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 */
50 typedef union etree_union {
54 union etree_union *lhs;
55 union etree_union *rhs;
59 union etree_union *cond;
60 union etree_union *lhs;
61 union etree_union *rhs;
66 union etree_union *src;
71 union etree_union *child;
89 union etree_union *child;
95 lang_first_phase_enum,
97 lang_allocating_phase_enum,
101 union lang_statement_union;
103 struct ldexp_control {
104 /* Modify expression evaluation depending on this. */
105 lang_phase_type phase;
107 /* Principally used for diagnostics. */
108 bfd_boolean assigning_to_dot;
110 /* Working results. */
111 etree_value_type result;
114 /* Current dot and section passed to ldexp folder. */
118 /* State machine and results for DATASEG. */
122 exp_dataseg_align_seen,
123 exp_dataseg_relro_seen,
124 exp_dataseg_end_seen,
125 exp_dataseg_relro_adjust,
129 bfd_vma base, min_base, relro_end, end, pagesize, maxpagesize;
132 exp_dataseg_relro_none,
133 exp_dataseg_relro_start,
134 exp_dataseg_relro_end,
137 union lang_statement_union *relro_start_stat;
138 union lang_statement_union *relro_end_stat;
142 extern struct ldexp_control expld;
144 /* A maps from a segment name to a base address. */
145 typedef struct segment_struct {
146 /* The next segment in the linked list. */
147 struct segment_struct *next;
148 /* The name of the sgement. */
150 /* The base address for the segment. */
152 /* True if a SEGMENT_START directive corresponding to this segment
157 /* The segments specified by the user on the command-line. */
158 extern segment_type *segments;
160 typedef struct _fill_type fill_type;
162 etree_type *exp_intop
164 etree_type *exp_bigintop
166 etree_type *exp_relop
167 (asection *, bfd_vma);
169 (etree_type *, asection *, bfd_vma *);
170 etree_type *exp_binop
171 (int, etree_type *, etree_type *);
172 etree_type *exp_trinop
173 (int,etree_type *, etree_type *, etree_type *);
176 etree_type *exp_nameop
178 etree_type *exp_assop
179 (int, const char *, etree_type *);
180 etree_type *exp_provide
181 (const char *, etree_type *, bfd_boolean);
182 etree_type *exp_assert
183 (etree_type *, const char *);
187 (etree_type *, bfd_vma, char *);
188 int exp_get_value_int
189 (etree_type *, int, char *);
190 fill_type *exp_get_fill
191 (etree_type *, fill_type *, char *);
192 bfd_vma exp_get_abs_int
193 (etree_type *, int, char *);