Messages in this thread | | | Date | Wed, 13 Oct 2021 17:29:41 -0700 | From | Josh Poimboeuf <> | Subject | Re: [PATCH 4/4] vmlinux.lds.h: Have ORC lookup cover entire _etext - _stext |
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On Wed, Oct 13, 2021 at 10:57:42AM -0700, Kees Cook wrote: > From: Kristen Carlson Accardi <kristen@linux.intel.com> > > When using -ffunction-sections to place each function in its own text > section (so it can be randomized at load time in the future FGKASLR > series), the linker will place most of the functions into separate .text.* > sections. SIZEOF(.text) won't work here for calculating the ORC lookup > table size, so the total text size must be calculated to include .text > AND all .text.* sections. > > Signed-off-by: Kristen Carlson Accardi <kristen@linux.intel.com> > Reviewed-by: Tony Luck <tony.luck@intel.com> > Tested-by: Tony Luck <tony.luck@intel.com> > Reviewed-by: Kees Cook <keescook@chromium.org> > [ alobakin: move it to vmlinux.lds.h and make arch-indep ] > Signed-off-by: Alexander Lobakin <alexandr.lobakin@intel.com> > Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
-- Josh
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