diff options
Diffstat (limited to 'src/runtime/cgo/callbacks.go')
| -rw-r--r-- | src/runtime/cgo/callbacks.go | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/src/runtime/cgo/callbacks.go b/src/runtime/cgo/callbacks.go index e7c8ef3e07..3c246a88b6 100644 --- a/src/runtime/cgo/callbacks.go +++ b/src/runtime/cgo/callbacks.go @@ -71,6 +71,42 @@ var _cgo_thread_start = &x_cgo_thread_start var x_cgo_sys_thread_create byte var _cgo_sys_thread_create = &x_cgo_sys_thread_create +// Indicates whether a dummy thread key has been created or not. +// +// When calling go exported function from C, we register a destructor +// callback, for a dummy thread key, by using pthread_key_create. + +//go:cgo_import_static x_cgo_pthread_key_created +//go:linkname x_cgo_pthread_key_created x_cgo_pthread_key_created +//go:linkname _cgo_pthread_key_created _cgo_pthread_key_created +var x_cgo_pthread_key_created byte +var _cgo_pthread_key_created = &x_cgo_pthread_key_created + +// Export crosscall2 to a c function pointer variable. +// Used to dropm in pthread key destructor, while C thread is exiting. + +//go:cgo_import_static x_crosscall2_ptr +//go:linkname x_crosscall2_ptr x_crosscall2_ptr +//go:linkname _crosscall2_ptr _crosscall2_ptr +var x_crosscall2_ptr byte +var _crosscall2_ptr = &x_crosscall2_ptr + +// Set the x_crosscall2_ptr C function pointer variable point to crosscall2. +// It's for the runtime package to call at init time. +func set_crosscall2() + +//go:linkname _set_crosscall2 runtime.set_crosscall2 +var _set_crosscall2 = set_crosscall2 + +// Store the g into the thread-specific value. +// So that pthread_key_destructor will dropm when the thread is exiting. + +//go:cgo_import_static x_cgo_bindm +//go:linkname x_cgo_bindm x_cgo_bindm +//go:linkname _cgo_bindm _cgo_bindm +var x_cgo_bindm byte +var _cgo_bindm = &x_cgo_bindm + // Notifies that the runtime has been initialized. // // We currently block at every CGO entry point (via _cgo_wait_runtime_init_done) @@ -105,3 +141,12 @@ var _cgo_yield unsafe.Pointer //go:cgo_export_static _cgo_topofstack //go:cgo_export_dynamic _cgo_topofstack + +// x_cgo_getstackbound gets the thread's C stack size and +// set the G's stack bound based on the stack size. + +//go:cgo_import_static x_cgo_getstackbound +//go:linkname x_cgo_getstackbound x_cgo_getstackbound +//go:linkname _cgo_getstackbound _cgo_getstackbound +var x_cgo_getstackbound byte +var _cgo_getstackbound = &x_cgo_getstackbound |