Alexey Gladkov 898490c010 moduleparam: Save information about built-in modules in separate file ... Problem: When a kernel module is compiled as a separate module, some important information about the kernel module is available via .modinfo section of the module. In contrast, when the kernel module is compiled into the kernel, that information is not available. Information about built-in modules is necessary in the following cases: 1. When it is necessary to find out what additional parameters can be passed to the kernel at boot time. 2. When you need to know which module names and their aliases are in the kernel. This is very useful for creating an initrd image. Proposal: The proposed patch does not remove .modinfo section with module information from the vmlinux at the build time and saves it into a separate file after kernel linking. So, the kernel does not increase in size and no additional information remains in it. Information is stored in the same format as in the separate modules (null-terminated string array). Because the .modinfo section is already exported with a separate modules, we are not creating a new API. It can be easily read in the userspace: $ tr '\0' '\n' < modules.builtin.modinfo ext4.softdep=pre: crc32c ext4.license=GPL ext4.description=Fourth Extended Filesystem ext4.author=Remy Card, Stephen Tweedie, Andrew Morton, Andreas Dilger, Theodore Ts'o and others ext4.alias=fs-ext4 ext4.alias=ext3 ext4.alias=fs-ext3 ext4.alias=ext2 ext4.alias=fs-ext2 md_mod.alias=block-major-9-* md_mod.alias=md md_mod.description=MD RAID framework md_mod.license=GPL md_mod.parmtype=create_on_open:bool md_mod.parmtype=start_dirty_degraded:int ... Co-Developed-by: Gleb Fotengauer-Malinovskiy <glebfm@altlinux.org> Signed-off-by: Gleb Fotengauer-Malinovskiy <glebfm@altlinux.org> Signed-off-by: Alexey Gladkov <gladkov.alexey@gmail.com> Acked-by: Jessica Yu <jeyu@kernel.org> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>		2019-05-07 21:50:24 +09:00
..
atomic	locking/atomics: Check atomic headers with sha1sum	2019-02-13 08:07:31 +01:00
basic	kbuild: simplify dependency generation for CONFIG_TRIM_UNUSED_KSYMS	2018-12-01 23:13:14 +09:00
coccinelle	scripts: coccinelle: Fix description of badty.cocci	2019-03-28 23:46:56 +09:00
dtc	of: add dtc annotations functionality to dtx_diff	2019-02-28 11:40:48 -06:00
gcc-plugins	increased structleak coverage	2019-03-09 09:06:15 -08:00
gdb	kbuild: use $(srctree) instead of KBUILD_SRC to check out-of-tree build	2019-04-02 23:28:04 +09:00
genksyms
kconfig	kconfig/[mn]conf: handle backspace (^H) key	2019-03-29 22:48:01 +09:00
ksymoops
mod	kbuild: modversions: Fix relative CRC byte order interpretation	2019-03-28 23:46:56 +09:00
package	kbuild: deb-pkg: avoid implicit effects	2019-03-17 12:56:23 +09:00
selinux	genheaders: %-<width>s had been there since v6; %-*s - since v7	2018-12-10 03:40:11 -05:00
tracing	scripts: Add Python 3 support to tracing/draw_functrace.py	2018-07-29 11:08:38 +09:00
.gitignore	scripts: remove unnecessary ihex2fw and check-lc_ctypes from .gitignore	2018-12-22 00:37:52 +09:00
adjust_autoksyms.sh	kbuild: source include/config/auto.conf instead of ${KCONFIG_CONFIG}	2019-03-14 02:39:11 +09:00
asn1_compiler.c	ASN.1: Remove unnecessary shadowed local variable	2018-10-29 00:19:41 +09:00
bin2c.c	kbuild: move bin2c back to scripts/ from scripts/basic/	2018-07-18 01:18:05 +09:00
bloat-o-meter	bloat-o-meter: ignore __addressable_ symbols	2018-12-28 12:11:44 -08:00
bootgraph.pl
bpf_helpers_doc.py
cc-can-link.sh	bpfilter: check compiler capability in Kconfig	2018-06-28 13:36:39 +09:00
check_extable.sh
checkincludes.pl
checkkconfigsymbols.py
checkpatch.pl	checkpatch: add %pt as a valid vsprintf extension	2019-03-29 10:01:37 -07:00
checkstack.pl	scripts/checkstack.pl: dynamic stack growth for aarch64	2018-12-28 12:11:44 -08:00
checksyscalls.sh	checksyscalls: fix up mq_timedreceive and stat exceptions	2019-02-19 21:27:53 +01:00
checkversion.pl
clang-version.sh	kbuild: update comment block of scripts/clang-version.sh	2019-03-04 22:34:54 +09:00
cleanfile
cleanpatch
coccicheck	coccicheck: return proper error code on fail	2018-08-14 08:58:56 +09:00
config
conmakehash.c
const_structs.checkpatch
decode_stacktrace.sh	scripts/decode_stacktrace.sh: handle RIP address with segment	2019-03-05 21:07:13 -08:00
decodecode	scripts/decodecode: set ARCH when running natively on arm/arm64	2018-12-28 12:11:44 -08:00
depmod.sh	kbuild: modules_install: warn when missing System.map file	2018-09-09 09:14:07 +09:00
diffconfig
documentation-file-ref-check	scripts/documentation-file-ref-check: ignore sched-pelt false positive	2018-07-02 11:25:00 -06:00
export_report.pl
extract_xc3028.pl
extract-cert.c
extract-ikconfig
extract-module-sig.pl
extract-sys-certs.pl
extract-vmlinux	extract-vmlinux: Check for uncompressed image as fallback	2018-10-17 08:18:01 +02:00
faddr2line	scripts/faddr2line: fix location of start_kernel in comment	2018-11-18 10:15:09 -08:00
file-size.sh
find-unused-docs.sh
gcc-goto.sh	jump_label: move 'asm goto' support test to Kconfig	2019-01-06 09:46:51 +09:00
gcc-ld
gcc-plugin.sh
gcc-version.sh	kbuild: clean up scripts/gcc-version.sh	2019-03-04 22:35:04 +09:00
gcc-x86_32-has-stack-protector.sh	stack-protector: test compiler capability in Kconfig and drop AUTO mode	2018-06-08 18:56:00 +09:00
gcc-x86_64-has-stack-protector.sh	stack-protector: Fix test with 32-bit userland and CONFIG_64BIT=y	2018-06-25 23:21:13 +09:00
gen_compile_commands.py	scripts: add a tool to produce a compile_commands.json file	2018-12-19 23:41:36 +09:00
gen_ksymdeps.sh	kbuild: simplify dependency generation for CONFIG_TRIM_UNUSED_KSYMS	2018-12-01 23:13:14 +09:00
get_dvb_firmware
get_maintainer.pl	get_maintainer: allow option --mpath <directory> to read all files in <directory>	2018-08-22 10:52:48 -07:00
gfp-translate
headerdep.pl
headers_check.pl
headers_install.sh
headers.sh
insert-sys-cert.c
kallsyms.c	Kbuild updates for v5.1	2019-03-10 17:48:21 -07:00
Kbuild.include	kbuild: remove cc-version macro	2019-03-04 22:34:59 +09:00
Kconfig.include	kbuild: clean up scripts/gcc-version.sh	2019-03-04 22:35:04 +09:00
kernel-doc	kernel-doc: suppress 'not described' warnings for embedded struct fields	2019-01-16 15:04:01 -07:00
ld-version.sh
leaking_addresses.pl	leaking_addresses: Completely remove --version flag	2019-03-07 08:53:18 +11:00
Lindent
link-vmlinux.sh	moduleparam: Save information about built-in modules in separate file	2019-05-07 21:50:24 +09:00
Makefile	scripts/gdb: do not descend into scripts/gdb from scripts	2019-02-27 21:40:09 +09:00
Makefile.asm-generic	kbuild: force all architectures except um to include mandatory-y	2019-03-17 12:56:32 +09:00
Makefile.build	kbuild: use $(srctree) instead of KBUILD_SRC to check out-of-tree build	2019-04-02 23:28:04 +09:00
Makefile.clean	kbuild: remove deprecated host-progs variable	2018-08-09 21:51:17 +09:00
Makefile.dtbinst
Makefile.extrawarn	Kbuild updates for v4.20 (2nd)	2018-11-03 10:47:33 -07:00
Makefile.gcc-plugins	gcc-plugins: structleak: Generalize to all variable types	2019-03-04 09:29:41 -08:00
Makefile.headersinst	kbuild: generate asm-generic wrappers if mandatory headers are missing	2019-01-06 09:46:51 +09:00
Makefile.host	kbuild: use $(srctree) instead of KBUILD_SRC to check out-of-tree build	2019-04-02 23:28:04 +09:00
Makefile.kasan	kasan: remove use after scope bugs detection.	2019-03-05 21:07:13 -08:00
Makefile.kcov	kcov: test compiler capability in Kconfig and correct dependency	2018-06-11 09:14:08 +09:00
Makefile.lib	kbuild: use $(srctree) instead of KBUILD_SRC to check out-of-tree build	2019-04-02 23:28:04 +09:00
Makefile.modbuiltin	kbuild: use $(srctree) instead of KBUILD_SRC to check out-of-tree build	2019-04-02 23:28:04 +09:00
Makefile.modinst	Revert "modsign: Abort modules_install when signing fails"	2019-03-17 12:56:31 +09:00
Makefile.modpost	modpost: make KBUILD_MODPOST_WARN also configurable for external modules	2019-04-11 23:11:51 +09:00
Makefile.modsign	kbuild: remove duplicated comments about PHONY	2018-07-06 22:04:03 +09:00
Makefile.ubsan	lib/ubsan: remove null-pointer checks	2018-08-10 20:19:58 -07:00
makelst
markup_oops.pl
mkcompile_h	kbuild: remove unnecessary in-subshell execution	2019-01-28 09:11:17 +09:00
mkmakefile	kbuild: mkmakefile: generate a simple wrapper of top Makefile	2019-04-02 23:27:38 +09:00
mksysmap
mkuboot.sh
module-common.lds
namespace.pl
objdiff
parse-maintainers.pl
patch-kernel
pnmtologo.c
profile2linkerlist.pl
prune-kernel
recordmcount.c	scripts/recordmcount.{c,pl}: support -ffunction-sections .text.* section names	2018-12-08 20:54:08 -05:00
recordmcount.h	scripts: Fixed printf format mismatch	2018-05-29 22:04:12 +09:00
recordmcount.pl	scripts: override locale from environment when running recordmcount.pl	2019-05-03 23:05:01 +09:00
setlocalversion	scripts/setlocalversion: Improve -dirty check with git-status --no-optional-locks	2018-11-21 23:57:33 +09:00
show_delta
sign-file.c
sortextable.c
sortextable.h
spdxcheck-test.sh	scripts: add spdxcheck.py self test	2018-12-28 12:11:44 -08:00
spdxcheck.py	scripts/spdxcheck.py: fix C++ comment style detection	2019-02-22 08:47:05 -07:00
spelling.txt	scripts/spelling.txt: add more spellings to spelling.txt	2019-03-07 18:31:59 -08:00
sphinx-pre-install
split-man.pl
stackdelta
stackusage
subarch.include	selftests: add headers_install to lib.mk	2018-09-05 08:12:09 -06:00
tags.sh	scripts/tags.sh: fix direct execution of scripts/tags.sh	2019-05-03 23:05:01 +09:00
unifdef.c	unifdef: use memcpy instead of strncpy	2018-11-30 14:45:01 -08:00
ver_linux	ver_linux: Assign constant RE to variable name for clarity	2019-01-22 13:34:35 +01:00
xen-hypercalls.sh
xz_wrap.sh