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-rw-r--r--src/env/__reset_tls.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/src/env/__reset_tls.c b/src/env/__reset_tls.c
new file mode 100644
index 00000000..28c4405e
--- /dev/null
+++ b/src/env/__reset_tls.c
@@ -0,0 +1,22 @@
+#ifndef SHARED
+
+#include <string.h>
+#include "pthread_impl.h"
+#include "libc.h"
+
+extern struct tls_image {
+	void *image;
+	size_t len, size, align;
+} __static_tls ATTR_LIBC_VISIBILITY;
+
+#define T __static_tls
+
+void __reset_tls()
+{
+	if (!T.size) return;
+	pthread_t self = __pthread_self();
+	memcpy(self->dtv[1], T.image, T.len);
+	memset((char *)self->dtv[1]+T.len, 0, T.size-T.len);
+}
+
+#endif