X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=ld%2Flexsup.c;h=eae64932dfcbeaeec4391fc613bfa459eda56bcb;hb=23ae20f5e3afeeab9aa616c63ab3b357668476d5;hp=d39f8489ae0a87fbb5a6d942de61e15f31a29f7b;hpb=1a0670f37442b7ae904932b347353046126b990c;p=deliverable%2Fbinutils-gdb.git diff --git a/ld/lexsup.c b/ld/lexsup.c index d39f8489ae..eae64932df 100644 --- a/ld/lexsup.c +++ b/ld/lexsup.c @@ -1,5 +1,5 @@ /* Parse options for the GNU linker. - Copyright (C) 1991-2016 Free Software Foundation, Inc. + Copyright (C) 1991-2020 Free Software Foundation, Inc. This file is part of the GNU Binutils. @@ -27,6 +27,7 @@ #include "safe-ctype.h" #include "getopt.h" #include "bfdlink.h" +#include "ctf-api.h" #include "ld.h" #include "ldmain.h" #include "ldmisc.h" @@ -38,9 +39,9 @@ #include "ldver.h" #include "ldemul.h" #include "demangle.h" -#ifdef ENABLE_PLUGINS +#if BFD_SUPPORTS_PLUGINS #include "plugin.h" -#endif /* ENABLE_PLUGINS */ +#endif /* BFD_SUPPORTS_PLUGINS */ #ifndef PATH_SEPARATOR #if defined (__MSDOS__) || (defined (_WIN32) && ! defined (__CYGWIN32__)) @@ -112,12 +113,21 @@ static const struct ld_option ld_options[] = 'd', NULL, N_("Force common symbols to be defined"), ONE_DASH }, { {"dp", no_argument, NULL, 'd'}, '\0', NULL, NULL, ONE_DASH }, + { {"dependency-file", required_argument, NULL, OPTION_DEPENDENCY_FILE}, + '\0', N_("FILE"), N_("Write dependency file"), TWO_DASHES }, + { {"force-group-allocation", no_argument, NULL, + OPTION_FORCE_GROUP_ALLOCATION}, + '\0', NULL, N_("Force group members out of groups"), TWO_DASHES }, { {"entry", required_argument, NULL, 'e'}, 'e', N_("ADDRESS"), N_("Set start address"), TWO_DASHES }, { {"export-dynamic", no_argument, NULL, OPTION_EXPORT_DYNAMIC}, 'E', NULL, N_("Export all dynamic symbols"), TWO_DASHES }, { {"no-export-dynamic", no_argument, NULL, OPTION_NO_EXPORT_DYNAMIC}, '\0', NULL, N_("Undo the effect of --export-dynamic"), TWO_DASHES }, + { {"enable-non-contiguous-regions", no_argument, NULL, OPTION_NON_CONTIGUOUS_REGIONS}, + '\0', NULL, N_("Enable support of non-contiguous memory regions"), TWO_DASHES }, + { {"enable-non-contiguous-regions-warnings", no_argument, NULL, OPTION_NON_CONTIGUOUS_REGIONS_WARNINGS}, + '\0', NULL, N_("Enable warnings when --enable-non-contiguous-regions may cause unexpected behaviour"), TWO_DASHES }, { {"EB", no_argument, NULL, OPTION_EB}, '\0', NULL, N_("Link big-endian objects"), ONE_DASH }, { {"EL", no_argument, NULL, OPTION_EL}, @@ -166,7 +176,7 @@ static const struct ld_option ld_options[] = 'O', NULL, N_("Optimize output file"), ONE_DASH }, { {"out-implib", required_argument, NULL, OPTION_OUT_IMPLIB}, '\0', N_("FILE"), N_("Generate import library"), TWO_DASHES }, -#ifdef ENABLE_PLUGINS +#if BFD_SUPPORTS_PLUGINS { {"plugin", required_argument, NULL, OPTION_PLUGIN}, '\0', N_("PLUGIN"), N_("Load named plugin"), ONE_DASH }, { {"plugin-opt", required_argument, NULL, OPTION_PLUGIN_OPT}, @@ -177,7 +187,12 @@ static const struct ld_option ld_options[] = { {"flto-partition=", required_argument, NULL, OPTION_IGNORE}, '\0', NULL, N_("Ignored for GCC LTO option compatibility"), ONE_DASH }, -#endif /* ENABLE_PLUGINS */ +#else + { {"plugin", required_argument, NULL, OPTION_IGNORE}, + '\0', N_("PLUGIN"), N_("Load named plugin (ignored)"), ONE_DASH }, + { {"plugin-opt", required_argument, NULL, OPTION_IGNORE}, + '\0', N_("ARG"), N_("Send arg to last-loaded plugin (ignored)"), ONE_DASH }, +#endif /* BFD_SUPPORTS_PLUGINS */ { {"fuse-ld=", required_argument, NULL, OPTION_IGNORE}, '\0', NULL, N_("Ignored for GCC linker option compatibility"), ONE_DASH }, @@ -311,6 +326,11 @@ static const struct ld_option ld_options[] = { {"demangle", optional_argument, NULL, OPTION_DEMANGLE}, '\0', N_("[=STYLE]"), N_("Demangle symbol names [using STYLE]"), TWO_DASHES }, + { {"disable-multiple-abs-defs", no_argument, NULL, + OPTION_DISABLE_MULTIPLE_DEFS_ABS}, + '\0', NULL, N_("Do not allow multiple definitions with symbols included\n" + " in filename invoked by -R or --just-symbols"), + TWO_DASHES}, { {"embedded-relocs", no_argument, NULL, OPTION_EMBEDDED_RELOCS}, '\0', NULL, N_("Generate embedded relocs"), TWO_DASHES}, { {"fatal-warnings", no_argument, NULL, OPTION_WARN_FATAL}, @@ -335,6 +355,9 @@ static const struct ld_option ld_options[] = { {"no-print-gc-sections", no_argument, NULL, OPTION_NO_PRINT_GC_SECTIONS}, '\0', NULL, N_("Do not list removed unused sections"), TWO_DASHES }, + { {"gc-keep-exported", no_argument, NULL, OPTION_GC_KEEP_EXPORTED}, + '\0', NULL, N_("Keep exported symbols when removing unused sections"), + TWO_DASHES }, { {"hash-size=", required_argument, NULL, OPTION_HASH_SIZE}, '\0', NULL, N_("Set default hash table size close to "), TWO_DASHES }, @@ -343,7 +366,7 @@ static const struct ld_option ld_options[] = { {"init", required_argument, NULL, OPTION_INIT}, '\0', N_("SYMBOL"), N_("Call SYMBOL at load-time"), ONE_DASH }, { {"Map", required_argument, NULL, OPTION_MAP}, - '\0', N_("FILE"), N_("Write a map file"), ONE_DASH }, + '\0', N_("FILE/DIR"), N_("Write a linker map to FILE or DIR/.map"), ONE_DASH }, { {"no-define-common", no_argument, NULL, OPTION_NO_DEFINE_COMMON}, '\0', NULL, N_("Do not define Common storage"), TWO_DASHES }, { {"no-demangle", no_argument, NULL, OPTION_NO_DEMANGLE }, @@ -363,6 +386,11 @@ static const struct ld_option ld_options[] = { {"allow-multiple-definition", no_argument, NULL, OPTION_ALLOW_MULTIPLE_DEFINITION}, '\0', NULL, N_("Allow multiple definitions"), TWO_DASHES }, +#if SUPPORT_ERROR_HANDLING_SCRIPT + { {"error-handling-script", required_argument, NULL, + OPTION_ERROR_HANDLING_SCRIPT}, + '\0', N_("SCRIPT"), N_("Provide a script to help with undefined symbol errors"), TWO_DASHES}, +#endif { {"no-undefined-version", no_argument, NULL, OPTION_NO_UNDEFINED_VERSION}, '\0', NULL, N_("Disallow undefined version"), TWO_DASHES }, { {"default-symver", no_argument, NULL, OPTION_DEFAULT_SYMVER}, @@ -488,6 +516,10 @@ static const struct ld_option ld_options[] = '\0', NULL, N_("Use C++ typeinfo dynamic list"), TWO_DASHES }, { {"dynamic-list", required_argument, NULL, OPTION_DYNAMIC_LIST}, '\0', N_("FILE"), N_("Read dynamic list"), TWO_DASHES }, + { {"export-dynamic-symbol", required_argument, NULL, OPTION_EXPORT_DYNAMIC_SYMBOL}, + '\0', N_("SYMBOL"), N_("Export the specified symbol"), EXACTLY_TWO_DASHES }, + { {"export-dynamic-symbol-list", required_argument, NULL, OPTION_EXPORT_DYNAMIC_SYMBOL_LIST}, + '\0', N_("FILE"), N_("Read export dynamic symbol list"), EXACTLY_TWO_DASHES }, { {"warn-common", no_argument, NULL, OPTION_WARN_COMMON}, '\0', NULL, N_("Warn about duplicate common symbols"), TWO_DASHES }, { {"warn-constructors", no_argument, NULL, OPTION_WARN_CONSTRUCTORS}, @@ -500,9 +532,16 @@ static const struct ld_option ld_options[] = { {"warn-section-align", no_argument, NULL, OPTION_WARN_SECTION_ALIGN}, '\0', NULL, N_("Warn if start of section changes due to alignment"), TWO_DASHES }, - { {"warn-shared-textrel", no_argument, NULL, OPTION_WARN_SHARED_TEXTREL}, - '\0', NULL, N_("Warn if shared object has DT_TEXTREL"), + { {"warn-textrel", no_argument, NULL, OPTION_WARN_TEXTREL}, + '\0', NULL, +#if DEFAULT_LD_TEXTREL_CHECK_WARNING + N_("Warn if output has DT_TEXTREL (default)"), +#else + N_("Warn if output has DT_TEXTREL"), +#endif TWO_DASHES }, + { {"warn-shared-textrel", no_argument, NULL, OPTION_WARN_TEXTREL}, + '\0', NULL, NULL, NO_HELP }, { {"warn-alternate-em", no_argument, NULL, OPTION_WARN_ALTERNATE_EM}, '\0', NULL, N_("Warn if an object has alternate ELF machine code"), TWO_DASHES }, @@ -532,6 +571,24 @@ static const struct ld_option ld_options[] = { {"orphan-handling", required_argument, NULL, OPTION_ORPHAN_HANDLING}, '\0', N_("=MODE"), N_("Control how orphan sections are handled."), TWO_DASHES }, + { {"print-map-discarded", no_argument, NULL, OPTION_PRINT_MAP_DISCARDED}, + '\0', NULL, N_("Show discarded sections in map file output (default)"), + TWO_DASHES }, + { {"no-print-map-discarded", no_argument, NULL, OPTION_NO_PRINT_MAP_DISCARDED}, + '\0', NULL, N_("Do not show discarded sections in map file output"), + TWO_DASHES }, + { {"ctf-variables", no_argument, NULL, OPTION_CTF_VARIABLES}, + '\0', NULL, N_("Emit names and types of static variables in CTF"), + TWO_DASHES }, + { {"no-ctf-variables", no_argument, NULL, OPTION_NO_CTF_VARIABLES}, + '\0', NULL, N_("Do not emit names and types of static variables in CTF"), + TWO_DASHES }, + { {"ctf-share-types=", required_argument, NULL, + OPTION_CTF_SHARE_TYPES}, + '\0', NULL, N_("How to share CTF types between translation units.\n" + " is: share-unconflicted (default),\n" + " share-duplicated"), + TWO_DASHES }, }; #define OPTION_COUNT ARRAY_SIZE (ld_options) @@ -547,13 +604,25 @@ parse_args (unsigned argc, char **argv) struct option *longopts; struct option *really_longopts; int last_optind; - enum report_method how_to_report_unresolved_symbols = RM_GENERATE_ERROR; + enum symbolic_enum + { + symbolic_unset = 0, + symbolic, + symbolic_functions, + } opt_symbolic = symbolic_unset; + enum dynamic_list_enum + { + dynamic_list_unset = 0, + dynamic_list_data, + dynamic_list + } opt_dynamic_list = dynamic_list_unset; + struct bfd_elf_dynamic_list *export_list = NULL; shortopts = (char *) xmalloc (OPTION_COUNT * 3 + 2); longopts = (struct option *) xmalloc (sizeof (*longopts) * (OPTION_COUNT + 1)); really_longopts = (struct option *) - malloc (sizeof (*really_longopts) * (OPTION_COUNT + 1)); + xmalloc (sizeof (*really_longopts) * (OPTION_COUNT + 1)); /* Starting the short option string with '-' is for programs that expect options and other ARGV-elements in any order and that care about @@ -671,6 +740,20 @@ parse_args (unsigned argc, char **argv) optind = last_optind; optc = getopt_long (argc, argv, "-", really_longopts, &longind); } + /* Attempt to detect grouped short options, eg: "-non-start". + Accepting such options is error prone as it is not clear if the user + intended "-n -o n-start" or "--non-start". */ + else if (longind == 0 /* This is a short option. */ + && optc > 32 /* It is a valid option. */ + /* The character is not the second character of argv[last_optind]. */ + && optc != argv[last_optind][1]) + { + if (optarg) + einfo (_("%F%P: Error: unable to disambiguate: %s (did you mean -%s ?)\n"), + argv[last_optind], argv[last_optind]); + else + einfo (_("%P: Warning: grouped short command line options are deprecated: %s\n"), argv[last_optind]); + } if (ldemul_handle_option (optc)) continue; @@ -706,7 +789,8 @@ parse_args (unsigned argc, char **argv) /* Fall through. */ default: - einfo (_("%P%F: use the --help option for usage information\n")); + einfo (_("%F%P: use the --help option for usage information\n")); + break; case 1: /* File name. */ lang_add_input_file (optarg, lang_input_file_is_file_enum, NULL); @@ -724,7 +808,7 @@ parse_args (unsigned argc, char **argv) || strcmp (optarg, "default") == 0) input_flags.dynamic = TRUE; else - einfo (_("%P%F: unrecognized -a option `%s'\n"), optarg); + einfo (_("%F%P: unrecognized -a option `%s'\n"), optarg); break; case OPTION_ASSERT: /* FIXME: We just ignore these, but we should handle them. */ @@ -737,7 +821,7 @@ parse_args (unsigned argc, char **argv) else if (strcmp (optarg, "pure-text") == 0) ; else - einfo (_("%P%F: unrecognized -assert option `%s'\n"), optarg); + einfo (_("%F%P: unrecognized -assert option `%s'\n"), optarg); break; case 'A': ldfile_add_arch (optarg); @@ -763,6 +847,9 @@ parse_args (unsigned argc, char **argv) case 'd': command_line.force_common_definition = TRUE; break; + case OPTION_FORCE_GROUP_ALLOCATION: + command_line.force_group_allocation = TRUE; + break; case OPTION_DEFSYM: lex_string = optarg; lex_redirect (optarg, "--defsym", ++defsym_count); @@ -811,6 +898,12 @@ parse_args (unsigned argc, char **argv) case OPTION_NO_EXPORT_DYNAMIC: link_info.export_dynamic = FALSE; break; + case OPTION_NON_CONTIGUOUS_REGIONS: + link_info.non_contiguous_regions = TRUE; + break; + case OPTION_NON_CONTIGUOUS_REGIONS_WARNINGS: + link_info.non_contiguous_regions_warnings = TRUE; + break; case 'e': lang_add_entry (optarg, TRUE); break; @@ -818,7 +911,7 @@ parse_args (unsigned argc, char **argv) if (command_line.auxiliary_filters == NULL) { command_line.auxiliary_filters = (char **) - xmalloc (2 * sizeof (char *)); + xmalloc (2 * sizeof (char *)); command_line.auxiliary_filters[0] = optarg; command_line.auxiliary_filters[1] = NULL; } @@ -831,8 +924,8 @@ parse_args (unsigned argc, char **argv) for (p = command_line.auxiliary_filters; *p != NULL; p++) ++c; command_line.auxiliary_filters = (char **) - xrealloc (command_line.auxiliary_filters, - (c + 2) * sizeof (char *)); + xrealloc (command_line.auxiliary_filters, + (c + 2) * sizeof (char *)); command_line.auxiliary_filters[c] = optarg; command_line.auxiliary_filters[c + 1] = NULL; } @@ -848,7 +941,7 @@ parse_args (unsigned argc, char **argv) char *end; g_switch_value = strtoul (optarg, &end, 0); if (*end) - einfo (_("%P%F: invalid number `%s'\n"), optarg); + einfo (_("%F%P: invalid number `%s'\n"), optarg); } break; case 'g': @@ -860,6 +953,9 @@ parse_args (unsigned argc, char **argv) case OPTION_PRINT_GC_SECTIONS: link_info.print_gc_sections = TRUE; break; + case OPTION_GC_KEEP_EXPORTED: + link_info.gc_keep_exported = TRUE; + break; case OPTION_HELP: help (); xexit (0); @@ -891,11 +987,12 @@ parse_args (unsigned argc, char **argv) Use --call-shared or -Bdynamic for this. */ break; case 'n': + config.text_read_only = TRUE; config.magic_demand_paged = FALSE; input_flags.dynamic = FALSE; break; case OPTION_NO_DEFINE_COMMON: - command_line.inhibit_common_definition = TRUE; + link_info.inhibit_common_definition = TRUE; break; case OPTION_NO_DEMANGLE: demangling = FALSE; @@ -910,15 +1007,13 @@ parse_args (unsigned argc, char **argv) link_info.keep_memory = FALSE; break; case OPTION_NO_UNDEFINED: - link_info.unresolved_syms_in_objects - = how_to_report_unresolved_symbols; + link_info.unresolved_syms_in_objects = RM_DIAGNOSE; break; case OPTION_ALLOW_SHLIB_UNDEFINED: link_info.unresolved_syms_in_shared_libs = RM_IGNORE; break; case OPTION_NO_ALLOW_SHLIB_UNDEFINED: - link_info.unresolved_syms_in_shared_libs - = how_to_report_unresolved_symbols; + link_info.unresolved_syms_in_shared_libs = RM_DIAGNOSE; break; case OPTION_UNRESOLVED_SYMBOLS: if (strcmp (optarg, "ignore-all") == 0) @@ -928,44 +1023,40 @@ parse_args (unsigned argc, char **argv) } else if (strcmp (optarg, "report-all") == 0) { - link_info.unresolved_syms_in_objects - = how_to_report_unresolved_symbols; - link_info.unresolved_syms_in_shared_libs - = how_to_report_unresolved_symbols; + link_info.unresolved_syms_in_objects = RM_DIAGNOSE; + link_info.unresolved_syms_in_shared_libs = RM_DIAGNOSE; } else if (strcmp (optarg, "ignore-in-object-files") == 0) { link_info.unresolved_syms_in_objects = RM_IGNORE; - link_info.unresolved_syms_in_shared_libs - = how_to_report_unresolved_symbols; + link_info.unresolved_syms_in_shared_libs = RM_DIAGNOSE; } - else if (strcmp (optarg, "ignore-in-shared-libs") == 0) + else if (strcmp (optarg, "ignore-in-shared-libs") == 0) { - link_info.unresolved_syms_in_objects - = how_to_report_unresolved_symbols; + link_info.unresolved_syms_in_objects = RM_DIAGNOSE; link_info.unresolved_syms_in_shared_libs = RM_IGNORE; } else - einfo (_("%P%F: bad --unresolved-symbols option: %s\n"), optarg); + einfo (_("%F%P: bad --unresolved-symbols option: %s\n"), optarg); break; case OPTION_WARN_UNRESOLVED_SYMBOLS: - how_to_report_unresolved_symbols = RM_GENERATE_WARNING; - if (link_info.unresolved_syms_in_objects == RM_GENERATE_ERROR) - link_info.unresolved_syms_in_objects = RM_GENERATE_WARNING; - if (link_info.unresolved_syms_in_shared_libs == RM_GENERATE_ERROR) - link_info.unresolved_syms_in_shared_libs = RM_GENERATE_WARNING; + link_info.warn_unresolved_syms = TRUE; break; - case OPTION_ERROR_UNRESOLVED_SYMBOLS: - how_to_report_unresolved_symbols = RM_GENERATE_ERROR; - if (link_info.unresolved_syms_in_objects == RM_GENERATE_WARNING) - link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR; - if (link_info.unresolved_syms_in_shared_libs == RM_GENERATE_WARNING) - link_info.unresolved_syms_in_shared_libs = RM_GENERATE_ERROR; + link_info.warn_unresolved_syms = FALSE; break; case OPTION_ALLOW_MULTIPLE_DEFINITION: link_info.allow_multiple_definition = TRUE; break; + +#if SUPPORT_ERROR_HANDLING_SCRIPT + case OPTION_ERROR_HANDLING_SCRIPT: + /* FIXME: Should we warn if the script is being overridden by another ? + Or maybe they should be chained together ? */ + error_handling_script = optarg; + break; +#endif + case OPTION_NO_UNDEFINED_VERSION: link_info.allow_undefined_version = FALSE; break; @@ -1017,15 +1108,15 @@ parse_args (unsigned argc, char **argv) case OPTION_PRINT_OUTPUT_FORMAT: command_line.print_output_format = TRUE; break; -#ifdef ENABLE_PLUGINS +#if BFD_SUPPORTS_PLUGINS case OPTION_PLUGIN: plugin_opt_plugin (optarg); break; case OPTION_PLUGIN_OPT: if (plugin_opt_plugin_arg (optarg)) - einfo (_("%P%F: bad -plugin-opt option\n")); + einfo (_("%F%P: bad -plugin-opt option\n")); break; -#endif /* ENABLE_PLUGINS */ +#endif /* BFD_SUPPORTS_PLUGINS */ case 'q': link_info.emitrelocations = TRUE; break; @@ -1040,10 +1131,10 @@ parse_args (unsigned argc, char **argv) an error message here. We cannot just make this a warning, increment optind, and continue because getopt is too confused and will seg-fault the next time around. */ - einfo(_("%P%F: unrecognised option: %s\n"), argv[optind]); + einfo(_("%F%P: unrecognised option: %s\n"), argv[optind]); if (bfd_link_pic (&link_info)) - einfo (_("%P%F: -r and %s may not be used together\n"), + einfo (_("%F%P: -r and %s may not be used together\n"), bfd_link_dll (&link_info) ? "-shared" : "-pie"); link_info.type = type_relocatable; @@ -1117,8 +1208,8 @@ parse_args (unsigned argc, char **argv) char *buf; buf = (char *) xmalloc (strlen (command_line.rpath_link) - + strlen (optarg) - + 2); + + strlen (optarg) + + 2); sprintf (buf, "%s%c%s", command_line.rpath_link, config.rpath_separator, optarg); free (command_line.rpath_link); @@ -1146,11 +1237,15 @@ parse_args (unsigned argc, char **argv) case OPTION_NO_STRIP_DISCARDED: link_info.strip_discarded = FALSE; break; + case OPTION_DISABLE_MULTIPLE_DEFS_ABS: + link_info.prohibit_multiple_definition_absolute = TRUE; + break; case OPTION_SHARED: if (config.has_shared) { if (bfd_link_relocatable (&link_info)) - einfo (_("%P%F: -r and -shared may not be used together\n")); + einfo (_("%F%P: -r and %s may not be used together\n"), + "-shared"); link_info.type = type_dll; /* When creating a shared library, the default @@ -1161,18 +1256,18 @@ parse_args (unsigned argc, char **argv) link_info.unresolved_syms_in_shared_libs = RM_IGNORE; } else - einfo (_("%P%F: -shared not supported\n")); + einfo (_("%F%P: -shared not supported\n")); break; case OPTION_PIE: if (config.has_shared) { if (bfd_link_relocatable (&link_info)) - einfo (_("%P%F: -r and -pie may not be used together\n")); + einfo (_("%F%P: -r and %s may not be used together\n"), "-pie"); link_info.type = type_pie; } else - einfo (_("%P%F: -pie not supported\n")); + einfo (_("%F%P: -pie not supported\n")); break; case 'h': /* Used on Solaris. */ case OPTION_SONAME: @@ -1185,11 +1280,11 @@ parse_args (unsigned argc, char **argv) case OPTION_SORT_COMMON: if (optarg == NULL || strcmp (optarg, N_("descending")) == 0) - config.sort_common = sort_descending; - else if (strcmp (optarg, N_("ascending")) == 0) + config.sort_common = sort_descending; + else if (strcmp (optarg, N_("ascending")) == 0) config.sort_common = sort_ascending; else - einfo (_("%P%F: invalid common section sorting option: %s\n"), + einfo (_("%F%P: invalid common section sorting option: %s\n"), optarg); break; case OPTION_SORT_SECTION: @@ -1198,24 +1293,24 @@ parse_args (unsigned argc, char **argv) else if (strcmp (optarg, N_("alignment")) == 0) sort_section = by_alignment; else - einfo (_("%P%F: invalid section sorting option: %s\n"), + einfo (_("%F%P: invalid section sorting option: %s\n"), optarg); break; case OPTION_STATS: config.stats = TRUE; break; case OPTION_SYMBOLIC: - command_line.symbolic = symbolic; + opt_symbolic = symbolic; break; case OPTION_SYMBOLIC_FUNCTIONS: - command_line.symbolic = symbolic_functions; + opt_symbolic = symbolic_functions; break; case 't': - trace_files = TRUE; + ++trace_files; break; case 'T': previous_script_handle = saved_script_handle; - ldfile_open_command_file (optarg); + ldfile_open_script_file (optarg); parser_input = input_script; yyparse (); previous_script_handle = NULL; @@ -1232,14 +1327,14 @@ parse_args (unsigned argc, char **argv) /* Check for =... */ optarg2 = strchr (optarg, '='); if (optarg2 == NULL) - einfo (_("%P%F: invalid argument to option" + einfo (_("%F%P: invalid argument to option" " \"--section-start\"\n")); optarg2++; /* So far so good. Are all the args present? */ if ((*optarg == '\0') || (*optarg2 == '\0')) - einfo (_("%P%F: missing argument(s) to option" + einfo (_("%F%P: missing argument(s) to option" " \"--section-start\"\n")); /* We must copy the section name as set_section_start @@ -1283,7 +1378,7 @@ parse_args (unsigned argc, char **argv) /* Fall through. */ case OPTION_UR: if (bfd_link_pic (&link_info)) - einfo (_("%P%F: -r and %s may not be used together\n"), + einfo (_("%F%P: -r and %s may not be used together\n"), bfd_link_dll (&link_info) ? "-shared" : "-pie"); link_info.type = type_relocatable; @@ -1295,8 +1390,8 @@ parse_args (unsigned argc, char **argv) case 'u': ldlang_add_undef (optarg, TRUE); break; - case OPTION_REQUIRE_DEFINED_SYMBOL: - ldlang_add_require_defined (optarg); + case OPTION_REQUIRE_DEFINED_SYMBOL: + ldlang_add_require_defined (optarg); break; case OPTION_UNIQUE: if (optarg != NULL) @@ -1314,10 +1409,10 @@ parse_args (unsigned argc, char **argv) char *end; int level ATTRIBUTE_UNUSED = strtoul (optarg, &end, 0); if (*end) - einfo (_("%P%F: invalid number `%s'\n"), optarg); -#ifdef ENABLE_PLUGINS + einfo (_("%F%P: invalid number `%s'\n"), optarg); +#if BFD_SUPPORTS_PLUGINS report_plugin_symbols = level > 1; -#endif /* ENABLE_PLUGINS */ +#endif /* BFD_SUPPORTS_PLUGINS */ } break; case 'v': @@ -1353,23 +1448,17 @@ parse_args (unsigned argc, char **argv) command_line.version_exports_section = optarg; break; case OPTION_DYNAMIC_LIST_DATA: - command_line.dynamic_list = dynamic_list_data; - if (command_line.symbolic == symbolic) - command_line.symbolic = symbolic_unset; + opt_dynamic_list = dynamic_list_data; break; case OPTION_DYNAMIC_LIST_CPP_TYPEINFO: lang_append_dynamic_list_cpp_typeinfo (); - if (command_line.dynamic_list != dynamic_list_data) - command_line.dynamic_list = dynamic_list; - if (command_line.symbolic == symbolic) - command_line.symbolic = symbolic_unset; + if (opt_dynamic_list != dynamic_list_data) + opt_dynamic_list = dynamic_list; break; case OPTION_DYNAMIC_LIST_CPP_NEW: lang_append_dynamic_list_cpp_new (); - if (command_line.dynamic_list != dynamic_list_data) - command_line.dynamic_list = dynamic_list; - if (command_line.symbolic == symbolic) - command_line.symbolic = symbolic_unset; + if (opt_dynamic_list != dynamic_list_data) + opt_dynamic_list = dynamic_list; break; case OPTION_DYNAMIC_LIST: /* This option indicates a small script that only specifies @@ -1382,12 +1471,34 @@ parse_args (unsigned argc, char **argv) ldfile_open_command_file (optarg); saved_script_handle = hold_script_handle; parser_input = input_dynamic_list; + current_dynamic_list_p = &link_info.dynamic_list; + yyparse (); + } + if (opt_dynamic_list != dynamic_list_data) + opt_dynamic_list = dynamic_list; + break; + case OPTION_EXPORT_DYNAMIC_SYMBOL: + { + struct bfd_elf_version_expr *expr + = lang_new_vers_pattern (NULL, xstrdup (optarg), NULL, + FALSE); + lang_append_dynamic_list (&export_list, expr); + } + break; + case OPTION_EXPORT_DYNAMIC_SYMBOL_LIST: + /* This option indicates a small script that only specifies + an export list. Read it, but don't assume that we've + seen a linker script. */ + { + FILE *hold_script_handle; + + hold_script_handle = saved_script_handle; + ldfile_open_command_file (optarg); + saved_script_handle = hold_script_handle; + parser_input = input_dynamic_list; + current_dynamic_list_p = &export_list; yyparse (); } - if (command_line.dynamic_list != dynamic_list_data) - command_line.dynamic_list = dynamic_list; - if (command_line.symbolic == symbolic) - command_line.symbolic = symbolic_unset; break; case OPTION_WARN_COMMON: config.warn_common = TRUE; @@ -1410,8 +1521,8 @@ parse_args (unsigned argc, char **argv) case OPTION_WARN_SECTION_ALIGN: config.warn_section_align = TRUE; break; - case OPTION_WARN_SHARED_TEXTREL: - link_info.warn_shared_textrel = TRUE; + case OPTION_WARN_TEXTREL: + link_info.textrel_check = textrel_check_warning; break; case OPTION_WARN_ALTERNATE_EM: link_info.warn_alternate_em = TRUE; @@ -1449,8 +1560,7 @@ parse_args (unsigned argc, char **argv) case 'Y': if (CONST_STRNEQ (optarg, "P,")) optarg += 2; - if (default_dirlist != NULL) - free (default_dirlist); + free (default_dirlist); default_dirlist = xstrdup (optarg); break; case 'y': @@ -1489,7 +1599,7 @@ parse_args (unsigned argc, char **argv) break; case ')': if (! ingroup) - einfo (_("%P%F: group ended before it began (--help for usage)\n")); + einfo (_("%F%P: group ended before it began (--help for usage)\n")); lang_leave_group (); ingroup--; @@ -1509,17 +1619,17 @@ parse_args (unsigned argc, char **argv) config.hash_table_size = 1021; break; - case OPTION_HASH_SIZE: + case OPTION_HASH_SIZE: { bfd_size_type new_size; - new_size = strtoul (optarg, NULL, 0); - if (new_size) - config.hash_table_size = new_size; - else - einfo (_("%P%X: --hash-size needs a numeric argument\n")); - } - break; + new_size = strtoul (optarg, NULL, 0); + if (new_size) + config.hash_table_size = new_size; + else + einfo (_("%X%P: --hash-size needs a numeric argument\n")); + } + break; case OPTION_PUSH_STATE: input_flags.pushed = xmemdup (&input_flags, @@ -1529,7 +1639,7 @@ parse_args (unsigned argc, char **argv) case OPTION_POP_STATE: if (input_flags.pushed == NULL) - einfo (_("%P%F: no state pushed before popping\n")); + einfo (_("%F%P: no state pushed before popping\n")); else { struct lang_input_statement_flags *oldp = input_flags.pushed; @@ -1552,9 +1662,73 @@ parse_args (unsigned argc, char **argv) else if (strcasecmp (optarg, "discard") == 0) config.orphan_handling = orphan_handling_discard; else - einfo (_("%P%F: invalid argument to option" + einfo (_("%F%P: invalid argument to option" " \"--orphan-handling\"\n")); break; + + case OPTION_NO_PRINT_MAP_DISCARDED: + config.print_map_discarded = FALSE; + break; + + case OPTION_PRINT_MAP_DISCARDED: + config.print_map_discarded = TRUE; + break; + + case OPTION_DEPENDENCY_FILE: + config.dependency_file = optarg; + break; + + case OPTION_CTF_VARIABLES: + config.ctf_variables = TRUE; + break; + + case OPTION_NO_CTF_VARIABLES: + config.ctf_variables = FALSE; + break; + + case OPTION_CTF_SHARE_TYPES: + if (strcmp (optarg, "share-unconflicted") == 0) + config.ctf_share_duplicated = FALSE; + else if (strcmp (optarg, "share-duplicated") == 0) + config.ctf_share_duplicated = TRUE; + else + einfo (_("%F%P: bad --ctf-share-types option: %s\n"), optarg); + break; + } + } + + /* Run a couple of checks on the map filename. */ + if (config.map_filename) + { + if (config.map_filename[0] == 0) + { + einfo (_("%P: no file/directory name provided for map output; ignored\n")); + config.map_filename = NULL; + } + else + { + struct stat s; + + /* If the map filename is actually a directory then create + a file inside it, based upon the output filename. */ + if (stat (config.map_filename, &s) >= 0 + && S_ISDIR (s.st_mode)) + { + char * new_name; + + /* FIXME: This is a (trivial) memory leak. */ + if (asprintf (&new_name, "%s/%s.map", + config.map_filename, output_filename) < 0) + { + /* If this alloc fails then something is probably very + wrong. Better to halt now rather than continue on + into more problems. */ + einfo (_("%P%F: cannot create name for linker map file: %E\n")); + new_name = NULL; + } + + config.map_filename = new_name; + } } } @@ -1566,6 +1740,7 @@ parse_args (unsigned argc, char **argv) while (ingroup) { + einfo (_("%P: missing --end-group; added as last command line option\n")); lang_leave_group (); ingroup--; } @@ -1578,42 +1753,60 @@ parse_args (unsigned argc, char **argv) if (link_info.unresolved_syms_in_objects == RM_NOT_YET_SET) /* FIXME: Should we allow emulations a chance to set this ? */ - link_info.unresolved_syms_in_objects = how_to_report_unresolved_symbols; + link_info.unresolved_syms_in_objects = RM_DIAGNOSE; if (link_info.unresolved_syms_in_shared_libs == RM_NOT_YET_SET) /* FIXME: Should we allow emulations a chance to set this ? */ - link_info.unresolved_syms_in_shared_libs = how_to_report_unresolved_symbols; + link_info.unresolved_syms_in_shared_libs = RM_DIAGNOSE; if (bfd_link_relocatable (&link_info) && command_line.check_section_addresses < 0) command_line.check_section_addresses = 0; - /* We may have -Bsymbolic, -Bsymbolic-functions, --dynamic-list-data, - --dynamic-list-cpp-new, --dynamic-list-cpp-typeinfo and - --dynamic-list FILE. -Bsymbolic and -Bsymbolic-functions are - for PIC outputs. -Bsymbolic overrides all others and vice versa. */ - switch (command_line.symbolic) + if (export_list) { - case symbolic_unset: - break; - case symbolic: - /* -Bsymbolic is for PIC output only. */ - if (bfd_link_pic (&link_info)) + struct bfd_elf_version_expr *head = export_list->head.list; + struct bfd_elf_version_expr *next; + + /* For --export-dynamic-symbol[-list]: + 1. When building executable, treat like --dynamic-list. + 2. When building shared object: + a. If -Bsymbolic or --dynamic-list are used, treat like + --dynamic-list. + b. Otherwise, ignored. + */ + if (!bfd_link_relocatable (&link_info) + && (bfd_link_executable (&link_info) + || opt_symbolic != symbolic_unset + || opt_dynamic_list != dynamic_list_unset)) + { + /* Append the export list to link_info.dynamic_list. */ + if (link_info.dynamic_list) + { + for (next = head; next->next != NULL; next = next->next) + ; + next->next = link_info.dynamic_list->head.list; + link_info.dynamic_list->head.list = head; + } + else + link_info.dynamic_list = export_list; + + if (opt_dynamic_list != dynamic_list_data) + opt_dynamic_list = dynamic_list; + } + else { - link_info.symbolic = TRUE; - /* Should we free the unused memory? */ - link_info.dynamic_list = NULL; - command_line.dynamic_list = dynamic_list_unset; + /* Free the export list. */ + for (; head->next != NULL; head = next) + { + next = head->next; + free (head); + } + free (export_list); } - break; - case symbolic_functions: - /* -Bsymbolic-functions is for PIC output only. */ - if (bfd_link_pic (&link_info)) - command_line.dynamic_list = dynamic_list_data; - break; } - switch (command_line.dynamic_list) + switch (opt_dynamic_list) { case dynamic_list_unset: break; @@ -1622,15 +1815,42 @@ parse_args (unsigned argc, char **argv) /* Fall through. */ case dynamic_list: link_info.dynamic = TRUE; + opt_symbolic = symbolic_unset; break; } + /* -Bsymbolic and -Bsymbols-functions are for shared library output. */ + if (bfd_link_dll (&link_info)) + switch (opt_symbolic) + { + case symbolic_unset: + break; + case symbolic: + link_info.symbolic = TRUE; + if (link_info.dynamic_list) + { + struct bfd_elf_version_expr *ent, *next; + for (ent = link_info.dynamic_list->head.list; ent; ent = next) + { + next = ent->next; + free (ent); + } + free (link_info.dynamic_list); + link_info.dynamic_list = NULL; + } + break; + case symbolic_functions: + link_info.dynamic = TRUE; + link_info.dynamic_data = TRUE; + break; + } + if (!bfd_link_dll (&link_info)) { if (command_line.filter_shlib) - einfo (_("%P%F: -F may not be used without -shared\n")); + einfo (_("%F%P: -F may not be used without -shared\n")); if (command_line.auxiliary_filters) - einfo (_("%P%F: -f may not be used without -shared\n")); + einfo (_("%F%P: -f may not be used without -shared\n")); } /* Treat ld -r -s as ld -r -S -x (i.e., strip all local symbols). I @@ -1671,7 +1891,7 @@ set_section_start (char *sect, char *valstr) const char *end; bfd_vma val = bfd_scan_vma (valstr, &end, 16); if (*end) - einfo (_("%P%F: invalid hex number `%s'\n"), valstr); + einfo (_("%F%P: invalid hex number `%s'\n"), valstr); lang_section_start (sect, exp_intop (val), NULL); } @@ -1684,7 +1904,7 @@ set_segment_start (const char *section, char *valstr) bfd_vma val = bfd_scan_vma (valstr, &end, 16); if (*end) - einfo (_("%P%F: invalid hex number `%s'\n"), valstr); + einfo (_("%F%P: invalid hex number `%s'\n"), valstr); /* If we already have an entry for this segment, update the existing value. */ name = section + 1; @@ -1697,7 +1917,7 @@ set_segment_start (const char *section, char *valstr) } /* There was no existing value so we must create a new segment entry. */ - seg = (segment_type *) stat_alloc (sizeof (*seg)); + seg = stat_alloc (sizeof (*seg)); seg->name = name; seg->value = val; seg->used = FALSE; @@ -1729,17 +1949,34 @@ elf_shlib_list_options (FILE *file) fprintf (file, _("\ --exclude-libs=LIBS Make all symbols in LIBS hidden\n")); fprintf (file, _("\ - --hash-style=STYLE Set hash style to sysv, gnu or both\n")); + --hash-style=STYLE Set hash style to sysv/gnu/both. Default: ")); + if (DEFAULT_EMIT_SYSV_HASH) + { + /* Note - these strings are not translated as + they are keywords not descriptive text. */ + if (DEFAULT_EMIT_GNU_HASH) + fprintf (file, "both\n"); + else + fprintf (file, "sysv\n"); + } + else + { + if (DEFAULT_EMIT_GNU_HASH) + fprintf (file, "gnu\n"); + else + /* FIXME: Can this happen ? */ + fprintf (file, "none\n"); + } fprintf (file, _("\ -P AUDITLIB, --depaudit=AUDITLIB\n" "\ - Specify a library to use for auditing dependencies\n")); + Specify a library to use for auditing dependencies\n")); fprintf (file, _("\ -z combreloc Merge dynamic relocs into one section and sort\n")); fprintf (file, _("\ -z nocombreloc Don't merge dynamic relocs into one section\n")); fprintf (file, _("\ -z global Make symbols in DSO available for subsequently\n\ - loaded objects\n")); + loaded objects\n")); fprintf (file, _("\ -z initfirst Mark DSO to be initialized first at runtime\n")); fprintf (file, _("\ @@ -1762,7 +1999,7 @@ elf_shlib_list_options (FILE *file) -z now Mark object non-lazy runtime binding\n")); fprintf (file, _("\ -z origin Mark object requiring immediate $ORIGIN\n\ - processing at runtime\n")); + processing at runtime\n")); #if DEFAULT_LD_Z_RELRO fprintf (file, _("\ -z relro Create RELRO program header (default)\n")); @@ -1774,18 +2011,43 @@ elf_shlib_list_options (FILE *file) fprintf (file, _("\ -z norelro Don't create RELRO program header (default)\n")); #endif +#if DEFAULT_LD_Z_SEPARATE_CODE fprintf (file, _("\ - -z common Generate common symbols with STT_COMMON type\n")); + -z separate-code Create separate code program header (default)\n")); fprintf (file, _("\ - -z nocommon Generate common symbols with STT_OBJECT type\n")); + -z noseparate-code Don't create separate code program header\n")); +#else fprintf (file, _("\ - -z stacksize=SIZE Set size of stack segment\n")); + -z separate-code Create separate code program header\n")); fprintf (file, _("\ - -z text Treat DT_TEXTREL in shared object as error\n")); + -z noseparate-code Don't create separate code program header (default)\n")); +#endif fprintf (file, _("\ - -z notext Don't treat DT_TEXTREL in shared object as error\n")); + -z common Generate common symbols with STT_COMMON type\n")); fprintf (file, _("\ - -z textoff Don't treat DT_TEXTREL in shared object as error\n")); + -z nocommon Generate common symbols with STT_OBJECT type\n")); + fprintf (file, _("\ + -z stack-size=SIZE Set size of stack segment\n")); + if (link_info.textrel_check == textrel_check_error) + fprintf (file, _("\ + -z text Treat DT_TEXTREL in output as error (default)\n")); + else + fprintf (file, _("\ + -z text Treat DT_TEXTREL in output as error\n")); + if (link_info.textrel_check == textrel_check_none) + { + fprintf (file, _("\ + -z notext Don't treat DT_TEXTREL in output as error (default)\n")); + fprintf (file, _("\ + -z textoff Don't treat DT_TEXTREL in output as error (default)\n")); + } + else + { + fprintf (file, _("\ + -z notext Don't treat DT_TEXTREL in output as error\n")); + fprintf (file, _("\ + -z textoff Don't treat DT_TEXTREL in output as error\n")); + } } static void @@ -1798,30 +2060,37 @@ elf_static_list_options (FILE *file) Compress DWARF debug sections using zlib\n")); #ifdef DEFAULT_FLAG_COMPRESS_DEBUG fprintf (file, _("\ - Default: zlib-gabi\n")); + Default: zlib-gabi\n")); #else fprintf (file, _("\ - Default: none\n")); + Default: none\n")); #endif fprintf (file, _("\ -z common-page-size=SIZE Set common page size to SIZE\n")); fprintf (file, _("\ -z max-page-size=SIZE Set maximum page size to SIZE\n")); fprintf (file, _("\ - -z defs Report unresolved symbols in object files.\n")); + -z defs Report unresolved symbols in object files\n")); fprintf (file, _("\ -z muldefs Allow multiple definitions\n")); fprintf (file, _("\ -z execstack Mark executable as requiring executable stack\n")); fprintf (file, _("\ -z noexecstack Mark executable as not requiring executable stack\n")); + fprintf (file, _("\ + -z unique-symbol Avoid duplicated local symbol names\n")); + fprintf (file, _("\ + -z nounique-symbol Keep duplicated local symbol names (default)\n")); + fprintf (file, _("\ + -z globalaudit Mark executable requiring global auditing\n")); } static void elf_plt_unwind_list_options (FILE *file) { fprintf (file, _("\ - --ld-generated-unwind-info Generate exception handling info for PLT\n\ + --ld-generated-unwind-info Generate exception handling info for PLT\n")); + fprintf (file, _("\ --no-ld-generated-unwind-info\n\ Don't generate exception handling info for PLT\n")); }