| /* Parse options for the GNU linker. |
| Copyright (C) 1991-2024 Free Software Foundation, Inc. |
| |
| This file is part of the GNU Binutils. |
| |
| 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 3 of the License, or |
| (at your option) any later version. |
| |
| 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 this program; if not, write to the Free Software |
| Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
| MA 02110-1301, USA. */ |
| |
| #include "sysdep.h" |
| #include "bfd.h" |
| #include "bfdver.h" |
| #include "libiberty.h" |
| #include "filenames.h" |
| #include <stdio.h> |
| #include <string.h> |
| #include <errno.h> |
| #include "safe-ctype.h" |
| #include "getopt.h" |
| #include "bfdlink.h" |
| #include "ctf-api.h" |
| #include "ld.h" |
| #include "ldmain.h" |
| #include "ldmisc.h" |
| #include "ldexp.h" |
| #include "ldlang.h" |
| #include <ldgram.h> |
| #include "ldlex.h" |
| #include "ldfile.h" |
| #include "ldver.h" |
| #include "ldemul.h" |
| #include "demangle.h" |
| #if BFD_SUPPORTS_PLUGINS |
| #include "plugin.h" |
| #endif /* BFD_SUPPORTS_PLUGINS */ |
| |
| #ifndef PATH_SEPARATOR |
| #if defined (__MSDOS__) || (defined (_WIN32) && ! defined (__CYGWIN32__)) |
| #define PATH_SEPARATOR ';' |
| #else |
| #define PATH_SEPARATOR ':' |
| #endif |
| #endif |
| |
| /* Somewhere above, sys/stat.h got included . . . . */ |
| #if !defined(S_ISDIR) && defined(S_IFDIR) |
| #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR) |
| #endif |
| |
| 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); |
| |
| /* 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 = 1, |
| /* Use two dashes before long option name. */ |
| 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 |
| 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. */ |
| struct option opt; |
| /* The short option with the same meaning ('\0' if none). */ |
| char shortopt; |
| /* The name of the argument (NULL if none). */ |
| const char *arg; |
| /* The documentation string. If this is NULL, this is a synonym for |
| the previous option. */ |
| const char *doc; |
| enum control_enum control; |
| }; |
| |
| static const struct ld_option ld_options[] = |
| { |
| { {NULL, required_argument, NULL, '\0'}, |
| 'a', N_("KEYWORD"), N_("Shared library control for HP/UX compatibility"), |
| ONE_DASH }, |
| { {"architecture", required_argument, NULL, 'A'}, |
| 'A', N_("ARCH"), N_("Set architecture") , EXACTLY_TWO_DASHES }, |
| { {"format", required_argument, NULL, 'b'}, |
| 'b', N_("TARGET"), N_("Specify target for following input files"), |
| EXACTLY_TWO_DASHES }, |
| { {"mri-script", required_argument, NULL, 'c'}, |
| 'c', N_("FILE"), N_("Read MRI format linker script"), EXACTLY_TWO_DASHES }, |
| { {"dc", no_argument, NULL, 'd'}, |
| 'd', NULL, N_("Force common symbols to be defined"), ONE_DASH }, |
| { {"dp", no_argument, NULL, 'd'}, |
| '\0', NULL, NULL, ONE_DASH }, |
| { {"dependency-file", required_argument, NULL, OPTION_DEPENDENCY_FILE}, |
| '\0', N_("FILE"), N_("Write dependency file"), TWO_DASHES }, |
| { {"force-group-allocation", no_argument, NULL, |
| OPTION_FORCE_GROUP_ALLOCATION}, |
| '\0', NULL, N_("Force group members out of groups"), TWO_DASHES }, |
| { {"entry", required_argument, NULL, 'e'}, |
| 'e', N_("ADDRESS"), N_("Set start address"), TWO_DASHES }, |
| { {"export-dynamic", no_argument, NULL, OPTION_EXPORT_DYNAMIC}, |
| 'E', NULL, N_("Export all dynamic symbols"), TWO_DASHES }, |
| { {"no-export-dynamic", no_argument, NULL, OPTION_NO_EXPORT_DYNAMIC}, |
| '\0', NULL, N_("Undo the effect of --export-dynamic"), TWO_DASHES }, |
| { {"enable-non-contiguous-regions", no_argument, NULL, OPTION_NON_CONTIGUOUS_REGIONS}, |
| '\0', NULL, N_("Enable support of non-contiguous memory regions"), TWO_DASHES }, |
| { {"enable-non-contiguous-regions-warnings", no_argument, NULL, OPTION_NON_CONTIGUOUS_REGIONS_WARNINGS}, |
| '\0', NULL, N_("Enable warnings when --enable-non-contiguous-regions may cause unexpected behaviour"), TWO_DASHES }, |
| { {"disable-linker-version", no_argument, NULL, OPTION_DISABLE_LINKER_VERSION}, |
| '\0', NULL, N_("Disable the LINKER_VERSION linker script directive"), TWO_DASHES }, |
| { {"enable-linker-version", no_argument, NULL, OPTION_ENABLE_LINKER_VERSION}, |
| '\0', NULL, N_("Enable the LINKER_VERSION linker script directive"), TWO_DASHES }, |
| { {"EB", no_argument, NULL, OPTION_EB}, |
| '\0', NULL, N_("Link big-endian objects"), ONE_DASH }, |
| { {"EL", no_argument, NULL, OPTION_EL}, |
| '\0', NULL, N_("Link little-endian objects"), ONE_DASH }, |
| { {"auxiliary", required_argument, NULL, 'f'}, |
| 'f', N_("SHLIB"), N_("Auxiliary filter for shared object symbol table"), |
| TWO_DASHES }, |
| { {"filter", required_argument, NULL, 'F'}, |
| 'F', N_("SHLIB"), N_("Filter for shared object symbol table"), |
| TWO_DASHES }, |
| { {NULL, no_argument, NULL, '\0'}, |
| 'g', NULL, N_("Ignored"), ONE_DASH }, |
| { {"gpsize", required_argument, NULL, 'G'}, |
| 'G', N_("SIZE"), N_("Small data size (if no size, same as --shared)"), |
| TWO_DASHES }, |
| { {"soname", required_argument, NULL, OPTION_SONAME}, |
| 'h', N_("FILENAME"), N_("Set internal name of shared library"), ONE_DASH }, |
| { {"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'}, |
| 'L', N_("DIRECTORY"), N_("Add DIRECTORY to library search path"), |
| TWO_DASHES }, |
| { {"sysroot=<DIRECTORY>", 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'}, |
| 'M', NULL, N_("Print map file on standard output"), TWO_DASHES }, |
| { {"nmagic", no_argument, NULL, 'n'}, |
| 'n', NULL, N_("Do not page align data"), TWO_DASHES }, |
| { {"omagic", no_argument, NULL, 'N'}, |
| 'N', NULL, N_("Do not page align data, do not make text readonly"), |
| EXACTLY_TWO_DASHES }, |
| { {"no-omagic", no_argument, NULL, OPTION_NO_OMAGIC}, |
| '\0', NULL, N_("Page align data, make text readonly"), |
| EXACTLY_TWO_DASHES }, |
| { {"output", required_argument, NULL, 'o'}, |
| 'o', N_("FILE"), N_("Set output file name"), EXACTLY_TWO_DASHES }, |
| { {NULL, required_argument, NULL, '\0'}, |
| 'O', NULL, N_("Optimize output file"), ONE_DASH }, |
| { {"out-implib", required_argument, NULL, OPTION_OUT_IMPLIB}, |
| '\0', N_("FILE"), N_("Generate import library"), TWO_DASHES }, |
| #if BFD_SUPPORTS_PLUGINS |
| { {"plugin", required_argument, NULL, OPTION_PLUGIN}, |
| '\0', N_("PLUGIN"), N_("Load named plugin"), ONE_DASH }, |
| { {"plugin-opt", required_argument, NULL, OPTION_PLUGIN_OPT}, |
| '\0', N_("ARG"), N_("Send arg to last-loaded plugin"), ONE_DASH }, |
| { {"plugin-save-temps", no_argument, NULL, OPTION_PLUGIN_SAVE_TEMPS}, |
| '\0', NULL, N_("Store plugin intermediate files permanently"), |
| 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 }, |
| #else |
| { {"plugin", required_argument, NULL, OPTION_IGNORE}, |
| '\0', N_("PLUGIN"), N_("Load named plugin (ignored)"), ONE_DASH }, |
| { {"plugin-opt", required_argument, NULL, OPTION_IGNORE}, |
| '\0', N_("ARG"), N_("Send arg to last-loaded plugin (ignored)"), ONE_DASH }, |
| #endif /* BFD_SUPPORTS_PLUGINS */ |
| { {"fuse-ld=", required_argument, NULL, OPTION_IGNORE}, |
| '\0', NULL, N_("Ignored for GCC linker option compatibility"), |
| ONE_DASH }, |
| { {"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'}, |
| 'q', NULL, "Generate relocations in final output", TWO_DASHES }, |
| { {"relocatable", no_argument, NULL, 'r'}, |
| 'r', NULL, N_("Generate relocatable output"), TWO_DASHES }, |
| { {NULL, no_argument, NULL, '\0'}, |
| 'i', NULL, NULL, ONE_DASH }, |
| { {"just-symbols", required_argument, NULL, 'R'}, |
| 'R', N_("FILE"), N_("Just link symbols (if directory, same as --rpath)"), |
| TWO_DASHES }, |
| |
| { {"remap-inputs-file", required_argument, NULL, OPTION_REMAP_INPUTS_FILE}, |
| '\0', N_("FILE"), "Provide a FILE containing input remapings", TWO_DASHES }, |
| { {"remap-inputs", required_argument, NULL, OPTION_REMAP_INPUTS}, |
| '\0', N_("PATTERN=FILE"), "Remap input files matching PATTERN to FILE", TWO_DASHES }, |
| |
| { {"strip-all", no_argument, NULL, 's'}, |
| 's', NULL, N_("Strip all symbols"), TWO_DASHES }, |
| { {"strip-debug", no_argument, NULL, 'S'}, |
| 'S', NULL, N_("Strip debugging symbols"), TWO_DASHES }, |
| { {"strip-discarded", no_argument, NULL, OPTION_STRIP_DISCARDED}, |
| '\0', NULL, N_("Strip symbols in discarded sections"), TWO_DASHES }, |
| { {"no-strip-discarded", no_argument, NULL, OPTION_NO_STRIP_DISCARDED}, |
| '\0', NULL, N_("Do not strip symbols in discarded sections"), TWO_DASHES }, |
| { {"trace", no_argument, NULL, 't'}, |
| '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 }, |
| { {"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 }, |
| { {"Ur", no_argument, NULL, OPTION_UR}, |
| '\0', NULL, N_("Build global constructor/destructor tables"), ONE_DASH }, |
| { {"version", no_argument, NULL, OPTION_VERSION}, |
| 'v', NULL, N_("Print version information"), TWO_DASHES }, |
| { {NULL, no_argument, NULL, '\0'}, |
| 'V', NULL, N_("Print version and emulation information"), ONE_DASH }, |
| { {"discard-all", no_argument, NULL, 'x'}, |
| 'x', NULL, N_("Discard all local symbols"), TWO_DASHES }, |
| { {"discard-locals", no_argument, NULL, 'X'}, |
| 'X', NULL, N_("Discard temporary local symbols (default)"), TWO_DASHES }, |
| { {"discard-none", no_argument, NULL, OPTION_DISCARD_NONE}, |
| '\0', NULL, N_("Don't discard any local symbols"), TWO_DASHES }, |
| { {"trace-symbol", required_argument, NULL, 'y'}, |
| 'y', N_("SYMBOL"), N_("Trace mentions of SYMBOL"), TWO_DASHES }, |
| { {NULL, required_argument, NULL, '\0'}, |
| 'Y', N_("PATH"), N_("Default search path for Solaris compatibility"), |
| ONE_DASH }, |
| { {"start-group", no_argument, NULL, '('}, |
| '(', NULL, N_("Start a group"), TWO_DASHES }, |
| { {"end-group", no_argument, NULL, ')'}, |
| ')', NULL, N_("End a group"), TWO_DASHES }, |
| { {"accept-unknown-input-arch", no_argument, NULL, |
| OPTION_ACCEPT_UNKNOWN_INPUT_ARCH}, |
| '\0', NULL, |
| N_("Accept input files whose architecture cannot be determined"), |
| TWO_DASHES }, |
| { {"no-accept-unknown-input-arch", no_argument, NULL, |
| OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH}, |
| '\0', NULL, N_("Reject input files whose architecture is unknown"), |
| TWO_DASHES }, |
| |
| /* 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_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 }, |
| { {"Bdynamic", no_argument, NULL, OPTION_CALL_SHARED}, |
| '\0', NULL, N_("Link against shared libraries"), ONE_DASH }, |
| { {"dy", no_argument, NULL, OPTION_CALL_SHARED}, |
| '\0', NULL, NULL, ONE_DASH }, |
| { {"call_shared", no_argument, NULL, OPTION_CALL_SHARED}, |
| '\0', NULL, NULL, ONE_DASH }, |
| { {"Bstatic", no_argument, NULL, OPTION_NON_SHARED}, |
| '\0', NULL, N_("Do not link against shared libraries"), ONE_DASH }, |
| { {"dn", no_argument, NULL, OPTION_NON_SHARED}, |
| '\0', NULL, NULL, ONE_DASH }, |
| { {"non_shared", no_argument, NULL, OPTION_NON_SHARED}, |
| '\0', NULL, NULL, ONE_DASH }, |
| { {"static", no_argument, NULL, OPTION_NON_SHARED}, |
| '\0', NULL, NULL, ONE_DASH }, |
| { {"Bno-symbolic", no_argument, NULL, OPTION_NO_SYMBOLIC}, |
| '\0', NULL, N_("Don't bind global references locally"), 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}, |
| '\0', N_("SYMBOL=EXPRESSION"), N_("Define a symbol"), TWO_DASHES }, |
| { {"demangle", optional_argument, NULL, OPTION_DEMANGLE}, |
| '\0', N_("[=STYLE]"), N_("Demangle symbol names [using STYLE]"), |
| TWO_DASHES }, |
| { {"disable-multiple-abs-defs", no_argument, NULL, |
| OPTION_DISABLE_MULTIPLE_DEFS_ABS}, |
| '\0', NULL, N_("Do not allow multiple definitions with symbols included\n" |
| " in filename invoked by -R " |
| "or --just-symbols"), |
| TWO_DASHES}, |
| { {"embedded-relocs", no_argument, NULL, OPTION_EMBEDDED_RELOCS}, |
| '\0', NULL, N_("Generate embedded relocs"), TWO_DASHES}, |
| { {"fatal-warnings", no_argument, NULL, OPTION_WARN_FATAL}, |
| '\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}, |
| '\0', NULL, N_("Force generation of file with .exe suffix"), TWO_DASHES}, |
| { {"gc-sections", no_argument, NULL, OPTION_GC_SECTIONS}, |
| '\0', NULL, N_("Remove unused sections (on some targets)"), |
| TWO_DASHES }, |
| { {"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 }, |
| { {"gc-keep-exported", no_argument, NULL, OPTION_GC_KEEP_EXPORTED}, |
| '\0', NULL, N_("Keep exported symbols when removing unused sections"), |
| TWO_DASHES }, |
| { {"hash-size=<NUMBER>", required_argument, NULL, OPTION_HASH_SIZE}, |
| '\0', NULL, N_("Set default hash table size close to <NUMBER>"), |
| TWO_DASHES }, |
| { {"help", no_argument, NULL, OPTION_HELP}, |
| '\0', NULL, N_("Print option help"), TWO_DASHES }, |
| { {"init", required_argument, NULL, OPTION_INIT}, |
| '\0', N_("SYMBOL"), N_("Call SYMBOL at load-time"), ONE_DASH }, |
| { {"Map", required_argument, NULL, OPTION_MAP}, |
| '\0', N_("FILE/DIR"), N_("Write a linker map to FILE or DIR/<outputname>.map"), ONE_DASH }, |
| { {"no-define-common", no_argument, NULL, OPTION_NO_DEFINE_COMMON}, |
| '\0', NULL, N_("Do not define Common storage"), TWO_DASHES }, |
| { {"no-demangle", no_argument, NULL, OPTION_NO_DEMANGLE }, |
| '\0', NULL, N_("Do not demangle symbol names"), TWO_DASHES }, |
| { {"no-keep-memory", no_argument, NULL, OPTION_NO_KEEP_MEMORY}, |
| '\0', NULL, N_("Use less memory and more disk I/O"), TWO_DASHES }, |
| { {"no-undefined", no_argument, NULL, OPTION_NO_UNDEFINED}, |
| '\0', NULL, N_("Do not allow unresolved references in object files"), |
| TWO_DASHES }, |
| { {"no-warnings", no_argument, NULL, OPTION_NO_WARNINGS}, |
| 'w', NULL, N_("Do not display any warning or error messages"), |
| TWO_DASHES }, |
| { {"allow-shlib-undefined", no_argument, NULL, OPTION_ALLOW_SHLIB_UNDEFINED}, |
| '\0', NULL, N_("Allow unresolved references in shared libraries"), |
| TWO_DASHES }, |
| { {"no-allow-shlib-undefined", no_argument, NULL, |
| OPTION_NO_ALLOW_SHLIB_UNDEFINED}, |
| '\0', NULL, N_("Do not allow unresolved references in shared libs"), |
| TWO_DASHES }, |
| { {"allow-multiple-definition", no_argument, NULL, |
| OPTION_ALLOW_MULTIPLE_DEFINITION}, |
| '\0', NULL, N_("Allow multiple definitions"), TWO_DASHES }, |
| #if SUPPORT_ERROR_HANDLING_SCRIPT |
| { {"error-handling-script", required_argument, NULL, |
| OPTION_ERROR_HANDLING_SCRIPT}, |
| '\0', N_("SCRIPT"), N_("Provide a script to help with undefined symbol errors"), TWO_DASHES}, |
| #endif |
| { {"undefined-version", no_argument, NULL, OPTION_UNDEFINED_VERSION}, |
| '\0', NULL, N_("Allow undefined version"), EXACTLY_TWO_DASHES }, |
| { {"no-undefined-version", no_argument, NULL, OPTION_NO_UNDEFINED_VERSION}, |
| '\0', NULL, N_("Disallow undefined version"), TWO_DASHES }, |
| { {"default-symver", no_argument, NULL, OPTION_DEFAULT_SYMVER}, |
| '\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}, |
| '\0', NULL, N_("Create an output file even if errors occur"), |
| TWO_DASHES }, |
| { {"noinhibit_exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC}, |
| '\0', NULL, NULL, NO_HELP }, |
| { {"nostdlib", no_argument, NULL, OPTION_NOSTDLIB}, |
| '\0', NULL, N_("Only use library directories specified on\n" |
| " 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, |
| OPTION_REDUCE_MEMORY_OVERHEADS}, |
| '\0', NULL, N_("Reduce memory overheads, possibly taking much longer"), |
| TWO_DASHES }, |
| { {"max-cache-size=SIZE", required_argument, NULL, |
| OPTION_MAX_CACHE_SIZE}, |
| '\0', NULL, N_("Set the maximum cache size to SIZE bytes"), |
| TWO_DASHES }, |
| { {"relax", no_argument, NULL, OPTION_RELAX}, |
| '\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 }, |
| { {"rpath", required_argument, NULL, OPTION_RPATH}, |
| '\0', N_("PATH"), N_("Set runtime shared library search path"), ONE_DASH }, |
| { {"rpath-link", required_argument, NULL, OPTION_RPATH_LINK}, |
| '\0', N_("PATH"), N_("Set link time shared library search path"), |
| ONE_DASH }, |
| { {"shared", no_argument, NULL, OPTION_SHARED}, |
| '\0', NULL, N_("Create a shared library"), ONE_DASH }, |
| { {"Bshareable", no_argument, NULL, OPTION_SHARED }, /* FreeBSD. */ |
| '\0', NULL, NULL, ONE_DASH }, |
| { {"pie", no_argument, NULL, OPTION_PIE}, |
| '\0', NULL, N_("Create a position independent executable"), ONE_DASH }, |
| { {"pic-executable", no_argument, NULL, OPTION_PIE}, |
| '\0', NULL, NULL, TWO_DASHES }, |
| { {"no-pie", no_argument, NULL, OPTION_NO_PIE}, |
| '\0', NULL, N_("Create a position dependent executable (default)"), ONE_DASH }, |
| { {"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"), |
| N_("Sort sections by name or maximum alignment"), TWO_DASHES }, |
| { {"section-ordering-file", required_argument, NULL, OPTION_SECTION_ORDERING_FILE}, |
| '\0', N_("FILE"), |
| N_("Sort sections by statements in FILE"), TWO_DASHES }, |
| { {"spare-dynamic-tags", required_argument, NULL, OPTION_SPARE_DYNAMIC_TAGS}, |
| '\0', N_("COUNT"), N_("How many tags to reserve in .dynamic section"), |
| TWO_DASHES }, |
| { {"split-by-file", optional_argument, NULL, OPTION_SPLIT_BY_FILE}, |
| '\0', N_("[=SIZE]"), N_("Split output sections every SIZE octets"), |
| TWO_DASHES }, |
| { {"split-by-reloc", optional_argument, NULL, OPTION_SPLIT_BY_RELOC}, |
| '\0', N_("[=COUNT]"), N_("Split output sections every COUNT relocs"), |
| TWO_DASHES }, |
| { {"stats", no_argument, NULL, OPTION_STATS}, |
| '\0', NULL, N_("Print memory usage statistics"), TWO_DASHES }, |
| { {"target-help", no_argument, NULL, OPTION_TARGET_HELP}, |
| '\0', NULL, N_("Display target specific options"), TWO_DASHES }, |
| { {"task-link", required_argument, NULL, OPTION_TASK_LINK}, |
| '\0', N_("SYMBOL"), N_("Do task level linking"), TWO_DASHES }, |
| { {"traditional-format", no_argument, NULL, OPTION_TRADITIONAL_FORMAT}, |
| '\0', NULL, N_("Use same format as native linker"), TWO_DASHES }, |
| { {"section-start", required_argument, NULL, OPTION_SECTION_START}, |
| '\0', N_("SECTION=ADDRESS"), N_("Set address of named section"), |
| TWO_DASHES }, |
| { {"Tbss", required_argument, NULL, OPTION_TBSS}, |
| '\0', N_("ADDRESS"), N_("Set address of .bss section"), ONE_DASH }, |
| { {"Tdata", required_argument, NULL, OPTION_TDATA}, |
| '\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=<method>", required_argument, NULL, |
| OPTION_UNRESOLVED_SYMBOLS}, |
| '\0', NULL, N_("How to handle unresolved symbols. <method> is:\n" |
| " 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 }, |
| '\0', N_("FILE"), N_("Read version information script"), TWO_DASHES }, |
| { {"version-exports-section", required_argument, NULL, |
| OPTION_VERSION_EXPORTS_SECTION }, |
| '\0', N_("SYMBOL"), N_("Take export symbols list from .exports, using\n" |
| " 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 }, |
| { {"export-dynamic-symbol", required_argument, NULL, OPTION_EXPORT_DYNAMIC_SYMBOL}, |
| '\0', N_("SYMBOL"), N_("Export the specified symbol"), EXACTLY_TWO_DASHES }, |
| { {"export-dynamic-symbol-list", required_argument, NULL, OPTION_EXPORT_DYNAMIC_SYMBOL_LIST}, |
| '\0', N_("FILE"), N_("Read export dynamic symbol list"), EXACTLY_TWO_DASHES }, |
| { {"warn-common", no_argument, NULL, OPTION_WARN_COMMON}, |
| '\0', NULL, N_("Warn about duplicate common symbols"), TWO_DASHES }, |
| { {"warn-constructors", no_argument, NULL, OPTION_WARN_CONSTRUCTORS}, |
| '\0', NULL, N_("Warn if global constructors/destructors are seen"), |
| TWO_DASHES }, |
| |
| { {"error-execstack", no_argument, NULL, OPTION_ERROR_EXECSTACK}, |
| '\0', NULL, NULL, TWO_DASHES }, |
| { {"no-error-execstack", no_argument, NULL, OPTION_NO_ERROR_EXECSTACK}, |
| '\0', NULL, NULL, TWO_DASHES }, |
| { {"warn-execstack-objects", no_argument, NULL, OPTION_WARN_EXECSTACK_OBJECTS}, |
| '\0', NULL, NULL, TWO_DASHES }, |
| { {"warn-execstack", no_argument, NULL, OPTION_WARN_EXECSTACK}, |
| '\0', NULL, NULL, TWO_DASHES }, |
| { {"no-warn-execstack", no_argument, NULL, OPTION_NO_WARN_EXECSTACK}, |
| '\0', NULL, NULL, TWO_DASHES }, |
| |
| { {"error-rwx-segments", no_argument, NULL, OPTION_ERROR_RWX_SEGMENTS}, |
| '\0', NULL, NULL, TWO_DASHES }, |
| { {"no-error-rwx-segments", no_argument, NULL, OPTION_NO_ERROR_RWX_SEGMENTS}, |
| '\0', NULL, NULL, TWO_DASHES }, |
| { {"warn-rwx-segments", no_argument, NULL, OPTION_WARN_RWX_SEGMENTS}, |
| '\0', NULL, NULL, TWO_DASHES }, |
| { {"no-warn-rwx-segments", no_argument, NULL, OPTION_NO_WARN_RWX_SEGMENTS}, |
| '\0', NULL, NULL, TWO_DASHES }, |
| |
| { {"warn-multiple-gp", no_argument, NULL, OPTION_WARN_MULTIPLE_GP}, |
| '\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-section-align", no_argument, NULL, OPTION_WARN_SECTION_ALIGN}, |
| '\0', NULL, N_("Warn if start of section changes due to alignment"), |
| TWO_DASHES }, |
| { {"warn-textrel", no_argument, NULL, OPTION_WARN_TEXTREL}, |
| '\0', NULL, |
| #if DEFAULT_LD_TEXTREL_CHECK_WARNING |
| N_("Warn if output has DT_TEXTREL (default)"), |
| #else |
| N_("Warn if output has DT_TEXTREL"), |
| #endif |
| TWO_DASHES }, |
| { {"warn-shared-textrel", no_argument, NULL, OPTION_WARN_TEXTREL}, |
| '\0', NULL, NULL, NO_HELP }, |
| { {"warn-alternate-em", no_argument, NULL, OPTION_WARN_ALTERNATE_EM}, |
| '\0', NULL, N_("Warn if an object has alternate ELF machine code"), |
| TWO_DASHES }, |
| { {"warn-unresolved-symbols", no_argument, NULL, |
| OPTION_WARN_UNRESOLVED_SYMBOLS}, |
| '\0', NULL, N_("Report unresolved symbols as warnings"), TWO_DASHES }, |
| { {"error-unresolved-symbols", no_argument, NULL, |
| OPTION_ERROR_UNRESOLVED_SYMBOLS}, |
| '\0', NULL, N_("Report unresolved symbols as errors"), TWO_DASHES }, |
| { {"whole-archive", no_argument, NULL, OPTION_WHOLE_ARCHIVE}, |
| '\0', NULL, N_("Include all objects from following archives"), |
| 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 }, |
| { {"print-map-discarded", no_argument, NULL, OPTION_PRINT_MAP_DISCARDED}, |
| '\0', NULL, N_("Show discarded sections in map file output (default)"), |
| TWO_DASHES }, |
| { {"no-print-map-discarded", no_argument, NULL, OPTION_NO_PRINT_MAP_DISCARDED}, |
| '\0', NULL, N_("Do not show discarded sections in map file output"), |
| TWO_DASHES }, |
| { {"print-map-locals", no_argument, NULL, OPTION_PRINT_MAP_LOCALS}, |
| '\0', NULL, N_("Show local symbols in map file output"), |
| TWO_DASHES }, |
| { {"no-print-map-locals", no_argument, NULL, OPTION_NO_PRINT_MAP_LOCALS}, |
| '\0', NULL, N_("Do not show local symbols in map file output (default)"), |
| TWO_DASHES }, |
| { {"ctf-variables", no_argument, NULL, OPTION_CTF_VARIABLES}, |
| '\0', NULL, N_("Emit names and types of static variables in CTF"), |
| TWO_DASHES }, |
| { {"no-ctf-variables", no_argument, NULL, OPTION_NO_CTF_VARIABLES}, |
| '\0', NULL, N_("Do not emit names and types of static variables in CTF"), |
| TWO_DASHES }, |
| { {"ctf-share-types=<method>", required_argument, NULL, |
| OPTION_CTF_SHARE_TYPES}, |
| '\0', NULL, N_("How to share CTF types between translation units.\n" |
| " <method> is: share-unconflicted (default),\n" |
| " share-duplicated"), |
| TWO_DASHES }, |
| }; |
| |
| #define OPTION_COUNT ARRAY_SIZE (ld_options) |
| |
| void |
| parse_args (unsigned argc, char **argv) |
| { |
| unsigned i; |
| int is, il, irl; |
| int ingroup = 0; |
| char *default_dirlist = NULL; |
| char *shortopts; |
| struct option *longopts; |
| struct option *really_longopts; |
| int last_optind; |
| enum symbolic_enum |
| { |
| symbolic_unset = 0, |
| symbolic, |
| symbolic_functions, |
| } opt_symbolic = symbolic_unset; |
| enum dynamic_list_enum |
| { |
| dynamic_list_unset = 0, |
| dynamic_list_data, |
| dynamic_list |
| } opt_dynamic_list = dynamic_list_unset; |
| struct bfd_elf_dynamic_list *export_list = NULL; |
| |
| shortopts = (char *) xmalloc (OPTION_COUNT * 3 + 2); |
| longopts = (struct option *) |
| xmalloc (sizeof (*longopts) * (OPTION_COUNT + 1)); |
| really_longopts = (struct option *) |
| xmalloc (sizeof (*really_longopts) * (OPTION_COUNT + 1)); |
| |
| /* Starting the short option string with '-' is for programs that |
| expect options and other ARGV-elements in any order and that care about |
| the ordering of the two. We describe each non-option ARGV-element |
| as if it were the argument of an option with character code 1. */ |
| shortopts[0] = '-'; |
| is = 1; |
| il = 0; |
| irl = 0; |
| for (i = 0; i < OPTION_COUNT; i++) |
| { |
| if (ld_options[i].shortopt != '\0') |
| { |
| shortopts[is] = ld_options[i].shortopt; |
| ++is; |
| if (ld_options[i].opt.has_arg == required_argument |
| || ld_options[i].opt.has_arg == optional_argument) |
| { |
| shortopts[is] = ':'; |
| ++is; |
| if (ld_options[i].opt.has_arg == optional_argument) |
| { |
| shortopts[is] = ':'; |
| ++is; |
| } |
| } |
| } |
| if (ld_options[i].opt.name != NULL) |
| { |
| if (ld_options[i].control == EXACTLY_TWO_DASHES) |
| { |
| really_longopts[irl] = ld_options[i].opt; |
| ++irl; |
| } |
| else |
| { |
| longopts[il] = ld_options[i].opt; |
| ++il; |
| } |
| } |
| } |
| shortopts[is] = '\0'; |
| longopts[il].name = NULL; |
| really_longopts[irl].name = NULL; |
| |
| ldemul_add_options (is, &shortopts, il, &longopts, irl, &really_longopts); |
| |
| /* The -G option is ambiguous on different platforms. Sometimes it |
| specifies the largest data size to put into the small data |
| section. Sometimes it is equivalent to --shared. Unfortunately, |
| the first form takes an argument, while the second does not. |
| |
| We need to permit the --shared form because on some platforms, |
| such as Solaris, gcc -shared will pass -G to the linker. |
| |
| To permit either usage, we look through the argument list. If we |
| find -G not followed by a number, we change it into --shared. |
| This will work for most normal cases. */ |
| for (i = 1; i < argc; i++) |
| if (strcmp (argv[i], "-G") == 0 |
| && (i + 1 >= argc |
| || ! ISDIGIT (argv[i + 1][0]))) |
| argv[i] = (char *) "--shared"; |
| |
| /* Because we permit long options to start with a single dash, and |
| we have a --library option, and the -l option is conventionally |
| used with an immediately following argument, we can have bad |
| results if somebody tries to use -l with a library whose name |
| happens to start with "ibrary", as in -li. We avoid problems by |
| simply turning -l into --library. This means that users will |
| have to use two dashes in order to use --library, which is OK |
| since that's how it is documented. |
| |
| FIXME: It's possible that this problem can arise for other short |
| options as well, although the user does always have the recourse |
| of adding a space between the option and the argument. */ |
| for (i = 1; i < argc; i++) |
| { |
| if (argv[i][0] == '-' |
| && argv[i][1] == 'l' |
| && argv[i][2] != '\0') |
| { |
| char *n; |
| |
| n = (char *) xmalloc (strlen (argv[i]) + 20); |
| sprintf (n, "--library=%s", argv[i] + 2); |
| argv[i] = n; |
| } |
| } |
| |
| last_optind = -1; |
| while (1) |
| { |
| int longind = 0; |
| 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 |
| confusion in the internal static variables maintained by |
| getopt. This could otherwise happen for an argument like |
| -nx, in which the -n is parsed as a single option, and we |
| loop around to pick up the -x. */ |
| if (optind != last_optind) |
| if (ldemul_parse_args (argc, argv)) |
| continue; |
| |
| /* getopt_long_only is like getopt_long, but '-' as well as '--' |
| can indicate a long option. */ |
| opterr = 0; |
| last_optind = optind; |
| optc = getopt_long_only (argc, argv, shortopts, longopts, &longind); |
| if (optc == '?') |
| { |
| optind = last_optind; |
| optc = getopt_long (argc, argv, "-", really_longopts, &longind); |
| } |
| /* Attempt to detect grouped short options, eg: "-non-start". |
| Accepting such options is error prone as it is not clear if the user |
| intended "-n -o n-start" or "--non-start". */ |
| else if (longind == 0 /* This is a short option. */ |
| && optc > 32 /* It is a valid option. */ |
| /* The character is not the second character of argv[last_optind]. */ |
| && optc != argv[last_optind][1]) |
| { |
| if (optarg) |
| einfo (_("%F%P: Error: unable to disambiguate: %s (did you mean -%s ?)\n"), |
| argv[last_optind], argv[last_optind]); |
| else |
| einfo (_("%P: Warning: grouped short command line options are deprecated: %s\n"), argv[last_optind]); |
| } |
| |
| if (ldemul_handle_option (optc)) |
| continue; |
| |
| if (optc == -1) |
| break; |
| |
| switch (optc) |
| { |
| case '?': |
| { |
| /* 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: |
| einfo (_("%F%P: use the --help option for usage information\n")); |
| break; |
| |
| case 1: /* File name. */ |
| lang_add_input_file (optarg, lang_input_file_is_file_enum, NULL); |
| break; |
| |
| case OPTION_IGNORE: |
| break; |
| case 'a': |
| /* For HP/UX compatibility. Actually -a shared should mean |
| ``use only shared libraries'' but, then, we don't |
| currently support shared libraries on HP/UX anyhow. */ |
| if (strcmp (optarg, "archive") == 0) |
| input_flags.dynamic = false; |
| else if (strcmp (optarg, "shared") == 0 |
| || strcmp (optarg, "default") == 0) |
| input_flags.dynamic = true; |
| else |
| einfo (_("%F%P: unrecognized -a option `%s'\n"), optarg); |
| break; |
| case OPTION_ASSERT: |
| /* FIXME: We just ignore these, but we should handle them. */ |
| if (strcmp (optarg, "definitions") == 0) |
| ; |
| else if (strcmp (optarg, "nodefinitions") == 0) |
| ; |
| else if (strcmp (optarg, "nosymbolic") == 0) |
| ; |
| else if (strcmp (optarg, "pure-text") == 0) |
| ; |
| else |
| einfo (_("%F%P: unrecognized -assert option `%s'\n"), optarg); |
| break; |
| case 'A': |
| ldfile_add_arch (optarg); |
| break; |
| case 'b': |
| lang_add_target (optarg); |
| break; |
| case 'c': |
| ldfile_open_command_file (optarg); |
| parser_input = input_mri_script; |
| yyparse (); |
| break; |
| case OPTION_CALL_SHARED: |
| input_flags.dynamic = true; |
| break; |
| case OPTION_NON_SHARED: |
| input_flags.dynamic = false; |
| break; |
| case OPTION_CREF: |
| command_line.cref = true; |
| link_info.notice_all = true; |
| break; |
| case 'd': |
| command_line.force_common_definition = true; |
| break; |
| case OPTION_FORCE_GROUP_ALLOCATION: |
| command_line.force_group_allocation = true; |
| break; |
| case OPTION_DEFSYM: |
| lex_string = optarg; |
| lex_redirect (optarg, "--defsym", ++defsym_count); |
| parser_input = input_defsym; |
| yyparse (); |
| lex_string = NULL; |
| break; |
| case OPTION_DEMANGLE: |
| demangling = true; |
| if (optarg != NULL) |
| { |
| enum demangling_styles style; |
| |
| style = cplus_demangle_name_to_style (optarg); |
| if (style == unknown_demangling) |
| einfo (_("%F%P: unknown demangling style `%s'\n"), |
| optarg); |
| |
| cplus_demangle_set_style (style); |
| } |
| break; |
| 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. */ |
| break; |
| case OPTION_EB: |
| command_line.endian = ENDIAN_BIG; |
| break; |
| case OPTION_EL: |
| command_line.endian = ENDIAN_LITTLE; |
| break; |
| case OPTION_EMBEDDED_RELOCS: |
| command_line.embedded_relocs = true; |
| break; |
| case OPTION_EXPORT_DYNAMIC: |
| case 'E': /* HP/UX compatibility. */ |
| link_info.export_dynamic = true; |
| break; |
| case OPTION_NO_EXPORT_DYNAMIC: |
| link_info.export_dynamic = false; |
| break; |
| case OPTION_NON_CONTIGUOUS_REGIONS: |
| link_info.non_contiguous_regions = true; |
| break; |
| case OPTION_NON_CONTIGUOUS_REGIONS_WARNINGS: |
| link_info.non_contiguous_regions_warnings = true; |
| break; |
| |
| case OPTION_ERROR_EXECSTACK: |
| link_info.error_execstack = 1; |
| break; |
| case OPTION_NO_ERROR_EXECSTACK: |
| link_info.error_execstack = 0; |
| break; |
| case OPTION_WARN_EXECSTACK_OBJECTS: |
| link_info.warn_execstack = 2; |
| break; |
| case OPTION_WARN_EXECSTACK: |
| link_info.warn_execstack = 1; |
| break; |
| case OPTION_NO_WARN_EXECSTACK: |
| link_info.warn_execstack = 0; |
| break; |
| |
| case OPTION_ERROR_RWX_SEGMENTS: |
| link_info.warn_is_error_for_rwx_segments = 1; |
| break; |
| case OPTION_NO_ERROR_RWX_SEGMENTS: |
| link_info.warn_is_error_for_rwx_segments = 0; |
| break; |
| case OPTION_WARN_RWX_SEGMENTS: |
| link_info.no_warn_rwx_segments = 0; |
| link_info.user_warn_rwx_segments = 1; |
| break; |
| case OPTION_NO_WARN_RWX_SEGMENTS: |
| link_info.no_warn_rwx_segments = 1; |
| link_info.user_warn_rwx_segments = 1; |
| break; |
| |
| case 'e': |
| lang_add_entry (optarg, true); |
| break; |
| case 'f': |
| if (command_line.auxiliary_filters == NULL) |
| { |
| command_line.auxiliary_filters = (char **) |
| xmalloc (2 * sizeof (char *)); |
| command_line.auxiliary_filters[0] = optarg; |
| command_line.auxiliary_filters[1] = NULL; |
| } |
| else |
| { |
| int c; |
| char **p; |
| |
| c = 0; |
| for (p = command_line.auxiliary_filters; *p != NULL; p++) |
| ++c; |
| 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; |
| } |
| break; |
| case 'F': |
| command_line.filter_shlib = optarg; |
| break; |
| case OPTION_FORCE_EXE_SUFFIX: |
| command_line.force_exe_suffix = true; |
| break; |
| case 'G': |
| { |
| char *end; |
| g_switch_value = strtoul (optarg, &end, 0); |
| if (*end) |
| einfo (_("%F%P: invalid number `%s'\n"), optarg); |
| } |
| break; |
| case 'g': |
| /* Ignore. */ |
| break; |
| case OPTION_GC_SECTIONS: |
| link_info.gc_sections = true; |
| break; |
| case OPTION_PRINT_GC_SECTIONS: |
| link_info.print_gc_sections = true; |
| break; |
| case OPTION_GC_KEEP_EXPORTED: |
| link_info.gc_keep_exported = true; |
| break; |
| case OPTION_HELP: |
| help (); |
| xexit (0); |
| break; |
| case 'L': |
| /* FIXME: Check the return value ? */ |
| (void) ldfile_add_library_path (optarg, search_dir_cmd_line); |
| break; |
| case 'l': |
| lang_add_input_file (optarg, lang_input_file_is_l_enum, NULL); |
| break; |
| case 'M': |
| config.map_filename = "-"; |
| break; |
| case 'm': |
| /* Ignore. Was handled in a pre-parse. */ |
| break; |
| case OPTION_MAP: |
| config.map_filename = optarg; |
| break; |
| case 'N': |
| config.text_read_only = false; |
| config.magic_demand_paged = false; |
| input_flags.dynamic = false; |
| break; |
| case OPTION_NO_OMAGIC: |
| config.text_read_only = true; |
| config.magic_demand_paged = true; |
| /* NB/ Does not set input_flags.dynamic to TRUE. |
| Use --call-shared or -Bdynamic for this. */ |
| break; |
| case 'n': |
| config.text_read_only = true; |
| config.magic_demand_paged = false; |
| input_flags.dynamic = false; |
| break; |
| case OPTION_NO_DEFINE_COMMON: |
| link_info.inhibit_common_definition = true; |
| break; |
| case OPTION_NO_DEMANGLE: |
| demangling = false; |
| break; |
| case OPTION_NO_GC_SECTIONS: |
| 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; |
| break; |
| case OPTION_NO_UNDEFINED: |
| link_info.unresolved_syms_in_objects = RM_DIAGNOSE; |
| break; |
| case OPTION_ALLOW_SHLIB_UNDEFINED: |
| link_info.unresolved_syms_in_shared_libs = RM_IGNORE; |
| break; |
| case OPTION_NO_ALLOW_SHLIB_UNDEFINED: |
| link_info.unresolved_syms_in_shared_libs = RM_DIAGNOSE; |
| break; |
| case OPTION_UNRESOLVED_SYMBOLS: |
| if (strcmp (optarg, "ignore-all") == 0) |
| { |
| link_info.unresolved_syms_in_objects = RM_IGNORE; |
| link_info.unresolved_syms_in_shared_libs = RM_IGNORE; |
| } |
| else if (strcmp (optarg, "report-all") == 0) |
| { |
| link_info.unresolved_syms_in_objects = RM_DIAGNOSE; |
| link_info.unresolved_syms_in_shared_libs = RM_DIAGNOSE; |
| } |
| else if (strcmp (optarg, "ignore-in-object-files") == 0) |
| { |
| link_info.unresolved_syms_in_objects = RM_IGNORE; |
| link_info.unresolved_syms_in_shared_libs = RM_DIAGNOSE; |
| } |
| else if (strcmp (optarg, "ignore-in-shared-libs") == 0) |
| { |
| link_info.unresolved_syms_in_objects = RM_DIAGNOSE; |
| link_info.unresolved_syms_in_shared_libs = RM_IGNORE; |
| } |
| else |
| einfo (_("%F%P: bad --unresolved-symbols option: %s\n"), optarg); |
| break; |
| case OPTION_WARN_UNRESOLVED_SYMBOLS: |
| link_info.warn_unresolved_syms = true; |
| break; |
| case OPTION_ERROR_UNRESOLVED_SYMBOLS: |
| link_info.warn_unresolved_syms = false; |
| break; |
| case OPTION_ALLOW_MULTIPLE_DEFINITION: |
| link_info.allow_multiple_definition = true; |
| break; |
| |
| #if SUPPORT_ERROR_HANDLING_SCRIPT |
| case OPTION_ERROR_HANDLING_SCRIPT: |
| /* FIXME: Should we warn if the script is being overridden by another ? |
| Or maybe they should be chained together ? */ |
| error_handling_script = optarg; |
| break; |
| #endif |
| |
| case OPTION_ENABLE_LINKER_VERSION: |
| enable_linker_version = true; |
| break; |
| case OPTION_DISABLE_LINKER_VERSION: |
| enable_linker_version = false; |
| break; |
| |
| case OPTION_UNDEFINED_VERSION: |
| link_info.allow_undefined_version = true; |
| break; |
| case OPTION_NO_UNDEFINED_VERSION: |
| link_info.allow_undefined_version = false; |
| break; |
| 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; |
| case OPTION_NOSTDLIB: |
| config.only_cmd_line_lib_dirs = true; |
| break; |
| case OPTION_NO_WHOLE_ARCHIVE: |
| input_flags.whole_archive = false; |
| break; |
| case 'O': |
| /* FIXME "-O<non-digits> <value>" used to set the address of |
| section <non-digits>. Was this for compatibility with |
| something, or can we create a new option to do that |
| (with a syntax similar to -defsym)? |
| getopt can't handle two args to an option without kludges. */ |
| |
| /* Enable optimizations of output files. */ |
| link_info.optimize = strtoul (optarg, NULL, 0) != 0; |
| break; |
| case 'o': |
| lang_add_output (optarg, 0); |
| break; |
| case OPTION_OFORMAT: |
| lang_add_output_format (optarg, NULL, NULL, 0); |
| break; |
| case OPTION_OUT_IMPLIB: |
| command_line.out_implib_filename = xstrdup (optarg); |
| 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; |
| #if BFD_SUPPORTS_PLUGINS |
| case OPTION_PLUGIN: |
| plugin_opt_plugin (optarg); |
| break; |
| case OPTION_PLUGIN_OPT: |
| if (plugin_opt_plugin_arg (optarg)) |
| einfo (_("%F%P: bad -plugin-opt option\n")); |
| break; |
| case OPTION_PLUGIN_SAVE_TEMPS: |
| config.plugin_save_temps = true; |
| break; |
| #endif /* BFD_SUPPORTS_PLUGINS */ |
| case 'q': |
| link_info.emitrelocations = true; |
| break; |
| case 'i': |
| case 'r': |
| if (optind == last_optind) |
| /* This can happen if the user put "-rpath,a" on the command |
| line. (Or something similar. The comma is important). |
| Getopt becomes confused and thinks that this is a -r option |
| but it cannot parse the text after the -r so it refuses to |
| increment the optind counter. Detect this case and issue |
| 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(_("%F%P: unrecognised option: %s\n"), argv[optind]); |
| |
| if (bfd_link_pic (&link_info)) |
| einfo (_("%F%P: -r and %s may not be used together\n"), |
| bfd_link_dll (&link_info) ? "-shared" : "-pie"); |
| |
| link_info.type = type_relocatable; |
| config.build_constructors = false; |
| config.magic_demand_paged = false; |
| config.text_read_only = false; |
| input_flags.dynamic = false; |
| break; |
| case 'R': |
| /* The GNU linker traditionally uses -R to mean to include |
| only the symbols from a file. The Solaris linker uses -R |
| to set the path used by the runtime linker to find |
| libraries. This is the GNU linker -rpath argument. We |
| try to support both simultaneously by checking the file |
| named. If it is a directory, rather than a regular file, |
| we assume -rpath was meant. */ |
| { |
| struct stat s; |
| |
| if (stat (optarg, &s) >= 0 |
| && ! S_ISDIR (s.st_mode)) |
| { |
| lang_add_input_file (optarg, |
| lang_input_file_is_symbols_only_enum, |
| NULL); |
| break; |
| } |
| } |
| /* Fall through. */ |
| case OPTION_RPATH: |
| if (command_line.rpath == NULL) |
| command_line.rpath = xstrdup (optarg); |
| else |
| { |
| size_t rpath_len = strlen (command_line.rpath); |
| size_t optarg_len = strlen (optarg); |
| char *buf; |
| char *cp = command_line.rpath; |
| |
| /* First see whether OPTARG is already in the path. */ |
| do |
| { |
| 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, config.rpath_separator); |
| if (cp != NULL) |
| ++cp; |
| } |
| while (cp != NULL); |
| |
| if (cp == NULL) |
| { |
| 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; |
| } |
| } |
| break; |
| case OPTION_RPATH_LINK: |
| if (command_line.rpath_link == NULL) |
| command_line.rpath_link = xstrdup (optarg); |
| else |
| { |
| char *buf; |
| |
| 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: |
| ENABLE_RELAXATION; |
| break; |
| case OPTION_RETAIN_SYMBOLS_FILE: |
| add_keepsyms_file (optarg); |
| break; |
| case 'S': |
| link_info.strip = strip_debugger; |
| break; |
| case 's': |
| link_info.strip = strip_all; |
| break; |
| case OPTION_STRIP_DISCARDED: |
| link_info.strip_discarded = true; |
| break; |
| case OPTION_NO_STRIP_DISCARDED: |
| link_info.strip_discarded = false; |
| break; |
| case OPTION_DISABLE_MULTIPLE_DEFS_ABS: |
| link_info.prohibit_multiple_definition_absolute = true; |
| break; |
| case OPTION_SHARED: |
| if (config.has_shared) |
| { |
| if (bfd_link_relocatable (&link_info)) |
| einfo (_("%F%P: -r and %s may not be used together\n"), |
| "-shared"); |
| |
| 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) |
| link_info.unresolved_syms_in_objects = RM_IGNORE; |
| if (link_info.unresolved_syms_in_shared_libs == RM_NOT_YET_SET) |
| link_info.unresolved_syms_in_shared_libs = RM_IGNORE; |
| } |
| else |
| einfo (_("%F%P: -shared not supported\n")); |
| break; |
| case OPTION_NO_PIE: |
| link_info.type = type_pde; |
| break; |
| case OPTION_PIE: |
| if (config.has_shared) |
| { |
| if (bfd_link_relocatable (&link_info)) |
| einfo (_("%F%P: -r and %s may not be used together\n"), "-pie"); |
| |
| link_info.type = type_pie; |
| } |
| else |
| einfo (_("%F%P: -pie not supported\n")); |
| break; |
| case 'h': /* Used on Solaris. */ |
| case OPTION_SONAME: |
| 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 |
| || strcmp (optarg, N_("descending")) == 0) |
| config.sort_common = sort_descending; |
| else if (strcmp (optarg, N_("ascending")) == 0) |
| config.sort_common = sort_ascending; |
| else |
| einfo (_("%F%P: invalid common section sorting option: %s\n"), |
| optarg); |
| break; |
| case OPTION_SORT_SECTION: |
| if (strcmp (optarg, N_("name")) == 0) |
| sort_section = by_name; |
| else if (strcmp (optarg, N_("alignment")) == 0) |
| sort_section = by_alignment; |
| else |
| einfo (_("%F%P: invalid section sorting option: %s\n"), |
| optarg); |
| break; |
| case OPTION_SECTION_ORDERING_FILE: |
| if (command_line.section_ordering_file != NULL |
| && strcmp (optarg, command_line.section_ordering_file) != 0) |
| einfo (_("%P: warning: section ordering file changed. Ignoring earlier definition\n")); |
| command_line.section_ordering_file = optarg; |
| break; |
| case OPTION_STATS: |
| config.stats = true; |
| break; |
| case OPTION_NO_SYMBOLIC: |
| opt_symbolic = symbolic_unset; |
| break; |
| case OPTION_SYMBOLIC: |
| opt_symbolic = symbolic; |
| break; |
| case OPTION_SYMBOLIC_FUNCTIONS: |
| opt_symbolic = symbolic_functions; |
| break; |
| case 't': |
| ++trace_files; |
| break; |
| case 'T': |
| previous_script_handle = saved_script_handle; |
| ldfile_open_script_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: |
| { |
| char *optarg2; |
| char *sec_name; |
| int len; |
| |
| /* Check for <something>=<somthing>... */ |
| optarg2 = strchr (optarg, '='); |
| if (optarg2 == NULL) |
| einfo (_("%F%P: invalid argument to option" |
| " \"--section-start\"\n")); |
| |
| optarg2++; |
| |
| /* So far so good. Are all the args present? */ |
| if ((*optarg == '\0') || (*optarg2 == '\0')) |
| einfo (_("%F%P: missing argument(s) to option" |
| " \"--section-start\"\n")); |
| |
| /* We must copy the section name as set_section_start |
| doesn't do it for us. */ |
| len = optarg2 - optarg; |
| sec_name = (char *) xmalloc (len); |
| memcpy (sec_name, optarg, len - 1); |
| sec_name[len - 1] = 0; |
| |
| /* Then set it... */ |
| set_section_start (sec_name, optarg2); |
| } |
| break; |
| case OPTION_TARGET_HELP: |
| /* Mention any target specific options. */ |
| ldemul_list_emulation_options (stdout); |
| exit (0); |
| case OPTION_TBSS: |
| set_segment_start (".bss", optarg); |
| break; |
| case OPTION_TDATA: |
| set_segment_start (".data", optarg); |
| break; |
| 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; |
| case OPTION_TASK_LINK: |
| link_info.task_link = true; |
| /* Fall through. */ |
| case OPTION_UR: |
| if (bfd_link_pic (&link_info)) |
| einfo (_("%F%P: -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; |
| 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); |
| else |
| config.unique_orphan_sections = true; |
| break; |
| case OPTION_VERBOSE: |
| ldversion (1); |
| version_printed = true; |
| verbose = true; |
| overflow_cutoff_limit = -2; |
| if (optarg != NULL) |
| { |
| char *end; |
| int level ATTRIBUTE_UNUSED = strtoul (optarg, &end, 0); |
| if (*end) |
| einfo (_("%F%P: invalid number `%s'\n"), optarg); |
| #if BFD_SUPPORTS_PLUGINS |
| report_plugin_symbols = level > 1; |
| #endif /* BFD_SUPPORTS_PLUGINS */ |
| } |
| break; |
| case 'v': |
| ldversion (0); |
| version_printed = true; |
| break; |
| case 'V': |
| ldversion (1); |
| version_printed = true; |
| break; |
| case OPTION_VERSION: |
| ldversion (2); |
| xexit (0); |
| break; |
| case OPTION_VERSION_SCRIPT: |
| /* This option indicates a small script that only specifies |
| version information. 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_version_script; |
| yyparse (); |
| } |
| break; |
| case OPTION_VERSION_EXPORTS_SECTION: |
| /* This option records a version symbol to be applied to the |
| symbols listed for export to be found in the object files |
| .exports sections. */ |
| command_line.version_exports_section = optarg; |
| break; |
| case OPTION_DYNAMIC_LIST_DATA: |
| opt_dynamic_list = dynamic_list_data; |
| break; |
| case OPTION_DYNAMIC_LIST_CPP_TYPEINFO: |
| lang_append_dynamic_list_cpp_typeinfo (); |
| if (opt_dynamic_list != dynamic_list_data) |
| opt_dynamic_list = dynamic_list; |
| break; |
| case OPTION_DYNAMIC_LIST_CPP_NEW: |
| lang_append_dynamic_list_cpp_new (); |
| if (opt_dynamic_list != dynamic_list_data) |
| opt_dynamic_list = dynamic_list; |
| break; |
| case OPTION_DYNAMIC_LIST: |
| /* This option indicates a small script that only specifies |
| 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; |
| current_dynamic_list_p = &link_info.dynamic_list; |
| yyparse (); |
| } |
| if (opt_dynamic_list != dynamic_list_data) |
| opt_dynamic_list = dynamic_list; |
| break; |
| case OPTION_EXPORT_DYNAMIC_SYMBOL: |
| { |
| struct bfd_elf_version_expr *expr |
| = lang_new_vers_pattern (NULL, xstrdup (optarg), NULL, |
| false); |
| lang_append_dynamic_list (&export_list, expr); |
| } |
| break; |
| case OPTION_EXPORT_DYNAMIC_SYMBOL_LIST: |
| /* This option indicates a small script that only specifies |
| an export list. Read it, but don't assume that we've |
| seen a linker script. */ |
| { |
| FILE *hold_script_handle; |
| |
| hold_script_handle = saved_script_handle; |
| ldfile_open_command_file (optarg); |
| saved_script_handle = hold_script_handle; |
| parser_input = input_dynamic_list; |
| current_dynamic_list_p = &export_list; |
| yyparse (); |
| } |
| break; |
| case OPTION_WARN_COMMON: |
| config.warn_common = true; |
| break; |
| case OPTION_WARN_CONSTRUCTORS: |
| config.warn_constructors = true; |
| break; |
| case OPTION_WARN_FATAL: |
| config.fatal_warnings = true; |
| break; |
| case OPTION_NO_WARN_FATAL: |
| config.fatal_warnings = false; |
| break; |
| case OPTION_NO_WARNINGS: |
| case 'w': |
| config.no_warnings = true; |
| 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_SECTION_ALIGN: |
| config.warn_section_align = true; |
| break; |
| case OPTION_WARN_TEXTREL: |
| link_info.textrel_check = textrel_check_warning; |
| break; |
| case OPTION_WARN_ALTERNATE_EM: |
| link_info.warn_alternate_em = true; |
| break; |
| case OPTION_WHOLE_ARCHIVE: |
| input_flags.whole_archive = true; |
| break; |
| case OPTION_ADD_DT_NEEDED_FOR_DYNAMIC: |
| input_flags.add_DT_NEEDED_for_dynamic = true; |
| break; |
| case OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC: |
| input_flags.add_DT_NEEDED_for_dynamic = false; |
| break; |
| case OPTION_ADD_DT_NEEDED_FOR_REGULAR: |
| input_flags.add_DT_NEEDED_for_regular = true; |
| break; |
| 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; |
| case 'X': |
| link_info.discard = discard_l; |
| break; |
| case 'x': |
| link_info.discard = discard_all; |
| break; |
| case 'Y': |
| if (startswith (optarg, "P,")) |
| optarg += 2; |
| free (default_dirlist); |
| default_dirlist = xstrdup (optarg); |
| break; |
| case 'y': |
| add_ysym (optarg); |
| break; |
| case OPTION_SPARE_DYNAMIC_TAGS: |
| link_info.spare_dynamic_tags = strtoul (optarg, NULL, 0); |
| break; |
| case OPTION_SPLIT_BY_RELOC: |
| if (optarg != NULL) |
| config.split_by_reloc = strtoul (optarg, NULL, 0); |
| else |
| config.split_by_reloc = 32768; |
| break; |
| case OPTION_SPLIT_BY_FILE: |
| if (optarg != NULL) |
| config.split_by_file = bfd_scan_vma (optarg, NULL, 0); |
| else |
| config.split_by_file = 1; |
| break; |
| case OPTION_CHECK_SECTIONS: |
| command_line.check_section_addresses = 1; |
| break; |
| case OPTION_NO_CHECK_SECTIONS: |
| command_line.check_section_addresses = 0; |
| break; |
| case OPTION_ACCEPT_UNKNOWN_INPUT_ARCH: |
| command_line.accept_unknown_input_arch = true; |
| break; |
| case OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH: |
| command_line.accept_unknown_input_arch = false; |
| break; |
| case '(': |
| lang_enter_group (); |
| ingroup++; |
| break; |
| case ')': |
| if (! ingroup) |
| einfo (_("%F%P: group ended before it began (--help for usage)\n")); |
| |
| lang_leave_group (); |
| ingroup--; |
| break; |
| |
| case OPTION_INIT: |
| link_info.init_function = optarg; |
| break; |
| |
| case OPTION_FINI: |
| link_info.fini_function = optarg; |
| break; |
| |
| case OPTION_REMAP_INPUTS_FILE: |
| if (! ldfile_add_remap_file (optarg)) |
| einfo (_("%F%P: failed to add remap file %s\n"), optarg); |
| break; |
| |
| case OPTION_REMAP_INPUTS: |
| { |
| char *optarg2 = strchr (optarg, '='); |
| if (optarg2 == NULL) |
| /* FIXME: Should we allow --remap-inputs=@myfile as a synonym |
| for --remap-inputs-file=myfile ? */ |
| einfo (_("%F%P: invalid argument to option --remap-inputs\n")); |
| size_t len = optarg2 - optarg; |
| char * pattern = xmalloc (len + 1); |
| memcpy (pattern, optarg, len); |
| pattern[len] = 0; |
| ldfile_add_remap (pattern, optarg2 + 1); |
| free (pattern); |
| } |
| break; |
| |
| case OPTION_REDUCE_MEMORY_OVERHEADS: |
| link_info.reduce_memory_overheads = true; |
| if (config.hash_table_size == 0) |
| config.hash_table_size = 1021; |
| break; |
| |
| case OPTION_MAX_CACHE_SIZE: |
| { |
| char *end; |
| bfd_size_type cache_size = strtoul (optarg, &end, 0); |
| if (*end != '\0') |
| einfo (_("%F%P: invalid cache memory size: %s\n"), |
| optarg); |
| link_info.max_cache_size = cache_size; |
| } |
| break; |
| |
| case OPTION_HASH_SIZE: |
| { |
| bfd_size_type new_size; |
| |
| new_size = strtoul (optarg, NULL, 0); |
| if (new_size) |
| config.hash_table_size = new_size; |
| else |
| einfo (_("%X%P: --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 (_("%F%P: 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 (_("%F%P: invalid argument to option" |
| " \"--orphan-handling\"\n")); |
| break; |
| |
| case OPTION_NO_PRINT_MAP_DISCARDED: |
| config.print_map_discarded = false; |
| break; |
| |
| case OPTION_PRINT_MAP_DISCARDED: |
| config.print_map_discarded = true; |
| break; |
| |
| case OPTION_NO_PRINT_MAP_LOCALS: |
| config.print_map_locals = false; |
| break; |
| |
| case OPTION_PRINT_MAP_LOCALS: |
| config.print_map_locals = true; |
| break; |
| |
| case OPTION_DEPENDENCY_FILE: |
| config.dependency_file = optarg; |
| break; |
| |
| case OPTION_CTF_VARIABLES: |
| config.ctf_variables = true; |
| break; |
| |
| case OPTION_NO_CTF_VARIABLES: |
| config.ctf_variables = false; |
| break; |
| |
| case OPTION_CTF_SHARE_TYPES: |
| if (strcmp (optarg, "share-unconflicted") == 0) |
| config.ctf_share_duplicated = false; |
| else if (strcmp (optarg, "share-duplicated") == 0) |
| config.ctf_share_duplicated = true; |
| else |
| einfo (_("%F%P: bad --ctf-share-types option: %s\n"), optarg); |
| break; |
| } |
| } |
| |
| free (really_longopts); |
| free (longopts); |
| free (shortopts); |
| |
| /* Run a couple of checks on the map filename. */ |
| if (config.map_filename) |
| { |
| char * new_name = NULL; |
| char * percent; |
| int res = 0; |
| |
| if (config.map_filename[0] == 0) |
| { |
| einfo (_("%P: no file/directory name provided for map output; ignored\n")); |
| config.map_filename = NULL; |
| } |
| else if (strcmp (config.map_filename, "-") == 0) |
| ; /* Write to stdout. Handled in main(). */ |
| else if ((percent = strchr (config.map_filename, '%')) != NULL) |
| { |
| /* FIXME: Check for a second % character and issue an error ? */ |
| |
| /* Construct a map file by replacing the % character with the (full) |
| output filename. If the % character was the last character in |
| the original map filename then add a .map extension. */ |
| percent[0] = 0; |
| res = asprintf (&new_name, "%s%s%s", config.map_filename, |
| output_filename, |
| percent[1] ? percent + 1 : ".map"); |
| |
| /* FIXME: Should we ensure that any directory components in new_name exist ? */ |
| } |
| else |
| { |
| struct stat s; |
| |
| /* If the map filename is actually a directory then create |
| a file inside it, based upon the output filename. */ |
| if (stat (config.map_filename, &s) < 0) |
| { |
| if (errno != ENOENT) |
| einfo (_("%P: cannot stat linker map file: %E\n")); |
| } |
| else if (S_ISDIR (s.st_mode)) |
| { |
| char lastc = config.map_filename[strlen (config.map_filename) - 1]; |
| res = asprintf (&new_name, "%s%s%s.map", |
| config.map_filename, |
| IS_DIR_SEPARATOR (lastc) ? "" : "/", |
| lbasename (output_filename)); |
| } |
| else if (! S_ISREG (s.st_mode)) |
| { |
| einfo (_("%P: linker map file is not a regular file\n")); |
| config.map_filename = NULL; |
| } |
| /* else FIXME: Check write permission ? */ |
| } |
| |
| if (res < 0) |
| { |
| /* If the asprintf failed then something is probably very |
| wrong. Better to halt now rather than continue on |
| into more problems. */ |
| einfo (_("%P%F: cannot create name for linker map file: %E\n")); |
| } |
| else if (new_name != NULL) |
| { |
| /* This is a trivial memory leak. */ |
| config.map_filename = new_name; |
| } |
| } |
| |
| 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) |
| { |
| einfo (_("%P: missing --end-group; added as last command line option\n")); |
| lang_leave_group (); |
| ingroup--; |
| } |
| |
| if (default_dirlist != NULL) |
| { |
| set_default_dirlist (default_dirlist); |
| free (default_dirlist); |
| } |
| |
| if (link_info.unresolved_syms_in_objects == RM_NOT_YET_SET) |
| /* FIXME: Should we allow emulations a chance to set this ? */ |
| link_info.unresolved_syms_in_objects = RM_DIAGNOSE; |
| |
| if (link_info.unresolved_syms_in_shared_libs == RM_NOT_YET_SET) |
| /* FIXME: Should we allow emulations a chance to set this ? */ |
| link_info.unresolved_syms_in_shared_libs = RM_DIAGNOSE; |
| |
| if (bfd_link_relocatable (&link_info) |
| && command_line.check_section_addresses < 0) |
| command_line.check_section_addresses = 0; |
| |
| if (export_list) |
| { |
| struct bfd_elf_version_expr *head = export_list->head.list; |
| struct bfd_elf_version_expr *next; |
| |
| /* For --export-dynamic-symbol[-list]: |
| 1. When building executable, treat like --dynamic-list. |
| 2. When building shared object: |
| a. If -Bsymbolic or --dynamic-list are used, treat like |
| --dynamic-list. |
| b. Otherwise, ignored. |
| */ |
| if (!bfd_link_relocatable (&link_info) |
| && (bfd_link_executable (&link_info) |
| || opt_symbolic != symbolic_unset |
| || opt_dynamic_list != dynamic_list_unset)) |
| { |
| /* Append the export list to link_info.dynamic_list. */ |
| if (link_info.dynamic_list) |
| { |
| for (next = head; next->next != NULL; next = next->next) |
| ; |
| next->next = link_info.dynamic_list->head.list; |
| link_info.dynamic_list->head.list = head; |
| } |
| else |
| link_info.dynamic_list = export_list; |
| |
| if (opt_dynamic_list != dynamic_list_data) |
| opt_dynamic_list = dynamic_list; |
| } |
| else |
| { |
| /* Free the export list. */ |
| for (; head->next != NULL; head = next) |
| { |
| next = head->next; |
| free (head); |
| } |
| free (export_list); |
| } |
| } |
| |
| switch (opt_dynamic_list) |
| { |
| case dynamic_list_unset: |
| break; |
| case dynamic_list_data: |
| link_info.dynamic_data = true; |
| /* Fall through. */ |
| case dynamic_list: |
| link_info.dynamic = true; |
| opt_symbolic = symbolic_unset; |
| break; |
| } |
| |
| /* -Bsymbolic and -Bsymbols-functions are for shared library output. */ |
| if (bfd_link_dll (&link_info)) |
| switch (opt_symbolic) |
| { |
| case symbolic_unset: |
| break; |
| case symbolic: |
| link_info.symbolic = true; |
| if (link_info.dynamic_list) |
| { |
| struct bfd_elf_version_expr *ent, *next; |
| for (ent = link_info.dynamic_list->head.list; ent; ent = next) |
| { |
| next = ent->next; |
| free (ent); |
| } |
| free (link_info.dynamic_list); |
| link_info.dynamic_list = NULL; |
| } |
| break; |
| case symbolic_functions: |
| link_info.dynamic = true; |
| link_info.dynamic_data = true; |
| break; |
| } |
| |
| /* -z nosectionheader implies --strip-all. */ |
| if (config.no_section_header) |
| { |
| if (bfd_link_relocatable (&link_info)) |
| einfo (_("%F%P: -r and -z nosectionheader may not be used together\n")); |
| |
| link_info.strip = strip_all; |
| } |
| |
| if (!bfd_link_dll (&link_info)) |
| { |
| if (command_line.filter_shlib) |
| einfo (_("%F%P: -F may not be used without -shared\n")); |
| if (command_line.auxiliary_filters) |
| einfo (_("%F%P: -f may not be used without -shared\n")); |
| } |
| |
| /* Treat ld -r -s as ld -r -S -x (i.e., strip all local symbols). I |
| 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 |
| library search path. */ |
| |
| static void |
| set_default_dirlist (char *dirlist_ptr) |
| { |
| char *p; |
| |
| while (1) |
| { |
| p = strchr (dirlist_ptr, PATH_SEPARATOR); |
| if (p != NULL) |
| *p = '\0'; |
| if (*dirlist_ptr != '\0') |
| /* FIXME: Check the return value ? */ |
| (void) ldfile_add_library_path (dirlist_ptr, search_dir_cmd_line); |
| if (p == NULL) |
| break; |
| dirlist_ptr = p + 1; |
| } |
| } |
| |
| static void |
| set_section_start (char *sect, char *valstr) |
| { |
| const char *end; |
| bfd_vma val = bfd_scan_vma (valstr, &end, 16); |
| if (*end) |
| einfo (_("%F%P: invalid hex number `%s'\n"), valstr); |
| 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 (_("%F%P: 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; |
| lang_section_start (section, exp_intop (val), seg); |
| return; |
| } |
| /* There was no existing value so we must create a new segment |
| entry. */ |
| seg = 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); |
| } |
| |
| 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, _("\ |
| --no-eh-frame-hdr Do not 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/both. Default: ")); |
| if (DEFAULT_EMIT_SYSV_HASH) |
| { |
| /* Note - these strings are not translated as |
| they are keywords not descriptive text. */ |
| if (DEFAULT_EMIT_GNU_HASH) |
| fprintf (file, "both\n"); |
| else |
| fprintf (file, "sysv\n"); |
| } |
| else |
| { |
| if (DEFAULT_EMIT_GNU_HASH) |
| fprintf (file, "gnu\n"); |
| else |
| /* FIXME: Can this happen ? */ |
| fprintf (file, "none\n"); |
| } |
| fprintf (file, _("\ |
| -P AUDITLIB, --depaudit=AUDITLIB\n" "\ |
| Specify a library to use for auditing dependencies\n")); |
| 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 unique Mark DSO to be loaded at most once by default, and only in the main namespace\n")); |
| fprintf (file, _("\ |
| -z nounique Don't mark DSO as a loadable at most once\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")); |
| #if DEFAULT_LD_Z_RELRO |
| fprintf (file, _("\ |
| -z relro Create RELRO program header (default)\n")); |
| fprintf (file, _("\ |
| -z norelro Don't create RELRO program header\n")); |
| #else |
| fprintf (file, _("\ |
| -z relro Create RELRO program header\n")); |
| fprintf (file, _("\ |
| -z norelro Don't create RELRO program header (default)\n")); |
| #endif |
| #if DEFAULT_LD_Z_SEPARATE_CODE |
| fprintf (file, _("\ |
| -z separate-code Create separate code program header (default)\n")); |
| fprintf (file, _("\ |
| -z noseparate-code Don't create separate code program header\n")); |
| #else |
| fprintf (file, _("\ |
| -z separate-code Create separate code program header\n")); |
| fprintf (file, _("\ |
| -z noseparate-code Don't create separate code program header (default)\n")); |
| #endif |
| #if DEFAULT_LD_ROSEGMENT |
| fprintf (file, _("\ |
| --rosegment With -z separate-code, create a single read-only segment (default)\n")); |
| fprintf (file, _("\ |
| --no-rosegment With -z separate-code, creste two read-only segments\n")); |
| #else |
| fprintf (file, _("\ |
| --rosegment With -z separate-code, create a single read-only segment\n")); |
| fprintf (file, _("\ |
| --no-rosegment With -z separate-code, creste two read-only segments (default)\n")); |
| #endif |
| fprintf (file, _("\ |
| -z common Generate common symbols with STT_COMMON type\n")); |
| fprintf (file, _("\ |
| -z nocommon Generate common symbols with STT_OBJECT type\n")); |
| if (link_info.textrel_check == textrel_check_error) |
| fprintf (file, _("\ |
| -z text Treat DT_TEXTREL in output as error (default)\n")); |
| else |
| fprintf (file, _("\ |
| -z text Treat DT_TEXTREL in output as error\n")); |
| if (link_info.textrel_check == textrel_check_none) |
| { |
| fprintf (file, _("\ |
| -z notext Don't treat DT_TEXTREL in output as error (default)\n")); |
| fprintf (file, _("\ |
| -z textoff Don't treat DT_TEXTREL in output as error (default)\n")); |
| } |
| else |
| { |
| fprintf (file, _("\ |
| -z notext Don't treat DT_TEXTREL in output as error\n")); |
| fprintf (file, _("\ |
| -z textoff Don't treat DT_TEXTREL in output as error\n")); |
| } |
| } |
| |
| static void |
| elf_static_list_options (FILE *file) |
| { |
| fprintf (file, _("\ |
| --build-id[=STYLE] Generate build ID note\n")); |
| fprintf (file, _("\ |
| --package-metadata[=JSON] Generate package metadata note\n")); |
| fprintf (file, _("\ |
| --compress-debug-sections=[none|zlib|zlib-gnu|zlib-gabi|zstd]\n\ |
| Compress DWARF debug sections\n")); |
| fprintf (file, _("\ |
| Default: %s\n"), |
| bfd_get_compression_algorithm_name (config.compress_debug)); |
| 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 undefs Ignore unresolved symbols in object files\n")); |
| fprintf (file, _("\ |
| -z muldefs Allow multiple definitions\n")); |
| fprintf (file, _("\ |
| -z stack-size=SIZE Set size of stack segment\n")); |
| |
| fprintf (file, _("\ |
| -z execstack Mark executable as requiring executable stack\n")); |
| fprintf (file, _("\ |
| -z noexecstack Mark executable as not requiring executable stack\n")); |
| fprintf (file, _("\ |
| --warn-execstack-objects Generate a warning if an object file requests an executable stack\n")); |
| #if DEFAULT_LD_WARN_EXECSTACK == 0 |
| fprintf (file, _("\ |
| --warn-execstack Generate a warning if creating an executable stack\n")); |
| #else |
| fprintf (file, _("\ |
| --warn-execstack Generate a warning if creating an executable stack (default)\n")); |
| #endif |
| #if DEFAULT_LD_WARN_EXECSTACK == 0 |
| fprintf (file, _("\ |
| --no-warn-execstack Do not generate a warning if creating an executable stack (default)\n")); |
| #else |
| fprintf (file, _("\ |
| --no-warn-execstack Do not generate a warning if creating an executable stack\n")); |
| #endif |
| fprintf (file, _("\ |
| --error-execstack Turn warnings about executable stacks into errors\n")); |
| fprintf (file, _("\ |
| --no-error-execstack Do not turn warnings about executable stacks into errors\n")); |
| |
| #if DEFAULT_LD_WARN_RWX_SEGMENTS |
| fprintf (file, _("\ |
| --warn-rwx-segments Generate a warning if a LOAD segment has RWX permissions (default)\n")); |
| fprintf (file, _("\ |
| --no-warn-rwx-segments Do not generate a warning if a LOAD segments has RWX permissions\n")); |
| #else |
| fprintf (file, _("\ |
| --warn-rwx-segments Generate a warning if a LOAD segment has RWX permissions\n")); |
| fprintf (file, _("\ |
| --no-warn-rwx-segments Do not generate a warning if a LOAD segments has RWX permissions (default)\n")); |
| #endif |
| fprintf (file, _("\ |
| --error-rwx-segments Turn warnings about loadable RWX segments into errors\n")); |
| fprintf (file, _("\ |
| --no-error-rwx-segments Do not turn warnings about loadable RWX segments into errors\n")); |
| |
| fprintf (file, _("\ |
| -z unique-symbol Avoid duplicated local symbol names\n")); |
| fprintf (file, _("\ |
| -z nounique-symbol Keep duplicated local symbol names (default)\n")); |
| fprintf (file, _("\ |
| -z globalaudit Mark executable requiring global auditing\n")); |
| fprintf (file, _("\ |
| -z start-stop-gc Enable garbage collection on __start/__stop\n")); |
| fprintf (file, _("\ |
| -z nostart-stop-gc Don't garbage collect __start/__stop (default)\n")); |
| fprintf (file, _("\ |
| -z start-stop-visibility=V Set visibility of built-in __start/__stop symbols\n\ |
| to DEFAULT, PROTECTED, HIDDEN or INTERNAL\n")); |
| fprintf (file, _("\ |
| -z sectionheader Generate section header (default)\n")); |
| fprintf (file, _("\ |
| -z nosectionheader Do not generate section header\n")); |
| } |
| |
| static void |
| elf_plt_unwind_list_options (FILE *file) |
| { |
| fprintf (file, _("\ |
| --ld-generated-unwind-info Generate exception handling info for PLT\n")); |
| fprintf (file, _("\ |
| --no-ld-generated-unwind-info\n\ |
| Don't generate exception handling info for PLT\n")); |
| } |
| |
| static void |
| ld_list_options (FILE *file, bool elf, bool shlib, bool 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. */ |
| |
| static void |
| help (void) |
| { |
| unsigned i; |
| const char **targets, **pp; |
| int len; |
| |
| printf (_("Usage: %s [options] file...\n"), program_name); |
| |
| printf (_("Options:\n")); |
| for (i = 0; i < OPTION_COUNT; i++) |
| { |
| if (ld_options[i].doc != NULL) |
| { |
| bool comma; |
| unsigned j; |
| |
| printf (" "); |
| |
| comma = false; |
| len = 2; |
| |
| j = i; |
| do |
| { |
| if (ld_options[j].shortopt != '\0' |
| && ld_options[j].control != NO_HELP) |
| { |
| printf ("%s-%c", comma ? ", " : "", ld_options[j].shortopt); |
| len += (comma ? 2 : 0) + 2; |
| if (ld_options[j].arg != NULL) |
| { |
| if (ld_options[j].opt.has_arg != optional_argument) |
| { |
| printf (" "); |
| ++len; |
| } |
| printf ("%s", _(ld_options[j].arg)); |
| len += strlen (_(ld_options[j].arg)); |
| } |
| comma = true; |
| } |
| ++j; |
| } |
| while (j < OPTION_COUNT && ld_options[j].doc == NULL); |
| |
| j = i; |
| do |
| { |
| if (ld_options[j].opt.name != NULL |
| && ld_options[j].control != NO_HELP) |
| { |
| int two_dashes = |
| (ld_options[j].control == TWO_DASHES |
| || ld_options[j].control == EXACTLY_TWO_DASHES); |
| |
| printf ("%s-%s%s", |
| comma ? ", " : "", |
| two_dashes ? "-" : "", |
| ld_options[j].opt.name); |
| len += ((comma ? 2 : 0) |
| + 1 |
| + (two_dashes ? 1 : 0) |
| + strlen (ld_options[j].opt.name)); |
| if (ld_options[j].arg != NULL) |
| { |
| printf (" %s", _(ld_options[j].arg)); |
| len += 1 + strlen (_(ld_options[j].arg)); |
| } |
| comma = true; |
| } |
| ++j; |
| } |
| while (j < OPTION_COUNT && ld_options[j].doc == NULL); |
| |
| if (len >= 30) |
| { |
| printf ("\n"); |
| len = 0; |
| } |
| |
| for (; len < 30; len++) |
| putchar (' '); |
| |
| 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. */ |
| /* xgettext:c-format */ |
| printf (_("%s: supported targets:"), program_name); |
| targets = bfd_target_list (); |
| for (pp = targets; *pp != NULL; pp++) |
| printf (" %s", *pp); |
| free (targets); |
| printf ("\n"); |
| |
| /* xgettext:c-format */ |
| printf (_("%s: supported emulations: "), program_name); |
| ldemul_list_emulations (stdout); |
| printf ("\n"); |
| |
| /* 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"); |
| |
| if (REPORT_BUGS_TO[0]) |
| printf (_("Report bugs to %s\n"), REPORT_BUGS_TO); |
| } |