0,0 → 1,1718 |
/* Parse options for the GNU linker. |
Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2011, 2012 |
Free Software Foundation, Inc. |
|
This file is part of the GNU Binutils. |
|
This program is free software; you can redistribute it and/or modify |
it under the terms of the GNU General Public License as published by |
the Free Software Foundation; either version 3 of the License, or |
(at your option) any later version. |
|
This program is distributed in the hope that it will be useful, |
but WITHOUT ANY WARRANTY; without even the implied warranty of |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
GNU General Public License for more details. |
|
You should have received a copy of the GNU General Public License |
along with this program; if not, write to the Free Software |
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
MA 02110-1301, USA. */ |
|
#include "sysdep.h" |
#include "bfd.h" |
#include "bfdver.h" |
#include "libiberty.h" |
#include <stdio.h> |
#include <string.h> |
#include "safe-ctype.h" |
#include "getopt.h" |
#include "bfdlink.h" |
#include "ld.h" |
#include "ldmain.h" |
#include "ldmisc.h" |
#include "ldexp.h" |
#include "ldlang.h" |
#include <ldgram.h> |
#include "ldlex.h" |
#include "ldfile.h" |
#include "ldver.h" |
#include "ldemul.h" |
#include "demangle.h" |
#ifdef ENABLE_PLUGINS |
#include "plugin.h" |
#endif /* ENABLE_PLUGINS */ |
|
#ifndef PATH_SEPARATOR |
#if defined (__MSDOS__) || (defined (_WIN32) && ! defined (__CYGWIN32__)) |
#define PATH_SEPARATOR ';' |
#else |
#define PATH_SEPARATOR ':' |
#endif |
#endif |
|
/* Somewhere above, sys/stat.h got included . . . . */ |
#if !defined(S_ISDIR) && defined(S_IFDIR) |
#define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR) |
#endif |
|
static void set_default_dirlist (char *); |
static void set_section_start (char *, char *); |
static void set_segment_start (const char *, char *); |
static void help (void); |
|
/* The long options. This structure is used for both the option |
parsing and the help text. */ |
|
enum control_enum { |
/* Use one dash before long option name. */ |
ONE_DASH, |
/* Use two dashes before long option name. */ |
TWO_DASHES, |
/* Only accept two dashes before the long option name. |
This is an overloading of the use of this enum, since originally it |
was only intended to tell the --help display function how to display |
the long option name. This feature was added in order to resolve |
the confusion about the -omagic command line switch. Is it setting |
the output file name to "magic" or is it setting the NMAGIC flag on |
the output ? It has been decided that it is setting the output file |
name, and that if you want to set the NMAGIC flag you should use -N |
or --omagic. */ |
EXACTLY_TWO_DASHES, |
/* Don't mention this option in --help output. */ |
NO_HELP |
}; |
|
struct ld_option |
{ |
/* The long option information. */ |
struct option opt; |
/* The short option with the same meaning ('\0' if none). */ |
char shortopt; |
/* The name of the argument (NULL if none). */ |
const char *arg; |
/* The documentation string. If this is NULL, this is a synonym for |
the previous option. */ |
const char *doc; |
enum control_enum control; |
}; |
|
static const struct ld_option ld_options[] = |
{ |
{ {NULL, required_argument, NULL, '\0'}, |
'a', N_("KEYWORD"), N_("Shared library control for HP/UX compatibility"), |
ONE_DASH }, |
{ {"architecture", required_argument, NULL, 'A'}, |
'A', N_("ARCH"), N_("Set architecture") , TWO_DASHES }, |
{ {"format", required_argument, NULL, 'b'}, |
'b', N_("TARGET"), N_("Specify target for following input files"), |
TWO_DASHES }, |
{ {"mri-script", required_argument, NULL, 'c'}, |
'c', N_("FILE"), N_("Read MRI format linker script"), TWO_DASHES }, |
{ {"dc", no_argument, NULL, 'd'}, |
'd', NULL, N_("Force common symbols to be defined"), ONE_DASH }, |
{ {"dp", no_argument, NULL, 'd'}, |
'\0', NULL, NULL, ONE_DASH }, |
{ {"entry", required_argument, NULL, 'e'}, |
'e', N_("ADDRESS"), N_("Set start address"), TWO_DASHES }, |
{ {"export-dynamic", no_argument, NULL, OPTION_EXPORT_DYNAMIC}, |
'E', NULL, N_("Export all dynamic symbols"), TWO_DASHES }, |
{ {"no-export-dynamic", no_argument, NULL, OPTION_NO_EXPORT_DYNAMIC}, |
'\0', NULL, N_("Undo the effect of --export-dynamic"), TWO_DASHES }, |
{ {"EB", no_argument, NULL, OPTION_EB}, |
'\0', NULL, N_("Link big-endian objects"), ONE_DASH }, |
{ {"EL", no_argument, NULL, OPTION_EL}, |
'\0', NULL, N_("Link little-endian objects"), ONE_DASH }, |
{ {"auxiliary", required_argument, NULL, 'f'}, |
'f', N_("SHLIB"), N_("Auxiliary filter for shared object symbol table"), |
TWO_DASHES }, |
{ {"filter", required_argument, NULL, 'F'}, |
'F', N_("SHLIB"), N_("Filter for shared object symbol table"), |
TWO_DASHES }, |
{ {NULL, no_argument, NULL, '\0'}, |
'g', NULL, N_("Ignored"), ONE_DASH }, |
{ {"gpsize", required_argument, NULL, 'G'}, |
'G', N_("SIZE"), N_("Small data size (if no size, same as --shared)"), |
TWO_DASHES }, |
{ {"soname", required_argument, NULL, OPTION_SONAME}, |
'h', N_("FILENAME"), N_("Set internal name of shared library"), ONE_DASH }, |
{ {"dynamic-linker", required_argument, NULL, OPTION_DYNAMIC_LINKER}, |
'I', N_("PROGRAM"), N_("Set PROGRAM as the dynamic linker to use"), |
TWO_DASHES }, |
{ {"library", required_argument, NULL, 'l'}, |
'l', N_("LIBNAME"), N_("Search for library LIBNAME"), TWO_DASHES }, |
{ {"library-path", required_argument, NULL, 'L'}, |
'L', N_("DIRECTORY"), N_("Add DIRECTORY to library search path"), |
TWO_DASHES }, |
{ {"sysroot=<DIRECTORY>", required_argument, NULL, OPTION_SYSROOT}, |
'\0', NULL, N_("Override the default sysroot location"), TWO_DASHES }, |
{ {NULL, required_argument, NULL, '\0'}, |
'm', N_("EMULATION"), N_("Set emulation"), ONE_DASH }, |
{ {"print-map", no_argument, NULL, 'M'}, |
'M', NULL, N_("Print map file on standard output"), TWO_DASHES }, |
{ {"nmagic", no_argument, NULL, 'n'}, |
'n', NULL, N_("Do not page align data"), TWO_DASHES }, |
{ {"omagic", no_argument, NULL, 'N'}, |
'N', NULL, N_("Do not page align data, do not make text readonly"), |
EXACTLY_TWO_DASHES }, |
{ {"no-omagic", no_argument, NULL, OPTION_NO_OMAGIC}, |
'\0', NULL, N_("Page align data, make text readonly"), |
EXACTLY_TWO_DASHES }, |
{ {"output", required_argument, NULL, 'o'}, |
'o', N_("FILE"), N_("Set output file name"), EXACTLY_TWO_DASHES }, |
{ {NULL, required_argument, NULL, '\0'}, |
'O', NULL, N_("Optimize output file"), ONE_DASH }, |
#ifdef ENABLE_PLUGINS |
{ {"plugin", required_argument, NULL, OPTION_PLUGIN}, |
'\0', N_("PLUGIN"), N_("Load named plugin"), ONE_DASH }, |
{ {"plugin-opt", required_argument, NULL, OPTION_PLUGIN_OPT}, |
'\0', N_("ARG"), N_("Send arg to last-loaded plugin"), ONE_DASH }, |
{ {"flto", optional_argument, NULL, OPTION_IGNORE}, |
'\0', NULL, N_("Ignored for GCC LTO option compatibility"), |
ONE_DASH }, |
{ {"flto-partition=", required_argument, NULL, OPTION_IGNORE}, |
'\0', NULL, N_("Ignored for GCC LTO option compatibility"), |
ONE_DASH }, |
#endif /* ENABLE_PLUGINS */ |
{ {"fuse-ld=", required_argument, NULL, OPTION_IGNORE}, |
'\0', NULL, N_("Ignored for GCC linker option compatibility"), |
ONE_DASH }, |
{ {"Qy", no_argument, NULL, OPTION_IGNORE}, |
'\0', NULL, N_("Ignored for SVR4 compatibility"), ONE_DASH }, |
{ {"emit-relocs", no_argument, NULL, 'q'}, |
'q', NULL, "Generate relocations in final output", TWO_DASHES }, |
{ {"relocatable", no_argument, NULL, 'r'}, |
'r', NULL, N_("Generate relocatable output"), TWO_DASHES }, |
{ {NULL, no_argument, NULL, '\0'}, |
'i', NULL, NULL, ONE_DASH }, |
{ {"just-symbols", required_argument, NULL, 'R'}, |
'R', N_("FILE"), N_("Just link symbols (if directory, same as --rpath)"), |
TWO_DASHES }, |
{ {"strip-all", no_argument, NULL, 's'}, |
's', NULL, N_("Strip all symbols"), TWO_DASHES }, |
{ {"strip-debug", no_argument, NULL, 'S'}, |
'S', NULL, N_("Strip debugging symbols"), TWO_DASHES }, |
{ {"strip-discarded", no_argument, NULL, OPTION_STRIP_DISCARDED}, |
'\0', NULL, N_("Strip symbols in discarded sections"), TWO_DASHES }, |
{ {"no-strip-discarded", no_argument, NULL, OPTION_NO_STRIP_DISCARDED}, |
'\0', NULL, N_("Do not strip symbols in discarded sections"), TWO_DASHES }, |
{ {"trace", no_argument, NULL, 't'}, |
't', NULL, N_("Trace file opens"), TWO_DASHES }, |
{ {"script", required_argument, NULL, 'T'}, |
'T', N_("FILE"), N_("Read linker script"), TWO_DASHES }, |
{ {"default-script", required_argument, NULL, OPTION_DEFAULT_SCRIPT}, |
'\0', N_("FILE"), N_("Read default linker script"), TWO_DASHES }, |
{ {"dT", required_argument, NULL, OPTION_DEFAULT_SCRIPT}, |
'\0', NULL, NULL, ONE_DASH }, |
{ {"undefined", required_argument, NULL, 'u'}, |
'u', N_("SYMBOL"), N_("Start with undefined reference to SYMBOL"), |
TWO_DASHES }, |
{ {"unique", optional_argument, NULL, OPTION_UNIQUE}, |
'\0', N_("[=SECTION]"), |
N_("Don't merge input [SECTION | orphan] sections"), TWO_DASHES }, |
{ {"Ur", no_argument, NULL, OPTION_UR}, |
'\0', NULL, N_("Build global constructor/destructor tables"), ONE_DASH }, |
{ {"version", no_argument, NULL, OPTION_VERSION}, |
'v', NULL, N_("Print version information"), TWO_DASHES }, |
{ {NULL, no_argument, NULL, '\0'}, |
'V', NULL, N_("Print version and emulation information"), ONE_DASH }, |
{ {"discard-all", no_argument, NULL, 'x'}, |
'x', NULL, N_("Discard all local symbols"), TWO_DASHES }, |
{ {"discard-locals", no_argument, NULL, 'X'}, |
'X', NULL, N_("Discard temporary local symbols (default)"), TWO_DASHES }, |
{ {"discard-none", no_argument, NULL, OPTION_DISCARD_NONE}, |
'\0', NULL, N_("Don't discard any local symbols"), TWO_DASHES }, |
{ {"trace-symbol", required_argument, NULL, 'y'}, |
'y', N_("SYMBOL"), N_("Trace mentions of SYMBOL"), TWO_DASHES }, |
{ {NULL, required_argument, NULL, '\0'}, |
'Y', N_("PATH"), N_("Default search path for Solaris compatibility"), |
ONE_DASH }, |
{ {"start-group", no_argument, NULL, '('}, |
'(', NULL, N_("Start a group"), TWO_DASHES }, |
{ {"end-group", no_argument, NULL, ')'}, |
')', NULL, N_("End a group"), TWO_DASHES }, |
{ {"accept-unknown-input-arch", no_argument, NULL, |
OPTION_ACCEPT_UNKNOWN_INPUT_ARCH}, |
'\0', NULL, |
N_("Accept input files whose architecture cannot be determined"), |
TWO_DASHES }, |
{ {"no-accept-unknown-input-arch", no_argument, NULL, |
OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH}, |
'\0', NULL, N_("Reject input files whose architecture is unknown"), |
TWO_DASHES }, |
|
/* The next two options are deprecated because of their similarity to |
--as-needed and --no-as-needed. They have been replaced by |
--copy-dt-needed-entries and --no-copy-dt-needed-entries. */ |
{ {"add-needed", no_argument, NULL, OPTION_ADD_DT_NEEDED_FOR_DYNAMIC}, |
'\0', NULL, NULL, NO_HELP }, |
{ {"no-add-needed", no_argument, NULL, OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC}, |
'\0', NULL, NULL, NO_HELP }, |
|
{ {"as-needed", no_argument, NULL, OPTION_ADD_DT_NEEDED_FOR_REGULAR}, |
'\0', NULL, N_("Only set DT_NEEDED for following dynamic libs if used"), |
TWO_DASHES }, |
{ {"no-as-needed", no_argument, NULL, OPTION_NO_ADD_DT_NEEDED_FOR_REGULAR}, |
'\0', NULL, N_("Always set DT_NEEDED for dynamic libraries mentioned on\n" |
" the command line"), |
TWO_DASHES }, |
{ {"assert", required_argument, NULL, OPTION_ASSERT}, |
'\0', N_("KEYWORD"), N_("Ignored for SunOS compatibility"), ONE_DASH }, |
{ {"Bdynamic", no_argument, NULL, OPTION_CALL_SHARED}, |
'\0', NULL, N_("Link against shared libraries"), ONE_DASH }, |
{ {"dy", no_argument, NULL, OPTION_CALL_SHARED}, |
'\0', NULL, NULL, ONE_DASH }, |
{ {"call_shared", no_argument, NULL, OPTION_CALL_SHARED}, |
'\0', NULL, NULL, ONE_DASH }, |
{ {"Bstatic", no_argument, NULL, OPTION_NON_SHARED}, |
'\0', NULL, N_("Do not link against shared libraries"), ONE_DASH }, |
{ {"dn", no_argument, NULL, OPTION_NON_SHARED}, |
'\0', NULL, NULL, ONE_DASH }, |
{ {"non_shared", no_argument, NULL, OPTION_NON_SHARED}, |
'\0', NULL, NULL, ONE_DASH }, |
{ {"static", no_argument, NULL, OPTION_NON_SHARED}, |
'\0', NULL, NULL, ONE_DASH }, |
{ {"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 }, |
{ {"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 }, |
{ {"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"), N_("Write a map file"), ONE_DASH }, |
{ {"no-define-common", no_argument, NULL, OPTION_NO_DEFINE_COMMON}, |
'\0', NULL, N_("Do not define Common storage"), TWO_DASHES }, |
{ {"no-demangle", no_argument, NULL, OPTION_NO_DEMANGLE }, |
'\0', NULL, N_("Do not demangle symbol names"), TWO_DASHES }, |
{ {"no-keep-memory", no_argument, NULL, OPTION_NO_KEEP_MEMORY}, |
'\0', NULL, N_("Use less memory and more disk I/O"), TWO_DASHES }, |
{ {"no-undefined", no_argument, NULL, OPTION_NO_UNDEFINED}, |
'\0', NULL, N_("Do not allow unresolved references in object files"), |
TWO_DASHES }, |
{ {"allow-shlib-undefined", no_argument, NULL, OPTION_ALLOW_SHLIB_UNDEFINED}, |
'\0', NULL, N_("Allow unresolved references in shared libraries"), |
TWO_DASHES }, |
{ {"no-allow-shlib-undefined", no_argument, NULL, |
OPTION_NO_ALLOW_SHLIB_UNDEFINED}, |
'\0', NULL, N_("Do not allow unresolved references in shared libs"), |
TWO_DASHES }, |
{ {"allow-multiple-definition", no_argument, NULL, |
OPTION_ALLOW_MULTIPLE_DEFINITION}, |
'\0', NULL, N_("Allow multiple definitions"), TWO_DASHES }, |
{ {"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 }, |
{ {"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 }, |
{ {"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 }, |
{ {"sort-common", optional_argument, NULL, OPTION_SORT_COMMON}, |
'\0', N_("[=ascending|descending]"), |
N_("Sort common symbols by alignment [in specified order]"), |
TWO_DASHES }, |
{ {"sort_common", no_argument, NULL, OPTION_SORT_COMMON}, |
'\0', NULL, NULL, NO_HELP }, |
{ {"sort-section", required_argument, NULL, OPTION_SORT_SECTION}, |
'\0', N_("name|alignment"), |
N_("Sort sections by name or maximum alignment"), TWO_DASHES }, |
{ {"spare-dynamic-tags", required_argument, NULL, OPTION_SPARE_DYNAMIC_TAGS}, |
'\0', N_("COUNT"), N_("How many tags to reserve in .dynamic section"), |
TWO_DASHES }, |
{ {"split-by-file", optional_argument, NULL, OPTION_SPLIT_BY_FILE}, |
'\0', N_("[=SIZE]"), N_("Split output sections every SIZE octets"), |
TWO_DASHES }, |
{ {"split-by-reloc", optional_argument, NULL, OPTION_SPLIT_BY_RELOC}, |
'\0', N_("[=COUNT]"), N_("Split output sections every COUNT relocs"), |
TWO_DASHES }, |
{ {"stats", no_argument, NULL, OPTION_STATS}, |
'\0', NULL, N_("Print memory usage statistics"), TWO_DASHES }, |
{ {"target-help", no_argument, NULL, OPTION_TARGET_HELP}, |
'\0', NULL, N_("Display target specific options"), TWO_DASHES }, |
{ {"task-link", required_argument, NULL, OPTION_TASK_LINK}, |
'\0', N_("SYMBOL"), N_("Do task level linking"), TWO_DASHES }, |
{ {"traditional-format", no_argument, NULL, OPTION_TRADITIONAL_FORMAT}, |
'\0', NULL, N_("Use same format as native linker"), TWO_DASHES }, |
{ {"section-start", required_argument, NULL, OPTION_SECTION_START}, |
'\0', N_("SECTION=ADDRESS"), N_("Set address of named section"), |
TWO_DASHES }, |
{ {"Tbss", required_argument, NULL, OPTION_TBSS}, |
'\0', N_("ADDRESS"), N_("Set address of .bss section"), ONE_DASH }, |
{ {"Tdata", required_argument, NULL, OPTION_TDATA}, |
'\0', N_("ADDRESS"), N_("Set address of .data section"), ONE_DASH }, |
{ {"Ttext", required_argument, NULL, OPTION_TTEXT}, |
'\0', N_("ADDRESS"), N_("Set address of .text section"), ONE_DASH }, |
{ {"Ttext-segment", required_argument, NULL, OPTION_TTEXT_SEGMENT}, |
'\0', N_("ADDRESS"), N_("Set address of text segment"), ONE_DASH }, |
{ {"Trodata-segment", required_argument, NULL, OPTION_TRODATA_SEGMENT}, |
'\0', N_("ADDRESS"), N_("Set address of rodata segment"), ONE_DASH }, |
{ {"Tldata-segment", required_argument, NULL, OPTION_TLDATA_SEGMENT}, |
'\0', N_("ADDRESS"), N_("Set address of ldata segment"), ONE_DASH }, |
{ {"unresolved-symbols=<method>", required_argument, NULL, |
OPTION_UNRESOLVED_SYMBOLS}, |
'\0', NULL, N_("How to handle unresolved symbols. <method> is:\n" |
" ignore-all, report-all, ignore-in-object-files,\n" |
" ignore-in-shared-libs"), |
TWO_DASHES }, |
{ {"verbose", optional_argument, NULL, OPTION_VERBOSE}, |
'\0', N_("[=NUMBER]"), |
N_("Output lots of information during link"), TWO_DASHES }, |
{ {"dll-verbose", no_argument, NULL, OPTION_VERBOSE}, /* Linux. */ |
'\0', NULL, NULL, NO_HELP }, |
{ {"version-script", required_argument, NULL, OPTION_VERSION_SCRIPT }, |
'\0', N_("FILE"), N_("Read version information script"), TWO_DASHES }, |
{ {"version-exports-section", required_argument, NULL, |
OPTION_VERSION_EXPORTS_SECTION }, |
'\0', N_("SYMBOL"), N_("Take export symbols list from .exports, using\n" |
" SYMBOL as the version."), |
TWO_DASHES }, |
{ {"dynamic-list-data", no_argument, NULL, OPTION_DYNAMIC_LIST_DATA}, |
'\0', NULL, N_("Add data symbols to dynamic list"), TWO_DASHES }, |
{ {"dynamic-list-cpp-new", no_argument, NULL, OPTION_DYNAMIC_LIST_CPP_NEW}, |
'\0', NULL, N_("Use C++ operator new/delete dynamic list"), TWO_DASHES }, |
{ {"dynamic-list-cpp-typeinfo", no_argument, NULL, OPTION_DYNAMIC_LIST_CPP_TYPEINFO}, |
'\0', NULL, N_("Use C++ typeinfo dynamic list"), TWO_DASHES }, |
{ {"dynamic-list", required_argument, NULL, OPTION_DYNAMIC_LIST}, |
'\0', N_("FILE"), N_("Read dynamic list"), TWO_DASHES }, |
{ {"warn-common", no_argument, NULL, OPTION_WARN_COMMON}, |
'\0', NULL, N_("Warn about duplicate common symbols"), TWO_DASHES }, |
{ {"warn-constructors", no_argument, NULL, OPTION_WARN_CONSTRUCTORS}, |
'\0', NULL, N_("Warn if global constructors/destructors are seen"), |
TWO_DASHES }, |
{ {"warn-multiple-gp", no_argument, NULL, OPTION_WARN_MULTIPLE_GP}, |
'\0', NULL, N_("Warn if the multiple GP values are used"), TWO_DASHES }, |
{ {"warn-once", no_argument, NULL, OPTION_WARN_ONCE}, |
'\0', NULL, N_("Warn only once per undefined symbol"), TWO_DASHES }, |
{ {"warn-section-align", no_argument, NULL, OPTION_WARN_SECTION_ALIGN}, |
'\0', NULL, N_("Warn if start of section changes due to alignment"), |
TWO_DASHES }, |
{ {"warn-shared-textrel", no_argument, NULL, OPTION_WARN_SHARED_TEXTREL}, |
'\0', NULL, N_("Warn if shared object has DT_TEXTREL"), |
TWO_DASHES }, |
{ {"warn-alternate-em", no_argument, NULL, OPTION_WARN_ALTERNATE_EM}, |
'\0', NULL, N_("Warn if an object has alternate ELF machine code"), |
TWO_DASHES }, |
{ {"warn-unresolved-symbols", no_argument, NULL, |
OPTION_WARN_UNRESOLVED_SYMBOLS}, |
'\0', NULL, N_("Report unresolved symbols as warnings"), TWO_DASHES }, |
{ {"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 }, |
}; |
|
#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 report_method how_to_report_unresolved_symbols = RM_GENERATE_ERROR; |
|
shortopts = (char *) xmalloc (OPTION_COUNT * 3 + 2); |
longopts = (struct option *) |
xmalloc (sizeof (*longopts) * (OPTION_COUNT + 1)); |
really_longopts = (struct option *) |
malloc (sizeof (*really_longopts) * (OPTION_COUNT + 1)); |
|
/* Starting the short option string with '-' is for programs that |
expect options and other ARGV-elements in any order and that care about |
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; |
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); |
} |
|
if (ldemul_handle_option (optc)) |
continue; |
|
if (optc == -1) |
break; |
|
switch (optc) |
{ |
case '?': |
einfo (_("%P: unrecognized option '%s'\n"), argv[last_optind]); |
/* Fall through. */ |
|
default: |
einfo (_("%P%F: use the --help option for usage information\n")); |
|
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 (_("%P%F: 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 (_("%P%F: 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_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; |
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 '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 (_("%P%F: 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_HELP: |
help (); |
xexit (0); |
break; |
case 'L': |
ldfile_add_library_path (optarg, TRUE); |
break; |
case 'l': |
lang_add_input_file (optarg, lang_input_file_is_l_enum, NULL); |
break; |
case 'M': |
config.map_filename = "-"; |
break; |
case 'm': |
/* Ignore. Was handled in a pre-parse. */ |
break; |
case OPTION_MAP: |
config.map_filename = optarg; |
break; |
case 'N': |
config.text_read_only = FALSE; |
config.magic_demand_paged = FALSE; |
input_flags.dynamic = FALSE; |
break; |
case OPTION_NO_OMAGIC: |
config.text_read_only = TRUE; |
config.magic_demand_paged = TRUE; |
/* NB/ Does not set input_flags.dynamic to TRUE. |
Use --call-shared or -Bdynamic for this. */ |
break; |
case 'n': |
config.magic_demand_paged = FALSE; |
input_flags.dynamic = FALSE; |
break; |
case OPTION_NO_DEFINE_COMMON: |
command_line.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 |
= how_to_report_unresolved_symbols; |
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 |
= how_to_report_unresolved_symbols; |
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 |
= how_to_report_unresolved_symbols; |
link_info.unresolved_syms_in_shared_libs |
= how_to_report_unresolved_symbols; |
} |
else if (strcmp (optarg, "ignore-in-object-files") == 0) |
{ |
link_info.unresolved_syms_in_objects = RM_IGNORE; |
link_info.unresolved_syms_in_shared_libs |
= how_to_report_unresolved_symbols; |
} |
else if (strcmp (optarg, "ignore-in-shared-libs") == 0) |
{ |
link_info.unresolved_syms_in_objects |
= how_to_report_unresolved_symbols; |
link_info.unresolved_syms_in_shared_libs = RM_IGNORE; |
} |
else |
einfo (_("%P%F: bad --unresolved-symbols option: %s\n"), optarg); |
break; |
case OPTION_WARN_UNRESOLVED_SYMBOLS: |
how_to_report_unresolved_symbols = RM_GENERATE_WARNING; |
if (link_info.unresolved_syms_in_objects == RM_GENERATE_ERROR) |
link_info.unresolved_syms_in_objects = RM_GENERATE_WARNING; |
if (link_info.unresolved_syms_in_shared_libs == RM_GENERATE_ERROR) |
link_info.unresolved_syms_in_shared_libs = RM_GENERATE_WARNING; |
break; |
|
case OPTION_ERROR_UNRESOLVED_SYMBOLS: |
how_to_report_unresolved_symbols = RM_GENERATE_ERROR; |
if (link_info.unresolved_syms_in_objects == RM_GENERATE_WARNING) |
link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR; |
if (link_info.unresolved_syms_in_shared_libs == RM_GENERATE_WARNING) |
link_info.unresolved_syms_in_shared_libs = RM_GENERATE_ERROR; |
break; |
case OPTION_ALLOW_MULTIPLE_DEFINITION: |
link_info.allow_multiple_definition = 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) ? TRUE : FALSE; |
break; |
case 'o': |
lang_add_output (optarg, 0); |
break; |
case OPTION_OFORMAT: |
lang_add_output_format (optarg, NULL, NULL, 0); |
break; |
case OPTION_PRINT_OUTPUT_FORMAT: |
command_line.print_output_format = TRUE; |
break; |
#ifdef ENABLE_PLUGINS |
case OPTION_PLUGIN: |
plugin_opt_plugin (optarg); |
break; |
case OPTION_PLUGIN_OPT: |
if (plugin_opt_plugin_arg (optarg)) |
einfo(_("%P%F: bad -plugin-opt option\n")); |
break; |
#endif /* ENABLE_PLUGINS */ |
case 'q': |
link_info.emitrelocations = TRUE; |
break; |
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(_("%P%F: bad -rpath option\n")); |
|
link_info.relocatable = TRUE; |
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_SHARED: |
if (config.has_shared) |
{ |
link_info.shared = TRUE; |
/* 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 (_("%P%F: -shared not supported\n")); |
break; |
case OPTION_PIE: |
if (config.has_shared) |
{ |
link_info.shared = TRUE; |
link_info.pie = TRUE; |
} |
else |
einfo (_("%P%F: -pie not supported\n")); |
break; |
case 'h': /* Used on Solaris. */ |
case OPTION_SONAME: |
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 (_("%P%F: 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 (_("%P%F: invalid section sorting option: %s\n"), |
optarg); |
break; |
case OPTION_STATS: |
config.stats = TRUE; |
break; |
case OPTION_SYMBOLIC: |
command_line.symbolic = symbolic; |
break; |
case OPTION_SYMBOLIC_FUNCTIONS: |
command_line.symbolic = symbolic_functions; |
break; |
case 't': |
trace_files = TRUE; |
break; |
case 'T': |
previous_script_handle = saved_script_handle; |
ldfile_open_command_file (optarg); |
parser_input = input_script; |
yyparse (); |
previous_script_handle = NULL; |
break; |
case OPTION_DEFAULT_SCRIPT: |
command_line.default_script = optarg; |
break; |
case OPTION_SECTION_START: |
{ |
char *optarg2; |
char *sec_name; |
int len; |
|
/* Check for <something>=<somthing>... */ |
optarg2 = strchr (optarg, '='); |
if (optarg2 == NULL) |
einfo (_("%P%F: invalid argument to option" |
" \"--section-start\"\n")); |
|
optarg2++; |
|
/* So far so good. Are all the args present? */ |
if ((*optarg == '\0') || (*optarg2 == '\0')) |
einfo (_("%P%F: 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 - do an implied -r option. */ |
case OPTION_UR: |
link_info.relocatable = TRUE; |
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_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 (_("%P%F: invalid number `%s'\n"), optarg); |
#ifdef ENABLE_PLUGINS |
report_plugin_symbols = level > 1; |
#endif /* ENABLE_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: |
command_line.dynamic_list = dynamic_list_data; |
if (command_line.symbolic == symbolic) |
command_line.symbolic = symbolic_unset; |
break; |
case OPTION_DYNAMIC_LIST_CPP_TYPEINFO: |
lang_append_dynamic_list_cpp_typeinfo (); |
if (command_line.dynamic_list != dynamic_list_data) |
command_line.dynamic_list = dynamic_list; |
if (command_line.symbolic == symbolic) |
command_line.symbolic = symbolic_unset; |
break; |
case OPTION_DYNAMIC_LIST_CPP_NEW: |
lang_append_dynamic_list_cpp_new (); |
if (command_line.dynamic_list != dynamic_list_data) |
command_line.dynamic_list = dynamic_list; |
if (command_line.symbolic == symbolic) |
command_line.symbolic = symbolic_unset; |
break; |
case OPTION_DYNAMIC_LIST: |
/* This option indicates a small script that only specifies |
a dynamic list. Read it, but don't assume that we've |
seen a linker script. */ |
{ |
FILE *hold_script_handle; |
|
hold_script_handle = saved_script_handle; |
ldfile_open_command_file (optarg); |
saved_script_handle = hold_script_handle; |
parser_input = input_dynamic_list; |
yyparse (); |
} |
if (command_line.dynamic_list != dynamic_list_data) |
command_line.dynamic_list = dynamic_list; |
if (command_line.symbolic == symbolic) |
command_line.symbolic = symbolic_unset; |
break; |
case OPTION_WARN_COMMON: |
config.warn_common = TRUE; |
break; |
case OPTION_WARN_CONSTRUCTORS: |
config.warn_constructors = TRUE; |
break; |
case OPTION_WARN_FATAL: |
config.fatal_warnings = TRUE; |
break; |
case OPTION_NO_WARN_FATAL: |
config.fatal_warnings = FALSE; |
break; |
case OPTION_WARN_MULTIPLE_GP: |
config.warn_multiple_gp = TRUE; |
break; |
case OPTION_WARN_ONCE: |
config.warn_once = TRUE; |
break; |
case OPTION_WARN_SECTION_ALIGN: |
config.warn_section_align = TRUE; |
break; |
case OPTION_WARN_SHARED_TEXTREL: |
link_info.warn_shared_textrel = TRUE; |
break; |
case OPTION_WARN_ALTERNATE_EM: |
link_info.warn_alternate_em = TRUE; |
break; |
case OPTION_WHOLE_ARCHIVE: |
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 (CONST_STRNEQ (optarg, "P,")) |
optarg += 2; |
if (default_dirlist != NULL) |
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 (_("%P%F: group ended before it began (--help for usage)\n")); |
|
lang_leave_group (); |
ingroup--; |
break; |
|
case OPTION_INIT: |
link_info.init_function = optarg; |
break; |
|
case OPTION_FINI: |
link_info.fini_function = optarg; |
break; |
|
case OPTION_REDUCE_MEMORY_OVERHEADS: |
link_info.reduce_memory_overheads = TRUE; |
if (config.hash_table_size == 0) |
config.hash_table_size = 1021; |
break; |
|
case OPTION_HASH_SIZE: |
{ |
bfd_size_type new_size; |
|
new_size = strtoul (optarg, NULL, 0); |
if (new_size) |
config.hash_table_size = new_size; |
else |
einfo (_("%P%X: --hash-size needs a numeric argument\n")); |
} |
break; |
} |
} |
|
while (ingroup) |
{ |
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 = how_to_report_unresolved_symbols; |
|
if (link_info.unresolved_syms_in_shared_libs == RM_NOT_YET_SET) |
/* FIXME: Should we allow emulations a chance to set this ? */ |
link_info.unresolved_syms_in_shared_libs = how_to_report_unresolved_symbols; |
|
if (link_info.relocatable) |
{ |
if (command_line.check_section_addresses < 0) |
command_line.check_section_addresses = 0; |
if (link_info.shared) |
einfo (_("%P%F: -r and -shared may not be used together\n")); |
} |
|
/* We may have -Bsymbolic, -Bsymbolic-functions, --dynamic-list-data, |
--dynamic-list-cpp-new, --dynamic-list-cpp-typeinfo and |
--dynamic-list FILE. -Bsymbolic and -Bsymbolic-functions are |
for shared libraries. -Bsymbolic overrides all others and vice |
versa. */ |
switch (command_line.symbolic) |
{ |
case symbolic_unset: |
break; |
case symbolic: |
/* -Bsymbolic is for shared library only. */ |
if (link_info.shared) |
{ |
link_info.symbolic = TRUE; |
/* Should we free the unused memory? */ |
link_info.dynamic_list = NULL; |
command_line.dynamic_list = dynamic_list_unset; |
} |
break; |
case symbolic_functions: |
/* -Bsymbolic-functions is for shared library only. */ |
if (link_info.shared) |
command_line.dynamic_list = dynamic_list_data; |
break; |
} |
|
switch (command_line.dynamic_list) |
{ |
case dynamic_list_unset: |
break; |
case dynamic_list_data: |
link_info.dynamic_data = TRUE; |
case dynamic_list: |
link_info.dynamic = TRUE; |
break; |
} |
|
if (! link_info.shared) |
{ |
if (command_line.filter_shlib) |
einfo (_("%P%F: -F may not be used without -shared\n")); |
if (command_line.auxiliary_filters) |
einfo (_("%P%F: -f may not be used without -shared\n")); |
} |
|
if (! link_info.shared || link_info.pie) |
link_info.executable = TRUE; |
|
/* Treat ld -r -s as ld -r -S -x (i.e., strip all local symbols). I |
don't see how else this can be handled, since in this case we |
must preserve all externally visible symbols. */ |
if (link_info.relocatable && link_info.strip == strip_all) |
{ |
link_info.strip = strip_debugger; |
if (link_info.discard == discard_sec_merge) |
link_info.discard = discard_all; |
} |
} |
|
/* Add the (colon-separated) elements of DIRLIST_PTR to the |
library search path. */ |
|
static void |
set_default_dirlist (char *dirlist_ptr) |
{ |
char *p; |
|
while (1) |
{ |
p = strchr (dirlist_ptr, PATH_SEPARATOR); |
if (p != NULL) |
*p = '\0'; |
if (*dirlist_ptr != '\0') |
ldfile_add_library_path (dirlist_ptr, TRUE); |
if (p == NULL) |
break; |
dirlist_ptr = p + 1; |
} |
} |
|
static void |
set_section_start (char *sect, char *valstr) |
{ |
const char *end; |
bfd_vma val = bfd_scan_vma (valstr, &end, 16); |
if (*end) |
einfo (_("%P%F: 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 (_("%P%F: invalid hex number `%s'\n"), valstr); |
/* If we already have an entry for this segment, update the existing |
value. */ |
name = section + 1; |
for (seg = segments; seg; seg = seg->next) |
if (strcmp (seg->name, name) == 0) |
{ |
seg->value = val; |
return; |
} |
/* There was no existing value so we must create a new segment |
entry. */ |
seg = (segment_type *) stat_alloc (sizeof (*seg)); |
seg->name = name; |
seg->value = val; |
seg->used = FALSE; |
/* Add it to the linked list of segments. */ |
seg->next = segments; |
segments = seg; |
/* Historically, -Ttext and friends set the base address of a |
particular section. For backwards compatibility, we still do |
that. If a SEGMENT_START directive is seen, the section address |
assignment will be disabled. */ |
lang_section_start (section, exp_intop (val), seg); |
} |
|
|
/* Print help messages for the options. */ |
|
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) |
{ |
bfd_boolean 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); |
ldemul_list_emulation_options (stdout); |
printf ("\n"); |
|
if (REPORT_BUGS_TO[0]) |
printf (_("Report bugs to %s\n"), REPORT_BUGS_TO); |
} |