diff options
Diffstat (limited to 'compat/linux/arch/x86_64/h_syscall.c')
| -rw-r--r-- | compat/linux/arch/x86_64/h_syscall.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/compat/linux/arch/x86_64/h_syscall.c b/compat/linux/arch/x86_64/h_syscall.c new file mode 100644 index 000000000000..32485c121a47 --- /dev/null +++ b/compat/linux/arch/x86_64/h_syscall.c @@ -0,0 +1,55 @@ +/* $NetBSD: h_syscall.c,v 1.1 2023/08/19 22:56:44 christos Exp $ */ + +/*- + * Copyright (c) 2023 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Theodore Preduta. + * + * 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 <sys/cdefs.h> +__RCSID("$NetBSD: h_syscall.c,v 1.1 2023/08/19 22:56:44 christos Exp $"); +#include "h_linux.h" + +long +syscall6(long number, register_t arg1, register_t arg2, register_t arg3, + register_t arg4, register_t arg5, register_t arg6, ...) +{ + long retval; + register register_t r10 __asm__ ("r10") = arg4; + register register_t r8 __asm__ ("r8") = arg5; + register register_t r9 __asm__ ("r9") = arg6; + + __asm__ __volatile__ ("syscall" + : "=a"(retval) + : "a"(number), "D"(arg1), "S"(arg2), "d"(arg3), "r"(r10), "r"(r8), "r"(r9) + : "rcx", "r11", "memory"); + + if (retval < 0) { + errno = -retval; + return -1; + } + + return retval; +} |