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Change python_run_simple_file to use gdbpy_ref 

This changes python_run_simple_file to use gdbpy_ref and
unique_xmalloc_ptr.  Thi fixes a latent bug in this function, where
the error path previously ran the cleanups and then referred to one of
the objects just freed.

2017-01-10  Tom Tromey  <tom@tromey.com>

	* python/python.c (python_run_simple_file): Use
	unique_xmalloc_ptr, gdbpy_ref.
This commit is contained in:
Tom Tromey 2016-11-12 12:08:17 -07:00
parent 2bd5759dcb
commit 9de10f6d53
2 changed files with 10 additions and 13 deletions
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5
gdb/ChangeLog
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@ -1,3 +1,8 @@
2017-01-10 Tom Tromey <tom@tromey.com>
* python/python.c (python_run_simple_file): Use
unique_xmalloc_ptr, gdbpy_ref.
2017-01-10 Tom Tromey <tom@tromey.com>
* python/py-prettyprint.c (print_stack_unless_memory_error)

18
gdb/python/python.c
View File

@ -349,25 +349,17 @@ python_run_simple_file (FILE *file, const char *filename)
#else /* _WIN32 */
char *full_path;
PyObject *python_file;
struct cleanup *cleanup;
/* Because we have a string for a filename, and are using Python to
open the file, we need to expand any tilde in the path first. */
full_path = tilde_expand (filename);
cleanup = make_cleanup (xfree, full_path);
python_file = PyFile_FromString (full_path, "r");
if (! python_file)
gdb::unique_xmalloc_ptr<char> full_path (tilde_expand (filename));
gdbpy_ref python_file (PyFile_FromString (full_path.get (), "r"));
if (python_file == NULL)
{
do_cleanups (cleanup);
gdbpy_print_stack ();
error (_("Error while opening file: %s"), full_path);
error (_("Error while opening file: %s"), full_path.get ());
}
make_cleanup_py_decref (python_file);
PyRun_SimpleFile (PyFile_AsFile (python_file), filename);
do_cleanups (cleanup);
PyRun_SimpleFile (PyFile_AsFile (python_file.get ()), filename);
#endif /* _WIN32 */
}