We use the stock version of this file as in rev 1.4.

This commit is contained in:
David E. O'Brien 2002-10-11 06:05:36 +00:00
parent 8febaae8e2
commit 8dae927e1f

View File

@ -1,6 +1,6 @@
/* nm.c -- Describe symbol table of a rel file.
Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
2001
2001, 2002
Free Software Foundation, Inc.
This file is part of GNU Binutils.
@ -25,11 +25,14 @@
#include "bfd.h"
#include "progress.h"
#include "bucomm.h"
#include "budemang.h"
#include "getopt.h"
#include "aout/stab_gnu.h"
#include "aout/ranlib.h"
#include "demangle.h"
#include "libiberty.h"
#include "elf-bfd.h"
#include "elf/common.h"
/* When sorting by size, we use this structure to hold the size and a
pointer to the minisymbol. */
@ -51,142 +54,84 @@ struct get_relocs_info
asymbol **syms;
};
static void
usage PARAMS ((FILE *, int));
struct extended_symbol_info
{
symbol_info *sinfo;
bfd_vma ssize;
elf_symbol_type *elfinfo;
/* FIXME: We should add more fields for Type, Line, Section. */
};
#define SYM_NAME(sym) (sym->sinfo->name)
#define SYM_VALUE(sym) (sym->sinfo->value)
#define SYM_TYPE(sym) (sym->sinfo->type)
#define SYM_STAB_NAME(sym) (sym->sinfo->stab_name)
#define SYM_STAB_DESC(sym) (sym->sinfo->stab_desc)
#define SYM_STAB_OTHER(sym) (sym->sinfo->stab_other)
#define SYM_SIZE(sym) \
(sym->elfinfo ? sym->elfinfo->internal_elf_sym.st_size: sym->ssize)
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));
static void
display_rel_file PARAMS ((bfd * file, bfd * archive));
static long
filter_symbols PARAMS ((bfd *, boolean, PTR, long, unsigned int));
static long
sort_symbols_by_size PARAMS ((bfd *, boolean, PTR, long, unsigned int,
struct size_sym **));
static void
print_symbols PARAMS ((bfd *, boolean, PTR, long, unsigned int, bfd *));
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
print_symdef_entry PARAMS ((bfd * abfd));
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 *));
static void display_rel_file PARAMS ((bfd *, bfd *));
static long filter_symbols PARAMS ((bfd *, boolean, PTR, long, unsigned int));
static long sort_symbols_by_size PARAMS ((bfd *, boolean, PTR, long, unsigned int, struct size_sym **));
static void print_symbols PARAMS ((bfd *, boolean, PTR, long, unsigned int, bfd *));
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_vma ssize, bfd *));
static void print_symdef_entry PARAMS ((bfd *));
/* The sorting functions. */
static int
numeric_forward PARAMS ((const PTR, const PTR));
static int
numeric_reverse PARAMS ((const PTR, const PTR));
static int
non_numeric_forward PARAMS ((const PTR, const PTR));
static int
non_numeric_reverse PARAMS ((const PTR, const PTR));
static int
size_forward1 PARAMS ((const PTR, const PTR));
static int
size_forward2 PARAMS ((const PTR, const PTR));
static int numeric_forward PARAMS ((const PTR, const PTR));
static int numeric_reverse PARAMS ((const PTR, const PTR));
static int non_numeric_forward PARAMS ((const PTR, const PTR));
static int non_numeric_reverse PARAMS ((const PTR, const PTR));
static int size_forward1 PARAMS ((const PTR, const PTR));
static int size_forward2 PARAMS ((const PTR, const PTR));
/* The output formatting functions. */
static void
print_object_filename_bsd PARAMS ((char *filename));
static void
print_object_filename_sysv PARAMS ((char *filename));
static void
print_object_filename_posix PARAMS ((char *filename));
static void
print_archive_filename_bsd PARAMS ((char *filename));
static void
print_archive_filename_sysv PARAMS ((char *filename));
static void
print_archive_filename_posix PARAMS ((char *filename));
static void
print_archive_member_bsd PARAMS ((char *archive, CONST char *filename));
static void
print_archive_member_sysv PARAMS ((char *archive, CONST char *filename));
static void
print_archive_member_posix PARAMS ((char *archive, CONST char *filename));
static void
print_symbol_filename_bsd PARAMS ((bfd * archive_bfd, bfd * abfd));
static void
print_symbol_filename_sysv PARAMS ((bfd * archive_bfd, bfd * abfd));
static void
print_symbol_filename_posix PARAMS ((bfd * archive_bfd, bfd * abfd));
static void
print_value PARAMS ((bfd *, bfd_vma));
static void
print_symbol_info_bsd PARAMS ((symbol_info * info, bfd * abfd));
static void
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));
static void print_object_filename_bsd PARAMS ((char *));
static void print_object_filename_sysv PARAMS ((char *));
static void print_object_filename_posix PARAMS ((char *));
static void print_archive_filename_bsd PARAMS ((char *));
static void print_archive_filename_sysv PARAMS ((char *));
static void print_archive_filename_posix PARAMS ((char *));
static void print_archive_member_bsd PARAMS ((char *, const char *));
static void print_archive_member_sysv PARAMS ((char *, const char *));
static void print_archive_member_posix PARAMS ((char *, const char *));
static void print_symbol_filename_bsd PARAMS ((bfd *, bfd *));
static void print_symbol_filename_sysv PARAMS ((bfd *, bfd *));
static void print_symbol_filename_posix PARAMS ((bfd *, bfd *));
static void print_value PARAMS ((bfd *, bfd_vma));
static void print_symbol_info_bsd PARAMS ((struct extended_symbol_info *, bfd *));
static void print_symbol_info_sysv PARAMS ((struct extended_symbol_info *, bfd *));
static void print_symbol_info_posix PARAMS ((struct extended_symbol_info *, bfd *));
static void get_relocs PARAMS ((bfd *, asection *, PTR));
static const char * get_symbol_type PARAMS ((unsigned int));
/* Support for different output formats. */
struct output_fns
{
/* Print the name of an object file given on the command line. */
void (*print_object_filename) PARAMS ((char *filename));
void (*print_object_filename) PARAMS ((char *));
/* Print the name of an archive file given on the command line. */
void (*print_archive_filename) PARAMS ((char *filename));
void (*print_archive_filename) PARAMS ((char *));
/* Print the name of an archive member file. */
void (*print_archive_member) PARAMS ((char *archive, CONST char *filename));
void (*print_archive_member) PARAMS ((char *, const char *));
/* Print the name of the file (and archive, if there is one)
containing a symbol. */
void (*print_symbol_filename) PARAMS ((bfd * archive_bfd, bfd * abfd));
void (*print_symbol_filename) PARAMS ((bfd *, bfd *));
/* Print a line of information about a symbol. */
void (*print_symbol_info) PARAMS ((symbol_info * info, bfd * abfd));
void (*print_symbol_info) PARAMS ((struct extended_symbol_info *, bfd *));
};
static struct output_fns formats[] =
{
{print_object_filename_bsd,
@ -215,23 +160,23 @@ static struct output_fns formats[] =
/* The output format to use. */
static struct output_fns *format = &formats[FORMAT_DEFAULT];
/* Command options. */
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. */
static int reverse_sort = 0; /* sort in downward(alpha or numeric) order */
static int sort_numerically = 0; /* sort in numeric rather than alpha order */
static int sort_by_size = 0; /* sort by size of symbol */
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 */
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. */
static int print_size = 0; /* Print size of defined symbols. */
static int reverse_sort = 0; /* Sort in downward(alpha or numeric) order. */
static int sort_numerically = 0;/* Sort in numeric rather than alpha order. */
static int sort_by_size = 0; /* Sort by size of symbol. */
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. */
@ -281,6 +226,7 @@ static struct option long_options[] =
{"portability", no_argument, 0, 'P'},
{"print-armap", no_argument, &print_armap, 1},
{"print-file-name", no_argument, 0, 'o'},
{"print-size", no_argument, 0, 'S'},
{"radix", required_argument, 0, 't'},
{"reverse-sort", no_argument, &reverse_sort, 1},
{"size-sort", no_argument, &sort_by_size, 1},
@ -292,7 +238,7 @@ static struct option long_options[] =
{0, no_argument, 0, 0}
};
/* Some error-reporting functions */
/* Some error-reporting functions. */
static void
usage (stream, status)
@ -322,6 +268,7 @@ usage (stream, status)
-p, --no-sort Do not sort the symbols\n\
-P, --portability Same as --format=posix\n\
-r, --reverse-sort Reverse the sense of the sort\n\
-S, --print-size Print size of defined symbols\n\
-s, --print-armap Include index for symbols from archive members\n\
--size-sort Sort symbols by size\n\
-t, --radix=RADIX Use RADIX for printing symbol values\n\
@ -411,6 +358,7 @@ main (argc, argv)
#endif
#if defined (HAVE_SETLOCALE)
setlocale (LC_CTYPE, "");
setlocale (LC_COLLATE, "");
#endif
bindtextdomain (PACKAGE, LOCALEDIR);
textdomain (PACKAGE);
@ -423,7 +371,7 @@ main (argc, argv)
bfd_init ();
set_default_bfd_target ();
while ((c = getopt_long (argc, argv, "aABCDef:gHhlnopPrst:uvVvX:",
while ((c = getopt_long (argc, argv, "aABCDef:gHhlnopPrSst:uvVvX:",
long_options, (int *) 0)) != EOF)
{
switch (c)
@ -486,6 +434,9 @@ main (argc, argv)
case 's':
print_armap = 1;
break;
case 'S':
print_size = 1;
break;
case 't':
set_print_radix (optarg);
break;
@ -554,6 +505,32 @@ main (argc, argv)
return retval;
}
static const char *
get_symbol_type (type)
unsigned int type;
{
static char buff [32];
switch (type)
{
case STT_NOTYPE: return "NOTYPE";
case STT_OBJECT: return "OBJECT";
case STT_FUNC: return "FUNC";
case STT_SECTION: return "SECTION";
case STT_FILE: return "FILE";
case STT_COMMON: return "COMMON";
case STT_TLS: return "TLS";
default:
if (type >= STT_LOPROC && type <= STT_HIPROC)
sprintf (buff, _("<processor specific>: %d"), type);
else if (type >= STT_LOOS && type <= STT_HIOS)
sprintf (buff, _("<OS specific>: %d"), type);
else
sprintf (buff, _("<unknown>: %d"), type);
return buff;
}
}
static void
display_archive (file)
bfd *file;
@ -582,6 +559,10 @@ display_archive (file)
if (bfd_check_format_matches (arfile, bfd_object, &matching))
{
char buf[30];
bfd_sprintf_vma (arfile, buf, (bfd_vma) -1);
print_width = strlen (buf);
(*format->print_archive_member) (bfd_get_filename (file),
bfd_get_filename (arfile));
display_rel_file (arfile, file);
@ -634,6 +615,10 @@ display_file (filename)
}
else if (bfd_check_format_matches (file, bfd_object, &matching))
{
char buf[30];
bfd_sprintf_vma (file, buf, (bfd_vma) -1);
print_width = strlen (buf);
(*format->print_object_filename) (filename);
display_rel_file (file, NULL);
}
@ -724,8 +709,23 @@ non_numeric_forward (P_x, P_y)
xn = bfd_asymbol_name (x);
yn = bfd_asymbol_name (y);
return ((xn == NULL) ? ((yn == NULL) ? 0 : -1) :
((yn == NULL) ? 1 : strcmp (xn, yn)));
if (yn == NULL)
return xn != NULL;
if (xn == NULL)
return -1;
#ifdef HAVE_STRCOLL
/* Solaris 2.5 has a bug in strcoll.
strcoll returns invalid values when confronted with empty strings. */
if (*yn == '\0')
return *xn != '\0';
if (*xn == '\0')
return -1;
return strcoll (xn, yn);
#else
return strcmp (xn, yn);
#endif
}
static int
@ -841,10 +841,10 @@ size_forward2 (P_x, P_y)
return sorters[0][reverse_sort] (x->minisym, y->minisym);
}
/* Sort the symbols by size. We guess the size by assuming that the
difference between the address of a symbol and the address of the
next higher symbol is the size. FIXME: ELF actually stores a size
with each symbol. We should use it. */
/* Sort the symbols by size. ELF provides a size but for other formats
we have to make a guess by assuming that the difference between the
address of a symbol and the address of the next higher symbol is the
size. */
static long
sort_symbols_by_size (abfd, dynamic, minisyms, symcount, size, symsizesp)
@ -870,7 +870,6 @@ sort_symbols_by_size (abfd, dynamic, minisyms, symcount, size, symsizesp)
/* Note that filter_symbols has already removed all absolute and
undefined symbols. Here we remove all symbols whose size winds
up as zero. */
from = (bfd_byte *) minisyms;
fromend = from + symcount * size;
@ -906,7 +905,9 @@ sort_symbols_by_size (abfd, dynamic, minisyms, symcount, size, symsizesp)
sec = bfd_get_section (sym);
if (bfd_is_com_section (sec))
if (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))
sz = sym->value;
else
{
@ -952,7 +953,6 @@ display_rel_file (abfd, archive_bfd)
PTR minisyms;
unsigned int size;
struct size_sym *symsizes;
char buf[30];
if (! dynamic)
{
@ -973,9 +973,6 @@ display_rel_file (abfd, archive_bfd)
return;
}
bfd_sprintf_vma (abfd, buf, (bfd_vma) -1);
print_width = strlen (buf);
/* 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). */
@ -1091,22 +1088,12 @@ print_symname (format, name, abfd)
{
if (do_demangle && *name)
{
char *res;
char *res = demangle (abfd, name);
/* In this mode, give a user-level view of the symbol name
even if it's not mangled; strip off any leading
underscore. */
if (bfd_get_symbol_leading_char (abfd) == name[0])
name++;
res = cplus_demangle (name, DMGL_ANSI | DMGL_PARAMS);
if (res)
{
printf (format, res);
free (res);
return;
}
}
printf (format, name);
}
@ -1140,7 +1127,7 @@ print_symbols (abfd, dynamic, minisyms, symcount, size, archive_bfd)
if (sym == NULL)
bfd_fatal (bfd_get_filename (abfd));
print_symbol (abfd, sym, archive_bfd);
print_symbol (abfd, sym, (bfd_vma) 0, archive_bfd);
}
}
@ -1166,25 +1153,29 @@ print_size_symbols (abfd, dynamic, symsizes, symcount, archive_bfd)
for (; from < fromend; from++)
{
asymbol *sym;
bfd_vma ssize;
sym = bfd_minisymbol_to_symbol (abfd, dynamic, from->minisym, store);
if (sym == NULL)
bfd_fatal (bfd_get_filename (abfd));
/* Set the symbol value so that we actually display the symbol
size. */
sym->value = from->size - bfd_section_vma (abfd, bfd_get_section (sym));
/* For elf we have already computed the correct symbol size. */
if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
ssize = from->size;
else
ssize = from->size - bfd_section_vma (abfd, bfd_get_section (sym));
print_symbol (abfd, sym, archive_bfd);
print_symbol (abfd, sym, ssize, archive_bfd);
}
}
/* Print a single symbol. */
static void
print_symbol (abfd, sym, archive_bfd)
print_symbol (abfd, sym, ssize, archive_bfd)
bfd *abfd;
asymbol *sym;
bfd_vma ssize;
bfd *archive_bfd;
{
PROGRESS (1);
@ -1199,9 +1190,16 @@ print_symbol (abfd, sym, archive_bfd)
else
{
symbol_info syminfo;
struct extended_symbol_info info;
bfd_get_symbol_info (abfd, sym, &syminfo);
(*format->print_symbol_info) (&syminfo, abfd);
info.sinfo = &syminfo;
info.ssize = ssize;
if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
info.elfinfo = (elf_symbol_type *) sym;
else
info.elfinfo = NULL;
(*format->print_symbol_info) (&info, abfd);
}
if (line_numbers)
@ -1244,7 +1242,6 @@ print_symbol (abfd, sym, archive_bfd)
/* 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++)
@ -1344,6 +1341,10 @@ print_object_filename_sysv (filename)
printf (_("\n\nUndefined symbols from %s:\n\n"), filename);
else
printf (_("\n\nSymbols from %s:\n\n"), filename);
if (print_width == 8)
printf (_("\
Name Value Class Type Size Line Section\n\n"));
else
printf (_("\
Name Value Class Type Size Line Section\n\n"));
}
@ -1383,7 +1384,7 @@ print_archive_filename_posix (filename)
static void
print_archive_member_bsd (archive, filename)
char *archive ATTRIBUTE_UNUSED;
CONST char *filename;
const char *filename;
{
if (!filename_per_symbol)
printf ("\n%s:\n", filename);
@ -1392,12 +1393,16 @@ print_archive_member_bsd (archive, filename)
static void
print_archive_member_sysv (archive, filename)
char *archive;
CONST char *filename;
const char *filename;
{
if (undefined_only)
printf (_("\n\nUndefined symbols from %s[%s]:\n\n"), archive, filename);
else
printf (_("\n\nSymbols from %s[%s]:\n\n"), archive, filename);
if (print_width == 8)
printf (_("\
Name Value Class Type Size Line Section\n\n"));
else
printf (_("\
Name Value Class Type Size Line Section\n\n"));
}
@ -1405,7 +1410,7 @@ Name Value Class Type Size Line Section\n\n
static void
print_archive_member_posix (archive, filename)
char *archive;
CONST char *filename;
const char *filename;
{
if (!filename_per_symbol)
printf ("%s[%s]:\n", archive, filename);
@ -1488,66 +1493,109 @@ print_value (abfd, val)
static void
print_symbol_info_bsd (info, abfd)
symbol_info *info;
struct extended_symbol_info *info;
bfd *abfd;
{
if (bfd_is_undefined_symclass (info->type))
if (bfd_is_undefined_symclass (SYM_TYPE (info)))
{
if (print_width == 16)
printf (" ");
printf (" ");
}
else
print_value (abfd, info->value);
printf (" %c", info->type);
if (info->type == '-')
{
print_value (abfd, SYM_VALUE (info));
if (print_size && SYM_SIZE (info))
{
printf(" ");
print_value (abfd, SYM_SIZE (info));
}
}
printf (" %c", SYM_TYPE (info));
if (SYM_TYPE (info) == '-')
{
/* A stab. */
printf (" ");
printf (other_format, info->stab_other);
printf (other_format, SYM_STAB_OTHER (info));
printf (" ");
printf (desc_format, info->stab_desc);
printf (" %5s", info->stab_name);
printf (desc_format, SYM_STAB_DESC (info));
printf (" %5s", SYM_STAB_NAME (info));
}
print_symname (" %s", info->name, abfd);
print_symname (" %s", SYM_NAME (info), abfd);
}
static void
print_symbol_info_sysv (info, abfd)
symbol_info *info;
struct extended_symbol_info *info;
bfd *abfd;
{
print_symname ("%-20s|", info->name, abfd); /* Name */
if (bfd_is_undefined_symclass (info->type))
printf (" "); /* Value */
print_symname ("%-20s|", SYM_NAME (info), abfd);
if (bfd_is_undefined_symclass (SYM_TYPE (info)))
{
if (print_width == 8)
printf (" ");
else
print_value (abfd, info->value);
printf ("| %c |", info->type); /* Class */
if (info->type == '-')
printf (" ");
}
else
print_value (abfd, SYM_VALUE (info));
printf ("| %c |", SYM_TYPE (info));
if (SYM_TYPE (info) == '-')
{
/* A stab. */
printf ("%18s| ", info->stab_name); /* (C) Type */
printf (desc_format, info->stab_desc); /* Size */
printf ("%18s| ", SYM_STAB_NAME (info)); /* (C) Type */
printf (desc_format, SYM_STAB_DESC (info)); /* Size */
printf ("| |"); /* Line, Section */
}
else
printf (" | | |"); /* Type, Size, Line, Section */
{
/* Type, Size, Line, Section */
if (info->elfinfo)
printf ("%18s|",
get_symbol_type (ELF_ST_TYPE (info->elfinfo->internal_elf_sym.st_info)));
else
printf (" |");
if (SYM_SIZE (info))
print_value (abfd, SYM_SIZE (info));
else
{
if (print_width == 8)
printf (" ");
else
printf (" ");
}
if (info->elfinfo)
printf("| |%s", info->elfinfo->symbol.section->name);
else
printf("| |");
}
}
static void
print_symbol_info_posix (info, abfd)
symbol_info *info;
struct extended_symbol_info *info;
bfd *abfd;
{
print_symname ("%s ", info->name, abfd);
printf ("%c ", info->type);
if (bfd_is_undefined_symclass (info->type))
print_symname ("%s ", SYM_NAME (info), abfd);
printf ("%c ", SYM_TYPE (info));
if (bfd_is_undefined_symclass (SYM_TYPE (info)))
printf (" ");
else
print_value (abfd, info->value);
/* POSIX.2 wants the symbol size printed here, when applicable;
BFD currently doesn't provide it, so we take the easy way out by
considering it to never be applicable. */
{
print_value (abfd, SYM_VALUE (info));
printf (" ");
if (SYM_SIZE (info))
print_value (abfd, SYM_SIZE (info));
}
}
static void