[deliverable/binutils-gdb.git] / ld / emultempl / elf-generic.em

# This shell script emits a C file. -*- C -*-
#   Copyright (C) 2006-2018 Free Software Foundation, Inc.
#
# This file is part of the GNU Binutils.
#
# 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 3 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., 51 Franklin Street - Fifth Floor, Boston,
# MA 02110-1301, USA.
#

# This file is sourced from elf32.em and from ELF targets that use
# generic.em.
#
fragment <<EOF

static void
gld${EMULATION_NAME}_map_segments (bfd_boolean need_layout)
{
  int tries = 10;

  do
    {
      lang_relax_sections (need_layout);
      need_layout = FALSE;

      if (link_info.output_bfd->xvec->flavour == bfd_target_elf_flavour
	  && !bfd_link_relocatable (&link_info))
	{
	  bfd_size_type phdr_size;

	  phdr_size = elf_program_header_size (link_info.output_bfd);
	  /* If we don't have user supplied phdrs, throw away any
	     previous linker generated program headers.  */
	  if (lang_phdr_list == NULL)
	    elf_seg_map (link_info.output_bfd) = NULL;
	  if (!_bfd_elf_map_sections_to_segments (link_info.output_bfd,
						  &link_info))
	    einfo (_("%F%P: map sections to segments failed: %E\n"));

	  if (phdr_size != elf_program_header_size (link_info.output_bfd))
	    {
	      if (tries > 6)
		/* The first few times we allow any change to
		   phdr_size .  */
		need_layout = TRUE;
	      else if (phdr_size
		       < elf_program_header_size (link_info.output_bfd))
		/* After that we only allow the size to grow.  */
		need_layout = TRUE;
	      else
		elf_program_header_size (link_info.output_bfd) = phdr_size;
	    }
	}
    }
  while (need_layout && --tries);

  if (tries == 0)
    einfo (_("%F%P: looping in map_segments"));
}
EOF
Commit	Line	Data
	1	# This shell script emits a C file. -- C --
	2	# Copyright (C) 2006-2018 Free Software Foundation, Inc.
	3	#
	4	# This file is part of the GNU Binutils.
	5	#
	6	# This program is free software; you can redistribute it and/or modify
	7	# it under the terms of the GNU General Public License as published by
	8	# the Free Software Foundation; either version 3 of the License, or
	9	# (at your option) any later version.
	10	#
	11	# This program is distributed in the hope that it will be useful,
	12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	# GNU General Public License for more details.
	15	#
	16	# You should have received a copy of the GNU General Public License
	17	# along with this program; if not, write to the Free Software
	18	# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
	19	# MA 02110-1301, USA.
	20	#
	21
	22	# This file is sourced from elf32.em and from ELF targets that use
	23	# generic.em.
	24	#
	25	fragment <<EOF
	26
	27	static void
	28	gld${EMULATION_NAME}_map_segments (bfd_boolean need_layout)
	29	{
	30	int tries = 10;
	31
	32	do
	33	{
	34	lang_relax_sections (need_layout);
	35	need_layout = FALSE;
	36
	37	if (link_info.output_bfd->xvec->flavour == bfd_target_elf_flavour
	38	&& !bfd_link_relocatable (&link_info))
	39	{
	40	bfd_size_type phdr_size;
	41
	42	phdr_size = elf_program_header_size (link_info.output_bfd);
	43	/* If we don't have user supplied phdrs, throw away any
	44	previous linker generated program headers. */
	45	if (lang_phdr_list == NULL)
	46	elf_seg_map (link_info.output_bfd) = NULL;
	47	if (!_bfd_elf_map_sections_to_segments (link_info.output_bfd,
	48	&link_info))
	49	einfo (_("%F%P: map sections to segments failed: %E\n"));
	50
	51	if (phdr_size != elf_program_header_size (link_info.output_bfd))
	52	{
	53	if (tries > 6)
	54	/* The first few times we allow any change to
	55	phdr_size . */
	56	need_layout = TRUE;
	57	else if (phdr_size
	58	< elf_program_header_size (link_info.output_bfd))
	59	/* After that we only allow the size to grow. */
	60	need_layout = TRUE;
	61	else
	62	elf_program_header_size (link_info.output_bfd) = phdr_size;
	63	}
	64	}
	65	}
	66	while (need_layout && --tries);
	67
	68	if (tries == 0)
	69	einfo (_("%F%P: looping in map_segments"));
	70	}
	71	EOF