On Wed, 19 Dec 2018, Florian Weimer wrote: > * Richard Biener: > > > The cost is probably target dependent - on x86 it's simply a $fs based > > load/store. > > Do you need to reserve something in the TCB for this?
No idea. But I figured using TLS with the patch only works when optimizing and not with -O0. Huh. Anyway, it should be equivalent to what presence of __thread void *_SV1MASK = (void *)-1l; requires (plus I make that symbol GNU_UNIQUE). I see this allocates -1 in the .tdata section marked TLS. Richard. -- Richard Biener <rguent...@suse.de> SUSE LINUX GmbH, GF: Felix Imendoerffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nuernberg)
