-// ld.c -- linker main function
+// gold.cc -- main linker functions
+
+// Copyright 2006, 2007 Free Software Foundation, Inc.
+// Written by Ian Lance Taylor <iant@google.com>.
+
+// This file is part of gold.
+
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 3 of the License, or
+// (at your option) any later version.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+// MA 02110-1301, USA.
#include "gold.h"
#include "dirsearch.h"
#include "readsyms.h"
#include "symtab.h"
+#include "common.h"
#include "object.h"
#include "layout.h"
#include "reloc.h"
+#include "defstd.h"
namespace gold
{
gold_exit(false);
}
+// Handle an unreachable case.
+
void
-gold_unreachable()
+do_gold_unreachable(const char* filename, int lineno, const char* function)
{
- abort();
+ fprintf(stderr, "%s: internal error in %s, at %s:%d\n",
+ program_name, function, filename, lineno);
+ gold_exit(false);
}
// This class arranges to run the functions done in the middle of the
void
queue_initial_tasks(const General_options& options,
const Dirsearch& search_path,
- const Input_argument_list& inputs,
+ const Command_line& cmdline,
Workqueue* workqueue, Input_objects* input_objects,
Symbol_table* symtab, Layout* layout)
{
- if (inputs.empty())
+ if (cmdline.begin() == cmdline.end())
gold_fatal(_("no input files"), false);
// Read the input files. We have to add the symbols to the symbol
// each input file. We associate the blocker with the following
// input file, to give us a convenient place to delete it.
Task_token* this_blocker = NULL;
- for (Input_argument_list::const_iterator p = inputs.begin();
- p != inputs.end();
+ for (Command_line::const_iterator p = cmdline.begin();
+ p != cmdline.end();
++p)
{
Task_token* next_blocker = new Task_token();
next_blocker->add_blocker();
workqueue->queue(new Read_symbols(options, input_objects, symtab, layout,
- search_path, *p, this_blocker,
+ search_path, &*p, NULL, this_blocker,
next_blocker));
this_blocker = next_blocker;
}
Layout* layout,
Workqueue* workqueue)
{
+ // Define some sections and symbols needed for a dynamic link. This
+ // handles some cases we want to see before we read the relocs.
+ layout->create_initial_dynamic_sections(input_objects, symtab);
+
+ // Predefine standard symbols. This should be fast, so we don't
+ // bother to create a task for it.
+ define_standard_symbols(symtab, layout, input_objects->target());
+
+ // Define __start and __stop symbols for output sections where
+ // appropriate.
+ layout->define_section_symbols(symtab, input_objects->target());
+
// Read the relocations of the input files. We do this to find
// which symbols are used by relocations which require a GOT and/or
// a PLT entry, or a COPY reloc. When we implement garbage
// of references made to the symbols.
Task_token* blocker = new Task_token();
Task_token* symtab_lock = new Task_token();
- for (Input_objects::Object_list::const_iterator p = input_objects->begin();
- p != input_objects->end();
+ for (Input_objects::Relobj_iterator p = input_objects->relobj_begin();
+ p != input_objects->relobj_end();
++p)
{
// We can read and process the relocations in any order. But we
// relocations. That task will in turn queue a task to wait
// until it can write to the symbol table.
blocker->add_blocker();
- workqueue->queue(new Read_relocs(options, symtab, *p, symtab_lock,
- blocker));
+ workqueue->queue(new Read_relocs(options, symtab, layout, *p,
+ symtab_lock, blocker));
}
// Allocate common symbols. This requires write access to the
// symbol table, but is independent of the relocation processing.
- // blocker->add_blocker();
- // workqueue->queue(new Allocate_commons_task(options, symtab, layout,
- // symtab_lock, blocker));
+ blocker->add_blocker();
+ workqueue->queue(new Allocate_commons_task(options, symtab, layout,
+ symtab_lock, blocker));
// When all those tasks are complete, we can start laying out the
// output file.
// Queue a task for each input object to relocate the sections and
// write out the local symbols.
- for (Input_objects::Object_list::const_iterator p = input_objects->begin();
- p != input_objects->end();
+ for (Input_objects::Relobj_iterator p = input_objects->relobj_begin();
+ p != input_objects->relobj_end();
++p)
{
final_blocker->add_blocker();
// Queue a task to write out the symbol table.
final_blocker->add_blocker();
- workqueue->queue(new Write_symbols_task(symtab, input_objects->target(),
- layout->sympool(), of,
+ workqueue->queue(new Write_symbols_task(symtab,
+ input_objects->target(),
+ layout->sympool(),
+ layout->dynpool(),
+ of,
final_blocker));
// Queue a task to write out everything else.
final_blocker->add_blocker();
- workqueue->queue(new Write_data_task(layout, of, final_blocker));
+ workqueue->queue(new Write_data_task(layout, symtab, of, final_blocker));
// Queue a task to close the output file. This will be blocked by
// FINAL_BLOCKER.
}
} // End namespace gold.
-
-using namespace gold;
-
-int
-main(int argc, char** argv)
-{
-#if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
- setlocale (LC_MESSAGES, "");
-#endif
-#if defined (HAVE_SETLOCALE)
- setlocale (LC_CTYPE, "");
-#endif
- bindtextdomain (PACKAGE, LOCALEDIR);
- textdomain (PACKAGE);
-
- gold::program_name = argv[0];
-
- // Handle the command line options.
- gold::Command_line command_line;
- command_line.process(argc - 1, argv + 1);
-
- // The work queue.
- gold::Workqueue workqueue(command_line.options());
-
- // The list of input objects.
- Input_objects input_objects;
-
- // The symbol table.
- Symbol_table symtab;
-
- // The layout object.
- Layout layout(command_line.options());
-
- // Get the search path from the -L options.
- Dirsearch search_path;
- search_path.add(&workqueue, command_line.options().search_path());
-
- // Queue up the first set of tasks.
- queue_initial_tasks(command_line.options(), search_path,
- command_line.inputs(), &workqueue, &input_objects,
- &symtab, &layout);
-
- // Run the main task processing loop.
- workqueue.process();
-
- gold::gold_exit(true);
-}
projects / deliverable / binutils-gdb.git / blobdiff