Commit 68e5c7d4 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'kbuild-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild 

Pull Kbuild updates from Masahiro Yamada:

 - Support cross-compiling linux-headers Debian package and kernel-devel
   RPM package

 - Add support for the linux-debug Pacman package

 - Improve module rebuilding speed by factoring out the common code to
   scripts/module-common.c

 - Separate device tree build rules into scripts/Makefile.dtbs

 - Add a new script to generate modules.builtin.ranges, which is useful
   for tracing tools to find symbols in built-in modules

 - Refactor Kconfig and misc tools

 - Update Kbuild and Kconfig documentation

* tag 'kbuild-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (51 commits)
  kbuild: doc: replace "gcc" in external module description
  kbuild: doc: describe the -C option precisely for external module builds
  kbuild: doc: remove the description about shipped files
  kbuild: doc: drop section numbering, use references in modules.rst
  kbuild: doc: throw out the local table of contents in modules.rst
  kbuild: doc: remove outdated description of the limitation on -I usage
  kbuild: doc: remove description about grepping CONFIG options
  kbuild: doc: update the description about Kbuild/Makefile split
  kbuild: remove unnecessary export of RUST_LIB_SRC
  kbuild: remove append operation on cmd_ld_ko_o
  kconfig: cache expression values
  kconfig: use hash table to reuse expressions
  kconfig: refactor expr_eliminate_dups()
  kconfig: add comments to expression transformations
  kconfig: change some expr_*() functions to bool
  scripts: move hash function from scripts/kconfig/ to scripts/include/
  kallsyms: change overflow variable to bool type
  kallsyms: squash output_address()
  kbuild: add install target for modules.builtin.ranges
  scripts: add verifier script for builtin module range data
  ...
parents 7f8de2bf fa911d1f

.gitignore

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@@ -47,7 +47,6 @@ 
*.so.dbg

*.su

*.symtypes

*.symversions

*.tab.[ch]

*.tar

*.xz
@@ -71,6 +70,7 @@ modules.order 
/Module.markers

/modules.builtin

/modules.builtin.modinfo

/modules.builtin.ranges

/modules.nsdeps



#
@@ -143,7 +143,6 @@ GTAGS 
# id-utils files

ID



*.orig

*~

\#*#

Documentation/dontdiff

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@@ -180,6 +180,7 @@ modpost 
modules-only.symvers

modules.builtin

modules.builtin.modinfo

modules.builtin.ranges

modules.nsdeps

modules.order

modversions.h*

Documentation/kbuild/kbuild.rst

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@@ -22,6 +22,11 @@ modules.builtin.modinfo 
This file contains modinfo from all modules that are built into the kernel.

Unlike modinfo of a separate module, all fields are prefixed with module name.



modules.builtin.ranges

----------------------

This file contains address offset ranges (per ELF section) for all modules

that are built into the kernel. Together with System.map, it can be used

to associate module names with symbols.



Environment variables

=====================
@@ -129,6 +134,11 @@ KBUILD_OUTPUT 
-------------

Specify the output directory when building the kernel.



This variable can also be used to point to the kernel output directory when

building external modules against a pre-built kernel in a separate build

directory. Please note that this does NOT specify the output directory for the

external modules themselves.



The output directory can also be specified using "O=...".



Setting "O=..." takes precedence over KBUILD_OUTPUT.

Documentation/kbuild/kconfig-language.rst

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@@ -70,7 +70,11 @@ applicable everywhere (see syntax). 


  Every menu entry can have at most one prompt, which is used to display

  to the user. Optionally dependencies only for this prompt can be added

  with "if".

  with "if". If a prompt is not present, the config option is a non-visible

  symbol, meaning its value cannot be directly changed by the user (such as

  altering the value in ``.config``) and the option will not appear in any

  config menus. Its value can only be set via "default" and "select" (see

  below).



- default value: "default" <expr> ["if" <expr>]

Documentation/kbuild/makefiles.rst

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@@ -1665,6 +1665,5 @@ Credits 
TODO

====



- Describe how kbuild supports shipped files with _shipped.

- Generating offset header files.

- Add more variables to chapters 7 or 9?