Re: [PATCH for review] [67/145] x86_64: Detect CFI support in the assembler at runtime
From: Andi Kleen
Date: Fri Aug 11 2006 - 02:01:02 EST
On Friday 11 August 2006 07:39, Sam Ravnborg wrote:
> > +# as-instr
> > +# Usage: cflags-y += $(call as-instr, instr, option1, option2)
> > +
> > +as-instr = $(shell if echo -e "$(1)" | $(AS) -Z -o /dev/null \
> > + 2>&1 >/dev/null ; then echo "$(2)"; else echo "$(3)"; fi;)
> Have you checked that as will not delete yout /dev/null if you build as
> root? ld do so if you specify /dev/null as output file.
No. But it's probably safter to do it otherwise. Do you have an alternative?
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