https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81968
--- Comment #45 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot Uni-Bielefeld.DE> --- > --- Comment #43 from rguenther at suse dot de <rguenther at suse dot de> --- > On Tue, 2 Jan 2018, ro at CeBiTec dot Uni-Bielefeld.DE wrote: > >> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81968 >> >> --- Comment #42 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec >> dot Uni-Bielefeld.DE> --- >> > --- Comment #41 from rguenther at suse dot de <rguenther at suse dot de> >> > --- >> [...] >> >> Unfortunately not: it's really the section index pointing to the >> >> non-existing (i.e. eliminated) .gnu.debuglto_.debug_info section. >> > >> > But that section shouldn't be eliminated :/ >> >> IIUC it has been renamed to .debug_info: >> >> * input object (cp_lto_pr42987_0.o): >> >> Section Header[9]: sh_name: .gnu.debuglto_.debug_info >> sh_addr: 0 sh_flags: 0 >> sh_size: 0x3d4 sh_type: [ SHT_PROGBITS ] >> sh_offset: 0x7fb sh_entsize: 0 >> sh_link: 0 sh_info: 0 >> sh_addralign: 0x1 >> >> * output object (ccw3tETddebugobjtem): >> >> Section Header[2]: sh_name: .debug_info >> sh_addr: 0 sh_flags: 0 >> sh_size: 0x3d4 sh_type: [ SHT_PROGBITS ] >> sh_offset: 0x84d sh_entsize: 0 >> sh_link: 0 sh_info: 0 >> sh_addralign: 0x1 >> >> without adapting section indices in .symtab. > > Yes. It should have retained [9] as section index. Hmmm - you > have the patch removing sections in your tree? I guess you need Indeed: without it, Solaris results are far worse. > to adapt (aka remap) the first_shndx section index I added with > the patch for the hpux ld issue. Right: with that change, the .symtab warnings are gone. >> Besides, there's also a dangling >> >> Section Header[6]: sh_name: .rel.gnu.debuglto_.debug_info >> sh_addr: 0 sh_flags: 0 >> sh_size: 0x8 sh_type: [ SHT_REL ] >> sh_offset: 0x11c8 sh_entsize: 0x8 (1 entry) >> sh_link: 5 sh_info: 9 >> sh_addralign: 0x4 >> >> in the output object. > > that should have been used as the reloc section for the new section 2. > I see sh_info is still 9, it should be 2. That's eventually > missing handling in the section removal patch. I'll try to figure this out. > I've committed the hpux fix so in case you re-base the patch and > fix up the first_shndx issue please attach the rebased one. Just did so. Rainer
