{
// Read_relocs for all the objects must be done and processed to find
// unused sections before any scanning of the relocs can take place.
- Task_token* blocker = new Task_token(true);
- Task_token* symtab_lock = new Task_token(false);
+ Task_token* this_blocker = NULL;
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.
- blocker->add_blocker();
- workqueue->queue(new Read_relocs(symtab, layout, *p, symtab_lock,
- blocker));
+ Task_token* next_blocker = new Task_token(true);
+ next_blocker->add_blocker();
+ workqueue->queue(new Read_relocs(symtab, layout, *p, this_blocker,
+ next_blocker));
+ this_blocker = next_blocker;
}
-
- Task_token* this_blocker = new Task_token(true);
workqueue->queue(new Task_function(new Middle_runner(options,
input_objects,
symtab,
// Make sure we have symbols for any required group signatures.
layout->define_group_signatures(symtab);
- Task_token* blocker = new Task_token(true);
- Task_token* symtab_lock = new Task_token(false);
+ Task_token* this_blocker = NULL;
+
+ // Allocate common symbols. We use a blocker to run this before the
+ // Scan_relocs tasks, because it writes to the symbol table just as
+ // they do.
+ if (parameters->options().define_common())
+ {
+ this_blocker = new Task_token(true);
+ this_blocker->add_blocker();
+ workqueue->queue(new Allocate_commons_task(symtab, layout, mapfile,
+ this_blocker));
+ }
// If doing garbage collection, the relocations have already been read.
// Otherwise, read and scan the relocations.
for (Input_objects::Relobj_iterator p = input_objects->relobj_begin();
p != input_objects->relobj_end();
++p)
- {
- blocker->add_blocker();
- workqueue->queue(new Scan_relocs(symtab, layout, *p,
+ {
+ Task_token* next_blocker = new Task_token(true);
+ next_blocker->add_blocker();
+ workqueue->queue(new Scan_relocs(symtab, layout, *p,
(*p)->get_relocs_data(),
- symtab_lock, blocker));
- }
+ this_blocker, next_blocker));
+ this_blocker = next_blocker;
+ }
}
else
{
p != input_objects->relobj_end();
++p)
{
- // We can read and process the relocations in any order. But we
- // only want one task to write to the symbol table at a time.
- // So we queue up a task for each object to read the
- // 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(symtab, layout, *p, symtab_lock,
- blocker));
+ Task_token* next_blocker = new Task_token(true);
+ next_blocker->add_blocker();
+ workqueue->queue(new Read_relocs(symtab, layout, *p, this_blocker,
+ next_blocker));
+ this_blocker = next_blocker;
}
}
- // Allocate common symbols. This requires write access to the
- // symbol table, but is independent of the relocation processing.
- if (parameters->options().define_common())
+ // If we failed to open any input files, it's possible for
+ // THIS_BLOCKER to be NULL here. There's no real point in
+ // continuing if that happens.
+ if (this_blocker == NULL)
{
- blocker->add_blocker();
- workqueue->queue(new Allocate_commons_task(symtab, layout, mapfile,
- symtab_lock, blocker));
+ gold_assert(parameters->errors()->error_count() > 0);
+ gold_exit(false);
}
// When all those tasks are complete, we can start laying out the
target,
layout,
mapfile),
- blocker,
+ this_blocker,
"Task_function Layout_task_runner"));
}
// written out.
Task_token* input_sections_blocker = NULL;
if (!any_postprocessing_sections)
- input_sections_blocker = new Task_token(true);
+ {
+ input_sections_blocker = new Task_token(true);
+ input_sections_blocker->add_blockers(input_objects->number_of_relobjs());
+ }
// Use a blocker to block any objects which have to wait for the
// output sections to complete before they can apply relocations.
Task_token* output_sections_blocker = new Task_token(true);
+ output_sections_blocker->add_blocker();
// Use a blocker to block the final cleanup task.
Task_token* final_blocker = new Task_token(true);
+ // Write_symbols_task, Write_sections_task, Write_data_task,
+ // Relocate_tasks.
+ final_blocker->add_blockers(3);
+ final_blocker->add_blockers(input_objects->number_of_relobjs());
+ if (!any_postprocessing_sections)
+ final_blocker->add_blocker();
// Queue a task to write out the symbol table.
- final_blocker->add_blocker();
workqueue->queue(new Write_symbols_task(layout,
symtab,
input_objects,
final_blocker));
// Queue a task to write out the output sections.
- output_sections_blocker->add_blocker();
- final_blocker->add_blocker();
workqueue->queue(new Write_sections_task(layout, of, output_sections_blocker,
final_blocker));
// Queue a task to write out everything else.
- final_blocker->add_blocker();
workqueue->queue(new Write_data_task(layout, symtab, of, final_blocker));
// Queue a task for each input object to relocate the sections and
for (Input_objects::Relobj_iterator p = input_objects->relobj_begin();
p != input_objects->relobj_end();
++p)
- {
- if (input_sections_blocker != NULL)
- input_sections_blocker->add_blocker();
- final_blocker->add_blocker();
- workqueue->queue(new Relocate_task(symtab, layout, *p, of,
- input_sections_blocker,
- output_sections_blocker,
- final_blocker));
- }
+ workqueue->queue(new Relocate_task(symtab, layout, *p, of,
+ input_sections_blocker,
+ output_sections_blocker,
+ final_blocker));
// Queue a task to write out the output sections which depend on
// input sections. If there are any sections which require
// the output file.
if (!any_postprocessing_sections)
{
- final_blocker->add_blocker();
Task* t = new Write_after_input_sections_task(layout, of,
input_sections_blocker,
final_blocker);
projects / deliverable / binutils-gdb.git / blobdiff