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/* $NetBSD: linux_sys_machdep.c,v 1.15 2018/01/24 09:04:45 skrll Exp $ */
/*-
* Copyright (c) 2002 Ben Harris
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/param.h>
__KERNEL_RCSID(0, "$NetBSD: linux_sys_machdep.c,v 1.15 2018/01/24 09:04:45 skrll Exp $");
#include <sys/systm.h>
#include <sys/signalvar.h>
#include <sys/lwp.h>
#include <sys/cpu.h>
#include <compat/linux/common/linux_types.h>
#include <compat/linux/common/linux_signal.h>
#include <compat/linux/common/linux_siginfo.h>
#include <compat/linux/common/linux_machdep.h>
#include <compat/linux/linux_syscallargs.h>
#include <arm/cpufunc.h>
int
linux_sys_breakpoint(struct lwp *l, const void *v, register_t *retval)
{
ksiginfo_t ksi;
KSI_INIT_TRAP(&ksi);
ksi.ksi_signo = SIGTRAP;
ksi.ksi_code = TRAP_BRKPT;
trapsignal(l, &ksi);
return ERESTART; /* Leave PC pointing back at the breakpoint. */
}
int
linux_sys_cacheflush(struct lwp *l, const struct linux_sys_cacheflush_args *uap, register_t *retval)
{
/* {
syscallarg(uintptr_t) from;
syscallarg(uintptr_t) to;
syscallarg(int) flags;
} */
cpu_icache_sync_range(SCARG(uap, from),
SCARG(uap, to) - SCARG(uap, from) + 1);
*retval = 0;
return 0;
}
int
linux_sys_set_tls(struct lwp *l, const struct linux_sys_set_tls_args *uap, register_t *retval)
{
return lwp_setprivate(l, SCARG(uap, tls));
}
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