linux_util.h revision 235063
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 235063 2012-05-05 19:42:38Z netchild $ 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 47extern const char linux_emul_path[]; 48 49int linux_emul_convpath(struct thread *, const char *, enum uio_seg, char **, int, int); 50 51#define LCONVPATH_AT(td, upath, pathp, i, dfd) \ 52 do { \ 53 int _error; \ 54 \ 55 _error = linux_emul_convpath(td, upath, UIO_USERSPACE, \ 56 pathp, i, dfd); \ 57 if (*(pathp) == NULL) \ 58 return (_error); \ 59 } while (0) 60 61#define LCONVPATH(td, upath, pathp, i) \ 62 LCONVPATH_AT(td, upath, pathp, i, AT_FDCWD) 63 64#define LCONVPATHEXIST(td, upath, pathp) LCONVPATH(td, upath, pathp, 0) 65#define LCONVPATHEXIST_AT(td, upath, pathp, dfd) LCONVPATH_AT(td, upath, pathp, 0, dfd) 66#define LCONVPATHCREAT(td, upath, pathp) LCONVPATH(td, upath, pathp, 1) 67#define LCONVPATHCREAT_AT(td, upath, pathp, dfd) LCONVPATH_AT(td, upath, pathp, 1, dfd) 68#define LFREEPATH(path) free(path, M_TEMP) 69 70#define DUMMY(s) \ 71LIN_SDT_PROBE_DEFINE0(dummy, s, entry); \ 72LIN_SDT_PROBE_DEFINE0(dummy, s, not_implemented); \ 73LIN_SDT_PROBE_DEFINE1(dummy, s, return, "int"); \ 74int \ 75linux_ ## s(struct thread *td, struct linux_ ## s ## _args *args) \ 76{ \ 77 static pid_t pid; \ 78 \ 79 LIN_SDT_PROBE0(dummy, s, entry); \ 80 \ 81 if (pid != td->td_proc->p_pid) { \ 82 linux_msg(td, "syscall %s not implemented", #s); \ 83 LIN_SDT_PROBE0(dummy, s, not_implemented); \ 84 pid = td->td_proc->p_pid; \ 85 }; \ 86 \ 87 LIN_SDT_PROBE1(dummy, s, return, ENOSYS); \ 88 return (ENOSYS); \ 89} \ 90struct __hack 91 92void linux_msg(const struct thread *td, const char *fmt, ...) 93 __printflike(2, 3); 94 95struct linux_device_handler { 96 char *bsd_driver_name; 97 char *linux_driver_name; 98 char *bsd_device_name; 99 char *linux_device_name; 100 int linux_major; 101 int linux_minor; 102 int linux_char_device; 103}; 104 105int linux_device_register_handler(struct linux_device_handler *h); 106int linux_device_unregister_handler(struct linux_device_handler *h); 107char *linux_driver_get_name_dev(device_t dev); 108int linux_driver_get_major_minor(const char *node, int *major, int *minor); 109char *linux_get_char_devices(void); 110void linux_free_get_char_devices(char *string); 111 112#if defined(KTR) 113 114#define KTR_LINUX KTR_SUBSYS 115#define LINUX_CTRFMT(nm, fmt) #nm"("fmt")" 116 117#define LINUX_CTR6(f, m, p1, p2, p3, p4, p5, p6) do { \ 118 if (ldebug(f)) \ 119 CTR6(KTR_LINUX, LINUX_CTRFMT(f, m), \ 120 p1, p2, p3, p4, p5, p6); \ 121} while (0) 122 123#define LINUX_CTR(f) LINUX_CTR6(f, "", 0, 0, 0, 0, 0, 0) 124#define LINUX_CTR0(f, m) LINUX_CTR6(f, m, 0, 0, 0, 0, 0, 0) 125#define LINUX_CTR1(f, m, p1) LINUX_CTR6(f, m, p1, 0, 0, 0, 0, 0) 126#define LINUX_CTR2(f, m, p1, p2) LINUX_CTR6(f, m, p1, p2, 0, 0, 0, 0) 127#define LINUX_CTR3(f, m, p1, p2, p3) LINUX_CTR6(f, m, p1, p2, p3, 0, 0, 0) 128#define LINUX_CTR4(f, m, p1, p2, p3, p4) LINUX_CTR6(f, m, p1, p2, p3, p4, 0, 0) 129#define LINUX_CTR5(f, m, p1, p2, p3, p4, p5) LINUX_CTR6(f, m, p1, p2, p3, p4, p5, 0) 130#else 131#define LINUX_CTR(f) 132#define LINUX_CTR0(f, m) 133#define LINUX_CTR1(f, m, p1) 134#define LINUX_CTR2(f, m, p1, p2) 135#define LINUX_CTR3(f, m, p1, p2, p3) 136#define LINUX_CTR4(f, m, p1, p2, p3, p4) 137#define LINUX_CTR5(f, m, p1, p2, p3, p4, p5) 138#define LINUX_CTR6(f, m, p1, p2, p3, p4, p5, p6) 139#endif 140 141#endif /* !_LINUX_UTIL_H_ */ 142