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[198.145.64.163]) by smtp.gmail.com with ESMTPSA id s189sm235834pfb.60.2020.12.02.16.44.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 02 Dec 2020 16:44:46 -0800 (PST) From: Kees Cook To: Andrew Morton Cc: Kees Cook , Nathan Chancellor , Linus Torvalds , Ard Biesheuvel , Arnd Bergmann , Masahiro Yamada , Michal Marek , Nick Desaulniers , Marco Elver , Randy Dunlap , Dmitry Vyukov , George Popescu , Herbert Xu , Peter Oberparleiter , Andrey Ryabinin , clang-built-linux@googlegroups.com, linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 4/7] ubsan: Disable UBSAN_TRAP for all*config Date: Wed, 2 Dec 2020 16:44:34 -0800 Message-Id: <20201203004437.389959-5-keescook@chromium.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201203004437.389959-1-keescook@chromium.org> References: <20201203004437.389959-1-keescook@chromium.org> MIME-Version: 1.0 X-Patch-Hashes: v=1; h=sha256; g=7ee65f6e259e469145bd4516a970901be12cf3f3; i=K+dhdzJLSQHC/2OrzylSjjcBSx8EEn7IdlM58268AK0=; m=YBBOuBPVmA0P1a8coxM/uNwSE65GsSmjFIZeFPhFxcA=; p=MLch31Yqya7Wm7SW8qWS5SpAYj2nWDWoZGT+cDhNm18= X-Patch-Sig: m=pgp; i=keescook@chromium.org; s=0x0x8972F4DFDC6DC026; b=iQIzBAABCgAdFiEEpcP2jyKd1g9yPm4TiXL039xtwCYFAl/INPMACgkQiXL039xtwCYBSw/8DTc om4n+iIU1idXW55ytKK87K4IZv1Fjd3LIN+1ZMVRkJEffet3ABmM7D2LijRwGurqERGdSbAQNg0ds KMf0NneVxosE8z/1ytEp5P0apQexcdIaXPU/1YlGOCzJ5+FXBJ1BwNFozG2VpPQwOxba9WssYbbtm vyL3W0X2VHGgdQXWv3Ogwx11d6X98S0S0geq4rSgOSzKRHqDr6U/bNQGWQHtr4r6hGOU9p5G4uRV1 gQ7R+2cDrDx0HQb8Avg/vES/td9L/wTh5TjzYr6UZTV/6EJXdEq8f+em9QMbS9DwmtMVt461bXuKv qkUnHX3BnSKqWTlAzymTy+cARSzEFry86Rz8ZxPzjtXo/ubTyD/R3IbT3zCsQNn5J1ZsAj33agvLH mTGNArntPT8jfvhsBe+IFKUUNMgFvli6FZhYcyFAGtq6pV5ILsuWsn7NEEAnjht/3hSH8V83eUqhP z8EikJENhLcSALmAQCW0DEZGsPH2P1Dh8LOgBIxj6xEmeO6kepSI/hs0dCg6KinAlk9BRe53uBCIR OxM/ERuEH3QizmQINLxQe1AuomVsx+e+ZiDjYsyOhRq1ukBclw7QSMR1CyshAr5cswbCztLiwwifR f+LEwKTBqV4vCM8x8FVGlv+bLJ4NqrFhHZ3/cV5rIyu3GZlTWs85IABUKSrnGXRg= Precedence: bulk List-ID: X-Mailing-List: linux-kbuild@vger.kernel.org Doing all*config builds attempts to build as much as possible. UBSAN_TRAP effectively short-circuits lib/usban.c, so it should be disabled for COMPILE_TEST so that the lib/ubsan.c code gets built. Reviewed-by: Nathan Chancellor Signed-off-by: Kees Cook --- lib/Kconfig.ubsan | 1 + 1 file changed, 1 insertion(+) diff --git a/lib/Kconfig.ubsan b/lib/Kconfig.ubsan index 4190a99b1eaa..6e8b67d4b0d9 100644 --- a/lib/Kconfig.ubsan +++ b/lib/Kconfig.ubsan @@ -14,6 +14,7 @@ if UBSAN config UBSAN_TRAP bool "On Sanitizer warnings, abort the running kernel code" + depends on !COMPILE_TEST depends on $(cc-option, -fsanitize-undefined-trap-on-error) help Building kernels with Sanitizer features enabled tends to grow