linux/scripts
Nathan Chancellor 9dd6e5296c kbuild: Fix '-S -c' in x86 stack protector scripts
commit 3415b10a03 upstream.

After a recent change in clang to stop consuming all instances of '-S'
and '-c' [1], the stack protector scripts break due to the kernel's use
of -Werror=unused-command-line-argument to catch cases where flags are
not being properly consumed by the compiler driver:

  $ echo | clang -o - -x c - -S -c -Werror=unused-command-line-argument
  clang: error: argument unused during compilation: '-c' [-Werror,-Wunused-command-line-argument]

This results in CONFIG_STACKPROTECTOR getting disabled because
CONFIG_CC_HAS_SANE_STACKPROTECTOR is no longer set.

'-c' and '-S' both instruct the compiler to stop at different stages of
the pipeline ('-S' after compiling, '-c' after assembling), so having
them present together in the same command makes little sense. In this
case, the test wants to stop before assembling because it is looking at
the textual assembly output of the compiler for either '%fs' or '%gs',
so remove '-c' from the list of arguments to resolve the error.

All versions of GCC continue to work after this change, along with
versions of clang that do or do not contain the change mentioned above.

Cc: stable@vger.kernel.org
Fixes: 4f7fd4d7a7 ("[PATCH] Add the -fstack-protector option to the CFLAGS")
Fixes: 60a5317ff0 ("x86: implement x86_32 stack protector")
Link: 6461e53781 [1]
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
[nathan: Fixed conflict in 32-bit version due to lack of 3fb0fdb3bb]
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-08-19 05:32:17 +02:00
..
basic kbuild: move bin2c back to scripts/ from scripts/basic/ 2018-07-18 01:18:05 +09:00
coccinelle fs: stream_open - opener for stream-like files so that read and write can run simultaneously without deadlock 2019-05-08 07:21:51 +02:00
dtc scripts/dtc: dtx_diff: remove broken example from help text 2022-01-27 09:04:33 +01:00
gcc-plugins gcc-plugins: Rename last_stmt() for GCC 14+ 2024-07-27 10:33:40 +02:00
gdb scripts/gdb: fix lx-symbols 'gdb.error' while loading modules 2020-07-29 10:16:51 +02:00
genksyms genksyms: Teach parser about 128-bit built-in types 2019-07-31 07:27:02 +02:00
kconfig kconfig: remove wrong expr_trans_bool() 2024-07-27 10:33:41 +02:00
ksymoops
mod modpost: add missing else to the "of" check 2023-10-10 21:45:01 +02:00
package kbuild: deb-pkg: fix bindeb-pkg breakage when O= is used 2019-04-17 08:38:45 +02:00
selinux selinux: use "grep -E" instead of "egrep" 2022-10-26 13:19:24 +02:00
tracing scripts/tracing: fix the bug that can't parse raw_trace_func 2021-08-12 13:19:42 +02:00
.gitignore kbuild: move bin2c back to scripts/ from scripts/basic/ 2018-07-18 01:18:05 +09:00
adjust_autoksyms.sh kbuild: remove CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX 2018-05-17 22:44:57 +09:00
asn1_compiler.c ASN.1: Fix check for strdup() success 2023-04-26 11:21:53 +02:00
bin2c.c kbuild: move bin2c back to scripts/ from scripts/basic/ 2018-07-18 01:18:05 +09:00
bloat-o-meter scripts: switch explicitly to Python 3 2021-05-22 10:59:50 +02:00
bootgraph.pl
bpf_helpers_doc.py scripts/bpf: Fix xdp_md forward declaration typo 2024-03-01 13:06:11 +01:00
cc-can-link.sh bpfilter: check compiler capability in Kconfig 2018-06-28 13:36:39 +09:00
check_00index.sh
check_extable.sh
checkincludes.pl
checkkconfigsymbols.py
checkpatch.pl checkpatch: fix unescaped left brace 2020-12-30 11:26:04 +01:00
checkstack.pl scripts/checkstack.pl: Fix arm64 wrong or unknown architecture 2019-06-25 11:35:58 +08:00
checksyscalls.sh
checkversion.pl
clang-version.sh kbuild: Add a space after ! to prevent parsing as file pattern 2018-08-22 23:21:40 +09:00
cleanfile
cleanpatch
coccicheck coccicheck: return proper error code on fail 2018-08-14 08:58:56 +09:00
config tweewide: Fix most Shebang lines 2021-05-22 10:59:50 +02:00
conmakehash.c
const_structs.checkpatch
decode_stacktrace.sh scripts/decode_stacktrace: strip basepath from all paths 2020-07-29 10:16:51 +02:00
decodecode scripts/decodecode: fix trapping instruction formatting 2020-05-14 07:57:23 +02:00
depmod.sh depmod: handle the case of /sbin/depmod without /sbin in PATH 2021-01-12 20:10:16 +01:00
diffconfig scripts: switch explicitly to Python 3 2021-05-22 10:59:50 +02:00
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 MAINTAINERS & files: Canonize the e-mails I use at files 2018-05-04 06:21:06 -04:00
extract-cert.c cert host tools: Stop complaining about deprecated OpenSSL functions 2022-11-25 17:40:20 +01:00
extract-ikconfig
extract-module-sig.pl
extract-sys-certs.pl
extract-vmlinux scripts: teach extract-vmlinux about LZ4 and ZSTD 2018-07-08 09:32:32 +09:00
faddr2line scripts/faddr2line: Fix regression in name resolution on ppc64le 2022-12-08 11:18:32 +01:00
file-size.sh kbuild: Use ls(1) instead of stat(1) to obtain file size 2018-03-26 02:01:24 +09:00
find-unused-docs.sh scripts/find-unused-docs: Fix massive false positives 2020-02-11 04:34:01 -08:00
gcc-goto.sh jump_label: move 'asm goto' support test to Kconfig 2019-06-04 08:02:34 +02:00
gcc-ld
gcc-plugin.sh
gcc-version.sh
gcc-x86_32-has-stack-protector.sh kbuild: Fix '-S -c' in x86 stack protector scripts 2024-08-19 05:32:17 +02:00
gcc-x86_64-has-stack-protector.sh kbuild: Fix '-S -c' in x86 stack protector scripts 2024-08-19 05:32:17 +02:00
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 kbuild: Improve portability of some sed invocations 2018-03-26 02:01:18 +09:00
headers.sh
insert-sys-cert.c
kallsyms.c scripts/kallsyms: fix definitely-lost memory leak 2020-01-04 19:13:09 +01:00
Kbuild.include kbuild: improve cc-option to clean up all temporary files 2020-06-30 23:17:15 -04:00
Kconfig.include kbuild: use -S instead of -E for precise cc-option test in Kconfig 2020-02-24 08:34:50 +01:00
kernel-doc scripts/kernel-doc: Escape all literal braces in regexes 2018-08-06 13:36:20 -06:00
ld-version.sh
leaking_addresses.pl leaking_addresses: Always print a trailing newline 2021-11-26 11:36:06 +01:00
Lindent
link-vmlinux.sh kbuild: rename LDFLAGS to KBUILD_LDFLAGS 2018-08-24 08:22:08 +09:00
Makefile scripts: set proper OpenSSL include dir also for sign-file 2021-03-04 09:39:29 +01:00
Makefile.asm-generic Kbuild updates for v4.15 2017-11-17 17:45:29 -08:00
Makefile.build kbuild: generate modules.order only in directories visited by obj-y/m 2023-03-17 08:31:43 +01:00
Makefile.clean kbuild: remove deprecated host-progs variable 2018-08-09 21:51:17 +09:00
Makefile.dtbinst DeviceTree for 4.15: 2017-11-14 18:25:40 -08:00
Makefile.extrawarn kbuild: Move -Wenum-{compare-conditional,enum-conversion} into W=1 2024-04-13 12:50:06 +02:00
Makefile.gcc-plugins gcc-plugins: Undefine LATENT_ENTROPY_PLUGIN when plugin disabled for a file 2022-08-25 11:15:42 +02:00
Makefile.headersinst Kbuild updates for v4.15 2017-11-17 17:45:29 -08:00
Makefile.host kbuild: Rename HOST_LOADLIBES to KBUILD_HOSTLDLIBS 2018-07-18 01:18:05 +09:00
Makefile.kasan kasan: rework Kconfig settings 2018-02-06 18:32:47 -08:00
Makefile.kcov kcov: test compiler capability in Kconfig and correct dependency 2018-06-11 09:14:08 +09:00
Makefile.lib kbuild: disable dtc simple_bus_reg warnings by default 2019-12-13 08:52:18 +01:00
Makefile.modbuiltin Kbuild: Makefile.modbuiltin: include auto.conf and tristate.conf mandatory 2018-08-03 00:47:00 +09:00
Makefile.modinst kbuild: remove duplicated comments about PHONY 2018-07-06 22:04:03 +09:00
Makefile.modpost kbuild: Fix include path in scripts/Makefile.modpost 2022-09-05 10:26:33 +02:00
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: mkcompile_h: consider timestamp if KBUILD_BUILD_TIMESTAMP is set 2021-07-28 11:13:43 +02:00
mkmakefile
mksysmap mksysmap: Fix the mismatch of 'L0' symbols in System.map 2022-09-28 11:02:53 +02:00
mkuboot.sh
module-common.lds
namespace.pl namespace: fix namespace.pl script to support relative paths 2019-10-29 09:19:36 +01:00
objdiff
parse-maintainers.pl parse-maintainers: Mark as executable 2020-03-25 08:06:08 +01:00
patch-kernel
pnmtologo.c
profile2linkerlist.pl
prune-kernel
recordmcount.c recordmcount: Fix memory leaks in the uwrite function 2023-05-30 12:42:10 +01:00
recordmcount.h recordmcount: Fix spurious mcount entries on powerpc 2019-07-31 07:27:03 +02:00
recordmcount.pl recordmcount.pl: fix typo in s390 mcount regex 2022-01-05 12:34:58 +01:00
setlocalversion scripts/setlocalversion: make git describe output more reliable 2020-11-05 11:08:31 +01:00
show_delta
sign-file.c sign-file: Fix incorrect return values check 2023-12-20 15:38:01 +01:00
sortextable.c
sortextable.h
spdxcheck.py scripts/spdxcheck.py: always open files in binary mode 2018-12-19 19:19:50 +01:00
spelling.txt treewide: correct "differenciate" and "instanciate" typos 2018-08-23 18:48:43 -07:00
sphinx-pre-install scripts/sphinx-pre-install: fix script for RHEL/CentOS 2019-08-16 10:12:44 +02:00
split-man.pl tweewide: Fix most Shebang lines 2021-05-22 10:59:50 +02:00
stackdelta
stackusage
subarch.include selftests: add headers_install to lib.mk 2018-09-05 08:12:09 -06:00
tags.sh scripts/tags.sh: Resolve gtags empty index generation 2023-08-11 11:45:01 +02:00
unifdef.c unifdef: use memcpy instead of strncpy 2018-12-08 12:59:06 +01:00
ver_linux ver_linux: Do not check for ver_linux pattern in version function 2018-07-07 17:44:52 +02:00
xen-hypercalls.sh
xz_wrap.sh