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thread.h
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/*
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* Copyright (C) 2011,2013 Philippe Gerum <rpm@xenomai.org>.
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*
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* Xenomai is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* Xenomai is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Xenomai; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*/
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#ifndef _COBALT_SH_ASM_THREAD_H
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#define _COBALT_SH_ASM_THREAD_H
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#include <asm-generic/xenomai/thread.h>
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struct
xnarchtcb {
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struct
xntcb core;
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#ifdef CONFIG_XENO_ARCH_FPU
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struct
thread_struct *fpup;
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#define xnarch_fpu_ptr(tcb) ((tcb)->fpup)
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#else
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#define xnarch_fpu_ptr(tcb) NULL
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#endif
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struct
{
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unsigned
long
pc;
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unsigned
long
r3;
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} mayday;
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};
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#define xnarch_fault_trap(d) ((d)->exception)
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#define xnarch_fault_code(d) 0
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#define xnarch_fault_pc(d) ((d)->regs->pc)
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#define xnarch_fault_fpu_p(d) ((d)->exception == IPIPE_TRAP_FPUERR)
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#define xnarch_fault_pf_p(d) ((d)->exception == IPIPE_TRAP_PF)
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#define xnarch_fault_bp_p(d) ((current->ptrace & PT_PTRACED) && \
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(d)->exception == IPIPE_TRAP_BP)
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#define xnarch_fault_notify(d) (xnarch_fault_bp_p(d) == 0)
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static
inline
void
xnarch_enter_root(
struct
xnthread *root) { }
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#ifdef CONFIG_XENO_ARCH_FPU
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void
xnarch_leave_root(
struct
xnthread *root);
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static
inline
void
xnarch_init_root_tcb(
struct
xnthread *thread)
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{
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struct
xnarchtcb *tcb = xnthread_archtcb(thread);
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tcb->fpup = NULL;
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}
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void
xnarch_init_shadow_tcb(
struct
xnthread *thread);
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#else
/* !CONFIG_XENO_ARCH_FPU */
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static
inline
void
xnarch_leave_root(
struct
xnthread *root) { }
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static
inline
void
xnarch_init_root_tcb(
struct
xnthread *thread) { }
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static
inline
void
xnarch_init_shadow_tcb(
struct
xnthread *thread) { }
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#endif
/* !CONFIG_XENO_ARCH_FPU */
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static
inline
int
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xnarch_handle_fpu_fault(
struct
xnthread *from,
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struct
xnthread *to,
struct
ipipe_trap_data *d)
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{
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return
0;
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}
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#endif
/* !_COBALT_SH_ASM_THREAD_H */
kernel
cobalt
arch
sh
include
asm
xenomai
thread.h
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