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2fa0b342 DHW |
1 | /* ldexp.h - |
2 | ||
3 | Copyright (C) 1991 Free Software Foundation, Inc. | |
4 | ||
5 | This file is part of GLD, the Gnu Linker. | |
6 | ||
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 1, or (at your option) | |
10 | any later version. | |
11 | ||
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. | |
16 | ||
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 | |
19 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
20 | ||
21 | ||
22 | ||
23 | ||
24 | /* The result of an expression tree */ | |
25 | typedef struct | |
26 | { | |
27 | bfd_vma value; | |
28 | struct lang_output_section_statement_struct *section; | |
29 | boolean valid; | |
30 | } etree_value_type; | |
31 | ||
32 | ||
33 | ||
34 | typedef struct | |
35 | { | |
36 | int node_code; | |
37 | enum { etree_binary, | |
38 | etree_trinary, | |
39 | etree_unary, | |
40 | etree_name, | |
41 | etree_assign, | |
42 | etree_undef, | |
43 | etree_unspec, | |
44 | etree_value } node_class; | |
45 | } node_type; | |
46 | ||
47 | ||
48 | ||
49 | typedef union etree_union | |
50 | { | |
51 | node_type type; | |
52 | struct { | |
53 | node_type type; | |
54 | union etree_union *lhs; | |
55 | union etree_union *rhs; | |
56 | } binary; | |
57 | struct { | |
58 | node_type type; | |
59 | union etree_union *cond; | |
60 | union etree_union *lhs; | |
61 | union etree_union *rhs; | |
62 | } trinary; | |
63 | struct { | |
64 | node_type type; | |
65 | char *dst; | |
66 | union etree_union *src; | |
67 | } assign; | |
68 | ||
69 | struct { | |
70 | node_type type; | |
71 | union etree_union *child; | |
72 | } unary; | |
73 | struct { | |
74 | node_type type; | |
75 | char *name; | |
76 | } name; | |
77 | struct { | |
78 | node_type type; | |
79 | bfd_vma value; | |
80 | } value; | |
81 | ||
82 | } etree_type; | |
83 | ||
84 | ||
85 | PROTO(etree_type *,exp_intop,(bfd_vma)); | |
86 | ||
87 | PROTO(etree_value_type, invalid,(void)); | |
88 | PROTO(etree_value_type, exp_fold_tree,(etree_type *, struct | |
89 | lang_output_section_statement_struct *, lang_phase_type, | |
90 | bfd_vma, bfd_vma *)); | |
91 | ||
92 | PROTO(etree_type *, exp_binop,(int, etree_type *, etree_type *)); | |
93 | PROTO(etree_type *,exp_trinop,(int,etree_type *, etree_type *, etree_type *)); | |
94 | PROTO(etree_type *,exp_unop,(int, etree_type *)); | |
95 | PROTO(etree_type *,exp_nameop,(int, char *)); | |
96 | PROTO(etree_type *,exp_assop,(int, char *, etree_type *)); | |
97 | PROTO(void, exp_print_tree,(struct _iobuf *, etree_type *)); | |
98 | PROTO(bfd_vma, exp_get_vma,(etree_type *, bfd_vma, char *, enum boolean)); | |
99 | PROTO(int, exp_get_value_int,(etree_type *, int, char *, enum boolean)); |