1 files changed, 38 insertions, 0 deletions
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/nios2/vfork.S b/libpthread/nptl/sysdeps/unix/sysv/linux/nios2/vfork.S
new file mode 100644
index 000000000..6ee414c20
--- /dev/null
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/nios2/vfork.S
@@ -0,0 +1,38 @@
+/* Copyright (C) 2005 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 <tcb-offsets.h>
+
+/* Save the PID value.  */
+#define SAVE_PID \
+	str	lr, [sp, #-4]!;		/* Save LR.  */			\
+	mov	r0, #0xffff0fff;	/* Point to the high page.  */	\
+	mov	lr, pc;			/* Save our return address.  */	\
+	sub	pc, r0, #31;		/* Jump to the TLS entry.  */	\
+	ldr	lr, [sp], #4;		/* Restore LR.  */		\
+	mov	r2, r0;			/* Save the TLS addr in r2.  */	\
+	ldr	r3, [r2, #PID_OFFSET];	/* Load the saved PID.  */	\
+	rsbs	r0, r3, #0;		/* Negate it.  */		\
+	moveq	r0, #0x80000000;	/* Use 0x80000000 if it was 0.  */ \
+	str	r0, [r2, #PID_OFFSET]	/* Store the temporary PID.  */
+
+/* Restore the old PID value in the parent.  */
+#define RESTORE_PID \
+	cmp	r0, #0;			/* If we are the parent... */	\
+	strne	r3, [r2, #PID_OFFSET]	/* ... restore the saved PID.  */
+
+#include "../../../../../../../libc/sysdeps/linux/nios2/vfork.S"