mirror of
https://sourceware.org/git/binutils-gdb.git
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2299dfd4ba
The is patch adds a new ld build-id computation mode, "xx", using
xxhash in its 128-bit mode. The patch prereqs the xxhash-devel
headers being installed, and uses the "all-inlined" model, so no
run-time or link-time library dependence exists.
The xxhash mode performs well, saving roughly 20% of total userspace
run time from an ld job over a 800MB shared library relative to sha1.
128 bits of good hash should be collision-resistant to a number of
distinct binaries that numbers in the 2**32 - 2**64 range, even if not
"crypto" level hash. Confirmations of this are in progress.
ld/configury: add --with-xxhash mode, different from gdb case
because only using it in inline mode
ld/ldbuildid.c: add "xx" mode, #if WITH_XXHASH
ld/NEWS, ld.texi: mention new option
ld/lexsup.c: add enumeration of --build-id STYLES to --help
ld/testsuite/ld-elf/build-id.exp: add test case for 0xHEX case
and conditional for xx case;
also, simply tcl list syntax
https://inbox.sourceware.org/binutils/20240917201509.GB26396@redhat.com/
Signed-off-by: Frank Ch. Eigler <fche@redhat.com>
2514 lines
86 KiB
C
2514 lines
86 KiB
C
/* Parse options for the GNU linker.
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Copyright (C) 1991-2024 Free Software Foundation, Inc.
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This file is part of the GNU Binutils.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
|
||
(at your option) any later version.
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||
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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.
|
||
|
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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,
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MA 02110-1301, USA. */
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#include "sysdep.h"
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#include "bfd.h"
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#include "bfdver.h"
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#include "libiberty.h"
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#include "filenames.h"
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include "safe-ctype.h"
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#include "getopt.h"
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#include "bfdlink.h"
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#include "ctf-api.h"
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#include "ld.h"
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#include "ldmain.h"
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#include "ldmisc.h"
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#include "ldexp.h"
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#include "ldlang.h"
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#include <ldgram.h>
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#include "ldlex.h"
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#include "ldfile.h"
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#include "ldver.h"
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#include "ldemul.h"
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#include "demangle.h"
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#if BFD_SUPPORTS_PLUGINS
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#include "plugin.h"
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#endif /* BFD_SUPPORTS_PLUGINS */
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#ifndef PATH_SEPARATOR
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#if defined (__MSDOS__) || (defined (_WIN32) && ! defined (__CYGWIN32__))
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#define PATH_SEPARATOR ';'
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#else
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#define PATH_SEPARATOR ':'
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#endif
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#endif
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/* Somewhere above, sys/stat.h got included . . . . */
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#if !defined(S_ISDIR) && defined(S_IFDIR)
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#define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
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#endif
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static void set_default_dirlist (char *);
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static void set_section_start (char *, char *);
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static void set_segment_start (const char *, char *);
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static void help (void);
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/* The long options. This structure is used for both the option
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parsing and the help text. */
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enum control_enum {
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/* Use one dash before long option name. */
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ONE_DASH = 1,
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/* Use two dashes before long option name. */
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TWO_DASHES = 2,
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/* Only accept two dashes before the long option name.
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This is an overloading of the use of this enum, since originally it
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was only intended to tell the --help display function how to display
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the long option name. This feature was added in order to resolve
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the confusion about the -omagic command line switch. Is it setting
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the output file name to "magic" or is it setting the NMAGIC flag on
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the output ? It has been decided that it is setting the output file
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name, and that if you want to set the NMAGIC flag you should use -N
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or --omagic. */
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EXACTLY_TWO_DASHES,
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/* Don't mention this option in --help output. */
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NO_HELP
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};
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struct ld_option
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{
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/* The long option information. */
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struct option opt;
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/* The short option with the same meaning ('\0' if none). */
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char shortopt;
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/* The name of the argument (NULL if none). */
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const char *arg;
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/* The documentation string. If this is NULL, this is a synonym for
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the previous option. */
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const char *doc;
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enum control_enum control;
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};
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static const struct ld_option ld_options[] =
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{
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{ {NULL, required_argument, NULL, '\0'},
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'a', N_("KEYWORD"), N_("Shared library control for HP/UX compatibility"),
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ONE_DASH },
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{ {"architecture", required_argument, NULL, 'A'},
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'A', N_("ARCH"), N_("Set architecture") , EXACTLY_TWO_DASHES },
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{ {"format", required_argument, NULL, 'b'},
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'b', N_("TARGET"), N_("Specify target for following input files"),
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EXACTLY_TWO_DASHES },
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{ {"mri-script", required_argument, NULL, 'c'},
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'c', N_("FILE"), N_("Read MRI format linker script"), EXACTLY_TWO_DASHES },
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{ {"dc", no_argument, NULL, 'd'},
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'd', NULL, N_("Force common symbols to be defined"), ONE_DASH },
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{ {"dp", no_argument, NULL, 'd'},
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'\0', NULL, NULL, ONE_DASH },
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{ {"dependency-file", required_argument, NULL, OPTION_DEPENDENCY_FILE},
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'\0', N_("FILE"), N_("Write dependency file"), TWO_DASHES },
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{ {"force-group-allocation", no_argument, NULL,
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OPTION_FORCE_GROUP_ALLOCATION},
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'\0', NULL, N_("Force group members out of groups"), TWO_DASHES },
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{ {"entry", required_argument, NULL, 'e'},
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'e', N_("ADDRESS"), N_("Set start address"), TWO_DASHES },
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{ {"export-dynamic", no_argument, NULL, OPTION_EXPORT_DYNAMIC},
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'E', NULL, N_("Export all dynamic symbols"), TWO_DASHES },
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{ {"no-export-dynamic", no_argument, NULL, OPTION_NO_EXPORT_DYNAMIC},
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'\0', NULL, N_("Undo the effect of --export-dynamic"), TWO_DASHES },
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{ {"enable-non-contiguous-regions", no_argument, NULL, OPTION_NON_CONTIGUOUS_REGIONS},
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'\0', NULL, N_("Enable support of non-contiguous memory regions"), TWO_DASHES },
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{ {"enable-non-contiguous-regions-warnings", no_argument, NULL, OPTION_NON_CONTIGUOUS_REGIONS_WARNINGS},
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'\0', NULL, N_("Enable warnings when --enable-non-contiguous-regions may cause unexpected behaviour"), TWO_DASHES },
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{ {"disable-linker-version", no_argument, NULL, OPTION_DISABLE_LINKER_VERSION},
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'\0', NULL, N_("Disable the LINKER_VERSION linker script directive"), TWO_DASHES },
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{ {"enable-linker-version", no_argument, NULL, OPTION_ENABLE_LINKER_VERSION},
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'\0', NULL, N_("Enable the LINKER_VERSION linker script directive"), TWO_DASHES },
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{ {"EB", no_argument, NULL, OPTION_EB},
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'\0', NULL, N_("Link big-endian objects"), ONE_DASH },
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{ {"EL", no_argument, NULL, OPTION_EL},
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'\0', NULL, N_("Link little-endian objects"), ONE_DASH },
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{ {"auxiliary", required_argument, NULL, 'f'},
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'f', N_("SHLIB"), N_("Auxiliary filter for shared object symbol table"),
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TWO_DASHES },
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{ {"filter", required_argument, NULL, 'F'},
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'F', N_("SHLIB"), N_("Filter for shared object symbol table"),
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TWO_DASHES },
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{ {NULL, no_argument, NULL, '\0'},
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'g', NULL, N_("Ignored"), ONE_DASH },
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{ {"gpsize", required_argument, NULL, 'G'},
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'G', N_("SIZE"), N_("Small data size (if no size, same as --shared)"),
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TWO_DASHES },
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{ {"soname", required_argument, NULL, OPTION_SONAME},
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'h', N_("FILENAME"), N_("Set internal name of shared library"), ONE_DASH },
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{ {"dynamic-linker", required_argument, NULL, OPTION_DYNAMIC_LINKER},
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'I', N_("PROGRAM"), N_("Set PROGRAM as the dynamic linker to use"),
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TWO_DASHES },
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{ {"no-dynamic-linker", no_argument, NULL, OPTION_NO_DYNAMIC_LINKER},
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'\0', NULL, N_("Produce an executable with no program interpreter header"),
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TWO_DASHES },
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{ {"library", required_argument, NULL, 'l'},
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'l', N_("LIBNAME"), N_("Search for library LIBNAME"), TWO_DASHES },
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{ {"library-path", required_argument, NULL, 'L'},
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'L', N_("DIRECTORY"), N_("Add DIRECTORY to library search path"),
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TWO_DASHES },
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{ {"sysroot=<DIRECTORY>", required_argument, NULL, OPTION_SYSROOT},
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'\0', NULL, N_("Override the default sysroot location"), TWO_DASHES },
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{ {NULL, required_argument, NULL, '\0'},
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'm', N_("EMULATION"), N_("Set emulation"), ONE_DASH },
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{ {"print-map", no_argument, NULL, 'M'},
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'M', NULL, N_("Print map file on standard output"), TWO_DASHES },
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{ {"nmagic", no_argument, NULL, 'n'},
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'n', NULL, N_("Do not page align data"), TWO_DASHES },
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{ {"omagic", no_argument, NULL, 'N'},
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'N', NULL, N_("Do not page align data, do not make text readonly"),
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EXACTLY_TWO_DASHES },
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{ {"no-omagic", no_argument, NULL, OPTION_NO_OMAGIC},
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'\0', NULL, N_("Page align data, make text readonly"),
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EXACTLY_TWO_DASHES },
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{ {"output", required_argument, NULL, 'o'},
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'o', N_("FILE"), N_("Set output file name"), EXACTLY_TWO_DASHES },
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{ {NULL, required_argument, NULL, '\0'},
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'O', NULL, N_("Optimize output file"), ONE_DASH },
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{ {"out-implib", required_argument, NULL, OPTION_OUT_IMPLIB},
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'\0', N_("FILE"), N_("Generate import library"), TWO_DASHES },
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#if BFD_SUPPORTS_PLUGINS
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{ {"plugin", required_argument, NULL, OPTION_PLUGIN},
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'\0', N_("PLUGIN"), N_("Load named plugin"), ONE_DASH },
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{ {"plugin-opt", required_argument, NULL, OPTION_PLUGIN_OPT},
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'\0', N_("ARG"), N_("Send arg to last-loaded plugin"), ONE_DASH },
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{ {"plugin-save-temps", no_argument, NULL, OPTION_PLUGIN_SAVE_TEMPS},
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'\0', NULL, N_("Store plugin intermediate files permanently"),
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ONE_DASH },
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{ {"flto", optional_argument, NULL, OPTION_IGNORE},
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'\0', NULL, N_("Ignored for GCC LTO option compatibility"),
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ONE_DASH },
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{ {"flto-partition=", required_argument, NULL, OPTION_IGNORE},
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'\0', NULL, N_("Ignored for GCC LTO option compatibility"),
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ONE_DASH },
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#else
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{ {"plugin", required_argument, NULL, OPTION_IGNORE},
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'\0', N_("PLUGIN"), N_("Load named plugin (ignored)"), ONE_DASH },
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{ {"plugin-opt", required_argument, NULL, OPTION_IGNORE},
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'\0', N_("ARG"), N_("Send arg to last-loaded plugin (ignored)"), ONE_DASH },
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#endif /* BFD_SUPPORTS_PLUGINS */
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{ {"fuse-ld=", required_argument, NULL, OPTION_IGNORE},
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'\0', NULL, N_("Ignored for GCC linker option compatibility"),
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ONE_DASH },
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{ {"map-whole-files", optional_argument, NULL, OPTION_IGNORE},
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'\0', NULL, N_("Ignored for gold option compatibility"),
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TWO_DASHES },
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{ {"no-map-whole-files", optional_argument, NULL, OPTION_IGNORE},
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'\0', NULL, N_("Ignored for gold option compatibility"),
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TWO_DASHES },
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{ {"Qy", no_argument, NULL, OPTION_IGNORE},
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'\0', NULL, N_("Ignored for SVR4 compatibility"), ONE_DASH },
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{ {"emit-relocs", no_argument, NULL, 'q'},
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'q', NULL, "Generate relocations in final output", TWO_DASHES },
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{ {"relocatable", no_argument, NULL, 'r'},
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'r', NULL, N_("Generate relocatable output"), TWO_DASHES },
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{ {NULL, no_argument, NULL, '\0'},
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'i', NULL, NULL, ONE_DASH },
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{ {"just-symbols", required_argument, NULL, 'R'},
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'R', N_("FILE"), N_("Just link symbols (if directory, same as --rpath)"),
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TWO_DASHES },
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{ {"remap-inputs-file", required_argument, NULL, OPTION_REMAP_INPUTS_FILE},
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'\0', N_("FILE"), "Provide a FILE containing input remapings", TWO_DASHES },
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{ {"remap-inputs", required_argument, NULL, OPTION_REMAP_INPUTS},
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'\0', N_("PATTERN=FILE"), "Remap input files matching PATTERN to FILE", TWO_DASHES },
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{ {"strip-all", no_argument, NULL, 's'},
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's', NULL, N_("Strip all symbols"), TWO_DASHES },
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{ {"strip-debug", no_argument, NULL, 'S'},
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'S', NULL, N_("Strip debugging symbols"), TWO_DASHES },
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{ {"strip-discarded", no_argument, NULL, OPTION_STRIP_DISCARDED},
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'\0', NULL, N_("Strip symbols in discarded sections"), TWO_DASHES },
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{ {"no-strip-discarded", no_argument, NULL, OPTION_NO_STRIP_DISCARDED},
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'\0', NULL, N_("Do not strip symbols in discarded sections"), TWO_DASHES },
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{ {"trace", no_argument, NULL, 't'},
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't', NULL, N_("Trace file opens"), TWO_DASHES },
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{ {"script", required_argument, NULL, 'T'},
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'T', N_("FILE"), N_("Read linker script"), TWO_DASHES },
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{ {"default-script", required_argument, NULL, OPTION_DEFAULT_SCRIPT},
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'\0', N_("FILE"), N_("Read default linker script"), TWO_DASHES },
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{ {"dT", required_argument, NULL, OPTION_DEFAULT_SCRIPT},
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'\0', NULL, NULL, ONE_DASH },
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{ {"undefined", required_argument, NULL, 'u'},
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'u', N_("SYMBOL"), N_("Start with undefined reference to SYMBOL"),
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TWO_DASHES },
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{ {"require-defined", required_argument, NULL, OPTION_REQUIRE_DEFINED_SYMBOL},
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'\0', N_("SYMBOL"), N_("Require SYMBOL be defined in the final output"),
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TWO_DASHES },
|
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{ {"unique", optional_argument, NULL, OPTION_UNIQUE},
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'\0', N_("[=SECTION]"),
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N_("Don't merge input [SECTION | orphan] sections"), TWO_DASHES },
|
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{ {"Ur", no_argument, NULL, OPTION_UR},
|
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'\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'},
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'V', NULL, N_("Print version and emulation information"), ONE_DASH },
|
||
{ {"discard-all", no_argument, NULL, 'x'},
|
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'x', NULL, N_("Discard all local symbols"), TWO_DASHES },
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{ {"discard-locals", no_argument, NULL, 'X'},
|
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'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,
|
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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"));
|
||
/* DEFAULT_BUILD_ID_STYLE n/a here */
|
||
#ifdef WITH_XXHASH
|
||
fprintf (file, _("\
|
||
Styles: none,md5,sha1,xx,uuid,0xHEX\n"));
|
||
/* NB: testsuite/ld-elf/build-id.exp depends on this syntax */
|
||
#else
|
||
fprintf (file, _("\
|
||
Styles: none,md5,sha1,uuid,0xHEX\n"));
|
||
#endif
|
||
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);
|
||
}
|