gdb and binutils branch master updated. b50c861487bb7d71185777193a9246bac81e4f26

[kseitz at sourceware dot org]

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commit b50c861487bb7d71185777193a9246bac81e4f26
Author: Keith Seitz <keiths@redhat.com>
Date:   Mon Apr 14 15:47:15 2014 -0700

    Remove symbol_matches_domain. This fixes
    PR c++/16253.
    
    symbol_matches_domain was permitting searches for a VAR_DOMAIN
    symbol to also match STRUCT_DOMAIN symbols for languages like C++
    where STRUCT_DOMAIN symbols also define a typedef of the same name,
    e.g., "struct foo {}" introduces a typedef of the name "foo".
    
    Problems occur if there exists both a VAR_DOMAIN and STRUCT_DOMAIN
    symbol of the same name. Then it is essentially a race between which
    symbol is found first. The other symbol is obscurred.
    [This is a relatively common idiom: enum e { ... } e;]
    
    This patchset moves this "language defines a typedef" logic to
    lookup_symbol[_in_language], looking first for a symbol in the given
    domain and falling back to searching STRUCT_DOMAIN when/if appropriate.
    
    2014-04-14  Keith Seitz  <keiths@redhat.com>
    
    	PR c++/16253
    	* ada-lang.c (ada_symbol_matches_domain): Moved here and renamed
    	from symbol_matches_domain in symtab.c. All local callers
    	of symbol_matches_domain updated.
    	(standard_lookup): If DOMAIN is VAR_DOMAIN and no symbol is found,
    	search STRUCT_DOMAIN.
    	(ada_find_any_type_symbol): Do not search STRUCT_DOMAIN
    	independently.  standard_lookup will do that automatically.
    	* cp-namespace.c (cp_lookup_symbol_nonlocal): Explain when/why
    	VAR_DOMAIN searches may return a STRUCT_DOMAIN match.
    	(cp_lookup_symbol_in_namespace): Likewise.
    	If no VAR_DOMAIN symbol is found, search STRUCT_DOMAIN.
    	(cp_lookup_symbol_exports): Explain when/why VAR_DOMAIN searches
    	may return a STRUCT_DOMAIN match.
    	(lookup_symbol_file): Search for the class name in STRUCT_DOMAIN.
    	* cp-support.c: Include language.h.
    	(inspect_type): Explicitly search STRUCT_DOMAIN before searching
    	VAR_DOMAIN.
    	* psymtab.c (match_partial_symbol): Compare the requested
    	domain with the symbol's domain directly.
    	(lookup_partial_symbol): Likewise.
    	* symtab.c (lookup_symbol_in_language): Explain when/why
    	VAR_DOMAIN searches may return a STRUCT_DOMAIN match.
    	If no VAR_DOMAIN symbol is found, search STRUCT_DOMAIN for
    	appropriate languages.
    	(symbol_matches_domain): Renamed `ada_symbol_matches_domain'
    	and moved to ada-lang.c
    	(lookup_block_symbol): Explain that this function only returns
    	symbol matching the requested DOMAIN.
    	Compare the requested domain with the symbol's domain directly.
    	(iterate_over_symbols): Compare the requested domain with the
    	symbol's domain directly.
    	* symtab.h (symbol_matches_domain): Remove.
    
    2014-04-14  Keith Seitz  <keiths@redhat.com>
    
    	PR c++/16253
    	* gdb.cp/var-tag.cc: New file.
    	* gdb.cp/var-tag.exp: New file.
    	* gdb.dwarf2/dw2-ada-ffffffff.exp: Set the language to C++.
    	* gdb.dwarf2/dw2-anon-mptr.exp: Likewise.
    	* gdb.dwarf2/dw2-double-set-die-type.exp: Likewise.
    	* gdb.dwarf2/dw2-inheritance.exp: Likewise.

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

Summary of changes:
 gdb/ChangeLog                                      |   36 +++++++
 gdb/ada-lang.c                                     |   65 ++++++++++---
 gdb/cp-namespace.c                                 |   39 +++++++--
 gdb/cp-support.c                                   |   25 +++++-
 gdb/psymtab.c                                      |   15 +--
 gdb/symtab.c                                       |   60 ++++++------
 gdb/symtab.h                                       |    4 -
 gdb/testsuite/ChangeLog                            |   10 ++
 gdb/testsuite/gdb.cp/var-tag.cc                    |   44 +++++++++
 gdb/testsuite/gdb.cp/var-tag.exp                   |   99 ++++++++++++++++++++
 gdb/testsuite/gdb.dwarf2/dw2-ada-ffffffff.exp      |    4 +
 gdb/testsuite/gdb.dwarf2/dw2-anon-mptr.exp         |    2 +
 .../gdb.dwarf2/dw2-double-set-die-type.exp         |    1 +
 gdb/testsuite/gdb.dwarf2/dw2-inheritance.exp       |    1 +
 14 files changed, 339 insertions(+), 66 deletions(-)
 create mode 100644 gdb/testsuite/gdb.cp/var-tag.cc
 create mode 100644 gdb/testsuite/gdb.cp/var-tag.exp


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