/* $NetBSD: mach_syscall.c,v 1.9 2008/04/28 20:23:32 martin Exp $ */ /*- * Copyright (c) 2002 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Emmanuel Dreyfus * * 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. */ #include "opt_compat_mach.h" #include <sys/cdefs.h> __KERNEL_RCSID(0, "$NetBSD: mach_syscall.c,v 1.9 2008/04/28 20:23:32 martin Exp $"); #include <sys/types.h> #include <sys/systm.h> #include <sys/syscall.h> #include <compat/mach/mach_syscall.h> #include <compat/mach/arch/powerpc/ppccalls/mach_ppccalls_syscall.h> #include <compat/mach/arch/powerpc/fasttraps/mach_fasttraps_syscall.h> extern const struct sysent mach_sysent[]; extern const struct sysent mach_ppccalls_sysent[]; extern const struct sysent mach_fasttraps_sysent[]; #define EMULNAME(x) __CONCAT(mach_,x) #define EMULNAMEU(x) (x) /* COMPAT_MACH uses the native syscalls */ #define MACH_FASTTRAPS 0x00007ff0 #define MACH_PPCCALLS 0x00006000 #define MACH_ODD_SYSCALL_MASK 0x0000fff0 static inline const struct sysent *mach_syscall_dispatch(register_t *); #include "syscall.c" static inline const struct sysent * mach_syscall_dispatch(register_t *code_p) { const struct sysent *callp = NULL; register_t code = *code_p; switch (code & MACH_ODD_SYSCALL_MASK) { case MACH_PPCCALLS: code = (code - MACH_PPCCALLS) & (MACH_PPCCALLS_SYS_NSYSENT-1); callp = mach_ppccalls_sysent; break; case MACH_FASTTRAPS: code = (code - MACH_FASTTRAPS) & (MACH_FASTTRAPS_SYS_NSYSENT-1); callp = mach_fasttraps_sysent; break; default: if (code < 0) { code = -code & (MACH_SYS_NSYSENT-1); callp = mach_sysent; } break; } if (callp != NULL) { *code_p = code; callp += code; } return callp; }