On 07/02/14 17:57, Kees Cook wrote: > Hi Randy, > > And to explain more specifically what's happening: > > On Wed, Jul 02, 2014 at 04:21:06PM -0700, Randy Dunlap wrote: >> config-r8736:CONFIG_CC_STACKPROTECTOR_STRONG=y >> [...] >> build-r8736.out:/local/lnx/MM/mmotm-2014-0702-1507/Makefile:662: Cannot use >> CONFIG_CC_STACKPROTECTOR_STRONG: -fstack-protector-strong not supported by >> compiler >> build-r8736.out:/local/lnx/MM/mmotm-2014-0702-1507/Makefile:662: Cannot use >> CONFIG_CC_STACKPROTECTOR_STRONG: -fstack-protector-strong not supported by >> compiler >> gcc: error: unrecognized command line option '-fstack-protector-strong' > > That makes sense: a feature that requires a specific compiler version was > chosen, so you get a warning and a failed build. (The first warning was > during the .config parsing pass, the second warning was during the binary > build pass.) > >> config-r8737:# CONFIG_CC_STACKPROTECTOR_STRONG is not set >> [...] >> build-r8737.out:/local/lnx/MM/mmotm-2014-0702-1507/Makefile:662: Cannot use >> CONFIG_CC_STACKPROTECTOR_STRONG: -fstack-protector-strong not supported by >> compiler > > This is the same issue: the prior .config was still there with STRONG set, > but after finishing the new .config parsing pass, everything is happy for > the binary build pass. And, I assume, the r8737 didn't fail to build.
True, r8737 built successfully. Maybe I should use 'make mrproper' instead of 'make clean' between each randconfig build. Thanks. > > The trouble seems to be how kbuild handle .config changes, but I was never > able to sort it out. -- ~Randy -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
