old-cross-binutils/ld/ldexp.h
Alan Modra e9ee469ad1 * ld.h (lang_phase_type): Move to..
* ldexp.h: ..here.  Add lang_mark_phase_enum.
	(node_type): Remove etree_undef and etree_unspec.
	(exp_data_seg): Delete.
	(struct ldexp_control, expld): New.
	(invalid, exp_mark_used_section): Delete.
	(exp_fold_tree, exp_get_vma, exp_get_value_int, exp_get_fill,
	exp_get_abs_int): Update prototypes.
	* ldexp.c (assigning_to_dot): Delete.
	(expld): Define.
	(make_abs): Operate directly on expld.result.  Update all callers.
	(new_abs): Likewise.  Return void.
	(new_rel_from_abs): Rename from new_rel_from_section.
	(new_rel, new_rel_from_abs): Operate on expld.result and return void.
	Update all callers.
	(fold_unary): Operate on expld.result and return void.  Remove
	"current_section", "allocation_done", "dot", "dotp" and "mark_used"
	params.  Update all callers.
	(fold_binary, fold_trinary, fold_name, exp_fold_tree_1): Likewise.
	(fold_unary <ALIGN_K>): Ensure alignment is absolute.
	(fold_unary <ABSOLUTE>): Use make_abs.
	(fold_unary <DATA_SEGMENT_END>): Evaluate mark_phase as for
	allocating_phase.
	(fold_binary <DATA_SEGMENT_ALIGN, DATA_SEGMENT_RELRO_END, >): Ditto.
	(fold_binary <'%','/'>): Don't error if marking.
	(fold_name <SIZEOF_HEADERS>): Don't call bfd_sizeof_headers when
	marking.
	(fold_name <NAME>): Remove FIXME; -R is handled correctly.  Don't
	error when marking.
	(fold_name <ADDR, LOADADDR, SIZEOF>): Don't set SEC_KEEP.
	(exp_fold_tree_1): Don't error when marking.
	(exp_fold_tree_1 <etree_rel>): Evaluate in all phases except first.
	(exp_fold_tree_1 <etree_assign to dot>): Don't check for NULL
	current section, instead check for NULL dotp.
	(exp_fold_tree_1 <etree_provide>): Don't evaluate the assignment
	source unless the symbol is referenced and undefined.
	(exp_fold_tree): Remove "allocation_done" and "dot" params.  Save
	params to expld.
	(exp_fold_tree_no_dot): Remove "current_section", "allocation_done
	and "mark_used" params.  Save params to expld.  Update all callers.
	(exp_assop): Do without temp var.
	(exp_print_tree <etree_undef>): Delete code.
	(exp_get_vma): Remove "allocation_done" param.  Correct error return.
	(exp_get_fill, exp_get_abs_int): Likewise.
	(exp_get_value_int): Remove "allocation_done" param.
	(exp_mark_used_section): Delete.
	* ldgram.y (fill_exp): Update exp_get_fill call.
	(origin_spec, length_spec): Update exp_get_vma call.
	* ldlang.c (lang_init): Don't bother clearing lang_statement_iteration.
	(lang_mark_used_section_1, lang_mark_used_section): Delete.
	(strip_excluded_output_sections): Call one_lang_size_sections_pass in
	marking mode.  Merge old lang_mark_used_section code.  Correct handling
	of output sections with excluded input sections and data statements.
	Don't drop non-zero sized sections.  Don't zap os->bfd_section.
	Do set SEC_EXCLUDE when appropriate.
	(print_output_section_statement): Update for changed ldexp.c
	interface.
	(print_assignment, lang_size_sections_1): Likewise.
	(lang_do_assignments_1, lang_enter_output_section_statement): Likewise.
	(lang_new_phdr, lang_record_phdrs): Likewise.
	(lang_size_sections): Likewise.
	(insert_pad): Use following statement if it is a pad, rather than
	creating a new one.
	(lang_size_sections_1 <lang_output_section_statement_enum>): Do
	process ignored output section to set vma and lma, but don't
	update dot for these sections.  Don't error if marking.
	(lang_size_sections_1 <lang_assignment_statement_enum>): Don't
	update dot for ignored sections.
	(lang_size_sections_1 <lang_data_statement_enum>): Don't mark absolute
	section with SEC_ALLOC.
	(one_lang_size_sections_pass): New function.
	(lang_size_sections): Remove first five params.  Set expld.phase on
	entry and exit.   Use one_lang_size_sections_pass.
	(lang_do_assignments): Remove all params.  Update all callers.
	(lang_reset_memory_regions): Clear os->processed for all output
	section statements.
	* ldlang.h (lang_do_assignments): Update prototype.
	(lang_size_sections): Likewise.
	(one_lang_size_sections_pass): Declare.
	* pe-dll.c (pe_dll_fill_sections, pe_exe_fill_sections): Update
	lang_size_sections and lang_do_assignments calls.
	* emultempl/elf32.em (layout_sections_again): Likewise.
	* emultempl/ppc64elf.em (ppc_before_allocation): Use
	one_lang_size_sections_pass.
2005-06-09 02:05:47 +00:00

182 lines
4.2 KiB
C

/* ldexp.h -
Copyright 1991, 1992, 1993, 1994, 1995, 1998, 1999, 2000, 2001, 2002,
2003, 2004, 2005 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, 51 Franklin Street - Fifth Floor, Boston, MA
02110-1301, USA. */
#ifndef LDEXP_H
#define LDEXP_H
/* The result of an expression tree */
typedef struct {
bfd_vma value;
char *str;
asection *section;
bfd_boolean valid_p;
} etree_value_type;
typedef struct {
int node_code;
enum {
etree_binary,
etree_trinary,
etree_unary,
etree_name,
etree_assign,
etree_provide,
etree_provided,
etree_value,
etree_assert,
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;
char *str;
} value;
struct {
node_type type;
asection *section;
bfd_vma value;
} rel;
struct {
node_type type;
union etree_union *child;
const char *message;
} assert_s;
} etree_type;
typedef enum {
lang_first_phase_enum,
lang_mark_phase_enum,
lang_allocating_phase_enum,
lang_final_phase_enum
} lang_phase_type;
struct ldexp_control {
/* Modify expression evaluation depending on this. */
lang_phase_type phase;
/* Principally used for diagnostics. */
bfd_boolean assigning_to_dot;
/* Working results. */
etree_value_type result;
bfd_vma dot;
/* Current dot and section passed to ldexp folder. */
bfd_vma *dotp;
asection *section;
/* State machine and results for DATASEG. */
struct {
enum {
exp_dataseg_none,
exp_dataseg_align_seen,
exp_dataseg_relro_seen,
exp_dataseg_end_seen,
exp_dataseg_relro_adjust,
exp_dataseg_adjust
} phase;
bfd_vma base, min_base, relro_end, end, pagesize, maxpagesize;
} dataseg;
};
extern struct ldexp_control expld;
/* A maps from a segment name to a base address. */
typedef struct segment_struct {
/* The next segment in the linked list. */
struct segment_struct *next;
/* The name of the sgement. */
const char *name;
/* The base address for the segment. */
bfd_vma value;
/* True if a SEGMENT_START directive corresponding to this segment
has been seen. */
bfd_boolean used;
} segment_type;
/* The segments specified by the user on the command-line. */
extern segment_type *segments;
typedef struct _fill_type fill_type;
etree_type *exp_intop
(bfd_vma);
etree_type *exp_bigintop
(bfd_vma, char *);
etree_type *exp_relop
(asection *, bfd_vma);
void exp_fold_tree
(etree_type *, asection *, bfd_vma *);
etree_type *exp_binop
(int, etree_type *, etree_type *);
etree_type *exp_trinop
(int,etree_type *, etree_type *, etree_type *);
etree_type *exp_unop
(int, etree_type *);
etree_type *exp_nameop
(int, const char *);
etree_type *exp_assop
(int, const char *, etree_type *);
etree_type *exp_provide
(const char *, etree_type *);
etree_type *exp_assert
(etree_type *, const char *);
void exp_print_tree
(etree_type *);
bfd_vma exp_get_vma
(etree_type *, bfd_vma, char *);
int exp_get_value_int
(etree_type *, int, char *);
fill_type *exp_get_fill
(etree_type *, fill_type *, char *);
bfd_vma exp_get_abs_int
(etree_type *, int, char *);
#endif