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      1 /*	$NetBSD: h_linux.h,v 1.2 2023/08/23 20:05:05 rillig Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2023 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Theodore Preduta.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 #ifndef	SRC_TESTS_COMPAT_LINUX_H_LINUX_H_
     32 #define	SRC_TESTS_COMPAT_LINUX_H_LINUX_H_
     33 
     34 #include <sys/types.h>	/* For register_t. */
     35 
     36 #define	FAIL			(-1)
     37 
     38 #define	syscall(number, ...)	syscall6(number, ## __VA_ARGS__, \
     39 				    0, 0, 0, 0, 0, 0)
     40 
     41 #define	RS(x)			do { if ((x) == -1) exit(errno); } while (0)
     42 #define	REQUIRE(x)		do { if (!(x)) exit(FAIL); } while (0)
     43 
     44 /* Convenience wrappers for common syscalls. */
     45 #define	close(fd)		(int)syscall(LINUX_SYS_close, fd)
     46 #define	exit(status)		(void)syscall(LINUX_SYS_exit_group, status)
     47 #define	fcntl(fd, cmd, ...)	(int)syscall(LINUX_SYS_fcntl, fd, cmd, \
     48 			            ## __VA_ARGS__)
     49 #define	lseek(fd, off, whence)	(off_t)syscall(LINUX_SYS_lseek, fd, \
     50 				    (register_t)off, whence)
     51 #define	mkdir(path, mode)	(int)syscall(LINUX_SYS_mkdir, \
     52 				    (register_t)path, mode)
     53 #define	open(path, flags, ...)	(int)syscall(LINUX_SYS_open, \
     54 				    (register_t)path, flags, \
     55 				    ## __VA_ARGS__)
     56 #define	read(fd, buf, count)	(ssize_t)syscall(LINUX_SYS_read, fd, \
     57 				    (register_t)buf, count)
     58 #define	rename(from, to)	(int)syscall(LINUX_SYS___posix_rename, \
     59 				    (register_t)from, (register_t)to)
     60 #define	rmdir(path)		(int)syscall(LINUX_SYS_rmdir, \
     61 				    (register_t)path)
     62 #define	unlink(path)		(int)syscall(LINUX_SYS_unlink, \
     63 				    (register_t)path)
     64 #define	write(fd, buf, count)	(ssize_t)syscall(LINUX_SYS_write, fd, \
     65 				    (register_t)buf, count)
     66 
     67 /* GCC builtins. */
     68 #define	strcmp(s1, s2)		__builtin_strcmp(s1, s2)
     69 #define	strlen(s)		__builtin_strlen(s)
     70 
     71 long	syscall6(long number, register_t, register_t, register_t, register_t,
     72 	    register_t, register_t, ...);
     73 
     74 extern int errno;
     75 
     76 #endif /* !SRC_TESTS_COMPAT_LINUX_H_LINUX_H_ */
     77