1 files changed, 95 insertions, 0 deletions
diff --git a/sysdeps/s390/sys/ucontext.h b/sysdeps/s390/sys/ucontext.h
new file mode 100644
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+++ b/sysdeps/s390/sys/ucontext.h
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+/* Copyright (C) 2000 Free Software Foundation, Inc.
+   Contributed by Martin Schwidefsky (schwidefsky@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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+/* System V/s390 ABI compliant context switching support.  */
+
+#ifndef _SYS_UCONTEXT_H
+#define _SYS_UCONTEXT_H	1
+
+#include <features.h>
+#include <signal.h>
+
+/* Type for general register.  */
+typedef int greg_t;
+
+/* Number of general registers.  */
+#define NGREG	16
+
+/* Number of each register is the `greg_t gregs[NREG]' array.  */
+enum
+{
+  R_GPR0 = 0,
+#define R_GPR0	R_GPR0
+  R_GPR1 = 1,
+#define R_GPR1	R_GPR1
+  R_GPR2 = 2,
+#define R_GPR2	R_GPR2
+  R_GPR3 = 3,
+#define R_GPR3	R_GPR3
+  R_GPR4 = 4,
+#define R_GPR4	R_GPR4
+  R_GPR5 = 5,
+#define R_GPR5	R_GPR5
+  R_GPR6 = 6,
+#define R_GPR6	R_GPR6
+  R_GPR7 = 7,
+#define R_GPR7	R_GPR7
+  R_GPR8 = 8,
+#define R_GPR8	R_GPR8
+  R_GPR9 = 9,
+#define R_GPR9	R_GPR9
+  R_GPRA = 10,
+#define R_GPRA	R_GPRA
+  R_GPRB = 11,
+#define R_GPRB	R_GPRB
+  R_GPRC = 12,
+#define R_GPRC	R_GPRC
+  R_GPRD = 13,
+#define R_GPRD	R_GPRD
+  R_GPRE = 14,
+#define R_GPRE	R_GPRE
+  R_GPRF = 15
+#define R_GPRF	R_GPRF
+};
+
+/* Structure to describe FPU registers.  */
+typedef long long fpreg_t;
+
+/* Context to describe whole processor state.  */
+typedef struct
+{
+  int version;
+  greg_t gregs[NGREG];
+  fpreg_t fpregs[16];
+} mcontext_t;
+
+#define MCONTEXT_VERSION 1
+
+/* Userlevel context.  */
+typedef struct ucontext
+{
+  unsigned long int uc_flags;
+  struct ucontext *uc_links;
+  __sigset_t uc_sigmask;
+  stack_t uc_stack;
+  mcontext_t uc_mcontext;
+  long int uc_filler[170];
+} ucontext_t;
+
+#endif /* sys/ucontext.h */