feat(debugging): move gdbinit generation to CMake

This feature is useful for 3rd-party software to run GDB with predefined
options that described in project_description.json file

allow to pass custom options to "idf.py gdb":

  --gdb-commands: command line arguments for gdb. (without changes)
  -ex: pass command to gdb.
  -x: pass gdbinit file to gdb. Alias for old --gdbinit command

tools/test_apps/system/gdb/pytest_gdb.py

@@ -1,21 +1,15 @@
-# SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-FileCopyrightText: 2022-2024 Espressif Systems (Shanghai) CO LTD
 # SPDX-License-Identifier: Unlicense OR CC0-1.0
+import json
 import logging
 import os
 import re
 import subprocess
-import sys
 
 import pexpect
 import pytest
 from pytest_embedded_idf import IdfDut
 
-try:
-    from idf_py_actions.debug_ext import get_openocd_arguments
-except ModuleNotFoundError:
-    sys.path.append(os.path.join(os.path.dirname(__file__), '..', '..', '..'))
-    from idf_py_actions.debug_ext import get_openocd_arguments
-
 
 @pytest.mark.supported_targets
 @pytest.mark.jtag
@@ -27,8 +21,12 @@ def test_idf_gdb(dut: IdfDut) -> None:
     # Don't need to have output from UART anymore
     dut.serial.stop_redirect_thread()
 
+    desc_path = os.path.join(dut.app.binary_path, 'project_description.json')
+    with open(desc_path, 'r') as f:
+        project_desc = json.load(f)
+
     with open(os.path.join(dut.logdir, 'ocd.txt'), 'w') as ocd_log:
-        cmd = ['openocd', *get_openocd_arguments(dut.target).split()]
+        cmd = ['openocd'] + project_desc['debug_arguments_openocd'].split()
         openocd_scripts = os.getenv('OPENOCD_SCRIPTS')
         if openocd_scripts:
             cmd.extend(['-s', openocd_scripts])
@@ -37,18 +35,14 @@ def test_idf_gdb(dut: IdfDut) -> None:
         ocd = subprocess.Popen(cmd, stdout=ocd_log, stderr=ocd_log)
 
         try:
-            gdb_env = os.environ.copy()
-            gdb_env['ESP_IDF_GDB_TESTING'] = '1'
-
             with open(os.path.join(dut.logdir, 'gdb.txt'), 'w') as gdb_log, \
                 pexpect.spawn(f'idf.py -B {dut.app.binary_path} gdb --batch',
-                              env=gdb_env,
                               timeout=60,
                               logfile=gdb_log,
                               encoding='utf-8',
                               codec_errors='ignore') as p:
                 p.expect(re.compile(r'add symbol table from file.*bootloader.elf'))
-                p.expect(re.compile(r'add symbol table from file.*rom.elf'))
+                p.expect(re.compile(r'add symbol table from file.*rom.elf'))  # if fail here: add target support here https://github.com/espressif/esp-rom-elfs
                 p.expect_exact('hit Temporary breakpoint 1, app_main ()')
         finally:
             ocd.terminate()