| 1 | # This shell script emits a C file. -*- C -*- |
| 2 | # It does some substitutions. |
| 3 | if [ -z "$MACHINE" ]; then |
| 4 | OUTPUT_ARCH=${ARCH} |
| 5 | else |
| 6 | OUTPUT_ARCH=${ARCH}:${MACHINE} |
| 7 | fi |
| 8 | |
| 9 | case ${target} in |
| 10 | *-*-cygwin*) |
| 11 | move_default_addr_high=1 |
| 12 | ;; |
| 13 | *) |
| 14 | move_default_addr_high=0; |
| 15 | ;; |
| 16 | esac |
| 17 | |
| 18 | rm -f e${EMULATION_NAME}.c |
| 19 | (echo;echo;echo;echo;echo)>e${EMULATION_NAME}.c # there, now line numbers match ;-) |
| 20 | fragment <<EOF |
| 21 | /* Copyright (C) 2006-2020 Free Software Foundation, Inc. |
| 22 | Written by Kai Tietz, OneVision Software GmbH&CoKg. |
| 23 | |
| 24 | This file is part of the GNU Binutils. |
| 25 | |
| 26 | This program is free software; you can redistribute it and/or modify |
| 27 | it under the terms of the GNU General Public License as published by |
| 28 | the Free Software Foundation; either version 3 of the License, or |
| 29 | (at your option) any later version. |
| 30 | |
| 31 | This program is distributed in the hope that it will be useful, |
| 32 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 33 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 34 | GNU General Public License for more details. |
| 35 | |
| 36 | You should have received a copy of the GNU General Public License |
| 37 | along with this program; if not, write to the Free Software |
| 38 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
| 39 | MA 02110-1301, USA. */ |
| 40 | |
| 41 | |
| 42 | /* For WINDOWS_XP64 and higher */ |
| 43 | /* Based on pe.em, but modified for 64 bit support. */ |
| 44 | |
| 45 | #define TARGET_IS_${EMULATION_NAME} |
| 46 | |
| 47 | #define COFF_IMAGE_WITH_PE |
| 48 | #define COFF_WITH_PE |
| 49 | #define COFF_WITH_pex64 |
| 50 | |
| 51 | #include "sysdep.h" |
| 52 | #include "bfd.h" |
| 53 | #include "bfdlink.h" |
| 54 | #include "ctf-api.h" |
| 55 | #include "getopt.h" |
| 56 | #include "libiberty.h" |
| 57 | #include "filenames.h" |
| 58 | #include "ld.h" |
| 59 | #include "ldmain.h" |
| 60 | #include "ldexp.h" |
| 61 | #include "ldlang.h" |
| 62 | #include "ldfile.h" |
| 63 | #include "ldemul.h" |
| 64 | #include <ldgram.h> |
| 65 | #include "ldlex.h" |
| 66 | #include "ldmisc.h" |
| 67 | #include "ldctor.h" |
| 68 | #include "ldbuildid.h" |
| 69 | #include "coff/internal.h" |
| 70 | |
| 71 | /* FIXME: See bfd/peXXigen.c for why we include an architecture specific |
| 72 | header in generic PE code. */ |
| 73 | #include "coff/x86_64.h" |
| 74 | #include "coff/pe.h" |
| 75 | |
| 76 | /* FIXME: These are BFD internal header files, and we should not be |
| 77 | using it here. */ |
| 78 | #include "../bfd/libcoff.h" |
| 79 | #include "../bfd/libpei.h" |
| 80 | |
| 81 | #undef AOUTSZ |
| 82 | #define AOUTSZ PEPAOUTSZ |
| 83 | #define PEAOUTHDR PEPAOUTHDR |
| 84 | |
| 85 | #include "deffile.h" |
| 86 | #include "pep-dll.h" |
| 87 | #include "safe-ctype.h" |
| 88 | |
| 89 | /* Permit the emulation parameters to override the default section |
| 90 | alignment by setting OVERRIDE_SECTION_ALIGNMENT. FIXME: This makes |
| 91 | it seem that include/coff/internal.h should not define |
| 92 | PE_DEF_SECTION_ALIGNMENT. */ |
| 93 | #if PE_DEF_SECTION_ALIGNMENT != ${OVERRIDE_SECTION_ALIGNMENT:-PE_DEF_SECTION_ALIGNMENT} |
| 94 | #undef PE_DEF_SECTION_ALIGNMENT |
| 95 | #define PE_DEF_SECTION_ALIGNMENT ${OVERRIDE_SECTION_ALIGNMENT} |
| 96 | #endif |
| 97 | |
| 98 | #ifdef TARGET_IS_i386pep |
| 99 | #define DLL_SUPPORT |
| 100 | #endif |
| 101 | |
| 102 | #if defined(TARGET_IS_i386pep) || ! defined(DLL_SUPPORT) |
| 103 | #define PE_DEF_SUBSYSTEM 3 |
| 104 | #undef NT_EXE_IMAGE_BASE |
| 105 | #define NT_EXE_IMAGE_BASE \ |
| 106 | ((bfd_vma) (${move_default_addr_high} ? 0x100400000LL \ |
| 107 | : 0x400000LL)) |
| 108 | #undef NT_DLL_IMAGE_BASE |
| 109 | #define NT_DLL_IMAGE_BASE \ |
| 110 | ((bfd_vma) (${move_default_addr_high} ? 0x400000000LL \ |
| 111 | : 0x10000000LL)) |
| 112 | #undef NT_DLL_AUTO_IMAGE_BASE |
| 113 | #define NT_DLL_AUTO_IMAGE_BASE \ |
| 114 | ((bfd_vma) (${move_default_addr_high} ? 0x400000000LL \ |
| 115 | : 0x61300000LL)) |
| 116 | #undef NT_DLL_AUTO_IMAGE_MASK |
| 117 | #define NT_DLL_AUTO_IMAGE_MASK \ |
| 118 | ((bfd_vma) (${move_default_addr_high} ? 0x1ffff0000LL \ |
| 119 | : 0x0ffc0000LL)) |
| 120 | #else |
| 121 | #undef NT_EXE_IMAGE_BASE |
| 122 | #define NT_EXE_IMAGE_BASE \ |
| 123 | ((bfd_vma) (${move_default_addr_high} ? 0x100010000LL \ |
| 124 | : 0x10000LL)) |
| 125 | #undef NT_DLL_IMAGE_BASE |
| 126 | #define NT_DLL_IMAGE_BASE \ |
| 127 | ((bfd_vma) (${move_default_addr_high} ? 0x110000000LL \ |
| 128 | : 0x10000000LL)) |
| 129 | #undef NT_DLL_AUTO_IMAGE_BASE |
| 130 | #define NT_DLL_AUTO_IMAGE_BASE \ |
| 131 | ((bfd_vma) (${move_default_addr_high} ? 0x120000000LL \ |
| 132 | : 0x61300000LL)) |
| 133 | #undef NT_DLL_AUTO_IMAGE_MASK |
| 134 | #define NT_DLL_AUTO_IMAGE_MASK \ |
| 135 | ((bfd_vma) (${move_default_addr_high} ? 0x0ffff0000LL \ |
| 136 | : 0x0ffc0000LL)) |
| 137 | #undef PE_DEF_SECTION_ALIGNMENT |
| 138 | #define PE_DEF_SUBSYSTEM 2 |
| 139 | #undef PE_DEF_FILE_ALIGNMENT |
| 140 | #define PE_DEF_FILE_ALIGNMENT 0x00000200 |
| 141 | #define PE_DEF_SECTION_ALIGNMENT 0x00000400 |
| 142 | #endif |
| 143 | |
| 144 | static struct internal_extra_pe_aouthdr pep; |
| 145 | static int dll; |
| 146 | static int pep_subsystem = ${SUBSYSTEM}; |
| 147 | static flagword real_flags = IMAGE_FILE_LARGE_ADDRESS_AWARE; |
| 148 | static int support_old_code = 0; |
| 149 | static lang_assignment_statement_type *image_base_statement = 0; |
| 150 | static unsigned short pe_dll_characteristics = 0; |
| 151 | static bfd_boolean insert_timestamp = TRUE; |
| 152 | static const char *emit_build_id; |
| 153 | |
| 154 | #ifdef DLL_SUPPORT |
| 155 | static int pep_enable_stdcall_fixup = 1; /* 0=disable 1=enable (default). */ |
| 156 | static char * pep_out_def_filename = NULL; |
| 157 | static int pep_enable_auto_image_base = 0; |
| 158 | static char * pep_dll_search_prefix = NULL; |
| 159 | #endif |
| 160 | |
| 161 | extern const char *output_filename; |
| 162 | |
| 163 | static int is_underscoring (void) |
| 164 | { |
| 165 | int u = 0; |
| 166 | if (pep_leading_underscore != -1) |
| 167 | return pep_leading_underscore; |
| 168 | if (!bfd_get_target_info ("${OUTPUT_FORMAT}", NULL, NULL, &u, NULL)) |
| 169 | bfd_get_target_info ("${RELOCATEABLE_OUTPUT_FORMAT}", NULL, NULL, &u, NULL); |
| 170 | |
| 171 | if (u == -1) |
| 172 | abort (); |
| 173 | pep_leading_underscore = (u != 0 ? 1 : 0); |
| 174 | return pep_leading_underscore; |
| 175 | } |
| 176 | |
| 177 | |
| 178 | static void |
| 179 | gld_${EMULATION_NAME}_before_parse (void) |
| 180 | { |
| 181 | is_underscoring (); |
| 182 | ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`); |
| 183 | output_filename = "${EXECUTABLE_NAME:-a.exe}"; |
| 184 | #ifdef DLL_SUPPORT |
| 185 | input_flags.dynamic = TRUE; |
| 186 | config.has_shared = 1; |
| 187 | link_info.pei386_auto_import = 1; |
| 188 | link_info.pei386_runtime_pseudo_reloc = 2; /* Use by default version 2. */ |
| 189 | #endif |
| 190 | } |
| 191 | \f |
| 192 | /* PE format extra command line options. */ |
| 193 | |
| 194 | /* Used for setting flags in the PE header. */ |
| 195 | enum options |
| 196 | { |
| 197 | OPTION_BASE_FILE = 300 + 1, |
| 198 | OPTION_DLL, |
| 199 | OPTION_FILE_ALIGNMENT, |
| 200 | OPTION_IMAGE_BASE, |
| 201 | OPTION_MAJOR_IMAGE_VERSION, |
| 202 | OPTION_MAJOR_OS_VERSION, |
| 203 | OPTION_MAJOR_SUBSYSTEM_VERSION, |
| 204 | OPTION_MINOR_IMAGE_VERSION, |
| 205 | OPTION_MINOR_OS_VERSION, |
| 206 | OPTION_MINOR_SUBSYSTEM_VERSION, |
| 207 | OPTION_SECTION_ALIGNMENT, |
| 208 | OPTION_STACK, |
| 209 | OPTION_SUBSYSTEM, |
| 210 | OPTION_HEAP, |
| 211 | OPTION_SUPPORT_OLD_CODE, |
| 212 | OPTION_OUT_DEF, |
| 213 | OPTION_EXPORT_ALL, |
| 214 | OPTION_EXCLUDE_SYMBOLS, |
| 215 | OPTION_EXCLUDE_ALL_SYMBOLS, |
| 216 | OPTION_KILL_ATS, |
| 217 | OPTION_STDCALL_ALIASES, |
| 218 | OPTION_ENABLE_STDCALL_FIXUP, |
| 219 | OPTION_DISABLE_STDCALL_FIXUP, |
| 220 | OPTION_WARN_DUPLICATE_EXPORTS, |
| 221 | OPTION_IMP_COMPAT, |
| 222 | OPTION_ENABLE_AUTO_IMAGE_BASE, |
| 223 | OPTION_DISABLE_AUTO_IMAGE_BASE, |
| 224 | OPTION_DLL_SEARCH_PREFIX, |
| 225 | OPTION_NO_DEFAULT_EXCLUDES, |
| 226 | OPTION_DLL_ENABLE_AUTO_IMPORT, |
| 227 | OPTION_DLL_DISABLE_AUTO_IMPORT, |
| 228 | OPTION_ENABLE_EXTRA_PE_DEBUG, |
| 229 | OPTION_EXCLUDE_LIBS, |
| 230 | OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC, |
| 231 | OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC, |
| 232 | OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2, |
| 233 | OPTION_EXCLUDE_MODULES_FOR_IMPLIB, |
| 234 | OPTION_USE_NUL_PREFIXED_IMPORT_TABLES, |
| 235 | OPTION_NO_LEADING_UNDERSCORE, |
| 236 | OPTION_LEADING_UNDERSCORE, |
| 237 | OPTION_ENABLE_LONG_SECTION_NAMES, |
| 238 | OPTION_DISABLE_LONG_SECTION_NAMES, |
| 239 | OPTION_HIGH_ENTROPY_VA, |
| 240 | OPTION_DYNAMIC_BASE, |
| 241 | OPTION_FORCE_INTEGRITY, |
| 242 | OPTION_NX_COMPAT, |
| 243 | OPTION_NO_ISOLATION, |
| 244 | OPTION_NO_SEH, |
| 245 | OPTION_NO_BIND, |
| 246 | OPTION_WDM_DRIVER, |
| 247 | OPTION_INSERT_TIMESTAMP, |
| 248 | OPTION_NO_INSERT_TIMESTAMP, |
| 249 | OPTION_TERMINAL_SERVER_AWARE, |
| 250 | OPTION_BUILD_ID, |
| 251 | OPTION_ENABLE_RELOC_SECTION |
| 252 | }; |
| 253 | |
| 254 | static void |
| 255 | gld${EMULATION_NAME}_add_options |
| 256 | (int ns ATTRIBUTE_UNUSED, |
| 257 | char **shortopts ATTRIBUTE_UNUSED, |
| 258 | int nl, |
| 259 | struct option **longopts, |
| 260 | int nrl ATTRIBUTE_UNUSED, |
| 261 | struct option **really_longopts ATTRIBUTE_UNUSED) |
| 262 | { |
| 263 | static const struct option xtra_long[] = |
| 264 | { |
| 265 | /* PE options */ |
| 266 | {"base-file", required_argument, NULL, OPTION_BASE_FILE}, |
| 267 | {"dll", no_argument, NULL, OPTION_DLL}, |
| 268 | {"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT}, |
| 269 | {"heap", required_argument, NULL, OPTION_HEAP}, |
| 270 | {"image-base", required_argument, NULL, OPTION_IMAGE_BASE}, |
| 271 | {"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION}, |
| 272 | {"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION}, |
| 273 | {"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION}, |
| 274 | {"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION}, |
| 275 | {"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION}, |
| 276 | {"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION}, |
| 277 | {"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT}, |
| 278 | {"stack", required_argument, NULL, OPTION_STACK}, |
| 279 | {"subsystem", required_argument, NULL, OPTION_SUBSYSTEM}, |
| 280 | {"support-old-code", no_argument, NULL, OPTION_SUPPORT_OLD_CODE}, |
| 281 | {"use-nul-prefixed-import-tables", no_argument, NULL, |
| 282 | OPTION_USE_NUL_PREFIXED_IMPORT_TABLES}, |
| 283 | {"no-leading-underscore", no_argument, NULL, OPTION_NO_LEADING_UNDERSCORE}, |
| 284 | {"leading-underscore", no_argument, NULL, OPTION_LEADING_UNDERSCORE}, |
| 285 | #ifdef DLL_SUPPORT |
| 286 | /* getopt allows abbreviations, so we do this to stop it |
| 287 | from treating -o as an abbreviation for this option. */ |
| 288 | {"output-def", required_argument, NULL, OPTION_OUT_DEF}, |
| 289 | {"output-def", required_argument, NULL, OPTION_OUT_DEF}, |
| 290 | {"export-all-symbols", no_argument, NULL, OPTION_EXPORT_ALL}, |
| 291 | {"exclude-symbols", required_argument, NULL, OPTION_EXCLUDE_SYMBOLS}, |
| 292 | {"exclude-all-symbols", no_argument, NULL, OPTION_EXCLUDE_ALL_SYMBOLS}, |
| 293 | {"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS}, |
| 294 | {"exclude-modules-for-implib", required_argument, NULL, OPTION_EXCLUDE_MODULES_FOR_IMPLIB}, |
| 295 | {"kill-at", no_argument, NULL, OPTION_KILL_ATS}, |
| 296 | {"add-stdcall-alias", no_argument, NULL, OPTION_STDCALL_ALIASES}, |
| 297 | {"enable-stdcall-fixup", no_argument, NULL, OPTION_ENABLE_STDCALL_FIXUP}, |
| 298 | {"disable-stdcall-fixup", no_argument, NULL, OPTION_DISABLE_STDCALL_FIXUP}, |
| 299 | {"warn-duplicate-exports", no_argument, NULL, OPTION_WARN_DUPLICATE_EXPORTS}, |
| 300 | /* getopt() allows abbreviations, so we do this to stop it from |
| 301 | treating -c as an abbreviation for these --compat-implib. */ |
| 302 | {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT}, |
| 303 | {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT}, |
| 304 | {"enable-auto-image-base", no_argument, NULL, OPTION_ENABLE_AUTO_IMAGE_BASE}, |
| 305 | {"disable-auto-image-base", no_argument, NULL, OPTION_DISABLE_AUTO_IMAGE_BASE}, |
| 306 | {"dll-search-prefix", required_argument, NULL, OPTION_DLL_SEARCH_PREFIX}, |
| 307 | {"no-default-excludes", no_argument, NULL, OPTION_NO_DEFAULT_EXCLUDES}, |
| 308 | {"enable-auto-import", no_argument, NULL, OPTION_DLL_ENABLE_AUTO_IMPORT}, |
| 309 | {"disable-auto-import", no_argument, NULL, OPTION_DLL_DISABLE_AUTO_IMPORT}, |
| 310 | {"enable-extra-pep-debug", no_argument, NULL, OPTION_ENABLE_EXTRA_PE_DEBUG}, |
| 311 | {"enable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC}, |
| 312 | {"disable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC}, |
| 313 | {"enable-runtime-pseudo-reloc-v2", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2}, |
| 314 | #endif |
| 315 | {"enable-long-section-names", no_argument, NULL, OPTION_ENABLE_LONG_SECTION_NAMES}, |
| 316 | {"disable-long-section-names", no_argument, NULL, OPTION_DISABLE_LONG_SECTION_NAMES}, |
| 317 | {"high-entropy-va", no_argument, NULL, OPTION_HIGH_ENTROPY_VA}, |
| 318 | {"dynamicbase",no_argument, NULL, OPTION_DYNAMIC_BASE}, |
| 319 | {"forceinteg", no_argument, NULL, OPTION_FORCE_INTEGRITY}, |
| 320 | {"nxcompat", no_argument, NULL, OPTION_NX_COMPAT}, |
| 321 | {"no-isolation", no_argument, NULL, OPTION_NO_ISOLATION}, |
| 322 | {"no-seh", no_argument, NULL, OPTION_NO_SEH}, |
| 323 | {"no-bind", no_argument, NULL, OPTION_NO_BIND}, |
| 324 | {"wdmdriver", no_argument, NULL, OPTION_WDM_DRIVER}, |
| 325 | {"tsaware", no_argument, NULL, OPTION_TERMINAL_SERVER_AWARE}, |
| 326 | {"insert-timestamp", no_argument, NULL, OPTION_INSERT_TIMESTAMP}, |
| 327 | {"no-insert-timestamp", no_argument, NULL, OPTION_NO_INSERT_TIMESTAMP}, |
| 328 | {"build-id", optional_argument, NULL, OPTION_BUILD_ID}, |
| 329 | {"enable-reloc-section", no_argument, NULL, OPTION_ENABLE_RELOC_SECTION}, |
| 330 | {NULL, no_argument, NULL, 0} |
| 331 | }; |
| 332 | |
| 333 | *longopts |
| 334 | = xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long)); |
| 335 | memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long)); |
| 336 | } |
| 337 | |
| 338 | /* PE/WIN32; added routines to get the subsystem type, heap and/or stack |
| 339 | parameters which may be input from the command line. */ |
| 340 | |
| 341 | typedef struct |
| 342 | { |
| 343 | void *ptr; |
| 344 | int size; |
| 345 | bfd_vma value; |
| 346 | char *symbol; |
| 347 | int inited; |
| 348 | /* FALSE for an assembly level symbol and TRUE for a C visible symbol. |
| 349 | C visible symbols can be prefixed by underscore dependent on target's |
| 350 | settings. */ |
| 351 | bfd_boolean is_c_symbol; |
| 352 | } definfo; |
| 353 | |
| 354 | #define GET_INIT_SYMBOL_NAME(IDX) \ |
| 355 | (init[(IDX)].symbol \ |
| 356 | + ((!init[(IDX)].is_c_symbol || is_underscoring () == 1) ? 0 : 1)) |
| 357 | |
| 358 | /* Decorates the C visible symbol by underscore, if target requires. */ |
| 359 | #define U(CSTR) \ |
| 360 | ((is_underscoring () == 0) ? CSTR : "_" CSTR) |
| 361 | |
| 362 | #define D(field,symbol,def,usc) {&pep.field, sizeof (pep.field), def, symbol, 0, usc} |
| 363 | |
| 364 | static definfo init[] = |
| 365 | { |
| 366 | /* imagebase must be first */ |
| 367 | #define IMAGEBASEOFF 0 |
| 368 | D(ImageBase,"__image_base__", NT_EXE_IMAGE_BASE, FALSE), |
| 369 | #define DLLOFF 1 |
| 370 | {&dll, sizeof(dll), 0, "__dll__", 0, FALSE}, |
| 371 | #define MSIMAGEBASEOFF 2 |
| 372 | D(ImageBase, "___ImageBase", NT_EXE_IMAGE_BASE, TRUE), |
| 373 | D(SectionAlignment,"__section_alignment__", PE_DEF_SECTION_ALIGNMENT, FALSE), |
| 374 | D(FileAlignment,"__file_alignment__", PE_DEF_FILE_ALIGNMENT, FALSE), |
| 375 | D(MajorOperatingSystemVersion,"__major_os_version__", 4, FALSE), |
| 376 | D(MinorOperatingSystemVersion,"__minor_os_version__", 0, FALSE), |
| 377 | D(MajorImageVersion,"__major_image_version__", 0, FALSE), |
| 378 | D(MinorImageVersion,"__minor_image_version__", 0, FALSE), |
| 379 | D(MajorSubsystemVersion,"__major_subsystem_version__", 5, FALSE), |
| 380 | D(MinorSubsystemVersion,"__minor_subsystem_version__", 2, FALSE), |
| 381 | D(Subsystem,"__subsystem__", ${SUBSYSTEM}, FALSE), |
| 382 | D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x200000, FALSE), |
| 383 | D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000, FALSE), |
| 384 | D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000, FALSE), |
| 385 | D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000, FALSE), |
| 386 | D(LoaderFlags,"__loader_flags__", 0x0, FALSE), |
| 387 | D(DllCharacteristics, "__dll_characteristics__", 0x0, FALSE), |
| 388 | { NULL, 0, 0, NULL, 0, FALSE} |
| 389 | }; |
| 390 | |
| 391 | |
| 392 | static void |
| 393 | gld_${EMULATION_NAME}_list_options (FILE *file) |
| 394 | { |
| 395 | fprintf (file, _(" --base_file <basefile> Generate a base file for relocatable DLLs\n")); |
| 396 | fprintf (file, _(" --dll Set image base to the default for DLLs\n")); |
| 397 | fprintf (file, _(" --file-alignment <size> Set file alignment\n")); |
| 398 | fprintf (file, _(" --heap <size> Set initial size of the heap\n")); |
| 399 | fprintf (file, _(" --image-base <address> Set start address of the executable\n")); |
| 400 | fprintf (file, _(" --major-image-version <number> Set version number of the executable\n")); |
| 401 | fprintf (file, _(" --major-os-version <number> Set minimum required OS version\n")); |
| 402 | fprintf (file, _(" --major-subsystem-version <number> Set minimum required OS subsystem version\n")); |
| 403 | fprintf (file, _(" --minor-image-version <number> Set revision number of the executable\n")); |
| 404 | fprintf (file, _(" --minor-os-version <number> Set minimum required OS revision\n")); |
| 405 | fprintf (file, _(" --minor-subsystem-version <number> Set minimum required OS subsystem revision\n")); |
| 406 | fprintf (file, _(" --section-alignment <size> Set section alignment\n")); |
| 407 | fprintf (file, _(" --stack <size> Set size of the initial stack\n")); |
| 408 | fprintf (file, _(" --subsystem <name>[:<version>] Set required OS subsystem [& version]\n")); |
| 409 | fprintf (file, _(" --support-old-code Support interworking with old code\n")); |
| 410 | fprintf (file, _(" --[no-]leading-underscore Set explicit symbol underscore prefix mode\n")); |
| 411 | fprintf (file, _(" --[no-]insert-timestamp Use a real timestamp rather than zero (default)\n")); |
| 412 | fprintf (file, _(" This makes binaries non-deterministic\n")); |
| 413 | #ifdef DLL_SUPPORT |
| 414 | fprintf (file, _(" --add-stdcall-alias Export symbols with and without @nn\n")); |
| 415 | fprintf (file, _(" --disable-stdcall-fixup Don't link _sym to _sym@nn\n")); |
| 416 | fprintf (file, _(" --enable-stdcall-fixup Link _sym to _sym@nn without warnings\n")); |
| 417 | fprintf (file, _(" --exclude-symbols sym,sym,... Exclude symbols from automatic export\n")); |
| 418 | fprintf (file, _(" --exclude-all-symbols Exclude all symbols from automatic export\n")); |
| 419 | fprintf (file, _(" --exclude-libs lib,lib,... Exclude libraries from automatic export\n")); |
| 420 | fprintf (file, _(" --exclude-modules-for-implib mod,mod,...\n")); |
| 421 | fprintf (file, _(" Exclude objects, archive members from auto\n")); |
| 422 | fprintf (file, _(" export, place into import library instead\n")); |
| 423 | fprintf (file, _(" --export-all-symbols Automatically export all globals to DLL\n")); |
| 424 | fprintf (file, _(" --kill-at Remove @nn from exported symbols\n")); |
| 425 | fprintf (file, _(" --output-def <file> Generate a .DEF file for the built DLL\n")); |
| 426 | fprintf (file, _(" --warn-duplicate-exports Warn about duplicate exports\n")); |
| 427 | fprintf (file, _(" --compat-implib Create backward compatible import libs;\n\ |
| 428 | create __imp_<SYMBOL> as well\n")); |
| 429 | fprintf (file, _(" --enable-auto-image-base Automatically choose image base for DLLs\n\ |
| 430 | unless user specifies one\n")); |
| 431 | fprintf (file, _(" --disable-auto-image-base Do not auto-choose image base (default)\n")); |
| 432 | fprintf (file, _(" --dll-search-prefix=<string> When linking dynamically to a dll without\n\ |
| 433 | an importlib, use <string><basename>.dll\n\ |
| 434 | in preference to lib<basename>.dll \n")); |
| 435 | fprintf (file, _(" --enable-auto-import Do sophisticated linking of _sym to\n\ |
| 436 | __imp_sym for DATA references\n")); |
| 437 | fprintf (file, _(" --disable-auto-import Do not auto-import DATA items from DLLs\n")); |
| 438 | fprintf (file, _(" --enable-runtime-pseudo-reloc Work around auto-import limitations by\n\ |
| 439 | adding pseudo-relocations resolved at\n\ |
| 440 | runtime\n")); |
| 441 | fprintf (file, _(" --disable-runtime-pseudo-reloc Do not add runtime pseudo-relocations for\n\ |
| 442 | auto-imported DATA\n")); |
| 443 | fprintf (file, _(" --enable-extra-pep-debug Enable verbose debug output when building\n\ |
| 444 | or linking to DLLs (esp. auto-import)\n")); |
| 445 | fprintf (file, _(" --enable-long-section-names Use long COFF section names even in\n\ |
| 446 | executable image files\n")); |
| 447 | fprintf (file, _(" --disable-long-section-names Never use long COFF section names, even\n\ |
| 448 | in object files\n")); |
| 449 | fprintf (file, _(" --high-entropy-va Image is compatible with 64-bit address space\n\ |
| 450 | layout randomization (ASLR)\n")); |
| 451 | fprintf (file, _(" --dynamicbase Image base address may be relocated using\n\ |
| 452 | address space layout randomization (ASLR)\n")); |
| 453 | fprintf (file, _(" --enable-reloc-section Create the base relocation table\n")); |
| 454 | fprintf (file, _(" --forceinteg Code integrity checks are enforced\n")); |
| 455 | fprintf (file, _(" --nxcompat Image is compatible with data execution prevention\n")); |
| 456 | fprintf (file, _(" --no-isolation Image understands isolation but do not isolate the image\n")); |
| 457 | fprintf (file, _(" --no-seh Image does not use SEH; no SE handler may\n\ |
| 458 | be called in this image\n")); |
| 459 | fprintf (file, _(" --no-bind Do not bind this image\n")); |
| 460 | fprintf (file, _(" --wdmdriver Driver uses the WDM model\n")); |
| 461 | fprintf (file, _(" --tsaware Image is Terminal Server aware\n")); |
| 462 | fprintf (file, _(" --build-id[=STYLE] Generate build ID\n")); |
| 463 | #endif |
| 464 | } |
| 465 | |
| 466 | |
| 467 | static void |
| 468 | set_pep_name (char *name, bfd_vma val) |
| 469 | { |
| 470 | int i; |
| 471 | is_underscoring (); |
| 472 | /* Find the name and set it. */ |
| 473 | for (i = 0; init[i].ptr; i++) |
| 474 | { |
| 475 | if (strcmp (name, GET_INIT_SYMBOL_NAME (i)) == 0) |
| 476 | { |
| 477 | init[i].value = val; |
| 478 | init[i].inited = 1; |
| 479 | if (strcmp (name,"__image_base__") == 0) |
| 480 | set_pep_name (U ("__ImageBase"), val); |
| 481 | return; |
| 482 | } |
| 483 | } |
| 484 | abort (); |
| 485 | } |
| 486 | |
| 487 | static void |
| 488 | set_entry_point (void) |
| 489 | { |
| 490 | const char *entry; |
| 491 | const char *initial_symbol_char; |
| 492 | int i; |
| 493 | |
| 494 | static const struct |
| 495 | { |
| 496 | const int value; |
| 497 | const char *entry; |
| 498 | } |
| 499 | v[] = |
| 500 | { |
| 501 | { 1, "NtProcessStartup" }, |
| 502 | { 2, "WinMainCRTStartup" }, |
| 503 | { 3, "mainCRTStartup" }, |
| 504 | { 7, "__PosixProcessStartup" }, |
| 505 | { 9, "WinMainCRTStartup" }, |
| 506 | {14, "mainCRTStartup" }, |
| 507 | { 0, NULL } |
| 508 | }; |
| 509 | |
| 510 | /* Entry point name for arbitrary subsystem numbers. */ |
| 511 | static const char default_entry[] = "mainCRTStartup"; |
| 512 | |
| 513 | if (bfd_link_pic (&link_info) || dll) |
| 514 | { |
| 515 | entry = "DllMainCRTStartup"; |
| 516 | } |
| 517 | else |
| 518 | { |
| 519 | for (i = 0; v[i].entry; i++) |
| 520 | if (v[i].value == pep_subsystem) |
| 521 | break; |
| 522 | |
| 523 | /* If no match, use the default. */ |
| 524 | if (v[i].entry != NULL) |
| 525 | entry = v[i].entry; |
| 526 | else |
| 527 | entry = default_entry; |
| 528 | } |
| 529 | |
| 530 | /* Now we check target's default for getting proper symbol_char. */ |
| 531 | initial_symbol_char = (is_underscoring () != 0 ? "_" : ""); |
| 532 | |
| 533 | if (*initial_symbol_char != '\0') |
| 534 | { |
| 535 | char *alc_entry; |
| 536 | |
| 537 | /* lang_default_entry expects its argument to be permanently |
| 538 | allocated, so we don't free this string. */ |
| 539 | alc_entry = xmalloc (strlen (initial_symbol_char) |
| 540 | + strlen (entry) |
| 541 | + 1); |
| 542 | strcpy (alc_entry, initial_symbol_char); |
| 543 | strcat (alc_entry, entry); |
| 544 | entry = alc_entry; |
| 545 | } |
| 546 | |
| 547 | lang_default_entry (entry); |
| 548 | } |
| 549 | |
| 550 | static void |
| 551 | set_pep_subsystem (void) |
| 552 | { |
| 553 | const char *sver; |
| 554 | char *end; |
| 555 | int len; |
| 556 | int i; |
| 557 | unsigned long temp_subsystem; |
| 558 | static const struct |
| 559 | { |
| 560 | const char *name; |
| 561 | const int value; |
| 562 | } |
| 563 | v[] = |
| 564 | { |
| 565 | { "native", 1 }, |
| 566 | { "windows", 2 }, |
| 567 | { "console", 3 }, |
| 568 | { "posix", 7 }, |
| 569 | { "wince", 9 }, |
| 570 | { "xbox", 14 }, |
| 571 | { NULL, 0 } |
| 572 | }; |
| 573 | |
| 574 | /* Check for the presence of a version number. */ |
| 575 | sver = strchr (optarg, ':'); |
| 576 | if (sver == NULL) |
| 577 | len = strlen (optarg); |
| 578 | else |
| 579 | { |
| 580 | len = sver - optarg; |
| 581 | set_pep_name ("__major_subsystem_version__", |
| 582 | strtoul (sver + 1, &end, 0)); |
| 583 | if (*end == '.') |
| 584 | set_pep_name ("__minor_subsystem_version__", |
| 585 | strtoul (end + 1, &end, 0)); |
| 586 | if (*end != '\0') |
| 587 | einfo (_("%P: warning: bad version number in -subsystem option\n")); |
| 588 | } |
| 589 | |
| 590 | /* Check for numeric subsystem. */ |
| 591 | temp_subsystem = strtoul (optarg, & end, 0); |
| 592 | if ((*end == ':' || *end == '\0') && (temp_subsystem < 65536)) |
| 593 | { |
| 594 | /* Search list for a numeric match to use its entry point. */ |
| 595 | for (i = 0; v[i].name; i++) |
| 596 | if (v[i].value == (int) temp_subsystem) |
| 597 | break; |
| 598 | |
| 599 | /* Use this subsystem. */ |
| 600 | pep_subsystem = (int) temp_subsystem; |
| 601 | } |
| 602 | else |
| 603 | { |
| 604 | /* Search for subsystem by name. */ |
| 605 | for (i = 0; v[i].name; i++) |
| 606 | if (strncmp (optarg, v[i].name, len) == 0 |
| 607 | && v[i].name[len] == '\0') |
| 608 | break; |
| 609 | |
| 610 | if (v[i].name == NULL) |
| 611 | { |
| 612 | einfo (_("%F%P: invalid subsystem type %s\n"), optarg); |
| 613 | return; |
| 614 | } |
| 615 | |
| 616 | pep_subsystem = v[i].value; |
| 617 | } |
| 618 | |
| 619 | set_pep_name ("__subsystem__", pep_subsystem); |
| 620 | |
| 621 | return; |
| 622 | } |
| 623 | |
| 624 | |
| 625 | static void |
| 626 | set_pep_value (char *name) |
| 627 | { |
| 628 | char *end; |
| 629 | |
| 630 | set_pep_name (name, (bfd_vma) strtoull (optarg, &end, 0)); |
| 631 | |
| 632 | if (end == optarg) |
| 633 | einfo (_("%F%P: invalid hex number for PE parameter '%s'\n"), optarg); |
| 634 | |
| 635 | optarg = end; |
| 636 | } |
| 637 | |
| 638 | |
| 639 | static void |
| 640 | set_pep_stack_heap (char *resname, char *comname) |
| 641 | { |
| 642 | set_pep_value (resname); |
| 643 | |
| 644 | if (*optarg == ',') |
| 645 | { |
| 646 | optarg++; |
| 647 | set_pep_value (comname); |
| 648 | } |
| 649 | else if (*optarg) |
| 650 | einfo (_("%F%P: strange hex info for PE parameter '%s'\n"), optarg); |
| 651 | } |
| 652 | |
| 653 | #define DEFAULT_BUILD_ID_STYLE "md5" |
| 654 | |
| 655 | static bfd_boolean |
| 656 | gld${EMULATION_NAME}_handle_option (int optc) |
| 657 | { |
| 658 | is_underscoring (); |
| 659 | switch (optc) |
| 660 | { |
| 661 | default: |
| 662 | return FALSE; |
| 663 | |
| 664 | case OPTION_BASE_FILE: |
| 665 | link_info.base_file = fopen (optarg, FOPEN_WB); |
| 666 | if (link_info.base_file == NULL) |
| 667 | einfo (_("%F%P: cannot open base file %s\n"), optarg); |
| 668 | break; |
| 669 | |
| 670 | /* PE options. */ |
| 671 | case OPTION_HEAP: |
| 672 | set_pep_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__"); |
| 673 | break; |
| 674 | case OPTION_STACK: |
| 675 | set_pep_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__"); |
| 676 | break; |
| 677 | case OPTION_SUBSYSTEM: |
| 678 | set_pep_subsystem (); |
| 679 | break; |
| 680 | case OPTION_MAJOR_OS_VERSION: |
| 681 | set_pep_value ("__major_os_version__"); |
| 682 | break; |
| 683 | case OPTION_MINOR_OS_VERSION: |
| 684 | set_pep_value ("__minor_os_version__"); |
| 685 | break; |
| 686 | case OPTION_MAJOR_SUBSYSTEM_VERSION: |
| 687 | set_pep_value ("__major_subsystem_version__"); |
| 688 | break; |
| 689 | case OPTION_MINOR_SUBSYSTEM_VERSION: |
| 690 | set_pep_value ("__minor_subsystem_version__"); |
| 691 | break; |
| 692 | case OPTION_MAJOR_IMAGE_VERSION: |
| 693 | set_pep_value ("__major_image_version__"); |
| 694 | break; |
| 695 | case OPTION_MINOR_IMAGE_VERSION: |
| 696 | set_pep_value ("__minor_image_version__"); |
| 697 | break; |
| 698 | case OPTION_FILE_ALIGNMENT: |
| 699 | set_pep_value ("__file_alignment__"); |
| 700 | break; |
| 701 | case OPTION_SECTION_ALIGNMENT: |
| 702 | set_pep_value ("__section_alignment__"); |
| 703 | break; |
| 704 | case OPTION_DLL: |
| 705 | set_pep_name ("__dll__", 1); |
| 706 | break; |
| 707 | case OPTION_IMAGE_BASE: |
| 708 | set_pep_value ("__image_base__"); |
| 709 | break; |
| 710 | case OPTION_SUPPORT_OLD_CODE: |
| 711 | support_old_code = 1; |
| 712 | break; |
| 713 | case OPTION_USE_NUL_PREFIXED_IMPORT_TABLES: |
| 714 | pep_use_nul_prefixed_import_tables = TRUE; |
| 715 | break; |
| 716 | case OPTION_NO_LEADING_UNDERSCORE: |
| 717 | pep_leading_underscore = 0; |
| 718 | break; |
| 719 | case OPTION_LEADING_UNDERSCORE: |
| 720 | pep_leading_underscore = 1; |
| 721 | break; |
| 722 | case OPTION_INSERT_TIMESTAMP: |
| 723 | insert_timestamp = TRUE; |
| 724 | break; |
| 725 | case OPTION_NO_INSERT_TIMESTAMP: |
| 726 | insert_timestamp = FALSE; |
| 727 | break; |
| 728 | #ifdef DLL_SUPPORT |
| 729 | case OPTION_OUT_DEF: |
| 730 | pep_out_def_filename = xstrdup (optarg); |
| 731 | break; |
| 732 | case OPTION_EXPORT_ALL: |
| 733 | pep_dll_export_everything = 1; |
| 734 | break; |
| 735 | case OPTION_EXCLUDE_SYMBOLS: |
| 736 | pep_dll_add_excludes (optarg, EXCLUDESYMS); |
| 737 | break; |
| 738 | case OPTION_EXCLUDE_ALL_SYMBOLS: |
| 739 | pep_dll_exclude_all_symbols = 1; |
| 740 | break; |
| 741 | case OPTION_EXCLUDE_LIBS: |
| 742 | pep_dll_add_excludes (optarg, EXCLUDELIBS); |
| 743 | break; |
| 744 | case OPTION_EXCLUDE_MODULES_FOR_IMPLIB: |
| 745 | pep_dll_add_excludes (optarg, EXCLUDEFORIMPLIB); |
| 746 | break; |
| 747 | case OPTION_KILL_ATS: |
| 748 | pep_dll_kill_ats = 1; |
| 749 | break; |
| 750 | case OPTION_STDCALL_ALIASES: |
| 751 | pep_dll_stdcall_aliases = 1; |
| 752 | break; |
| 753 | case OPTION_ENABLE_STDCALL_FIXUP: |
| 754 | pep_enable_stdcall_fixup = 1; |
| 755 | break; |
| 756 | case OPTION_DISABLE_STDCALL_FIXUP: |
| 757 | pep_enable_stdcall_fixup = 0; |
| 758 | break; |
| 759 | case OPTION_WARN_DUPLICATE_EXPORTS: |
| 760 | pep_dll_warn_dup_exports = 1; |
| 761 | break; |
| 762 | case OPTION_IMP_COMPAT: |
| 763 | pep_dll_compat_implib = 1; |
| 764 | break; |
| 765 | case OPTION_ENABLE_AUTO_IMAGE_BASE: |
| 766 | pep_enable_auto_image_base = 1; |
| 767 | break; |
| 768 | case OPTION_DISABLE_AUTO_IMAGE_BASE: |
| 769 | pep_enable_auto_image_base = 0; |
| 770 | break; |
| 771 | case OPTION_DLL_SEARCH_PREFIX: |
| 772 | pep_dll_search_prefix = xstrdup (optarg); |
| 773 | break; |
| 774 | case OPTION_NO_DEFAULT_EXCLUDES: |
| 775 | pep_dll_do_default_excludes = 0; |
| 776 | break; |
| 777 | case OPTION_DLL_ENABLE_AUTO_IMPORT: |
| 778 | link_info.pei386_auto_import = 1; |
| 779 | break; |
| 780 | case OPTION_DLL_DISABLE_AUTO_IMPORT: |
| 781 | link_info.pei386_auto_import = 0; |
| 782 | break; |
| 783 | case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC: |
| 784 | link_info.pei386_runtime_pseudo_reloc = 2; |
| 785 | break; |
| 786 | case OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC: |
| 787 | link_info.pei386_runtime_pseudo_reloc = 0; |
| 788 | break; |
| 789 | case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2: |
| 790 | link_info.pei386_runtime_pseudo_reloc = 2; |
| 791 | break; |
| 792 | case OPTION_ENABLE_EXTRA_PE_DEBUG: |
| 793 | pep_dll_extra_pe_debug = 1; |
| 794 | break; |
| 795 | #endif |
| 796 | case OPTION_ENABLE_LONG_SECTION_NAMES: |
| 797 | pep_use_coff_long_section_names = 1; |
| 798 | break; |
| 799 | case OPTION_DISABLE_LONG_SECTION_NAMES: |
| 800 | pep_use_coff_long_section_names = 0; |
| 801 | break; |
| 802 | /* Get DLLCharacteristics bits */ |
| 803 | case OPTION_HIGH_ENTROPY_VA: |
| 804 | pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_HIGH_ENTROPY_VA; |
| 805 | /* fall through */ |
| 806 | case OPTION_DYNAMIC_BASE: |
| 807 | pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_DYNAMIC_BASE; |
| 808 | /* fall through */ |
| 809 | case OPTION_ENABLE_RELOC_SECTION: |
| 810 | pep_dll_enable_reloc_section = 1; |
| 811 | break; |
| 812 | case OPTION_FORCE_INTEGRITY: |
| 813 | pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_FORCE_INTEGRITY; |
| 814 | break; |
| 815 | case OPTION_NX_COMPAT: |
| 816 | pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_NX_COMPAT; |
| 817 | break; |
| 818 | case OPTION_NO_ISOLATION: |
| 819 | pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_ISOLATION; |
| 820 | break; |
| 821 | case OPTION_NO_SEH: |
| 822 | pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_SEH; |
| 823 | break; |
| 824 | case OPTION_NO_BIND: |
| 825 | pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_BIND; |
| 826 | break; |
| 827 | case OPTION_WDM_DRIVER: |
| 828 | pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_WDM_DRIVER; |
| 829 | break; |
| 830 | case OPTION_TERMINAL_SERVER_AWARE: |
| 831 | pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE; |
| 832 | break; |
| 833 | case OPTION_BUILD_ID: |
| 834 | if (emit_build_id != NULL) |
| 835 | { |
| 836 | free ((char *) emit_build_id); |
| 837 | emit_build_id = NULL; |
| 838 | } |
| 839 | if (optarg == NULL) |
| 840 | optarg = DEFAULT_BUILD_ID_STYLE; |
| 841 | if (strcmp (optarg, "none")) |
| 842 | emit_build_id = xstrdup (optarg); |
| 843 | break; |
| 844 | } |
| 845 | |
| 846 | /* Set DLLCharacteristics bits */ |
| 847 | set_pep_name ("__dll_characteristics__", pe_dll_characteristics); |
| 848 | |
| 849 | return TRUE; |
| 850 | } |
| 851 | \f |
| 852 | |
| 853 | #ifdef DLL_SUPPORT |
| 854 | static unsigned long |
| 855 | strhash (const char *str) |
| 856 | { |
| 857 | const unsigned char *s; |
| 858 | unsigned long hash; |
| 859 | unsigned int c; |
| 860 | unsigned int len; |
| 861 | |
| 862 | hash = 0; |
| 863 | len = 0; |
| 864 | s = (const unsigned char *) str; |
| 865 | while ((c = *s++) != '\0') |
| 866 | { |
| 867 | hash += c + (c << 17); |
| 868 | hash ^= hash >> 2; |
| 869 | ++len; |
| 870 | } |
| 871 | hash += len + (len << 17); |
| 872 | hash ^= hash >> 2; |
| 873 | |
| 874 | return hash; |
| 875 | } |
| 876 | |
| 877 | /* Use the output file to create a image base for relocatable DLLs. */ |
| 878 | |
| 879 | static bfd_vma |
| 880 | compute_dll_image_base (const char *ofile) |
| 881 | { |
| 882 | bfd_vma hash = (bfd_vma) strhash (ofile); |
| 883 | return NT_DLL_AUTO_IMAGE_BASE + ((hash << 16) & NT_DLL_AUTO_IMAGE_MASK); |
| 884 | } |
| 885 | #endif |
| 886 | |
| 887 | /* Assign values to the special symbols before the linker script is |
| 888 | read. */ |
| 889 | |
| 890 | static void |
| 891 | gld_${EMULATION_NAME}_set_symbols (void) |
| 892 | { |
| 893 | /* Run through and invent symbols for all the |
| 894 | names and insert the defaults. */ |
| 895 | int j; |
| 896 | |
| 897 | is_underscoring (); |
| 898 | |
| 899 | if (!init[IMAGEBASEOFF].inited) |
| 900 | { |
| 901 | if (bfd_link_relocatable (&link_info)) |
| 902 | init[IMAGEBASEOFF].value = 0; |
| 903 | else if (init[DLLOFF].value || bfd_link_dll (&link_info)) |
| 904 | { |
| 905 | #ifdef DLL_SUPPORT |
| 906 | init[IMAGEBASEOFF].value = (pep_enable_auto_image_base |
| 907 | ? compute_dll_image_base (output_filename) |
| 908 | : NT_DLL_IMAGE_BASE); |
| 909 | #else |
| 910 | init[IMAGEBASEOFF].value = NT_DLL_IMAGE_BASE; |
| 911 | #endif |
| 912 | } |
| 913 | else |
| 914 | init[IMAGEBASEOFF].value = NT_EXE_IMAGE_BASE; |
| 915 | init[MSIMAGEBASEOFF].value = init[IMAGEBASEOFF].value; |
| 916 | } |
| 917 | |
| 918 | /* Don't do any symbol assignments if this is a relocatable link. */ |
| 919 | if (bfd_link_relocatable (&link_info)) |
| 920 | return; |
| 921 | |
| 922 | /* Glue the assignments into the abs section. */ |
| 923 | push_stat_ptr (&abs_output_section->children); |
| 924 | |
| 925 | for (j = 0; init[j].ptr; j++) |
| 926 | { |
| 927 | bfd_vma val = init[j].value; |
| 928 | lang_assignment_statement_type *rv; |
| 929 | |
| 930 | rv = lang_add_assignment (exp_assign (GET_INIT_SYMBOL_NAME (j), |
| 931 | exp_intop (val), FALSE)); |
| 932 | if (init[j].size == sizeof (short)) |
| 933 | *(short *) init[j].ptr = (short) val; |
| 934 | else if (init[j].size == sizeof (int)) |
| 935 | *(int *) init[j].ptr = (int) val; |
| 936 | else if (init[j].size == sizeof (long)) |
| 937 | *(long *) init[j].ptr = (long) val; |
| 938 | /* This might be a long long or other special type. */ |
| 939 | else if (init[j].size == sizeof (bfd_vma)) |
| 940 | *(bfd_vma *) init[j].ptr = val; |
| 941 | else abort (); |
| 942 | if (j == IMAGEBASEOFF) |
| 943 | image_base_statement = rv; |
| 944 | } |
| 945 | /* Restore the pointer. */ |
| 946 | pop_stat_ptr (); |
| 947 | |
| 948 | if (pep.FileAlignment > pep.SectionAlignment) |
| 949 | { |
| 950 | einfo (_("%P: warning, file alignment > section alignment\n")); |
| 951 | } |
| 952 | } |
| 953 | |
| 954 | /* This is called after the linker script and the command line options |
| 955 | have been read. */ |
| 956 | |
| 957 | static void |
| 958 | gld_${EMULATION_NAME}_after_parse (void) |
| 959 | { |
| 960 | /* PR ld/6744: Warn the user if they have used an ELF-only |
| 961 | option hoping it will work on PE+. */ |
| 962 | if (link_info.export_dynamic) |
| 963 | einfo (_("%P: warning: --export-dynamic is not supported for PE+ " |
| 964 | "targets, did you mean --export-all-symbols?\n")); |
| 965 | |
| 966 | set_entry_point (); |
| 967 | |
| 968 | after_parse_default (); |
| 969 | } |
| 970 | |
| 971 | #ifdef DLL_SUPPORT |
| 972 | static struct bfd_link_hash_entry *pep_undef_found_sym; |
| 973 | |
| 974 | static bfd_boolean |
| 975 | pep_undef_cdecl_match (struct bfd_link_hash_entry *h, void *inf) |
| 976 | { |
| 977 | int sl; |
| 978 | char *string = inf; |
| 979 | const char *hs = h->root.string; |
| 980 | |
| 981 | sl = strlen (string); |
| 982 | if (h->type == bfd_link_hash_defined |
| 983 | && ((*hs == '@' && *string == '_' |
| 984 | && strncmp (hs + 1, string + 1, sl - 1) == 0) |
| 985 | || strncmp (hs, string, sl) == 0) |
| 986 | && h->root.string[sl] == '@') |
| 987 | { |
| 988 | pep_undef_found_sym = h; |
| 989 | return FALSE; |
| 990 | } |
| 991 | return TRUE; |
| 992 | } |
| 993 | |
| 994 | static void |
| 995 | pep_fixup_stdcalls (void) |
| 996 | { |
| 997 | static int gave_warning_message = 0; |
| 998 | struct bfd_link_hash_entry *undef, *sym; |
| 999 | |
| 1000 | if (pep_dll_extra_pe_debug) |
| 1001 | printf ("%s\n", __FUNCTION__); |
| 1002 | |
| 1003 | for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next) |
| 1004 | if (undef->type == bfd_link_hash_undefined) |
| 1005 | { |
| 1006 | char* at = strchr (undef->root.string, '@'); |
| 1007 | int lead_at = (*undef->root.string == '@'); |
| 1008 | if (lead_at) |
| 1009 | at = strchr (undef->root.string + 1, '@'); |
| 1010 | if (at || lead_at) |
| 1011 | { |
| 1012 | /* The symbol is a stdcall symbol, so let's look for a |
| 1013 | cdecl symbol with the same name and resolve to that. */ |
| 1014 | char *cname = xstrdup (undef->root.string); |
| 1015 | |
| 1016 | if (lead_at) |
| 1017 | *cname = '_'; |
| 1018 | at = strchr (cname, '@'); |
| 1019 | if (at) |
| 1020 | *at = 0; |
| 1021 | sym = bfd_link_hash_lookup (link_info.hash, cname, 0, 0, 1); |
| 1022 | |
| 1023 | if (sym && sym->type == bfd_link_hash_defined) |
| 1024 | { |
| 1025 | undef->type = bfd_link_hash_defined; |
| 1026 | undef->u.def.value = sym->u.def.value; |
| 1027 | undef->u.def.section = sym->u.def.section; |
| 1028 | |
| 1029 | if (pep_enable_stdcall_fixup == -1) |
| 1030 | { |
| 1031 | einfo (_("warning: resolving %s by linking to %s\n"), |
| 1032 | undef->root.string, cname); |
| 1033 | if (! gave_warning_message) |
| 1034 | { |
| 1035 | gave_warning_message = 1; |
| 1036 | einfo (_("Use --enable-stdcall-fixup to disable these warnings\n")); |
| 1037 | einfo (_("Use --disable-stdcall-fixup to disable these fixups\n")); |
| 1038 | } |
| 1039 | } |
| 1040 | } |
| 1041 | } |
| 1042 | else |
| 1043 | { |
| 1044 | /* The symbol is a cdecl symbol, so we look for stdcall |
| 1045 | symbols - which means scanning the whole symbol table. */ |
| 1046 | pep_undef_found_sym = 0; |
| 1047 | bfd_link_hash_traverse (link_info.hash, pep_undef_cdecl_match, |
| 1048 | (char *) undef->root.string); |
| 1049 | sym = pep_undef_found_sym; |
| 1050 | if (sym) |
| 1051 | { |
| 1052 | undef->type = bfd_link_hash_defined; |
| 1053 | undef->u.def.value = sym->u.def.value; |
| 1054 | undef->u.def.section = sym->u.def.section; |
| 1055 | |
| 1056 | if (pep_enable_stdcall_fixup == -1) |
| 1057 | { |
| 1058 | einfo (_("warning: resolving %s by linking to %s\n"), |
| 1059 | undef->root.string, sym->root.string); |
| 1060 | if (! gave_warning_message) |
| 1061 | { |
| 1062 | gave_warning_message = 1; |
| 1063 | einfo (_("Use --enable-stdcall-fixup to disable these warnings\n")); |
| 1064 | einfo (_("Use --disable-stdcall-fixup to disable these fixups\n")); |
| 1065 | } |
| 1066 | } |
| 1067 | } |
| 1068 | } |
| 1069 | } |
| 1070 | } |
| 1071 | |
| 1072 | static void |
| 1073 | make_import_fixup (arelent *rel, asection *s, char *name, const char *symname) |
| 1074 | { |
| 1075 | struct bfd_symbol *sym = *rel->sym_ptr_ptr; |
| 1076 | char addend[8]; |
| 1077 | bfd_vma _addend = 0; |
| 1078 | int suc = 0; |
| 1079 | |
| 1080 | if (pep_dll_extra_pe_debug) |
| 1081 | printf ("arelent: %s@%#lx: add=%li\n", sym->name, |
| 1082 | (unsigned long) rel->address, (long) rel->addend); |
| 1083 | |
| 1084 | memset (addend, 0, sizeof (addend)); |
| 1085 | switch ((rel->howto->bitsize)) |
| 1086 | { |
| 1087 | case 8: |
| 1088 | suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 1); |
| 1089 | if (suc && rel->howto->pc_relative) |
| 1090 | _addend = bfd_get_signed_8 (s->owner, addend); |
| 1091 | else if (suc) |
| 1092 | _addend = bfd_get_8 (s->owner, addend); |
| 1093 | break; |
| 1094 | case 16: |
| 1095 | suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 2); |
| 1096 | if (suc && rel->howto->pc_relative) |
| 1097 | _addend = bfd_get_signed_16 (s->owner, addend); |
| 1098 | else if (suc) |
| 1099 | _addend = bfd_get_16 (s->owner, addend); |
| 1100 | break; |
| 1101 | case 32: |
| 1102 | suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 4); |
| 1103 | if (suc && rel->howto->pc_relative) |
| 1104 | _addend = bfd_get_signed_32 (s->owner, addend); |
| 1105 | else if (suc) |
| 1106 | _addend = bfd_get_32 (s->owner, addend); |
| 1107 | break; |
| 1108 | case 64: |
| 1109 | suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 8); |
| 1110 | if (suc) |
| 1111 | _addend = bfd_get_64 (s->owner, addend); |
| 1112 | break; |
| 1113 | } |
| 1114 | if (! suc) |
| 1115 | einfo (_("%P: %C: cannot get section contents - auto-import exception\n"), |
| 1116 | s->owner, s, rel->address); |
| 1117 | |
| 1118 | if (pep_dll_extra_pe_debug) |
| 1119 | { |
| 1120 | printf ("import of 0x%lx(0x%lx) sec_addr=0x%lx", |
| 1121 | (long) _addend, (long) rel->addend, (long) rel->address); |
| 1122 | if (rel->howto->pc_relative) |
| 1123 | printf (" pcrel"); |
| 1124 | printf (" %d bit rel.\n", (int) rel->howto->bitsize); |
| 1125 | } |
| 1126 | |
| 1127 | pep_create_import_fixup (rel, s, _addend, name, symname); |
| 1128 | } |
| 1129 | |
| 1130 | static bfd_boolean |
| 1131 | pr_sym (struct bfd_hash_entry *h, void *inf ATTRIBUTE_UNUSED) |
| 1132 | { |
| 1133 | printf ("+%s\n", h->string); |
| 1134 | |
| 1135 | return TRUE; |
| 1136 | } |
| 1137 | #endif /* DLL_SUPPORT */ |
| 1138 | |
| 1139 | static void |
| 1140 | debug_section_p (bfd *abfd ATTRIBUTE_UNUSED, asection *sect, void *obj) |
| 1141 | { |
| 1142 | int *found = (int *) obj; |
| 1143 | |
| 1144 | if (strncmp (".debug_", sect->name, sizeof (".debug_") - 1) == 0) |
| 1145 | *found = 1; |
| 1146 | } |
| 1147 | |
| 1148 | static bfd_boolean |
| 1149 | pecoff_checksum_contents (bfd *abfd, |
| 1150 | void (*process) (const void *, size_t, void *), |
| 1151 | void *arg) |
| 1152 | { |
| 1153 | file_ptr filepos = (file_ptr) 0; |
| 1154 | |
| 1155 | while (1) |
| 1156 | { |
| 1157 | unsigned char b; |
| 1158 | int status; |
| 1159 | |
| 1160 | if (bfd_seek (abfd, filepos, SEEK_SET) != 0) |
| 1161 | return 0; |
| 1162 | |
| 1163 | status = bfd_bread (&b, (bfd_size_type) 1, abfd); |
| 1164 | if (status < 1) |
| 1165 | { |
| 1166 | break; |
| 1167 | } |
| 1168 | |
| 1169 | (*process) (&b, 1, arg); |
| 1170 | filepos += 1; |
| 1171 | } |
| 1172 | |
| 1173 | return TRUE; |
| 1174 | } |
| 1175 | |
| 1176 | static bfd_boolean |
| 1177 | write_build_id (bfd *abfd) |
| 1178 | { |
| 1179 | struct pe_tdata *t = pe_data (abfd); |
| 1180 | asection *asec; |
| 1181 | struct bfd_link_order *link_order = NULL; |
| 1182 | unsigned char *contents; |
| 1183 | bfd_size_type size; |
| 1184 | bfd_size_type build_id_size; |
| 1185 | unsigned char *build_id; |
| 1186 | |
| 1187 | /* Find the section the .buildid output section has been merged info. */ |
| 1188 | for (asec = abfd->sections; asec != NULL; asec = asec->next) |
| 1189 | { |
| 1190 | struct bfd_link_order *l = NULL; |
| 1191 | for (l = asec->map_head.link_order; l != NULL; l = l->next) |
| 1192 | { |
| 1193 | if (l->type == bfd_indirect_link_order) |
| 1194 | { |
| 1195 | if (l->u.indirect.section == t->build_id.sec) |
| 1196 | { |
| 1197 | link_order = l; |
| 1198 | break; |
| 1199 | } |
| 1200 | } |
| 1201 | } |
| 1202 | |
| 1203 | if (link_order) |
| 1204 | break; |
| 1205 | } |
| 1206 | |
| 1207 | if (!link_order) |
| 1208 | { |
| 1209 | einfo (_("%P: warning: .buildid section discarded," |
| 1210 | " --build-id ignored\n")); |
| 1211 | return TRUE; |
| 1212 | } |
| 1213 | |
| 1214 | if (t->build_id.sec->contents == NULL) |
| 1215 | t->build_id.sec->contents = (unsigned char *) xmalloc (t->build_id.sec->size); |
| 1216 | contents = t->build_id.sec->contents; |
| 1217 | size = t->build_id.sec->size; |
| 1218 | |
| 1219 | build_id_size = compute_build_id_size (t->build_id.style); |
| 1220 | build_id = xmalloc (build_id_size); |
| 1221 | generate_build_id (abfd, t->build_id.style, pecoff_checksum_contents, build_id, build_id_size); |
| 1222 | |
| 1223 | bfd_vma ib = pe_data (link_info.output_bfd)->pe_opthdr.ImageBase; |
| 1224 | |
| 1225 | /* Construct a debug directory entry which points to an immediately following CodeView record. */ |
| 1226 | struct internal_IMAGE_DEBUG_DIRECTORY idd; |
| 1227 | idd.Characteristics = 0; |
| 1228 | idd.TimeDateStamp = 0; |
| 1229 | idd.MajorVersion = 0; |
| 1230 | idd.MinorVersion = 0; |
| 1231 | idd.Type = PE_IMAGE_DEBUG_TYPE_CODEVIEW; |
| 1232 | idd.SizeOfData = sizeof (CV_INFO_PDB70) + 1; |
| 1233 | idd.AddressOfRawData = asec->vma - ib + link_order->offset |
| 1234 | + sizeof (struct external_IMAGE_DEBUG_DIRECTORY); |
| 1235 | idd.PointerToRawData = asec->filepos + link_order->offset |
| 1236 | + sizeof (struct external_IMAGE_DEBUG_DIRECTORY); |
| 1237 | |
| 1238 | struct external_IMAGE_DEBUG_DIRECTORY *ext = (struct external_IMAGE_DEBUG_DIRECTORY *)contents; |
| 1239 | _bfd_XXi_swap_debugdir_out (abfd, &idd, ext); |
| 1240 | |
| 1241 | /* Write the debug directory enttry */ |
| 1242 | if (bfd_seek (abfd, asec->filepos + link_order->offset, SEEK_SET) != 0) |
| 1243 | return 0; |
| 1244 | |
| 1245 | if (bfd_bwrite (contents, size, abfd) != size) |
| 1246 | return 0; |
| 1247 | |
| 1248 | /* Construct the CodeView record. */ |
| 1249 | CODEVIEW_INFO cvinfo; |
| 1250 | cvinfo.CVSignature = CVINFO_PDB70_CVSIGNATURE; |
| 1251 | cvinfo.Age = 1; |
| 1252 | |
| 1253 | /* Zero pad or truncate the generated build_id to fit in the CodeView record. */ |
| 1254 | memset (&(cvinfo.Signature), 0, CV_INFO_SIGNATURE_LENGTH); |
| 1255 | memcpy (&(cvinfo.Signature), build_id, (build_id_size > CV_INFO_SIGNATURE_LENGTH) |
| 1256 | ? CV_INFO_SIGNATURE_LENGTH : build_id_size); |
| 1257 | |
| 1258 | free (build_id); |
| 1259 | |
| 1260 | /* Write the codeview record. */ |
| 1261 | if (_bfd_XXi_write_codeview_record (abfd, idd.PointerToRawData, &cvinfo) == 0) |
| 1262 | return 0; |
| 1263 | |
| 1264 | /* Record the location of the debug directory in the data directory. */ |
| 1265 | pe_data (link_info.output_bfd)->pe_opthdr.DataDirectory[PE_DEBUG_DATA].VirtualAddress |
| 1266 | = asec->vma - ib + link_order->offset; |
| 1267 | pe_data (link_info.output_bfd)->pe_opthdr.DataDirectory[PE_DEBUG_DATA].Size |
| 1268 | = sizeof (struct external_IMAGE_DEBUG_DIRECTORY); |
| 1269 | |
| 1270 | return TRUE; |
| 1271 | } |
| 1272 | |
| 1273 | /* Make .buildid section, and set up coff_tdata->build_id. */ |
| 1274 | static bfd_boolean |
| 1275 | setup_build_id (bfd *ibfd) |
| 1276 | { |
| 1277 | asection *s; |
| 1278 | flagword flags; |
| 1279 | |
| 1280 | if (!validate_build_id_style (emit_build_id)) |
| 1281 | { |
| 1282 | einfo (_("%P: warning: unrecognized --build-id style ignored\n")); |
| 1283 | return FALSE; |
| 1284 | } |
| 1285 | |
| 1286 | flags = (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_IN_MEMORY |
| 1287 | | SEC_LINKER_CREATED | SEC_READONLY | SEC_DATA); |
| 1288 | s = bfd_make_section_anyway_with_flags (ibfd, ".buildid", flags); |
| 1289 | if (s != NULL) |
| 1290 | { |
| 1291 | struct pe_tdata *t = pe_data (link_info.output_bfd); |
| 1292 | t->build_id.after_write_object_contents = &write_build_id; |
| 1293 | t->build_id.style = emit_build_id; |
| 1294 | t->build_id.sec = s; |
| 1295 | |
| 1296 | /* Section is a fixed size: |
| 1297 | One IMAGE_DEBUG_DIRECTORY entry, of type IMAGE_DEBUG_TYPE_CODEVIEW, |
| 1298 | pointing at a CV_INFO_PDB70 record containing the build-id, with a |
| 1299 | null byte for PdbFileName. */ |
| 1300 | s->size = sizeof (struct external_IMAGE_DEBUG_DIRECTORY) |
| 1301 | + sizeof (CV_INFO_PDB70) + 1; |
| 1302 | |
| 1303 | return TRUE; |
| 1304 | } |
| 1305 | |
| 1306 | einfo (_("%P: warning: cannot create .buildid section," |
| 1307 | " --build-id ignored\n")); |
| 1308 | return FALSE; |
| 1309 | } |
| 1310 | |
| 1311 | static void |
| 1312 | gld_${EMULATION_NAME}_after_open (void) |
| 1313 | { |
| 1314 | after_open_default (); |
| 1315 | |
| 1316 | is_underscoring (); |
| 1317 | #ifdef DLL_SUPPORT |
| 1318 | if (pep_dll_extra_pe_debug) |
| 1319 | { |
| 1320 | bfd *a; |
| 1321 | struct bfd_link_hash_entry *sym; |
| 1322 | |
| 1323 | printf ("%s()\n", __FUNCTION__); |
| 1324 | |
| 1325 | for (sym = link_info.hash->undefs; sym; sym=sym->u.undef.next) |
| 1326 | printf ("-%s\n", sym->root.string); |
| 1327 | bfd_hash_traverse (&link_info.hash->table, pr_sym, NULL); |
| 1328 | |
| 1329 | for (a = link_info.input_bfds; a; a = a->link.next) |
| 1330 | printf ("*%s\n",a->filename); |
| 1331 | } |
| 1332 | #endif |
| 1333 | |
| 1334 | if (emit_build_id != NULL) |
| 1335 | { |
| 1336 | bfd *abfd; |
| 1337 | |
| 1338 | /* Find a COFF input. */ |
| 1339 | for (abfd = link_info.input_bfds; |
| 1340 | abfd != (bfd *) NULL; abfd = abfd->link.next) |
| 1341 | if (bfd_get_flavour (abfd) == bfd_target_coff_flavour) |
| 1342 | break; |
| 1343 | |
| 1344 | /* If there are no COFF input files do not try to |
| 1345 | add a build-id section. */ |
| 1346 | if (abfd == NULL |
| 1347 | || !setup_build_id (abfd)) |
| 1348 | { |
| 1349 | free ((char *) emit_build_id); |
| 1350 | emit_build_id = NULL; |
| 1351 | } |
| 1352 | } |
| 1353 | |
| 1354 | /* Pass the wacky PE command line options into the output bfd. |
| 1355 | FIXME: This should be done via a function, rather than by |
| 1356 | including an internal BFD header. */ |
| 1357 | |
| 1358 | if (bfd_get_flavour (link_info.output_bfd) != bfd_target_coff_flavour |
| 1359 | || coff_data (link_info.output_bfd) == NULL |
| 1360 | || coff_data (link_info.output_bfd)->pe == 0) |
| 1361 | einfo (_("%F%P: cannot perform PE operations on non PE output file '%pB'\n"), |
| 1362 | link_info.output_bfd); |
| 1363 | |
| 1364 | pe_data (link_info.output_bfd)->pe_opthdr = pep; |
| 1365 | pe_data (link_info.output_bfd)->dll = init[DLLOFF].value; |
| 1366 | pe_data (link_info.output_bfd)->real_flags |= real_flags; |
| 1367 | if (insert_timestamp) |
| 1368 | pe_data (link_info.output_bfd)->timestamp = -1; |
| 1369 | else |
| 1370 | pe_data (link_info.output_bfd)->timestamp = 0; |
| 1371 | |
| 1372 | /* At this point we must decide whether to use long section names |
| 1373 | in the output or not. If the user hasn't explicitly specified |
| 1374 | on the command line, we leave it to the default for the format |
| 1375 | (object files yes, image files no), except if there is debug |
| 1376 | information present; GDB relies on the long section names to |
| 1377 | find it, so enable it in that case. */ |
| 1378 | if (pep_use_coff_long_section_names < 0 && link_info.strip == strip_none) |
| 1379 | { |
| 1380 | if (bfd_link_relocatable (&link_info)) |
| 1381 | pep_use_coff_long_section_names = 1; |
| 1382 | else |
| 1383 | { |
| 1384 | /* Iterate over all sections of all input BFDs, checking |
| 1385 | for any that begin 'debug_' and are long names. */ |
| 1386 | LANG_FOR_EACH_INPUT_STATEMENT (is) |
| 1387 | { |
| 1388 | int found_debug = 0; |
| 1389 | |
| 1390 | bfd_map_over_sections (is->the_bfd, debug_section_p, &found_debug); |
| 1391 | if (found_debug) |
| 1392 | { |
| 1393 | pep_use_coff_long_section_names = 1; |
| 1394 | break; |
| 1395 | } |
| 1396 | } |
| 1397 | } |
| 1398 | } |
| 1399 | |
| 1400 | pep_output_file_set_long_section_names (link_info.output_bfd); |
| 1401 | |
| 1402 | #ifdef DLL_SUPPORT |
| 1403 | pep_process_import_defs (link_info.output_bfd, &link_info); |
| 1404 | |
| 1405 | if (link_info.pei386_auto_import) /* -1=warn or 1=enable */ |
| 1406 | pep_find_data_imports (U ("_head_"), make_import_fixup); |
| 1407 | |
| 1408 | /* The implementation of the feature is rather dumb and would cause the |
| 1409 | compilation time to go through the roof if there are many undefined |
| 1410 | symbols in the link, so it needs to be run after auto-import. */ |
| 1411 | if (pep_enable_stdcall_fixup) /* -1=warn or 1=enable */ |
| 1412 | pep_fixup_stdcalls (); |
| 1413 | |
| 1414 | #ifndef TARGET_IS_i386pep |
| 1415 | if (bfd_link_pic (&link_info)) |
| 1416 | #else |
| 1417 | if (!bfd_link_relocatable (&link_info)) |
| 1418 | #endif |
| 1419 | pep_dll_build_sections (link_info.output_bfd, &link_info); |
| 1420 | |
| 1421 | #ifndef TARGET_IS_i386pep |
| 1422 | else |
| 1423 | pep_exe_build_sections (link_info.output_bfd, &link_info); |
| 1424 | #endif |
| 1425 | #endif /* DLL_SUPPORT */ |
| 1426 | |
| 1427 | { |
| 1428 | /* This next chunk of code tries to detect the case where you have |
| 1429 | two import libraries for the same DLL (specifically, |
| 1430 | symbolically linking libm.a and libc.a in cygwin to |
| 1431 | libcygwin.a). In those cases, it's possible for function |
| 1432 | thunks from the second implib to be used but without the |
| 1433 | head/tail objects, causing an improper import table. We detect |
| 1434 | those cases and rename the "other" import libraries to match |
| 1435 | the one the head/tail come from, so that the linker will sort |
| 1436 | things nicely and produce a valid import table. */ |
| 1437 | |
| 1438 | LANG_FOR_EACH_INPUT_STATEMENT (is) |
| 1439 | { |
| 1440 | if (is->the_bfd->my_archive) |
| 1441 | { |
| 1442 | int idata2 = 0, reloc_count=0, is_imp = 0; |
| 1443 | asection *sec; |
| 1444 | |
| 1445 | /* See if this is an import library thunk. */ |
| 1446 | for (sec = is->the_bfd->sections; sec; sec = sec->next) |
| 1447 | { |
| 1448 | if (strcmp (sec->name, ".idata\$2") == 0) |
| 1449 | idata2 = 1; |
| 1450 | if (CONST_STRNEQ (sec->name, ".idata\$")) |
| 1451 | is_imp = 1; |
| 1452 | reloc_count += sec->reloc_count; |
| 1453 | } |
| 1454 | |
| 1455 | if (is_imp && !idata2 && reloc_count) |
| 1456 | { |
| 1457 | /* It is, look for the reference to head and see if it's |
| 1458 | from our own library. */ |
| 1459 | for (sec = is->the_bfd->sections; sec; sec = sec->next) |
| 1460 | { |
| 1461 | int i; |
| 1462 | long relsize; |
| 1463 | asymbol **symbols; |
| 1464 | arelent **relocs; |
| 1465 | int nrelocs; |
| 1466 | |
| 1467 | relsize = bfd_get_reloc_upper_bound (is->the_bfd, sec); |
| 1468 | if (relsize < 1) |
| 1469 | break; |
| 1470 | |
| 1471 | if (!bfd_generic_link_read_symbols (is->the_bfd)) |
| 1472 | { |
| 1473 | einfo (_("%F%P: %pB: could not read symbols: %E\n"), |
| 1474 | is->the_bfd); |
| 1475 | return; |
| 1476 | } |
| 1477 | symbols = bfd_get_outsymbols (is->the_bfd); |
| 1478 | |
| 1479 | relocs = xmalloc ((size_t) relsize); |
| 1480 | nrelocs = bfd_canonicalize_reloc (is->the_bfd, sec, |
| 1481 | relocs, symbols); |
| 1482 | if (nrelocs < 0) |
| 1483 | { |
| 1484 | free (relocs); |
| 1485 | einfo (_("%X%P: unable to process relocs: %E\n")); |
| 1486 | return; |
| 1487 | } |
| 1488 | |
| 1489 | for (i = 0; i < nrelocs; i++) |
| 1490 | { |
| 1491 | struct bfd_symbol *s; |
| 1492 | struct bfd_link_hash_entry * blhe; |
| 1493 | const char *other_bfd_filename; |
| 1494 | char *n; |
| 1495 | |
| 1496 | s = (relocs[i]->sym_ptr_ptr)[0]; |
| 1497 | |
| 1498 | if (s->flags & BSF_LOCAL) |
| 1499 | continue; |
| 1500 | |
| 1501 | /* Thunk section with reloc to another bfd. */ |
| 1502 | blhe = bfd_link_hash_lookup (link_info.hash, |
| 1503 | s->name, |
| 1504 | FALSE, FALSE, TRUE); |
| 1505 | |
| 1506 | if (blhe == NULL |
| 1507 | || blhe->type != bfd_link_hash_defined) |
| 1508 | continue; |
| 1509 | |
| 1510 | other_bfd_filename |
| 1511 | = blhe->u.def.section->owner->my_archive |
| 1512 | ? bfd_get_filename (blhe->u.def.section->owner->my_archive) |
| 1513 | : bfd_get_filename (blhe->u.def.section->owner); |
| 1514 | |
| 1515 | if (filename_cmp (bfd_get_filename |
| 1516 | (is->the_bfd->my_archive), |
| 1517 | other_bfd_filename) == 0) |
| 1518 | continue; |
| 1519 | |
| 1520 | /* Rename this implib to match the other one. */ |
| 1521 | n = xmalloc (strlen (other_bfd_filename) + 1); |
| 1522 | strcpy (n, other_bfd_filename); |
| 1523 | bfd_set_filename (is->the_bfd->my_archive, n); |
| 1524 | } |
| 1525 | |
| 1526 | free (relocs); |
| 1527 | /* Note - we do not free the symbols, |
| 1528 | they are now cached in the BFD. */ |
| 1529 | } |
| 1530 | } |
| 1531 | } |
| 1532 | } |
| 1533 | } |
| 1534 | |
| 1535 | { |
| 1536 | int is_ms_arch = 0; |
| 1537 | bfd *cur_arch = 0; |
| 1538 | lang_input_statement_type *is2; |
| 1539 | lang_input_statement_type *is3; |
| 1540 | |
| 1541 | /* Careful - this is a shell script. Watch those dollar signs! */ |
| 1542 | /* Microsoft import libraries have every member named the same, |
| 1543 | and not in the right order for us to link them correctly. We |
| 1544 | must detect these and rename the members so that they'll link |
| 1545 | correctly. There are three types of objects: the head, the |
| 1546 | thunks, and the sentinel(s). The head is easy; it's the one |
| 1547 | with idata2. We assume that the sentinels won't have relocs, |
| 1548 | and the thunks will. It's easier than checking the symbol |
| 1549 | table for external references. */ |
| 1550 | LANG_FOR_EACH_INPUT_STATEMENT (is) |
| 1551 | { |
| 1552 | if (is->the_bfd->my_archive) |
| 1553 | { |
| 1554 | char *pnt; |
| 1555 | bfd *arch = is->the_bfd->my_archive; |
| 1556 | |
| 1557 | if (cur_arch != arch) |
| 1558 | { |
| 1559 | cur_arch = arch; |
| 1560 | is_ms_arch = 1; |
| 1561 | |
| 1562 | for (is3 = is; |
| 1563 | is3 && is3->the_bfd->my_archive == arch; |
| 1564 | is3 = (lang_input_statement_type *) is3->next) |
| 1565 | { |
| 1566 | /* A MS dynamic import library can also contain static |
| 1567 | members, so look for the first element with a .dll |
| 1568 | extension, and use that for the remainder of the |
| 1569 | comparisons. */ |
| 1570 | pnt = strrchr (is3->the_bfd->filename, '.'); |
| 1571 | if (pnt != NULL && filename_cmp (pnt, ".dll") == 0) |
| 1572 | break; |
| 1573 | } |
| 1574 | |
| 1575 | if (is3 == NULL) |
| 1576 | is_ms_arch = 0; |
| 1577 | else |
| 1578 | { |
| 1579 | /* OK, found one. Now look to see if the remaining |
| 1580 | (dynamic import) members use the same name. */ |
| 1581 | for (is2 = is; |
| 1582 | is2 && is2->the_bfd->my_archive == arch; |
| 1583 | is2 = (lang_input_statement_type *) is2->next) |
| 1584 | { |
| 1585 | /* Skip static members, ie anything with a .obj |
| 1586 | extension. */ |
| 1587 | pnt = strrchr (is2->the_bfd->filename, '.'); |
| 1588 | if (pnt != NULL && filename_cmp (pnt, ".obj") == 0) |
| 1589 | continue; |
| 1590 | |
| 1591 | if (filename_cmp (is3->the_bfd->filename, |
| 1592 | is2->the_bfd->filename)) |
| 1593 | { |
| 1594 | is_ms_arch = 0; |
| 1595 | break; |
| 1596 | } |
| 1597 | } |
| 1598 | } |
| 1599 | } |
| 1600 | |
| 1601 | /* This fragment might have come from an .obj file in a Microsoft |
| 1602 | import, and not an actual import record. If this is the case, |
| 1603 | then leave the filename alone. */ |
| 1604 | pnt = strrchr (is->the_bfd->filename, '.'); |
| 1605 | |
| 1606 | if (is_ms_arch && (filename_cmp (pnt, ".dll") == 0)) |
| 1607 | { |
| 1608 | int idata2 = 0, reloc_count=0; |
| 1609 | asection *sec; |
| 1610 | char *new_name, seq; |
| 1611 | |
| 1612 | for (sec = is->the_bfd->sections; sec; sec = sec->next) |
| 1613 | { |
| 1614 | if (strcmp (sec->name, ".idata\$2") == 0) |
| 1615 | idata2 = 1; |
| 1616 | reloc_count += sec->reloc_count; |
| 1617 | } |
| 1618 | |
| 1619 | if (idata2) /* .idata2 is the TOC */ |
| 1620 | seq = 'a'; |
| 1621 | else if (reloc_count > 0) /* thunks */ |
| 1622 | seq = 'b'; |
| 1623 | else /* sentinel */ |
| 1624 | seq = 'c'; |
| 1625 | |
| 1626 | new_name = xmalloc (strlen (is->the_bfd->filename) + 3); |
| 1627 | sprintf (new_name, "%s.%c", is->the_bfd->filename, seq); |
| 1628 | bfd_set_filename (is->the_bfd, new_name); |
| 1629 | |
| 1630 | new_name = xmalloc (strlen (is->filename) + 3); |
| 1631 | sprintf (new_name, "%s.%c", is->filename, seq); |
| 1632 | is->filename = new_name; |
| 1633 | } |
| 1634 | } |
| 1635 | } |
| 1636 | } |
| 1637 | } |
| 1638 | \f |
| 1639 | static void |
| 1640 | gld_${EMULATION_NAME}_before_allocation (void) |
| 1641 | { |
| 1642 | is_underscoring (); |
| 1643 | before_allocation_default (); |
| 1644 | } |
| 1645 | \f |
| 1646 | #ifdef DLL_SUPPORT |
| 1647 | /* This is called when an input file isn't recognized as a BFD. We |
| 1648 | check here for .DEF files and pull them in automatically. */ |
| 1649 | |
| 1650 | static int |
| 1651 | saw_option (char *option) |
| 1652 | { |
| 1653 | int i; |
| 1654 | |
| 1655 | is_underscoring (); |
| 1656 | |
| 1657 | for (i = 0; init[i].ptr; i++) |
| 1658 | if (strcmp (GET_INIT_SYMBOL_NAME (i), option) == 0) |
| 1659 | return init[i].inited; |
| 1660 | return 0; |
| 1661 | } |
| 1662 | #endif /* DLL_SUPPORT */ |
| 1663 | |
| 1664 | static bfd_boolean |
| 1665 | gld_${EMULATION_NAME}_unrecognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED) |
| 1666 | { |
| 1667 | #ifdef DLL_SUPPORT |
| 1668 | const char *ext = entry->filename + strlen (entry->filename) - 4; |
| 1669 | |
| 1670 | if (filename_cmp (ext, ".def") == 0 || filename_cmp (ext, ".DEF") == 0) |
| 1671 | { |
| 1672 | pep_def_file = def_file_parse (entry->filename, pep_def_file); |
| 1673 | |
| 1674 | if (pep_def_file) |
| 1675 | { |
| 1676 | int i, buflen=0, len; |
| 1677 | char *buf; |
| 1678 | |
| 1679 | for (i = 0; i < pep_def_file->num_exports; i++) |
| 1680 | { |
| 1681 | len = strlen (pep_def_file->exports[i].internal_name); |
| 1682 | if (buflen < len + 2) |
| 1683 | buflen = len + 2; |
| 1684 | } |
| 1685 | |
| 1686 | buf = xmalloc (buflen); |
| 1687 | |
| 1688 | for (i = 0; i < pep_def_file->num_exports; i++) |
| 1689 | { |
| 1690 | struct bfd_link_hash_entry *h; |
| 1691 | |
| 1692 | sprintf (buf, "%s%s", U (""), |
| 1693 | pep_def_file->exports[i].internal_name); |
| 1694 | |
| 1695 | h = bfd_link_hash_lookup (link_info.hash, buf, TRUE, TRUE, TRUE); |
| 1696 | if (h == (struct bfd_link_hash_entry *) NULL) |
| 1697 | einfo (_("%F%P: bfd_link_hash_lookup failed: %E\n")); |
| 1698 | if (h->type == bfd_link_hash_new) |
| 1699 | { |
| 1700 | h->type = bfd_link_hash_undefined; |
| 1701 | h->u.undef.abfd = NULL; |
| 1702 | bfd_link_add_undef (link_info.hash, h); |
| 1703 | } |
| 1704 | } |
| 1705 | free (buf); |
| 1706 | |
| 1707 | /* def_file_print (stdout, pep_def_file); */ |
| 1708 | if (pep_def_file->is_dll == 1) |
| 1709 | link_info.type = type_dll; |
| 1710 | |
| 1711 | if (pep_def_file->base_address != (bfd_vma)(-1)) |
| 1712 | { |
| 1713 | pep.ImageBase |
| 1714 | = pe_data (link_info.output_bfd)->pe_opthdr.ImageBase |
| 1715 | = init[IMAGEBASEOFF].value |
| 1716 | = pep_def_file->base_address; |
| 1717 | init[IMAGEBASEOFF].inited = 1; |
| 1718 | if (image_base_statement) |
| 1719 | image_base_statement->exp |
| 1720 | = exp_assign ("__image_base__", exp_intop (pep.ImageBase), |
| 1721 | FALSE); |
| 1722 | } |
| 1723 | |
| 1724 | if (pep_def_file->stack_reserve != -1 |
| 1725 | && ! saw_option ("__size_of_stack_reserve__")) |
| 1726 | { |
| 1727 | pep.SizeOfStackReserve = pep_def_file->stack_reserve; |
| 1728 | if (pep_def_file->stack_commit != -1) |
| 1729 | pep.SizeOfStackCommit = pep_def_file->stack_commit; |
| 1730 | } |
| 1731 | if (pep_def_file->heap_reserve != -1 |
| 1732 | && ! saw_option ("__size_of_heap_reserve__")) |
| 1733 | { |
| 1734 | pep.SizeOfHeapReserve = pep_def_file->heap_reserve; |
| 1735 | if (pep_def_file->heap_commit != -1) |
| 1736 | pep.SizeOfHeapCommit = pep_def_file->heap_commit; |
| 1737 | } |
| 1738 | return TRUE; |
| 1739 | } |
| 1740 | } |
| 1741 | #endif |
| 1742 | return FALSE; |
| 1743 | } |
| 1744 | |
| 1745 | static bfd_boolean |
| 1746 | gld_${EMULATION_NAME}_recognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED) |
| 1747 | { |
| 1748 | is_underscoring (); |
| 1749 | #ifdef DLL_SUPPORT |
| 1750 | #ifdef TARGET_IS_i386pep |
| 1751 | pep_dll_id_target ("pei-x86-64"); |
| 1752 | #endif |
| 1753 | if (pep_bfd_is_dll (entry->the_bfd)) |
| 1754 | return pep_implied_import_dll (entry->filename); |
| 1755 | #endif |
| 1756 | return FALSE; |
| 1757 | } |
| 1758 | |
| 1759 | static void |
| 1760 | gld_${EMULATION_NAME}_finish (void) |
| 1761 | { |
| 1762 | is_underscoring (); |
| 1763 | finish_default (); |
| 1764 | |
| 1765 | #ifdef DLL_SUPPORT |
| 1766 | if (bfd_link_pic (&link_info) |
| 1767 | || pep_dll_enable_reloc_section |
| 1768 | || (!bfd_link_relocatable (&link_info) |
| 1769 | && pep_def_file->num_exports != 0)) |
| 1770 | { |
| 1771 | pep_dll_fill_sections (link_info.output_bfd, &link_info); |
| 1772 | if (command_line.out_implib_filename) |
| 1773 | pep_dll_generate_implib (pep_def_file, |
| 1774 | command_line.out_implib_filename, &link_info); |
| 1775 | } |
| 1776 | |
| 1777 | if (pep_out_def_filename) |
| 1778 | pep_dll_generate_def_file (pep_out_def_filename); |
| 1779 | #endif /* DLL_SUPPORT */ |
| 1780 | |
| 1781 | /* I don't know where .idata gets set as code, but it shouldn't be. */ |
| 1782 | { |
| 1783 | asection *asec = bfd_get_section_by_name (link_info.output_bfd, ".idata"); |
| 1784 | |
| 1785 | if (asec) |
| 1786 | { |
| 1787 | asec->flags &= ~SEC_CODE; |
| 1788 | asec->flags |= SEC_DATA; |
| 1789 | } |
| 1790 | } |
| 1791 | } |
| 1792 | |
| 1793 | \f |
| 1794 | /* Place an orphan section. |
| 1795 | |
| 1796 | We use this to put sections in a reasonable place in the file, and |
| 1797 | to ensure that they are aligned as required. |
| 1798 | |
| 1799 | We handle grouped sections here as well. A section named .foo\$nn |
| 1800 | goes into the output section .foo. All grouped sections are sorted |
| 1801 | by name. |
| 1802 | |
| 1803 | Grouped sections for the default sections are handled by the |
| 1804 | default linker script using wildcards, and are sorted by |
| 1805 | sort_sections. */ |
| 1806 | |
| 1807 | static lang_output_section_statement_type * |
| 1808 | gld_${EMULATION_NAME}_place_orphan (asection *s, |
| 1809 | const char *secname, |
| 1810 | int constraint) |
| 1811 | { |
| 1812 | const char *orig_secname = secname; |
| 1813 | char *dollar = NULL; |
| 1814 | lang_output_section_statement_type *os; |
| 1815 | lang_statement_list_type add_child; |
| 1816 | lang_output_section_statement_type *match_by_name = NULL; |
| 1817 | lang_statement_union_type **pl; |
| 1818 | |
| 1819 | /* Look through the script to see where to place this section. */ |
| 1820 | if (!bfd_link_relocatable (&link_info) |
| 1821 | && (dollar = strchr (secname, '\$')) != NULL) |
| 1822 | { |
| 1823 | size_t len = dollar - secname; |
| 1824 | char *newname = xmalloc (len + 1); |
| 1825 | memcpy (newname, secname, len); |
| 1826 | newname[len] = '\0'; |
| 1827 | secname = newname; |
| 1828 | } |
| 1829 | |
| 1830 | lang_list_init (&add_child); |
| 1831 | |
| 1832 | os = NULL; |
| 1833 | if (constraint == 0) |
| 1834 | for (os = lang_output_section_find (secname); |
| 1835 | os != NULL; |
| 1836 | os = next_matching_output_section_statement (os, 0)) |
| 1837 | { |
| 1838 | /* If we don't match an existing output section, tell |
| 1839 | lang_insert_orphan to create a new output section. */ |
| 1840 | constraint = SPECIAL; |
| 1841 | |
| 1842 | if (os->bfd_section != NULL |
| 1843 | && (os->bfd_section->flags == 0 |
| 1844 | || ((s->flags ^ os->bfd_section->flags) |
| 1845 | & (SEC_LOAD | SEC_ALLOC)) == 0)) |
| 1846 | { |
| 1847 | /* We already have an output section statement with this |
| 1848 | name, and its bfd section has compatible flags. |
| 1849 | If the section already exists but does not have any flags set, |
| 1850 | then it has been created by the linker, probably as a result of |
| 1851 | a --section-start command line switch. */ |
| 1852 | lang_add_section (&add_child, s, NULL, os); |
| 1853 | break; |
| 1854 | } |
| 1855 | |
| 1856 | /* Save unused output sections in case we can match them |
| 1857 | against orphans later. */ |
| 1858 | if (os->bfd_section == NULL) |
| 1859 | match_by_name = os; |
| 1860 | } |
| 1861 | |
| 1862 | /* If we didn't match an active output section, see if we matched an |
| 1863 | unused one and use that. */ |
| 1864 | if (os == NULL && match_by_name) |
| 1865 | { |
| 1866 | lang_add_section (&match_by_name->children, s, NULL, match_by_name); |
| 1867 | return match_by_name; |
| 1868 | } |
| 1869 | |
| 1870 | if (os == NULL) |
| 1871 | { |
| 1872 | static struct orphan_save hold[] = |
| 1873 | { |
| 1874 | { ".text", |
| 1875 | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE, |
| 1876 | 0, 0, 0, 0 }, |
| 1877 | { ".idata", |
| 1878 | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA, |
| 1879 | 0, 0, 0, 0 }, |
| 1880 | { ".rdata", |
| 1881 | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA, |
| 1882 | 0, 0, 0, 0 }, |
| 1883 | { ".data", |
| 1884 | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA, |
| 1885 | 0, 0, 0, 0 }, |
| 1886 | { ".bss", |
| 1887 | SEC_ALLOC, |
| 1888 | 0, 0, 0, 0 } |
| 1889 | }; |
| 1890 | enum orphan_save_index |
| 1891 | { |
| 1892 | orphan_text = 0, |
| 1893 | orphan_idata, |
| 1894 | orphan_rodata, |
| 1895 | orphan_data, |
| 1896 | orphan_bss |
| 1897 | }; |
| 1898 | static int orphan_init_done = 0; |
| 1899 | struct orphan_save *place; |
| 1900 | lang_output_section_statement_type *after; |
| 1901 | etree_type *address; |
| 1902 | flagword flags; |
| 1903 | asection *nexts; |
| 1904 | |
| 1905 | if (!orphan_init_done) |
| 1906 | { |
| 1907 | struct orphan_save *ho; |
| 1908 | for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho) |
| 1909 | if (ho->name != NULL) |
| 1910 | { |
| 1911 | ho->os = lang_output_section_find (ho->name); |
| 1912 | if (ho->os != NULL && ho->os->flags == 0) |
| 1913 | ho->os->flags = ho->flags; |
| 1914 | } |
| 1915 | orphan_init_done = 1; |
| 1916 | } |
| 1917 | |
| 1918 | flags = s->flags; |
| 1919 | if (!bfd_link_relocatable (&link_info)) |
| 1920 | { |
| 1921 | nexts = s; |
| 1922 | while ((nexts = bfd_get_next_section_by_name (nexts->owner, |
| 1923 | nexts))) |
| 1924 | if (nexts->output_section == NULL |
| 1925 | && (nexts->flags & SEC_EXCLUDE) == 0 |
| 1926 | && ((nexts->flags ^ flags) & (SEC_LOAD | SEC_ALLOC)) == 0 |
| 1927 | && (nexts->owner->flags & DYNAMIC) == 0 |
| 1928 | && !bfd_input_just_syms (nexts->owner)) |
| 1929 | flags = (((flags ^ SEC_READONLY) |
| 1930 | | (nexts->flags ^ SEC_READONLY)) |
| 1931 | ^ SEC_READONLY); |
| 1932 | } |
| 1933 | |
| 1934 | /* Try to put the new output section in a reasonable place based |
| 1935 | on the section name and section flags. */ |
| 1936 | |
| 1937 | place = NULL; |
| 1938 | if ((flags & SEC_ALLOC) == 0) |
| 1939 | ; |
| 1940 | else if ((flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) |
| 1941 | place = &hold[orphan_bss]; |
| 1942 | else if ((flags & SEC_READONLY) == 0) |
| 1943 | place = &hold[orphan_data]; |
| 1944 | else if ((flags & SEC_CODE) == 0) |
| 1945 | { |
| 1946 | place = (!strncmp (secname, ".idata\$", 7) ? &hold[orphan_idata] |
| 1947 | : &hold[orphan_rodata]); |
| 1948 | } |
| 1949 | else |
| 1950 | place = &hold[orphan_text]; |
| 1951 | |
| 1952 | after = NULL; |
| 1953 | if (place != NULL) |
| 1954 | { |
| 1955 | if (place->os == NULL) |
| 1956 | place->os = lang_output_section_find (place->name); |
| 1957 | after = place->os; |
| 1958 | if (after == NULL) |
| 1959 | after = lang_output_section_find_by_flags (s, flags, &place->os, |
| 1960 | NULL); |
| 1961 | if (after == NULL) |
| 1962 | /* *ABS* is always the first output section statement. */ |
| 1963 | after = (void *) lang_os_list.head; |
| 1964 | } |
| 1965 | |
| 1966 | /* All sections in an executable must be aligned to a page boundary. |
| 1967 | In a relocatable link, just preserve the incoming alignment; the |
| 1968 | address is discarded by lang_insert_orphan in that case, anyway. */ |
| 1969 | address = exp_unop (ALIGN_K, exp_nameop (NAME, "__section_alignment__")); |
| 1970 | os = lang_insert_orphan (s, secname, constraint, after, place, address, |
| 1971 | &add_child); |
| 1972 | if (bfd_link_relocatable (&link_info)) |
| 1973 | { |
| 1974 | os->section_alignment = exp_intop (1U << s->alignment_power); |
| 1975 | os->bfd_section->alignment_power = s->alignment_power; |
| 1976 | } |
| 1977 | } |
| 1978 | |
| 1979 | /* If the section name has a '\$', sort it with the other '\$' |
| 1980 | sections. */ |
| 1981 | for (pl = &os->children.head; *pl != NULL; pl = &(*pl)->header.next) |
| 1982 | { |
| 1983 | lang_input_section_type *ls; |
| 1984 | const char *lname; |
| 1985 | |
| 1986 | if ((*pl)->header.type != lang_input_section_enum) |
| 1987 | continue; |
| 1988 | |
| 1989 | ls = &(*pl)->input_section; |
| 1990 | |
| 1991 | lname = bfd_section_name (ls->section); |
| 1992 | if (strchr (lname, '\$') != NULL |
| 1993 | && (dollar == NULL || strcmp (orig_secname, lname) < 0)) |
| 1994 | break; |
| 1995 | } |
| 1996 | |
| 1997 | if (add_child.head != NULL) |
| 1998 | { |
| 1999 | *add_child.tail = *pl; |
| 2000 | *pl = add_child.head; |
| 2001 | } |
| 2002 | |
| 2003 | return os; |
| 2004 | } |
| 2005 | |
| 2006 | static bfd_boolean |
| 2007 | gld_${EMULATION_NAME}_open_dynamic_archive |
| 2008 | (const char *arch ATTRIBUTE_UNUSED, |
| 2009 | search_dirs_type *search, |
| 2010 | lang_input_statement_type *entry) |
| 2011 | { |
| 2012 | static const struct |
| 2013 | { |
| 2014 | const char * format; |
| 2015 | bfd_boolean use_prefix; |
| 2016 | } |
| 2017 | libname_fmt [] = |
| 2018 | { |
| 2019 | /* Preferred explicit import library for dll's. */ |
| 2020 | { "lib%s.dll.a", FALSE }, |
| 2021 | /* Alternate explicit import library for dll's. */ |
| 2022 | { "%s.dll.a", FALSE }, |
| 2023 | /* "libfoo.a" could be either an import lib or a static lib. |
| 2024 | For backwards compatibility, libfoo.a needs to precede |
| 2025 | libfoo.dll and foo.dll in the search. */ |
| 2026 | { "lib%s.a", FALSE }, |
| 2027 | /* The 'native' spelling of an import lib name is "foo.lib". */ |
| 2028 | { "%s.lib", FALSE }, |
| 2029 | /* PR 22948 - Check for an import library. */ |
| 2030 | { "lib%s.lib", FALSE }, |
| 2031 | #ifdef DLL_SUPPORT |
| 2032 | /* Try "<prefix>foo.dll" (preferred dll name, if specified). */ |
| 2033 | { "%s%s.dll", TRUE }, |
| 2034 | #endif |
| 2035 | /* Try "libfoo.dll" (default preferred dll name). */ |
| 2036 | { "lib%s.dll", FALSE }, |
| 2037 | /* Finally try 'native' dll name "foo.dll". */ |
| 2038 | { "%s.dll", FALSE }, |
| 2039 | /* Note: If adding more formats to this table, make sure to check to |
| 2040 | see if their length is longer than libname_fmt[0].format, and if |
| 2041 | so, update the call to xmalloc() below. */ |
| 2042 | { NULL, FALSE } |
| 2043 | }; |
| 2044 | static unsigned int format_max_len = 0; |
| 2045 | const char * filename; |
| 2046 | char * full_string; |
| 2047 | char * base_string; |
| 2048 | unsigned int i; |
| 2049 | |
| 2050 | |
| 2051 | if (! entry->flags.maybe_archive || entry->flags.full_name_provided) |
| 2052 | return FALSE; |
| 2053 | |
| 2054 | filename = entry->filename; |
| 2055 | |
| 2056 | if (format_max_len == 0) |
| 2057 | /* We need to allow space in the memory that we are going to allocate |
| 2058 | for the characters in the format string. Since the format array is |
| 2059 | static we only need to calculate this information once. In theory |
| 2060 | this value could also be computed statically, but this introduces |
| 2061 | the possibility for a discrepancy and hence a possible memory |
| 2062 | corruption. The lengths we compute here will be too long because |
| 2063 | they will include any formating characters (%s) in the strings, but |
| 2064 | this will not matter. */ |
| 2065 | for (i = 0; libname_fmt[i].format; i++) |
| 2066 | if (format_max_len < strlen (libname_fmt[i].format)) |
| 2067 | format_max_len = strlen (libname_fmt[i].format); |
| 2068 | |
| 2069 | full_string = xmalloc (strlen (search->name) |
| 2070 | + strlen (filename) |
| 2071 | + format_max_len |
| 2072 | #ifdef DLL_SUPPORT |
| 2073 | + (pep_dll_search_prefix |
| 2074 | ? strlen (pep_dll_search_prefix) : 0) |
| 2075 | #endif |
| 2076 | /* Allow for the terminating NUL and for the path |
| 2077 | separator character that is inserted between |
| 2078 | search->name and the start of the format string. */ |
| 2079 | + 2); |
| 2080 | |
| 2081 | sprintf (full_string, "%s/", search->name); |
| 2082 | base_string = full_string + strlen (full_string); |
| 2083 | |
| 2084 | for (i = 0; libname_fmt[i].format; i++) |
| 2085 | { |
| 2086 | #ifdef DLL_SUPPORT |
| 2087 | if (libname_fmt[i].use_prefix) |
| 2088 | { |
| 2089 | if (!pep_dll_search_prefix) |
| 2090 | continue; |
| 2091 | sprintf (base_string, libname_fmt[i].format, pep_dll_search_prefix, filename); |
| 2092 | } |
| 2093 | else |
| 2094 | #endif |
| 2095 | sprintf (base_string, libname_fmt[i].format, filename); |
| 2096 | |
| 2097 | if (ldfile_try_open_bfd (full_string, entry)) |
| 2098 | break; |
| 2099 | } |
| 2100 | |
| 2101 | if (!libname_fmt[i].format) |
| 2102 | { |
| 2103 | free (full_string); |
| 2104 | return FALSE; |
| 2105 | } |
| 2106 | |
| 2107 | entry->filename = full_string; |
| 2108 | |
| 2109 | return TRUE; |
| 2110 | } |
| 2111 | |
| 2112 | static int |
| 2113 | gld_${EMULATION_NAME}_find_potential_libraries |
| 2114 | (char *name, lang_input_statement_type *entry) |
| 2115 | { |
| 2116 | return ldfile_open_file_search (name, entry, "", ".lib"); |
| 2117 | } |
| 2118 | \f |
| 2119 | static char * |
| 2120 | gld_${EMULATION_NAME}_get_script (int *isfile) |
| 2121 | EOF |
| 2122 | # Scripts compiled in. |
| 2123 | # sed commands to quote an ld script as a C string. |
| 2124 | sc="-f stringify.sed" |
| 2125 | |
| 2126 | fragment <<EOF |
| 2127 | { |
| 2128 | *isfile = 0; |
| 2129 | |
| 2130 | if (bfd_link_relocatable (&link_info) && config.build_constructors) |
| 2131 | return |
| 2132 | EOF |
| 2133 | sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c |
| 2134 | echo ' ; else if (bfd_link_relocatable (&link_info)) return' >> e${EMULATION_NAME}.c |
| 2135 | sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c |
| 2136 | echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c |
| 2137 | sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c |
| 2138 | echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c |
| 2139 | sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c |
| 2140 | if test -n "$GENERATE_AUTO_IMPORT_SCRIPT" ; then |
| 2141 | echo ' ; else if (link_info.pei386_auto_import == 1 && link_info.pei386_runtime_pseudo_reloc != 2) return' >> e${EMULATION_NAME}.c |
| 2142 | sed $sc ldscripts/${EMULATION_NAME}.xa >> e${EMULATION_NAME}.c |
| 2143 | fi |
| 2144 | echo ' ; else return' >> e${EMULATION_NAME}.c |
| 2145 | sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c |
| 2146 | echo '; }' >> e${EMULATION_NAME}.c |
| 2147 | |
| 2148 | fragment <<EOF |
| 2149 | |
| 2150 | |
| 2151 | struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation = |
| 2152 | { |
| 2153 | gld_${EMULATION_NAME}_before_parse, |
| 2154 | syslib_default, |
| 2155 | hll_default, |
| 2156 | gld_${EMULATION_NAME}_after_parse, |
| 2157 | gld_${EMULATION_NAME}_after_open, |
| 2158 | after_check_relocs_default, |
| 2159 | before_place_orphans_default, |
| 2160 | after_allocation_default, |
| 2161 | set_output_arch_default, |
| 2162 | ldemul_default_target, |
| 2163 | gld_${EMULATION_NAME}_before_allocation, |
| 2164 | gld_${EMULATION_NAME}_get_script, |
| 2165 | "${EMULATION_NAME}", |
| 2166 | "${OUTPUT_FORMAT}", |
| 2167 | gld_${EMULATION_NAME}_finish, |
| 2168 | NULL, /* Create output section statements. */ |
| 2169 | gld_${EMULATION_NAME}_open_dynamic_archive, |
| 2170 | gld_${EMULATION_NAME}_place_orphan, |
| 2171 | gld_${EMULATION_NAME}_set_symbols, |
| 2172 | NULL, /* parse_args */ |
| 2173 | gld${EMULATION_NAME}_add_options, |
| 2174 | gld${EMULATION_NAME}_handle_option, |
| 2175 | gld_${EMULATION_NAME}_unrecognized_file, |
| 2176 | gld_${EMULATION_NAME}_list_options, |
| 2177 | gld_${EMULATION_NAME}_recognized_file, |
| 2178 | gld_${EMULATION_NAME}_find_potential_libraries, |
| 2179 | NULL, /* new_vers_pattern. */ |
| 2180 | NULL, /* extra_map_file_text */ |
| 2181 | ${LDEMUL_EMIT_CTF_EARLY-NULL}, |
| 2182 | ${LDEMUL_EXAMINE_STRTAB_FOR_CTF-NULL} |
| 2183 | }; |
| 2184 | EOF |