[Bug ld/14962] Change of behaviour (symbols in linker file) in 2.22.90.20120924

[cvs-commit at gcc dot gnu.org]

http://sourceware.org/bugzilla/show_bug.cgi?id=14962

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https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=fa72205cb90527fd34753203993859907a53ead2

commit fa72205cb90527fd34753203993859907a53ead2
Author: Alan Modra <address@hidden>
Date:   Mon Jan 20 21:28:42 2014 +1030

    Allow self-assignment for absolute symbols defined in a linker script

    Modifies ld machinery tracking linker script assignments to notice all
    assignments, not just those symbols mentioned in DEFINED().

    ld/
        PR ld/14962
        * ldlang.h (struct lang_definedness_hash_entry): Add by_object and
        by_script.  Make iteration a single bit field.
        (lang_track_definedness, lang_symbol_definition_iteration): Delete.
        (lang_symbol_defined): Declare.
        * ldlang.c (lang_statement_iteration): Expand comment a little.
        (lang_init <lang_definedness_table>): Make it bigger.
        (lang_track_definedness, lang_symbol_definition): Delete.
        (lang_definedness_newfunc): Update.
        (lang_symbol_defined): New function.
        (lang_update_definedness): Create entries here.  Do track whether
        script definition of symbol is valid, even when also defined in
        an object file.
        * ldexp.c (fold_name <DEFINED>): Update.
        (fold_name <NAME>): Allow self-assignment for absolute symbols
        defined in a linker script.
    ld/testsuite/
        * ld-scripts/pr14962-2.d,
        * ld-scripts/pr14962-2.t: New test.
        * ld-scripts/expr.exp: Run it.

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

Summary of changes:
 ld/ChangeLog                        |   18 ++++++++
 ld/ldexp.c                          |   31 +++++++++++----
 ld/ldlang.c                         |   74 ++++++++++++-----------------------
 ld/ldlang.h                         |    7 ++-
 ld/testsuite/ChangeLog              |    6 +++
 ld/testsuite/ld-scripts/expr.exp    |    1 +
 ld/testsuite/ld-scripts/pr14962-2.d |   10 +++++
 ld/testsuite/ld-scripts/pr14962-2.t |   11 +++++
 8 files changed, 98 insertions(+), 60 deletions(-)
 create mode 100644 ld/testsuite/ld-scripts/pr14962-2.d
 create mode 100644 ld/testsuite/ld-scripts/pr14962-2.t

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