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-rw-r--r--binutils/nm.c283
1 files changed, 246 insertions, 37 deletions
diff --git a/binutils/nm.c b/binutils/nm.c
index 8350368..204c6a2 100644
--- a/binutils/nm.c
+++ b/binutils/nm.c
@@ -1,5 +1,5 @@
/* nm.c -- Describe symbol table of a rel file.
- Copyright 1991, 92, 93, 94 Free Software Foundation, Inc.
+ Copyright 1991, 92, 93, 94, 95, 96, 97, 1998 Free Software Foundation, Inc.
This file is part of GNU Binutils.
@@ -35,6 +35,29 @@ struct size_sym
bfd_vma size;
};
+/* When fetching relocs, we use this structure to pass information to
+ get_relocs. */
+
+struct get_relocs_info
+{
+ asection **secs;
+ arelent ***relocs;
+ long *relcount;
+ asymbol **syms;
+};
+
+static void
+usage PARAMS ((FILE *, int));
+
+static void
+set_print_radix PARAMS ((char *));
+
+static void
+set_output_format PARAMS ((char *));
+
+static void
+display_archive PARAMS ((bfd *));
+
static boolean
display_file PARAMS ((char *filename));
@@ -55,6 +78,9 @@ static void
print_size_symbols PARAMS ((bfd *, boolean, struct size_sym *, long, bfd *));
static void
+print_symname PARAMS ((const char *, const char *, bfd *));
+
+static void
print_symbol PARAMS ((bfd *, asymbol *, bfd *));
static void
@@ -134,6 +160,8 @@ print_symbol_info_sysv PARAMS ((symbol_info * info, bfd * abfd));
static void
print_symbol_info_posix PARAMS ((symbol_info * info, bfd * abfd));
+static void
+get_relocs PARAMS ((bfd *, asection *, PTR));
/* Support for different output formats. */
struct output_fns
@@ -187,6 +215,7 @@ static struct output_fns *format = &formats[FORMAT_DEFAULT];
static int do_demangle = 0; /* Pretty print C++ symbol names. */
static int external_only = 0; /* print external symbols only */
+static int defined_only = 0; /* Print defined symbols only */
static int no_sort = 0; /* don't sort; print syms in order found */
static int print_debug_syms = 0; /* print debugger-only symbols too */
static int print_armap = 0; /* describe __.SYMDEF data in archive files. */
@@ -197,6 +226,7 @@ static int undefined_only = 0; /* print undefined symbols only */
static int dynamic = 0; /* print dynamic symbols. */
static int show_version = 0; /* show the version number */
static int show_stats = 0; /* show statistics */
+static int line_numbers = 0; /* print line numbers for symbols */
/* When to print the names of files. Not mutually exclusive in SYSV format. */
static int filename_per_file = 0; /* Once per file, on its own line. */
@@ -217,11 +247,11 @@ static int print_radix = 16;
static char other_format[] = "%02x";
static char desc_format[] = "%04x";
-/* IMPORT */
-extern char *program_name;
-extern char *program_version;
-extern char *target;
-extern int print_version;
+static char *target = NULL;
+
+/* Used to cache the line numbers for a BFD. */
+static bfd *lineno_cache_bfd;
+static bfd *lineno_cache_rel_bfd;
static struct option long_options[] =
{
@@ -231,6 +261,7 @@ static struct option long_options[] =
{"extern-only", no_argument, &external_only, 1},
{"format", required_argument, 0, 'f'},
{"help", no_argument, 0, 'h'},
+ {"line-numbers", no_argument, 0, 'l'},
{"no-cplus", no_argument, &do_demangle, 0}, /* Linux compatibility. */
{"no-demangle", no_argument, &do_demangle, 0},
{"no-sort", no_argument, &no_sort, 1},
@@ -243,6 +274,7 @@ static struct option long_options[] =
{"size-sort", no_argument, &sort_by_size, 1},
{"stats", no_argument, &show_stats, 1},
{"target", required_argument, 0, 200},
+ {"defined-only", no_argument, &defined_only, 1},
{"undefined-only", no_argument, &undefined_only, 1},
{"version", no_argument, &show_version, 1},
{0, no_argument, 0, 0}
@@ -250,27 +282,30 @@ static struct option long_options[] =
/* Some error-reporting functions */
-void
+static void
usage (stream, status)
FILE *stream;
int status;
{
- fprintf (stream, "\
-Usage: %s [-aABCDgnopPrsuvV] [-t radix] [--radix=radix] [--target=bfdname]\n\
+ fprintf (stream, _("\
+Usage: %s [-aABCDglnopPrsuvV] [-t radix] [--radix=radix] [--target=bfdname]\n\
[--debug-syms] [--extern-only] [--print-armap] [--print-file-name]\n\
[--numeric-sort] [--no-sort] [--reverse-sort] [--size-sort]\n\
[--undefined-only] [--portability] [-f {bsd,sysv,posix}]\n\
[--format={bsd,sysv,posix}] [--demangle] [--no-demangle] [--dynamic]\n\
+ [--defined-only] [--line-numbers]\n\
[--version] [--help]\n\
- [file...]\n",
+ [file...]\n"),
program_name);
list_supported_targets (program_name, stream);
+ if (status == 0)
+ fprintf (stream, _("Report bugs to bug-gnu-utils@gnu.org\n"));
exit (status);
}
/* Set the radix for the symbol value and size according to RADIX. */
-void
+static void
set_print_radix (radix)
char *radix;
{
@@ -297,12 +332,12 @@ set_print_radix (radix)
other_format[3] = desc_format[3] = *radix;
break;
default:
- fprintf (stderr, "%s: %s: invalid radix\n", program_name, radix);
+ fprintf (stderr, _("%s: %s: invalid radix\n"), program_name, radix);
exit (1);
}
}
-void
+static void
set_output_format (f)
char *f;
{
@@ -323,7 +358,7 @@ set_output_format (f)
i = FORMAT_SYSV;
break;
default:
- fprintf (stderr, "%s: %s: invalid output format\n", program_name, f);
+ fprintf (stderr, _("%s: %s: invalid output format\n"), program_name, f);
exit (1);
}
format = &formats[i];
@@ -343,8 +378,9 @@ main (argc, argv)
START_PROGRESS (program_name, 0);
bfd_init ();
+ set_default_bfd_target ();
- while ((c = getopt_long (argc, argv, "aABCDef:gnopPrst:uvV", long_options, (int *) 0)) != EOF)
+ while ((c = getopt_long (argc, argv, "aABCDef:glnopPrst:uvV", long_options, (int *) 0)) != EOF)
{
switch (c)
{
@@ -375,6 +411,9 @@ main (argc, argv)
break;
case 'h':
usage (stdout, 0);
+ case 'l':
+ line_numbers = 1;
+ break;
case 'n':
case 'v':
sort_numerically = 1;
@@ -414,10 +453,7 @@ main (argc, argv)
}
if (show_version)
- {
- printf ("GNU %s version %s\n", program_name, program_version);
- exit (0);
- }
+ print_version ("nm");
/* OK, all options now parsed. If no filename specified, do a.out. */
if (optind == argc)
@@ -444,7 +480,7 @@ main (argc, argv)
extern char **environ;
char *lim = (char *) sbrk (0);
- fprintf (stderr, "%s: data size %ld\n", program_name,
+ fprintf (stderr, _("%s: data size %ld\n"), program_name,
(long) (lim - (char *) &environ));
}
#endif
@@ -496,12 +532,20 @@ display_archive (file)
}
if (last_arfile != NULL)
- bfd_close (last_arfile);
+ {
+ bfd_close (last_arfile);
+ lineno_cache_bfd = NULL;
+ lineno_cache_rel_bfd = NULL;
+ }
last_arfile = arfile;
}
if (last_arfile != NULL)
- bfd_close (last_arfile);
+ {
+ bfd_close (last_arfile);
+ lineno_cache_bfd = NULL;
+ lineno_cache_rel_bfd = NULL;
+ }
}
static boolean
@@ -542,6 +586,9 @@ display_file (filename)
if (bfd_close (file) == false)
bfd_fatal (filename);
+ lineno_cache_bfd = NULL;
+ lineno_cache_rel_bfd = NULL;
+
return retval;
}
@@ -745,7 +792,7 @@ sort_symbols_by_size (abfd, dynamic, minisyms, symcount, size, symsizesp)
{
struct size_sym *symsizes;
bfd_byte *from, *fromend;
- asymbol *sym;
+ asymbol *sym = NULL;
asymbol *store_sym, *store_next;
qsort (minisyms, symcount, size, size_forward1);
@@ -789,6 +836,8 @@ sort_symbols_by_size (abfd, dynamic, minisyms, symcount, size, symsizesp)
if (next == NULL)
bfd_fatal (bfd_get_filename (abfd));
}
+ else
+ next = NULL;
sec = bfd_get_section (sym);
@@ -843,7 +892,7 @@ display_rel_file (abfd, archive_bfd)
{
if (!(bfd_get_file_flags (abfd) & HAS_SYMS))
{
- printf ("No symbols in \"%s\".\n", bfd_get_filename (abfd));
+ printf (_("No symbols in \"%s\".\n"), bfd_get_filename (abfd));
return;
}
}
@@ -854,7 +903,7 @@ display_rel_file (abfd, archive_bfd)
if (symcount == 0)
{
- fprintf (stderr, "%s: no symbols\n", bfd_get_filename (abfd));
+ fprintf (stderr, _("%s: no symbols\n"), bfd_get_filename (abfd));
return;
}
@@ -928,6 +977,7 @@ filter_symbols (abfd, dynamic, minisyms, symcount, size)
keep = bfd_is_und_section (sym->section);
else if (external_only)
keep = ((sym->flags & BSF_GLOBAL) != 0
+ || (sym->flags & BSF_WEAK) != 0
|| bfd_is_und_section (sym->section)
|| bfd_is_com_section (sym->section));
else
@@ -944,6 +994,13 @@ filter_symbols (abfd, dynamic, minisyms, symcount, size)
|| bfd_is_und_section (sym->section)))
keep = 0;
+ if (keep
+ && defined_only)
+ {
+ if (bfd_is_und_section (sym->section))
+ keep = 0;
+ }
+
if (keep)
{
memcpy (to, from, size);
@@ -959,7 +1016,8 @@ filter_symbols (abfd, dynamic, minisyms, symcount, size)
static void
print_symname (format, name, abfd)
- char *format, *name;
+ const char *format;
+ const char *name;
bfd *abfd;
{
if (do_demangle && *name)
@@ -1067,7 +1125,7 @@ print_symbol (abfd, sym, archive_bfd)
if (undefined_only)
{
if (bfd_is_und_section (bfd_get_section (sym)))
- print_symname ("%s\n", bfd_asymbol_name (sym), abfd);
+ print_symname ("%s", bfd_asymbol_name (sym), abfd);
}
else
{
@@ -1075,8 +1133,121 @@ print_symbol (abfd, sym, archive_bfd)
bfd_get_symbol_info (abfd, sym, &syminfo);
(*format->print_symbol_info) (&syminfo, abfd);
- putchar ('\n');
}
+
+ if (line_numbers)
+ {
+ static asymbol **syms;
+ static long symcount;
+ const char *filename, *functionname;
+ unsigned int lineno;
+
+ /* We need to get the canonical symbols in order to call
+ bfd_find_nearest_line. This is inefficient, but, then, you
+ don't have to use --line-numbers. */
+ if (abfd != lineno_cache_bfd && syms != NULL)
+ {
+ free (syms);
+ syms = NULL;
+ }
+ if (syms == NULL)
+ {
+ long symsize;
+
+ symsize = bfd_get_symtab_upper_bound (abfd);
+ if (symsize < 0)
+ bfd_fatal (bfd_get_filename (abfd));
+ syms = (asymbol **) xmalloc (symsize);
+ symcount = bfd_canonicalize_symtab (abfd, syms);
+ if (symcount < 0)
+ bfd_fatal (bfd_get_filename (abfd));
+ lineno_cache_bfd = abfd;
+ }
+
+ if (bfd_is_und_section (bfd_get_section (sym)))
+ {
+ static asection **secs;
+ static arelent ***relocs;
+ static long *relcount;
+ static unsigned int seccount;
+ unsigned int i;
+ const char *symname;
+
+ /* For an undefined symbol, we try to find a reloc for the
+ symbol, and print the line number of the reloc. */
+
+ if (abfd != lineno_cache_rel_bfd && relocs != NULL)
+ {
+ for (i = 0; i < seccount; i++)
+ if (relocs[i] != NULL)
+ free (relocs[i]);
+ free (secs);
+ free (relocs);
+ free (relcount);
+ secs = NULL;
+ relocs = NULL;
+ relcount = NULL;
+ }
+
+ if (relocs == NULL)
+ {
+ struct get_relocs_info info;
+
+ seccount = bfd_count_sections (abfd);
+
+ secs = (asection **) xmalloc (seccount * sizeof *secs);
+ relocs = (arelent ***) xmalloc (seccount * sizeof *relocs);
+ relcount = (long *) xmalloc (seccount * sizeof *relcount);
+
+ info.secs = secs;
+ info.relocs = relocs;
+ info.relcount = relcount;
+ info.syms = syms;
+ bfd_map_over_sections (abfd, get_relocs, (PTR) &info);
+ lineno_cache_rel_bfd = abfd;
+ }
+
+ symname = bfd_asymbol_name (sym);
+ for (i = 0; i < seccount; i++)
+ {
+ long j;
+
+ for (j = 0; j < relcount[i]; j++)
+ {
+ arelent *r;
+
+ r = relocs[i][j];
+ if (r->sym_ptr_ptr != NULL
+ && (*r->sym_ptr_ptr)->section == sym->section
+ && (*r->sym_ptr_ptr)->value == sym->value
+ && strcmp (symname,
+ bfd_asymbol_name (*r->sym_ptr_ptr)) == 0
+ && bfd_find_nearest_line (abfd, secs[i], syms,
+ r->address, &filename,
+ &functionname, &lineno))
+ {
+ /* We only print the first one we find. */
+ printf ("\t%s:%u", filename, lineno);
+ i = seccount;
+ break;
+ }
+ }
+ }
+ }
+ else if (bfd_get_section (sym)->owner == abfd)
+ {
+ if (bfd_find_nearest_line (abfd, bfd_get_section (sym), syms,
+ sym->value, &filename, &functionname,
+ &lineno)
+ && filename != NULL
+ && lineno != 0)
+ {
+ printf ("\t%s:%u", filename, lineno);
+ }
+ }
+ }
+
+ putchar ('\n');
}
/* The following 3 groups of functions are called unconditionally,
@@ -1100,11 +1271,11 @@ print_object_filename_sysv (filename)
char *filename;
{
if (undefined_only)
- printf ("\n\nUndefined symbols from %s:\n\n", filename);
+ printf (_("\n\nUndefined symbols from %s:\n\n"), filename);
else
- printf ("\n\nSymbols from %s:\n\n", filename);
- printf ("\
-Name Value Class Type Size Line Section\n\n");
+ printf (_("\n\nSymbols from %s:\n\n"), filename);
+ printf (_("\
+Name Value Class Type Size Line Section\n\n"));
}
static void
@@ -1154,11 +1325,11 @@ print_archive_member_sysv (archive, filename)
CONST char *filename;
{
if (undefined_only)
- printf ("\n\nUndefined symbols from %s[%s]:\n\n", archive, filename);
+ printf (_("\n\nUndefined symbols from %s[%s]:\n\n"), archive, filename);
else
- printf ("\n\nSymbols from %s[%s]:\n\n", archive, filename);
- printf ("\
-Name Value Class Type Size Line Section\n\n");
+ printf (_("\n\nSymbols from %s[%s]:\n\n"), archive, filename);
+ printf (_("\
+Name Value Class Type Size Line Section\n\n"));
}
static void
@@ -1327,7 +1498,7 @@ print_symdef_entry (abfd)
bfd *elt;
if (!everprinted)
{
- printf ("\nArchive index:\n");
+ printf (_("\nArchive index:\n"));
everprinted = true;
}
elt = bfd_get_elt_at_index (abfd, idx);
@@ -1340,3 +1511,41 @@ print_symdef_entry (abfd)
}
}
}
+
+/* This function is used to get the relocs for a particular section.
+ It is called via bfd_map_over_sections. */
+
+static void
+get_relocs (abfd, sec, dataarg)
+ bfd *abfd;
+ asection *sec;
+ PTR dataarg;
+{
+ struct get_relocs_info *data = (struct get_relocs_info *) dataarg;
+
+ *data->secs = sec;
+
+ if ((sec->flags & SEC_RELOC) == 0)
+ {
+ *data->relocs = NULL;
+ *data->relcount = 0;
+ }
+ else
+ {
+ long relsize;
+
+ relsize = bfd_get_reloc_upper_bound (abfd, sec);
+ if (relsize < 0)
+ bfd_fatal (bfd_get_filename (abfd));
+
+ *data->relocs = (arelent **) xmalloc (relsize);
+ *data->relcount = bfd_canonicalize_reloc (abfd, sec, *data->relocs,
+ data->syms);
+ if (*data->relcount < 0)
+ bfd_fatal (bfd_get_filename (abfd));
+ }
+
+ ++data->secs;
+ ++data->relocs;
+ ++data->relcount;
+}
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