1 /* nm.c -- Describe symbol table of a rel file.
2 Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
3 2001, 2002, 2003, 2004, 2005
4 Free Software Foundation, Inc.
6 This file is part of GNU Binutils.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
28 #include "aout/stab_gnu.h"
29 #include "aout/ranlib.h"
31 #include "libiberty.h"
33 #include "elf/common.h"
35 /* When sorting by size, we use this structure to hold the size and a
36 pointer to the minisymbol. */
44 /* When fetching relocs, we use this structure to pass information to
47 struct get_relocs_info
55 struct extended_symbol_info
59 elf_symbol_type *elfinfo;
60 /* FIXME: We should add more fields for Type, Line, Section. */
62 #define SYM_NAME(sym) (sym->sinfo->name)
63 #define SYM_VALUE(sym) (sym->sinfo->value)
64 #define SYM_TYPE(sym) (sym->sinfo->type)
65 #define SYM_STAB_NAME(sym) (sym->sinfo->stab_name)
66 #define SYM_STAB_DESC(sym) (sym->sinfo->stab_desc)
67 #define SYM_STAB_OTHER(sym) (sym->sinfo->stab_other)
68 #define SYM_SIZE(sym) \
69 (sym->elfinfo ? sym->elfinfo->internal_elf_sym.st_size: sym->ssize)
71 /* The output formatting functions. */
72 static void print_object_filename_bsd (char *);
73 static void print_object_filename_sysv (char *);
74 static void print_object_filename_posix (char *);
75 static void print_archive_filename_bsd (char *);
76 static void print_archive_filename_sysv (char *);
77 static void print_archive_filename_posix (char *);
78 static void print_archive_member_bsd (char *, const char *);
79 static void print_archive_member_sysv (char *, const char *);
80 static void print_archive_member_posix (char *, const char *);
81 static void print_symbol_filename_bsd (bfd *, bfd *);
82 static void print_symbol_filename_sysv (bfd *, bfd *);
83 static void print_symbol_filename_posix (bfd *, bfd *);
84 static void print_value (bfd *, bfd_vma);
85 static void print_symbol_info_bsd (struct extended_symbol_info *, bfd *);
86 static void print_symbol_info_sysv (struct extended_symbol_info *, bfd *);
87 static void print_symbol_info_posix (struct extended_symbol_info *, bfd *);
89 /* Support for different output formats. */
92 /* Print the name of an object file given on the command line. */
93 void (*print_object_filename) (char *);
95 /* Print the name of an archive file given on the command line. */
96 void (*print_archive_filename) (char *);
98 /* Print the name of an archive member file. */
99 void (*print_archive_member) (char *, const char *);
101 /* Print the name of the file (and archive, if there is one)
102 containing a symbol. */
103 void (*print_symbol_filename) (bfd *, bfd *);
105 /* Print a line of information about a symbol. */
106 void (*print_symbol_info) (struct extended_symbol_info *, bfd *);
109 static struct output_fns formats[] =
111 {print_object_filename_bsd,
112 print_archive_filename_bsd,
113 print_archive_member_bsd,
114 print_symbol_filename_bsd,
115 print_symbol_info_bsd},
116 {print_object_filename_sysv,
117 print_archive_filename_sysv,
118 print_archive_member_sysv,
119 print_symbol_filename_sysv,
120 print_symbol_info_sysv},
121 {print_object_filename_posix,
122 print_archive_filename_posix,
123 print_archive_member_posix,
124 print_symbol_filename_posix,
125 print_symbol_info_posix}
128 /* Indices in `formats'. */
130 #define FORMAT_SYSV 1
131 #define FORMAT_POSIX 2
132 #define FORMAT_DEFAULT FORMAT_BSD
134 /* The output format to use. */
135 static struct output_fns *format = &formats[FORMAT_DEFAULT];
137 /* Command options. */
139 static int do_demangle = 0; /* Pretty print C++ symbol names. */
140 static int external_only = 0; /* Print external symbols only. */
141 static int defined_only = 0; /* Print defined symbols only. */
142 static int no_sort = 0; /* Don't sort; print syms in order found. */
143 static int print_debug_syms = 0;/* Print debugger-only symbols too. */
144 static int print_armap = 0; /* Describe __.SYMDEF data in archive files. */
145 static int print_size = 0; /* Print size of defined symbols. */
146 static int reverse_sort = 0; /* Sort in downward(alpha or numeric) order. */
147 static int sort_numerically = 0;/* Sort in numeric rather than alpha order. */
148 static int sort_by_size = 0; /* Sort by size of symbol. */
149 static int undefined_only = 0; /* Print undefined symbols only. */
150 static int dynamic = 0; /* Print dynamic symbols. */
151 static int show_version = 0; /* Show the version number. */
152 static int show_stats = 0; /* Show statistics. */
153 static int show_synthetic = 0; /* Display synthesized symbols too. */
154 static int line_numbers = 0; /* Print line numbers for symbols. */
155 static int allow_special_symbols = 0; /* Allow special symbols. */
157 /* When to print the names of files. Not mutually exclusive in SYSV format. */
158 static int filename_per_file = 0; /* Once per file, on its own line. */
159 static int filename_per_symbol = 0; /* Once per symbol, at start of line. */
161 /* Print formats for printing a symbol value. */
163 static char value_format[] = "%08lx";
165 #if BFD_HOST_64BIT_LONG
166 static char value_format[] = "%016lx";
168 /* We don't use value_format for this case. */
172 static int print_width = 16;
174 static int print_width = 8;
176 static int print_radix = 16;
177 /* Print formats for printing stab info. */
178 static char other_format[] = "%02x";
179 static char desc_format[] = "%04x";
181 static char *target = NULL;
183 /* Used to cache the line numbers for a BFD. */
184 static bfd *lineno_cache_bfd;
185 static bfd *lineno_cache_rel_bfd;
187 #define OPTION_TARGET 200
189 static struct option long_options[] =
191 {"debug-syms", no_argument, &print_debug_syms, 1},
192 {"demangle", optional_argument, 0, 'C'},
193 {"dynamic", no_argument, &dynamic, 1},
194 {"extern-only", no_argument, &external_only, 1},
195 {"format", required_argument, 0, 'f'},
196 {"help", no_argument, 0, 'h'},
197 {"line-numbers", no_argument, 0, 'l'},
198 {"no-cplus", no_argument, &do_demangle, 0}, /* Linux compatibility. */
199 {"no-demangle", no_argument, &do_demangle, 0},
200 {"no-sort", no_argument, &no_sort, 1},
201 {"numeric-sort", no_argument, &sort_numerically, 1},
202 {"portability", no_argument, 0, 'P'},
203 {"print-armap", no_argument, &print_armap, 1},
204 {"print-file-name", no_argument, 0, 'o'},
205 {"print-size", no_argument, 0, 'S'},
206 {"radix", required_argument, 0, 't'},
207 {"reverse-sort", no_argument, &reverse_sort, 1},
208 {"size-sort", no_argument, &sort_by_size, 1},
209 {"special-syms", no_argument, &allow_special_symbols, 1},
210 {"stats", no_argument, &show_stats, 1},
211 {"synthetic", no_argument, &show_synthetic, 1},
212 {"target", required_argument, 0, OPTION_TARGET},
213 {"defined-only", no_argument, &defined_only, 1},
214 {"undefined-only", no_argument, &undefined_only, 1},
215 {"version", no_argument, &show_version, 1},
216 {0, no_argument, 0, 0}
219 /* Some error-reporting functions. */
222 usage (FILE *stream, int status)
224 fprintf (stream, _("Usage: %s [option(s)] [file(s)]\n"), program_name);
225 fprintf (stream, _(" List symbols in [file(s)] (a.out by default).\n"));
226 fprintf (stream, _(" The options are:\n\
227 -a, --debug-syms Display debugger-only symbols\n\
228 -A, --print-file-name Print name of the input file before every symbol\n\
229 -B Same as --format=bsd\n\
230 -C, --demangle[=STYLE] Decode low-level symbol names into user-level names\n\
231 The STYLE, if specified, can be `auto' (the default),\n\
232 `gnu', `lucid', `arm', `hp', `edg', `gnu-v3', `java'\n\
234 --no-demangle Do not demangle low-level symbol names\n\
235 -D, --dynamic Display dynamic symbols instead of normal symbols\n\
236 --defined-only Display only defined symbols\n\
238 -f, --format=FORMAT Use the output format FORMAT. FORMAT can be `bsd',\n\
239 `sysv' or `posix'. The default is `bsd'\n\
240 -g, --extern-only Display only external symbols\n\
241 -l, --line-numbers Use debugging information to find a filename and\n\
242 line number for each symbol\n\
243 -n, --numeric-sort Sort symbols numerically by address\n\
245 -p, --no-sort Do not sort the symbols\n\
246 -P, --portability Same as --format=posix\n\
247 -r, --reverse-sort Reverse the sense of the sort\n\
248 -S, --print-size Print size of defined symbols\n\
249 -s, --print-armap Include index for symbols from archive members\n\
250 --size-sort Sort symbols by size\n\
251 --special-syms Include special symbols in the output\n\
252 --synthetic Display synthetic symbols as well\n\
253 -t, --radix=RADIX Use RADIX for printing symbol values\n\
254 --target=BFDNAME Specify the target object format as BFDNAME\n\
255 -u, --undefined-only Display only undefined symbols\n\
256 -X 32_64 (ignored)\n\
257 -h, --help Display this information\n\
258 -V, --version Display this program's version number\n\
260 list_supported_targets (program_name, stream);
262 fprintf (stream, _("Report bugs to %s.\n"), REPORT_BUGS_TO);
266 /* Set the radix for the symbol value and size according to RADIX. */
269 set_print_radix (char *radix)
282 value_format[4] = *radix;
284 #if BFD_HOST_64BIT_LONG
285 value_format[5] = *radix;
287 /* This case requires special handling for octal and decimal
291 other_format[3] = desc_format[3] = *radix;
294 fatal (_("%s: invalid radix"), radix);
299 set_output_format (char *f)
318 fatal (_("%s: invalid output format"), f);
320 format = &formats[i];
324 get_symbol_type (unsigned int type)
326 static char buff [32];
330 case STT_NOTYPE: return "NOTYPE";
331 case STT_OBJECT: return "OBJECT";
332 case STT_FUNC: return "FUNC";
333 case STT_SECTION: return "SECTION";
334 case STT_FILE: return "FILE";
335 case STT_COMMON: return "COMMON";
336 case STT_TLS: return "TLS";
338 if (type >= STT_LOPROC && type <= STT_HIPROC)
339 sprintf (buff, _("<processor specific>: %d"), type);
340 else if (type >= STT_LOOS && type <= STT_HIOS)
341 sprintf (buff, _("<OS specific>: %d"), type);
343 sprintf (buff, _("<unknown>: %d"), type);
348 /* Print symbol name NAME, read from ABFD, with printf format FORMAT,
349 demangling it if requested. */
352 print_symname (const char *format, const char *name, bfd *abfd)
354 if (do_demangle && *name)
356 char *res = demangle (abfd, name);
358 printf (format, res);
363 printf (format, name);
367 print_symdef_entry (bfd *abfd)
369 symindex idx = BFD_NO_MORE_SYMBOLS;
371 bfd_boolean everprinted = FALSE;
373 for (idx = bfd_get_next_mapent (abfd, idx, &thesym);
374 idx != BFD_NO_MORE_SYMBOLS;
375 idx = bfd_get_next_mapent (abfd, idx, &thesym))
380 printf (_("\nArchive index:\n"));
383 elt = bfd_get_elt_at_index (abfd, idx);
385 bfd_fatal ("bfd_get_elt_at_index");
386 if (thesym->name != (char *) NULL)
388 print_symname ("%s", thesym->name, abfd);
389 printf (" in %s\n", bfd_get_filename (elt));
394 /* Choose which symbol entries to print;
395 compact them downward to get rid of the rest.
396 Return the number of symbols to be printed. */
399 filter_symbols (bfd *abfd, bfd_boolean dynamic, void *minisyms,
400 long symcount, unsigned int size)
402 bfd_byte *from, *fromend, *to;
405 store = bfd_make_empty_symbol (abfd);
407 bfd_fatal (bfd_get_filename (abfd));
409 from = (bfd_byte *) minisyms;
410 fromend = from + symcount * size;
411 to = (bfd_byte *) minisyms;
413 for (; from < fromend; from += size)
420 sym = bfd_minisymbol_to_symbol (abfd, dynamic, (const void *) from, store);
422 bfd_fatal (bfd_get_filename (abfd));
425 keep = bfd_is_und_section (sym->section);
426 else if (external_only)
427 keep = ((sym->flags & BSF_GLOBAL) != 0
428 || (sym->flags & BSF_WEAK) != 0
429 || bfd_is_und_section (sym->section)
430 || bfd_is_com_section (sym->section));
435 && ! print_debug_syms
436 && (sym->flags & BSF_DEBUGGING) != 0)
441 && (bfd_is_abs_section (sym->section)
442 || bfd_is_und_section (sym->section)))
448 if (bfd_is_und_section (sym->section))
453 && bfd_is_target_special_symbol (abfd, sym)
454 && ! allow_special_symbols)
459 memcpy (to, from, size);
464 return (to - (bfd_byte *) minisyms) / size;
467 /* These globals are used to pass information into the sorting
469 static bfd *sort_bfd;
470 static bfd_boolean sort_dynamic;
471 static asymbol *sort_x;
472 static asymbol *sort_y;
474 /* Symbol-sorting predicates */
475 #define valueof(x) ((x)->section->vma + (x)->value)
477 /* Numeric sorts. Undefined symbols are always considered "less than"
478 defined symbols with zero values. Common symbols are not treated
479 specially -- i.e., their sizes are used as their "values". */
482 non_numeric_forward (const void *P_x, const void *P_y)
487 x = bfd_minisymbol_to_symbol (sort_bfd, sort_dynamic, P_x, sort_x);
488 y = bfd_minisymbol_to_symbol (sort_bfd, sort_dynamic, P_y, sort_y);
489 if (x == NULL || y == NULL)
490 bfd_fatal (bfd_get_filename (sort_bfd));
492 xn = bfd_asymbol_name (x);
493 yn = bfd_asymbol_name (y);
501 /* Solaris 2.5 has a bug in strcoll.
502 strcoll returns invalid values when confronted with empty strings. */
508 return strcoll (xn, yn);
510 return strcmp (xn, yn);
515 non_numeric_reverse (const void *x, const void *y)
517 return - non_numeric_forward (x, y);
521 numeric_forward (const void *P_x, const void *P_y)
526 x = bfd_minisymbol_to_symbol (sort_bfd, sort_dynamic, P_x, sort_x);
527 y = bfd_minisymbol_to_symbol (sort_bfd, sort_dynamic, P_y, sort_y);
528 if (x == NULL || y == NULL)
529 bfd_fatal (bfd_get_filename (sort_bfd));
531 xs = bfd_get_section (x);
532 ys = bfd_get_section (y);
534 if (bfd_is_und_section (xs))
536 if (! bfd_is_und_section (ys))
539 else if (bfd_is_und_section (ys))
541 else if (valueof (x) != valueof (y))
542 return valueof (x) < valueof (y) ? -1 : 1;
544 return non_numeric_forward (P_x, P_y);
548 numeric_reverse (const void *x, const void *y)
550 return - numeric_forward (x, y);
553 static int (*(sorters[2][2])) (const void *, const void *) =
555 { non_numeric_forward, non_numeric_reverse },
556 { numeric_forward, numeric_reverse }
559 /* This sort routine is used by sort_symbols_by_size. It is similar
560 to numeric_forward, but when symbols have the same value it sorts
561 by section VMA. This simplifies the sort_symbols_by_size code
562 which handles symbols at the end of sections. Also, this routine
563 tries to sort file names before other symbols with the same value.
564 That will make the file name have a zero size, which will make
565 sort_symbols_by_size choose the non file name symbol, leading to
566 more meaningful output. For similar reasons, this code sorts
567 gnu_compiled_* and gcc2_compiled before other symbols with the same
571 size_forward1 (const void *P_x, const void *P_y)
579 x = bfd_minisymbol_to_symbol (sort_bfd, sort_dynamic, P_x, sort_x);
580 y = bfd_minisymbol_to_symbol (sort_bfd, sort_dynamic, P_y, sort_y);
581 if (x == NULL || y == NULL)
582 bfd_fatal (bfd_get_filename (sort_bfd));
584 xs = bfd_get_section (x);
585 ys = bfd_get_section (y);
587 if (bfd_is_und_section (xs))
589 if (bfd_is_und_section (ys))
592 if (valueof (x) != valueof (y))
593 return valueof (x) < valueof (y) ? -1 : 1;
595 if (xs->vma != ys->vma)
596 return xs->vma < ys->vma ? -1 : 1;
598 xn = bfd_asymbol_name (x);
599 yn = bfd_asymbol_name (y);
603 /* The symbols gnu_compiled and gcc2_compiled convey even less
604 information than the file name, so sort them out first. */
606 xf = (strstr (xn, "gnu_compiled") != NULL
607 || strstr (xn, "gcc2_compiled") != NULL);
608 yf = (strstr (yn, "gnu_compiled") != NULL
609 || strstr (yn, "gcc2_compiled") != NULL);
616 /* We use a heuristic for the file name. It may not work on non
617 Unix systems, but it doesn't really matter; the only difference
618 is precisely which symbol names get printed. */
620 #define file_symbol(s, sn, snl) \
621 (((s)->flags & BSF_FILE) != 0 \
622 || ((sn)[(snl) - 2] == '.' \
623 && ((sn)[(snl) - 1] == 'o' \
624 || (sn)[(snl) - 1] == 'a')))
626 xf = file_symbol (x, xn, xnl);
627 yf = file_symbol (y, yn, ynl);
634 return non_numeric_forward (P_x, P_y);
637 /* This sort routine is used by sort_symbols_by_size. It is sorting
638 an array of size_sym structures into size order. */
641 size_forward2 (const void *P_x, const void *P_y)
643 const struct size_sym *x = (const struct size_sym *) P_x;
644 const struct size_sym *y = (const struct size_sym *) P_y;
646 if (x->size < y->size)
647 return reverse_sort ? 1 : -1;
648 else if (x->size > y->size)
649 return reverse_sort ? -1 : 1;
651 return sorters[0][reverse_sort] (x->minisym, y->minisym);
654 /* Sort the symbols by size. ELF provides a size but for other formats
655 we have to make a guess by assuming that the difference between the
656 address of a symbol and the address of the next higher symbol is the
660 sort_symbols_by_size (bfd *abfd, bfd_boolean dynamic, void *minisyms,
661 long symcount, unsigned int size,
662 struct size_sym **symsizesp)
664 struct size_sym *symsizes;
665 bfd_byte *from, *fromend;
667 asymbol *store_sym, *store_next;
669 qsort (minisyms, symcount, size, size_forward1);
671 /* We are going to return a special set of symbols and sizes to
673 symsizes = xmalloc (symcount * sizeof (struct size_sym));
674 *symsizesp = symsizes;
676 /* Note that filter_symbols has already removed all absolute and
677 undefined symbols. Here we remove all symbols whose size winds
679 from = (bfd_byte *) minisyms;
680 fromend = from + symcount * size;
687 sym = bfd_minisymbol_to_symbol (abfd, dynamic, (const void *) from,
690 bfd_fatal (bfd_get_filename (abfd));
693 for (; from < fromend; from += size)
700 if (from + size < fromend)
702 next = bfd_minisymbol_to_symbol (abfd,
704 (const void *) (from + size),
707 bfd_fatal (bfd_get_filename (abfd));
712 sec = bfd_get_section (sym);
714 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
715 sz = ((elf_symbol_type *) sym)->internal_elf_sym.st_size;
716 else if (bfd_is_com_section (sec))
720 if (from + size < fromend
721 && sec == bfd_get_section (next))
722 sz = valueof (next) - valueof (sym);
724 sz = (bfd_get_section_vma (abfd, sec)
725 + bfd_section_size (abfd, sec)
731 symsizes->minisym = (const void *) from;
739 store_sym = store_next;
743 symcount = symsizes - *symsizesp;
745 /* We must now sort again by size. */
746 qsort ((void *) *symsizesp, symcount, sizeof (struct size_sym), size_forward2);
751 /* This function is used to get the relocs for a particular section.
752 It is called via bfd_map_over_sections. */
755 get_relocs (bfd *abfd, asection *sec, void *dataarg)
757 struct get_relocs_info *data = (struct get_relocs_info *) dataarg;
761 if ((sec->flags & SEC_RELOC) == 0)
763 *data->relocs = NULL;
770 relsize = bfd_get_reloc_upper_bound (abfd, sec);
772 bfd_fatal (bfd_get_filename (abfd));
774 *data->relocs = xmalloc (relsize);
775 *data->relcount = bfd_canonicalize_reloc (abfd, sec, *data->relocs,
777 if (*data->relcount < 0)
778 bfd_fatal (bfd_get_filename (abfd));
786 /* Print a single symbol. */
789 print_symbol (bfd *abfd, asymbol *sym, bfd_vma ssize, bfd *archive_bfd)
792 struct extended_symbol_info info;
796 format->print_symbol_filename (archive_bfd, abfd);
798 bfd_get_symbol_info (abfd, sym, &syminfo);
799 info.sinfo = &syminfo;
801 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
802 info.elfinfo = (elf_symbol_type *) sym;
805 format->print_symbol_info (&info, abfd);
809 static asymbol **syms;
810 static long symcount;
811 const char *filename, *functionname;
814 /* We need to get the canonical symbols in order to call
815 bfd_find_nearest_line. This is inefficient, but, then, you
816 don't have to use --line-numbers. */
817 if (abfd != lineno_cache_bfd && syms != NULL)
826 symsize = bfd_get_symtab_upper_bound (abfd);
828 bfd_fatal (bfd_get_filename (abfd));
829 syms = xmalloc (symsize);
830 symcount = bfd_canonicalize_symtab (abfd, syms);
832 bfd_fatal (bfd_get_filename (abfd));
833 lineno_cache_bfd = abfd;
836 if (bfd_is_und_section (bfd_get_section (sym)))
838 static asection **secs;
839 static arelent ***relocs;
840 static long *relcount;
841 static unsigned int seccount;
845 /* For an undefined symbol, we try to find a reloc for the
846 symbol, and print the line number of the reloc. */
847 if (abfd != lineno_cache_rel_bfd && relocs != NULL)
849 for (i = 0; i < seccount; i++)
850 if (relocs[i] != NULL)
862 struct get_relocs_info info;
864 seccount = bfd_count_sections (abfd);
866 secs = xmalloc (seccount * sizeof *secs);
867 relocs = xmalloc (seccount * sizeof *relocs);
868 relcount = xmalloc (seccount * sizeof *relcount);
871 info.relocs = relocs;
872 info.relcount = relcount;
874 bfd_map_over_sections (abfd, get_relocs, (void *) &info);
875 lineno_cache_rel_bfd = abfd;
878 symname = bfd_asymbol_name (sym);
879 for (i = 0; i < seccount; i++)
883 for (j = 0; j < relcount[i]; j++)
888 if (r->sym_ptr_ptr != NULL
889 && (*r->sym_ptr_ptr)->section == sym->section
890 && (*r->sym_ptr_ptr)->value == sym->value
892 bfd_asymbol_name (*r->sym_ptr_ptr)) == 0
893 && bfd_find_nearest_line (abfd, secs[i], syms,
894 r->address, &filename,
895 &functionname, &lineno)
898 /* We only print the first one we find. */
899 printf ("\t%s:%u", filename, lineno);
906 else if (bfd_get_section (sym)->owner == abfd)
908 if ((bfd_find_line (abfd, syms, sym, &filename, &lineno)
909 || bfd_find_nearest_line (abfd, bfd_get_section (sym),
910 syms, sym->value, &filename,
911 &functionname, &lineno))
914 printf ("\t%s:%u", filename, lineno);
921 /* Print the symbols when sorting by size. */
924 print_size_symbols (bfd *abfd, bfd_boolean dynamic,
925 struct size_sym *symsizes, long symcount,
929 struct size_sym *from, *fromend;
931 store = bfd_make_empty_symbol (abfd);
933 bfd_fatal (bfd_get_filename (abfd));
936 fromend = from + symcount;
937 for (; from < fromend; from++)
942 sym = bfd_minisymbol_to_symbol (abfd, dynamic, from->minisym, store);
944 bfd_fatal (bfd_get_filename (abfd));
946 /* For elf we have already computed the correct symbol size. */
947 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
950 ssize = from->size - bfd_section_vma (abfd, bfd_get_section (sym));
952 print_symbol (abfd, sym, ssize, archive_bfd);
957 /* Print the symbols. If ARCHIVE_BFD is non-NULL, it is the archive
961 print_symbols (bfd *abfd, bfd_boolean dynamic, void *minisyms, long symcount,
962 unsigned int size, bfd *archive_bfd)
965 bfd_byte *from, *fromend;
967 store = bfd_make_empty_symbol (abfd);
969 bfd_fatal (bfd_get_filename (abfd));
971 from = (bfd_byte *) minisyms;
972 fromend = from + symcount * size;
973 for (; from < fromend; from += size)
977 sym = bfd_minisymbol_to_symbol (abfd, dynamic, from, store);
979 bfd_fatal (bfd_get_filename (abfd));
981 print_symbol (abfd, sym, (bfd_vma) 0, archive_bfd);
985 /* If ARCHIVE_BFD is non-NULL, it is the archive containing ABFD. */
988 display_rel_file (bfd *abfd, bfd *archive_bfd)
993 struct size_sym *symsizes;
997 if (!(bfd_get_file_flags (abfd) & HAS_SYMS))
999 non_fatal (_("%s: no symbols"), bfd_get_filename (abfd));
1004 symcount = bfd_read_minisymbols (abfd, dynamic, &minisyms, &size);
1006 bfd_fatal (bfd_get_filename (abfd));
1010 non_fatal (_("%s: no symbols"), bfd_get_filename (abfd));
1014 if (show_synthetic && size == sizeof (asymbol *))
1018 asymbol **static_syms = NULL;
1019 asymbol **dyn_syms = NULL;
1020 long static_count = 0;
1025 dyn_count = symcount;
1026 dyn_syms = minisyms;
1030 long storage = bfd_get_dynamic_symtab_upper_bound (abfd);
1032 static_count = symcount;
1033 static_syms = minisyms;
1037 dyn_syms = xmalloc (storage);
1038 dyn_count = bfd_canonicalize_dynamic_symtab (abfd, dyn_syms);
1040 bfd_fatal (bfd_get_filename (abfd));
1043 synth_count = bfd_get_synthetic_symtab (abfd, static_count, static_syms,
1044 dyn_count, dyn_syms, &synthsyms);
1045 if (synth_count > 0)
1051 new_mini = xmalloc ((symcount + synth_count + 1) * sizeof (*symp));
1053 memcpy (symp, minisyms, symcount * sizeof (*symp));
1055 for (i = 0; i < synth_count; i++)
1056 *symp++ = synthsyms + i;
1058 minisyms = new_mini;
1059 symcount += synth_count;
1063 /* Discard the symbols we don't want to print.
1064 It's OK to do this in place; we'll free the storage anyway
1065 (after printing). */
1067 symcount = filter_symbols (abfd, dynamic, minisyms, symcount, size);
1073 sort_dynamic = dynamic;
1074 sort_x = bfd_make_empty_symbol (abfd);
1075 sort_y = bfd_make_empty_symbol (abfd);
1076 if (sort_x == NULL || sort_y == NULL)
1077 bfd_fatal (bfd_get_filename (abfd));
1080 qsort (minisyms, symcount, size,
1081 sorters[sort_numerically][reverse_sort]);
1083 symcount = sort_symbols_by_size (abfd, dynamic, minisyms, symcount,
1088 print_symbols (abfd, dynamic, minisyms, symcount, size, archive_bfd);
1090 print_size_symbols (abfd, dynamic, symsizes, symcount, archive_bfd);
1096 display_archive (bfd *file)
1099 bfd *last_arfile = NULL;
1102 format->print_archive_filename (bfd_get_filename (file));
1105 print_symdef_entry (file);
1111 arfile = bfd_openr_next_archived_file (file, arfile);
1115 if (bfd_get_error () != bfd_error_no_more_archived_files)
1116 bfd_fatal (bfd_get_filename (file));
1120 if (bfd_check_format_matches (arfile, bfd_object, &matching))
1124 bfd_sprintf_vma (arfile, buf, (bfd_vma) -1);
1125 print_width = strlen (buf);
1126 format->print_archive_member (bfd_get_filename (file),
1127 bfd_get_filename (arfile));
1128 display_rel_file (arfile, file);
1132 bfd_nonfatal (bfd_get_filename (arfile));
1133 if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
1135 list_matching_formats (matching);
1140 if (last_arfile != NULL)
1142 bfd_close (last_arfile);
1143 lineno_cache_bfd = NULL;
1144 lineno_cache_rel_bfd = NULL;
1146 last_arfile = arfile;
1149 if (last_arfile != NULL)
1151 bfd_close (last_arfile);
1152 lineno_cache_bfd = NULL;
1153 lineno_cache_rel_bfd = NULL;
1158 display_file (char *filename)
1160 bfd_boolean retval = TRUE;
1164 if (get_file_size (filename) < 1)
1167 file = bfd_openr (filename, target);
1170 bfd_nonfatal (filename);
1174 if (bfd_check_format (file, bfd_archive))
1176 display_archive (file);
1178 else if (bfd_check_format_matches (file, bfd_object, &matching))
1182 bfd_sprintf_vma (file, buf, (bfd_vma) -1);
1183 print_width = strlen (buf);
1184 format->print_object_filename (filename);
1185 display_rel_file (file, NULL);
1189 bfd_nonfatal (filename);
1190 if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
1192 list_matching_formats (matching);
1198 if (!bfd_close (file))
1199 bfd_fatal (filename);
1201 lineno_cache_bfd = NULL;
1202 lineno_cache_rel_bfd = NULL;
1207 /* The following 3 groups of functions are called unconditionally,
1208 once at the start of processing each file of the appropriate type.
1209 They should check `filename_per_file' and `filename_per_symbol',
1210 as appropriate for their output format, to determine whether to
1213 /* Print the name of an object file given on the command line. */
1216 print_object_filename_bsd (char *filename)
1218 if (filename_per_file && !filename_per_symbol)
1219 printf ("\n%s:\n", filename);
1223 print_object_filename_sysv (char *filename)
1226 printf (_("\n\nUndefined symbols from %s:\n\n"), filename);
1228 printf (_("\n\nSymbols from %s:\n\n"), filename);
1229 if (print_width == 8)
1231 Name Value Class Type Size Line Section\n\n"));
1234 Name Value Class Type Size Line Section\n\n"));
1238 print_object_filename_posix (char *filename)
1240 if (filename_per_file && !filename_per_symbol)
1241 printf ("%s:\n", filename);
1244 /* Print the name of an archive file given on the command line. */
1247 print_archive_filename_bsd (char *filename)
1249 if (filename_per_file)
1250 printf ("\n%s:\n", filename);
1254 print_archive_filename_sysv (char *filename ATTRIBUTE_UNUSED)
1259 print_archive_filename_posix (char *filename ATTRIBUTE_UNUSED)
1263 /* Print the name of an archive member file. */
1266 print_archive_member_bsd (char *archive ATTRIBUTE_UNUSED,
1267 const char *filename)
1269 if (!filename_per_symbol)
1270 printf ("\n%s:\n", filename);
1274 print_archive_member_sysv (char *archive, const char *filename)
1277 printf (_("\n\nUndefined symbols from %s[%s]:\n\n"), archive, filename);
1279 printf (_("\n\nSymbols from %s[%s]:\n\n"), archive, filename);
1280 if (print_width == 8)
1282 Name Value Class Type Size Line Section\n\n"));
1285 Name Value Class Type Size Line Section\n\n"));
1289 print_archive_member_posix (char *archive, const char *filename)
1291 if (!filename_per_symbol)
1292 printf ("%s[%s]:\n", archive, filename);
1295 /* Print the name of the file (and archive, if there is one)
1296 containing a symbol. */
1299 print_symbol_filename_bsd (bfd *archive_bfd, bfd *abfd)
1301 if (filename_per_symbol)
1304 printf ("%s:", bfd_get_filename (archive_bfd));
1305 printf ("%s:", bfd_get_filename (abfd));
1310 print_symbol_filename_sysv (bfd *archive_bfd, bfd *abfd)
1312 if (filename_per_symbol)
1315 printf ("%s:", bfd_get_filename (archive_bfd));
1316 printf ("%s:", bfd_get_filename (abfd));
1321 print_symbol_filename_posix (bfd *archive_bfd, bfd *abfd)
1323 if (filename_per_symbol)
1326 printf ("%s[%s]: ", bfd_get_filename (archive_bfd),
1327 bfd_get_filename (abfd));
1329 printf ("%s: ", bfd_get_filename (abfd));
1333 /* Print a symbol value. */
1336 print_value (bfd *abfd ATTRIBUTE_UNUSED, bfd_vma val)
1338 #if ! defined (BFD64) || BFD_HOST_64BIT_LONG
1339 printf (value_format, val);
1341 /* We have a 64 bit value to print, but the host is only 32 bit. */
1342 if (print_radix == 16)
1343 bfd_fprintf_vma (abfd, stdout, val);
1349 s = buf + sizeof buf;
1353 *--s = (val % print_radix) + '0';
1356 while ((buf + sizeof buf - 1) - s < 16)
1363 /* Print a line of information about a symbol. */
1366 print_symbol_info_bsd (struct extended_symbol_info *info, bfd *abfd)
1368 if (bfd_is_undefined_symclass (SYM_TYPE (info)))
1370 if (print_width == 16)
1376 /* Normally we print the value of the symbol. If we are printing the
1377 size or sorting by size then we print its size, except for the
1378 (weird) special case where both flags are defined, in which case we
1379 print both values. This conforms to documented behaviour. */
1380 if (sort_by_size && !print_size)
1381 print_value (abfd, SYM_SIZE (info));
1383 print_value (abfd, SYM_VALUE (info));
1385 if (print_size && SYM_SIZE (info))
1388 print_value (abfd, SYM_SIZE (info));
1392 printf (" %c", SYM_TYPE (info));
1394 if (SYM_TYPE (info) == '-')
1398 printf (other_format, SYM_STAB_OTHER (info));
1400 printf (desc_format, SYM_STAB_DESC (info));
1401 printf (" %5s", SYM_STAB_NAME (info));
1403 print_symname (" %s", SYM_NAME (info), abfd);
1407 print_symbol_info_sysv (struct extended_symbol_info *info, bfd *abfd)
1409 print_symname ("%-20s|", SYM_NAME (info), abfd);
1411 if (bfd_is_undefined_symclass (SYM_TYPE (info)))
1413 if (print_width == 8)
1419 print_value (abfd, SYM_VALUE (info));
1421 printf ("| %c |", SYM_TYPE (info));
1423 if (SYM_TYPE (info) == '-')
1426 printf ("%18s| ", SYM_STAB_NAME (info)); /* (C) Type. */
1427 printf (desc_format, SYM_STAB_DESC (info)); /* Size. */
1428 printf ("| |"); /* Line, Section. */
1432 /* Type, Size, Line, Section */
1435 get_symbol_type (ELF_ST_TYPE (info->elfinfo->internal_elf_sym.st_info)));
1439 if (SYM_SIZE (info))
1440 print_value (abfd, SYM_SIZE (info));
1443 if (print_width == 8)
1450 printf("| |%s", info->elfinfo->symbol.section->name);
1457 print_symbol_info_posix (struct extended_symbol_info *info, bfd *abfd)
1459 print_symname ("%s ", SYM_NAME (info), abfd);
1460 printf ("%c ", SYM_TYPE (info));
1462 if (bfd_is_undefined_symclass (SYM_TYPE (info)))
1466 print_value (abfd, SYM_VALUE (info));
1468 if (SYM_SIZE (info))
1469 print_value (abfd, SYM_SIZE (info));
1474 main (int argc, char **argv)
1479 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
1480 setlocale (LC_MESSAGES, "");
1482 #if defined (HAVE_SETLOCALE)
1483 setlocale (LC_CTYPE, "");
1484 setlocale (LC_COLLATE, "");
1486 bindtextdomain (PACKAGE, LOCALEDIR);
1487 textdomain (PACKAGE);
1489 program_name = *argv;
1490 xmalloc_set_program_name (program_name);
1492 START_PROGRESS (program_name, 0);
1494 expandargv (&argc, &argv);
1497 set_default_bfd_target ();
1499 while ((c = getopt_long (argc, argv, "aABCDef:gHhlnopPrSst:uvVvX:",
1500 long_options, (int *) 0)) != EOF)
1505 print_debug_syms = 1;
1509 filename_per_symbol = 1;
1511 case 'B': /* For MIPS compatibility. */
1512 set_output_format ("bsd");
1518 enum demangling_styles style;
1520 style = cplus_demangle_name_to_style (optarg);
1521 if (style == unknown_demangling)
1522 fatal (_("unknown demangling style `%s'"),
1525 cplus_demangle_set_style (style);
1532 /* Ignored for HP/UX compatibility. */
1535 set_output_format (optarg);
1548 sort_numerically = 1;
1554 set_output_format ("posix");
1566 set_print_radix (optarg);
1575 /* Ignored for (partial) AIX compatibility. On AIX, the
1576 argument has values 32, 64, or 32_64, and specifies that
1577 only 32-bit, only 64-bit, or both kinds of objects should
1578 be examined. The default is 32. So plain AIX nm on a
1579 library archive with both kinds of objects will ignore
1580 the 64-bit ones. For GNU nm, the default is and always
1581 has been -X 32_64, and other options are not supported. */
1582 if (strcmp (optarg, "32_64") != 0)
1583 fatal (_("Only -X 32_64 is supported"));
1586 case OPTION_TARGET: /* --target */
1590 case 0: /* A long option that just sets a flag. */
1599 print_version ("nm");
1601 if (sort_by_size && undefined_only)
1603 non_fatal (_("Using the --size-sort and --undefined-only options together"));
1604 non_fatal (_("will produce no output, since undefined symbols have no size."));
1608 /* OK, all options now parsed. If no filename specified, do a.out. */
1610 return !display_file ("a.out");
1614 if (argc - optind > 1)
1615 filename_per_file = 1;
1617 /* We were given several filenames to do. */
1618 while (optind < argc)
1621 if (!display_file (argv[optind++]))
1625 END_PROGRESS (program_name);
1630 char *lim = (char *) sbrk (0);
1632 non_fatal (_("data size %ld"), (long) (lim - (char *) &environ));