mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-03 04:12:10 +08:00
b34976b65a
comparisons of bfd_boolean vars with TRUE/FALSE. Formatting.
125 lines
4.7 KiB
Plaintext
125 lines
4.7 KiB
Plaintext
# This shell script emits a C file. -*- C -*-
|
|
# Copyright 2001, 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 mmo.em, used to define
|
|
# MMIX-specific things common to ELF and MMO.
|
|
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
#include "elf/mmix.h"
|
|
|
|
static void mmix_before_allocation PARAMS ((void));
|
|
static void mmix_after_allocation PARAMS ((void));
|
|
|
|
/* Set up handling of linker-allocated global registers. */
|
|
|
|
static void
|
|
mmix_before_allocation ()
|
|
{
|
|
/* Call the default first. */
|
|
gld${EMULATION_NAME}_before_allocation ();
|
|
|
|
/* There's a needrelax.em which uses this ..._before_allocation-hook and
|
|
just has the statement below as payload. It's more of a hassle to
|
|
use that than to just include these two lines and take the
|
|
maintenance burden to keep them in sync. (Of course we lose the
|
|
maintenance burden of checking that it still does what we need.) */
|
|
|
|
/* Force -relax on if not doing a relocatable link. */
|
|
if (! link_info.relocateable)
|
|
command_line.relax = TRUE;
|
|
|
|
if (!_bfd_mmix_prepare_linker_allocated_gregs (output_bfd, &link_info))
|
|
einfo ("%X%P: Internal problems setting up section %s",
|
|
MMIX_LD_ALLOCATED_REG_CONTENTS_SECTION_NAME);
|
|
}
|
|
|
|
/* We need to set the VMA of the .MMIX.reg_contents section when it has
|
|
been allocated, and produce the final settings for the linker-generated
|
|
GREGs. */
|
|
|
|
static void
|
|
mmix_after_allocation ()
|
|
{
|
|
asection *sec
|
|
= bfd_get_section_by_name (output_bfd, MMIX_REG_CONTENTS_SECTION_NAME);
|
|
bfd_signed_vma regvma;
|
|
|
|
/* If there's no register section, we don't need to do anything. On the
|
|
other hand, if there's a non-standard linker-script without a mapping
|
|
from MMIX_LD_ALLOCATED_REG_CONTENTS_SECTION_NAME when that section is
|
|
present (as in the ld test "NOCROSSREFS 2"), that section (1) will be
|
|
orphaned; not inserted in MMIX_REG_CONTENTS_SECTION_NAME and (2) we
|
|
will not do the necessary preparations for those relocations that
|
|
caused it to be created. We'll SEGV from the latter error. The
|
|
former error in separation will result in a non-working binary, but
|
|
that's expected when you play tricks with linker scripts. The
|
|
"NOCROSSREFS 2" test does not run the output so it does not matter
|
|
there. */
|
|
if (sec == NULL)
|
|
sec
|
|
= bfd_get_section_by_name (output_bfd,
|
|
MMIX_LD_ALLOCATED_REG_CONTENTS_SECTION_NAME);
|
|
if (sec == NULL)
|
|
return;
|
|
|
|
regvma = 256 * 8 - sec->_raw_size - 8;
|
|
|
|
/* If we start on a local register, we have too many global registers.
|
|
We treat this error as nonfatal (meaning processing will continue in
|
|
search for other errors), because it's a link error in the same way
|
|
as an undefined symbol. */
|
|
if (regvma < 32 * 8)
|
|
{
|
|
einfo ("%X%P: Too many global registers: %u, max 223\n",
|
|
(unsigned) sec->_raw_size / 8);
|
|
regvma = 32 * 8;
|
|
}
|
|
|
|
/* Set vma to correspond to first such register number * 8. */
|
|
bfd_set_section_vma (output_bfd, sec, (bfd_vma) regvma);
|
|
|
|
/* ??? Why isn't the section size (_cooked_size) set? Doesn't it get
|
|
set regardless of presence of relocations? */
|
|
if (sec->_cooked_size == 0
|
|
&& ! bfd_set_section_size (output_bfd, sec, sec->_raw_size))
|
|
{
|
|
/* This is a fatal error; make the einfo call not return. */
|
|
einfo ("%F%P: Can't set section %s size to %u\n",
|
|
MMIX_REG_CONTENTS_SECTION_NAME, (unsigned) sec->_raw_size);
|
|
}
|
|
|
|
/* Simplify symbol output for the register section (without contents;
|
|
created for register symbols) by setting the output offset to 0.
|
|
This section is only present when there are register symbols. */
|
|
sec = bfd_get_section_by_name (output_bfd, MMIX_REG_SECTION_NAME);
|
|
if (sec != NULL)
|
|
bfd_set_section_vma (abfd, sec, 0);
|
|
|
|
if (!_bfd_mmix_finalize_linker_allocated_gregs (output_bfd, &link_info))
|
|
{
|
|
/* This is a fatal error; make einfo call not return. */
|
|
einfo ("%F%P: Can't finalize linker-allocated global registers\n");
|
|
}
|
|
}
|
|
EOF
|
|
|
|
LDEMUL_AFTER_ALLOCATION=mmix_after_allocation
|
|
LDEMUL_BEFORE_ALLOCATION=mmix_before_allocation
|