| 1 | # This shell script emits a C file. -*- C -*- |
| 2 | # Copyright 2006 Free Software Foundation, Inc. |
| 3 | # |
| 4 | # This file is part of GLD, the Gnu Linker. |
| 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 2 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 Foundation, Inc., |
| 18 | # 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. |
| 19 | # |
| 20 | |
| 21 | # This file is sourced from elf32.em and from ELF targets that use |
| 22 | # generic.em. |
| 23 | # |
| 24 | cat >>e${EMULATION_NAME}.c <<EOF |
| 25 | |
| 26 | static void |
| 27 | gld${EMULATION_NAME}_map_segments (bfd_boolean need_layout) |
| 28 | { |
| 29 | int tries = 10; |
| 30 | |
| 31 | do |
| 32 | { |
| 33 | if (need_layout) |
| 34 | { |
| 35 | lang_reset_memory_regions (); |
| 36 | |
| 37 | /* Resize the sections. */ |
| 38 | lang_size_sections (NULL, TRUE); |
| 39 | |
| 40 | /* Redo special stuff. */ |
| 41 | ldemul_after_allocation (); |
| 42 | |
| 43 | /* Do the assignments again. */ |
| 44 | lang_do_assignments (); |
| 45 | |
| 46 | need_layout = FALSE; |
| 47 | } |
| 48 | |
| 49 | if (output_bfd->xvec->flavour == bfd_target_elf_flavour |
| 50 | && !link_info.relocatable) |
| 51 | { |
| 52 | bfd_size_type phdr_size; |
| 53 | |
| 54 | phdr_size = elf_tdata (output_bfd)->program_header_size; |
| 55 | /* If we don't have user supplied phdrs, throw away any |
| 56 | previous linker generated program headers. */ |
| 57 | if (lang_phdr_list == NULL) |
| 58 | elf_tdata (output_bfd)->segment_map = NULL; |
| 59 | if (!_bfd_elf_map_sections_to_segments (output_bfd, &link_info)) |
| 60 | einfo ("%F%P: map sections to segments failed: %E\n"); |
| 61 | |
| 62 | if (phdr_size != elf_tdata (output_bfd)->program_header_size) |
| 63 | { |
| 64 | if (tries > 6) |
| 65 | /* The first few times we allow any change to |
| 66 | phdr_size . */ |
| 67 | need_layout = TRUE; |
| 68 | else if (phdr_size < elf_tdata (output_bfd)->program_header_size) |
| 69 | /* After that we only allow the size to grow. */ |
| 70 | need_layout = TRUE; |
| 71 | else |
| 72 | elf_tdata (output_bfd)->program_header_size = phdr_size; |
| 73 | } |
| 74 | } |
| 75 | } |
| 76 | while (need_layout && --tries); |
| 77 | |
| 78 | if (tries == 0) |
| 79 | einfo (_("%P%F: looping in map_segments")); |
| 80 | } |
| 81 | EOF |