Add support for reading Aarch64 core dumps.

[binutils-gdb.git] / binutils / nm.c

diff --git a/binutils/nm.c b/binutils/nm.c
index 2fc13b4c31993ccca7a6283891b90e3a00bf125e..2a44a846004885f06f288af6c38fa42eddf5a7f2 100644 (file)
--- a/binutils/nm.c
+++ b/binutils/nm.c
@@ -1,7 +1,5 @@
 /* nm.c -- Describe symbol table of a rel file.
-   Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
-   2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010
-   Free Software Foundation, Inc.
+   Copyright (C) 1991-2014 Free Software Foundation, Inc.
 
    This file is part of GNU Binutils.
 
@@ -177,14 +175,19 @@ static char other_format[] = "%02x";
 static char desc_format[] = "%04x";
 
 static char *target = NULL;
-static char *plugin_target = NULL;
+#if BFD_SUPPORTS_PLUGINS
+static const char *plugin_target = "plugin";
+#else
+static const char *plugin_target = NULL;
+#endif
 
 /* Used to cache the line numbers for a BFD.  */
 static bfd *lineno_cache_bfd;
 static bfd *lineno_cache_rel_bfd;
 
 #define OPTION_TARGET 200
-#define OPTION_PLUGIN 201
+#define OPTION_PLUGIN (OPTION_TARGET + 1)
+#define OPTION_SIZE_SORT (OPTION_PLUGIN + 1)
 
 static struct option long_options[] =
 {
@@ -197,8 +200,8 @@ 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-sort", no_argument, &no_sort, 1},
-  {"numeric-sort", no_argument, &sort_numerically, 1},
+  {"no-sort", no_argument, 0, 'p'},
+  {"numeric-sort", no_argument, 0, 'n'},
   {"plugin", required_argument, 0, OPTION_PLUGIN},
   {"portability", no_argument, 0, 'P'},
   {"print-armap", no_argument, &print_armap, 1},
@@ -206,7 +209,7 @@ static struct option long_options[] =
   {"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},
+  {"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},
@@ -434,10 +437,10 @@ filter_symbols (bfd *abfd, bfd_boolean is_dynamic, void *minisyms,
       if (undefined_only)
        keep = bfd_is_und_section (sym->section);
       else if (external_only)
-       keep = ((sym->flags & BSF_GLOBAL) != 0
-               || (sym->flags & BSF_WEAK) != 0
-               /* PR binutls/12753: Unique symbols are global too.  */
-               || (sym->flags & BSF_GNU_UNIQUE) != 0
+       /* PR binutls/12753: Unique symbols are global too.  */
+       keep = ((sym->flags & (BSF_GLOBAL
+                              | BSF_WEAK
+                              | BSF_GNU_UNIQUE)) != 0
                || bfd_is_und_section (sym->section)
                || bfd_is_com_section (sym->section));
       else
@@ -950,19 +953,12 @@ print_size_symbols (bfd *abfd, bfd_boolean is_dynamic,
   for (; from < fromend; from++)
     {
       asymbol *sym;
-      bfd_vma ssize;
 
       sym = bfd_minisymbol_to_symbol (abfd, is_dynamic, from->minisym, store);
       if (sym == NULL)
        bfd_fatal (bfd_get_filename (abfd));
 
-      /* 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, ssize, archive_bfd);
+      print_symbol (abfd, sym, from->size, archive_bfd);
     }
 }
 
@@ -1016,7 +1012,15 @@ display_rel_file (bfd *abfd, bfd *archive_bfd)
 
   symcount = bfd_read_minisymbols (abfd, dynamic, &minisyms, &size);
   if (symcount < 0)
-    bfd_fatal (bfd_get_filename (abfd));
+    {
+      if (dynamic && bfd_get_error () == bfd_error_no_symbols)
+       {
+         non_fatal (_("%s: no symbols"), bfd_get_filename (abfd));
+         return;
+       }
+
+      bfd_fatal (bfd_get_filename (abfd));
+    }
 
   if (symcount == 0)
     {
@@ -1202,6 +1206,10 @@ display_file (char *filename)
       return FALSE;
     }
 
+  /* If printing line numbers, decompress the debug sections.  */
+  if (line_numbers)
+    file->flags |= BFD_DECOMPRESS;
+
   if (bfd_check_format (file, bfd_archive))
     {
       display_archive (file);
@@ -1589,10 +1597,19 @@ main (int argc, char **argv)
          break;
        case 'n':
        case 'v':
+         no_sort = 0;
          sort_numerically = 1;
+         sort_by_size = 0;
          break;
        case 'p':
          no_sort = 1;
+         sort_numerically = 0;
+         sort_by_size = 0;
+         break;
+       case OPTION_SIZE_SORT:
+         no_sort = 0;
+         sort_numerically = 0;
+         sort_by_size = 1;
          break;
        case 'P':
          set_output_format ("posix");
@@ -1633,7 +1650,6 @@ main (int argc, char **argv)
 
        case OPTION_PLUGIN:     /* --plugin */
 #if BFD_SUPPORTS_PLUGINS
-         plugin_target = "plugin";
          bfd_plugin_set_plugin (optarg);
 #else
          fatal (_("sorry - this program has been built without plugin support\n"));