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-rw-r--r--libc/sysdeps/linux/h8300/sys/ucontext.h75
1 files changed, 75 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/h8300/sys/ucontext.h b/libc/sysdeps/linux/h8300/sys/ucontext.h
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+/* Copyright (C) 1997, 1999, 2001 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+/* H8/300 compliant context switching support. */
+
+#ifndef _SYS_UCONTEXT_H
+#define _SYS_UCONTEXT_H 1
+
+#include <features.h>
+#include <signal.h>
+
+typedef int greg_t;
+
+/* Number of general registers. */
+#define NFPREG 8
+
+/* Container for all general registers. */
+typedef greg_t gregset_t[NFPREG];
+
+#ifdef __USE_GNU
+/* Number of each register is the `gregset_t' array. */
+enum
+{
+ ER0 = 0,
+#define ER0 ER0
+ ER1 = 1,
+#define ER1 ER1
+ ER2 = 2,
+#define ER2 ER2
+ ER3 = 3,
+#define ER3 ER3
+ ER4 = 4,
+#define ER4 ER4
+ ER5 = 5,
+#define ER5 ER5
+ ER6 = 6,
+#define ER6 ER6
+ ER7 = 7,
+#define ER7 ER7
+};
+#endif
+
+/* Context to describe whole processor state. */
+typedef struct
+ {
+ gregset_t gregs;
+ } mcontext_t;
+
+/* Userlevel context. */
+typedef struct ucontext
+ {
+ unsigned long int uc_flags;
+ struct ucontext *uc_link;
+ stack_t uc_stack;
+ mcontext_t uc_mcontext;
+ __sigset_t uc_sigmask;
+ } ucontext_t;
+
+#endif
+