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# This shell script emits a C file. -*- C -*-
# Copyright 2002 Free Software Foundation, Inc.
#
# 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.
#
# This file is sourced from elf32.em, and defines extra powerpc64-elf
# specific routines.
#
cat >>e${EMULATION_NAME}.c <<EOF
#include "elf64-ppc.h"
static int need_laying_out = 0;
static void gld${EMULATION_NAME}_after_allocation PARAMS ((void));
static void gld${EMULATION_NAME}_finish PARAMS ((void));
/* Call the back-end function to set TOC base after we have placed all
the sections. */
static void
gld${EMULATION_NAME}_after_allocation ()
{
if (!ppc64_elf_set_toc (output_bfd, &link_info))
einfo ("%X%P: can not set TOC base: %E\n");
}
/* Final emulation specific call. PowerPC64 has 24 byte .plt entries,
and needs different call stubs for any entries that cross a 64k
boundary relative to the TOC. That means we need to wait until all
sections have been laid out to initialise the stubs. */
static void
gld${EMULATION_NAME}_finish ()
{
/* e_entry on PowerPC64 points to the function descriptor for
_start. If _start is missing, default to the first function
descriptor in the .opd section. */
entry_section = ".opd";
/* If generating a relocatable output file, then we don't have any
stubs. */
if (link_info.relocateable)
return;
/* bfd_elf64_discard_info just plays with debugging sections,
ie. doesn't affect any code, so we can delay resizing the
sections. It's likely we'll resize everything in the process of
adjusting stub sizes. */
if (bfd_elf${ELFSIZE}_discard_info (output_bfd, &link_info))
need_laying_out = 1;
while (1)
{
/* Call into the BFD backend to do the real work. */
if (! ppc64_elf_size_stubs (output_bfd, &link_info, &need_laying_out))
{
einfo ("%X%P: can not size stub section: %E\n");
return;
}
if (!need_laying_out)
break;
/* If we have changed the size of the stub section, then we need
to recalculate all the section offsets. After this, we may
need to adjust the stub size again. */
need_laying_out = 0;
lang_reset_memory_regions ();
/* Resize the sections. */
lang_size_sections (stat_ptr->head, abs_output_section,
&stat_ptr->head, 0, (bfd_vma) 0, NULL);
/* Recalculate TOC base. */
ldemul_after_allocation ();
/* Do the assignments again. */
lang_do_assignments (stat_ptr->head, abs_output_section,
(fill_type *) 0, (bfd_vma) 0);
}
if (! ppc64_elf_build_stubs (output_bfd, &link_info))
einfo ("%X%P: can not build stubs: %E\n");
}
EOF
# Put these extra ppc64elf routines in ld_${EMULATION_NAME}_emulation
#
LDEMUL_AFTER_ALLOCATION=gld${EMULATION_NAME}_after_allocation
LDEMUL_FINISH=gld${EMULATION_NAME}_finish
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