780 lines
22 KiB
Plaintext
780 lines
22 KiB
Plaintext
# This shell script emits a C file. -*- C -*-
|
|
# It does some substitutions.
|
|
cat >e${EMULATION_NAME}.c <<EOF
|
|
/* This file is is generated by a shell script. DO NOT EDIT! */
|
|
|
|
/* 32 bit ELF emulation code for ${EMULATION_NAME}
|
|
Copyright (C) 1991, 1993, 1994, 1995 Free Software Foundation, Inc.
|
|
Written by Steve Chamberlain <sac@cygnus.com>
|
|
ELF support by Ian Lance Taylor <ian@cygnus.com>
|
|
|
|
This file is part of GLD, the Gnu Linker.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
|
|
|
|
#define TARGET_IS_${EMULATION_NAME}
|
|
|
|
#include "bfd.h"
|
|
#include "sysdep.h"
|
|
|
|
#include <ctype.h>
|
|
|
|
#include "bfdlink.h"
|
|
|
|
#include "ld.h"
|
|
#include "ldmain.h"
|
|
#include "ldemul.h"
|
|
#include "ldfile.h"
|
|
#include "ldmisc.h"
|
|
#include "ldexp.h"
|
|
#include "ldlang.h"
|
|
#include "ldgram.h"
|
|
|
|
static void gld${EMULATION_NAME}_before_parse PARAMS ((void));
|
|
static boolean gld${EMULATION_NAME}_open_dynamic_archive
|
|
PARAMS ((const char *, search_dirs_type *, lang_input_statement_type *));
|
|
static void gld${EMULATION_NAME}_after_open PARAMS ((void));
|
|
static void gld${EMULATION_NAME}_check_needed
|
|
PARAMS ((lang_input_statement_type *));
|
|
static void gld${EMULATION_NAME}_stat_needed
|
|
PARAMS ((lang_input_statement_type *));
|
|
static boolean gld${EMULATION_NAME}_search_needed
|
|
PARAMS ((const char *, const char *));
|
|
static boolean gld${EMULATION_NAME}_try_needed PARAMS ((const char *));
|
|
static void gld${EMULATION_NAME}_before_allocation PARAMS ((void));
|
|
static void gld${EMULATION_NAME}_find_statement_assignment
|
|
PARAMS ((lang_statement_union_type *));
|
|
static void gld${EMULATION_NAME}_find_exp_assignment PARAMS ((etree_type *));
|
|
static boolean gld${EMULATION_NAME}_place_orphan
|
|
PARAMS ((lang_input_statement_type *, asection *));
|
|
static void gld${EMULATION_NAME}_place_section
|
|
PARAMS ((lang_statement_union_type *));
|
|
static char *gld${EMULATION_NAME}_get_script PARAMS ((int *isfile));
|
|
|
|
static void
|
|
gld${EMULATION_NAME}_before_parse()
|
|
{
|
|
ldfile_output_architecture = bfd_arch_${ARCH};
|
|
config.dynamic_link = ${DYNAMIC_LINK-true};
|
|
}
|
|
|
|
/* Try to open a dynamic archive. This is where we know that ELF
|
|
dynamic libraries have an extension of .so. */
|
|
|
|
static boolean
|
|
gld${EMULATION_NAME}_open_dynamic_archive (arch, search, entry)
|
|
const char *arch;
|
|
search_dirs_type *search;
|
|
lang_input_statement_type *entry;
|
|
{
|
|
const char *filename;
|
|
char *string;
|
|
|
|
if (! entry->is_archive)
|
|
return false;
|
|
|
|
filename = entry->filename;
|
|
|
|
string = (char *) xmalloc (strlen (search->name)
|
|
+ strlen (filename)
|
|
+ strlen (arch)
|
|
+ sizeof "/lib.so");
|
|
|
|
sprintf (string, "%s/lib%s%s.so", search->name, filename, arch);
|
|
|
|
if (! ldfile_try_open_bfd (string, entry))
|
|
{
|
|
free (string);
|
|
return false;
|
|
}
|
|
|
|
entry->filename = string;
|
|
|
|
/* We have found a dynamic object to include in the link. The ELF
|
|
backend linker will create a DT_NEEDED entry in the .dynamic
|
|
section naming this file. If this file includes a DT_SONAME
|
|
entry, it will be used. Otherwise, the ELF linker will just use
|
|
the name of the file. For an archive found by searching, like
|
|
this one, the DT_NEEDED entry should consist of just the name of
|
|
the file, without the path information used to find it. Note
|
|
that we only need to do this if we have a dynamic object; an
|
|
archive will never be referenced by a DT_NEEDED entry.
|
|
|
|
FIXME: This approach--using bfd_elf_set_dt_needed_name--is not
|
|
very pretty. I haven't been able to think of anything that is
|
|
pretty, though. */
|
|
if (bfd_check_format (entry->the_bfd, bfd_object)
|
|
&& (entry->the_bfd->flags & DYNAMIC) != 0)
|
|
{
|
|
char *needed_name;
|
|
|
|
ASSERT (entry->is_archive && entry->search_dirs_flag);
|
|
needed_name = (char *) xmalloc (strlen (filename)
|
|
+ strlen (arch)
|
|
+ sizeof "lib.so");
|
|
sprintf (needed_name, "lib%s%s.so", filename, arch);
|
|
bfd_elf_set_dt_needed_name (entry->the_bfd, needed_name);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/* These variables are required to pass information back and forth
|
|
between after_open and check_needed and stat_needed. */
|
|
|
|
static struct bfd_elf_link_needed_list *global_needed;
|
|
static struct stat global_stat;
|
|
static boolean global_found;
|
|
|
|
/* This is called after all the input files have been opened. */
|
|
|
|
static void
|
|
gld${EMULATION_NAME}_after_open ()
|
|
{
|
|
struct bfd_elf_link_needed_list *needed, *l;
|
|
|
|
/* We only need to worry about this when doing a final link. */
|
|
if (link_info.relocateable || link_info.shared)
|
|
return;
|
|
|
|
/* Get the list of files which appear in DT_NEEDED entries in
|
|
dynamic objects included in the link (often there will be none).
|
|
For each such file, we want to track down the corresponding
|
|
library, and include the symbol table in the link. This is what
|
|
the runtime dynamic linker will do. Tracking the files down here
|
|
permits one dynamic object to include another without requiring
|
|
special action by the person doing the link. Note that the
|
|
needed list can actually grow while we are stepping through this
|
|
loop. */
|
|
needed = bfd_elf_get_needed_list (output_bfd, &link_info);
|
|
for (l = needed; l != NULL; l = l->next)
|
|
{
|
|
struct bfd_elf_link_needed_list *ll;
|
|
const char *lib_path;
|
|
size_t len;
|
|
search_dirs_type *search;
|
|
|
|
/* If we've already seen this file, skip it. */
|
|
for (ll = needed; ll != l; ll = ll->next)
|
|
if (strcmp (ll->name, l->name) == 0)
|
|
break;
|
|
if (ll != l)
|
|
continue;
|
|
|
|
/* See if this file was included in the link explicitly. */
|
|
global_needed = l;
|
|
global_found = false;
|
|
lang_for_each_input_file (gld${EMULATION_NAME}_check_needed);
|
|
if (global_found)
|
|
continue;
|
|
|
|
/* We need to find this file and include the symbol table. We
|
|
want to search for the file in the same way that the dynamic
|
|
linker will search. That means that we want to use rpath,
|
|
then the environment variable LD_LIBRARY_PATH, then the
|
|
linker script LIB_SEARCH_DIRS. We do not search using the -L
|
|
arguments. */
|
|
if (gld${EMULATION_NAME}_search_needed (command_line.rpath, l->name))
|
|
continue;
|
|
lib_path = (const char *) getenv ("LD_LIBRARY_PATH");
|
|
if (gld${EMULATION_NAME}_search_needed (lib_path, l->name))
|
|
continue;
|
|
len = strlen (l->name);
|
|
for (search = search_head; search != NULL; search = search->next)
|
|
{
|
|
char *filename;
|
|
|
|
if (search->cmdline)
|
|
continue;
|
|
filename = (char *) xmalloc (strlen (search->name) + len + 2);
|
|
sprintf (filename, "%s/%s", search->name, l->name);
|
|
if (gld${EMULATION_NAME}_try_needed (filename))
|
|
break;
|
|
free (filename);
|
|
}
|
|
if (search != NULL)
|
|
continue;
|
|
|
|
einfo ("%P: warning: %s, needed by %B, not found\n",
|
|
l->name, l->by);
|
|
}
|
|
}
|
|
|
|
/* Search for a needed file in a path. */
|
|
|
|
static boolean
|
|
gld${EMULATION_NAME}_search_needed (path, name)
|
|
const char *path;
|
|
const char *name;
|
|
{
|
|
const char *s;
|
|
size_t len;
|
|
|
|
if (path == NULL || *path == '\0')
|
|
return false;
|
|
len = strlen (name);
|
|
while (1)
|
|
{
|
|
char *filename, *sset;
|
|
|
|
s = strchr (path, ':');
|
|
if (s == NULL)
|
|
s = path + strlen (path);
|
|
|
|
filename = (char *) xmalloc (s - path + len + 2);
|
|
if (s == path)
|
|
sset = filename;
|
|
else
|
|
{
|
|
memcpy (filename, path, s - path);
|
|
filename[s - path] = '/';
|
|
sset = filename + (s - path) + 1;
|
|
}
|
|
strcpy (sset, name);
|
|
|
|
if (gld${EMULATION_NAME}_try_needed (filename))
|
|
return true;
|
|
|
|
free (filename);
|
|
|
|
if (*s == '\0')
|
|
break;
|
|
path = s + 1;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/* This function is called for each possible name for a dynamic object
|
|
named by a DT_NEEDED entry. */
|
|
|
|
static boolean
|
|
gld${EMULATION_NAME}_try_needed (name)
|
|
const char *name;
|
|
{
|
|
bfd *abfd;
|
|
|
|
abfd = bfd_openr (name, bfd_get_target (output_bfd));
|
|
if (abfd == NULL)
|
|
return false;
|
|
if (! bfd_check_format (abfd, bfd_object))
|
|
{
|
|
(void) bfd_close (abfd);
|
|
return false;
|
|
}
|
|
if ((bfd_get_file_flags (abfd) & DYNAMIC) == 0)
|
|
{
|
|
(void) bfd_close (abfd);
|
|
return false;
|
|
}
|
|
|
|
/* We've found a dynamic object matching the DT_NEEDED entry. */
|
|
|
|
/* We have already checked that there is no other input file of the
|
|
same name. We must now check again that we are not including the
|
|
same file twice. We need to do this because on many systems
|
|
libc.so is a symlink to, e.g., libc.so.1. The SONAME entry will
|
|
reference libc.so.1. If we have already included libc.so, we
|
|
don't want to include libc.so.1 if they are the same file, and we
|
|
can only check that using stat. */
|
|
|
|
if (bfd_stat (abfd, &global_stat) != 0)
|
|
einfo ("%F%P:%B: bfd_stat failed: %E\n", abfd);
|
|
global_found = false;
|
|
lang_for_each_input_file (gld${EMULATION_NAME}_stat_needed);
|
|
if (global_found)
|
|
{
|
|
/* Return true to indicate that we found the file, even though
|
|
we aren't going to do anything with it. */
|
|
return true;
|
|
}
|
|
|
|
/* Tell the ELF backend that don't want the output file to have a
|
|
DT_NEEDED entry for this file. */
|
|
bfd_elf_set_dt_needed_name (abfd, "");
|
|
|
|
/* Add this file into the symbol table. */
|
|
if (! bfd_link_add_symbols (abfd, &link_info))
|
|
einfo ("%F%B: could not read symbols: %E\n", abfd);
|
|
|
|
return true;
|
|
}
|
|
|
|
/* See if an input file matches a DT_NEEDED entry by name. */
|
|
|
|
static void
|
|
gld${EMULATION_NAME}_check_needed (s)
|
|
lang_input_statement_type *s;
|
|
{
|
|
if (s->filename != NULL
|
|
&& strcmp (s->filename, global_needed->name) == 0)
|
|
global_found = true;
|
|
else if (s->search_dirs_flag
|
|
&& s->filename != NULL
|
|
&& strchr (global_needed->name, '/') == NULL)
|
|
{
|
|
const char *f;
|
|
|
|
f = strrchr (s->filename, '/');
|
|
if (f != NULL
|
|
&& strcmp (f + 1, global_needed->name) == 0)
|
|
global_found = true;
|
|
}
|
|
}
|
|
|
|
/* See if an input file matches a DT_NEEDED entry by running stat on
|
|
the file. */
|
|
|
|
static void
|
|
gld${EMULATION_NAME}_stat_needed (s)
|
|
lang_input_statement_type *s;
|
|
{
|
|
if (global_found)
|
|
return;
|
|
if (s->the_bfd != NULL)
|
|
{
|
|
struct stat st;
|
|
|
|
if (bfd_stat (s->the_bfd, &st) != 0)
|
|
einfo ("%P:%B: bfd_stat failed: %E\n", s->the_bfd);
|
|
else
|
|
{
|
|
if (st.st_dev == global_stat.st_dev
|
|
&& st.st_ino == global_stat.st_ino)
|
|
global_found = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* This is called after the sections have been attached to output
|
|
sections, but before any sizes or addresses have been set. */
|
|
|
|
static void
|
|
gld${EMULATION_NAME}_before_allocation ()
|
|
{
|
|
asection *sinterp;
|
|
|
|
/* If we are going to make any variable assignments, we need to let
|
|
the ELF backend know about them in case the variables are
|
|
referred to by dynamic objects. */
|
|
lang_for_each_statement (gld${EMULATION_NAME}_find_statement_assignment);
|
|
|
|
/* Let the ELF backend work out the sizes of any sections required
|
|
by dynamic linking. */
|
|
if (! bfd_elf32_size_dynamic_sections (output_bfd,
|
|
command_line.soname,
|
|
command_line.rpath,
|
|
command_line.export_dynamic,
|
|
&link_info,
|
|
&sinterp))
|
|
einfo ("%P%F: failed to set dynamic section sizes: %E\n");
|
|
|
|
/* Let the user override the dynamic linker we are using. */
|
|
if (command_line.interpreter != NULL
|
|
&& sinterp != NULL)
|
|
{
|
|
sinterp->contents = (bfd_byte *) command_line.interpreter;
|
|
sinterp->_raw_size = strlen (command_line.interpreter) + 1;
|
|
}
|
|
|
|
/* Look for any sections named .gnu.warning. As a GNU extensions,
|
|
we treat such sections as containing warning messages. We print
|
|
out the warning message, and then zero out the section size so
|
|
that it does not get copied into the output file. */
|
|
|
|
{
|
|
LANG_FOR_EACH_INPUT_STATEMENT (is)
|
|
{
|
|
asection *s;
|
|
bfd_size_type sz;
|
|
char *msg;
|
|
boolean ret;
|
|
|
|
if (is->just_syms_flag)
|
|
continue;
|
|
|
|
s = bfd_get_section_by_name (is->the_bfd, ".gnu.warning");
|
|
if (s == NULL)
|
|
continue;
|
|
|
|
sz = bfd_section_size (is->the_bfd, s);
|
|
msg = xmalloc ((size_t) sz + 1);
|
|
if (! bfd_get_section_contents (is->the_bfd, s, msg, (file_ptr) 0, sz))
|
|
einfo ("%F%B: Can't read contents of section .gnu.warning: %E\n",
|
|
is->the_bfd);
|
|
msg[sz] = '\0';
|
|
ret = link_info.callbacks->warning (&link_info, msg,
|
|
(const char *) NULL,
|
|
is->the_bfd, (asection *) NULL,
|
|
(bfd_vma) 0);
|
|
ASSERT (ret);
|
|
free (msg);
|
|
|
|
/* Clobber the section size, so that we don't waste copying the
|
|
warning into the output file. */
|
|
s->_raw_size = 0;
|
|
}
|
|
}
|
|
|
|
#if defined (TARGET_IS_elf32bmip) || defined (TARGET_IS_elf32lmip)
|
|
/* For MIPS ELF the .reginfo section requires special handling.
|
|
Each input section is 24 bytes, and the final output section must
|
|
also be 24 bytes. We handle this by clobbering all but the first
|
|
input section size to 0. The .reginfo section is handled
|
|
specially by the backend code anyhow. */
|
|
{
|
|
boolean found = false;
|
|
LANG_FOR_EACH_INPUT_STATEMENT (is)
|
|
{
|
|
asection *s;
|
|
|
|
if (is->just_syms_flag)
|
|
continue;
|
|
|
|
s = bfd_get_section_by_name (is->the_bfd, ".reginfo");
|
|
if (s == NULL)
|
|
continue;
|
|
|
|
if (! found)
|
|
{
|
|
found = true;
|
|
continue;
|
|
}
|
|
|
|
s->_raw_size = 0;
|
|
s->_cooked_size = 0;
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/* This is called by the before_allocation routine via
|
|
lang_for_each_statement. It locates any assignment statements, and
|
|
tells the ELF backend about them, in case they are assignments to
|
|
symbols which are referred to by dynamic objects. */
|
|
|
|
static void
|
|
gld${EMULATION_NAME}_find_statement_assignment (s)
|
|
lang_statement_union_type *s;
|
|
{
|
|
if (s->header.type == lang_assignment_statement_enum)
|
|
gld${EMULATION_NAME}_find_exp_assignment (s->assignment_statement.exp);
|
|
}
|
|
|
|
/* Look through an expression for an assignment statement. */
|
|
|
|
static void
|
|
gld${EMULATION_NAME}_find_exp_assignment (exp)
|
|
etree_type *exp;
|
|
{
|
|
struct bfd_link_hash_entry *h;
|
|
|
|
switch (exp->type.node_class)
|
|
{
|
|
case etree_provide:
|
|
h = bfd_link_hash_lookup (link_info.hash, exp->assign.dst,
|
|
false, false, false);
|
|
if (h == NULL)
|
|
break;
|
|
|
|
/* We call record_link_assignment even if the symbol is defined.
|
|
This is because if it is defined by a dynamic object, we
|
|
actually want to use the value defined by the linker script,
|
|
not the value from the dynamic object (because we are setting
|
|
symbols like etext). If the symbol is defined by a regular
|
|
object, then, as it happens, calling record_link_assignment
|
|
will do no harm. */
|
|
|
|
/* Fall through. */
|
|
case etree_assign:
|
|
if (strcmp (exp->assign.dst, ".") != 0)
|
|
{
|
|
if (! (bfd_elf32_record_link_assignment
|
|
(output_bfd, &link_info, exp->assign.dst,
|
|
exp->type.node_class == etree_provide ? true : false)))
|
|
einfo ("%P%F: failed to record assignment to %s: %E\n",
|
|
exp->assign.dst);
|
|
}
|
|
gld${EMULATION_NAME}_find_exp_assignment (exp->assign.src);
|
|
break;
|
|
|
|
case etree_binary:
|
|
gld${EMULATION_NAME}_find_exp_assignment (exp->binary.lhs);
|
|
gld${EMULATION_NAME}_find_exp_assignment (exp->binary.rhs);
|
|
break;
|
|
|
|
case etree_trinary:
|
|
gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.lhs);
|
|
gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.lhs);
|
|
gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.rhs);
|
|
break;
|
|
|
|
case etree_unary:
|
|
gld${EMULATION_NAME}_find_exp_assignment (exp->unary.child);
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Place an orphan section. We use this to put random SHF_ALLOC
|
|
sections in the right segment. */
|
|
|
|
static asection *hold_section;
|
|
static lang_output_section_statement_type *hold_use;
|
|
static lang_output_section_statement_type *hold_text;
|
|
static lang_output_section_statement_type *hold_data;
|
|
static lang_output_section_statement_type *hold_bss;
|
|
static lang_output_section_statement_type *hold_rel;
|
|
|
|
/*ARGSUSED*/
|
|
static boolean
|
|
gld${EMULATION_NAME}_place_orphan (file, s)
|
|
lang_input_statement_type *file;
|
|
asection *s;
|
|
{
|
|
lang_output_section_statement_type *place;
|
|
asection *snew, **pps;
|
|
lang_statement_list_type *old;
|
|
lang_statement_list_type add;
|
|
etree_type *address;
|
|
const char *secname, *ps;
|
|
lang_output_section_statement_type *os;
|
|
|
|
if ((s->flags & SEC_ALLOC) == 0)
|
|
return false;
|
|
|
|
/* Look through the script to see where to place this section. */
|
|
hold_section = s;
|
|
hold_use = NULL;
|
|
lang_for_each_statement (gld${EMULATION_NAME}_place_section);
|
|
|
|
if (hold_use != NULL)
|
|
{
|
|
/* We have already placed a section with this name. */
|
|
wild_doit (&hold_use->children, s, hold_use, file);
|
|
return true;
|
|
}
|
|
|
|
secname = bfd_get_section_name (s->owner, s);
|
|
|
|
/* If this is a final link, then always put .gnu.warning.SYMBOL
|
|
sections into the .text section to get them out of the way. */
|
|
if (! link_info.shared
|
|
&& ! link_info.relocateable
|
|
&& strncmp (secname, ".gnu.warning.", sizeof ".gnu.warning." - 1) == 0
|
|
&& hold_text != NULL)
|
|
{
|
|
wild_doit (&hold_text->children, s, hold_text, file);
|
|
return true;
|
|
}
|
|
|
|
/* Decide which segment the section should go in based on the
|
|
section name and section flags. */
|
|
place = NULL;
|
|
if ((s->flags & SEC_HAS_CONTENTS) == 0
|
|
&& hold_bss != NULL)
|
|
place = hold_bss;
|
|
else if ((s->flags & SEC_READONLY) == 0
|
|
&& hold_data != NULL)
|
|
place = hold_data;
|
|
else if (strncmp (secname, ".rel", 4) == 0
|
|
&& hold_rel != NULL)
|
|
place = hold_rel;
|
|
else if ((s->flags & SEC_READONLY) != 0
|
|
&& hold_text != NULL)
|
|
place = hold_text;
|
|
if (place == NULL)
|
|
return false;
|
|
|
|
/* Create the section in the output file, and put it in the right
|
|
place. This shuffling is to make the output file look neater. */
|
|
snew = bfd_make_section (output_bfd, secname);
|
|
if (snew == NULL)
|
|
einfo ("%P%F: output format %s cannot represent section called %s\n",
|
|
output_bfd->xvec->name, secname);
|
|
if (place->bfd_section != NULL)
|
|
{
|
|
for (pps = &output_bfd->sections; *pps != snew; pps = &(*pps)->next)
|
|
;
|
|
*pps = snew->next;
|
|
snew->next = place->bfd_section->next;
|
|
place->bfd_section->next = snew;
|
|
}
|
|
|
|
/* Start building a list of statements for this section. */
|
|
old = stat_ptr;
|
|
stat_ptr = &add;
|
|
lang_list_init (stat_ptr);
|
|
|
|
/* If the name of the section is representable in C, then create
|
|
symbols to mark the start and the end of the section. */
|
|
for (ps = secname; *ps != '\0'; ps++)
|
|
if (! isalnum (*ps) && *ps != '_')
|
|
break;
|
|
if (*ps == '\0' && config.build_constructors)
|
|
{
|
|
char *symname;
|
|
|
|
symname = (char *) xmalloc (ps - secname + sizeof "__start_");
|
|
sprintf (symname, "__start_%s", secname);
|
|
lang_add_assignment (exp_assop ('=', symname,
|
|
exp_nameop (NAME, ".")));
|
|
}
|
|
|
|
if (! link_info.relocateable)
|
|
address = NULL;
|
|
else
|
|
address = exp_intop ((bfd_vma) 0);
|
|
|
|
lang_enter_output_section_statement (secname, address, 0,
|
|
(bfd_vma) 0,
|
|
(etree_type *) NULL,
|
|
(etree_type *) NULL,
|
|
(etree_type *) NULL);
|
|
|
|
os = lang_output_section_statement_lookup (secname);
|
|
wild_doit (&os->children, s, os, file);
|
|
|
|
lang_leave_output_section_statement ((bfd_vma) 0, "*default*");
|
|
stat_ptr = &add;
|
|
|
|
if (*ps == '\0' && config.build_constructors)
|
|
{
|
|
char *symname;
|
|
|
|
symname = (char *) xmalloc (ps - secname + sizeof "__stop_");
|
|
sprintf (symname, "__stop_%s", secname);
|
|
lang_add_assignment (exp_assop ('=', symname,
|
|
exp_nameop (NAME, ".")));
|
|
}
|
|
|
|
/* Now stick the new statement list right after PLACE. */
|
|
*add.tail = place->header.next;
|
|
place->header.next = add.head;
|
|
|
|
stat_ptr = old;
|
|
|
|
return true;
|
|
}
|
|
|
|
static void
|
|
gld${EMULATION_NAME}_place_section (s)
|
|
lang_statement_union_type *s;
|
|
{
|
|
lang_output_section_statement_type *os;
|
|
|
|
if (s->header.type != lang_output_section_statement_enum)
|
|
return;
|
|
|
|
os = &s->output_section_statement;
|
|
|
|
if (strcmp (os->name, hold_section->name) == 0)
|
|
hold_use = os;
|
|
|
|
if (strcmp (os->name, ".text") == 0)
|
|
hold_text = os;
|
|
else if (strcmp (os->name, ".data") == 0)
|
|
hold_data = os;
|
|
else if (strcmp (os->name, ".bss") == 0)
|
|
hold_bss = os;
|
|
else if (hold_rel == NULL
|
|
&& strncmp (os->name, ".rel", 4) == 0)
|
|
hold_rel = os;
|
|
}
|
|
|
|
static char *
|
|
gld${EMULATION_NAME}_get_script(isfile)
|
|
int *isfile;
|
|
EOF
|
|
|
|
if test -n "$COMPILE_IN"
|
|
then
|
|
# Scripts compiled in.
|
|
|
|
# sed commands to quote an ld script as a C string.
|
|
sc='s/["\\]/\\&/g
|
|
s/$/\\n\\/
|
|
1s/^/"/
|
|
$s/$/n"/
|
|
'
|
|
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
{
|
|
*isfile = 0;
|
|
|
|
if (link_info.relocateable == true && config.build_constructors == true)
|
|
return `sed "$sc" ldscripts/${EMULATION_NAME}.xu`;
|
|
else if (link_info.relocateable == true)
|
|
return `sed "$sc" ldscripts/${EMULATION_NAME}.xr`;
|
|
else if (!config.text_read_only)
|
|
return `sed "$sc" ldscripts/${EMULATION_NAME}.xbn`;
|
|
else if (!config.magic_demand_paged)
|
|
return `sed "$sc" ldscripts/${EMULATION_NAME}.xn`;
|
|
else if (link_info.shared)
|
|
return `sed "$sc" ldscripts/${EMULATION_NAME}.xs`;
|
|
else
|
|
return `sed "$sc" ldscripts/${EMULATION_NAME}.x`;
|
|
}
|
|
EOF
|
|
|
|
else
|
|
# Scripts read from the filesystem.
|
|
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
{
|
|
*isfile = 1;
|
|
|
|
if (link_info.relocateable == true && config.build_constructors == true)
|
|
return "ldscripts/${EMULATION_NAME}.xu";
|
|
else if (link_info.relocateable == true)
|
|
return "ldscripts/${EMULATION_NAME}.xr";
|
|
else if (!config.text_read_only)
|
|
return "ldscripts/${EMULATION_NAME}.xbn";
|
|
else if (!config.magic_demand_paged)
|
|
return "ldscripts/${EMULATION_NAME}.xn";
|
|
else if (link_info.shared)
|
|
return "ldscripts/${EMULATION_NAME}.xs";
|
|
else
|
|
return "ldscripts/${EMULATION_NAME}.x";
|
|
}
|
|
EOF
|
|
|
|
fi
|
|
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
|
|
struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
|
|
{
|
|
gld${EMULATION_NAME}_before_parse,
|
|
syslib_default,
|
|
hll_default,
|
|
after_parse_default,
|
|
gld${EMULATION_NAME}_after_open,
|
|
after_allocation_default,
|
|
set_output_arch_default,
|
|
ldemul_default_target,
|
|
gld${EMULATION_NAME}_before_allocation,
|
|
gld${EMULATION_NAME}_get_script,
|
|
"${EMULATION_NAME}",
|
|
"${OUTPUT_FORMAT}",
|
|
NULL,
|
|
NULL,
|
|
gld${EMULATION_NAME}_open_dynamic_archive,
|
|
gld${EMULATION_NAME}_place_orphan
|
|
};
|
|
EOF
|