1 files changed, 44 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/nios2/vfork.S b/sysdeps/unix/sysv/linux/nios2/vfork.S
new file mode 100644
index 0000000000..67a06520d0
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/nios2/vfork.S
@@ -0,0 +1,44 @@
+/* vfork for Nios II Linux.
+   Copyright (C) 2005-2015 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <sysdep.h>
+#include <tcb-offsets.h>
+
+ENTRY(__vfork)
+
+	ldw	r6, PID_OFFSET(r23)
+	sub	r7, zero, r6
+	bne	r7, zero, 2f
+	movhi	r7, %hi(0x80000000)
+2:
+	stw	r7, PID_OFFSET(r23)
+
+	movi	r4, 0x4111 /* (CLONE_VM | CLONE_VFORK | SIGCHLD) */
+	mov	r5, zero
+	DO_CALL (clone, 2)
+
+	beq	r2, zero, 1f
+	stw	r6, PID_OFFSET(r23)
+1:
+	bne	r7, zero, SYSCALL_ERROR_LABEL
+	ret
+
+PSEUDO_END (__vfork)
+libc_hidden_def (__vfork)
+
+weak_alias (__vfork, vfork)