X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=ld%2Flexsup.c;h=b618241f0d89bffc3d6cc235cd59215f6d9d03f6;hb=0ce398f106dac65c3a1d2f7d254213fa652af089;hp=287a46398b8b836c64a31afb11548f1f9507008b;hpb=c76308d222c1144f80f5cd36e8c69952a2594d0a;p=deliverable%2Fbinutils-gdb.git diff --git a/ld/lexsup.c b/ld/lexsup.c index 287a46398b..b618241f0d 100644 --- a/ld/lexsup.c +++ b/ld/lexsup.c @@ -1,29 +1,26 @@ /* Parse options for the GNU linker. - Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, - 2001, 2002, 2003, 2004, 2005, 2006, 2007 - Free Software Foundation, Inc. + Copyright (C) 1991-2015 Free Software Foundation, Inc. - This file is part of GLD, the Gnu Linker. + This file is part of the GNU Binutils. - GLD is free software; you can redistribute it and/or modify + This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. - GLD is distributed in the hope that it will be useful, + This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License - along with GLD; see the file COPYING. If not, write to the Free - Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA - 02110-1301, USA. */ + along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, + MA 02110-1301, USA. */ -#include "config.h" +#include "sysdep.h" #include "bfd.h" #include "bfdver.h" -#include "sysdep.h" #include "libiberty.h" #include #include @@ -41,6 +38,9 @@ #include "ldver.h" #include "ldemul.h" #include "demangle.h" +#ifdef ENABLE_PLUGINS +#include "plugin.h" +#endif /* ENABLE_PLUGINS */ #ifndef PATH_SEPARATOR #if defined (__MSDOS__) || (defined (_WIN32) && ! defined (__CYGWIN32__)) @@ -60,114 +60,28 @@ 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_HELP, - OPTION_IGNORE, - OPTION_MAP, - OPTION_NO_DEMANGLE, - OPTION_NO_KEEP_MEMORY, - OPTION_NO_WARN_MISMATCH, - OPTION_NOINHIBIT_EXEC, - OPTION_NON_SHARED, - OPTION_NO_WHOLE_ARCHIVE, - OPTION_OFORMAT, - OPTION_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_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_WARN_MULTIPLE_GP, - OPTION_WARN_ONCE, - OPTION_WARN_SECTION_ALIGN, - OPTION_SPLIT_BY_RELOC, - OPTION_SPLIT_BY_FILE , - OPTION_WHOLE_ARCHIVE, - OPTION_ADD_NEEDED, - OPTION_NO_ADD_NEEDED, - OPTION_AS_NEEDED, - OPTION_NO_AS_NEEDED, - 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_REDUCE_MEMORY_OVERHEADS, - 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, + /* Use two dashes before long option name. */ + TWO_DASHES, + /* 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 + the long option name. This feature was added in order to resolve + the confusion about the -omagic command line switch. Is it setting + the output file name to "magic" or is it setting the NMAGIC flag on + the output ? It has been decided that it is setting the output file + name, and that if you want to set the NMAGIC flag you should use -N + or --omagic. */ + EXACTLY_TWO_DASHES, + /* Don't mention this option in --help output. */ + NO_HELP +}; + struct ld_option { /* The long option information. */ @@ -179,24 +93,7 @@ struct ld_option /* The documentation string. If this is NULL, this is a synonym for the previous option. */ const char *doc; - enum { - /* Use one dash before long option name. */ - ONE_DASH, - /* Use two dashes before long option name. */ - TWO_DASHES, - /* 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 - the long option name. This feature was added in order to resolve - the confusion about the -omagic command line switch. Is it setting - the output file name to "magic" or is it setting the NMAGIC flag on - the output ? It has been decided that it is setting the output file - name, and that if you want to set the NMAGIC flag you should use -N - or --omagic. */ - EXACTLY_TWO_DASHES, - /* Don't mention this option in --help output. */ - NO_HELP - } control; + enum control_enum control; }; static const struct ld_option ld_options[] = @@ -219,6 +116,8 @@ static const struct ld_option ld_options[] = '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 }, { {"EB", no_argument, NULL, OPTION_EB}, '\0', NULL, N_("Link big-endian objects"), ONE_DASH }, { {"EL", no_argument, NULL, OPTION_EL}, @@ -262,6 +161,27 @@ static const struct ld_option ld_options[] = 'o', N_("FILE"), N_("Set output file name"), EXACTLY_TWO_DASHES }, { {NULL, required_argument, NULL, '\0'}, 'O', NULL, N_("Optimize output file"), ONE_DASH }, +#ifdef ENABLE_PLUGINS + { {"plugin", required_argument, NULL, OPTION_PLUGIN}, + '\0', N_("PLUGIN"), N_("Load named plugin"), ONE_DASH }, + { {"plugin-opt", required_argument, NULL, OPTION_PLUGIN_OPT}, + '\0', N_("ARG"), N_("Send arg to last-loaded plugin"), ONE_DASH }, + { {"flto", optional_argument, NULL, OPTION_IGNORE}, + '\0', NULL, N_("Ignored for GCC LTO option compatibility"), + ONE_DASH }, + { {"flto-partition=", required_argument, NULL, OPTION_IGNORE}, + '\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'}, @@ -325,17 +245,21 @@ static const struct ld_option ld_options[] = OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH}, '\0', NULL, N_("Reject input files whose architecture is unknown"), TWO_DASHES }, - { {"add-needed", no_argument, NULL, OPTION_ADD_NEEDED}, - '\0', NULL, N_("Set DT_NEEDED tags for DT_NEEDED entries in\n" - "\t\t\t\tfollowing dynamic libs"), TWO_DASHES }, - { {"no-add-needed", no_argument, NULL, OPTION_NO_ADD_NEEDED}, - '\0', NULL, N_("Do not set DT_NEEDED tags for DT_NEEDED entries\n" - "\t\t\t\tin following dynamic libs"), TWO_DASHES }, - { {"as-needed", no_argument, NULL, OPTION_AS_NEEDED}, + + /* The next two options are deprecated because of their similarity to + --as-needed and --no-as-needed. They have been replaced by + --copy-dt-needed-entries and --no-copy-dt-needed-entries. */ + { {"add-needed", no_argument, NULL, OPTION_ADD_DT_NEEDED_FOR_DYNAMIC}, + '\0', NULL, NULL, NO_HELP }, + { {"no-add-needed", no_argument, NULL, OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC}, + '\0', NULL, NULL, NO_HELP }, + + { {"as-needed", no_argument, NULL, OPTION_ADD_DT_NEEDED_FOR_REGULAR}, '\0', NULL, N_("Only set DT_NEEDED for following dynamic libs if used"), TWO_DASHES }, - { {"no-as-needed", no_argument, NULL, OPTION_NO_AS_NEEDED}, - '\0', NULL, N_("Always set DT_NEEDED for following dynamic libs"), + { {"no-as-needed", no_argument, NULL, OPTION_NO_ADD_DT_NEEDED_FOR_REGULAR}, + '\0', NULL, N_("Always set DT_NEEDED for dynamic libraries mentioned on\n" + " the command line"), TWO_DASHES }, { {"assert", required_argument, NULL, OPTION_ASSERT}, '\0', N_("KEYWORD"), N_("Ignored for SunOS compatibility"), ONE_DASH }, @@ -363,6 +287,15 @@ static const struct ld_option ld_options[] = { {"no-check-sections", no_argument, NULL, OPTION_NO_CHECK_SECTIONS}, '\0', NULL, N_("Do not check section addresses for overlaps"), TWO_DASHES }, + { {"copy-dt-needed-entries", no_argument, NULL, + OPTION_ADD_DT_NEEDED_FOR_DYNAMIC}, + '\0', NULL, N_("Copy DT_NEEDED links mentioned inside DSOs that follow"), + TWO_DASHES }, + { {"no-copy-dt-needed-entries", no_argument, NULL, + OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC}, + '\0', NULL, N_("Do not copy DT_NEEDED links mentioned inside DSOs that follow"), + TWO_DASHES }, + { {"cref", no_argument, NULL, OPTION_CREF}, '\0', NULL, N_("Output cross reference table"), TWO_DASHES }, { {"defsym", required_argument, NULL, OPTION_DEFSYM}, @@ -375,6 +308,9 @@ static const struct ld_option ld_options[] = { {"fatal-warnings", no_argument, NULL, OPTION_WARN_FATAL}, '\0', NULL, N_("Treat warnings as errors"), TWO_DASHES }, + { {"no-fatal-warnings", no_argument, NULL, OPTION_NO_WARN_FATAL}, + '\0', NULL, N_("Do not treat warnings as errors (default)"), + TWO_DASHES }, { {"fini", required_argument, NULL, OPTION_FINI}, '\0', N_("SYMBOL"), N_("Call SYMBOL at unload-time"), ONE_DASH }, { {"force-exe-suffix", no_argument, NULL, OPTION_FORCE_EXE_SUFFIX}, @@ -410,7 +346,7 @@ 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}, @@ -429,6 +365,10 @@ static const struct ld_option ld_options[] = TWO_DASHES }, { {"no-warn-mismatch", no_argument, NULL, OPTION_NO_WARN_MISMATCH}, '\0', NULL, N_("Don't warn about mismatched input files"), TWO_DASHES}, + { {"no-warn-search-mismatch", no_argument, NULL, + OPTION_NO_WARN_SEARCH_MISMATCH}, + '\0', NULL, N_("Don't warn on finding an incompatible library"), + TWO_DASHES}, { {"no-whole-archive", no_argument, NULL, OPTION_NO_WHOLE_ARCHIVE}, '\0', NULL, N_("Turn off --whole-archive"), TWO_DASHES }, { {"noinhibit-exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC}, @@ -438,10 +378,15 @@ static const struct ld_option ld_options[] = '\0', NULL, NULL, NO_HELP }, { {"nostdlib", no_argument, NULL, OPTION_NOSTDLIB}, '\0', NULL, N_("Only use library directories specified on\n" - "\t\t\t\tthe command line"), ONE_DASH }, + " the command line"), + ONE_DASH }, { {"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, @@ -449,7 +394,9 @@ static const struct ld_option ld_options[] = '\0', NULL, N_("Reduce memory overheads, possibly taking much longer"), TWO_DASHES }, { {"relax", no_argument, NULL, OPTION_RELAX}, - '\0', NULL, N_("Relax branches on certain targets"), TWO_DASHES }, + '\0', NULL, N_("Reduce code size by using target specific optimizations"), TWO_DASHES }, + { {"no-relax", no_argument, NULL, OPTION_NO_RELAX}, + '\0', NULL, N_("Do not use relaxation techniques to reduce code size"), TWO_DASHES }, { {"retain-symbols-file", required_argument, NULL, OPTION_RETAIN_SYMBOLS_FILE}, '\0', N_("FILE"), N_("Keep only symbols listed in FILE"), TWO_DASHES }, @@ -466,12 +413,14 @@ static const struct ld_option ld_options[] = '\0', NULL, N_("Create a position independent executable"), ONE_DASH }, { {"pic-executable", no_argument, NULL, OPTION_PIE}, '\0', NULL, NULL, TWO_DASHES }, - { {"sort-common", no_argument, NULL, OPTION_SORT_COMMON}, - '\0', NULL, N_("Sort common symbols by size"), TWO_DASHES }, + { {"sort-common", optional_argument, NULL, OPTION_SORT_COMMON}, + '\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"), @@ -499,13 +448,21 @@ static const struct ld_option ld_options[] = '\0', N_("ADDRESS"), N_("Set address of .data section"), ONE_DASH }, { {"Ttext", required_argument, NULL, OPTION_TTEXT}, '\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" - "\t\t\t\tignore-all, report-all, ignore-in-object-files,\n" - "\t\t\t\tignore-in-shared-libs"), TWO_DASHES }, - { {"verbose", no_argument, NULL, OPTION_VERBOSE}, - '\0', NULL, N_("Output lots of information during link"), TWO_DASHES }, + " ignore-all, report-all, ignore-in-object-files,\n" + " ignore-in-shared-libs"), + 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 }, @@ -513,7 +470,8 @@ static const struct ld_option ld_options[] = { {"version-exports-section", required_argument, NULL, OPTION_VERSION_EXPORTS_SECTION }, '\0', N_("SYMBOL"), N_("Take export symbols list from .exports, using\n" - "\t\t\t\tSYMBOL as the version."), TWO_DASHES }, + " SYMBOL as the version."), + TWO_DASHES }, { {"dynamic-list-data", no_argument, NULL, OPTION_DYNAMIC_LIST_DATA}, '\0', NULL, N_("Add data symbols to dynamic list"), TWO_DASHES }, { {"dynamic-list-cpp-new", no_argument, NULL, OPTION_DYNAMIC_LIST_CPP_NEW}, @@ -531,12 +489,19 @@ static const struct ld_option ld_options[] = '\0', NULL, N_("Warn if the multiple GP values are used"), TWO_DASHES }, { {"warn-once", no_argument, NULL, OPTION_WARN_ONCE}, '\0', NULL, N_("Warn only once per undefined symbol"), TWO_DASHES }, + { {"warn-orphan", no_argument, NULL, OPTION_WARN_ORPHAN}, + '\0', NULL, N_("Warn if any orphan sections are encountered"), TWO_DASHES }, + { {"no-warn-orphan", no_argument, NULL, OPTION_NO_WARN_ORPHAN}, + '\0', NULL, N_("Do not warn if orphan sections are encountered (default)"), TWO_DASHES }, { {"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"), TWO_DASHES }, + { {"warn-alternate-em", no_argument, NULL, OPTION_WARN_ALTERNATE_EM}, + '\0', NULL, N_("Warn if an object has alternate ELF machine code"), + TWO_DASHES }, { {"warn-unresolved-symbols", no_argument, NULL, OPTION_WARN_UNRESOLVED_SYMBOLS}, '\0', NULL, N_("Report unresolved symbols as warnings"), TWO_DASHES }, @@ -548,6 +513,16 @@ 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 }, }; #define OPTION_COUNT ARRAY_SIZE (ld_options) @@ -565,9 +540,11 @@ parse_args (unsigned argc, char **argv) int last_optind; enum report_method how_to_report_unresolved_symbols = RM_GENERATE_ERROR; - shortopts = xmalloc (OPTION_COUNT * 3 + 2); - longopts = xmalloc (sizeof (*longopts) * (OPTION_COUNT + 1)); - really_longopts = xmalloc (sizeof (*really_longopts) * (OPTION_COUNT + 1)); + 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)); /* Starting the short option string with '-' is for programs that expect options and other ARGV-elements in any order and that care about @@ -652,7 +629,7 @@ parse_args (unsigned argc, char **argv) { char *n; - n = xmalloc (strlen (argv[i]) + 20); + n = (char *) xmalloc (strlen (argv[i]) + 20); sprintf (n, "--library=%s", argv[i] + 2); argv[i] = n; } @@ -663,6 +640,7 @@ 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 @@ -711,10 +689,10 @@ 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; @@ -743,10 +721,10 @@ 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; @@ -757,11 +735,9 @@ 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: @@ -772,7 +748,7 @@ 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); @@ -798,13 +774,17 @@ parse_args (unsigned argc, char **argv) case 'E': /* HP/UX compatibility. */ link_info.export_dynamic = TRUE; break; + case OPTION_NO_EXPORT_DYNAMIC: + link_info.export_dynamic = FALSE; + break; case 'e': lang_add_entry (optarg, TRUE); break; case 'f': if (command_line.auxiliary_filters == NULL) { - command_line.auxiliary_filters = xmalloc (2 * sizeof (char *)); + command_line.auxiliary_filters = (char **) + xmalloc (2 * sizeof (char *)); command_line.auxiliary_filters[0] = optarg; command_line.auxiliary_filters[1] = NULL; } @@ -816,8 +796,8 @@ parse_args (unsigned argc, char **argv) c = 0; for (p = command_line.auxiliary_filters; *p != NULL; p++) ++c; - command_line.auxiliary_filters - = xrealloc (command_line.auxiliary_filters, + command_line.auxiliary_filters = (char **) + xrealloc (command_line.auxiliary_filters, (c + 2) * sizeof (char *)); command_line.auxiliary_filters[c] = optarg; command_line.auxiliary_filters[c + 1] = NULL; @@ -868,17 +848,17 @@ 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; @@ -964,6 +944,9 @@ parse_args (unsigned argc, char **argv) case OPTION_NO_WARN_MISMATCH: command_line.warn_mismatch = FALSE; break; + case OPTION_NO_WARN_SEARCH_MISMATCH: + command_line.warn_search_mismatch = FALSE; + break; case OPTION_NOINHIBIT_EXEC: force_make_executable = TRUE; break; @@ -971,7 +954,7 @@ 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 @@ -989,6 +972,23 @@ 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: + plugin_opt_plugin (optarg); + break; + case OPTION_PLUGIN_OPT: + if (plugin_opt_plugin_arg (optarg)) + einfo(_("%P%F: bad -plugin-opt option\n")); + break; +#endif /* ENABLE_PLUGINS */ case 'q': link_info.emitrelocations = TRUE; break; @@ -1003,13 +1003,13 @@ 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]); link_info.relocatable = TRUE; 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 @@ -1060,7 +1060,7 @@ parse_args (unsigned argc, char **argv) if (cp == NULL) { - buf = xmalloc (rpath_len + optarg_len + 2); + buf = (char *) xmalloc (rpath_len + optarg_len + 2); sprintf (buf, "%s%c%s", command_line.rpath, config.rpath_separator, optarg); free (command_line.rpath); @@ -1075,17 +1075,20 @@ parse_args (unsigned argc, char **argv) { char *buf; - buf = xmalloc (strlen (command_line.rpath_link) - + strlen (optarg) - + 2); + buf = (char *) xmalloc (strlen (command_line.rpath_link) + + strlen (optarg) + + 2); sprintf (buf, "%s%c%s", command_line.rpath_link, config.rpath_separator, optarg); free (command_line.rpath_link); command_line.rpath_link = buf; } break; + case OPTION_NO_RELAX: + DISABLE_RELAXATION; + break; case OPTION_RELAX: - command_line.relax = TRUE; + ENABLE_RELAXATION; break; case OPTION_RETAIN_SYMBOLS_FILE: add_keepsyms_file (optarg); @@ -1127,10 +1130,21 @@ parse_args (unsigned argc, char **argv) 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: - config.sort_common = TRUE; + if (optarg == NULL + || strcmp (optarg, N_("descending")) == 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"), + optarg); break; case OPTION_SORT_SECTION: if (strcmp (optarg, N_("name")) == 0) @@ -1154,9 +1168,11 @@ parse_args (unsigned argc, char **argv) trace_files = TRUE; break; case 'T': + previous_script_handle = saved_script_handle; ldfile_open_command_file (optarg); parser_input = input_script; yyparse (); + previous_script_handle = NULL; break; case OPTION_DEFAULT_SCRIPT: command_line.default_script = optarg; @@ -1183,7 +1199,7 @@ parse_args (unsigned argc, char **argv) /* We must copy the section name as set_section_start doesn't do it for us. */ len = optarg2 - optarg; - sec_name = xmalloc (len); + sec_name = (char *) xmalloc (len); memcpy (sec_name, optarg, len - 1); sec_name[len - 1] = 0; @@ -1204,6 +1220,15 @@ parse_args (unsigned argc, char **argv) case OPTION_TTEXT: set_segment_start (".text", optarg); break; + 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; @@ -1215,10 +1240,10 @@ parse_args (unsigned argc, char **argv) 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); + ldlang_add_undef (optarg, TRUE); break; case OPTION_UNIQUE: if (optarg != NULL) @@ -1229,8 +1254,18 @@ 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); @@ -1310,36 +1345,51 @@ parse_args (unsigned argc, char **argv) case OPTION_WARN_FATAL: config.fatal_warnings = TRUE; break; + case OPTION_NO_WARN_FATAL: + config.fatal_warnings = FALSE; + break; case OPTION_WARN_MULTIPLE_GP: config.warn_multiple_gp = TRUE; break; case OPTION_WARN_ONCE: config.warn_once = TRUE; break; + case OPTION_WARN_ORPHAN: + config.warn_orphan = TRUE; + break; + case OPTION_NO_WARN_ORPHAN: + config.warn_orphan = FALSE; + break; case OPTION_WARN_SECTION_ALIGN: config.warn_section_align = TRUE; break; case OPTION_WARN_SHARED_TEXTREL: link_info.warn_shared_textrel = TRUE; break; + case OPTION_WARN_ALTERNATE_EM: + link_info.warn_alternate_em = TRUE; + break; case OPTION_WHOLE_ARCHIVE: - whole_archive = TRUE; + input_flags.whole_archive = TRUE; break; - case OPTION_ADD_NEEDED: - add_needed = TRUE; + case OPTION_ADD_DT_NEEDED_FOR_DYNAMIC: + input_flags.add_DT_NEEDED_for_dynamic = TRUE; break; - case OPTION_NO_ADD_NEEDED: - add_needed = FALSE; + case OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC: + input_flags.add_DT_NEEDED_for_dynamic = FALSE; break; - case OPTION_AS_NEEDED: - as_needed = TRUE; + case OPTION_ADD_DT_NEEDED_FOR_REGULAR: + input_flags.add_DT_NEEDED_for_regular = TRUE; break; - case OPTION_NO_AS_NEEDED: - as_needed = FALSE; + case OPTION_NO_ADD_DT_NEEDED_FOR_REGULAR: + 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; @@ -1375,10 +1425,10 @@ parse_args (unsigned argc, char **argv) config.split_by_file = 1; break; case OPTION_CHECK_SECTIONS: - command_line.check_section_addresses = TRUE; + command_line.check_section_addresses = 1; break; case OPTION_NO_CHECK_SECTIONS: - command_line.check_section_addresses = FALSE; + command_line.check_section_addresses = 0; break; case OPTION_ACCEPT_UNKNOWN_INPUT_ARCH: command_line.accept_unknown_input_arch = TRUE; @@ -1387,18 +1437,15 @@ parse_args (unsigned argc, char **argv) command_line.accept_unknown_input_arch = FALSE; break; case '(': - if (ingroup) - einfo (_("%P%F: may not nest groups (--help for usage)\n")); - lang_enter_group (); - ingroup = 1; + ingroup++; break; case ')': if (! ingroup) einfo (_("%P%F: group ended before it began (--help for usage)\n")); lang_leave_group (); - ingroup = 0; + ingroup--; break; case OPTION_INIT: @@ -1426,11 +1473,37 @@ 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; } } - if (ingroup) - lang_leave_group (); + 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 (); + ingroup--; + } if (default_dirlist != NULL) { @@ -1445,6 +1518,72 @@ parse_args (unsigned argc, char **argv) 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; + + if (link_info.relocatable) + { + if (command_line.check_section_addresses < 0) + command_line.check_section_addresses = 0; + if (link_info.shared) + einfo (_("%P%F: -r and -shared may not be used together\n")); + } + + /* 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 (link_info.shared) + { + 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 (link_info.shared) + 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 (! link_info.shared) + { + 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")); + } + + if (! link_info.shared || link_info.pie) + link_info.executable = TRUE; + + /* 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 (link_info.relocatable && 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 @@ -1499,7 +1638,7 @@ set_segment_start (const char *section, char *valstr) } /* There was no existing value so we must create a new segment entry. */ - seg = stat_alloc (sizeof (*seg)); + seg = (segment_type *) stat_alloc (sizeof (*seg)); seg->name = name; seg->value = val; seg->used = FALSE; @@ -1513,6 +1652,115 @@ 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")); + 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. */ @@ -1625,6 +1873,8 @@ 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");