562 lines
18 KiB
C
562 lines
18 KiB
C
/*
|
|
* This file is part of the Micro Python project, http://micropython.org/
|
|
*
|
|
* The MIT License (MIT)
|
|
*
|
|
* Copyright (c) 2013, 2014 Damien P. George
|
|
*
|
|
* 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 <ctype.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/types.h>
|
|
#include <errno.h>
|
|
|
|
#include "mpconfig.h"
|
|
#include "nlr.h"
|
|
#include "misc.h"
|
|
#include "qstr.h"
|
|
#include "lexer.h"
|
|
#include "lexerunix.h"
|
|
#include "parse.h"
|
|
#include "obj.h"
|
|
#include "parsehelper.h"
|
|
#include "compile.h"
|
|
#include "runtime0.h"
|
|
#include "runtime.h"
|
|
#include "builtin.h"
|
|
#include "repl.h"
|
|
#include "gc.h"
|
|
#include "genhdr/py-version.h"
|
|
#include "input.h"
|
|
#include "stackctrl.h"
|
|
|
|
// Command line options, with their defaults
|
|
STATIC bool compile_only = false;
|
|
STATIC uint emit_opt = MP_EMIT_OPT_NONE;
|
|
mp_uint_t mp_verbose_flag = 0;
|
|
|
|
#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 = 128*1024 * (sizeof(mp_uint_t) / 4);
|
|
#endif
|
|
|
|
#ifndef _WIN32
|
|
#include <signal.h>
|
|
|
|
STATIC mp_obj_t keyboard_interrupt_obj;
|
|
|
|
STATIC void sighandler(int signum) {
|
|
if (signum == SIGINT) {
|
|
mp_obj_exception_clear_traceback(keyboard_interrupt_obj);
|
|
mp_pending_exception = keyboard_interrupt_obj;
|
|
// disable our handler so next we really die
|
|
struct sigaction sa;
|
|
sa.sa_handler = SIG_DFL;
|
|
sigemptyset(&sa.sa_mask);
|
|
sigaction(SIGINT, &sa, NULL);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#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_t exc) {
|
|
// check for SystemExit
|
|
if (mp_obj_is_subclass_fast(mp_obj_get_type(exc), &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(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(exc);
|
|
return 1;
|
|
}
|
|
|
|
// 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(mp_lexer_t *lex, mp_parse_input_kind_t input_kind, bool is_repl) {
|
|
if (lex == NULL) {
|
|
return 1;
|
|
}
|
|
|
|
if (0) {
|
|
// just tokenise
|
|
while (!mp_lexer_is_kind(lex, MP_TOKEN_END)) {
|
|
mp_token_show(mp_lexer_cur(lex));
|
|
mp_lexer_to_next(lex);
|
|
}
|
|
mp_lexer_free(lex);
|
|
return 0;
|
|
}
|
|
|
|
mp_parse_error_kind_t parse_error_kind;
|
|
mp_parse_node_t pn = mp_parse(lex, input_kind, &parse_error_kind);
|
|
|
|
if (pn == MP_PARSE_NODE_NULL) {
|
|
// parse error
|
|
mp_parse_show_exception(lex, parse_error_kind);
|
|
mp_lexer_free(lex);
|
|
return 1;
|
|
}
|
|
|
|
qstr source_name = mp_lexer_source_name(lex);
|
|
#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_lexer_free(lex);
|
|
|
|
/*
|
|
printf("----------------\n");
|
|
mp_parse_node_print(pn, 0);
|
|
printf("----------------\n");
|
|
*/
|
|
|
|
mp_obj_t module_fun = mp_compile(pn, source_name, emit_opt, is_repl);
|
|
|
|
if (mp_obj_is_exception_instance(module_fun)) {
|
|
// compile error
|
|
mp_obj_print_exception(module_fun);
|
|
return 1;
|
|
}
|
|
|
|
if (compile_only) {
|
|
return 0;
|
|
}
|
|
|
|
#ifndef _WIN32
|
|
// enable signal handler
|
|
struct sigaction sa;
|
|
sa.sa_handler = sighandler;
|
|
sigemptyset(&sa.sa_mask);
|
|
sigaction(SIGINT, &sa, NULL);
|
|
sa.sa_handler = SIG_DFL;
|
|
#endif
|
|
|
|
// execute it
|
|
nlr_buf_t nlr;
|
|
if (nlr_push(&nlr) == 0) {
|
|
mp_call_function_0(module_fun);
|
|
#ifndef _WIN32
|
|
sigaction(SIGINT, &sa, NULL);
|
|
#endif
|
|
nlr_pop();
|
|
return 0;
|
|
} else {
|
|
// uncaught exception
|
|
#ifndef _WIN32
|
|
sigaction(SIGINT, &sa, NULL);
|
|
#endif
|
|
return handle_uncaught_exception((mp_obj_t)nlr.ret_val);
|
|
}
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
STATIC int do_repl(void) {
|
|
printf("Micro Python " MICROPY_GIT_TAG " on " MICROPY_BUILD_DATE "; " MICROPY_PY_SYS_PLATFORM " version\n");
|
|
|
|
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;
|
|
}
|
|
|
|
mp_lexer_t *lex = mp_lexer_new_from_str_len(MP_QSTR__lt_stdin_gt_, line, strlen(line), false);
|
|
int ret = execute_from_lexer(lex, MP_PARSE_SINGLE_INPUT, true);
|
|
if (ret & FORCED_EXIT) {
|
|
return ret;
|
|
}
|
|
free(line);
|
|
}
|
|
}
|
|
|
|
STATIC int do_file(const char *file) {
|
|
mp_lexer_t *lex = mp_lexer_new_from_file(file);
|
|
return execute_from_lexer(lex, MP_PARSE_FILE_INPUT, false);
|
|
}
|
|
|
|
STATIC int do_str(const char *str) {
|
|
mp_lexer_t *lex = mp_lexer_new_from_str_len(MP_QSTR__lt_stdin_gt_, str, strlen(str), false);
|
|
return execute_from_lexer(lex, MP_PARSE_FILE_INPUT, false);
|
|
}
|
|
|
|
int usage(char **argv) {
|
|
printf(
|
|
"usage: %s [<opts>] [-X <implopt>] [-c <command>] [<filename>]\n"
|
|
"Options:\n"
|
|
"-v : verbose (trace various operations); can be multiple\n"
|
|
"-O[N] : apply bytecode optimizations of level N\n"
|
|
"\n"
|
|
"Implementation specific options:\n", argv[0]
|
|
);
|
|
int impl_opts_cnt = 0;
|
|
printf(
|
|
" compile-only -- parse and compile only\n"
|
|
" emit={bytecode,native,viper} -- set the default code emitter\n"
|
|
);
|
|
impl_opts_cnt++;
|
|
#if MICROPY_ENABLE_GC
|
|
printf(
|
|
" heapsize=<n> -- set the heap size for the GC (default %ld)\n"
|
|
, heap_size);
|
|
impl_opts_cnt++;
|
|
#endif
|
|
|
|
if (impl_opts_cnt == 0) {
|
|
printf(" (none)\n");
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
#if MICROPY_MEM_STATS
|
|
STATIC mp_obj_t mem_info(mp_uint_t n_args, const mp_obj_t *args) {
|
|
printf("mem: total=" UINT_FMT ", current=" UINT_FMT ", peak=" UINT_FMT "\n",
|
|
m_get_total_bytes_allocated(), m_get_current_bytes_allocated(), m_get_peak_bytes_allocated());
|
|
printf("stack: " UINT_FMT "\n", mp_stack_usage());
|
|
#if MICROPY_ENABLE_GC
|
|
gc_dump_info();
|
|
if (n_args == 1) {
|
|
// arg given means dump gc allocation table
|
|
gc_dump_alloc_table();
|
|
}
|
|
#endif
|
|
return mp_const_none;
|
|
}
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mem_info_obj, 0, 1, mem_info);
|
|
#endif
|
|
|
|
STATIC mp_obj_t qstr_info(void) {
|
|
mp_uint_t n_pool, n_qstr, n_str_data_bytes, n_total_bytes;
|
|
qstr_pool_info(&n_pool, &n_qstr, &n_str_data_bytes, &n_total_bytes);
|
|
printf("qstr pool: n_pool=" UINT_FMT ", n_qstr=" UINT_FMT ", n_str_data_bytes=" UINT_FMT ", n_total_bytes=" UINT_FMT "\n", n_pool, n_qstr, n_str_data_bytes, n_total_bytes);
|
|
return mp_const_none;
|
|
}
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_0(qstr_info_obj, qstr_info);
|
|
|
|
// Process options which set interpreter init options
|
|
void pre_process_options(int argc, char **argv) {
|
|
for (int a = 1; a < argc; a++) {
|
|
if (argv[a][0] == '-') {
|
|
if (strcmp(argv[a], "-X") == 0) {
|
|
if (a + 1 >= argc) {
|
|
exit(usage(argv));
|
|
}
|
|
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;
|
|
} 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;
|
|
#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;
|
|
}
|
|
if (word_adjust) {
|
|
heap_size = heap_size * BYTES_PER_WORD / 4;
|
|
}
|
|
#endif
|
|
} else {
|
|
exit(usage(argv));
|
|
}
|
|
a++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
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
|
|
|
|
int main(int argc, char **argv) {
|
|
mp_stack_set_limit(32768);
|
|
|
|
pre_process_options(argc, argv);
|
|
|
|
#if MICROPY_ENABLE_GC
|
|
char *heap = malloc(heap_size);
|
|
gc_init(heap, heap + heap_size);
|
|
#endif
|
|
|
|
mp_init();
|
|
|
|
#ifndef _WIN32
|
|
// create keyboard interrupt object
|
|
keyboard_interrupt_obj = mp_obj_new_exception(&mp_type_KeyboardInterrupt);
|
|
#endif
|
|
|
|
char *home = getenv("HOME");
|
|
char *path = getenv("MICROPYPATH");
|
|
if (path == NULL) {
|
|
path = "~/.micropython/lib:/usr/lib/micropython";
|
|
}
|
|
mp_uint_t path_num = 1; // [0] is for current dir (or base dir of the script)
|
|
for (char *p = path; p != NULL; p = strchr(p, PATHLIST_SEP_CHAR)) {
|
|
path_num++;
|
|
if (p != NULL) {
|
|
p++;
|
|
}
|
|
}
|
|
mp_obj_list_init(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 (int 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
|
|
CHECKBUF(buf, PATH_MAX);
|
|
CHECKBUF_APPEND(buf, home, strlen(home));
|
|
CHECKBUF_APPEND(buf, p + 1, p1 - p - 1);
|
|
path_items[i] = MP_OBJ_NEW_QSTR(qstr_from_strn(buf, CHECKBUF_LEN(buf)));
|
|
} else {
|
|
path_items[i] = MP_OBJ_NEW_QSTR(qstr_from_strn(p, p1 - p));
|
|
}
|
|
p = p1 + 1;
|
|
}
|
|
|
|
mp_obj_list_init(mp_sys_argv, 0);
|
|
|
|
#if MICROPY_MEM_STATS
|
|
mp_store_name(qstr_from_str("mem_info"), (mp_obj_t*)&mem_info_obj);
|
|
#endif
|
|
mp_store_name(qstr_from_str("qstr_info"), (mp_obj_t*)&qstr_info_obj);
|
|
|
|
// 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_STATIC("TestClass"), mp_const_empty_tuple, mp_obj_new_dict(0));
|
|
// mp_store_name(QSTR_FROM_STR_STATIC("test_obj"), test_class_instance = mp_call_function_0(test_class_type));
|
|
// mp_store_attr(test_class_instance, QSTR_FROM_STR_STATIC("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;
|
|
for (int a = 1; a < argc; a++) {
|
|
if (argv[a][0] == '-') {
|
|
if (strcmp(argv[a], "-c") == 0) {
|
|
if (a + 1 >= argc) {
|
|
return usage(argv);
|
|
}
|
|
ret = do_str(argv[a + 1]);
|
|
if (ret & FORCED_EXIT) {
|
|
break;
|
|
}
|
|
a += 1;
|
|
} else if (strcmp(argv[a], "-m") == 0) {
|
|
if (a + 1 >= argc) {
|
|
return usage(argv);
|
|
}
|
|
mp_obj_t import_args[4];
|
|
import_args[0] = mp_obj_new_str(argv[a + 1], strlen(argv[a + 1]), false);
|
|
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;
|
|
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((mp_obj_t)nlr.ret_val);
|
|
}
|
|
|
|
if (mp_obj_is_package(mod)) {
|
|
// TODO
|
|
fprintf(stderr, "%s: -m for packages not yet implemented\n", argv[0]);
|
|
exit(1);
|
|
}
|
|
ret = 0;
|
|
break;
|
|
} else if (strcmp(argv[a], "-X") == 0) {
|
|
a += 1;
|
|
} else if (strcmp(argv[a], "-v") == 0) {
|
|
mp_verbose_flag++;
|
|
} else if (strncmp(argv[a], "-O", 2) == 0) {
|
|
if (isdigit(argv[a][2])) {
|
|
mp_optimise_value = argv[a][2] & 0xf;
|
|
} else {
|
|
mp_optimise_value = 0;
|
|
for (char *p = argv[a] + 1; *p && *p == 'O'; p++, mp_optimise_value++);
|
|
}
|
|
} else {
|
|
return usage(argv);
|
|
}
|
|
} else {
|
|
char *pathbuf = malloc(PATH_MAX);
|
|
char *basedir = realpath(argv[a], pathbuf);
|
|
if (basedir == NULL) {
|
|
fprintf(stderr, "%s: can't open file '%s': [Errno %d] ", argv[0], argv[a], errno);
|
|
perror("");
|
|
// 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_QSTR(qstr_from_strn(basedir, p - basedir));
|
|
free(pathbuf);
|
|
|
|
set_sys_argv(argv, argc, a);
|
|
ret = do_file(argv[a]);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (ret == NOTHING_EXECUTED) {
|
|
ret = do_repl();
|
|
}
|
|
|
|
if (mp_verbose_flag) {
|
|
mem_info(0, NULL);
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
int DEBUG_printf(const char *fmt, ...) {
|
|
va_list ap;
|
|
va_start(ap, fmt);
|
|
int ret = vfprintf(stderr, fmt, ap);
|
|
va_end(ap);
|
|
return ret;
|
|
}
|
|
|
|
void nlr_jump_fail(void *val) {
|
|
printf("FATAL: uncaught NLR %p\n", val);
|
|
exit(1);
|
|
}
|