mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-11 04:18:39 +08:00
58823a9b09
commit 69d0db01e2 upstream.
The object-size sanitizer is redundant to -Warray-bounds, and
inappropriately performs its checks at run-time when all information
needed for the evaluation is available at compile-time, making it quite
difficult to use:
https://bugzilla.kernel.org/show_bug.cgi?id=214861
With -Warray-bounds almost enabled globally, it doesn't make sense to
keep this around.
Link: https://lkml.kernel.org/r/20211203235346.110809-1-keescook@chromium.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Michal Marek <michal.lkml@markovi.net>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: "Peter Zijlstra (Intel)" <peterz@infradead.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Tadeusz Struk <tadeusz.struk@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
37 lines
1.1 KiB
Makefile
37 lines
1.1 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
|
|
|
|
export CFLAGS_UBSAN :=
|
|
|
|
ifdef CONFIG_UBSAN_ALIGNMENT
|
|
CFLAGS_UBSAN += $(call cc-option, -fsanitize=alignment)
|
|
endif
|
|
|
|
ifdef CONFIG_UBSAN_BOUNDS
|
|
ifdef CONFIG_CC_IS_CLANG
|
|
CFLAGS_UBSAN += -fsanitize=array-bounds
|
|
else
|
|
CFLAGS_UBSAN += $(call cc-option, -fsanitize=bounds)
|
|
endif
|
|
endif
|
|
|
|
ifdef CONFIG_UBSAN_LOCAL_BOUNDS
|
|
CFLAGS_UBSAN += -fsanitize=local-bounds
|
|
endif
|
|
|
|
ifdef CONFIG_UBSAN_MISC
|
|
CFLAGS_UBSAN += $(call cc-option, -fsanitize=shift)
|
|
CFLAGS_UBSAN += $(call cc-option, -fsanitize=integer-divide-by-zero)
|
|
CFLAGS_UBSAN += $(call cc-option, -fsanitize=unreachable)
|
|
CFLAGS_UBSAN += $(call cc-option, -fsanitize=signed-integer-overflow)
|
|
CFLAGS_UBSAN += $(call cc-option, -fsanitize=bool)
|
|
CFLAGS_UBSAN += $(call cc-option, -fsanitize=enum)
|
|
endif
|
|
|
|
ifdef CONFIG_UBSAN_TRAP
|
|
CFLAGS_UBSAN += $(call cc-option, -fsanitize-undefined-trap-on-error)
|
|
endif
|
|
|
|
# -fsanitize=* options makes GCC less smart than usual and
|
|
# increase number of 'maybe-uninitialized false-positives
|
|
CFLAGS_UBSAN += $(call cc-option, -Wno-maybe-uninitialized)
|