Ruby 3.1.3p185 (2022-11-24 revision 1a6b16756e0ba6b95ab71a441357ed5484e33498)
ruby.c
1/**********************************************************************
2
3 ruby.c -
4
5 $Author$
6 created at: Tue Aug 10 12:47:31 JST 1993
7
8 Copyright (C) 1993-2007 Yukihiro Matsumoto
9 Copyright (C) 2000 Network Applied Communication Laboratory, Inc.
10 Copyright (C) 2000 Information-technology Promotion Agency, Japan
11
12**********************************************************************/
13
14#include "ruby/internal/config.h"
15
16#include <ctype.h>
17#include <stdio.h>
18#include <sys/types.h>
19
20#ifdef __CYGWIN__
21# include <windows.h>
22# include <sys/cygwin.h>
23#endif
24
25#ifdef __hpux
26# include <sys/pstat.h>
27#endif
28
29#if (defined(LOAD_RELATIVE) || defined(__MACH__)) && defined(HAVE_DLADDR)
30# include <dlfcn.h>
31#endif
32
33#ifdef HAVE_UNISTD_H
34# include <unistd.h>
35#endif
36
37#if defined(HAVE_FCNTL_H)
38# include <fcntl.h>
39#elif defined(HAVE_SYS_FCNTL_H)
40# include <sys/fcntl.h>
41#endif
42
43#ifdef HAVE_SYS_PARAM_H
44# include <sys/param.h>
45#endif
46
47#include "dln.h"
48#include "eval_intern.h"
49#include "internal.h"
50#include "internal/error.h"
51#include "internal/file.h"
52#include "internal/inits.h"
53#include "internal/io.h"
54#include "internal/load.h"
55#include "internal/loadpath.h"
56#include "internal/missing.h"
57#include "internal/object.h"
58#include "internal/parse.h"
59#include "internal/process.h"
60#include "internal/variable.h"
61#include "mjit.h"
62#include "yjit.h"
63#include "ruby/encoding.h"
64#include "ruby/thread.h"
65#include "ruby/util.h"
66#include "ruby/version.h"
67#include "ruby/internal/error.h"
68
69#ifndef MAXPATHLEN
70# define MAXPATHLEN 1024
71#endif
72#ifndef O_ACCMODE
73# define O_ACCMODE (O_RDONLY | O_WRONLY | O_RDWR)
74#endif
75
76void Init_ruby_description(void);
77
78#ifndef HAVE_STDLIB_H
79char *getenv();
80#endif
81
82#ifndef DISABLE_RUBYGEMS
83# define DISABLE_RUBYGEMS 0
84#endif
85#if DISABLE_RUBYGEMS
86#define DEFAULT_RUBYGEMS_ENABLED "disabled"
87#else
88#define DEFAULT_RUBYGEMS_ENABLED "enabled"
89#endif
90
91void rb_warning_category_update(unsigned int mask, unsigned int bits);
92
93#define COMMA ,
94#define FEATURE_BIT(bit) (1U << feature_##bit)
95#define EACH_FEATURES(X, SEP) \
96 X(gems) \
97 SEP \
98 X(error_highlight) \
99 SEP \
100 X(did_you_mean) \
101 SEP \
102 X(rubyopt) \
103 SEP \
104 X(frozen_string_literal) \
105 SEP \
106 X(mjit) \
107 SEP \
108 X(yjit)
109 /* END OF FEATURES */
110#define EACH_DEBUG_FEATURES(X, SEP) \
111 X(frozen_string_literal) \
112 /* END OF DEBUG FEATURES */
113#define AMBIGUOUS_FEATURE_NAMES 0 /* no ambiguous feature names now */
114#define DEFINE_FEATURE(bit) feature_##bit
115#define DEFINE_DEBUG_FEATURE(bit) feature_debug_##bit
116enum feature_flag_bits {
117 EACH_FEATURES(DEFINE_FEATURE, COMMA),
118 feature_debug_flag_first,
119 feature_debug_flag_begin = feature_debug_flag_first - 1,
120 EACH_DEBUG_FEATURES(DEFINE_DEBUG_FEATURE, COMMA),
121 feature_flag_count
122};
123
124#define DEBUG_BIT(bit) (1U << feature_debug_##bit)
125
126#define DUMP_BIT(bit) (1U << dump_##bit)
127#define DEFINE_DUMP(bit) dump_##bit
128#define EACH_DUMPS(X, SEP) \
129 X(version) \
130 SEP \
131 X(copyright) \
132 SEP \
133 X(usage) \
134 SEP \
135 X(help) \
136 SEP \
137 X(yydebug) \
138 SEP \
139 X(syntax) \
140 SEP \
141 X(parsetree) \
142 SEP \
143 X(parsetree_with_comment) \
144 SEP \
145 X(insns) \
146 SEP \
147 X(insns_without_opt) \
148 /* END OF DUMPS */
149enum dump_flag_bits {
150 dump_version_v,
151 EACH_DUMPS(DEFINE_DUMP, COMMA),
152 dump_exit_bits = (DUMP_BIT(yydebug) | DUMP_BIT(syntax) |
153 DUMP_BIT(parsetree) | DUMP_BIT(parsetree_with_comment) |
154 DUMP_BIT(insns) | DUMP_BIT(insns_without_opt))
155};
156
158
159typedef struct {
160 unsigned int mask;
161 unsigned int set;
163
164static inline void
165rb_feature_set_to(ruby_features_t *feat, unsigned int bit_mask, unsigned int bit_set)
166{
167 feat->mask |= bit_mask;
168 feat->set = (feat->set & ~bit_mask) | bit_set;
169}
170
171#define FEATURE_SET_TO(feat, bit_mask, bit_set) \
172 rb_feature_set_to(&(feat), bit_mask, bit_set)
173#define FEATURE_SET(feat, bits) FEATURE_SET_TO(feat, bits, bits)
174#define FEATURE_SET_RESTORE(feat, save) FEATURE_SET_TO(feat, (save).mask, (save).set & (save).mask)
175#define FEATURE_SET_P(feat, bits) ((feat).set & (bits))
176
178 const char *script;
179 VALUE script_name;
180 VALUE e_script;
181 struct {
182 struct {
183 VALUE name;
184 int index;
185 } enc;
186 } src, ext, intern;
187 VALUE req_list;
188 ruby_features_t features;
189 ruby_features_t warn;
190 unsigned int dump;
191#if USE_MJIT
192 struct mjit_options mjit;
193#endif
194 struct rb_yjit_options yjit;
195
196 int sflag, xflag;
197 unsigned int warning: 1;
198 unsigned int verbose: 1;
199 unsigned int do_loop: 1;
200 unsigned int do_print: 1;
201 unsigned int do_line: 1;
202 unsigned int do_split: 1;
203 unsigned int do_search: 1;
204 unsigned int setids: 2;
205};
206
207static void init_ids(ruby_cmdline_options_t *);
208
209#define src_encoding_index GET_VM()->src_encoding_index
210
211enum {
212 COMPILATION_FEATURES = (
213 0
214 | FEATURE_BIT(frozen_string_literal)
215 | FEATURE_BIT(debug_frozen_string_literal)
216 ),
217 DEFAULT_FEATURES = (
218 (FEATURE_BIT(debug_flag_first)-1)
219#if DISABLE_RUBYGEMS
220 & ~FEATURE_BIT(gems)
221#endif
222 & ~FEATURE_BIT(frozen_string_literal)
223 & ~FEATURE_BIT(mjit)
224 & ~FEATURE_BIT(yjit)
225 )
226};
227
229cmdline_options_init(ruby_cmdline_options_t *opt)
230{
231 MEMZERO(opt, *opt, 1);
232 init_ids(opt);
233 opt->src.enc.index = src_encoding_index;
234 opt->ext.enc.index = -1;
235 opt->intern.enc.index = -1;
236 opt->features.set = DEFAULT_FEATURES;
237#ifdef MJIT_FORCE_ENABLE /* to use with: ./configure cppflags="-DMJIT_FORCE_ENABLE" */
238 opt->features.set |= FEATURE_BIT(mjit);
239#elif defined(YJIT_FORCE_ENABLE)
240 opt->features.set |= FEATURE_BIT(yjit);
241#endif
242
243 if (getenv("RUBY_YJIT_ENABLE")) {
244 opt->features.set |= FEATURE_BIT(yjit);
245 }
246
247 return opt;
248}
249
250static rb_ast_t *load_file(VALUE parser, VALUE fname, VALUE f, int script,
252static VALUE open_load_file(VALUE fname_v, int *xflag);
253static void forbid_setid(const char *, const ruby_cmdline_options_t *);
254#define forbid_setid(s) forbid_setid((s), opt)
255
256static struct {
257 int argc;
258 char **argv;
259} origarg;
260
261static const char esc_standout[] = "\n\033[1;7m";
262static const char esc_bold[] = "\033[1m";
263static const char esc_reset[] = "\033[0m";
264static const char esc_none[] = "";
265
266static void
267show_usage_line(const char *str, unsigned int namelen, unsigned int secondlen, int help, int highlight, unsigned int w)
268{
269 const char *sb = highlight ? esc_bold : esc_none;
270 const char *se = highlight ? esc_reset : esc_none;
271 const int wrap = help && namelen + secondlen - 1 > w;
272 printf(" %s%.*s%-*.*s%s%-*s%s\n", sb, namelen-1, str,
273 (wrap ? 0 : w - namelen + 1),
274 (help ? secondlen-1 : 0), str + namelen, se,
275 (wrap ? w + 3 : 0), (wrap ? "\n" : ""),
276 str + namelen + secondlen);
277}
278
279static void
280usage(const char *name, int help, int highlight, int columns)
281{
282 /* This message really ought to be max 23 lines.
283 * Removed -h because the user already knows that option. Others? */
284
285 struct message {
286 const char *str;
287 unsigned short namelen, secondlen;
288 };
289#define M(shortopt, longopt, desc) { \
290 shortopt " " longopt " " desc, \
291 (unsigned short)sizeof(shortopt), \
292 (unsigned short)sizeof(longopt), \
293}
294#if YJIT_SUPPORTED_P
295# define PLATFORM_JIT_OPTION "--yjit"
296#else
297# define PLATFORM_JIT_OPTION "--mjit"
298#endif
299 static const struct message usage_msg[] = {
300 M("-0[octal]", "", "specify record separator (\\0, if no argument)"),
301 M("-a", "", "autosplit mode with -n or -p (splits $_ into $F)"),
302 M("-c", "", "check syntax only"),
303 M("-Cdirectory", "", "cd to directory before executing your script"),
304 M("-d", ", --debug", "set debugging flags (set $DEBUG to true)"),
305 M("-e 'command'", "", "one line of script. Several -e's allowed. Omit [programfile]"),
306 M("-Eex[:in]", ", --encoding=ex[:in]", "specify the default external and internal character encodings"),
307 M("-Fpattern", "", "split() pattern for autosplit (-a)"),
308 M("-i[extension]", "", "edit ARGV files in place (make backup if extension supplied)"),
309 M("-Idirectory", "", "specify $LOAD_PATH directory (may be used more than once)"),
310 M("-l", "", "enable line ending processing"),
311 M("-n", "", "assume 'while gets(); ... end' loop around your script"),
312 M("-p", "", "assume loop like -n but print line also like sed"),
313 M("-rlibrary", "", "require the library before executing your script"),
314 M("-s", "", "enable some switch parsing for switches after script name"),
315 M("-S", "", "look for the script using PATH environment variable"),
316 M("-v", "", "print the version number, then turn on verbose mode"),
317 M("-w", "", "turn warnings on for your script"),
318 M("-W[level=2|:category]", "", "set warning level; 0=silence, 1=medium, 2=verbose"),
319 M("-x[directory]", "", "strip off text before #!ruby line and perhaps cd to directory"),
320 M("--jit", "", "enable JIT for the platform, same as " PLATFORM_JIT_OPTION " (experimental)"),
321 M("--mjit", "", "enable C compiler-based JIT compiler (experimental)"),
322 M("--yjit", "", "enable in-process JIT compiler (experimental)"),
323 M("-h", "", "show this message, --help for more info"),
324 };
325 static const struct message help_msg[] = {
326 M("--copyright", "", "print the copyright"),
327 M("--dump={insns|parsetree|...}[,...]", "",
328 "dump debug information. see below for available dump list"),
329 M("--enable={mjit|rubyopt|...}[,...]", ", --disable={mjit|rubyopt|...}[,...]",
330 "enable or disable features. see below for available features"),
331 M("--external-encoding=encoding", ", --internal-encoding=encoding",
332 "specify the default external or internal character encoding"),
333 M("--backtrace-limit=num", "", "limit the maximum length of backtrace"),
334 M("--verbose", "", "turn on verbose mode and disable script from stdin"),
335 M("--version", "", "print the version number, then exit"),
336 M("--help", "", "show this message, -h for short message"),
337 };
338 static const struct message dumps[] = {
339 M("insns", "", "instruction sequences"),
340 M("insns_without_opt", "", "instruction sequences compiled with no optimization"),
341 M("yydebug", "", "yydebug of yacc parser generator"),
342 M("parsetree", "", "AST"),
343 M("parsetree_with_comment", "", "AST with comments"),
344 };
345 static const struct message features[] = {
346 M("gems", "", "rubygems (only for debugging, default: "DEFAULT_RUBYGEMS_ENABLED")"),
347 M("error_highlight", "", "error_highlight (default: "DEFAULT_RUBYGEMS_ENABLED")"),
348 M("did_you_mean", "", "did_you_mean (default: "DEFAULT_RUBYGEMS_ENABLED")"),
349 M("rubyopt", "", "RUBYOPT environment variable (default: enabled)"),
350 M("frozen-string-literal", "", "freeze all string literals (default: disabled)"),
351 M("mjit", "", "C compiler-based JIT compiler (default: disabled)"),
352 M("yjit", "", "in-process JIT compiler (default: disabled)"),
353 };
354 static const struct message warn_categories[] = {
355 M("deprecated", "", "deprecated features"),
356 M("experimental", "", "experimental features"),
357 };
358 static const struct message mjit_options[] = {
359 M("--mjit-warnings", "", "Enable printing JIT warnings"),
360 M("--mjit-debug", "", "Enable JIT debugging (very slow), or add cflags if specified"),
361 M("--mjit-wait", "", "Wait until JIT compilation finishes every time (for testing)"),
362 M("--mjit-save-temps", "", "Save JIT temporary files in $TMP or /tmp (for testing)"),
363 M("--mjit-verbose=num", "", "Print JIT logs of level num or less to stderr (default: 0)"),
364 M("--mjit-max-cache=num", "", "Max number of methods to be JIT-ed in a cache (default: 10000)"),
365 M("--mjit-min-calls=num", "", "Number of calls to trigger JIT (for testing, default: 10000)"),
366 };
367 static const struct message yjit_options[] = {
368#if YJIT_STATS
369 M("--yjit-stats", "", "Enable collecting YJIT statistics"),
370#endif
371 M("--yjit-exec-mem-size=num", "", "Size of executable memory block in MiB (default: 256)"),
372 M("--yjit-call-threshold", "", "Number of calls to trigger JIT (default: 10)"),
373 M("--yjit-max-versions", "", "Maximum number of versions per basic block (default: 4)"),
374 M("--yjit-greedy-versioning", "", "Greedy versioning mode (default: disabled)"),
375 };
376 int i;
377 const char *sb = highlight ? esc_standout+1 : esc_none;
378 const char *se = highlight ? esc_reset : esc_none;
379 const int num = numberof(usage_msg) - (help ? 1 : 0);
380 unsigned int w = (columns > 80 ? (columns - 79) / 2 : 0) + 16;
381#define SHOW(m) show_usage_line((m).str, (m).namelen, (m).secondlen, help, highlight, w)
382
383 printf("%sUsage:%s %s [switches] [--] [programfile] [arguments]\n", sb, se, name);
384 for (i = 0; i < num; ++i)
385 SHOW(usage_msg[i]);
386
387 if (!help) return;
388
389 if (highlight) sb = esc_standout;
390
391 for (i = 0; i < numberof(help_msg); ++i)
392 SHOW(help_msg[i]);
393 printf("%s""Dump List:%s\n", sb, se);
394 for (i = 0; i < numberof(dumps); ++i)
395 SHOW(dumps[i]);
396 printf("%s""Features:%s\n", sb, se);
397 for (i = 0; i < numberof(features); ++i)
398 SHOW(features[i]);
399 printf("%s""Warning categories:%s\n", sb, se);
400 for (i = 0; i < numberof(warn_categories); ++i)
401 SHOW(warn_categories[i]);
402 printf("%s""MJIT options (experimental):%s\n", sb, se);
403 for (i = 0; i < numberof(mjit_options); ++i)
404 SHOW(mjit_options[i]);
405 printf("%s""YJIT options (experimental):%s\n", sb, se);
406 for (i = 0; i < numberof(yjit_options); ++i)
407 SHOW(yjit_options[i]);
408}
409
410#define rubylib_path_new rb_str_new
411
412static void
413push_include(const char *path, VALUE (*filter)(VALUE))
414{
415 const char sep = PATH_SEP_CHAR;
416 const char *p, *s;
417 VALUE load_path = GET_VM()->load_path;
418
419 p = path;
420 while (*p) {
421 while (*p == sep)
422 p++;
423 if (!*p) break;
424 for (s = p; *s && *s != sep; s = CharNext(s));
425 rb_ary_push(load_path, (*filter)(rubylib_path_new(p, s - p)));
426 p = s;
427 }
428}
429
430#ifdef __CYGWIN__
431static void
432push_include_cygwin(const char *path, VALUE (*filter)(VALUE))
433{
434 const char *p, *s;
435 char rubylib[FILENAME_MAX];
436 VALUE buf = 0;
437
438 p = path;
439 while (*p) {
440 unsigned int len;
441 while (*p == ';')
442 p++;
443 if (!*p) break;
444 for (s = p; *s && *s != ';'; s = CharNext(s));
445 len = s - p;
446 if (*s) {
447 if (!buf) {
448 buf = rb_str_new(p, len);
449 p = RSTRING_PTR(buf);
450 }
451 else {
452 rb_str_resize(buf, len);
453 p = strncpy(RSTRING_PTR(buf), p, len);
454 }
455 }
456#ifdef HAVE_CYGWIN_CONV_PATH
457#define CONV_TO_POSIX_PATH(p, lib) \
458 cygwin_conv_path(CCP_WIN_A_TO_POSIX|CCP_RELATIVE, (p), (lib), sizeof(lib))
459#else
460# error no cygwin_conv_path
461#endif
462 if (CONV_TO_POSIX_PATH(p, rubylib) == 0)
463 p = rubylib;
464 push_include(p, filter);
465 if (!*s) break;
466 p = s + 1;
467 }
468}
469
470#define push_include push_include_cygwin
471#endif
472
473void
474ruby_push_include(const char *path, VALUE (*filter)(VALUE))
475{
476 if (path == 0)
477 return;
478 push_include(path, filter);
479}
480
481static VALUE
482identical_path(VALUE path)
483{
484 return path;
485}
486static VALUE
487locale_path(VALUE path)
488{
490 return path;
491}
492
493void
494ruby_incpush(const char *path)
495{
496 ruby_push_include(path, locale_path);
497}
498
499static VALUE
500expand_include_path(VALUE path)
501{
502 char *p = RSTRING_PTR(path);
503 if (!p)
504 return path;
505 if (*p == '.' && p[1] == '/')
506 return path;
507 return rb_file_expand_path(path, Qnil);
508}
509
510void
511ruby_incpush_expand(const char *path)
512{
513 ruby_push_include(path, expand_include_path);
514}
515
516#undef UTF8_PATH
517#if defined _WIN32 || defined __CYGWIN__
518static HMODULE libruby;
519
520BOOL WINAPI
521DllMain(HINSTANCE dll, DWORD reason, LPVOID reserved)
522{
523 if (reason == DLL_PROCESS_ATTACH)
524 libruby = dll;
525 return TRUE;
526}
527
528HANDLE
529rb_libruby_handle(void)
530{
531 return libruby;
532}
533
534static inline void
535translit_char_bin(char *p, int from, int to)
536{
537 while (*p) {
538 if ((unsigned char)*p == from)
539 *p = to;
540 p++;
541 }
542}
543#endif
544
545#ifdef _WIN32
546# define UTF8_PATH 1
547#endif
548
549#ifndef UTF8_PATH
550# define UTF8_PATH 0
551#endif
552#if UTF8_PATH
553# define IF_UTF8_PATH(t, f) t
554#else
555# define IF_UTF8_PATH(t, f) f
556#endif
557
558#if UTF8_PATH
559static VALUE
560str_conv_enc(VALUE str, rb_encoding *from, rb_encoding *to)
561{
562 return rb_str_conv_enc_opts(str, from, to,
564 Qnil);
565}
566#else
567# define str_conv_enc(str, from, to) (str)
568#endif
569
570void ruby_init_loadpath(void);
571
572#if defined(LOAD_RELATIVE) || defined(__MACH__)
573static VALUE
574runtime_libruby_path(void)
575{
576#if defined _WIN32 || defined __CYGWIN__
577 DWORD len, ret;
578#if USE_RVARGC
579 len = 32;
580#else
582#endif
583 VALUE path;
584 VALUE wsopath = rb_str_new(0, len*sizeof(WCHAR));
585 WCHAR *wlibpath;
586 char *libpath;
587
588 while (wlibpath = (WCHAR *)RSTRING_PTR(wsopath),
589 ret = GetModuleFileNameW(libruby, wlibpath, len),
590 (ret == len))
591 {
592 rb_str_modify_expand(wsopath, len*sizeof(WCHAR));
593 rb_str_set_len(wsopath, (len += len)*sizeof(WCHAR));
594 }
595 if (!ret || ret > len) rb_fatal("failed to get module file name");
596#if defined __CYGWIN__
597 {
598 const int win_to_posix = CCP_WIN_W_TO_POSIX | CCP_RELATIVE;
599 size_t newsize = cygwin_conv_path(win_to_posix, wlibpath, 0, 0);
600 if (!newsize) rb_fatal("failed to convert module path to cygwin");
601 path = rb_str_new(0, newsize);
602 libpath = RSTRING_PTR(path);
603 if (cygwin_conv_path(win_to_posix, wlibpath, libpath, newsize)) {
604 rb_str_resize(path, 0);
605 }
606 }
607#else
608 {
609 DWORD i;
610 for (len = ret, i = 0; i < len; ++i) {
611 if (wlibpath[i] == L'\\') {
612 wlibpath[i] = L'/';
613 ret = i+1; /* chop after the last separator */
614 }
615 }
616 }
617 len = WideCharToMultiByte(CP_UTF8, 0, wlibpath, ret, NULL, 0, NULL, NULL);
618 path = rb_utf8_str_new(0, len);
619 libpath = RSTRING_PTR(path);
620 WideCharToMultiByte(CP_UTF8, 0, wlibpath, ret, libpath, len, NULL, NULL);
621#endif
622 rb_str_resize(wsopath, 0);
623 return path;
624#elif defined(HAVE_DLADDR)
625 Dl_info dli;
626 VALUE fname, path;
627 const void* addr = (void *)(VALUE)expand_include_path;
628
629 if (!dladdr((void *)addr, &dli)) {
630 return rb_str_new(0, 0);
631 }
632#ifdef __linux__
633 else if (origarg.argc > 0 && origarg.argv && dli.dli_fname == origarg.argv[0]) {
634 fname = rb_str_new_cstr("/proc/self/exe");
635 path = rb_readlink(fname, NULL);
636 }
637#endif
638 else {
639 fname = rb_str_new_cstr(dli.dli_fname);
640 path = rb_realpath_internal(Qnil, fname, 1);
641 }
642 rb_str_resize(fname, 0);
643 return path;
644#else
645# error relative load path is not supported on this platform.
646#endif
647}
648#endif
649
650#define INITIAL_LOAD_PATH_MARK rb_intern_const("@gem_prelude_index")
651
652VALUE ruby_archlibdir_path, ruby_prefix_path;
653#if defined(__MACH__)
654// A path to libruby.dylib itself or where it's statically linked to.
655VALUE rb_libruby_selfpath;
656#endif
657
658void
660{
661 VALUE load_path, archlibdir = 0;
662 ID id_initial_load_path_mark;
663 const char *paths = ruby_initial_load_paths;
664#if defined(LOAD_RELATIVE) || defined(__MACH__)
665 VALUE libruby_path = runtime_libruby_path();
666# if defined(__MACH__)
667 rb_libruby_selfpath = libruby_path;
668 rb_gc_register_address(&rb_libruby_selfpath);
669# endif
670#endif
671
672#if defined LOAD_RELATIVE
673#if !defined ENABLE_MULTIARCH
674# define RUBY_ARCH_PATH ""
675#elif defined RUBY_ARCH
676# define RUBY_ARCH_PATH "/"RUBY_ARCH
677#else
678# define RUBY_ARCH_PATH "/"RUBY_PLATFORM
679#endif
680 char *libpath;
681 VALUE sopath;
682 size_t baselen;
683 const char *p;
684
685 sopath = libruby_path;
686 libpath = RSTRING_PTR(sopath);
687
688 p = strrchr(libpath, '/');
689 if (p) {
690 static const char libdir[] = "/"
691#ifdef LIBDIR_BASENAME
692 LIBDIR_BASENAME
693#else
694 "lib"
695#endif
696 RUBY_ARCH_PATH;
697 const ptrdiff_t libdir_len = (ptrdiff_t)sizeof(libdir)
698 - rb_strlen_lit(RUBY_ARCH_PATH) - 1;
699 static const char bindir[] = "/bin";
700 const ptrdiff_t bindir_len = (ptrdiff_t)sizeof(bindir) - 1;
701
702 const char *p2 = NULL;
703
704#ifdef ENABLE_MULTIARCH
705 multiarch:
706#endif
707 if (p - libpath >= bindir_len && !STRNCASECMP(p - bindir_len, bindir, bindir_len)) {
708 p -= bindir_len;
709 archlibdir = rb_str_subseq(sopath, 0, p - libpath);
710 rb_str_cat_cstr(archlibdir, libdir);
711 OBJ_FREEZE_RAW(archlibdir);
712 }
713 else if (p - libpath >= libdir_len && !strncmp(p - libdir_len, libdir, libdir_len)) {
714 archlibdir = rb_str_subseq(sopath, 0, (p2 ? p2 : p) - libpath);
715 OBJ_FREEZE_RAW(archlibdir);
716 p -= libdir_len;
717 }
718#ifdef ENABLE_MULTIARCH
719 else if (p2) {
720 p = p2;
721 }
722 else {
723 p2 = p;
725 if (p) goto multiarch;
726 p = p2;
727 }
728#endif
729 baselen = p - libpath;
730 }
731 else {
732 baselen = 0;
733 }
734 rb_str_resize(sopath, baselen);
735 libpath = RSTRING_PTR(sopath);
736#define PREFIX_PATH() sopath
737#define BASEPATH() rb_str_buf_cat(rb_str_buf_new(baselen+len), libpath, baselen)
738#define RUBY_RELATIVE(path, len) rb_str_buf_cat(BASEPATH(), (path), (len))
739#else
740 const size_t exec_prefix_len = strlen(ruby_exec_prefix);
741#define RUBY_RELATIVE(path, len) rubylib_path_new((path), (len))
742#define PREFIX_PATH() RUBY_RELATIVE(ruby_exec_prefix, exec_prefix_len)
743#endif
744 rb_gc_register_address(&ruby_prefix_path);
745 ruby_prefix_path = PREFIX_PATH();
746 OBJ_FREEZE_RAW(ruby_prefix_path);
747 if (!archlibdir) archlibdir = ruby_prefix_path;
748 rb_gc_register_address(&ruby_archlibdir_path);
749 ruby_archlibdir_path = archlibdir;
750
751 load_path = GET_VM()->load_path;
752
753 ruby_push_include(getenv("RUBYLIB"), identical_path);
754
755 id_initial_load_path_mark = INITIAL_LOAD_PATH_MARK;
756 while (*paths) {
757 size_t len = strlen(paths);
758 VALUE path = RUBY_RELATIVE(paths, len);
759 rb_ivar_set(path, id_initial_load_path_mark, path);
760 rb_ary_push(load_path, path);
761 paths += len + 1;
762 }
763
764 rb_const_set(rb_cObject, rb_intern_const("TMP_RUBY_PREFIX"), ruby_prefix_path);
765}
766
767
768static void
769add_modules(VALUE *req_list, const char *mod)
770{
771 VALUE list = *req_list;
772 VALUE feature;
773
774 if (!list) {
775 *req_list = list = rb_ary_tmp_new(0);
776 }
777 feature = rb_str_cat_cstr(rb_str_tmp_new(0), mod);
778 rb_ary_push(list, feature);
779}
780
781static void
782require_libraries(VALUE *req_list)
783{
784 VALUE list = *req_list;
785 VALUE self = rb_vm_top_self();
786 ID require;
788
789 CONST_ID(require, "require");
790 while (list && RARRAY_LEN(list) > 0) {
791 VALUE feature = rb_ary_shift(list);
792 rb_enc_associate(feature, extenc);
793 RBASIC_SET_CLASS_RAW(feature, rb_cString);
794 OBJ_FREEZE(feature);
795 rb_funcallv(self, require, 1, &feature);
796 }
797 *req_list = 0;
798}
799
800static const struct rb_block*
801toplevel_context(rb_binding_t *bind)
802{
803 return &bind->block;
804}
805
806static void
807process_sflag(int *sflag)
808{
809 if (*sflag > 0) {
810 long n;
811 const VALUE *args;
812 VALUE argv = rb_argv;
813
814 n = RARRAY_LEN(argv);
815 args = RARRAY_CONST_PTR(argv);
816 while (n > 0) {
817 VALUE v = *args++;
818 char *s = StringValuePtr(v);
819 char *p;
820 int hyphen = FALSE;
821
822 if (s[0] != '-')
823 break;
824 n--;
825 if (s[1] == '-' && s[2] == '\0')
826 break;
827
828 v = Qtrue;
829 /* check if valid name before replacing - with _ */
830 for (p = s + 1; *p; p++) {
831 if (*p == '=') {
832 *p++ = '\0';
833 v = rb_str_new2(p);
834 break;
835 }
836 if (*p == '-') {
837 hyphen = TRUE;
838 }
839 else if (*p != '_' && !ISALNUM(*p)) {
840 VALUE name_error[2];
841 name_error[0] =
842 rb_str_new2("invalid name for global variable - ");
843 if (!(p = strchr(p, '='))) {
844 rb_str_cat2(name_error[0], s);
845 }
846 else {
847 rb_str_cat(name_error[0], s, p - s);
848 }
849 name_error[1] = args[-1];
850 rb_exc_raise(rb_class_new_instance(2, name_error, rb_eNameError));
851 }
852 }
853 s[0] = '$';
854 if (hyphen) {
855 for (p = s + 1; *p; ++p) {
856 if (*p == '-')
857 *p = '_';
858 }
859 }
860 rb_gv_set(s, v);
861 }
862 n = RARRAY_LEN(argv) - n;
863 while (n--) {
864 rb_ary_shift(argv);
865 }
866 *sflag = -1;
867 }
868}
869
870static long proc_options(long argc, char **argv, ruby_cmdline_options_t *opt, int envopt);
871
872static void
873moreswitches(const char *s, ruby_cmdline_options_t *opt, int envopt)
874{
875 long argc, i, len;
876 char **argv, *p;
877 const char *ap = 0;
878 VALUE argstr, argary;
879 void *ptr;
880
881 while (ISSPACE(*s)) s++;
882 if (!*s) return;
883 argstr = rb_str_tmp_new((len = strlen(s)) + (envopt!=0));
884 argary = rb_str_tmp_new(0);
885
886 p = RSTRING_PTR(argstr);
887 if (envopt) *p++ = ' ';
888 memcpy(p, s, len + 1);
889 ap = 0;
890 rb_str_cat(argary, (char *)&ap, sizeof(ap));
891 while (*p) {
892 ap = p;
893 rb_str_cat(argary, (char *)&ap, sizeof(ap));
894 while (*p && !ISSPACE(*p)) ++p;
895 if (!*p) break;
896 *p++ = '\0';
897 while (ISSPACE(*p)) ++p;
898 }
899 argc = RSTRING_LEN(argary) / sizeof(ap);
900 ap = 0;
901 rb_str_cat(argary, (char *)&ap, sizeof(ap));
902 argv = ptr = ALLOC_N(char *, argc);
903 MEMMOVE(argv, RSTRING_PTR(argary), char *, argc);
904
905 while ((i = proc_options(argc, argv, opt, envopt)) > 1 && envopt && (argc -= i) > 0) {
906 argv += i;
907 if (**argv != '-') {
908 *--*argv = '-';
909 }
910 if ((*argv)[1]) {
911 ++argc;
912 --argv;
913 }
914 }
915
916 ruby_xfree(ptr);
917 /* get rid of GC */
918 rb_str_resize(argary, 0);
919 rb_str_resize(argstr, 0);
920}
921
922static int
923name_match_p(const char *name, const char *str, size_t len)
924{
925 if (len == 0) return 0;
926 while (1) {
927 while (TOLOWER(*str) == *name) {
928 if (!--len || !*++str) return 1;
929 ++name;
930 }
931 if (*str != '-' && *str != '_') return 0;
932 while (ISALNUM(*name)) name++;
933 if (*name != '-' && *name != '_') return 0;
934 ++name;
935 ++str;
936 }
937}
938
939#define NAME_MATCH_P(name, str, len) \
940 ((len) < (int)sizeof(name) && name_match_p((name), (str), (len)))
941
942#define UNSET_WHEN(name, bit, str, len) \
943 if (NAME_MATCH_P((name), (str), (len))) { \
944 *(unsigned int *)arg &= ~(bit); \
945 return; \
946 }
947
948#define SET_WHEN(name, bit, str, len) \
949 if (NAME_MATCH_P((name), (str), (len))) { \
950 *(unsigned int *)arg |= (bit); \
951 return; \
952 }
953
954#define LITERAL_NAME_ELEMENT(name) #name
955
956static void
957feature_option(const char *str, int len, void *arg, const unsigned int enable)
958{
959 static const char list[] = EACH_FEATURES(LITERAL_NAME_ELEMENT, ", ");
960 ruby_features_t *argp = arg;
961 unsigned int mask = ~0U;
962 unsigned int set = 0U;
963#if AMBIGUOUS_FEATURE_NAMES
964 int matched = 0;
965# define FEATURE_FOUND ++matched
966#else
967# define FEATURE_FOUND goto found
968#endif
969#define SET_FEATURE(bit) \
970 if (NAME_MATCH_P(#bit, str, len)) {set |= mask = FEATURE_BIT(bit); FEATURE_FOUND;}
971 EACH_FEATURES(SET_FEATURE, ;);
972 if (NAME_MATCH_P("jit", str, len)) { // This allows you to cancel --jit
973#if defined(MJIT_FORCE_ENABLE) || !YJIT_SUPPORTED_P
974 set |= mask = FEATURE_BIT(mjit);
975#else
976 set |= mask = FEATURE_BIT(yjit);
977#endif
978 goto found;
979 }
980 if (NAME_MATCH_P("all", str, len)) {
981 // YJIT and MJIT cannot be enabled at the same time. We enable only YJIT for --enable=all.
982#if defined(MJIT_FORCE_ENABLE) || !YJIT_SUPPORTED_P
983 mask &= ~(FEATURE_BIT(yjit));
984#else
985 mask &= ~(FEATURE_BIT(mjit));
986#endif
987 goto found;
988 }
989#if AMBIGUOUS_FEATURE_NAMES
990 if (matched == 1) goto found;
991 if (matched > 1) {
992 VALUE mesg = rb_sprintf("ambiguous feature: `%.*s' (", len, str);
993#define ADD_FEATURE_NAME(bit) \
994 if (FEATURE_BIT(bit) & set) { \
995 rb_str_cat_cstr(mesg, #bit); \
996 if (--matched) rb_str_cat_cstr(mesg, ", "); \
997 }
998 EACH_FEATURES(ADD_FEATURE_NAME, ;);
999 rb_str_cat_cstr(mesg, ")");
1000 rb_exc_raise(rb_exc_new_str(rb_eRuntimeError, mesg));
1001#undef ADD_FEATURE_NAME
1002 }
1003#else
1004 (void)set;
1005#endif
1006 rb_warn("unknown argument for --%s: `%.*s'",
1007 enable ? "enable" : "disable", len, str);
1008 rb_warn("features are [%.*s].", (int)strlen(list), list);
1009 return;
1010
1011 found:
1012 FEATURE_SET_TO(*argp, mask, (mask & enable));
1013 return;
1014}
1015
1016static void
1017enable_option(const char *str, int len, void *arg)
1018{
1019 feature_option(str, len, arg, ~0U);
1020}
1021
1022static void
1023disable_option(const char *str, int len, void *arg)
1024{
1025 feature_option(str, len, arg, 0U);
1026}
1027
1029int ruby_env_debug_option(const char *str, int len, void *arg);
1030
1031static void
1032debug_option(const char *str, int len, void *arg)
1033{
1034 static const char list[] = EACH_DEBUG_FEATURES(LITERAL_NAME_ELEMENT, ", ");
1035 ruby_features_t *argp = arg;
1036#define SET_WHEN_DEBUG(bit) \
1037 if (NAME_MATCH_P(#bit, str, len)) { \
1038 FEATURE_SET(*argp, DEBUG_BIT(bit)); \
1039 return; \
1040 }
1041 EACH_DEBUG_FEATURES(SET_WHEN_DEBUG, ;);
1042#ifdef RUBY_DEVEL
1043 if (ruby_patchlevel < 0 && ruby_env_debug_option(str, len, 0)) return;
1044#endif
1045 rb_warn("unknown argument for --debug: `%.*s'", len, str);
1046 rb_warn("debug features are [%.*s].", (int)strlen(list), list);
1047}
1048
1049static void
1050dump_option(const char *str, int len, void *arg)
1051{
1052 static const char list[] = EACH_DUMPS(LITERAL_NAME_ELEMENT, ", ");
1053#define SET_WHEN_DUMP(bit) SET_WHEN(#bit, DUMP_BIT(bit), str, len)
1054 EACH_DUMPS(SET_WHEN_DUMP, ;);
1055 rb_warn("don't know how to dump `%.*s',", len, str);
1056 rb_warn("but only [%.*s].", (int)strlen(list), list);
1057}
1058
1059static void
1060set_option_encoding_once(const char *type, VALUE *name, const char *e, long elen)
1061{
1062 VALUE ename;
1063
1064 if (!elen) elen = strlen(e);
1065 ename = rb_str_new(e, elen);
1066
1067 if (*name &&
1068 rb_funcall(ename, rb_intern("casecmp"), 1, *name) != INT2FIX(0)) {
1069 rb_raise(rb_eRuntimeError,
1070 "%s already set to %"PRIsVALUE, type, *name);
1071 }
1072 *name = ename;
1073}
1074
1075#define set_internal_encoding_once(opt, e, elen) \
1076 set_option_encoding_once("default_internal", &(opt)->intern.enc.name, (e), (elen))
1077#define set_external_encoding_once(opt, e, elen) \
1078 set_option_encoding_once("default_external", &(opt)->ext.enc.name, (e), (elen))
1079#define set_source_encoding_once(opt, e, elen) \
1080 set_option_encoding_once("source", &(opt)->src.enc.name, (e), (elen))
1081
1082#define opt_match(s, l, name) \
1083 ((((l) > rb_strlen_lit(name)) ? (s)[rb_strlen_lit(name)] == '=' : \
1084 (l) == rb_strlen_lit(name)) && \
1085 memcmp((s), name, rb_strlen_lit(name)) == 0 && \
1086 (((s) += rb_strlen_lit(name)), 1))
1087#define opt_match_noarg(s, l, name) \
1088 opt_match(s, l, name) && (*(s) ? (rb_warn("argument to --jit-" name " is ignored"), 1) : 1)
1089#define opt_match_arg(s, l, name) \
1090 opt_match(s, l, name) && (*(s) ? 1 : (rb_raise(rb_eRuntimeError, "--jit-" name " needs an argument"), 0))
1091
1092#define yjit_opt_match_noarg(s, l, name) \
1093 opt_match(s, l, name) && (*(s) ? (rb_warn("argument to --yjit-" name " is ignored"), 1) : 1)
1094#define yjit_opt_match_arg(s, l, name) \
1095 opt_match(s, l, name) && (*(s) && *(s+1) ? 1 : (rb_raise(rb_eRuntimeError, "--yjit-" name " needs an argument"), 0))
1096
1097static bool
1098setup_yjit_options(const char *s, struct rb_yjit_options *yjit_opt)
1099{
1100 const char prefix[] = "yjit-";
1101 if (strncmp(prefix, s, sizeof(prefix)-1) != 0) {
1102 return false;
1103 }
1104 s += sizeof(prefix)-1;
1105 const size_t l = strlen(s);
1106 if (l == 0) {
1107 return false;
1108 }
1109
1110 if (yjit_opt_match_arg(s, l, "exec-mem-size")) {
1111 yjit_opt->exec_mem_size = atoi(s + 1);
1112 }
1113 else if (yjit_opt_match_arg(s, l, "call-threshold")) {
1114 yjit_opt->call_threshold = atoi(s + 1);
1115 }
1116 else if (yjit_opt_match_arg(s, l, "max-versions")) {
1117 yjit_opt->max_versions = atoi(s + 1);
1118 }
1119 else if (yjit_opt_match_noarg(s, l, "greedy-versioning")) {
1120 yjit_opt->greedy_versioning = true;
1121 }
1122 else if (yjit_opt_match_noarg(s, l, "no-type-prop")) {
1123 yjit_opt->no_type_prop = true;
1124 }
1125 else if (yjit_opt_match_noarg(s, l, "stats")) {
1126 yjit_opt->gen_stats = true;
1127 }
1128 else {
1129 rb_raise(rb_eRuntimeError,
1130 "invalid yjit option `%s' (--help will show valid yjit options)", s);
1131 }
1132 return true;
1133}
1134
1135#if USE_MJIT
1136static void
1137setup_mjit_options(const char *s, struct mjit_options *mjit_opt)
1138{
1139 if (*s != '-') return;
1140 const size_t l = strlen(++s);
1141 if (*s == 0) return;
1142 else if (opt_match_noarg(s, l, "warnings")) {
1143 mjit_opt->warnings = 1;
1144 }
1145 else if (opt_match(s, l, "debug")) {
1146 if (*s)
1147 mjit_opt->debug_flags = strdup(s + 1);
1148 else
1149 mjit_opt->debug = 1;
1150 }
1151 else if (opt_match_noarg(s, l, "wait")) {
1152 mjit_opt->wait = 1;
1153 }
1154 else if (opt_match_noarg(s, l, "save-temps")) {
1155 mjit_opt->save_temps = 1;
1156 }
1157 else if (opt_match(s, l, "verbose")) {
1158 mjit_opt->verbose = *s ? atoi(s + 1) : 1;
1159 }
1160 else if (opt_match_arg(s, l, "max-cache")) {
1161 mjit_opt->max_cache_size = atoi(s + 1);
1162 }
1163 else if (opt_match_arg(s, l, "min-calls")) {
1164 mjit_opt->min_calls = atoi(s + 1);
1165 }
1166 else {
1167 rb_raise(rb_eRuntimeError,
1168 "invalid MJIT option `%s' (--help will show valid MJIT options)", s);
1169 }
1170}
1171#endif
1172
1173static long
1174proc_options(long argc, char **argv, ruby_cmdline_options_t *opt, int envopt)
1175{
1176 long n, argc0 = argc;
1177 const char *s;
1178 int warning = opt->warning;
1179
1180 if (argc <= 0 || !argv)
1181 return 0;
1182
1183 for (argc--, argv++; argc > 0; argc--, argv++) {
1184 const char *const arg = argv[0];
1185 if (!arg || arg[0] != '-' || !arg[1])
1186 break;
1187
1188 s = arg + 1;
1189 reswitch:
1190 switch (*s) {
1191 case 'a':
1192 if (envopt) goto noenvopt;
1193 opt->do_split = TRUE;
1194 s++;
1195 goto reswitch;
1196
1197 case 'p':
1198 if (envopt) goto noenvopt;
1199 opt->do_print = TRUE;
1200 /* through */
1201 case 'n':
1202 if (envopt) goto noenvopt;
1203 opt->do_loop = TRUE;
1204 s++;
1205 goto reswitch;
1206
1207 case 'd':
1208 ruby_debug = Qtrue;
1210 s++;
1211 goto reswitch;
1212
1213 case 'y':
1214 if (envopt) goto noenvopt;
1215 opt->dump |= DUMP_BIT(yydebug);
1216 s++;
1217 goto reswitch;
1218
1219 case 'v':
1220 if (opt->verbose) {
1221 s++;
1222 goto reswitch;
1223 }
1224 opt->dump |= DUMP_BIT(version_v);
1225 opt->verbose = 1;
1226 case 'w':
1227 if (!opt->warning) {
1228 warning = 1;
1230 }
1231 FEATURE_SET(opt->warn, RB_WARN_CATEGORY_ALL_BITS);
1232 s++;
1233 goto reswitch;
1234
1235 case 'W':
1236 if (s[1] == ':') {
1237 unsigned int bits = 0;
1238 static const char no_prefix[] = "no-";
1239 int enable = strncmp(s += 2, no_prefix, sizeof(no_prefix)-1) != 0;
1240 if (!enable) s += sizeof(no_prefix)-1;
1241 size_t len = strlen(s);
1242 if (NAME_MATCH_P("deprecated", s, len)) {
1243 bits = 1U << RB_WARN_CATEGORY_DEPRECATED;
1244 }
1245 else if (NAME_MATCH_P("experimental", s, len)) {
1246 bits = 1U << RB_WARN_CATEGORY_EXPERIMENTAL;
1247 }
1248 else {
1249 rb_warn("unknown warning category: `%s'", s);
1250 }
1251 if (bits) FEATURE_SET_TO(opt->warn, bits, enable ? bits : 0);
1252 break;
1253 }
1254 {
1255 size_t numlen;
1256 int v = 2; /* -W as -W2 */
1257
1258 if (*++s) {
1259 v = scan_oct(s, 1, &numlen);
1260 if (numlen == 0)
1261 v = 2;
1262 s += numlen;
1263 }
1264 if (!opt->warning) {
1265 switch (v) {
1266 case 0:
1268 break;
1269 case 1:
1271 break;
1272 default:
1274 break;
1275 }
1276 }
1277 warning = 1;
1278 switch (v) {
1279 case 0:
1280 FEATURE_SET_TO(opt->warn, RB_WARN_CATEGORY_ALL_BITS, 0);
1281 break;
1282 case 1:
1283 FEATURE_SET_TO(opt->warn, 1U << RB_WARN_CATEGORY_DEPRECATED, 0);
1284 break;
1285 default:
1286 FEATURE_SET(opt->warn, RB_WARN_CATEGORY_ALL_BITS);
1287 break;
1288 }
1289 }
1290 goto reswitch;
1291
1292 case 'c':
1293 if (envopt) goto noenvopt;
1294 opt->dump |= DUMP_BIT(syntax);
1295 s++;
1296 goto reswitch;
1297
1298 case 's':
1299 if (envopt) goto noenvopt;
1300 forbid_setid("-s");
1301 if (!opt->sflag) opt->sflag = 1;
1302 s++;
1303 goto reswitch;
1304
1305 case 'h':
1306 if (envopt) goto noenvopt;
1307 opt->dump |= DUMP_BIT(usage);
1308 goto switch_end;
1309
1310 case 'l':
1311 if (envopt) goto noenvopt;
1312 opt->do_line = TRUE;
1314 s++;
1315 goto reswitch;
1316
1317 case 'S':
1318 if (envopt) goto noenvopt;
1319 forbid_setid("-S");
1320 opt->do_search = TRUE;
1321 s++;
1322 goto reswitch;
1323
1324 case 'e':
1325 if (envopt) goto noenvopt;
1326 forbid_setid("-e");
1327 if (!*++s) {
1328 if (!--argc)
1329 rb_raise(rb_eRuntimeError, "no code specified for -e");
1330 s = *++argv;
1331 }
1332 if (!opt->e_script) {
1333 opt->e_script = rb_str_new(0, 0);
1334 if (opt->script == 0)
1335 opt->script = "-e";
1336 }
1337 rb_str_cat2(opt->e_script, s);
1338 rb_str_cat2(opt->e_script, "\n");
1339 break;
1340
1341 case 'r':
1342 forbid_setid("-r");
1343 if (*++s) {
1344 add_modules(&opt->req_list, s);
1345 }
1346 else if (argc > 1) {
1347 add_modules(&opt->req_list, argv[1]);
1348 argc--, argv++;
1349 }
1350 break;
1351
1352 case 'i':
1353 if (envopt) goto noenvopt;
1354 forbid_setid("-i");
1355 ruby_set_inplace_mode(s + 1);
1356 break;
1357
1358 case 'x':
1359 if (envopt) goto noenvopt;
1360 forbid_setid("-x");
1361 opt->xflag = TRUE;
1362 s++;
1363 if (*s && chdir(s) < 0) {
1364 rb_fatal("Can't chdir to %s", s);
1365 }
1366 break;
1367
1368 case 'C':
1369 case 'X':
1370 if (envopt) goto noenvopt;
1371 if (!*++s && (!--argc || !(s = *++argv) || !*s)) {
1372 rb_fatal("Can't chdir");
1373 }
1374 if (chdir(s) < 0) {
1375 rb_fatal("Can't chdir to %s", s);
1376 }
1377 break;
1378
1379 case 'F':
1380 if (envopt) goto noenvopt;
1381 if (*++s) {
1382 rb_fs = rb_reg_new(s, strlen(s), 0);
1383 }
1384 break;
1385
1386 case 'E':
1387 if (!*++s && (!--argc || !(s = *++argv))) {
1388 rb_raise(rb_eRuntimeError, "missing argument for -E");
1389 }
1390 goto encoding;
1391
1392 case 'U':
1393 set_internal_encoding_once(opt, "UTF-8", 0);
1394 ++s;
1395 goto reswitch;
1396
1397 case 'K':
1398 if (*++s) {
1399 const char *enc_name = 0;
1400 switch (*s) {
1401 case 'E': case 'e':
1402 enc_name = "EUC-JP";
1403 break;
1404 case 'S': case 's':
1405 enc_name = "Windows-31J";
1406 break;
1407 case 'U': case 'u':
1408 enc_name = "UTF-8";
1409 break;
1410 case 'N': case 'n': case 'A': case 'a':
1411 enc_name = "ASCII-8BIT";
1412 break;
1413 }
1414 if (enc_name) {
1415 opt->src.enc.name = rb_str_new2(enc_name);
1416 if (!opt->ext.enc.name)
1417 opt->ext.enc.name = opt->src.enc.name;
1418 }
1419 s++;
1420 }
1421 goto reswitch;
1422
1423 case 'I':
1424 forbid_setid("-I");
1425 if (*++s)
1426 ruby_incpush_expand(s);
1427 else if (argc > 1) {
1428 ruby_incpush_expand(argv[1]);
1429 argc--, argv++;
1430 }
1431 break;
1432
1433 case '0':
1434 if (envopt) goto noenvopt;
1435 {
1436 size_t numlen;
1437 int v;
1438 char c;
1439
1440 v = scan_oct(s, 4, &numlen);
1441 s += numlen;
1442 if (v > 0377)
1443 rb_rs = Qnil;
1444 else if (v == 0 && numlen >= 2) {
1445 rb_rs = rb_str_new2("");
1446 }
1447 else {
1448 c = v & 0xff;
1449 rb_rs = rb_str_new(&c, 1);
1450 }
1451 }
1452 goto reswitch;
1453
1454 case '-':
1455 if (!s[1] || (s[1] == '\r' && !s[2])) {
1456 argc--, argv++;
1457 goto switch_end;
1458 }
1459 s++;
1460
1461# define is_option_end(c, allow_hyphen) \
1462 (!(c) || ((allow_hyphen) && (c) == '-') || (c) == '=')
1463# define check_envopt(name, allow_envopt) \
1464 (((allow_envopt) || !envopt) ? (void)0 : \
1465 rb_raise(rb_eRuntimeError, "invalid switch in RUBYOPT: --" name))
1466# define need_argument(name, s, needs_arg, next_arg) \
1467 ((*(s) ? !*++(s) : (next_arg) && (!argc || !((s) = argv[1]) || (--argc, ++argv, 0))) && (needs_arg) ? \
1468 rb_raise(rb_eRuntimeError, "missing argument for --" name) \
1469 : (void)0)
1470# define is_option_with_arg(name, allow_hyphen, allow_envopt) \
1471 is_option_with_optarg(name, allow_hyphen, allow_envopt, Qtrue, Qtrue)
1472# define is_option_with_optarg(name, allow_hyphen, allow_envopt, needs_arg, next_arg) \
1473 (strncmp((name), s, n = sizeof(name) - 1) == 0 && is_option_end(s[n], (allow_hyphen)) ? \
1474 (check_envopt(name, (allow_envopt)), s += n, \
1475 need_argument(name, s, needs_arg, next_arg), 1) : 0)
1476
1477 if (strcmp("copyright", s) == 0) {
1478 if (envopt) goto noenvopt_long;
1479 opt->dump |= DUMP_BIT(copyright);
1480 }
1481 else if (is_option_with_optarg("debug", Qtrue, Qtrue, Qfalse, Qfalse)) {
1482 if (s && *s) {
1483 ruby_each_words(s, debug_option, &opt->features);
1484 }
1485 else {
1486 ruby_debug = Qtrue;
1488 }
1489 }
1490 else if (is_option_with_arg("enable", Qtrue, Qtrue)) {
1491 ruby_each_words(s, enable_option, &opt->features);
1492 }
1493 else if (is_option_with_arg("disable", Qtrue, Qtrue)) {
1494 ruby_each_words(s, disable_option, &opt->features);
1495 }
1496 else if (is_option_with_arg("encoding", Qfalse, Qtrue)) {
1497 char *p;
1498 encoding:
1499 do {
1500# define set_encoding_part(type) \
1501 if (!(p = strchr(s, ':'))) { \
1502 set_##type##_encoding_once(opt, s, 0); \
1503 break; \
1504 } \
1505 else if (p > s) { \
1506 set_##type##_encoding_once(opt, s, p-s); \
1507 }
1508 set_encoding_part(external);
1509 if (!*(s = ++p)) break;
1510 set_encoding_part(internal);
1511 if (!*(s = ++p)) break;
1512#if defined ALLOW_DEFAULT_SOURCE_ENCODING && ALLOW_DEFAULT_SOURCE_ENCODING
1513 set_encoding_part(source);
1514 if (!*(s = ++p)) break;
1515#endif
1516 rb_raise(rb_eRuntimeError, "extra argument for %s: %s",
1517 (arg[1] == '-' ? "--encoding" : "-E"), s);
1518# undef set_encoding_part
1519 } while (0);
1520 }
1521 else if (is_option_with_arg("internal-encoding", Qfalse, Qtrue)) {
1522 set_internal_encoding_once(opt, s, 0);
1523 }
1524 else if (is_option_with_arg("external-encoding", Qfalse, Qtrue)) {
1525 set_external_encoding_once(opt, s, 0);
1526 }
1527#if defined ALLOW_DEFAULT_SOURCE_ENCODING && ALLOW_DEFAULT_SOURCE_ENCODING
1528 else if (is_option_with_arg("source-encoding", Qfalse, Qtrue)) {
1529 set_source_encoding_once(opt, s, 0);
1530 }
1531#endif
1532 else if (strcmp("version", s) == 0) {
1533 if (envopt) goto noenvopt_long;
1534 opt->dump |= DUMP_BIT(version);
1535 }
1536 else if (strcmp("verbose", s) == 0) {
1537 opt->verbose = 1;
1539 }
1540 else if (strcmp("jit", s) == 0) {
1541#if !USE_MJIT
1542 rb_warn("Ruby was built without JIT support");
1543#elif defined(MJIT_FORCE_ENABLE) || !YJIT_SUPPORTED_P
1544 FEATURE_SET(opt->features, FEATURE_BIT(mjit));
1545#else
1546 FEATURE_SET(opt->features, FEATURE_BIT(yjit));
1547#endif
1548 }
1549 else if (strncmp("mjit", s, 4) == 0) {
1550#if USE_MJIT
1551 FEATURE_SET(opt->features, FEATURE_BIT(mjit));
1552 setup_mjit_options(s + 4, &opt->mjit);
1553#else
1554 rb_warn("MJIT support is disabled.");
1555#endif
1556 }
1557 else if (strcmp("yjit", s) == 0 || setup_yjit_options(s, &opt->yjit)) {
1558#if USE_MJIT
1559 FEATURE_SET(opt->features, FEATURE_BIT(yjit));
1560#else
1561 rb_warn("Ruby was built without JIT support");
1562#endif
1563 }
1564 else if (strcmp("yydebug", s) == 0) {
1565 if (envopt) goto noenvopt_long;
1566 opt->dump |= DUMP_BIT(yydebug);
1567 }
1568 else if (is_option_with_arg("dump", Qfalse, Qfalse)) {
1569 ruby_each_words(s, dump_option, &opt->dump);
1570 }
1571 else if (strcmp("help", s) == 0) {
1572 if (envopt) goto noenvopt_long;
1573 opt->dump |= DUMP_BIT(help);
1574 goto switch_end;
1575 }
1576 else if (is_option_with_arg("backtrace-limit", Qfalse, Qfalse)) {
1577 char *e;
1578 long n = strtol(s, &e, 10);
1579 if (errno == ERANGE || n < 0 || *e) rb_raise(rb_eRuntimeError, "wrong limit for backtrace length");
1580 rb_backtrace_length_limit = n;
1581 }
1582 else {
1583 rb_raise(rb_eRuntimeError,
1584 "invalid option --%s (-h will show valid options)", s);
1585 }
1586 break;
1587
1588 case '\r':
1589 if (!s[1])
1590 break;
1591
1592 default:
1593 {
1594 rb_raise(rb_eRuntimeError,
1595 "invalid option -%c (-h will show valid options)",
1596 (int)(unsigned char)*s);
1597 }
1598 goto switch_end;
1599
1600 noenvopt:
1601 /* "EIdvwWrKU" only */
1602 rb_raise(rb_eRuntimeError, "invalid switch in RUBYOPT: -%c", *s);
1603 break;
1604
1605 noenvopt_long:
1606 rb_raise(rb_eRuntimeError, "invalid switch in RUBYOPT: --%s", s);
1607 break;
1608
1609 case 0:
1610 break;
1611# undef is_option_end
1612# undef check_envopt
1613# undef need_argument
1614# undef is_option_with_arg
1615# undef is_option_with_optarg
1616 }
1617 }
1618
1619 switch_end:
1620 if (warning) opt->warning = warning;
1621 return argc0 - argc;
1622}
1623
1624void Init_builtin_features(void);
1625
1626static void
1627ruby_init_prelude(void)
1628{
1629 Init_builtin_features();
1630 rb_const_remove(rb_cObject, rb_intern_const("TMP_RUBY_PREFIX"));
1631}
1632
1633void rb_call_builtin_inits(void);
1634
1635static void
1636ruby_opt_init(ruby_cmdline_options_t *opt)
1637{
1638 if (opt->dump & dump_exit_bits) return;
1639
1640 if (opt->features.set & FEATURE_BIT(gems)) {
1641 rb_define_module("Gem");
1642 if (opt->features.set & FEATURE_BIT(error_highlight)) {
1643 rb_define_module("ErrorHighlight");
1644 }
1645 if (opt->features.set & FEATURE_BIT(did_you_mean)) {
1646 rb_define_module("DidYouMean");
1647 }
1648 }
1649
1650 rb_warning_category_update(opt->warn.mask, opt->warn.set);
1651
1652 Init_ext(); /* load statically linked extensions before rubygems */
1653 rb_call_builtin_inits();
1654 ruby_init_prelude();
1655
1656 ruby_set_script_name(opt->script_name);
1657 require_libraries(&opt->req_list);
1658}
1659
1660static int
1661opt_enc_index(VALUE enc_name)
1662{
1663 const char *s = RSTRING_PTR(enc_name);
1664 int i = rb_enc_find_index(s);
1665
1666 if (i < 0) {
1667 rb_raise(rb_eRuntimeError, "unknown encoding name - %s", s);
1668 }
1669 else if (rb_enc_dummy_p(rb_enc_from_index(i))) {
1670 rb_raise(rb_eRuntimeError, "dummy encoding is not acceptable - %s ", s);
1671 }
1672 return i;
1673}
1674
1675#define rb_progname (GET_VM()->progname)
1676#define rb_orig_progname (GET_VM()->orig_progname)
1678VALUE rb_e_script;
1679
1680static VALUE
1681false_value(ID _x, VALUE *_y)
1682{
1683 return Qfalse;
1684}
1685
1686static VALUE
1687true_value(ID _x, VALUE *_y)
1688{
1689 return Qtrue;
1690}
1691
1692#define rb_define_readonly_boolean(name, val) \
1693 rb_define_virtual_variable((name), (val) ? true_value : false_value, 0)
1694
1695static VALUE
1696uscore_get(void)
1697{
1698 VALUE line;
1699
1700 line = rb_lastline_get();
1701 if (!RB_TYPE_P(line, T_STRING)) {
1702 rb_raise(rb_eTypeError, "$_ value need to be String (%s given)",
1703 NIL_P(line) ? "nil" : rb_obj_classname(line));
1704 }
1705 return line;
1706}
1707
1708/*
1709 * call-seq:
1710 * sub(pattern, replacement) -> $_
1711 * sub(pattern) {|...| block } -> $_
1712 *
1713 * Equivalent to <code>$_.sub(<i>args</i>)</code>, except that
1714 * <code>$_</code> will be updated if substitution occurs.
1715 * Available only when -p/-n command line option specified.
1716 */
1717
1718static VALUE
1719rb_f_sub(int argc, VALUE *argv, VALUE _)
1720{
1721 VALUE str = rb_funcall_passing_block(uscore_get(), rb_intern("sub"), argc, argv);
1722 rb_lastline_set(str);
1723 return str;
1724}
1725
1726/*
1727 * call-seq:
1728 * gsub(pattern, replacement) -> $_
1729 * gsub(pattern) {|...| block } -> $_
1730 *
1731 * Equivalent to <code>$_.gsub...</code>, except that <code>$_</code>
1732 * will be updated if substitution occurs.
1733 * Available only when -p/-n command line option specified.
1734 *
1735 */
1736
1737static VALUE
1738rb_f_gsub(int argc, VALUE *argv, VALUE _)
1739{
1740 VALUE str = rb_funcall_passing_block(uscore_get(), rb_intern("gsub"), argc, argv);
1741 rb_lastline_set(str);
1742 return str;
1743}
1744
1745/*
1746 * call-seq:
1747 * chop -> $_
1748 *
1749 * Equivalent to <code>($_.dup).chop!</code>, except <code>nil</code>
1750 * is never returned. See String#chop!.
1751 * Available only when -p/-n command line option specified.
1752 *
1753 */
1754
1755static VALUE
1756rb_f_chop(VALUE _)
1757{
1758 VALUE str = rb_funcall_passing_block(uscore_get(), rb_intern("chop"), 0, 0);
1759 rb_lastline_set(str);
1760 return str;
1761}
1762
1763
1764/*
1765 * call-seq:
1766 * chomp -> $_
1767 * chomp(string) -> $_
1768 *
1769 * Equivalent to <code>$_ = $_.chomp(<em>string</em>)</code>. See
1770 * String#chomp.
1771 * Available only when -p/-n command line option specified.
1772 *
1773 */
1774
1775static VALUE
1776rb_f_chomp(int argc, VALUE *argv, VALUE _)
1777{
1778 VALUE str = rb_funcall_passing_block(uscore_get(), rb_intern("chomp"), argc, argv);
1779 rb_lastline_set(str);
1780 return str;
1781}
1782
1783static void
1784setup_pager_env(void)
1785{
1786 if (!getenv("LESS")) ruby_setenv("LESS", "-R"); // Output "raw" control characters.
1787}
1788
1789#ifdef _WIN32
1790static int
1791tty_enabled(void)
1792{
1793 HANDLE h = GetStdHandle(STD_OUTPUT_HANDLE);
1794 DWORD m;
1795 if (!GetConsoleMode(h, &m)) return 0;
1796# ifndef ENABLE_VIRTUAL_TERMINAL_PROCESSING
1797# define ENABLE_VIRTUAL_TERMINAL_PROCESSING 0x4
1798# endif
1799 if (!(m & ENABLE_VIRTUAL_TERMINAL_PROCESSING)) return 0;
1800 return 1;
1801}
1802#elif !defined(HAVE_WORKING_FORK)
1803# define tty_enabled() 0
1804#endif
1805
1806static VALUE
1807copy_str(VALUE str, rb_encoding *enc, bool intern)
1808{
1809 if (!intern) {
1810 if (rb_enc_str_coderange_scan(str, enc) == ENC_CODERANGE_BROKEN)
1811 return 0;
1812 return rb_enc_associate(rb_str_dup(str), enc);
1813 }
1814 return rb_enc_interned_str(RSTRING_PTR(str), RSTRING_LEN(str), enc);
1815}
1816
1817static VALUE
1818process_options(int argc, char **argv, ruby_cmdline_options_t *opt)
1819{
1820 rb_ast_t *ast = 0;
1821 VALUE parser;
1822 VALUE script_name;
1823 const rb_iseq_t *iseq;
1824 rb_encoding *enc, *lenc;
1825#if UTF8_PATH
1826 rb_encoding *ienc = 0;
1827 rb_encoding *const uenc = rb_utf8_encoding();
1828#endif
1829 const char *s;
1830 char fbuf[MAXPATHLEN];
1831 int i = (int)proc_options(argc, argv, opt, 0);
1832 unsigned int dump = opt->dump & dump_exit_bits;
1833 rb_vm_t *vm = GET_VM();
1834 const long loaded_before_enc = RARRAY_LEN(vm->loaded_features);
1835
1836 if (opt->dump & (DUMP_BIT(usage)|DUMP_BIT(help))) {
1837 int tty = isatty(1);
1838 const char *const progname =
1839 (argc > 0 && argv && argv[0] ? argv[0] :
1840 origarg.argc > 0 && origarg.argv && origarg.argv[0] ? origarg.argv[0] :
1841 ruby_engine);
1842 int columns = 0;
1843 if ((opt->dump & DUMP_BIT(help)) && tty) {
1844 const char *pager_env = getenv("RUBY_PAGER");
1845 if (!pager_env) pager_env = getenv("PAGER");
1846 if (pager_env && *pager_env && isatty(0)) {
1847 const char *columns_env = getenv("COLUMNS");
1848 if (columns_env) columns = atoi(columns_env);
1849 VALUE pager = rb_str_new_cstr(pager_env);
1850#ifdef HAVE_WORKING_FORK
1851 int fds[2];
1852 if (rb_pipe(fds) == 0) {
1853 rb_pid_t pid = rb_fork();
1854 if (pid > 0) {
1855 /* exec PAGER with reading from child */
1856 dup2(fds[0], 0);
1857 }
1858 else if (pid == 0) {
1859 /* send the help message to the parent PAGER */
1860 dup2(fds[1], 1);
1861 dup2(fds[1], 2);
1862 }
1863 close(fds[0]);
1864 close(fds[1]);
1865 if (pid > 0) {
1866 setup_pager_env();
1867 rb_f_exec(1, &pager);
1868 kill(SIGTERM, pid);
1869 rb_waitpid(pid, 0, 0);
1870 }
1871 }
1872#else
1873 setup_pager_env();
1874 VALUE port = rb_io_popen(pager, rb_str_new_lit("w"), Qnil, Qnil);
1875 if (!NIL_P(port)) {
1876 int oldout = dup(1);
1877 int olderr = dup(2);
1878 int fd = RFILE(port)->fptr->fd;
1879 tty = tty_enabled();
1880 dup2(fd, 1);
1881 dup2(fd, 2);
1882 usage(progname, 1, tty, columns);
1883 fflush(stdout);
1884 dup2(oldout, 1);
1885 dup2(olderr, 2);
1886 rb_io_close(port);
1887 return Qtrue;
1888 }
1889#endif
1890 }
1891 }
1892 usage(progname, (opt->dump & DUMP_BIT(help)), tty, columns);
1893 return Qtrue;
1894 }
1895
1896 argc -= i;
1897 argv += i;
1898
1899 if ((opt->features.set & FEATURE_BIT(rubyopt)) && (s = getenv("RUBYOPT"))) {
1900 VALUE src_enc_name = opt->src.enc.name;
1901 VALUE ext_enc_name = opt->ext.enc.name;
1902 VALUE int_enc_name = opt->intern.enc.name;
1903 ruby_features_t feat = opt->features;
1904 ruby_features_t warn = opt->warn;
1905
1906 opt->src.enc.name = opt->ext.enc.name = opt->intern.enc.name = 0;
1907 moreswitches(s, opt, 1);
1908 if (src_enc_name)
1909 opt->src.enc.name = src_enc_name;
1910 if (ext_enc_name)
1911 opt->ext.enc.name = ext_enc_name;
1912 if (int_enc_name)
1913 opt->intern.enc.name = int_enc_name;
1914 FEATURE_SET_RESTORE(opt->features, feat);
1915 FEATURE_SET_RESTORE(opt->warn, warn);
1916 }
1917
1918 if (opt->src.enc.name)
1919 /* cannot set deprecated category, as enabling deprecation warnings based on flags
1920 * has not happened yet.
1921 */
1922 rb_warning("-K is specified; it is for 1.8 compatibility and may cause odd behavior");
1923
1924#if USE_MJIT
1925 if (opt->features.set & FEATURE_BIT(mjit)) {
1926 opt->mjit.on = TRUE; /* set mjit.on for ruby_show_version() API and check to call mjit_init() */
1927 }
1928#endif
1929 if (opt->features.set & FEATURE_BIT(yjit)) {
1930#if USE_MJIT
1931 if (opt->mjit.on) {
1932 rb_warn("MJIT and YJIT cannot both be enabled at the same time. Exiting");
1933 exit(1);
1934 }
1935#endif
1936 rb_yjit_init(&opt->yjit);
1937 }
1938 if (opt->dump & (DUMP_BIT(version) | DUMP_BIT(version_v))) {
1939#if USE_MJIT
1940 mjit_opts.on = opt->mjit.on; /* used by ruby_show_version(). mjit_init() still can't be called here. */
1941#endif
1943 if (opt->dump & DUMP_BIT(version)) return Qtrue;
1944 }
1945 if (opt->dump & DUMP_BIT(copyright)) {
1947 return Qtrue;
1948 }
1949
1950 if (!opt->e_script) {
1951 if (argc <= 0) { /* no more args */
1952 if (opt->verbose)
1953 return Qtrue;
1954 opt->script = "-";
1955 }
1956 else {
1957 opt->script = argv[0];
1958 if (!opt->script || opt->script[0] == '\0') {
1959 opt->script = "-";
1960 }
1961 else if (opt->do_search) {
1962 const char *path = getenv("RUBYPATH");
1963
1964 opt->script = 0;
1965 if (path) {
1966 opt->script = dln_find_file_r(argv[0], path, fbuf, sizeof(fbuf));
1967 }
1968 if (!opt->script) {
1969 opt->script = dln_find_file_r(argv[0], getenv(PATH_ENV), fbuf, sizeof(fbuf));
1970 }
1971 if (!opt->script)
1972 opt->script = argv[0];
1973 }
1974 argc--;
1975 argv++;
1976 }
1977 if (opt->script[0] == '-' && !opt->script[1]) {
1978 forbid_setid("program input from stdin");
1979 }
1980 }
1981
1982 opt->script_name = rb_str_new_cstr(opt->script);
1983 opt->script = RSTRING_PTR(opt->script_name);
1984
1985#ifdef _WIN32
1986 translit_char_bin(RSTRING_PTR(opt->script_name), '\\', '/');
1987#elif defined DOSISH
1988 translit_char(RSTRING_PTR(opt->script_name), '\\', '/');
1989#endif
1990
1991 ruby_gc_set_params();
1993
1994#if USE_MJIT
1995 if (opt->mjit.on)
1996 /* Using TMP_RUBY_PREFIX created by ruby_init_loadpath(). */
1997 mjit_init(&opt->mjit);
1998#endif
1999
2000 Init_ruby_description();
2001 Init_enc();
2002 lenc = rb_locale_encoding();
2003 rb_enc_associate(rb_progname, lenc);
2004 rb_obj_freeze(rb_progname);
2005 parser = rb_parser_new();
2006 if (opt->dump & DUMP_BIT(yydebug)) {
2007 rb_parser_set_yydebug(parser, Qtrue);
2008 }
2009 if (opt->ext.enc.name != 0) {
2010 opt->ext.enc.index = opt_enc_index(opt->ext.enc.name);
2011 }
2012 if (opt->intern.enc.name != 0) {
2013 opt->intern.enc.index = opt_enc_index(opt->intern.enc.name);
2014 }
2015 if (opt->src.enc.name != 0) {
2016 opt->src.enc.index = opt_enc_index(opt->src.enc.name);
2017 src_encoding_index = opt->src.enc.index;
2018 }
2019 if (opt->ext.enc.index >= 0) {
2020 enc = rb_enc_from_index(opt->ext.enc.index);
2021 }
2022 else {
2023 enc = IF_UTF8_PATH(uenc, lenc);
2024 }
2026 if (opt->intern.enc.index >= 0) {
2027 enc = rb_enc_from_index(opt->intern.enc.index);
2029 opt->intern.enc.index = -1;
2030#if UTF8_PATH
2031 ienc = enc;
2032#endif
2033 }
2034 script_name = opt->script_name;
2035 rb_enc_associate(opt->script_name, IF_UTF8_PATH(uenc, lenc));
2036#if UTF8_PATH
2037 if (uenc != lenc) {
2038 opt->script_name = str_conv_enc(opt->script_name, uenc, lenc);
2039 opt->script = RSTRING_PTR(opt->script_name);
2040 }
2041#endif
2042 rb_obj_freeze(opt->script_name);
2043 if (IF_UTF8_PATH(uenc != lenc, 1)) {
2044 long i;
2045 VALUE load_path = vm->load_path;
2046 const ID id_initial_load_path_mark = INITIAL_LOAD_PATH_MARK;
2047 int modifiable = FALSE;
2048
2049 rb_get_expanded_load_path();
2050 for (i = 0; i < RARRAY_LEN(load_path); ++i) {
2051 VALUE path = RARRAY_AREF(load_path, i);
2052 int mark = rb_attr_get(path, id_initial_load_path_mark) == path;
2053#if UTF8_PATH
2054 VALUE newpath = rb_str_conv_enc(path, uenc, lenc);
2055 if (newpath == path) continue;
2056 path = newpath;
2057#else
2058 if (!(path = copy_str(path, lenc, !mark))) continue;
2059#endif
2060 if (mark) rb_ivar_set(path, id_initial_load_path_mark, path);
2061 if (!modifiable) {
2062 rb_ary_modify(load_path);
2063 modifiable = TRUE;
2064 }
2065 RARRAY_ASET(load_path, i, path);
2066 }
2067 if (modifiable) {
2068 rb_ary_replace(vm->load_path_snapshot, load_path);
2069 }
2070 }
2071 {
2072 VALUE loaded_features = vm->loaded_features;
2073 bool modified = false;
2074 for (long i = loaded_before_enc; i < RARRAY_LEN(loaded_features); ++i) {
2075 VALUE path = RARRAY_AREF(loaded_features, i);
2076 if (!(path = copy_str(path, IF_UTF8_PATH(uenc, lenc), true))) continue;
2077 modified = true;
2078 RARRAY_ASET(loaded_features, i, path);
2079 }
2080 if (modified) {
2081 rb_ary_replace(vm->loaded_features_snapshot, loaded_features);
2082 }
2083 }
2084
2085 if (opt->features.mask & COMPILATION_FEATURES) {
2086 VALUE option = rb_hash_new();
2087#define SET_COMPILE_OPTION(h, o, name) \
2088 rb_hash_aset((h), ID2SYM(rb_intern_const(#name)), \
2089 RBOOL(FEATURE_SET_P(o->features, FEATURE_BIT(name))));
2090 SET_COMPILE_OPTION(option, opt, frozen_string_literal);
2091 SET_COMPILE_OPTION(option, opt, debug_frozen_string_literal);
2092 rb_funcallv(rb_cISeq, rb_intern_const("compile_option="), 1, &option);
2093#undef SET_COMPILE_OPTION
2094 }
2095 ruby_set_argv(argc, argv);
2096 process_sflag(&opt->sflag);
2097
2098 rb_parser_set_context(parser, 0, TRUE);
2099
2100 if (opt->e_script) {
2101 VALUE progname = rb_progname;
2102 rb_encoding *eenc;
2103 if (opt->src.enc.index >= 0) {
2104 eenc = rb_enc_from_index(opt->src.enc.index);
2105 }
2106 else {
2107 eenc = lenc;
2108#if UTF8_PATH
2109 if (ienc) eenc = ienc;
2110#endif
2111 }
2112#if UTF8_PATH
2113 if (eenc != uenc) {
2114 opt->e_script = str_conv_enc(opt->e_script, uenc, eenc);
2115 }
2116#endif
2117 rb_enc_associate(opt->e_script, eenc);
2118 ruby_opt_init(opt);
2119 ruby_set_script_name(progname);
2120 rb_parser_set_options(parser, opt->do_print, opt->do_loop,
2121 opt->do_line, opt->do_split);
2122 ast = rb_parser_compile_string(parser, opt->script, opt->e_script, 1);
2123 }
2124 else {
2125 VALUE f;
2126 f = open_load_file(script_name, &opt->xflag);
2127 ast = load_file(parser, opt->script_name, f, 1, opt);
2128 }
2129 ruby_set_script_name(opt->script_name);
2130 if (dump & DUMP_BIT(yydebug)) {
2131 dump &= ~DUMP_BIT(yydebug);
2132 if (!dump) return Qtrue;
2133 }
2134
2135 if (opt->ext.enc.index >= 0) {
2136 enc = rb_enc_from_index(opt->ext.enc.index);
2137 }
2138 else {
2139 enc = IF_UTF8_PATH(uenc, lenc);
2140 }
2142 if (opt->intern.enc.index >= 0) {
2143 /* Set in the shebang line */
2144 enc = rb_enc_from_index(opt->intern.enc.index);
2146 }
2147 else if (!rb_default_internal_encoding())
2148 /* Freeze default_internal */
2150 rb_stdio_set_default_encoding();
2151
2152 if (!ast->body.root) {
2153 rb_ast_dispose(ast);
2154 return Qfalse;
2155 }
2156
2157 process_sflag(&opt->sflag);
2158 opt->xflag = 0;
2159
2160 if (dump & DUMP_BIT(syntax)) {
2161 printf("Syntax OK\n");
2162 dump &= ~DUMP_BIT(syntax);
2163 if (!dump) return Qtrue;
2164 }
2165
2166 if (opt->do_loop) {
2167 rb_define_global_function("sub", rb_f_sub, -1);
2168 rb_define_global_function("gsub", rb_f_gsub, -1);
2169 rb_define_global_function("chop", rb_f_chop, 0);
2170 rb_define_global_function("chomp", rb_f_chomp, -1);
2171 }
2172
2173 if (dump & (DUMP_BIT(parsetree)|DUMP_BIT(parsetree_with_comment))) {
2174 rb_io_write(rb_stdout, rb_parser_dump_tree(ast->body.root, dump & DUMP_BIT(parsetree_with_comment)));
2176 dump &= ~DUMP_BIT(parsetree)&~DUMP_BIT(parsetree_with_comment);
2177 if (!dump) {
2178 rb_ast_dispose(ast);
2179 return Qtrue;
2180 }
2181 }
2182
2183 {
2184 VALUE path = Qnil;
2185 if (!opt->e_script && strcmp(opt->script, "-")) {
2186 path = rb_realpath_internal(Qnil, script_name, 1);
2187#if UTF8_PATH
2188 if (uenc != lenc) {
2189 path = str_conv_enc(path, uenc, lenc);
2190 }
2191#endif
2192 if (!ENCODING_GET(path)) { /* ASCII-8BIT */
2193 rb_enc_copy(path, opt->script_name);
2194 }
2195 }
2196
2197 rb_binding_t *toplevel_binding;
2198 GetBindingPtr(rb_const_get(rb_cObject, rb_intern("TOPLEVEL_BINDING")),
2199 toplevel_binding);
2200 const struct rb_block *base_block = toplevel_context(toplevel_binding);
2201 iseq = rb_iseq_new_main(&ast->body, opt->script_name, path, vm_block_iseq(base_block), !(dump & DUMP_BIT(insns_without_opt)));
2202 rb_ast_dispose(ast);
2203 }
2204
2205 if (dump & (DUMP_BIT(insns) | DUMP_BIT(insns_without_opt))) {
2206 rb_io_write(rb_stdout, rb_iseq_disasm((const rb_iseq_t *)iseq));
2208 dump &= ~DUMP_BIT(insns);
2209 if (!dump) return Qtrue;
2210 }
2211 if (opt->dump & dump_exit_bits) return Qtrue;
2212
2213 rb_define_readonly_boolean("$-p", opt->do_print);
2214 rb_define_readonly_boolean("$-l", opt->do_line);
2215 rb_define_readonly_boolean("$-a", opt->do_split);
2216
2217 rb_gvar_ractor_local("$-p");
2218 rb_gvar_ractor_local("$-l");
2219 rb_gvar_ractor_local("$-a");
2220
2221 if ((rb_e_script = opt->e_script) != 0) {
2222 rb_str_freeze(rb_e_script);
2223 rb_gc_register_mark_object(opt->e_script);
2224 }
2225
2226 {
2227 rb_execution_context_t *ec = GET_EC();
2228
2229 if (opt->e_script) {
2230 /* -e */
2231 rb_exec_event_hook_script_compiled(ec, iseq, opt->e_script);
2232 }
2233 else {
2234 /* file */
2235 rb_exec_event_hook_script_compiled(ec, iseq, Qnil);
2236 }
2237 }
2238 return (VALUE)iseq;
2239}
2240
2241#ifndef DOSISH
2242static void
2243warn_cr_in_shebang(const char *str, long len)
2244{
2245 if (str[len-1] == '\n' && str[len-2] == '\r') {
2246 rb_warn("shebang line ending with \\r may cause problems");
2247 }
2248}
2249#else
2250#define warn_cr_in_shebang(str, len) (void)0
2251#endif
2252
2254 VALUE parser;
2255 VALUE fname;
2256 int script;
2258 VALUE f;
2259};
2260
2261static VALUE
2262load_file_internal(VALUE argp_v)
2263{
2264 struct load_file_arg *argp = (struct load_file_arg *)argp_v;
2265 VALUE parser = argp->parser;
2266 VALUE orig_fname = argp->fname;
2267 int script = argp->script;
2268 ruby_cmdline_options_t *opt = argp->opt;
2269 VALUE f = argp->f;
2270 int line_start = 1;
2271 rb_ast_t *ast = 0;
2272 rb_encoding *enc;
2273 ID set_encoding;
2274
2275 CONST_ID(set_encoding, "set_encoding");
2276 if (script) {
2277 VALUE c = 1; /* something not nil */
2278 VALUE line;
2279 char *p, *str;
2280 long len;
2281 int no_src_enc = !opt->src.enc.name;
2282 int no_ext_enc = !opt->ext.enc.name;
2283 int no_int_enc = !opt->intern.enc.name;
2284
2285 enc = rb_ascii8bit_encoding();
2286 rb_funcall(f, set_encoding, 1, rb_enc_from_encoding(enc));
2287
2288 if (opt->xflag) {
2289 line_start--;
2290 search_shebang:
2291 while (!NIL_P(line = rb_io_gets(f))) {
2292 line_start++;
2293 RSTRING_GETMEM(line, str, len);
2294 if (len > 2 && str[0] == '#' && str[1] == '!') {
2295 if (line_start == 1) warn_cr_in_shebang(str, len);
2296 if ((p = strstr(str+2, ruby_engine)) != 0) {
2297 goto start_read;
2298 }
2299 }
2300 }
2301 rb_loaderror("no Ruby script found in input");
2302 }
2303
2304 c = rb_io_getbyte(f);
2305 if (c == INT2FIX('#')) {
2306 c = rb_io_getbyte(f);
2307 if (c == INT2FIX('!') && !NIL_P(line = rb_io_gets(f))) {
2308 RSTRING_GETMEM(line, str, len);
2309 warn_cr_in_shebang(str, len);
2310 if ((p = strstr(str, ruby_engine)) == 0) {
2311 /* not ruby script, assume -x flag */
2312 goto search_shebang;
2313 }
2314
2315 start_read:
2316 str += len - 1;
2317 if (*str == '\n') *str-- = '\0';
2318 if (*str == '\r') *str-- = '\0';
2319 /* ruby_engine should not contain a space */
2320 if ((p = strstr(p, " -")) != 0) {
2321 opt->warning = 0;
2322 moreswitches(p + 1, opt, 0);
2323 }
2324
2325 /* push back shebang for pragma may exist in next line */
2326 rb_io_ungetbyte(f, rb_str_new2("!\n"));
2327 }
2328 else if (!NIL_P(c)) {
2329 rb_io_ungetbyte(f, c);
2330 }
2331 rb_io_ungetbyte(f, INT2FIX('#'));
2332 if (no_src_enc && opt->src.enc.name) {
2333 opt->src.enc.index = opt_enc_index(opt->src.enc.name);
2334 src_encoding_index = opt->src.enc.index;
2335 }
2336 if (no_ext_enc && opt->ext.enc.name) {
2337 opt->ext.enc.index = opt_enc_index(opt->ext.enc.name);
2338 }
2339 if (no_int_enc && opt->intern.enc.name) {
2340 opt->intern.enc.index = opt_enc_index(opt->intern.enc.name);
2341 }
2342 }
2343 else if (!NIL_P(c)) {
2344 rb_io_ungetbyte(f, c);
2345 }
2346 if (NIL_P(c)) {
2347 argp->f = f = Qnil;
2348 }
2349 ruby_opt_init(opt);
2350 }
2351 if (opt->src.enc.index >= 0) {
2352 enc = rb_enc_from_index(opt->src.enc.index);
2353 }
2354 else if (f == rb_stdin) {
2355 enc = rb_locale_encoding();
2356 }
2357 else {
2358 enc = rb_utf8_encoding();
2359 }
2360 rb_parser_set_options(parser, opt->do_print, opt->do_loop,
2361 opt->do_line, opt->do_split);
2362 if (NIL_P(f)) {
2363 f = rb_str_new(0, 0);
2364 rb_enc_associate(f, enc);
2365 return (VALUE)rb_parser_compile_string_path(parser, orig_fname, f, line_start);
2366 }
2367 rb_funcall(f, set_encoding, 2, rb_enc_from_encoding(enc), rb_str_new_cstr("-"));
2368 ast = rb_parser_compile_file_path(parser, orig_fname, f, line_start);
2369 rb_funcall(f, set_encoding, 1, rb_parser_encoding(parser));
2370 if (script && rb_parser_end_seen_p(parser)) {
2371 /*
2372 * DATA is a File that contains the data section of the executed file.
2373 * To create a data section use <tt>__END__</tt>:
2374 *
2375 * $ cat t.rb
2376 * puts DATA.gets
2377 * __END__
2378 * hello world!
2379 *
2380 * $ ruby t.rb
2381 * hello world!
2382 */
2383 rb_define_global_const("DATA", f);
2384 argp->f = Qnil;
2385 }
2386 return (VALUE)ast;
2387}
2388
2389/* disabling O_NONBLOCK, and returns 0 on success, otherwise errno */
2390static inline int
2391disable_nonblock(int fd)
2392{
2393#if defined(HAVE_FCNTL) && defined(F_SETFL)
2394 if (fcntl(fd, F_SETFL, 0) < 0) {
2395 const int e = errno;
2396 ASSUME(e != 0);
2397# if defined ENOTSUP
2398 if (e == ENOTSUP) return 0;
2399# endif
2400# if defined B_UNSUPPORTED
2401 if (e == B_UNSUPPORTED) return 0;
2402# endif
2403 return e;
2404 }
2405#endif
2406 return 0;
2407}
2408
2409static VALUE
2410open_load_file(VALUE fname_v, int *xflag)
2411{
2412 const char *fname = (fname_v = rb_str_encode_ospath(fname_v),
2413 StringValueCStr(fname_v));
2414 long flen = RSTRING_LEN(fname_v);
2415 VALUE f;
2416 int e;
2417
2418 if (flen == 1 && fname[0] == '-') {
2419 f = rb_stdin;
2420 }
2421 else {
2422 int fd;
2423 /* open(2) may block if fname is point to FIFO and it's empty. Let's
2424 use O_NONBLOCK. */
2425#if defined O_NONBLOCK && HAVE_FCNTL && !(O_NONBLOCK & O_ACCMODE)
2426 /* TODO: fix conflicting O_NONBLOCK in ruby/win32.h */
2427# define MODE_TO_LOAD (O_RDONLY | O_NONBLOCK)
2428#elif defined O_NDELAY && HAVE_FCNTL && !(O_NDELAY & O_ACCMODE)
2429# define MODE_TO_LOAD (O_RDONLY | O_NDELAY)
2430#else
2431# define MODE_TO_LOAD (O_RDONLY)
2432#endif
2433 int mode = MODE_TO_LOAD;
2434#if defined DOSISH || defined __CYGWIN__
2435# define isdirsep(x) ((x) == '/' || (x) == '\\')
2436 {
2437 static const char exeext[] = ".exe";
2438 enum {extlen = sizeof(exeext)-1};
2439 if (flen > extlen && !isdirsep(fname[flen-extlen-1]) &&
2440 STRNCASECMP(fname+flen-extlen, exeext, extlen) == 0) {
2441 mode |= O_BINARY;
2442 *xflag = 1;
2443 }
2444 }
2445#endif
2446
2447 if ((fd = rb_cloexec_open(fname, mode, 0)) < 0) {
2448 e = errno;
2449 if (!rb_gc_for_fd(e)) {
2450 rb_load_fail(fname_v, strerror(e));
2451 }
2452 if ((fd = rb_cloexec_open(fname, mode, 0)) < 0) {
2453 rb_load_fail(fname_v, strerror(errno));
2454 }
2455 }
2456 rb_update_max_fd(fd);
2457
2458 if (MODE_TO_LOAD != O_RDONLY && (e = disable_nonblock(fd)) != 0) {
2459 (void)close(fd);
2460 rb_load_fail(fname_v, strerror(e));
2461 }
2462
2463 e = ruby_is_fd_loadable(fd);
2464 if (!e) {
2465 e = errno;
2466 (void)close(fd);
2467 rb_load_fail(fname_v, strerror(e));
2468 }
2469
2470 f = rb_io_fdopen(fd, mode, fname);
2471 if (e < 0) {
2472 /*
2473 We need to wait if FIFO is empty. It's FIFO's semantics.
2474 rb_thread_wait_fd() release GVL. So, it's safe.
2475 */
2477 }
2478 }
2479 return f;
2480}
2481
2482static VALUE
2483restore_load_file(VALUE arg)
2484{
2485 struct load_file_arg *argp = (struct load_file_arg *)arg;
2486 VALUE f = argp->f;
2487
2488 if (!NIL_P(f) && f != rb_stdin) {
2489 rb_io_close(f);
2490 }
2491 return Qnil;
2492}
2493
2494static rb_ast_t *
2495load_file(VALUE parser, VALUE fname, VALUE f, int script, ruby_cmdline_options_t *opt)
2496{
2497 struct load_file_arg arg;
2498 arg.parser = parser;
2499 arg.fname = fname;
2500 arg.script = script;
2501 arg.opt = opt;
2502 arg.f = f;
2503 return (rb_ast_t *)rb_ensure(load_file_internal, (VALUE)&arg,
2504 restore_load_file, (VALUE)&arg);
2505}
2506
2507void *
2508rb_load_file(const char *fname)
2509{
2510 VALUE fname_v = rb_str_new_cstr(fname);
2511 return rb_load_file_str(fname_v);
2512}
2513
2514void *
2515rb_load_file_str(VALUE fname_v)
2516{
2517 return rb_parser_load_file(rb_parser_new(), fname_v);
2518}
2519
2520void *
2521rb_parser_load_file(VALUE parser, VALUE fname_v)
2522{
2524 VALUE f = open_load_file(fname_v, &cmdline_options_init(&opt)->xflag);
2525 return load_file(parser, fname_v, f, 0, &opt);
2526}
2527
2528/*
2529 * call-seq:
2530 * Process.argv0 -> frozen_string
2531 *
2532 * Returns the name of the script being executed. The value is not
2533 * affected by assigning a new value to $0.
2534 *
2535 * This method first appeared in Ruby 2.1 to serve as a global
2536 * variable free means to get the script name.
2537 */
2538
2539static VALUE
2540proc_argv0(VALUE process)
2541{
2542 return rb_orig_progname;
2543}
2544
2545static VALUE ruby_setproctitle(VALUE title);
2546
2547/*
2548 * call-seq:
2549 * Process.setproctitle(string) -> string
2550 *
2551 * Sets the process title that appears on the ps(1) command. Not
2552 * necessarily effective on all platforms. No exception will be
2553 * raised regardless of the result, nor will NotImplementedError be
2554 * raised even if the platform does not support the feature.
2555 *
2556 * Calling this method does not affect the value of $0.
2557 *
2558 * Process.setproctitle('myapp: worker #%d' % worker_id)
2559 *
2560 * This method first appeared in Ruby 2.1 to serve as a global
2561 * variable free means to change the process title.
2562 */
2563
2564static VALUE
2565proc_setproctitle(VALUE process, VALUE title)
2566{
2567 return ruby_setproctitle(title);
2568}
2569
2570static VALUE
2571ruby_setproctitle(VALUE title)
2572{
2573 const char *ptr = StringValueCStr(title);
2574 setproctitle("%.*s", RSTRING_LENINT(title), ptr);
2575 return title;
2576}
2577
2578static void
2579set_arg0(VALUE val, ID id, VALUE *_)
2580{
2581 if (origarg.argv == 0)
2582 rb_raise(rb_eRuntimeError, "$0 not initialized");
2583
2584 rb_progname = rb_str_new_frozen(ruby_setproctitle(val));
2585}
2586
2587static inline VALUE
2588external_str_new_cstr(const char *p)
2589{
2590#if UTF8_PATH
2591 VALUE str = rb_utf8_str_new_cstr(p);
2592 str = str_conv_enc(str, NULL, rb_default_external_encoding());
2593 return str;
2594#else
2595 return rb_external_str_new_cstr(p);
2596#endif
2597}
2598
2599void
2600ruby_script(const char *name)
2601{
2602 if (name) {
2603 rb_orig_progname = rb_progname = external_str_new_cstr(name);
2604 rb_vm_set_progname(rb_progname);
2605 }
2606}
2607
2612void
2614{
2615 rb_orig_progname = rb_progname = rb_str_dup(name);
2616 rb_vm_set_progname(rb_progname);
2617}
2618
2619static void
2620init_ids(ruby_cmdline_options_t *opt)
2621{
2622 rb_uid_t uid = getuid();
2623 rb_uid_t euid = geteuid();
2624 rb_gid_t gid = getgid();
2625 rb_gid_t egid = getegid();
2626
2627 if (uid != euid) opt->setids |= 1;
2628 if (egid != gid) opt->setids |= 2;
2629}
2630
2631#undef forbid_setid
2632static void
2633forbid_setid(const char *s, const ruby_cmdline_options_t *opt)
2634{
2635 if (opt->setids & 1)
2636 rb_raise(rb_eSecurityError, "no %s allowed while running setuid", s);
2637 if (opt->setids & 2)
2638 rb_raise(rb_eSecurityError, "no %s allowed while running setgid", s);
2639}
2640
2641static VALUE
2642verbose_getter(ID id, VALUE *ptr)
2643{
2644 return *rb_ruby_verbose_ptr();
2645}
2646
2647static void
2648verbose_setter(VALUE val, ID id, VALUE *variable)
2649{
2650 *rb_ruby_verbose_ptr() = RTEST(val) ? Qtrue : val;
2651}
2652
2653static VALUE
2654opt_W_getter(ID id, VALUE *dmy)
2655{
2656 VALUE v = *rb_ruby_verbose_ptr();
2657
2658 switch (v) {
2659 case Qnil:
2660 return INT2FIX(0);
2661 case Qfalse:
2662 return INT2FIX(1);
2663 case Qtrue:
2664 return INT2FIX(2);
2665 default:
2666 return Qnil;
2667 }
2668}
2669
2670static VALUE
2671debug_getter(ID id, VALUE *dmy)
2672{
2673 return *rb_ruby_debug_ptr();
2674}
2675
2676static void
2677debug_setter(VALUE val, ID id, VALUE *dmy)
2678{
2679 *rb_ruby_debug_ptr() = val;
2680}
2681
2682void
2684{
2685 rb_define_virtual_variable("$VERBOSE", verbose_getter, verbose_setter);
2686 rb_define_virtual_variable("$-v", verbose_getter, verbose_setter);
2687 rb_define_virtual_variable("$-w", verbose_getter, verbose_setter);
2689 rb_define_virtual_variable("$DEBUG", debug_getter, debug_setter);
2690 rb_define_virtual_variable("$-d", debug_getter, debug_setter);
2691
2692 rb_gvar_ractor_local("$VERBOSE");
2693 rb_gvar_ractor_local("$-v");
2694 rb_gvar_ractor_local("$-w");
2695 rb_gvar_ractor_local("$-W");
2696 rb_gvar_ractor_local("$DEBUG");
2697 rb_gvar_ractor_local("$-d");
2698
2699 rb_define_hooked_variable("$0", &rb_progname, 0, set_arg0);
2700 rb_define_hooked_variable("$PROGRAM_NAME", &rb_progname, 0, set_arg0);
2701
2702 rb_define_module_function(rb_mProcess, "argv0", proc_argv0, 0);
2703 rb_define_module_function(rb_mProcess, "setproctitle", proc_setproctitle, 1);
2704
2705 /*
2706 * ARGV contains the command line arguments used to run ruby.
2707 *
2708 * A library like OptionParser can be used to process command-line
2709 * arguments.
2710 */
2712}
2713
2714void
2715ruby_set_argv(int argc, char **argv)
2716{
2717 int i;
2718 VALUE av = rb_argv;
2719
2720 rb_ary_clear(av);
2721 for (i = 0; i < argc; i++) {
2722 VALUE arg = external_str_new_cstr(argv[i]);
2723
2724 OBJ_FREEZE(arg);
2725 rb_ary_push(av, arg);
2726 }
2727}
2728
2729void *
2730ruby_process_options(int argc, char **argv)
2731{
2733 VALUE iseq;
2734 const char *script_name = (argc > 0 && argv[0]) ? argv[0] : ruby_engine;
2735
2736 if (!origarg.argv || origarg.argc <= 0) {
2737 origarg.argc = argc;
2738 origarg.argv = argv;
2739 }
2740 ruby_script(script_name); /* for the time being */
2741 rb_argv0 = rb_str_new4(rb_progname);
2743 iseq = process_options(argc, argv, cmdline_options_init(&opt));
2744
2745#ifndef HAVE_SETPROCTITLE
2746 ruby_init_setproctitle(argc, argv);
2747#endif
2748
2749 return (void*)(struct RData*)iseq;
2750}
2751
2752static void
2753fill_standard_fds(void)
2754{
2755 int f0, f1, f2, fds[2];
2756 struct stat buf;
2757 f0 = fstat(0, &buf) == -1 && errno == EBADF;
2758 f1 = fstat(1, &buf) == -1 && errno == EBADF;
2759 f2 = fstat(2, &buf) == -1 && errno == EBADF;
2760 if (f0) {
2761 if (pipe(fds) == 0) {
2762 close(fds[1]);
2763 if (fds[0] != 0) {
2764 dup2(fds[0], 0);
2765 close(fds[0]);
2766 }
2767 }
2768 }
2769 if (f1 || f2) {
2770 if (pipe(fds) == 0) {
2771 close(fds[0]);
2772 if (f1 && fds[1] != 1)
2773 dup2(fds[1], 1);
2774 if (f2 && fds[1] != 2)
2775 dup2(fds[1], 2);
2776 if (fds[1] != 1 && fds[1] != 2)
2777 close(fds[1]);
2778 }
2779 }
2780}
2781
2782void
2783ruby_sysinit(int *argc, char ***argv)
2784{
2785#if defined(_WIN32)
2786 rb_w32_sysinit(argc, argv);
2787#endif
2788 if (*argc >= 0 && *argv) {
2789 origarg.argc = *argc;
2790 origarg.argv = *argv;
2791 }
2792 fill_standard_fds();
2793}
#define RUBY_EXTERN
Declaration of externally visible global variables.
Definition: dllexport.h:47
#define PATH_ENV
Definition: dosish.h:63
#define PATH_SEP_CHAR
Identical to PATH_SEP, except it is of type char.
Definition: dosish.h:49
VALUE rb_define_module(const char *name)
Defines a top-level module.
Definition: class.c:948
void rb_define_module_function(VALUE module, const char *name, VALUE(*func)(ANYARGS), int argc)
Defines a module function for a module.
Definition: class.c:2100
void rb_define_global_function(const char *name, VALUE(*func)(ANYARGS), int argc)
Defines a global function.
Definition: class.c:2110
#define rb_str_new2
Old name of rb_str_new_cstr.
Definition: string.h:1738
#define ISSPACE
Old name of rb_isspace.
Definition: ctype.h:88
#define T_STRING
Old name of RUBY_T_STRING.
Definition: value_type.h:78
#define INT2FIX
Old name of RB_INT2FIX.
Definition: long.h:48
#define OBJ_FREEZE_RAW
Old name of RB_OBJ_FREEZE_RAW.
Definition: fl_type.h:144
#define OBJ_FREEZE
Old name of RB_OBJ_FREEZE.
Definition: fl_type.h:143
#define ECONV_UNDEF_REPLACE
Old name of RUBY_ECONV_UNDEF_REPLACE.
Definition: transcode.h:523
#define ENCODING_GET(obj)
Old name of RB_ENCODING_GET.
Definition: encoding.h:108
#define ECONV_INVALID_REPLACE
Old name of RUBY_ECONV_INVALID_REPLACE.
Definition: transcode.h:521
#define ASSUME
Old name of RBIMPL_ASSUME.
Definition: assume.h:29
#define ALLOC_N
Old name of RB_ALLOC_N.
Definition: memory.h:393
#define STRNCASECMP
Old name of st_locale_insensitive_strncasecmp.
Definition: ctype.h:103
#define TOLOWER
Old name of rb_tolower.
Definition: ctype.h:101
#define Qtrue
Old name of RUBY_Qtrue.
#define Qnil
Old name of RUBY_Qnil.
#define Qfalse
Old name of RUBY_Qfalse.
#define ENC_CODERANGE_BROKEN
Old name of RUBY_ENC_CODERANGE_BROKEN.
Definition: coderange.h:182
#define NIL_P
Old name of RB_NIL_P.
#define scan_oct(s, l, e)
Old name of ruby_scan_oct.
Definition: util.h:74
#define CONST_ID
Old name of RUBY_CONST_ID.
Definition: symbol.h:47
#define ISALNUM
Old name of rb_isalnum.
Definition: ctype.h:91
#define rb_str_new4
Old name of rb_str_new_frozen.
Definition: string.h:1740
void ruby_script(const char *name)
Sets the current script name to this value.
Definition: ruby.c:2600
void ruby_set_argv(int argc, char **argv)
Sets argv that ruby understands.
Definition: ruby.c:2715
void ruby_set_script_name(VALUE name)
Sets the current script name to this value.
Definition: ruby.c:2613
void ruby_init_loadpath(void)
Sets up $LOAD_PATH.
Definition: ruby.c:659
void * ruby_process_options(int argc, char **argv)
Identical to ruby_options(), except it raises ruby-level exceptions on failure.
Definition: ruby.c:2730
void ruby_prog_init(void)
Defines built-in variables.
Definition: ruby.c:2683
void ruby_incpush(const char *path)
Appends the given path to the end of the load path.
Definition: ruby.c:494
#define ruby_debug
This variable controls whether the interpreter is in debug mode.
Definition: error.h:470
void rb_raise(VALUE exc, const char *fmt,...)
Exception entry point.
Definition: error.c:3021
void rb_exc_raise(VALUE mesg)
Raises an exception in the current thread.
Definition: eval.c:671
#define ruby_verbose
This variable controls whether the interpreter is in debug mode.
Definition: error.h:459
void rb_fatal(const char *fmt,...)
Raises the unsung "fatal" exception.
Definition: error.c:3072
VALUE * rb_ruby_verbose_ptr(void)
This is an implementation detail of ruby_verbose.
Definition: vm.c:3861
void rb_warn(const char *fmt,...)
Identical to rb_warning(), except it reports always regardless of runtime -W flag.
Definition: error.c:418
VALUE * rb_ruby_debug_ptr(void)
This is an implementation detail of ruby_debug.
Definition: vm.c:3868
VALUE rb_ensure(VALUE(*b_proc)(VALUE), VALUE data1, VALUE(*e_proc)(VALUE), VALUE data2)
An equivalent to ensure clause.
Definition: eval.c:979
void rb_warning(const char *fmt,...)
Issues a warning.
Definition: error.c:449
@ RB_WARN_CATEGORY_DEPRECATED
Warning is for deprecated features.
Definition: error.h:48
@ RB_WARN_CATEGORY_EXPERIMENTAL
Warning is for experimental features.
Definition: error.h:51
VALUE rb_mProcess
Process module.
Definition: process.c:8667
VALUE rb_stdin
STDIN constant.
Definition: io.c:198
VALUE rb_stdout
STDOUT constant.
Definition: io.c:198
VALUE rb_cString
String class.
Definition: string.c:80
void ruby_show_copyright(void)
Prints the copyright notice of the CRuby interpreter to stdout.
Definition: version.c:145
void ruby_sysinit(int *argc, char ***argv)
Initializes the process for libruby.
Definition: ruby.c:2783
void ruby_show_version(void)
Prints the version information of the CRuby interpreter to stdout.
Definition: version.c:123
Encoding relates APIs.
int rb_enc_dummy_p(rb_encoding *enc)
Queries if the passed encoding is dummy.
Definition: encoding.c:203
VALUE rb_enc_associate(VALUE obj, rb_encoding *enc)
Identical to rb_enc_associate(), except it takes an encoding itself instead of its index.
Definition: encoding.c:1066
rb_encoding * rb_utf8_encoding(void)
Queries the encoding that represents UTF-8.
Definition: encoding.c:1527
rb_encoding * rb_ascii8bit_encoding(void)
Queries the encoding that represents ASCII-8BIT a.k.a.
Definition: encoding.c:1515
rb_encoding * rb_default_internal_encoding(void)
Queries the "default internal" encoding.
Definition: encoding.c:1724
void rb_enc_copy(VALUE dst, VALUE src)
Destructively copies the encoding of the latter object to that of former one.
Definition: encoding.c:1192
rb_encoding * rb_enc_from_index(int idx)
Identical to rb_find_encoding(), except it takes an encoding index instead of a Ruby object.
Definition: encoding.c:414
void rb_enc_set_default_internal(VALUE encoding)
Destructively assigns the passed encoding as the default internal encoding.
Definition: encoding.c:1774
VALUE rb_enc_from_encoding(rb_encoding *enc)
Queries the Ruby-level counterpart instance of rb_cEncoding that corresponds to the passed encoding.
Definition: encoding.c:188
rb_encoding * rb_default_external_encoding(void)
Queries the "default external" encoding.
Definition: encoding.c:1637
rb_encoding * rb_locale_encoding(void)
Queries the encoding that represents the current locale.
Definition: encoding.c:1573
void rb_enc_set_default_external(VALUE encoding)
Destructively assigns the passed encoding as the default external encoding.
Definition: encoding.c:1691
int rb_enc_find_index(const char *name)
Queries the index of the encoding.
Definition: encoding.c:881
VALUE rb_str_conv_enc(VALUE str, rb_encoding *from, rb_encoding *to)
Encoding conversion main routine.
Definition: string.c:1182
VALUE rb_str_conv_enc_opts(VALUE str, rb_encoding *from, rb_encoding *to, int ecflags, VALUE ecopts)
Identical to rb_str_conv_enc(), except it additionally takes IO encoder options.
Definition: string.c:1067
VALUE rb_enc_interned_str(const char *ptr, long len, rb_encoding *enc)
Identical to rb_enc_str_new(), except it returns a "f"string.
Definition: string.c:11953
Declares rb_raise().
VALUE rb_funcall_passing_block(VALUE recv, ID mid, int argc, const VALUE *argv)
Identical to rb_funcallv_public(), except you can pass the passed block.
Definition: vm_eval.c:1165
VALUE rb_funcall(VALUE recv, ID mid, int n,...)
Calls a method.
Definition: vm_eval.c:1102
VALUE rb_funcallv(VALUE recv, ID mid, int argc, const VALUE *argv)
Identical to rb_funcall(), except it takes the method arguments as a C array.
Definition: vm_eval.c:1061
void rb_gc_register_address(VALUE *valptr)
Inform the garbage collector that valptr points to a live Ruby object that should not be moved.
Definition: gc.c:8707
void rb_gc_register_mark_object(VALUE object)
Inform the garbage collector that object is a live Ruby object that should not be moved.
Definition: gc.c:8686
VALUE rb_ary_shift(VALUE ary)
Destructively deletes an element from the beginning of the passed array and returns what was deleted.
Definition: array.c:1420
void rb_ary_modify(VALUE ary)
Declares that the array is about to be modified.
Definition: array.c:607
VALUE rb_ary_replace(VALUE copy, VALUE orig)
Replaces the contents of the former object with the contents of the latter.
Definition: array.c:4415
VALUE rb_ary_tmp_new(long capa)
Allocates a "temporary" array.
Definition: array.c:847
VALUE rb_ary_clear(VALUE ary)
Destructively removes everything form an array.
Definition: array.c:4465
VALUE rb_ary_push(VALUE ary, VALUE elem)
Special case of rb_ary_cat() that it adds only one element.
Definition: array.c:1308
VALUE rb_str_encode_ospath(VALUE path)
Converts a string into an "OS Path" encoding, if any.
Definition: file.c:251
VALUE rb_file_expand_path(VALUE fname, VALUE dname)
Identical to rb_file_absolute_path(), except it additionally understands ~.
Definition: file.c:4118
VALUE rb_hash_new(void)
Creates a new, empty hash object.
Definition: hash.c:1529
VALUE rb_io_gets(VALUE io)
Reads a "line" from the given IO.
Definition: io.c:3955
VALUE rb_rs
The record separator character for inputs, or the $/.
Definition: io.c:202
VALUE rb_io_ungetbyte(VALUE io, VALUE b)
Identical to rb_io_ungetc(), except it doesn't take the encoding of the passed IO into account.
Definition: io.c:4668
VALUE rb_io_getbyte(VALUE io)
Reads a byte from the given IO.
Definition: io.c:4587
VALUE rb_io_fdopen(int fd, int flags, const char *path)
Creates an IO instance whose backend is the given file descriptor.
Definition: io.c:8498
void rb_update_max_fd(int fd)
Informs the interpreter that the passed fd can be the max.
Definition: io.c:234
VALUE rb_io_write(VALUE io, VALUE str)
Writes the given string to the given IO.
Definition: io.c:2063
int rb_cloexec_open(const char *pathname, int flags, mode_t mode)
Opens a file that closes on exec.
Definition: io.c:314
VALUE rb_fs
The field separator character for inputs, or the $;.
Definition: string.c:553
VALUE rb_output_rs
The record separator character for outputs, or the $\.
Definition: io.c:203
VALUE rb_io_flush(VALUE io)
Flushes any buffered data within the passed IO to the underlying operating system.
Definition: io.c:2162
int rb_pipe(int *pipes)
This is an rb_cloexec_pipe() + rb_update_max_fd() combo.
Definition: io.c:6792
VALUE rb_io_close(VALUE io)
Closes the IO.
Definition: io.c:5234
void rb_lastline_set(VALUE str)
Updates $_.
Definition: vm.c:1598
VALUE rb_lastline_get(void)
Queries the last line, or the $_.
Definition: vm.c:1592
rb_pid_t rb_waitpid(rb_pid_t pid, int *status, int flags)
Waits for a process, with releasing GVL.
Definition: process.c:1426
VALUE rb_f_exec(int argc, const VALUE *argv)
Replaces the current process by running the given external command.
Definition: process.c:3091
VALUE rb_reg_new(const char *src, long len, int opts)
Creates a new Regular expression.
Definition: re.c:3029
VALUE rb_utf8_str_new(const char *ptr, long len)
Identical to rb_str_new(), except it generates a string of "UTF-8" encoding.
Definition: string.c:932
VALUE rb_utf8_str_new_cstr(const char *ptr)
Identical to rb_str_new_cstr(), except it generates a string of "UTF-8" encoding.
Definition: string.c:972
#define rb_str_new_lit(str)
Identical to rb_str_new_static(), except it cannot take string variables.
Definition: string.h:1769
VALUE rb_str_tmp_new(long len)
Allocates a "temporary" string.
Definition: string.c:1540
VALUE rb_str_subseq(VALUE str, long beg, long len)
Identical to rb_str_substr(), except the numbers are interpreted as byte offsets instead of character...
Definition: string.c:2821
VALUE rb_str_new_frozen(VALUE str)
Creates a frozen copy of the string, if necessary.
Definition: string.c:1356
VALUE rb_str_cat2(VALUE, const char *)
Just another name of rb_str_cat_cstr.
VALUE rb_str_dup(VALUE str)
Duplicates a string.
Definition: string.c:1808
VALUE rb_str_cat(VALUE dst, const char *src, long srclen)
Destructively appends the passed contents to the string.
Definition: string.c:3161
void rb_str_set_len(VALUE str, long len)
Overwrites the length of the string.
Definition: string.c:3039
#define rb_strlen_lit(str)
Length of a string literal.
Definition: string.h:1756
VALUE rb_str_freeze(VALUE str)
This is the implementation of String#freeze.
Definition: string.c:2963
VALUE rb_str_new(const char *ptr, long len)
Allocates an instance of rb_cString.
Definition: string.c:918
VALUE rb_str_new_cstr(const char *ptr)
Identical to rb_str_new(), except it assumes the passed pointer is a pointer to a C string.
Definition: string.c:952
VALUE rb_str_resize(VALUE str, long len)
Overwrites the length of the string.
Definition: string.c:3056
void rb_str_modify_expand(VALUE str, long capa)
Identical to rb_str_modify(), except it additionally expands the capacity of the receiver.
Definition: string.c:2467
VALUE rb_external_str_new_cstr(const char *ptr)
Identical to rb_external_str_new(), except it assumes the passed pointer is a pointer to a C string.
Definition: string.c:1245
VALUE rb_str_cat_cstr(VALUE dst, const char *src)
Identical to rb_str_cat(), except it assumes the passed pointer is a pointer to a C string.
Definition: string.c:3171
VALUE rb_const_get(VALUE space, ID name)
Identical to rb_const_defined(), except it returns the actual defined value.
Definition: variable.c:2733
VALUE rb_attr_get(VALUE obj, ID name)
Identical to rb_ivar_get()
Definition: variable.c:1293
VALUE rb_ivar_set(VALUE obj, ID name, VALUE val)
Identical to rb_iv_set(), except it accepts the name as an ID instead of a C string.
Definition: variable.c:1575
void rb_const_set(VALUE space, ID name, VALUE val)
Names a constant.
Definition: variable.c:3106
VALUE rb_const_remove(VALUE space, ID name)
Identical to rb_mod_remove_const(), except it takes the name as ID instead of VALUE.
Definition: variable.c:2836
static ID rb_intern_const(const char *str)
This is a "tiny optimisation" over rb_intern().
Definition: symbol.h:276
ID rb_intern(const char *name)
Finds or creates a symbol of the given name.
Definition: symbol.c:782
void rb_define_global_const(const char *name, VALUE val)
Identical to rb_define_const(), except it defines that of "global", i.e.
Definition: variable.c:3265
rb_gvar_setter_t rb_gvar_readonly_setter
This function just raises rb_eNameError.
Definition: variable.h:135
VALUE rb_gv_set(const char *name, VALUE val)
Assigns to a global variable.
Definition: variable.c:755
void rb_define_virtual_variable(const char *name, rb_gvar_getter_t *getter, rb_gvar_setter_t *setter)
Defines a global variable that is purely function-backended.
Definition: variable.c:594
void rb_define_hooked_variable(const char *name, VALUE *var, rb_gvar_getter_t *getter, rb_gvar_setter_t *setter)
Identical to rb_define_virtual_variable(), but can also specify a storage.
Definition: variable.c:563
@ RUBY_IO_READABLE
IO::READABLE
Definition: io.h:67
VALUE rb_io_wait(VALUE io, VALUE events, VALUE timeout)
Blocks until the passed IO is ready for the passed events.
Definition: io.c:1294
void ruby_setenv(const char *key, const char *val)
Sets an environment variable.
Definition: hash.c:5134
void ruby_each_words(const char *str, void(*func)(const char *word, int len, void *argv), void *argv)
Scans the passed string, with calling the callback function every time it encounters a "word".
#define strdup(s)
Just another name of ruby_strdup.
Definition: util.h:176
const char ruby_engine[]
This is just "ruby" for us.
Definition: version.c:48
const int ruby_patchlevel
This is a monotonic increasing integer that describes specific "patch" level.
Definition: version.c:43
#define RB_INT2NUM
Just another name of rb_int2num_inline.
Definition: int.h:37
VALUE rb_sprintf(const char *fmt,...)
Ruby's extended sprintf(3).
Definition: sprintf.c:1201
#define MEMZERO(p, type, n)
Handy macro to erase a region of memory.
Definition: memory.h:354
#define MEMMOVE(p1, p2, type, n)
Handy macro to call memmove.
Definition: memory.h:378
VALUE type(ANYARGS)
ANYARGS-ed function type.
Definition: cxxanyargs.hpp:56
char * rb_enc_path_last_separator(const char *path, const char *end, rb_encoding *enc)
Returns the last path component.
Definition: file.c:3471
#define RARRAY_LEN
Just another name of rb_array_len.
Definition: rarray.h:68
static void RARRAY_ASET(VALUE ary, long i, VALUE v)
Assigns an object in an array.
Definition: rarray.h:571
#define RARRAY_AREF(a, i)
Definition: rarray.h:588
#define RARRAY_CONST_PTR
Just another name of rb_array_const_ptr.
Definition: rarray.h:69
#define RFILE(obj)
Convenient casting macro.
Definition: rfile.h:50
@ RSTRING_EMBED_LEN_MAX
Max possible number of characters that can be embedded.
Definition: rstring.h:215
#define StringValuePtr(v)
Identical to StringValue, except it returns a char*.
Definition: rstring.h:82
static int RSTRING_LENINT(VALUE str)
Identical to RSTRING_LEN(), except it differs for the return type.
Definition: rstring.h:553
#define RSTRING_GETMEM(str, ptrvar, lenvar)
Convenient macro to obtain the contents and length at once.
Definition: rstring.h:573
static long RSTRING_LEN(VALUE str)
Queries the length of the string.
Definition: rstring.h:483
static char * RSTRING_PTR(VALUE str)
Queries the contents pointer of the string.
Definition: rstring.h:497
#define StringValueCStr(v)
Identical to StringValuePtr, except it additionally checks for the contents for viability as a C stri...
Definition: rstring.h:95
VALUE rb_argv0
The value of $0 at process bootup.
Definition: ruby.c:1677
void * rb_load_file_str(VALUE file)
Identical to rb_load_file(), except it takes the argument as a Ruby's string instead of C's.
Definition: ruby.c:2515
void * rb_load_file(const char *file)
Loads the given file.
Definition: ruby.c:2508
#define rb_argv
Just another name of rb_get_argv.
Definition: ruby.h:31
const char * rb_obj_classname(VALUE obj)
Queries the name of the class of the passed object.
Definition: variable.c:309
#define RTEST
This is an old name of RB_TEST.
#define _(args)
This was a transition path from K&R to ANSI.
Definition: stdarg.h:35
Definition: dtoa.c:302
static bool RB_TYPE_P(VALUE obj, enum ruby_value_type t)
Queries if the given object is of given type.
Definition: value_type.h:375
void ruby_xfree(void *ptr)
Deallocates a storage instance.
Definition: gc.c:11772