2 Copyright 1991, 1992, 1993, 1994, 1995, 1998, 1999, 2000, 2001, 2002,
3 2003, 2004, 2005 Free Software Foundation, Inc.
5 This file is part of GLD, the Gnu Linker.
7 GLD 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 2, or (at your option)
12 GLD 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 GLD; see the file COPYING. If not, write to the Free
19 Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
25 /* The result of an expression tree */
49 typedef union etree_union {
53 union etree_union *lhs;
54 union etree_union *rhs;
58 union etree_union *cond;
59 union etree_union *lhs;
60 union etree_union *rhs;
65 union etree_union *src;
69 union etree_union *child;
87 union etree_union *child;
93 lang_first_phase_enum,
95 lang_allocating_phase_enum,
99 struct ldexp_control {
100 /* Modify expression evaluation depending on this. */
101 lang_phase_type phase;
103 /* Principally used for diagnostics. */
104 bfd_boolean assigning_to_dot;
106 /* Working results. */
107 etree_value_type result;
110 /* Current dot and section passed to ldexp folder. */
114 /* State machine and results for DATASEG. */
118 exp_dataseg_align_seen,
119 exp_dataseg_relro_seen,
120 exp_dataseg_end_seen,
121 exp_dataseg_relro_adjust,
125 bfd_vma base, min_base, relro_end, end, pagesize, maxpagesize;
129 extern struct ldexp_control expld;
131 /* A maps from a segment name to a base address. */
132 typedef struct segment_struct {
133 /* The next segment in the linked list. */
134 struct segment_struct *next;
135 /* The name of the sgement. */
137 /* The base address for the segment. */
139 /* True if a SEGMENT_START directive corresponding to this segment
144 /* The segments specified by the user on the command-line. */
145 extern segment_type *segments;
147 typedef struct _fill_type fill_type;
149 etree_type *exp_intop
151 etree_type *exp_bigintop
153 etree_type *exp_relop
154 (asection *, bfd_vma);
156 (etree_type *, asection *, bfd_vma *);
157 etree_type *exp_binop
158 (int, etree_type *, etree_type *);
159 etree_type *exp_trinop
160 (int,etree_type *, etree_type *, etree_type *);
163 etree_type *exp_nameop
165 etree_type *exp_assop
166 (int, const char *, etree_type *);
167 etree_type *exp_provide
168 (const char *, etree_type *);
169 etree_type *exp_assert
170 (etree_type *, const char *);
174 (etree_type *, bfd_vma, char *);
175 int exp_get_value_int
176 (etree_type *, int, char *);
177 fill_type *exp_get_fill
178 (etree_type *, fill_type *, char *);
179 bfd_vma exp_get_abs_int
180 (etree_type *, int, char *);