[PATCH] python: accept address and explicit locations in gdb.decode_line

[Markus Metzger <markus dot t dot metzger at intel dot com>]

The gdb.decode_line python function is documented to support the same location
expressions as the "break" command.  It currently expects a linespec location.

Instead of creating a linespec location directly, create the location via
string_to_event_location_basic.

It's not clear to me whether I should use python_language or current_language,
though.  Is there some comment that explains it?

2016-06-20  Markus Metzger  <markus.t.metzger@intel.com>

gdb/
	* python/python.c (gdbpy_decode_line): Call
	string_to_event_location_basic.

testsuite/
	* gdb.python/python.exp: Test decode_line("*0").
---
 gdb/python/python.c                 | 2 +-
 gdb/testsuite/gdb.python/python.exp | 7 +++++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/gdb/python/python.c b/gdb/python/python.c
index 1f1fece..7bee890 100644
--- a/gdb/python/python.c
+++ b/gdb/python/python.c
@@ -738,7 +738,7 @@ gdbpy_decode_line (PyObject *self, PyObject *args)
 
   if (arg != NULL)
     {
-      location = new_linespec_location (&arg);
+      location = string_to_event_location_basic (&arg, python_language);
       make_cleanup_delete_event_location (location);
     }
 
diff --git a/gdb/testsuite/gdb.python/python.exp b/gdb/testsuite/gdb.python/python.exp
index 3f8c46f..4072fa3 100644
--- a/gdb/testsuite/gdb.python/python.exp
+++ b/gdb/testsuite/gdb.python/python.exp
@@ -251,6 +251,13 @@ gdb_py_test_silent_cmd {python symtab = gdb.decode_line ("func1,func2")} \
     "test decode_line func1,func2" 1
 gdb_test {python print (symtab[0])} ",func2" "stop at comma in linespec"
 
+gdb_py_test_silent_cmd "python symtab = gdb.decode_line(\"*0\")" "Test decode_line *0" 1
+gdb_test "python print (len(symtab))" "2" "Test decode_line *0 result length"
+gdb_test "python print (symtab\[0\])" "None" "Test decode_line *0 unparsed"
+gdb_test "python print (len(symtab\[1\]))" "1" "Test decode_line *0 locations length"
+gdb_test "python print (symtab\[1\]\[0\].symtab)" "None" "Test decode_line *0 filename"
+gdb_test "python print (symtab\[1\]\[0\].pc)" "0" "Test decode_line *0 pc"
+
 # gdb.write
 gdb_test "python print (sys.stderr)" ".*gdb.GdbOutputErrorFile (instance|object) at.*" "Test stderr location"
 gdb_test "python print (sys.stdout)" ".*gdb.GdbOutputFile (instance|object) at.*" "Test stdout location"
-- 
1.8.3.1