e3070fef41
* ldexp.c (fold_binary) <case DATA_SEGMENT_ALIGN>: Initialize them. * ldlang.c (lang_size_sections): Use them to avoid wasting virtual address space at DATA_SEGMENT_ALIGN. Fix computation of expected PT_GNU_RELRO segment end.
160 lines
3.9 KiB
C
160 lines
3.9 KiB
C
/* ldexp.h -
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Copyright 1991, 1992, 1993, 1994, 1995, 1998, 1999, 2000, 2001, 2002,
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2003, 2004 Free Software Foundation, Inc.
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This file is part of GLD, the Gnu Linker.
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GLD 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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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GLD 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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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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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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along with GLD; see the file COPYING. If not, write to the Free
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Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA. */
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#ifndef LDEXP_H
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#define LDEXP_H
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/* The result of an expression tree */
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typedef struct {
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bfd_vma value;
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char *str;
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struct lang_output_section_statement_struct *section;
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bfd_boolean valid_p;
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} etree_value_type;
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typedef struct {
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int node_code;
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enum {
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etree_binary,
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etree_trinary,
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etree_unary,
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etree_name,
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etree_assign,
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etree_provide,
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etree_provided,
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etree_undef,
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etree_unspec,
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etree_value,
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etree_assert,
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etree_rel
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} node_class;
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} node_type;
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typedef union etree_union {
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node_type type;
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struct {
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node_type type;
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union etree_union *lhs;
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union etree_union *rhs;
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} binary;
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struct {
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node_type type;
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union etree_union *cond;
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union etree_union *lhs;
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union etree_union *rhs;
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} trinary;
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struct {
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node_type type;
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const char *dst;
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union etree_union *src;
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} assign;
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struct {
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node_type type;
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union etree_union *child;
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} unary;
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struct {
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node_type type;
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const char *name;
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} name;
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struct {
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node_type type;
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bfd_vma value;
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char *str;
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} value;
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struct {
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node_type type;
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asection *section;
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bfd_vma value;
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} rel;
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struct {
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node_type type;
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union etree_union *child;
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const char *message;
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} assert_s;
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} etree_type;
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extern struct exp_data_seg {
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enum {
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exp_dataseg_none,
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exp_dataseg_align_seen,
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exp_dataseg_relro_seen,
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exp_dataseg_end_seen,
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exp_dataseg_relro_adjust,
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exp_dataseg_adjust
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} phase;
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bfd_vma base, min_base, relro_end, end, pagesize, maxpagesize;
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} exp_data_seg;
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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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/* The next segment in the linked list. */
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struct segment_struct *next;
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/* The name of the sgement. */
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const char *name;
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/* The base address for the segment. */
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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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has been seen. */
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bfd_boolean used;
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} segment_type;
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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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typedef struct _fill_type fill_type;
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etree_type *exp_intop
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(bfd_vma);
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etree_type *exp_bigintop
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(bfd_vma, char *);
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etree_type *exp_relop
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(asection *, bfd_vma);
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etree_value_type invalid
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(void);
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etree_value_type exp_fold_tree
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(etree_type *, struct lang_output_section_statement_struct *,
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lang_phase_type, bfd_vma, bfd_vma *);
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etree_type *exp_binop
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(int, etree_type *, etree_type *);
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etree_type *exp_trinop
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(int,etree_type *, etree_type *, etree_type *);
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etree_type *exp_unop
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(int, etree_type *);
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etree_type *exp_nameop
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(int, const char *);
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etree_type *exp_assop
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(int, const char *, etree_type *);
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etree_type *exp_provide
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(const char *, etree_type *);
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etree_type *exp_assert
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(etree_type *, const char *);
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void exp_print_tree
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(etree_type *);
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bfd_vma exp_get_vma
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(etree_type *, bfd_vma, char *, lang_phase_type);
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int exp_get_value_int
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(etree_type *, int, char *, lang_phase_type);
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fill_type *exp_get_fill
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(etree_type *, fill_type *, char *, lang_phase_type);
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bfd_vma exp_get_abs_int
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(etree_type *, int, char *, lang_phase_type);
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#endif
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