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[PATCH] python: Fix memleak in do_start_initialization
- From: Simon Marchi <simon dot marchi at polymtl dot ca>
- To: gdb-patches at sourceware dot org
- Cc: Simon Marchi <simon dot marchi at polymtl dot ca>
- Date: Sat, 25 Nov 2017 22:53:08 -0500
- Subject: [PATCH] python: Fix memleak in do_start_initialization
- Authentication-results: sourceware.org; auth=none
While playing with valgrind, I noticed that the progname variable in
do_start_initialization is not being freed (concat returns a malloc'ed
string). Use a unique_xmalloc_ptr to manage it.
gdb/ChangeLog:
* python/python.c (do_start_initialization): Change progname
type to gdb::unique_xmalloc_ptr.
---
gdb/python/python.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/gdb/python/python.c b/gdb/python/python.c
index 5f152611e8..f17ac36569 100644
--- a/gdb/python/python.c
+++ b/gdb/python/python.c
@@ -1658,7 +1658,7 @@ finalize_python (void *ignore)
static bool
do_start_initialization ()
{
- char *progname;
+ gdb::unique_xmalloc_ptr<char> progname;
#ifdef IS_PY3K
int i;
size_t progsize, count;
@@ -1672,19 +1672,19 @@ do_start_initialization ()
/foo/bin/python
/foo/lib/pythonX.Y/...
This must be done before calling Py_Initialize. */
- progname = concat (ldirname (python_libdir).c_str (), SLASH_STRING, "bin",
- SLASH_STRING, "python", (char *) NULL);
+ progname.reset (concat (ldirname (python_libdir).c_str (), SLASH_STRING,
+ "bin", SLASH_STRING, "python", (char *) NULL));
#ifdef IS_PY3K
std::string oldloc = setlocale (LC_ALL, NULL);
setlocale (LC_ALL, "");
- progsize = strlen (progname);
+ progsize = strlen (progname.get ());
progname_copy = (wchar_t *) PyMem_Malloc ((progsize + 1) * sizeof (wchar_t));
if (!progname_copy)
{
fprintf (stderr, "out of memory\n");
return false;
}
- count = mbstowcs (progname_copy, progname, progsize + 1);
+ count = mbstowcs (progname_copy, progname.get (), progsize + 1);
if (count == (size_t) -1)
{
fprintf (stderr, "Could not convert python path to string\n");
--
2.15.0