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 /* Set if an expression contains DEFINED(). */
131 bfd_boolean uses_defined;
133 /* Current dot and section passed to ldexp folder. */
137 /* State machine and results for DATASEG. */
139 enum phase_enum phase;
141 bfd_vma base, min_base, relro_end, end, pagesize, maxpagesize;
143 enum relro_enum relro;
145 union lang_statement_union *relro_start_stat;
146 union lang_statement_union *relro_end_stat;
150 extern struct ldexp_control expld;
152 /* A maps from a segment name to a base address. */
153 typedef struct segment_struct {
154 /* The next segment in the linked list. */
155 struct segment_struct *next;
156 /* The name of the sgement. */
158 /* The base address for the segment. */
160 /* True if a SEGMENT_START directive corresponding to this segment
165 /* The segments specified by the user on the command-line. */
166 extern segment_type *segments;
168 typedef struct _fill_type fill_type;
170 etree_type *exp_intop
172 etree_type *exp_bigintop
174 etree_type *exp_relop
175 (asection *, bfd_vma);
177 (etree_type *, asection *, bfd_vma *);
178 void exp_fold_tree_no_dot
180 etree_type *exp_binop
181 (int, etree_type *, etree_type *);
182 etree_type *exp_trinop
183 (int,etree_type *, etree_type *, etree_type *);
186 etree_type *exp_nameop
188 etree_type *exp_assop
189 (int, const char *, etree_type *);
190 etree_type *exp_provide
191 (const char *, etree_type *, bfd_boolean);
192 etree_type *exp_assert
193 (etree_type *, const char *);
197 (etree_type *, bfd_vma, char *);
198 int exp_get_value_int
199 (etree_type *, int, char *);
200 fill_type *exp_get_fill
201 (etree_type *, fill_type *, char *);
202 bfd_vma exp_get_abs_int
203 (etree_type *, int, char *);