diff options
author | Damien George <damien.p.george@gmail.com> | 2017-09-06 13:40:51 +1000 |
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committer | Damien George <damien.p.george@gmail.com> | 2017-09-06 13:40:51 +1000 |
commit | 01dd7804b87d60b2deab16712eccb3b97351a9b7 (patch) | |
tree | 1aa21f38a872b8e62a3d4e4f74f68033c6f827e4 /unix/main.c | |
parent | a9862b30068fc9df1022f08019fb35aaa5085f64 (diff) |
ports: Make new ports/ sub-directory and move all ports there.
This is to keep the top-level directory clean, to make it clear what is
core and what is a port, and to allow the repository to grow with new ports
in a sustainable way.
Diffstat (limited to 'unix/main.c')
-rw-r--r-- | unix/main.c | 660 |
1 files changed, 0 insertions, 660 deletions
diff --git a/unix/main.c b/unix/main.c deleted file mode 100644 index e861d7f11..000000000 --- a/unix/main.c +++ /dev/null @@ -1,660 +0,0 @@ -/* - * This file is part of the MicroPython 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 <unistd.h> -#include <ctype.h> -#include <sys/stat.h> -#include <sys/types.h> -#include <errno.h> -#include <signal.h> - -#include "py/mpstate.h" -#include "py/nlr.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 "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 dummy = write(STDERR_FILENO, str, len); - mp_uos_dupterm_tx_strn(str, len); - (void)dummy; -} - -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(parse_tree.root, 0); - printf("----------------\n"); - } - #endif - - mp_obj_t module_fun = mp_compile(&parse_tree, source_name, emit_opt, is_repl); - - if (!compile_only) { - // execute it - mp_call_function_0(module_fun); - // check for pending exception - if (MP_STATE_VM(mp_pending_exception) != MP_OBJ_NULL) { - mp_obj_t obj = MP_STATE_VM(mp_pending_exception); - MP_STATE_VM(mp_pending_exception) = MP_OBJ_NULL; - nlr_raise(obj); - } - } - - mp_hal_set_interrupt_char(-1); - nlr_pop(); - return 0; - - } else { - // uncaught exception - mp_hal_set_interrupt_char(-1); - return handle_uncaught_exception(nlr.ret_val); - } -} - -#if MICROPY_USE_READLINE == 1 -#include "lib/mp-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 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 (-X):\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>[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"); - } - - 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], "-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; - } else { - // Compensate for ++ below - --end; - } - if (*++end != 0) { - goto invalid_arg; - } - if (word_adjust) { - heap_size = heap_size * BYTES_PER_WORD / 4; - } - // If requested size too small, we'll crash anyway - if (heap_size < 700) { - goto invalid_arg; - } -#endif - } else { -invalid_arg: - printf("Invalid option\n"); - exit(usage(argv)); - } - a++; - } - } - } -} - -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 - - mp_stack_set_limit(40000 * (BYTES_PER_WORD / 4)); - - pre_process_options(argc, argv); - -#if MICROPY_ENABLE_GC - char *heap = malloc(heap_size); - gc_init(heap, heap + heap_size); -#endif - - mp_init(); - - char *home = getenv("HOME"); - char *path = getenv("MICROPYPATH"); - if (path == NULL) { - #ifdef MICROPY_PY_SYS_PATH_DEFAULT - path = MICROPY_PY_SYS_PATH_DEFAULT; - #else - path = "~/.micropython/lib:/usr/lib/micropython"; - #endif - } - size_t path_num = 1; // [0] is for current dir (or base dir of the script) - if (*path == ':') { - 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_QSTR(qstr_from_strn(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_store_global(QSTR_FROM_STR_STATIC("extra_coverage"), MP_OBJ_FROM_PTR(&extra_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_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; - 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 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; - bool 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 usage(argv); - } - } 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_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 || inspect) { - if (isatty(0)) { - 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_MICROPYTHON_MEM_INFO - if (mp_verbose_flag) { - mp_micropython_mem_info(0, NULL); - } - #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; -} - -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; -} - -void nlr_jump_fail(void *val) { - printf("FATAL: uncaught NLR %p\n", val); - exit(1); -} |