https://sourceware.org/bugzilla/show_bug.cgi?id=22978
--- Comment #3 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=4352556b36ab4f1c6f81a0ac3daf4619a419558d commit 4352556b36ab4f1c6f81a0ac3daf4619a419558d Author: Alan Modra <amo...@gmail.com> Date: Thu Apr 19 11:19:35 2018 +0930 PR22978, TLS local-dynamic incorrectly linked on hppa-linux We were emitting dynamic relocs on the second word of a TLS GD GOT entry pair (the dtprel offset), without the addend necessary when no symbol is present on the dynamic reloc. Unfortunately the simple solution of providing the proper addend doesn't work due to an hppa glibc ld.so bug that ignores such addends. So instead optimize the relocs. The dtprel offset is known at link time for locally defined symbols (the only case where we'll end up with no symbol on a dynamic reloc) so we can omit the dynamic reloc in that case. Furthermore, we can omit a dynamic reloc on the first word of a TLS GD GOT entry pair (the module id) if the symbol is local and we are producing an executable. Similarly, a tprel reloc on a TLS IE GOT entry is not needed for local symbols in an executable. So the condition for TLS GOT relocs can become bfd_link_dll(info) rather than bfd_link_pic(info) as needed for normal GOT relocs. This all presumes hppa ld.so doesn't need to differentiate TLS GD GOT pairs from TLS LD GOT pairs, which is currently true. PR 22978 * elf32-hppa.c (got_relocs_needed): Add extra param to special case both dtprel and tprel relocs. (allocate_dynrelocs): Adjust conditions for got relocs. (elf32_hppa_relocate_section): Likewise for local sym got relocs. Emit dynamic relocs on TLS GOT entries for shared libraries, not when pic. Omit dynamic reloc on dtprel entry when local, and on tprel entry when local and executable. -- 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
