1 // plugin.cc -- plugin manager for gold -*- C++ -*-
3 // Copyright 2008, 2009, 2010, 2011, 2012, 2013 Free Software Foundation, Inc.
4 // Written by Cary Coutant <ccoutant@google.com>.
6 // This file is part of gold.
8 // This program is free software; you can redistribute it and/or modify
9 // it under the terms of the GNU General Public License as published by
10 // the Free Software Foundation; either version 3 of the License, or
11 // (at your option) any later version.
13 // This program is distributed in the hope that it will be useful,
14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 // GNU General Public License for more details.
18 // You should have received a copy of the GNU General Public License
19 // along with this program; if not, write to the Free Software
20 // Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
21 // MA 02110-1301, USA.
34 #elif defined (HAVE_WINDOWS_H)
37 #error Unknown how to handle dynamic-load-libraries.
40 #if !defined (HAVE_DLFCN_H) && defined (HAVE_WINDOWS_H)
42 #define RTLD_NOW 0 /* Dummy value. */
44 dlopen(const char *file
, int mode ATTRIBUTE_UNUSED
)
46 return LoadLibrary(file
);
50 dlsym(void *handle
, const char *name
)
52 return reinterpret_cast<void *>(
53 GetProcAddress(static_cast<HMODULE
>(handle
),name
));
59 return "unable to load dll";
62 #endif /* !defined (HAVE_DLFCN_H) && defined (HAVE_WINDOWS_H) */
63 #endif /* ENABLE_PLUGINS */
65 #include "parameters.h"
81 // The linker's exported interfaces.
86 static enum ld_plugin_status
87 register_claim_file(ld_plugin_claim_file_handler handler
);
89 static enum ld_plugin_status
90 register_all_symbols_read(ld_plugin_all_symbols_read_handler handler
);
92 static enum ld_plugin_status
93 register_cleanup(ld_plugin_cleanup_handler handler
);
95 static enum ld_plugin_status
96 add_symbols(void *handle
, int nsyms
, const struct ld_plugin_symbol
*syms
);
98 static enum ld_plugin_status
99 get_input_file(const void *handle
, struct ld_plugin_input_file
*file
);
101 static enum ld_plugin_status
102 get_view(const void *handle
, const void **viewp
);
104 static enum ld_plugin_status
105 release_input_file(const void *handle
);
107 static enum ld_plugin_status
108 get_symbols(const void *handle
, int nsyms
, struct ld_plugin_symbol
*syms
);
110 static enum ld_plugin_status
111 get_symbols_v2(const void *handle
, int nsyms
, struct ld_plugin_symbol
*syms
);
113 static enum ld_plugin_status
114 add_input_file(const char *pathname
);
116 static enum ld_plugin_status
117 add_input_library(const char *pathname
);
119 static enum ld_plugin_status
120 set_extra_library_path(const char *path
);
122 static enum ld_plugin_status
123 message(int level
, const char *format
, ...);
125 static enum ld_plugin_status
126 get_input_section_count(const void* handle
, unsigned int* count
);
128 static enum ld_plugin_status
129 get_input_section_type(const struct ld_plugin_section section
,
132 static enum ld_plugin_status
133 get_input_section_name(const struct ld_plugin_section section
,
134 char** section_name_ptr
);
136 static enum ld_plugin_status
137 get_input_section_contents(const struct ld_plugin_section section
,
138 const unsigned char** section_contents
,
141 static enum ld_plugin_status
142 update_section_order(const struct ld_plugin_section
*section_list
,
143 unsigned int num_sections
);
145 static enum ld_plugin_status
146 allow_section_ordering();
148 static enum ld_plugin_status
149 allow_unique_segment_for_sections();
151 static enum ld_plugin_status
152 unique_segment_for_sections(const char* segment_name
,
155 const struct ld_plugin_section
*section_list
,
156 unsigned int num_sections
);
159 #endif // ENABLE_PLUGINS
161 static Pluginobj
* make_sized_plugin_object(Input_file
* input_file
,
162 off_t offset
, off_t filesize
);
166 // Load one plugin library.
171 #ifdef ENABLE_PLUGINS
172 // Load the plugin library.
173 // FIXME: Look for the library in standard locations.
174 this->handle_
= dlopen(this->filename_
.c_str(), RTLD_NOW
);
175 if (this->handle_
== NULL
)
177 gold_error(_("%s: could not load plugin library: %s"),
178 this->filename_
.c_str(), dlerror());
182 // Find the plugin's onload entry point.
183 void* ptr
= dlsym(this->handle_
, "onload");
186 gold_error(_("%s: could not find onload entry point"),
187 this->filename_
.c_str());
190 ld_plugin_onload onload
;
191 gold_assert(sizeof(onload
) == sizeof(ptr
));
192 memcpy(&onload
, &ptr
, sizeof(ptr
));
194 // Get the linker's version number.
195 const char* ver
= get_version_string();
198 sscanf(ver
, "%d.%d", &major
, &minor
);
200 // Allocate and populate a transfer vector.
201 const int tv_fixed_size
= 26;
203 int tv_size
= this->args_
.size() + tv_fixed_size
;
204 ld_plugin_tv
* tv
= new ld_plugin_tv
[tv_size
];
206 // Put LDPT_MESSAGE at the front of the list so the plugin can use it
207 // while processing subsequent entries.
209 tv
[i
].tv_tag
= LDPT_MESSAGE
;
210 tv
[i
].tv_u
.tv_message
= message
;
213 tv
[i
].tv_tag
= LDPT_API_VERSION
;
214 tv
[i
].tv_u
.tv_val
= LD_PLUGIN_API_VERSION
;
217 tv
[i
].tv_tag
= LDPT_GOLD_VERSION
;
218 tv
[i
].tv_u
.tv_val
= major
* 100 + minor
;
221 tv
[i
].tv_tag
= LDPT_LINKER_OUTPUT
;
222 if (parameters
->options().relocatable())
223 tv
[i
].tv_u
.tv_val
= LDPO_REL
;
224 else if (parameters
->options().shared())
225 tv
[i
].tv_u
.tv_val
= LDPO_DYN
;
226 else if (parameters
->options().pie())
227 tv
[i
].tv_u
.tv_val
= LDPO_PIE
;
229 tv
[i
].tv_u
.tv_val
= LDPO_EXEC
;
232 tv
[i
].tv_tag
= LDPT_OUTPUT_NAME
;
233 tv
[i
].tv_u
.tv_string
= parameters
->options().output();
235 for (unsigned int j
= 0; j
< this->args_
.size(); ++j
)
238 tv
[i
].tv_tag
= LDPT_OPTION
;
239 tv
[i
].tv_u
.tv_string
= this->args_
[j
].c_str();
243 tv
[i
].tv_tag
= LDPT_REGISTER_CLAIM_FILE_HOOK
;
244 tv
[i
].tv_u
.tv_register_claim_file
= register_claim_file
;
247 tv
[i
].tv_tag
= LDPT_REGISTER_ALL_SYMBOLS_READ_HOOK
;
248 tv
[i
].tv_u
.tv_register_all_symbols_read
= register_all_symbols_read
;
251 tv
[i
].tv_tag
= LDPT_REGISTER_CLEANUP_HOOK
;
252 tv
[i
].tv_u
.tv_register_cleanup
= register_cleanup
;
255 tv
[i
].tv_tag
= LDPT_ADD_SYMBOLS
;
256 tv
[i
].tv_u
.tv_add_symbols
= add_symbols
;
259 tv
[i
].tv_tag
= LDPT_GET_INPUT_FILE
;
260 tv
[i
].tv_u
.tv_get_input_file
= get_input_file
;
263 tv
[i
].tv_tag
= LDPT_GET_VIEW
;
264 tv
[i
].tv_u
.tv_get_view
= get_view
;
267 tv
[i
].tv_tag
= LDPT_RELEASE_INPUT_FILE
;
268 tv
[i
].tv_u
.tv_release_input_file
= release_input_file
;
271 tv
[i
].tv_tag
= LDPT_GET_SYMBOLS
;
272 tv
[i
].tv_u
.tv_get_symbols
= get_symbols
;
275 tv
[i
].tv_tag
= LDPT_GET_SYMBOLS_V2
;
276 tv
[i
].tv_u
.tv_get_symbols
= get_symbols_v2
;
279 tv
[i
].tv_tag
= LDPT_ADD_INPUT_FILE
;
280 tv
[i
].tv_u
.tv_add_input_file
= add_input_file
;
283 tv
[i
].tv_tag
= LDPT_ADD_INPUT_LIBRARY
;
284 tv
[i
].tv_u
.tv_add_input_library
= add_input_library
;
287 tv
[i
].tv_tag
= LDPT_SET_EXTRA_LIBRARY_PATH
;
288 tv
[i
].tv_u
.tv_set_extra_library_path
= set_extra_library_path
;
291 tv
[i
].tv_tag
= LDPT_GET_INPUT_SECTION_COUNT
;
292 tv
[i
].tv_u
.tv_get_input_section_count
= get_input_section_count
;
295 tv
[i
].tv_tag
= LDPT_GET_INPUT_SECTION_TYPE
;
296 tv
[i
].tv_u
.tv_get_input_section_type
= get_input_section_type
;
299 tv
[i
].tv_tag
= LDPT_GET_INPUT_SECTION_NAME
;
300 tv
[i
].tv_u
.tv_get_input_section_name
= get_input_section_name
;
303 tv
[i
].tv_tag
= LDPT_GET_INPUT_SECTION_CONTENTS
;
304 tv
[i
].tv_u
.tv_get_input_section_contents
= get_input_section_contents
;
307 tv
[i
].tv_tag
= LDPT_UPDATE_SECTION_ORDER
;
308 tv
[i
].tv_u
.tv_update_section_order
= update_section_order
;
311 tv
[i
].tv_tag
= LDPT_ALLOW_SECTION_ORDERING
;
312 tv
[i
].tv_u
.tv_allow_section_ordering
= allow_section_ordering
;
315 tv
[i
].tv_tag
= LDPT_ALLOW_UNIQUE_SEGMENT_FOR_SECTIONS
;
316 tv
[i
].tv_u
.tv_allow_unique_segment_for_sections
317 = allow_unique_segment_for_sections
;
320 tv
[i
].tv_tag
= LDPT_UNIQUE_SEGMENT_FOR_SECTIONS
;
321 tv
[i
].tv_u
.tv_unique_segment_for_sections
= unique_segment_for_sections
;
324 tv
[i
].tv_tag
= LDPT_NULL
;
325 tv
[i
].tv_u
.tv_val
= 0;
327 gold_assert(i
== tv_size
- 1);
329 // Call the onload entry point.
333 #endif // ENABLE_PLUGINS
336 // Call the plugin claim-file handler.
339 Plugin::claim_file(struct ld_plugin_input_file
* plugin_input_file
)
343 if (this->claim_file_handler_
!= NULL
)
345 (*this->claim_file_handler_
)(plugin_input_file
, &claimed
);
352 // Call the all-symbols-read handler.
355 Plugin::all_symbols_read()
357 if (this->all_symbols_read_handler_
!= NULL
)
358 (*this->all_symbols_read_handler_
)();
361 // Call the cleanup handler.
366 if (this->cleanup_handler_
!= NULL
&& !this->cleanup_done_
)
368 // Set this flag before calling to prevent a recursive plunge
369 // in the event that a plugin's cleanup handler issues a
371 this->cleanup_done_
= true;
372 (*this->cleanup_handler_
)();
376 // This task is used to rescan archives as needed.
378 class Plugin_rescan
: public Task
381 Plugin_rescan(Task_token
* this_blocker
, Task_token
* next_blocker
)
382 : this_blocker_(this_blocker
), next_blocker_(next_blocker
)
387 delete this->this_blocker_
;
393 if (this->this_blocker_
->is_blocked())
394 return this->this_blocker_
;
399 locks(Task_locker
* tl
)
400 { tl
->add(this, this->next_blocker_
); }
404 { parameters
->options().plugins()->rescan(this); }
408 { return "Plugin_rescan"; }
411 Task_token
* this_blocker_
;
412 Task_token
* next_blocker_
;
415 // Plugin_manager methods.
417 Plugin_manager::~Plugin_manager()
419 for (Plugin_list::iterator p
= this->plugins_
.begin();
420 p
!= this->plugins_
.end();
423 this->plugins_
.clear();
424 for (Object_list::iterator obj
= this->objects_
.begin();
425 obj
!= this->objects_
.end();
428 this->objects_
.clear();
431 // Load all plugin libraries.
434 Plugin_manager::load_plugins(Layout
* layout
)
436 this->layout_
= layout
;
437 for (this->current_
= this->plugins_
.begin();
438 this->current_
!= this->plugins_
.end();
440 (*this->current_
)->load();
443 // Call the plugin claim-file handlers in turn to see if any claim the file.
446 Plugin_manager::claim_file(Input_file
* input_file
, off_t offset
,
447 off_t filesize
, Object
* elf_object
)
449 if (this->in_replacement_phase_
)
452 unsigned int handle
= this->objects_
.size();
453 this->input_file_
= input_file
;
454 this->plugin_input_file_
.name
= input_file
->filename().c_str();
455 this->plugin_input_file_
.fd
= input_file
->file().descriptor();
456 this->plugin_input_file_
.offset
= offset
;
457 this->plugin_input_file_
.filesize
= filesize
;
458 this->plugin_input_file_
.handle
= reinterpret_cast<void*>(handle
);
459 if (elf_object
!= NULL
)
460 this->objects_
.push_back(elf_object
);
461 this->in_claim_file_handler_
= true;
463 for (this->current_
= this->plugins_
.begin();
464 this->current_
!= this->plugins_
.end();
467 if ((*this->current_
)->claim_file(&this->plugin_input_file_
))
469 this->any_claimed_
= true;
470 this->in_claim_file_handler_
= false;
472 if (this->objects_
.size() > handle
473 && this->objects_
[handle
]->pluginobj() != NULL
)
474 return this->objects_
[handle
]->pluginobj();
476 // If the plugin claimed the file but did not call the
477 // add_symbols callback, we need to create the Pluginobj now.
478 Pluginobj
* obj
= this->make_plugin_object(handle
);
483 this->in_claim_file_handler_
= false;
487 // Save an archive. This is used so that a plugin can add a file
488 // which refers to a symbol which was not previously referenced. In
489 // that case we want to pretend that the symbol was referenced before,
490 // and pull in the archive object.
493 Plugin_manager::save_archive(Archive
* archive
)
495 if (this->in_replacement_phase_
|| !this->any_claimed_
)
498 this->rescannable_
.push_back(Rescannable(archive
));
501 // Save an Input_group. This is like save_archive.
504 Plugin_manager::save_input_group(Input_group
* input_group
)
506 if (this->in_replacement_phase_
|| !this->any_claimed_
)
509 this->rescannable_
.push_back(Rescannable(input_group
));
512 // Call the all-symbols-read handlers.
515 Plugin_manager::all_symbols_read(Workqueue
* workqueue
, Task
* task
,
516 Input_objects
* input_objects
,
517 Symbol_table
* symtab
,
518 Dirsearch
* dirpath
, Mapfile
* mapfile
,
519 Task_token
** last_blocker
)
521 this->in_replacement_phase_
= true;
522 this->workqueue_
= workqueue
;
524 this->input_objects_
= input_objects
;
525 this->symtab_
= symtab
;
526 this->dirpath_
= dirpath
;
527 this->mapfile_
= mapfile
;
528 this->this_blocker_
= NULL
;
530 for (this->current_
= this->plugins_
.begin();
531 this->current_
!= this->plugins_
.end();
533 (*this->current_
)->all_symbols_read();
535 if (this->any_added_
)
537 Task_token
* next_blocker
= new Task_token(true);
538 next_blocker
->add_blocker();
539 workqueue
->queue(new Plugin_rescan(this->this_blocker_
, next_blocker
));
540 this->this_blocker_
= next_blocker
;
543 *last_blocker
= this->this_blocker_
;
546 // This is called when we see a new undefined symbol. If we are in
547 // the replacement phase, this means that we may need to rescan some
548 // archives we have previously seen.
551 Plugin_manager::new_undefined_symbol(Symbol
* sym
)
553 if (this->in_replacement_phase_
)
554 this->undefined_symbols_
.push_back(sym
);
557 // Rescan archives as needed. This handles the case where a new
558 // object file added by a plugin has an undefined reference to some
559 // symbol defined in an archive.
562 Plugin_manager::rescan(Task
* task
)
564 size_t rescan_pos
= 0;
565 size_t rescan_size
= this->rescannable_
.size();
566 while (!this->undefined_symbols_
.empty())
568 if (rescan_pos
>= rescan_size
)
570 this->undefined_symbols_
.clear();
574 Undefined_symbol_list undefs
;
575 undefs
.reserve(this->undefined_symbols_
.size());
576 this->undefined_symbols_
.swap(undefs
);
578 size_t min_rescan_pos
= rescan_size
;
580 for (Undefined_symbol_list::const_iterator p
= undefs
.begin();
584 if (!(*p
)->is_undefined())
587 this->undefined_symbols_
.push_back(*p
);
589 // Find the first rescan archive which defines this symbol,
590 // starting at the current rescan position. The rescan position
591 // exists so that given -la -lb -lc we don't look for undefined
592 // symbols in -lb back in -la, but instead get the definition
593 // from -lc. Don't bother to look past the current minimum
595 for (size_t i
= rescan_pos
; i
< min_rescan_pos
; ++i
)
597 if (this->rescannable_defines(i
, *p
))
605 if (min_rescan_pos
>= rescan_size
)
607 // We didn't find any rescannable archives which define any
608 // undefined symbols.
612 const Rescannable
& r(this->rescannable_
[min_rescan_pos
]);
615 Task_lock_obj
<Archive
> tl(task
, r
.u
.archive
);
616 r
.u
.archive
->add_symbols(this->symtab_
, this->layout_
,
617 this->input_objects_
, this->mapfile_
);
621 size_t next_saw_undefined
= this->symtab_
->saw_undefined();
622 size_t saw_undefined
;
625 saw_undefined
= next_saw_undefined
;
627 for (Input_group::const_iterator p
= r
.u
.input_group
->begin();
628 p
!= r
.u
.input_group
->end();
631 Task_lock_obj
<Archive
> tl(task
, *p
);
633 (*p
)->add_symbols(this->symtab_
, this->layout_
,
634 this->input_objects_
, this->mapfile_
);
637 next_saw_undefined
= this->symtab_
->saw_undefined();
639 while (saw_undefined
!= next_saw_undefined
);
642 for (size_t i
= rescan_pos
; i
< min_rescan_pos
+ 1; ++i
)
644 if (this->rescannable_
[i
].is_archive
)
645 delete this->rescannable_
[i
].u
.archive
;
647 delete this->rescannable_
[i
].u
.input_group
;
650 rescan_pos
= min_rescan_pos
+ 1;
654 // Return whether the rescannable at index I defines SYM.
657 Plugin_manager::rescannable_defines(size_t i
, Symbol
* sym
)
659 const Rescannable
& r(this->rescannable_
[i
]);
661 return r
.u
.archive
->defines_symbol(sym
);
664 for (Input_group::const_iterator p
= r
.u
.input_group
->begin();
665 p
!= r
.u
.input_group
->end();
668 if ((*p
)->defines_symbol(sym
))
675 // Layout deferred objects.
678 Plugin_manager::layout_deferred_objects()
680 Deferred_layout_list::iterator obj
;
682 for (obj
= this->deferred_layout_objects_
.begin();
683 obj
!= this->deferred_layout_objects_
.end();
686 // Lock the object so we can read from it. This is only called
687 // single-threaded from queue_middle_tasks, so it is OK to lock.
688 // Unfortunately we have no way to pass in a Task token.
689 const Task
* dummy_task
= reinterpret_cast<const Task
*>(-1);
690 Task_lock_obj
<Object
> tl(dummy_task
, *obj
);
691 (*obj
)->layout_deferred_sections(this->layout_
);
695 // Call the cleanup handlers.
698 Plugin_manager::cleanup()
700 for (this->current_
= this->plugins_
.begin();
701 this->current_
!= this->plugins_
.end();
703 (*this->current_
)->cleanup();
706 // Make a new Pluginobj object. This is called when the plugin calls
707 // the add_symbols API.
710 Plugin_manager::make_plugin_object(unsigned int handle
)
712 // Make sure we aren't asked to make an object for the same handle twice.
713 if (this->objects_
.size() != handle
714 && this->objects_
[handle
]->pluginobj() != NULL
)
717 Pluginobj
* obj
= make_sized_plugin_object(this->input_file_
,
718 this->plugin_input_file_
.offset
,
719 this->plugin_input_file_
.filesize
);
722 // If the elf object for this file was pushed into the objects_ vector, delete
723 // it to make room for the Pluginobj as this file is claimed.
724 if (this->objects_
.size() != handle
)
725 this->objects_
.pop_back();
727 this->objects_
.push_back(obj
);
731 // Get the input file information with an open (possibly re-opened)
735 Plugin_manager::get_input_file(unsigned int handle
,
736 struct ld_plugin_input_file
* file
)
738 Pluginobj
* obj
= this->object(handle
)->pluginobj();
740 return LDPS_BAD_HANDLE
;
742 obj
->lock(this->task_
);
743 file
->name
= obj
->filename().c_str();
744 file
->fd
= obj
->descriptor();
745 file
->offset
= obj
->offset();
746 file
->filesize
= obj
->filesize();
747 file
->handle
= reinterpret_cast<void*>(handle
);
751 // Release the input file.
754 Plugin_manager::release_input_file(unsigned int handle
)
756 if (this->object(handle
) == NULL
)
757 return LDPS_BAD_HANDLE
;
759 Pluginobj
* obj
= this->object(handle
)->pluginobj();
762 return LDPS_BAD_HANDLE
;
764 obj
->unlock(this->task_
);
768 // Get the elf object corresponding to the handle. Return NULL if we
769 // found a Pluginobj instead.
772 Plugin_manager::get_elf_object(const void* handle
)
774 Object
* obj
= this->object(
775 static_cast<unsigned int>(reinterpret_cast<intptr_t>(handle
)));
777 // The object should not be a Pluginobj.
779 || obj
->pluginobj() != NULL
)
786 Plugin_manager::get_view(unsigned int handle
, const void **viewp
)
790 Input_file
*input_file
;
791 if (this->in_claim_file_handler_
)
793 // We are being called from the claim_file hook.
794 const struct ld_plugin_input_file
&f
= this->plugin_input_file_
;
796 filesize
= f
.filesize
;
797 input_file
= this->input_file_
;
801 // An already claimed file.
802 if (this->object(handle
) == NULL
)
803 return LDPS_BAD_HANDLE
;
804 Pluginobj
* obj
= this->object(handle
)->pluginobj();
806 return LDPS_BAD_HANDLE
;
807 offset
= obj
->offset();
808 filesize
= obj
->filesize();
809 input_file
= obj
->input_file();
811 *viewp
= (void*) input_file
->file().get_view(offset
, 0, filesize
, false,
816 // Add a new library path.
819 Plugin_manager::set_extra_library_path(const char* path
)
821 this->extra_search_path_
= std::string(path
);
825 // Add a new input file.
828 Plugin_manager::add_input_file(const char* pathname
, bool is_lib
)
830 Input_file_argument
file(pathname
,
832 ? Input_file_argument::INPUT_FILE_TYPE_LIBRARY
833 : Input_file_argument::INPUT_FILE_TYPE_FILE
),
835 ? this->extra_search_path_
.c_str()
839 Input_argument
* input_argument
= new Input_argument(file
);
840 Task_token
* next_blocker
= new Task_token(true);
841 next_blocker
->add_blocker();
842 if (parameters
->incremental())
843 gold_error(_("input files added by plug-ins in --incremental mode not "
845 this->workqueue_
->queue_soon(new Read_symbols(this->input_objects_
,
856 this->this_blocker_
= next_blocker
;
857 this->any_added_
= true;
863 Pluginobj::Pluginobj(const std::string
& name
, Input_file
* input_file
,
864 off_t offset
, off_t filesize
)
865 : Object(name
, input_file
, false, offset
),
866 nsyms_(0), syms_(NULL
), symbols_(), filesize_(filesize
), comdat_map_()
870 // Return TRUE if a defined symbol is referenced from outside the
871 // universe of claimed objects. Only references from relocatable,
872 // non-IR (unclaimed) objects count as a reference. References from
873 // dynamic objects count only as "visible".
876 is_referenced_from_outside(Symbol
* lsym
)
878 if (lsym
->in_real_elf())
880 if (parameters
->options().relocatable())
882 if (parameters
->options().is_undefined(lsym
->name()))
887 // Return TRUE if a defined symbol might be reachable from outside the
891 is_visible_from_outside(Symbol
* lsym
)
895 if (parameters
->options().export_dynamic() || parameters
->options().shared())
896 return lsym
->is_externally_visible();
900 // Get symbol resolution info.
903 Pluginobj::get_symbol_resolution_info(int nsyms
,
904 ld_plugin_symbol
* syms
,
907 // For version 1 of this interface, we cannot use
908 // LDPR_PREVAILING_DEF_IRONLY_EXP, so we return LDPR_PREVAILING_DEF
910 const ld_plugin_symbol_resolution ldpr_prevailing_def_ironly_exp
912 ? LDPR_PREVAILING_DEF_IRONLY_EXP
913 : LDPR_PREVAILING_DEF
);
915 if (nsyms
> this->nsyms_
)
918 if (static_cast<size_t>(nsyms
) > this->symbols_
.size())
920 // We never decided to include this object. We mark all symbols as
922 gold_assert(this->symbols_
.size() == 0);
923 for (int i
= 0; i
< nsyms
; i
++)
924 syms
[i
].resolution
= LDPR_PREEMPTED_REG
;
928 for (int i
= 0; i
< nsyms
; i
++)
930 ld_plugin_symbol
* isym
= &syms
[i
];
931 Symbol
* lsym
= this->symbols_
[i
];
932 ld_plugin_symbol_resolution res
= LDPR_UNKNOWN
;
934 if (lsym
->is_undefined())
935 // The symbol remains undefined.
937 else if (isym
->def
== LDPK_UNDEF
938 || isym
->def
== LDPK_WEAKUNDEF
939 || isym
->def
== LDPK_COMMON
)
941 // The original symbol was undefined or common.
942 if (lsym
->source() != Symbol::FROM_OBJECT
)
943 res
= LDPR_RESOLVED_EXEC
;
944 else if (lsym
->object()->pluginobj() == this)
946 if (is_referenced_from_outside(lsym
))
947 res
= LDPR_PREVAILING_DEF
;
948 else if (is_visible_from_outside(lsym
))
949 res
= ldpr_prevailing_def_ironly_exp
;
951 res
= LDPR_PREVAILING_DEF_IRONLY
;
953 else if (lsym
->object()->pluginobj() != NULL
)
954 res
= LDPR_RESOLVED_IR
;
955 else if (lsym
->object()->is_dynamic())
956 res
= LDPR_RESOLVED_DYN
;
958 res
= LDPR_RESOLVED_EXEC
;
962 // The original symbol was a definition.
963 if (lsym
->source() != Symbol::FROM_OBJECT
)
964 res
= LDPR_PREEMPTED_REG
;
965 else if (lsym
->object() == static_cast<const Object
*>(this))
967 if (is_referenced_from_outside(lsym
))
968 res
= LDPR_PREVAILING_DEF
;
969 else if (is_visible_from_outside(lsym
))
970 res
= ldpr_prevailing_def_ironly_exp
;
972 res
= LDPR_PREVAILING_DEF_IRONLY
;
975 res
= (lsym
->object()->pluginobj() != NULL
977 : LDPR_PREEMPTED_REG
);
979 isym
->resolution
= res
;
984 // Return TRUE if the comdat group with key COMDAT_KEY from this object
988 Pluginobj::include_comdat_group(std::string comdat_key
, Layout
* layout
)
990 std::pair
<Comdat_map::iterator
, bool> ins
=
991 this->comdat_map_
.insert(std::make_pair(comdat_key
, false));
993 // If this is the first time we've seen this comdat key, ask the
994 // layout object whether it should be included.
996 ins
.first
->second
= layout
->find_or_add_kept_section(comdat_key
,
1000 return ins
.first
->second
;
1003 // Class Sized_pluginobj.
1005 template<int size
, bool big_endian
>
1006 Sized_pluginobj
<size
, big_endian
>::Sized_pluginobj(
1007 const std::string
& name
,
1008 Input_file
* input_file
,
1011 : Pluginobj(name
, input_file
, offset
, filesize
)
1015 // Read the symbols. Not used for plugin objects.
1017 template<int size
, bool big_endian
>
1019 Sized_pluginobj
<size
, big_endian
>::do_read_symbols(Read_symbols_data
*)
1024 // Lay out the input sections. Not used for plugin objects.
1026 template<int size
, bool big_endian
>
1028 Sized_pluginobj
<size
, big_endian
>::do_layout(Symbol_table
*, Layout
*,
1034 // Add the symbols to the symbol table.
1036 template<int size
, bool big_endian
>
1038 Sized_pluginobj
<size
, big_endian
>::do_add_symbols(Symbol_table
* symtab
,
1042 const int sym_size
= elfcpp::Elf_sizes
<size
>::sym_size
;
1043 unsigned char symbuf
[sym_size
];
1044 elfcpp::Sym
<size
, big_endian
> sym(symbuf
);
1045 elfcpp::Sym_write
<size
, big_endian
> osym(symbuf
);
1047 typedef typename
elfcpp::Elf_types
<size
>::Elf_WXword Elf_size_type
;
1049 this->symbols_
.resize(this->nsyms_
);
1051 for (int i
= 0; i
< this->nsyms_
; ++i
)
1053 const struct ld_plugin_symbol
* isym
= &this->syms_
[i
];
1054 const char* name
= isym
->name
;
1055 const char* ver
= isym
->version
;
1056 elfcpp::Elf_Half shndx
;
1060 if (name
!= NULL
&& name
[0] == '\0')
1062 if (ver
!= NULL
&& ver
[0] == '\0')
1068 case LDPK_WEAKUNDEF
:
1069 bind
= elfcpp::STB_WEAK
;
1075 bind
= elfcpp::STB_GLOBAL
;
1083 shndx
= elfcpp::SHN_ABS
;
1086 shndx
= elfcpp::SHN_COMMON
;
1089 case LDPK_WEAKUNDEF
:
1091 shndx
= elfcpp::SHN_UNDEF
;
1095 switch (isym
->visibility
)
1097 case LDPV_PROTECTED
:
1098 vis
= elfcpp::STV_PROTECTED
;
1101 vis
= elfcpp::STV_INTERNAL
;
1104 vis
= elfcpp::STV_HIDDEN
;
1108 vis
= elfcpp::STV_DEFAULT
;
1112 if (isym
->comdat_key
!= NULL
1113 && isym
->comdat_key
[0] != '\0'
1114 && !this->include_comdat_group(isym
->comdat_key
, layout
))
1115 shndx
= elfcpp::SHN_UNDEF
;
1117 osym
.put_st_name(0);
1118 osym
.put_st_value(0);
1119 osym
.put_st_size(static_cast<Elf_size_type
>(isym
->size
));
1120 osym
.put_st_info(bind
, elfcpp::STT_NOTYPE
);
1121 osym
.put_st_other(vis
, 0);
1122 osym
.put_st_shndx(shndx
);
1125 symtab
->add_from_pluginobj
<size
, big_endian
>(this, name
, ver
, &sym
);
1129 template<int size
, bool big_endian
>
1130 Archive::Should_include
1131 Sized_pluginobj
<size
, big_endian
>::do_should_include_member(
1132 Symbol_table
* symtab
,
1137 char* tmpbuf
= NULL
;
1138 size_t tmpbuflen
= 0;
1140 for (int i
= 0; i
< this->nsyms_
; ++i
)
1142 const struct ld_plugin_symbol
& sym
= this->syms_
[i
];
1143 const char* name
= sym
.name
;
1145 Archive::Should_include t
= Archive::should_include_member(symtab
,
1151 if (t
== Archive::SHOULD_INCLUDE_YES
)
1160 return Archive::SHOULD_INCLUDE_UNKNOWN
;
1163 // Iterate over global symbols, calling a visitor class V for each.
1165 template<int size
, bool big_endian
>
1167 Sized_pluginobj
<size
, big_endian
>::do_for_all_global_symbols(
1169 Library_base::Symbol_visitor_base
* v
)
1171 for (int i
= 0; i
< this->nsyms_
; ++i
)
1173 const struct ld_plugin_symbol
& sym
= this->syms_
[i
];
1174 if (sym
.def
!= LDPK_UNDEF
)
1179 // Iterate over local symbols, calling a visitor class V for each GOT offset
1180 // associated with a local symbol.
1181 template<int size
, bool big_endian
>
1183 Sized_pluginobj
<size
, big_endian
>::do_for_all_local_got_entries(
1184 Got_offset_list::Visitor
*) const
1189 // Get the size of a section. Not used for plugin objects.
1191 template<int size
, bool big_endian
>
1193 Sized_pluginobj
<size
, big_endian
>::do_section_size(unsigned int)
1199 // Get the name of a section. Not used for plugin objects.
1201 template<int size
, bool big_endian
>
1203 Sized_pluginobj
<size
, big_endian
>::do_section_name(unsigned int)
1206 return std::string();
1209 // Return a view of the contents of a section. Not used for plugin objects.
1211 template<int size
, bool big_endian
>
1212 const unsigned char*
1213 Sized_pluginobj
<size
, big_endian
>::do_section_contents(
1222 // Return section flags. Not used for plugin objects.
1224 template<int size
, bool big_endian
>
1226 Sized_pluginobj
<size
, big_endian
>::do_section_flags(unsigned int)
1232 // Return section entsize. Not used for plugin objects.
1234 template<int size
, bool big_endian
>
1236 Sized_pluginobj
<size
, big_endian
>::do_section_entsize(unsigned int)
1242 // Return section address. Not used for plugin objects.
1244 template<int size
, bool big_endian
>
1246 Sized_pluginobj
<size
, big_endian
>::do_section_address(unsigned int)
1252 // Return section type. Not used for plugin objects.
1254 template<int size
, bool big_endian
>
1256 Sized_pluginobj
<size
, big_endian
>::do_section_type(unsigned int)
1262 // Return the section link field. Not used for plugin objects.
1264 template<int size
, bool big_endian
>
1266 Sized_pluginobj
<size
, big_endian
>::do_section_link(unsigned int)
1272 // Return the section link field. Not used for plugin objects.
1274 template<int size
, bool big_endian
>
1276 Sized_pluginobj
<size
, big_endian
>::do_section_info(unsigned int)
1282 // Return the section alignment. Not used for plugin objects.
1284 template<int size
, bool big_endian
>
1286 Sized_pluginobj
<size
, big_endian
>::do_section_addralign(unsigned int)
1292 // Return the Xindex structure to use. Not used for plugin objects.
1294 template<int size
, bool big_endian
>
1296 Sized_pluginobj
<size
, big_endian
>::do_initialize_xindex()
1302 // Get symbol counts. Don't count plugin objects; the replacement
1303 // files will provide the counts.
1305 template<int size
, bool big_endian
>
1307 Sized_pluginobj
<size
, big_endian
>::do_get_global_symbol_counts(
1308 const Symbol_table
*,
1316 // Get symbols. Not used for plugin objects.
1318 template<int size
, bool big_endian
>
1319 const Object::Symbols
*
1320 Sized_pluginobj
<size
, big_endian
>::do_get_global_symbols() const
1325 // Class Plugin_finish. This task runs after all replacement files have
1326 // been added. For now, it's a placeholder for a possible plugin API
1327 // to allow the plugin to release most of its resources. The cleanup
1328 // handlers must be called later, because they can remove the temporary
1329 // object files that are needed until the end of the link.
1331 class Plugin_finish
: public Task
1334 Plugin_finish(Task_token
* this_blocker
, Task_token
* next_blocker
)
1335 : this_blocker_(this_blocker
), next_blocker_(next_blocker
)
1340 if (this->this_blocker_
!= NULL
)
1341 delete this->this_blocker_
;
1347 if (this->this_blocker_
!= NULL
&& this->this_blocker_
->is_blocked())
1348 return this->this_blocker_
;
1353 locks(Task_locker
* tl
)
1354 { tl
->add(this, this->next_blocker_
); }
1359 // We could call early cleanup handlers here.
1364 { return "Plugin_finish"; }
1367 Task_token
* this_blocker_
;
1368 Task_token
* next_blocker_
;
1371 // Class Plugin_hook.
1373 Plugin_hook::~Plugin_hook()
1377 // Return whether a Plugin_hook task is runnable.
1380 Plugin_hook::is_runnable()
1382 if (this->this_blocker_
!= NULL
&& this->this_blocker_
->is_blocked())
1383 return this->this_blocker_
;
1387 // Return a Task_locker for a Plugin_hook task. We don't need any
1391 Plugin_hook::locks(Task_locker
*)
1395 // Run the "all symbols read" plugin hook.
1398 Plugin_hook::run(Workqueue
* workqueue
)
1400 gold_assert(this->options_
.has_plugins());
1401 Symbol
* start_sym
= this->symtab_
->lookup(parameters
->entry());
1402 if (start_sym
!= NULL
)
1403 start_sym
->set_in_real_elf();
1405 this->options_
.plugins()->all_symbols_read(workqueue
,
1407 this->input_objects_
,
1411 &this->this_blocker_
);
1412 workqueue
->queue_soon(new Plugin_finish(this->this_blocker_
,
1413 this->next_blocker_
));
1416 // The C interface routines called by the plugins.
1418 #ifdef ENABLE_PLUGINS
1420 // Register a claim-file handler.
1422 static enum ld_plugin_status
1423 register_claim_file(ld_plugin_claim_file_handler handler
)
1425 gold_assert(parameters
->options().has_plugins());
1426 parameters
->options().plugins()->set_claim_file_handler(handler
);
1430 // Register an all-symbols-read handler.
1432 static enum ld_plugin_status
1433 register_all_symbols_read(ld_plugin_all_symbols_read_handler handler
)
1435 gold_assert(parameters
->options().has_plugins());
1436 parameters
->options().plugins()->set_all_symbols_read_handler(handler
);
1440 // Register a cleanup handler.
1442 static enum ld_plugin_status
1443 register_cleanup(ld_plugin_cleanup_handler handler
)
1445 gold_assert(parameters
->options().has_plugins());
1446 parameters
->options().plugins()->set_cleanup_handler(handler
);
1450 // Add symbols from a plugin-claimed input file.
1452 static enum ld_plugin_status
1453 add_symbols(void* handle
, int nsyms
, const ld_plugin_symbol
* syms
)
1455 gold_assert(parameters
->options().has_plugins());
1456 Pluginobj
* obj
= parameters
->options().plugins()->make_plugin_object(
1457 static_cast<unsigned int>(reinterpret_cast<intptr_t>(handle
)));
1460 obj
->store_incoming_symbols(nsyms
, syms
);
1464 // Get the input file information with an open (possibly re-opened)
1467 static enum ld_plugin_status
1468 get_input_file(const void* handle
, struct ld_plugin_input_file
* file
)
1470 gold_assert(parameters
->options().has_plugins());
1471 unsigned int obj_index
=
1472 static_cast<unsigned int>(reinterpret_cast<intptr_t>(handle
));
1473 return parameters
->options().plugins()->get_input_file(obj_index
, file
);
1476 // Release the input file.
1478 static enum ld_plugin_status
1479 release_input_file(const void* handle
)
1481 gold_assert(parameters
->options().has_plugins());
1482 unsigned int obj_index
=
1483 static_cast<unsigned int>(reinterpret_cast<intptr_t>(handle
));
1484 return parameters
->options().plugins()->release_input_file(obj_index
);
1487 static enum ld_plugin_status
1488 get_view(const void *handle
, const void **viewp
)
1490 gold_assert(parameters
->options().has_plugins());
1491 unsigned int obj_index
=
1492 static_cast<unsigned int>(reinterpret_cast<intptr_t>(handle
));
1493 return parameters
->options().plugins()->get_view(obj_index
, viewp
);
1496 // Get the symbol resolution info for a plugin-claimed input file.
1498 static enum ld_plugin_status
1499 get_symbols(const void* handle
, int nsyms
, ld_plugin_symbol
* syms
)
1501 gold_assert(parameters
->options().has_plugins());
1502 Object
* obj
= parameters
->options().plugins()->object(
1503 static_cast<unsigned int>(reinterpret_cast<intptr_t>(handle
)));
1506 Pluginobj
* plugin_obj
= obj
->pluginobj();
1507 if (plugin_obj
== NULL
)
1509 return plugin_obj
->get_symbol_resolution_info(nsyms
, syms
, 1);
1512 // Version 2 of the above. The only difference is that this version
1513 // is allowed to return the resolution code LDPR_PREVAILING_DEF_IRONLY_EXP.
1515 static enum ld_plugin_status
1516 get_symbols_v2(const void* handle
, int nsyms
, ld_plugin_symbol
* syms
)
1518 gold_assert(parameters
->options().has_plugins());
1519 Object
* obj
= parameters
->options().plugins()->object(
1520 static_cast<unsigned int>(reinterpret_cast<intptr_t>(handle
)));
1523 Pluginobj
* plugin_obj
= obj
->pluginobj();
1524 if (plugin_obj
== NULL
)
1526 return plugin_obj
->get_symbol_resolution_info(nsyms
, syms
, 2);
1529 // Add a new (real) input file generated by a plugin.
1531 static enum ld_plugin_status
1532 add_input_file(const char* pathname
)
1534 gold_assert(parameters
->options().has_plugins());
1535 return parameters
->options().plugins()->add_input_file(pathname
, false);
1538 // Add a new (real) library required by a plugin.
1540 static enum ld_plugin_status
1541 add_input_library(const char* pathname
)
1543 gold_assert(parameters
->options().has_plugins());
1544 return parameters
->options().plugins()->add_input_file(pathname
, true);
1547 // Set the extra library path to be used by libraries added via
1548 // add_input_library
1550 static enum ld_plugin_status
1551 set_extra_library_path(const char* path
)
1553 gold_assert(parameters
->options().has_plugins());
1554 return parameters
->options().plugins()->set_extra_library_path(path
);
1557 // Issue a diagnostic message from a plugin.
1559 static enum ld_plugin_status
1560 message(int level
, const char* format
, ...)
1563 va_start(args
, format
);
1568 parameters
->errors()->info(format
, args
);
1571 parameters
->errors()->warning(format
, args
);
1575 parameters
->errors()->error(format
, args
);
1578 parameters
->errors()->fatal(format
, args
);
1586 // Get the section count of the object corresponding to the handle. This
1587 // plugin interface can only be called in the claim_file handler of the plugin.
1589 static enum ld_plugin_status
1590 get_input_section_count(const void* handle
, unsigned int* count
)
1592 gold_assert(parameters
->options().has_plugins());
1594 if (!parameters
->options().plugins()->in_claim_file_handler())
1597 Object
* obj
= parameters
->options().plugins()->get_elf_object(handle
);
1602 *count
= obj
->shnum();
1606 // Get the type of the specified section in the object corresponding
1607 // to the handle. This plugin interface can only be called in the
1608 // claim_file handler of the plugin.
1610 static enum ld_plugin_status
1611 get_input_section_type(const struct ld_plugin_section section
,
1614 gold_assert(parameters
->options().has_plugins());
1616 if (!parameters
->options().plugins()->in_claim_file_handler())
1620 = parameters
->options().plugins()->get_elf_object(section
.handle
);
1623 return LDPS_BAD_HANDLE
;
1625 *type
= obj
->section_type(section
.shndx
);
1629 // Get the name of the specified section in the object corresponding
1630 // to the handle. This plugin interface can only be called in the
1631 // claim_file handler of the plugin.
1633 static enum ld_plugin_status
1634 get_input_section_name(const struct ld_plugin_section section
,
1635 char** section_name_ptr
)
1637 gold_assert(parameters
->options().has_plugins());
1639 if (!parameters
->options().plugins()->in_claim_file_handler())
1643 = parameters
->options().plugins()->get_elf_object(section
.handle
);
1646 return LDPS_BAD_HANDLE
;
1648 // Check if the object is locked before getting the section name.
1649 gold_assert(obj
->is_locked());
1651 const std::string section_name
= obj
->section_name(section
.shndx
);
1652 *section_name_ptr
= static_cast<char*>(malloc(section_name
.length() + 1));
1653 memcpy(*section_name_ptr
, section_name
.c_str(), section_name
.length() + 1);
1657 // Get the contents of the specified section in the object corresponding
1658 // to the handle. This plugin interface can only be called in the
1659 // claim_file handler of the plugin.
1661 static enum ld_plugin_status
1662 get_input_section_contents(const struct ld_plugin_section section
,
1663 const unsigned char** section_contents_ptr
,
1666 gold_assert(parameters
->options().has_plugins());
1668 if (!parameters
->options().plugins()->in_claim_file_handler())
1672 = parameters
->options().plugins()->get_elf_object(section
.handle
);
1675 return LDPS_BAD_HANDLE
;
1677 // Check if the object is locked before getting the section contents.
1678 gold_assert(obj
->is_locked());
1680 section_size_type plen
;
1681 *section_contents_ptr
1682 = obj
->section_contents(section
.shndx
, &plen
, false);
1687 // Specify the ordering of sections in the final layout. The sections are
1688 // specified as (handle,shndx) pairs in the two arrays in the order in
1689 // which they should appear in the final layout.
1691 static enum ld_plugin_status
1692 update_section_order(const struct ld_plugin_section
* section_list
,
1693 unsigned int num_sections
)
1695 gold_assert(parameters
->options().has_plugins());
1697 if (num_sections
== 0)
1700 if (section_list
== NULL
)
1703 Layout
* layout
= parameters
->options().plugins()->layout();
1704 gold_assert (layout
!= NULL
);
1706 std::map
<Section_id
, unsigned int>* order_map
1707 = layout
->get_section_order_map();
1709 /* Store the mapping from Section_id to section position in layout's
1710 order_map to consult after output sections are added. */
1711 for (unsigned int i
= 0; i
< num_sections
; ++i
)
1713 Object
* obj
= parameters
->options().plugins()->get_elf_object(
1714 section_list
[i
].handle
);
1716 return LDPS_BAD_HANDLE
;
1717 unsigned int shndx
= section_list
[i
].shndx
;
1718 Section_id
secn_id(obj
, shndx
);
1719 (*order_map
)[secn_id
] = i
+ 1;
1725 // Let the linker know that the sections could be reordered.
1727 static enum ld_plugin_status
1728 allow_section_ordering()
1730 gold_assert(parameters
->options().has_plugins());
1731 Layout
* layout
= parameters
->options().plugins()->layout();
1732 layout
->set_section_ordering_specified();
1736 // Let the linker know that a subset of sections could be mapped
1737 // to a unique segment.
1739 static enum ld_plugin_status
1740 allow_unique_segment_for_sections()
1742 gold_assert(parameters
->options().has_plugins());
1743 Layout
* layout
= parameters
->options().plugins()->layout();
1744 layout
->set_unique_segment_for_sections_specified();
1748 // This function should map the list of sections specified in the
1749 // SECTION_LIST to a unique segment. ELF segments do not have names
1750 // and the NAME is used to identify Output Section which should contain
1751 // the list of sections. This Output Section will then be mapped to
1752 // a unique segment. FLAGS is used to specify if any additional segment
1753 // flags need to be set. For instance, a specific segment flag can be
1754 // set to identify this segment. Unsetting segment flags is not possible.
1755 // ALIGN specifies the alignment of the segment.
1757 static enum ld_plugin_status
1758 unique_segment_for_sections(const char* segment_name
,
1761 const struct ld_plugin_section
* section_list
,
1762 unsigned int num_sections
)
1764 gold_assert(parameters
->options().has_plugins());
1766 if (num_sections
== 0)
1769 if (section_list
== NULL
)
1772 Layout
* layout
= parameters
->options().plugins()->layout();
1773 gold_assert (layout
!= NULL
);
1775 Layout::Unique_segment_info
* s
= new Layout::Unique_segment_info
;
1776 s
->name
= segment_name
;
1780 for (unsigned int i
= 0; i
< num_sections
; ++i
)
1782 Object
* obj
= parameters
->options().plugins()->get_elf_object(
1783 section_list
[i
].handle
);
1785 return LDPS_BAD_HANDLE
;
1786 unsigned int shndx
= section_list
[i
].shndx
;
1787 Const_section_id
secn_id(obj
, shndx
);
1788 layout
->insert_section_segment_map(secn_id
, s
);
1794 #endif // ENABLE_PLUGINS
1796 // Allocate a Pluginobj object of the appropriate size and endianness.
1799 make_sized_plugin_object(Input_file
* input_file
, off_t offset
, off_t filesize
)
1801 Pluginobj
* obj
= NULL
;
1803 parameters_force_valid_target();
1804 const Target
& target(parameters
->target());
1806 if (target
.get_size() == 32)
1808 if (target
.is_big_endian())
1809 #ifdef HAVE_TARGET_32_BIG
1810 obj
= new Sized_pluginobj
<32, true>(input_file
->filename(),
1811 input_file
, offset
, filesize
);
1813 gold_error(_("%s: not configured to support "
1814 "32-bit big-endian object"),
1815 input_file
->filename().c_str());
1818 #ifdef HAVE_TARGET_32_LITTLE
1819 obj
= new Sized_pluginobj
<32, false>(input_file
->filename(),
1820 input_file
, offset
, filesize
);
1822 gold_error(_("%s: not configured to support "
1823 "32-bit little-endian object"),
1824 input_file
->filename().c_str());
1827 else if (target
.get_size() == 64)
1829 if (target
.is_big_endian())
1830 #ifdef HAVE_TARGET_64_BIG
1831 obj
= new Sized_pluginobj
<64, true>(input_file
->filename(),
1832 input_file
, offset
, filesize
);
1834 gold_error(_("%s: not configured to support "
1835 "64-bit big-endian object"),
1836 input_file
->filename().c_str());
1839 #ifdef HAVE_TARGET_64_LITTLE
1840 obj
= new Sized_pluginobj
<64, false>(input_file
->filename(),
1841 input_file
, offset
, filesize
);
1843 gold_error(_("%s: not configured to support "
1844 "64-bit little-endian object"),
1845 input_file
->filename().c_str());
1849 gold_assert(obj
!= NULL
);
1853 } // End namespace gold.