Nathan Chancellor
866a85813b
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 11:59:54 +01:00
kbuild: remove unneeded comments and code from scripts/basic/Makefile
2019-08-29 23:54:29 +09:00
scripts: add dummy report mode to add_namespace.cocci
2020-08-11 15:33:35 +02:00
scripts/dtc: dtx_diff: remove broken example from help text
2022-01-27 09:19:55 +01:00
gcc-common.h: Update for GCC 10
2020-05-27 17:46:24 +02:00
scripts/gdb: fix lx-symbols 'gdb.error' while loading modules
2020-07-29 10:18:35 +02:00
genksyms: convert to SPDX License Identifier for lex.l and parse.y
2019-09-14 11:40:13 +09:00
kconfig: nconf: stop endless search loops
2021-05-19 10:08:23 +02:00
vmlinux.lds.h: Create section for protection against instrumentation
2021-02-17 10:35:16 +01:00
kbuild: fix broken builds because of GZIP,BZIP2,LZOP variables
2020-09-03 11:27:10 +02:00
scripts/tracing: fix the bug that can't parse raw_trace_func
2021-08-12 13:21:00 +02:00
kbuild: remove the first line of *.mod files
2019-07-18 02:19:31 +09:00
scripts: switch explicitly to Python 3
2021-05-22 11:38:30 +02:00
checkpatch: fix unescaped left brace
2020-12-30 11:51:27 +01:00
tweewide: Fix most Shebang lines
2021-05-22 11:38:30 +02:00
scripts/decode_stacktrace: strip basepath from all paths
2020-07-29 10:18:35 +02:00
scripts/decodecode: fix trapping instruction formatting
2020-05-14 07:58:29 +02:00
depmod: handle the case of /sbin/depmod without /sbin in PATH
2021-01-12 20:16:10 +01:00
scripts: switch explicitly to Python 3
2021-05-22 11:38:30 +02:00
modpost: move the namespace field in Module.symvers last
2020-03-25 08:25:55 +01:00
scripts/find-unused-docs: Fix massive false positives
2020-02-11 04:35:23 -08:00
gen_compile_commands: lower the entry count threshold
2019-07-27 12:18:19 +09:00
kbuild: Fix 'no symbols' warning when CONFIG_TRIM_UNUSD_KSYMS=y
2021-09-22 12:26:26 +02:00
tweewide: Fix most Shebang lines
2021-05-22 11:38:30 +02:00
get_maintainer: add ability to skip moderated mailing lists
2019-07-16 19:23:22 -07:00
scripts: headers_install: Exit with error on config leak
2020-06-24 17:50:33 +02:00
scripts/kallsyms: fix definitely-lost memory leak
2020-01-04 19:18:23 +01:00
kbuild: sink stdout from cmd for silent build
2021-07-25 14:35:11 +02:00
kconfig: introduce m32-flag and m64-flag
2020-04-08 09:08:37 +02:00
kernel-doc: Allow anonymous enum
2019-08-12 15:00:37 -06:00
leaking_addresses: Always print a trailing newline
2021-11-17 09:48:31 +01:00
bpf: Support llvm-objcopy for vmlinux BTF
2020-06-17 16:40:20 +02:00
scripts: set proper OpenSSL include dir also for sign-file
2021-02-26 10:10:27 +01:00
kbuild: Fix objtool dependency for 'OBJECT_FILES_NON_STANDARD_<obj> := n'
2021-07-14 16:53:20 +02:00
kbuild: clean up subdir-ymn calculation in Makefile.clean
2019-08-29 23:54:29 +09:00
Makefile.extrawarn: Move -Wunaligned-access to W=1
2022-02-23 11:59:54 +01:00
gcc-plugins/structleak: add makefile var for disabling structleak
2021-10-27 09:54:28 +02:00
kbuild: move headers_check rule to usr/include/Makefile
2020-03-05 16:43:47 +01:00
kbuild: change *FLAGS_<basetarget>.o to take the path relative to $(obj)
2019-09-04 23:12:50 +09:00
kasan/arm64: fix CONFIG_KASAN_SW_TAGS && KASAN_INLINE
2019-08-15 13:24:04 +01:00
kbuild: fix broken builds because of GZIP,BZIP2,LZOP variables
2020-09-03 11:27:10 +02:00
kbuild: get rid of kernel/ prefix from in-tree modules.{order,builtin}
2019-07-17 22:39:27 +09:00
kbuild: move modkern_{c,a}flags to Makefile.lib from Makefile.build
2019-08-22 01:14:11 +09:00
kbuild: modinst: read modules.order instead of $(MODVERDIR)/*.mod
2019-07-17 22:39:27 +09:00
Modules updates for v5.4
2019-09-22 10:34:46 -07:00
kbuild: modsign: read modules.order instead of $(MODVERDIR)/*.mod
2019-07-17 22:39:27 +09:00
kbuild: fix broken builds because of GZIP,BZIP2,LZOP variables
2020-09-03 11:27:10 +02:00
kbuild: mkcompile_h: consider timestamp if KBUILD_BUILD_TIMESTAMP is set
2021-07-25 14:35:12 +02:00
kbuild: get rid of $(realpath ...) from scripts/mkmakefile
2019-08-29 23:54:29 +09:00
mksysmap: Fix the mismatch of '.L' symbols in System.map
2020-06-24 17:50:19 +02:00
kbuild: get rid of kernel/ prefix from in-tree modules.{order,builtin}
2019-07-17 22:39:27 +09:00
namespace: fix namespace.pl script to support relative paths
2019-10-05 15:29:49 +09:00
scripts: add dummy report mode to add_namespace.cocci
2020-08-11 15:33:35 +02:00
parse-maintainers: Mark as executable
2020-03-25 08:25:49 +01:00
ftrace: Have recordmcount use w8 to read relp->r_info in arm64_is_fake_mcount
2021-03-09 11:09:39 +01:00
recordmcount: Correct st_shndx handling
2021-06-30 08:47:49 -04:00
recordmcount.pl: fix typo in s390 mcount regex
2022-01-05 12:37:44 +01:00
scripts/setlocalversion: make git describe output more reliable
2020-11-01 12:01:01 +01:00
tweewide: Fix most Shebang lines
2021-05-22 11:38:30 +02:00
tweewide: Fix most Shebang lines
2021-05-22 11:38:30 +02:00
tweewide: Fix most Shebang lines
2021-05-22 11:38:30 +02:00
Makefile: fix GDB warning with CONFIG_RELR
2021-07-14 16:53:12 +02:00
kbuild: add variables for compression tools
2020-09-03 11:27:10 +02:00
866a85813b