1 files changed, 88 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/s390/sys/ucontext.h b/sysdeps/unix/sysv/linux/s390/sys/ucontext.h
new file mode 100644
index 0000000000..4e32361c3b
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/s390/sys/ucontext.h
@@ -0,0 +1,88 @@
+/* Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc.
+   Contributed by Denis Joseph Barrow (djbarrow@de.ibm.com).
+   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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef _SYS_UCONTEXT_H
+#define _SYS_UCONTEXT_H	1
+/* Forward definition to avoid parse errors */
+struct ucontext;
+typedef struct ucontext ucontext_t;
+#include <features.h>
+#include <signal.h>
+
+/* We need the signal context definitions even if they are not used
+   included in <signal.h>.  */
+#include <bits/sigcontext.h>
+
+/* Type for a program status word.  */
+typedef struct
+{
+  unsigned long mask;
+  unsigned long addr;
+} __attribute__ ((aligned(8))) __psw_t;
+
+/* Type for a general-purpose register.  */
+typedef unsigned long greg_t;
+
+/* And the whole bunch of them.  We should have used `struct s390_regs',
+   but to avoid name space pollution and since the tradition says that
+   the register set is an array, we make gregset_t a simple array
+   that has the same size as s390_regs.  This is needed for the
+   elf_prstatus structure.  */
+#if __WORDSIZE == 64
+# define NGREG 27
+#else
+# define NGREG 36
+#endif
+/* Must match kernels psw_t alignment.  */
+typedef greg_t gregset_t[NGREG] __attribute__ ((aligned(8)));
+
+typedef union
+  {
+    double  d;
+    float   f;
+  } fpreg_t;
+
+/* Register set for the floating-point registers.  */
+typedef struct
+  {
+    unsigned int fpc;
+    fpreg_t fprs[16];
+  } fpregset_t;
+
+/* Context to describe whole processor state.  */
+typedef struct
+  {
+    __psw_t psw;
+    unsigned long gregs[16];
+    unsigned int aregs[16];
+    fpregset_t fpregs;
+  } mcontext_t;
+
+/* Userlevel context.  */
+struct ucontext
+  {
+    unsigned long int uc_flags;
+    struct ucontext *uc_link;
+    stack_t uc_stack;
+    mcontext_t uc_mcontext;
+    __sigset_t uc_sigmask;
+  };
+
+
+#endif /* sys/ucontext.h */