2009-06-23 Sami Wagiaalla <swagiaal@redhat.com>

       * dwarf2read.c (process_die): Handle import statements
       (DW_TAG_imported_declaration, case DW_TAG_imported_module)
       (read_import_statement): New.
       (read_func_scope): Update using_directives to point to current context
       (read_lexical_block_scope): Ditto.
       * cp-support.h: Added prototype for cp_add_using.
       * cp-namespace.c: Removed local context_stack.
       (cp_initialize_namespace): Deleted.
       (cp_finalize_namespace): Deleted.
       (cp_add_using_directive): Use using_directives instead of using_list.
       (cp_add_using): No longer static.
       * buildsym.h: Created global using_direct variable.
       Created using_direct variable in context_stack.
       * buildsym.c (finish_block): Set using directives for the block under
       construction.
       (start_symtab): Removed call to cp_initialize_namespace().
       (end_symtab): Removed call to cp_finalize_namespace().
       (push_context): Save and reset using_directives.
       * block.c (block_using): Return using directives for given
       block instead of static block.

2009-06-23  Sami Wagiaalla  <swagiaal@redhat.com>

       * gdb.cp/namespace-using.exp: New test.
       * gdb.cp/namespace-using.cc: New test.

3 files changed, 137 insertions, 0 deletions

diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index f9ce48d..8732519 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2009-06-23  Sami Wagiaalla  <swagiaal@redhat.com>
+
+	* gdb.cp/namespace-using.exp: New test.
+	* gdb.cp/namespace-using.cc: New test.
+
 2009-05-20  Joel Brobecker  <brobecker@adacore.com>
 
 	* gdb.ada/variant_record_packed_array: New testcase.
diff --git a/gdb/testsuite/gdb.cp/namespace-using.cc b/gdb/testsuite/gdb.cp/namespace-using.cc
new file mode 100644
index 0000000..4786fd5
--- /dev/null
+++ b/gdb/testsuite/gdb.cp/namespace-using.cc
@@ -0,0 +1,45 @@
+namespace A
+{
+  int _a = 1;
+  int x = 2;
+}
+
+int marker4(){
+	using A::x;
+	return 0;
+}
+
+int marker3(){
+	return marker4();
+}
+
+int marker2()
+{
+  namespace B = A;
+  B::_a;
+  return marker3();
+}
+
+int marker1()
+{
+  int total = 0;
+  {
+    int b = 1;
+    {
+      using namespace A;
+      int c = 2;
+      {
+        int d = 3;
+        total = _a + b + c + d + marker2(); // marker1 stop
+      }
+    }
+  }
+  return total;
+}
+
+int main()
+{
+  using namespace A;
+  _a;
+  return marker1();
+}
diff --git a/gdb/testsuite/gdb.cp/namespace-using.exp b/gdb/testsuite/gdb.cp/namespace-using.exp
new file mode 100644
index 0000000..f24973f
--- /dev/null
+++ b/gdb/testsuite/gdb.cp/namespace-using.exp
@@ -0,0 +1,87 @@
+# Copyright 2008 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+if $tracelevel then {
+    strace $tracelevel
+}
+
+set prms_id 0
+set bug_id 0
+
+set testfile namespace-using
+set srcfile ${testfile}.cc
+set binfile ${objdir}/${subdir}/${testfile}
+if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug c++}] != "" } {
+    untested "Couldn't compile test program"
+    return -1
+}
+
+# Get things started.
+
+gdb_exit
+gdb_start
+gdb_reinitialize_dir $srcdir/$subdir
+gdb_load ${binfile}
+
+############################################
+# test printing of namespace imported within
+# the function.
+
+if ![runto_main] then {
+    perror "couldn't run to breakpoint main"
+    continue
+}
+
+gdb_test "print _a" "= 1"
+
+############################################
+# test printing of namespace imported into 
+# a scope containing the pc.
+
+gdb_breakpoint [gdb_get_line_number "marker1 stop"]
+gdb_continue_to_breakpoint "marker1 stop"
+
+gdb_test "print _a" "= 1" "print _a in a nested scope"
+
+############################################
+# Test printing of namespace aliases
+
+setup_kfail "gdb/7935" "*-*-*"
+if ![runto marker2] then {
+    perror "couldn't run to breakpoint marker2"
+    continue
+}
+
+gdb_test "print B::a" "= 1"
+
+############################################
+# Test that names are not printed when they 
+# are not imported
+
+gdb_breakpoint "marker3"
+gdb_continue_to_breakpoint "marker3"
+
+gdb_test "print _a" "No symbol \"_a\" in current context." "Print a without import"
+
+############################################
+# Test printing of individually imported elements
+
+setup_kfail "gdb/7936" "*-*-*"
+if ![runto marker4] then {
+    perror "couldn't run to breakpoint marker4"
+    continue
+}
+
+gdb_test "print x" "= 2"