From 35df59db508dbf23437f3253f25147191796e19f Mon Sep 17 00:00:00 2001 From: Tobias Anderberg Date: Mon, 16 Sep 2002 08:08:37 +0000 Subject: Initial version of the CRIS port. --- libc/sysdeps/linux/cris/sys/ucontext.h | 95 ++++++++++++++++++++++++++++++++++ 1 file changed, 95 insertions(+) create mode 100644 libc/sysdeps/linux/cris/sys/ucontext.h (limited to 'libc/sysdeps/linux/cris/sys/ucontext.h') 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 +#include + +#include + +/* 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 */ -- cgit v1.2.3