On Tuesday 11 October 2011 13:30:24 Stefano Babic wrote: > On 10/10/2011 07:51 PM, Mike Frysinger wrote: > > i'm not sure which gets used more, or if > > it's just a wash. i think it makes sense to have an accessible default > > func if it does something useful, but not if it's just a stub. > > > > in the __def/weak style above, unless people use --gc-sections when > > linking (i think we've got many people doing this now, but not all), you > > end up with dead code in the binary. in the code i proposed, the func > > gets discarded both when using --gc-sections and when not. > > You are right, but probably it makes no difference. I checked and it > seems that only a few architectute (m68k, sparc and microblaze) do not > set --gc-sections.
i would think the microblaze missing would be an oversight as it's "newer" code. don't know (or honestly, care) how hard it would be to make m68k/sparc sane. but it would be nice to get everyone using gc-sections as we could move that into common code and all new arches would start out sane ... -mike
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