X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=ld%2Flexsup.c;h=87341f93dcc41a5529f4258cf8d2ea0eff327c58;hb=39a67dc4f7d032c78f031e2d101b9552f1a6b57f;hp=acb63fb9da49e699e0176d348310578d8b6a7b53;hpb=94bf3a11ec367f7c9fb94149acc9eaf141ed3de0;p=deliverable%2Fbinutils-gdb.git diff --git a/ld/lexsup.c b/ld/lexsup.c index acb63fb9da..87341f93dc 100644 --- a/ld/lexsup.c +++ b/ld/lexsup.c @@ -1,7 +1,5 @@ /* Parse options for the GNU linker. - Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, - 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 - Free Software Foundation, Inc. + Copyright (C) 1991-2016 Free Software Foundation, Inc. This file is part of the GNU Binutils. @@ -62,129 +60,14 @@ static void set_section_start (char *, char *); static void set_segment_start (const char *, char *); static void help (void); -/* Non-zero if we are processing a --defsym from the command line. */ -int parsing_defsym = 0; - -/* Codes used for the long options with no short synonyms. 150 isn't - special; it's just an arbitrary non-ASCII char value. */ -enum option_values -{ - OPTION_ASSERT = 150, - OPTION_CALL_SHARED, - OPTION_CREF, - OPTION_DEFSYM, - OPTION_DEMANGLE, - OPTION_DYNAMIC_LINKER, - OPTION_SYSROOT, - OPTION_EB, - OPTION_EL, - OPTION_EMBEDDED_RELOCS, - OPTION_EXPORT_DYNAMIC, - OPTION_NO_EXPORT_DYNAMIC, - OPTION_HELP, - OPTION_IGNORE, - OPTION_MAP, - OPTION_NO_DEMANGLE, - OPTION_NO_KEEP_MEMORY, - OPTION_NO_WARN_MISMATCH, - OPTION_NO_WARN_SEARCH_MISMATCH, - OPTION_NOINHIBIT_EXEC, - OPTION_NON_SHARED, - OPTION_NO_WHOLE_ARCHIVE, - OPTION_OFORMAT, - OPTION_RELAX, - OPTION_NO_RELAX, - OPTION_RETAIN_SYMBOLS_FILE, - OPTION_RPATH, - OPTION_RPATH_LINK, - OPTION_SHARED, - OPTION_SONAME, - OPTION_SORT_COMMON, - OPTION_SORT_SECTION, - OPTION_STATS, - OPTION_SYMBOLIC, - OPTION_SYMBOLIC_FUNCTIONS, - OPTION_TASK_LINK, - OPTION_TBSS, - OPTION_TDATA, - OPTION_TTEXT, - OPTION_TTEXT_SEGMENT, - OPTION_TRADITIONAL_FORMAT, - OPTION_UR, - OPTION_VERBOSE, - OPTION_VERSION, - OPTION_VERSION_SCRIPT, - OPTION_VERSION_EXPORTS_SECTION, - OPTION_DYNAMIC_LIST, - OPTION_DYNAMIC_LIST_CPP_NEW, - OPTION_DYNAMIC_LIST_CPP_TYPEINFO, - OPTION_DYNAMIC_LIST_DATA, - OPTION_WARN_COMMON, - OPTION_WARN_CONSTRUCTORS, - OPTION_WARN_FATAL, - OPTION_NO_WARN_FATAL, - OPTION_WARN_MULTIPLE_GP, - OPTION_WARN_ONCE, - OPTION_WARN_SECTION_ALIGN, - OPTION_SPLIT_BY_RELOC, - OPTION_SPLIT_BY_FILE , - OPTION_WHOLE_ARCHIVE, - OPTION_ADD_DT_NEEDED_FOR_DYNAMIC, - OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC, - OPTION_ADD_DT_NEEDED_FOR_REGULAR, - OPTION_NO_ADD_DT_NEEDED_FOR_REGULAR, - OPTION_WRAP, - OPTION_FORCE_EXE_SUFFIX, - OPTION_GC_SECTIONS, - OPTION_NO_GC_SECTIONS, - OPTION_PRINT_GC_SECTIONS, - OPTION_NO_PRINT_GC_SECTIONS, - OPTION_HASH_SIZE, - OPTION_CHECK_SECTIONS, - OPTION_NO_CHECK_SECTIONS, - OPTION_NO_UNDEFINED, - OPTION_INIT, - OPTION_FINI, - OPTION_SECTION_START, - OPTION_UNIQUE, - OPTION_TARGET_HELP, - OPTION_ALLOW_SHLIB_UNDEFINED, - OPTION_NO_ALLOW_SHLIB_UNDEFINED, - OPTION_ALLOW_MULTIPLE_DEFINITION, - OPTION_NO_UNDEFINED_VERSION, - OPTION_DEFAULT_SYMVER, - OPTION_DEFAULT_IMPORTED_SYMVER, - OPTION_DISCARD_NONE, - OPTION_SPARE_DYNAMIC_TAGS, - OPTION_NO_DEFINE_COMMON, - OPTION_NOSTDLIB, - OPTION_NO_OMAGIC, - OPTION_STRIP_DISCARDED, - OPTION_NO_STRIP_DISCARDED, - OPTION_ACCEPT_UNKNOWN_INPUT_ARCH, - OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH, - OPTION_PIE, - OPTION_UNRESOLVED_SYMBOLS, - OPTION_WARN_UNRESOLVED_SYMBOLS, - OPTION_ERROR_UNRESOLVED_SYMBOLS, - OPTION_WARN_SHARED_TEXTREL, - OPTION_WARN_ALTERNATE_EM, - OPTION_REDUCE_MEMORY_OVERHEADS, -#ifdef ENABLE_PLUGINS - OPTION_PLUGIN, - OPTION_PLUGIN_OPT, -#endif /* ENABLE_PLUGINS */ - OPTION_DEFAULT_SCRIPT, -}; - /* The long options. This structure is used for both the option parsing and the help text. */ enum control_enum { /* Use one dash before long option name. */ - ONE_DASH, + ONE_DASH = 1, /* Use two dashes before long option name. */ - TWO_DASHES, + TWO_DASHES = 2, /* Only accept two dashes before the long option name. This is an overloading of the use of this enum, since originally it was only intended to tell the --help display function how to display @@ -255,6 +138,9 @@ static const struct ld_option ld_options[] = { {"dynamic-linker", required_argument, NULL, OPTION_DYNAMIC_LINKER}, 'I', N_("PROGRAM"), N_("Set PROGRAM as the dynamic linker to use"), TWO_DASHES }, + { {"no-dynamic-linker", no_argument, NULL, OPTION_NO_DYNAMIC_LINKER}, + '\0', NULL, N_("Produce an executable with no program interpreter header"), + TWO_DASHES }, { {"library", required_argument, NULL, 'l'}, 'l', N_("LIBNAME"), N_("Search for library LIBNAME"), TWO_DASHES }, { {"library-path", required_argument, NULL, 'L'}, @@ -290,6 +176,15 @@ static const struct ld_option ld_options[] = '\0', NULL, N_("Ignored for GCC LTO option compatibility"), ONE_DASH }, #endif /* ENABLE_PLUGINS */ + { {"fuse-ld=", required_argument, NULL, OPTION_IGNORE}, + '\0', NULL, N_("Ignored for GCC linker option compatibility"), + ONE_DASH }, + { {"map-whole-files", optional_argument, NULL, OPTION_IGNORE}, + '\0', NULL, N_("Ignored for gold option compatibility"), + TWO_DASHES }, + { {"no-map-whole-files", optional_argument, NULL, OPTION_IGNORE}, + '\0', NULL, N_("Ignored for gold option compatibility"), + TWO_DASHES }, { {"Qy", no_argument, NULL, OPTION_IGNORE}, '\0', NULL, N_("Ignored for SVR4 compatibility"), ONE_DASH }, { {"emit-relocs", no_argument, NULL, 'q'}, @@ -320,6 +215,9 @@ static const struct ld_option ld_options[] = { {"undefined", required_argument, NULL, 'u'}, 'u', N_("SYMBOL"), N_("Start with undefined reference to SYMBOL"), TWO_DASHES }, + { {"require-defined", required_argument, NULL, OPTION_REQUIRE_DEFINED_SYMBOL}, + '\0', N_("SYMBOL"), N_("Require SYMBOL be defined in the final output"), + TWO_DASHES }, { {"unique", optional_argument, NULL, OPTION_UNIQUE}, '\0', N_("[=SECTION]"), N_("Don't merge input [SECTION | orphan] sections"), TWO_DASHES }, @@ -454,7 +352,7 @@ static const struct ld_option ld_options[] = '\0', NULL, N_("Do not allow unresolved references in object files"), TWO_DASHES }, { {"allow-shlib-undefined", no_argument, NULL, OPTION_ALLOW_SHLIB_UNDEFINED}, - '\0', NULL, N_("Allow unresolved references in shared libaries"), + '\0', NULL, N_("Allow unresolved references in shared libraries"), TWO_DASHES }, { {"no-allow-shlib-undefined", no_argument, NULL, OPTION_NO_ALLOW_SHLIB_UNDEFINED}, @@ -491,6 +389,10 @@ static const struct ld_option ld_options[] = { {"oformat", required_argument, NULL, OPTION_OFORMAT}, '\0', N_("TARGET"), N_("Specify target of output file"), EXACTLY_TWO_DASHES }, + { {"print-output-format", no_argument, NULL, OPTION_PRINT_OUTPUT_FORMAT}, + '\0', NULL, N_("Print default output format"), TWO_DASHES }, + { {"print-sysroot", no_argument, NULL, OPTION_PRINT_SYSROOT}, + '\0', NULL, N_("Print current sysroot"), TWO_DASHES }, { {"qmagic", no_argument, NULL, OPTION_IGNORE}, '\0', NULL, N_("Ignored for Linux compatibility"), ONE_DASH }, { {"reduce-memory-overheads", no_argument, NULL, @@ -518,13 +420,13 @@ static const struct ld_option ld_options[] = { {"pic-executable", no_argument, NULL, OPTION_PIE}, '\0', NULL, NULL, TWO_DASHES }, { {"sort-common", optional_argument, NULL, OPTION_SORT_COMMON}, - '\0', N_("[=ascending|descending]"), - N_("Sort common symbols by alignment [in specified order]"), + '\0', N_("[=ascending|descending]"), + N_("Sort common symbols by alignment [in specified order]"), TWO_DASHES }, { {"sort_common", no_argument, NULL, OPTION_SORT_COMMON}, '\0', NULL, NULL, NO_HELP }, { {"sort-section", required_argument, NULL, OPTION_SORT_SECTION}, - '\0', N_("name|alignment"), + '\0', N_("name|alignment"), N_("Sort sections by name or maximum alignment"), TWO_DASHES }, { {"spare-dynamic-tags", required_argument, NULL, OPTION_SPARE_DYNAMIC_TAGS}, '\0', N_("COUNT"), N_("How many tags to reserve in .dynamic section"), @@ -554,14 +456,19 @@ static const struct ld_option ld_options[] = '\0', N_("ADDRESS"), N_("Set address of .text section"), ONE_DASH }, { {"Ttext-segment", required_argument, NULL, OPTION_TTEXT_SEGMENT}, '\0', N_("ADDRESS"), N_("Set address of text segment"), ONE_DASH }, + { {"Trodata-segment", required_argument, NULL, OPTION_TRODATA_SEGMENT}, + '\0', N_("ADDRESS"), N_("Set address of rodata segment"), ONE_DASH }, + { {"Tldata-segment", required_argument, NULL, OPTION_TLDATA_SEGMENT}, + '\0', N_("ADDRESS"), N_("Set address of ldata segment"), ONE_DASH }, { {"unresolved-symbols=", required_argument, NULL, OPTION_UNRESOLVED_SYMBOLS}, '\0', NULL, N_("How to handle unresolved symbols. is:\n" " ignore-all, report-all, ignore-in-object-files,\n" " ignore-in-shared-libs"), TWO_DASHES }, - { {"verbose", no_argument, NULL, OPTION_VERBOSE}, - '\0', NULL, N_("Output lots of information during link"), TWO_DASHES }, + { {"verbose", optional_argument, NULL, OPTION_VERBOSE}, + '\0', N_("[=NUMBER]"), + N_("Output lots of information during link"), TWO_DASHES }, { {"dll-verbose", no_argument, NULL, OPTION_VERBOSE}, /* Linux. */ '\0', NULL, NULL, NO_HELP }, { {"version-script", required_argument, NULL, OPTION_VERSION_SCRIPT }, @@ -608,6 +515,21 @@ static const struct ld_option ld_options[] = TWO_DASHES }, { {"wrap", required_argument, NULL, OPTION_WRAP}, '\0', N_("SYMBOL"), N_("Use wrapper functions for SYMBOL"), TWO_DASHES }, + { {"ignore-unresolved-symbol", required_argument, NULL, + OPTION_IGNORE_UNRESOLVED_SYMBOL}, + '\0', N_("SYMBOL"), + N_("Unresolved SYMBOL will not cause an error or warning"), TWO_DASHES }, + { {"push-state", no_argument, NULL, OPTION_PUSH_STATE}, + '\0', NULL, N_("Push state of flags governing input file handling"), + TWO_DASHES }, + { {"pop-state", no_argument, NULL, OPTION_POP_STATE}, + '\0', NULL, N_("Pop state of flags governing input file handling"), + TWO_DASHES }, + { {"print-memory-usage", no_argument, NULL, OPTION_PRINT_MEMORY_USAGE}, + '\0', NULL, N_("Report target memory usage"), TWO_DASHES }, + { {"orphan-handling", required_argument, NULL, OPTION_ORPHAN_HANDLING}, + '\0', N_("=MODE"), N_("Control how orphan sections are handled."), + TWO_DASHES }, }; #define OPTION_COUNT ARRAY_SIZE (ld_options) @@ -725,6 +647,7 @@ parse_args (unsigned argc, char **argv) { int longind; int optc; + static unsigned int defsym_count; /* Using last_optind lets us avoid calling ldemul_parse_args multiple times on a single option, which would lead to @@ -756,7 +679,28 @@ parse_args (unsigned argc, char **argv) switch (optc) { case '?': - einfo (_("%P: unrecognized option '%s'\n"), argv[last_optind]); + { + /* If the last word on the command line is an option that + requires an argument, getopt will refuse to recognise it. + Try to catch such options here and issue a more helpful + error message than just "unrecognized option". */ + int opt; + + for (opt = ARRAY_SIZE (ld_options); opt--;) + if (ld_options[opt].opt.has_arg == required_argument + /* FIXME: There are a few short options that do not + have long equivalents, but which require arguments. + We should handle them too. */ + && ld_options[opt].opt.name != NULL + && strcmp (argv[last_optind] + ld_options[opt].control, ld_options[opt].opt.name) == 0) + { + einfo (_("%P: %s: missing argument\n"), argv[last_optind]); + break; + } + + if (opt == -1) + einfo (_("%P: unrecognized option '%s'\n"), argv[last_optind]); + } /* Fall through. */ default: @@ -773,10 +717,10 @@ parse_args (unsigned argc, char **argv) ``use only shared libraries'' but, then, we don't currently support shared libraries on HP/UX anyhow. */ if (strcmp (optarg, "archive") == 0) - config.dynamic_link = FALSE; + input_flags.dynamic = FALSE; else if (strcmp (optarg, "shared") == 0 || strcmp (optarg, "default") == 0) - config.dynamic_link = TRUE; + input_flags.dynamic = TRUE; else einfo (_("%P%F: unrecognized -a option `%s'\n"), optarg); break; @@ -805,10 +749,10 @@ parse_args (unsigned argc, char **argv) yyparse (); break; case OPTION_CALL_SHARED: - config.dynamic_link = TRUE; + input_flags.dynamic = TRUE; break; case OPTION_NON_SHARED: - config.dynamic_link = FALSE; + input_flags.dynamic = FALSE; break; case OPTION_CREF: command_line.cref = TRUE; @@ -819,11 +763,9 @@ parse_args (unsigned argc, char **argv) break; case OPTION_DEFSYM: lex_string = optarg; - lex_redirect (optarg); + lex_redirect (optarg, "--defsym", ++defsym_count); parser_input = input_defsym; - parsing_defsym = 1; yyparse (); - parsing_defsym = 0; lex_string = NULL; break; case OPTION_DEMANGLE: @@ -834,7 +776,7 @@ parse_args (unsigned argc, char **argv) style = cplus_demangle_name_to_style (optarg); if (style == unknown_demangling) - einfo (_("%F%P: unknown demangling style `%s'"), + einfo (_("%F%P: unknown demangling style `%s'\n"), optarg); cplus_demangle_set_style (style); @@ -843,6 +785,10 @@ parse_args (unsigned argc, char **argv) case 'I': /* Used on Solaris. */ case OPTION_DYNAMIC_LINKER: command_line.interpreter = optarg; + link_info.nointerp = 0; + break; + case OPTION_NO_DYNAMIC_LINKER: + link_info.nointerp = 1; break; case OPTION_SYSROOT: /* Already handled in ldmain.c. */ @@ -934,17 +880,17 @@ parse_args (unsigned argc, char **argv) case 'N': config.text_read_only = FALSE; config.magic_demand_paged = FALSE; - config.dynamic_link = FALSE; + input_flags.dynamic = FALSE; break; case OPTION_NO_OMAGIC: config.text_read_only = TRUE; config.magic_demand_paged = TRUE; - /* NB/ Does not set dynamic_link to TRUE. + /* NB/ Does not set input_flags.dynamic to TRUE. Use --call-shared or -Bdynamic for this. */ break; case 'n': config.magic_demand_paged = FALSE; - config.dynamic_link = FALSE; + input_flags.dynamic = FALSE; break; case OPTION_NO_DEFINE_COMMON: command_line.inhibit_common_definition = TRUE; @@ -1040,7 +986,7 @@ parse_args (unsigned argc, char **argv) config.only_cmd_line_lib_dirs = TRUE; break; case OPTION_NO_WHOLE_ARCHIVE: - whole_archive = FALSE; + input_flags.whole_archive = FALSE; break; case 'O': /* FIXME "-O " used to set the address of @@ -1058,15 +1004,21 @@ parse_args (unsigned argc, char **argv) case OPTION_OFORMAT: lang_add_output_format (optarg, NULL, NULL, 0); break; + case OPTION_PRINT_SYSROOT: + if (*ld_sysroot) + puts (ld_sysroot); + xexit (0); + break; + case OPTION_PRINT_OUTPUT_FORMAT: + command_line.print_output_format = TRUE; + break; #ifdef ENABLE_PLUGINS case OPTION_PLUGIN: - if (plugin_opt_plugin (optarg)) - einfo (_("%P%F: %s: error loading plugin\n"), - plugin_error_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 (_("%P%F: bad -plugin-opt option\n")); break; #endif /* ENABLE_PLUGINS */ case 'q': @@ -1083,13 +1035,17 @@ 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: bad -rpath option\n")); + einfo(_("%P%F: unrecognised option: %s\n"), argv[optind]); + + if (bfd_link_pic (&link_info)) + einfo (_("%P%F: -r and %s may not be used together\n"), + bfd_link_dll (&link_info) ? "-shared" : "-pie"); - link_info.relocatable = TRUE; + link_info.type = type_relocatable; config.build_constructors = FALSE; config.magic_demand_paged = FALSE; config.text_read_only = FALSE; - config.dynamic_link = FALSE; + input_flags.dynamic = FALSE; break; case 'R': /* The GNU linker traditionally uses -R to mean to include @@ -1188,7 +1144,10 @@ parse_args (unsigned argc, char **argv) case OPTION_SHARED: if (config.has_shared) { - link_info.shared = TRUE; + if (bfd_link_relocatable (&link_info)) + einfo (_("%P%F: -r and -shared may not be used together\n")); + + link_info.type = type_dll; /* When creating a shared library, the default behaviour is to ignore any unresolved references. */ if (link_info.unresolved_syms_in_objects == RM_NOT_YET_SET) @@ -1202,15 +1161,21 @@ parse_args (unsigned argc, char **argv) case OPTION_PIE: if (config.has_shared) { - link_info.shared = TRUE; - link_info.pie = TRUE; + if (bfd_link_relocatable (&link_info)) + einfo (_("%P%F: -r and -pie may not be used together\n")); + + link_info.type = type_pie; } else einfo (_("%P%F: -pie not supported\n")); break; case 'h': /* Used on Solaris. */ case OPTION_SONAME: - command_line.soname = optarg; + if (optarg[0] == '\0' && command_line.soname + && command_line.soname[0]) + einfo (_("%P: SONAME must not be empty string; keeping previous one\n")); + else + command_line.soname = optarg; break; case OPTION_SORT_COMMON: if (optarg == NULL @@ -1299,6 +1264,12 @@ parse_args (unsigned argc, char **argv) case OPTION_TTEXT_SEGMENT: set_segment_start (".text-segment", optarg); break; + case OPTION_TRODATA_SEGMENT: + set_segment_start (".rodata-segment", optarg); + break; + case OPTION_TLDATA_SEGMENT: + set_segment_start (".ldata-segment", optarg); + break; case OPTION_TRADITIONAL_FORMAT: link_info.traditional_format = TRUE; break; @@ -1306,15 +1277,22 @@ parse_args (unsigned argc, char **argv) link_info.task_link = TRUE; /* Fall through - do an implied -r option. */ case OPTION_UR: - link_info.relocatable = TRUE; + if (bfd_link_pic (&link_info)) + einfo (_("%P%F: -r and %s may not be used together\n"), + bfd_link_dll (&link_info) ? "-shared" : "-pie"); + + link_info.type = type_relocatable; config.build_constructors = TRUE; config.magic_demand_paged = FALSE; config.text_read_only = FALSE; - config.dynamic_link = FALSE; + input_flags.dynamic = FALSE; break; case 'u': ldlang_add_undef (optarg, TRUE); break; + case OPTION_REQUIRE_DEFINED_SYMBOL: + ldlang_add_require_defined (optarg); + break; case OPTION_UNIQUE: if (optarg != NULL) lang_add_unique (optarg); @@ -1324,8 +1302,18 @@ parse_args (unsigned argc, char **argv) case OPTION_VERBOSE: ldversion (1); version_printed = TRUE; - trace_file_tries = TRUE; + verbose = TRUE; overflow_cutoff_limit = -2; + if (optarg != NULL) + { + char *end; + int level ATTRIBUTE_UNUSED = strtoul (optarg, &end, 0); + if (*end) + einfo (_("%P%F: invalid number `%s'\n"), optarg); +#ifdef ENABLE_PLUGINS + report_plugin_symbols = level > 1; +#endif /* ENABLE_PLUGINS */ + } break; case 'v': ldversion (0); @@ -1424,23 +1412,26 @@ parse_args (unsigned argc, char **argv) link_info.warn_alternate_em = TRUE; break; case OPTION_WHOLE_ARCHIVE: - whole_archive = TRUE; + input_flags.whole_archive = TRUE; break; case OPTION_ADD_DT_NEEDED_FOR_DYNAMIC: - add_DT_NEEDED_for_dynamic = TRUE; + input_flags.add_DT_NEEDED_for_dynamic = TRUE; break; case OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC: - add_DT_NEEDED_for_dynamic = FALSE; + input_flags.add_DT_NEEDED_for_dynamic = FALSE; break; case OPTION_ADD_DT_NEEDED_FOR_REGULAR: - add_DT_NEEDED_for_regular = TRUE; + input_flags.add_DT_NEEDED_for_regular = TRUE; break; case OPTION_NO_ADD_DT_NEEDED_FOR_REGULAR: - add_DT_NEEDED_for_regular = FALSE; + input_flags.add_DT_NEEDED_for_regular = FALSE; break; case OPTION_WRAP: add_wrap (optarg); break; + case OPTION_IGNORE_UNRESOLVED_SYMBOL: + add_ignoresym (&link_info, optarg); + break; case OPTION_DISCARD_NONE: link_info.discard = discard_none; break; @@ -1524,9 +1515,50 @@ parse_args (unsigned argc, char **argv) einfo (_("%P%X: --hash-size needs a numeric argument\n")); } break; + + case OPTION_PUSH_STATE: + input_flags.pushed = xmemdup (&input_flags, + sizeof (input_flags), + sizeof (input_flags)); + break; + + case OPTION_POP_STATE: + if (input_flags.pushed == NULL) + einfo (_("%P%F: no state pushed before popping\n")); + else + { + struct lang_input_statement_flags *oldp = input_flags.pushed; + memcpy (&input_flags, oldp, sizeof (input_flags)); + free (oldp); + } + break; + + case OPTION_PRINT_MEMORY_USAGE: + command_line.print_memory_usage = TRUE; + break; + + case OPTION_ORPHAN_HANDLING: + if (strcasecmp (optarg, "place") == 0) + config.orphan_handling = orphan_handling_place; + else if (strcasecmp (optarg, "warn") == 0) + config.orphan_handling = orphan_handling_warn; + else if (strcasecmp (optarg, "error") == 0) + config.orphan_handling = orphan_handling_error; + else if (strcasecmp (optarg, "discard") == 0) + config.orphan_handling = orphan_handling_discard; + else + einfo (_("%P%F: invalid argument to option" + " \"--orphan-handling\"\n")); + break; } } + if (command_line.soname && command_line.soname[0] == '\0') + { + einfo (_("%P: SONAME must not be empty string; ignored\n")); + command_line.soname = NULL; + } + while (ingroup) { lang_leave_group (); @@ -1547,11 +1579,64 @@ parse_args (unsigned argc, char **argv) /* FIXME: Should we allow emulations a chance to set this ? */ link_info.unresolved_syms_in_shared_libs = how_to_report_unresolved_symbols; -#ifdef ENABLE_PLUGINS - /* Now all the plugin arguments have been gathered, we can load them. */ - if (plugin_load_plugins ()) - einfo (_("%P%F: %s: error loading plugin\n"), plugin_error_plugin ()); -#endif /* ENABLE_PLUGINS */ + 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 shared libraries. -Bsymbolic overrides all others and vice + versa. */ + switch (command_line.symbolic) + { + case symbolic_unset: + break; + case symbolic: + /* -Bsymbolic is for shared library only. */ + if (bfd_link_dll (&link_info)) + { + link_info.symbolic = TRUE; + /* Should we free the unused memory? */ + link_info.dynamic_list = NULL; + command_line.dynamic_list = dynamic_list_unset; + } + break; + case symbolic_functions: + /* -Bsymbolic-functions is for shared library only. */ + if (bfd_link_dll (&link_info)) + command_line.dynamic_list = dynamic_list_data; + break; + } + + switch (command_line.dynamic_list) + { + case dynamic_list_unset: + break; + case dynamic_list_data: + link_info.dynamic_data = TRUE; + case dynamic_list: + link_info.dynamic = TRUE; + break; + } + + if (!bfd_link_dll (&link_info)) + { + if (command_line.filter_shlib) + einfo (_("%P%F: -F may not be used without -shared\n")); + if (command_line.auxiliary_filters) + einfo (_("%P%F: -f may not be used without -shared\n")); + } + + /* Treat ld -r -s as ld -r -S -x (i.e., strip all local symbols). I + don't see how else this can be handled, since in this case we + must preserve all externally visible symbols. */ + if (bfd_link_relocatable (&link_info) && link_info.strip == strip_all) + { + link_info.strip = strip_debugger; + if (link_info.discard == discard_sec_merge) + link_info.discard = discard_all; + } } /* Add the (colon-separated) elements of DIRLIST_PTR to the @@ -1620,6 +1705,122 @@ set_segment_start (const char *section, char *valstr) lang_section_start (section, exp_intop (val), seg); } +static void +elf_shlib_list_options (FILE *file) +{ + fprintf (file, _("\ + --audit=AUDITLIB Specify a library to use for auditing\n")); + fprintf (file, _("\ + -Bgroup Selects group name lookup rules for DSO\n")); + fprintf (file, _("\ + --disable-new-dtags Disable new dynamic tags\n")); + fprintf (file, _("\ + --enable-new-dtags Enable new dynamic tags\n")); + fprintf (file, _("\ + --eh-frame-hdr Create .eh_frame_hdr section\n")); + 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")); + fprintf (file, _("\ + -P AUDITLIB, --depaudit=AUDITLIB\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")); + fprintf (file, _("\ + -z initfirst Mark DSO to be initialized first at runtime\n")); + fprintf (file, _("\ + -z interpose Mark object to interpose all DSOs but executable\n")); + fprintf (file, _("\ + -z lazy Mark object lazy runtime binding (default)\n")); + fprintf (file, _("\ + -z loadfltr Mark object requiring immediate process\n")); + fprintf (file, _("\ + -z nocopyreloc Don't create copy relocs\n")); + fprintf (file, _("\ + -z nodefaultlib Mark object not to use default search paths\n")); + fprintf (file, _("\ + -z nodelete Mark DSO non-deletable at runtime\n")); + fprintf (file, _("\ + -z nodlopen Mark DSO not available to dlopen\n")); + fprintf (file, _("\ + -z nodump Mark DSO not available to dldump\n")); + fprintf (file, _("\ + -z now Mark object non-lazy runtime binding\n")); + fprintf (file, _("\ + -z origin Mark object requiring immediate $ORIGIN\n\ + processing at runtime\n")); + fprintf (file, _("\ + -z relro Create RELRO program header\n")); + fprintf (file, _("\ + -z norelro Don't create RELRO program header\n")); + fprintf (file, _("\ + -z stacksize=SIZE Set size of stack segment\n")); + fprintf (file, _("\ + -z text Treat DT_TEXTREL in shared object as error\n")); + fprintf (file, _("\ + -z notext Don't treat DT_TEXTREL in shared object as error\n")); + fprintf (file, _("\ + -z textoff Don't treat DT_TEXTREL in shared object as error\n")); +} + +static void +elf_static_list_options (FILE *file) +{ + fprintf (file, _("\ + --build-id[=STYLE] Generate build ID note\n")); + fprintf (file, _("\ + --compress-debug-sections=[none|zlib|zlib-gnu|zlib-gabi]\n\ + Compress DWARF debug sections using zlib\n")); +#ifdef DEFAULT_FLAG_COMPRESS_DEBUG + fprintf (file, _("\ + Default: zlib-gabi\n")); +#else + fprintf (file, _("\ + 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")); + 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")); +} + +static void +elf_plt_unwind_list_options (FILE *file) +{ + fprintf (file, _("\ + --ld-generated-unwind-info Generate exception handling info for PLT\n\ + --no-ld-generated-unwind-info\n\ + Don't generate exception handling info for PLT\n")); +} + +static void +ld_list_options (FILE *file, bfd_boolean elf, bfd_boolean shlib, + bfd_boolean plt_unwind) +{ + if (!elf) + return; + printf (_("ELF emulations:\n")); + if (plt_unwind) + elf_plt_unwind_list_options (file); + elf_static_list_options (file); + if (shlib) + elf_shlib_list_options (file); +} + /* Print help messages for the options. */ @@ -1732,6 +1933,8 @@ help (void) /* xgettext:c-format */ printf (_("%s: emulation specific options:\n"), program_name); + ld_list_options (stdout, ELF_LIST_OPTIONS, ELF_SHLIB_LIST_OPTIONS, + ELF_PLT_UNWIND_LIST_OPTIONS); ldemul_list_emulation_options (stdout); printf ("\n");