Sami Tolvanen fbe078d397 kbuild: lto: add a default list of used symbols ... With CONFIG_LTO_CLANG, LLVM bitcode has not yet been compiled into a binary when the .mod files are generated, which means they don't yet contain references to certain symbols that will be present in the final binaries. This includes intrinsic functions, such as memcpy, memmove, and memset [1], and stack protector symbols [2]. This change adds a default symbol list to use with CONFIG_TRIM_UNUSED_KSYMS when Clang's LTO is used. [1] https://llvm.org/docs/LangRef.html#standard-c-c-library-intrinsics [2] https://llvm.org/docs/LangRef.html#llvm-stackprotector-intrinsic Signed-off-by: Sami Tolvanen <samitolvanen@google.com> Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20201211184633.3213045-7-samitolvanen@google.com		2021-01-14 08:21:09 -08:00
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atomic	locking/atomics: Regenerate the atomics-check SHA1's	2020-11-07 13:20:41 +01:00
basic	…
clang-tools	…
coccinelle	coccinnelle: Remove ptr_ret script	2020-12-15 20:55:19 +01:00
dtc	…
dummy-tools	…
gcc-plugins	gcc-plugins: simplify GCC plugin-dev capability test	2020-12-04 14:09:55 -08:00
gdb	scripts/gdb/tasks: add headers and improve spacing format	2020-10-16 11:11:22 -07:00
genksyms	genksyms: Ignore module scoped _Static_assert()	2020-12-21 13:57:08 +09:00
kconfig	kconfig: fix return value of do_error_if()	2020-12-21 14:48:54 +09:00
ksymoops	…
mod	Kbuild updates for v5.11	2020-12-22 14:02:39 -08:00
package	builddeb: Fix rootless build in setuid/setgid directory	2020-11-02 11:31:00 +09:00
selinux	…
tracing	tweewide: Fix most Shebang lines	2020-12-08 23:30:04 +09:00
.gitignore	…
Kbuild.include	kbuild: remove leftover comment for filechk utility	2020-10-21 00:28:53 +09:00
Kconfig.include	…
Lindent	…
Makefile	…
Makefile.asm-generic	…
Makefile.build	kbuild: lto: fix module versioning	2021-01-14 08:21:08 -08:00
Makefile.clean	…
Makefile.dtbinst	…
Makefile.extrawarn	Makefile.extrawarn: remove -Wnested-externs warning	2020-12-08 23:30:05 +09:00
Makefile.gcc-plugins	…
Makefile.headersinst	…
Makefile.host	…
Makefile.kasan	…
Makefile.kcov	…
Makefile.kcsan	Kbuild updates for v5.10	2020-10-22 13:13:57 -07:00
Makefile.lib	kasan, arm64: expand CONFIG_KASAN checks	2020-12-22 12:55:08 -08:00
Makefile.modfinal	kbuild: add support for Clang LTO	2021-01-14 08:21:08 -08:00
Makefile.modinst	…
Makefile.modpost	kbuild: lto: fix module versioning	2021-01-14 08:21:08 -08:00
Makefile.modsign	…
Makefile.package	…
Makefile.ubsan	ubsan: move cc-option tests into Kconfig	2020-12-15 22:46:18 -08:00
Makefile.userprogs	…
adjust_autoksyms.sh	…
asn1_compiler.c	…
bin2c.c	…
bloat-o-meter	tweewide: Fix most Shebang lines	2020-12-08 23:30:04 +09:00
bootgraph.pl	…
bpf_helpers_doc.py	bpf: Add a bpf_sock_from_file helper	2020-12-04 22:32:40 +01:00
cc-can-link.sh	…
check-sysctl-docs	…
check_extable.sh	…
checkincludes.pl	…
checkkconfigsymbols.py	…
checkpatch.pl	checkpatch: prefer strscpy to strlcpy	2020-12-29 15:36:49 -08:00
checkstack.pl	…
checksyscalls.sh	…
checkversion.pl	…
clang-version.sh	…
cleanfile	…
cleanpatch	…
coccicheck	scripts: coccicheck: Correct usage of make coccicheck	2020-12-24 12:59:43 +01:00
config	tweewide: Fix most Shebang lines	2020-12-08 23:30:04 +09:00
const_structs.checkpatch	const_structs.checkpatch: add pinctrl_ops and pinmux_ops	2020-10-16 11:11:21 -07:00
decode_stacktrace.sh	…
decodecode	…
depmod.sh	depmod: handle the case of /sbin/depmod without /sbin in PATH	2021-01-01 12:26:39 -08:00
dev-needs.sh	…
diffconfig	tweewide: Fix most Shebang lines	2020-12-08 23:30:04 +09:00
documentation-file-ref-check	…
export_report.pl	…
extract-cert.c	…
extract-ikconfig	…
extract-module-sig.pl	…
extract-sys-certs.pl	…
extract-vmlinux	…
extract_xc3028.pl	…
faddr2line	…
file-size.sh	…
find-unused-docs.sh	…
gcc-goto.sh	…
gcc-ld	…
gcc-version.sh	…
gcc-x86_32-has-stack-protector.sh	…
gcc-x86_64-has-stack-protector.sh	…
gen_autoksyms.sh	…
gen_ksymdeps.sh	…
get_abi.pl	tweewide: Fix most Shebang lines	2020-12-08 23:30:04 +09:00
get_dvb_firmware	…
get_feat.pl	scripts: get_feat.pl: reduce table width for all features output	2020-12-04 14:34:27 -07:00
get_maintainer.pl	get_maintainer: exclude MAINTAINERS file(s) from --git-fallback	2020-10-16 11:11:19 -07:00
gfp-translate	…
headerdep.pl	…
headers_check.pl	…
headers_install.sh	…
insert-sys-cert.c	…
jobserver-exec	…
kallsyms.c	…
kernel-doc	scripts: kernel-doc: fix parsing function-like typedefs	2020-12-03 15:56:14 -07:00
ld-version.sh	…
leaking_addresses.pl	…
link-vmlinux.sh	kbuild: lto: fix module versioning	2021-01-14 08:21:08 -08:00
lld-version.sh	kbuild: Disable CONFIG_LD_ORPHAN_WARN for ld.lld 10.0.1	2020-12-01 22:46:06 +09:00
lto-used-symbollist.txt	kbuild: lto: add a default list of used symbols	2021-01-14 08:21:09 -08:00
makelst	…
markup_oops.pl	…
mkcompile_h	kbuild: Use uname for LINUX_COMPILE_HOST detection	2020-10-21 00:46:04 +09:00
mkmakefile	…
mksysmap	…
mkuboot.sh	…
module.lds.S	kbuild: lto: merge module sections	2021-01-14 08:21:08 -08:00
modules-check.sh	…
nsdeps	kbuild: do not use scripts/ld-version.sh for checking spatch version	2020-12-12 18:31:29 +01:00
objdiff	…
parse-maintainers.pl	…
patch-kernel	…
profile2linkerlist.pl	…
prune-kernel	…
recordmcount.c	…
recordmcount.h	…
recordmcount.pl	s390/ftrace: assume -mhotpatch or -mrecord-mcount always available	2020-11-20 19:19:11 +01:00
setlocalversion	…
show_delta	tweewide: Fix most Shebang lines	2020-12-08 23:30:04 +09:00
sign-file.c	…
sorttable.c	…
sorttable.h	…
spdxcheck-test.sh	…
spdxcheck.py	…
spelling.txt	…
sphinx-pre-install	tweewide: Fix most Shebang lines	2020-12-08 23:30:04 +09:00
split-man.pl	tweewide: Fix most Shebang lines	2020-12-08 23:30:04 +09:00
stackdelta	…
stackusage	…
subarch.include	…
tags.sh	…
tools-support-relr.sh	…
unifdef.c	…
ver_linux	…
xen-hypercalls.sh	…
xz_wrap.sh	…