linux_util.h revision 283421
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 283421 2015-05-24 15:51:18Z 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); 48 49extern const char linux_emul_path[]; 50 51int linux_emul_convpath(struct thread *, const char *, enum uio_seg, char **, int, int); 52 53#define LCONVPATH_AT(td, upath, pathp, i, dfd) \ 54 do { \ 55 int _error; \ 56 \ 57 _error = linux_emul_convpath(td, upath, UIO_USERSPACE, \ 58 pathp, i, dfd); \ 59 if (*(pathp) == NULL) \ 60 return (_error); \ 61 } while (0) 62 63#define LCONVPATH(td, upath, pathp, i) \ 64 LCONVPATH_AT(td, upath, pathp, i, AT_FDCWD) 65 66#define LCONVPATHEXIST(td, upath, pathp) LCONVPATH(td, upath, pathp, 0) 67#define LCONVPATHEXIST_AT(td, upath, pathp, dfd) LCONVPATH_AT(td, upath, pathp, 0, dfd) 68#define LCONVPATHCREAT(td, upath, pathp) LCONVPATH(td, upath, pathp, 1) 69#define LCONVPATHCREAT_AT(td, upath, pathp, dfd) LCONVPATH_AT(td, upath, pathp, 1, dfd) 70#define LFREEPATH(path) free(path, M_TEMP) 71 72#define DUMMY(s) \ 73LIN_SDT_PROBE_DEFINE0(dummy, s, entry); \ 74LIN_SDT_PROBE_DEFINE0(dummy, s, not_implemented); \ 75LIN_SDT_PROBE_DEFINE1(dummy, s, return, "int"); \ 76int \ 77linux_ ## s(struct thread *td, struct linux_ ## s ## _args *args) \ 78{ \ 79 static pid_t pid; \ 80 \ 81 LIN_SDT_PROBE0(dummy, s, entry); \ 82 \ 83 if (pid != td->td_proc->p_pid) { \ 84 linux_msg(td, "syscall %s not implemented", #s); \ 85 LIN_SDT_PROBE0(dummy, s, not_implemented); \ 86 pid = td->td_proc->p_pid; \ 87 }; \ 88 \ 89 LIN_SDT_PROBE1(dummy, s, return, ENOSYS); \ 90 return (ENOSYS); \ 91} \ 92struct __hack 93 94void linux_msg(const struct thread *td, const char *fmt, ...) 95 __printflike(2, 3); 96 97struct linux_device_handler { 98 char *bsd_driver_name; 99 char *linux_driver_name; 100 char *bsd_device_name; 101 char *linux_device_name; 102 int linux_major; 103 int linux_minor; 104 int linux_char_device; 105}; 106 107int linux_device_register_handler(struct linux_device_handler *h); 108int linux_device_unregister_handler(struct linux_device_handler *h); 109char *linux_driver_get_name_dev(device_t dev); 110int linux_driver_get_major_minor(const char *node, int *major, int *minor); 111char *linux_get_char_devices(void); 112void linux_free_get_char_devices(char *string); 113 114#if defined(KTR) 115 116#define KTR_LINUX KTR_SUBSYS 117#define LINUX_CTRFMT(nm, fmt) #nm"("fmt")" 118 119#define LINUX_CTR6(f, m, p1, p2, p3, p4, p5, p6) do { \ 120 if (ldebug(f)) \ 121 CTR6(KTR_LINUX, LINUX_CTRFMT(f, m), \ 122 p1, p2, p3, p4, p5, p6); \ 123} while (0) 124 125#define LINUX_CTR(f) LINUX_CTR6(f, "", 0, 0, 0, 0, 0, 0) 126#define LINUX_CTR0(f, m) LINUX_CTR6(f, m, 0, 0, 0, 0, 0, 0) 127#define LINUX_CTR1(f, m, p1) LINUX_CTR6(f, m, p1, 0, 0, 0, 0, 0) 128#define LINUX_CTR2(f, m, p1, p2) LINUX_CTR6(f, m, p1, p2, 0, 0, 0, 0) 129#define LINUX_CTR3(f, m, p1, p2, p3) LINUX_CTR6(f, m, p1, p2, p3, 0, 0, 0) 130#define LINUX_CTR4(f, m, p1, p2, p3, p4) LINUX_CTR6(f, m, p1, p2, p3, p4, 0, 0) 131#define LINUX_CTR5(f, m, p1, p2, p3, p4, p5) LINUX_CTR6(f, m, p1, p2, p3, p4, p5, 0) 132#else 133#define LINUX_CTR(f) 134#define LINUX_CTR0(f, m) 135#define LINUX_CTR1(f, m, p1) 136#define LINUX_CTR2(f, m, p1, p2) 137#define LINUX_CTR3(f, m, p1, p2, p3) 138#define LINUX_CTR4(f, m, p1, p2, p3, p4) 139#define LINUX_CTR5(f, m, p1, p2, p3, p4, p5) 140#define LINUX_CTR6(f, m, p1, p2, p3, p4, p5, p6) 141#endif 142 143#endif /* !_LINUX_UTIL_H_ */ 144