[SCM] archer-tromey-python: [python] python-utils.c (python_string_to_unicode): Always return a new reference.

[pmuldoon@sourceware.org]

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- Log -----------------------------------------------------------------
commit b5235efef9aa1d619d8a5defc5aa1219dff76d3d
Author: Phil Muldoon <pmuldoon@redhat.com>
Date:   Thu Feb 26 08:44:03 2009 +0000

    [python] python-utils.c (python_string_to_unicode): Always return  a new reference.
    
    2009-02-26  Phil Muldoon  <pmuldoon@redhat.com>
    
                * python/python-utils.c (python_string_to_unicode): Always return
                 a new reference.
                 (python_string_to_target_string): Decrement transient python
                 instance.
                 (python_string_to_host_string): Likewise.

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

Summary of changes:
 gdb/python/python-utils.c |   16 +++++++++++++---
 1 files changed, 13 insertions(+), 3 deletions(-)

First 500 lines of diff:
diff --git a/gdb/python/python-utils.c b/gdb/python/python-utils.c
index c6c305f..f9c9486 100644
--- a/gdb/python/python-utils.c
+++ b/gdb/python/python-utils.c
@@ -82,7 +82,11 @@ python_string_to_unicode (PyObject *obj)
   /* If obj is already a unicode string, just return it.
      I wish life was always that simple...  */
   if (PyUnicode_Check (obj))
-    unicode_str = obj;
+    {
+      unicode_str = obj;
+      Py_INCREF (obj);
+    }
+  
   else if (PyString_Check (obj))
     unicode_str = PyUnicode_FromEncodedObject (obj, host_charset (), NULL);
   else
@@ -137,12 +141,15 @@ char *
 python_string_to_target_string (PyObject *obj)
 {
   PyObject *str;
+  char *result;
 
   str = python_string_to_unicode (obj);
   if (str == NULL)
     return NULL;
 
-  return unicode_to_target_string (str);
+  result = unicode_to_target_string (str);
+  Py_DECREF (str);
+  return result;
 }
 
 /* Converts a python string (8-bit or unicode) to a target string in
@@ -153,12 +160,15 @@ char *
 python_string_to_host_string (PyObject *obj)
 {
   PyObject *str;
+  char *result;
 
   str = python_string_to_unicode (obj);
   if (str == NULL)
     return NULL;
 
-  return unicode_to_encoded_string (str, host_charset ());
+  result = unicode_to_encoded_string (str, host_charset ()); 
+  Py_DECREF (str);
+  return result;
 }
 
 /* Converts a target string of LENGTH bytes in the target's charset to a


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