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/* ldexp.h -
Copyright 1991, 1992, 1993 Free Software Foundation, Inc.
This file is part of GLD, the Gnu Linker.
GLD is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GLD is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GLD; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#ifndef LDEXP_H
#define LDEXP_H
/* The result of an expression tree */
typedef struct
{
bfd_vma value;
struct lang_output_section_statement_struct *section;
boolean valid;
} etree_value_type;
typedef struct
{
int node_code;
enum { etree_binary,
etree_trinary,
etree_unary,
etree_name,
etree_assign,
etree_provide,
etree_undef,
etree_unspec,
etree_value,
etree_rel } node_class;
} node_type;
typedef union etree_union
{
node_type type;
struct {
node_type type;
union etree_union *lhs;
union etree_union *rhs;
} binary;
struct {
node_type type;
union etree_union *cond;
union etree_union *lhs;
union etree_union *rhs;
} trinary;
struct {
node_type type;
CONST char *dst;
union etree_union *src;
} assign;
struct {
node_type type;
union etree_union *child;
} unary;
struct {
node_type type;
CONST char *name;
} name;
struct {
node_type type;
bfd_vma value;
} value;
struct {
node_type type;
asection *section;
bfd_vma value;
} rel;
} etree_type;
etree_type *exp_intop PARAMS ((bfd_vma));
etree_type *exp_relop PARAMS ((asection *, bfd_vma));
etree_value_type invalid PARAMS ((void));
etree_value_type exp_fold_tree PARAMS ((etree_type *, struct
lang_output_section_statement_struct *,
lang_phase_type,
bfd_vma, bfd_vma *));
etree_type *exp_binop PARAMS ((int, etree_type *, etree_type *));
etree_type *exp_trinop PARAMS ((int,etree_type *, etree_type *, etree_type *));
etree_type *exp_unop PARAMS ((int, etree_type *));
etree_type *exp_nameop PARAMS ((int, CONST char *));
etree_type *exp_assop PARAMS ((int, CONST char *, etree_type *));
etree_type *exp_provide PARAMS ((const char *, etree_type *));
void exp_print_tree PARAMS ((etree_type *));
bfd_vma exp_get_vma PARAMS ((etree_type *, bfd_vma, char *, lang_phase_type));
int exp_get_value_int PARAMS ((etree_type *, int, char *,lang_phase_type));
bfd_vma exp_get_abs_int PARAMS ((etree_type *, int, char *,lang_phase_type));
#endif
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