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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org,
	stable@vger.kernel.org
Cc: Kees Cook <keescook@chromium.org>,
	kernel test robot <lkp@intel.com>,
	Yoshinori Sato <ysato@users.sourceforge.jp>,
	Rich Felker <dalias@libc.org>,
	John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>,
	Masahiro Yamada <masahiroy@kernel.org>,
	Nicolas Schier <n.schier@avm.de>,
	linux-sh@vger.kernel.org,
	Sasha Levin <sashal@kernel.org>
Subject: [PATCH AUTOSEL 6.8 75/98] sh: Fix build with CONFIG_UBSAN=y
Date: Fri, 29 Mar 2024 08:37:46 -0400
Message-ID: <20240329123919.3087149-75-sashal@kernel.org>
In-Reply-To: <20240329123919.3087149-1-sashal@kernel.org>
References: <20240329123919.3087149-1-sashal@kernel.org>
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From: Kees Cook <keescook@chromium.org>

[ Upstream commit e36b70fb8c707a0688960184380bc151390d671b ]

The early boot stub for sh had UBSan instrumentation present where it is
not supported. Disable it for this part of the build.

  sh4-linux-ld: arch/sh/boot/compressed/misc.o: in function `zlib_inflate_table':
  misc.c:(.text+0x670): undefined reference to `__ubsan_handle_shift_out_of_bounds'

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202401310416.s8HLiLnC-lkp@intel.com/
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Nicolas Schier <n.schier@avm.de>
Cc:  <linux-sh@vger.kernel.org>
Link: https://lore.kernel.org/r/20240130232717.work.088-kees@kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/sh/boot/compressed/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/sh/boot/compressed/Makefile b/arch/sh/boot/compressed/Makefile
index b5e29f99c02c8..6c6c791a1d063 100644
--- a/arch/sh/boot/compressed/Makefile
+++ b/arch/sh/boot/compressed/Makefile
@@ -12,6 +12,7 @@ targets := vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 \
            vmlinux.bin.lzma vmlinux.bin.xz vmlinux.bin.lzo $(OBJECTS)
 
 GCOV_PROFILE := n
+UBSAN_SANITIZE := n
 
 #
 # IMAGE_OFFSET is the load offset of the compression loader
-- 
2.43.0