2 Copyright 1991, 1992, 1993, 1994, 1995, 1998, 1999, 2000, 2001, 2002,
3 2003, 2004, 2005, 2007 Free Software Foundation, Inc.
5 This file is part of the GNU Binutils.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20 MA 02110-1301, USA. */
25 /* The result of an expression tree */
49 enum node_tree_enum node_class
;
52 typedef union etree_union
{
56 union etree_union
*lhs
;
57 union etree_union
*rhs
;
61 union etree_union
*cond
;
62 union etree_union
*lhs
;
63 union etree_union
*rhs
;
68 union etree_union
*src
;
73 union etree_union
*child
;
91 union etree_union
*child
;
97 lang_first_phase_enum
,
99 lang_allocating_phase_enum
,
100 lang_final_phase_enum
103 union lang_statement_union
;
107 exp_dataseg_align_seen
,
108 exp_dataseg_relro_seen
,
109 exp_dataseg_end_seen
,
110 exp_dataseg_relro_adjust
,
115 exp_dataseg_relro_none
,
116 exp_dataseg_relro_start
,
117 exp_dataseg_relro_end
,
120 struct ldexp_control
{
121 /* Modify expression evaluation depending on this. */
122 lang_phase_type phase
;
124 /* Principally used for diagnostics. */
125 bfd_boolean assigning_to_dot
;
127 /* Working results. */
128 etree_value_type result
;
130 bfd_boolean uses_defined
;
132 /* Current dot and section passed to ldexp folder. */
136 /* State machine and results for DATASEG. */
138 enum phase_enum phase
;
140 bfd_vma base
, min_base
, relro_end
, end
, pagesize
, maxpagesize
;
142 enum relro_enum relro
;
144 union lang_statement_union
*relro_start_stat
;
145 union lang_statement_union
*relro_end_stat
;
149 extern struct ldexp_control expld
;
151 /* A maps from a segment name to a base address. */
152 typedef struct segment_struct
{
153 /* The next segment in the linked list. */
154 struct segment_struct
*next
;
155 /* The name of the sgement. */
157 /* The base address for the segment. */
159 /* True if a SEGMENT_START directive corresponding to this segment
164 /* The segments specified by the user on the command-line. */
165 extern segment_type
*segments
;
167 typedef struct _fill_type fill_type
;
169 etree_type
*exp_intop
171 etree_type
*exp_bigintop
173 etree_type
*exp_relop
174 (asection
*, bfd_vma
);
176 (etree_type
*, asection
*, bfd_vma
*);
177 void exp_fold_tree_no_dot
179 etree_type
*exp_binop
180 (int, etree_type
*, etree_type
*);
181 etree_type
*exp_trinop
182 (int,etree_type
*, etree_type
*, etree_type
*);
185 etree_type
*exp_nameop
187 etree_type
*exp_assop
188 (int, const char *, etree_type
*);
189 etree_type
*exp_provide
190 (const char *, etree_type
*, bfd_boolean
);
191 etree_type
*exp_assert
192 (etree_type
*, const char *);
196 (etree_type
*, bfd_vma
, char *);
197 int exp_get_value_int
198 (etree_type
*, int, char *);
199 fill_type
*exp_get_fill
200 (etree_type
*, fill_type
*, char *);
201 bfd_vma exp_get_abs_int
202 (etree_type
*, int, char *);