Nathan Chancellor
4bc7e76ee0
Makefile.extrawarn: Move -Wunaligned-access to W=1 ...
commit 1cf5f151d25fcca94689efd91afa0253621fb33a upstream.
-Wunaligned-access is a new warning in clang that is default enabled for
arm and arm64 under certain circumstances within the clang frontend (see
LLVM commit below). On v5.17-rc2, an ARCH=arm allmodconfig build shows
1284 total/70 unique instances of this warning (most of the instances
are in header files), which is quite noisy.
To keep a normal build green through CONFIG_WERROR, only show this
warning with W=1, which will allow automated build systems to catch new
instances of the warning so that the total number can be driven down to
zero eventually since catching unaligned accesses at compile time would
be generally useful.
Cc: stable@vger.kernel.org
Link: 35737df4dchttps://github.com/ClangBuiltLinux/linux/issues/1569
Link: https://github.com/ClangBuiltLinux/linux/issues/1576
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
[nathan: Fix conflict due to lack of afe956c577b2d]
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-23 11:56:38 +01:00
fixdep: faster CONFIG_ search
2016-08-24 22:34:19 +02:00
fs: stream_open - opener for stream-like files so that read and write can run simultaneously without deadlock
2019-06-11 12:22:49 +02:00
scripts/dtc: dtx_diff: remove broken example from help text
2022-01-27 08:47:42 +01:00
gcc-common.h: Update for GCC 10
2020-05-27 16:41:43 +02:00
scripts/gdb: fix lx-version string output
2021-01-12 19:49:03 +01:00
kbuild: Regenerate genksyms lexer
2016-08-25 20:03:51 +02:00
kconfig: nconf: stop endless search loops
2021-05-22 10:40:30 +02:00
modpost: skip ELF local symbols during section mismatch check
2019-12-21 10:41:17 +01:00
builddeb: Fix header package regarding dtc source links
2018-05-30 07:50:39 +02:00
selinux: explicitly declare the role "base_r"
2015-07-13 13:32:00 -04:00
scripts/tracing: fix the bug that can't parse raw_trace_func
2021-08-15 13:01:03 +02:00
KEYS: Reserve an extra certificate symbol for inserting without recompiling
2016-02-26 15:30:20 +00:00
kbuild: make scripts/adjust_autoksyms.sh robust against timestamp races
2018-05-30 07:50:37 +02:00
tweewide: Fix most Shebang lines
2021-06-03 08:23:27 +02:00
ASN.1: fix open failure check on headername
2016-04-06 14:06:48 +01:00
scripts: switch explicitly to Python 3
2021-06-03 08:23:27 +02:00
tweewide: Fix most Shebang lines
2021-06-03 08:23:27 +02:00
DocBook: Use a fixed encoding for output
2015-09-28 01:31:48 -06:00
tweewide: Fix most Shebang lines
2021-06-03 08:23:27 +02:00
checkkconfigsymbols: use arglist instead of cmd string
2016-08-28 11:08:34 +02:00
checkpatch: fix unescaped left brace
2020-12-29 13:45:01 +01:00
tweewide: Fix most Shebang lines
2021-06-03 08:23:27 +02:00
x86/asm/entry: Move the arch/x86/syscalls/ definitions to arch/x86/entry/syscalls/
2015-06-04 07:37:37 +02:00
coccinelle: fix parallel build with CHECK=scripts/coccicheck
2017-12-14 09:28:22 +01:00
tweewide: Fix most Shebang lines
2021-06-03 08:23:27 +02:00
const_structs.checkpatch: add frequently used from Julia Lawall's list
2016-10-11 15:06:30 -07:00
scripts/decode_stacktrace: strip basepath from all paths
2020-07-31 16:44:03 +02:00
scripts/decodecode: fix trapping instruction formatting
2020-05-20 08:15:29 +02:00
depmod: handle the case of /sbin/depmod without /sbin in PATH
2021-01-12 19:49:01 +01:00
scripts: switch explicitly to Python 3
2021-06-03 08:23:27 +02:00
docproc: print a comment about autogeneration for rst output
2016-05-14 09:56:56 -06:00
KEYS: Remove unnecessary header #inclusions from extract-cert.c
2015-09-25 16:31:45 +01:00
KEYS: Provide a script to extract a module signature
2015-10-21 15:18:36 +01:00
KEYS: Use the symbol value for list size, updated by scripts/insert-sys-cert
2016-02-26 15:32:05 +00:00
tweewide: Fix most Shebang lines
2021-06-03 08:23:27 +02:00
scripts/faddr2line: improve on base path filtering a bit
2016-09-19 14:49:08 -07:00
gcc-plugins: abort builds cleanly when not supported
2016-08-08 17:49:05 -07:00
scripts/has-stack-protector: add -fno-PIE
2016-11-09 22:28:05 +01:00
initramfs: Escape colons in depfile
2016-09-23 10:35:32 +02:00
tweewide: Fix most Shebang lines
2021-06-03 08:23:27 +02:00
get_maintainer: quiet noisy implicit -f vcs_file_exists checking
2016-08-26 17:39:34 -07:00
headers_check: don't warn about c++ guards
2016-05-24 14:12:48 +10:00
KEYS: Reserve an extra certificate symbol for inserting without recompiling
2016-02-26 15:30:20 +00:00
scripts/kallsyms: fix definitely-lost memory leak
2020-01-04 13:41:02 +01:00
kbuild: improve cc-option to clean up all temporary files
2020-06-30 15:38:43 -04:00
scripts/kernel-doc: Don't fail with status != 0 if error encountered with -none
2018-02-25 11:05:47 +01:00
scripts/kernel-doc: Adding cross-reference links to html documentation.
2015-08-16 22:11:16 -06:00
ld-version: Drop the 4th and 5th version components
2016-05-13 14:02:05 +02:00
scripts/Lindent: handle missing indent gracefully
2015-09-04 16:54:41 -07:00
kbuild: allow architectures to use thin archives instead of ld -r
2016-09-09 10:31:19 +02:00
scripts: set proper OpenSSL include dir also for sign-file
2021-03-07 11:25:55 +01:00
kbuild: Remove stale asm-generic wrappers
2016-07-07 15:58:45 +02:00
tracing: Avoid calling cc-option -mrecord-mcount for every Makefile
2021-02-23 13:59:17 +01:00
Shared library support
2016-06-07 22:57:10 +02:00
dtbsinstall: don't move target directory out of the way
2016-01-28 11:40:32 +01:00
Makefile.extrawarn: Move -Wunaligned-access to W=1
2022-02-23 11:56:38 +01:00
gcc-plugins: Add latent_entropy plugin
2016-10-10 14:51:44 -07:00
kbuild: Add __cc-option macro
2018-11-23 08:20:35 +01:00
kasan: don't emit builtin calls when sanitization is off
2018-08-17 20:59:29 +02:00
kbuild: fix asm-offset generation to work with clang
2018-11-23 08:20:35 +01:00
modsign: Abort modules_install when signing fails
2015-08-07 16:26:13 +01:00
kbuild: modpost: handle KBUILD_EXTRA_SYMBOLS only for external modules
2019-08-25 10:51:47 +02:00
Kbuild: enable -Wmaybe-uninitialized warning for "make W=1"
2016-11-11 08:45:08 -08:00
tweewide: Fix most Shebang lines
2021-06-03 08:23:27 +02:00
kbuild: mkcompile_h: consider timestamp if KBUILD_BUILD_TIMESTAMP is set
2021-07-28 09:14:25 +02:00
mksysmap: Fix the mismatch of '.L' symbols in System.map
2020-06-30 15:38:23 -04:00
objtool, modules: Discard objtool annotation sections for modules
2018-01-17 09:38:58 +01:00
namespace: fix namespace.pl script to support relative paths
2019-10-29 09:15:06 +01:00
tweewide: Fix most Shebang lines
2021-06-03 08:23:27 +02:00
scripts: add "prune-kernel" script to clean up old kernel images
2016-02-09 10:09:52 -08:00
scripts/recordmcount.{c,pl}: support -ffunction-sections .text.* section names
2021-03-17 16:10:15 +01:00
recordmcount: Fix spurious mcount entries on powerpc
2019-08-04 09:33:38 +02:00
recordmcount.pl: fix typo in s390 mcount regex
2022-01-05 12:31:24 +01:00
scripts/setlocalversion: make git describe output more reliable
2020-11-10 10:23:50 +01:00
tweewide: Fix most Shebang lines
2021-06-03 08:23:27 +02:00
modsign: Make sign-file determine the format of the X.509 cert
2016-06-14 13:18:33 +01:00
parisc: Use generic extable search and sort routines
2016-03-23 16:00:46 +01:00
spelling.txt: "modeled" is spelt correctly
2016-10-07 18:46:30 -07:00
tweewide: Fix most Shebang lines
2021-06-03 08:23:27 +02:00
scripts: add stackusage script
2015-08-28 17:04:40 +02:00
tags: honor COMPILED_SOURCE with apart output directory
2018-04-13 19:48:21 +02:00
unifdef: use memcpy instead of strncpy
2018-12-08 13:05:05 +01:00
ver_linux: rename ver_linux.awk to ver_linux
2016-08-31 13:59:31 +02:00
4bc7e76ee0