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Masahiro Yamada 41a77d43f3 kbuild: link lib-y objects to vmlinux forcibly even when CONFIG_MODULES=n 
Since commit 7273ad2b08 ("kbuild: link lib-y objects to vmlinux
forcibly when CONFIG_MODULES=y"), all objects from lib-y have been
forcibly linked to vmlinux when CONFIG_MODULES=y.

To simplify future changes, this commit makes all objects from lib-y
be linked regardless of the CONFIG_MODULES setting.

Most use cases (CONFIG_MODULES=y) are not affected by this change.

The vmlinux size with ARCH=arm allnoconfig, where CONFIG_MODULES=n,
increases as follows:

   text    data     bss     dec     hex filename
1368644  835104  206288 2410036  24c634 vmlinux.before
1379440  837064  206288 2422792  24f808 vmlinux.after

We no longer benefit from using static libraries, but the impact is
mitigated by supporting CONFIG_LD_DEAD_CODE_DATA_ELIMINATION.

For example, the size of vmlinux remains almost the same with ARCH=arm
tinyconfig, where CONFIG_MODULES=n and
CONFIG_LD_DEAD_CODE_DATA_ELIMINATION=y.

   text    data     bss     dec     hex filename
 455316   93404   15472  564192   89be0 vmlinux.before
 455312   93404   15472  564188   89bdc vmlinux.after

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2025-06-06 05:40:24 +09:00
arch Misc x86 fixes: 2025-05-17 08:43:51 -07:00
block SCSI fixes on 20250516 2025-05-16 10:28:22 -07:00
certs sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3 2024-09-20 19:52:48 +03:00
crypto crypto: scompress - increment scomp_scratch_users when already allocated 2025-04-25 10:33:30 +08:00
Documentation docs/core-api/symbol-namespaces: drop table of contents and section numbering 2025-05-25 18:16:10 +09:00
drivers dmaengine fixes for v6.15 2025-05-17 12:53:39 -07:00
fs two smb3 client fixes 2025-05-16 18:02:41 -07:00
include module: Provide EXPORT_SYMBOL_GPL_FOR_MODULES() helper 2025-05-25 18:12:14 +09:00
init init: remove unused CONFIG_CC_CAN_LINK_STATIC 2025-05-12 15:03:46 +09:00
io_uring io_uring/fdinfo: grab ctx->uring_lock around io_uring_show_fdinfo() 2025-05-14 07:15:28 -06:00
ipc treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
kernel tinyconfig: enable CONFIG_LD_DEAD_CODE_DATA_ELIMINATION 2025-06-06 05:40:24 +09:00
lib hardening fixes for v6.15-rc3 2025-04-18 13:20:20 -07:00
LICENSES LICENSES: add 0BSD license text 2024-09-01 20:43:24 -07:00
mm Nine singleton hotfixes, all MM. Four are cc:stable. 2025-05-17 10:56:52 -07:00
net net: devmem: fix kernel panic when netlink socket close after module unload 2025-05-15 08:05:32 -07:00
rust rust: clean Rust 1.88.0's clippy::uninlined_format_args lint 2025-05-07 00:11:47 +02:00
samples tracing: samples: Initialize trace_array_printk() with the correct function 2025-05-12 13:07:22 -04:00
scripts modpost: check forbidden MODULE_IMPORT_NS("module:") at compile time 2025-05-25 18:15:51 +09:00
security landlock: Improve bit operations in audit code 2025-05-12 11:38:53 +02:00
sound ALSA: usb-audio: Add sample rate quirk for Microdia JP001 USB Camera 2025-05-15 12:45:48 +02:00
tools Including fixes from Bluetooth and wireless. 2025-05-15 10:40:49 -07:00
usr usr/include: openrisc: don't HDRTEST bpf_perf_event.h 2025-05-12 15:03:17 +09:00
virt ARM: 2025-04-08 13:47:55 -07:00
.clang-format clang-format: Update the ForEachMacros list for v6.15-rc1 2025-04-13 11:03:59 +02:00
.clippy.toml rust: clean Rust 1.88.0's warning about clippy::disallowed_macros configuration 2025-05-07 00:11:47 +02:00
.cocciconfig
.editorconfig .editorconfig: remove trim_trailing_whitespace option 2024-06-13 16:47:52 +02:00
.get_maintainer.ignore MAINTAINERS: Retire Ralf Baechle 2024-11-12 15:48:59 +01:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore kbuild: Create intermediate vmlinux build with relocations preserved 2025-03-17 00:29:50 +09:00
.mailmap soc: fixes for 6.15, part 2 2025-05-14 09:11:05 -07:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: update SLAB ALLOCATOR maintainers 2025-04-17 20:10:06 -07:00
Kbuild drm: ensure drm headers are self-contained and pass kernel-doc 2025-02-12 10:44:43 +02:00
Kconfig io_uring: Rename KConfig to Kconfig 2025-02-19 14:53:27 -07:00
MAINTAINERS Nine singleton hotfixes, all MM. Four are cc:stable. 2025-05-17 10:56:52 -07:00
Makefile kbuild: link lib-y objects to vmlinux forcibly even when CONFIG_MODULES=n 2025-06-06 05:40:24 +09:00
README README: Fix spelling 2024-03-18 03:36:32 -06:00

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.