[PATCH] Make "backtrace" doesn't print python stack if init python dir get fail

[Hui Zhu]

On 12/03/13 00:05, Tom Tromey wrote:
>>>>>> "Hui" == Hui Zhu <hui_zhu@mentor.com> writes:
>
> Hui> So if init python dir get fail, "backtrace" will print python
> Hui> stack.  But GDB already output error when it start.  I make a patch
> Hui> let it doesn't print python stack if init python dir get fail.
>
> Perhaps instead the setting of gdb_python_initialized should be moved to
> finish_python_initialization.
>
> Tom
>

Hi Tom,

I make a new patch according to your comments.
It setup gdb_python_initialized in finish_python_initialization.

I got a issue is ensure_python_env check gdb_python_initialized and throw error if it is 0.
So gdb_python_initialized to 0 will make some commands throw error when python dir has something error.
I removed this check in the patch.

This patch pass the regression test in x86_64 linux.

Please help me review it.

Thanks,
Hui

2013-12-03  Hui Zhu  <hui@codesourcery.com>

	* python/python.c (ensure_python_env): Remove check for
	"gdb_python_initialized".
	(_initialize_python): Remove setup of "gdb_python_initialized".
	(finish_python_initialization): Add setup of
	"gdb_python_initialized".

--- a/gdb/python/python.c
+++ b/gdb/python/python.c
@@ -150,10 +150,6 @@ ensure_python_env (struct gdbarch *gdbar
  {
    struct python_env *env = xmalloc (sizeof *env);
  
-  /* We should not ever enter Python unless initialized.  */
-  if (!gdb_python_initialized)
-    error (_("Python not initialized"));
-
    env->state = PyGILState_Ensure ();
    env->gdbarch = python_gdbarch;
    env->language = python_language;
@@ -1717,7 +1713,6 @@ message == an error message without a st
  
    make_final_cleanup (finalize_python, NULL);
  
-  gdb_python_initialized = 1;
    return;
  
   fail:
@@ -1807,6 +1802,9 @@ finish_python_initialization (void)
       variable.  */
  
    do_cleanups (cleanup);
+
+  gdb_python_initialized = 1;
+
    return;
  
   fail: