/* ldexp.h -
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/* ldexp.h -
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Copyright 1991, 1992, 1993, 1994, 1995, 1998, 1999, 2000, 2001, 2002,
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Copyright 1991, 1992, 1993, 1994, 1995, 1998, 1999, 2000, 2001, 2002,
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2003, 2004, 2005, 2007 Free Software Foundation, Inc.
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2003, 2004, 2005, 2007 Free Software Foundation, Inc.
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This file is part of the GNU Binutils.
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This file is part of the GNU Binutils.
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This program is free software; you can redistribute it and/or modify
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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MA 02110-1301, USA. */
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#ifndef LDEXP_H
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#ifndef LDEXP_H
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#define LDEXP_H
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#define LDEXP_H
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/* The result of an expression tree */
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/* The result of an expression tree */
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typedef struct {
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typedef struct {
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bfd_vma value;
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bfd_vma value;
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char *str;
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char *str;
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asection *section;
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asection *section;
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bfd_boolean valid_p;
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bfd_boolean valid_p;
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} etree_value_type;
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} etree_value_type;
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enum node_tree_enum {
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enum node_tree_enum {
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etree_binary,
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etree_binary,
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etree_trinary,
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etree_trinary,
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etree_unary,
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etree_unary,
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etree_name,
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etree_name,
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etree_assign,
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etree_assign,
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etree_provide,
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etree_provide,
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etree_provided,
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etree_provided,
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etree_value,
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etree_value,
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etree_assert,
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etree_assert,
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etree_rel
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etree_rel
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};
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};
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typedef struct {
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typedef struct {
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int node_code;
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int node_code;
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unsigned int lineno;
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unsigned int lineno;
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enum node_tree_enum node_class;
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enum node_tree_enum node_class;
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} node_type;
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} node_type;
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typedef union etree_union {
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typedef union etree_union {
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node_type type;
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node_type type;
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struct {
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struct {
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node_type type;
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node_type type;
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union etree_union *lhs;
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union etree_union *lhs;
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union etree_union *rhs;
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union etree_union *rhs;
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} binary;
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} binary;
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struct {
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struct {
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node_type type;
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node_type type;
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union etree_union *cond;
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union etree_union *cond;
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union etree_union *lhs;
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union etree_union *lhs;
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union etree_union *rhs;
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union etree_union *rhs;
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} trinary;
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} trinary;
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struct {
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struct {
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node_type type;
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node_type type;
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const char *dst;
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const char *dst;
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union etree_union *src;
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union etree_union *src;
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bfd_boolean hidden;
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bfd_boolean hidden;
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} assign;
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} assign;
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struct {
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struct {
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node_type type;
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node_type type;
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union etree_union *child;
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union etree_union *child;
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} unary;
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} unary;
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struct {
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struct {
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node_type type;
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node_type type;
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const char *name;
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const char *name;
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} name;
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} name;
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struct {
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struct {
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node_type type;
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node_type type;
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bfd_vma value;
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bfd_vma value;
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char *str;
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char *str;
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} value;
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} value;
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struct {
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struct {
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node_type type;
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node_type type;
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asection *section;
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asection *section;
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bfd_vma value;
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bfd_vma value;
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} rel;
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} rel;
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struct {
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struct {
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node_type type;
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node_type type;
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union etree_union *child;
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union etree_union *child;
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const char *message;
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const char *message;
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} assert_s;
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} assert_s;
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} etree_type;
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} etree_type;
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typedef enum {
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typedef enum {
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lang_first_phase_enum,
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lang_first_phase_enum,
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lang_mark_phase_enum,
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lang_mark_phase_enum,
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lang_allocating_phase_enum,
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lang_allocating_phase_enum,
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lang_final_phase_enum
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lang_final_phase_enum
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} lang_phase_type;
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} lang_phase_type;
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union lang_statement_union;
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union lang_statement_union;
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enum phase_enum {
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enum phase_enum {
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exp_dataseg_none,
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exp_dataseg_none,
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exp_dataseg_align_seen,
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exp_dataseg_align_seen,
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exp_dataseg_relro_seen,
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exp_dataseg_relro_seen,
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exp_dataseg_end_seen,
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exp_dataseg_end_seen,
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exp_dataseg_relro_adjust,
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exp_dataseg_relro_adjust,
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exp_dataseg_adjust
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exp_dataseg_adjust
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};
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};
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enum relro_enum {
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enum relro_enum {
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exp_dataseg_relro_none,
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exp_dataseg_relro_none,
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exp_dataseg_relro_start,
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exp_dataseg_relro_start,
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exp_dataseg_relro_end,
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exp_dataseg_relro_end,
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};
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};
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struct ldexp_control {
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struct ldexp_control {
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/* Modify expression evaluation depending on this. */
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/* Modify expression evaluation depending on this. */
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lang_phase_type phase;
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lang_phase_type phase;
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/* Principally used for diagnostics. */
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/* Principally used for diagnostics. */
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bfd_boolean assigning_to_dot;
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bfd_boolean assigning_to_dot;
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/* Working results. */
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/* Working results. */
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etree_value_type result;
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etree_value_type result;
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bfd_vma dot;
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bfd_vma dot;
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/* Current dot and section passed to ldexp folder. */
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/* Current dot and section passed to ldexp folder. */
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bfd_vma *dotp;
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bfd_vma *dotp;
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asection *section;
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asection *section;
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/* State machine and results for DATASEG. */
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/* State machine and results for DATASEG. */
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struct {
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struct {
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enum phase_enum phase;
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enum phase_enum phase;
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bfd_vma base, min_base, relro_end, end, pagesize, maxpagesize;
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bfd_vma base, min_base, relro_end, end, pagesize, maxpagesize;
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enum relro_enum relro;
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enum relro_enum relro;
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union lang_statement_union *relro_start_stat;
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union lang_statement_union *relro_start_stat;
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union lang_statement_union *relro_end_stat;
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union lang_statement_union *relro_end_stat;
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} dataseg;
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} dataseg;
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};
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};
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extern struct ldexp_control expld;
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extern struct ldexp_control expld;
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/* A maps from a segment name to a base address. */
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/* A maps from a segment name to a base address. */
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typedef struct segment_struct {
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typedef struct segment_struct {
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/* The next segment in the linked list. */
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/* The next segment in the linked list. */
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struct segment_struct *next;
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struct segment_struct *next;
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/* The name of the sgement. */
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/* The name of the sgement. */
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const char *name;
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const char *name;
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/* The base address for the segment. */
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/* The base address for the segment. */
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bfd_vma value;
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bfd_vma value;
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/* True if a SEGMENT_START directive corresponding to this segment
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/* True if a SEGMENT_START directive corresponding to this segment
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has been seen. */
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has been seen. */
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bfd_boolean used;
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bfd_boolean used;
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} segment_type;
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} segment_type;
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/* The segments specified by the user on the command-line. */
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/* The segments specified by the user on the command-line. */
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extern segment_type *segments;
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extern segment_type *segments;
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typedef struct _fill_type fill_type;
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typedef struct _fill_type fill_type;
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etree_type *exp_intop
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etree_type *exp_intop
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(bfd_vma);
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(bfd_vma);
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etree_type *exp_bigintop
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etree_type *exp_bigintop
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(bfd_vma, char *);
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(bfd_vma, char *);
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etree_type *exp_relop
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etree_type *exp_relop
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(asection *, bfd_vma);
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(asection *, bfd_vma);
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void exp_fold_tree
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void exp_fold_tree
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(etree_type *, asection *, bfd_vma *);
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(etree_type *, asection *, bfd_vma *);
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etree_type *exp_binop
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etree_type *exp_binop
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(int, etree_type *, etree_type *);
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(int, etree_type *, etree_type *);
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etree_type *exp_trinop
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etree_type *exp_trinop
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(int,etree_type *, etree_type *, etree_type *);
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(int,etree_type *, etree_type *, etree_type *);
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etree_type *exp_unop
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etree_type *exp_unop
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(int, etree_type *);
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(int, etree_type *);
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etree_type *exp_nameop
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etree_type *exp_nameop
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(int, const char *);
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(int, const char *);
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etree_type *exp_assop
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etree_type *exp_assop
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(int, const char *, etree_type *);
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(int, const char *, etree_type *);
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etree_type *exp_provide
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etree_type *exp_provide
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(const char *, etree_type *, bfd_boolean);
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(const char *, etree_type *, bfd_boolean);
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etree_type *exp_assert
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etree_type *exp_assert
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(etree_type *, const char *);
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(etree_type *, const char *);
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void exp_print_tree
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void exp_print_tree
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(etree_type *);
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(etree_type *);
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bfd_vma exp_get_vma
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bfd_vma exp_get_vma
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(etree_type *, bfd_vma, char *);
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(etree_type *, bfd_vma, char *);
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int exp_get_value_int
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int exp_get_value_int
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(etree_type *, int, char *);
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(etree_type *, int, char *);
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fill_type *exp_get_fill
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fill_type *exp_get_fill
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(etree_type *, fill_type *, char *);
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(etree_type *, fill_type *, char *);
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bfd_vma exp_get_abs_int
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bfd_vma exp_get_abs_int
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(etree_type *, int, char *);
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(etree_type *, int, char *);
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#endif
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#endif
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