[279] | 1 | #include <stdlib.h>
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| 2 |
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| 3 | #include "mruby.h"
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| 4 | #include "mruby/compile.h"
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| 5 | #include "mruby/dump.h"
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| 6 | #include "mruby/proc.h"
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| 7 |
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| 8 | #define RITEBIN_EXT ".mrb"
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| 9 | #define C_EXT ".c"
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| 10 |
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| 11 | struct mrbc_args
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| 12 | {
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| 13 | int argc;
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| 14 | char **argv;
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| 15 | int idx;
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| 16 | const char *prog;
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| 17 | const char *outfile;
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| 18 | const char *initname;
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| 19 | mrb_bool check_syntax : 1;
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| 20 | mrb_bool verbose : 1;
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| 21 | unsigned int flags : 4;
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| 22 | };
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| 23 |
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| 24 | static void
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| 25 | usage(const char *name)
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| 26 | {
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| 27 | static const char *const usage_msg[] = {
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| 28 | "switches:",
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| 29 | "-c check syntax only",
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| 30 | "-o<outfile> place the output into <outfile>",
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| 31 | "-v print version number, then turn on verbose mode",
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| 32 | "-g produce debugging information",
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| 33 | "-B<symbol> binary <symbol> output in C language format",
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| 34 | "-e generate little endian iseq data",
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| 35 | "-E generate big endian iseq data",
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| 36 | "--verbose run at verbose mode",
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| 37 | "--version print the version",
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| 38 | "--copyright print the copyright",
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| 39 | NULL
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| 40 | };
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| 41 | const char *const *p = usage_msg;
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| 42 |
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| 43 | printf("Usage: %s [switches] programfile\n", name);
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| 44 | while (*p)
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| 45 | printf(" %s\n", *p++);
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| 46 | }
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| 47 |
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| 48 | static char *
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| 49 | get_outfilename(mrb_state *mrb, char *infile, const char *ext)
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| 50 | {
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| 51 | size_t infilelen;
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| 52 | size_t extlen;
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| 53 | char *outfile;
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| 54 | char *p;
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| 55 |
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| 56 | infilelen = strlen(infile);
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| 57 | extlen = strlen(ext);
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| 58 | outfile = (char*)mrb_malloc(mrb, infilelen + extlen + 1);
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| 59 | memcpy(outfile, infile, infilelen + 1);
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| 60 | if (*ext) {
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| 61 | if ((p = strrchr(outfile, '.')) == NULL)
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| 62 | p = outfile + infilelen;
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| 63 | memcpy(p, ext, extlen + 1);
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| 64 | }
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| 65 |
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| 66 | return outfile;
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| 67 | }
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| 68 |
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| 69 | static int
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| 70 | parse_args(mrb_state *mrb, int argc, char **argv, struct mrbc_args *args)
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| 71 | {
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| 72 | static const struct mrbc_args args_zero = { 0 };
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| 73 | int i;
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| 74 |
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| 75 | *args = args_zero;
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| 76 | args->argc = argc;
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| 77 | args->argv = argv;
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| 78 | args->prog = argv[0];
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| 79 |
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| 80 | for (i = 1; i < argc; i++) {
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| 81 | if (argv[i][0] == '-') {
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| 82 | switch ((argv[i])[1]) {
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| 83 | case 'o':
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| 84 | if (args->outfile) {
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| 85 | fprintf(stderr, "%s: an output file is already specified. (%s)\n",
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| 86 | args->prog, args->outfile);
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| 87 | return -1;
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| 88 | }
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| 89 | if (argv[i][2] == '\0' && argv[i + 1]) {
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| 90 | i++;
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| 91 | args->outfile = get_outfilename(mrb, argv[i], "");
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| 92 | }
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| 93 | else {
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| 94 | args->outfile = get_outfilename(mrb, argv[i] + 2, "");
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| 95 | }
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| 96 | break;
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| 97 | case 'B':
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| 98 | if (argv[i][2] == '\0' && argv[i + 1]) {
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| 99 | i++;
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| 100 | args->initname = argv[i];
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| 101 | }
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| 102 | else {
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| 103 | args->initname = argv[i] + 2;
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| 104 | }
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| 105 | if (*args->initname == '\0') {
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| 106 | fprintf(stderr, "%s: function name is not specified.\n", args->prog);
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| 107 | return -1;
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| 108 | }
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| 109 | break;
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| 110 | case 'c':
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| 111 | args->check_syntax = TRUE;
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| 112 | break;
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| 113 | case 'v':
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| 114 | if (!args->verbose) mrb_show_version(mrb);
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| 115 | args->verbose = TRUE;
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| 116 | break;
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| 117 | case 'g':
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| 118 | args->flags |= DUMP_DEBUG_INFO;
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| 119 | break;
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| 120 | case 'E':
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| 121 | args->flags = DUMP_ENDIAN_BIG | (args->flags & ~DUMP_ENDIAN_MASK);
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| 122 | break;
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| 123 | case 'e':
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| 124 | args->flags = DUMP_ENDIAN_LIL | (args->flags & ~DUMP_ENDIAN_MASK);
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| 125 | break;
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| 126 | case 'h':
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| 127 | return -1;
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| 128 | case '-':
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| 129 | if (argv[i][1] == '\n') {
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| 130 | return i;
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| 131 | }
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| 132 | if (strcmp(argv[i] + 2, "version") == 0) {
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| 133 | mrb_show_version(mrb);
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| 134 | exit(EXIT_SUCCESS);
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| 135 | }
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| 136 | else if (strcmp(argv[i] + 2, "verbose") == 0) {
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| 137 | args->verbose = TRUE;
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| 138 | break;
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| 139 | }
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| 140 | else if (strcmp(argv[i] + 2, "copyright") == 0) {
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| 141 | mrb_show_copyright(mrb);
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| 142 | exit(EXIT_SUCCESS);
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| 143 | }
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| 144 | return -1;
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| 145 | default:
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| 146 | return i;
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| 147 | }
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| 148 | }
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| 149 | else {
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| 150 | break;
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| 151 | }
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| 152 | }
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| 153 | if (args->verbose && args->initname && (args->flags & DUMP_ENDIAN_MASK) == 0) {
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| 154 | fprintf(stderr, "%s: generating %s endian C file. specify -e/-E for cross compiling.\n",
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| 155 | args->prog, bigendian_p() ? "big" : "little");
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| 156 | }
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| 157 | return i;
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| 158 | }
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| 159 |
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| 160 | static void
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| 161 | cleanup(mrb_state *mrb, struct mrbc_args *args)
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| 162 | {
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| 163 | mrb_free(mrb, (void*)args->outfile);
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| 164 | mrb_close(mrb);
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| 165 | }
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| 166 |
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| 167 | static int
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| 168 | partial_hook(struct mrb_parser_state *p)
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| 169 | {
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| 170 | mrbc_context *c = p->cxt;
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| 171 | struct mrbc_args *args = (struct mrbc_args *)c->partial_data;
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| 172 | const char *fn;
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| 173 |
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| 174 | if (p->f) fclose(p->f);
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| 175 | if (args->idx >= args->argc) {
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| 176 | p->f = NULL;
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| 177 | return -1;
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| 178 | }
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| 179 | fn = args->argv[args->idx++];
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| 180 | p->f = fopen(fn, "r");
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| 181 | if (p->f == NULL) {
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| 182 | fprintf(stderr, "%s: cannot open program file. (%s)\n", args->prog, fn);
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| 183 | return -1;
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| 184 | }
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| 185 | mrb_parser_set_filename(p, fn);
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| 186 | return 0;
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| 187 | }
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| 188 |
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| 189 | static mrb_value
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| 190 | load_file(mrb_state *mrb, struct mrbc_args *args)
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| 191 | {
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| 192 | mrbc_context *c;
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| 193 | mrb_value result;
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| 194 | char *input = args->argv[args->idx];
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| 195 | FILE *infile;
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| 196 | mrb_bool need_close = FALSE;
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| 197 |
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| 198 | c = mrbc_context_new(mrb);
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| 199 | if (args->verbose)
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| 200 | c->dump_result = TRUE;
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| 201 | c->no_exec = TRUE;
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| 202 | if (input[0] == '-' && input[1] == '\0') {
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| 203 | infile = stdin;
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| 204 | }
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| 205 | else {
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| 206 | need_close = TRUE;
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| 207 | if ((infile = fopen(input, "r")) == NULL) {
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| 208 | fprintf(stderr, "%s: cannot open program file. (%s)\n", args->prog, input);
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| 209 | return mrb_nil_value();
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| 210 | }
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| 211 | }
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| 212 | mrbc_filename(mrb, c, input);
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| 213 | args->idx++;
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| 214 | if (args->idx < args->argc) {
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| 215 | need_close = FALSE;
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| 216 | mrbc_partial_hook(mrb, c, partial_hook, (void*)args);
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| 217 | }
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| 218 |
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| 219 | result = mrb_load_file_cxt(mrb, infile, c);
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| 220 | if (need_close) fclose(infile);
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| 221 | mrbc_context_free(mrb, c);
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| 222 | if (mrb_undef_p(result)) {
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| 223 | return mrb_nil_value();
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| 224 | }
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| 225 | return result;
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| 226 | }
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| 227 |
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| 228 | static int
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| 229 | dump_file(mrb_state *mrb, FILE *wfp, const char *outfile, struct RProc *proc, struct mrbc_args *args)
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| 230 | {
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| 231 | int n = MRB_DUMP_OK;
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| 232 | mrb_irep *irep = proc->body.irep;
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| 233 |
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| 234 | if (args->initname) {
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| 235 | n = mrb_dump_irep_cfunc(mrb, irep, args->flags, wfp, args->initname);
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| 236 | if (n == MRB_DUMP_INVALID_ARGUMENT) {
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| 237 | fprintf(stderr, "%s: invalid C language symbol name\n", args->initname);
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| 238 | }
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| 239 | }
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| 240 | else {
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| 241 | n = mrb_dump_irep_binary(mrb, irep, args->flags, wfp);
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| 242 | }
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| 243 | if (n != MRB_DUMP_OK) {
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| 244 | fprintf(stderr, "%s: error in mrb dump (%s) %d\n", args->prog, outfile, n);
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| 245 | }
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| 246 | return n;
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| 247 | }
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| 248 |
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| 249 | int
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| 250 | mrbc_main(int argc, char **argv)
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| 251 | {
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| 252 | mrb_state *mrb = mrb_open_allocf(mrb_default_allocf, NULL, TRUE);
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| 253 | int n, result;
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| 254 | struct mrbc_args args;
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| 255 | FILE *wfp;
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| 256 | mrb_value load;
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| 257 |
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| 258 | if (mrb == NULL) {
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| 259 | fputs("Invalid mrb_state, exiting mrbc\n", stderr);
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| 260 | return EXIT_FAILURE;
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| 261 | }
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| 262 |
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| 263 | n = parse_args(mrb, argc, argv, &args);
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| 264 | if (n < 0) {
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| 265 | cleanup(mrb, &args);
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| 266 | usage(argv[0]);
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| 267 | return EXIT_FAILURE;
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| 268 | }
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| 269 | if (n == argc) {
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| 270 | fprintf(stderr, "%s: no program file given\n", args.prog);
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| 271 | return EXIT_FAILURE;
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| 272 | }
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| 273 | if (args.outfile == NULL && !args.check_syntax) {
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| 274 | if (n + 1 == argc) {
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| 275 | args.outfile = get_outfilename(mrb, argv[n], args.initname ? C_EXT : RITEBIN_EXT);
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| 276 | }
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| 277 | else {
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| 278 | fprintf(stderr, "%s: output file should be specified to compile multiple files\n", args.prog);
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| 279 | return EXIT_FAILURE;
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| 280 | }
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| 281 | }
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| 282 |
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| 283 | args.idx = n;
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| 284 | load = load_file(mrb, &args);
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| 285 | if (mrb_nil_p(load)) {
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| 286 | cleanup(mrb, &args);
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| 287 | return EXIT_FAILURE;
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| 288 | }
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| 289 | if (args.check_syntax) {
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| 290 | printf("%s:%s:Syntax OK\n", args.prog, argv[n]);
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| 291 | }
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| 292 |
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| 293 | if (args.check_syntax) {
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| 294 | cleanup(mrb, &args);
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| 295 | return EXIT_SUCCESS;
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| 296 | }
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| 297 |
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| 298 | if (args.outfile) {
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| 299 | if (strcmp("-", args.outfile) == 0) {
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| 300 | wfp = stdout;
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| 301 | }
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| 302 | else if ((wfp = fopen(args.outfile, "wb")) == NULL) {
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| 303 | fprintf(stderr, "%s: cannot open output file:(%s)\n", args.prog, args.outfile);
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| 304 | return EXIT_FAILURE;
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| 305 | }
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| 306 | }
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| 307 | else {
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| 308 | fprintf(stderr, "Output file is required\n");
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| 309 | return EXIT_FAILURE;
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| 310 | }
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| 311 | result = dump_file(mrb, wfp, args.outfile, mrb_proc_ptr(load), &args);
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| 312 | fclose(wfp);
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| 313 | cleanup(mrb, &args);
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| 314 | if (result != MRB_DUMP_OK) {
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| 315 | return EXIT_FAILURE;
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| 316 | }
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| 317 | return EXIT_SUCCESS;
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| 318 | }
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