On Mon, 16 Jan 2017, Christophe Leroy wrote: > Christian, can you test it ?
OK, so with that applied to v4.10-rc4, compilation still fails with GCC 4.9.2 and CC_STACKPROTECTOR_STRONG=y, see below. But it compiles just fine with CC_STACKPROTECTOR_REGULAR=y and boots to! Cross-compiling the same with GCC 5.2.0 works, even for CC_STACKPROTECTOR_STRONG=y and the system boots just fine. So, with that limitation, feel free to add: Tested-by: Christian Kujau <li...@nerdbynature.de> Thanks for the fix! Christian. ---- $ gcc --version | head -1 gcc-4.9.real (Debian 4.9.2-10) 4.9.2 $ grep CC_STACKPROTECTOR_STRONG $DIR/.config CONFIG_CC_STACKPROTECTOR_STRONG=y $ make O=$DIR V=1 bindeb-pkg [...] + ld -EB -m elf32ppc -Bstatic --build-id -X -o .tmp_vmlinux1 -T ./arch/powerpc/kernel/vmlinux.lds arch/powerpc/kernel/head_32.o arch/powerpc/kernel/fpu.o arch/powerpc/kernel/vector.o arch/powerpc/kernel/prom_init.o init/built-in.o --start-group usr/built-in.o arch/powerpc/kernel/built-in.o arch/powerpc/mm/built-in.o arch/powerpc/lib/built-in.o arch/powerpc/sysdev/built-in.o arch/powerpc/platforms/built-in.o arch/powerpc/math-emu/built-in.o arch/powerpc/crypto/built-in.o arch/powerpc/net/built-in.o kernel/built-in.o certs/built-in.o mm/built-in.o fs/built-in.o ipc/built-in.o security/built-in.o crypto/built-in.o block/built-in.o lib/lib.a lib/built-in.o drivers/built-in.o sound/built-in.o firmware/built-in.o net/built-in.o virt/built-in.o --end-group arch/powerpc/platforms/built-in.o: In function `bootx_printf': /usr/local/src/linux-git/arch/powerpc/platforms/powermac/bootx_init.c:88: undefined reference to `__stack_chk_fail_local' arch/powerpc/platforms/built-in.o: In function `bootx_add_display_props': /usr/local/src/linux-git/arch/powerpc/platforms/powermac/bootx_init.c:211: undefined reference to `__stack_chk_fail_local' arch/powerpc/platforms/built-in.o: In function `bootx_scan_dt_build_struct': /usr/local/src/linux-git/arch/powerpc/platforms/powermac/bootx_init.c:350: undefined reference to `__stack_chk_fail_local' arch/powerpc/platforms/built-in.o: In function `bootx_init': /usr/local/src/linux-git/arch/powerpc/platforms/powermac/bootx_init.c:596: undefined reference to `__stack_chk_fail_local' /usr/bin/ld.bfd.real: .tmp_vmlinux1: hidden symbol `__stack_chk_fail_local' isn't defined /usr/bin/ld.bfd.real: final link failed: Bad value -- BOFH excuse #66: bit bucket overflow
