| 1 | /* listing.c - maintain assembly listings |
| 2 | Copyright (C) 1991-2020 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GAS, the GNU Assembler. |
| 5 | |
| 6 | GAS is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 3, or (at your option) |
| 9 | any later version. |
| 10 | |
| 11 | GAS is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with GAS; see the file COPYING. If not, write to the Free |
| 18 | Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA |
| 19 | 02110-1301, USA. */ |
| 20 | |
| 21 | /* Contributed by Steve Chamberlain <sac@cygnus.com> |
| 22 | |
| 23 | A listing page looks like: |
| 24 | |
| 25 | LISTING_HEADER sourcefilename pagenumber |
| 26 | TITLE LINE |
| 27 | SUBTITLE LINE |
| 28 | linenumber address data source |
| 29 | linenumber address data source |
| 30 | linenumber address data source |
| 31 | linenumber address data source |
| 32 | |
| 33 | If not overridden, the listing commands are: |
| 34 | |
| 35 | .title "stuff" |
| 36 | Put "stuff" onto the title line |
| 37 | .sbttl "stuff" |
| 38 | Put stuff onto the subtitle line |
| 39 | |
| 40 | If these commands come within 10 lines of the top of the page, they |
| 41 | will affect the page they are on, as well as any subsequent page |
| 42 | |
| 43 | .eject |
| 44 | Throw a page |
| 45 | .list |
| 46 | Increment the enable listing counter |
| 47 | .nolist |
| 48 | Decrement the enable listing counter |
| 49 | |
| 50 | .psize Y[,X] |
| 51 | Set the paper size to X wide and Y high. Setting a psize Y of |
| 52 | zero will suppress form feeds except where demanded by .eject |
| 53 | |
| 54 | If the counter goes below zero, listing is suppressed. |
| 55 | |
| 56 | Listings are a maintained by read calling various listing_<foo> |
| 57 | functions. What happens most is that the macro NO_LISTING is not |
| 58 | defined (from the Makefile), then the macro LISTING_NEWLINE expands |
| 59 | into a call to listing_newline. The call is done from read.c, every |
| 60 | time it sees a newline, and -l is on the command line. |
| 61 | |
| 62 | The function listing_newline remembers the frag associated with the |
| 63 | newline, and creates a new frag - note that this is wasteful, but not |
| 64 | a big deal, since listing slows things down a lot anyway. The |
| 65 | function also remembers when the filename changes. |
| 66 | |
| 67 | When all the input has finished, and gas has had a chance to settle |
| 68 | down, the listing is output. This is done by running down the list of |
| 69 | frag/source file records, and opening the files as needed and printing |
| 70 | out the bytes and chars associated with them. |
| 71 | |
| 72 | The only things which the architecture can change about the listing |
| 73 | are defined in these macros: |
| 74 | |
| 75 | LISTING_HEADER The name of the architecture |
| 76 | LISTING_WORD_SIZE The make of the number of bytes in a word, this determines |
| 77 | the clumping of the output data. eg a value of |
| 78 | 2 makes words look like 1234 5678, whilst 1 |
| 79 | would make the same value look like 12 34 56 |
| 80 | 78 |
| 81 | LISTING_LHS_WIDTH Number of words of above size for the lhs |
| 82 | |
| 83 | LISTING_LHS_WIDTH_SECOND Number of words for the data on the lhs |
| 84 | for the second line |
| 85 | |
| 86 | LISTING_LHS_CONT_LINES Max number of lines to use up for a continuation |
| 87 | LISTING_RHS_WIDTH Number of chars from the input file to print |
| 88 | on a line. */ |
| 89 | |
| 90 | #include "as.h" |
| 91 | #include "filenames.h" |
| 92 | #include "safe-ctype.h" |
| 93 | #include "input-file.h" |
| 94 | #include "subsegs.h" |
| 95 | #include "bfdver.h" |
| 96 | #include <time.h> |
| 97 | #include <stdarg.h> |
| 98 | |
| 99 | #ifndef NO_LISTING |
| 100 | |
| 101 | #ifndef LISTING_HEADER |
| 102 | #define LISTING_HEADER "GAS LISTING" |
| 103 | #endif |
| 104 | #ifndef LISTING_WORD_SIZE |
| 105 | #define LISTING_WORD_SIZE 4 |
| 106 | #endif |
| 107 | #ifndef LISTING_LHS_WIDTH |
| 108 | #define LISTING_LHS_WIDTH ((LISTING_WORD_SIZE) > 4 ? 1 : 4 / (LISTING_WORD_SIZE)) |
| 109 | #endif |
| 110 | #ifndef LISTING_LHS_WIDTH_SECOND |
| 111 | #define LISTING_LHS_WIDTH_SECOND LISTING_LHS_WIDTH |
| 112 | #endif |
| 113 | #ifndef LISTING_RHS_WIDTH |
| 114 | #define LISTING_RHS_WIDTH 100 |
| 115 | #endif |
| 116 | #ifndef LISTING_LHS_CONT_LINES |
| 117 | #define LISTING_LHS_CONT_LINES 4 |
| 118 | #endif |
| 119 | #define MAX_DATELEN 30 |
| 120 | |
| 121 | /* This structure remembers which .s were used. */ |
| 122 | typedef struct file_info_struct |
| 123 | { |
| 124 | struct file_info_struct * next; |
| 125 | char * filename; |
| 126 | long pos; |
| 127 | unsigned int linenum; |
| 128 | int at_end; |
| 129 | } file_info_type; |
| 130 | |
| 131 | enum edict_enum |
| 132 | { |
| 133 | EDICT_NONE, |
| 134 | EDICT_SBTTL, |
| 135 | EDICT_TITLE, |
| 136 | EDICT_NOLIST, |
| 137 | EDICT_LIST, |
| 138 | EDICT_NOLIST_NEXT, |
| 139 | EDICT_EJECT |
| 140 | }; |
| 141 | |
| 142 | |
| 143 | struct list_message |
| 144 | { |
| 145 | char *message; |
| 146 | struct list_message *next; |
| 147 | }; |
| 148 | |
| 149 | /* This structure remembers which line from which file goes into which |
| 150 | frag. */ |
| 151 | struct list_info_struct |
| 152 | { |
| 153 | /* Frag which this line of source is nearest to. */ |
| 154 | fragS *frag; |
| 155 | |
| 156 | /* The actual line in the source file. */ |
| 157 | unsigned int line; |
| 158 | |
| 159 | /* Pointer to the file info struct for the file which this line |
| 160 | belongs to. */ |
| 161 | file_info_type *file; |
| 162 | |
| 163 | /* The expanded text of any macro that may have been executing. */ |
| 164 | char *line_contents; |
| 165 | |
| 166 | /* Next in list. */ |
| 167 | struct list_info_struct *next; |
| 168 | |
| 169 | /* Pointer to the file info struct for the high level language |
| 170 | source line that belongs here. */ |
| 171 | file_info_type *hll_file; |
| 172 | |
| 173 | /* High level language source line. */ |
| 174 | unsigned int hll_line; |
| 175 | |
| 176 | /* Pointers to linked list of messages associated with this line. */ |
| 177 | struct list_message *messages, *last_message; |
| 178 | |
| 179 | enum edict_enum edict; |
| 180 | char *edict_arg; |
| 181 | |
| 182 | /* Nonzero if this line is to be omitted because it contains |
| 183 | debugging information. This can become a flags field if we come |
| 184 | up with more information to store here. */ |
| 185 | int debugging; |
| 186 | }; |
| 187 | |
| 188 | typedef struct list_info_struct list_info_type; |
| 189 | |
| 190 | int listing_lhs_width = LISTING_LHS_WIDTH; |
| 191 | int listing_lhs_width_second = LISTING_LHS_WIDTH_SECOND; |
| 192 | int listing_lhs_cont_lines = LISTING_LHS_CONT_LINES; |
| 193 | int listing_rhs_width = LISTING_RHS_WIDTH; |
| 194 | |
| 195 | struct list_info_struct * listing_tail; |
| 196 | |
| 197 | static file_info_type * file_info_head; |
| 198 | static file_info_type * last_open_file_info; |
| 199 | static FILE * last_open_file; |
| 200 | static struct list_info_struct * head; |
| 201 | static int paper_width = 200; |
| 202 | static int paper_height = 60; |
| 203 | |
| 204 | extern int listing; |
| 205 | |
| 206 | /* File to output listings to. */ |
| 207 | static FILE *list_file; |
| 208 | |
| 209 | /* This static array is used to keep the text of data to be printed |
| 210 | before the start of the line. */ |
| 211 | |
| 212 | #define MAX_BYTES \ |
| 213 | (((LISTING_WORD_SIZE * 2) + 1) * listing_lhs_width \ |
| 214 | + ((((LISTING_WORD_SIZE * 2) + 1) * listing_lhs_width_second) \ |
| 215 | * listing_lhs_cont_lines) \ |
| 216 | + 20) |
| 217 | |
| 218 | static char *data_buffer; |
| 219 | |
| 220 | /* Prototypes. */ |
| 221 | static void listing_message (const char *, const char *); |
| 222 | static file_info_type *file_info (const char *); |
| 223 | static void new_frag (void); |
| 224 | static void listing_page (list_info_type *); |
| 225 | static unsigned int calc_hex (list_info_type *); |
| 226 | static void print_lines (list_info_type *, unsigned int, const char *, |
| 227 | unsigned int); |
| 228 | static void list_symbol_table (void); |
| 229 | static int debugging_pseudo (list_info_type *, const char *); |
| 230 | static void listing_listing (char *); |
| 231 | |
| 232 | static void |
| 233 | listing_message (const char *name, const char *message) |
| 234 | { |
| 235 | if (listing_tail != (list_info_type *) NULL) |
| 236 | { |
| 237 | char *n = concat (name, message, (char *) NULL); |
| 238 | struct list_message *lm = XNEW (struct list_message); |
| 239 | lm->message = n; |
| 240 | lm->next = NULL; |
| 241 | |
| 242 | if (listing_tail->last_message) |
| 243 | listing_tail->last_message->next = lm; |
| 244 | else |
| 245 | listing_tail->messages = lm; |
| 246 | listing_tail->last_message = lm; |
| 247 | } |
| 248 | } |
| 249 | |
| 250 | void |
| 251 | listing_warning (const char *message) |
| 252 | { |
| 253 | listing_message (_("Warning: "), message); |
| 254 | } |
| 255 | |
| 256 | void |
| 257 | listing_error (const char *message) |
| 258 | { |
| 259 | listing_message (_("Error: "), message); |
| 260 | } |
| 261 | |
| 262 | static file_info_type * |
| 263 | file_info (const char *file_name) |
| 264 | { |
| 265 | /* Find an entry with this file name. */ |
| 266 | file_info_type *p = file_info_head; |
| 267 | |
| 268 | while (p != (file_info_type *) NULL) |
| 269 | { |
| 270 | if (filename_cmp (p->filename, file_name) == 0) |
| 271 | return p; |
| 272 | p = p->next; |
| 273 | } |
| 274 | |
| 275 | /* Make new entry. */ |
| 276 | p = XNEW (file_info_type); |
| 277 | p->next = file_info_head; |
| 278 | file_info_head = p; |
| 279 | p->filename = xstrdup (file_name); |
| 280 | p->pos = 0; |
| 281 | p->linenum = 0; |
| 282 | p->at_end = 0; |
| 283 | |
| 284 | return p; |
| 285 | } |
| 286 | |
| 287 | static void |
| 288 | new_frag (void) |
| 289 | { |
| 290 | frag_wane (frag_now); |
| 291 | frag_new (0); |
| 292 | } |
| 293 | |
| 294 | void |
| 295 | listing_newline (char *ps) |
| 296 | { |
| 297 | const char *file; |
| 298 | unsigned int line; |
| 299 | static unsigned int last_line = 0xffff; |
| 300 | static const char *last_file = NULL; |
| 301 | list_info_type *new_i = NULL; |
| 302 | |
| 303 | if (listing == 0) |
| 304 | return; |
| 305 | |
| 306 | if (now_seg == absolute_section) |
| 307 | return; |
| 308 | |
| 309 | #ifdef OBJ_ELF |
| 310 | /* In ELF, anything in a section beginning with .debug or .line is |
| 311 | considered to be debugging information. This includes the |
| 312 | statement which switches us into the debugging section, which we |
| 313 | can only set after we are already in the debugging section. */ |
| 314 | if ((listing & LISTING_NODEBUG) != 0 |
| 315 | && listing_tail != NULL |
| 316 | && ! listing_tail->debugging) |
| 317 | { |
| 318 | const char *segname; |
| 319 | |
| 320 | segname = segment_name (now_seg); |
| 321 | if (strncmp (segname, ".debug", sizeof ".debug" - 1) == 0 |
| 322 | || strncmp (segname, ".line", sizeof ".line" - 1) == 0) |
| 323 | listing_tail->debugging = 1; |
| 324 | } |
| 325 | #endif |
| 326 | |
| 327 | /* PR 21977 - use the physical file name not the logical one unless high |
| 328 | level source files are being included in the listing. */ |
| 329 | if (listing & LISTING_HLL) |
| 330 | file = as_where (&line); |
| 331 | else |
| 332 | file = as_where_physical (&line); |
| 333 | |
| 334 | if (ps == NULL) |
| 335 | { |
| 336 | if (line == last_line |
| 337 | && !(last_file && file && filename_cmp (file, last_file))) |
| 338 | return; |
| 339 | |
| 340 | new_i = XNEW (list_info_type); |
| 341 | |
| 342 | /* Detect if we are reading from stdin by examining the file |
| 343 | name returned by as_where(). |
| 344 | |
| 345 | [FIXME: We rely upon the name in the strcmp below being the |
| 346 | same as the one used by input_scrub_new_file(), if that is |
| 347 | not true, then this code will fail]. |
| 348 | |
| 349 | If we are reading from stdin, then we need to save each input |
| 350 | line here (assuming of course that we actually have a line of |
| 351 | input to read), so that it can be displayed in the listing |
| 352 | that is produced at the end of the assembly. */ |
| 353 | if (strcmp (file, _("{standard input}")) == 0 |
| 354 | && input_line_pointer != NULL) |
| 355 | { |
| 356 | char *copy, *src, *dest; |
| 357 | int len; |
| 358 | int seen_quote = 0; |
| 359 | int seen_slash = 0; |
| 360 | |
| 361 | for (copy = input_line_pointer; |
| 362 | *copy && (seen_quote |
| 363 | || is_end_of_line [(unsigned char) *copy] != 1); |
| 364 | copy++) |
| 365 | { |
| 366 | if (seen_slash) |
| 367 | seen_slash = 0; |
| 368 | else if (*copy == '\\') |
| 369 | seen_slash = 1; |
| 370 | else if (*copy == '"') |
| 371 | seen_quote = !seen_quote; |
| 372 | } |
| 373 | |
| 374 | len = copy - input_line_pointer + 1; |
| 375 | |
| 376 | copy = XNEWVEC (char, len); |
| 377 | |
| 378 | src = input_line_pointer; |
| 379 | dest = copy; |
| 380 | |
| 381 | while (--len) |
| 382 | { |
| 383 | unsigned char c = *src++; |
| 384 | |
| 385 | /* Omit control characters in the listing. */ |
| 386 | if (!ISCNTRL (c)) |
| 387 | *dest++ = c; |
| 388 | } |
| 389 | |
| 390 | *dest = 0; |
| 391 | |
| 392 | new_i->line_contents = copy; |
| 393 | } |
| 394 | else |
| 395 | new_i->line_contents = NULL; |
| 396 | } |
| 397 | else |
| 398 | { |
| 399 | new_i = XNEW (list_info_type); |
| 400 | new_i->line_contents = ps; |
| 401 | } |
| 402 | |
| 403 | last_line = line; |
| 404 | last_file = file; |
| 405 | |
| 406 | new_frag (); |
| 407 | |
| 408 | if (listing_tail) |
| 409 | listing_tail->next = new_i; |
| 410 | else |
| 411 | head = new_i; |
| 412 | |
| 413 | listing_tail = new_i; |
| 414 | |
| 415 | new_i->frag = frag_now; |
| 416 | new_i->line = line; |
| 417 | new_i->file = file_info (file); |
| 418 | new_i->next = (list_info_type *) NULL; |
| 419 | new_i->messages = NULL; |
| 420 | new_i->last_message = NULL; |
| 421 | new_i->edict = EDICT_NONE; |
| 422 | new_i->hll_file = (file_info_type *) NULL; |
| 423 | new_i->hll_line = 0; |
| 424 | new_i->debugging = 0; |
| 425 | |
| 426 | new_frag (); |
| 427 | |
| 428 | #ifdef OBJ_ELF |
| 429 | /* In ELF, anything in a section beginning with .debug or .line is |
| 430 | considered to be debugging information. */ |
| 431 | if ((listing & LISTING_NODEBUG) != 0) |
| 432 | { |
| 433 | const char *segname; |
| 434 | |
| 435 | segname = segment_name (now_seg); |
| 436 | if (strncmp (segname, ".debug", sizeof ".debug" - 1) == 0 |
| 437 | || strncmp (segname, ".line", sizeof ".line" - 1) == 0) |
| 438 | new_i->debugging = 1; |
| 439 | } |
| 440 | #endif |
| 441 | } |
| 442 | |
| 443 | /* Attach all current frags to the previous line instead of the |
| 444 | current line. This is called by the MIPS backend when it discovers |
| 445 | that it needs to add some NOP instructions; the added NOP |
| 446 | instructions should go with the instruction that has the delay, not |
| 447 | with the new instruction. */ |
| 448 | |
| 449 | void |
| 450 | listing_prev_line (void) |
| 451 | { |
| 452 | list_info_type *l; |
| 453 | fragS *f; |
| 454 | |
| 455 | if (head == (list_info_type *) NULL |
| 456 | || head == listing_tail) |
| 457 | return; |
| 458 | |
| 459 | new_frag (); |
| 460 | |
| 461 | for (l = head; l->next != listing_tail; l = l->next) |
| 462 | ; |
| 463 | |
| 464 | for (f = frchain_now->frch_root; f != (fragS *) NULL; f = f->fr_next) |
| 465 | if (f->line == listing_tail) |
| 466 | f->line = l; |
| 467 | |
| 468 | listing_tail->frag = frag_now; |
| 469 | new_frag (); |
| 470 | } |
| 471 | |
| 472 | /* This function returns the next source line from the file supplied, |
| 473 | truncated to size. It appends a fake line to the end of each input |
| 474 | file to make using the returned buffer simpler. */ |
| 475 | |
| 476 | static const char * |
| 477 | buffer_line (file_info_type *file, char *line, unsigned int size) |
| 478 | { |
| 479 | unsigned int count = 0; |
| 480 | int c; |
| 481 | char *p = line; |
| 482 | |
| 483 | /* If we couldn't open the file, return an empty line. */ |
| 484 | if (file->at_end) |
| 485 | return ""; |
| 486 | |
| 487 | /* Check the cache and see if we last used this file. */ |
| 488 | if (!last_open_file_info || file != last_open_file_info) |
| 489 | { |
| 490 | if (last_open_file) |
| 491 | { |
| 492 | last_open_file_info->pos = ftell (last_open_file); |
| 493 | fclose (last_open_file); |
| 494 | } |
| 495 | |
| 496 | /* Open the file in the binary mode so that ftell above can |
| 497 | return a reliable value that we can feed to fseek below. */ |
| 498 | last_open_file_info = file; |
| 499 | last_open_file = fopen (file->filename, FOPEN_RB); |
| 500 | if (last_open_file == NULL) |
| 501 | { |
| 502 | file->at_end = 1; |
| 503 | return ""; |
| 504 | } |
| 505 | |
| 506 | /* Seek to where we were last time this file was open. */ |
| 507 | if (file->pos) |
| 508 | fseek (last_open_file, file->pos, SEEK_SET); |
| 509 | } |
| 510 | |
| 511 | /* Leave room for null. */ |
| 512 | size -= 1; |
| 513 | |
| 514 | c = fgetc (last_open_file); |
| 515 | |
| 516 | while (c != EOF && c != '\n' && c != '\r') |
| 517 | { |
| 518 | if (count < size) |
| 519 | *p++ = c; |
| 520 | count++; |
| 521 | |
| 522 | c = fgetc (last_open_file); |
| 523 | } |
| 524 | |
| 525 | /* If '\r' is followed by '\n', swallow that. Likewise, if '\n' |
| 526 | is followed by '\r', swallow that as well. */ |
| 527 | if (c == '\r' || c == '\n') |
| 528 | { |
| 529 | int next = fgetc (last_open_file); |
| 530 | |
| 531 | if ((c == '\r' && next != '\n') |
| 532 | || (c == '\n' && next != '\r')) |
| 533 | ungetc (next, last_open_file); |
| 534 | } |
| 535 | |
| 536 | if (c == EOF) |
| 537 | { |
| 538 | file->at_end = 1; |
| 539 | if (count + 2 < size) |
| 540 | { |
| 541 | *p++ = '.'; |
| 542 | *p++ = '.'; |
| 543 | *p++ = '.'; |
| 544 | } |
| 545 | } |
| 546 | file->linenum++; |
| 547 | *p++ = 0; |
| 548 | return line; |
| 549 | } |
| 550 | |
| 551 | |
| 552 | /* This function rewinds the requested file back to the line requested, |
| 553 | reads it in again into the buffer provided and then restores the file |
| 554 | back to its original location. */ |
| 555 | |
| 556 | static void |
| 557 | rebuffer_line (file_info_type * file, |
| 558 | unsigned int linenum, |
| 559 | char * buffer, |
| 560 | unsigned int size) |
| 561 | { |
| 562 | unsigned int count = 0; |
| 563 | unsigned int current_line; |
| 564 | char * p = buffer; |
| 565 | long pos; |
| 566 | long pos2; |
| 567 | int c; |
| 568 | bfd_boolean found = FALSE; |
| 569 | |
| 570 | /* Sanity checks. */ |
| 571 | if (file == NULL || buffer == NULL || size <= 1 || file->linenum <= linenum) |
| 572 | return; |
| 573 | |
| 574 | /* Check the cache and see if we last used this file. */ |
| 575 | if (last_open_file_info == NULL || file != last_open_file_info) |
| 576 | { |
| 577 | if (last_open_file) |
| 578 | { |
| 579 | last_open_file_info->pos = ftell (last_open_file); |
| 580 | fclose (last_open_file); |
| 581 | } |
| 582 | |
| 583 | /* Open the file in the binary mode so that ftell above can |
| 584 | return a reliable value that we can feed to fseek below. */ |
| 585 | last_open_file_info = file; |
| 586 | last_open_file = fopen (file->filename, FOPEN_RB); |
| 587 | if (last_open_file == NULL) |
| 588 | { |
| 589 | file->at_end = 1; |
| 590 | return; |
| 591 | } |
| 592 | |
| 593 | /* Seek to where we were last time this file was open. */ |
| 594 | if (file->pos) |
| 595 | fseek (last_open_file, file->pos, SEEK_SET); |
| 596 | } |
| 597 | |
| 598 | /* Remember where we are in the current file. */ |
| 599 | pos2 = pos = ftell (last_open_file); |
| 600 | if (pos < 3) |
| 601 | return; |
| 602 | current_line = file->linenum; |
| 603 | |
| 604 | /* Leave room for the nul at the end of the buffer. */ |
| 605 | size -= 1; |
| 606 | buffer[size] = 0; |
| 607 | |
| 608 | /* Increment the current line count by one. |
| 609 | This is to allow for the fact that we are searching for the |
| 610 | start of a previous line, but we do this by detecting end-of-line |
| 611 | character(s) not start-of-line characters. */ |
| 612 | ++ current_line; |
| 613 | |
| 614 | while (pos2 > 0 && ! found) |
| 615 | { |
| 616 | char * ptr; |
| 617 | |
| 618 | /* Move backwards through the file, looking for earlier lines. */ |
| 619 | pos2 = (long) size > pos2 ? 0 : pos2 - size; |
| 620 | fseek (last_open_file, pos2, SEEK_SET); |
| 621 | |
| 622 | /* Our caller has kindly provided us with a buffer, so we use it. */ |
| 623 | if (fread (buffer, 1, size, last_open_file) != size) |
| 624 | { |
| 625 | as_warn (_("unable to rebuffer file: %s\n"), file->filename); |
| 626 | return; |
| 627 | } |
| 628 | |
| 629 | for (ptr = buffer + size; ptr >= buffer; -- ptr) |
| 630 | { |
| 631 | if (*ptr == '\n') |
| 632 | { |
| 633 | -- current_line; |
| 634 | |
| 635 | if (current_line == linenum) |
| 636 | { |
| 637 | /* We have found the start of the line we seek. */ |
| 638 | found = TRUE; |
| 639 | |
| 640 | /* FIXME: We could skip the read-in-the-line code |
| 641 | below if we know that we already have the whole |
| 642 | line in the buffer. */ |
| 643 | |
| 644 | /* Advance pos2 to the newline character we have just located. */ |
| 645 | pos2 += (ptr - buffer); |
| 646 | |
| 647 | /* Skip the newline and, if present, the carriage return. */ |
| 648 | if (ptr + 1 == buffer + size) |
| 649 | { |
| 650 | ++pos2; |
| 651 | if (fgetc (last_open_file) == '\r') |
| 652 | ++ pos2; |
| 653 | } |
| 654 | else |
| 655 | pos2 += (ptr[1] == '\r' ? 2 : 1); |
| 656 | |
| 657 | /* Move the file pointer to this location. */ |
| 658 | fseek (last_open_file, pos2, SEEK_SET); |
| 659 | break; |
| 660 | } |
| 661 | } |
| 662 | } |
| 663 | } |
| 664 | |
| 665 | /* Read in the line. */ |
| 666 | c = fgetc (last_open_file); |
| 667 | |
| 668 | while (c != EOF && c != '\n' && c != '\r') |
| 669 | { |
| 670 | if (count < size) |
| 671 | *p++ = c; |
| 672 | count++; |
| 673 | |
| 674 | c = fgetc (last_open_file); |
| 675 | } |
| 676 | |
| 677 | /* If '\r' is followed by '\n', swallow that. Likewise, if '\n' |
| 678 | is followed by '\r', swallow that as well. */ |
| 679 | if (c == '\r' || c == '\n') |
| 680 | { |
| 681 | int next = fgetc (last_open_file); |
| 682 | |
| 683 | if ((c == '\r' && next != '\n') |
| 684 | || (c == '\n' && next != '\r')) |
| 685 | ungetc (next, last_open_file); |
| 686 | } |
| 687 | |
| 688 | /* Terminate the line. */ |
| 689 | *p++ = 0; |
| 690 | |
| 691 | /* Reset the file position. */ |
| 692 | fseek (last_open_file, pos, SEEK_SET); |
| 693 | } |
| 694 | |
| 695 | static const char *fn; |
| 696 | static unsigned int eject; /* Eject pending. */ |
| 697 | static unsigned int page; /* Current page number. */ |
| 698 | static const char *title; /* Current title. */ |
| 699 | static const char *subtitle; /* Current subtitle. */ |
| 700 | static unsigned int on_page; /* Number of lines printed on current page. */ |
| 701 | |
| 702 | static void |
| 703 | listing_page (list_info_type *list) |
| 704 | { |
| 705 | /* Grope around, see if we can see a title or subtitle edict coming up |
| 706 | soon. (we look down 10 lines of the page and see if it's there) */ |
| 707 | if ((eject || (on_page >= (unsigned int) paper_height)) |
| 708 | && paper_height != 0) |
| 709 | { |
| 710 | unsigned int c = 10; |
| 711 | int had_title = 0; |
| 712 | int had_subtitle = 0; |
| 713 | |
| 714 | page++; |
| 715 | |
| 716 | while (c != 0 && list) |
| 717 | { |
| 718 | if (list->edict == EDICT_SBTTL && !had_subtitle) |
| 719 | { |
| 720 | had_subtitle = 1; |
| 721 | subtitle = list->edict_arg; |
| 722 | } |
| 723 | if (list->edict == EDICT_TITLE && !had_title) |
| 724 | { |
| 725 | had_title = 1; |
| 726 | title = list->edict_arg; |
| 727 | } |
| 728 | list = list->next; |
| 729 | c--; |
| 730 | } |
| 731 | |
| 732 | if (page > 1) |
| 733 | { |
| 734 | fprintf (list_file, "\f"); |
| 735 | } |
| 736 | |
| 737 | fprintf (list_file, "%s %s \t\t\tpage %d\n", LISTING_HEADER, fn, page); |
| 738 | fprintf (list_file, "%s\n", title); |
| 739 | fprintf (list_file, "%s\n", subtitle); |
| 740 | on_page = 3; |
| 741 | eject = 0; |
| 742 | } |
| 743 | } |
| 744 | |
| 745 | /* Print a line into the list_file. Update the line count |
| 746 | and if necessary start a new page. */ |
| 747 | |
| 748 | static void |
| 749 | emit_line (list_info_type * list, const char * format, ...) |
| 750 | { |
| 751 | va_list args; |
| 752 | |
| 753 | va_start (args, format); |
| 754 | |
| 755 | vfprintf (list_file, format, args); |
| 756 | on_page++; |
| 757 | listing_page (list); |
| 758 | |
| 759 | va_end (args); |
| 760 | } |
| 761 | |
| 762 | static unsigned int |
| 763 | calc_hex (list_info_type *list) |
| 764 | { |
| 765 | int data_buffer_size; |
| 766 | list_info_type *first = list; |
| 767 | unsigned int address = ~(unsigned int) 0; |
| 768 | fragS *frag; |
| 769 | fragS *frag_ptr; |
| 770 | unsigned int octet_in_frag; |
| 771 | |
| 772 | /* Find first frag which says it belongs to this line. */ |
| 773 | frag = list->frag; |
| 774 | while (frag && frag->line != list) |
| 775 | frag = frag->fr_next; |
| 776 | |
| 777 | frag_ptr = frag; |
| 778 | |
| 779 | data_buffer_size = 0; |
| 780 | |
| 781 | /* Dump all the frags which belong to this line. */ |
| 782 | while (frag_ptr != (fragS *) NULL && frag_ptr->line == first) |
| 783 | { |
| 784 | /* Print as many bytes from the fixed part as is sensible. */ |
| 785 | octet_in_frag = 0; |
| 786 | while (octet_in_frag < frag_ptr->fr_fix |
| 787 | && data_buffer_size < MAX_BYTES - 3) |
| 788 | { |
| 789 | if (address == ~(unsigned int) 0) |
| 790 | address = frag_ptr->fr_address / OCTETS_PER_BYTE; |
| 791 | |
| 792 | sprintf (data_buffer + data_buffer_size, |
| 793 | "%02X", |
| 794 | (frag_ptr->fr_literal[octet_in_frag]) & 0xff); |
| 795 | data_buffer_size += 2; |
| 796 | octet_in_frag++; |
| 797 | } |
| 798 | if (frag_ptr->fr_type == rs_fill) |
| 799 | { |
| 800 | unsigned int var_rep_max = octet_in_frag; |
| 801 | unsigned int var_rep_idx = octet_in_frag; |
| 802 | |
| 803 | /* Print as many bytes from the variable part as is sensible. */ |
| 804 | while ((octet_in_frag |
| 805 | < frag_ptr->fr_fix + frag_ptr->fr_var * frag_ptr->fr_offset) |
| 806 | && data_buffer_size < MAX_BYTES - 3) |
| 807 | { |
| 808 | if (address == ~(unsigned int) 0) |
| 809 | address = frag_ptr->fr_address / OCTETS_PER_BYTE; |
| 810 | |
| 811 | sprintf (data_buffer + data_buffer_size, |
| 812 | "%02X", |
| 813 | (frag_ptr->fr_literal[var_rep_idx]) & 0xff); |
| 814 | data_buffer_size += 2; |
| 815 | |
| 816 | var_rep_idx++; |
| 817 | octet_in_frag++; |
| 818 | |
| 819 | if (var_rep_idx >= frag_ptr->fr_fix + frag_ptr->fr_var) |
| 820 | var_rep_idx = var_rep_max; |
| 821 | } |
| 822 | } |
| 823 | |
| 824 | frag_ptr = frag_ptr->fr_next; |
| 825 | } |
| 826 | data_buffer[data_buffer_size] = '\0'; |
| 827 | return address; |
| 828 | } |
| 829 | |
| 830 | static void |
| 831 | print_lines (list_info_type *list, unsigned int lineno, |
| 832 | const char *string, unsigned int address) |
| 833 | { |
| 834 | unsigned int idx; |
| 835 | unsigned int nchars; |
| 836 | unsigned int lines; |
| 837 | unsigned int octet_in_word = 0; |
| 838 | char *src = data_buffer; |
| 839 | int cur; |
| 840 | struct list_message *msg; |
| 841 | |
| 842 | /* Print the stuff on the first line. */ |
| 843 | listing_page (list); |
| 844 | nchars = (LISTING_WORD_SIZE * 2 + 1) * listing_lhs_width; |
| 845 | |
| 846 | /* Print the hex for the first line. */ |
| 847 | if (address == ~(unsigned int) 0) |
| 848 | { |
| 849 | fprintf (list_file, "% 4d ", lineno); |
| 850 | for (idx = 0; idx < nchars; idx++) |
| 851 | fprintf (list_file, " "); |
| 852 | |
| 853 | emit_line (NULL, "\t%s\n", string ? string : ""); |
| 854 | return; |
| 855 | } |
| 856 | |
| 857 | if (had_errors ()) |
| 858 | fprintf (list_file, "% 4d ???? ", lineno); |
| 859 | else |
| 860 | fprintf (list_file, "% 4d %04x ", lineno, address); |
| 861 | |
| 862 | /* And the data to go along with it. */ |
| 863 | idx = 0; |
| 864 | cur = 0; |
| 865 | while (src[cur] && idx < nchars) |
| 866 | { |
| 867 | int offset; |
| 868 | offset = cur; |
| 869 | fprintf (list_file, "%c%c", src[offset], src[offset + 1]); |
| 870 | cur += 2; |
| 871 | octet_in_word++; |
| 872 | |
| 873 | if (octet_in_word == LISTING_WORD_SIZE) |
| 874 | { |
| 875 | fprintf (list_file, " "); |
| 876 | idx++; |
| 877 | octet_in_word = 0; |
| 878 | } |
| 879 | |
| 880 | idx += 2; |
| 881 | } |
| 882 | |
| 883 | for (; idx < nchars; idx++) |
| 884 | fprintf (list_file, " "); |
| 885 | |
| 886 | emit_line (list, "\t%s\n", string ? string : ""); |
| 887 | |
| 888 | for (msg = list->messages; msg; msg = msg->next) |
| 889 | emit_line (list, "**** %s\n", msg->message); |
| 890 | |
| 891 | for (lines = 0; |
| 892 | lines < (unsigned int) listing_lhs_cont_lines |
| 893 | && src[cur]; |
| 894 | lines++) |
| 895 | { |
| 896 | nchars = ((LISTING_WORD_SIZE * 2) + 1) * listing_lhs_width_second - 1; |
| 897 | idx = 0; |
| 898 | |
| 899 | /* Print any more lines of data, but more compactly. */ |
| 900 | fprintf (list_file, "% 4d ", lineno); |
| 901 | |
| 902 | while (src[cur] && idx < nchars) |
| 903 | { |
| 904 | int offset; |
| 905 | offset = cur; |
| 906 | fprintf (list_file, "%c%c", src[offset], src[offset + 1]); |
| 907 | cur += 2; |
| 908 | idx += 2; |
| 909 | octet_in_word++; |
| 910 | |
| 911 | if (octet_in_word == LISTING_WORD_SIZE) |
| 912 | { |
| 913 | fprintf (list_file, " "); |
| 914 | idx++; |
| 915 | octet_in_word = 0; |
| 916 | } |
| 917 | } |
| 918 | |
| 919 | emit_line (list, "\n"); |
| 920 | } |
| 921 | } |
| 922 | |
| 923 | static void |
| 924 | list_symbol_table (void) |
| 925 | { |
| 926 | extern symbolS *symbol_rootP; |
| 927 | int got_some = 0; |
| 928 | |
| 929 | symbolS *ptr; |
| 930 | eject = 1; |
| 931 | listing_page (NULL); |
| 932 | |
| 933 | for (ptr = symbol_rootP; ptr != (symbolS *) NULL; ptr = symbol_next (ptr)) |
| 934 | { |
| 935 | if (SEG_NORMAL (S_GET_SEGMENT (ptr)) |
| 936 | || S_GET_SEGMENT (ptr) == absolute_section) |
| 937 | { |
| 938 | /* Don't report section symbols. They are not interesting. */ |
| 939 | if (symbol_section_p (ptr)) |
| 940 | continue; |
| 941 | |
| 942 | if (S_GET_NAME (ptr)) |
| 943 | { |
| 944 | char buf[30], fmt[8]; |
| 945 | valueT val = S_GET_VALUE (ptr); |
| 946 | |
| 947 | /* @@ Note that this is dependent on the compilation options, |
| 948 | not solely on the target characteristics. */ |
| 949 | if (sizeof (val) == 4 && sizeof (int) == 4) |
| 950 | sprintf (buf, "%08lx", (unsigned long) val); |
| 951 | else if (sizeof (val) <= sizeof (unsigned long)) |
| 952 | { |
| 953 | sprintf (fmt, "%%0%lulx", |
| 954 | (unsigned long) (sizeof (val) * 2)); |
| 955 | sprintf (buf, fmt, (unsigned long) val); |
| 956 | } |
| 957 | #if defined (BFD64) |
| 958 | else if (sizeof (val) > 4) |
| 959 | sprintf_vma (buf, val); |
| 960 | #endif |
| 961 | else |
| 962 | abort (); |
| 963 | |
| 964 | if (!got_some) |
| 965 | { |
| 966 | fprintf (list_file, "DEFINED SYMBOLS\n"); |
| 967 | on_page++; |
| 968 | got_some = 1; |
| 969 | } |
| 970 | |
| 971 | if (symbol_get_frag (ptr) && symbol_get_frag (ptr)->line) |
| 972 | { |
| 973 | fprintf (list_file, "%20s:%-5d %s:%s %s\n", |
| 974 | symbol_get_frag (ptr)->line->file->filename, |
| 975 | symbol_get_frag (ptr)->line->line, |
| 976 | segment_name (S_GET_SEGMENT (ptr)), |
| 977 | buf, S_GET_NAME (ptr)); |
| 978 | } |
| 979 | else |
| 980 | { |
| 981 | fprintf (list_file, "%33s:%s %s\n", |
| 982 | segment_name (S_GET_SEGMENT (ptr)), |
| 983 | buf, S_GET_NAME (ptr)); |
| 984 | } |
| 985 | |
| 986 | on_page++; |
| 987 | listing_page (NULL); |
| 988 | } |
| 989 | } |
| 990 | |
| 991 | } |
| 992 | if (!got_some) |
| 993 | { |
| 994 | fprintf (list_file, "NO DEFINED SYMBOLS\n"); |
| 995 | on_page++; |
| 996 | } |
| 997 | emit_line (NULL, "\n"); |
| 998 | |
| 999 | got_some = 0; |
| 1000 | |
| 1001 | for (ptr = symbol_rootP; ptr != (symbolS *) NULL; ptr = symbol_next (ptr)) |
| 1002 | { |
| 1003 | if (S_GET_NAME (ptr) && strlen (S_GET_NAME (ptr)) != 0) |
| 1004 | { |
| 1005 | if (S_GET_SEGMENT (ptr) == undefined_section) |
| 1006 | { |
| 1007 | if (!got_some) |
| 1008 | { |
| 1009 | got_some = 1; |
| 1010 | |
| 1011 | emit_line (NULL, "UNDEFINED SYMBOLS\n"); |
| 1012 | } |
| 1013 | |
| 1014 | emit_line (NULL, "%s\n", S_GET_NAME (ptr)); |
| 1015 | } |
| 1016 | } |
| 1017 | } |
| 1018 | |
| 1019 | if (!got_some) |
| 1020 | emit_line (NULL, "NO UNDEFINED SYMBOLS\n"); |
| 1021 | } |
| 1022 | |
| 1023 | typedef struct cached_line |
| 1024 | { |
| 1025 | file_info_type * file; |
| 1026 | unsigned int line; |
| 1027 | char buffer [LISTING_RHS_WIDTH]; |
| 1028 | } cached_line; |
| 1029 | |
| 1030 | static void |
| 1031 | print_source (file_info_type * current_file, |
| 1032 | list_info_type * list, |
| 1033 | unsigned int width) |
| 1034 | { |
| 1035 | #define NUM_CACHE_LINES 3 |
| 1036 | static cached_line cached_lines[NUM_CACHE_LINES]; |
| 1037 | static int next_free_line = 0; |
| 1038 | cached_line * cache = NULL; |
| 1039 | |
| 1040 | if (current_file->linenum > list->hll_line |
| 1041 | && list->hll_line > 0) |
| 1042 | { |
| 1043 | /* This can happen with modern optimizing compilers. The source |
| 1044 | lines from the high level language input program are split up |
| 1045 | and interleaved, meaning the line number we want to display |
| 1046 | (list->hll_line) can have already been displayed. We have |
| 1047 | three choices: |
| 1048 | |
| 1049 | a. Do nothing, since we have already displayed the source |
| 1050 | line. This was the old behaviour. |
| 1051 | |
| 1052 | b. Display the particular line requested again, but only |
| 1053 | that line. This is the new behaviour. |
| 1054 | |
| 1055 | c. Display the particular line requested again and reset |
| 1056 | the current_file->line_num value so that we redisplay |
| 1057 | all the following lines as well the next time we |
| 1058 | encounter a larger line number. */ |
| 1059 | int i; |
| 1060 | |
| 1061 | /* Check the cache, maybe we already have the line saved. */ |
| 1062 | for (i = 0; i < NUM_CACHE_LINES; i++) |
| 1063 | if (cached_lines[i].file == current_file |
| 1064 | && cached_lines[i].line == list->hll_line) |
| 1065 | { |
| 1066 | cache = cached_lines + i; |
| 1067 | break; |
| 1068 | } |
| 1069 | |
| 1070 | if (i == NUM_CACHE_LINES) |
| 1071 | { |
| 1072 | cache = cached_lines + next_free_line; |
| 1073 | next_free_line ++; |
| 1074 | if (next_free_line == NUM_CACHE_LINES) |
| 1075 | next_free_line = 0; |
| 1076 | |
| 1077 | cache->file = current_file; |
| 1078 | cache->line = list->hll_line; |
| 1079 | cache->buffer[0] = 0; |
| 1080 | rebuffer_line (current_file, cache->line, cache->buffer, width); |
| 1081 | } |
| 1082 | |
| 1083 | emit_line (list, "%4u:%-13s **** %s\n", |
| 1084 | cache->line, cache->file->filename, cache->buffer); |
| 1085 | return; |
| 1086 | } |
| 1087 | |
| 1088 | if (!current_file->at_end) |
| 1089 | { |
| 1090 | int num_lines_shown = 0; |
| 1091 | |
| 1092 | while (current_file->linenum < list->hll_line |
| 1093 | && !current_file->at_end) |
| 1094 | { |
| 1095 | const char *p; |
| 1096 | |
| 1097 | cache = cached_lines + next_free_line; |
| 1098 | cache->file = current_file; |
| 1099 | cache->line = current_file->linenum + 1; |
| 1100 | cache->buffer[0] = 0; |
| 1101 | p = buffer_line (current_file, cache->buffer, width); |
| 1102 | |
| 1103 | /* Cache optimization: If printing a group of lines |
| 1104 | cache the first and last lines in the group. */ |
| 1105 | if (num_lines_shown == 0) |
| 1106 | { |
| 1107 | next_free_line ++; |
| 1108 | if (next_free_line == NUM_CACHE_LINES) |
| 1109 | next_free_line = 0; |
| 1110 | } |
| 1111 | |
| 1112 | emit_line (list, "%4u:%-13s **** %s\n", |
| 1113 | cache->line, cache->file->filename, p); |
| 1114 | num_lines_shown ++; |
| 1115 | } |
| 1116 | } |
| 1117 | } |
| 1118 | |
| 1119 | /* Sometimes the user doesn't want to be bothered by the debugging |
| 1120 | records inserted by the compiler, see if the line is suspicious. */ |
| 1121 | |
| 1122 | static int |
| 1123 | debugging_pseudo (list_info_type *list, const char *line) |
| 1124 | { |
| 1125 | #ifdef OBJ_ELF |
| 1126 | static int in_debug; |
| 1127 | int was_debug; |
| 1128 | #endif |
| 1129 | |
| 1130 | if (list->debugging) |
| 1131 | { |
| 1132 | #ifdef OBJ_ELF |
| 1133 | in_debug = 1; |
| 1134 | #endif |
| 1135 | return 1; |
| 1136 | } |
| 1137 | #ifdef OBJ_ELF |
| 1138 | was_debug = in_debug; |
| 1139 | in_debug = 0; |
| 1140 | #endif |
| 1141 | |
| 1142 | while (ISSPACE (*line)) |
| 1143 | line++; |
| 1144 | |
| 1145 | if (*line != '.') |
| 1146 | { |
| 1147 | #ifdef OBJ_ELF |
| 1148 | /* The ELF compiler sometimes emits blank lines after switching |
| 1149 | out of a debugging section. If the next line drops us back |
| 1150 | into debugging information, then don't print the blank line. |
| 1151 | This is a hack for a particular compiler behaviour, not a |
| 1152 | general case. */ |
| 1153 | if (was_debug |
| 1154 | && *line == '\0' |
| 1155 | && list->next != NULL |
| 1156 | && list->next->debugging) |
| 1157 | { |
| 1158 | in_debug = 1; |
| 1159 | return 1; |
| 1160 | } |
| 1161 | #endif |
| 1162 | |
| 1163 | return 0; |
| 1164 | } |
| 1165 | |
| 1166 | line++; |
| 1167 | |
| 1168 | if (strncmp (line, "def", 3) == 0) |
| 1169 | return 1; |
| 1170 | if (strncmp (line, "val", 3) == 0) |
| 1171 | return 1; |
| 1172 | if (strncmp (line, "scl", 3) == 0) |
| 1173 | return 1; |
| 1174 | if (strncmp (line, "line", 4) == 0) |
| 1175 | return 1; |
| 1176 | if (strncmp (line, "endef", 5) == 0) |
| 1177 | return 1; |
| 1178 | if (strncmp (line, "ln", 2) == 0) |
| 1179 | return 1; |
| 1180 | if (strncmp (line, "type", 4) == 0) |
| 1181 | return 1; |
| 1182 | if (strncmp (line, "size", 4) == 0) |
| 1183 | return 1; |
| 1184 | if (strncmp (line, "dim", 3) == 0) |
| 1185 | return 1; |
| 1186 | if (strncmp (line, "tag", 3) == 0) |
| 1187 | return 1; |
| 1188 | if (strncmp (line, "stabs", 5) == 0) |
| 1189 | return 1; |
| 1190 | if (strncmp (line, "stabn", 5) == 0) |
| 1191 | return 1; |
| 1192 | |
| 1193 | return 0; |
| 1194 | } |
| 1195 | |
| 1196 | static void |
| 1197 | listing_listing (char *name ATTRIBUTE_UNUSED) |
| 1198 | { |
| 1199 | list_info_type *list = head; |
| 1200 | file_info_type *current_hll_file = (file_info_type *) NULL; |
| 1201 | char *buffer; |
| 1202 | const char *p; |
| 1203 | int show_listing = 1; |
| 1204 | unsigned int width; |
| 1205 | |
| 1206 | buffer = XNEWVEC (char, listing_rhs_width); |
| 1207 | data_buffer = XNEWVEC (char, MAX_BYTES); |
| 1208 | eject = 1; |
| 1209 | list = head->next; |
| 1210 | |
| 1211 | while (list) |
| 1212 | { |
| 1213 | unsigned int list_line; |
| 1214 | |
| 1215 | width = listing_rhs_width > paper_width ? paper_width : |
| 1216 | listing_rhs_width; |
| 1217 | |
| 1218 | list_line = list->line; |
| 1219 | switch (list->edict) |
| 1220 | { |
| 1221 | case EDICT_LIST: |
| 1222 | /* Skip all lines up to the current. */ |
| 1223 | list_line--; |
| 1224 | break; |
| 1225 | case EDICT_NOLIST: |
| 1226 | show_listing--; |
| 1227 | break; |
| 1228 | case EDICT_NOLIST_NEXT: |
| 1229 | if (show_listing == 0) |
| 1230 | list_line--; |
| 1231 | break; |
| 1232 | case EDICT_EJECT: |
| 1233 | break; |
| 1234 | case EDICT_NONE: |
| 1235 | break; |
| 1236 | case EDICT_TITLE: |
| 1237 | title = list->edict_arg; |
| 1238 | break; |
| 1239 | case EDICT_SBTTL: |
| 1240 | subtitle = list->edict_arg; |
| 1241 | break; |
| 1242 | default: |
| 1243 | abort (); |
| 1244 | } |
| 1245 | |
| 1246 | if (show_listing <= 0) |
| 1247 | { |
| 1248 | while (list->file->linenum < list_line |
| 1249 | && !list->file->at_end) |
| 1250 | p = buffer_line (list->file, buffer, width); |
| 1251 | } |
| 1252 | |
| 1253 | if (list->edict == EDICT_LIST |
| 1254 | || (list->edict == EDICT_NOLIST_NEXT && show_listing == 0)) |
| 1255 | { |
| 1256 | /* Enable listing for the single line that caused the enable. */ |
| 1257 | list_line++; |
| 1258 | show_listing++; |
| 1259 | } |
| 1260 | |
| 1261 | if (show_listing > 0) |
| 1262 | { |
| 1263 | /* Scan down the list and print all the stuff which can be done |
| 1264 | with this line (or lines). */ |
| 1265 | if (list->hll_file) |
| 1266 | current_hll_file = list->hll_file; |
| 1267 | |
| 1268 | if (current_hll_file && list->hll_line && (listing & LISTING_HLL)) |
| 1269 | print_source (current_hll_file, list, width); |
| 1270 | |
| 1271 | if (list->line_contents) |
| 1272 | { |
| 1273 | if (!((listing & LISTING_NODEBUG) |
| 1274 | && debugging_pseudo (list, list->line_contents))) |
| 1275 | print_lines (list, |
| 1276 | list->file->linenum == 0 ? list->line : list->file->linenum, |
| 1277 | list->line_contents, calc_hex (list)); |
| 1278 | |
| 1279 | free (list->line_contents); |
| 1280 | list->line_contents = NULL; |
| 1281 | } |
| 1282 | else |
| 1283 | { |
| 1284 | while (list->file->linenum < list_line |
| 1285 | && !list->file->at_end) |
| 1286 | { |
| 1287 | unsigned int address; |
| 1288 | |
| 1289 | p = buffer_line (list->file, buffer, width); |
| 1290 | |
| 1291 | if (list->file->linenum < list_line) |
| 1292 | address = ~(unsigned int) 0; |
| 1293 | else |
| 1294 | address = calc_hex (list); |
| 1295 | |
| 1296 | if (!((listing & LISTING_NODEBUG) |
| 1297 | && debugging_pseudo (list, p))) |
| 1298 | print_lines (list, list->file->linenum, p, address); |
| 1299 | } |
| 1300 | } |
| 1301 | |
| 1302 | if (list->edict == EDICT_EJECT) |
| 1303 | eject = 1; |
| 1304 | } |
| 1305 | |
| 1306 | if (list->edict == EDICT_NOLIST_NEXT && show_listing == 1) |
| 1307 | --show_listing; |
| 1308 | |
| 1309 | list = list->next; |
| 1310 | } |
| 1311 | |
| 1312 | free (buffer); |
| 1313 | free (data_buffer); |
| 1314 | data_buffer = NULL; |
| 1315 | } |
| 1316 | |
| 1317 | /* Print time stamp in ISO format: yyyy-mm-ddThh:mm:ss.ss+/-zzzz. */ |
| 1318 | |
| 1319 | static void |
| 1320 | print_timestamp (void) |
| 1321 | { |
| 1322 | const time_t now = time (NULL); |
| 1323 | struct tm * timestamp; |
| 1324 | char stampstr[MAX_DATELEN]; |
| 1325 | |
| 1326 | /* Any portable way to obtain subsecond values??? */ |
| 1327 | timestamp = localtime (&now); |
| 1328 | strftime (stampstr, MAX_DATELEN, "%Y-%m-%dT%H:%M:%S.000%z", timestamp); |
| 1329 | fprintf (list_file, _("\n time stamp \t: %s\n\n"), stampstr); |
| 1330 | } |
| 1331 | |
| 1332 | static void |
| 1333 | print_single_option (char * opt, int *pos) |
| 1334 | { |
| 1335 | int opt_len = strlen (opt); |
| 1336 | |
| 1337 | if ((*pos + opt_len) < paper_width) |
| 1338 | { |
| 1339 | fprintf (list_file, _("%s "), opt); |
| 1340 | *pos = *pos + opt_len; |
| 1341 | } |
| 1342 | else |
| 1343 | { |
| 1344 | fprintf (list_file, _("\n\t%s "), opt); |
| 1345 | *pos = opt_len; |
| 1346 | } |
| 1347 | } |
| 1348 | |
| 1349 | /* Print options passed to as. */ |
| 1350 | |
| 1351 | static void |
| 1352 | print_options (char ** argv) |
| 1353 | { |
| 1354 | const char *field_name = _("\n options passed\t: "); |
| 1355 | int pos = strlen (field_name); |
| 1356 | char **p; |
| 1357 | |
| 1358 | fputs (field_name, list_file); |
| 1359 | for (p = &argv[1]; *p != NULL; p++) |
| 1360 | if (**p == '-') |
| 1361 | { |
| 1362 | /* Ignore these. */ |
| 1363 | if (strcmp (*p, "-o") == 0) |
| 1364 | { |
| 1365 | if (p[1] != NULL) |
| 1366 | p++; |
| 1367 | continue; |
| 1368 | } |
| 1369 | if (strcmp (*p, "-v") == 0) |
| 1370 | continue; |
| 1371 | |
| 1372 | print_single_option (*p, &pos); |
| 1373 | } |
| 1374 | } |
| 1375 | |
| 1376 | /* Print a first section with basic info like file names, as version, |
| 1377 | options passed, target, and timestamp. |
| 1378 | The format of this section is as follows: |
| 1379 | |
| 1380 | AS VERSION |
| 1381 | |
| 1382 | fieldname TAB ':' fieldcontents |
| 1383 | { TAB fieldcontents-cont } */ |
| 1384 | |
| 1385 | static void |
| 1386 | listing_general_info (char ** argv) |
| 1387 | { |
| 1388 | /* Print the stuff on the first line. */ |
| 1389 | eject = 1; |
| 1390 | listing_page (NULL); |
| 1391 | |
| 1392 | fprintf (list_file, |
| 1393 | _(" GNU assembler version %s (%s)\n\t using BFD version %s."), |
| 1394 | VERSION, TARGET_ALIAS, BFD_VERSION_STRING); |
| 1395 | print_options (argv); |
| 1396 | fprintf (list_file, _("\n input file \t: %s"), fn); |
| 1397 | fprintf (list_file, _("\n output file \t: %s"), out_file_name); |
| 1398 | fprintf (list_file, _("\n target \t: %s"), TARGET_CANONICAL); |
| 1399 | print_timestamp (); |
| 1400 | } |
| 1401 | |
| 1402 | void |
| 1403 | listing_print (char *name, char **argv) |
| 1404 | { |
| 1405 | int using_stdout; |
| 1406 | |
| 1407 | title = ""; |
| 1408 | subtitle = ""; |
| 1409 | |
| 1410 | if (name == NULL) |
| 1411 | { |
| 1412 | list_file = stdout; |
| 1413 | using_stdout = 1; |
| 1414 | } |
| 1415 | else |
| 1416 | { |
| 1417 | list_file = fopen (name, FOPEN_WT); |
| 1418 | if (list_file != NULL) |
| 1419 | using_stdout = 0; |
| 1420 | else |
| 1421 | { |
| 1422 | as_warn (_("can't open %s: %s"), name, xstrerror (errno)); |
| 1423 | list_file = stdout; |
| 1424 | using_stdout = 1; |
| 1425 | } |
| 1426 | } |
| 1427 | |
| 1428 | if (listing & LISTING_NOFORM) |
| 1429 | paper_height = 0; |
| 1430 | |
| 1431 | if (listing & LISTING_GENERAL) |
| 1432 | listing_general_info (argv); |
| 1433 | |
| 1434 | if (listing & LISTING_LISTING) |
| 1435 | listing_listing (name); |
| 1436 | |
| 1437 | if (listing & LISTING_SYMBOLS) |
| 1438 | list_symbol_table (); |
| 1439 | |
| 1440 | if (! using_stdout) |
| 1441 | { |
| 1442 | if (fclose (list_file) == EOF) |
| 1443 | as_warn (_("can't close %s: %s"), name, xstrerror (errno)); |
| 1444 | } |
| 1445 | |
| 1446 | if (last_open_file) |
| 1447 | fclose (last_open_file); |
| 1448 | } |
| 1449 | |
| 1450 | void |
| 1451 | listing_file (const char *name) |
| 1452 | { |
| 1453 | fn = name; |
| 1454 | } |
| 1455 | |
| 1456 | void |
| 1457 | listing_eject (int ignore ATTRIBUTE_UNUSED) |
| 1458 | { |
| 1459 | if (listing) |
| 1460 | listing_tail->edict = EDICT_EJECT; |
| 1461 | } |
| 1462 | |
| 1463 | /* Turn listing on or off. An argument of 0 means to turn off |
| 1464 | listing. An argument of 1 means to turn on listing. An argument |
| 1465 | of 2 means to turn off listing, but as of the next line; that is, |
| 1466 | the current line should be listed, but the next line should not. */ |
| 1467 | |
| 1468 | void |
| 1469 | listing_list (int on) |
| 1470 | { |
| 1471 | if (listing) |
| 1472 | { |
| 1473 | switch (on) |
| 1474 | { |
| 1475 | case 0: |
| 1476 | if (listing_tail->edict == EDICT_LIST) |
| 1477 | listing_tail->edict = EDICT_NONE; |
| 1478 | else |
| 1479 | listing_tail->edict = EDICT_NOLIST; |
| 1480 | break; |
| 1481 | case 1: |
| 1482 | if (listing_tail->edict == EDICT_NOLIST |
| 1483 | || listing_tail->edict == EDICT_NOLIST_NEXT) |
| 1484 | listing_tail->edict = EDICT_NONE; |
| 1485 | else |
| 1486 | listing_tail->edict = EDICT_LIST; |
| 1487 | break; |
| 1488 | case 2: |
| 1489 | listing_tail->edict = EDICT_NOLIST_NEXT; |
| 1490 | break; |
| 1491 | default: |
| 1492 | abort (); |
| 1493 | } |
| 1494 | } |
| 1495 | } |
| 1496 | |
| 1497 | void |
| 1498 | listing_psize (int width_only) |
| 1499 | { |
| 1500 | if (! width_only) |
| 1501 | { |
| 1502 | paper_height = get_absolute_expression (); |
| 1503 | |
| 1504 | if (paper_height < 0 || paper_height > 1000) |
| 1505 | { |
| 1506 | paper_height = 0; |
| 1507 | as_warn (_("strange paper height, set to no form")); |
| 1508 | } |
| 1509 | |
| 1510 | if (*input_line_pointer != ',') |
| 1511 | { |
| 1512 | demand_empty_rest_of_line (); |
| 1513 | return; |
| 1514 | } |
| 1515 | |
| 1516 | ++input_line_pointer; |
| 1517 | } |
| 1518 | |
| 1519 | paper_width = get_absolute_expression (); |
| 1520 | |
| 1521 | demand_empty_rest_of_line (); |
| 1522 | } |
| 1523 | |
| 1524 | void |
| 1525 | listing_nopage (int ignore ATTRIBUTE_UNUSED) |
| 1526 | { |
| 1527 | paper_height = 0; |
| 1528 | } |
| 1529 | |
| 1530 | void |
| 1531 | listing_title (int depth) |
| 1532 | { |
| 1533 | int quoted; |
| 1534 | char *start; |
| 1535 | char *ttl; |
| 1536 | unsigned int length; |
| 1537 | |
| 1538 | SKIP_WHITESPACE (); |
| 1539 | if (*input_line_pointer != '\"') |
| 1540 | quoted = 0; |
| 1541 | else |
| 1542 | { |
| 1543 | quoted = 1; |
| 1544 | ++input_line_pointer; |
| 1545 | } |
| 1546 | |
| 1547 | start = input_line_pointer; |
| 1548 | |
| 1549 | while (*input_line_pointer) |
| 1550 | { |
| 1551 | if (quoted |
| 1552 | ? *input_line_pointer == '\"' |
| 1553 | : is_end_of_line[(unsigned char) *input_line_pointer]) |
| 1554 | { |
| 1555 | if (listing) |
| 1556 | { |
| 1557 | length = input_line_pointer - start; |
| 1558 | ttl = xmemdup0 (start, length); |
| 1559 | listing_tail->edict = depth ? EDICT_SBTTL : EDICT_TITLE; |
| 1560 | listing_tail->edict_arg = ttl; |
| 1561 | } |
| 1562 | if (quoted) |
| 1563 | input_line_pointer++; |
| 1564 | demand_empty_rest_of_line (); |
| 1565 | return; |
| 1566 | } |
| 1567 | else if (*input_line_pointer == '\n') |
| 1568 | { |
| 1569 | as_bad (_("new line in title")); |
| 1570 | demand_empty_rest_of_line (); |
| 1571 | return; |
| 1572 | } |
| 1573 | else |
| 1574 | { |
| 1575 | input_line_pointer++; |
| 1576 | } |
| 1577 | } |
| 1578 | } |
| 1579 | |
| 1580 | void |
| 1581 | listing_source_line (unsigned int line) |
| 1582 | { |
| 1583 | if (listing) |
| 1584 | { |
| 1585 | new_frag (); |
| 1586 | listing_tail->hll_line = line; |
| 1587 | new_frag (); |
| 1588 | } |
| 1589 | } |
| 1590 | |
| 1591 | void |
| 1592 | listing_source_file (const char *file) |
| 1593 | { |
| 1594 | if (listing) |
| 1595 | listing_tail->hll_file = file_info (file); |
| 1596 | } |
| 1597 | |
| 1598 | #else |
| 1599 | |
| 1600 | /* Dummy functions for when compiled without listing enabled. */ |
| 1601 | |
| 1602 | void |
| 1603 | listing_list (int on) |
| 1604 | { |
| 1605 | s_ignore (0); |
| 1606 | } |
| 1607 | |
| 1608 | void |
| 1609 | listing_eject (int ignore) |
| 1610 | { |
| 1611 | s_ignore (0); |
| 1612 | } |
| 1613 | |
| 1614 | void |
| 1615 | listing_psize (int ignore) |
| 1616 | { |
| 1617 | s_ignore (0); |
| 1618 | } |
| 1619 | |
| 1620 | void |
| 1621 | listing_nopage (int ignore) |
| 1622 | { |
| 1623 | s_ignore (0); |
| 1624 | } |
| 1625 | |
| 1626 | void |
| 1627 | listing_title (int depth) |
| 1628 | { |
| 1629 | s_ignore (0); |
| 1630 | } |
| 1631 | |
| 1632 | void |
| 1633 | listing_file (const char *name) |
| 1634 | { |
| 1635 | } |
| 1636 | |
| 1637 | void |
| 1638 | listing_newline (char *name) |
| 1639 | { |
| 1640 | } |
| 1641 | |
| 1642 | void |
| 1643 | listing_source_line (unsigned int n) |
| 1644 | { |
| 1645 | } |
| 1646 | |
| 1647 | void |
| 1648 | listing_source_file (const char *n) |
| 1649 | { |
| 1650 | } |
| 1651 | |
| 1652 | #endif |