// readsyms.cc -- read input file symbols for gold
-// Copyright 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+// Copyright (C) 2006-2021 Free Software Foundation, Inc.
// Written by Ian Lance Taylor <iant@google.com>.
// This file is part of gold.
workqueue->queue(new Read_symbols(input_objects, symtab, layout, dirpath,
dirindex, mapfile, input_argument,
- input_group, NULL, next_blocker));
+ input_group, NULL, NULL, next_blocker));
}
// Return whether a Read_symbols task is runnable. We can read an
// locks here.
void
-Read_symbols::locks(Task_locker*)
+Read_symbols::locks(Task_locker* tl)
{
+ if (this->member_ != NULL)
+ tl->add(this, this->next_blocker_);
}
// Run a Read_symbols task.
Read_symbols::run(Workqueue* workqueue)
{
// If we didn't queue a new task, then we need to explicitly unblock
- // the token.
- if (!this->do_read_symbols(workqueue))
+ // the token. If the object is a member of a lib group, however,
+ // the token was already added to the list of locks for the task,
+ // and it will be unblocked automatically at the end of the task.
+ if (!this->do_read_symbols(workqueue) && this->member_ == NULL)
workqueue->queue_soon(new Unblock_token(this->this_blocker_,
this->next_blocker_));
}
+// Handle a whole lib group. Other than collecting statistics, this just
+// mimics what we do for regular object files in the command line.
+
+bool
+Read_symbols::do_whole_lib_group(Workqueue* workqueue)
+{
+ const Input_file_lib* lib_group = this->input_argument_->lib();
+
+ ++Lib_group::total_lib_groups;
+
+ Task_token* this_blocker = this->this_blocker_;
+ for (Input_file_lib::const_iterator i = lib_group->begin();
+ i != lib_group->end();
+ ++i)
+ {
+ ++Lib_group::total_members;
+ ++Lib_group::total_members_loaded;
+
+ const Input_argument* arg = &*i;
+
+ Task_token* next_blocker;
+ if (i != lib_group->end() - 1)
+ {
+ next_blocker = new Task_token(true);
+ next_blocker->add_blocker();
+ }
+ else
+ next_blocker = this->next_blocker_;
+
+ workqueue->queue_soon(new Read_symbols(this->input_objects_,
+ this->symtab_, this->layout_,
+ this->dirpath_, this->dirindex_,
+ this->mapfile_, arg, NULL,
+ NULL, this_blocker, next_blocker));
+ this_blocker = next_blocker;
+ }
+
+ return true;
+}
+
+// Handle a lib group. We set Read_symbols Tasks as usual, but have them
+// just record the symbol data instead of adding the objects. We also start
+// a Add_lib_group_symbols Task which runs after we've read all the symbols.
+// In that task we process the members in a loop until we are done.
+
+bool
+Read_symbols::do_lib_group(Workqueue* workqueue)
+{
+ const Input_file_lib* lib_group = this->input_argument_->lib();
+
+ if (lib_group->options().whole_archive())
+ return this->do_whole_lib_group(workqueue);
+
+ Lib_group* lib = new Lib_group(lib_group, this);
+
+ Add_lib_group_symbols* add_lib_group_symbols =
+ new Add_lib_group_symbols(this->symtab_, this->layout_,
+ this->input_objects_,
+ lib, this->next_blocker_);
+
+
+ Task_token* next_blocker = new Task_token(true);
+ int j = 0;
+ for (Input_file_lib::const_iterator i = lib_group->begin();
+ i != lib_group->end();
+ ++i, ++j)
+ {
+ const Input_argument* arg = &*i;
+ Archive_member* m = lib->get_member(j);
+
+ next_blocker->add_blocker();
+
+ // Since this Read_symbols will not create an Add_symbols,
+ // just pass NULL as this_blocker.
+ workqueue->queue_soon(new Read_symbols(this->input_objects_,
+ this->symtab_, this->layout_,
+ this->dirpath_, this->dirindex_,
+ this->mapfile_, arg, NULL,
+ m, NULL, next_blocker));
+ }
+
+ add_lib_group_symbols->set_blocker(next_blocker, this->this_blocker_);
+ workqueue->queue_soon(add_lib_group_symbols);
+
+ return true;
+}
+
// Open the file and read the symbols. Return true if a new task was
// queued, false if that could not happen due to some error.
return true;
}
+ if (this->input_argument_->is_lib())
+ return this->do_lib_group(workqueue);
+
Input_file* input_file = new Input_file(&this->input_argument_->file());
if (!input_file->open(*this->dirpath_, this, &this->dirindex_))
return false;
this->dirpath_, this);
arch->setup();
- if (this->layout_->incremental_inputs())
- {
- const Input_argument* ia = this->input_argument_;
- this->layout_->incremental_inputs()->report_archive(ia, arch);
- }
-
// Unlock the archive so it can be used in the next task.
arch->unlock(this);
}
}
+ Object* elf_obj = NULL;
+ bool unconfigured;
+ bool* punconfigured = NULL;
+ if (is_elf)
+ {
+ // This is an ELF object.
+
+ unconfigured = false;
+ punconfigured = (input_file->will_search_for()
+ ? &unconfigured
+ : NULL);
+ elf_obj = make_elf_object(input_file->filename(),
+ input_file, 0, ehdr, read_size,
+ punconfigured);
+ }
+
if (parameters->options().has_plugins())
{
Pluginobj* obj = parameters->options().plugins()->claim_file(input_file,
- 0, filesize);
+ 0, filesize,
+ elf_obj);
if (obj != NULL)
{
+ // Delete the elf_obj, this file has been claimed.
+ if (elf_obj != NULL)
+ delete elf_obj;
+
// 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);
+ if (this->member_ != NULL)
+ {
+ this->member_->sd_ = NULL;
+ this->member_->obj_ = obj;
+ return true;
+ }
+
workqueue->queue_next(new Add_symbols(this->input_objects_,
this->symtab_,
this->layout_,
this->dirindex_,
this->mapfile_,
this->input_argument_,
- this->input_group_,
obj,
+ NULL,
NULL,
this->this_blocker_,
this->next_blocker_));
{
// This is an ELF object.
- bool unconfigured = false;
- bool* punconfigured = (input_file->will_search_for()
- ? &unconfigured
- : NULL);
- Object* obj = make_elf_object(input_file->filename(),
- input_file, 0, ehdr, read_size,
- punconfigured);
- if (obj == NULL)
+ if (elf_obj == NULL)
{
if (unconfigured)
{
}
Read_symbols_data* sd = new Read_symbols_data;
- obj->read_symbols(sd);
-
- if (this->layout_->incremental_inputs())
- {
- const Input_argument* ia = this->input_argument_;
- this->layout_->incremental_inputs()->report_object(ia, obj);
- }
+ elf_obj->read_symbols(sd);
// Opening the file locked it, so now we need to unlock it. We
// need to unlock it before queuing the Add_symbols task,
input_file->file().unlock(this);
+ if (this->member_ != NULL)
+ {
+ this->member_->sd_ = sd;
+ this->member_->obj_ = elf_obj;
+ this->member_->arg_serial_ =
+ this->input_argument_->file().arg_serial();
+ return true;
+ }
+
// We use queue_next because everything is cached for this
// task to run right away if possible.
this->dirindex_,
this->mapfile_,
this->input_argument_,
- this->input_group_,
- obj,
+ elf_obj,
+ NULL,
sd,
this->this_blocker_,
this->next_blocker_));
this->symtab_, this->layout_,
this->dirpath_, this->dirindex_,
this->mapfile_, arg, input_group,
- this_blocker, next_blocker));
+ NULL, this_blocker, next_blocker));
this_blocker = next_blocker;
}
std::string
Read_symbols::get_name() const
{
- if (!this->input_argument_->is_group())
+ if (this->input_argument_->is_group())
+ {
+ std::string ret("Read_symbols group (");
+ bool add_space = false;
+ const Input_file_group* group = this->input_argument_->group();
+ for (Input_file_group::const_iterator p = group->begin();
+ p != group->end();
+ ++p)
+ {
+ if (add_space)
+ ret += ' ';
+ ret += p->file().name();
+ add_space = true;
+ }
+ return ret + ')';
+ }
+ else if (this->input_argument_->is_lib())
+ {
+ std::string ret("Read_symbols lib (");
+ bool add_space = false;
+ const Input_file_lib* lib = this->input_argument_->lib();
+ for (Input_file_lib::const_iterator p = lib->begin();
+ p != lib->end();
+ ++p)
+ {
+ if (add_space)
+ ret += ' ';
+ ret += p->file().name();
+ add_space = true;
+ }
+ return ret + ')';
+ }
+ else
{
std::string ret("Read_symbols ");
if (this->input_argument_->file().is_lib())
ret += this->input_argument_->file().name();
return ret;
}
-
- std::string ret("Read_symbols group (");
- bool add_space = false;
- const Input_file_group* group = this->input_argument_->group();
- for (Input_file_group::const_iterator p = group->begin();
- p != group->end();
- ++p)
- {
- if (add_space)
- ret += ' ';
- ret += p->file().name();
- add_space = true;
- }
- return ret + ')';
}
// Class Add_symbols.
Add_symbols::locks(Task_locker* tl)
{
tl->add(this, this->next_blocker_);
- tl->add(this, this->object_->token());
+ Task_token* token = this->object_->token();
+ if (token != NULL)
+ tl->add(this, token);
}
// Add the symbols in the object to the symbol table.
if (!this->input_objects_->add_object(this->object_))
{
+ this->object_->discard_decompressed_sections();
+ gold_assert(this->sd_ != NULL);
+ delete this->sd_;
+ this->sd_ = NULL;
this->object_->release();
delete this->object_;
}
else
{
+ Incremental_inputs* incremental_inputs =
+ this->layout_->incremental_inputs();
+ if (incremental_inputs != NULL)
+ {
+ if (this->library_ != NULL && !this->library_->is_reported())
+ {
+ Incremental_binary* ibase = this->layout_->incremental_base();
+ gold_assert(ibase != NULL);
+ unsigned int lib_serial = this->library_->arg_serial();
+ unsigned int lib_index = this->library_->input_file_index();
+ Script_info* lib_script_info = ibase->get_script_info(lib_index);
+ incremental_inputs->report_archive_begin(this->library_,
+ lib_serial,
+ lib_script_info);
+ }
+ unsigned int arg_serial = this->input_argument_->file().arg_serial();
+ Script_info* script_info = this->input_argument_->script_info();
+ incremental_inputs->report_object(this->object_, arg_serial,
+ this->library_, script_info);
+ }
this->object_->layout(this->symtab_, this->layout_, this->sd_);
this->object_->add_symbols(this->symtab_, this->sd_, this->layout_);
+ this->object_->discard_decompressed_sections();
+ delete this->sd_;
+ this->sd_ = NULL;
this->object_->release();
}
- delete this->sd_;
- this->sd_ = NULL;
+}
+
+// Class Read_member.
+
+Read_member::~Read_member()
+{
+ if (this->this_blocker_ != NULL)
+ delete this->this_blocker_;
+ // next_blocker_ is deleted by the task associated with the next
+ // input file.
+}
+
+// Return whether a Read_member task is runnable.
+
+Task_token*
+Read_member::is_runnable()
+{
+ if (this->this_blocker_ != NULL && this->this_blocker_->is_blocked())
+ return this->this_blocker_;
+ return NULL;
+}
+
+void
+Read_member::locks(Task_locker* tl)
+{
+ tl->add(this, this->next_blocker_);
+}
+
+// Run a Read_member task.
+
+void
+Read_member::run(Workqueue*)
+{
+ // This task doesn't need to do anything for now. The Read_symbols task
+ // that is queued for the archive library will cause the archive to be
+ // processed from scratch.
+}
+
+// Class Check_script.
+
+Check_script::~Check_script()
+{
+ if (this->this_blocker_ != NULL)
+ delete this->this_blocker_;
+ // next_blocker_ is deleted by the task associated with the next
+ // input file.
+}
+
+// Return whether a Check_script task is runnable.
+
+Task_token*
+Check_script::is_runnable()
+{
+ if (this->this_blocker_ != NULL && this->this_blocker_->is_blocked())
+ return this->this_blocker_;
+ return NULL;
+}
+
+void
+Check_script::locks(Task_locker* tl)
+{
+ tl->add(this, this->next_blocker_);
+}
+
+// Run a Check_script task.
+
+void
+Check_script::run(Workqueue*)
+{
+ Incremental_inputs* incremental_inputs = this->layout_->incremental_inputs();
+ gold_assert(incremental_inputs != NULL);
+ unsigned int arg_serial = this->input_reader_->arg_serial();
+ Script_info* script_info =
+ this->ibase_->get_script_info(this->input_file_index_);
+ Timespec mtime = this->input_reader_->get_mtime();
+ incremental_inputs->report_script(script_info, arg_serial, mtime);
+}
+
+// Class Check_library.
+
+Check_library::~Check_library()
+{
+ if (this->this_blocker_ != NULL)
+ delete this->this_blocker_;
+ // next_blocker_ is deleted by the task associated with the next
+ // input file.
+}
+
+// Return whether a Check_library task is runnable.
+
+Task_token*
+Check_library::is_runnable()
+{
+ if (this->this_blocker_ != NULL && this->this_blocker_->is_blocked())
+ return this->this_blocker_;
+ return NULL;
+}
+
+void
+Check_library::locks(Task_locker* tl)
+{
+ tl->add(this, this->next_blocker_);
+}
+
+// Run a Check_library task.
+
+void
+Check_library::run(Workqueue*)
+{
+ Incremental_inputs* incremental_inputs = this->layout_->incremental_inputs();
+ gold_assert(incremental_inputs != NULL);
+ Incremental_library* lib = this->ibase_->get_library(this->input_file_index_);
+ gold_assert(lib != NULL);
+ lib->copy_unused_symbols();
+ // FIXME: Check that unused symbols remain unused.
+ if (!lib->is_reported())
+ {
+ unsigned int lib_serial = lib->arg_serial();
+ unsigned int lib_index = lib->input_file_index();
+ Script_info* script_info = this->ibase_->get_script_info(lib_index);
+ incremental_inputs->report_archive_begin(lib, lib_serial, script_info);
+ }
+ incremental_inputs->report_archive_end(lib);
+}
+
+// Class Input_group.
+
+// When we delete an Input_group we can delete the archive
+// information.
+
+Input_group::~Input_group()
+{
+ for (Input_group::const_iterator p = this->begin();
+ p != this->end();
+ ++p)
+ delete *p;
}
// Class Start_group.
}
}
- // Delete all the archives now that we no longer need them.
+ // Now that we're done with the archives, record the incremental
+ // layout information.
for (Input_group::const_iterator p = this->input_group_->begin();
p != this->input_group_->end();
++p)
- delete *p;
- delete this->input_group_;
+ {
+ // For an incremental link, finish recording the layout information.
+ Incremental_inputs* incremental_inputs =
+ this->layout_->incremental_inputs();
+ if (incremental_inputs != NULL)
+ incremental_inputs->report_archive_end(*p);
+ }
+
+ if (parameters->options().has_plugins())
+ parameters->options().plugins()->save_input_group(this->input_group_);
+ else
+ delete this->input_group_;
}
// Class Read_script
projects / thirdparty / binutils-gdb.git / blobdiff