1# This shell script emits a C file. -*- C -*- 2# Copyright (C) 2010-2024 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 generic.em. 23 24fragment <<EOF 25#include "libiberty.h" 26#include "getopt.h" 27 28static void 29gld${EMULATION_NAME}_before_parse (void) 30{ 31 ldfile_set_output_arch ("${ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`); 32 input_flags.dynamic = true; 33 config.has_shared = false; /* Not yet. */ 34 35 /* For ia64, harmless for alpha. */ 36 link_info.emit_hash = false; 37 link_info.spare_dynamic_tags = 0; 38} 39 40/* This is called before the input files are opened. We add the 41 standard library. */ 42 43static void 44gld${EMULATION_NAME}_create_output_section_statements (void) 45{ 46 lang_add_input_file ("imagelib", lang_input_file_is_l_enum, NULL); 47 lang_add_input_file ("starlet", lang_input_file_is_l_enum, NULL); 48 lang_add_input_file ("sys\$public_vectors", lang_input_file_is_l_enum, NULL); 49} 50 51/* Try to open a dynamic archive. This is where we know that VMS 52 shared images (dynamic libraries) have an extension of .exe. */ 53 54static bool 55gld${EMULATION_NAME}_open_dynamic_archive (const char *arch ATTRIBUTE_UNUSED, 56 search_dirs_type *search, 57 lang_input_statement_type *entry) 58{ 59 char *string; 60 61 if (! entry->flags.maybe_archive || entry->flags.full_name_provided) 62 return false; 63 64 string = (char *) xmalloc (strlen (search->name) 65 + strlen (entry->filename) 66 + sizeof "/.exe"); 67 68 sprintf (string, "%s/%s.exe", search->name, entry->filename); 69 70 if (! ldfile_try_open_bfd (string, entry)) 71 { 72 free (string); 73 return false; 74 } 75 76 entry->filename = string; 77 78 return true; 79} 80 81static int 82gld${EMULATION_NAME}_find_potential_libraries 83 (char *name, lang_input_statement_type *entry) 84{ 85 return ldfile_open_file_search (name, entry, "", ".olb"); 86} 87 88/* Place an orphan section. We use this to put random OVR sections. 89 Much borrowed from elf.em. */ 90 91static lang_output_section_statement_type * 92vms_place_orphan (asection *s, 93 const char *secname ATTRIBUTE_UNUSED, 94 int constraint ATTRIBUTE_UNUSED) 95{ 96 static struct orphan_save hold_data = 97 { 98 "\$DATA\$", 99 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA, 100 0, 0, 0, 0 101 }; 102 103 /* We have nothing to say for anything other than a final link or an excluded 104 section. */ 105 if (bfd_link_relocatable (&link_info) 106 || (s->flags & (SEC_EXCLUDE | SEC_LOAD)) != SEC_LOAD) 107 return NULL; 108 109 /* FIXME: we should place sections by VMS program section flags. */ 110 111 /* Only handle data sections. */ 112 if ((s->flags & SEC_DATA) == 0) 113 return NULL; 114 115 if (hold_data.os == NULL) 116 hold_data.os = lang_output_section_find (hold_data.name); 117 118 if (hold_data.os != NULL) 119 { 120 lang_add_section (&hold_data.os->children, s, NULL, NULL, hold_data.os); 121 return hold_data.os; 122 } 123 else 124 return NULL; 125} 126 127/* VMS specific options. */ 128#define OPTION_IDENTIFICATION (300 + 1) 129 130static void 131gld${EMULATION_NAME}_add_options 132 (int ns ATTRIBUTE_UNUSED, 133 char **shortopts ATTRIBUTE_UNUSED, 134 int nl, 135 struct option **longopts, 136 int nrl ATTRIBUTE_UNUSED, 137 struct option **really_longopts ATTRIBUTE_UNUSED) 138{ 139 static const struct option xtra_long[] = 140 { 141 {"identification", required_argument, NULL, OPTION_IDENTIFICATION}, 142 {NULL, no_argument, NULL, 0} 143 }; 144 145 *longopts 146 = xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long)); 147 memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long)); 148} 149 150static void 151gld${EMULATION_NAME}_list_options (FILE *file) 152{ 153 fprintf (file, _(" --identification <string> Set the identification of the output\n")); 154} 155 156static bool 157gld${EMULATION_NAME}_handle_option (int optc) 158{ 159 switch (optc) 160 { 161 default: 162 return false; 163 164 case OPTION_IDENTIFICATION: 165 /* Currently ignored. */ 166 break; 167 } 168 169 return true; 170} 171 172EOF 173 174if test "$OUTPUT_FORMAT" = "elf64-ia64-vms"; then 175 176fragment <<EOF 177#include "elf-bfd.h" 178#include "ldelfgen.h" 179EOF 180 181source_em ${srcdir}/emultempl/elf-generic.em 182 183fragment <<EOF 184 185/* This is called after the sections have been attached to output 186 sections, but before any sizes or addresses have been set. */ 187 188static void 189gld${EMULATION_NAME}_before_allocation (void) 190{ 191 const struct elf_backend_data *bed; 192 193 if (!is_elf_hash_table (link_info.hash)) 194 return; 195 196 bed = get_elf_backend_data (link_info.output_bfd); 197 198 /* The backend must work out the sizes of all the other dynamic 199 sections. */ 200 if (elf_hash_table (&link_info)->dynamic_sections_created 201 && bed->elf_backend_size_dynamic_sections 202 && ! (*bed->elf_backend_size_dynamic_sections) (link_info.output_bfd, 203 &link_info)) 204 einfo (_("%F%P: failed to set dynamic section sizes: %E\n")); 205 206 before_allocation_default (); 207} 208 209static void 210gld${EMULATION_NAME}_after_allocation (void) 211{ 212 int need_layout = bfd_elf_discard_info (link_info.output_bfd, &link_info); 213 214 if (need_layout < 0) 215 einfo (_("%X%P: .eh_frame/.stab edit: %E\n")); 216 else 217 ldelf_map_segments (need_layout); 218} 219 220static void 221gld${EMULATION_NAME}_after_parse (void) 222{ 223 link_info.relax_pass = 2; 224 after_parse_default (); 225} 226EOF 227 228LDEMUL_BEFORE_ALLOCATION=gld"$EMULATION_NAME"_before_allocation 229LDEMUL_AFTER_ALLOCATION=gld"$EMULATION_NAME"_after_allocation 230 231LDEMUL_AFTER_PARSE=gld${EMULATION_NAME}_after_parse 232source_em ${srcdir}/emultempl/needrelax.em 233fi 234 235LDEMUL_PLACE_ORPHAN=vms_place_orphan 236LDEMUL_BEFORE_PARSE=gld"$EMULATION_NAME"_before_parse 237LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS=gld"$EMULATION_NAME"_create_output_section_statements 238LDEMUL_FIND_POTENTIAL_LIBRARIES=gld"$EMULATION_NAME"_find_potential_libraries 239LDEMUL_OPEN_DYNAMIC_ARCHIVE=gld"$EMULATION_NAME"_open_dynamic_archive 240LDEMUL_ADD_OPTIONS=gld"$EMULATION_NAME"_add_options 241LDEMUL_HANDLE_OPTION=gld"$EMULATION_NAME"_handle_option 242LDEMUL_LIST_OPTIONS=gld"$EMULATION_NAME"_list_options 243