* ld-elf/seg.d: Restrict to linux and vxworks.

[deliverable/binutils-gdb.git] / ld / ldexp.h

diff --git a/ld/ldexp.h b/ld/ldexp.h
index c3cd5eda7703ae9b47a5500b209daacf08d0a745..1e0069dc0222f19e326d4aa2f119e30b9a3eefc6 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
-   Free Software Foundation, Inc.
+   Copyright 1991, 1992, 1993, 1994, 1995, 1998, 1999, 2000, 2001, 2002,
+   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, 59 Temple Place - Suite 330, Boston, MA
-   02111-1307, 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
@@ -26,12 +26,13 @@
 typedef struct {
   bfd_vma value;
   char *str;
-  struct lang_output_section_statement_struct *section;
+  asection *section;
   bfd_boolean valid_p;
 } etree_value_type;
 
 typedef struct {
   int node_code;
+  unsigned int lineno;
   enum {
     etree_binary,
     etree_trinary,
@@ -40,8 +41,6 @@ typedef struct {
     etree_assign,
     etree_provide,
     etree_provided,
-    etree_undef,
-    etree_unspec,
     etree_value,
     etree_assert,
     etree_rel
@@ -65,6 +64,7 @@ typedef union etree_union {
     node_type type;
     const char *dst;
     union etree_union *src;
+    bfd_boolean hidden;
   } assign;
   struct {
     node_type type;
@@ -91,15 +91,71 @@ typedef union etree_union {
   } assert_s;
 } etree_type;
 
-extern struct exp_data_seg {
-  enum {
-    exp_dataseg_none,
-    exp_dataseg_align_seen,
-    exp_dataseg_end_seen,
-    exp_dataseg_adjust
-  } phase;
-  bfd_vma base, end, pagesize;
-} exp_data_seg;
+typedef enum {
+  lang_first_phase_enum,
+  lang_mark_phase_enum,
+  lang_allocating_phase_enum,
+  lang_final_phase_enum
+} lang_phase_type;
+
+union lang_statement_union;
+
+struct ldexp_control {
+  /* Modify expression evaluation depending on this.  */
+  lang_phase_type phase;
+
+  /* Principally used for diagnostics.  */
+  bfd_boolean assigning_to_dot;
+
+  /* Working results.  */
+  etree_value_type result;
+  bfd_vma dot;
+
+  /* Current dot and section passed to ldexp folder.  */
+  bfd_vma *dotp;
+  asection *section;
+
+  /* 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;
+
+    bfd_vma base, min_base, relro_end, end, pagesize, maxpagesize;
+
+    enum {
+      exp_dataseg_relro_none,
+      exp_dataseg_relro_start,
+      exp_dataseg_relro_end,
+    } relro;
+
+    union lang_statement_union *relro_start_stat;
+    union lang_statement_union *relro_end_stat;
+  } dataseg;
+};
+
+extern struct ldexp_control expld;
+
+/* A maps from a segment name to a base address.  */
+typedef struct segment_struct {
+  /* The next segment in the linked list.  */
+  struct segment_struct *next;
+  /* The name of the sgement.  */
+  const char *name;
+  /* The base address for the segment.  */
+  bfd_vma value;
+  /* True if a SEGMENT_START directive corresponding to this segment
+     has been seen.  */
+  bfd_boolean used;
+} segment_type;
+
+/* The segments specified by the user on the command-line.  */
+extern segment_type *segments;
 
 typedef struct _fill_type fill_type;
 
@@ -109,11 +165,8 @@ etree_type *exp_bigintop
   (bfd_vma, char *);
 etree_type *exp_relop
   (asection *, bfd_vma);
-etree_value_type invalid
-  (void);
-etree_value_type exp_fold_tree
-  (etree_type *, struct lang_output_section_statement_struct *,
-   lang_phase_type, bfd_vma, bfd_vma *);
+void exp_fold_tree
+  (etree_type *, asection *, bfd_vma *);
 etree_type *exp_binop
   (int, etree_type *, etree_type *);
 etree_type *exp_trinop
@@ -125,20 +178,18 @@ 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
   (etree_type *);
 bfd_vma exp_get_vma
-  (etree_type *, bfd_vma, char *, lang_phase_type);
+  (etree_type *, bfd_vma, char *);
 int exp_get_value_int
-  (etree_type *, int, char *, lang_phase_type);
+  (etree_type *, int, char *);
 fill_type *exp_get_fill
-  (etree_type *, fill_type *, char *, lang_phase_type);
+  (etree_type *, fill_type *, char *);
 bfd_vma exp_get_abs_int
-  (etree_type *, int, char *, lang_phase_type);
-bfd_vma align_n
-  (bfd_vma, bfd_vma);
+  (etree_type *, int, char *);
 
 #endif