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linux_sys_machdep.c revision 1.4.2.2
      1  1.4.2.2  jdolecek /*	$NetBSD: linux_sys_machdep.c,v 1.4.2.2 2002/02/11 20:09:31 jdolecek Exp $	*/
      2  1.4.2.2  jdolecek 
      3  1.4.2.2  jdolecek /*-
      4  1.4.2.2  jdolecek  * Copyright (c) 2002 Ben Harris
      5  1.4.2.2  jdolecek  * All rights reserved.
      6  1.4.2.2  jdolecek  *
      7  1.4.2.2  jdolecek  * Redistribution and use in source and binary forms, with or without
      8  1.4.2.2  jdolecek  * modification, are permitted provided that the following conditions
      9  1.4.2.2  jdolecek  * are met:
     10  1.4.2.2  jdolecek  * 1. Redistributions of source code must retain the above copyright
     11  1.4.2.2  jdolecek  *    notice, this list of conditions and the following disclaimer.
     12  1.4.2.2  jdolecek  * 2. Redistributions in binary form must reproduce the above copyright
     13  1.4.2.2  jdolecek  *    notice, this list of conditions and the following disclaimer in the
     14  1.4.2.2  jdolecek  *    documentation and/or other materials provided with the distribution.
     15  1.4.2.2  jdolecek  * 3. The name of the author may not be used to endorse or promote products
     16  1.4.2.2  jdolecek  *    derived from this software without specific prior written permission.
     17  1.4.2.2  jdolecek  *
     18  1.4.2.2  jdolecek  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     19  1.4.2.2  jdolecek  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     20  1.4.2.2  jdolecek  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     21  1.4.2.2  jdolecek  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     22  1.4.2.2  jdolecek  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     23  1.4.2.2  jdolecek  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     24  1.4.2.2  jdolecek  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     25  1.4.2.2  jdolecek  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     26  1.4.2.2  jdolecek  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     27  1.4.2.2  jdolecek  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     28  1.4.2.2  jdolecek  */
     29  1.4.2.2  jdolecek 
     30  1.4.2.2  jdolecek #include <sys/param.h>
     31  1.4.2.2  jdolecek 
     32  1.4.2.2  jdolecek __RCSID("$Id: linux_sys_machdep.c,v 1.4.2.2 2002/02/11 20:09:31 jdolecek Exp $");
     33  1.4.2.2  jdolecek 
     34  1.4.2.2  jdolecek #include <sys/systm.h>
     35  1.4.2.2  jdolecek 
     36  1.4.2.2  jdolecek #include <compat/linux/common/linux_types.h>
     37  1.4.2.2  jdolecek #include <compat/linux/common/linux_signal.h>
     38  1.4.2.2  jdolecek #include <compat/linux/common/linux_siginfo.h>
     39  1.4.2.2  jdolecek #include <compat/linux/common/linux_machdep.h>
     40  1.4.2.2  jdolecek #include <compat/linux/linux_syscallargs.h>
     41  1.4.2.2  jdolecek 
     42  1.4.2.2  jdolecek #include <arm/cpufunc.h>
     43  1.4.2.2  jdolecek 
     44  1.4.2.2  jdolecek int
     45  1.4.2.2  jdolecek linux_sys_breakpoint(struct proc *p, void *v, register_t *retval)
     46  1.4.2.2  jdolecek {
     47  1.4.2.2  jdolecek 
     48  1.4.2.2  jdolecek 	trapsignal(p, SIGTRAP, 0);
     49  1.4.2.2  jdolecek 	return ERESTART; /* Leave PC pointing back at the breakpoint. */
     50  1.4.2.2  jdolecek }
     51  1.4.2.2  jdolecek 
     52  1.4.2.2  jdolecek int
     53  1.4.2.2  jdolecek linux_sys_cacheflush(struct proc *p, void *v, register_t *retval)
     54  1.4.2.2  jdolecek {
     55  1.4.2.2  jdolecek #ifndef arm26
     56  1.4.2.2  jdolecek 	struct linux_sys_cacheflush_args /* {
     57  1.4.2.2  jdolecek 		syscallarg(uintptr_t) from;
     58  1.4.2.2  jdolecek 		syscallarg(uintptr_t) to;
     59  1.4.2.2  jdolecek 	} */ *uap = v;
     60  1.4.2.2  jdolecek 
     61  1.4.2.2  jdolecek 	cpu_icache_sync_range(SCARG(uap, from),
     62  1.4.2.2  jdolecek 	    SCARG(uap, to) - SCARG(uap, from) + 1);
     63  1.4.2.2  jdolecek #endif
     64  1.4.2.2  jdolecek 	*retval = 0;
     65  1.4.2.2  jdolecek 	return 0;
     66  1.4.2.2  jdolecek }
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