1/*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1994 Christos Zoulas 5 * Copyright (c) 1995 Frank van der Linden 6 * Copyright (c) 1995 Scott Bartram 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 * 31 * from: svr4_util.h,v 1.5 1994/11/18 02:54:31 christos Exp 32 * from: linux_util.h,v 1.2 1995/03/05 23:23:50 fvdl Exp 33 * $FreeBSD$ 34 */ 35 36#ifndef _LINUX_UTIL_H_ 37#define _LINUX_UTIL_H_ 38 39#include <vm/vm.h> 40#include <vm/vm_param.h> 41#include <vm/pmap.h> 42#include <sys/exec.h> 43#include <sys/sysent.h> 44#include <sys/syslog.h> 45#include <sys/cdefs.h> 46#include <sys/uio.h> 47 48MALLOC_DECLARE(M_LINUX); 49MALLOC_DECLARE(M_EPOLL); 50MALLOC_DECLARE(M_FUTEX); 51MALLOC_DECLARE(M_FUTEX_WP); 52 53extern char linux_emul_path[]; 54 55int linux_emul_convpath(struct thread *, const char *, enum uio_seg, char **, int, int); 56 57#define LCONVPATH_AT(td, upath, pathp, i, dfd) \ 58 do { \ 59 int _error; \ 60 \ 61 _error = linux_emul_convpath(td, upath, UIO_USERSPACE, \ 62 pathp, i, dfd); \ 63 if (*(pathp) == NULL) \ 64 return (_error); \ 65 } while (0) 66 67#define LCONVPATH(td, upath, pathp, i) \ 68 LCONVPATH_AT(td, upath, pathp, i, AT_FDCWD) 69 70#define LCONVPATHEXIST(td, upath, pathp) LCONVPATH(td, upath, pathp, 0) 71#define LCONVPATHEXIST_AT(td, upath, pathp, dfd) LCONVPATH_AT(td, upath, pathp, 0, dfd) 72#define LCONVPATHCREAT(td, upath, pathp) LCONVPATH(td, upath, pathp, 1) 73#define LCONVPATHCREAT_AT(td, upath, pathp, dfd) LCONVPATH_AT(td, upath, pathp, 1, dfd) 74#define LFREEPATH(path) free(path, M_TEMP) 75 76#define DUMMY(s) \ 77LIN_SDT_PROBE_DEFINE0(dummy, s, entry); \ 78LIN_SDT_PROBE_DEFINE0(dummy, s, not_implemented); \ 79LIN_SDT_PROBE_DEFINE1(dummy, s, return, "int"); \ 80int \ 81linux_ ## s(struct thread *td, struct linux_ ## s ## _args *args) \ 82{ \ 83 static pid_t pid; \ 84 \ 85 LIN_SDT_PROBE0(dummy, s, entry); \ 86 \ 87 if (pid != td->td_proc->p_pid) { \ 88 linux_msg(td, "syscall %s not implemented", #s); \ 89 LIN_SDT_PROBE0(dummy, s, not_implemented); \ 90 pid = td->td_proc->p_pid; \ 91 }; \ 92 \ 93 LIN_SDT_PROBE1(dummy, s, return, ENOSYS); \ 94 return (ENOSYS); \ 95} \ 96struct __hack 97 98/* 99 * This is for the syscalls that are not even yet implemented in Linux. 100 * 101 * They're marked as UNIMPL in syscall.master so it will 102 * have nosys record in linux_sysent[]. 103 */ 104#define UNIMPLEMENTED(s) 105 106void linux_msg(const struct thread *td, const char *fmt, ...) 107 __printflike(2, 3); 108 109struct linux_device_handler { 110 char *bsd_driver_name; 111 char *linux_driver_name; 112 char *bsd_device_name; 113 char *linux_device_name; 114 int linux_major; 115 int linux_minor; 116 int linux_char_device; 117}; 118 119int linux_device_register_handler(struct linux_device_handler *h); 120int linux_device_unregister_handler(struct linux_device_handler *h); 121char *linux_driver_get_name_dev(device_t dev); 122int linux_driver_get_major_minor(const char *node, int *major, int *minor); 123char *linux_get_char_devices(void); 124void linux_free_get_char_devices(char *string); 125 126#if defined(KTR) 127 128#define KTR_LINUX KTR_SUBSYS 129#define LINUX_CTRFMT(nm, fmt) #nm"("fmt")" 130 131#define LINUX_CTR6(f, m, p1, p2, p3, p4, p5, p6) do { \ 132 CTR6(KTR_LINUX, LINUX_CTRFMT(f, m), \ 133 p1, p2, p3, p4, p5, p6); \ 134} while (0) 135 136#define LINUX_CTR(f) LINUX_CTR6(f, "", 0, 0, 0, 0, 0, 0) 137#define LINUX_CTR0(f, m) LINUX_CTR6(f, m, 0, 0, 0, 0, 0, 0) 138#define LINUX_CTR1(f, m, p1) LINUX_CTR6(f, m, p1, 0, 0, 0, 0, 0) 139#define LINUX_CTR2(f, m, p1, p2) LINUX_CTR6(f, m, p1, p2, 0, 0, 0, 0) 140#define LINUX_CTR3(f, m, p1, p2, p3) LINUX_CTR6(f, m, p1, p2, p3, 0, 0, 0) 141#define LINUX_CTR4(f, m, p1, p2, p3, p4) LINUX_CTR6(f, m, p1, p2, p3, p4, 0, 0) 142#define LINUX_CTR5(f, m, p1, p2, p3, p4, p5) LINUX_CTR6(f, m, p1, p2, p3, p4, p5, 0) 143#else 144#define LINUX_CTR(f) 145#define LINUX_CTR0(f, m) 146#define LINUX_CTR1(f, m, p1) 147#define LINUX_CTR2(f, m, p1, p2) 148#define LINUX_CTR3(f, m, p1, p2, p3) 149#define LINUX_CTR4(f, m, p1, p2, p3, p4) 150#define LINUX_CTR5(f, m, p1, p2, p3, p4, p5) 151#define LINUX_CTR6(f, m, p1, p2, p3, p4, p5, p6) 152#endif 153 154#endif /* !_LINUX_UTIL_H_ */ 155