place_orphan optimisations

[deliverable/binutils-gdb.git] / ld / ldmain.c

diff --git a/ld/ldmain.c b/ld/ldmain.c
index b392563a7ef040e875691fd87bade63eb2ae4004..ba2a5923e3e64442366fdaad94c270efc2a0878b 100644 (file)
--- a/ld/ldmain.c
+++ b/ld/ldmain.c
@@ -1,5 +1,6 @@
 /* Main program of GNU linker.
-   Copyright (C) 1991, 92, 93, 94, 95, 96, 1997, 1998 Free Software Foundation, Inc.
+   Copyright (C) 1991, 92, 93, 94, 95, 96, 97, 98, 1999
+   Free Software Foundation, Inc.
    Written by Steve Chamberlain steve@cygnus.com
 
 This file is part of GLD, the Gnu Linker.
@@ -82,6 +83,9 @@ boolean version_printed;
 /* Nonzero means link in every member of an archive.  */
 boolean whole_archive;
 
+/* True if we should demangle symbol names.  */
+boolean demangling;
+
 args_type command_line;
 
 ld_config_type config;
@@ -113,7 +117,7 @@ static boolean warning_callback PARAMS ((struct bfd_link_info *,
 static void warning_find_reloc PARAMS ((bfd *, asection *, PTR));
 static boolean undefined_symbol PARAMS ((struct bfd_link_info *,
                                         const char *, bfd *,
-                                        asection *, bfd_vma));
+                                        asection *, bfd_vma, boolean));
 static boolean reloc_overflow PARAMS ((struct bfd_link_info *, const char *,
                                       const char *, bfd_vma,
                                       bfd *, asection *, bfd_vma));
@@ -162,7 +166,7 @@ main (argc, argv)
   char *emulation;
   long start_time = get_run_time ();
 
-#ifdef HAVE_SETLOCALE
+#if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
   setlocale (LC_MESSAGES, "");
 #endif
   bindtextdomain (PACKAGE, LOCALEDIR);
@@ -201,6 +205,13 @@ main (argc, argv)
   command_line.warn_mismatch = true;
   command_line.check_section_addresses = true;
 
+  /* We initialize DEMANGLING based on the environment variable
+     COLLECT_NO_DEMANGLE.  The gcc collect2 program will demangle the
+     output of the linker, unless COLLECT_NO_DEMANGLE is set in the
+     environment.  Acting the same way here lets us provide the same
+     interface by default.  */
+  demangling = getenv ("COLLECT_NO_DEMANGLE") == NULL;
+
   link_info.callbacks = &link_callbacks;
   link_info.relocateable = false;
   link_info.shared = false;
@@ -208,6 +219,7 @@ main (argc, argv)
   link_info.static_link = false;
   link_info.traditional_format = false;
   link_info.optimize = false;
+  link_info.no_undefined = false;
   link_info.strip = strip_none;
   link_info.discard = discard_none;
   link_info.keep_memory = true;
@@ -218,7 +230,12 @@ main (argc, argv)
   link_info.notice_all = false;
   link_info.notice_hash = NULL;
   link_info.wrap_hash = NULL;
-  
+  link_info.mpc860c0 = 0;
+  /* SVR4 linkers seem to set DT_INIT and DT_FINI based on magic _init
+     and _fini symbols.  We are compatible.  */
+  link_info.init_function = "_init";
+  link_info.fini_function = "_fini";
+
   ldfile_add_arch ("");
 
   config.make_executable = true;
@@ -241,7 +258,9 @@ main (argc, argv)
     {
       if (command_line.gc_sections)
        einfo ("%P%F: --gc-sections and -r may not be used together\n");
-      if (command_line.relax)
+      if (link_info.mpc860c0)
+       einfo (_("%P%F: -r and --mpc860c0 may not be used together\n"));
+      else if (command_line.relax)
        einfo (_("%P%F: --relax and -r may not be used together\n"));
       if (link_info.shared)
        einfo (_("%P%F: -r and -shared may not be used together\n"));
@@ -422,7 +441,6 @@ main (argc, argv)
 
   if (config.stats)
     {
-      extern char **environ;
 #ifdef HAVE_SBRK
       char *lim = (char *) sbrk (0);
 #endif
@@ -687,7 +705,7 @@ add_keepsyms_file (filename)
 /*ARGSUSED*/
 static boolean
 add_archive_element (info, abfd, name)
-     struct bfd_link_info *info;
+     struct bfd_link_info *info ATTRIBUTE_UNUSED;
      bfd *abfd;
      const char *name;
 {
@@ -802,7 +820,7 @@ add_archive_element (info, abfd, name)
 /*ARGSUSED*/
 static boolean
 multiple_definition (info, name, obfd, osec, oval, nbfd, nsec, nval)
-     struct bfd_link_info *info;
+     struct bfd_link_info *info ATTRIBUTE_UNUSED;
      const char *name;
      bfd *obfd;
      asection *osec;
@@ -839,7 +857,7 @@ multiple_definition (info, name, obfd, osec, oval, nbfd, nsec, nval)
 /*ARGSUSED*/
 static boolean
 multiple_common (info, name, obfd, otype, osize, nbfd, ntype, nsize)
-     struct bfd_link_info *info;
+     struct bfd_link_info *info ATTRIBUTE_UNUSED;
      const char *name;
      bfd *obfd;
      enum bfd_link_hash_type otype;
@@ -906,7 +924,7 @@ multiple_common (info, name, obfd, otype, osize, nbfd, ntype, nsize)
 /*ARGSUSED*/
 static boolean
 add_to_set (info, h, reloc, abfd, section, value)
-     struct bfd_link_info *info;
+     struct bfd_link_info *info ATTRIBUTE_UNUSED;
      struct bfd_link_hash_entry *h;
      bfd_reloc_code_real_type reloc;
      bfd *abfd;
@@ -1005,7 +1023,7 @@ struct warning_callback_info
 /*ARGSUSED*/
 static boolean
 warning_callback (info, warning, symbol, abfd, section, address)
-     struct bfd_link_info *info;
+     struct bfd_link_info *info ATTRIBUTE_UNUSED;
      const char *warning;
      const char *symbol;
      bfd *abfd;
@@ -1126,12 +1144,13 @@ warning_find_reloc (abfd, sec, iarg)
 
 /*ARGSUSED*/
 static boolean
-undefined_symbol (info, name, abfd, section, address)
-     struct bfd_link_info *info;
+undefined_symbol (info, name, abfd, section, address, fatal)
+     struct bfd_link_info *info ATTRIBUTE_UNUSED;
      const char *name;
      bfd *abfd;
      asection *section;
      bfd_vma address;
+     boolean fatal;
 {
   static char *error_name;
   static unsigned int error_count;
@@ -1175,8 +1194,12 @@ undefined_symbol (info, name, abfd, section, address)
   if (section != NULL)
     {
       if (error_count < MAX_ERRORS_IN_A_ROW)
-       einfo (_("%X%C: undefined reference to `%T'\n"),
-              abfd, section, address, name);
+       {
+         einfo (_("%C: undefined reference to `%T'\n"),
+                abfd, section, address, name);
+         if (fatal)
+           einfo ("%X");
+       }
       else if (error_count == MAX_ERRORS_IN_A_ROW)
        einfo (_("%D: more undefined references to `%T' follow\n"),
               abfd, section, address, name);
@@ -1184,8 +1207,12 @@ undefined_symbol (info, name, abfd, section, address)
   else
     {
       if (error_count < MAX_ERRORS_IN_A_ROW)
-       einfo (_("%X%B: undefined reference to `%T'\n"),
-              abfd, name);
+       {
+         einfo (_("%B: undefined reference to `%T'\n"),
+                abfd, name);
+         if (fatal)
+           einfo ("%X");
+       }
       else if (error_count == MAX_ERRORS_IN_A_ROW)
        einfo (_("%B: more undefined references to `%T' follow\n"),
               abfd, name);
@@ -1199,7 +1226,7 @@ undefined_symbol (info, name, abfd, section, address)
 /*ARGSUSED*/
 static boolean
 reloc_overflow (info, name, reloc_name, addend, abfd, section, address)
-     struct bfd_link_info *info;
+     struct bfd_link_info *info ATTRIBUTE_UNUSED;
      const char *name;
      const char *reloc_name;
      bfd_vma addend;
@@ -1223,7 +1250,7 @@ reloc_overflow (info, name, reloc_name, addend, abfd, section, address)
 /*ARGSUSED*/
 static boolean
 reloc_dangerous (info, message, abfd, section, address)
-     struct bfd_link_info *info;
+     struct bfd_link_info *info ATTRIBUTE_UNUSED;
      const char *message;
      bfd *abfd;
      asection *section;
@@ -1243,7 +1270,7 @@ reloc_dangerous (info, message, abfd, section, address)
 /*ARGSUSED*/
 static boolean
 unattached_reloc (info, name, abfd, section, address)
-     struct bfd_link_info *info;
+     struct bfd_link_info *info ATTRIBUTE_UNUSED;
      const char *name;
      bfd *abfd;
      asection *section;