gdb and binutils branch master updated. fe28be73c7c22cc6eb1c3573f1be65c75e37d9b7

[kseitz at sourceware dot org]

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https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=fe28be73c7c22cc6eb1c3573f1be65c75e37d9b7

commit fe28be73c7c22cc6eb1c3573f1be65c75e37d9b7
Author: Keith Seitz <keiths@redhat.com>
Date:   Wed Apr 16 14:12:22 2014 -0700

    PR c++/16597
    
    If lookup_symbol_file tries to locate a member variable with NULL name:
    
          /* A simple lookup failed.  Check if the symbol was defined in
             a base class.  */
    
          cleanup = make_cleanup (null_cleanup, NULL);
    
          /* Find the name of the class and the name of the method,
             variable, etc.  */
          prefix_len = cp_entire_prefix_len (name);
    
          /* If no prefix was found, search "this".  */
          if (prefix_len == 0)
            {
              struct type *type;
              struct symbol *this;
    
             this = lookup_language_this (language_def (language_cplus), block);
              if (this == NULL)
                {
                  do_cleanups (cleanup);
                  return NULL;
                }
    
              type = check_typedef (TYPE_TARGET_TYPE (SYMBOL_TYPE (this)));
              klass = xstrdup (TYPE_NAME (type));
              nested = xstrdup (name);
            }
    
    TYPE_NAME (type) is NULL, so xstrdup (NULL) and boom!
    
    This can happen, e.g., with clang++.  See testsuite/gdb.cp/namelessclass.exp
    or the bugzilla report.
    
    This patch simply adds a fencepost against this case, allowing the caller
    of lookup_symbol_file to search other blocks for the right symbol.

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

Summary of changes:
 gdb/testsuite/gdb.cp/namelessclass.S   |  890 ++++++++++++++++++++++++++++++++
 gdb/testsuite/gdb.cp/namelessclass.cc  |   46 ++
 gdb/testsuite/gdb.cp/namelessclass.exp |   52 ++
 3 files changed, 988 insertions(+), 0 deletions(-)
 create mode 100644 gdb/testsuite/gdb.cp/namelessclass.S
 create mode 100644 gdb/testsuite/gdb.cp/namelessclass.cc
 create mode 100644 gdb/testsuite/gdb.cp/namelessclass.exp


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