Date: Sun, 19 May 2019 19:43:43 +0000 From: bugzilla-noreply@freebsd.org To: toolchain@FreeBSD.org Subject: [Bug 237068] /usr/local/bin/ld: BFD (GNU Binutils) 2.30 assertion fail elflink.c:2824 Message-ID: <bug-237068-29464-8ndgAPJmjK@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-237068-29464@https.bugs.freebsd.org/bugzilla/> References: <bug-237068-29464@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D237068 Mark Millard <marklmi26-fbsd@yahoo.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |marklmi26-fbsd@yahoo.com --- Comment #8 from Mark Millard <marklmi26-fbsd@yahoo.com> --- I see this sort of thing on powerpc64 with 2.32 as well. The code reporting the problem is the last BFD_ASSERT in: static bfd_boolean _bfd_elf_fix_symbol_flags (struct elf_link_hash_entry *h, struct elf_info_failed *eif) { . . . if (h->is_weakalias) { struct elf_link_hash_entry *def =3D weakdef (h); /* If the real definition is defined by a regular object file, don't do anything special. See the longer description in _bfd_elf_adjust_dynamic_symbol, below. */ if (def->def_regular) { h =3D def; while ((h =3D h->u.alias) !=3D def) h->is_weakalias =3D 0; } else { while (h->root.type =3D=3D bfd_link_hash_indirect) h =3D (struct elf_link_hash_entry *) h->root.u.i.link; BFD_ASSERT (h->root.type =3D=3D bfd_link_hash_defined || h->root.type =3D=3D bfd_link_hash_defweak); BFD_ASSERT (def->def_dynamic); BFD_ASSERT (def->root.type =3D=3D bfd_link_hash_defined); (*bed->elf_backend_copy_indirect_symbol) (eif->info, def, h); } } return TRUE; } For: /usr/bin/powerpc64-unknown-freebsd13.0-ld "--eh-frame-hdr" "-Bshareable" "--enable-new-dtags" "-o" "lib/libLTO.so.6.0.1" "/usr/lib/crti.o" "/usr/lib/crtbeginS.o" "-L/usr/local/lib" "-L/usr/lib" "-z" "origin" "-O3" "--gc-sections" "--version-script" "/wrkdirs/usr/ports/devel/llvm60/work/.build/tools/lto/LTO.exports" "-sonam= e" "libLTO.so.6" "tools/lto/CMakeFiles/LTO.dir/LTODisassembler.cpp.o" "tools/lto/CMakeFiles/LTO.dir/lto.cpp.o" "-rpath" "\$ORIGIN/../lib:/usr/local/lib" "lib/libLLVM-6.0.so" "-lc++" "-lm" "-lgcc" "--as-needed" "-lgcc_s" "--no-as-needed" "-lc" "-lgcc" "--as-needed" "-lgcc= _s" "--no-as-needed" "/usr/lib/crtendS.o" "/usr/lib/crtn.o" the backtrace at the first message report is: Breakpoint 1, error_handler_internal (fmt=3D0x101dbc48 "BFD %s assertion fa= il %s:%d", ap=3D0x3fffffffffffcdc8 "") at bfd.c:1093 1093 { (gdb) bt #0 error_handler_internal (fmt=3D0x101dbc48 "BFD %s assertion fail %s:%d", ap=3D0x3fffffffffffcdc8 "") at bfd.c:1093 #1 0x00000000100204e8 in ld_bfd_error_handler (fmt=3D<optimized out>, ap=3D<optimized out>) at ./ldmain.c:187 #2 0x0000000010049b7c in _bfd_error_handler (fmt=3D<optimized out>) at bfd.c:1178 #3 0x000000001002047c in ld_bfd_assert_handler (fmt=3D<optimized out>, bfdver=3D<optimized out>, file=3D<optimized out>, line=3D<optimized out>) at ./ldmain.c:177 #4 0x0000000010049de4 in bfd_assert (file=3D<optimized out>, line=3D<optim= ized out>) at bfd.c:1429 #5 0x00000000100a520c in _bfd_elf_fix_symbol_flags (h=3Dh@entry=3D0x811e77= b70, eif=3Deif@entry=3D0x3fffffffffffcf70) at elflink.c:2935 #6 0x00000000100a54a0 in _bfd_elf_link_assign_sym_version (h=3D0x811e77b70, data=3D0x3fffffffffffd148) at elflink.c:2363 #7 0x0000000010053d28 in bfd_link_hash_traverse (htab=3D0x810e50000, func=3D@0x10223720: 0x100a5460 <_bfd_elf_link_assign_sym_version>, info=3D<optimized out>) at linker.c:669 #8 0x00000000100ab92c in bfd_elf_size_dynamic_sections (output_bfd=3D0x810e4b000, soname=3D0x3fffffffffffdc87 "libLTO.so.6", rpath=3D0x8105fee80 "$ORIGIN/../lib:/usr/local/lib", filter_shlib=3D0x0,=20 audit=3D0x0, depaudit=3D0x0, auxiliary_filters=3D0x0, info=3D0x102324d8 <link_info>, sinterpptr=3D0x3fffffffffffd280) at elflink.c:6316 #9 0x0000000010032b34 in gldelf64ppc_fbsd_before_allocation () at eelf64ppc_fbsd.c:2107 #10 ppc_before_allocation () at eelf64ppc_fbsd.c:404 #11 0x00000000100264e0 in ldemul_before_allocation () at ldemul.c:82 #12 0x000000001001d644 in lang_process () at ldlang.c:7593 #13 0x00000000100047b8 in main (argc=3D<optimized out>, argv=3D<optimized o= ut>) at ./ldmain.c:440 For _bfd_elf_fix_symbol_flags the later gdb output shows that *h has: _ZZN4llvm7hashing6detail18get_execution_seedEvE4seed@@LLVM_6.0 root.type =3D bfd_link_hash_defweak is_weakalias =3D 1 *h->u.alias has: __bss_start@@LLVM_6.0 root.type =3D bfd_link_hash_indirect is_weakalias =3D 0 So that was def (via weakdef) and def->root.type=3D=3Dbfd_link_hash_indirec= t . (Not that I know what to do next with such information.) The supporting details: static inline struct elf_link_hash_entry * weakdef (struct elf_link_hash_entry *h) { while (h->is_weakalias) h =3D h->u.alias; return h; } (gdb) down #5 0x00000000100a520c in _bfd_elf_fix_symbol_flags (h=3Dh@entry=3D0x811e77= b70, eif=3Deif@entry=3D0x3fffffffffffcf70) at elflink.c:2935 2935 BFD_ASSERT (def->root.type =3D=3D bfd_link_hash_defined); (gdb) print def $1 =3D <optimized out> (gdb) print *h $5 =3D {root =3D {root =3D {next =3D 0x0, string =3D 0x811e77b30 "_ZZN4llvm7hashing6detail18get_execution_seedEvE4seed@@LLVM_6.0", hash =3D 1230121370}, type =3D bfd_link_hash_defweak, non_ir_ref_regular =3D 0,=20 non_ir_ref_dynamic =3D 0, linker_def =3D 0, ldscript_def =3D 0, rel_fro= m_abs =3D 0, u =3D {undef =3D {next =3D 0x0, abfd =3D 0x811072340}, def =3D {next =3D 0x= 0, section =3D 0x811072340, value =3D 0}, i =3D {next =3D 0x0,=20 link =3D 0x811072340, warning =3D 0x0}, c =3D {next =3D 0x0, p =3D = 0x811072340, size =3D 0}}}, indx =3D -1, dynindx =3D -1, got =3D {refcount =3D 0, offset= =3D 0, glist =3D 0x0, plist =3D 0x0}, plt =3D {refcount =3D 0,=20 offset =3D 0, glist =3D 0x0, plist =3D 0x0}, size =3D 8, type =3D 1, ot= her =3D 0, target_internal =3D 0, ref_regular =3D 0, def_regular =3D 0, ref_dynamic = =3D 0, def_dynamic =3D 1, ref_regular_nonweak =3D 0,=20 dynamic_adjusted =3D 0, needs_copy =3D 0, needs_plt =3D 0, non_elf =3D 0,= versioned =3D versioned, forced_local =3D 0, dynamic =3D 0, mark =3D 0, non_got_ref =3D 0, dynamic_def =3D 1, ref_dynamic_nonweak =3D 0,=20 pointer_equality_needed =3D 0, unique_global =3D 0, protected_def =3D 0, = start_stop =3D 0, is_weakalias =3D 1, dynstr_index =3D 0, u =3D {alias =3D 0x8119bc690, elf_hash_value =3D 34655159952}, verinfo =3D { verdef =3D 0x811073448, vertree =3D 0x811073448}, u2 =3D {start_stop_se= ction =3D 0x0, vtable =3D 0x0}} (gdb) print *(eif->info) $7 =3D {type =3D type_dll, symbolic =3D 0, nocopyreloc =3D 0, export_dynami= c =3D 0, create_default_symver =3D 0, gc_sections =3D 1, gc_keep_exported =3D 0, not= ice_all =3D 0, lto_plugin_active =3D 0,=20 strip_discarded =3D 1, dynamic_data =3D 0, resolve_section_groups =3D 1, = strip =3D strip_none, discard =3D discard_sec_merge, elf_stt_common =3D unchanged, common_skip_ar_symbols =3D bfd_link_common_skip_none,=20 unresolved_syms_in_objects =3D RM_IGNORE, unresolved_syms_in_shared_libs = =3D RM_IGNORE, static_link =3D 0, keep_memory =3D 1, emitrelocations =3D 0, rel= ro =3D 0, separate_code =3D 0, eh_frame_hdr_type =3D 1,=20 warn_shared_textrel =3D 0, error_textrel =3D 0, emit_hash =3D 1, emit_gnu= _hash =3D 0, reduce_memory_overheads =3D 0, traditional_format =3D 0, combreloc =3D 1, default_imported_symver =3D 0, new_dtags =3D 1,=20 no_ld_generated_unwind_info =3D 0, task_link =3D 0, allow_multiple_defini= tion =3D 0, prohibit_multiple_definition_absolute =3D 0, allow_undefined_version =3D= 1, dynamic =3D 0, execstack =3D 0, noexecstack =3D 0,=20 optimize =3D 1, print_gc_sections =3D 0, warn_alternate_em =3D 0, user_ph= drs =3D 0, load_phdrs =3D 1, check_relocs_after_open_input =3D 1, bndplt =3D 0, ibtplt= =3D 0, ibt =3D 0, shstk =3D 0, nointerp =3D 0,=20 no_reloc_overflow_check =3D 0, call_nop_as_suffix =3D 0, inhibit_common_definition =3D 0, has_map_file =3D 0, call_nop_byte =3D 0 '\= 000', wrap_char =3D 46 '.', path_separator =3D 58 ':',=20 compress_debug =3D COMPRESS_DEBUG_NONE, stacksize =3D 0, disable_target_specific_optimizations =3D -1, callbacks =3D 0x10229318 <link_callbacks>, hash =3D 0x810e50000, keep_hash =3D 0x0, notice_hash =3D = 0x0,=20 wrap_hash =3D 0x0, ignore_hash =3D 0x0, output_bfd =3D 0x810e4b000, out_i= mplib_bfd =3D 0x0, input_bfds =3D 0x810e4b140, input_bfds_tail =3D 0x810e4cc70, create_object_symbols_section =3D 0x0,=20 gc_sym_list =3D 0x810e491a0, base_file =3D 0x0, init_function =3D 0x10143= 078 "_init", fini_function =3D 0x10143080 "_fini", relax_pass =3D 1, relax_trip= =3D 0, extern_protected_data =3D -1,=20 dynamic_undefined_weak =3D -1, pei386_auto_import =3D -1, pei386_runtime_pseudo_reloc =3D 0, spare_dynamic_tags =3D 5, flags =3D 1, f= lags_1 =3D 128, relro_start =3D 0, relro_end =3D 0, dynamic_list =3D 0x0,=20 version_info =3D 0x810e22000} (gdb) print *h->u.alias $8 =3D {root =3D {root =3D {next =3D 0x8128f5e28, string =3D 0x8119bc678 "__bss_start@@LLVM_6.0", hash =3D 266808839}, type =3D bfd_link_hash_indire= ct, non_ir_ref_regular =3D 0, non_ir_ref_dynamic =3D 0,=20 linker_def =3D 0, ldscript_def =3D 1, rel_from_abs =3D 1, u =3D {undef = =3D {next =3D 0x8119bc690, abfd =3D 0x8119bc748}, def =3D {next =3D 0x8119bc690, section = =3D 0x8119bc748, value =3D 158833}, i =3D { next =3D 0x8119bc690, link =3D 0x8119bc748, warning =3D 0x26c71 <er= ror: Cannot access memory at address 0x26c71>}, c =3D {next =3D 0x8119bc690, p = =3D 0x8119bc748, size =3D 158833}}}, indx =3D -1,=20 dynindx =3D -1, got =3D {refcount =3D 0, offset =3D 0, glist =3D 0x0, pli= st =3D 0x0}, plt =3D {refcount =3D 0, offset =3D 0, glist =3D 0x0, plist =3D 0x0}, size =3D = 0, type =3D 0, other =3D 0, target_internal =3D 0,=20 ref_regular =3D 0, def_regular =3D 0, ref_dynamic =3D 1, def_dynamic =3D = 1, ref_regular_nonweak =3D 0, dynamic_adjusted =3D 0, needs_copy =3D 0, needs_= plt =3D 0, non_elf =3D 0, versioned =3D versioned,=20 forced_local =3D 0, dynamic =3D 0, mark =3D 0, non_got_ref =3D 0, dynamic= _def =3D 1, ref_dynamic_nonweak =3D 0, pointer_equality_needed =3D 0, unique_global =3D= 0, protected_def =3D 0, start_stop =3D 0,=20 is_weakalias =3D 0, dynstr_index =3D 0, u =3D {alias =3D 0x811e77b70, elf= _hash_value =3D 34660121456}, verinfo =3D {verdef =3D 0x811073448, vertree =3D 0x811073= 448}, u2 =3D {start_stop_section =3D 0x0, vtable =3D 0x0}} --=20 You are receiving this mail because: You are the assignee for the bug.=
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