Lecopzer Chen 1d11053dc6 Kbuild: lto: fix module versionings mismatch in GNU make 3.X ... When building modules(CONFIG_...=m), I found some of module versions are incorrect and set to 0. This can be found in build log for first clean build which shows WARNING: EXPORT symbol "XXXX" [drivers/XXX/XXX.ko] version generation failed, symbol will not be versioned. But in second build(incremental build), the WARNING disappeared and the module version becomes valid CRC and make someone who want to change modules without updating kernel image can't insert their modules. The problematic code is + $(foreach n, $(filter-out FORCE,$^), \ + $(if $(wildcard $(n).symversions), \ + ; cat $(n).symversions >> $@.symversions)) For example: rm -f fs/notify/built-in.a.symversions ; rm -f fs/notify/built-in.a; \ llvm-ar cDPrST fs/notify/built-in.a fs/notify/fsnotify.o \ fs/notify/notification.o fs/notify/group.o ... `foreach n` shows nothing to `cat` into $(n).symversions because `if $(wildcard $(n).symversions)` return nothing, but actually they do exist during this line was executed. -rw-r--r-- 1 root root 168580 Jun 13 19:10 fs/notify/fsnotify.o -rw-r--r-- 1 root root 111 Jun 13 19:10 fs/notify/fsnotify.o.symversions The reason is the $(n).symversions are generated at runtime, but Makefile wildcard function expends and checks the file exist or not during parsing the Makefile. Thus fix this by use `test` shell command to check the file existence in runtime. Rebase from both: 1. [https://lore.kernel.org/lkml/20210616080252.32046-1-lecopzer.chen@mediatek.com/] 2. [https://lore.kernel.org/lkml/20210702032943.7865-1-lecopzer.chen@mediatek.com/] Fixes: 38e8918490 ("kbuild: lto: fix module versioning") Co-developed-by: Sami Tolvanen <samitolvanen@google.com> Signed-off-by: Lecopzer Chen <lecopzer.chen@mediatek.com> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>		2021-07-18 23:48:14 +09:00
..
atomic	locking/atomics: atomic-instrumented: simplify ifdeffery	2021-05-26 13:20:52 +02:00
basic	.gitignore: prefix local generated files with a slash	2021-05-02 00:43:35 +09:00
clang-tools	gen_compile_commands: prune some directories	2021-02-16 22:23:56 +09:00
coccinelle	coccinelle: api: remove kobj_to_dev.cocci script	2021-06-21 20:45:49 +02:00
dtc	.gitignore: prefix local generated files with a slash	2021-05-02 00:43:35 +09:00
dummy-tools	kbuild: dummy-tools: adjust to stricter stackprotector check	2021-05-17 12:10:03 +09:00
gcc-plugins	.gitignore: prefix local generated files with a slash	2021-05-02 00:43:35 +09:00
gdb	scripts/gdb: add lx_current support for arm64	2021-05-07 00:26:33 -07:00
genksyms	.gitignore: prefix local generated files with a slash	2021-05-02 00:43:35 +09:00
kconfig	Kbuild updates for v5.14	2021-07-10 11:01:38 -07:00
ksymoops
mod	kbuild: modpost: Explicitly warn about unprototyped symbols	2021-06-17 10:01:05 +09:00
package	kbuild: buildtar: add riscv support	2021-03-29 23:13:30 -07:00
selinux	scripts/selinux,selinux: update mdp to enable policy capabilities	2020-08-17 20:42:00 -04:00
tracing	tweewide: Fix most Shebang lines	2020-12-08 23:30:04 +09:00
.gitignore	.gitignore: prefix local generated files with a slash	2021-05-02 00:43:35 +09:00
adjust_autoksyms.sh	kbuild: do not include include/config/auto.conf from adjust_autoksyms.sh	2021-02-28 15:22:02 +09:00
as-version.sh	kbuild: check the minimum assembler version in Kconfig	2021-04-25 05:14:41 +09:00
asn1_compiler.c
bin2c.c
bloat-o-meter	scripts: switch explicitly to Python 3	2021-01-22 06:34:44 +09:00
bootgraph.pl
bpf_doc.py	scripts/bpf: Add syscall commands printer	2021-03-04 18:39:45 -08:00
cc-can-link.sh
cc-version.sh	kbuild: collect minimum tool versions into scripts/min-tool-version.sh	2021-04-25 05:14:26 +09:00
check-sysctl-docs
check_extable.sh
checkdeclares.pl	scripts: a new script for checking duplicate struct declaration	2021-04-30 11:20:35 -07:00
checkincludes.pl
checkkconfigsymbols.py	kconfig: remove '---help---' support	2020-08-14 13:30:03 +09:00
checkpatch.pl	checkpatch: do not complain about positive return values starting with EPOLL	2021-07-01 11:06:06 -07:00
checkstack.pl
checksyscalls.sh	arch, mm: wire up memfd_secret system call where relevant	2021-07-08 11:48:21 -07:00
checkversion.pl
cleanfile
cleanpatch
coccicheck	scripts: coccicheck: fix troubles on non-English builds	2021-05-18 11:09:59 +02:00
config	kconfig: config script: add a little user help	2021-01-04 10:38:11 +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	scripts/decode_stacktrace.sh: indicate 'auto' can be used for base path	2021-07-08 11:48:22 -07:00
decodecode	scripts/decodecode: add the capability to supply the program counter	2020-10-13 18:38:26 -07:00
depmod.sh	depmod: handle the case of /sbin/depmod without /sbin in PATH	2021-01-01 12:26:39 -08:00
dev-needs.sh	scripts/dev-needs: Add script to list device dependencies	2020-09-04 18:19:37 +02:00
diffconfig	scripts: switch explicitly to Python 3	2021-01-22 06:34:44 +09:00
documentation-file-ref-check	documentation-file-ref-check: Make git check work for multiple working directories	2021-06-04 11:20:52 -06:00
export_report.pl
extract-cert.c	extract-cert: add static to local data	2020-08-18 20:16:46 +09:00
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-x86_32-has-stack-protector.sh	x86/stackprotector/32: Make the canary into a regular percpu variable	2021-03-08 13:19:05 +01:00
gcc-x86_64-has-stack-protector.sh
gen_autoksyms.sh	kbuild: fix UNUSED_KSYMS_WHITELIST for Clang LTO	2021-02-28 15:19:21 +09:00
gen_ksymdeps.sh
generate_initcall_order.pl	init: lto: ensure initcall ordering	2021-01-14 08:21:09 -08:00
get_abi.pl	scripts: get_abi: ignore code blocks for cross-references	2021-03-31 13:53:16 -06:00
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	Merge branch 'work.fdpic' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2020-08-07 13:29:39 -07:00
insert-sys-cert.c
jobserver-exec	scripts/jobserver-exec: Fix a typo ("envirnoment")	2021-05-17 12:10:03 +09:00
kallsyms.c	kallsyms: fix nonconverging kallsyms table with lld	2021-02-05 17:53:28 +09:00
Kbuild.include	kbuild: sink stdout from cmd for silent build	2021-05-27 04:01:50 +09:00
Kconfig.include	kbuild: check the minimum assembler version in Kconfig	2021-04-25 05:14:41 +09:00
kernel-doc	scripts: kernel-doc: reduce repeated regex expressions into variables	2021-05-17 11:21:16 -06:00
ld-version.sh	kbuild: collect minimum tool versions into scripts/min-tool-version.sh	2021-04-25 05:14:26 +09:00
leaking_addresses.pl
Lindent
link-vmlinux.sh	Kbuild updates for v5.14	2021-07-10 11:01:38 -07:00
Makefile	Fix CVE-2020-26541	2021-04-26 08:38:10 -07:00
Makefile.asm-generic	kbuild: prefix $(srctree)/ to some included Makefiles	2021-03-15 19:20:48 +09:00
Makefile.build	Kbuild: lto: fix module versionings mismatch in GNU make 3.X	2021-07-18 23:48:14 +09:00
Makefile.clean	kbuild: prefix $(srctree)/ to some included Makefiles	2021-03-15 19:20:48 +09:00
Makefile.compiler	kbuild: remove TMPO from try-run	2021-04-25 05:25:56 +09:00
Makefile.dtbinst	kbuild: prefix $(srctree)/ to some included Makefiles	2021-03-15 19:20:48 +09:00
Makefile.extrawarn	Makefile.extrawarn: remove -Wnested-externs warning	2020-12-08 23:30:05 +09:00
Makefile.gcc-plugins	gcc-plugins/stackleak: Use asm instrumentation to avoid useless register saving	2020-06-24 07:48:28 -07:00
Makefile.headersinst	kbuild: prefix $(srctree)/ to some included Makefiles	2021-03-15 19:20:48 +09:00
Makefile.host	kbuild: sort hostprogs before passing it to ifneq	2020-08-10 01:32:59 +09:00
Makefile.kasan	kasan: arm64: support specialized outlined tag mismatch checks	2021-05-26 23:31:26 +01:00
Makefile.kcov	kbuild: include scripts/Makefile.* only when relevant CONFIG is enabled	2020-08-10 01:32:59 +09:00
Makefile.kcsan	Kbuild updates for v5.10	2020-10-22 13:13:57 -07:00
Makefile.lib	kbuild: refactor modname-multi by using suffix-search	2021-05-06 02:14:38 +09:00
Makefile.modfinal	Kbuild updates for v5.14	2021-07-10 11:01:38 -07:00
Makefile.modinst	kbuild: add support for zstd compressed modules	2021-04-25 05:25:06 +09:00
Makefile.modpost	kbuild: fix false-positive modpost warning when all symbols are trimmed	2021-04-25 05:17:53 +09:00
Makefile.package	kbuild: deb-pkg: change the source package name to linux-upstream	2021-04-25 05:30:45 +09:00
Makefile.ubsan	ubsan: remove overflow checks	2021-02-26 09:41:05 -08:00
Makefile.userprogs
makelst
markup_oops.pl
min-tool-version.sh	scripts/min-tool-version.sh: Raise minimum clang version to 13.0.0 for s390	2021-06-28 11:18:28 +02:00
mkcompile_h	kbuild: mkcompile_h: consider timestamp if KBUILD_BUILD_TIMESTAMP is set	2021-06-17 10:01:12 +09:00
mksysmap	mksysmap: Fix the mismatch of '.L' symbols in System.map	2020-06-06 23:39:20 +09:00
mkuboot.sh
module.lds.S	module: ensure __cfi_check alignment	2021-04-08 16:04:21 -07:00
modules-check.sh	kbuild: check module name conflict for external modules as well	2021-04-25 05:22:42 +09:00
nsdeps	kbuild: replace LANG=C with LC_ALL=C	2021-05-02 00:43:35 +09:00
objdiff
parse-maintainers.pl
patch-kernel
profile2linkerlist.pl
prune-kernel
recordmcount.c	ftrace: Have recordmcount use w8 to read relp->r_info in arm64_is_fake_mcount	2021-03-02 17:27:18 -05:00
recordmcount.h	recordmcount: Correct st_shndx handling	2021-06-18 09:09:17 -04:00
recordmcount.pl	Kbuild updates for v5.13 (2nd)	2021-05-08 10:00:11 -07:00
remove-stale-files	kbuild: add a script to remove stale generated files	2021-05-02 00:43:35 +09:00
setlocalversion	scripts/setlocalversion: fix a bug when LOCALVERSION is empty	2021-07-18 23:48:14 +09:00
show_delta	tweewide: Fix most Shebang lines	2020-12-08 23:30:04 +09:00
sign-file.c
sorttable.c	s390/kernel: expand exception table logic to allow new handling options	2020-07-20 10:55:50 +02:00
sorttable.h
spdxcheck-test.sh
spdxcheck.py	scripts/spdxcheck.py: Fix a typo	2021-03-28 14:41:49 +02:00
spelling.txt	scripts/spelling.txt: add more spellings to spelling.txt	2021-06-29 10:53:45 -07:00
sphinx-pre-install	scripts: sphinx-pre-install: fix the need of virtenv packages	2021-06-01 16:29:30 -06:00
split-man.pl	tweewide: Fix most Shebang lines	2020-12-08 23:30:04 +09:00
stackdelta
stackusage
subarch.include
syscallhdr.sh	scripts: check duplicated syscall number in syscall table	2021-07-09 04:00:39 +09:00
syscallnr.sh	scripts: add generic syscallnr.sh	2021-07-09 04:01:14 +09:00
syscalltbl.sh	scripts: check duplicated syscall number in syscall table	2021-07-09 04:00:39 +09:00
tags.sh	kbuild: replace LANG=C with LC_ALL=C	2021-05-02 00:43:35 +09:00
tools-support-relr.sh	Makefile: fix GDB warning with CONFIG_RELR	2021-06-08 13:09:34 +01:00
unifdef.c
ver_linux	Removed the oprofiled version option	2021-05-03 17:23:06 -06:00
xen-hypercalls.sh
xz_wrap.sh	kbuild: add variables for compression tools	2020-06-06 23:42:01 +09:00