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[binutils.git] / ld / ldexp.h
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1 /* ldexp.h -
2 Copyright 1991, 1992, 1993, 1994, 1995, 1998, 1999, 2000, 2001, 2002
3 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)
10 any later version.
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, 59 Temple Place - Suite 330, Boston, MA
20 02111-1307, USA. */
22 #ifndef LDEXP_H
23 #define LDEXP_H
25 /* The result of an expression tree */
26 typedef struct {
27 bfd_vma value;
28 char *str;
29 struct lang_output_section_statement_struct *section;
30 boolean valid_p;
31 } etree_value_type;
33 typedef struct {
34 int node_code;
35 enum { etree_binary,
36 etree_trinary,
37 etree_unary,
38 etree_name,
39 etree_assign,
40 etree_provide,
41 etree_provided,
42 etree_undef,
43 etree_unspec,
44 etree_value,
45 etree_assert,
46 etree_rel } node_class;
47 } node_type;
49 typedef union etree_union {
50 node_type type;
51 struct {
52 node_type type;
53 union etree_union *lhs;
54 union etree_union *rhs;
55 } binary;
56 struct {
57 node_type type;
58 union etree_union *cond;
59 union etree_union *lhs;
60 union etree_union *rhs;
61 } trinary;
62 struct {
63 node_type type;
64 const char *dst;
65 union etree_union *src;
66 } assign;
67 struct {
68 node_type type;
69 union etree_union *child;
70 } unary;
71 struct {
72 node_type type;
73 const char *name;
74 } name;
75 struct {
76 node_type type;
77 bfd_vma value;
78 char *str;
79 } value;
80 struct {
81 node_type type;
82 asection *section;
83 bfd_vma value;
84 } rel;
85 struct {
86 node_type type;
87 union etree_union *child;
88 const char *message;
89 } assert_s;
90 } etree_type;
92 extern struct exp_data_seg {
93 enum {
94 exp_dataseg_none,
95 exp_dataseg_align_seen,
96 exp_dataseg_end_seen,
97 exp_dataseg_adjust
98 } phase;
99 bfd_vma base, end, pagesize;
100 } exp_data_seg;
102 typedef struct _fill_type fill_type;
104 etree_type *exp_intop PARAMS ((bfd_vma));
105 etree_type *exp_bigintop PARAMS ((bfd_vma, char *));
106 etree_type *exp_relop PARAMS ((asection *, bfd_vma));
107 etree_value_type invalid PARAMS ((void));
108 etree_value_type exp_fold_tree PARAMS ((etree_type *, struct
109 lang_output_section_statement_struct *,
110 lang_phase_type,
111 bfd_vma, bfd_vma *));
112 etree_type *exp_binop PARAMS ((int, etree_type *, etree_type *));
113 etree_type *exp_trinop PARAMS ((int,etree_type *, etree_type *, etree_type *));
114 etree_type *exp_unop PARAMS ((int, etree_type *));
115 etree_type *exp_nameop PARAMS ((int, const char *));
116 etree_type *exp_assop PARAMS ((int, const char *, etree_type *));
117 etree_type *exp_provide PARAMS ((const char *, etree_type *));
118 etree_type *exp_assert PARAMS ((etree_type *, const char *));
119 void exp_print_tree PARAMS ((etree_type *));
120 bfd_vma exp_get_vma PARAMS ((etree_type *, bfd_vma, char *, lang_phase_type));
121 int exp_get_value_int PARAMS ((etree_type *, int, char *, lang_phase_type));
122 fill_type *exp_get_fill PARAMS ((etree_type *, fill_type *, char *,
123 lang_phase_type));
124 bfd_vma exp_get_abs_int PARAMS ((etree_type *, int, char *, lang_phase_type));
125 bfd_vma align_n PARAMS ((bfd_vma, bfd_vma));
127 #endif