Masahiro Yamada 4c56eb33e6 kbuild: keep symbols for symbol_get() even with CONFIG_TRIM_UNUSED_KSYMS ... Linus observed that the symbol_request(utf8_data_table) call fails when CONFIG_UNICODE=y and CONFIG_TRIM_UNUSED_KSYMS=y. symbol_get() relies on the symbol data being present in the ksymtab for symbol lookups. However, EXPORT_SYMBOL_GPL(utf8_data_table) is dropped due to CONFIG_TRIM_UNUSED_KSYMS, as no module references it in this case. Probably, this has been broken since commit dbacb0ef67 ("kconfig option for TRIM_UNUSED_KSYMS"). This commit addresses the issue by leveraging modpost. Symbol names passed to symbol_get() are recorded in the special .no_trim_symbol section, which is then parsed by modpost to forcibly keep such symbols. The .no_trim_symbol section is discarded by the linker scripts, so there is no impact on the size of the final vmlinux or modules. This commit cannot resolve the issue for direct calls to __symbol_get() because the symbol name is not known at compile-time. Although symbol_get() may eventually be deprecated, this workaround should be good enough meanwhile. Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>		2025-02-06 01:08:58 +09:00
..
atomic	locking/atomic: scripts: fix ${atomic}_sub_and_test() kerneldoc	2024-06-05 15:52:34 +02:00
basic	fixdep: use xmalloc()	2024-09-01 20:34:49 +09:00
clang-tools	gen_compile_commands: fix invalid escape sequence warning	2024-02-15 06:57:19 +09:00
coccinelle	coccinelle: misc: add secs_to_jiffies script	2025-01-12 20:21:01 -08:00
dtc	dt: dt-extract-compatibles: Extract compatibles from function parameters	2024-09-05 10:17:03 -05:00
dummy-tools
gcc-plugins	gcc-plugins: randstruct: Remove GCC 4.7 or newer requirement	2024-08-05 14:34:23 -07:00
gdb	scripts/gdb: fix aarch64 userspace detection in get_current_task	2025-02-01 03:53:24 -08:00
gendwarfksyms	gendwarfksyms: Add support for symbol type pointers	2025-01-11 01:25:26 +09:00
genksyms	genksyms: fix syntax error for attribute before init-declarator	2025-01-27 07:44:16 +09:00
include	scripts: import more list macros	2024-10-07 02:12:27 +09:00
ipe	scripts: ipe: polgen: remove redundant close and error exit path	2024-11-19 13:57:03 -08:00
kconfig	kconfig: fix memory leak in sym_warn_unmet_dep()	2025-01-30 08:43:12 +09:00
ksymoops
mod	kbuild: keep symbols for symbol_get() even with CONFIG_TRIM_UNUSED_KSYMS	2025-02-06 01:08:58 +09:00
package	kheaders: use 'tar' instead of 'cpio' for copying files	2025-01-10 23:01:22 +09:00
selinux	Remove stale generated 'genheaders' file	2025-01-31 19:49:17 -08:00
tracing
.gitignore	lib: packing: add pack_fields() and unpack_fields()	2024-12-11 20:13:00 -08:00
as-version.sh
asn1_compiler.c
bloat-o-meter
bootgraph.pl
bpf_doc.py	bpf: Allow specifying bpf_fastcall attribute for BPF helpers	2024-10-03 17:47:53 -07:00
build-version	kbuild: move init/build-version to scripts/	2024-07-16 01:08:37 +09:00
cc-can-link.sh
cc-version.sh
check-git
check-sysctl-docs	scripts: check-sysctl-docs: handle per-namespace sysctls	2024-02-23 12:13:09 +01:00
check-uapi.sh
check-variable-fonts.sh	docs: scripts/check-variable-fonts.sh: Improve commands for detection	2024-05-02 10:14:52 -06:00
check_extable.sh
checkdeclares.pl
checkincludes.pl
checkkconfigsymbols.py
checkpatch.pl	Mainly individually changelogged singleton patches. The patch series in	2025-01-26 17:50:53 -08:00
checkstack.pl
checksyscalls.sh
checktransupdate.py	scripts: fix all issues reported by pylint	2024-07-29 15:34:22 -06:00
checkversion.pl
cleanfile
cleanpatch
coccicheck	kbuild: change working directory to external module directory with M=	2024-11-28 08:10:23 +09:00
config
const_structs.checkpatch	const_structs.checkpatch: add ctl_table	2024-10-09 13:39:11 +02:00
decode_stacktrace.sh	scripts/decode_stacktrace.sh: fix decoding of lines with an additional info	2025-01-12 19:03:34 -08:00
decodecode
depmod.sh	kbuild: add $(objtree)/ prefix to some in-kernel build artifacts	2024-11-27 09:38:27 +09:00
dev-needs.sh
diffconfig
documentation-file-ref-check
extract-ikconfig
extract-module-sig.pl
extract-sys-certs.pl
extract-vmlinux
extract_xc3028.pl
faddr2line	Revert "scripts/faddr2line: Check only two symbols when calculating symbol size"	2024-10-17 15:16:04 -07:00
file-size.sh
find-unused-docs.sh
gcc-x86_32-has-stack-protector.sh	kbuild: Fix '-S -c' in x86 stack protector scripts	2024-07-29 03:47:00 +09:00
gcc-x86_64-has-stack-protector.sh	kbuild: Fix '-S -c' in x86 stack protector scripts	2024-07-29 03:47:00 +09:00
gen-randstruct-seed.sh
gen_packed_field_checks.c	lib: packing: add pack_fields() and unpack_fields()	2024-12-11 20:13:00 -08:00
generate_builtin_ranges.awk	kbuild: generate offset range data for builtin modules	2024-09-20 09:21:43 +09:00
generate_initcall_order.pl
generate_rust_analyzer.py	rust: use host dylib naming convention to support macOS	2025-01-10 01:01:24 +01:00
generate_rust_target.rs	kbuild: rust: Enable KASAN support	2024-09-16 18:04:37 +02:00
get_abi.pl
get_dvb_firmware
get_feat.pl
get_maintainer.pl	get_maintainer: add --bug option to print bug reporting info	2024-08-26 16:10:12 -06:00
gfp-translate	scripts: fix gfp-translate after ___GFP_*_BITS conversion to an enum	2024-09-01 17:59:01 -07:00
git.orderFile
head-object-list.txt	openrisc: place exception table at the head of vmlinux	2024-12-10 12:04:19 +00:00
headerdep.pl
headers_install.sh	m68k: Avoid CONFIG_COLDFIRE switch in uapi header	2024-05-07 08:55:23 +10:00
insert-sys-cert.c
install.sh	kbuild: Create INSTALL_PATH directory if it does not exist	2024-07-20 13:34:54 +09:00
jobserver-exec
kallsyms.c	kallsyms: change overflow variable to bool type	2024-09-20 09:21:52 +09:00
Kbuild.include	kbuild: add $(objtree)/ prefix to some in-kernel build artifacts	2024-11-27 09:38:27 +09:00
Kconfig.include	kbuild: rust: add CONFIG_RUSTC_LLVM_VERSION	2024-10-13 22:22:28 +02:00
kernel-doc	scripts/kernel-doc: fix identifier parsing regex	2024-12-30 11:15:10 -07:00
ld-version.sh	kbuild: Make ld-version.sh more robust against version string changes	2024-07-15 03:13:32 +09:00
leaking_addresses.pl	leaking_addresses: Provide mechanism to scan binary files	2024-02-29 13:38:03 -08:00
Lindent
link-vmlinux.sh	kbuild/btf: Propagate CONFIG_WERROR to resolve_btfids	2024-12-10 17:57:42 +01:00
macro_checker.py	scripts: add macro_checker script to check unused parameters in macros	2024-09-01 20:43:28 -07:00
make_fit.py	scripts/make_fit: Support decomposing DTBs	2024-07-16 01:08:37 +09:00
Makefile	Kbuild updates for v6.14	2025-01-31 12:07:07 -08:00
Makefile.asm-headers	kbuild: fix rebuild of generic syscall headers	2024-07-18 10:01:55 -07:00
Makefile.autofdo	AutoFDO: Enable machine function split optimization for AutoFDO	2024-11-27 09:38:27 +09:00
Makefile.btf	kbuild,bpf: Pass make jobs' value to pahole	2024-11-11 20:00:21 -08:00
Makefile.build	kbuild: fix Clang LTO with CONFIG_OBJTOOL=n	2025-02-01 04:28:05 +09:00
Makefile.clang	sparc/build: Add SPARC target flags for compiling with clang	2024-11-16 09:52:56 +01:00
Makefile.clean	kbuild: change working directory to external module directory with M=	2024-11-28 08:10:23 +09:00
Makefile.compiler	kbuild: change working directory to external module directory with M=	2024-11-28 08:10:23 +09:00
Makefile.debug	kbuild: rust: use -Zdebuginfo-compression	2024-04-02 17:41:22 +02:00
Makefile.defconf	kbuild: suppress stdout from merge_config for silent builds	2025-01-10 23:01:21 +09:00
Makefile.dtbinst	kbuild: Install dtb files as 0644 in Makefile.dtbinst	2024-06-26 00:18:57 +09:00
Makefile.dtbs	kbuild: move non-boot built-in DTBs to .rodata section	2024-09-30 20:42:52 +09:00
Makefile.extrawarn	scripts/Makefile.extrawarn: Do not show clang's non-kprintf warnings at W=1	2025-02-06 00:58:02 +09:00
Makefile.gcc-plugins
Makefile.headersinst
Makefile.host	kbuild: support building external modules in a separate build directory	2024-11-28 08:11:55 +09:00
Makefile.kasan	kbuild: rust: Enable KASAN support	2024-09-16 18:04:37 +02:00
Makefile.kcov
Makefile.kcsan
Makefile.kmsan
Makefile.lib	kbuild: fix Clang LTO with CONFIG_OBJTOOL=n	2025-02-01 04:28:05 +09:00
Makefile.modfinal	kbuild: re-enable KCSAN for autogenerated *.mod.c intermediaries	2024-11-28 08:11:55 +09:00
Makefile.modinst	kbuild: Fix signing issue for external modules	2025-01-18 08:52:09 +09:00
Makefile.modpost	modpost: Allow extended modversions without basic MODVERSIONS	2025-01-11 02:36:32 +09:00
Makefile.package	kbuild: rpm-pkg: disable kernel-devel package when cross-compiling	2024-10-31 21:40:46 +09:00
Makefile.propeller	kbuild: Fix Propeller build option	2024-11-27 09:38:27 +09:00
Makefile.randstruct
Makefile.ubsan	ubsan: Reintroduce signed overflow sanitizer	2024-02-20 20:44:49 -08:00
Makefile.userprogs
Makefile.vdsoinst	more s390 updates for 6.10 merge window	2024-05-21 12:09:36 -07:00
Makefile.vmlinux	Kbuild updates for v6.13	2024-11-30 13:41:50 -08:00
Makefile.vmlinux_o	kbuild: generate offset range data for builtin modules	2024-09-20 09:21:43 +09:00
makelst
markup_oops.pl
min-tool-version.sh	rust: upgrade to Rust 1.78.0	2024-05-05 20:17:25 +02:00
misc-check
mkcompile_h
mksysmap	scripts/mksysmap: Fix escape chars '$'	2024-12-28 23:23:52 +09:00
mkuboot.sh
module-common.c	kbuild: compile constant module information only once	2024-09-07 17:24:08 +09:00
module.lds.S	kbuild: keep symbols for symbol_get() even with CONFIG_TRIM_UNUSED_KSYMS	2025-02-06 01:08:58 +09:00
modules-check.sh
nsdeps	scripts/nsdeps: get 'make nsdeps' working again	2024-12-03 08:22:25 -08:00
objdiff
objdump-func
orc_hash.sh
pahole-version.sh
parse-maintainers.pl
patch-kernel
profile2linkerlist.pl
prune-kernel
recordmcount.c
recordmcount.h
recordmcount.pl	riscv: remove MCOUNT_NAME workaround	2024-02-22 15:38:54 -08:00
relocs_check.sh
remove-stale-files	selinux: move genheaders to security/selinux/	2024-10-03 16:07:51 -04:00
rust_is_available.sh	rust: document bindgen 0.71.0 regression	2025-01-10 00:17:00 +01:00
rust_is_available_bindgen_0_66.h	rust: warn about bindgen versions 0.66.0 and 0.66.1	2024-07-10 10:28:52 +02:00
rust_is_available_bindgen_libclang.h
rust_is_available_bindgen_libclang_concat.h	rust: warn on bindgen < 0.69.5 and libclang >= 19.1	2024-11-12 21:26:54 +01:00
rust_is_available_test.py	rust: warn on bindgen < 0.69.5 and libclang >= 19.1	2024-11-12 21:26:54 +01:00
rustc-llvm-version.sh	kbuild: rust: avoid errors with old rustcs without LLVM patch version	2024-10-28 00:27:16 +01:00
rustc-version.sh	kbuild: rust: add CONFIG_RUSTC_VERSION	2024-09-05 22:44:18 +02:00
rustdoc_test_builder.rs
rustdoc_test_gen.rs
setlocalversion	setlocalversion: add -e option	2024-11-28 08:11:56 +09:00
show_delta
sign-file.c	sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3	2024-09-20 19:52:48 +03:00
sorttable.c	scripts/sorttable: Use a structure of function pointers for elf helpers	2025-01-10 07:59:04 -05:00
spdxcheck-test.sh
spdxcheck.py	scripts/spdxcheck: Handle license identifiers in Jinja comments	2025-01-08 15:38:33 +01:00
spdxexclude
spelling.txt	kernel-wide: add explicity||explicitly to spelling.txt	2025-01-12 20:21:06 -08:00
sphinx-pre-install	scripts: sphinx-pre-install: remove unnecessary double check for $cur_version	2024-09-05 14:32:36 -06:00
split-man.pl
ssl-common.h	sign-file,extract-cert: avoid using deprecated ERR_get_error_line()	2024-09-20 19:49:52 +03:00
stackdelta
stackusage
subarch.include	scripts: subarch.include: fix SUBARCH on macOS hosts	2024-09-10 13:56:37 +09:00
syscall.tbl	fs/xattr: add *at family syscalls	2024-11-06 12:59:44 -05:00
syscallhdr.sh
syscallnr.sh
syscalltbl.sh	x86/syscall: Mark exit[_group] syscall handlers __noreturn	2024-06-28 15:23:38 +02:00
tags.sh	Char/Misc/IIO driver updates for 6.14-rc1	2025-01-27 16:51:51 -08:00
tools-support-relr.sh
unifdef.c	scripts/unifdef: avoid constexpr keyword	2024-04-23 00:09:41 +09:00
ver_linux
verify_builtin_ranges.awk	scripts: add verifier script for builtin module range data	2024-09-20 09:21:52 +09:00
xen-hypercalls.sh
xz_wrap.sh	xz: adjust arch-specific options for better kernel compression	2024-09-01 20:43:27 -07:00