https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98716
--- Comment #8 from Mark Wielaard <mark at gcc dot gnu.org> --- (In reply to Ian Lance Taylor from comment #6) > On the other hand the libbacktrace testsuite now fails when using dwz > 0.13+20201015-2. But I guess that is not a GCC problem. > > dwz -m b3test_dwz_common.debug b3test_dwz_1 b3test_dwz_2 > dwz: b3test_dwz_1: Unknown DWARF DW_FORM_implicit_const > dwz: b3test_dwz_1: Couldn't read abbrev at offset 0x0 > dwz: b3test_dwz_2: Unknown DWARF DW_FORM_implicit_const > dwz: b3test_dwz_2: Couldn't read abbrev at offset 0x0 > dwz: Too few files for multifile optimization > make[3]: *** [Makefile:2436: b3test_dwz] Error 1 Yes, you need the following upstream patch (already in Fedora rawhide): https://sourceware.org/pipermail/dwz/2021q1/000775.html
