On Fri, Nov 04, 2016 at 07:39:37PM +0100, Sebastian Andrzej Siewior wrote: > Debian gcc's is nowdays compiled with --enable-default-pie which means it does > -fPIE by default. This breaks atleast x86-64 compiles. > This is the third attempt to fix it, this time by using runtime detection of > the -fno-PIE compiler switch (it was introduced in gcc 3.4, min required gcc is > currently 3.2) so it can be backported to the stable kernels. > As noted by Al this won't fix `git bisect' of stable kernels prio this commit. > However using always a wrapper around gcc which adds -fno-PIE is not sollution > I want to rely in future. A wrapper around gcc which adds -fno-PIE doesn't work for the HOSTCC builds, anyway: % gcc -fno-PIE -o /tmp/hello /tmp/hello.c /usr/bin/ld: /tmp/cckzDf9X.o: relocation R_X86_64_32 against `.rodata' can not be used when making a shared object; recompile with -fPIC /usr/bin/ld: final link failed: Nonrepresentable section on output collect2: error: ld returned 1 exit status Alas, the only workaround I've found which doesn't involve bisecting the kernel is to add "CC=gcc-5" to the Makefile invocation (assuming gcc-5 is installed of course). - Ted -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
