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Rewrite workqueue. This version eliminates the master thread, and

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reduces the amount of locking required to find a new thread to run.
This commit is contained in:
Ian Lance Taylor
2007-12-14 19:00:21 +00:00
parent 7004837e8d
commit 17a1d0a9b2
33 changed files with 1491 additions and 1433 deletions
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62
gold/layout.h
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@@ -67,7 +67,7 @@ class Layout_task_runner : public Task_function_runner
// Run the operation.
void
run(Workqueue*);
run(Workqueue*, const Task*);
private:
Layout_task_runner(const Layout_task_runner&);
@@ -168,7 +168,12 @@ class Layout
// Finalize the layout after all the input sections have been added.
off_t
finalize(const Input_objects*, Symbol_table*);
finalize(const Input_objects*, Symbol_table*, const Task*);
// Return whether any sections require postprocessing.
bool
any_postprocessing_sections() const
{ return this->any_postprocessing_sections_; }
// Return the size of the output file.
off_t
@@ -283,11 +288,12 @@ class Layout
// Count the local symbols in the regular symbol table and the dynamic
// symbol table, and build the respective string pools.
void
count_local_symbols(const Input_objects*);
count_local_symbols(const Task*, const Input_objects*);
// Create the output sections for the symbol table.
void
create_symtab_sections(const Input_objects*, Symbol_table*, off_t*);
create_symtab_sections(const Input_objects*, Symbol_table*, const Task*,
off_t*);
// Create the .shstrtab section.
Output_section*
@@ -368,14 +374,14 @@ class Layout
// Set the final file offsets of all the sections not associated
// with a segment. We set section offsets in three passes: the
// first handles all allocated sections, the second sections that
// can be handled after input-sections are processed, and the last
// the late-bound STRTAB sections (probably only shstrtab, which is
// the one we care about because it holds section names).
// require postprocessing, and the last the late-bound STRTAB
// sections (probably only shstrtab, which is the one we care about
// because it holds section names).
enum Section_offset_pass
{
BEFORE_INPUT_SECTIONS_PASS,
AFTER_INPUT_SECTIONS_PASS,
STRTAB_AFTER_INPUT_SECTIONS_PASS
POSTPROCESSING_SECTIONS_PASS,
STRTAB_AFTER_POSTPROCESSING_SECTIONS_PASS
};
off_t
set_section_offsets(off_t, Section_offset_pass pass);
@@ -472,6 +478,8 @@ class Layout
bool input_without_gnu_stack_note_;
// Whether we have seen an object file that uses the static TLS model.
bool has_static_tls_;
// Whether any sections require postprocessing.
bool any_postprocessing_sections_;
};
// This task handles writing out data in output sections which is not
@@ -492,11 +500,11 @@ class Write_sections_task : public Task
// The standard Task methods.
Is_runnable_type
is_runnable(Workqueue*);
Task_token*
is_runnable();
Task_locker*
locks(Workqueue*);
void
locks(Task_locker*);
void
run(Workqueue*);
@@ -527,11 +535,11 @@ class Write_data_task : public Task
// The standard Task methods.
Is_runnable_type
is_runnable(Workqueue*);
Task_token*
is_runnable();
Task_locker*
locks(Workqueue*);
void
locks(Task_locker*);
void
run(Workqueue*);
@@ -562,11 +570,11 @@ class Write_symbols_task : public Task
// The standard Task methods.
Is_runnable_type
is_runnable(Workqueue*);
Task_token*
is_runnable();
Task_locker*
locks(Workqueue*);
void
locks(Task_locker*);
void
run(Workqueue*);
@@ -602,11 +610,11 @@ class Write_after_input_sections_task : public Task
// The standard Task methods.
Is_runnable_type
is_runnable(Workqueue*);
Task_token*
is_runnable();
Task_locker*
locks(Workqueue*);
void
locks(Task_locker*);
void
run(Workqueue*);
@@ -616,8 +624,6 @@ class Write_after_input_sections_task : public Task
{ return "Write_after_input_sections_task"; }
private:
class Write_sections_locker;
Layout* layout_;
Output_file* of_;
Task_token* input_sections_blocker_;
@@ -635,7 +641,7 @@ class Close_task_runner : public Task_function_runner
// Run the operation.
void
run(Workqueue*);
run(Workqueue*, const Task*);
private:
Output_file* of_;