1 // fileread.cc -- read files for gold
3 // Copyright 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
4 // Written by Ian Lance Taylor <iant@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.
37 #include "filenames.h"
40 #include "parameters.h"
42 #include "dirsearch.h"
45 #include "descriptors.h"
46 #include "gold-threads.h"
50 struct iovec
{ void* iov_base
; size_t iov_len
; };
52 readv(int, const iovec
*, int)
63 // A lock for the File_read static variables.
64 static Lock
* file_counts_lock
= NULL
;
65 static Initialize_lock
file_counts_initialize_lock(&file_counts_lock
);
67 // The File_read static variables.
68 unsigned long long File_read::total_mapped_bytes
;
69 unsigned long long File_read::current_mapped_bytes
;
70 unsigned long long File_read::maximum_mapped_bytes
;
72 // Class File_read::View.
74 File_read::View::~View()
76 gold_assert(!this->is_locked());
77 switch (this->data_ownership_
)
79 case DATA_ALLOCATED_ARRAY
:
83 if (::munmap(const_cast<unsigned char*>(this->data_
), this->size_
) != 0)
84 gold_warning(_("munmap failed: %s"), strerror(errno
));
85 if (!parameters
->options_valid() || parameters
->options().stats())
87 file_counts_initialize_lock
.initialize();
88 Hold_optional_lock
hl(file_counts_lock
);
89 File_read::current_mapped_bytes
-= this->size_
;
100 File_read::View::lock()
106 File_read::View::unlock()
108 gold_assert(this->lock_count_
> 0);
113 File_read::View::is_locked()
115 return this->lock_count_
> 0;
120 File_read::~File_read()
122 gold_assert(this->token_
.is_writable());
123 if (this->is_descriptor_opened_
)
125 release_descriptor(this->descriptor_
, true);
126 this->descriptor_
= -1;
127 this->is_descriptor_opened_
= false;
130 this->clear_views(CLEAR_VIEWS_ALL
);
136 File_read::open(const Task
* task
, const std::string
& name
)
138 gold_assert(this->token_
.is_writable()
139 && this->descriptor_
< 0
140 && !this->is_descriptor_opened_
141 && this->name_
.empty());
144 this->descriptor_
= open_descriptor(-1, this->name_
.c_str(),
147 if (this->descriptor_
>= 0)
149 this->is_descriptor_opened_
= true;
151 if (::fstat(this->descriptor_
, &s
) < 0)
152 gold_error(_("%s: fstat failed: %s"),
153 this->name_
.c_str(), strerror(errno
));
154 this->size_
= s
.st_size
;
155 gold_debug(DEBUG_FILES
, "Attempt to open %s succeeded",
156 this->name_
.c_str());
157 this->token_
.add_writer(task
);
160 return this->descriptor_
>= 0;
163 // Open the file with the contents in memory.
166 File_read::open(const Task
* task
, const std::string
& name
,
167 const unsigned char* contents
, off_t size
)
169 gold_assert(this->token_
.is_writable()
170 && this->descriptor_
< 0
171 && !this->is_descriptor_opened_
172 && this->name_
.empty());
174 this->whole_file_view_
= new View(0, size
, contents
, 0, false,
175 View::DATA_NOT_OWNED
);
176 this->add_view(this->whole_file_view_
);
178 this->token_
.add_writer(task
);
182 // Reopen a descriptor if necessary.
185 File_read::reopen_descriptor()
187 if (!this->is_descriptor_opened_
)
189 this->descriptor_
= open_descriptor(this->descriptor_
,
192 if (this->descriptor_
< 0)
193 gold_fatal(_("could not reopen file %s"), this->name_
.c_str());
194 this->is_descriptor_opened_
= true;
198 // Release the file. This is called when we are done with the file in
204 gold_assert(this->is_locked());
206 if (!parameters
->options_valid() || parameters
->options().stats())
208 file_counts_initialize_lock
.initialize();
209 Hold_optional_lock
hl(file_counts_lock
);
210 File_read::total_mapped_bytes
+= this->mapped_bytes_
;
211 File_read::current_mapped_bytes
+= this->mapped_bytes_
;
212 if (File_read::current_mapped_bytes
> File_read::maximum_mapped_bytes
)
213 File_read::maximum_mapped_bytes
= File_read::current_mapped_bytes
;
216 this->mapped_bytes_
= 0;
218 // Only clear views if there is only one attached object. Otherwise
219 // we waste time trying to clear cached archive views. Similarly
220 // for releasing the descriptor.
221 if (this->object_count_
<= 1)
223 this->clear_views(CLEAR_VIEWS_NORMAL
);
224 if (this->is_descriptor_opened_
)
226 release_descriptor(this->descriptor_
, false);
227 this->is_descriptor_opened_
= false;
231 this->released_
= true;
237 File_read::lock(const Task
* task
)
239 gold_assert(this->released_
);
240 this->token_
.add_writer(task
);
241 this->released_
= false;
247 File_read::unlock(const Task
* task
)
250 this->token_
.remove_writer(task
);
253 // Return whether the file is locked.
256 File_read::is_locked() const
258 if (!this->token_
.is_writable())
260 // The file is not locked, so it should have been released.
261 gold_assert(this->released_
);
265 // See if we have a view which covers the file starting at START for
266 // SIZE bytes. Return a pointer to the View if found, NULL if not.
267 // If BYTESHIFT is not -1U, the returned View must have the specified
268 // byte shift; otherwise, it may have any byte shift. If VSHIFTED is
269 // not NULL, this sets *VSHIFTED to a view which would have worked if
270 // not for the requested BYTESHIFT.
272 inline File_read::View
*
273 File_read::find_view(off_t start
, section_size_type size
,
274 unsigned int byteshift
, File_read::View
** vshifted
) const
276 if (vshifted
!= NULL
)
279 // If we have the whole file mmapped, and the alignment is right,
281 if (this->whole_file_view_
)
282 if (byteshift
== -1U || byteshift
== 0)
283 return this->whole_file_view_
;
285 off_t page
= File_read::page_offset(start
);
287 unsigned int bszero
= 0;
288 Views::const_iterator p
= this->views_
.upper_bound(std::make_pair(page
- 1,
291 while (p
!= this->views_
.end() && p
->first
.first
<= page
)
293 if (p
->second
->start() <= start
294 && (p
->second
->start() + static_cast<off_t
>(p
->second
->size())
295 >= start
+ static_cast<off_t
>(size
)))
297 if (byteshift
== -1U || byteshift
== p
->second
->byteshift())
299 p
->second
->set_accessed();
303 if (vshifted
!= NULL
&& *vshifted
== NULL
)
304 *vshifted
= p
->second
;
313 // Read SIZE bytes from the file starting at offset START. Read into
317 File_read::do_read(off_t start
, section_size_type size
, void* p
)
320 if (this->whole_file_view_
!= NULL
)
322 bytes
= this->size_
- start
;
323 if (static_cast<section_size_type
>(bytes
) >= size
)
325 memcpy(p
, this->whole_file_view_
->data() + start
, size
);
331 this->reopen_descriptor();
332 bytes
= ::pread(this->descriptor_
, p
, size
, start
);
333 if (static_cast<section_size_type
>(bytes
) == size
)
338 gold_fatal(_("%s: pread failed: %s"),
339 this->filename().c_str(), strerror(errno
));
344 gold_fatal(_("%s: file too short: read only %lld of %lld bytes at %lld"),
345 this->filename().c_str(),
346 static_cast<long long>(bytes
),
347 static_cast<long long>(size
),
348 static_cast<long long>(start
));
351 // Read data from the file.
354 File_read::read(off_t start
, section_size_type size
, void* p
)
356 const File_read::View
* pv
= this->find_view(start
, size
, -1U, NULL
);
359 memcpy(p
, pv
->data() + (start
- pv
->start() + pv
->byteshift()), size
);
363 this->do_read(start
, size
, p
);
366 // Add a new view. There may already be an existing view at this
367 // offset. If there is, the new view will be larger, and should
368 // replace the old view.
371 File_read::add_view(File_read::View
* v
)
373 std::pair
<Views::iterator
, bool> ins
=
374 this->views_
.insert(std::make_pair(std::make_pair(v
->start(),
380 // There was an existing view at this offset. It must not be large
381 // enough. We can't delete it here, since something might be using
382 // it; we put it on a list to be deleted when the file is unlocked.
383 File_read::View
* vold
= ins
.first
->second
;
384 gold_assert(vold
->size() < v
->size());
385 if (vold
->should_cache())
390 this->saved_views_
.push_back(vold
);
392 ins
.first
->second
= v
;
395 // Make a new view with a specified byteshift, reading the data from
399 File_read::make_view(off_t start
, section_size_type size
,
400 unsigned int byteshift
, bool cache
)
402 gold_assert(size
> 0);
404 // Check that start and end of the view are within the file.
405 if (start
> this->size_
406 || (static_cast<unsigned long long>(size
)
407 > static_cast<unsigned long long>(this->size_
- start
)))
408 gold_fatal(_("%s: attempt to map %lld bytes at offset %lld exceeds "
409 "size of file; the file may be corrupt"),
410 this->filename().c_str(),
411 static_cast<long long>(size
),
412 static_cast<long long>(start
));
414 off_t poff
= File_read::page_offset(start
);
416 section_size_type psize
= File_read::pages(size
+ (start
- poff
));
418 if (poff
+ static_cast<off_t
>(psize
) >= this->size_
)
420 psize
= this->size_
- poff
;
421 gold_assert(psize
>= size
);
427 unsigned char* p
= new unsigned char[psize
+ byteshift
];
428 memset(p
, 0, byteshift
);
429 this->do_read(poff
, psize
, p
+ byteshift
);
430 v
= new File_read::View(poff
, psize
, p
, byteshift
, cache
,
431 View::DATA_ALLOCATED_ARRAY
);
435 this->reopen_descriptor();
436 void* p
= ::mmap(NULL
, psize
, PROT_READ
, MAP_PRIVATE
,
437 this->descriptor_
, poff
);
439 gold_fatal(_("%s: mmap offset %lld size %lld failed: %s"),
440 this->filename().c_str(),
441 static_cast<long long>(poff
),
442 static_cast<long long>(psize
),
445 this->mapped_bytes_
+= psize
;
447 const unsigned char* pbytes
= static_cast<const unsigned char*>(p
);
448 v
= new File_read::View(poff
, psize
, pbytes
, 0, cache
,
457 // Find a View or make a new one, shifted as required by the file
458 // offset OFFSET and ALIGNED.
461 File_read::find_or_make_view(off_t offset
, off_t start
,
462 section_size_type size
, bool aligned
, bool cache
)
464 unsigned int byteshift
;
469 unsigned int target_size
= (!parameters
->target_valid()
471 : parameters
->target().get_size());
472 byteshift
= offset
& ((target_size
/ 8) - 1);
474 // Set BYTESHIFT to the number of dummy bytes which must be
475 // inserted before the data in order for this data to be
478 byteshift
= (target_size
/ 8) - byteshift
;
481 // If --map-whole-files is set, make sure we have a
482 // whole file view. Options may not yet be ready, e.g.,
483 // when reading a version script. We then default to
484 // --no-map-whole-files.
485 if (this->whole_file_view_
== NULL
486 && parameters
->options_valid()
487 && parameters
->options().map_whole_files())
488 this->whole_file_view_
= this->make_view(0, this->size_
, 0, cache
);
490 // Try to find a View with the required BYTESHIFT.
491 File_read::View
* vshifted
;
492 File_read::View
* v
= this->find_view(offset
+ start
, size
,
493 aligned
? byteshift
: -1U,
502 // If VSHIFTED is not NULL, then it has the data we need, but with
503 // the wrong byteshift.
507 gold_assert(aligned
);
509 unsigned char* pbytes
= new unsigned char[v
->size() + byteshift
];
510 memset(pbytes
, 0, byteshift
);
511 memcpy(pbytes
+ byteshift
, v
->data() + v
->byteshift(), v
->size());
513 File_read::View
* shifted_view
=
514 new File_read::View(v
->start(), v
->size(), pbytes
, byteshift
,
515 cache
, View::DATA_ALLOCATED_ARRAY
);
517 this->add_view(shifted_view
);
521 // Make a new view. If we don't need an aligned view, use a
522 // byteshift of 0, so that we can use mmap.
523 return this->make_view(offset
+ start
, size
,
524 aligned
? byteshift
: 0,
528 // Get a view into the file.
531 File_read::get_view(off_t offset
, off_t start
, section_size_type size
,
532 bool aligned
, bool cache
)
534 File_read::View
* pv
= this->find_or_make_view(offset
, start
, size
,
536 return pv
->data() + (offset
+ start
- pv
->start() + pv
->byteshift());
540 File_read::get_lasting_view(off_t offset
, off_t start
, section_size_type size
,
541 bool aligned
, bool cache
)
543 File_read::View
* pv
= this->find_or_make_view(offset
, start
, size
,
546 return new File_view(*this, pv
,
548 + (offset
+ start
- pv
->start() + pv
->byteshift())));
551 // Use readv to read COUNT entries from RM starting at START. BASE
552 // must be added to all file offsets in RM.
555 File_read::do_readv(off_t base
, const Read_multiple
& rm
, size_t start
,
558 unsigned char discard
[File_read::page_size
];
559 iovec iov
[File_read::max_readv_entries
* 2];
560 size_t iov_index
= 0;
562 off_t first_offset
= rm
[start
].file_offset
;
563 off_t last_offset
= first_offset
;
565 for (size_t i
= 0; i
< count
; ++i
)
567 const Read_multiple_entry
& i_entry(rm
[start
+ i
]);
569 if (i_entry
.file_offset
> last_offset
)
571 size_t skip
= i_entry
.file_offset
- last_offset
;
572 gold_assert(skip
<= sizeof discard
);
574 iov
[iov_index
].iov_base
= discard
;
575 iov
[iov_index
].iov_len
= skip
;
581 iov
[iov_index
].iov_base
= i_entry
.buffer
;
582 iov
[iov_index
].iov_len
= i_entry
.size
;
585 want
+= i_entry
.size
;
587 last_offset
= i_entry
.file_offset
+ i_entry
.size
;
590 this->reopen_descriptor();
592 gold_assert(iov_index
< sizeof iov
/ sizeof iov
[0]);
594 if (::lseek(this->descriptor_
, base
+ first_offset
, SEEK_SET
) < 0)
595 gold_fatal(_("%s: lseek failed: %s"),
596 this->filename().c_str(), strerror(errno
));
598 ssize_t got
= ::readv(this->descriptor_
, iov
, iov_index
);
601 gold_fatal(_("%s: readv failed: %s"),
602 this->filename().c_str(), strerror(errno
));
604 gold_fatal(_("%s: file too short: read only %zd of %zd bytes at %lld"),
605 this->filename().c_str(),
606 got
, want
, static_cast<long long>(base
+ first_offset
));
611 #if !defined(HAVE_READV)
612 #define GOLD_IOV_MAX 1
613 #elif defined(IOV_MAX)
614 #define GOLD_IOV_MAX IOV_MAX
616 #define GOLD_IOV_MAX (File_read::max_readv_entries * 2)
619 // Read several pieces of data from the file.
622 File_read::read_multiple(off_t base
, const Read_multiple
& rm
)
624 static size_t iov_max
= GOLD_IOV_MAX
;
625 size_t count
= rm
.size();
629 // Find up to MAX_READV_ENTRIES consecutive entries which are
630 // less than one page apart.
631 const Read_multiple_entry
& i_entry(rm
[i
]);
632 off_t i_off
= i_entry
.file_offset
;
633 off_t end_off
= i_off
+ i_entry
.size
;
635 for (j
= i
+ 1; j
< count
; ++j
)
637 if (j
- i
>= File_read::max_readv_entries
|| j
- i
>= iov_max
/ 2)
639 const Read_multiple_entry
& j_entry(rm
[j
]);
640 off_t j_off
= j_entry
.file_offset
;
641 gold_assert(j_off
>= end_off
);
642 off_t j_end_off
= j_off
+ j_entry
.size
;
643 if (j_end_off
- end_off
>= File_read::page_size
)
649 this->read(base
+ i_off
, i_entry
.size
, i_entry
.buffer
);
652 File_read::View
* view
= this->find_view(base
+ i_off
,
656 this->do_readv(base
, rm
, i
, j
- i
);
659 const unsigned char* v
= (view
->data()
660 + (base
+ i_off
- view
->start()
661 + view
->byteshift()));
662 for (size_t k
= i
; k
< j
; ++k
)
664 const Read_multiple_entry
& k_entry(rm
[k
]);
665 gold_assert((convert_to_section_size_type(k_entry
.file_offset
668 <= convert_to_section_size_type(end_off
670 memcpy(k_entry
.buffer
,
671 v
+ (k_entry
.file_offset
- i_off
),
681 // Mark all views as no longer cached.
684 File_read::clear_view_cache_marks()
686 // Just ignore this if there are multiple objects associated with
687 // the file. Otherwise we will wind up uncaching and freeing some
688 // views for other objects.
689 if (this->object_count_
> 1)
692 for (Views::iterator p
= this->views_
.begin();
693 p
!= this->views_
.end();
695 p
->second
->clear_cache();
696 for (Saved_views::iterator p
= this->saved_views_
.begin();
697 p
!= this->saved_views_
.end();
702 // Remove all the file views. For a file which has multiple
703 // associated objects (i.e., an archive), we keep accessed views
704 // around until next time, in the hopes that they will be useful for
708 File_read::clear_views(Clear_views_mode mode
)
710 bool keep_files_mapped
= (parameters
->options_valid()
711 && parameters
->options().keep_files_mapped());
712 Views::iterator p
= this->views_
.begin();
713 while (p
!= this->views_
.end())
716 if (p
->second
->is_locked() || p
->second
->is_permanent_view())
717 should_delete
= false;
718 else if (mode
== CLEAR_VIEWS_ALL
)
719 should_delete
= true;
720 else if ((p
->second
->should_cache()
721 || p
->second
== this->whole_file_view_
)
722 && keep_files_mapped
)
723 should_delete
= false;
724 else if (this->object_count_
> 1
725 && p
->second
->accessed()
726 && mode
!= CLEAR_VIEWS_ARCHIVE
)
727 should_delete
= false;
729 should_delete
= true;
733 if (p
->second
== this->whole_file_view_
)
734 this->whole_file_view_
= NULL
;
737 // map::erase invalidates only the iterator to the deleted
739 Views::iterator pe
= p
;
741 this->views_
.erase(pe
);
745 p
->second
->clear_accessed();
750 Saved_views::iterator q
= this->saved_views_
.begin();
751 while (q
!= this->saved_views_
.end())
753 if (!(*q
)->is_locked())
756 q
= this->saved_views_
.erase(q
);
760 gold_assert(mode
!= CLEAR_VIEWS_ALL
);
766 // Print statistical information to stderr. This is used for --stats.
769 File_read::print_stats()
771 fprintf(stderr
, _("%s: total bytes mapped for read: %llu\n"),
772 program_name
, File_read::total_mapped_bytes
);
773 fprintf(stderr
, _("%s: maximum bytes mapped for read at one time: %llu\n"),
774 program_name
, File_read::maximum_mapped_bytes
);
779 File_view::~File_view()
781 gold_assert(this->file_
.is_locked());
782 this->view_
->unlock();
787 // Create a file for testing.
789 Input_file::Input_file(const Task
* task
, const char* name
,
790 const unsigned char* contents
, off_t size
)
793 this->input_argument_
=
794 new Input_file_argument(name
, Input_file_argument::INPUT_FILE_TYPE_FILE
,
795 "", false, Position_dependent_options());
796 bool ok
= this->file_
.open(task
, name
, contents
, size
);
800 // Return the position dependent options in force for this file.
802 const Position_dependent_options
&
803 Input_file::options() const
805 return this->input_argument_
->options();
808 // Return the name given by the user. For -lc this will return "c".
811 Input_file::name() const
813 return this->input_argument_
->name();
816 // Return whether this file is in a system directory.
819 Input_file::is_in_system_directory() const
821 if (this->is_in_sysroot())
823 return parameters
->options().is_in_system_directory(this->filename());
826 // Return whether we are only reading symbols.
829 Input_file::just_symbols() const
831 return this->input_argument_
->just_symbols();
834 // Return whether this is a file that we will search for in the list
838 Input_file::will_search_for() const
840 return (!IS_ABSOLUTE_PATH(this->input_argument_
->name())
841 && (this->input_argument_
->is_lib()
842 || this->input_argument_
->is_searched_file()
843 || this->input_argument_
->extra_search_path() != NULL
));
846 // Return the file last modification time. Calls gold_fatal if the stat
847 // system call failed.
850 File_read::get_mtime()
852 struct stat file_stat
;
853 this->reopen_descriptor();
855 if (fstat(this->descriptor_
, &file_stat
) < 0)
856 gold_fatal(_("%s: stat failed: %s"), this->name_
.c_str(),
858 #ifdef HAVE_STAT_ST_MTIM
859 return Timespec(file_stat
.st_mtim
.tv_sec
, file_stat
.st_mtim
.tv_nsec
);
861 return Timespec(file_stat
.st_mtime
, 0);
865 // Try to find a file in the extra search dirs. Returns true on success.
868 Input_file::try_extra_search_path(int* pindex
,
869 const Input_file_argument
* input_argument
,
870 std::string filename
, std::string
* found_name
,
873 if (input_argument
->extra_search_path() == NULL
)
876 std::string name
= input_argument
->extra_search_path();
877 if (!IS_DIR_SEPARATOR(name
[name
.length() - 1]))
881 struct stat dummy_stat
;
882 if (*pindex
> 0 || ::stat(name
.c_str(), &dummy_stat
) < 0)
885 *found_name
= filename
;
890 // Find the actual file.
891 // If the filename is not absolute, we assume it is in the current
892 // directory *except* when:
893 // A) input_argument_->is_lib() is true;
894 // B) input_argument_->is_searched_file() is true; or
895 // C) input_argument_->extra_search_path() is not empty.
896 // In each, we look in extra_search_path + library_path to find
897 // the file location, rather than the current directory.
900 Input_file::find_file(const Dirsearch
& dirpath
, int* pindex
,
901 const Input_file_argument
* input_argument
,
903 std::string
* found_name
, std::string
* namep
)
907 // Case 1: name is an absolute file, just try to open it
908 // Case 2: name is relative but is_lib is false, is_searched_file is false,
909 // and extra_search_path is empty
910 if (IS_ABSOLUTE_PATH(input_argument
->name())
911 || (!input_argument
->is_lib()
912 && !input_argument
->is_searched_file()
913 && input_argument
->extra_search_path() == NULL
))
915 name
= input_argument
->name();
920 // Case 3: is_lib is true or is_searched_file is true
921 else if (input_argument
->is_lib()
922 || input_argument
->is_searched_file())
925 if (input_argument
->is_lib())
928 n1
+= input_argument
->name();
929 if (parameters
->options().is_static()
930 || !input_argument
->options().Bdynamic())
939 n1
= input_argument
->name();
941 if (Input_file::try_extra_search_path(pindex
, input_argument
, n1
,
945 if (!n2
.empty() && Input_file::try_extra_search_path(pindex
,
950 // It is not in the extra_search_path.
951 name
= dirpath
.find(n1
, n2
, is_in_sysroot
, pindex
);
954 gold_error(_("cannot find %s%s"),
955 input_argument
->is_lib() ? "-l" : "",
956 input_argument
->name());
959 if (n2
.empty() || name
[name
.length() - 1] == 'o')
966 // Case 4: extra_search_path is not empty
969 gold_assert(input_argument
->extra_search_path() != NULL
);
971 if (try_extra_search_path(pindex
, input_argument
, input_argument
->name(),
975 // extra_search_path failed, so check the normal search-path.
979 name
= dirpath
.find(input_argument
->name(), "",
980 is_in_sysroot
, &index
);
983 gold_error(_("cannot find %s"),
984 input_argument
->name());
987 *found_name
= input_argument
->name();
997 Input_file::open(const Dirsearch
& dirpath
, const Task
* task
, int* pindex
)
1000 if (!Input_file::find_file(dirpath
, pindex
, this->input_argument_
,
1001 &this->is_in_sysroot_
, &this->found_name_
, &name
))
1004 // Now that we've figured out where the file lives, try to open it.
1006 General_options::Object_format format
=
1007 this->input_argument_
->options().format_enum();
1009 if (format
== General_options::OBJECT_FORMAT_ELF
)
1011 ok
= this->file_
.open(task
, name
);
1012 this->format_
= FORMAT_ELF
;
1016 gold_assert(format
== General_options::OBJECT_FORMAT_BINARY
);
1017 ok
= this->open_binary(task
, name
);
1018 this->format_
= FORMAT_BINARY
;
1023 gold_error(_("cannot open %s: %s"),
1024 name
.c_str(), strerror(errno
));
1025 this->format_
= FORMAT_NONE
;
1032 // Open a file for --format binary.
1035 Input_file::open_binary(const Task
* task
, const std::string
& name
)
1037 // In order to open a binary file, we need machine code, size, and
1038 // endianness. We may not have a valid target at this point, in
1039 // which case we use the default target.
1040 parameters_force_valid_target();
1041 const Target
& target(parameters
->target());
1043 Binary_to_elf
binary_to_elf(target
.machine_code(),
1045 target
.is_big_endian(),
1047 if (!binary_to_elf
.convert(task
))
1049 return this->file_
.open(task
, name
, binary_to_elf
.converted_data_leak(),
1050 binary_to_elf
.converted_size());
1053 } // End namespace gold.