support for TLS in dynamic-loaded (dlopen) modules

[musl] / src / thread / lock_ptc.c

diff --git a/src/thread/lock_ptc.c b/src/thread/lock_ptc.c
new file mode 100644 (file)
index 0000000..7adedab
--- /dev/null
+++ b/src/thread/lock_ptc.c
@@ -0,0 +1,18 @@
+#include <pthread.h>
+
+static pthread_rwlock_t lock = PTHREAD_RWLOCK_INITIALIZER;
+
+void __inhibit_ptc()
+{
+       pthread_rwlock_wrlock(&lock);
+}
+
+void __acquire_ptc()
+{
+       pthread_rwlock_rdlock(&lock);
+}
+
+void __release_ptc()
+{
+       pthread_rwlock_unlock(&lock);
+}