1/* Work with executable files, for GDB. 2 3 Copyright 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 4 1997, 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, 5 Inc. 6 7 This file is part of GDB. 8 9 This program is free software; you can redistribute it and/or modify 10 it under the terms of the GNU General Public License as published by 11 the Free Software Foundation; either version 2 of the License, or 12 (at your option) any later version. 13 14 This program is distributed in the hope that it will be useful, 15 but WITHOUT ANY WARRANTY; without even the implied warranty of 16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 GNU General Public License for more details. 18 19 You should have received a copy of the GNU General Public License 20 along with this program; if not, write to the Free Software 21 Foundation, Inc., 59 Temple Place - Suite 330, 22 Boston, MA 02111-1307, USA. */ 23 24#include "defs.h" 25#include "frame.h" 26#include "inferior.h" 27#include "target.h" 28#include "gdbcmd.h" 29#include "language.h" 30#include "symfile.h" 31#include "objfiles.h" 32#include "completer.h" 33#include "value.h" 34#include "exec.h" 35 36#ifdef USG 37#include <sys/types.h> 38#endif 39 40#include <fcntl.h> 41#include "readline/readline.h" 42#include "gdb_string.h" 43 44#include "gdbcore.h" 45 46#include <ctype.h> 47#include "gdb_stat.h" 48#ifndef O_BINARY 49#define O_BINARY 0 50#endif 51 52#include "xcoffsolib.h" 53 54struct vmap *map_vmap (bfd *, bfd *); 55 56void (*file_changed_hook) (char *); 57 58/* Prototypes for local functions */ 59 60static void exec_close (int); 61 62static void file_command (char *, int); 63 64static void set_section_command (char *, int); 65 66static void exec_files_info (struct target_ops *); 67 68static int ignore (CORE_ADDR, char *); 69 70static void init_exec_ops (void); 71 72void _initialize_exec (void); 73 74/* The target vector for executable files. */ 75 76struct target_ops exec_ops; 77 78/* The Binary File Descriptor handle for the executable file. */ 79 80bfd *exec_bfd = NULL; 81 82/* Whether to open exec and core files read-only or read-write. */ 83 84int write_files = 0; 85 86struct vmap *vmap; 87 88void 89exec_open (char *args, int from_tty) 90{ 91 target_preopen (from_tty); 92 exec_file_attach (args, from_tty); 93} 94 95static void 96exec_close (int quitting) 97{ 98 int need_symtab_cleanup = 0; 99 struct vmap *vp, *nxt; 100 101 for (nxt = vmap; nxt != NULL;) 102 { 103 vp = nxt; 104 nxt = vp->nxt; 105 106 /* if there is an objfile associated with this bfd, 107 free_objfile() will do proper cleanup of objfile *and* bfd. */ 108 109 if (vp->objfile) 110 { 111 free_objfile (vp->objfile); 112 need_symtab_cleanup = 1; 113 } 114 else if (vp->bfd != exec_bfd) 115 /* FIXME-leak: We should be freeing vp->name too, I think. */ 116 if (!bfd_close (vp->bfd)) 117 warning ("cannot close \"%s\": %s", 118 vp->name, bfd_errmsg (bfd_get_error ())); 119 120 /* FIXME: This routine is #if 0'd in symfile.c. What should we 121 be doing here? Should we just free everything in 122 vp->objfile->symtabs? Should free_objfile do that? 123 FIXME-as-well: free_objfile already free'd vp->name, so it isn't 124 valid here. */ 125 free_named_symtabs (vp->name); 126 xfree (vp); 127 } 128 129 vmap = NULL; 130 131 if (exec_bfd) 132 { 133 char *name = bfd_get_filename (exec_bfd); 134 135 if (!bfd_close (exec_bfd)) 136 warning ("cannot close \"%s\": %s", 137 name, bfd_errmsg (bfd_get_error ())); 138 xfree (name); 139 exec_bfd = NULL; 140 } 141 142 if (exec_ops.to_sections) 143 { 144 xfree (exec_ops.to_sections); 145 exec_ops.to_sections = NULL; 146 exec_ops.to_sections_end = NULL; 147 } 148} 149 150void 151exec_file_clear (int from_tty) 152{ 153 /* Remove exec file. */ 154 unpush_target (&exec_ops); 155 156 if (from_tty) 157 printf_unfiltered ("No executable file now.\n"); 158} 159 160/* Process the first arg in ARGS as the new exec file. 161 162 This function is intended to be behave essentially the same 163 as exec_file_command, except that the latter will detect when 164 a target is being debugged, and will ask the user whether it 165 should be shut down first. (If the answer is "no", then the 166 new file is ignored.) 167 168 This file is used by exec_file_command, to do the work of opening 169 and processing the exec file after any prompting has happened. 170 171 And, it is used by child_attach, when the attach command was 172 given a pid but not a exec pathname, and the attach command could 173 figure out the pathname from the pid. (In this case, we shouldn't 174 ask the user whether the current target should be shut down -- 175 we're supplying the exec pathname late for good reason.) 176 177 ARGS is assumed to be the filename. */ 178 179void 180exec_file_attach (char *filename, int from_tty) 181{ 182 /* Remove any previous exec file. */ 183 unpush_target (&exec_ops); 184 185 /* Now open and digest the file the user requested, if any. */ 186 187 if (!filename) 188 { 189 if (from_tty) 190 printf_unfiltered ("No executable file now.\n"); 191 } 192 else 193 { 194 char *scratch_pathname; 195 int scratch_chan; 196 197 scratch_chan = openp (getenv ("PATH"), 1, filename, 198 write_files ? O_RDWR | O_BINARY : O_RDONLY | O_BINARY, 0, 199 &scratch_pathname); 200#if defined(__GO32__) || defined(_WIN32) || defined(__CYGWIN__) 201 if (scratch_chan < 0) 202 { 203 char *exename = alloca (strlen (filename) + 5); 204 strcat (strcpy (exename, filename), ".exe"); 205 scratch_chan = openp (getenv ("PATH"), 1, exename, write_files ? 206 O_RDWR | O_BINARY : O_RDONLY | O_BINARY, 0, &scratch_pathname); 207 } 208#endif 209 if (scratch_chan < 0) 210 perror_with_name (filename); 211 exec_bfd = bfd_fdopenr (scratch_pathname, gnutarget, scratch_chan); 212 213 if (!exec_bfd) 214 error ("\"%s\": could not open as an executable file: %s", 215 scratch_pathname, bfd_errmsg (bfd_get_error ())); 216 217 /* At this point, scratch_pathname and exec_bfd->name both point to the 218 same malloc'd string. However exec_close() will attempt to free it 219 via the exec_bfd->name pointer, so we need to make another copy and 220 leave exec_bfd as the new owner of the original copy. */ 221 scratch_pathname = xstrdup (scratch_pathname); 222 make_cleanup (xfree, scratch_pathname); 223 224 if (!bfd_check_format (exec_bfd, bfd_object)) 225 { 226 /* Make sure to close exec_bfd, or else "run" might try to use 227 it. */ 228 exec_close (0); 229 error ("\"%s\": not in executable format: %s", 230 scratch_pathname, bfd_errmsg (bfd_get_error ())); 231 } 232 233 /* FIXME - This should only be run for RS6000, but the ifdef is a poor 234 way to accomplish. */ 235#ifdef DEPRECATED_IBM6000_TARGET 236 /* Setup initial vmap. */ 237 238 map_vmap (exec_bfd, 0); 239 if (vmap == NULL) 240 { 241 /* Make sure to close exec_bfd, or else "run" might try to use 242 it. */ 243 exec_close (0); 244 error ("\"%s\": can't find the file sections: %s", 245 scratch_pathname, bfd_errmsg (bfd_get_error ())); 246 } 247#endif /* DEPRECATED_IBM6000_TARGET */ 248 249 if (build_section_table (exec_bfd, &exec_ops.to_sections, 250 &exec_ops.to_sections_end)) 251 { 252 /* Make sure to close exec_bfd, or else "run" might try to use 253 it. */ 254 exec_close (0); 255 error ("\"%s\": can't find the file sections: %s", 256 scratch_pathname, bfd_errmsg (bfd_get_error ())); 257 } 258 259#ifdef DEPRECATED_HPUX_TEXT_END 260 DEPRECATED_HPUX_TEXT_END (&exec_ops); 261#endif 262 263 validate_files (); 264 265 set_gdbarch_from_file (exec_bfd); 266 267 push_target (&exec_ops); 268 269 /* Tell display code (if any) about the changed file name. */ 270 if (exec_file_display_hook) 271 (*exec_file_display_hook) (filename); 272 } 273} 274 275/* Process the first arg in ARGS as the new exec file. 276 277 Note that we have to explicitly ignore additional args, since we can 278 be called from file_command(), which also calls symbol_file_command() 279 which can take multiple args. 280 281 If ARGS is NULL, we just want to close the exec file. */ 282 283static void 284exec_file_command (char *args, int from_tty) 285{ 286 char **argv; 287 char *filename; 288 289 target_preopen (from_tty); 290 291 if (args) 292 { 293 /* Scan through the args and pick up the first non option arg 294 as the filename. */ 295 296 argv = buildargv (args); 297 if (argv == NULL) 298 nomem (0); 299 300 make_cleanup_freeargv (argv); 301 302 for (; (*argv != NULL) && (**argv == '-'); argv++) 303 {; 304 } 305 if (*argv == NULL) 306 error ("No executable file name was specified"); 307 308 filename = tilde_expand (*argv); 309 make_cleanup (xfree, filename); 310 exec_file_attach (filename, from_tty); 311 } 312 else 313 exec_file_attach (NULL, from_tty); 314} 315 316/* Set both the exec file and the symbol file, in one command. 317 What a novelty. Why did GDB go through four major releases before this 318 command was added? */ 319 320static void 321file_command (char *arg, int from_tty) 322{ 323 /* FIXME, if we lose on reading the symbol file, we should revert 324 the exec file, but that's rough. */ 325 exec_file_command (arg, from_tty); 326 symbol_file_command (arg, from_tty); 327 if (file_changed_hook) 328 file_changed_hook (arg); 329} 330 331 332/* Locate all mappable sections of a BFD file. 333 table_pp_char is a char * to get it through bfd_map_over_sections; 334 we cast it back to its proper type. */ 335 336static void 337add_to_section_table (bfd *abfd, struct bfd_section *asect, 338 void *table_pp_char) 339{ 340 struct section_table **table_pp = (struct section_table **) table_pp_char; 341 flagword aflag; 342 343 aflag = bfd_get_section_flags (abfd, asect); 344 if (!(aflag & SEC_ALLOC)) 345 return; 346 if (0 == bfd_section_size (abfd, asect)) 347 return; 348 (*table_pp)->bfd = abfd; 349 (*table_pp)->the_bfd_section = asect; 350 (*table_pp)->addr = bfd_section_vma (abfd, asect); 351 (*table_pp)->endaddr = (*table_pp)->addr + bfd_section_size (abfd, asect); 352 (*table_pp)++; 353} 354 355/* Builds a section table, given args BFD, SECTABLE_PTR, SECEND_PTR. 356 Returns 0 if OK, 1 on error. */ 357 358int 359build_section_table (struct bfd *some_bfd, struct section_table **start, 360 struct section_table **end) 361{ 362 unsigned count; 363 364 count = bfd_count_sections (some_bfd); 365 if (*start) 366 xfree (* start); 367 *start = (struct section_table *) xmalloc (count * sizeof (**start)); 368 *end = *start; 369 bfd_map_over_sections (some_bfd, add_to_section_table, (char *) end); 370 if (*end > *start + count) 371 internal_error (__FILE__, __LINE__, "failed internal consistency check"); 372 /* We could realloc the table, but it probably loses for most files. */ 373 return 0; 374} 375 376static void 377bfdsec_to_vmap (struct bfd *abfd, struct bfd_section *sect, void *arg3) 378{ 379 struct vmap_and_bfd *vmap_bfd = (struct vmap_and_bfd *) arg3; 380 struct vmap *vp; 381 382 vp = vmap_bfd->pvmap; 383 384 if ((bfd_get_section_flags (abfd, sect) & SEC_LOAD) == 0) 385 return; 386 387 if (DEPRECATED_STREQ (bfd_section_name (abfd, sect), ".text")) 388 { 389 vp->tstart = bfd_section_vma (abfd, sect); 390 vp->tend = vp->tstart + bfd_section_size (abfd, sect); 391 vp->tvma = bfd_section_vma (abfd, sect); 392 vp->toffs = sect->filepos; 393 } 394 else if (DEPRECATED_STREQ (bfd_section_name (abfd, sect), ".data")) 395 { 396 vp->dstart = bfd_section_vma (abfd, sect); 397 vp->dend = vp->dstart + bfd_section_size (abfd, sect); 398 vp->dvma = bfd_section_vma (abfd, sect); 399 } 400 /* Silently ignore other types of sections. (FIXME?) */ 401} 402 403/* Make a vmap for ABFD which might be a member of the archive ARCH. 404 Return the new vmap. */ 405 406struct vmap * 407map_vmap (bfd *abfd, bfd *arch) 408{ 409 struct vmap_and_bfd vmap_bfd; 410 struct vmap *vp, **vpp; 411 412 vp = (struct vmap *) xmalloc (sizeof (*vp)); 413 memset ((char *) vp, '\0', sizeof (*vp)); 414 vp->nxt = 0; 415 vp->bfd = abfd; 416 vp->name = bfd_get_filename (arch ? arch : abfd); 417 vp->member = arch ? bfd_get_filename (abfd) : ""; 418 419 vmap_bfd.pbfd = arch; 420 vmap_bfd.pvmap = vp; 421 bfd_map_over_sections (abfd, bfdsec_to_vmap, &vmap_bfd); 422 423 /* Find the end of the list and append. */ 424 for (vpp = &vmap; *vpp; vpp = &(*vpp)->nxt) 425 ; 426 *vpp = vp; 427 428 return vp; 429} 430 431/* Read or write the exec file. 432 433 Args are address within a BFD file, address within gdb address-space, 434 length, and a flag indicating whether to read or write. 435 436 Result is a length: 437 438 0: We cannot handle this address and length. 439 > 0: We have handled N bytes starting at this address. 440 (If N == length, we did it all.) We might be able 441 to handle more bytes beyond this length, but no 442 promises. 443 < 0: We cannot handle this address, but if somebody 444 else handles (-N) bytes, we can start from there. 445 446 The same routine is used to handle both core and exec files; 447 we just tail-call it with more arguments to select between them. */ 448 449int 450xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write, 451 struct mem_attrib *attrib, 452 struct target_ops *target) 453{ 454 int res; 455 struct section_table *p; 456 CORE_ADDR nextsectaddr, memend; 457 asection *section = NULL; 458 459 if (len <= 0) 460 internal_error (__FILE__, __LINE__, "failed internal consistency check"); 461 462 if (overlay_debugging) 463 { 464 section = find_pc_overlay (memaddr); 465 if (pc_in_unmapped_range (memaddr, section)) 466 memaddr = overlay_mapped_address (memaddr, section); 467 } 468 469 memend = memaddr + len; 470 nextsectaddr = memend; 471 472 for (p = target->to_sections; p < target->to_sections_end; p++) 473 { 474 if (overlay_debugging && section && p->the_bfd_section && 475 strcmp (section->name, p->the_bfd_section->name) != 0) 476 continue; /* not the section we need */ 477 if (memaddr >= p->addr) 478 { 479 if (memend <= p->endaddr) 480 { 481 /* Entire transfer is within this section. */ 482 if (write) 483 res = bfd_set_section_contents (p->bfd, p->the_bfd_section, 484 myaddr, memaddr - p->addr, 485 len); 486 else 487 res = bfd_get_section_contents (p->bfd, p->the_bfd_section, 488 myaddr, memaddr - p->addr, 489 len); 490 return (res != 0) ? len : 0; 491 } 492 else if (memaddr >= p->endaddr) 493 { 494 /* This section ends before the transfer starts. */ 495 continue; 496 } 497 else 498 { 499 /* This section overlaps the transfer. Just do half. */ 500 len = p->endaddr - memaddr; 501 if (write) 502 res = bfd_set_section_contents (p->bfd, p->the_bfd_section, 503 myaddr, memaddr - p->addr, 504 len); 505 else 506 res = bfd_get_section_contents (p->bfd, p->the_bfd_section, 507 myaddr, memaddr - p->addr, 508 len); 509 return (res != 0) ? len : 0; 510 } 511 } 512 else 513 nextsectaddr = min (nextsectaddr, p->addr); 514 } 515 516 if (nextsectaddr >= memend) 517 return 0; /* We can't help */ 518 else 519 return -(nextsectaddr - memaddr); /* Next boundary where we can help */ 520} 521 522 523void 524print_section_info (struct target_ops *t, bfd *abfd) 525{ 526 struct section_table *p; 527 /* FIXME: "016l" is not wide enough when TARGET_ADDR_BIT > 64. */ 528 char *fmt = TARGET_ADDR_BIT <= 32 ? "08l" : "016l"; 529 530 printf_filtered ("\t`%s', ", bfd_get_filename (abfd)); 531 wrap_here (" "); 532 printf_filtered ("file type %s.\n", bfd_get_target (abfd)); 533 if (abfd == exec_bfd) 534 { 535 printf_filtered ("\tEntry point: "); 536 print_address_numeric (bfd_get_start_address (abfd), 1, gdb_stdout); 537 printf_filtered ("\n"); 538 } 539 for (p = t->to_sections; p < t->to_sections_end; p++) 540 { 541 printf_filtered ("\t%s", local_hex_string_custom (p->addr, fmt)); 542 printf_filtered (" - %s", local_hex_string_custom (p->endaddr, fmt)); 543 544 /* FIXME: A format of "08l" is not wide enough for file offsets 545 larger than 4GB. OTOH, making it "016l" isn't desirable either 546 since most output will then be much wider than necessary. It 547 may make sense to test the size of the file and choose the 548 format string accordingly. */ 549 if (info_verbose) 550 printf_filtered (" @ %s", 551 local_hex_string_custom (p->the_bfd_section->filepos, "08l")); 552 printf_filtered (" is %s", bfd_section_name (p->bfd, p->the_bfd_section)); 553 if (p->bfd != abfd) 554 { 555 printf_filtered (" in %s", bfd_get_filename (p->bfd)); 556 } 557 printf_filtered ("\n"); 558 } 559} 560 561static void 562exec_files_info (struct target_ops *t) 563{ 564 print_section_info (t, exec_bfd); 565 566 if (vmap) 567 { 568 struct vmap *vp; 569 570 printf_unfiltered ("\tMapping info for file `%s'.\n", vmap->name); 571 printf_unfiltered ("\t %*s %*s %*s %*s %8.8s %s\n", 572 strlen_paddr (), "tstart", 573 strlen_paddr (), "tend", 574 strlen_paddr (), "dstart", 575 strlen_paddr (), "dend", 576 "section", 577 "file(member)"); 578 579 for (vp = vmap; vp; vp = vp->nxt) 580 printf_unfiltered ("\t0x%s 0x%s 0x%s 0x%s %s%s%s%s\n", 581 paddr (vp->tstart), 582 paddr (vp->tend), 583 paddr (vp->dstart), 584 paddr (vp->dend), 585 vp->name, 586 *vp->member ? "(" : "", vp->member, 587 *vp->member ? ")" : ""); 588 } 589} 590 591/* msnyder 5/21/99: 592 exec_set_section_offsets sets the offsets of all the sections 593 in the exec objfile. */ 594 595void 596exec_set_section_offsets (bfd_signed_vma text_off, bfd_signed_vma data_off, 597 bfd_signed_vma bss_off) 598{ 599 struct section_table *sect; 600 601 for (sect = exec_ops.to_sections; 602 sect < exec_ops.to_sections_end; 603 sect++) 604 { 605 flagword flags; 606 607 flags = bfd_get_section_flags (exec_bfd, sect->the_bfd_section); 608 609 if (flags & SEC_CODE) 610 { 611 sect->addr += text_off; 612 sect->endaddr += text_off; 613 } 614 else if (flags & (SEC_DATA | SEC_LOAD)) 615 { 616 sect->addr += data_off; 617 sect->endaddr += data_off; 618 } 619 else if (flags & SEC_ALLOC) 620 { 621 sect->addr += bss_off; 622 sect->endaddr += bss_off; 623 } 624 } 625} 626 627static void 628set_section_command (char *args, int from_tty) 629{ 630 struct section_table *p; 631 char *secname; 632 unsigned seclen; 633 unsigned long secaddr; 634 char secprint[100]; 635 long offset; 636 637 if (args == 0) 638 error ("Must specify section name and its virtual address"); 639 640 /* Parse out section name */ 641 for (secname = args; !isspace (*args); args++); 642 seclen = args - secname; 643 644 /* Parse out new virtual address */ 645 secaddr = parse_and_eval_address (args); 646 647 for (p = exec_ops.to_sections; p < exec_ops.to_sections_end; p++) 648 { 649 if (!strncmp (secname, bfd_section_name (exec_bfd, p->the_bfd_section), seclen) 650 && bfd_section_name (exec_bfd, p->the_bfd_section)[seclen] == '\0') 651 { 652 offset = secaddr - p->addr; 653 p->addr += offset; 654 p->endaddr += offset; 655 if (from_tty) 656 exec_files_info (&exec_ops); 657 return; 658 } 659 } 660 if (seclen >= sizeof (secprint)) 661 seclen = sizeof (secprint) - 1; 662 strncpy (secprint, secname, seclen); 663 secprint[seclen] = '\0'; 664 error ("Section %s not found", secprint); 665} 666 667/* If mourn is being called in all the right places, this could be say 668 `gdb internal error' (since generic_mourn calls 669 breakpoint_init_inferior). */ 670 671static int 672ignore (CORE_ADDR addr, char *contents) 673{ 674 return 0; 675} 676 677/* Find mapped memory. */ 678 679extern void 680exec_set_find_memory_regions (int (*func) (int (*) (CORE_ADDR, 681 unsigned long, 682 int, int, int, 683 void *), 684 void *)) 685{ 686 exec_ops.to_find_memory_regions = func; 687} 688 689static char *exec_make_note_section (bfd *, int *); 690 691/* Fill in the exec file target vector. Very few entries need to be 692 defined. */ 693 694static void 695init_exec_ops (void) 696{ 697 exec_ops.to_shortname = "exec"; 698 exec_ops.to_longname = "Local exec file"; 699 exec_ops.to_doc = "Use an executable file as a target.\n\ 700Specify the filename of the executable file."; 701 exec_ops.to_open = exec_open; 702 exec_ops.to_close = exec_close; 703 exec_ops.to_attach = find_default_attach; 704 exec_ops.to_xfer_memory = xfer_memory; 705 exec_ops.to_files_info = exec_files_info; 706 exec_ops.to_insert_breakpoint = ignore; 707 exec_ops.to_remove_breakpoint = ignore; 708 exec_ops.to_create_inferior = find_default_create_inferior; 709 exec_ops.to_stratum = file_stratum; 710 exec_ops.to_has_memory = 1; 711 exec_ops.to_make_corefile_notes = exec_make_note_section; 712 exec_ops.to_magic = OPS_MAGIC; 713} 714 715void 716_initialize_exec (void) 717{ 718 struct cmd_list_element *c; 719 720 init_exec_ops (); 721 722 if (!dbx_commands) 723 { 724 c = add_cmd ("file", class_files, file_command, 725 "Use FILE as program to be debugged.\n\ 726It is read for its symbols, for getting the contents of pure memory,\n\ 727and it is the program executed when you use the `run' command.\n\ 728If FILE cannot be found as specified, your execution directory path\n\ 729($PATH) is searched for a command of that name.\n\ 730No arg means to have no executable file and no symbols.", &cmdlist); 731 set_cmd_completer (c, filename_completer); 732 } 733 734 c = add_cmd ("exec-file", class_files, exec_file_command, 735 "Use FILE as program for getting contents of pure memory.\n\ 736If FILE cannot be found as specified, your execution directory path\n\ 737is searched for a command of that name.\n\ 738No arg means have no executable file.", &cmdlist); 739 set_cmd_completer (c, filename_completer); 740 741 add_com ("section", class_files, set_section_command, 742 "Change the base address of section SECTION of the exec file to ADDR.\n\ 743This can be used if the exec file does not contain section addresses,\n\ 744(such as in the a.out format), or when the addresses specified in the\n\ 745file itself are wrong. Each section must be changed separately. The\n\ 746``info files'' command lists all the sections and their addresses."); 747 748 add_show_from_set 749 (add_set_cmd ("write", class_support, var_boolean, (char *) &write_files, 750 "Set writing into executable and core files.", 751 &setlist), 752 &showlist); 753 754 add_target (&exec_ops); 755} 756 757static char * 758exec_make_note_section (bfd *obfd, int *note_size) 759{ 760 error ("Can't create a corefile"); 761} 762