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[gdb/python] Ensure locale is restored in do_start_initialization

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I noticed in do_start_initialization:
...
  std::string oldloc = setlocale (LC_ALL, NULL);
  setlocale (LC_ALL, "");
  ...
  if (count == (size_t) -1)
    {
      fprintf (stderr, "Could not convert python path to string\n");
      return false;
    }
  setlocale (LC_ALL, oldloc.c_str ());
...
that the old locale is not restored if the "return false" is triggered.

Fix this by using SCOPE_EXIT.

Tested on aarch64-linux.

Approved-By: Tom Tromey <tom@tromey.com>
This commit is contained in:
Tom de Vries 2024-11-22 17:34:50 +01:00
parent 461248c143
commit 8a7f13063a
1 changed files with 14 additions and 11 deletions
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25
gdb/python/python.c
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@ -2331,17 +2331,20 @@ do_start_initialization ()
for Python versions that do not duplicate program_name. */
static wchar_t *progname_copy;
std::string oldloc = setlocale (LC_ALL, NULL);
setlocale (LC_ALL, "");
size_t progsize = strlen (progname.get ());
progname_copy = XNEWVEC (wchar_t, progsize + 1);
size_t count = mbstowcs (progname_copy, progname.get (), progsize + 1);
if (count == (size_t) -1)
{
fprintf (stderr, "Could not convert python path to string\n");
return false;
}
setlocale (LC_ALL, oldloc.c_str ());
{
std::string oldloc = setlocale (LC_ALL, NULL);
SCOPE_EXIT { setlocale (LC_ALL, oldloc.c_str ()); };
setlocale (LC_ALL, "");
size_t progsize = strlen (progname.get ());
progname_copy = XNEWVEC (wchar_t, progsize + 1);
size_t count = mbstowcs (progname_copy, progname.get (), progsize + 1);
if (count == (size_t) -1)
{
fprintf (stderr, "Could not convert python path to string\n");
return false;
}
}
/* Py_SetProgramName was deprecated in Python 3.11. Use PyConfig
mechanisms for Python 3.10 and newer. */