Commit | Line | Data |
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bb2ec1b3 TT |
1 | /* General Compile and inject code |
2 | ||
e2882c85 | 3 | Copyright (C) 2014-2018 Free Software Foundation, Inc. |
bb2ec1b3 TT |
4 | |
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 3 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
19 | ||
20 | #include "defs.h" | |
cb814510 | 21 | #include "top.h" |
bb2ec1b3 TT |
22 | #include "ui-out.h" |
23 | #include "command.h" | |
24 | #include "cli/cli-script.h" | |
25 | #include "cli/cli-utils.h" | |
26 | #include "completer.h" | |
27 | #include "gdbcmd.h" | |
28 | #include "compile.h" | |
29 | #include "compile-internal.h" | |
30 | #include "compile-object-load.h" | |
31 | #include "compile-object-run.h" | |
32 | #include "language.h" | |
33 | #include "frame.h" | |
34 | #include "source.h" | |
35 | #include "block.h" | |
36 | #include "arch-utils.h" | |
37 | #include "filestuff.h" | |
38 | #include "target.h" | |
39 | #include "osabi.h" | |
3ce348af | 40 | #include "gdb_wait.h" |
36de76f9 | 41 | #include "valprint.h" |
b80cf838 TT |
42 | #include "common/gdb_optional.h" |
43 | #include "common/gdb_unlinker.h" | |
b4987c95 | 44 | #include "common/pathstuff.h" |
bb2ec1b3 TT |
45 | |
46 | \f | |
47 | ||
48 | /* Initial filename for temporary files. */ | |
49 | ||
50 | #define TMP_PREFIX "/tmp/gdbobj-" | |
51 | ||
52 | /* Hold "compile" commands. */ | |
53 | ||
54 | static struct cmd_list_element *compile_command_list; | |
55 | ||
56 | /* Debug flag for "compile" commands. */ | |
57 | ||
58 | int compile_debug; | |
59 | ||
946d3d10 KS |
60 | /* Object of this type are stored in the compiler's symbol_err_map. */ |
61 | ||
62 | struct symbol_error | |
63 | { | |
64 | /* The symbol. */ | |
65 | ||
66 | const struct symbol *sym; | |
67 | ||
68 | /* The error message to emit. This is malloc'd and owned by the | |
69 | hash table. */ | |
70 | ||
71 | char *message; | |
72 | }; | |
73 | ||
74 | /* Hash a type_map_instance. */ | |
75 | ||
76 | static hashval_t | |
77 | hash_type_map_instance (const void *p) | |
78 | { | |
79 | const struct type_map_instance *inst = (const struct type_map_instance *) p; | |
80 | ||
81 | return htab_hash_pointer (inst->type); | |
82 | } | |
83 | ||
84 | /* Check two type_map_instance objects for equality. */ | |
85 | ||
86 | static int | |
87 | eq_type_map_instance (const void *a, const void *b) | |
88 | { | |
89 | const struct type_map_instance *insta = (const struct type_map_instance *) a; | |
90 | const struct type_map_instance *instb = (const struct type_map_instance *) b; | |
91 | ||
92 | return insta->type == instb->type; | |
93 | } | |
94 | ||
95 | /* Hash function for struct symbol_error. */ | |
96 | ||
97 | static hashval_t | |
98 | hash_symbol_error (const void *a) | |
99 | { | |
100 | const struct symbol_error *se = (const struct symbol_error *) a; | |
101 | ||
102 | return htab_hash_pointer (se->sym); | |
103 | } | |
104 | ||
105 | /* Equality function for struct symbol_error. */ | |
106 | ||
107 | static int | |
108 | eq_symbol_error (const void *a, const void *b) | |
109 | { | |
110 | const struct symbol_error *sea = (const struct symbol_error *) a; | |
111 | const struct symbol_error *seb = (const struct symbol_error *) b; | |
112 | ||
113 | return sea->sym == seb->sym; | |
114 | } | |
115 | ||
116 | /* Deletion function for struct symbol_error. */ | |
117 | ||
118 | static void | |
119 | del_symbol_error (void *a) | |
120 | { | |
121 | struct symbol_error *se = (struct symbol_error *) a; | |
122 | ||
123 | xfree (se->message); | |
124 | xfree (se); | |
125 | } | |
126 | ||
127 | /* Constructor for compile_instance. */ | |
128 | ||
129 | compile_instance::compile_instance (struct gcc_base_context *gcc_fe, | |
130 | const char *options) | |
131 | : m_gcc_fe (gcc_fe), m_gcc_target_options (options), | |
132 | m_symbol_err_map (NULL) | |
133 | { | |
134 | m_type_map = htab_create_alloc (10, hash_type_map_instance, | |
135 | eq_type_map_instance, | |
136 | xfree, xcalloc, xfree); | |
137 | } | |
138 | ||
139 | /* See compile-internal.h. */ | |
140 | ||
141 | bool | |
142 | compile_instance::get_cached_type (struct type *type, gcc_type &ret) const | |
143 | { | |
144 | struct type_map_instance inst, *found; | |
145 | ||
146 | inst.type = type; | |
147 | found = (struct type_map_instance *) htab_find (m_type_map, &inst); | |
148 | if (found != NULL) | |
149 | { | |
150 | ret = found->gcc_type_handle; | |
151 | return true; | |
152 | } | |
153 | ||
154 | return false; | |
155 | } | |
156 | ||
157 | /* See compile-internal.h. */ | |
158 | ||
159 | void | |
160 | compile_instance::insert_type (struct type *type, gcc_type gcc_type) | |
161 | { | |
162 | struct type_map_instance inst, *add; | |
163 | void **slot; | |
164 | ||
165 | inst.type = type; | |
166 | inst.gcc_type_handle = gcc_type; | |
167 | slot = htab_find_slot (m_type_map, &inst, INSERT); | |
168 | ||
169 | add = (struct type_map_instance *) *slot; | |
170 | /* The type might have already been inserted in order to handle | |
171 | recursive types. */ | |
172 | if (add != NULL && add->gcc_type_handle != gcc_type) | |
173 | error (_("Unexpected type id from GCC, check you use recent enough GCC.")); | |
174 | ||
175 | if (add == NULL) | |
176 | { | |
177 | add = XNEW (struct type_map_instance); | |
178 | *add = inst; | |
179 | *slot = add; | |
180 | } | |
181 | } | |
182 | ||
183 | /* See compile-internal.h. */ | |
184 | ||
185 | void | |
186 | compile_instance::insert_symbol_error (const struct symbol *sym, | |
187 | const char *text) | |
188 | { | |
189 | struct symbol_error e; | |
190 | void **slot; | |
191 | ||
192 | if (m_symbol_err_map == NULL) | |
193 | { | |
194 | m_symbol_err_map = htab_create_alloc (10, | |
195 | hash_symbol_error, | |
196 | eq_symbol_error, | |
197 | del_symbol_error, | |
198 | xcalloc, | |
199 | xfree); | |
200 | } | |
201 | ||
202 | e.sym = sym; | |
203 | slot = htab_find_slot (m_symbol_err_map, &e, INSERT); | |
204 | if (*slot == NULL) | |
205 | { | |
206 | struct symbol_error *e = XNEW (struct symbol_error); | |
207 | ||
208 | e->sym = sym; | |
209 | e->message = xstrdup (text); | |
210 | *slot = e; | |
211 | } | |
212 | } | |
213 | ||
214 | /* See compile-internal.h. */ | |
215 | ||
216 | void | |
217 | compile_instance::error_symbol_once (const struct symbol *sym) | |
218 | { | |
219 | struct symbol_error search; | |
220 | struct symbol_error *err; | |
221 | ||
222 | if (m_symbol_err_map == NULL) | |
223 | return; | |
224 | ||
225 | search.sym = sym; | |
226 | err = (struct symbol_error *) htab_find (m_symbol_err_map, &search); | |
227 | if (err == NULL || err->message == NULL) | |
228 | return; | |
229 | ||
230 | gdb::unique_xmalloc_ptr<char> message (err->message); | |
231 | err->message = NULL; | |
232 | error (_("%s"), message.get ()); | |
233 | } | |
234 | ||
bb2ec1b3 TT |
235 | /* Implement "show debug compile". */ |
236 | ||
237 | static void | |
238 | show_compile_debug (struct ui_file *file, int from_tty, | |
239 | struct cmd_list_element *c, const char *value) | |
240 | { | |
241 | fprintf_filtered (file, _("Compile debugging is %s.\n"), value); | |
242 | } | |
243 | ||
244 | \f | |
245 | ||
246 | /* Check *ARG for a "-raw" or "-r" argument. Return 0 if not seen. | |
247 | Return 1 if seen and update *ARG. */ | |
248 | ||
249 | static int | |
6663cf91 | 250 | check_raw_argument (const char **arg) |
bb2ec1b3 TT |
251 | { |
252 | *arg = skip_spaces (*arg); | |
253 | ||
254 | if (arg != NULL | |
255 | && (check_for_argument (arg, "-raw", sizeof ("-raw") - 1) | |
256 | || check_for_argument (arg, "-r", sizeof ("-r") - 1))) | |
257 | return 1; | |
258 | return 0; | |
259 | } | |
260 | ||
261 | /* Handle the input from the 'compile file' command. The "compile | |
262 | file" command is used to evaluate an expression contained in a file | |
263 | that may contain calls to the GCC compiler. */ | |
264 | ||
265 | static void | |
6663cf91 | 266 | compile_file_command (const char *arg, int from_tty) |
bb2ec1b3 TT |
267 | { |
268 | enum compile_i_scope_types scope = COMPILE_I_SIMPLE_SCOPE; | |
bb2ec1b3 | 269 | |
b7b633e9 | 270 | scoped_restore save_async = make_scoped_restore (¤t_ui->async, 0); |
bb2ec1b3 TT |
271 | |
272 | /* Check the user did not just <enter> after command. */ | |
273 | if (arg == NULL) | |
274 | error (_("You must provide a filename for this command.")); | |
275 | ||
276 | /* Check if a raw (-r|-raw) argument is provided. */ | |
277 | if (arg != NULL && check_raw_argument (&arg)) | |
278 | { | |
279 | scope = COMPILE_I_RAW_SCOPE; | |
280 | arg = skip_spaces (arg); | |
281 | } | |
282 | ||
283 | /* After processing arguments, check there is a filename at the end | |
284 | of the command. */ | |
285 | if (arg[0] == '\0') | |
286 | error (_("You must provide a filename with the raw option set.")); | |
287 | ||
288 | if (arg[0] == '-') | |
289 | error (_("Unknown argument specified.")); | |
290 | ||
291 | arg = skip_spaces (arg); | |
e3e41d58 TT |
292 | gdb::unique_xmalloc_ptr<char> abspath = gdb_abspath (arg); |
293 | std::string buffer = string_printf ("#include \"%s\"\n", abspath.get ()); | |
294 | eval_compile_command (NULL, buffer.c_str (), scope, NULL); | |
bb2ec1b3 TT |
295 | } |
296 | ||
297 | /* Handle the input from the 'compile code' command. The | |
298 | "compile code" command is used to evaluate an expression that may | |
299 | contain calls to the GCC compiler. The language expected in this | |
300 | compile command is the language currently set in GDB. */ | |
301 | ||
302 | static void | |
6663cf91 | 303 | compile_code_command (const char *arg, int from_tty) |
bb2ec1b3 | 304 | { |
bb2ec1b3 TT |
305 | enum compile_i_scope_types scope = COMPILE_I_SIMPLE_SCOPE; |
306 | ||
b7b633e9 | 307 | scoped_restore save_async = make_scoped_restore (¤t_ui->async, 0); |
bb2ec1b3 TT |
308 | |
309 | if (arg != NULL && check_raw_argument (&arg)) | |
310 | { | |
311 | scope = COMPILE_I_RAW_SCOPE; | |
312 | arg = skip_spaces (arg); | |
313 | } | |
314 | ||
315 | arg = skip_spaces (arg); | |
316 | ||
317 | if (arg != NULL && !check_for_argument (&arg, "--", sizeof ("--") - 1)) | |
318 | { | |
319 | if (arg[0] == '-') | |
320 | error (_("Unknown argument specified.")); | |
321 | } | |
322 | ||
323 | if (arg && *arg) | |
5c65b58a | 324 | eval_compile_command (NULL, arg, scope, NULL); |
bb2ec1b3 TT |
325 | else |
326 | { | |
12973681 | 327 | counted_command_line l = get_command_line (compile_control, ""); |
bb2ec1b3 | 328 | |
bb2ec1b3 | 329 | l->control_u.compile.scope = scope; |
93921405 | 330 | execute_control_command_untraced (l.get ()); |
bb2ec1b3 | 331 | } |
bb2ec1b3 TT |
332 | } |
333 | ||
36de76f9 JK |
334 | /* Callback for compile_print_command. */ |
335 | ||
336 | void | |
337 | compile_print_value (struct value *val, void *data_voidp) | |
338 | { | |
9a3c8263 | 339 | const struct format_data *fmtp = (const struct format_data *) data_voidp; |
36de76f9 JK |
340 | |
341 | print_value (val, fmtp); | |
342 | } | |
343 | ||
344 | /* Handle the input from the 'compile print' command. The "compile | |
345 | print" command is used to evaluate and print an expression that may | |
346 | contain calls to the GCC compiler. The language expected in this | |
347 | compile command is the language currently set in GDB. */ | |
348 | ||
349 | static void | |
6663cf91 | 350 | compile_print_command (const char *arg, int from_tty) |
36de76f9 | 351 | { |
36de76f9 JK |
352 | enum compile_i_scope_types scope = COMPILE_I_PRINT_ADDRESS_SCOPE; |
353 | struct format_data fmt; | |
354 | ||
b7b633e9 | 355 | scoped_restore save_async = make_scoped_restore (¤t_ui->async, 0); |
36de76f9 JK |
356 | |
357 | /* Passing &FMT as SCOPE_DATA is safe as do_module_cleanup will not | |
358 | touch the stale pointer if compile_object_run has already quit. */ | |
359 | print_command_parse_format (&arg, "compile print", &fmt); | |
360 | ||
361 | if (arg && *arg) | |
362 | eval_compile_command (NULL, arg, scope, &fmt); | |
363 | else | |
364 | { | |
12973681 | 365 | counted_command_line l = get_command_line (compile_control, ""); |
36de76f9 | 366 | |
36de76f9 JK |
367 | l->control_u.compile.scope = scope; |
368 | l->control_u.compile.scope_data = &fmt; | |
93921405 | 369 | execute_control_command_untraced (l.get ()); |
36de76f9 | 370 | } |
36de76f9 JK |
371 | } |
372 | ||
bb2ec1b3 TT |
373 | /* A cleanup function to remove a directory and all its contents. */ |
374 | ||
375 | static void | |
376 | do_rmdir (void *arg) | |
377 | { | |
9a3c8263 | 378 | const char *dir = (const char *) arg; |
bb2ec1b3 | 379 | char *zap; |
3ce348af CG |
380 | int wstat; |
381 | ||
61012eef | 382 | gdb_assert (startswith (dir, TMP_PREFIX)); |
bb2ec1b3 | 383 | zap = concat ("rm -rf ", dir, (char *) NULL); |
3ce348af CG |
384 | wstat = system (zap); |
385 | if (wstat == -1 || !WIFEXITED (wstat) || WEXITSTATUS (wstat) != 0) | |
386 | warning (_("Could not remove temporary directory %s"), dir); | |
387 | XDELETEVEC (zap); | |
bb2ec1b3 TT |
388 | } |
389 | ||
390 | /* Return the name of the temporary directory to use for .o files, and | |
391 | arrange for the directory to be removed at shutdown. */ | |
392 | ||
393 | static const char * | |
394 | get_compile_file_tempdir (void) | |
395 | { | |
396 | static char *tempdir_name; | |
397 | ||
398 | #define TEMPLATE TMP_PREFIX "XXXXXX" | |
399 | char tname[sizeof (TEMPLATE)]; | |
400 | ||
401 | if (tempdir_name != NULL) | |
402 | return tempdir_name; | |
403 | ||
404 | strcpy (tname, TEMPLATE); | |
405 | #undef TEMPLATE | |
1bc1068a | 406 | #ifdef HAVE_MKDTEMP |
bb2ec1b3 | 407 | tempdir_name = mkdtemp (tname); |
1bc1068a JK |
408 | #else |
409 | error (_("Command not supported on this host.")); | |
410 | #endif | |
bb2ec1b3 TT |
411 | if (tempdir_name == NULL) |
412 | perror_with_name (_("Could not make temporary directory")); | |
413 | ||
414 | tempdir_name = xstrdup (tempdir_name); | |
415 | make_final_cleanup (do_rmdir, tempdir_name); | |
416 | return tempdir_name; | |
417 | } | |
418 | ||
aaee65ae | 419 | /* Compute the names of source and object files to use. */ |
bb2ec1b3 | 420 | |
aaee65ae PA |
421 | static compile_file_names |
422 | get_new_file_names () | |
bb2ec1b3 TT |
423 | { |
424 | static int seq; | |
425 | const char *dir = get_compile_file_tempdir (); | |
426 | ||
427 | ++seq; | |
aaee65ae PA |
428 | |
429 | return compile_file_names (string_printf ("%s%sout%d.c", | |
430 | dir, SLASH_STRING, seq), | |
431 | string_printf ("%s%sout%d.o", | |
432 | dir, SLASH_STRING, seq)); | |
bb2ec1b3 TT |
433 | } |
434 | ||
435 | /* Get the block and PC at which to evaluate an expression. */ | |
436 | ||
437 | static const struct block * | |
438 | get_expr_block_and_pc (CORE_ADDR *pc) | |
439 | { | |
440 | const struct block *block = get_selected_block (pc); | |
441 | ||
442 | if (block == NULL) | |
443 | { | |
444 | struct symtab_and_line cursal = get_current_source_symtab_and_line (); | |
445 | ||
446 | if (cursal.symtab) | |
447 | block = BLOCKVECTOR_BLOCK (SYMTAB_BLOCKVECTOR (cursal.symtab), | |
448 | STATIC_BLOCK); | |
449 | if (block != NULL) | |
450 | *pc = BLOCK_START (block); | |
451 | } | |
452 | else | |
453 | *pc = BLOCK_START (block); | |
454 | ||
455 | return block; | |
456 | } | |
457 | ||
773a1edc TT |
458 | /* Call buildargv (via gdb_argv), set its result for S into *ARGVP but |
459 | calculate also the number of parsed arguments into *ARGCP. If | |
460 | buildargv has returned NULL then *ARGCP is set to zero. */ | |
bb2ec1b3 TT |
461 | |
462 | static void | |
463 | build_argc_argv (const char *s, int *argcp, char ***argvp) | |
464 | { | |
773a1edc TT |
465 | gdb_argv args (s); |
466 | ||
467 | *argcp = args.count (); | |
468 | *argvp = args.release (); | |
bb2ec1b3 TT |
469 | } |
470 | ||
471 | /* String for 'set compile-args' and 'show compile-args'. */ | |
472 | static char *compile_args; | |
473 | ||
474 | /* Parsed form of COMPILE_ARGS. COMPILE_ARGS_ARGV is NULL terminated. */ | |
475 | static int compile_args_argc; | |
476 | static char **compile_args_argv; | |
477 | ||
478 | /* Implement 'set compile-args'. */ | |
479 | ||
480 | static void | |
eb4c3f4a | 481 | set_compile_args (const char *args, int from_tty, struct cmd_list_element *c) |
bb2ec1b3 TT |
482 | { |
483 | freeargv (compile_args_argv); | |
484 | build_argc_argv (compile_args, &compile_args_argc, &compile_args_argv); | |
485 | } | |
486 | ||
487 | /* Implement 'show compile-args'. */ | |
488 | ||
489 | static void | |
490 | show_compile_args (struct ui_file *file, int from_tty, | |
491 | struct cmd_list_element *c, const char *value) | |
492 | { | |
493 | fprintf_filtered (file, _("Compile command command-line arguments " | |
494 | "are \"%s\".\n"), | |
495 | value); | |
496 | } | |
497 | ||
498 | /* Append ARGC and ARGV (as parsed by build_argc_argv) to *ARGCP and *ARGVP. | |
499 | ARGCP+ARGVP can be zero+NULL and also ARGC+ARGV can be zero+NULL. */ | |
500 | ||
501 | static void | |
502 | append_args (int *argcp, char ***argvp, int argc, char **argv) | |
503 | { | |
504 | int argi; | |
505 | ||
8d749320 | 506 | *argvp = XRESIZEVEC (char *, *argvp, (*argcp + argc + 1)); |
bb2ec1b3 TT |
507 | |
508 | for (argi = 0; argi < argc; argi++) | |
509 | (*argvp)[(*argcp)++] = xstrdup (argv[argi]); | |
510 | (*argvp)[(*argcp)] = NULL; | |
511 | } | |
512 | ||
6e41ddec JK |
513 | /* String for 'set compile-gcc' and 'show compile-gcc'. */ |
514 | static char *compile_gcc; | |
515 | ||
516 | /* Implement 'show compile-gcc'. */ | |
517 | ||
518 | static void | |
519 | show_compile_gcc (struct ui_file *file, int from_tty, | |
520 | struct cmd_list_element *c, const char *value) | |
521 | { | |
522 | fprintf_filtered (file, _("Compile command GCC driver filename is \"%s\".\n"), | |
523 | value); | |
524 | } | |
525 | ||
bb2ec1b3 TT |
526 | /* Return DW_AT_producer parsed for get_selected_frame () (if any). |
527 | Return NULL otherwise. | |
528 | ||
529 | GCC already filters its command-line arguments only for the suitable ones to | |
530 | put into DW_AT_producer - see GCC function gen_producer_string. */ | |
531 | ||
532 | static const char * | |
533 | get_selected_pc_producer_options (void) | |
534 | { | |
535 | CORE_ADDR pc = get_frame_pc (get_selected_frame (NULL)); | |
536 | struct compunit_symtab *symtab = find_pc_compunit_symtab (pc); | |
537 | const char *cs; | |
538 | ||
539 | if (symtab == NULL || symtab->producer == NULL | |
61012eef | 540 | || !startswith (symtab->producer, "GNU ")) |
bb2ec1b3 TT |
541 | return NULL; |
542 | ||
543 | cs = symtab->producer; | |
544 | while (*cs != 0 && *cs != '-') | |
f1735a53 | 545 | cs = skip_spaces (skip_to_space (cs)); |
bb2ec1b3 TT |
546 | if (*cs != '-') |
547 | return NULL; | |
548 | return cs; | |
549 | } | |
550 | ||
a7606d80 JK |
551 | /* Filter out unwanted options from *ARGCP and ARGV. */ |
552 | ||
553 | static void | |
554 | filter_args (int *argcp, char **argv) | |
555 | { | |
556 | char **destv; | |
557 | ||
558 | for (destv = argv; *argv != NULL; argv++) | |
559 | { | |
560 | /* -fpreprocessed may get in commonly from ccache. */ | |
561 | if (strcmp (*argv, "-fpreprocessed") == 0) | |
562 | { | |
563 | xfree (*argv); | |
564 | (*argcp)--; | |
565 | continue; | |
566 | } | |
567 | *destv++ = *argv; | |
568 | } | |
569 | *destv = NULL; | |
570 | } | |
571 | ||
e05cac70 PM |
572 | /* Produce final vector of GCC compilation options. |
573 | ||
574 | The first element of the combined argument vector are arguments | |
575 | relating to the target size ("-m64", "-m32" etc.). These are | |
576 | sourced from the inferior's architecture. | |
577 | ||
578 | The second element of the combined argument vector are arguments | |
579 | stored in the inferior DW_AT_producer section. If these are stored | |
580 | in the inferior (there is no guarantee that they are), they are | |
581 | added to the vector. | |
582 | ||
583 | The third element of the combined argument vector are argument | |
584 | supplied by the language implementation provided by | |
585 | compile-{lang}-support. These contain language specific arguments. | |
586 | ||
587 | The final element of the combined argument vector are arguments | |
588 | supplied by the "set compile-args" command. These are always | |
589 | appended last so as to override any of the arguments automatically | |
590 | generated above. */ | |
bb2ec1b3 TT |
591 | |
592 | static void | |
9cdfd9a2 | 593 | get_args (const compile_instance *compiler, struct gdbarch *gdbarch, |
bb2ec1b3 TT |
594 | int *argcp, char ***argvp) |
595 | { | |
596 | const char *cs_producer_options; | |
597 | int argc_compiler; | |
598 | char **argv_compiler; | |
599 | ||
600 | build_argc_argv (gdbarch_gcc_target_options (gdbarch), | |
601 | argcp, argvp); | |
602 | ||
603 | cs_producer_options = get_selected_pc_producer_options (); | |
604 | if (cs_producer_options != NULL) | |
605 | { | |
606 | int argc_producer; | |
607 | char **argv_producer; | |
608 | ||
609 | build_argc_argv (cs_producer_options, &argc_producer, &argv_producer); | |
a7606d80 | 610 | filter_args (&argc_producer, argv_producer); |
bb2ec1b3 TT |
611 | append_args (argcp, argvp, argc_producer, argv_producer); |
612 | freeargv (argv_producer); | |
613 | } | |
614 | ||
9cdfd9a2 | 615 | build_argc_argv (compiler->gcc_target_options ().c_str (), |
bb2ec1b3 TT |
616 | &argc_compiler, &argv_compiler); |
617 | append_args (argcp, argvp, argc_compiler, argv_compiler); | |
618 | freeargv (argv_compiler); | |
619 | ||
620 | append_args (argcp, argvp, compile_args_argc, compile_args_argv); | |
621 | } | |
622 | ||
bb2ec1b3 TT |
623 | /* A helper function suitable for use as the "print_callback" in the |
624 | compiler object. */ | |
625 | ||
626 | static void | |
627 | print_callback (void *ignore, const char *message) | |
628 | { | |
629 | fputs_filtered (message, gdb_stderr); | |
630 | } | |
631 | ||
632 | /* Process the compilation request. On success it returns the object | |
aaee65ae PA |
633 | and source file names. On an error condition, error () is |
634 | called. */ | |
bb2ec1b3 | 635 | |
aaee65ae | 636 | static compile_file_names |
851c9091 | 637 | compile_to_object (struct command_line *cmd, const char *cmd_string, |
aaee65ae | 638 | enum compile_i_scope_types scope) |
bb2ec1b3 | 639 | { |
bb2ec1b3 TT |
640 | const struct block *expr_block; |
641 | CORE_ADDR trash_pc, expr_pc; | |
642 | int argc; | |
643 | char **argv; | |
644 | int ok; | |
bb2ec1b3 | 645 | struct gdbarch *gdbarch = get_current_arch (); |
7d937cad | 646 | std::string triplet_rx; |
bb2ec1b3 TT |
647 | |
648 | if (!target_has_execution) | |
649 | error (_("The program must be running for the compile command to "\ | |
650 | "work.")); | |
651 | ||
652 | expr_block = get_expr_block_and_pc (&trash_pc); | |
653 | expr_pc = get_frame_address_in_block (get_selected_frame (NULL)); | |
654 | ||
655 | /* Set up instance and context for the compiler. */ | |
656 | if (current_language->la_get_compile_instance == NULL) | |
cdaec3f3 LM |
657 | error (_("No compiler support for language %s."), |
658 | current_language->la_name); | |
bb2ec1b3 | 659 | |
9cdfd9a2 KS |
660 | compile_instance *compiler_instance |
661 | = current_language->la_get_compile_instance (); | |
662 | std::unique_ptr<compile_instance> compiler (compiler_instance); | |
663 | compiler->set_print_callback (print_callback, NULL); | |
664 | compiler->set_scope (scope); | |
665 | compiler->set_block (expr_block); | |
bb2ec1b3 TT |
666 | |
667 | /* From the provided expression, build a scope to pass to the | |
668 | compiler. */ | |
aaee65ae | 669 | |
d7e74731 | 670 | string_file input_buf; |
aaee65ae PA |
671 | const char *input; |
672 | ||
bb2ec1b3 TT |
673 | if (cmd != NULL) |
674 | { | |
bb2ec1b3 TT |
675 | struct command_line *iter; |
676 | ||
12973681 | 677 | for (iter = cmd->body_list_0.get (); iter; iter = iter->next) |
bb2ec1b3 | 678 | { |
d7e74731 PA |
679 | input_buf.puts (iter->line); |
680 | input_buf.puts ("\n"); | |
bb2ec1b3 TT |
681 | } |
682 | ||
aaee65ae | 683 | input = input_buf.c_str (); |
bb2ec1b3 TT |
684 | } |
685 | else if (cmd_string != NULL) | |
851c9091 | 686 | input = cmd_string; |
bb2ec1b3 TT |
687 | else |
688 | error (_("Neither a simple expression, or a multi-line specified.")); | |
689 | ||
aaee65ae | 690 | std::string code |
9cdfd9a2 | 691 | = current_language->la_compute_program (compiler.get (), input, gdbarch, |
aaee65ae | 692 | expr_block, expr_pc); |
bb2ec1b3 | 693 | if (compile_debug) |
aaee65ae | 694 | fprintf_unfiltered (gdb_stdlog, "debug output:\n\n%s", code.c_str ()); |
bb2ec1b3 | 695 | |
9cdfd9a2 | 696 | compiler->set_verbose (compile_debug); |
71b30f27 | 697 | |
6e41ddec JK |
698 | if (compile_gcc[0] != 0) |
699 | { | |
9cdfd9a2 | 700 | if (compiler->version () < GCC_FE_VERSION_1) |
6e41ddec JK |
701 | error (_("Command 'set compile-gcc' requires GCC version 6 or higher " |
702 | "(libcc1 interface version 1 or higher)")); | |
703 | ||
9cdfd9a2 | 704 | compiler->set_driver_filename (compile_gcc); |
6e41ddec JK |
705 | } |
706 | else | |
707 | { | |
708 | const char *os_rx = osabi_triplet_regexp (gdbarch_osabi (gdbarch)); | |
709 | const char *arch_rx = gdbarch_gnu_triplet_regexp (gdbarch); | |
710 | ||
711 | /* Allow triplets with or without vendor set. */ | |
7d937cad | 712 | triplet_rx = std::string (arch_rx) + "(-[^-]*)?-" + os_rx; |
9cdfd9a2 | 713 | compiler->set_triplet_regexp (triplet_rx.c_str ()); |
6e41ddec | 714 | } |
bb2ec1b3 TT |
715 | |
716 | /* Set compiler command-line arguments. */ | |
9cdfd9a2 | 717 | get_args (compiler.get (), gdbarch, &argc, &argv); |
773a1edc | 718 | gdb_argv argv_holder (argv); |
bb2ec1b3 | 719 | |
9cdfd9a2 KS |
720 | gdb::unique_xmalloc_ptr<char> error_message; |
721 | error_message.reset (compiler->set_arguments (argc, argv, | |
722 | triplet_rx.c_str ())); | |
723 | ||
bb2ec1b3 | 724 | if (error_message != NULL) |
9cdfd9a2 | 725 | error ("%s", error_message.get ()); |
bb2ec1b3 TT |
726 | |
727 | if (compile_debug) | |
728 | { | |
729 | int argi; | |
730 | ||
a4063588 | 731 | fprintf_unfiltered (gdb_stdlog, "Passing %d compiler options:\n", argc); |
bb2ec1b3 | 732 | for (argi = 0; argi < argc; argi++) |
a4063588 | 733 | fprintf_unfiltered (gdb_stdlog, "Compiler option %d: <%s>\n", |
bb2ec1b3 TT |
734 | argi, argv[argi]); |
735 | } | |
736 | ||
aaee65ae | 737 | compile_file_names fnames = get_new_file_names (); |
bb2ec1b3 | 738 | |
b80cf838 TT |
739 | gdb::optional<gdb::unlinker> source_remover; |
740 | ||
d419f42d TT |
741 | { |
742 | gdb_file_up src = gdb_fopen_cloexec (fnames.source_file (), "w"); | |
743 | if (src == NULL) | |
744 | perror_with_name (_("Could not open source file for writing")); | |
b80cf838 TT |
745 | |
746 | source_remover.emplace (fnames.source_file ()); | |
747 | ||
d419f42d TT |
748 | if (fputs (code.c_str (), src.get ()) == EOF) |
749 | perror_with_name (_("Could not write to source file")); | |
750 | } | |
bb2ec1b3 TT |
751 | |
752 | if (compile_debug) | |
a4063588 | 753 | fprintf_unfiltered (gdb_stdlog, "source file produced: %s\n\n", |
aaee65ae | 754 | fnames.source_file ()); |
bb2ec1b3 TT |
755 | |
756 | /* Call the compiler and start the compilation process. */ | |
9cdfd9a2 KS |
757 | compiler->set_source_file (fnames.source_file ()); |
758 | ok = compiler->compile (fnames.object_file (), compile_debug); | |
e68c32d5 | 759 | if (!ok) |
bb2ec1b3 TT |
760 | error (_("Compilation failed.")); |
761 | ||
762 | if (compile_debug) | |
a4063588 | 763 | fprintf_unfiltered (gdb_stdlog, "object file produced: %s\n\n", |
aaee65ae | 764 | fnames.object_file ()); |
bb2ec1b3 | 765 | |
b80cf838 TT |
766 | /* Keep the source file. */ |
767 | source_remover->keep (); | |
aaee65ae | 768 | return fnames; |
bb2ec1b3 TT |
769 | } |
770 | ||
771 | /* The "compile" prefix command. */ | |
772 | ||
773 | static void | |
981a3fb3 | 774 | compile_command (const char *args, int from_tty) |
bb2ec1b3 TT |
775 | { |
776 | /* If a sub-command is not specified to the compile prefix command, | |
777 | assume it is a direct code compilation. */ | |
778 | compile_code_command (args, from_tty); | |
779 | } | |
780 | ||
781 | /* See compile.h. */ | |
782 | ||
783 | void | |
851c9091 | 784 | eval_compile_command (struct command_line *cmd, const char *cmd_string, |
5c65b58a | 785 | enum compile_i_scope_types scope, void *scope_data) |
bb2ec1b3 | 786 | { |
aaee65ae PA |
787 | struct compile_module *compile_module; |
788 | ||
789 | compile_file_names fnames = compile_to_object (cmd, cmd_string, scope); | |
bb2ec1b3 | 790 | |
b80cf838 TT |
791 | gdb::unlinker object_remover (fnames.object_file ()); |
792 | gdb::unlinker source_remover (fnames.source_file ()); | |
793 | ||
aaee65ae PA |
794 | compile_module = compile_object_load (fnames, scope, scope_data); |
795 | if (compile_module == NULL) | |
bb2ec1b3 | 796 | { |
aaee65ae PA |
797 | gdb_assert (scope == COMPILE_I_PRINT_ADDRESS_SCOPE); |
798 | eval_compile_command (cmd, cmd_string, | |
799 | COMPILE_I_PRINT_VALUE_SCOPE, scope_data); | |
800 | return; | |
bb2ec1b3 | 801 | } |
b80cf838 TT |
802 | |
803 | /* Keep the files. */ | |
804 | source_remover.keep (); | |
805 | object_remover.keep (); | |
806 | ||
aaee65ae | 807 | compile_object_run (compile_module); |
bb2ec1b3 TT |
808 | } |
809 | ||
810 | /* See compile/compile-internal.h. */ | |
811 | ||
8f84fb0e | 812 | std::string |
bb2ec1b3 TT |
813 | compile_register_name_mangled (struct gdbarch *gdbarch, int regnum) |
814 | { | |
815 | const char *regname = gdbarch_register_name (gdbarch, regnum); | |
816 | ||
8f84fb0e | 817 | return string_printf ("__%s", regname); |
bb2ec1b3 TT |
818 | } |
819 | ||
820 | /* See compile/compile-internal.h. */ | |
821 | ||
822 | int | |
823 | compile_register_name_demangle (struct gdbarch *gdbarch, | |
824 | const char *regname) | |
825 | { | |
826 | int regnum; | |
827 | ||
828 | if (regname[0] != '_' || regname[1] != '_') | |
829 | error (_("Invalid register name \"%s\"."), regname); | |
830 | regname += 2; | |
831 | ||
832 | for (regnum = 0; regnum < gdbarch_num_regs (gdbarch); regnum++) | |
833 | if (strcmp (regname, gdbarch_register_name (gdbarch, regnum)) == 0) | |
834 | return regnum; | |
835 | ||
836 | error (_("Cannot find gdbarch register \"%s\"."), regname); | |
837 | } | |
838 | ||
9cdfd9a2 KS |
839 | /* Forwards to the plug-in. */ |
840 | ||
841 | #define FORWARD(OP,...) (m_gcc_fe->ops->OP (m_gcc_fe, ##__VA_ARGS__)) | |
842 | ||
843 | /* See compile-internal.h. */ | |
844 | ||
845 | void | |
846 | compile_instance::set_print_callback | |
847 | (void (*print_function) (void *, const char *), void *datum) | |
848 | { | |
849 | FORWARD (set_print_callback, print_function, datum); | |
850 | } | |
851 | ||
852 | /* See compile-internal.h. */ | |
853 | ||
854 | unsigned int | |
855 | compile_instance::version () const | |
856 | { | |
857 | return m_gcc_fe->ops->version; | |
858 | } | |
859 | ||
860 | /* See compile-internal.h. */ | |
861 | ||
862 | void | |
863 | compile_instance::set_verbose (int level) | |
864 | { | |
865 | if (version () >= GCC_FE_VERSION_1) | |
866 | FORWARD (set_verbose, level); | |
867 | } | |
868 | ||
869 | /* See compile-internal.h. */ | |
870 | ||
871 | void | |
872 | compile_instance::set_driver_filename (const char *filename) | |
873 | { | |
874 | if (version () >= GCC_FE_VERSION_1) | |
875 | FORWARD (set_driver_filename, filename); | |
876 | } | |
877 | ||
878 | /* See compile-internal.h. */ | |
879 | ||
880 | void | |
881 | compile_instance::set_triplet_regexp (const char *regexp) | |
882 | { | |
883 | if (version () >= GCC_FE_VERSION_1) | |
884 | FORWARD (set_triplet_regexp, regexp); | |
885 | } | |
886 | ||
887 | /* See compile-internal.h. */ | |
888 | ||
889 | char * | |
890 | compile_instance::set_arguments (int argc, char **argv, const char *regexp) | |
891 | { | |
892 | if (version () >= GCC_FE_VERSION_1) | |
893 | return FORWARD (set_arguments, argc, argv); | |
894 | else | |
895 | return FORWARD (set_arguments_v0, regexp, argc, argv); | |
896 | } | |
897 | ||
898 | /* See compile-internal.h. */ | |
899 | ||
900 | void | |
901 | compile_instance::set_source_file (const char *filename) | |
902 | { | |
903 | FORWARD (set_source_file, filename); | |
904 | } | |
905 | ||
906 | /* See compile-internal.h. */ | |
907 | ||
908 | bool | |
909 | compile_instance::compile (const char *filename, int verbose_level) | |
910 | { | |
911 | if (version () >= GCC_FE_VERSION_1) | |
912 | return FORWARD (compile, filename); | |
913 | else | |
914 | return FORWARD (compile_v0, filename, verbose_level); | |
915 | } | |
916 | ||
917 | #undef FORWARD | |
918 | ||
919 | ||
bb2ec1b3 TT |
920 | void |
921 | _initialize_compile (void) | |
922 | { | |
923 | struct cmd_list_element *c = NULL; | |
924 | ||
925 | add_prefix_cmd ("compile", class_obscure, compile_command, | |
926 | _("\ | |
927 | Command to compile source code and inject it into the inferior."), | |
928 | &compile_command_list, "compile ", 1, &cmdlist); | |
929 | add_com_alias ("expression", "compile", class_obscure, 0); | |
930 | ||
931 | add_cmd ("code", class_obscure, compile_code_command, | |
932 | _("\ | |
933 | Compile, inject, and execute code.\n\ | |
934 | \n\ | |
935 | Usage: compile code [-r|-raw] [--] [CODE]\n\ | |
936 | -r|-raw: Suppress automatic 'void _gdb_expr () { CODE }' wrapping.\n\ | |
937 | --: Do not parse any options beyond this delimiter. All text to the\n\ | |
938 | right will be treated as source code.\n\ | |
939 | \n\ | |
940 | The source code may be specified as a simple one line expression, e.g.:\n\ | |
941 | \n\ | |
942 | compile code printf(\"Hello world\\n\");\n\ | |
943 | \n\ | |
36de76f9 JK |
944 | Alternatively, you can type a multiline expression by invoking\n\ |
945 | this command with no argument. GDB will then prompt for the\n\ | |
946 | expression interactively; type a line containing \"end\" to\n\ | |
947 | indicate the end of the expression."), | |
bb2ec1b3 TT |
948 | &compile_command_list); |
949 | ||
950 | c = add_cmd ("file", class_obscure, compile_file_command, | |
951 | _("\ | |
952 | Evaluate a file containing source code.\n\ | |
953 | \n\ | |
954 | Usage: compile file [-r|-raw] [filename]\n\ | |
955 | -r|-raw: Suppress automatic 'void _gdb_expr () { CODE }' wrapping."), | |
956 | &compile_command_list); | |
957 | set_cmd_completer (c, filename_completer); | |
958 | ||
36de76f9 JK |
959 | add_cmd ("print", class_obscure, compile_print_command, |
960 | _("\ | |
961 | Evaluate EXPR by using the compiler and print result.\n\ | |
962 | \n\ | |
963 | Usage: compile print[/FMT] [EXPR]\n\ | |
964 | \n\ | |
965 | The expression may be specified on the same line as the command, e.g.:\n\ | |
966 | \n\ | |
967 | compile print i\n\ | |
968 | \n\ | |
969 | Alternatively, you can type a multiline expression by invoking\n\ | |
970 | this command with no argument. GDB will then prompt for the\n\ | |
971 | expression interactively; type a line containing \"end\" to\n\ | |
972 | indicate the end of the expression.\n\ | |
973 | \n\ | |
974 | EXPR may be preceded with /FMT, where FMT is a format letter\n\ | |
975 | but no count or size letter (see \"x\" command)."), | |
976 | &compile_command_list); | |
977 | ||
bb2ec1b3 TT |
978 | add_setshow_boolean_cmd ("compile", class_maintenance, &compile_debug, _("\ |
979 | Set compile command debugging."), _("\ | |
980 | Show compile command debugging."), _("\ | |
981 | When on, compile command debugging is enabled."), | |
982 | NULL, show_compile_debug, | |
983 | &setdebuglist, &showdebuglist); | |
984 | ||
985 | add_setshow_string_cmd ("compile-args", class_support, | |
986 | &compile_args, | |
987 | _("Set compile command GCC command-line arguments"), | |
988 | _("Show compile command GCC command-line arguments"), | |
989 | _("\ | |
990 | Use options like -I (include file directory) or ABI settings.\n\ | |
991 | String quoting is parsed like in shell, for example:\n\ | |
992 | -mno-align-double \"-I/dir with a space/include\""), | |
993 | set_compile_args, show_compile_args, &setlist, &showlist); | |
994 | ||
995 | /* Override flags possibly coming from DW_AT_producer. */ | |
996 | compile_args = xstrdup ("-O0 -gdwarf-4" | |
4b62a76e | 997 | /* We use -fPIE Otherwise GDB would need to reserve space large enough for |
bb2ec1b3 TT |
998 | any object file in the inferior in advance to get the final address when |
999 | to link the object file to and additionally the default system linker | |
1000 | script would need to be modified so that one can specify there the | |
4b62a76e JK |
1001 | absolute target address. |
1002 | -fPIC is not used at is would require from GDB to generate .got. */ | |
1003 | " -fPIE" | |
3a9558c4 JK |
1004 | /* We want warnings, except for some commonly happening for GDB commands. */ |
1005 | " -Wall " | |
1006 | " -Wno-implicit-function-declaration" | |
1007 | " -Wno-unused-but-set-variable" | |
1008 | " -Wno-unused-variable" | |
bb2ec1b3 TT |
1009 | /* Override CU's possible -fstack-protector-strong. */ |
1010 | " -fno-stack-protector" | |
1011 | ); | |
1012 | set_compile_args (compile_args, 0, NULL); | |
6e41ddec JK |
1013 | |
1014 | add_setshow_optional_filename_cmd ("compile-gcc", class_support, | |
1015 | &compile_gcc, | |
1016 | _("Set compile command " | |
1017 | "GCC driver filename"), | |
1018 | _("Show compile command " | |
1019 | "GCC driver filename"), | |
1020 | _("\ | |
1021 | It should be absolute filename of the gcc executable.\n\ | |
1022 | If empty the default target triplet will be searched in $PATH."), | |
1023 | NULL, show_compile_gcc, &setlist, | |
1024 | &showlist); | |
1025 | compile_gcc = xstrdup (""); | |
bb2ec1b3 | 1026 | } |