diff options
Diffstat (limited to 'src/runtime/proc.go')
| -rw-r--r-- | src/runtime/proc.go | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/runtime/proc.go b/src/runtime/proc.go index 7b6183d905..50f9dd7f52 100644 --- a/src/runtime/proc.go +++ b/src/runtime/proc.go @@ -12,6 +12,12 @@ func runtime_init() //go:linkname main_init main.init func main_init() +// main_init_done is a signal used by cgocallbackg that initialization +// has been completed. It is made before _cgo_notify_runtime_init_done, +// so all cgo calls can rely on it existing. When main_init is complete, +// it is closed, meaning cgocallbackg can reliably receive from it. +var main_init_done chan bool + //go:linkname main_main main.main func main_main() @@ -70,6 +76,7 @@ func main() { // Allocate new M as main_main() is expected to block forever. systemstack(newextram) } + main_init_done = make(chan bool) if iscgo { if _cgo_thread_start == nil { throw("_cgo_thread_start missing") @@ -95,6 +102,7 @@ func main() { } main_init() + close(main_init_done) needUnlock = false unlockOSThread() |