// readsyms.cc -- read input file symbols for gold
-// Copyright 2006, 2007 Free Software Foundation, Inc.
+// Copyright 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
// Written by Ian Lance Taylor <iant@google.com>.
// This file is part of gold.
#include "archive.h"
#include "script.h"
#include "readsyms.h"
+#include "plugin.h"
namespace gold
{
return false;
}
- unsigned char ehdr_buf[elfcpp::Elf_sizes<64>::ehdr_size];
-
int read_size = elfcpp::Elf_sizes<64>::ehdr_size;
if (filesize < read_size)
read_size = filesize;
- input_file->file().read(0, read_size, ehdr_buf);
+ const unsigned char* ehdr = input_file->file().get_view(0, 0, read_size,
+ true, false);
+
+ if (read_size >= Archive::sarmag)
+ {
+ bool is_thin_archive
+ = memcmp(ehdr, Archive::armagt, Archive::sarmag) == 0;
+ if (is_thin_archive
+ || memcmp(ehdr, Archive::armag, Archive::sarmag) == 0)
+ {
+ // This is an archive.
+ Archive* arch = new Archive(this->input_argument_->file().name(),
+ input_file, is_thin_archive,
+ this->dirpath_, this);
+ arch->setup(this->input_objects_);
+
+ // Unlock the archive so it can be used in the next task.
+ arch->unlock(this);
+
+ workqueue->queue_next(new Add_archive_symbols(this->symtab_,
+ this->layout_,
+ this->input_objects_,
+ this->mapfile_,
+ arch,
+ this->input_group_,
+ this->this_blocker_,
+ this->next_blocker_));
+ return true;
+ }
+ }
+
+ if (parameters->options().has_plugins())
+ {
+ Pluginobj* obj = parameters->options().plugins()->claim_file(input_file,
+ 0, filesize);
+ if (obj != NULL)
+ {
+ // The input file was claimed by a plugin, and its symbols
+ // have been provided by the plugin.
+
+ // We are done with the file at this point, so unlock it.
+ obj->unlock(this);
+
+ workqueue->queue_next(new Add_plugin_symbols(this->symtab_,
+ this->layout_,
+ obj,
+ this->this_blocker_,
+ this->next_blocker_));
+ return true;
+ }
+ }
if (read_size >= 4)
{
elfcpp::ELFMAG0, elfcpp::ELFMAG1,
elfcpp::ELFMAG2, elfcpp::ELFMAG3
};
- if (memcmp(ehdr_buf, elfmagic, 4) == 0)
+ if (memcmp(ehdr, elfmagic, 4) == 0)
{
// This is an ELF object.
Object* obj = make_elf_object(input_file->filename(),
- input_file, 0, ehdr_buf, read_size);
+ input_file, 0, ehdr, read_size);
if (obj == NULL)
return false;
}
}
- if (read_size >= Archive::sarmag)
- {
- if (memcmp(ehdr_buf, Archive::armag, Archive::sarmag) == 0)
- {
- // This is an archive.
- Archive* arch = new Archive(this->input_argument_->file().name(),
- input_file);
- arch->setup(this);
-
- workqueue->queue_next(new Add_archive_symbols(this->symtab_,
- this->layout_,
- this->input_objects_,
- arch,
- this->input_group_,
- this->this_blocker_,
- this->next_blocker_));
- return true;
- }
- }
-
// Queue up a task to try to parse this file as a script. We use a
// separate task so that the script will be read in order with other
// objects named on the command line. Also so that we don't try to
this->layout_,
this->dirpath_,
this->input_objects_,
+ this->mapfile_,
this->input_group_,
this->input_argument_,
input_file,
workqueue->queue_soon(new Read_symbols(this->options_,
this->input_objects_,
this->symtab_, this->layout_,
- this->dirpath_, arg, input_group,
+ this->dirpath_, this->mapfile_,
+ arg, input_group,
this_blocker, next_blocker));
this_blocker = next_blocker;
}
workqueue->queue_soon(new Finish_group(this->input_objects_,
this->symtab_,
this->layout_,
+ this->mapfile_,
input_group,
saw_undefined,
this_blocker,
Task_lock_obj<Archive> tl(this, *p);
(*p)->add_symbols(this->symtab_, this->layout_,
- this->input_objects_);
+ this->input_objects_, this->mapfile_);
}
}
bool used_next_blocker;
if (!read_input_script(workqueue, this->options_, this->symtab_,
this->layout_, this->dirpath_, this->input_objects_,
- this->input_group_, this->input_argument_,
- this->input_file_, this->next_blocker_,
- &used_next_blocker))
+ this->mapfile_, this->input_group_,
+ this->input_argument_, this->input_file_,
+ this->next_blocker_, &used_next_blocker))
{
// Here we have to handle any other input file types we need.
gold_error(_("%s: not an object or archive"),