1# This shell script emits a C file. -*- C -*-
2#   Copyright (C) 2006-2016 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#
25fragment <<EOF
26
27static void
28gld${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 (_("%P%F: looping in map_segments"));
70}
71EOF
72