On Tue, May 21, 2019 at 01:23:36PM +0200, H. Nikolaus Schaller wrote: > >>> HOSTLLD -shared scripts/gcc-plugins/arm_ssp_per_task_plugin.so - due to > >>> target missing > >>> Undefined symbols for architecture x86_64: > >>> "gen_reg_rtx(machine_mode)", referenced from: > >>> (anonymous namespace)::arm_pertask_ssp_rtl_pass::execute() in > >>> arm_ssp_per_task_plugin.o
Are you seeing this error still, even after the fix I sent? Perhaps I misunderstood that it solves all of the build issues? > That seems to be a significant assumption about the build infrastructure > which now became permanently enabled by the "default y" for GCC_PLUGINS. > > I am not sure what the right way forward is. Probably for me it is to find > out if I can fix my cross-toolchain. Or if the kernel should better check > if gcc-plugins can really be built, if they are automatically enabled. > Or keep all gcc-plugins disabled until explicitly configured for? Right, that seems to be the case: it seems that the gcc plugin build sanity detection script is not working in your environment. You can check it directly. Here's the bits from the Kconfig (though I added --show-error for you, in case that's useful): preferred-plugin-hostcc := $(if-success,[ $(gcc-version) -ge 40800 ],$(HOSTCXX),$(HOSTCC)) scripts/gcc-plugin.sh --show-error "$(preferred-plugin-hostcc)" "$(HOSTCXX)" "$(CC)" I'm not sure what your kernel build picks for gcc-version, HOSTCXX HOSTCC and CC... -- Kees Cook
