mirror of
https://github.com/bminor/binutils-gdb.git
synced 2025-12-06 07:33:08 +00:00
1d506c26d9
This commit is the result of the following actions:
- Running gdb/copyright.py to update all of the copyright headers to
include 2024,
- Manually updating a few files the copyright.py script told me to
update, these files had copyright headers embedded within the
file,
- Regenerating gdbsupport/Makefile.in to refresh it's copyright
date,
- Using grep to find other files that still mentioned 2023. If
these files were updated last year from 2022 to 2023 then I've
updated them this year to 2024.
I'm sure I've probably missed some dates. Feel free to fix them up as
you spot them.
120 lines
3.2 KiB
C
120 lines
3.2 KiB
C
/* Readline support for Python.
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Copyright (C) 2012-2024 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "python-internal.h"
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#include "top.h"
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#include "cli/cli-utils.h"
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/* Readline function suitable for PyOS_ReadlineFunctionPointer, which
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is used for Python's interactive parser and raw_input. In both
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cases, sys_stdin and sys_stdout are always stdin and stdout
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respectively, as far as I can tell; they are ignored and
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command_line_input is used instead. */
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static char *
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gdbpy_readline_wrapper (FILE *sys_stdin, FILE *sys_stdout,
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#if PY_MAJOR_VERSION == 3 && PY_MINOR_VERSION >= 4
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const char *prompt)
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#else
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char *prompt)
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#endif
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{
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int n;
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const char *p = NULL;
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std::string buffer;
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char *q;
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try
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{
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p = command_line_input (buffer, prompt, "python");
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}
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/* Handle errors by raising Python exceptions. */
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catch (const gdb_exception_forced_quit &e)
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{
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quit_force (NULL, 0);
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}
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catch (const gdb_exception &except)
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{
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/* Detect user interrupt (Ctrl-C). */
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if (except.reason == RETURN_QUIT)
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return NULL;
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/* This readline callback is called without the GIL held. */
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gdbpy_gil gil;
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gdbpy_convert_exception (except);
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return NULL;
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}
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/* Detect EOF (Ctrl-D). */
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if (p == NULL)
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{
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q = (char *) PyMem_RawMalloc (1);
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if (q != NULL)
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q[0] = '\0';
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return q;
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}
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n = strlen (p);
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/* Copy the line to Python and return. */
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q = (char *) PyMem_RawMalloc (n + 2);
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if (q != NULL)
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{
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strcpy (q, p);
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q[n] = '\n';
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q[n + 1] = '\0';
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}
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return q;
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}
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/* Initialize Python readline support. */
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static int CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION
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gdbpy_initialize_gdb_readline (void)
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{
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/* Python's readline module conflicts with GDB's use of readline
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since readline is not reentrant. Ideally, a reentrant wrapper to
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GDB's readline should be implemented to replace Python's readline
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and prevent conflicts. For now, this file implements a
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sys.meta_path finder that simply fails to import the readline
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module. */
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if (PyRun_SimpleString ("\
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import sys\n\
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\n\
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class GdbRemoveReadlineFinder:\n\
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def find_module(self, fullname, path=None):\n\
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if fullname == 'readline' and path is None:\n\
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return self\n\
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return None\n\
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\n\
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def load_module(self, fullname):\n\
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raise ImportError('readline module disabled under GDB')\n\
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\n\
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sys.meta_path.append(GdbRemoveReadlineFinder())\n\
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") == 0)
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PyOS_ReadlineFunctionPointer = gdbpy_readline_wrapper;
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return 0;
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}
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GDBPY_INITIALIZE_FILE (gdbpy_initialize_gdb_readline);
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