Re: [PATCH v8 00/21] Compile-time stack validation

From: Josh Poimboeuf
Date: Thu Aug 13 2015 - 10:50:23 EST


On Thu, Aug 13, 2015 at 09:42:25AM -0500, Chris J Arges wrote:
> On Thu, Aug 13, 2015 at 06:22:20AM -0500, Josh Poimboeuf wrote:
> > On Wed, Aug 12, 2015 at 04:24:49PM -0500, Chris J Arges wrote:
> > > I still get build failures and I've pared it down to x86_64 defconfig plus:
> > > CONFIG_MODVERSIONS=y
> > > CONFIG_STACK_VALIDATION=y
> > >
> > > And it seems like some modules may get the .tmp_foo.o treatment while
> > > others end up foo.o so something like the following will not work:
> > >
> > > cmd_stackvalidate = $(if $(patsubst n%,, \
> > > $(STACKVALIDATE_$(basetarget).o)$(STACKVALIDATE)y), \
> > > $(__stackvalidate) $(nofp) "$(@D)/.tmp_$(@F)";)
> >
> > Does this fix it?
> >
> > diff --git a/scripts/Makefile.build b/scripts/Makefile.build
> > index ec96c51..0181915 100644
> > --- a/scripts/Makefile.build
> > +++ b/scripts/Makefile.build
> > @@ -263,8 +263,8 @@ endif # CONFIG_STACK_VALIDATION
> > define rule_cc_o_c
> > $(call echo-cmd,checksrc) $(cmd_checksrc) \
> > $(call echo-cmd,cc_o_c) $(cmd_cc_o_c); \
> > - $(cmd_stackvalidate) \
> > $(cmd_modversions) \
> > + $(cmd_stackvalidate) \
> > $(call echo-cmd,record_mcount) \
> > $(cmd_record_mcount) \
> > scripts/basic/fixdep $(depfile) $@ '$(call make-cmd,cc_o_c)' > \
> >
>
> Josh,
>
> Yes, this fixes my build. For completeness this is my current diff:

Great! I'll roll both patches into v10.

--
Josh
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