2010-04-30 Richard Guenther <rguenther@suse.de>

[pf3gnuchains/gcc-fork.git] / gcc / config / sol2.c

diff --git a/gcc/config/sol2.c b/gcc/config/sol2.c
index 348e752..32fa4f3 100644 (file)
--- a/gcc/config/sol2.c
+++ b/gcc/config/sol2.c
@@ -1,12 +1,12 @@
 /* General Solaris system support.
-   Copyright (C) 2004, 2005  Free Software Foundation, Inc.
+   Copyright (C) 2004, 2005 , 2007, 2010 Free Software Foundation, Inc.
    Contributed by CodeSourcery, LLC.
 
 This file is part of GCC.
 
 GCC is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
+the Free Software Foundation; either version 3, or (at your option)
 any later version.
 
 GCC is distributed in the hope that it will be useful,
@@ -15,14 +15,14 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
-along with GCC; see the file COPYING.  If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.  */
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
 
 #include "config.h"
 #include "system.h"
 #include "coretypes.h"
 #include "tree.h"
+#include "output.h"
 #include "tm.h"
 #include "rtl.h"
 #include "tm_p.h"
@@ -51,8 +51,8 @@ solaris_insert_attributes (tree decl, tree *attributes)
          {
            if (lookup_attribute ("aligned", DECL_ATTRIBUTES (decl))
                || lookup_attribute ("aligned", *attributes))
-             warning (0, "%Jignoring %<#pragma align%> for explicitly "
-                      "aligned %<%D%>", decl, decl);
+             warning (0, "ignoring %<#pragma align%> for explicitly "
+                      "aligned %q+D", decl);
            else
              *attributes = tree_cons (get_identifier ("aligned"), value,
                                       *attributes);
@@ -71,8 +71,8 @@ solaris_insert_attributes (tree decl, tree *attributes)
          {
            *attributes = tree_cons (get_identifier ("init"), NULL,
                                     *attributes);
-           *attributes = tree_cons (get_identifier ("used"), NULL,
-                                    *attributes);
+           TREE_USED (decl) = 1;
+           DECL_PRESERVE_P (decl) = 1;
            next = TREE_CHAIN (*x);
            ggc_free (*x);
            *x = next;
@@ -88,8 +88,8 @@ solaris_insert_attributes (tree decl, tree *attributes)
          {
            *attributes = tree_cons (get_identifier ("fini"), NULL,
                                     *attributes);
-           *attributes = tree_cons (get_identifier ("used"), NULL,
-                                    *attributes);
+           TREE_USED (decl) = 1;
+           DECL_PRESERVE_P (decl) = 1;
            next = TREE_CHAIN (*x);
            ggc_free (*x);
            *x = next;
@@ -105,16 +105,55 @@ solaris_output_init_fini (FILE *file, tree decl)
 {
   if (lookup_attribute ("init", DECL_ATTRIBUTES (decl)))
     {
-      fprintf (file, "\t.pushsection\t\".init\"\n");
+      fprintf (file, PUSHSECTION_FORMAT, ".init");
       ASM_OUTPUT_CALL (file, decl);
       fprintf (file, "\t.popsection\n");
     }
 
   if (lookup_attribute ("fini", DECL_ATTRIBUTES (decl)))
     {
-      fprintf (file, "\t.pushsection\t\".fini\"\n");
+      fprintf (file, PUSHSECTION_FORMAT, ".fini");
       ASM_OUTPUT_CALL (file, decl);
       fprintf (file, "\t.popsection\n");
     }
 }
 
+/* Emit an assembler directive to set symbol for DECL visibility to
+   the visibility type VIS, which must not be VISIBILITY_DEFAULT.  */
+
+void
+solaris_assemble_visibility (tree decl, int vis)
+{
+  /* Sun as uses .symbolic for STV_PROTECTED.  STV_INTERNAL is marked as
+     `currently reserved', but the linker treats it like STV_HIDDEN.  Sun
+     Studio 12.1 cc emits .hidden instead.
+
+     There are 3 Sun extensions GCC doesn't yet know about: STV_EXPORTED,
+     STV_SINGLETON, and STV_ELIMINATE.
+
+     See Linker and Libraries Guide, Ch. 2, Link-Editor, Defining
+     Additional Symbols with a mapfile,
+     http://docs.sun.com/app/docs/doc/819-0690/gdzmc?a=view
+     and Ch. 7, Object-File Format, Symbol Table Section,
+     http://docs.sun.com/app/docs/doc/819-0690/chapter6-79797?a=view  */
+
+  static const char * const visibility_types[] = {
+    NULL, "symbolic", "hidden", "hidden"
+  };
+
+  const char *name, *type;
+
+  name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl));
+  type = visibility_types[vis];
+
+  /* .hidden dates back before Solaris 2.5, but .symbolic was only added in
+     Solaris 9 12/02.  */
+#ifdef HAVE_GAS_HIDDEN
+  fprintf (asm_out_file, "\t.%s\t", type);
+  assemble_name (asm_out_file, name);
+  fprintf (asm_out_file, "\n");
+#else
+  warning (OPT_Wattributes, "visibility attribute not supported "
+          "in this configuration; ignored");
+#endif
+}