[gold commit] PR 19823: Don't allow COPY relocs to protected symbols

[Cary Coutant <ccoutant at gmail dot com>]

2016-05-19  Cary Coutant  <ccoutant@gmail.com>

        PR gold/19823
        * copy-relocs.cc (Copy_relocs::make_copy_reloc): Add object
        parameter; check for protected symbol.
        * copy-relocs.h (Copy_relocs::make_copy_reloc): Add object parameter.
        * mips.cc (Mips_copy_relocs): Adjust call to make_copy_reloc.
        * symtab.cc (Symbol::init_fields): Initialize is_protected_.
        (Symbol_table::add_from_dynobj): Mark protected symbols.
        * symtab.h (Symbol::is_protected): New method.
        (Symbol::set_is_protected): New method.
        (Symbol::is_protected_): New data member.

        * testsuite/Makefile.am (copy_test_protected): New test.
        * testsuite/Makefile.in: Regenerate.
        * testsuite/copy_test.cc (main): Add legal reference to protected
        symbol.
        * testsuite/copy_test_v1.cc (main): Likewise.
        * testsuite/copy_test_2.cc (ip): Add protected symbol.
        * testsuite/copy_test_protected.cc: New test source file.
        * testsuite/copy_test_protected.sh: New test script.

Attachment: pr19823.patch
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