Messages in this thread | | | Date | Mon, 14 Mar 2011 15:24:45 -0400 | From | Steven Rostedt <> | Subject | Re: PATCH: Add --size-check=[error|warning] |
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On Mon, Mar 14, 2011 at 09:32:56AM -0700, H. Peter Anvin wrote: > On 03/14/2011 04:26 AM, Jan Beulich wrote: > > > > Making the kernel build system check for certain newly introduced > > gas options would again require changes to the kernel sources, > > which is precisely what is impossible to do for past kernel releases > > (and bisection in particular). > > > > But something like "make CC='gcc -Wa,--size-check=warning'" should work, > I believe (tweaking may be required, but that's the idea). Passing an > option to the assembler is a helluva lot easier than redirecting to a > different assembler. > > -hpa >
Even if the above does work, how do we go about educating users doing bisects with latest binutils? This is a very common practice among kernel developers with users that hit bugs. And right now there's just a handful of people that know of this work-around.
It will become a huge burden to us and our users (which is everyone using Linux), if we do not understand the reason a build breaks when doing a bisect, just because some "bug" in asm which binutils use to work with now errors on.
If it was a bug in asm, but binutils can cope with it, then it should be a warning. If binutils can't cope, then error.
-- Steve
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