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75 lines
1.5 KiB
C
75 lines
1.5 KiB
C
/**
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* Native CPU interface
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*
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* The native CPU uses system calls to simulate hardware access.
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*
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* Copyright (C) 2013 Ludwig Ortmann
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*
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* This file is subject to the terms and conditions of the GNU Lesser General
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* Public License. See the file LICENSE in the top level directory for more
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* details.
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*/
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/**
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* @ingroup arch
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* @defgroup native_cpu Native CPU
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* @ingroup cpu
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* @brief CPU abstraction for the native port
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* @{
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* @author Ludwig Ortmann <ludwig.ortmann@fu-berlin.de>
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*/
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#ifndef _CPU_H
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#define _CPU_H
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#include <sys/param.h>
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/* enable signal handler register access on different platforms
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* check here for more:
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* http://sourceforge.net/p/predef/wiki/OperatingSystems/
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*/
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#ifdef BSD // BSD = (FreeBSD, Darwin, ...)
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#ifndef _XOPEN_SOURCE
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#define _XOPEN_SOURCE
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#include <ucontext.h>
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#undef _XOPEN_SOURCE
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#else
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#include <ucontext.h>
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#endif
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#elif defined(__linux__)
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#ifndef _GNU_SOURCE
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#define GNU_SOURCE
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#include <ucontext.h>
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#undef GNU_SOURCE
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#else
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#include <ucontext.h>
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#endif
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#endif // BSD/Linux
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#include "kernel_internal.h"
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#include "sched.h"
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#include "cpu-conf.h"
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/* TODO: choose better value? */
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#define F_CPU 1000000
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void dINT(void);
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void eINT(void);
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/**
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* register interrupt handler handler for interrupt sig
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*/
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int register_interrupt(int sig, void (*handler)(void));
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/**
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* unregister interrupt handler for interrupt sig
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*/
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int unregister_interrupt(int sig);
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/* this should be defined elsewhere */
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void thread_yield(void);
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/** @} */
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#endif //_CPU_H
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