* ld.texinfo (Expression Section): Describe treatment of numbers

[platform/upstream/binutils.git] / ld / ldexp.h

diff --git a/ld/ldexp.h b/ld/ldexp.h
index 7cf8ea7..31a06ac 100644 (file)
--- a/ld/ldexp.h
+++ b/ld/ldexp.h
@@ -1,23 +1,23 @@
 /* ldexp.h -
    Copyright 1991, 1992, 1993, 1994, 1995, 1998, 1999, 2000, 2001, 2002,
-   2003, 2004, 2005 Free Software Foundation, Inc.
+   2003, 2004, 2005, 2007 Free Software Foundation, Inc.
 
-   This file is part of GLD, the Gnu Linker.
+   This file is part of the GNU Binutils.
 
-   GLD is free software; you can redistribute it and/or modify
+   This program 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)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
-   GLD is distributed in the hope that it will be useful,
+   This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    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 GLD; see the file COPYING.  If not, write to the Free
-   Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
-   02110-1301, USA.  */
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+   MA 02110-1301, USA.  */
 
 #ifndef LDEXP_H
 #define LDEXP_H
@@ -30,20 +30,23 @@ typedef struct {
   bfd_boolean valid_p;
 } etree_value_type;
 
+enum node_tree_enum {
+  etree_binary,
+  etree_trinary,
+  etree_unary,
+  etree_name,
+  etree_assign,
+  etree_provide,
+  etree_provided,
+  etree_value,
+  etree_assert,
+  etree_rel
+};
+
 typedef struct {
   int node_code;
-  enum {
-    etree_binary,
-    etree_trinary,
-    etree_unary,
-    etree_name,
-    etree_assign,
-    etree_provide,
-    etree_provided,
-    etree_value,
-    etree_assert,
-    etree_rel
-  } node_class;
+  unsigned int lineno;
+  enum  node_tree_enum node_class;
 } node_type;
 
 typedef union etree_union {
@@ -63,6 +66,7 @@ typedef union etree_union {
     node_type type;
     const char *dst;
     union etree_union *src;
+    bfd_boolean hidden;
   } assign;
   struct {
     node_type type;
@@ -96,6 +100,23 @@ typedef enum {
   lang_final_phase_enum
 } lang_phase_type;
 
+union lang_statement_union;
+
+enum phase_enum {
+  exp_dataseg_none,
+  exp_dataseg_align_seen,
+  exp_dataseg_relro_seen,
+  exp_dataseg_end_seen,
+  exp_dataseg_relro_adjust,
+  exp_dataseg_adjust
+};
+
+enum relro_enum {
+  exp_dataseg_relro_none,
+  exp_dataseg_relro_start,
+  exp_dataseg_relro_end,
+};
+
 struct ldexp_control {
   /* Modify expression evaluation depending on this.  */
   lang_phase_type phase;
@@ -106,6 +127,8 @@ struct ldexp_control {
   /* Working results.  */
   etree_value_type result;
   bfd_vma dot;
+  /* Set if an expression contains DEFINED().  */
+  bfd_boolean uses_defined;
 
   /* Current dot and section passed to ldexp folder.  */
   bfd_vma *dotp;
@@ -113,16 +136,14 @@ struct ldexp_control {
 
   /* State machine and results for DATASEG.  */
   struct {
-    enum {
-      exp_dataseg_none,
-      exp_dataseg_align_seen,
-      exp_dataseg_relro_seen,
-      exp_dataseg_end_seen,
-      exp_dataseg_relro_adjust,
-      exp_dataseg_adjust
-    } phase;
+    enum phase_enum phase;
 
     bfd_vma base, min_base, relro_end, end, pagesize, maxpagesize;
+
+    enum relro_enum relro;
+
+    union lang_statement_union *relro_start_stat;
+    union lang_statement_union *relro_end_stat;
   } dataseg;
 };
 
@@ -154,6 +175,8 @@ etree_type *exp_relop
   (asection *, bfd_vma);
 void exp_fold_tree
   (etree_type *, asection *, bfd_vma *);
+void exp_fold_tree_no_dot
+  (etree_type *);
 etree_type *exp_binop
   (int, etree_type *, etree_type *);
 etree_type *exp_trinop
@@ -165,7 +188,7 @@ etree_type *exp_nameop
 etree_type *exp_assop
   (int, const char *, etree_type *);
 etree_type *exp_provide
-  (const char *, etree_type *);
+  (const char *, etree_type *, bfd_boolean);
 etree_type *exp_assert
   (etree_type *, const char *);
 void exp_print_tree