merge from gcc
[binutils.git] / binutils / bucomm.c
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1 /* bucomm.c -- Bin Utils COMmon code.
2 Copyright 1991, 1992, 1993, 1994, 1995, 1997, 1998, 2000, 2001, 2002, 2003
3 Free Software Foundation, Inc.
5 This file is part of GNU Binutils.
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 2 of the License, or
10 (at your option) any later version.
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.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
20 02110-1301, USA. */
22 /* We might put this in a library someday so it could be dynamically
23 loaded, but for now it's not necessary. */
25 #include "bfd.h"
26 #include "bfdver.h"
27 #include "libiberty.h"
28 #include "bucomm.h"
29 #include "filenames.h"
30 #include "libbfd.h"
32 #include <sys/stat.h>
33 #include <time.h> /* ctime, maybe time_t */
34 #include <assert.h>
36 #ifndef HAVE_TIME_T_IN_TIME_H
37 #ifndef HAVE_TIME_T_IN_TYPES_H
38 typedef long time_t;
39 #endif
40 #endif
42 static const char * endian_string (enum bfd_endian);
43 static int display_target_list (void);
44 static int display_info_table (int, int);
45 static int display_target_tables (void);
47 /* Error reporting. */
49 char *program_name;
51 void
52 bfd_nonfatal (const char *string)
54 const char *errmsg = bfd_errmsg (bfd_get_error ());
56 if (string)
57 fprintf (stderr, "%s: %s: %s\n", program_name, string, errmsg);
58 else
59 fprintf (stderr, "%s: %s\n", program_name, errmsg);
62 void
63 bfd_fatal (const char *string)
65 bfd_nonfatal (string);
66 xexit (1);
69 void
70 report (const char * format, va_list args)
72 fprintf (stderr, "%s: ", program_name);
73 vfprintf (stderr, format, args);
74 putc ('\n', stderr);
77 void
78 fatal VPARAMS ((const char *format, ...))
80 VA_OPEN (args, format);
81 VA_FIXEDARG (args, const char *, format);
83 report (format, args);
84 VA_CLOSE (args);
85 xexit (1);
88 void
89 non_fatal VPARAMS ((const char *format, ...))
91 VA_OPEN (args, format);
92 VA_FIXEDARG (args, const char *, format);
94 report (format, args);
95 VA_CLOSE (args);
98 /* Set the default BFD target based on the configured target. Doing
99 this permits the binutils to be configured for a particular target,
100 and linked against a shared BFD library which was configured for a
101 different target. */
103 void
104 set_default_bfd_target (void)
106 /* The macro TARGET is defined by Makefile. */
107 const char *target = TARGET;
109 if (! bfd_set_default_target (target))
110 fatal (_("can't set BFD default target to `%s': %s"),
111 target, bfd_errmsg (bfd_get_error ()));
114 /* After a FALSE return from bfd_check_format_matches with
115 bfd_get_error () == bfd_error_file_ambiguously_recognized, print
116 the possible matching targets. */
118 void
119 list_matching_formats (char **p)
121 fprintf (stderr, _("%s: Matching formats:"), program_name);
122 while (*p)
123 fprintf (stderr, " %s", *p++);
124 fputc ('\n', stderr);
127 /* List the supported targets. */
129 void
130 list_supported_targets (const char *name, FILE *f)
132 int t;
133 const char **targ_names = bfd_target_list ();
135 if (name == NULL)
136 fprintf (f, _("Supported targets:"));
137 else
138 fprintf (f, _("%s: supported targets:"), name);
140 for (t = 0; targ_names[t] != NULL; t++)
141 fprintf (f, " %s", targ_names[t]);
142 fprintf (f, "\n");
143 free (targ_names);
146 /* List the supported architectures. */
148 void
149 list_supported_architectures (const char *name, FILE *f)
151 const char **arch;
153 if (name == NULL)
154 fprintf (f, _("Supported architectures:"));
155 else
156 fprintf (f, _("%s: supported architectures:"), name);
158 for (arch = bfd_arch_list (); *arch; arch++)
159 fprintf (f, " %s", *arch);
160 fprintf (f, "\n");
163 /* The length of the longest architecture name + 1. */
164 #define LONGEST_ARCH sizeof ("powerpc:common")
166 static const char *
167 endian_string (enum bfd_endian endian)
169 switch (endian)
171 case BFD_ENDIAN_BIG: return "big endian";
172 case BFD_ENDIAN_LITTLE: return "little endian";
173 default: return "endianness unknown";
177 /* List the targets that BFD is configured to support, each followed
178 by its endianness and the architectures it supports. */
180 static int
181 display_target_list (void)
183 char *dummy_name;
184 int t;
185 int ret = 1;
187 dummy_name = make_temp_file (NULL);
188 for (t = 0; bfd_target_vector[t]; t++)
190 const bfd_target *p = bfd_target_vector[t];
191 bfd *abfd = bfd_openw (dummy_name, p->name);
192 int a;
194 printf ("%s\n (header %s, data %s)\n", p->name,
195 endian_string (p->header_byteorder),
196 endian_string (p->byteorder));
198 if (abfd == NULL)
200 bfd_nonfatal (dummy_name);
201 ret = 0;
202 continue;
205 if (! bfd_set_format (abfd, bfd_object))
207 if (bfd_get_error () != bfd_error_invalid_operation)
209 bfd_nonfatal (p->name);
210 ret = 0;
212 bfd_close_all_done (abfd);
213 continue;
216 for (a = (int) bfd_arch_obscure + 1; a < (int) bfd_arch_last; a++)
217 if (bfd_set_arch_mach (abfd, (enum bfd_architecture) a, 0))
218 printf (" %s\n",
219 bfd_printable_arch_mach ((enum bfd_architecture) a, 0));
220 bfd_close_all_done (abfd);
222 unlink (dummy_name);
223 free (dummy_name);
225 return ret;
228 /* Print a table showing which architectures are supported for entries
229 FIRST through LAST-1 of bfd_target_vector (targets across,
230 architectures down). */
232 static int
233 display_info_table (int first, int last)
235 int t;
236 int a;
237 int ret = 1;
238 char *dummy_name;
240 /* Print heading of target names. */
241 printf ("\n%*s", (int) LONGEST_ARCH, " ");
242 for (t = first; t < last && bfd_target_vector[t]; t++)
243 printf ("%s ", bfd_target_vector[t]->name);
244 putchar ('\n');
246 dummy_name = make_temp_file (NULL);
247 for (a = (int) bfd_arch_obscure + 1; a < (int) bfd_arch_last; a++)
248 if (strcmp (bfd_printable_arch_mach (a, 0), "UNKNOWN!") != 0)
250 printf ("%*s ", (int) LONGEST_ARCH - 1,
251 bfd_printable_arch_mach (a, 0));
252 for (t = first; t < last && bfd_target_vector[t]; t++)
254 const bfd_target *p = bfd_target_vector[t];
255 bfd_boolean ok = TRUE;
256 bfd *abfd = bfd_openw (dummy_name, p->name);
258 if (abfd == NULL)
260 bfd_nonfatal (p->name);
261 ret = 0;
262 ok = FALSE;
265 if (ok)
267 if (! bfd_set_format (abfd, bfd_object))
269 if (bfd_get_error () != bfd_error_invalid_operation)
271 bfd_nonfatal (p->name);
272 ret = 0;
274 ok = FALSE;
278 if (ok)
280 if (! bfd_set_arch_mach (abfd, a, 0))
281 ok = FALSE;
284 if (ok)
285 printf ("%s ", p->name);
286 else
288 int l = strlen (p->name);
289 while (l--)
290 putchar ('-');
291 putchar (' ');
293 if (abfd != NULL)
294 bfd_close_all_done (abfd);
296 putchar ('\n');
298 unlink (dummy_name);
299 free (dummy_name);
301 return ret;
304 /* Print tables of all the target-architecture combinations that
305 BFD has been configured to support. */
307 static int
308 display_target_tables (void)
310 int t;
311 int columns;
312 int ret = 1;
313 char *colum;
315 columns = 0;
316 colum = getenv ("COLUMNS");
317 if (colum != NULL)
318 columns = atoi (colum);
319 if (columns == 0)
320 columns = 80;
322 t = 0;
323 while (bfd_target_vector[t] != NULL)
325 int oldt = t, wid;
327 wid = LONGEST_ARCH + strlen (bfd_target_vector[t]->name) + 1;
328 ++t;
329 while (wid < columns && bfd_target_vector[t] != NULL)
331 int newwid;
333 newwid = wid + strlen (bfd_target_vector[t]->name) + 1;
334 if (newwid >= columns)
335 break;
336 wid = newwid;
337 ++t;
339 if (! display_info_table (oldt, t))
340 ret = 0;
343 return ret;
347 display_info (void)
349 printf (_("BFD header file version %s\n"), BFD_VERSION_STRING);
350 if (! display_target_list () || ! display_target_tables ())
351 return 1;
352 else
353 return 0;
356 /* Display the archive header for an element as if it were an ls -l listing:
358 Mode User\tGroup\tSize\tDate Name */
360 void
361 print_arelt_descr (FILE *file, bfd *abfd, bfd_boolean verbose)
363 struct stat buf;
365 if (verbose)
367 if (bfd_stat_arch_elt (abfd, &buf) == 0)
369 char modebuf[11];
370 char timebuf[40];
371 time_t when = buf.st_mtime;
372 const char *ctime_result = (const char *) ctime (&when);
374 /* POSIX format: skip weekday and seconds from ctime output. */
375 sprintf (timebuf, "%.12s %.4s", ctime_result + 4, ctime_result + 20);
377 mode_string (buf.st_mode, modebuf);
378 modebuf[10] = '\0';
379 /* POSIX 1003.2/D11 says to skip first character (entry type). */
380 fprintf (file, "%s %ld/%ld %6ld %s ", modebuf + 1,
381 (long) buf.st_uid, (long) buf.st_gid,
382 (long) buf.st_size, timebuf);
386 fprintf (file, "%s\n", bfd_get_filename (abfd));
389 /* Return the name of a temporary file in the same directory as FILENAME. */
391 char *
392 make_tempname (char *filename)
394 static char template[] = "stXXXXXX";
395 char *tmpname;
396 char *slash = strrchr (filename, '/');
398 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
400 /* We could have foo/bar\\baz, or foo\\bar, or d:bar. */
401 char *bslash = strrchr (filename, '\\');
402 if (slash == NULL || (bslash != NULL && bslash > slash))
403 slash = bslash;
404 if (slash == NULL && filename[0] != '\0' && filename[1] == ':')
405 slash = filename + 1;
407 #endif
409 if (slash != (char *) NULL)
411 char c;
413 c = *slash;
414 *slash = 0;
415 tmpname = xmalloc (strlen (filename) + sizeof (template) + 2);
416 strcpy (tmpname, filename);
417 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
418 /* If tmpname is "X:", appending a slash will make it a root
419 directory on drive X, which is NOT the same as the current
420 directory on drive X. */
421 if (tmpname[1] == ':' && tmpname[2] == '\0')
422 strcat (tmpname, ".");
423 #endif
424 strcat (tmpname, "/");
425 strcat (tmpname, template);
426 mktemp (tmpname);
427 *slash = c;
429 else
431 tmpname = xmalloc (sizeof (template));
432 strcpy (tmpname, template);
433 mktemp (tmpname);
435 return tmpname;
438 /* Parse a string into a VMA, with a fatal error if it can't be
439 parsed. */
441 bfd_vma
442 parse_vma (const char *s, const char *arg)
444 bfd_vma ret;
445 const char *end;
447 ret = bfd_scan_vma (s, &end, 0);
449 if (*end != '\0')
450 fatal (_("%s: bad number: %s"), arg, s);
452 return ret;
455 /* Returns the size of the named file. If the file does not
456 exist, or if it is not a real file, then a suitable non-fatal
457 error message is printed and zero is returned. */
459 off_t
460 get_file_size (const char * file_name)
462 struct stat statbuf;
464 if (stat (file_name, &statbuf) < 0)
466 if (errno == ENOENT)
467 non_fatal (_("'%s': No such file"), file_name);
468 else
469 non_fatal (_("Warning: could not locate '%s'. reason: %s"),
470 file_name, strerror (errno));
472 else if (! S_ISREG (statbuf.st_mode))
473 non_fatal (_("Warning: '%s' is not an ordinary file"), file_name);
474 else
475 return statbuf.st_size;
477 return 0;
480 /* Return the filename in a static buffer. */
482 const char *
483 bfd_get_archive_filename (bfd *abfd)
485 static size_t curr = 0;
486 static char *buf;
487 size_t needed;
489 assert (abfd != NULL);
491 if (!abfd->my_archive)
492 return bfd_get_filename (abfd);
494 needed = (strlen (bfd_get_filename (abfd->my_archive))
495 + strlen (bfd_get_filename (abfd)) + 3);
496 if (needed > curr)
498 if (curr)
499 free (buf);
500 curr = needed + (needed >> 1);
501 buf = bfd_malloc (curr);
502 /* If we can't malloc, fail safe by returning just the file name.
503 This function is only used when building error messages. */
504 if (!buf)
506 curr = 0;
507 return bfd_get_filename (abfd);
510 sprintf (buf, "%s(%s)", bfd_get_filename (abfd->my_archive),
511 bfd_get_filename (abfd));
512 return buf;