import gdb-2000-02-02 snapshot

[external/binutils.git] / ld / lexsup.c

diff --git a/ld/lexsup.c b/ld/lexsup.c
index 7ee5087..06a65e1 100644 (file)
--- a/ld/lexsup.c
+++ b/ld/lexsup.c
@@ -55,6 +55,7 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
    that might disagree about consts.  */
 unsigned long strtoul ();
 
+static int is_num PARAMS ((const char *, int, int, int));
 static void set_default_dirlist PARAMS ((char *dirlist_ptr));
 static void set_section_start PARAMS ((char *sect, char *valstr));
 static void help PARAMS ((void));
@@ -120,6 +121,8 @@ int parsing_defsym = 0;
 #define OPTION_NO_CHECK_SECTIONS       (OPTION_CHECK_SECTIONS + 1)
 #define OPTION_MPC860C0                 (OPTION_NO_CHECK_SECTIONS + 1)
 #define OPTION_NO_UNDEFINED            (OPTION_MPC860C0 + 1)
+#define OPTION_INIT                     (OPTION_NO_UNDEFINED + 1)
+#define OPTION_FINI                     (OPTION_INIT + 1)
 
 /* The long options.  This structure is used for both the option
    parsing and the help text.  */
@@ -270,6 +273,8 @@ static const struct ld_option ld_options[] =
       '\0', N_("PROGRAM"), N_("Set the dynamic linker to use"), TWO_DASHES },
   { {"embedded-relocs", no_argument, NULL, OPTION_EMBEDDED_RELOCS},
       '\0', NULL, N_("Generate embedded relocs"), TWO_DASHES},
+  { {"fini", required_argument, NULL, OPTION_FINI},
+     '\0', N_("SYMBOL"), N_("Call SYMBOL at unload-time"), ONE_DASH },
   { {"force-exe-suffix", no_argument, NULL, OPTION_FORCE_EXE_SUFFIX},
       '\0', NULL, N_("Force generation of file with .exe suffix"), TWO_DASHES},
   { {"gc-sections", no_argument, NULL, OPTION_GC_SECTIONS},
@@ -280,6 +285,8 @@ static const struct ld_option ld_options[] =
       TWO_DASHES },
   { {"help", no_argument, NULL, OPTION_HELP},
       '\0', NULL, N_("Print option help"), TWO_DASHES },
+  { {"init", required_argument, NULL, OPTION_INIT},
+     '\0', N_("SYMBOL"), N_("Call SYMBOL at load-time"), ONE_DASH },
   { {"Map", required_argument, NULL, OPTION_MAP},
       '\0', N_("FILE"), N_("Write a map file"), ONE_DASH },
   { {"no-demangle", no_argument, NULL, OPTION_NO_DEMANGLE },
@@ -341,7 +348,7 @@ static const struct ld_option ld_options[] =
       '\0', N_("FILE"), N_("Read version information script"), TWO_DASHES },
   { {"version-exports-section", required_argument, NULL,
      OPTION_VERSION_EXPORTS_SECTION },
-    '\0', N_("SYMBOL"), N_("Take export symbols list from .exports, using SYMBOL as the version."),
+    '\0', N_("SYMBOL"), N_("Take export symbols list from .exports, using\n\t\t\t\tSYMBOL as the version."),
     TWO_DASHES },
   { {"warn-common", no_argument, NULL, OPTION_WARN_COMMON},
       '\0', NULL, N_("Warn about duplicate common symbols"), TWO_DASHES },
@@ -360,27 +367,32 @@ static const struct ld_option ld_options[] =
   { {"wrap", required_argument, NULL, OPTION_WRAP},
       '\0', N_("SYMBOL"), N_("Use wrapper functions for SYMBOL"), TWO_DASHES },
   { {"mpc860c0", optional_argument, NULL, OPTION_MPC860C0},
-      '\0', N_("[=WORDS]"), N_("Modify problematic branches in last WORDS (1-10, default 5) words of a page"), TWO_DASHES }
+      '\0', N_("[=WORDS]"), N_("Modify problematic branches in last WORDS (1-10,\n\t\t\t\tdefault 5) words of a page"), TWO_DASHES }
 };
 
 #define OPTION_COUNT ((int) (sizeof ld_options / sizeof ld_options[0]))
 
-/* Test "string" for containing a string of digits that form a number
-between "min" and "max".  The return value is the number or "err". */
-static
-int is_num( char *string, int min, int max, int err)
+/* Test STRING for containing a string of digits that form a number
+   between MIN and MAX.  The return value is the number or ERR.  */
+
+static int
+is_num (string, min, max, err)
+     const char *string;
+     int min;
+     int max;
+     int err;
 {
   int result = 0;
 
-  for ( ; *string; ++string)
-  {
-    if (!isdigit(*string))
+  for (; *string; ++string)
     {
-      result = err;
-      break;
+      if (! isdigit (*string))
+       {
+         result = err;
+         break;
+       }
+      result = result * 10 + (*string - '0');
     }
-    result = result * 10 + (*string - '0');
-  }
   if (result < min || result > max)
     result = err;
 
@@ -504,6 +516,9 @@ parse_args (argc, argv)
       switch (optc)
        {
        default:
+         fprintf (stderr,
+                  _("%s: use the --help option for usage information\n"),
+                  program_name);
          xexit (1);
        case 1:                 /* File name.  */
          lang_add_input_file (optarg, lang_input_file_is_file_enum,
@@ -939,7 +954,7 @@ the GNU General Public License.  This program has absolutely no warranty.\n"));
              ignored.  Someday we should handle it correctly.  FIXME.  */
          break;
        case OPTION_SPLIT_BY_RELOC:
-         config.split_by_reloc = atoi (optarg);
+         config.split_by_reloc = strtoul (optarg, NULL, 0);
          break; 
        case OPTION_SPLIT_BY_FILE:
          config.split_by_file = true;
@@ -981,13 +996,23 @@ the GNU General Public License.  This program has absolutely no warranty.\n"));
               words = is_num (optarg, 1, 10, 0);
               if (words == 0)
                 {
-                  fprintf (stderr, _("Invalid argument to option \"mpc860c0\"\n"));
+                  fprintf (stderr,
+                          _("%s: Invalid argument to option \"mpc860c0\"\n"),
+                          program_name);
                   xexit (1);
                 }
               link_info.mpc860c0 = words * 4;   /* convert words to bytes */
             }
           command_line.relax = true;
           break;
+
+       case OPTION_INIT:
+         link_info.init_function = optarg;
+         break;
+         
+       case OPTION_FINI:
+         link_info.fini_function = optarg;
+         break;
        }
     }
 
@@ -1118,6 +1143,8 @@ help ()
        }
     }
 
+  /* Note: Various tools (such as libtool) depend upon the
+     format of the listings below - do not change them.  */
   /* xgettext:c-format */
   printf (_("%s: supported targets:"), program_name);
   targets = bfd_target_list ();