X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=ld%2Femultempl%2Fpep.em;h=b24a60820237ba3d65935924949b7f474ad2e1e1;hb=0cdcdbf8dbadc70194d46b4c3400ba8cc2a10fc0;hp=f6f802e12e2068f2165c684338ee0b83b502845b;hpb=ce11ba6c9d65f4606431e5d73986ad87e3ee9583;p=deliverable%2Fbinutils-gdb.git diff --git a/ld/emultempl/pep.em b/ld/emultempl/pep.em index f6f802e12e..b24a608202 100644 --- a/ld/emultempl/pep.em +++ b/ld/emultempl/pep.em @@ -1,15 +1,24 @@ # This shell script emits a C file. -*- C -*- # It does some substitutions. -test -z "${ENTRY}" && ENTRY="_mainCRTStartup" if [ -z "$MACHINE" ]; then OUTPUT_ARCH=${ARCH} else OUTPUT_ARCH=${ARCH}:${MACHINE} fi + +case ${target} in + *-*-cygwin*) + move_default_addr_high=1 + ;; + *) + move_default_addr_high=0; + ;; +esac + rm -f e${EMULATION_NAME}.c (echo;echo;echo;echo;echo)>e${EMULATION_NAME}.c # there, now line numbers match ;-) fragment < Set size of the initial stack\n")); fprintf (file, _(" --subsystem [:] Set required OS subsystem [& version]\n")); fprintf (file, _(" --support-old-code Support interworking with old code\n")); + fprintf (file, _(" --[no-]leading-underscore Set explicit symbol underscore prefix mode\n")); + fprintf (file, _(" --[no-]insert-timestamp Use a real timestamp rather than zero. (default)\n")); + fprintf (file, _(" This makes binaries non-deterministic\n")); #ifdef DLL_SUPPORT fprintf (file, _(" --add-stdcall-alias Export symbols with and without @nn\n")); fprintf (file, _(" --disable-stdcall-fixup Don't link _sym to _sym@nn\n")); fprintf (file, _(" --enable-stdcall-fixup Link _sym to _sym@nn without warnings\n")); fprintf (file, _(" --exclude-symbols sym,sym,... Exclude symbols from automatic export\n")); + fprintf (file, _(" --exclude-all-symbols Exclude all symbols from automatic export\n")); fprintf (file, _(" --exclude-libs lib,lib,... Exclude libraries from automatic export\n")); fprintf (file, _(" --exclude-modules-for-implib mod,mod,...\n")); fprintf (file, _(" Exclude objects, archive members from auto\n")); @@ -328,7 +438,7 @@ gld_${EMULATION_NAME}_list_options (FILE *file) fprintf (file, _(" --dll-search-prefix= When linking dynamically to a dll without\n\ an importlib, use .dll\n\ in preference to lib.dll \n")); - fprintf (file, _(" --enable-auto-import Do sophistcated linking of _sym to\n\ + fprintf (file, _(" --enable-auto-import Do sophisticated linking of _sym to\n\ __imp_sym for DATA references\n")); fprintf (file, _(" --disable-auto-import Do not auto-import DATA items from DLLs\n")); fprintf (file, _(" --enable-runtime-pseudo-reloc Work around auto-import limitations by\n\ @@ -338,6 +448,23 @@ gld_${EMULATION_NAME}_list_options (FILE *file) auto-imported DATA.\n")); fprintf (file, _(" --enable-extra-pep-debug Enable verbose debug output when building\n\ or linking to DLLs (esp. auto-import)\n")); + fprintf (file, _(" --enable-long-section-names Use long COFF section names even in\n\ + executable image files\n")); + fprintf (file, _(" --disable-long-section-names Never use long COFF section names, even\n\ + in object files\n")); + fprintf (file, _(" --high-entropy-va Image is compatible with 64-bit address space\n\ + layout randomization (ASLR)\n")); + fprintf (file, _(" --dynamicbase Image base address may be relocated using\n\ + address space layout randomization (ASLR)\n")); + fprintf (file, _(" --forceinteg Code integrity checks are enforced\n")); + fprintf (file, _(" --nxcompat Image is compatible with data execution prevention\n")); + fprintf (file, _(" --no-isolation Image understands isolation but do not isolate the image\n")); + fprintf (file, _(" --no-seh Image does not use SEH. No SE handler may\n\ + be called in this image\n")); + fprintf (file, _(" --no-bind Do not bind this image\n")); + fprintf (file, _(" --wdmdriver Driver uses the WDM model\n")); + fprintf (file, _(" --tsaware Image is Terminal Server aware\n")); + fprintf (file, _(" --build-id[=STYLE] Generate build ID\n")); #endif } @@ -346,52 +473,108 @@ static void set_pep_name (char *name, bfd_vma val) { int i; - + is_underscoring (); /* Find the name and set it. */ for (i = 0; init[i].ptr; i++) { - if (strcmp (name, init[i].symbol) == 0) + if (strcmp (name, GET_INIT_SYMBOL_NAME (i)) == 0) { init[i].value = val; init[i].inited = 1; if (strcmp (name,"__image_base__") == 0) - set_pep_name ("___ImageBase", val); + set_pep_name (U ("__ImageBase"), val); return; } } abort (); } +static void +set_entry_point (void) +{ + const char *entry; + const char *initial_symbol_char; + int i; + + static const struct + { + const int value; + const char *entry; + } + v[] = + { + { 1, "NtProcessStartup" }, + { 2, "WinMainCRTStartup" }, + { 3, "mainCRTStartup" }, + { 7, "__PosixProcessStartup" }, + { 9, "WinMainCRTStartup" }, + {14, "mainCRTStartup" }, + { 0, NULL } + }; + + /* Entry point name for arbitrary subsystem numbers. */ + static const char default_entry[] = "mainCRTStartup"; + + if (link_info.shared || dll) + { + entry = "DllMainCRTStartup"; + } + else + { + for (i = 0; v[i].entry; i++) + if (v[i].value == pep_subsystem) + break; + + /* If no match, use the default. */ + if (v[i].entry != NULL) + entry = v[i].entry; + else + entry = default_entry; + } + + /* Now we check target's default for getting proper symbol_char. */ + initial_symbol_char = (is_underscoring () != 0 ? "_" : ""); + + if (*initial_symbol_char != '\0') + { + char *alc_entry; + + /* lang_default_entry expects its argument to be permanently + allocated, so we don't free this string. */ + alc_entry = xmalloc (strlen (initial_symbol_char) + + strlen (entry) + + 1); + strcpy (alc_entry, initial_symbol_char); + strcat (alc_entry, entry); + entry = alc_entry; + } + + lang_default_entry (entry); +} static void set_pep_subsystem (void) { const char *sver; - const char *entry; - const char *initial_symbol_char; char *end; int len; int i; - int subsystem; unsigned long temp_subsystem; static const struct { const char *name; const int value; - const char *entry; } v[] = { - { "native", 1, "NtProcessStartup" }, - { "windows", 2, "WinMainCRTStartup" }, - { "console", 3, "mainCRTStartup" }, - { "posix", 7, "__PosixProcessStartup"}, - { "wince", 9, "_WinMainCRTStartup" }, - { "xbox", 14, "mainCRTStartup" }, - { NULL, 0, NULL } + { "native", 1 }, + { "windows", 2 }, + { "console", 3 }, + { "posix", 7 }, + { "wince", 9 }, + { "xbox", 14 }, + { NULL, 0 } }; - /* Entry point name for arbitrary subsystem numbers. */ - static const char default_entry[] = "mainCRTStartup"; /* Check for the presence of a version number. */ sver = strchr (optarg, ':'); @@ -418,14 +601,8 @@ set_pep_subsystem (void) if (v[i].value == (int) temp_subsystem) break; - /* If no match, use the default. */ - if (v[i].name != NULL) - entry = v[i].entry; - else - entry = default_entry; - /* Use this subsystem. */ - subsystem = (int) temp_subsystem; + pep_subsystem = (int) temp_subsystem; } else { @@ -441,28 +618,10 @@ set_pep_subsystem (void) return; } - entry = v[i].entry; - subsystem = v[i].value; - } - - set_pep_name ("__subsystem__", subsystem); - - initial_symbol_char = ${INITIAL_SYMBOL_CHAR}; - if (*initial_symbol_char != '\0') - { - char *alc_entry; - - /* lang_default_entry expects its argument to be permanently - allocated, so we don't free this string. */ - alc_entry = xmalloc (strlen (initial_symbol_char) - + strlen (entry) - + 1); - strcpy (alc_entry, initial_symbol_char); - strcat (alc_entry, entry); - entry = alc_entry; + pep_subsystem = v[i].value; } - lang_default_entry (entry); + set_pep_name ("__subsystem__", pep_subsystem); return; } @@ -496,10 +655,12 @@ set_pep_stack_heap (char *resname, char *comname) einfo (_("%P%F: strange hex info for PE parameter '%s'\n"), optarg); } +#define DEFAULT_BUILD_ID_STYLE "md5" static bfd_boolean gld${EMULATION_NAME}_handle_option (int optc) { + is_underscoring (); switch (optc) { default: @@ -508,12 +669,7 @@ gld${EMULATION_NAME}_handle_option (int optc) case OPTION_BASE_FILE: link_info.base_file = fopen (optarg, FOPEN_WB); if (link_info.base_file == NULL) - { - /* xgettext:c-format */ - fprintf (stderr, _("%s: Can't open base file %s\n"), - program_name, optarg); - xexit (1); - } + einfo (_("%F%P: cannot open base file %s\n"), optarg); break; /* PE options. */ @@ -562,6 +718,18 @@ gld${EMULATION_NAME}_handle_option (int optc) case OPTION_USE_NUL_PREFIXED_IMPORT_TABLES: pep_use_nul_prefixed_import_tables = TRUE; break; + case OPTION_NO_LEADING_UNDERSCORE: + pep_leading_underscore = 0; + break; + case OPTION_LEADING_UNDERSCORE: + pep_leading_underscore = 1; + break; + case OPTION_INSERT_TIMESTAMP: + insert_timestamp = TRUE; + break; + case OPTION_NO_INSERT_TIMESTAMP: + insert_timestamp = FALSE; + break; #ifdef DLL_SUPPORT case OPTION_OUT_DEF: pep_out_def_filename = xstrdup (optarg); @@ -572,6 +740,9 @@ gld${EMULATION_NAME}_handle_option (int optc) case OPTION_EXCLUDE_SYMBOLS: pep_dll_add_excludes (optarg, EXCLUDESYMS); break; + case OPTION_EXCLUDE_ALL_SYMBOLS: + pep_dll_exclude_all_symbols = 1; + break; case OPTION_EXCLUDE_LIBS: pep_dll_add_excludes (optarg, EXCLUDELIBS); break; @@ -623,9 +794,6 @@ gld${EMULATION_NAME}_handle_option (int optc) case OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC: link_info.pei386_runtime_pseudo_reloc = 0; break; - case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1: - link_info.pei386_runtime_pseudo_reloc = 1; - break; case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2: link_info.pei386_runtime_pseudo_reloc = 2; break; @@ -633,7 +801,56 @@ gld${EMULATION_NAME}_handle_option (int optc) pep_dll_extra_pe_debug = 1; break; #endif + case OPTION_ENABLE_LONG_SECTION_NAMES: + pep_use_coff_long_section_names = 1; + break; + case OPTION_DISABLE_LONG_SECTION_NAMES: + pep_use_coff_long_section_names = 0; + break; + /* Get DLLCharacteristics bits */ + case OPTION_HIGH_ENTROPY_VA: + pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_HIGH_ENTROPY_VA; + break; + case OPTION_DYNAMIC_BASE: + pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_DYNAMIC_BASE; + break; + case OPTION_FORCE_INTEGRITY: + pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_FORCE_INTEGRITY; + break; + case OPTION_NX_COMPAT: + pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_NX_COMPAT; + break; + case OPTION_NO_ISOLATION: + pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_ISOLATION; + break; + case OPTION_NO_SEH: + pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_SEH; + break; + case OPTION_NO_BIND: + pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_BIND; + break; + case OPTION_WDM_DRIVER: + pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_WDM_DRIVER; + break; + case OPTION_TERMINAL_SERVER_AWARE: + pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE; + break; + case OPTION_BUILD_ID: + if (emit_build_id != NULL) + { + free ((char *) emit_build_id); + emit_build_id = NULL; + } + if (optarg == NULL) + optarg = DEFAULT_BUILD_ID_STYLE; + if (strcmp (optarg, "none")) + emit_build_id = xstrdup (optarg); + break; } + + /* Set DLLCharacteristics bits */ + set_pep_name ("__dll_characteristics__", pe_dll_characteristics); + return TRUE; } @@ -668,7 +885,7 @@ static bfd_vma compute_dll_image_base (const char *ofile) { bfd_vma hash = (bfd_vma) strhash (ofile); - return 0x61300000 + ((hash << 16) & 0x0FFC0000); + return NT_DLL_AUTO_IMAGE_BASE + ((hash << 16) & NT_DLL_AUTO_IMAGE_MASK); } #endif @@ -681,22 +898,26 @@ gld_${EMULATION_NAME}_set_symbols (void) /* Run through and invent symbols for all the names and insert the defaults. */ int j; - lang_statement_list_type *save; + + is_underscoring (); if (!init[IMAGEBASEOFF].inited) { if (link_info.relocatable) init[IMAGEBASEOFF].value = 0; else if (init[DLLOFF].value || (link_info.shared && !link_info.pie)) + { #ifdef DLL_SUPPORT - init[IMAGEBASEOFF].value = (pep_enable_auto_image_base) ? - compute_dll_image_base (output_filename) : NT_DLL_IMAGE_BASE; + init[IMAGEBASEOFF].value = (pep_enable_auto_image_base + ? compute_dll_image_base (output_filename) + : NT_DLL_IMAGE_BASE); #else - init[IMAGEBASEOFF].value = NT_DLL_IMAGE_BASE; + init[IMAGEBASEOFF].value = NT_DLL_IMAGE_BASE; #endif + } else init[IMAGEBASEOFF].value = NT_EXE_IMAGE_BASE; - init[MSIMAGEBASEOFF].value = init[IMAGEBASEOFF].value; + init[MSIMAGEBASEOFF].value = init[IMAGEBASEOFF].value; } /* Don't do any symbol assignments if this is a relocatable link. */ @@ -704,16 +925,15 @@ gld_${EMULATION_NAME}_set_symbols (void) return; /* Glue the assignments into the abs section. */ - save = stat_ptr; - - stat_ptr = &(abs_output_section->children); + push_stat_ptr (&abs_output_section->children); for (j = 0; init[j].ptr; j++) { bfd_vma val = init[j].value; lang_assignment_statement_type *rv; - rv = lang_add_assignment (exp_assop ('=', init[j].symbol, - exp_intop (val))); + + rv = lang_add_assignment (exp_assign (GET_INIT_SYMBOL_NAME (j), + exp_intop (val), FALSE)); if (init[j].size == sizeof (short)) *(short *) init[j].ptr = (short) val; else if (init[j].size == sizeof (int)) @@ -728,7 +948,7 @@ gld_${EMULATION_NAME}_set_symbols (void) image_base_statement = rv; } /* Restore the pointer. */ - stat_ptr = save; + pop_stat_ptr (); if (pep.FileAlignment > pep.SectionAlignment) { @@ -742,21 +962,15 @@ gld_${EMULATION_NAME}_set_symbols (void) static void gld_${EMULATION_NAME}_after_parse (void) { - /* The Windows libraries are designed for the linker to treat the - entry point as an undefined symbol. Otherwise, the .obj that - defines mainCRTStartup is brought in because it is the first - encountered in libc.lib and it has other symbols in it which will - be pulled in by the link process. To avoid this, we act as - though the user specified -u with the entry point symbol. - - This function is called after the linker script and command line - options have been read, so at this point we know the right entry - point. This function is called before the input files are - opened, so registering the symbol as undefined will make a - difference. */ - - if (! link_info.relocatable && entry_symbol.name != NULL) - ldlang_add_undef (entry_symbol.name); + /* PR ld/6744: Warn the user if they have used an ELF-only + option hoping it will work on PE+. */ + if (link_info.export_dynamic) + einfo (_("%P: warning: --export-dynamic is not supported for PE+ " + "targets, did you mean --export-all-symbols?\n")); + + set_entry_point (); + + after_parse_default (); } /* pep-dll.c directly accesses pep_data_import_dll, @@ -774,10 +988,13 @@ pep_undef_cdecl_match (struct bfd_link_hash_entry *h, void *inf) { int sl; char *string = inf; + const char *hs = h->root.string; sl = strlen (string); if (h->type == bfd_link_hash_defined - && strncmp (h->root.string, string, sl) == 0 + && ((*hs == '@' && *string == '_' + && strncmp (hs + 1, string + 1, sl - 1) == 0) + || strncmp (hs, string, sl) == 0) && h->root.string[sl] == '@') { pep_undef_found_sym = h; @@ -800,15 +1017,19 @@ pep_fixup_stdcalls (void) { char* at = strchr (undef->root.string, '@'); int lead_at = (*undef->root.string == '@'); - /* For now, don't try to fixup fastcall symbols. */ - - if (at && !lead_at) + if (lead_at) + at = strchr (undef->root.string + 1, '@'); + if (at || lead_at) { /* The symbol is a stdcall symbol, so let's look for a cdecl symbol with the same name and resolve to that. */ - char *cname = xstrdup (undef->root.string /* + lead_at */); + char *cname = xstrdup (undef->root.string); + + if (lead_at) + *cname = '_'; at = strchr (cname, '@'); - *at = 0; + if (at) + *at = 0; sym = bfd_link_hash_lookup (link_info.hash, cname, 0, 0, 1); if (sym && sym->type == bfd_link_hash_defined) @@ -945,22 +1166,6 @@ pep_find_data_imports (void) asymbol **symbols; int nsyms, i; - if (link_info.pei386_auto_import == -1) - { - static bfd_boolean warned = FALSE; - - info_msg (_("Info: resolving %s by linking to %s (auto-import)\n"), - undef->root.string, buf); - - /* PR linker/4844. */ - if (! warned) - { - warned = TRUE; - einfo (_("%P: warning: auto-importing has been activated without --enable-auto-import specified on the command line.\n\ -This should work unless it involves constant data structures referencing symbols from auto-imported DLLs.\n")); - } - } - if (!bfd_generic_link_read_symbols (b)) { einfo (_("%B%F: could not read symbols: %E\n"), b); @@ -972,19 +1177,19 @@ This should work unless it involves constant data structures referencing symbols for (i = 0; i < nsyms; i++) { - if (! CONST_STRNEQ (symbols[i]->name, "__head_")) + if (! CONST_STRNEQ (symbols[i]->name, U ("_head_"))) continue; if (pep_dll_extra_pe_debug) printf ("->%s\n", symbols[i]->name); pep_data_import_dll = (char*) (symbols[i]->name + - sizeof ("__head_") - 1); + U_SIZE ("_head_") - 1); break; } pep_walk_relocs_of_symbol (&link_info, undef->root.string, - make_import_fixup); + make_import_fixup); /* Let's differentiate it somehow from defined. */ undef->type = bfd_link_hash_defweak; @@ -1002,17 +1207,190 @@ This should work unless it involves constant data structures referencing symbols static bfd_boolean pr_sym (struct bfd_hash_entry *h, void *inf ATTRIBUTE_UNUSED) { - if (pep_dll_extra_pe_debug) - printf ("+%s\n", h->string); + printf ("+%s\n", h->string); return TRUE; } #endif /* DLL_SUPPORT */ +static void +debug_section_p (bfd *abfd ATTRIBUTE_UNUSED, asection *sect, void *obj) +{ + int *found = (int *) obj; + + if (strncmp (".debug_", sect->name, sizeof (".debug_") - 1) == 0) + *found = 1; +} + +static bfd_boolean +pecoff_checksum_contents (bfd *abfd, + void (*process) (const void *, size_t, void *), + void *arg) +{ + file_ptr filepos = (file_ptr) 0; + + while (1) + { + unsigned char b; + int status; + + if (bfd_seek (abfd, filepos, SEEK_SET) != 0) + return 0; + + status = bfd_bread (&b, (bfd_size_type) 1, abfd); + if (status < 1) + { + break; + } + + (*process) (&b, 1, arg); + filepos += 1; + } + + return TRUE; +} + +static bfd_boolean +write_build_id (bfd *abfd) +{ + struct pe_tdata *t = pe_data (abfd); + asection *asec; + struct bfd_link_order *link_order = NULL; + unsigned char *contents; + bfd_size_type size; + bfd_size_type build_id_size; + unsigned char *build_id; + + /* Find the section the .buildid output section has been merged info. */ + for (asec = abfd->sections; asec != NULL; asec = asec->next) + { + struct bfd_link_order *l = NULL; + for (l = asec->map_head.link_order; l != NULL; l = l->next) + { + if ((l->type == bfd_indirect_link_order)) + { + if (l->u.indirect.section == t->build_id.sec) + { + link_order = l; + break; + } + } + } + + if (link_order) + break; + } + + if (!link_order) + { + einfo (_("%P: warning: .buildid section discarded," + " --build-id ignored.\n")); + return TRUE; + } + + if (t->build_id.sec->contents == NULL) + t->build_id.sec->contents = (unsigned char *) xmalloc (t->build_id.sec->size); + contents = t->build_id.sec->contents; + size = t->build_id.sec->size; + + build_id_size = compute_build_id_size (t->build_id.style); + build_id = xmalloc (build_id_size); + generate_build_id (abfd, t->build_id.style, pecoff_checksum_contents, build_id, build_id_size); + + bfd_vma ib = pe_data (link_info.output_bfd)->pe_opthdr.ImageBase; + + /* Construct a debug directory entry which points to an immediately following CodeView record. */ + struct internal_IMAGE_DEBUG_DIRECTORY idd; + idd.Characteristics = 0; + idd.TimeDateStamp = 0; + idd.MajorVersion = 0; + idd.MinorVersion = 0; + idd.Type = PE_IMAGE_DEBUG_TYPE_CODEVIEW; + idd.SizeOfData = sizeof (CV_INFO_PDB70) + 1; + idd.AddressOfRawData = asec->vma - ib + link_order->offset + + sizeof (struct external_IMAGE_DEBUG_DIRECTORY); + idd.PointerToRawData = asec->filepos + link_order->offset + + sizeof (struct external_IMAGE_DEBUG_DIRECTORY); + + struct external_IMAGE_DEBUG_DIRECTORY *ext = (struct external_IMAGE_DEBUG_DIRECTORY *)contents; + _bfd_XXi_swap_debugdir_out (abfd, &idd, ext); + + /* Write the debug directory enttry */ + if (bfd_seek (abfd, asec->filepos + link_order->offset, SEEK_SET) != 0) + return 0; + + if ((bfd_bwrite (contents, size, abfd) != size)) + return 0; + + /* Construct the CodeView record. */ + CODEVIEW_INFO cvinfo; + cvinfo.CVSignature = CVINFO_PDB70_CVSIGNATURE; + cvinfo.Age = 1; + + /* Zero pad or truncate the generated build_id to fit in the CodeView record. */ + memset (&(cvinfo.Signature), 0, CV_INFO_SIGNATURE_LENGTH); + memcpy (&(cvinfo.Signature), build_id, (build_id_size > CV_INFO_SIGNATURE_LENGTH) + ? CV_INFO_SIGNATURE_LENGTH : build_id_size); + + free (build_id); + + /* Write the codeview record. */ + if (_bfd_XXi_write_codeview_record (abfd, idd.PointerToRawData, &cvinfo) == 0) + return 0; + + /* Record the location of the debug directory in the data directory. */ + pe_data (link_info.output_bfd)->pe_opthdr.DataDirectory[PE_DEBUG_DATA].VirtualAddress + = asec->vma - ib + link_order->offset; + pe_data (link_info.output_bfd)->pe_opthdr.DataDirectory[PE_DEBUG_DATA].Size + = sizeof (struct external_IMAGE_DEBUG_DIRECTORY); + + return TRUE; +} + +/* Make .buildid section, and set up coff_tdata->build_id. */ +static bfd_boolean +setup_build_id (bfd *ibfd) +{ + asection *s; + flagword flags; + + if (!validate_build_id_style (emit_build_id)) + { + einfo ("%P: warning: unrecognized --build-id style ignored.\n"); + return FALSE; + } + + flags = (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_IN_MEMORY + | SEC_LINKER_CREATED | SEC_READONLY | SEC_DATA); + s = bfd_make_section_anyway_with_flags (ibfd, ".buildid", flags); + if (s != NULL) + { + struct pe_tdata *t = pe_data (link_info.output_bfd); + t->build_id.after_write_object_contents = &write_build_id; + t->build_id.style = emit_build_id; + t->build_id.sec = s; + + /* Section is a fixed size: + One IMAGE_DEBUG_DIRECTORY entry, of type IMAGE_DEBUG_TYPE_CODEVIEW, + pointing at a CV_INFO_PDB70 record containing the build-id, with a + null byte for PdbFileName. */ + s->size = sizeof (struct external_IMAGE_DEBUG_DIRECTORY) + + sizeof (CV_INFO_PDB70) + 1; + + return TRUE; + } + + einfo ("%P: warning: Cannot create .buildid section," + " --build-id ignored.\n"); + return FALSE; +} static void gld_${EMULATION_NAME}_after_open (void) { + after_open_default (); + + is_underscoring (); #ifdef DLL_SUPPORT if (pep_dll_extra_pe_debug) { @@ -1025,11 +1403,31 @@ gld_${EMULATION_NAME}_after_open (void) printf ("-%s\n", sym->root.string); bfd_hash_traverse (&link_info.hash->table, pr_sym, NULL); - for (a = link_info.input_bfds; a; a = a->link_next) + for (a = link_info.input_bfds; a; a = a->link.next) printf ("*%s\n",a->filename); } #endif + if (emit_build_id != NULL) + { + bfd *abfd; + + /* Find a COFF input. */ + for (abfd = link_info.input_bfds; + abfd != (bfd *) NULL; abfd = abfd->link.next) + if (bfd_get_flavour (abfd) == bfd_target_coff_flavour) + break; + + /* If there are no COFF input files do not try to + add a build-id section. */ + if (abfd == NULL + || !setup_build_id (abfd)) + { + free ((char *) emit_build_id); + emit_build_id = NULL; + } + } + /* Pass the wacky PE command line options into the output bfd. FIXME: This should be done via a function, rather than by including an internal BFD header. */ @@ -1042,6 +1440,37 @@ gld_${EMULATION_NAME}_after_open (void) pe_data (link_info.output_bfd)->pe_opthdr = pep; pe_data (link_info.output_bfd)->dll = init[DLLOFF].value; pe_data (link_info.output_bfd)->real_flags |= real_flags; + pe_data (link_info.output_bfd)->insert_timestamp = insert_timestamp; + + /* At this point we must decide whether to use long section names + in the output or not. If the user hasn't explicitly specified + on the command line, we leave it to the default for the format + (object files yes, image files no), except if there is debug + information present; GDB relies on the long section names to + find it, so enable it in that case. */ + if (pep_use_coff_long_section_names < 0 && link_info.strip == strip_none) + { + if (link_info.relocatable) + pep_use_coff_long_section_names = 1; + else + { + /* Iterate over all sections of all input BFDs, checking + for any that begin 'debug_' and are long names. */ + LANG_FOR_EACH_INPUT_STATEMENT (is) + { + int found_debug = 0; + + bfd_map_over_sections (is->the_bfd, debug_section_p, &found_debug); + if (found_debug) + { + pep_use_coff_long_section_names = 1; + break; + } + } + } + } + + pep_output_file_set_long_section_names (link_info.output_bfd); #ifdef DLL_SUPPORT if (pep_enable_stdcall_fixup) /* -1=warn or 1=disable */ @@ -1051,6 +1480,11 @@ gld_${EMULATION_NAME}_after_open (void) pep_find_data_imports (); + /* As possibly new symbols are added by imports, we rerun + stdcall/fastcall fixup here. */ + if (pep_enable_stdcall_fixup) /* -1=warn or 1=disable */ + pep_fixup_stdcalls (); + #ifndef TARGET_IS_i386pep if (link_info.shared) #else @@ -1152,8 +1586,9 @@ gld_${EMULATION_NAME}_after_open (void) ? bfd_get_filename (blhe->u.def.section->owner->my_archive) : bfd_get_filename (blhe->u.def.section->owner); - if (strcmp (bfd_get_filename (is->the_bfd->my_archive), - other_bfd_filename) == 0) + if (filename_cmp (bfd_get_filename + (is->the_bfd->my_archive), + other_bfd_filename) == 0) continue; /* Rename this implib to match the other one. */ @@ -1207,7 +1642,7 @@ gld_${EMULATION_NAME}_after_open (void) extension, and use that for the remainder of the comparisons. */ pnt = strrchr (is3->the_bfd->filename, '.'); - if (pnt != NULL && strcmp (pnt, ".dll") == 0) + if (pnt != NULL && filename_cmp (pnt, ".dll") == 0) break; } @@ -1224,11 +1659,11 @@ gld_${EMULATION_NAME}_after_open (void) /* Skip static members, ie anything with a .obj extension. */ pnt = strrchr (is2->the_bfd->filename, '.'); - if (pnt != NULL && strcmp (pnt, ".obj") == 0) + if (pnt != NULL && filename_cmp (pnt, ".obj") == 0) continue; - if (strcmp (is3->the_bfd->filename, - is2->the_bfd->filename)) + if (filename_cmp (is3->the_bfd->filename, + is2->the_bfd->filename)) { is_ms_arch = 0; break; @@ -1242,7 +1677,7 @@ gld_${EMULATION_NAME}_after_open (void) then leave the filename alone. */ pnt = strrchr (is->the_bfd->filename, '.'); - if (is_ms_arch && (strcmp (pnt, ".dll") == 0)) + if (is_ms_arch && (filename_cmp (pnt, ".dll") == 0)) { int idata2 = 0, reloc_count=0; asection *sec; @@ -1278,6 +1713,7 @@ gld_${EMULATION_NAME}_after_open (void) static void gld_${EMULATION_NAME}_before_allocation (void) { + is_underscoring (); before_allocation_default (); } @@ -1290,8 +1726,10 @@ saw_option (char *option) { int i; + is_underscoring (); + for (i = 0; init[i].ptr; i++) - if (strcmp (init[i].symbol, option) == 0) + if (strcmp (GET_INIT_SYMBOL_NAME (i), option) == 0) return init[i].inited; return 0; } @@ -1303,7 +1741,7 @@ gld_${EMULATION_NAME}_unrecognized_file (lang_input_statement_type *entry ATTRIB #ifdef DLL_SUPPORT const char *ext = entry->filename + strlen (entry->filename) - 4; - if (strcmp (ext, ".def") == 0 || strcmp (ext, ".DEF") == 0) + if (filename_cmp (ext, ".def") == 0 || filename_cmp (ext, ".DEF") == 0) { pep_def_file = def_file_parse (entry->filename, pep_def_file); @@ -1325,7 +1763,8 @@ gld_${EMULATION_NAME}_unrecognized_file (lang_input_statement_type *entry ATTRIB { struct bfd_link_hash_entry *h; - sprintf (buf, "_%s", pep_def_file->exports[i].internal_name); + sprintf (buf, "%s%s", U (""), + pep_def_file->exports[i].internal_name); h = bfd_link_hash_lookup (link_info.hash, buf, TRUE, TRUE, TRUE); if (h == (struct bfd_link_hash_entry *) NULL) @@ -1351,8 +1790,9 @@ gld_${EMULATION_NAME}_unrecognized_file (lang_input_statement_type *entry ATTRIB = pep_def_file->base_address; init[IMAGEBASEOFF].inited = 1; if (image_base_statement) - image_base_statement->exp = exp_assop ('=', "__image_base__", - exp_intop (pep.ImageBase)); + image_base_statement->exp + = exp_assign ("__image_base__", exp_intop (pep.ImageBase), + FALSE); } if (pep_def_file->stack_reserve != -1 @@ -1379,6 +1819,7 @@ gld_${EMULATION_NAME}_unrecognized_file (lang_input_statement_type *entry ATTRIB static bfd_boolean gld_${EMULATION_NAME}_recognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED) { + is_underscoring (); #ifdef DLL_SUPPORT #ifdef TARGET_IS_i386pep pep_dll_id_target ("pei-x86-64"); @@ -1392,6 +1833,7 @@ gld_${EMULATION_NAME}_recognized_file (lang_input_statement_type *entry ATTRIBUT static void gld_${EMULATION_NAME}_finish (void) { + is_underscoring (); finish_default (); #ifdef DLL_SUPPORT @@ -1442,6 +1884,8 @@ gld_${EMULATION_NAME}_place_orphan (asection *s, char *dollar = NULL; lang_output_section_statement_type *os; lang_statement_list_type add_child; + lang_output_section_statement_type *match_by_name = NULL; + lang_statement_union_type **pl; /* Look through the script to see where to place this section. */ if (!link_info.relocatable @@ -1456,27 +1900,54 @@ gld_${EMULATION_NAME}_place_orphan (asection *s, lang_list_init (&add_child); - if (constraint == 0 - && (os = lang_output_section_find (secname)) != NULL - && os->bfd_section != NULL - && (os->bfd_section->flags == 0 - || ((s->flags ^ os->bfd_section->flags) - & (SEC_LOAD | SEC_ALLOC)) == 0)) + os = NULL; + if (constraint == 0) + for (os = lang_output_section_find (secname); + os != NULL; + os = next_matching_output_section_statement (os, 0)) + { + /* If we don't match an existing output section, tell + lang_insert_orphan to create a new output section. */ + constraint = SPECIAL; + + if (os->bfd_section != NULL + && (os->bfd_section->flags == 0 + || ((s->flags ^ os->bfd_section->flags) + & (SEC_LOAD | SEC_ALLOC)) == 0)) + { + /* We already have an output section statement with this + name, and its bfd section has compatible flags. + If the section already exists but does not have any flags set, + then it has been created by the linker, probably as a result of + a --section-start command line switch. */ + lang_add_section (&add_child, s, NULL, os); + break; + } + + /* Save unused output sections in case we can match them + against orphans later. */ + if (os->bfd_section == NULL) + match_by_name = os; + } + + /* If we didn't match an active output section, see if we matched an + unused one and use that. */ + if (os == NULL && match_by_name) { - /* We already have an output section statement with this - name, and its bfd section has compatible flags. - If the section already exists but does not have any flags set, - then it has been created by the linker, probably as a result of - a --section-start command line switch. */ - lang_add_section (&add_child, s, os); + lang_add_section (&match_by_name->children, s, NULL, match_by_name); + return match_by_name; } - else + + if (os == NULL) { static struct orphan_save hold[] = { { ".text", SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE, 0, 0, 0, 0 }, + { ".idata", + SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA, + 0, 0, 0, 0 }, { ".rdata", SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA, 0, 0, 0, 0 }, @@ -1490,6 +1961,7 @@ gld_${EMULATION_NAME}_place_orphan (asection *s, enum orphan_save_index { orphan_text = 0, + orphan_idata, orphan_rodata, orphan_data, orphan_bss @@ -1523,7 +1995,10 @@ gld_${EMULATION_NAME}_place_orphan (asection *s, else if ((s->flags & SEC_READONLY) == 0) place = &hold[orphan_data]; else if ((s->flags & SEC_CODE) == 0) - place = &hold[orphan_rodata]; + { + place = (!strncmp (secname, ".idata\$", 7) ? &hold[orphan_idata] + : &hold[orphan_rodata]); + } else place = &hold[orphan_text]; @@ -1541,53 +2016,42 @@ gld_${EMULATION_NAME}_place_orphan (asection *s, ->output_section_statement); } - /* All sections in an executable must be aligned to a page boundary. */ + /* All sections in an executable must be aligned to a page boundary. + In a relocatable link, just preserve the incoming alignment; the + address is discarded by lang_insert_orphan in that case, anyway. */ address = exp_unop (ALIGN_K, exp_nameop (NAME, "__section_alignment__")); os = lang_insert_orphan (s, secname, constraint, after, place, address, &add_child); + if (link_info.relocatable) + { + os->section_alignment = s->alignment_power; + os->bfd_section->alignment_power = s->alignment_power; + } } - { - lang_statement_union_type **pl = &os->children.head; - - if (dollar != NULL) - { - bfd_boolean found_dollar; - - /* The section name has a '\$'. Sort it with the other '\$' - sections. */ - found_dollar = FALSE; - for ( ; *pl != NULL; pl = &(*pl)->header.next) - { - lang_input_section_type *ls; - const char *lname; + /* If the section name has a '\$', sort it with the other '\$' + sections. */ + for (pl = &os->children.head; *pl != NULL; pl = &(*pl)->header.next) + { + lang_input_section_type *ls; + const char *lname; - if ((*pl)->header.type != lang_input_section_enum) - continue; + if ((*pl)->header.type != lang_input_section_enum) + continue; - ls = &(*pl)->input_section; + ls = &(*pl)->input_section; - lname = bfd_get_section_name (ls->section->owner, ls->section); - if (strchr (lname, '\$') == NULL) - { - if (found_dollar) - break; - } - else - { - found_dollar = TRUE; - if (strcmp (orig_secname, lname) < 0) - break; - } - } - } + lname = bfd_get_section_name (ls->section->owner, ls->section); + if (strchr (lname, '\$') != NULL + && (dollar == NULL || strcmp (orig_secname, lname) < 0)) + break; + } - if (add_child.head != NULL) - { - add_child.head->header.next = *pl; - *pl = add_child.head; - } - } + if (add_child.head != NULL) + { + *add_child.tail = *pl; + *pl = add_child.head; + } return os; } @@ -1635,7 +2099,7 @@ gld_${EMULATION_NAME}_open_dynamic_archive unsigned int i; - if (! entry->is_archive) + if (! entry->flags.maybe_archive || entry->flags.full_name_provided) return FALSE; filename = entry->filename; @@ -1725,7 +2189,7 @@ sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c if test -n "$GENERATE_AUTO_IMPORT_SCRIPT" ; then -echo ' ; else if (link_info.pei386_auto_import == 1) return' >> e${EMULATION_NAME}.c +echo ' ; else if (link_info.pei386_auto_import == 1 && link_info.pei386_runtime_pseudo_reloc != 2) return' >> e${EMULATION_NAME}.c sed $sc ldscripts/${EMULATION_NAME}.xa >> e${EMULATION_NAME}.c fi echo ' ; else return' >> e${EMULATION_NAME}.c @@ -1761,6 +2225,7 @@ struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation = gld_${EMULATION_NAME}_list_options, gld_${EMULATION_NAME}_recognized_file, gld_${EMULATION_NAME}_find_potential_libraries, - NULL /* new_vers_pattern. */ + NULL, /* new_vers_pattern. */ + NULL /* extra_map_file_text */ }; EOF