On Thu, Apr 30, 2009 at 09:29:25AM -0700, H. Peter Anvin wrote:
> Sam Ravnborg wrote:
> >>>
> >> I'm wondering if we should build the *.lds.S with -ansi or some other
> >> gcc option which disables ALL non-underscore macros.
> >
> > I did not know that -ansi had this effect.
> > We are only seldomly hitting this issue and I wonder
> > if it could break something in out included headers.
> > Most likely not.
> >
>
> The other thing to recognize is probably that lds files aren't assembly,
> they're something else entirely. Rather than reusing the *.S rules,
> having specific rules for them probably would make sense.
We already have that:
(scripts/Makfile.build)
# Linker scripts preprocessor (.lds.S -> .lds)
# ---------------------------------------------------------------------------
quiet_cmd_cpp_lds_S = LDS $@
cmd_cpp_lds_S = $(CPP) $(cpp_flags) -D__ASSEMBLY__ -o $@ $<
$(obj)/%.lds: $(src)/%.lds.S FORCE
$(call if_changed_dep,cpp_lds_S)
So adding -ansi is trivial and will only hit .lds.S files.
I assume the lds files are named .S is because we shared rules
long time ago.
Sam
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