Implement Read/Write constraints on system registers on AArch64

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

diff --git a/ld/ldfile.c b/ld/ldfile.c
index e9091e9fa9ab0cb1182a102de48096ac13215a39..a72ff1352642531ad5e60f18c4cc0f970762765b 100644 (file)
--- a/ld/ldfile.c
+++ b/ld/ldfile.c
@@ -1,7 +1,5 @@
 /* Linker file opening and searching.
-   Copyright 1991, 1992, 1993, 1994, 1995, 1998, 1999, 2000, 2001, 2002,
-   2003, 2004, 2005, 2007, 2008, 2009, 2010, 2011, 2012
-   Free Software Foundation, Inc.
+   Copyright (C) 1991-2018 Free Software Foundation, Inc.
 
    This file is part of the GNU Binutils.
 
@@ -40,19 +38,19 @@
 #include "plugin.h"
 #endif /* ENABLE_PLUGINS */
 
-bfd_boolean  ldfile_assumed_script = FALSE;
-const char * ldfile_output_machine_name = "";
+bfd_boolean ldfile_assumed_script = FALSE;
+const char *ldfile_output_machine_name = "";
 unsigned long ldfile_output_machine;
 enum bfd_architecture ldfile_output_architecture;
-search_dirs_type * search_head;
+search_dirs_type *search_head;
 
 #ifdef VMS
-static char * slash = "";
+static char *slash = "";
 #else
-#if defined (_WIN32) && ! defined (__CYGWIN32__)
-static char * slash = "\\";
+#if defined (_WIN32) && !defined (__CYGWIN32__)
+static char *slash = "\\";
 #else
-static char * slash = "/";
+static char *slash = "/";
 #endif
 #endif
 
@@ -114,6 +112,8 @@ ldfile_add_library_path (const char *name, bfd_boolean cmdline)
      now.  */
   if (name[0] == '=')
     new_dirs->name = concat (ld_sysroot, name + 1, (const char *) NULL);
+  else if (CONST_STRNEQ (name, "$SYSROOT"))
+    new_dirs->name = concat (ld_sysroot, name + strlen ("$SYSROOT"), (const char *) NULL);
   else
     new_dirs->name = xstrdup (name);
 }
@@ -144,6 +144,14 @@ ldfile_try_open_bfd (const char *attempt,
   /* Linker needs to decompress sections.  */
   entry->the_bfd->flags |= BFD_DECOMPRESS;
 
+  /* This is a linker input BFD.  */
+  entry->the_bfd->is_linker_input = 1;
+
+#ifdef ENABLE_PLUGINS
+  if (entry->flags.lto_output)
+    entry->the_bfd->lto_output = 1;
+#endif
+
   /* If we are searching for this file, see if the architecture is
      compatible with the output file.  If it isn't, keep searching.
      If we can't open the file as an object file, stop the search
@@ -166,12 +174,12 @@ ldfile_try_open_bfd (const char *attempt,
 
       if (check != NULL)
        {
-         if (! bfd_check_format (check, bfd_object))
+         if (!bfd_check_format (check, bfd_object))
            {
              if (check == entry->the_bfd
                  && entry->flags.search_dirs
                  && bfd_get_error () == bfd_error_file_not_recognized
-                 && ! ldemul_unrecognized_file (entry))
+                 && !ldemul_unrecognized_file (entry))
                {
                  int token, skip = 0;
                  char *arg, *arg1, *arg2, *arg3;
@@ -278,9 +286,10 @@ ldfile_try_open_bfd (const char *attempt,
              && !bfd_arch_get_compatible (check, link_info.output_bfd,
                                           command_line.accept_unknown_input_arch)
              /* XCOFF archives can have 32 and 64 bit objects.  */
-             && ! (bfd_get_flavour (check) == bfd_target_xcoff_flavour
-                   && bfd_get_flavour (link_info.output_bfd) == bfd_target_xcoff_flavour
-                   && bfd_check_format (entry->the_bfd, bfd_archive)))
+             && !(bfd_get_flavour (check) == bfd_target_xcoff_flavour
+                  && (bfd_get_flavour (link_info.output_bfd)
+                      == bfd_target_xcoff_flavour)
+                  && bfd_check_format (entry->the_bfd, bfd_archive)))
            {
              if (command_line.warn_search_mismatch)
                einfo (_("%P: skipping incompatible %s "
@@ -303,22 +312,10 @@ success:
      bfd_object that it sets the bfd's arch and mach, which
      will be needed when and if we want to bfd_create a new
      one using this one as a template.  */
-  if (bfd_check_format (entry->the_bfd, bfd_object)
-      && plugin_active_plugins_p ()
-      && !no_more_claiming)
-    {
-      int fd = open (attempt, O_RDONLY | O_BINARY);
-      if (fd >= 0)
-       {
-         struct ld_plugin_input_file file;
-
-         file.name = attempt;
-         file.offset = 0;
-         file.filesize = lseek (fd, 0, SEEK_END);
-         file.fd = fd;
-         plugin_maybe_claim (&file, entry);
-       }
-    }
+  if (link_info.lto_plugin_active
+      && !no_more_claiming
+      && bfd_check_format (entry->the_bfd, bfd_object))
+    plugin_maybe_claim (entry);
 #endif /* ENABLE_PLUGINS */
 
   /* It opened OK, the format checked out, and the plugins have had
@@ -339,7 +336,7 @@ ldfile_open_file_search (const char *arch,
 
   /* If this is not an archive, try to open it in the current
      directory first.  */
-  if (! entry->flags.maybe_archive)
+  if (!entry->flags.maybe_archive)
     {
       if (entry->flags.sysrooted && IS_ABSOLUTE_PATH (entry->filename))
        {
@@ -363,13 +360,13 @@ ldfile_open_file_search (const char *arch,
     {
       char *string;
 
-      if (entry->flags.dynamic && ! link_info.relocatable)
+      if (entry->flags.dynamic && !bfd_link_relocatable (&link_info))
        {
          if (ldemul_open_dynamic_archive (arch, search, entry))
            return TRUE;
        }
 
-      if (entry->flags.maybe_archive)
+      if (entry->flags.maybe_archive && !entry->flags.full_name_provided)
        string = concat (search->name, slash, lib, entry->filename,
                         arch, suffix, (const char *) NULL);
       else
@@ -399,7 +396,7 @@ ldfile_open_file (lang_input_statement_type *entry)
   if (entry->the_bfd != NULL)
     return;
 
-  if (! entry->flags.search_dirs)
+  if (!entry->flags.search_dirs)
     {
       if (ldfile_try_open_bfd (entry->filename, entry))
        return;
@@ -601,7 +598,8 @@ ldfile_open_command_file_1 (const char *name, bfd_boolean default_only)
   if (ldlex_input_stack == NULL)
     {
       bfd_set_error (bfd_error_system_call);
-      einfo (_("%P%F: cannot open linker script file %s: %E\n"), name);
+      einfo (_("%F%P: cannot open linker script file %s: %E\n"), name);
+      return;
     }
 
   lex_push_file (ldlex_input_stack, name, sysrooted);
@@ -632,8 +630,8 @@ void
 ldfile_add_arch (const char *in_name)
 {
   char *name = xstrdup (in_name);
-  search_arch_type *new_arch = (search_arch_type *)
-      xmalloc (sizeof (search_arch_type));
+  search_arch_type *new_arch
+    = (search_arch_type *) xmalloc (sizeof (search_arch_type));
 
   ldfile_output_machine_name = in_name;
 
@@ -665,5 +663,5 @@ ldfile_set_output_arch (const char *string, enum bfd_architecture defarch)
   else if (defarch != bfd_arch_unknown)
     ldfile_output_architecture = defarch;
   else
-    einfo (_("%P%F: cannot represent machine `%s'\n"), string);
+    einfo (_("%F%P: cannot represent machine `%s'\n"), string);
 }