1 // plugin.cc -- plugin manager for gold -*- C++ -*-
3 // Copyright 2008, 2009, 2010 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.
35 #include "parameters.h"
51 // The linker's exported interfaces.
56 static enum ld_plugin_status
57 register_claim_file(ld_plugin_claim_file_handler handler
);
59 static enum ld_plugin_status
60 register_all_symbols_read(ld_plugin_all_symbols_read_handler handler
);
62 static enum ld_plugin_status
63 register_cleanup(ld_plugin_cleanup_handler handler
);
65 static enum ld_plugin_status
66 add_symbols(void *handle
, int nsyms
, const struct ld_plugin_symbol
*syms
);
68 static enum ld_plugin_status
69 get_input_file(const void *handle
, struct ld_plugin_input_file
*file
);
71 static enum ld_plugin_status
72 release_input_file(const void *handle
);
74 static enum ld_plugin_status
75 get_symbols(const void *handle
, int nsyms
, struct ld_plugin_symbol
*syms
);
77 static enum ld_plugin_status
78 add_input_file(char *pathname
);
80 static enum ld_plugin_status
81 add_input_library(char *pathname
);
83 static enum ld_plugin_status
84 message(int level
, const char *format
, ...);
88 #endif // ENABLE_PLUGINS
90 static Pluginobj
* make_sized_plugin_object(Input_file
* input_file
,
91 off_t offset
, off_t filesize
);
95 // Load one plugin library.
100 #ifdef ENABLE_PLUGINS
101 // Load the plugin library.
102 // FIXME: Look for the library in standard locations.
103 this->handle_
= dlopen(this->filename_
.c_str(), RTLD_NOW
);
104 if (this->handle_
== NULL
)
106 gold_error(_("%s: could not load plugin library"),
107 this->filename_
.c_str());
111 // Find the plugin's onload entry point.
112 void* ptr
= dlsym(this->handle_
, "onload");
115 gold_error(_("%s: could not find onload entry point"),
116 this->filename_
.c_str());
119 ld_plugin_onload onload
;
120 gold_assert(sizeof(onload
) == sizeof(ptr
));
121 memcpy(&onload
, &ptr
, sizeof(ptr
));
123 // Get the linker's version number.
124 const char* ver
= get_version_string();
127 sscanf(ver
, "%d.%d", &major
, &minor
);
129 // Allocate and populate a transfer vector.
130 const int tv_fixed_size
= 14;
131 int tv_size
= this->args_
.size() + tv_fixed_size
;
132 ld_plugin_tv
*tv
= new ld_plugin_tv
[tv_size
];
134 // Put LDPT_MESSAGE at the front of the list so the plugin can use it
135 // while processing subsequent entries.
137 tv
[i
].tv_tag
= LDPT_MESSAGE
;
138 tv
[i
].tv_u
.tv_message
= message
;
141 tv
[i
].tv_tag
= LDPT_API_VERSION
;
142 tv
[i
].tv_u
.tv_val
= LD_PLUGIN_API_VERSION
;
145 tv
[i
].tv_tag
= LDPT_GOLD_VERSION
;
146 tv
[i
].tv_u
.tv_val
= major
* 100 + minor
;
149 tv
[i
].tv_tag
= LDPT_LINKER_OUTPUT
;
150 if (parameters
->options().relocatable())
151 tv
[i
].tv_u
.tv_val
= LDPO_REL
;
152 else if (parameters
->options().shared())
153 tv
[i
].tv_u
.tv_val
= LDPO_DYN
;
155 tv
[i
].tv_u
.tv_val
= LDPO_EXEC
;
157 for (unsigned int j
= 0; j
< this->args_
.size(); ++j
)
160 tv
[i
].tv_tag
= LDPT_OPTION
;
161 tv
[i
].tv_u
.tv_string
= this->args_
[j
].c_str();
165 tv
[i
].tv_tag
= LDPT_REGISTER_CLAIM_FILE_HOOK
;
166 tv
[i
].tv_u
.tv_register_claim_file
= register_claim_file
;
169 tv
[i
].tv_tag
= LDPT_REGISTER_ALL_SYMBOLS_READ_HOOK
;
170 tv
[i
].tv_u
.tv_register_all_symbols_read
= register_all_symbols_read
;
173 tv
[i
].tv_tag
= LDPT_REGISTER_CLEANUP_HOOK
;
174 tv
[i
].tv_u
.tv_register_cleanup
= register_cleanup
;
177 tv
[i
].tv_tag
= LDPT_ADD_SYMBOLS
;
178 tv
[i
].tv_u
.tv_add_symbols
= add_symbols
;
181 tv
[i
].tv_tag
= LDPT_GET_INPUT_FILE
;
182 tv
[i
].tv_u
.tv_get_input_file
= get_input_file
;
185 tv
[i
].tv_tag
= LDPT_RELEASE_INPUT_FILE
;
186 tv
[i
].tv_u
.tv_release_input_file
= release_input_file
;
189 tv
[i
].tv_tag
= LDPT_GET_SYMBOLS
;
190 tv
[i
].tv_u
.tv_get_symbols
= get_symbols
;
193 tv
[i
].tv_tag
= LDPT_ADD_INPUT_FILE
;
194 tv
[i
].tv_u
.tv_add_input_file
= add_input_file
;
197 tv
[i
].tv_tag
= LDPT_ADD_INPUT_LIBRARY
;
198 tv
[i
].tv_u
.tv_add_input_library
= add_input_library
;
201 tv
[i
].tv_tag
= LDPT_NULL
;
202 tv
[i
].tv_u
.tv_val
= 0;
204 gold_assert(i
== tv_size
- 1);
206 // Call the onload entry point.
210 #endif // ENABLE_PLUGINS
213 // Call the plugin claim-file handler.
216 Plugin::claim_file(struct ld_plugin_input_file
*plugin_input_file
)
220 if (this->claim_file_handler_
!= NULL
)
222 (*this->claim_file_handler_
)(plugin_input_file
, &claimed
);
229 // Call the all-symbols-read handler.
232 Plugin::all_symbols_read()
234 if (this->all_symbols_read_handler_
!= NULL
)
235 (*this->all_symbols_read_handler_
)();
238 // Call the cleanup handler.
243 if (this->cleanup_handler_
!= NULL
&& !this->cleanup_done_
)
245 // Set this flag before calling to prevent a recursive plunge
246 // in the event that a plugin's cleanup handler issues a
248 this->cleanup_done_
= true;
249 (*this->cleanup_handler_
)();
253 // Plugin_manager methods.
255 Plugin_manager::~Plugin_manager()
257 for (Plugin_list::iterator p
= this->plugins_
.begin();
258 p
!= this->plugins_
.end();
261 this->plugins_
.clear();
262 for (Object_list::iterator obj
= this->objects_
.begin();
263 obj
!= this->objects_
.end();
266 this->objects_
.clear();
269 // Load all plugin libraries.
272 Plugin_manager::load_plugins()
274 for (this->current_
= this->plugins_
.begin();
275 this->current_
!= this->plugins_
.end();
277 (*this->current_
)->load();
280 // Call the plugin claim-file handlers in turn to see if any claim the file.
283 Plugin_manager::claim_file(Input_file
* input_file
, off_t offset
,
286 if (this->in_replacement_phase_
)
289 unsigned int handle
= this->objects_
.size();
290 this->input_file_
= input_file
;
291 this->plugin_input_file_
.name
= input_file
->filename().c_str();
292 this->plugin_input_file_
.fd
= input_file
->file().descriptor();
293 this->plugin_input_file_
.offset
= offset
;
294 this->plugin_input_file_
.filesize
= filesize
;
295 this->plugin_input_file_
.handle
= reinterpret_cast<void*>(handle
);
297 for (this->current_
= this->plugins_
.begin();
298 this->current_
!= this->plugins_
.end();
301 if ((*this->current_
)->claim_file(&this->plugin_input_file_
))
303 if (this->objects_
.size() > handle
)
304 return this->objects_
[handle
];
306 // If the plugin claimed the file but did not call the
307 // add_symbols callback, we need to create the Pluginobj now.
308 Pluginobj
* obj
= this->make_plugin_object(handle
);
316 // Call the all-symbols-read handlers.
319 Plugin_manager::all_symbols_read(Workqueue
* workqueue
, Task
* task
,
320 Input_objects
* input_objects
,
321 Symbol_table
* symtab
, Layout
* layout
,
322 Dirsearch
* dirpath
, Mapfile
* mapfile
,
323 Task_token
** last_blocker
)
325 this->in_replacement_phase_
= true;
326 this->workqueue_
= workqueue
;
328 this->input_objects_
= input_objects
;
329 this->symtab_
= symtab
;
330 this->layout_
= layout
;
331 this->dirpath_
= dirpath
;
332 this->mapfile_
= mapfile
;
333 this->this_blocker_
= NULL
;
335 for (this->current_
= this->plugins_
.begin();
336 this->current_
!= this->plugins_
.end();
338 (*this->current_
)->all_symbols_read();
340 *last_blocker
= this->this_blocker_
;
343 // Layout deferred objects.
346 Plugin_manager::layout_deferred_objects()
348 Deferred_layout_list::iterator obj
;
350 for (obj
= this->deferred_layout_objects_
.begin();
351 obj
!= this->deferred_layout_objects_
.end();
353 (*obj
)->layout_deferred_sections(this->layout_
);
356 // Call the cleanup handlers.
359 Plugin_manager::cleanup()
361 for (this->current_
= this->plugins_
.begin();
362 this->current_
!= this->plugins_
.end();
364 (*this->current_
)->cleanup();
367 // Make a new Pluginobj object. This is called when the plugin calls
368 // the add_symbols API.
371 Plugin_manager::make_plugin_object(unsigned int handle
)
373 // Make sure we aren't asked to make an object for the same handle twice.
374 if (this->objects_
.size() != handle
)
377 Pluginobj
* obj
= make_sized_plugin_object(this->input_file_
,
378 this->plugin_input_file_
.offset
,
379 this->plugin_input_file_
.filesize
);
380 this->objects_
.push_back(obj
);
384 // Get the input file information with an open (possibly re-opened)
388 Plugin_manager::get_input_file(unsigned int handle
,
389 struct ld_plugin_input_file
*file
)
391 Pluginobj
* obj
= this->object(handle
);
393 return LDPS_BAD_HANDLE
;
395 obj
->lock(this->task_
);
396 file
->name
= obj
->filename().c_str();
397 file
->fd
= obj
->descriptor();
398 file
->offset
= obj
->offset();
399 file
->filesize
= obj
->filesize();
400 file
->handle
= reinterpret_cast<void*>(handle
);
404 // Release the input file.
407 Plugin_manager::release_input_file(unsigned int handle
)
409 Pluginobj
* obj
= this->object(handle
);
411 return LDPS_BAD_HANDLE
;
413 obj
->unlock(this->task_
);
417 // Add a new input file.
420 Plugin_manager::add_input_file(char *pathname
, bool is_lib
)
422 Input_file_argument
file(pathname
,
424 ? Input_file_argument::INPUT_FILE_TYPE_LIBRARY
425 : Input_file_argument::INPUT_FILE_TYPE_FILE
),
426 "", false, this->options_
);
427 Input_argument
* input_argument
= new Input_argument(file
);
428 Task_token
* next_blocker
= new Task_token(true);
429 next_blocker
->add_blocker();
430 if (this->layout_
->incremental_inputs())
431 gold_error(_("input files added by plug-ins in --incremental mode not "
433 this->workqueue_
->queue_soon(new Read_symbols(this->input_objects_
,
444 this->this_blocker_
= next_blocker
;
450 Pluginobj::Pluginobj(const std::string
& name
, Input_file
* input_file
,
451 off_t offset
, off_t filesize
)
452 : Object(name
, input_file
, false, offset
),
453 nsyms_(0), syms_(NULL
), symbols_(), filesize_(filesize
), comdat_map_()
457 // Return TRUE if a defined symbol might be reachable from outside the
458 // universe of claimed objects.
461 is_visible_from_outside(Symbol
* lsym
)
463 if (lsym
->in_real_elf())
465 if (parameters
->options().relocatable())
467 if (parameters
->options().export_dynamic() || parameters
->options().shared())
468 return lsym
->is_externally_visible();
472 // Get symbol resolution info.
475 Pluginobj::get_symbol_resolution_info(int nsyms
, ld_plugin_symbol
* syms
) const
477 if (nsyms
> this->nsyms_
)
480 if (static_cast<size_t>(nsyms
) > this->symbols_
.size())
482 // We never decided to include this object. We mark all symbols as
484 gold_assert (this->symbols_
.size() == 0);
485 for (int i
= 0; i
< nsyms
; i
++)
486 syms
[i
].resolution
= LDPR_PREEMPTED_REG
;
490 for (int i
= 0; i
< nsyms
; i
++)
492 ld_plugin_symbol
* isym
= &syms
[i
];
493 Symbol
* lsym
= this->symbols_
[i
];
494 ld_plugin_symbol_resolution res
= LDPR_UNKNOWN
;
496 if (lsym
->is_undefined())
497 // The symbol remains undefined.
499 else if (isym
->def
== LDPK_UNDEF
500 || isym
->def
== LDPK_WEAKUNDEF
501 || isym
->def
== LDPK_COMMON
)
503 // The original symbol was undefined or common.
504 if (lsym
->source() != Symbol::FROM_OBJECT
)
505 res
= LDPR_RESOLVED_EXEC
;
506 else if (lsym
->object()->pluginobj() != NULL
)
507 res
= LDPR_RESOLVED_IR
;
508 else if (lsym
->object()->is_dynamic())
509 res
= LDPR_RESOLVED_DYN
;
511 res
= LDPR_RESOLVED_EXEC
;
515 // The original symbol was a definition.
516 if (lsym
->source() != Symbol::FROM_OBJECT
)
517 res
= LDPR_PREEMPTED_REG
;
518 else if (lsym
->object() == static_cast<const Object
*>(this))
519 res
= (is_visible_from_outside(lsym
)
520 ? LDPR_PREVAILING_DEF
521 : LDPR_PREVAILING_DEF_IRONLY
);
523 res
= (lsym
->object()->pluginobj() != NULL
525 : LDPR_PREEMPTED_REG
);
527 isym
->resolution
= res
;
532 // Return TRUE if the comdat group with key COMDAT_KEY from this object
536 Pluginobj::include_comdat_group(std::string comdat_key
, Layout
* layout
)
538 std::pair
<Comdat_map::iterator
, bool> ins
=
539 this->comdat_map_
.insert(std::make_pair(comdat_key
, false));
541 // If this is the first time we've seen this comdat key, ask the
542 // layout object whether it should be included.
544 ins
.first
->second
= layout
->find_or_add_kept_section(comdat_key
,
548 return ins
.first
->second
;
551 // Class Sized_pluginobj.
553 template<int size
, bool big_endian
>
554 Sized_pluginobj
<size
, big_endian
>::Sized_pluginobj(
555 const std::string
& name
,
556 Input_file
* input_file
,
559 : Pluginobj(name
, input_file
, offset
, filesize
)
563 // Read the symbols. Not used for plugin objects.
565 template<int size
, bool big_endian
>
567 Sized_pluginobj
<size
, big_endian
>::do_read_symbols(Read_symbols_data
*)
572 // Lay out the input sections. Not used for plugin objects.
574 template<int size
, bool big_endian
>
576 Sized_pluginobj
<size
, big_endian
>::do_layout(Symbol_table
*, Layout
*,
582 // Add the symbols to the symbol table.
584 template<int size
, bool big_endian
>
586 Sized_pluginobj
<size
, big_endian
>::do_add_symbols(Symbol_table
* symtab
,
590 const int sym_size
= elfcpp::Elf_sizes
<size
>::sym_size
;
591 unsigned char symbuf
[sym_size
];
592 elfcpp::Sym
<size
, big_endian
> sym(symbuf
);
593 elfcpp::Sym_write
<size
, big_endian
> osym(symbuf
);
595 typedef typename
elfcpp::Elf_types
<size
>::Elf_WXword Elf_size_type
;
597 this->symbols_
.resize(this->nsyms_
);
599 for (int i
= 0; i
< this->nsyms_
; ++i
)
601 const struct ld_plugin_symbol
*isym
= &this->syms_
[i
];
602 const char* name
= isym
->name
;
603 const char* ver
= isym
->version
;
604 elfcpp::Elf_Half shndx
;
608 if (name
!= NULL
&& name
[0] == '\0')
610 if (ver
!= NULL
&& ver
[0] == '\0')
617 bind
= elfcpp::STB_WEAK
;
623 bind
= elfcpp::STB_GLOBAL
;
631 shndx
= elfcpp::SHN_ABS
;
634 shndx
= elfcpp::SHN_COMMON
;
639 shndx
= elfcpp::SHN_UNDEF
;
643 switch (isym
->visibility
)
646 vis
= elfcpp::STV_DEFAULT
;
649 vis
= elfcpp::STV_DEFAULT
;
652 vis
= elfcpp::STV_DEFAULT
;
656 vis
= elfcpp::STV_DEFAULT
;
660 if (isym
->comdat_key
!= NULL
661 && isym
->comdat_key
[0] != '\0'
662 && !this->include_comdat_group(isym
->comdat_key
, layout
))
663 shndx
= elfcpp::SHN_UNDEF
;
666 osym
.put_st_value(0);
667 osym
.put_st_size(static_cast<Elf_size_type
>(isym
->size
));
668 osym
.put_st_info(bind
, elfcpp::STT_NOTYPE
);
669 osym
.put_st_other(vis
, 0);
670 osym
.put_st_shndx(shndx
);
673 symtab
->add_from_pluginobj
<size
, big_endian
>(this, name
, ver
, &sym
);
677 template<int size
, bool big_endian
>
678 Archive::Should_include
679 Sized_pluginobj
<size
, big_endian
>::do_should_include_member(
680 Symbol_table
* symtab
, Read_symbols_data
*, std::string
* why
)
683 size_t tmpbuflen
= 0;
685 for (int i
= 0; i
< this->nsyms_
; ++i
) {
686 const struct ld_plugin_symbol
& sym
= this->syms_
[i
];
687 const char* name
= sym
.name
;
689 Archive::Should_include t
= Archive::should_include_member(symtab
, name
,
693 if (t
== Archive::SHOULD_INCLUDE_YES
)
702 return Archive::SHOULD_INCLUDE_UNKNOWN
;
705 // Get the size of a section. Not used for plugin objects.
707 template<int size
, bool big_endian
>
709 Sized_pluginobj
<size
, big_endian
>::do_section_size(unsigned int)
715 // Get the name of a section. Not used for plugin objects.
717 template<int size
, bool big_endian
>
719 Sized_pluginobj
<size
, big_endian
>::do_section_name(unsigned int)
722 return std::string();
725 // Return a view of the contents of a section. Not used for plugin objects.
727 template<int size
, bool big_endian
>
729 Sized_pluginobj
<size
, big_endian
>::do_section_contents(unsigned int)
737 // Return section flags. Not used for plugin objects.
739 template<int size
, bool big_endian
>
741 Sized_pluginobj
<size
, big_endian
>::do_section_flags(unsigned int)
747 // Return section entsize. Not used for plugin objects.
749 template<int size
, bool big_endian
>
751 Sized_pluginobj
<size
, big_endian
>::do_section_entsize(unsigned int)
757 // Return section address. Not used for plugin objects.
759 template<int size
, bool big_endian
>
761 Sized_pluginobj
<size
, big_endian
>::do_section_address(unsigned int)
767 // Return section type. Not used for plugin objects.
769 template<int size
, bool big_endian
>
771 Sized_pluginobj
<size
, big_endian
>::do_section_type(unsigned int)
777 // Return the section link field. Not used for plugin objects.
779 template<int size
, bool big_endian
>
781 Sized_pluginobj
<size
, big_endian
>::do_section_link(unsigned int)
787 // Return the section link field. Not used for plugin objects.
789 template<int size
, bool big_endian
>
791 Sized_pluginobj
<size
, big_endian
>::do_section_info(unsigned int)
797 // Return the section alignment. Not used for plugin objects.
799 template<int size
, bool big_endian
>
801 Sized_pluginobj
<size
, big_endian
>::do_section_addralign(unsigned int)
807 // Return the Xindex structure to use. Not used for plugin objects.
809 template<int size
, bool big_endian
>
811 Sized_pluginobj
<size
, big_endian
>::do_initialize_xindex()
817 // Get symbol counts. Not used for plugin objects.
819 template<int size
, bool big_endian
>
821 Sized_pluginobj
<size
, big_endian
>::do_get_global_symbol_counts(const Symbol_table
*,
822 size_t*, size_t*) const
827 // Get symbols. Not used for plugin objects.
829 template<int size
, bool big_endian
>
830 const Object::Symbols
*
831 Sized_pluginobj
<size
, big_endian
>::do_get_global_symbols() const
836 // Class Plugin_finish. This task runs after all replacement files have
837 // been added. It calls each plugin's cleanup handler.
839 class Plugin_finish
: public Task
842 Plugin_finish(Task_token
* this_blocker
, Task_token
* next_blocker
)
843 : this_blocker_(this_blocker
), next_blocker_(next_blocker
)
848 if (this->this_blocker_
!= NULL
)
849 delete this->this_blocker_
;
855 if (this->this_blocker_
!= NULL
&& this->this_blocker_
->is_blocked())
856 return this->this_blocker_
;
861 locks(Task_locker
* tl
)
862 { tl
->add(this, this->next_blocker_
); }
867 Plugin_manager
* plugins
= parameters
->options().plugins();
868 gold_assert(plugins
!= NULL
);
874 { return "Plugin_finish"; }
877 Task_token
* this_blocker_
;
878 Task_token
* next_blocker_
;
881 // Class Plugin_hook.
883 Plugin_hook::~Plugin_hook()
887 // Return whether a Plugin_hook task is runnable.
890 Plugin_hook::is_runnable()
892 if (this->this_blocker_
!= NULL
&& this->this_blocker_
->is_blocked())
893 return this->this_blocker_
;
897 // Return a Task_locker for a Plugin_hook task. We don't need any
901 Plugin_hook::locks(Task_locker
*)
905 // Run the "all symbols read" plugin hook.
908 Plugin_hook::run(Workqueue
* workqueue
)
910 gold_assert(this->options_
.has_plugins());
911 this->options_
.plugins()->all_symbols_read(workqueue
,
913 this->input_objects_
,
918 &this->this_blocker_
);
919 workqueue
->queue_soon(new Plugin_finish(this->this_blocker_
,
920 this->next_blocker_
));
923 // The C interface routines called by the plugins.
925 #ifdef ENABLE_PLUGINS
927 // Register a claim-file handler.
929 static enum ld_plugin_status
930 register_claim_file(ld_plugin_claim_file_handler handler
)
932 gold_assert(parameters
->options().has_plugins());
933 parameters
->options().plugins()->set_claim_file_handler(handler
);
937 // Register an all-symbols-read handler.
939 static enum ld_plugin_status
940 register_all_symbols_read(ld_plugin_all_symbols_read_handler handler
)
942 gold_assert(parameters
->options().has_plugins());
943 parameters
->options().plugins()->set_all_symbols_read_handler(handler
);
947 // Register a cleanup handler.
949 static enum ld_plugin_status
950 register_cleanup(ld_plugin_cleanup_handler handler
)
952 gold_assert(parameters
->options().has_plugins());
953 parameters
->options().plugins()->set_cleanup_handler(handler
);
957 // Add symbols from a plugin-claimed input file.
959 static enum ld_plugin_status
960 add_symbols(void* handle
, int nsyms
, const ld_plugin_symbol
*syms
)
962 gold_assert(parameters
->options().has_plugins());
963 Pluginobj
* obj
= parameters
->options().plugins()->make_plugin_object(
964 static_cast<unsigned int>(reinterpret_cast<intptr_t>(handle
)));
967 obj
->store_incoming_symbols(nsyms
, syms
);
971 // Get the input file information with an open (possibly re-opened)
974 static enum ld_plugin_status
975 get_input_file(const void *handle
, struct ld_plugin_input_file
*file
)
977 gold_assert(parameters
->options().has_plugins());
978 unsigned int obj_index
=
979 static_cast<unsigned int>(reinterpret_cast<intptr_t>(handle
));
980 return parameters
->options().plugins()->get_input_file(obj_index
, file
);
983 // Release the input file.
985 static enum ld_plugin_status
986 release_input_file(const void *handle
)
988 gold_assert(parameters
->options().has_plugins());
989 unsigned int obj_index
=
990 static_cast<unsigned int>(reinterpret_cast<intptr_t>(handle
));
991 return parameters
->options().plugins()->release_input_file(obj_index
);
994 // Get the symbol resolution info for a plugin-claimed input file.
996 static enum ld_plugin_status
997 get_symbols(const void * handle
, int nsyms
, ld_plugin_symbol
* syms
)
999 gold_assert(parameters
->options().has_plugins());
1000 Pluginobj
* obj
= parameters
->options().plugins()->object(
1001 static_cast<unsigned int>(reinterpret_cast<intptr_t>(handle
)));
1004 return obj
->get_symbol_resolution_info(nsyms
, syms
);
1007 // Add a new (real) input file generated by a plugin.
1009 static enum ld_plugin_status
1010 add_input_file(char *pathname
)
1012 gold_assert(parameters
->options().has_plugins());
1013 return parameters
->options().plugins()->add_input_file(pathname
, false);
1016 // Add a new (real) library required by a plugin.
1018 static enum ld_plugin_status
1019 add_input_library(char *pathname
)
1021 gold_assert(parameters
->options().has_plugins());
1022 return parameters
->options().plugins()->add_input_file(pathname
, true);
1025 // Issue a diagnostic message from a plugin.
1027 static enum ld_plugin_status
1028 message(int level
, const char * format
, ...)
1031 va_start(args
, format
);
1036 parameters
->errors()->info(format
, args
);
1039 parameters
->errors()->warning(format
, args
);
1043 parameters
->errors()->error(format
, args
);
1046 parameters
->errors()->fatal(format
, args
);
1054 #endif // ENABLE_PLUGINS
1056 // Allocate a Pluginobj object of the appropriate size and endianness.
1059 make_sized_plugin_object(Input_file
* input_file
, off_t offset
, off_t filesize
)
1061 Pluginobj
* obj
= NULL
;
1063 parameters_force_valid_target();
1064 const Target
& target(parameters
->target());
1066 if (target
.get_size() == 32)
1068 if (target
.is_big_endian())
1069 #ifdef HAVE_TARGET_32_BIG
1070 obj
= new Sized_pluginobj
<32, true>(input_file
->filename(),
1071 input_file
, offset
, filesize
);
1073 gold_error(_("%s: not configured to support "
1074 "32-bit big-endian object"),
1075 input_file
->filename().c_str());
1078 #ifdef HAVE_TARGET_32_LITTLE
1079 obj
= new Sized_pluginobj
<32, false>(input_file
->filename(),
1080 input_file
, offset
, filesize
);
1082 gold_error(_("%s: not configured to support "
1083 "32-bit little-endian object"),
1084 input_file
->filename().c_str());
1087 else if (target
.get_size() == 64)
1089 if (target
.is_big_endian())
1090 #ifdef HAVE_TARGET_64_BIG
1091 obj
= new Sized_pluginobj
<64, true>(input_file
->filename(),
1092 input_file
, offset
, filesize
);
1094 gold_error(_("%s: not configured to support "
1095 "64-bit big-endian object"),
1096 input_file
->filename().c_str());
1099 #ifdef HAVE_TARGET_64_LITTLE
1100 obj
= new Sized_pluginobj
<64, false>(input_file
->filename(),
1101 input_file
, offset
, filesize
);
1103 gold_error(_("%s: not configured to support "
1104 "64-bit little-endian object"),
1105 input_file
->filename().c_str());
1109 gold_assert(obj
!= NULL
);
1113 } // End namespace gold.