The patch titled
Subject: kasan-simplify-and-clarify-makefile-v2
has been added to the -mm mm-unstable branch. Its filename is
kasan-simplify-and-clarify-makefile-v2.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/kasan-simplify-and-clarify-makefile-v2.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days
------------------------------------------------------
From: Andrey Konovalov <andreyknvl@xxxxxxxxx>
Subject: kasan-simplify-and-clarify-makefile-v2
Date: Wed, 14 Aug 2024 18:10:52 +0200
comments fixes per Miguel
Link: https://lkml.kernel.org/r/20240814161052.10374-1-andrey.konovalov@xxxxxxxxx
Signed-off-by: Andrey Konovalov <andreyknvl@xxxxxxxxx>
Reviewed-by: Miguel Ojeda <ojeda@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
scripts/Makefile.kasan | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
--- a/scripts/Makefile.kasan~kasan-simplify-and-clarify-makefile-v2
+++ a/scripts/Makefile.kasan
@@ -34,13 +34,15 @@ endif
# First, enable -fsanitize=kernel-address together with providing the shadow
# mapping offset, as for GCC, -fasan-shadow-offset fails without -fsanitize
# (GCC accepts the shadow mapping offset via -fasan-shadow-offset instead of
-# a normal --param). Instead of ifdef-checking the compiler, rely on cc-option.
+# a --param like the other KASAN parameters).
+# Instead of ifdef-checking the compiler, rely on cc-option.
CFLAGS_KASAN := $(call cc-option, -fsanitize=kernel-address \
-fasan-shadow-offset=$(KASAN_SHADOW_OFFSET), \
$(call cc-option, -fsanitize=kernel-address \
-mllvm -asan-mapping-offset=$(KASAN_SHADOW_OFFSET)))
-# Now, add other parameters enabled in a similar way with GCC and Clang.
+# Now, add other parameters enabled similarly in both GCC and Clang.
+# As some of them are not supported by older compilers, use cc-param.
CFLAGS_KASAN += $(call cc-param,asan-instrumentation-with-call-threshold=$(call_threshold)) \
$(call cc-param,asan-stack=$(stack_enable)) \
$(call cc-param,asan-instrument-allocas=1) \
_
Patches currently in -mm which might be from andreyknvl@xxxxxxxxx are
kasan-simplify-and-clarify-makefile.patch
kasan-simplify-and-clarify-makefile-v2.patch
kcov-dont-instrument-lib-find_bitc.patch
