linux_util.h revision 283447
1/*- 2 * Copyright (c) 1994 Christos Zoulas 3 * Copyright (c) 1995 Frank van der Linden 4 * Copyright (c) 1995 Scott Bartram 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 * 29 * from: svr4_util.h,v 1.5 1994/11/18 02:54:31 christos Exp 30 * from: linux_util.h,v 1.2 1995/03/05 23:23:50 fvdl Exp 31 * $FreeBSD: head/sys/compat/linux/linux_util.h 283447 2015-05-24 16:52:45Z dchagin $ 32 */ 33 34#ifndef _LINUX_UTIL_H_ 35#define _LINUX_UTIL_H_ 36 37#include <vm/vm.h> 38#include <vm/vm_param.h> 39#include <vm/pmap.h> 40#include <machine/vmparam.h> 41#include <sys/exec.h> 42#include <sys/sysent.h> 43#include <sys/syslog.h> 44#include <sys/cdefs.h> 45#include <sys/uio.h> 46 47MALLOC_DECLARE(M_LINUX); 48MALLOC_DECLARE(M_EPOLL); 49MALLOC_DECLARE(M_FUTEX); 50MALLOC_DECLARE(M_FUTEX_WP); 51 52extern const char linux_emul_path[]; 53 54int linux_emul_convpath(struct thread *, const char *, enum uio_seg, char **, int, int); 55 56#define LCONVPATH_AT(td, upath, pathp, i, dfd) \ 57 do { \ 58 int _error; \ 59 \ 60 _error = linux_emul_convpath(td, upath, UIO_USERSPACE, \ 61 pathp, i, dfd); \ 62 if (*(pathp) == NULL) \ 63 return (_error); \ 64 } while (0) 65 66#define LCONVPATH(td, upath, pathp, i) \ 67 LCONVPATH_AT(td, upath, pathp, i, AT_FDCWD) 68 69#define LCONVPATHEXIST(td, upath, pathp) LCONVPATH(td, upath, pathp, 0) 70#define LCONVPATHEXIST_AT(td, upath, pathp, dfd) LCONVPATH_AT(td, upath, pathp, 0, dfd) 71#define LCONVPATHCREAT(td, upath, pathp) LCONVPATH(td, upath, pathp, 1) 72#define LCONVPATHCREAT_AT(td, upath, pathp, dfd) LCONVPATH_AT(td, upath, pathp, 1, dfd) 73#define LFREEPATH(path) free(path, M_TEMP) 74 75#define DUMMY(s) \ 76LIN_SDT_PROBE_DEFINE0(dummy, s, entry); \ 77LIN_SDT_PROBE_DEFINE0(dummy, s, not_implemented); \ 78LIN_SDT_PROBE_DEFINE1(dummy, s, return, "int"); \ 79int \ 80linux_ ## s(struct thread *td, struct linux_ ## s ## _args *args) \ 81{ \ 82 static pid_t pid; \ 83 \ 84 LIN_SDT_PROBE0(dummy, s, entry); \ 85 \ 86 if (pid != td->td_proc->p_pid) { \ 87 linux_msg(td, "syscall %s not implemented", #s); \ 88 LIN_SDT_PROBE0(dummy, s, not_implemented); \ 89 pid = td->td_proc->p_pid; \ 90 }; \ 91 \ 92 LIN_SDT_PROBE1(dummy, s, return, ENOSYS); \ 93 return (ENOSYS); \ 94} \ 95struct __hack 96 97void linux_msg(const struct thread *td, const char *fmt, ...) 98 __printflike(2, 3); 99 100struct linux_device_handler { 101 char *bsd_driver_name; 102 char *linux_driver_name; 103 char *bsd_device_name; 104 char *linux_device_name; 105 int linux_major; 106 int linux_minor; 107 int linux_char_device; 108}; 109 110int linux_device_register_handler(struct linux_device_handler *h); 111int linux_device_unregister_handler(struct linux_device_handler *h); 112char *linux_driver_get_name_dev(device_t dev); 113int linux_driver_get_major_minor(const char *node, int *major, int *minor); 114char *linux_get_char_devices(void); 115void linux_free_get_char_devices(char *string); 116 117#if defined(KTR) 118 119#define KTR_LINUX KTR_SUBSYS 120#define LINUX_CTRFMT(nm, fmt) #nm"("fmt")" 121 122#define LINUX_CTR6(f, m, p1, p2, p3, p4, p5, p6) do { \ 123 CTR6(KTR_LINUX, LINUX_CTRFMT(f, m), \ 124 p1, p2, p3, p4, p5, p6); \ 125} while (0) 126 127#define LINUX_CTR(f) LINUX_CTR6(f, "", 0, 0, 0, 0, 0, 0) 128#define LINUX_CTR0(f, m) LINUX_CTR6(f, m, 0, 0, 0, 0, 0, 0) 129#define LINUX_CTR1(f, m, p1) LINUX_CTR6(f, m, p1, 0, 0, 0, 0, 0) 130#define LINUX_CTR2(f, m, p1, p2) LINUX_CTR6(f, m, p1, p2, 0, 0, 0, 0) 131#define LINUX_CTR3(f, m, p1, p2, p3) LINUX_CTR6(f, m, p1, p2, p3, 0, 0, 0) 132#define LINUX_CTR4(f, m, p1, p2, p3, p4) LINUX_CTR6(f, m, p1, p2, p3, p4, 0, 0) 133#define LINUX_CTR5(f, m, p1, p2, p3, p4, p5) LINUX_CTR6(f, m, p1, p2, p3, p4, p5, 0) 134#else 135#define LINUX_CTR(f) 136#define LINUX_CTR0(f, m) 137#define LINUX_CTR1(f, m, p1) 138#define LINUX_CTR2(f, m, p1, p2) 139#define LINUX_CTR3(f, m, p1, p2, p3) 140#define LINUX_CTR4(f, m, p1, p2, p3, p4) 141#define LINUX_CTR5(f, m, p1, p2, p3, p4, p5) 142#define LINUX_CTR6(f, m, p1, p2, p3, p4, p5, p6) 143#endif 144 145#endif /* !_LINUX_UTIL_H_ */ 146