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bpo-36142: Rework error reporting in pymain_main() (GH-12113) 

Add a new _Py_INIT_EXIT() macro to be able to exit Python with an
exitcode using _PyInitError API. Rewrite function calls by
pymain_main() to use _PyInitError.

Changes:

* Remove _PyMain.err and _PyMain.status field
* Add _Py_INIT_EXIT() macro and _PyInitError.exitcode field.
* Rename _Py_FatalInitError() to _Py_ExitInitError().
This commit is contained in:
Victor Stinner 2019-03-01 12:14:41 +01:00 committed by GitHub
parent b9f0354efc
commit dfe884759d
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
8 changed files with 191 additions and 229 deletions
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11
Include/cpython/coreconfig.h
View File

@ -11,6 +11,7 @@ typedef struct {
const char *prefix;
const char *msg;
int user_err;
int exitcode;
} _PyInitError;
/* Almost all errors causing Python initialization to fail */
@ -22,16 +23,18 @@ typedef struct {
#endif
#define _Py_INIT_OK() \
(_PyInitError){.prefix = NULL, .msg = NULL, .user_err = 0}
(_PyInitError){.prefix = NULL, .msg = NULL, .user_err = 0, .exitcode = -1}
#define _Py_INIT_ERR(MSG) \
(_PyInitError){.prefix = _Py_INIT_GET_FUNC(), .msg = (MSG), .user_err = 0}
(_PyInitError){.prefix = _Py_INIT_GET_FUNC(), .msg = (MSG), .user_err = 0, .exitcode = -1}
/* Error that can be fixed by the user like invalid input parameter.
Don't abort() the process on such error. */
#define _Py_INIT_USER_ERR(MSG) \
(_PyInitError){.prefix = _Py_INIT_GET_FUNC(), .msg = (MSG), .user_err = 1}
(_PyInitError){.prefix = _Py_INIT_GET_FUNC(), .msg = (MSG), .user_err = 1, .exitcode = -1}
#define _Py_INIT_NO_MEMORY() _Py_INIT_USER_ERR("memory allocation failed")
#define _Py_INIT_EXIT(EXITCODE) \
(_PyInitError){.prefix = NULL, .msg = NULL, .user_err = 0, .exitcode = (EXITCODE)}
#define _Py_INIT_FAILED(err) \
(err.msg != NULL)
(err.msg != NULL || err.exitcode != -1)
/* _PyCoreConfig */

2
Include/cpython/pylifecycle.h
View File

@ -39,7 +39,7 @@ PyAPI_FUNC(_PyInitError) _Py_InitializeMainInterpreter(
PyAPI_FUNC(_PyInitError) _Py_InitializeFromConfig(
const _PyCoreConfig *config);
PyAPI_FUNC(void) _Py_NO_RETURN _Py_FatalInitError(_PyInitError err);
PyAPI_FUNC(void) _Py_NO_RETURN _Py_ExitInitError(_PyInitError err);
/* Py_PyAtExit is for the atexit module, Py_AtExit is for low-level
* exit functions.

358
Modules/main.c
View File

@ -329,11 +329,6 @@ typedef struct {
char **bytes_argv;
wchar_t **wchar_argv;
/* Exit status or "exit code": result of pymain_main() */
int status;
/* Error message if a function failed */
_PyInitError err;
/* non-zero is stdin is a TTY or if -i option is used */
int stdin_is_interactive;
int skip_first_line; /* -x option */
@ -342,9 +337,6 @@ typedef struct {
wchar_t *module; /* -m argument */
} _PyMain;
#define _PyMain_INIT {.err = _Py_INIT_OK()}
/* Note: _PyMain_INIT sets other fields to 0/NULL */
/* Non-zero if filename, command (-c) or module (-m) is set
on the command line */
@ -353,19 +345,7 @@ typedef struct {
|| pymain->module != NULL)
static wchar_t*
pymain_wstrdup(_PyMain *pymain, const wchar_t *str)
{
wchar_t *str2 = _PyMem_RawWcsdup(str);
if (str2 == NULL) {
pymain->err = _Py_INIT_NO_MEMORY();
return NULL;
}
return str2;
}
static int
static _PyInitError
pymain_init_cmdline_argv(_PyMain *pymain, _PyCoreConfig *config,
_PyCmdline *cmdline)
{
@ -376,8 +356,7 @@ pymain_init_cmdline_argv(_PyMain *pymain, _PyCoreConfig *config,
size_t size = sizeof(wchar_t*) * (pymain->argc + 1);
wchar_t** argv = (wchar_t **)PyMem_RawMalloc(size);
if (argv == NULL) {
pymain->err = _Py_INIT_NO_MEMORY();
return -1;
return _Py_INIT_NO_MEMORY();
}
for (int i = 0; i < pymain->argc; i++) {
@ -385,9 +364,8 @@ pymain_init_cmdline_argv(_PyMain *pymain, _PyCoreConfig *config,
wchar_t *arg = Py_DecodeLocale(pymain->bytes_argv[i], &len);
if (arg == NULL) {
_Py_wstrlist_clear(i, argv);
pymain->err = DECODE_LOCALE_ERR("command line arguments",
return DECODE_LOCALE_ERR("command line arguments",
(Py_ssize_t)len);
return -1;
}
argv[i] = arg;
}
@ -406,12 +384,12 @@ pymain_init_cmdline_argv(_PyMain *pymain, _PyCoreConfig *config,
else {
program = L"";
}
config->program = pymain_wstrdup(pymain, program);
config->program = _PyMem_RawWcsdup(program);
if (config->program == NULL) {
return -1;
return _Py_INIT_NO_MEMORY();
}
return 0;
return _Py_INIT_OK();
}
@ -562,26 +540,12 @@ _Py_wstrlist_append(int *len, wchar_t ***list, const wchar_t *str)
}
static int
pymain_wstrlist_append(_PyMain *pymain, int *len, wchar_t ***list, const wchar_t *str)
{
_PyInitError err = _Py_wstrlist_append(len, list, str);
if (_Py_INIT_FAILED(err)) {
pymain->err = err;
return -1;
}
return 0;
}
/* Parse the command line arguments
Return 0 on success.
Return 1 if parsing failed.
Set pymain->err and return -1 on other errors. */
static int
/* Parse the command line arguments */
static _PyInitError
pymain_parse_cmdline_impl(_PyMain *pymain, _PyCoreConfig *config,
_PyCmdline *cmdline)
_PyCmdline *cmdline, int *need_usage)
{
_PyInitError err;
_PyOS_ResetGetOpt();
do {
int longindex = -1;
@ -598,8 +562,7 @@ pymain_parse_cmdline_impl(_PyMain *pymain, _PyCoreConfig *config,
size_t len = wcslen(_PyOS_optarg) + 1 + 1;
wchar_t *command = PyMem_RawMalloc(sizeof(wchar_t) * len);
if (command == NULL) {
pymain->err = _Py_INIT_NO_MEMORY();
return -1;
return _Py_INIT_NO_MEMORY();
}
memcpy(command, _PyOS_optarg, (len - 2) * sizeof(wchar_t));
command[len - 2] = '\n';
@ -612,9 +575,9 @@ pymain_parse_cmdline_impl(_PyMain *pymain, _PyCoreConfig *config,
/* -m is the last option; following arguments
that look like options are left for the
module to interpret. */
pymain->module = pymain_wstrdup(pymain, _PyOS_optarg);
pymain->module = _PyMem_RawWcsdup(_PyOS_optarg);
if (pymain->module == NULL) {
return -1;
return _Py_INIT_NO_MEMORY();
}
break;
}
@ -632,7 +595,8 @@ pymain_parse_cmdline_impl(_PyMain *pymain, _PyCoreConfig *config,
} else {
fprintf(stderr, "--check-hash-based-pycs must be one of "
"'default', 'always', or 'never'\n");
return 1;
*need_usage = 1;
return _Py_INIT_OK();
}
break;
@ -701,20 +665,20 @@ pymain_parse_cmdline_impl(_PyMain *pymain, _PyCoreConfig *config,
break;
case 'W':
if (pymain_wstrlist_append(pymain,
&cmdline->nwarnoption,
err = _Py_wstrlist_append(&cmdline->nwarnoption,
&cmdline->warnoptions,
_PyOS_optarg) < 0) {
return -1;
_PyOS_optarg);
if (_Py_INIT_FAILED(err)) {
return err;
}
break;
case 'X':
if (pymain_wstrlist_append(pymain,
&config->nxoption,
err = _Py_wstrlist_append(&config->nxoption,
&config->xoptions,
_PyOS_optarg) < 0) {
return -1;
_PyOS_optarg);
if (_Py_INIT_FAILED(err)) {
return err;
}
break;
@ -730,7 +694,8 @@ pymain_parse_cmdline_impl(_PyMain *pymain, _PyCoreConfig *config,
default:
/* unknown argument: parsing failed */
return 1;
*need_usage = 1;
return _Py_INIT_OK();
}
} while (1);
@ -738,16 +703,21 @@ pymain_parse_cmdline_impl(_PyMain *pymain, _PyCoreConfig *config,
&& _PyOS_optind < pymain->argc
&& wcscmp(cmdline->argv[_PyOS_optind], L"-") != 0)
{
pymain->filename = pymain_wstrdup(pymain, cmdline->argv[_PyOS_optind]);
pymain->filename = _PyMem_RawWcsdup(cmdline->argv[_PyOS_optind]);
if (pymain->filename == NULL) {
return -1;
return _Py_INIT_NO_MEMORY();
}
}
if (pymain->command != NULL || pymain->module != NULL) {
/* Backup _PyOS_optind */
_PyOS_optind--;
}
/* -c and -m options are exclusive */
assert(!(pymain->command != NULL && pymain->module != NULL));
return 0;
return _Py_INIT_OK();
}
@ -888,9 +858,7 @@ config_init_warnoptions(_PyCoreConfig *config, _PyCmdline *cmdline)
}
/* Get warning options from PYTHONWARNINGS environment variable.
Return 0 on success.
Set pymain->err and return -1 on error. */
/* Get warning options from PYTHONWARNINGS environment variable. */
static _PyInitError
cmdline_init_env_warnoptions(_PyMain *pymain, const _PyCoreConfig *config,
_PyCmdline *cmdline)
@ -983,7 +951,7 @@ pymain_header(_PyMain *pymain, const _PyCoreConfig *config)
}
static int
static _PyInitError
pymain_init_core_argv(_PyMain *pymain, _PyCoreConfig *config, _PyCmdline *cmdline)
{
/* Copy argv to be able to modify it (to force -c/-m) */
@ -1001,8 +969,7 @@ pymain_init_core_argv(_PyMain *pymain, _PyCoreConfig *config, _PyCmdline *cmdlin
}
if (argv == NULL) {
pymain->err = _Py_INIT_NO_MEMORY();
return -1;
return _Py_INIT_NO_MEMORY();
}
wchar_t *arg0 = NULL;
@ -1018,8 +985,7 @@ pymain_init_core_argv(_PyMain *pymain, _PyCoreConfig *config, _PyCmdline *cmdlin
arg0 = _PyMem_RawWcsdup(arg0);
if (arg0 == NULL) {
_Py_wstrlist_clear(argc, argv);
pymain->err = _Py_INIT_NO_MEMORY();
return -1;
return _Py_INIT_NO_MEMORY();
}
assert(argc >= 1);
@ -1029,7 +995,7 @@ pymain_init_core_argv(_PyMain *pymain, _PyCoreConfig *config, _PyCmdline *cmdlin
config->argc = argc;
config->argv = argv;
return 0;
return _Py_INIT_OK();
}
@ -1104,7 +1070,7 @@ pymain_run_startup(_PyMain *pymain, _PyCoreConfig *config, PyCompilerFlags *cf)
}
static void
static int
pymain_run_file(_PyMain *pymain, _PyCoreConfig *config, PyCompilerFlags *cf)
{
const wchar_t *filename = pymain->filename;
@ -1121,8 +1087,7 @@ pymain_run_file(_PyMain *pymain, _PyCoreConfig *config, PyCompilerFlags *cf)
fprintf(stderr, "%ls: can't open file '%s': [Errno %d] %s\n",
config->program, cfilename, err, strerror(err));
PyMem_RawFree(cfilename_buffer);
pymain->status = 2;
return;
return 2;
}
if (pymain->skip_first_line) {
@ -1141,17 +1106,15 @@ pymain_run_file(_PyMain *pymain, _PyCoreConfig *config, PyCompilerFlags *cf)
fprintf(stderr,
"%ls: '%ls' is a directory, cannot continue\n",
config->program, filename);
pymain->status = 1;
fclose(fp);
return;
return 1;
}
/* call pending calls like signal handlers (SIGINT) */
if (Py_MakePendingCalls() == -1) {
PyErr_Print();
pymain->status = 1;
fclose(fp);
return;
return 1;
}
PyObject *unicode, *bytes = NULL;
@ -1173,11 +1136,11 @@ pymain_run_file(_PyMain *pymain, _PyCoreConfig *config, PyCompilerFlags *cf)
/* PyRun_AnyFileExFlags(closeit=1) calls fclose(fp) before running code */
int run = PyRun_AnyFileExFlags(fp, filename_str, 1, cf);
Py_XDECREF(bytes);
pymain->status = (run != 0);
return (run != 0);
}
static void
static int
pymain_run_stdin(_PyMain *pymain, _PyCoreConfig *config, PyCompilerFlags *cf)
{
if (pymain->stdin_is_interactive) {
@ -1190,17 +1153,16 @@ pymain_run_stdin(_PyMain *pymain, _PyCoreConfig *config, PyCompilerFlags *cf)
/* call pending calls like signal handlers (SIGINT) */
if (Py_MakePendingCalls() == -1) {
PyErr_Print();
pymain->status = 1;
return;
return 1;
}
int run = PyRun_AnyFileExFlags(stdin, "<stdin>", 0, cf);
pymain->status = (run != 0);
return (run != 0);
}
static void
pymain_repl(_PyMain *pymain, _PyCoreConfig *config, PyCompilerFlags *cf)
pymain_repl(_PyMain *pymain, _PyCoreConfig *config, PyCompilerFlags *cf, int *exitcode)
{
/* Check this environment variable at the end, to give programs the
opportunity to set it from Python. */
@ -1218,100 +1180,86 @@ pymain_repl(_PyMain *pymain, _PyCoreConfig *config, PyCompilerFlags *cf)
pymain_run_interactive_hook();
int res = PyRun_AnyFileFlags(stdin, "<stdin>", cf);
pymain->status = (res != 0);
*exitcode = (res != 0);
}
/* Parse the command line.
Handle --version and --help options directly.
Return 1 if Python must exit.
Return 0 on success.
Set pymain->err and return -1 on failure. */
static int
Handle --version and --help options directly. */
static _PyInitError
pymain_parse_cmdline(_PyMain *pymain, _PyCoreConfig *config,
_PyCmdline *cmdline)
{
int res = pymain_parse_cmdline_impl(pymain, config, cmdline);
if (res < 0) {
return -1;
int need_usage = 0;
_PyInitError err;
err = pymain_parse_cmdline_impl(pymain, config, cmdline, &need_usage);
if (_Py_INIT_FAILED(err)) {
return err;
}
if (res) {
if (need_usage) {
pymain_usage(1, config->program);
pymain->status = 2;
return 1;
return _Py_INIT_EXIT(2);
}
if (pymain->command != NULL || pymain->module != NULL) {
/* Backup _PyOS_optind */
_PyOS_optind--;
}
return 0;
return _Py_INIT_OK();
}
/* Parse command line options and environment variables.
This code must not use Python runtime apart PyMem_Raw memory allocator.
Return 0 on success.
Return 1 if Python is done and must exit.
Set pymain->err and return -1 on error. */
static int
This code must not use Python runtime apart PyMem_Raw memory allocator. */
static _PyInitError
pymain_read_conf_impl(_PyMain *pymain, _PyCoreConfig *config,
_PyCmdline *cmdline)
{
_PyInitError err;
int res = pymain_parse_cmdline(pymain, config, cmdline);
if (res != 0) {
return res;
err = pymain_parse_cmdline(pymain, config, cmdline);
if (_Py_INIT_FAILED(err)) {
return err;
}
if (pymain_init_core_argv(pymain, config, cmdline) < 0) {
return -1;
err = pymain_init_core_argv(pymain, config, cmdline);
if (_Py_INIT_FAILED(err)) {
return err;
}
err = _PyCoreConfig_Read(config);
if (_Py_INIT_FAILED(err)) {
pymain->err = err;
return -1;
return err;
}
if (config->use_environment) {
err = cmdline_init_env_warnoptions(pymain, config, cmdline);
if (_Py_INIT_FAILED(err)) {
pymain->err = err;
return -1;
return err;
}
}
err = config_init_warnoptions(config, cmdline);
if (_Py_INIT_FAILED(err)) {
pymain->err = err;
return -1;
return err;
}
return 0;
return _Py_INIT_OK();
}
/* Read the configuration and initialize the LC_CTYPE locale:
enable UTF-8 mode (PEP 540) and/or coerce the C locale (PEP 538). */
static int
static _PyInitError
pymain_read_conf(_PyMain *pymain, _PyCoreConfig *config,
_PyCmdline *cmdline)
{
_PyInitError err;
int init_utf8_mode = Py_UTF8Mode;
#ifdef MS_WINDOWS
int init_legacy_encoding = Py_LegacyWindowsFSEncodingFlag;
#endif
_PyCoreConfig save_config = _PyCoreConfig_INIT;
int res = -1;
int locale_coerced = 0;
int loops = 0;
if (_PyCoreConfig_Copy(&save_config, config) < 0) {
pymain->err = _Py_INIT_NO_MEMORY();
err = _Py_INIT_NO_MEMORY();
goto done;
}
@ -1325,7 +1273,7 @@ pymain_read_conf(_PyMain *pymain, _PyCoreConfig *config,
/* Watchdog to prevent an infinite loop */
loops++;
if (loops == 3) {
pymain->err = _Py_INIT_ERR("Encoding changed twice while "
err = _Py_INIT_ERR("Encoding changed twice while "
"reading the configuration");
goto done;
}
@ -1337,13 +1285,13 @@ pymain_read_conf(_PyMain *pymain, _PyCoreConfig *config,
Py_LegacyWindowsFSEncodingFlag = config->legacy_windows_fs_encoding;
#endif
if (pymain_init_cmdline_argv(pymain, config, cmdline) < 0) {
err = pymain_init_cmdline_argv(pymain, config, cmdline);
if (_Py_INIT_FAILED(err)) {
goto done;
}
int conf_res = pymain_read_conf_impl(pymain, config, cmdline);
if (conf_res != 0) {
res = conf_res;
err = pymain_read_conf_impl(pymain, config, cmdline);
if (_Py_INIT_FAILED(err)) {
goto done;
}
@ -1384,7 +1332,7 @@ pymain_read_conf(_PyMain *pymain, _PyCoreConfig *config,
int new_utf8_mode = config->utf8_mode;
int new_coerce_c_locale = config->coerce_c_locale;
if (_PyCoreConfig_Copy(config, &save_config) < 0) {
pymain->err = _Py_INIT_NO_MEMORY();
err = _Py_INIT_NO_MEMORY();
goto done;
}
pymain_clear_cmdline(pymain, cmdline);
@ -1396,7 +1344,7 @@ pymain_read_conf(_PyMain *pymain, _PyCoreConfig *config,
/* The encoding changed: read again the configuration
with the new encoding */
}
res = 0;
err = _Py_INIT_OK();
done:
_PyCoreConfig_Clear(&save_config);
@ -1404,7 +1352,7 @@ done:
#ifdef MS_WINDOWS
Py_LegacyWindowsFSEncodingFlag = init_legacy_encoding;
#endif
return res;
return err;
}
@ -1605,31 +1553,29 @@ _PyMainInterpreterConfig_Read(_PyMainInterpreterConfig *main_config,
}
static int
pymain_init_python_main(_PyMain *pymain, _PyCoreConfig *config,
PyInterpreterState *interp)
static _PyInitError
pymain_init_python_main(_PyMain *pymain, PyInterpreterState *interp)
{
_PyInitError err;
_PyMainInterpreterConfig main_config = _PyMainInterpreterConfig_INIT;
err = _PyMainInterpreterConfig_Read(&main_config, config);
err = _PyMainInterpreterConfig_Read(&main_config, &interp->core_config);
if (!_Py_INIT_FAILED(err)) {
err = _Py_InitializeMainInterpreter(interp, &main_config);
}
_PyMainInterpreterConfig_Clear(&main_config);
if (_Py_INIT_FAILED(err)) {
pymain->err = err;
return -1;
return err;
}
return 0;
return _Py_INIT_OK();
}
static int
pymain_run_python(_PyMain *pymain, PyInterpreterState *interp)
static _PyInitError
pymain_run_python(_PyMain *pymain, PyInterpreterState *interp, int *exitcode)
{
int res = 0;
_PyInitError err;
_PyCoreConfig *config = &interp->core_config;
PyObject *main_importer_path = NULL;
@ -1644,7 +1590,7 @@ pymain_run_python(_PyMain *pymain, PyInterpreterState *interp)
if (main_importer_path != NULL) {
if (pymain_sys_path_add_path0(interp, main_importer_path) < 0) {
pymain->status = 1;
err = _Py_INIT_EXIT(1);
goto done;
}
}
@ -1652,14 +1598,13 @@ pymain_run_python(_PyMain *pymain, PyInterpreterState *interp)
PyObject *path0 = _PyPathConfig_ComputeArgv0(config->argc,
config->argv);
if (path0 == NULL) {
pymain->err = _Py_INIT_NO_MEMORY();
res = -1;
err = _Py_INIT_NO_MEMORY();
goto done;
}
if (pymain_sys_path_add_path0(interp, path0) < 0) {
Py_DECREF(path0);
pymain->status = 1;
err = _Py_INIT_EXIT(1);
goto done;
}
Py_DECREF(path0);
@ -1671,67 +1616,65 @@ pymain_run_python(_PyMain *pymain, PyInterpreterState *interp)
pymain_import_readline(pymain, config);
if (pymain->command) {
pymain->status = pymain_run_command(pymain->command, &cf);
*exitcode = pymain_run_command(pymain->command, &cf);
}
else if (pymain->module) {
pymain->status = (pymain_run_module(pymain->module, 1) != 0);
*exitcode = (pymain_run_module(pymain->module, 1) != 0);
}
else if (main_importer_path != NULL) {
int sts = pymain_run_module(L"__main__", 0);
pymain->status = (sts != 0);
*exitcode = (sts != 0);
}
else if (pymain->filename != NULL) {
pymain_run_file(pymain, config, &cf);
*exitcode = pymain_run_file(pymain, config, &cf);
}
else {
pymain_run_stdin(pymain, config, &cf);
*exitcode = pymain_run_stdin(pymain, config, &cf);
}
pymain_repl(pymain, config, &cf);
pymain_repl(pymain, config, &cf, exitcode);
err = _Py_INIT_OK();
done:
Py_XDECREF(main_importer_path);
return res;
return err;
}
static int
static _PyInitError
pymain_cmdline_impl(_PyMain *pymain, _PyCoreConfig *config,
_PyCmdline *cmdline)
{
pymain->err = _PyRuntime_Initialize();
if (_Py_INIT_FAILED(pymain->err)) {
return -1;
_PyInitError err;
err = _PyRuntime_Initialize();
if (_Py_INIT_FAILED(err)) {
return err;
}
int res = pymain_read_conf(pymain, config, cmdline);
if (res < 0) {
return -1;
}
if (res > 0) {
/* --help or --version command: we are done */
return 1;
err = pymain_read_conf(pymain, config, cmdline);
if (_Py_INIT_FAILED(err)) {
return err;
}
if (cmdline->print_help) {
pymain_usage(0, config->program);
return 1;
return _Py_INIT_EXIT(0);
}
if (cmdline->print_version) {
printf("Python %s\n",
(cmdline->print_version >= 2) ? Py_GetVersion() : PY_VERSION);
return 1;
return _Py_INIT_EXIT(0);
}
/* For Py_GetArgcArgv(). Cleared by pymain_free(). */
orig_argv = _Py_wstrlist_copy(pymain->argc, cmdline->argv);
if (orig_argv == NULL) {
pymain->err = _Py_INIT_NO_MEMORY();
return -1;
return _Py_INIT_NO_MEMORY();
}
orig_argc = pymain->argc;
return 0;
return _Py_INIT_OK();
}
@ -1746,7 +1689,7 @@ pymain_cmdline_impl(_PyMain *pymain, _PyCoreConfig *config,
_PyCmdline is a temporary structure used to prioritize these
variables. */
static int
static _PyInitError
pymain_cmdline(_PyMain *pymain, _PyCoreConfig *config)
{
/* Force default allocator, since pymain_free() and pymain_clear_config()
@ -1761,7 +1704,7 @@ pymain_cmdline(_PyMain *pymain, _PyCoreConfig *config)
_PyCmdline cmdline;
memset(&cmdline, 0, sizeof(cmdline));
int res = pymain_cmdline_impl(pymain, config, &cmdline);
_PyInitError err = pymain_cmdline_impl(pymain, config, &cmdline);
pymain_clear_cmdline(pymain, &cmdline);
@ -1772,13 +1715,15 @@ pymain_cmdline(_PyMain *pymain, _PyCoreConfig *config)
assert(memcmp(&cur_alloc, &default_alloc, sizeof(cur_alloc)) == 0);
#endif
PyMem_SetAllocator(PYMEM_DOMAIN_RAW, &old_alloc);
return res;
return err;
}
static int
static _PyInitError
pymain_init(_PyMain *pymain, PyInterpreterState **interp_p)
{
_PyInitError err;
/* 754 requires that FP exceptions run in "no stop" mode by default,
* and until C vendors implement C99's ways to control FP exceptions,
* Python requires non-stop mode. Alas, some platforms enable FP
@ -1793,13 +1738,9 @@ pymain_init(_PyMain *pymain, PyInterpreterState **interp_p)
_PyCoreConfig_GetGlobalConfig(config);
int cmd_res = pymain_cmdline(pymain, config);
if (cmd_res < 0) {
_Py_FatalInitError(pymain->err);
}
if (cmd_res == 1) {
pymain_clear_config(config);
return 1;
err = pymain_cmdline(pymain, config);
if (_Py_INIT_FAILED(err)) {
goto done;
}
_PyCoreConfig_SetGlobalConfig(config);
@ -1807,37 +1748,46 @@ pymain_init(_PyMain *pymain, PyInterpreterState **interp_p)
pymain_init_stdio(pymain, config);
PyInterpreterState *interp;
pymain->err = _Py_InitializeCore(&interp, config);
if (_Py_INIT_FAILED(pymain->err)) {
_Py_FatalInitError(pymain->err);
err = _Py_InitializeCore(&interp, config);
if (_Py_INIT_FAILED(err)) {
goto done;
}
*interp_p = interp;
pymain_clear_config(config);
config = &interp->core_config;
if (pymain_init_python_main(pymain, config, interp) < 0) {
_Py_FatalInitError(pymain->err);
err = pymain_init_python_main(pymain, interp);
if (_Py_INIT_FAILED(err)) {
goto done;
}
return 0;
err = _Py_INIT_OK();
done:
pymain_clear_config(config);
return err;
}
static int
pymain_main(_PyMain *pymain)
{
_PyInitError err;
PyInterpreterState *interp;
int res = pymain_init(pymain, &interp);
if (res != 1) {
if (pymain_run_python(pymain, interp) < 0) {
_Py_FatalInitError(pymain->err);
err = pymain_init(pymain, &interp);
if (_Py_INIT_FAILED(err)) {
_Py_ExitInitError(err);
}
int exitcode = 0;
err = pymain_run_python(pymain, interp, &exitcode);
if (_Py_INIT_FAILED(err)) {
_Py_ExitInitError(err);
}
if (Py_FinalizeEx() < 0) {
/* Value unlikely to be confused with a non-error exit status or
other special meaning */
pymain->status = 120;
}
exitcode = 120;
}
pymain_free(pymain);
@ -1859,20 +1809,22 @@ pymain_main(_PyMain *pymain)
#ifdef MS_WINDOWS
/* cmd.exe detects this, prints ^C, and offers to terminate. */
/* https://msdn.microsoft.com/en-us/library/cc704588.aspx */
pymain->status = STATUS_CONTROL_C_EXIT;
exitcode = STATUS_CONTROL_C_EXIT;
#else
pymain->status = SIGINT + 128;
exitcode = SIGINT + 128;
#endif /* !MS_WINDOWS */
}
return pymain->status;
return exitcode;
}
int
Py_Main(int argc, wchar_t **argv)
{
_PyMain pymain = _PyMain_INIT;
_PyMain pymain;
memset(&pymain, 0, sizeof(pymain));
pymain.use_bytes_argv = 0;
pymain.argc = argc;
pymain.wchar_argv = argv;
@ -1884,7 +1836,9 @@ Py_Main(int argc, wchar_t **argv)
int
_Py_UnixMain(int argc, char **argv)
{
_PyMain pymain = _PyMain_INIT;
_PyMain pymain;
memset(&pymain, 0, sizeof(pymain));
pymain.use_bytes_argv = 1;
pymain.argc = argc;
pymain.bytes_argv = argv;

2
Programs/_freeze_importlib.c
View File

@ -89,7 +89,7 @@ main(int argc, char *argv[])
/* No need to call _PyCoreConfig_Clear() since we didn't allocate any
memory: program_name is a constant string. */
if (_Py_INIT_FAILED(err)) {
_Py_FatalInitError(err);
_Py_ExitInitError(err);
}
sprintf(buf, "<frozen %s>", name);

6
Programs/_testembed.c
View File

@ -553,7 +553,7 @@ static int test_init_from_config(void)
_PyInitError err = _Py_InitializeFromConfig(&config);
/* Don't call _PyCoreConfig_Clear() since all strings are static */
if (_Py_INIT_FAILED(err)) {
_Py_FatalInitError(err);
_Py_ExitInitError(err);
}
dump_config();
Py_Finalize();
@ -618,7 +618,7 @@ static int test_init_isolated(void)
test_init_env_putenvs();
_PyInitError err = _Py_InitializeFromConfig(&config);
if (_Py_INIT_FAILED(err)) {
_Py_FatalInitError(err);
_Py_ExitInitError(err);
}
dump_config();
Py_Finalize();
@ -635,7 +635,7 @@ static int test_init_dev_mode(void)
config.program_name = L"./_testembed";
_PyInitError err = _Py_InitializeFromConfig(&config);
if (_Py_INIT_FAILED(err)) {
_Py_FatalInitError(err);
_Py_ExitInitError(err);
}
dump_config();
Py_Finalize();

2
Python/frozenmain.c
View File

@ -86,7 +86,7 @@ Py_FrozenMain(int argc, char **argv)
/* No need to call _PyCoreConfig_Clear() since we didn't allocate any
memory: program_name is a constant string. */
if (_Py_INIT_FAILED(err)) {
_Py_FatalInitError(err);
_Py_ExitInitError(err);
}
#ifdef MS_WINDOWS

2
Python/pathconfig.c
View File

@ -408,7 +408,7 @@ pathconfig_global_init(void)
error:
_PyCoreConfig_Clear(&config);
_Py_FatalInitError(err);
_Py_ExitInitError(err);
}

11
Python/pylifecycle.c
View File

@ -960,7 +960,7 @@ Py_InitializeEx(int install_sigs)
_PyCoreConfig_Clear(&config);
if (_Py_INIT_FAILED(err)) {
_Py_FatalInitError(err);
_Py_ExitInitError(err);
}
}
@ -1432,7 +1432,7 @@ Py_NewInterpreter(void)
PyThreadState *tstate;
_PyInitError err = new_interpreter(&tstate);
if (_Py_INIT_FAILED(err)) {
_Py_FatalInitError(err);
_Py_ExitInitError(err);
}
return tstate;
@ -2073,12 +2073,17 @@ Py_FatalError(const char *msg)
}
void _Py_NO_RETURN
_Py_FatalInitError(_PyInitError err)
_Py_ExitInitError(_PyInitError err)
{
if (err.exitcode >= 0) {
exit(err.exitcode);
}
else {
/* On "user" error: exit with status 1.
For all other errors, call abort(). */
int status = err.user_err ? 1 : -1;
fatal_error(err.prefix, err.msg, status);
}
}
/* Clean up and exit */