restore lock-skipping for processes that return to single-threaded state

[musl] / src / internal / libc.h

diff --git a/src/internal/libc.h b/src/internal/libc.h
index ac97dc7..619bba8 100644 (file)
--- a/src/internal/libc.h
+++ b/src/internal/libc.h
@@ -18,10 +18,11 @@ struct tls_module {
 };
 
 struct __libc {
-       int can_do_threads;
-       int threaded;
-       int secure;
-       volatile int threads_minus_1;
+       char can_do_threads;
+       char threaded;
+       char secure;
+       volatile signed char need_locks;
+       int threads_minus_1;
        size_t *auxv;
        struct tls_module *tls_head;
        size_t tls_size, tls_align, tls_cnt;