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- /* Parse options for the GNU linker.
- Copyright (C) 1991-2022 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") , TWO_DASHES },
- { {"format", required_argument, NULL, 'b'},
- 'b', N_("TARGET"), N_("Specify target for following input files"),
- TWO_DASHES },
- { {"mri-script", required_argument, NULL, 'c'},
- 'c', N_("FILE"), N_("Read MRI format linker script"), 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 },
- { {"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 },
- { {"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 },
- { {"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 },
- { {"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
- { {"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 },
- { {"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 },
- { {"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 },
- { {"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 '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':
- ldfile_add_library_path (optarg, true);
- 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_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;
- #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_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_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_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_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;
- }
- 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')
- ldfile_add_library_path (dirlist_ptr, true);
- 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
- 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, _("\
- --compress-debug-sections=[none|zlib|zlib-gnu|zlib-gabi]\n\
- Compress DWARF debug sections using zlib\n"));
- #ifdef DEFAULT_FLAG_COMPRESS_DEBUG
- fprintf (file, _("\
- Default: zlib-gabi\n"));
- #else
- fprintf (file, _("\
- Default: none\n"));
- #endif
- fprintf (file, _("\
- -z common-page-size=SIZE Set common page size to SIZE\n"));
- fprintf (file, _("\
- -z max-page-size=SIZE Set maximum page size to SIZE\n"));
- fprintf (file, _("\
- -z defs Report unresolved symbols in object files\n"));
- fprintf (file, _("\
- -z 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, _("\
- -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"));
- }
- 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);
- }
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