/* nm.c -- Describe symbol table of a rel file.
- Copyright (C) 1991-2016 Free Software Foundation, Inc.
+ Copyright (C) 1991-2019 Free Software Foundation, Inc.
This file is part of GNU Binutils.
(sym->elfinfo ? sym->elfinfo->internal_elf_sym.st_size: sym->ssize)
/* The output formatting functions. */
-static void print_object_filename_bsd (char *);
-static void print_object_filename_sysv (char *);
-static void print_object_filename_posix (char *);
-static void print_archive_filename_bsd (char *);
-static void print_archive_filename_sysv (char *);
-static void print_archive_filename_posix (char *);
-static void print_archive_member_bsd (char *, const char *);
-static void print_archive_member_sysv (char *, const char *);
-static void print_archive_member_posix (char *, const char *);
+static void print_object_filename_bsd (const char *);
+static void print_object_filename_sysv (const char *);
+static void print_object_filename_posix (const char *);
+static void print_archive_filename_bsd (const char *);
+static void print_archive_filename_sysv (const char *);
+static void print_archive_filename_posix (const char *);
+static void print_archive_member_bsd (const char *, const char *);
+static void print_archive_member_sysv (const char *, const char *);
+static void print_archive_member_posix (const char *, const char *);
static void print_symbol_filename_bsd (bfd *, bfd *);
static void print_symbol_filename_sysv (bfd *, bfd *);
static void print_symbol_filename_posix (bfd *, bfd *);
struct output_fns
{
/* Print the name of an object file given on the command line. */
- void (*print_object_filename) (char *);
+ void (*print_object_filename) (const char *);
/* Print the name of an archive file given on the command line. */
- void (*print_archive_filename) (char *);
+ void (*print_archive_filename) (const char *);
/* Print the name of an archive member file. */
- void (*print_archive_member) (char *, const char *);
+ void (*print_archive_member) (const char *, const char *);
/* Print the name of the file (and archive, if there is one)
containing a symbol. */
/* The output format to use. */
static struct output_fns *format = &formats[FORMAT_DEFAULT];
+static unsigned int print_format = FORMAT_DEFAULT;
+static const char *print_format_string = NULL;
/* Command options. */
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 show_synthetic = 0; /* Display synthesized symbols too. */
static int line_numbers = 0; /* Print line numbers for symbols. */
static int allow_special_symbols = 0; /* Allow special symbols. */
static int with_symbol_versions = 0; /* Include symbol version information in the output. */
+static int demangle_flags = DMGL_ANSI | DMGL_PARAMS;
+
/* 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. */
static int filename_per_symbol = 0; /* Once per symbol, at start of line. */
-/* Print formats for printing a symbol value. */
-static char value_format_32bit[] = "%08lx";
-#if BFD_HOST_64BIT_LONG
-static char value_format_64bit[] = "%016lx";
-#elif BFD_HOST_64BIT_LONG_LONG
-#ifndef __MSVCRT__
-static char value_format_64bit[] = "%016llx";
-#else
-static char value_format_64bit[] = "%016I64x";
-#endif
-#endif
static int print_width = 0;
static int print_radix = 16;
/* Print formats for printing stab info. */
static bfd *lineno_cache_bfd;
static bfd *lineno_cache_rel_bfd;
-#define OPTION_TARGET 200
-#define OPTION_PLUGIN (OPTION_TARGET + 1)
-#define OPTION_SIZE_SORT (OPTION_PLUGIN + 1)
+enum long_option_values
+{
+ OPTION_TARGET = 200,
+ OPTION_PLUGIN,
+ OPTION_SIZE_SORT,
+ OPTION_RECURSE_LIMIT,
+ OPTION_NO_RECURSE_LIMIT
+};
static struct option long_options[] =
{
{"line-numbers", no_argument, 0, 'l'},
{"no-cplus", no_argument, &do_demangle, 0}, /* Linux compatibility. */
{"no-demangle", no_argument, &do_demangle, 0},
+ {"no-recurse-limit", no_argument, NULL, OPTION_NO_RECURSE_LIMIT},
+ {"no-recursion-limit", no_argument, NULL, OPTION_NO_RECURSE_LIMIT},
{"no-sort", no_argument, 0, 'p'},
{"numeric-sort", no_argument, 0, 'n'},
{"plugin", required_argument, 0, OPTION_PLUGIN},
{"print-file-name", no_argument, 0, 'o'},
{"print-size", no_argument, 0, 'S'},
{"radix", required_argument, 0, 't'},
+ {"recurse-limit", no_argument, NULL, OPTION_RECURSE_LIMIT},
+ {"recursion-limit", no_argument, NULL, OPTION_RECURSE_LIMIT},
{"reverse-sort", no_argument, &reverse_sort, 1},
{"size-sort", no_argument, 0, OPTION_SIZE_SORT},
{"special-syms", no_argument, &allow_special_symbols, 1},
- {"stats", no_argument, &show_stats, 1},
{"synthetic", no_argument, &show_synthetic, 1},
{"target", required_argument, 0, OPTION_TARGET},
{"defined-only", no_argument, &defined_only, 1},
`gnu', `lucid', `arm', `hp', `edg', `gnu-v3', `java'\n\
or `gnat'\n\
--no-demangle Do not demangle low-level symbol names\n\
+ --recurse-limit Enable a demangling recursion limit. This is the default.\n\
+ --no-recurse-limit Disable a demangling recursion limit.\n\
-D, --dynamic Display dynamic symbols instead of normal symbols\n\
--defined-only Display only defined symbols\n\
-e (ignored)\n\
{
switch (*radix)
{
- case 'x':
- break;
- case 'd':
- case 'o':
- if (*radix == 'd')
- print_radix = 10;
- else
- print_radix = 8;
- value_format_32bit[4] = *radix;
-#if BFD_HOST_64BIT_LONG
- value_format_64bit[5] = *radix;
-#elif BFD_HOST_64BIT_LONG_LONG
-#ifndef __MSVCRT__
- value_format_64bit[6] = *radix;
-#else
- value_format_64bit[7] = *radix;
-#endif
-#endif
- other_format[3] = desc_format[3] = *radix;
- break;
+ case 'x': print_radix = 16; break;
+ case 'd': print_radix = 10; break;
+ case 'o': print_radix = 8; break;
+
default:
fatal (_("%s: invalid radix"), radix);
}
+
+ other_format[3] = desc_format[3] = *radix;
}
static void
fatal (_("%s: invalid output format"), f);
}
format = &formats[i];
+ print_format = i;
}
\f
static const char *
{
if (do_demangle && *name)
{
- char *res = bfd_demangle (abfd, name, DMGL_ANSI | DMGL_PARAMS);
+ char *res = bfd_demangle (abfd, name, demangle_flags);
if (res != NULL)
{
}
}
\f
+
+/* True when we can report missing plugin error. */
+bfd_boolean report_plugin_err = TRUE;
+
/* Choose which symbol entries to print;
compact them downward to get rid of the rest.
Return the number of symbols to be printed. */
if (sym == NULL)
bfd_fatal (bfd_get_filename (abfd));
- if (strcmp (sym->name, "__gnu_lto_slim") == 0)
- non_fatal (_("%s: plugin needed to handle lto object"),
- bfd_get_filename (abfd));
+ if (sym->name[0] == '_'
+ && sym->name[1] == '_'
+ && strcmp (sym->name + (sym->name[2] == '_'), "__gnu_lto_slim") == 0
+ && report_plugin_err)
+ {
+ report_plugin_err = FALSE;
+ non_fatal (_("%s: plugin needed to handle lto object"),
+ bfd_get_filename (abfd));
+ }
if (undefined_only)
keep = bfd_is_und_section (sym->section);
if (x == NULL || y == NULL)
bfd_fatal (bfd_get_filename (sort_bfd));
- xs = bfd_get_section (x);
- ys = bfd_get_section (y);
+ xs = bfd_asymbol_section (x);
+ ys = bfd_asymbol_section (y);
if (bfd_is_und_section (xs))
{
if (x == NULL || y == NULL)
bfd_fatal (bfd_get_filename (sort_bfd));
- xs = bfd_get_section (x);
- ys = bfd_get_section (y);
+ xs = bfd_asymbol_section (x);
+ ys = bfd_asymbol_section (y);
if (bfd_is_und_section (xs))
abort ();
#define file_symbol(s, sn, snl) \
(((s)->flags & BSF_FILE) != 0 \
- || ((sn)[(snl) - 2] == '.' \
+ || ((snl) > 2 \
+ && (sn)[(snl) - 2] == '.' \
&& ((sn)[(snl) - 1] == 'o' \
|| (sn)[(snl) - 1] == 'a')))
else
next = NULL;
- sec = bfd_get_section (sym);
+ sec = bfd_asymbol_section (sym);
- if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
+ /* Synthetic symbols don't have a full type set of data available, thus
+ we can't rely on that information for the symbol size. Ditto for
+ bfd/section.c:global_syms like *ABS*. */
+ if ((sym->flags & (BSF_SECTION_SYM | BSF_SYNTHETIC)) == 0
+ && bfd_get_flavour (abfd) == bfd_target_elf_flavour)
sz = ((elf_symbol_type *) sym)->internal_elf_sym.st_size;
- else if (bfd_is_com_section (sec))
+ else if ((sym->flags & (BSF_SECTION_SYM | BSF_SYNTHETIC)) == 0
+ && bfd_is_com_section (sec))
sz = sym->value;
else
{
if (from + size < fromend
- && sec == bfd_get_section (next))
+ && sec == bfd_asymbol_section (next))
sz = valueof (next) - valueof (sym);
else
- sz = (bfd_get_section_vma (abfd, sec)
- + bfd_section_size (abfd, sec)
+ sz = (bfd_section_vma (sec)
+ + bfd_section_size (sec)
- valueof (sym));
}
info.sinfo = &syminfo;
info.ssize = ssize;
- /* Synthetic symbols do not have a full symbol type set of data available. */
- if ((sym->flags & BSF_SYNTHETIC) != 0)
+ /* Synthetic symbols do not have a full symbol type set of data available.
+ Nor do bfd/section.c:global_syms like *ABS*. */
+ if ((sym->flags & (BSF_SECTION_SYM | BSF_SYNTHETIC)) != 0)
{
info.elfinfo = NULL;
info.coffinfo = NULL;
const char * version_string = NULL;
bfd_boolean hidden = FALSE;
- if ((sym->flags & BSF_SYNTHETIC) == 0)
+ if ((sym->flags & (BSF_SECTION_SYM | BSF_SYNTHETIC)) == 0)
version_string = bfd_get_symbol_version_string (abfd, sym, &hidden);
- if (bfd_is_und_section (bfd_get_section (sym)))
+ if (bfd_is_und_section (bfd_asymbol_section (sym)))
hidden = TRUE;
if (version_string && *version_string != '\0')
lineno_cache_bfd = abfd;
}
- if (bfd_is_und_section (bfd_get_section (sym)))
+ if (bfd_is_und_section (bfd_asymbol_section (sym)))
{
static asection **secs;
static arelent ***relocs;
}
}
}
- else if (bfd_get_section (sym)->owner == abfd)
+ else if (bfd_asymbol_section (sym)->owner == abfd)
{
if ((bfd_find_line (abfd, syms, sym, &filename, &lineno)
- || bfd_find_nearest_line (abfd, bfd_get_section (sym),
+ || bfd_find_nearest_line (abfd, bfd_asymbol_section (sym),
syms, sym->value, &filename,
&functionname, &lineno))
&& filename != NULL
void *minisyms;
unsigned int size;
struct size_sym *symsizes;
+ asymbol *synthsyms = NULL;
if (! dynamic)
{
if (show_synthetic && size == sizeof (asymbol *))
{
- asymbol *synthsyms;
asymbol **static_syms = NULL;
asymbol **dyn_syms = NULL;
long static_count = 0;
if (synth_count > 0)
{
asymbol **symp;
- void *new_mini;
long i;
- new_mini = xmalloc ((symcount + synth_count + 1) * sizeof (*symp));
- symp = (asymbol **) new_mini;
- memcpy (symp, minisyms, symcount * sizeof (*symp));
- symp += symcount;
+ minisyms = xrealloc (minisyms,
+ (symcount + synth_count + 1) * sizeof (*symp));
+ symp = (asymbol **) minisyms + symcount;
for (i = 0; i < synth_count; i++)
*symp++ = synthsyms + i;
*symp = 0;
- minisyms = new_mini;
symcount += synth_count;
}
}
+ /* lto_slim_object is set to false when a bfd is loaded with a compiler
+ LTO plugin. */
+ if (abfd->lto_slim_object)
+ {
+ report_plugin_err = FALSE;
+ non_fatal (_("%s: plugin needed to handle lto object"),
+ bfd_get_filename (abfd));
+ }
+
/* Discard the symbols we don't want to print.
It's OK to do this in place; we'll free the storage anyway
(after printing). */
else
print_size_symbols (abfd, dynamic, symsizes, symcount, archive_bfd);
+ if (synthsyms)
+ free (synthsyms);
free (minisyms);
free (symsizes);
}
+/* Construct a formatting string for printing symbol values. */
+
+static const char *
+get_print_format (void)
+{
+ const char * padding;
+ if (print_format == FORMAT_POSIX)
+ {
+ /* POSIX compatible output does not have any padding. */
+ padding = "";
+ }
+ else if (print_width == 32)
+ {
+ padding ="08";
+ }
+ else /* print_width == 64 */
+ {
+ padding = "016";
+ }
+
+ const char * length = "l";
+ if (print_width == 64)
+ {
+#if BFD_HOST_64BIT_LONG
+ ;
+#elif BFD_HOST_64BIT_LONG_LONG
+#ifndef __MSVCRT__
+ length = "ll";
+#else
+ length = "I64";
+#endif
+#endif
+ }
+
+ const char * radix = NULL;
+ switch (print_radix)
+ {
+ case 8: radix = "o"; break;
+ case 10: radix = "d"; break;
+ case 16: radix = "x"; break;
+ }
+
+ return concat ("%", padding, length, radix, NULL);
+}
+
static void
set_print_width (bfd *file)
{
else
print_width = 32;
}
+ free ((char *) print_format_string);
+ print_format_string = get_print_format ();
}
static void
/* Print the name of an object file given on the command line. */
static void
-print_object_filename_bsd (char *filename)
+print_object_filename_bsd (const char *filename)
{
if (filename_per_file && !filename_per_symbol)
printf ("\n%s:\n", filename);
}
static void
-print_object_filename_sysv (char *filename)
+print_object_filename_sysv (const char *filename)
{
if (undefined_only)
printf (_("\n\nUndefined symbols from %s:\n\n"), filename);
}
static void
-print_object_filename_posix (char *filename)
+print_object_filename_posix (const char *filename)
{
if (filename_per_file && !filename_per_symbol)
printf ("%s:\n", filename);
/* Print the name of an archive file given on the command line. */
static void
-print_archive_filename_bsd (char *filename)
+print_archive_filename_bsd (const char *filename)
{
if (filename_per_file)
printf ("\n%s:\n", filename);
}
static void
-print_archive_filename_sysv (char *filename ATTRIBUTE_UNUSED)
+print_archive_filename_sysv (const char *filename ATTRIBUTE_UNUSED)
{
}
static void
-print_archive_filename_posix (char *filename ATTRIBUTE_UNUSED)
+print_archive_filename_posix (const char *filename ATTRIBUTE_UNUSED)
{
}
\f
/* Print the name of an archive member file. */
static void
-print_archive_member_bsd (char *archive ATTRIBUTE_UNUSED,
+print_archive_member_bsd (const char *archive ATTRIBUTE_UNUSED,
const char *filename)
{
if (!filename_per_symbol)
}
static void
-print_archive_member_sysv (char *archive, const char *filename)
+print_archive_member_sysv (const char *archive, const char *filename)
{
if (undefined_only)
printf (_("\n\nUndefined symbols from %s[%s]:\n\n"), archive, filename);
}
static void
-print_archive_member_posix (char *archive, const char *filename)
+print_archive_member_posix (const char *archive, const char *filename)
{
if (!filename_per_symbol)
printf ("%s[%s]:\n", archive, filename);
switch (print_width)
{
case 32:
- printf (value_format_32bit, (unsigned long) val);
+ printf (print_format_string, (unsigned long) val);
break;
case 64:
#if BFD_HOST_64BIT_LONG || BFD_HOST_64BIT_LONG_LONG
- printf (value_format_64bit, val);
+ printf (print_format_string, val);
#else
/* We have a 64 bit value to print, but the host is only 32 bit. */
if (print_radix == 16)
expandargv (&argc, &argv);
- bfd_init ();
+ if (bfd_init () != BFD_INIT_MAGIC)
+ fatal (_("fatal error: libbfd ABI mismatch"));
set_default_bfd_target ();
while ((c = getopt_long (argc, argv, "aABCDef:gHhlnopPrSst:uvVvX:",
cplus_demangle_set_style (style);
}
break;
+ case OPTION_RECURSE_LIMIT:
+ demangle_flags &= ~ DMGL_NO_RECURSE_LIMIT;
+ break;
+ case OPTION_NO_RECURSE_LIMIT:
+ demangle_flags |= DMGL_NO_RECURSE_LIMIT;
+ break;
case 'D':
dynamic = 1;
break;
END_PROGRESS (program_name);
-#ifdef HAVE_SBRK
- if (show_stats)
- {
- char *lim = (char *) sbrk (0);
-
- non_fatal (_("data size %ld"), (long) (lim - (char *) &environ));
- }
-#endif
-
exit (retval);
return retval;
}