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Message-Id: <20240130232717.work.088-kees@kernel.org>
Date: Tue, 30 Jan 2024 15:27:23 -0800
From: Kees Cook <keescook@...omium.org>
To: Yoshinori Sato <ysato@...rs.sourceforge.jp>
Cc: Kees Cook <keescook@...omium.org>,
kernel test robot <lkp@...el.com>,
Rich Felker <dalias@...c.org>,
John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>,
Masahiro Yamada <masahiroy@...nel.org>,
Nicolas Schier <n.schier@....de>,
linux-sh@...r.kernel.org,
linux-kernel@...r.kernel.org,
linux-hardening@...r.kernel.org
Subject: [PATCH] sh: Fix build with CONFIG_UBSAN=y
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@...el.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202401310416.s8HLiLnC-lkp@intel.com/
Cc: Yoshinori Sato <ysato@...rs.sourceforge.jp>
Cc: Rich Felker <dalias@...c.org>
Cc: John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>
Cc: Masahiro Yamada <masahiroy@...nel.org>
Cc: Nicolas Schier <n.schier@....de>
Cc: linux-sh@...r.kernel.org
Signed-off-by: Kees Cook <keescook@...omium.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 b5e29f99c02c..6c6c791a1d06 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
--
2.34.1
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