On Wed, Feb 28, 2018 at 01:46:33PM -0800, Kees Cook wrote: > On Tue, Feb 27, 2018 at 2:01 PM, Segher Boessenkool > <seg...@kernel.crashing.org> wrote: > > This adds a new option -mreadonly-in-sdata (on by default) that > > controls whether readonly data can be put in sdata. (For EABI this > > does nothing, readonly data is put in sdata2 as usual). > > Cool! Thanks for working on this. > > > Kees, could you try this out with your use case? Add the flag > > -mno-readonly-in-sdata in your build scripts. The patch is against > > GCC trunk. > > I'm struggling to create a ppc cross compiler, otherwise I would be > happy to test this. :)
For compiling kernels you can use <http://git.infradead.org/users/segher/buildall.git> > If you're able to build a ppc kernel and remove the "static" from > mm/rodata_test_data.c's rodata_test_data and see the rodata_test_data > variable not in .sdata, that should be sufficient. The case reported > was here: > https://lkml.org/lkml/2017/9/21/156 > > I'll continue trying to solve my cross build issue... I'm trying to figure out how to get that file to build at all :-) Segher
