1 # This shell script emits a C file. -*- C -*-
2 # It does some substitutions.
4 /* This file is is generated by a shell script. DO NOT EDIT! */
6 /* Handle embedded relocs for m68k.
7 Copyright (C) 2000-2017 Free Software Foundation, Inc.
8 Written by Michael Sokolov <msokolov@ivan.Harhan.ORG>, based on generic.em
9 by Steve Chamberlain <steve@cygnus.com>, embedded relocs code based on
10 mipsecoff.em by Ian Lance Taylor <ian@cygnus.com> (now removed).
12 This file is part of the GNU Binutils.
14 This program is free software; you can redistribute it and/or modify
15 it under the terms of the GNU General Public License as published by
16 the Free Software Foundation; either version 3 of the License, or
17 (at your option) any later version.
19 This program is distributed in the hope that it will be useful,
20 but WITHOUT ANY WARRANTY; without even the implied warranty of
21 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 GNU General Public License for more details.
24 You should have received a copy of the GNU General Public License
25 along with this program; if not, write to the Free Software
26 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
27 MA 02110-1301, USA. */
29 #define TARGET_IS_${EMULATION_NAME}
43 static void check_sections (bfd *, asection *, void *);
46 gld${EMULATION_NAME}_before_parse (void)
48 #ifndef TARGET_ /* I.e., if not generic. */
49 ldfile_set_output_arch ("`echo ${ARCH}`", bfd_arch_unknown);
50 #endif /* not TARGET_ */
53 /* This function is run after all the input files have been opened.
54 We create a .emreloc section for each input file with a non zero
55 .data section. The BFD backend will fill in these sections with
56 magic numbers which can be used to relocate the data section at run
60 gld${EMULATION_NAME}_after_open (void)
64 after_open_default ();
66 if (! command_line.embedded_relocs
67 || bfd_link_relocatable (&link_info))
70 for (abfd = link_info.input_bfds; abfd != NULL; abfd = abfd->link.next)
74 /* As first-order business, make sure that each input BFD is COFF. It
75 better be, as we are directly calling a COFF backend function. */
76 if (bfd_get_flavour (abfd) != bfd_target_coff_flavour)
77 einfo (_("%F%B: all input objects must be COFF "
78 "for --embedded-relocs\n"));
80 datasec = bfd_get_section_by_name (abfd, ".data");
82 /* Note that we assume that the reloc_count field has already
83 been set up. We could call bfd_get_reloc_upper_bound, but
84 that returns the size of a memory buffer rather than a reloc
85 count. We do not want to call bfd_canonicalize_reloc,
86 because although it would always work it would force us to
87 read in the relocs into BFD canonical form, which would waste
88 a significant amount of time and memory. */
89 if (datasec != NULL && datasec->reloc_count > 0)
93 relsec = bfd_make_section_with_flags (abfd, ".emreloc",
99 || ! bfd_set_section_alignment (abfd, relsec, 2)
100 || ! bfd_set_section_size (abfd, relsec,
101 datasec->reloc_count * 12))
102 einfo (_("%F%B: can not create .emreloc section: %E\n"));
105 /* Double check that all other data sections are empty, as is
106 required for embedded PIC code. */
107 bfd_map_over_sections (abfd, check_sections, datasec);
111 /* Check that of the data sections, only the .data section has
112 relocs. This is called via bfd_map_over_sections. */
115 check_sections (bfd *abfd, asection *sec, void *datasec)
117 if ((bfd_get_section_flags (abfd, sec) & SEC_DATA)
119 && sec->reloc_count != 0)
120 einfo (_("%B%X: section %s has relocs; can not use --embedded-relocs\n"),
121 abfd, bfd_get_section_name (abfd, sec));
124 /* This function is called after the section sizes and offsets have
125 been set. If we are generating embedded relocs, it calls a special
126 BFD backend routine to do the work. */
129 gld${EMULATION_NAME}_after_allocation (void)
133 if (! command_line.embedded_relocs
134 || bfd_link_relocatable (&link_info))
137 for (abfd = link_info.input_bfds; abfd != NULL; abfd = abfd->link.next)
139 asection *datasec, *relsec;
142 datasec = bfd_get_section_by_name (abfd, ".data");
144 if (datasec == NULL || datasec->reloc_count == 0)
147 relsec = bfd_get_section_by_name (abfd, ".emreloc");
148 ASSERT (relsec != NULL);
150 if (! bfd_m68k_coff_create_embedded_relocs (abfd, &link_info,
155 einfo (_("%B%X: can not create runtime reloc information: %E\n"),
158 einfo (_("%X%B: can not create runtime reloc information: %s\n"),
165 gld${EMULATION_NAME}_get_script (int *isfile)
168 if test x"$COMPILE_IN" = xyes
170 # Scripts compiled in.
172 # sed commands to quote an ld script as a C string.
173 sc="-f stringify.sed"
179 if (bfd_link_relocatable (&link_info) && config.build_constructors)
182 sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
183 echo ' ; else if (bfd_link_relocatable (&link_info)) return' >> e${EMULATION_NAME}.c
184 sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
185 echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
186 sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
187 echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
188 sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
189 echo ' ; else return' >> e${EMULATION_NAME}.c
190 sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
191 echo '; }' >> e${EMULATION_NAME}.c
194 # Scripts read from the filesystem.
200 if (bfd_link_relocatable (&link_info) && config.build_constructors)
201 return "ldscripts/${EMULATION_NAME}.xu";
202 else if (bfd_link_relocatable (&link_info))
203 return "ldscripts/${EMULATION_NAME}.xr";
204 else if (!config.text_read_only)
205 return "ldscripts/${EMULATION_NAME}.xbn";
206 else if (!config.magic_demand_paged)
207 return "ldscripts/${EMULATION_NAME}.xn";
209 return "ldscripts/${EMULATION_NAME}.x";
217 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
219 gld${EMULATION_NAME}_before_parse,
223 after_check_relocs_default,
224 gld${EMULATION_NAME}_after_open,
225 gld${EMULATION_NAME}_after_allocation,
226 set_output_arch_default,
227 ldemul_default_target,
228 before_allocation_default,
229 gld${EMULATION_NAME}_get_script,
233 NULL, /* create output section statements */
234 NULL, /* open dynamic archive */
235 NULL, /* place orphan */
236 NULL, /* set symbols */
237 NULL, /* parse args */
238 NULL, /* add_options */
239 NULL, /* handle_option */
240 NULL, /* unrecognized file */
241 NULL, /* list options */
242 NULL, /* recognized file */
243 NULL, /* find_potential_libraries */
244 NULL, /* new_vers_pattern */
245 NULL /* extra_map_file_text */