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PythonExtra/ports/unix/main.c
Damien George aac5a97d08 ports: Move '.frozen' to second entry in sys.path. 
In commit 86ce442607 the '.frozen' entry was
added at the start of sys.path, to allow control over when frozen modules
are searched during import, and retain existing behaviour whereby frozen
was searched before the filesystem.

But Python semantics of sys.path require sys.path[0] to be the directory of
the currently executing script, or ''.

This commit moves the '.frozen' entry to second place in sys.path, so
sys.path[0] retains its correct value (described above).

Signed-off-by: Damien George <damien@micropython.org>
2021-12-29 23:55:36 +11:00

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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2013, 2014 Damien P. George
* Copyright (c) 2014-2017 Paul Sokolovsky
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <stdint.h>
#include <stdbool.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <stdarg.h>
#include <unistd.h>
#include <ctype.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <errno.h>
#include <signal.h>
#include "py/compile.h"
#include "py/runtime.h"
#include "py/builtin.h"
#include "py/repl.h"
#include "py/gc.h"
#include "py/stackctrl.h"
#include "py/mphal.h"
#include "py/mpthread.h"
#include "extmod/misc.h"
#include "extmod/vfs.h"
#include "extmod/vfs_posix.h"
#include "genhdr/mpversion.h"
#include "input.h"
// Command line options, with their defaults
STATIC bool compile_only = false;
STATIC uint emit_opt = MP_EMIT_OPT_NONE;
#if MICROPY_ENABLE_GC
// Heap size of GC heap (if enabled)
// Make it larger on a 64 bit machine, because pointers are larger.
long heap_size = 1024 * 1024 * (sizeof(mp_uint_t) / 4);
#endif
STATIC void stderr_print_strn(void *env, const char *str, size_t len) {
(void)env;
ssize_t ret;
MP_HAL_RETRY_SYSCALL(ret, write(STDERR_FILENO, str, len), {});
mp_uos_dupterm_tx_strn(str, len);
}
const mp_print_t mp_stderr_print = {NULL, stderr_print_strn};
#define FORCED_EXIT (0x100)
// If exc is SystemExit, return value where FORCED_EXIT bit set,
// and lower 8 bits are SystemExit value. For all other exceptions,
// return 1.
STATIC int handle_uncaught_exception(mp_obj_base_t *exc) {
// check for SystemExit
if (mp_obj_is_subclass_fast(MP_OBJ_FROM_PTR(exc->type), MP_OBJ_FROM_PTR(&mp_type_SystemExit))) {
// None is an exit value of 0; an int is its value; anything else is 1
mp_obj_t exit_val = mp_obj_exception_get_value(MP_OBJ_FROM_PTR(exc));
mp_int_t val = 0;
if (exit_val != mp_const_none && !mp_obj_get_int_maybe(exit_val, &val)) {
val = 1;
}
return FORCED_EXIT | (val & 255);
}
// Report all other exceptions
mp_obj_print_exception(&mp_stderr_print, MP_OBJ_FROM_PTR(exc));
return 1;
}
#define LEX_SRC_STR (1)
#define LEX_SRC_VSTR (2)
#define LEX_SRC_FILENAME (3)
#define LEX_SRC_STDIN (4)
// Returns standard error codes: 0 for success, 1 for all other errors,
// except if FORCED_EXIT bit is set then script raised SystemExit and the
// value of the exit is in the lower 8 bits of the return value
STATIC int execute_from_lexer(int source_kind, const void *source, mp_parse_input_kind_t input_kind, bool is_repl) {
mp_hal_set_interrupt_char(CHAR_CTRL_C);
nlr_buf_t nlr;
if (nlr_push(&nlr) == 0) {
// create lexer based on source kind
mp_lexer_t *lex;
if (source_kind == LEX_SRC_STR) {
const char *line = source;
lex = mp_lexer_new_from_str_len(MP_QSTR__lt_stdin_gt_, line, strlen(line), false);
} else if (source_kind == LEX_SRC_VSTR) {
const vstr_t *vstr = source;
lex = mp_lexer_new_from_str_len(MP_QSTR__lt_stdin_gt_, vstr->buf, vstr->len, false);
} else if (source_kind == LEX_SRC_FILENAME) {
lex = mp_lexer_new_from_file((const char *)source);
} else { // LEX_SRC_STDIN
lex = mp_lexer_new_from_fd(MP_QSTR__lt_stdin_gt_, 0, false);
}
qstr source_name = lex->source_name;
#if MICROPY_PY___FILE__
if (input_kind == MP_PARSE_FILE_INPUT) {
mp_store_global(MP_QSTR___file__, MP_OBJ_NEW_QSTR(source_name));
}
#endif
mp_parse_tree_t parse_tree = mp_parse(lex, input_kind);
#if defined(MICROPY_UNIX_COVERAGE)
// allow to print the parse tree in the coverage build
if (mp_verbose_flag >= 3) {
printf("----------------\n");
mp_parse_node_print(&mp_plat_print, parse_tree.root, 0);
printf("----------------\n");
}
#endif
mp_obj_t module_fun = mp_compile(&parse_tree, source_name, is_repl);
if (!compile_only) {
// execute it
mp_call_function_0(module_fun);
}
mp_hal_set_interrupt_char(-1);
mp_handle_pending(true);
nlr_pop();
return 0;
} else {
// uncaught exception
mp_hal_set_interrupt_char(-1);
mp_handle_pending(false);
return handle_uncaught_exception(nlr.ret_val);
}
}
#if MICROPY_USE_READLINE == 1
#include "shared/readline/readline.h"
#else
STATIC char *strjoin(const char *s1, int sep_char, const char *s2) {
int l1 = strlen(s1);
int l2 = strlen(s2);
char *s = malloc(l1 + l2 + 2);
memcpy(s, s1, l1);
if (sep_char != 0) {
s[l1] = sep_char;
l1 += 1;
}
memcpy(s + l1, s2, l2);
s[l1 + l2] = 0;
return s;
}
#endif
STATIC int do_repl(void) {
mp_hal_stdout_tx_str("MicroPython " MICROPY_GIT_TAG " on " MICROPY_BUILD_DATE "; "
MICROPY_PY_SYS_PLATFORM " version\nUse Ctrl-D to exit, Ctrl-E for paste mode\n");
#if MICROPY_USE_READLINE == 1
// use MicroPython supplied readline
vstr_t line;
vstr_init(&line, 16);
for (;;) {
mp_hal_stdio_mode_raw();
input_restart:
vstr_reset(&line);
int ret = readline(&line, ">>> ");
mp_parse_input_kind_t parse_input_kind = MP_PARSE_SINGLE_INPUT;
if (ret == CHAR_CTRL_C) {
// cancel input
mp_hal_stdout_tx_str("\r\n");
goto input_restart;
} else if (ret == CHAR_CTRL_D) {
// EOF
printf("\n");
mp_hal_stdio_mode_orig();
vstr_clear(&line);
return 0;
} else if (ret == CHAR_CTRL_E) {
// paste mode
mp_hal_stdout_tx_str("\npaste mode; Ctrl-C to cancel, Ctrl-D to finish\n=== ");
vstr_reset(&line);
for (;;) {
char c = mp_hal_stdin_rx_chr();
if (c == CHAR_CTRL_C) {
// cancel everything
mp_hal_stdout_tx_str("\n");
goto input_restart;
} else if (c == CHAR_CTRL_D) {
// end of input
mp_hal_stdout_tx_str("\n");
break;
} else {
// add char to buffer and echo
vstr_add_byte(&line, c);
if (c == '\r') {
mp_hal_stdout_tx_str("\n=== ");
} else {
mp_hal_stdout_tx_strn(&c, 1);
}
}
}
parse_input_kind = MP_PARSE_FILE_INPUT;
} else if (line.len == 0) {
if (ret != 0) {
printf("\n");
}
goto input_restart;
} else {
// got a line with non-zero length, see if it needs continuing
while (mp_repl_continue_with_input(vstr_null_terminated_str(&line))) {
vstr_add_byte(&line, '\n');
ret = readline(&line, "... ");
if (ret == CHAR_CTRL_C) {
// cancel everything
printf("\n");
goto input_restart;
} else if (ret == CHAR_CTRL_D) {
// stop entering compound statement
break;
}
}
}
mp_hal_stdio_mode_orig();
ret = execute_from_lexer(LEX_SRC_VSTR, &line, parse_input_kind, true);
if (ret & FORCED_EXIT) {
return ret;
}
}
#else
// use simple readline
for (;;) {
char *line = prompt(">>> ");
if (line == NULL) {
// EOF
return 0;
}
while (mp_repl_continue_with_input(line)) {
char *line2 = prompt("... ");
if (line2 == NULL) {
break;
}
char *line3 = strjoin(line, '\n', line2);
free(line);
free(line2);
line = line3;
}
int ret = execute_from_lexer(LEX_SRC_STR, line, MP_PARSE_SINGLE_INPUT, true);
if (ret & FORCED_EXIT) {
return ret;
}
free(line);
}
#endif
}
STATIC int do_file(const char *file) {
return execute_from_lexer(LEX_SRC_FILENAME, file, MP_PARSE_FILE_INPUT, false);
}
STATIC int do_str(const char *str) {
return execute_from_lexer(LEX_SRC_STR, str, MP_PARSE_FILE_INPUT, false);
}
STATIC void print_help(char **argv) {
printf(
"usage: %s [<opts>] [-X <implopt>] [-c <command> | -m <module> | <filename>]\n"
"Options:\n"
"-h : print this help message\n"
"-i : enable inspection via REPL after running command/module/file\n"
#if MICROPY_DEBUG_PRINTERS
"-v : verbose (trace various operations); can be multiple\n"
#endif
"-O[N] : apply bytecode optimizations of level N\n"
"\n"
"Implementation specific options (-X):\n", argv[0]
);
int impl_opts_cnt = 0;
printf(
" compile-only -- parse and compile only\n"
#if MICROPY_EMIT_NATIVE
" emit={bytecode,native,viper} -- set the default code emitter\n"
#else
" emit=bytecode -- set the default code emitter\n"
#endif
);
impl_opts_cnt++;
#if MICROPY_ENABLE_GC
printf(
" heapsize=<n>[w][K|M] -- set the heap size for the GC (default %ld)\n"
, heap_size);
impl_opts_cnt++;
#endif
if (impl_opts_cnt == 0) {
printf(" (none)\n");
}
}
STATIC int invalid_args(void) {
fprintf(stderr, "Invalid command line arguments. Use -h option for help.\n");
return 1;
}
// Process options which set interpreter init options
STATIC void pre_process_options(int argc, char **argv) {
for (int a = 1; a < argc; a++) {
if (argv[a][0] == '-') {
if (strcmp(argv[a], "-c") == 0 || strcmp(argv[a], "-m") == 0) {
break; // Everything after this is a command/module and arguments for it
}
if (strcmp(argv[a], "-h") == 0) {
print_help(argv);
exit(0);
}
if (strcmp(argv[a], "-X") == 0) {
if (a + 1 >= argc) {
exit(invalid_args());
}
if (0) {
} else if (strcmp(argv[a + 1], "compile-only") == 0) {
compile_only = true;
} else if (strcmp(argv[a + 1], "emit=bytecode") == 0) {
emit_opt = MP_EMIT_OPT_BYTECODE;
#if MICROPY_EMIT_NATIVE
} else if (strcmp(argv[a + 1], "emit=native") == 0) {
emit_opt = MP_EMIT_OPT_NATIVE_PYTHON;
} else if (strcmp(argv[a + 1], "emit=viper") == 0) {
emit_opt = MP_EMIT_OPT_VIPER;
#endif
#if MICROPY_ENABLE_GC
} else if (strncmp(argv[a + 1], "heapsize=", sizeof("heapsize=") - 1) == 0) {
char *end;
heap_size = strtol(argv[a + 1] + sizeof("heapsize=") - 1, &end, 0);
// Don't bring unneeded libc dependencies like tolower()
// If there's 'w' immediately after number, adjust it for
// target word size. Note that it should be *before* size
// suffix like K or M, to avoid confusion with kilowords,
// etc. the size is still in bytes, just can be adjusted
// for word size (taking 32bit as baseline).
bool word_adjust = false;
if ((*end | 0x20) == 'w') {
word_adjust = true;
end++;
}
if ((*end | 0x20) == 'k') {
heap_size *= 1024;
} else if ((*end | 0x20) == 'm') {
heap_size *= 1024 * 1024;
} else {
// Compensate for ++ below
--end;
}
if (*++end != 0) {
goto invalid_arg;
}
if (word_adjust) {
heap_size = heap_size * MP_BYTES_PER_OBJ_WORD / 4;
}
// If requested size too small, we'll crash anyway
if (heap_size < 700) {
goto invalid_arg;
}
#endif
} else {
invalid_arg:
exit(invalid_args());
}
a++;
}
} else {
break; // Not an option but a file
}
}
}
STATIC void set_sys_argv(char *argv[], int argc, int start_arg) {
for (int i = start_arg; i < argc; i++) {
mp_obj_list_append(mp_sys_argv, MP_OBJ_NEW_QSTR(qstr_from_str(argv[i])));
}
}
#ifdef _WIN32
#define PATHLIST_SEP_CHAR ';'
#else
#define PATHLIST_SEP_CHAR ':'
#endif
MP_NOINLINE int main_(int argc, char **argv);
int main(int argc, char **argv) {
#if MICROPY_PY_THREAD
mp_thread_init();
#endif
// We should capture stack top ASAP after start, and it should be
// captured guaranteedly before any other stack variables are allocated.
// For this, actual main (renamed main_) should not be inlined into
// this function. main_() itself may have other functions inlined (with
// their own stack variables), that's why we need this main/main_ split.
mp_stack_ctrl_init();
return main_(argc, argv);
}
MP_NOINLINE int main_(int argc, char **argv) {
#ifdef SIGPIPE
// Do not raise SIGPIPE, instead return EPIPE. Otherwise, e.g. writing
// to peer-closed socket will lead to sudden termination of MicroPython
// process. SIGPIPE is particularly nasty, because unix shell doesn't
// print anything for it, so the above looks like completely sudden and
// silent termination for unknown reason. Ignoring SIGPIPE is also what
// CPython does. Note that this may lead to problems using MicroPython
// scripts as pipe filters, but again, that's what CPython does. So,
// scripts which want to follow unix shell pipe semantics (where SIGPIPE
// means "pipe was requested to terminate, it's not an error"), should
// catch EPIPE themselves.
signal(SIGPIPE, SIG_IGN);
#endif
// Define a reasonable stack limit to detect stack overflow.
mp_uint_t stack_limit = 40000 * (sizeof(void *) / 4);
#if defined(__arm__) && !defined(__thumb2__)
// ARM (non-Thumb) architectures require more stack.
stack_limit *= 2;
#endif
mp_stack_set_limit(stack_limit);
pre_process_options(argc, argv);
#if MICROPY_ENABLE_GC
char *heap = malloc(heap_size);
gc_init(heap, heap + heap_size);
#endif
#if MICROPY_ENABLE_PYSTACK
static mp_obj_t pystack[1024];
mp_pystack_init(pystack, &pystack[MP_ARRAY_SIZE(pystack)]);
#endif
mp_init();
#if MICROPY_EMIT_NATIVE
// Set default emitter options
MP_STATE_VM(default_emit_opt) = emit_opt;
#else
(void)emit_opt;
#endif
#if MICROPY_VFS_POSIX
{
// Mount the host FS at the root of our internal VFS
mp_obj_t args[2] = {
mp_type_vfs_posix.make_new(&mp_type_vfs_posix, 0, 0, NULL),
MP_OBJ_NEW_QSTR(MP_QSTR__slash_),
};
mp_vfs_mount(2, args, (mp_map_t *)&mp_const_empty_map);
MP_STATE_VM(vfs_cur) = MP_STATE_VM(vfs_mount_table);
}
#endif
char *home = getenv("HOME");
char *path = getenv("MICROPYPATH");
if (path == NULL) {
path = MICROPY_PY_SYS_PATH_DEFAULT;
}
size_t path_num = 1; // [0] is for current dir (or base dir of the script)
if (*path == PATHLIST_SEP_CHAR) {
path_num++;
}
for (char *p = path; p != NULL; p = strchr(p, PATHLIST_SEP_CHAR)) {
path_num++;
if (p != NULL) {
p++;
}
}
mp_obj_list_init(MP_OBJ_TO_PTR(mp_sys_path), path_num);
mp_obj_t *path_items;
mp_obj_list_get(mp_sys_path, &path_num, &path_items);
path_items[0] = MP_OBJ_NEW_QSTR(MP_QSTR_);
{
char *p = path;
for (mp_uint_t i = 1; i < path_num; i++) {
char *p1 = strchr(p, PATHLIST_SEP_CHAR);
if (p1 == NULL) {
p1 = p + strlen(p);
}
if (p[0] == '~' && p[1] == '/' && home != NULL) {
// Expand standalone ~ to $HOME
int home_l = strlen(home);
vstr_t vstr;
vstr_init(&vstr, home_l + (p1 - p - 1) + 1);
vstr_add_strn(&vstr, home, home_l);
vstr_add_strn(&vstr, p + 1, p1 - p - 1);
path_items[i] = mp_obj_new_str_from_vstr(&mp_type_str, &vstr);
} else {
path_items[i] = mp_obj_new_str_via_qstr(p, p1 - p);
}
p = p1 + 1;
}
}
mp_obj_list_init(MP_OBJ_TO_PTR(mp_sys_argv), 0);
#if defined(MICROPY_UNIX_COVERAGE)
{
MP_DECLARE_CONST_FUN_OBJ_0(extra_coverage_obj);
MP_DECLARE_CONST_FUN_OBJ_0(extra_cpp_coverage_obj);
mp_store_global(MP_QSTR_extra_coverage, MP_OBJ_FROM_PTR(&extra_coverage_obj));
mp_store_global(MP_QSTR_extra_cpp_coverage, MP_OBJ_FROM_PTR(&extra_cpp_coverage_obj));
}
#endif
// Here is some example code to create a class and instance of that class.
// First is the Python, then the C code.
//
// class TestClass:
// pass
// test_obj = TestClass()
// test_obj.attr = 42
//
// mp_obj_t test_class_type, test_class_instance;
// test_class_type = mp_obj_new_type(qstr_from_str("TestClass"), mp_const_empty_tuple, mp_obj_new_dict(0));
// mp_store_name(qstr_from_str("test_obj"), test_class_instance = mp_call_function_0(test_class_type));
// mp_store_attr(test_class_instance, qstr_from_str("attr"), mp_obj_new_int(42));
/*
printf("bytes:\n");
printf(" total %d\n", m_get_total_bytes_allocated());
printf(" cur %d\n", m_get_current_bytes_allocated());
printf(" peak %d\n", m_get_peak_bytes_allocated());
*/
const int NOTHING_EXECUTED = -2;
int ret = NOTHING_EXECUTED;
bool inspect = false;
for (int a = 1; a < argc; a++) {
if (argv[a][0] == '-') {
if (strcmp(argv[a], "-i") == 0) {
inspect = true;
} else if (strcmp(argv[a], "-c") == 0) {
if (a + 1 >= argc) {
return invalid_args();
}
set_sys_argv(argv, a + 1, a); // The -c becomes first item of sys.argv, as in CPython
set_sys_argv(argv, argc, a + 2); // Then what comes after the command
ret = do_str(argv[a + 1]);
break;
} else if (strcmp(argv[a], "-m") == 0) {
if (a + 1 >= argc) {
return invalid_args();
}
mp_obj_t import_args[4];
import_args[0] = mp_obj_new_str(argv[a + 1], strlen(argv[a + 1]));
import_args[1] = import_args[2] = mp_const_none;
// Ask __import__ to handle imported module specially - set its __name__
// to __main__, and also return this leaf module, not top-level package
// containing it.
import_args[3] = mp_const_false;
// TODO: https://docs.python.org/3/using/cmdline.html#cmdoption-m :
// "the first element of sys.argv will be the full path to
// the module file (while the module file is being located,
// the first element will be set to "-m")."
set_sys_argv(argv, argc, a + 1);
mp_obj_t mod;
nlr_buf_t nlr;
// Allocating subpkg_tried on the stack can lead to compiler warnings about this
// variable being clobbered when nlr is implemented using setjmp/longjmp. Its
// value must be preserved across calls to setjmp/longjmp.
static bool subpkg_tried;
subpkg_tried = false;
reimport:
if (nlr_push(&nlr) == 0) {
mod = mp_builtin___import__(MP_ARRAY_SIZE(import_args), import_args);
nlr_pop();
} else {
// uncaught exception
return handle_uncaught_exception(nlr.ret_val) & 0xff;
}
if (mp_obj_is_package(mod) && !subpkg_tried) {
subpkg_tried = true;
vstr_t vstr;
int len = strlen(argv[a + 1]);
vstr_init(&vstr, len + sizeof(".__main__"));
vstr_add_strn(&vstr, argv[a + 1], len);
vstr_add_strn(&vstr, ".__main__", sizeof(".__main__") - 1);
import_args[0] = mp_obj_new_str_from_vstr(&mp_type_str, &vstr);
goto reimport;
}
ret = 0;
break;
} else if (strcmp(argv[a], "-X") == 0) {
a += 1;
#if MICROPY_DEBUG_PRINTERS
} else if (strcmp(argv[a], "-v") == 0) {
mp_verbose_flag++;
#endif
} else if (strncmp(argv[a], "-O", 2) == 0) {
if (unichar_isdigit(argv[a][2])) {
MP_STATE_VM(mp_optimise_value) = argv[a][2] & 0xf;
} else {
MP_STATE_VM(mp_optimise_value) = 0;
for (char *p = argv[a] + 1; *p && *p == 'O'; p++, MP_STATE_VM(mp_optimise_value)++) {;
}
}
} else {
return invalid_args();
}
} else {
char *pathbuf = malloc(PATH_MAX);
char *basedir = realpath(argv[a], pathbuf);
if (basedir == NULL) {
mp_printf(&mp_stderr_print, "%s: can't open file '%s': [Errno %d] %s\n", argv[0], argv[a], errno, strerror(errno));
// CPython exits with 2 in such case
ret = 2;
break;
}
// Set base dir of the script as first entry in sys.path.
char *p = strrchr(basedir, '/');
path_items[0] = mp_obj_new_str_via_qstr(basedir, p - basedir);
free(pathbuf);
set_sys_argv(argv, argc, a);
ret = do_file(argv[a]);
break;
}
}
const char *inspect_env = getenv("MICROPYINSPECT");
if (inspect_env && inspect_env[0] != '\0') {
inspect = true;
}
if (ret == NOTHING_EXECUTED || inspect) {
if (isatty(0) || inspect) {
prompt_read_history();
ret = do_repl();
prompt_write_history();
} else {
ret = execute_from_lexer(LEX_SRC_STDIN, NULL, MP_PARSE_FILE_INPUT, false);
}
}
#if MICROPY_PY_SYS_SETTRACE
MP_STATE_THREAD(prof_trace_callback) = MP_OBJ_NULL;
#endif
#if MICROPY_PY_SYS_ATEXIT
// Beware, the sys.settrace callback should be disabled before running sys.atexit.
if (mp_obj_is_callable(MP_STATE_VM(sys_exitfunc))) {
mp_call_function_0(MP_STATE_VM(sys_exitfunc));
}
#endif
#if MICROPY_PY_MICROPYTHON_MEM_INFO
if (mp_verbose_flag) {
mp_micropython_mem_info(0, NULL);
}
#endif
#if MICROPY_PY_BLUETOOTH
void mp_bluetooth_deinit(void);
mp_bluetooth_deinit();
#endif
#if MICROPY_PY_THREAD
mp_thread_deinit();
#endif
#if defined(MICROPY_UNIX_COVERAGE)
gc_sweep_all();
#endif
mp_deinit();
#if MICROPY_ENABLE_GC && !defined(NDEBUG)
// We don't really need to free memory since we are about to exit the
// process, but doing so helps to find memory leaks.
free(heap);
#endif
// printf("total bytes = %d\n", m_get_total_bytes_allocated());
return ret & 0xff;
}
#if !MICROPY_VFS
uint mp_import_stat(const char *path) {
struct stat st;
if (stat(path, &st) == 0) {
if (S_ISDIR(st.st_mode)) {
return MP_IMPORT_STAT_DIR;
} else if (S_ISREG(st.st_mode)) {
return MP_IMPORT_STAT_FILE;
}
}
return MP_IMPORT_STAT_NO_EXIST;
}
#if MICROPY_PY_IO
// Factory function for I/O stream classes, only needed if generic VFS subsystem isn't used.
// Note: buffering and encoding are currently ignored.
mp_obj_t mp_builtin_open(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kwargs) {
enum { ARG_file, ARG_mode };
STATIC const mp_arg_t allowed_args[] = {
{ MP_QSTR_file, MP_ARG_OBJ | MP_ARG_REQUIRED, {.u_rom_obj = MP_ROM_NONE} },
{ MP_QSTR_mode, MP_ARG_OBJ, {.u_obj = MP_OBJ_NEW_QSTR(MP_QSTR_r)} },
{ MP_QSTR_buffering, MP_ARG_INT, {.u_int = -1} },
{ MP_QSTR_encoding, MP_ARG_OBJ, {.u_rom_obj = MP_ROM_NONE} },
};
mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
mp_arg_parse_all(n_args, pos_args, kwargs, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
return mp_vfs_posix_file_open(&mp_type_textio, args[ARG_file].u_obj, args[ARG_mode].u_obj);
}
MP_DEFINE_CONST_FUN_OBJ_KW(mp_builtin_open_obj, 1, mp_builtin_open);
#endif
#endif
void nlr_jump_fail(void *val) {
fprintf(stderr, "FATAL: uncaught NLR %p\n", val);
exit(1);
}
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