binutils/doc: Update documentation for nm --size-sort

[binutils-gdb.git] / ld / lexsup.c

diff --git a/ld/lexsup.c b/ld/lexsup.c
index 5dc56dc148e0c38a0cfba2aff2ec25a8b0ff27e2..6e0f9329982ae784ae4034376e16a6d93eb1389a 100644 (file)
--- a/ld/lexsup.c
+++ b/ld/lexsup.c
@@ -1,5 +1,5 @@
 /* Parse options for the GNU linker.
-   Copyright (C) 1991-2015 Free Software Foundation, Inc.
+   Copyright (C) 1991-2016 Free Software Foundation, Inc.
 
    This file is part of the GNU Binutils.
 
@@ -65,9 +65,9 @@ static void help (void);
 
 enum control_enum {
   /* Use one dash before long option name.  */
-  ONE_DASH,
+  ONE_DASH = 1,
   /* Use two dashes before long option name.  */
-  TWO_DASHES,
+  TWO_DASHES = 2,
   /* Only accept two dashes before the long option name.
      This is an overloading of the use of this enum, since originally it
      was only intended to tell the --help display function how to display
@@ -138,6 +138,9 @@ static const struct ld_option ld_options[] =
   { {"dynamic-linker", required_argument, NULL, OPTION_DYNAMIC_LINKER},
     'I', N_("PROGRAM"), N_("Set PROGRAM as the dynamic linker to use"),
     TWO_DASHES },
+  { {"no-dynamic-linker", no_argument, NULL, OPTION_NO_DYNAMIC_LINKER},
+    '\0', NULL, N_("Produce an executable with no program interpreter header"),
+    TWO_DASHES },
   { {"library", required_argument, NULL, 'l'},
     'l', N_("LIBNAME"), N_("Search for library LIBNAME"), TWO_DASHES },
   { {"library-path", required_argument, NULL, 'L'},
@@ -676,7 +679,28 @@ parse_args (unsigned argc, char **argv)
       switch (optc)
        {
        case '?':
-         einfo (_("%P: unrecognized option '%s'\n"), argv[last_optind]);
+         {
+           /* If the last word on the command line is an option that
+              requires an argument, getopt will refuse to recognise it.
+              Try to catch such options here and issue a more helpful
+              error message than just "unrecognized option".  */
+           int opt;
+
+           for (opt = ARRAY_SIZE (ld_options); opt--;)
+             if (ld_options[opt].opt.has_arg == required_argument
+                 /* FIXME: There are a few short options that do not
+                    have long equivalents, but which require arguments.
+                    We should handle them too.  */
+                 && ld_options[opt].opt.name != NULL
+                 && strcmp (argv[last_optind] + ld_options[opt].control, ld_options[opt].opt.name) == 0)
+               {
+                 einfo (_("%P: %s: missing argument\n"), argv[last_optind]);
+                 break;
+               }
+
+           if (opt == -1)
+             einfo (_("%P: unrecognized option '%s'\n"), argv[last_optind]);
+         }
          /* Fall through.  */
 
        default:
@@ -761,6 +785,10 @@ parse_args (unsigned argc, char **argv)
        case 'I':               /* Used on Solaris.  */
        case OPTION_DYNAMIC_LINKER:
          command_line.interpreter = optarg;
+         link_info.nointerp = 0;
+         break;
+       case OPTION_NO_DYNAMIC_LINKER:
+         link_info.nointerp = 1;
          break;
        case OPTION_SYSROOT:
          /* Already handled in ldmain.c.  */
@@ -990,7 +1018,7 @@ parse_args (unsigned argc, char **argv)
          break;
        case OPTION_PLUGIN_OPT:
          if (plugin_opt_plugin_arg (optarg))
-           einfo(_("%P%F: bad -plugin-opt option\n"));
+           einfo (_("%P%F: bad -plugin-opt option\n"));
          break;
 #endif /* ENABLE_PLUGINS */
        case 'q':
@@ -1558,15 +1586,14 @@ parse_args (unsigned argc, char **argv)
   /* We may have -Bsymbolic, -Bsymbolic-functions, --dynamic-list-data,
      --dynamic-list-cpp-new, --dynamic-list-cpp-typeinfo and
      --dynamic-list FILE.  -Bsymbolic and -Bsymbolic-functions are
-     for shared libraries.  -Bsymbolic overrides all others and vice
-     versa.  */
+     for PIC outputs.  -Bsymbolic overrides all others and vice versa.  */
   switch (command_line.symbolic)
     {
     case symbolic_unset:
       break;
     case symbolic:
-      /* -Bsymbolic is for shared library only.  */
-      if (bfd_link_dll (&link_info))
+      /* -Bsymbolic is for PIC output only.  */
+      if (bfd_link_pic (&link_info))
        {
          link_info.symbolic = TRUE;
          /* Should we free the unused memory?  */
@@ -1575,8 +1602,8 @@ parse_args (unsigned argc, char **argv)
        }
       break;
     case symbolic_functions:
-      /* -Bsymbolic-functions is for shared library only.  */
-      if (bfd_link_dll (&link_info))
+      /* -Bsymbolic-functions is for PIC output only.  */
+      if (bfd_link_pic (&link_info))
        command_line.dynamic_list = dynamic_list_data;
       break;
     }
@@ -1732,6 +1759,10 @@ elf_shlib_list_options (FILE *file)
   fprintf (file, _("\
   -z norelro                  Don't create RELRO program header\n"));
   fprintf (file, _("\
+  -z common                   Generate common symbols with STT_COMMON type\n"));
+  fprintf (file, _("\
+  -z nocommon                 Generate common symbols with STT_OBJECT type\n"));
+  fprintf (file, _("\
   -z stacksize=SIZE           Set size of stack segment\n"));
   fprintf (file, _("\
   -z text                     Treat DT_TEXTREL in shared object as error\n"));
@@ -1749,6 +1780,13 @@ elf_static_list_options (FILE *file)
   fprintf (file, _("\
   --compress-debug-sections=[none|zlib|zlib-gnu|zlib-gabi]\n\
                               Compress DWARF debug sections using zlib\n"));
+#ifdef DEFAULT_FLAG_COMPRESS_DEBUG
+  fprintf (file, _("\
+                               Default: zlib-gabi\n"));
+#else
+  fprintf (file, _("\
+                               Default: none\n"));
+#endif
   fprintf (file, _("\
   -z common-page-size=SIZE    Set common page size to SIZE\n"));
   fprintf (file, _("\