[Bug gold/16900] [PATCH] when linked with gold, NetBSD ld.elf_so crashes due to missing .plt.got entry

[cvs-commit at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=16900

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https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=6ce193a2807a10a53c1883e573f0ea5e03fbff76

commit 6ce193a2807a10a53c1883e573f0ea5e03fbff76
Author: Cary Coutant <address@hidden>
Date:   Tue May 6 11:40:04 2014 -0700

    Fix issue where first reserved word of GOT is not initialized if there
    is no PLT.

    gold/
        PR gold/16900
        * i386.cc (Output_data_got_plt_i386): New class.
        (Output_data_plt_i386::Output_data_plt_i386): Change type of got_plt
        parameter. Change all callers.
        (Output_data_plt_i386::layout_): Remove.
        (Output_data_plt_i386::got_plt_): Change type.
        (Target_i386::got_plt_): Change type. Change all references.
        (Target_i386::got_section): Create instance of new class.
        (Output_data_got_plt_i386::do_write): New function.
        * x86_64.cc (Output_data_got_plt_x86_64): New class.
        (Output_data_plt_x86_64::Output_data_plt_x86_64): Change type of
got_plt
        parameter. Change all callers.
        (Output_data_plt_x86_64::layout_): Remove.
        (Output_data_plt_x86_64::got_plt_): Change type.
        (Target_x86_64::got_plt_): Change type. Change all references.
        (Target_x86_64::got_section): Create instance of new class.
        (Output_data_got_plt_x86_64::do_write): New function.
        (Output_data_plt_x86_64::do_write): Don't write reserved words in GOT.
        (Target_x86_64<size>::init_got_plt_for_update): Create instance of new
        class.

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=367f1035d2f7da6fbad69f659208bdb7da3d55dc

commit 367f1035d2f7da6fbad69f659208bdb7da3d55dc
Author: Cary Coutant <address@hidden>
Date:   Wed Apr 2 14:21:14 2014 -0700

    Fix handling of __ehdr_start when it cannot be defined.

    gold/
        * defstd.cc (in_segment): Define __ehdr_start here...
        * layout.cc (Layout::finalize): ...Instead of here.  Set the
        output segment when known.
        * resolve.cc (Symbol::override_base_with_special): Remember
        the original binding.
        * symtab.cc (Symbol::set_output_segment): New function.
        (Symbol::set_undefined): New function.
        * symtab.h (Symbol::is_weak_undefined): Check original undef
        binding.
        (Symbol::is_strong_undefined): New function.
        (Symbol::set_output_segment): New function.
        (Symbol::set_undefined): New function.
        * target-reloc.h (is_strong_undefined): Remove.
        (issue_undefined_symbol_error): Call Symbol::is_weak_undefined.
        Check for hidden undefs.
        (relocate_section): Call Symbol::is_strong_undefined.

        * testsuite/Makefile.am (ehdr_start_test_1)
        (ehdr_start_test_2, ehdr_start_test_3)
        (ehdr_start_test_4, ehdr_start_test_5): New test cases.
        * testsuite/Makefile.in: Regenerate.
        * testsuite/ehdr_start_def.cc: New source file.
        * testsuite/ehdr_start_test.cc: New source file.
        * testsuite/ehdr_start_test.t: New linker script.
        * testsuite/ehdr_start_test_4.sh: New shell script.

-----------------------------------------------------------------------

Summary of changes:
 gold/ChangeLog                      |   51 ++++++++
 gold/defstd.cc                      |   14 ++
 gold/i386.cc                        |  102 +++++++++++-----
 gold/layout.cc                      |   14 ++-
 gold/resolve.cc                     |    4 +
 gold/symtab.cc                      |   25 ++++
 gold/symtab.h                       |   34 +++++-
 gold/target-reloc.h                 |    8 +-
 gold/testsuite/Makefile.am          |   44 +++++++
 gold/testsuite/Makefile.in          |  223 +++++++++++++++++++++++++++++++----
 gold/testsuite/ehdr_start_def.cc    |   26 ++++
 gold/testsuite/ehdr_start_test.cc   |   67 +++++++++++
 gold/testsuite/ehdr_start_test.t    |   42 +++++++
 gold/testsuite/ehdr_start_test_4.sh |   40 ++++++
 gold/x86_64.cc                      |  110 ++++++++++++------
 15 files changed, 699 insertions(+), 105 deletions(-)
 create mode 100644 gold/testsuite/ehdr_start_def.cc
 create mode 100644 gold/testsuite/ehdr_start_test.cc
 create mode 100644 gold/testsuite/ehdr_start_test.t
 create mode 100755 gold/testsuite/ehdr_start_test_4.sh

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