[Bug symtab/17564] lookup of static symbols should properly search each objfile in order

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https://sourceware.org/bugzilla/show_bug.cgi?id=17564

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- Log -----------------------------------------------------------------
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=af3768e945b188caa141e3285dc3eb84f440a673

commit af3768e945b188caa141e3285dc3eb84f440a673
Author: Doug Evans <xdje42@gmail.com>
Date:   Mon Nov 10 15:48:49 2014 -0800

    PR 17564: Fix objfile search order for static symbols.

    When searching static symbols, gdb would search over all
    expanded symtabs of all objfiles, and if that fails only then
    would it search all partial/gdb_index tables of all objfiles.
    This means that the user could get a random instance of the
    symbol depending on what symtabs have been previously expanded.
    Now the search is consistent, searching each objfile completely
    before proceeding to the next one.

    gdb/ChangeLog:

        PR symtab/17564
        * symtab.c (lookup_symbol_in_all_objfiles): Delete.
        (lookup_static_symbol): Move definition to new location and rewrite.
        (lookup_symbol_in_objfile): New function.
        (lookup_symbol_global_iterator_cb): Call it.

    gdb/testsuite/ChangeLog:

        PR symtab/17564
        * gdb.base/symtab-search-order.exp: New file.
        * gdb.base/symtab-search-order.c: New file.
        * gdb.base/symtab-search-order-1.c: New file.
        * gdb.base/symtab-search-order-shlib-1.c: New file.

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

Summary of changes:
 gdb/ChangeLog                                      |    8 ++
 gdb/symtab.c                                       |   97 +++++++++-----------
 gdb/testsuite/ChangeLog                            |    8 ++
 gdb/testsuite/gdb.base/symtab-search-order-1.c     |    1 +
 .../gdb.base/symtab-search-order-shlib-1.c         |    7 ++
 gdb/testsuite/gdb.base/symtab-search-order.c       |   11 ++
 gdb/testsuite/gdb.base/symtab-search-order.exp     |   59 ++++++++++++
 7 files changed, 137 insertions(+), 54 deletions(-)
 create mode 100644 gdb/testsuite/gdb.base/symtab-search-order-1.c
 create mode 100644 gdb/testsuite/gdb.base/symtab-search-order-shlib-1.c
 create mode 100644 gdb/testsuite/gdb.base/symtab-search-order.c
 create mode 100644 gdb/testsuite/gdb.base/symtab-search-order.exp

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