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Diffstat (limited to 'mpy-cross/main.c')
| -rw-r--r-- | mpy-cross/main.c | 272 |
1 files changed, 272 insertions, 0 deletions
diff --git a/mpy-cross/main.c b/mpy-cross/main.c new file mode 100644 index 000000000..a76df26bd --- /dev/null +++ b/mpy-cross/main.c @@ -0,0 +1,272 @@ +/* + * This file is part of the MicroPython project, http://micropython.org/ + * + * The MIT License (MIT) + * + * Copyright (c) 2013-2016 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 <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <unistd.h> +#include <errno.h> + +#include "py/mpstate.h" +#include "py/compile.h" +#include "py/runtime.h" +#include "py/gc.h" +#include "py/stackctrl.h" + +// Command line options, with their defaults +STATIC uint emit_opt = MP_EMIT_OPT_NONE; +mp_uint_t mp_verbose_flag = 0; + +// 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); + +STATIC void stderr_print_strn(void *env, const char *str, mp_uint_t len) { + (void)env; + ssize_t dummy = write(STDERR_FILENO, str, len); + (void)dummy; +} + +STATIC const mp_print_t mp_stderr_print = {NULL, stderr_print_strn}; + +STATIC int compile_and_save(const char *file, const char *output_file) { + mp_lexer_t *lex = mp_lexer_new_from_file(file); + if (lex == NULL) { + printf("MemoryError: lexer could not allocate memory\n"); + return 1; + } + + nlr_buf_t nlr; + if (nlr_push(&nlr) == 0) { + 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, MP_PARSE_FILE_INPUT); + mp_raw_code_t *rc = mp_compile_to_raw_code(&parse_tree, source_name, emit_opt, false); + + vstr_t vstr; + vstr_init(&vstr, 16); + if (output_file == NULL) { + vstr_add_str(&vstr, file); + vstr_cut_tail_bytes(&vstr, 2); + vstr_add_str(&vstr, "mpy"); + } else { + vstr_add_str(&vstr, output_file); + } + mp_raw_code_save_file(rc, vstr_null_terminated_str(&vstr)); + vstr_clear(&vstr); + + nlr_pop(); + return 0; + } else { + // uncaught exception + mp_obj_print_exception(&mp_stderr_print, (mp_obj_t)nlr.ret_val); + return 1; + } +} + +STATIC int usage(char **argv) { + printf( +"usage: %s [<opts>] [-X <implopt>] <input filename>\n" +"Options:\n" +"-o : output file for compiled bytecode\n" +"-v : verbose (trace various operations); can be multiple\n" +"-O[N] : apply bytecode optimizations of level N\n" +"\n" +"Target specific options:\n" +"-msmall-int-bits=number : set the maximum bits used to encode a small-int\n" +"-mno-unicode : don't support unicode in compiled strings\n" +"-mcache-lookup-bc : cache map lookups in the bytecode\n" +"\n" +"Implementation specific options:\n", argv[0] +); + int impl_opts_cnt = 0; + printf( +" emit={bytecode,native,viper} -- set the default code emitter\n" +); + impl_opts_cnt++; + printf( +" heapsize=<n> -- set the heap size for the GC (default %ld)\n" +, heap_size); + impl_opts_cnt++; + + 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 (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; + } 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; + } + } else { + exit(usage(argv)); + } + a++; + } + } + } +} + +MP_NOINLINE int main_(int argc, char **argv) { + mp_stack_set_limit(40000 * (BYTES_PER_WORD / 4)); + + pre_process_options(argc, argv); + + char *heap = malloc(heap_size); + gc_init(heap, heap + heap_size); + + mp_init(); + mp_obj_list_init(mp_sys_path, 0); + mp_obj_list_init(mp_sys_argv, 0); + + // set default compiler configuration + mp_dynamic_compiler.small_int_bits = 31; + mp_dynamic_compiler.opt_cache_map_lookup_in_bytecode = 0; + mp_dynamic_compiler.py_builtins_str_unicode = 1; + + const char *input_file = NULL; + const char *output_file = NULL; + + // parse main options + for (int a = 1; a < argc; a++) { + if (argv[a][0] == '-') { + 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 (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 if (strcmp(argv[a], "-o") == 0) { + if (a + 1 >= argc) { + exit(usage(argv)); + } + a += 1; + output_file = argv[a]; + } else if (strncmp(argv[a], "-msmall-int-bits=", sizeof("-msmall-int-bits=") - 1) == 0) { + char *end; + mp_dynamic_compiler.small_int_bits = + strtol(argv[a] + sizeof("-msmall-int-bits=") - 1, &end, 0); + if (*end) { + return usage(argv); + } + // TODO check that small_int_bits is within range of host's capabilities + } else if (strcmp(argv[a], "-mno-cache-lookup-bc") == 0) { + mp_dynamic_compiler.opt_cache_map_lookup_in_bytecode = 0; + } else if (strcmp(argv[a], "-mcache-lookup-bc") == 0) { + mp_dynamic_compiler.opt_cache_map_lookup_in_bytecode = 1; + } else if (strcmp(argv[a], "-mno-unicode") == 0) { + mp_dynamic_compiler.py_builtins_str_unicode = 0; + } else if (strcmp(argv[a], "-municode") == 0) { + mp_dynamic_compiler.py_builtins_str_unicode = 1; + } else { + return usage(argv); + } + } else { + if (input_file != NULL) { + mp_printf(&mp_stderr_print, "multiple input files\n"); + exit(1); + } + input_file = argv[a]; + } + } + + if (input_file == NULL) { + mp_printf(&mp_stderr_print, "no input file\n"); + exit(1); + } + + int ret = compile_and_save(input_file, output_file); + + #if MICROPY_PY_MICROPYTHON_MEM_INFO + if (mp_verbose_flag) { + mp_micropython_mem_info(0, NULL); + } + #endif + + mp_deinit(); + + return ret & 0xff; +} + +int main(int argc, char **argv) { + mp_stack_ctrl_init(); + return main_(argc, argv); +} + +uint mp_import_stat(const char *path) { + (void)path; + return MP_IMPORT_STAT_NO_EXIST; +} + +void nlr_jump_fail(void *val) { + printf("FATAL: uncaught NLR %p\n", val); + exit(1); +} |