Initial version of the CRIS port.

1 files changed, 95 insertions, 0 deletions

diff --git a/libc/sysdeps/linux/cris/sys/ucontext.h b/libc/sysdeps/linux/cris/sys/ucontext.h
new file mode 100644
index 000000000..5f875453f
--- /dev/null
+++ b/libc/sysdeps/linux/cris/sys/ucontext.h
@@ -0,0 +1,95 @@
+/* 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.  */
+
+/* System V/cris ABI compliant context switching support.  */
+
+#ifndef _SYS_UCONTEXT_H
+#define _SYS_UCONTEXT_H 1
+
+#include <features.h>
+#include <signal.h>
+
+#include <bits/sigcontext.h>
+
+/* Type for general register.  */
+typedef long int greg_t;
+
+/* Number of general registers.  */
+#define NGREG   20
+
+/* Container for all general registers.  */
+typedef greg_t gregset_t[NGREG];
+
+/* Number of each register is the `gregset_t' array.  */
+enum
+{
+  R0 = 0,
+#define R0    R0
+  R1 = 1,
+#define R1    R1
+  R2 = 2,
+#define R2    R2
+  R3 = 3,
+#define R3    R3
+  R4 = 4,
+#define R4    R4
+  R5 = 5,
+#define R5    R5
+  R6 = 6,
+#define R6    R6
+  R7 = 7,
+#define R7    R7
+  R8 = 8,
+#define R8    R8
+  R9 = 9,
+#define R9    R9
+  R10 = 10,
+#define R10    R10
+  R11 = 11,
+#define R11    R11
+  R12 = 12,
+#define R12    R12
+  R13 = 13,
+#define R13    R13
+  R14 = 14,
+#define R14    R14
+  R15 = 15,
+#define R15    R15
+  R_SP = R14,
+#define R_SP    R_SP
+  R_PC = R15,
+#define R_PC    R_PC
+};
+
+/* A placeholder; CRIS does not have any fp regs.  */
+typedef unsigned long fpregset_t;
+
+/* A machine context is exactly a sigcontext.  */
+typedef struct sigcontext 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 /* sys/ucontext.h */