binutils-gdb/ld/ldemul.c

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/* ldemul.c -- clearing house for ld emulation states
Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 2000
Free Software Foundation, Inc.
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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. */
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#include "bfd.h"
#include "sysdep.h"
#include "ld.h"
#include "ldmisc.h"
#include "ldexp.h"
#include "ldlang.h"
#include "ldfile.h"
#include "ldemul.h"
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#include "ldmain.h"
#include "ldemul-list.h"
ld_emulation_xfer_type *ld_emulation;
void
ldemul_hll (name)
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char *name;
{
ld_emulation->hll (name);
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}
void
ldemul_syslib (name)
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char *name;
{
ld_emulation->syslib (name);
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}
void
ldemul_after_parse ()
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{
ld_emulation->after_parse ();
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}
void
ldemul_before_parse ()
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{
ld_emulation->before_parse ();
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}
void
ldemul_after_open ()
{
ld_emulation->after_open ();
}
void
ldemul_after_allocation ()
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{
ld_emulation->after_allocation ();
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}
void
ldemul_before_allocation ()
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{
if (ld_emulation->before_allocation)
ld_emulation->before_allocation ();
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}
void
ldemul_set_output_arch ()
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{
ld_emulation->set_output_arch ();
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}
void
ldemul_finish ()
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{
if (ld_emulation->finish)
ld_emulation->finish ();
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}
void
ldemul_set_symbols ()
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{
if (ld_emulation->set_symbols)
ld_emulation->set_symbols ();
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}
void
ldemul_create_output_section_statements ()
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{
if (ld_emulation->create_output_section_statements)
ld_emulation->create_output_section_statements ();
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}
char *
ldemul_get_script (isfile)
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int *isfile;
{
return ld_emulation->get_script (isfile);
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}
boolean
ldemul_open_dynamic_archive (arch, search, entry)
const char *arch;
search_dirs_type *search;
lang_input_statement_type *entry;
{
if (ld_emulation->open_dynamic_archive)
return (*ld_emulation->open_dynamic_archive) (arch, search, entry);
return false;
}
boolean
ldemul_place_orphan (file, s)
lang_input_statement_type *file;
asection *s;
{
if (ld_emulation->place_orphan)
return (*ld_emulation->place_orphan) (file, s);
return false;
}
int
ldemul_parse_args (argc, argv)
int argc;
char **argv;
{
/* Try and use the emulation parser if there is one. */
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if (ld_emulation->parse_args)
{
return ld_emulation->parse_args (argc, argv);
}
return 0;
}
/* Let the emulation code handle an unrecognized file. */
boolean
ldemul_unrecognized_file (entry)
lang_input_statement_type *entry;
{
if (ld_emulation->unrecognized_file)
return (*ld_emulation->unrecognized_file) (entry);
return false;
}
/* Let the emulation code handle a recognized file. */
boolean
ldemul_recognized_file (entry)
lang_input_statement_type *entry;
{
if (ld_emulation->recognized_file)
return (*ld_emulation->recognized_file) (entry);
return false;
}
char *
ldemul_choose_target ()
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{
return ld_emulation->choose_target ();
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}
/* The default choose_target function. */
char *
ldemul_default_target ()
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{
char *from_outside = getenv (TARGET_ENVIRON);
if (from_outside != (char *) NULL)
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return from_outside;
return ld_emulation->target_name;
}
void
after_parse_default ()
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{
}
void
after_open_default ()
{
}
void
after_allocation_default ()
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{
}
void
before_allocation_default ()
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{
}
void
set_output_arch_default ()
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{
/* Set the output architecture and machine if possible. */
bfd_set_arch_mach (output_bfd,
ldfile_output_architecture, ldfile_output_machine);
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}
void
syslib_default (ignore)
char *ignore ATTRIBUTE_UNUSED;
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{
info_msg (_("%S SYSLIB ignored\n"));
}
void
hll_default (ignore)
char *ignore ATTRIBUTE_UNUSED;
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{
info_msg (_("%S HLL ignored\n"));
}
ld_emulation_xfer_type *ld_emulations[] = { EMULATION_LIST };
void
ldemul_choose_mode (target)
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char *target;
{
ld_emulation_xfer_type **eptr = ld_emulations;
/* Ignore "gld" prefix. */
if (target[0] == 'g' && target[1] == 'l' && target[2] == 'd')
target += 3;
for (; *eptr; eptr++)
{
if (strcmp (target, (*eptr)->emulation_name) == 0)
{
ld_emulation = *eptr;
return;
}
}
einfo (_("%P: unrecognised emulation mode: %s\n"), target);
einfo (_("Supported emulations: "));
ldemul_list_emulations (stderr);
einfo ("%F\n");
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}
void
ldemul_list_emulations (f)
FILE *f;
{
ld_emulation_xfer_type **eptr = ld_emulations;
boolean first = true;
for (; *eptr; eptr++)
{
if (first)
first = false;
else
fprintf (f, " ");
fprintf (f, "%s", (*eptr)->emulation_name);
}
}
void
ldemul_list_emulation_options (f)
FILE *f;
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{
ld_emulation_xfer_type **eptr;
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int options_found = 0;
for (eptr = ld_emulations; *eptr; eptr++)
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{
ld_emulation_xfer_type *emul = *eptr;
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if (emul->list_options)
{
fprintf (f, "%s: \n", emul->emulation_name);
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emul->list_options (f);
options_found = 1;
}
}
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if (! options_found)
fprintf (f, _(" no emulation specific options.\n"));
}
int
ldemul_find_potential_libraries (name, entry)
char *name;
lang_input_statement_type *entry;
{
if (ld_emulation->find_potential_libraries)
return ld_emulation->find_potential_libraries (name, entry);
return 0;
}