X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=ld%2Flexsup.c;h=20e0271e78fa3dbaa1dae2c65ee02a5bb221a676;hb=a1999d402252588a8087f705f21da889135a222c;hp=be7c0a91262eeef8fe9f13bd74b898811ac46869;hpb=3e3b46e5c8d9d578ea136983b5dd1de82dbff86b;p=deliverable%2Fbinutils-gdb.git diff --git a/ld/lexsup.c b/ld/lexsup.c index be7c0a9126..20e0271e78 100644 --- a/ld/lexsup.c +++ b/ld/lexsup.c @@ -1,27 +1,28 @@ /* Parse options for the GNU linker. Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, - 2001, 2002, 2003, 2004 + 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2011 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, 59 Temple Place - Suite 330, Boston, MA - 02111-1307, 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 "bfd.h" #include "sysdep.h" +#include "bfd.h" +#include "bfdver.h" #include "libiberty.h" #include #include @@ -39,6 +40,9 @@ #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__)) @@ -55,6 +59,7 @@ static void set_default_dirlist (char *); 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. */ @@ -70,21 +75,25 @@ enum option_values 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, @@ -94,33 +103,42 @@ enum option_values 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_NEEDED, - OPTION_NO_ADD_NEEDED, - OPTION_AS_NEEDED, - OPTION_NO_AS_NEEDED, + 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, @@ -135,6 +153,7 @@ enum option_values 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, @@ -149,12 +168,38 @@ enum option_values OPTION_WARN_UNRESOLVED_SYMBOLS, OPTION_ERROR_UNRESOLVED_SYMBOLS, OPTION_WARN_SHARED_TEXTREL, - OPTION_REDUCE_MEMORY_OVERHEADS + OPTION_WARN_ALTERNATE_EM, + OPTION_REDUCE_MEMORY_OVERHEADS, +#ifdef ENABLE_PLUGINS + OPTION_PLUGIN, + OPTION_PLUGIN_OPT, +#endif /* ENABLE_PLUGINS */ + OPTION_DEFAULT_SCRIPT, + OPTION_PRINT_OUTPUT_FORMAT, }; /* 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. */ @@ -166,24 +211,7 @@ 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[] = @@ -206,6 +234,8 @@ 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}, @@ -231,6 +261,8 @@ static const struct ld_option ld_options[] = { {"library-path", required_argument, NULL, 'L'}, 'L', N_("DIRECTORY"), N_("Add DIRECTORY to library search path"), TWO_DASHES }, + { {"sysroot=", required_argument, NULL, OPTION_SYSROOT}, + '\0', NULL, N_("Override the default sysroot location"), TWO_DASHES }, { {NULL, required_argument, NULL, '\0'}, 'm', N_("EMULATION"), N_("Set emulation"), ONE_DASH }, { {"print-map", no_argument, NULL, 'M'}, @@ -247,6 +279,18 @@ 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 */ { {"Qy", no_argument, NULL, OPTION_IGNORE}, '\0', NULL, N_("Ignored for SVR4 compatibility"), ONE_DASH }, { {"emit-relocs", no_argument, NULL, 'q'}, @@ -270,6 +314,10 @@ static const struct ld_option ld_options[] = 't', NULL, N_("Trace file opens"), TWO_DASHES }, { {"script", required_argument, NULL, 'T'}, 'T', N_("FILE"), N_("Read linker script"), TWO_DASHES }, + { {"default-script", required_argument, NULL, OPTION_DEFAULT_SCRIPT}, + '\0', N_("FILE"), N_("Read default linker script"), TWO_DASHES }, + { {"dT", required_argument, NULL, OPTION_DEFAULT_SCRIPT}, + '\0', NULL, NULL, ONE_DASH }, { {"undefined", required_argument, NULL, 'u'}, 'u', N_("SYMBOL"), N_("Start with undefined reference to SYMBOL"), TWO_DASHES }, @@ -306,17 +354,21 @@ 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 }, @@ -336,12 +388,23 @@ static const struct ld_option ld_options[] = '\0', NULL, NULL, ONE_DASH }, { {"Bsymbolic", no_argument, NULL, OPTION_SYMBOLIC}, '\0', NULL, N_("Bind global references locally"), ONE_DASH }, + { {"Bsymbolic-functions", no_argument, NULL, OPTION_SYMBOLIC_FUNCTIONS}, + '\0', NULL, N_("Bind global function references locally"), ONE_DASH }, { {"check-sections", no_argument, NULL, OPTION_CHECK_SECTIONS}, '\0', NULL, N_("Check section addresses for overlaps (default)"), TWO_DASHES }, { {"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}, @@ -354,6 +417,9 @@ 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}, @@ -364,6 +430,12 @@ static const struct ld_option ld_options[] = { {"no-gc-sections", no_argument, NULL, OPTION_NO_GC_SECTIONS}, '\0', NULL, N_("Don't remove unused sections (default)"), TWO_DASHES }, + { {"print-gc-sections", no_argument, NULL, OPTION_PRINT_GC_SECTIONS}, + '\0', NULL, N_("List removed unused sections on stderr"), + TWO_DASHES }, + { {"no-print-gc-sections", no_argument, NULL, OPTION_NO_PRINT_GC_SECTIONS}, + '\0', NULL, N_("Do not list removed unused sections"), + TWO_DASHES }, { {"hash-size=", required_argument, NULL, OPTION_HASH_SIZE}, '\0', NULL, N_("Set default hash table size close to "), TWO_DASHES }, @@ -383,7 +455,7 @@ 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}, @@ -396,8 +468,16 @@ static const struct ld_option ld_options[] = '\0', NULL, N_("Disallow undefined version"), TWO_DASHES }, { {"default-symver", no_argument, NULL, OPTION_DEFAULT_SYMVER}, '\0', NULL, N_("Create default symbol version"), TWO_DASHES }, + { {"default-imported-symver", no_argument, NULL, + OPTION_DEFAULT_IMPORTED_SYMVER}, + '\0', NULL, N_("Create default symbol version for imported symbols"), + 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}, @@ -407,10 +487,13 @@ 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 }, { {"qmagic", no_argument, NULL, OPTION_IGNORE}, '\0', NULL, N_("Ignored for Linux compatibility"), ONE_DASH }, { {"reduce-memory-overheads", no_argument, NULL, @@ -418,7 +501,9 @@ 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 }, @@ -435,8 +520,10 @@ 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}, @@ -468,13 +555,17 @@ 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 }, { {"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 }, @@ -482,7 +573,16 @@ 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}, + '\0', NULL, N_("Use C++ operator new/delete dynamic list"), TWO_DASHES }, + { {"dynamic-list-cpp-typeinfo", no_argument, NULL, OPTION_DYNAMIC_LIST_CPP_TYPEINFO}, + '\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 }, { {"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}, @@ -498,6 +598,9 @@ static const struct ld_option ld_options[] = { {"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 }, @@ -526,9 +629,11 @@ 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 @@ -613,7 +718,7 @@ 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; } @@ -656,6 +761,8 @@ parse_args (unsigned argc, char **argv) { case '?': einfo (_("%P: unrecognized option '%s'\n"), argv[last_optind]); + /* Fall through. */ + default: einfo (_("%P%F: use the --help option for usage information\n")); @@ -741,6 +848,9 @@ parse_args (unsigned argc, char **argv) case OPTION_DYNAMIC_LINKER: command_line.interpreter = optarg; break; + case OPTION_SYSROOT: + /* Already handled in ldmain.c. */ + break; case OPTION_EB: command_line.endian = ENDIAN_BIG; break; @@ -754,13 +864,17 @@ 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; } @@ -772,8 +886,8 @@ 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; @@ -797,7 +911,10 @@ parse_args (unsigned argc, char **argv) /* Ignore. */ break; case OPTION_GC_SECTIONS: - command_line.gc_sections = TRUE; + link_info.gc_sections = TRUE; + break; + case OPTION_PRINT_GC_SECTIONS: + link_info.print_gc_sections = TRUE; break; case OPTION_HELP: help (); @@ -840,7 +957,10 @@ parse_args (unsigned argc, char **argv) demangling = FALSE; break; case OPTION_NO_GC_SECTIONS: - command_line.gc_sections = FALSE; + link_info.gc_sections = FALSE; + break; + case OPTION_NO_PRINT_GC_SECTIONS: + link_info.print_gc_sections = FALSE; break; case OPTION_NO_KEEP_MEMORY: link_info.keep_memory = FALSE; @@ -908,9 +1028,15 @@ parse_args (unsigned argc, char **argv) case OPTION_DEFAULT_SYMVER: link_info.create_default_symver = TRUE; break; + case OPTION_DEFAULT_IMPORTED_SYMVER: + link_info.default_imported_symver = TRUE; + break; 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; @@ -936,6 +1062,20 @@ parse_args (unsigned argc, char **argv) case OPTION_OFORMAT: lang_add_output_format (optarg, NULL, NULL, 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 ()); + 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; @@ -992,17 +1132,14 @@ parse_args (unsigned argc, char **argv) /* First see whether OPTARG is already in the path. */ do { - size_t idx = 0; - - while (optarg[idx] != '\0' && optarg[idx] == cp[idx]) - ++idx; - if (optarg[idx] == '\0' - && (cp[idx] == '\0' || cp[idx] == ':')) + if (strncmp (optarg, cp, optarg_len) == 0 + && (cp[optarg_len] == 0 + || cp[optarg_len] == config.rpath_separator)) /* We found it. */ break; /* Not yet found. */ - cp = strchr (cp, ':'); + cp = strchr (cp, config.rpath_separator); if (cp != NULL) ++cp; } @@ -1010,8 +1147,9 @@ parse_args (unsigned argc, char **argv) if (cp == NULL) { - buf = xmalloc (rpath_len + optarg_len + 2); - sprintf (buf, "%s:%s", command_line.rpath, optarg); + buf = (char *) xmalloc (rpath_len + optarg_len + 2); + sprintf (buf, "%s%c%s", command_line.rpath, + config.rpath_separator, optarg); free (command_line.rpath); command_line.rpath = buf; } @@ -1024,16 +1162,20 @@ parse_args (unsigned argc, char **argv) { char *buf; - buf = xmalloc (strlen (command_line.rpath_link) - + strlen (optarg) - + 2); - sprintf (buf, "%s:%s", command_line.rpath_link, optarg); + 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); @@ -1078,7 +1220,14 @@ parse_args (unsigned argc, char **argv) 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) @@ -1093,15 +1242,23 @@ parse_args (unsigned argc, char **argv) config.stats = TRUE; break; case OPTION_SYMBOLIC: - link_info.symbolic = TRUE; + command_line.symbolic = symbolic; + break; + case OPTION_SYMBOLIC_FUNCTIONS: + command_line.symbolic = symbolic_functions; break; case 't': 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; break; case OPTION_SECTION_START: { @@ -1125,7 +1282,7 @@ 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; @@ -1138,13 +1295,16 @@ parse_args (unsigned argc, char **argv) ldemul_list_emulation_options (stdout); exit (0); case OPTION_TBSS: - set_section_start (".bss", optarg); + set_segment_start (".bss", optarg); break; case OPTION_TDATA: - set_section_start (".data", optarg); + set_segment_start (".data", optarg); break; case OPTION_TTEXT: - set_section_start (".text", optarg); + set_segment_start (".text", optarg); + break; + case OPTION_TTEXT_SEGMENT: + set_segment_start (".text-segment", optarg); break; case OPTION_TRADITIONAL_FORMAT: link_info.traditional_format = TRUE; @@ -1160,7 +1320,7 @@ parse_args (unsigned argc, char **argv) config.dynamic_link = FALSE; break; case 'u': - ldlang_add_undef (optarg); + ldlang_add_undef (optarg, TRUE); break; case OPTION_UNIQUE: if (optarg != NULL) @@ -1173,6 +1333,16 @@ parse_args (unsigned argc, char **argv) version_printed = TRUE; trace_file_tries = 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); @@ -1206,6 +1376,43 @@ parse_args (unsigned argc, char **argv) .exports sections. */ 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; + 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; + 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; + break; + case OPTION_DYNAMIC_LIST: + /* This option indicates a small script that only specifies + a dynamic 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; + 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; break; @@ -1215,6 +1422,9 @@ 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; @@ -1227,20 +1437,23 @@ parse_args (unsigned argc, char **argv) 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; break; - case OPTION_ADD_NEEDED: - add_needed = TRUE; + case OPTION_ADD_DT_NEEDED_FOR_DYNAMIC: + add_DT_NEEDED_for_dynamic = TRUE; break; - case OPTION_NO_ADD_NEEDED: - add_needed = FALSE; + case OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC: + add_DT_NEEDED_for_dynamic = FALSE; break; - case OPTION_AS_NEEDED: - as_needed = TRUE; + case OPTION_ADD_DT_NEEDED_FOR_REGULAR: + add_DT_NEEDED_for_regular = TRUE; break; - case OPTION_NO_AS_NEEDED: - as_needed = FALSE; + case OPTION_NO_ADD_DT_NEEDED_FOR_REGULAR: + add_DT_NEEDED_for_regular = FALSE; break; case OPTION_WRAP: add_wrap (optarg); @@ -1255,7 +1468,7 @@ parse_args (unsigned argc, char **argv) link_info.discard = discard_all; break; case 'Y': - if (strncmp (optarg, "P,", 2) == 0) + if (CONST_STRNEQ (optarg, "P,")) optarg += 2; if (default_dirlist != NULL) free (default_dirlist); @@ -1280,10 +1493,10 @@ 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; @@ -1292,18 +1505,15 @@ 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: @@ -1315,7 +1525,7 @@ parse_args (unsigned argc, char **argv) break; case OPTION_REDUCE_MEMORY_OVERHEADS: - command_line.reduce_memory_overheads = TRUE; + link_info.reduce_memory_overheads = TRUE; if (config.hash_table_size == 0) config.hash_table_size = 1021; break; @@ -1334,8 +1544,11 @@ parse_args (unsigned argc, char **argv) } } - if (ingroup) - lang_leave_group (); + while (ingroup) + { + lang_leave_group (); + ingroup--; + } if (default_dirlist != NULL) { @@ -1350,6 +1563,72 @@ 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 @@ -1380,8 +1659,44 @@ set_section_start (char *sect, char *valstr) bfd_vma val = bfd_scan_vma (valstr, &end, 16); if (*end) einfo (_("%P%F: invalid hex number `%s'\n"), valstr); - lang_section_start (sect, exp_intop (val)); + lang_section_start (sect, exp_intop (val), NULL); } + +static void +set_segment_start (const char *section, char *valstr) +{ + const char *name; + const char *end; + segment_type *seg; + + bfd_vma val = bfd_scan_vma (valstr, &end, 16); + if (*end) + einfo (_("%P%F: invalid hex number `%s'\n"), valstr); + /* If we already have an entry for this segment, update the existing + value. */ + name = section + 1; + for (seg = segments; seg; seg = seg->next) + if (strcmp (seg->name, name) == 0) + { + seg->value = val; + return; + } + /* There was no existing value so we must create a new segment + entry. */ + seg = (segment_type *) stat_alloc (sizeof (*seg)); + seg->name = name; + seg->value = val; + seg->used = FALSE; + /* Add it to the linked list of segments. */ + seg->next = segments; + segments = seg; + /* Historically, -Ttext and friends set the base address of a + particular section. For backwards compatibility, we still do + that. If a SEGMENT_START directive is seen, the section address + assignment will be disabled. */ + lang_section_start (section, exp_intop (val), seg); +} + /* Print help messages for the options. */ @@ -1390,6 +1705,7 @@ help (void) { unsigned i; const char **targets, **pp; + int len; printf (_("Usage: %s [options] file...\n"), program_name); @@ -1399,7 +1715,6 @@ help (void) if (ld_options[i].doc != NULL) { bfd_boolean comma; - int len; unsigned j; printf (" "); @@ -1472,6 +1787,10 @@ help (void) printf ("%s\n", _(ld_options[i].doc)); } } + printf (_(" @FILE")); + for (len = strlen (" @FILE"); len < 30; len++) + putchar (' '); + printf (_("Read options from FILE\n")); /* Note: Various tools (such as libtool) depend upon the format of the listings below - do not change them. */ @@ -1493,5 +1812,6 @@ help (void) ldemul_list_emulation_options (stdout); printf ("\n"); - printf (_("Report bugs to %s\n"), REPORT_BUGS_TO); + if (REPORT_BUGS_TO[0]) + printf (_("Report bugs to %s\n"), REPORT_BUGS_TO); }