[GOLD] PowerPC relocations for prefix insns
[deliverable/binutils-gdb.git] / gold / ChangeLog
index f9df977d95990ad52da7634e936d7f4eecb0d45f..d6e2c0c5f7f1f00143c5bc6e8a94fcc30b7e0e17 100644 (file)
@@ -1,3 +1,143 @@
+2019-07-13  Alan Modra  <amodra@gmail.com>
+
+       * powerpc.cc (Target_powerpc): Add powerxx_stubs_ and accessor
+       functions.
+       (Target_powerpc::maybe_skip_tls_get_addr_call): Handle PLT_PCREL34
+       and PLT_PCREL34_NOTOC relocs.
+       (Powerpc_relocate_functions): Add addr34, addr34_hi, addr34_ha,
+       addr28, addr16_higher34, addr16_highera34, addr16_highest34,
+       addr16_highest34a functions.
+       (li_11_0, ori_11_11_0, sldi_11_11_34): Define.
+       (paddi_12_pc, pld_12_pc, pnop): Define.
+       (d34, ha34): New inline functions.
+       (Stub_table::add_plt_call_entry): Handle powerxx_stubs.
+       (Stub_table::add_eh_frame): Likewise.
+       (build_powerxx_offset): New function.
+       (Stub_table::plt_call_size): Handle powerxx_stubs.
+       (Stub_table::branch_stub_size): Likewise.
+       (Stub_table::do_write): Likewise.
+       (Target_powerpc::Scan::get_reference_flags): Handle new relocs.
+       (Target_powerpc::Scan::reloc_needs_plt_for_ifunc: Likewise.
+       (Target_powerpc::Scan::local, global, relocate): Likewise.
+
+2019-07-13  Alan Modra  <amodra@gmail.com>
+
+       * ehframe.cc (Fde::operator==): Delete.
+       (Cie::remove_fde): Delete.
+       (Eh_frame::remove_ehframe_for_plt): Delete fde_data and fde_length
+       parameters.  Remove all post-map plt FDEs.
+       * ehframe.h (Fde:post_map): Make const, add variant to compare plt.
+       (Fde::operator==): Delete.
+       (Cie::remove_fde): Implement here.
+       (Cie::last_fde): New accessor.
+       (Eh_frame::remove_ehframe_for_plt): Update prototype.
+       * layout.cc (Layout::remove_eh_frame_for_plt): Delete fde_data and
+       fde_length parameters.
+       * layout.h (Layout::remove_eh_frame_for_plt): Update prototype.
+       * powerpc.cc (Stub_table::tls_get_addr_opt_bctrl_): Delete.
+       (Stub_table::plt_fde_len_, plt_fde_, init_plt_fde): Delete.
+       (Stub_table::add_plt_call_entry): Don't set tls_get_addr_opt_bctrl_.
+       (eh_advance): New function.
+       (stub_sort): New function.
+       (Stub_table::add_eh_frame): Emit eh_frame for notoc plt calls and
+       branches as well as __tls_get_addr_opt plt call stub.
+       (Stub_table::remove_eh_frame): Update to suit.
+
+2019-07-13  Alan Modra  <amodra@gmail.com>
+
+       * powerpc.cc (Target_powerpc::maybe_skip_tls_get_addr_call): Handle
+       notoc calls.
+       (is_branch_reloc): Template on size.  Return true for REL24_NOTOC.
+       Update all callers.
+       (max_branch_delta): Likewise.
+       (Target_powerpc::Branch_info::make_stub): Add a stub for notoc
+       calls to functions needing a valid toc pointer.
+       (Target_powerpc::do_relax): Layout stubs again if any need resize.
+       (add_12_11_12, addi_12_11, addis_12_11, ldx_12_11_12, ori_12_12_0),
+       (oris_12_12_0, sldi_12_12_32): Define.
+       (Stub_table::Plt_stub_ent): Add notoc_ and iter_ fields.
+       (Stub_table::Branch_stub_key, Branch_stub_key_hash): Rename from
+       Branch_stub_ent and Branch_stub_ent hash.  Remove save_res_ from key.
+       (Stub_table::Branch_stub_ent): New struct.
+       (class Stub_table): Add need_resize and resizing vars.
+       (Stub_table::need_resize, branch_size): New accessors.
+       (Stub_table::set_resizing): New function.
+       (Stub_table::add_plt_call_entry): Handle notoc calls and resizing
+       on seeing such or a tocsave stubs after a normal stub using the
+       same sym.
+       (Stub_table::add_long_branch_entry): Similarly.
+       (Stub_table::find_long_branch_entry): Return a Branch_stub_ent*.
+       (Stub_table::define_stub_syms): Adjust
+       (Stub_table::build_tls_opt_head, build_tls_opt_tail): New functions.
+       (build_notoc_offset): New function.
+       (Stub_table::plt_call_size): Move out of line.  Handle notoc calls.
+       (Stub_table::branch_stub_size): Similarly.
+       (Stub_table::do_write): Separate loop for ELFv2 stubs, handling
+       notoc calls.  Simplify ELFv1 loop.  Output notoc branch stubs.
+       Use build_tls_opt_head and build_tls_opt_tail.
+       (Target_powerpc::Scan::get_reference_flags): Handle REL24_NOTOC.
+       (Target_powerpc::Scan::reloc_needs_plt_for_ifunc): Likewise,
+       and PLTSEQ_NOTOC and PLTCALL_NOTOC.
+       (Target_powerpc::Scan::local, global, relocate): Likewise.
+
+2019-06-28  Alan Modra  <amodra@gmail.com>
+
+       * powerpc.cc (Target_powerpc::Relocate::relocate): Don't look
+       at next/previous reloc when relnum is -1.
+
+2019-06-28  Alan Modra  <amodra@gmail.com>
+
+       * powerpc.cc (Stub_table::plt_error): New function.
+       (Stub_table::do_write): Use it.
+       (Output_data_glink::do_write): Don't segfault emitting linkage
+       table error.
+
+2019-06-28  Alan Modra  <amodra@gmail.com>
+
+       * powerpc.cc (Target_powerpc::Scan::get_reference_flags): Handle
+       REL16_HIGH* relocs.
+       (Target_powerpc::Scan::local): Likewise.
+       (Target_powerpc::Scan::global): Likewise.
+       (Target_powerpc::Relocate::relocate): Likewise.
+
+2019-06-10  Martin Liska  <mliska@suse.cz>
+
+       * errors.h: Include string.
+
+2019-05-10  Joshua Oreman  <oremanj@hudson-trading.com>
+
+       PR gold/21066
+       * gc.h (gc_process_relocs): Track relocations in .eh_frame sections
+       when ICF is enabled, even though the .eh_frame sections themselves
+       are not foldable.
+       * icf.cc (get_section_contents): Change arguments to permit operation
+       on just part of a section. Include extra identity regions in the
+       referring section's contents recursively.
+       (match_sections): Lock object here instead of in get_section_contents
+       so that get_section_contents can operate recursively.
+       (Icf::add_ehframe_links): New method.
+       (Icf::find_identical_sections): Pass .eh_frame sections to
+       add_ehframe_links(). Increase default iteration count from 2 to 3
+       because handling exception info typically requires one extra iteration.
+       * icf.h (Icf::extra_identity_list_): New data member with accessor.
+       (is_section_foldable_candidate): Include .gcc_except_table sections.
+       * options.h: Update documentation for new default ICF iteration count.
+       * testsuite/Makefile.am (icf_test_pr21066): New test case.
+       * testsuite/Makefile.in: Regenerate.
+       * testsuite/icf_test_pr21066.cc: New source file.
+       * testsuite/icf_test_pr21066.sh: New test script.
+
+2019-02-19  Egeyar Bagcioglu  <egeyar.bagcioglu@oracle.com>
+
+     PR gold/23870
+     * aarch64.cc (Target_aarch64::Scan::global): Check if a symbol with
+     R_AARCH64_MOVW_.ABS_* relocations requires a PLT entry.
+     * testsuite/Makefile.am: Add aarch64_pr23870 test case.
+     * testsuite/Makefile.in: Regenerate.
+     * testsuite/aarch64_pr23870_bar.c: New file.
+     * testsuite/aarch64_pr23870_foo.c: New file.
+     * testsuite/aarch64_pr23870_main.S: New file.
+
 2019-02-12  Nick Clifton  <nickc@redhat.com>
 
        * po/fr.po: Updated French translation.
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