Messages in this thread |  | | From | Sven Joachim <> | Subject | Re: [RFC PATCH] kbuild: add -fno-PIE | Date | Sat, 29 Oct 2016 19:03:30 +0200 |
| |
On 2016-10-29 12:10 +0200, Tomas Janousek wrote:
> On Mon, Oct 24, 2016 at 07:32:30PM +0200, Sven Joachim wrote: >> The attached patch works for me with Debian's gcc-6 package. > > I tried your patch when building 4.8.5 on an up-to-date Debian testing and > still got this: > > AS arch/x86/entry/vdso/vdso32/note.o > arch/x86/entry/vdso/vdso32/note.S:1:0: sorry, unimplemented: -mfentry > isn’t supported for 32-bit in combination with -fpic
I cannot reproduce that, FWIW. Also, arch/x86/entry/vdso/Makefile seems to explicitly filter out -mfentry from the compiler flags, but maybe I misunderstand something.
Could you please show the exact command that's failing with "make V=1"?
> Adding KBUILD_AFLAGS += $(call cc-option,-fno-pie,) helps. > (Maybe that should be as-option instead. Don't know. There are lots of > AFLAGS=$(call cc-option, ...) in the Makefiles, anyway.)
This is what Ubuntu is doing, so it works at least for them, I suppose.
Cheers, Sven
|  |