https://sourceware.org/bugzilla/show_bug.cgi?id=22471
--- Comment #4 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Alan Modra <amo...@sourceware.org>: https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=165f707ac88916aedecc96fa518be8879704d6da commit 165f707ac88916aedecc96fa518be8879704d6da Author: Alan Modra <amo...@gmail.com> Date: Mon Nov 27 13:40:43 2017 +1030 PR22471, undefined reference to linker-defined symbols This patch processes linker script assignment statements before ld opens DT_NEEDED libraries, in order to define symbols like __bss_start that might also be defined by a library, falsely triggering an error about "DSO missing from command line". The initial value won't be correct when assigning a symbol from dot, and I make no attempt to handle all expressions. For example, an assignment like "_start_foo = ADDR (.foo)" isn't valid until sections are laid out, so won't define _start_foo early. What's here should be enough for most common scripts, and hopefully won't perturb fragile scripts. bfd/ PR 22471 * elflink.c (_bfd_elf_merge_symbol): Allow weak symbols to override early passes over linker script symbols. * linker.c (_bfd_generic_link_add_one_symbol): Allow symbols to override early passes over linker script symbols. Clear ldscript_def on symbol definitions. ld/ PR 22471 * ldexp.c (struct definedness_hash_entry): Delete "by_script". Make "iteration" an 8-bit field, and update mask in all uses. (definedness_newfunc): Don't init "by_script". (update_definedness): Test ldscript_def rather than by_script. (is_sym_value): Likewise. (fold_name <DEFINED>): Return a result for first phase. Test ldscript_def. (fold_name <NAME>): Return a result for first phase. * ldlang.c (open_input_bfds): Process all assignments, not just defsym. (lang_process): Increment lang_statement_iteration before open_input_bfds. * testsuite/ld-mips-elf/tlsdyn-o32-1.d: Adjust for larger .dynsym. * testsuite/ld-mips-elf/tlsdyn-o32-1.got: Likewise. * testsuite/ld-mips-elf/tlsdyn-o32-2.d: Likewise. * testsuite/ld-mips-elf/tlsdyn-o32-2.got: Likewise. * testsuite/ld-mips-elf/tlsdyn-o32-3.d: Likewise. * testsuite/ld-mips-elf/tlsdyn-o32-3.got: Likewise. -- You are receiving this mail because: You are on the CC list for the bug. _______________________________________________ bug-binutils mailing list bug-binutils@gnu.org https://lists.gnu.org/mailman/listinfo/bug-binutils
