minix/sys/sys/syscallvar.h
Lionel Sambuc 84d9c625bf Synchronize on NetBSD-CVS (2013/12/1 12:00:00 UTC)
- Fix for possible unset uid/gid in toproto
 - Fix for default mtree style
 - Update libelf
 - Importing libexecinfo
 - Resynchronize GCC, mpc, gmp, mpfr
 - build.sh: Replace params with show-params.
     This has been done as the make target has been renamed in the same
     way, while a new target named params has been added. This new
     target generates a file containing all the parameters, instead of
     printing it on the console.
 - Update test48 with new etc/services (Fix by Ben Gras <ben@minix3.org)
     get getservbyport() out of the inner loop

Change-Id: Ie6ad5226fa2621ff9f0dee8782ea48f9443d2091
2014-07-28 17:05:06 +02:00

98 lines
2.9 KiB
C

/* $NetBSD: syscallvar.h,v 1.8 2013/06/29 16:50:51 rmind Exp $ */
/*-
* Copyright (c) 2008 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software developed for The NetBSD Foundation
* by Andrew Doran.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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.
*/
#ifndef _SYS_SYSCALLVAR_H_
#define _SYS_SYSCALLVAR_H_
#ifndef _KERNEL
#error nothing of interest to userspace here
#endif
#include <sys/systm.h>
#include <sys/proc.h>
extern struct emul emul_netbsd;
struct syscall_package {
u_short sp_code;
u_short sp_flags;
sy_call_t *sp_call;
};
void syscall_init(void);
int syscall_establish(const struct emul *, const struct syscall_package *);
int syscall_disestablish(const struct emul *, const struct syscall_package *);
static inline int
sy_call(const struct sysent *sy, struct lwp *l, const void *uap,
register_t *rval)
{
int error;
l->l_sysent = sy;
error = (*sy->sy_call)(l, uap, rval);
l->l_sysent = NULL;
return error;
}
static inline int
sy_invoke(const struct sysent *sy, struct lwp *l, const void *uap,
register_t *rval, int code)
{
const bool do_trace = l->l_proc->p_trace_enabled &&
(sy->sy_flags & SYCALL_INDIRECT) == 0;
int error;
if (__predict_true(!do_trace) || (error = trace_enter(code, uap,
sy->sy_narg)) == 0) {
rval[0] = 0;
#if !defined(__mips__)
/*
* Due to the mips userland code for SYS_break needing v1 to be
* preserved, we can't clear this on mips.
*/
rval[1] = 0;
#endif
error = sy_call(sy, l, uap, rval);
}
if (__predict_false(do_trace)) {
trace_exit(code, rval, error);
}
return error;
}
/* inclusion in the kernel currently depends on SYSCALL_DEBUG */
extern const char * const syscallnames[];
#endif /* _SYS_SYSCALLVAR_H_ */