https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81968
--- Comment #9 from rguenther at suse dot de <rguenther at suse dot de> --- On Tue, 29 Aug 2017, ro at CeBiTec dot Uni-Bielefeld.DE wrote: > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81968 > > --- Comment #8 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot > Uni-Bielefeld.DE> --- > > --- Comment #6 from rguenther at suse dot de <rguenther at suse dot de> --- > > On Mon, 28 Aug 2017, ro at CeBiTec dot Uni-Bielefeld.DE wrote: > [...] > > Thanks. Can you check whether the above patch resolves the extra > > warning about section flags? The symtab entry one will prevail > > of course. > > Sure: it did indeed in last night's sparc-sun-solaris2.11 and > i386-pc-solaris2.11 bootstraps. Thanks. > > However, I noticed now that I'd missed another ld warning: > > ld: warning: file /var/tmp//ccS6p31cdebugobjtem: section [29].symtab: > symbol[30]: global symbol has no name > > and some more. Seen e.g in gcc.dg/debug/pr41893-1.c with -gdwarf-2 -g3. > And indeed elfdump -s shows > > ro@colima 112 > elfdump -s /var/tmp//ccCyYAtcdebugobjtem |grep GLOB > [29] 0 0 NOTY GLOB D 0 UNDEF > [31] 0 0 NOTY GLOB D 0 UNDEF Ian steered me to use this in place of what I did before (a COMM with zero size and no name). He said UNDEFs can be global. As said, similar to the section removal I do not actually remove symbols because that requires editing relocation sections. Why does Solaris ld output warnings by default? Does it have an option to suppress them? It doesn't seem that it considers them errors?
