add experimental aarch64 support

Ported over from GNU C Library and runtime tested in Qemu.

1 files changed, 18 insertions, 0 deletions

diff --git a/libc/sysdeps/linux/aarch64/__syscall_error.c b/libc/sysdeps/linux/aarch64/__syscall_error.c
new file mode 100644
index 000000000..2b642e816
--- /dev/null
+++ b/libc/sysdeps/linux/aarch64/__syscall_error.c
@@ -0,0 +1,18 @@
+/* Wrapper for setting errno.
+ *
+ * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+#include <errno.h>
+#include <features.h>
+
+/* This routine is jumped to by all the syscall handlers, to stash
+ * an error number into errno.  */
+int __syscall_error(int err_no) attribute_hidden;
+int __syscall_error(int err_no)
+{
+	__set_errno(-err_no);
+	return -1;
+}