247 lines
6.8 KiB
C
247 lines
6.8 KiB
C
/* ld.h -- general linker header file
|
|
Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000
|
|
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 LD_H
|
|
#define LD_H
|
|
|
|
#ifdef HAVE_LOCALE_H
|
|
# include <locale.h>
|
|
#endif
|
|
|
|
#ifdef ENABLE_NLS
|
|
# include <libintl.h>
|
|
# define _(String) gettext (String)
|
|
# ifdef gettext_noop
|
|
# define N_(String) gettext_noop (String)
|
|
# else
|
|
# define N_(String) (String)
|
|
# endif
|
|
#else
|
|
# define gettext(Msgid) (Msgid)
|
|
# define dgettext(Domainname, Msgid) (Msgid)
|
|
# define dcgettext(Domainname, Msgid, Category) (Msgid)
|
|
# define textdomain(Domainname) while (0) /* nothing */
|
|
# define bindtextdomain(Domainname, Dirname) while (0) /* nothing */
|
|
# define _(String) (String)
|
|
# define N_(String) (String)
|
|
#endif
|
|
|
|
#include "bin-bugs.h"
|
|
|
|
/* Look in this environment name for the linker to pretend to be */
|
|
#define EMULATION_ENVIRON "LDEMULATION"
|
|
/* If in there look for the strings: */
|
|
|
|
/* Look in this variable for a target format */
|
|
#define TARGET_ENVIRON "GNUTARGET"
|
|
|
|
/* Input sections which are put in a section of this name are actually
|
|
discarded. */
|
|
#define DISCARD_SECTION_NAME "/DISCARD/"
|
|
|
|
/* A file name list */
|
|
typedef struct name_list {
|
|
const char *name;
|
|
struct name_list *next;
|
|
}
|
|
name_list;
|
|
|
|
/* A wildcard specification. This is only used in ldgram.y, but it
|
|
winds up in ldgram.h, so we need to define it outside. */
|
|
|
|
struct wildcard_spec {
|
|
const char *name;
|
|
struct name_list *exclude_name_list;
|
|
boolean sorted;
|
|
};
|
|
|
|
/* Extra information we hold on sections */
|
|
typedef struct user_section_struct {
|
|
/* Pointer to the section where this data will go */
|
|
struct lang_input_statement_struct *file;
|
|
} section_userdata_type;
|
|
|
|
#define get_userdata(x) ((x)->userdata)
|
|
|
|
#define BYTE_SIZE (1)
|
|
#define SHORT_SIZE (2)
|
|
#define LONG_SIZE (4)
|
|
#define QUAD_SIZE (8)
|
|
|
|
/* ALIGN macro changed to ALIGN_N to avoid */
|
|
/* conflict in /usr/include/machine/machparam.h */
|
|
/* WARNING: If THIS is a 64 bit address and BOUNDARY is a 32 bit int,
|
|
you must coerce boundary to the same type as THIS.
|
|
??? Is there a portable way to avoid this. */
|
|
#define ALIGN_N(this, boundary) \
|
|
((( (this) + ((boundary) -1)) & (~((boundary)-1))))
|
|
|
|
typedef struct {
|
|
/* 1 => assign space to common symbols even if `relocatable_output'. */
|
|
boolean force_common_definition;
|
|
boolean relax;
|
|
|
|
/* Name of runtime interpreter to invoke. */
|
|
char *interpreter;
|
|
|
|
/* Name to give runtime libary from the -soname argument. */
|
|
char *soname;
|
|
|
|
/* Runtime library search path from the -rpath argument. */
|
|
char *rpath;
|
|
|
|
/* Link time runtime library search path from the -rpath-link
|
|
argument. */
|
|
char *rpath_link;
|
|
|
|
/* Big or little endian as set on command line. */
|
|
enum { ENDIAN_UNSET = 0, ENDIAN_BIG, ENDIAN_LITTLE } endian;
|
|
|
|
/* If true, export all symbols in the dynamic symbol table of an ELF
|
|
executable. */
|
|
boolean export_dynamic;
|
|
|
|
/* If true, build MIPS embedded PIC relocation tables in the output
|
|
file. */
|
|
boolean embedded_relocs;
|
|
|
|
/* If true, force generation of a file with a .exe file. */
|
|
boolean force_exe_suffix;
|
|
|
|
/* If true, generate a cross reference report. */
|
|
boolean cref;
|
|
|
|
/* If true (which is the default), warn about mismatched input
|
|
files. */
|
|
boolean warn_mismatch;
|
|
|
|
/* Remove unreferenced sections? */
|
|
boolean gc_sections;
|
|
|
|
/* Name of shared object whose symbol table should be filtered with
|
|
this shared object. From the --filter option. */
|
|
char *filter_shlib;
|
|
|
|
/* Name of shared object for whose symbol table this shared object
|
|
is an auxiliary filter. From the --auxiliary option. */
|
|
char **auxiliary_filters;
|
|
|
|
/* A version symbol to be applied to the symbol names found in the
|
|
.exports sections. */
|
|
char *version_exports_section;
|
|
|
|
/* If true (the default) check section addresses, once compute,
|
|
fpor overlaps. */
|
|
boolean check_section_addresses;
|
|
|
|
} args_type;
|
|
|
|
extern args_type command_line;
|
|
|
|
typedef int token_code_type;
|
|
|
|
typedef struct {
|
|
bfd_size_type specified_data_size;
|
|
boolean magic_demand_paged;
|
|
boolean make_executable;
|
|
|
|
/* If true, doing a dynamic link. */
|
|
boolean dynamic_link;
|
|
|
|
/* If true, -shared is supported. */
|
|
/* ??? A better way to do this is perhaps to define this in the
|
|
ld_emulation_xfer_struct since this is really a target dependent
|
|
parameter. */
|
|
boolean has_shared;
|
|
|
|
/* If true, build constructors. */
|
|
boolean build_constructors;
|
|
|
|
/* If true, warn about any constructors. */
|
|
boolean warn_constructors;
|
|
|
|
/* If true, warn about merging common symbols with others. */
|
|
boolean warn_common;
|
|
|
|
/* If true, only warn once about a particular undefined symbol. */
|
|
boolean warn_once;
|
|
|
|
/* If true, warn if multiple global-pointers are needed (Alpha
|
|
only). */
|
|
boolean warn_multiple_gp;
|
|
|
|
/* If true, warn if the starting address of an output section
|
|
changes due to the alignment of an input section. */
|
|
boolean warn_section_align;
|
|
|
|
/* If true, warning messages are fatal */
|
|
boolean fatal_warnings;
|
|
|
|
boolean sort_common;
|
|
|
|
boolean text_read_only;
|
|
|
|
char *map_filename;
|
|
FILE *map_file;
|
|
|
|
boolean stats;
|
|
|
|
/* If set, orphan input sections will be mapped to separate output
|
|
sections. */
|
|
boolean unique_orphan_sections;
|
|
|
|
unsigned int split_by_reloc;
|
|
bfd_size_type split_by_file;
|
|
} ld_config_type;
|
|
|
|
extern ld_config_type config;
|
|
|
|
typedef enum {
|
|
lang_first_phase_enum,
|
|
lang_allocating_phase_enum,
|
|
lang_final_phase_enum
|
|
} lang_phase_type;
|
|
|
|
extern boolean had_script;
|
|
extern boolean force_make_executable;
|
|
|
|
/* Non-zero if we are processing a --defsym from the command line. */
|
|
extern int parsing_defsym;
|
|
|
|
extern int yyparse PARAMS ((void));
|
|
|
|
extern void add_cref PARAMS ((const char *, bfd *, asection *, bfd_vma));
|
|
extern void output_cref PARAMS ((FILE *));
|
|
extern void check_nocrossrefs PARAMS ((void));
|
|
|
|
extern void ld_abort PARAMS ((const char *, int, const char *))
|
|
ATTRIBUTE_NORETURN;
|
|
|
|
/* If gcc >= 2.6, we can give a function name, too. */
|
|
#if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6)
|
|
#define __PRETTY_FUNCTION__ ((char*) NULL)
|
|
#endif
|
|
|
|
#undef abort
|
|
#define abort() ld_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__)
|
|
|
|
#endif
|