoeven (2):
      kbuild: Wrap long "make help" text lines
      kbuild: Extend defconfig field size from 24 to 27

Laura Abbott (1):
      kconfig: Add option to get the full help text with listnewconfig

Masahiro Yamada (52):
      hexagon: remove asm/bitsperlong.h
      ia64: remove unneeded uapi asm-generic wrappers
      video/logo: simplify cmd_logo
      video/logo: move pnmtologo tool to drivers/video/logo/ from scripts/
      kconfig: split util.c out of parser.y
      kbuild: update comments in scripts/Makefile.modpost
      modpost: do not parse vmlinux for external module builds
      kbuild: do not read $(KBUILD_EXTMOD)/Module.symvers
      kheaders: remove unneeded 'cat' command piped to 'head' / 'tail'
      kheaders: optimize md5sum calculation for in-tree builds
      kheaders: optimize header copy for in-tree builds
      kheaders: remove the last bashism to allow sh to run it
      kheaders: explain why include/config/autoconf.h is excluded from md5sum
      kbuild: remove unneeded variable, single-all
      kbuild: reduce KBUILD_SINGLE_TARGETS as descending into subdirectories
      kbuild: make single target builds much faster
      asm-generic/export.h: make __ksymtab_* local symbols
      asm-generic/export.h: remove unneeded __kcrctab_* symbols
      modpost: do not invoke extra modpost for nsdeps
      modpost: free ns_deps_buf.p after writing ns_deps files
      modpost: dump missing namespaces into a single modules.nsdeps file
      scripts/nsdeps: support nsdeps for external module builds
      modpost: remove unneeded local variable in contains_namespace()
      kbuild: update compile-test header list for v5.5-rc1
      kbuild: drop $(wildcard $^) check in if_changed* for faster rebuild
      kbuild: rename any-prereq to newer-prereqs
      kbuild: remove header compile test
      kbuild: move headers_check rule to usr/include/Makefile
      modpost: add a helper to get data pointed by a symbol
      modpost: refactor namespace_from_kstrtabns() to not hard-code section name
      modpost: rename handle_modversions() to handle_symbol()
      modpost: stop symbol preloading for modversion CRC
      modpost: do not set ->preloaded for symbols from Module.symvers
      modpost: respect the previous export when 'exported twice' is warned
      kbuild: make single target builds even faster
      scripts/kallsyms: remove unneeded #ifndef ARRAY_SIZE
      scripts/kallsyms: fix definitely-lost memory leak
      scripts/kallsyms: shrink table before sorting it
      scripts/kallsyms: set relative_base more effectively
      scripts/kallsyms: remove redundant is_arm_mapping_symbol()
      scripts/kallsyms: remove unneeded length check for prefix matching
      scripts/kallsyms: add sym_name() to mitigate cast ugliness
      scripts/kallsyms: replace prefix_underscores_count() with strspn()
      scripts/kallsyms: make find_token() return (unsigned char *)
      scripts/kallsyms: add const qualifiers where possible
      scripts/kallsyms: skip ignored symbols very early
      scripts/kallsyms: move more patterns to the ignored_prefixes array
      scripts/kallsyms: move ignored symbol types to is_ignored_symbol()
      scripts/kallsyms: make check_symbol_range() void function
      scripts/kallsyms: put check_symbol_range() calls close together
      scripts/kallsyms: remove redundant initializers
      MAINTAINERS: update Kbuild/Kconfig maintainer's email address

Matteo Croce (1):
      kbuild: Add make dir-pkg build option

 .gitignore                                   |    2 +-
 Documentation/Makefile                       |    6 +-
 Documentation/core-api/symbol-namespaces.rst |    3 +
 Documentation/dontdiff                       |    1 +
 Documentation/kbuild/makefiles.rst           |   17 -
 Documentation/kbuild/modules.rst             |   13 +-
 MAINTAINERS                                  |    4 +-
 Makefile                                     |  121 ++-
 arch/hexagon/include/uapi/asm/bitsperlong.h  |   27 -
 arch/ia64/include/uapi/asm/errno.h           |    2 -
 arch/ia64/include/uapi/asm/ioctl.h           |    2 -
 arch/ia64/include/uapi/asm/ioctls.h          |    7 -
 drivers/gpu/drm/i915/Kconfig.debug           |    1 -
 drivers/video/logo/.gitignore                |    1 +
 drivers/video/logo/Makefile                  |   15 +-
 {scripts => drivers/video/logo}/pnmtologo.c  |    0
 include/Kbuild                               | 1185
-----------------------------
 include/asm-generic/export.h                 |    2 -
 init/Kconfig                                 |   22 +-
 kernel/Makefile                              |    2 +-
 kernel/gen_kheaders.sh                       |   64 +-
 lib/Kconfig.debug                            |   11 -
 scripts/.gitignore                           |    1 -
 scripts/Kbuild.include                       |   15 +-
 scripts/Makefile                             |    2 -
 scripts/Makefile.build                       |   20 +-
 scripts/Makefile.headersinst                 |   18 -
 scripts/Makefile.lib                         |   14 -
 scripts/Makefile.modpost                     |   18 +-
 scripts/Makefile.package                     |    6 +-
 scripts/kallsyms.c                           |  287 ++++---
 scripts/kconfig/Makefile                     |   10 +-
 scripts/kconfig/conf.c                       |   13 +-
 scripts/kconfig/mconf-cfg.sh                 |    3 +
 scripts/kconfig/nconf-cfg.sh                 |    3 +
 scripts/kconfig/parser.y                     |    1 -
 scripts/mod/modpost.c                        |  188 +++--
 scripts/mod/modpost.h                        |    5 +-
 scripts/nsdeps                               |   29 +-
 scripts/package/buildtar                     |    8 +-
 scripts/setlocalversion                      |   22 +-
 scripts/ver_linux                            |    2 +
 usr/include/Makefile                         |   19 +-
 43 files changed, 452 insertions(+), 1740 deletions(-)
 delete mode 100644 arch/hexagon/include/uapi/asm/bitsperlong.h
 delete mode 100644 arch/ia64/include/uapi/asm/errno.h
 delete mode 100644 arch/ia64/include/uapi/asm/ioctl.h
 delete mode 100644 arch/ia64/include/uapi/asm/ioctls.h
 rename {scripts => drivers/video/logo}/pnmtologo.c (100%)
 delete mode 100644 include/Kbuild


-- 
Best Regards
Masahiro Yamada