1 files changed, 40 insertions, 0 deletions
diff --git a/elf/tst-tls23.h b/elf/tst-tls23.h
new file mode 100644
index 0000000..d0e7345
--- /dev/null
+++ b/elf/tst-tls23.h
@@ -0,0 +1,40 @@
+/* Test that __tls_get_addr preserves caller-saved registers.
+   Copyright (C) 2025 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include <stdint.h>
+
+struct tls
+{
+  int64_t a, b, c, d;
+};
+
+extern struct tls *apply_tls (struct tls *);
+
+/* An architecture can define them to verify that caller-saved registers
+   aren't changed by __tls_get_addr.  */
+#ifndef INIT_TLS_CALL
+# define INIT_TLS_CALL()
+#endif
+
+#ifndef BEFORE_TLS_CALL
+# define BEFORE_TLS_CALL()
+#endif
+
+#ifndef AFTER_TLS_CALL
+# define AFTER_TLS_CALL()
+#endif