1 files changed, 57 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/arc/sys/ucontext.h b/sysdeps/unix/sysv/linux/arc/sys/ucontext.h
new file mode 100644
index 0000000000..ca24e7ae85
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/sys/ucontext.h
@@ -0,0 +1,57 @@
+/* struct ucontext definition, ARC version.
+   Copyright (C) 2020 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/>.  */
+
+/* System V/ARC ABI compliant context switching support.  */
+
+#ifndef _SYS_UCONTEXT_H
+#define _SYS_UCONTEXT_H	1
+
+#include <features.h>
+
+#include <bits/types/sigset_t.h>
+#include <bits/types/stack_t.h>
+
+typedef struct
+{
+  unsigned long int __pad;
+  unsigned long int __bta;
+  unsigned long int __lp_start, __lp_end, __lp_count;
+  unsigned long int __status32, __ret, __blink;
+  unsigned long int __fp, __gp;
+  unsigned long int __r12, __r11, __r10, __r9, __r8, __r7;
+  unsigned long int __r6, __r5, __r4, __r3, __r2, __r1, __r0;
+  unsigned long int __sp;
+  unsigned long int __r26;
+  unsigned long int __r25, __r24, __r23, __r22, __r21, __r20;
+  unsigned long int __r19, __r18, __r17, __r16, __r15, __r14, __r13;
+  unsigned long int __efa;
+  unsigned long int __stop_pc;
+  unsigned long int __r30, __r58, __r59;
+} mcontext_t;
+
+/* Userlevel context.  */
+typedef struct ucontext_t
+{
+  unsigned long int __uc_flags;
+  struct ucontext_t *uc_link;
+  stack_t uc_stack;
+  mcontext_t uc_mcontext;
+  sigset_t uc_sigmask;
+} ucontext_t;
+
+#endif